+--- /dev/null
++++ b/arch/ubicom32/crypto/aes_ubicom32.c
+@@ -0,0 +1,458 @@
++/*
++ * arch/ubicom32/crypto/aes_ubicom32.c
++ * Ubicom32 implementation of the AES Cipher Algorithm.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <crypto/aes.h>
++#include <crypto/algapi.h>
++#include <linux/err.h>
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/spinlock.h>
++#include "crypto_ubicom32.h"
++#include <asm/linkage.h>
++
++struct ubicom32_aes_ctx {
++ u8 key[AES_MAX_KEY_SIZE];
++ u32 ctrl;
++ int key_len;
++};
++
++static inline void aes_hw_set_key(const u8 *key, u8 key_len)
++{
++ /*
++ * switch case has more overhead than 4 move.4 instructions, so just copy 256 bits
++ */
++ SEC_SET_KEY_256(key);
++}
++
++static inline void aes_hw_set_iv(const u8 *iv)
++{
++ SEC_SET_IV_4W(iv);
++}
++
++static inline void aes_hw_cipher(u8 *out, const u8 *in)
++{
++ SEC_SET_INPUT_4W(in);
++
++ asm volatile (
++ " ; start AES by writing 0x40(SECURITY_BASE) \n\t"
++ " move.4 0x40(%0), #0x01 \n\t"
++ " pipe_flush 0 \n\t"
++ " \n\t"
++ " ; wait for the module to calculate the output \n\t"
++ " btst 0x04(%0), #0 \n\t"
++ " jmpne.f .-4 \n\t"
++ :
++ : "a" (SEC_BASE)
++ : "cc"
++ );
++
++ SEC_GET_OUTPUT_4W(out);
++}
++
++static int __ocm_text aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
++ unsigned int key_len)
++{
++ struct ubicom32_aes_ctx *uctx = crypto_tfm_ctx(tfm);
++
++ uctx->key_len = key_len;
++ memcpy(uctx->key, in_key, key_len);
++
++ /*
++ * leave out HASH_ALG (none = 0), CBC (no = 0), DIR (unknown) yet
++ */
++ switch (uctx->key_len) {
++ case 16:
++ uctx->ctrl = SEC_KEY_128_BITS | SEC_ALG_AES;
++ break;
++ case 24:
++ uctx->ctrl = SEC_KEY_192_BITS | SEC_ALG_AES;
++ break;
++ case 32:
++ uctx->ctrl = SEC_KEY_256_BITS | SEC_ALG_AES;
++ break;
++ }
++
++ return 0;
++}
++
++static inline void aes_cipher(struct crypto_tfm *tfm, u8 *out, const u8 *in, u32 extra_flags)
++{
++ const struct ubicom32_aes_ctx *uctx = crypto_tfm_ctx(tfm);
++
++ hw_crypto_lock();
++ hw_crypto_check();
++ hw_crypto_set_ctrl(uctx->ctrl | extra_flags);
++
++ aes_hw_set_key(uctx->key, uctx->key_len);
++ aes_hw_cipher(out, in);
++
++ hw_crypto_unlock();
++}
++
++static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
++{
++ aes_cipher(tfm, out, in, SEC_DIR_ENCRYPT);
++}
++
++static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
++{
++ aes_cipher(tfm, out, in, SEC_DIR_DECRYPT);
++}
++
++static struct crypto_alg aes_alg = {
++ .cra_name = "aes",
++ .cra_driver_name = "aes-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
++ .cra_blocksize = AES_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_aes_ctx),
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(aes_alg.cra_list),
++ .cra_u = {
++ .cipher = {
++ .cia_min_keysize = AES_MIN_KEY_SIZE,
++ .cia_max_keysize = AES_MAX_KEY_SIZE,
++ .cia_setkey = aes_set_key,
++ .cia_encrypt = aes_encrypt,
++ .cia_decrypt = aes_decrypt,
++ }
++ }
++};
++
++static void __ocm_text ecb_aes_crypt_loop(u8 *out, u8 *in, unsigned int n)
++{
++ while (likely(n)) {
++ aes_hw_cipher(out, in);
++ out += AES_BLOCK_SIZE;
++ in += AES_BLOCK_SIZE;
++ n -= AES_BLOCK_SIZE;
++ }
++}
++
++static int __ocm_text ecb_aes_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
++ struct scatterlist *src, unsigned int nbytes, u32 extra_flags)
++{
++ const struct ubicom32_aes_ctx *uctx = crypto_blkcipher_ctx(desc->tfm);
++ int ret;
++
++ struct blkcipher_walk walk;
++ blkcipher_walk_init(&walk, dst, src, nbytes);
++ ret = blkcipher_walk_virt(desc, &walk);
++ if (ret) {
++ return ret;
++ }
++
++ hw_crypto_lock();
++ hw_crypto_check();
++
++ hw_crypto_set_ctrl(uctx->ctrl | extra_flags);
++ aes_hw_set_key(uctx->key, uctx->key_len);
++
++ while (likely((nbytes = walk.nbytes))) {
++ /* only use complete blocks */
++ unsigned int n = nbytes & ~(AES_BLOCK_SIZE - 1);
++ u8 *out = walk.dst.virt.addr;
++ u8 *in = walk.src.virt.addr;
++
++ /* finish n/16 blocks */
++ ecb_aes_crypt_loop(out, in, n);
++
++ nbytes &= AES_BLOCK_SIZE - 1;
++ ret = blkcipher_walk_done(desc, &walk, nbytes);
++ }
++
++ hw_crypto_unlock();
++ return ret;
++}
++
++static int ecb_aes_encrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst, struct scatterlist *src,
++ unsigned int nbytes)
++{
++ return ecb_aes_crypt(desc, dst, src, nbytes, SEC_DIR_ENCRYPT);
++}
++
++static int ecb_aes_decrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst, struct scatterlist *src,
++ unsigned int nbytes)
++{
++ return ecb_aes_crypt(desc, dst, src, nbytes, SEC_DIR_DECRYPT);
++}
++
++static struct crypto_alg ecb_aes_alg = {
++ .cra_name = "ecb(aes)",
++ .cra_driver_name = "ecb-aes-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
++ .cra_blocksize = AES_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_aes_ctx),
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_type = &crypto_blkcipher_type,
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(ecb_aes_alg.cra_list),
++ .cra_u = {
++ .blkcipher = {
++ .min_keysize = AES_MIN_KEY_SIZE,
++ .max_keysize = AES_MAX_KEY_SIZE,
++ .setkey = aes_set_key,
++ .encrypt = ecb_aes_encrypt,
++ .decrypt = ecb_aes_decrypt,
++ }
++ }
++};
++
++#if CRYPTO_UBICOM32_LOOP_ASM
++void __ocm_text cbc_aes_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ asm volatile (
++ "; set init. iv 4w \n\t"
++ " move.4 0x50(%0), 0x0(%3) \n\t"
++ " move.4 0x54(%0), 0x4(%3) \n\t"
++ " move.4 0x58(%0), 0x8(%3) \n\t"
++ " move.4 0x5c(%0), 0xc(%3) \n\t"
++ " \n\t"
++ "; we know n > 0, so we can always \n\t"
++ "; load the first block \n\t"
++ "; set input 4w \n\t"
++ " move.4 0x30(%0), 0x0(%2) \n\t"
++ " move.4 0x34(%0), 0x4(%2) \n\t"
++ " move.4 0x38(%0), 0x8(%2) \n\t"
++ " move.4 0x3c(%0), 0xc(%2) \n\t"
++ " \n\t"
++ "; kickoff hw \n\t"
++ " move.4 0x40(%0), %2 \n\t"
++ " \n\t"
++ "; update n & flush \n\t"
++ " add.4 %4, #-16, %4 \n\t"
++ " pipe_flush 0 \n\t"
++ " \n\t"
++ "; while (n): work on 2nd block \n\t"
++ " 1: lsl.4 d15, %4, #0x0 \n\t"
++ " jmpeq.f 5f \n\t"
++ " \n\t"
++ "; set input 4w (2nd) \n\t"
++ " move.4 0x30(%0), 0x10(%2) \n\t"
++ " move.4 0x34(%0), 0x14(%2) \n\t"
++ " move.4 0x38(%0), 0x18(%2) \n\t"
++ " move.4 0x3c(%0), 0x1c(%2) \n\t"
++ " \n\t"
++ "; update n/in asap while waiting \n\t"
++ " add.4 %4, #-16, %4 \n\t"
++ " move.4 d15, 16(%2)++ \n\t"
++ " \n\t"
++ "; wait for the previous output \n\t"
++ " btst 0x04(%0), #0 \n\t"
++ " jmpne.f -4 \n\t"
++ " \n\t"
++ "; read previous output \n\t"
++ " move.4 0x0(%1), 0x50(%0) \n\t"
++ " move.4 0x4(%1), 0x54(%0) \n\t"
++ " move.4 0x8(%1), 0x58(%0) \n\t"
++ " move.4 0xc(%1), 0x5c(%0) \n\t"
++ " \n\t"
++ "; kick off hw for 2nd input \n\t"
++ " move.4 0x40(%0), %2 \n\t"
++ " \n\t"
++ "; update out asap \n\t"
++ " move.4 d15, 16(%1)++ \n\t"
++ " \n\t"
++ "; go back to loop \n\t"
++ " jmpt 1b \n\t"
++ " \n\t"
++ "; wait for last output \n\t"
++ " 5: btst 0x04(%0), #0 \n\t"
++ " jmpne.f -4 \n\t"
++ " \n\t"
++ "; read last output \n\t"
++ " move.4 0x0(%1), 0x50(%0) \n\t"
++ " move.4 0x4(%1), 0x54(%0) \n\t"
++ " move.4 0x8(%1), 0x58(%0) \n\t"
++ " move.4 0xc(%1), 0x5c(%0) \n\t"
++ " \n\t"
++ "; copy out iv \n\t"
++ " move.4 0x0(%3), 0x50(%0) \n\t"
++ " move.4 0x4(%3), 0x54(%0) \n\t"
++ " move.4 0x8(%3), 0x58(%0) \n\t"
++ " move.4 0xc(%3), 0x5c(%0) \n\t"
++ " \n\t"
++ :
++ : "a" (SEC_BASE), "a" (out), "a" (in), "a" (iv), "d" (n)
++ : "d15", "cc"
++ );
++}
++
++#else
++
++static void __ocm_text cbc_aes_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ aes_hw_set_iv(iv);
++ while (likely(n)) {
++ aes_hw_cipher(out, in);
++ out += AES_BLOCK_SIZE;
++ in += AES_BLOCK_SIZE;
++ n -= AES_BLOCK_SIZE;
++ }
++ SEC_COPY_4W(iv, out - AES_BLOCK_SIZE);
++}
++
++#endif
++
++static void __ocm_text cbc_aes_decrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ while (likely(n)) {
++ aes_hw_set_iv(iv);
++ SEC_COPY_4W(iv, in);
++ aes_hw_cipher(out, in);
++ out += AES_BLOCK_SIZE;
++ in += AES_BLOCK_SIZE;
++ n -= AES_BLOCK_SIZE;
++ }
++}
++
++static int __ocm_text cbc_aes_crypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst, struct scatterlist *src,
++ unsigned int nbytes, u32 extra_flags)
++{
++ struct ubicom32_aes_ctx *uctx = crypto_blkcipher_ctx(desc->tfm);
++ int ret;
++
++ struct blkcipher_walk walk;
++ blkcipher_walk_init(&walk, dst, src, nbytes);
++ ret = blkcipher_walk_virt(desc, &walk);
++ if (unlikely(ret)) {
++ return ret;
++ }
++
++ hw_crypto_lock();
++ hw_crypto_check();
++
++ hw_crypto_set_ctrl(uctx->ctrl | extra_flags);
++ aes_hw_set_key(uctx->key, uctx->key_len);
++
++ while (likely((nbytes = walk.nbytes))) {
++ /* only use complete blocks */
++ unsigned int n = nbytes & ~(AES_BLOCK_SIZE - 1);
++ if (likely(n)) {
++ u8 *out = walk.dst.virt.addr;
++ u8 *in = walk.src.virt.addr;
++
++ if (extra_flags & SEC_DIR_ENCRYPT) {
++ cbc_aes_encrypt_loop(out, in, walk.iv, n);
++ } else {
++ cbc_aes_decrypt_loop(out, in, walk.iv, n);
++ }
++ }
++
++ nbytes &= AES_BLOCK_SIZE - 1;
++ ret = blkcipher_walk_done(desc, &walk, nbytes);
++ }
++ hw_crypto_unlock();
++
++ return ret;
++}
++
++static int __ocm_text cbc_aes_encrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst, struct scatterlist *src,
++ unsigned int nbytes)
++{
++ return cbc_aes_crypt(desc, dst, src, nbytes, SEC_DIR_ENCRYPT | SEC_CBC_SET);
++}
++
++static int __ocm_text cbc_aes_decrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst, struct scatterlist *src,
++ unsigned int nbytes)
++{
++ return cbc_aes_crypt(desc, dst, src, nbytes, SEC_DIR_DECRYPT | SEC_CBC_SET);
++}
++
++static struct crypto_alg cbc_aes_alg = {
++ .cra_name = "cbc(aes)",
++ .cra_driver_name = "cbc-aes-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
++ .cra_blocksize = AES_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_aes_ctx),
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_type = &crypto_blkcipher_type,
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(cbc_aes_alg.cra_list),
++ .cra_u = {
++ .blkcipher = {
++ .min_keysize = AES_MIN_KEY_SIZE,
++ .max_keysize = AES_MAX_KEY_SIZE,
++ .ivsize = AES_BLOCK_SIZE,
++ .setkey = aes_set_key,
++ .encrypt = cbc_aes_encrypt,
++ .decrypt = cbc_aes_decrypt,
++ }
++ }
++};
++
++static int __init aes_init(void)
++{
++ int ret;
++
++ hw_crypto_init();
++
++ ret = crypto_register_alg(&aes_alg);
++ if (ret)
++ goto aes_err;
++
++ ret = crypto_register_alg(&ecb_aes_alg);
++ if (ret)
++ goto ecb_aes_err;
++
++ ret = crypto_register_alg(&cbc_aes_alg);
++ if (ret)
++ goto cbc_aes_err;
++
++out:
++ return ret;
++
++cbc_aes_err:
++ crypto_unregister_alg(&ecb_aes_alg);
++ecb_aes_err:
++ crypto_unregister_alg(&aes_alg);
++aes_err:
++ goto out;
++}
++
++static void __exit aes_fini(void)
++{
++ crypto_unregister_alg(&cbc_aes_alg);
++ crypto_unregister_alg(&ecb_aes_alg);
++ crypto_unregister_alg(&aes_alg);
++}
++
++module_init(aes_init);
++module_exit(aes_fini);
++
++MODULE_ALIAS("aes");
++
++MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/arch/ubicom32/crypto/crypto_des.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/crypto/crypto_des.h
++ * Function for checking keys for the DES and Triple DES Encryption
++ * algorithms.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef __CRYPTO_DES_H__
++#define __CRYPTO_DES_H__
++
++extern int crypto_des_check_key(const u8*, unsigned int, u32*);
++
++#endif /* __CRYPTO_DES_H__ */
+--- /dev/null
++++ b/arch/ubicom32/crypto/crypto_ubicom32.c
+@@ -0,0 +1,50 @@
++/*
++ * arch/ubicom32/crypto/crypto_ubicom32.c
++ * Generic code to support ubicom32 hardware crypto accelerator
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include "crypto_ubicom32.h"
++
++spinlock_t crypto_ubicom32_lock;
++bool crypto_ubicom32_inited = false;
++volatile bool crypto_ubicom32_on = false;
++volatile unsigned long crypto_ubicom32_last_use;
++
++struct timer_list crypto_ubicom32_ps_timer;
++void crypto_ubicom32_ps_check(unsigned long data)
++{
++ unsigned long idle_time = msecs_to_jiffies(HW_CRYPTO_PS_MAX_IDLE_MS);
++
++ BUG_ON(!crypto_ubicom32_on);
++
++ if (((jiffies - crypto_ubicom32_last_use) > idle_time) && spin_trylock_bh(&crypto_ubicom32_lock)) {
++ hw_crypto_turn_off();
++ spin_unlock_bh(&crypto_ubicom32_lock);
++ return;
++ }
++
++ /* keep monitoring */
++ hw_crypto_ps_start();
++}
+--- /dev/null
++++ b/arch/ubicom32/crypto/crypto_ubicom32.h
+@@ -0,0 +1,346 @@
++/*
++ * arch/ubicom32/crypto/crypto_ubicom32.h
++ * Support for Ubicom32 cryptographic instructions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _CRYPTO_ARCH_UBICOM32_CRYPT_H
++#define _CRYPTO_ARCH_UBICOM32_CRYPT_H
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/jiffies.h>
++#include <linux/timer.h>
++#include <linux/spinlock.h>
++#include <asm/errno.h>
++#include <asm/io.h>
++#include <asm/ip5000.h>
++
++#define CRYPTO_UBICOM32_LOOP_ASM 1
++#define CRYPTO_UBICOM32_ALIGNMENT 4
++#define SEC_ALIGNED(p) (((u32)p & 3) == 0)
++
++#define SEC_BASE SECURITY_BASE
++#define SEC_KEY_OFFSET SECURITY_KEY_VALUE(0)
++#define SEC_INPUT_OFFSET SECURITY_KEY_IN(0)
++#define SEC_OUTPUT_OFFSET SECURITY_KEY_OUT(0)
++#define SEC_HASH_OFFSET SECURITY_KEY_HASH(0)
++
++#define SEC_KEY_128_BITS SECURITY_CTRL_KEY_SIZE(0)
++#define SEC_KEY_192_BITS SECURITY_CTRL_KEY_SIZE(1)
++#define SEC_KEY_256_BITS SECURITY_CTRL_KEY_SIZE(2)
++
++#define SEC_HASH_NONE SECURITY_CTRL_HASH_ALG_NONE
++#define SEC_HASH_MD5 SECURITY_CTRL_HASH_ALG_MD5
++#define SEC_HASH_SHA1 SECURITY_CTRL_HASH_ALG_SHA1
++
++#define SEC_CBC_SET SECURITY_CTRL_CBC
++#define SEC_CBC_NONE 0
++
++#define SEC_ALG_AES SECURITY_CTRL_CIPHER_ALG_AES
++#define SEC_ALG_NONE SECURITY_CTRL_CIPHER_ALG_NONE
++#define SEC_ALG_DES SECURITY_CTRL_CIPHER_ALG_DES
++#define SEC_ALG_3DES SECURITY_CTRL_CIPHER_ALG_3DES
++
++#define SEC_DIR_ENCRYPT SECURITY_CTRL_ENCIPHER
++#define SEC_DIR_DECRYPT 0
++
++#define CRYPTO_UBICOM32_PRIORITY 300
++#define CRYPTO_UBICOM32_COMPOSITE_PRIORITY 400
++
++#define HW_CRYPTO_PS_MAX_IDLE_MS 100 /* idle time (ms) before shuting down sm */
++
++extern spinlock_t crypto_ubicom32_lock;
++extern bool crypto_ubicom32_inited;
++extern volatile bool crypto_ubicom32_on;
++extern volatile unsigned long crypto_ubicom32_last_use;
++extern struct timer_list crypto_ubicom32_ps_timer;
++extern void crypto_ubicom32_ps_check(unsigned long data);
++
++#define SEC_COPY_2W(t, s) \
++ asm volatile ( \
++ " move.4 0(%0), 0(%1) \n\t" \
++ " move.4 4(%0), 4(%1) \n\t" \
++ \
++ : \
++ : "a" (t), "a" (s) \
++ )
++
++#define SEC_COPY_4W(t, s) \
++ asm volatile ( \
++ " move.4 0(%0), 0(%1) \n\t" \
++ " move.4 4(%0), 4(%1) \n\t" \
++ " move.4 8(%0), 8(%1) \n\t" \
++ " move.4 12(%0), 12(%1) \n\t" \
++ : \
++ : "a" (t), "a" (s) \
++ )
++
++#define SEC_COPY_5W(t, s) \
++ asm volatile ( \
++ " move.4 0(%0), 0(%1) \n\t" \
++ " move.4 4(%0), 4(%1) \n\t" \
++ " move.4 8(%0), 8(%1) \n\t" \
++ " move.4 12(%0), 12(%1) \n\t" \
++ " move.4 16(%0), 16(%1) \n\t" \
++ : \
++ : "a" (t), "a" (s) \
++ )
++
++#define SEC_SET_KEY_2W(x) \
++ asm volatile ( \
++ " ; write key to Security Keyblock \n\t" \
++ " move.4 0x10(%0), 0(%1) \n\t" \
++ " move.4 0x14(%0), 4(%1) \n\t" \
++ : \
++ : "a" (SECURITY_BASE), "a" (x) \
++ )
++
++#define SEC_SET_KEY_4W(x) \
++ asm volatile ( \
++ " ; write key to Security Keyblock \n\t" \
++ " move.4 0x10(%0), 0(%1) \n\t" \
++ " move.4 0x14(%0), 4(%1) \n\t" \
++ " move.4 0x18(%0), 8(%1) \n\t" \
++ " move.4 0x1c(%0), 12(%1) \n\t" \
++ : \
++ : "a"(SECURITY_BASE), "a"(x) \
++ )
++
++#define SEC_SET_KEY_6W(x) \
++ asm volatile ( \
++ " ; write key to Security Keyblock \n\t" \
++ " move.4 0x10(%0), 0(%1) \n\t" \
++ " move.4 0x14(%0), 4(%1) \n\t" \
++ " move.4 0x18(%0), 8(%1) \n\t" \
++ " move.4 0x1c(%0), 12(%1) \n\t" \
++ " move.4 0x20(%0), 16(%1) \n\t" \
++ " move.4 0x24(%0), 20(%1) \n\t" \
++ : \
++ : "a" (SECURITY_BASE), "a" (x) \
++ )
++
++#define SEC_SET_KEY_8W(x) \
++ asm volatile ( \
++ " ; write key to Security Keyblock \n\t" \
++ " move.4 0x10(%0), 0(%1) \n\t" \
++ " move.4 0x14(%0), 4(%1) \n\t" \
++ " move.4 0x18(%0), 8(%1) \n\t" \
++ " move.4 0x1c(%0), 12(%1) \n\t" \
++ " move.4 0x20(%0), 16(%1) \n\t" \
++ " move.4 0x24(%0), 20(%1) \n\t" \
++ " move.4 0x28(%0), 24(%1) \n\t" \
++ " move.4 0x2c(%0), 28(%1) \n\t" \
++ : \
++ : "a" (SECURITY_BASE), "a" (x) \
++ )
++
++#define SEC_SET_KEY_64(k) SEC_SET_KEY_2W(k)
++#define SEC_SET_KEY_128(k) SEC_SET_KEY_4W(k)
++#define SEC_SET_KEY_192(k) SEC_SET_KEY_6W(k)
++#define SEC_SET_KEY_256(k) SEC_SET_KEY_8W(k)
++
++#define DES_SET_KEY(x) SEC_SET_KEY_64(x)
++#define DES3_SET_KEY(x) SEC_SET_KEY_192(x)
++
++#define SEC_SET_INPUT_2W(x) \
++ asm volatile ( \
++ " ; write key to Security Keyblock \n\t" \
++ " move.4 0x30(%0), 0(%1) \n\t" \
++ " move.4 0x34(%0), 4(%1) \n\t" \
++ : \
++ : "a" (SECURITY_BASE), "a" (x) \
++ )
++
++#define SEC_GET_OUTPUT_2W(x) \
++ asm volatile ( \
++ " ; write key to Security Keyblock \n\t" \
++ " move.4 0(%1), 0x50(%0) \n\t" \
++ " move.4 4(%1), 0x54(%0) \n\t" \
++ : \
++ : "a" (SECURITY_BASE), "a" (x) \
++ )
++
++#define SEC_SET_INPUT_4W(x) \
++ asm volatile ( \
++ " ; write key to Security Keyblock \n\t" \
++ " move.4 0x30(%0), 0(%1) \n\t" \
++ " move.4 0x34(%0), 4(%1) \n\t" \
++ " move.4 0x38(%0), 8(%1) \n\t" \
++ " move.4 0x3c(%0), 12(%1) \n\t" \
++ : \
++ : "a" (SECURITY_BASE), "a" (x) \
++ )
++
++#define SEC_GET_OUTPUT_4W(x) \
++ asm volatile ( \
++ " ; read output from Security Keyblock \n\t" \
++ " move.4 0(%1), 0x50(%0) \n\t" \
++ " move.4 4(%1), 0x54(%0) \n\t" \
++ " move.4 8(%1), 0x58(%0) \n\t" \
++ " move.4 12(%1), 0x5c(%0) \n\t" \
++ : \
++ : "a" (SECURITY_BASE), "a" (x) \
++ )
++
++#define SEC_SET_IV_4W(x) \
++ asm volatile ( \
++ " ; write IV to Security Keyblock \n\t" \
++ " move.4 0x50(%0), 0(%1) \n\t" \
++ " move.4 0x54(%0), 4(%1) \n\t" \
++ " move.4 0x58(%0), 8(%1) \n\t" \
++ " move.4 0x5c(%0), 12(%1) \n\t" \
++ : \
++ : "a" (SECURITY_BASE), "a" (x) \
++ )
++
++#define SEC_PIPE_FLUSH() asm volatile ( " pipe_flush 0 \n\t" )
++
++static inline void hw_crypto_set_ctrl(uint32_t c)
++{
++ asm volatile (
++ " move.4 0(%0), %1 \n\t"
++ :
++ : "a" (SECURITY_BASE + SECURITY_CTRL), "d" (c)
++ );
++}
++
++static inline void hw_crypto_ps_start(void)
++{
++ crypto_ubicom32_ps_timer.expires = jiffies + msecs_to_jiffies(HW_CRYPTO_PS_MAX_IDLE_MS >> 1);
++ add_timer(&crypto_ubicom32_ps_timer);
++}
++
++static inline void hw_crypto_turn_on(void)
++{
++ asm volatile (
++ " moveai A4, %0 \n\t"
++ " bset 0x0(A4), 0x0(A4), %1 \n\t"
++ " cycles 11 \n\t"
++ :
++ : "i" (OCP_BASE >> 7), "i" (GEN_CLK_PLL_SECURITY_BIT_NO)
++ : "a4", "cc"
++ );
++ crypto_ubicom32_on = true;
++}
++
++static inline void hw_crypto_turn_off(void)
++{
++ asm volatile (
++ " moveai A4, %0 \n\t"
++ " bclr 0x0(A4), 0x0(A4), %1 \n\t"
++ :
++ : "i" (OCP_BASE >> 7), "i" (GEN_CLK_PLL_SECURITY_BIT_NO)
++ : "a4", "cc"
++ );
++ crypto_ubicom32_on = false;
++}
++
++/*
++ * hw_crypto_check
++ * Most probably hw crypto is called in clusters and it makes no sense to turn it off
++ * and on and waster 13 cycles every time.
++ */
++static inline void hw_crypto_check(void)
++{
++ if (likely(crypto_ubicom32_on)) {
++ return;
++ }
++ crypto_ubicom32_last_use = jiffies;
++ hw_crypto_turn_on();
++ hw_crypto_ps_start();
++}
++
++/*
++ * hw_crypto_ps_init
++ * Init power save timer
++ */
++static inline void hw_crypto_ps_init(void)
++{
++ init_timer_deferrable(&crypto_ubicom32_ps_timer);
++ crypto_ubicom32_ps_timer.function = crypto_ubicom32_ps_check;
++ crypto_ubicom32_ps_timer.data = 0;
++}
++
++/*
++ * hw_crypto_init()
++ * Initialize OCP security module lock and disables its clock.
++ */
++static inline void hw_crypto_init(void)
++{
++ if (!crypto_ubicom32_inited) {
++ crypto_ubicom32_inited = true;
++ spin_lock_init(&crypto_ubicom32_lock);
++ hw_crypto_ps_init();
++ hw_crypto_turn_off();
++ }
++}
++
++/*
++ * hw_crypto_lock()
++ * Locks the OCP security module and enables its clock.
++ */
++static inline void hw_crypto_lock(void)
++{
++ spin_lock_bh(&crypto_ubicom32_lock);
++}
++
++/*
++ * hw_crypto_unlock()
++ * Unlocks the OCP security module and disables its clock.
++ */
++static inline void hw_crypto_unlock(void)
++{
++ crypto_ubicom32_last_use = jiffies;
++ spin_unlock_bh(&crypto_ubicom32_lock);
++}
++
++#define CONFIG_CRYPTO_UBICOM32_DEBUG 1
++
++#ifdef CONFIG_CRYPTO_UBICOM32_DEBUG
++static inline void hex_dump(void *buf, int b_size, const char *msg)
++{
++ u8 *b = (u8 *)buf;
++ int i;
++ if (msg) {
++ printk("%s:\t", msg);
++ }
++
++ for (i=0; i < b_size; i++) {
++ printk("%02x ", b[i]);
++ if ((i & 3) == 3) {
++ printk(" ");
++ }
++ if ((i & 31) == 31) {
++ printk("\n");
++ }
++ }
++ printk("\n");
++}
++#define UBICOM32_SEC_DUMP(a, b, c) hex_dump(a, b, c)
++#else
++#define UBICOM32_SEC_DUMP(a, b, c)
++#endif
++
++#endif /* _CRYPTO_ARCH_UBICOM32_CRYPT_H */
+--- /dev/null
++++ b/arch/ubicom32/crypto/des_check_key.c
+@@ -0,0 +1,148 @@
++/*
++ * arch/ubicom32/crypto/des_check_key.c
++ * Ubicom32 architecture function for checking keys for the DES and
++ * Tripple DES Encryption algorithms.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * Originally released as descore by Dana L. How <how@isl.stanford.edu>.
++ * Modified by Raimar Falke <rf13@inf.tu-dresden.de> for the Linux-Kernel.
++ * Derived from Cryptoapi and Nettle implementations, adapted for in-place
++ * scatterlist interface. Changed LGPL to GPL per section 3 of the LGPL.
++ *
++ * s390 Version:
++ * Copyright IBM Corp. 2003
++ * Author(s): Thomas Spatzier
++ * Jan Glauber (jan.glauber@de.ibm.com)
++ *
++ * Derived from "crypto/des.c"
++ * Copyright (c) 1992 Dana L. How.
++ * Copyright (c) Raimar Falke <rf13@inf.tu-dresden.de>
++ * Copyright (c) Gisle Sflensminde <gisle@ii.uib.no>
++ * Copyright (C) 2001 Niels Mvller.
++ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/errno.h>
++#include <linux/crypto.h>
++#include "crypto_des.h"
++
++#define ROR(d,c,o) ((d) = (d) >> (c) | (d) << (o))
++
++static const u8 parity[] = {
++ 8,1,0,8,0,8,8,0,0,8,8,0,8,0,2,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,3,
++ 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
++ 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
++ 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
++ 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
++ 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
++ 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
++ 4,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,5,0,8,0,8,8,0,0,8,8,0,8,0,6,8,
++};
++
++/*
++ * RFC2451: Weak key checks SHOULD be performed.
++ */
++int
++crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags)
++{
++ u32 n, w;
++
++ n = parity[key[0]]; n <<= 4;
++ n |= parity[key[1]]; n <<= 4;
++ n |= parity[key[2]]; n <<= 4;
++ n |= parity[key[3]]; n <<= 4;
++ n |= parity[key[4]]; n <<= 4;
++ n |= parity[key[5]]; n <<= 4;
++ n |= parity[key[6]]; n <<= 4;
++ n |= parity[key[7]];
++ w = 0x88888888L;
++
++ if ((*flags & CRYPTO_TFM_REQ_WEAK_KEY)
++ && !((n - (w >> 3)) & w)) { /* 1 in 10^10 keys passes this test */
++ if (n < 0x41415151) {
++ if (n < 0x31312121) {
++ if (n < 0x14141515) {
++ /* 01 01 01 01 01 01 01 01 */
++ if (n == 0x11111111) goto weak;
++ /* 01 1F 01 1F 01 0E 01 0E */
++ if (n == 0x13131212) goto weak;
++ } else {
++ /* 01 E0 01 E0 01 F1 01 F1 */
++ if (n == 0x14141515) goto weak;
++ /* 01 FE 01 FE 01 FE 01 FE */
++ if (n == 0x16161616) goto weak;
++ }
++ } else {
++ if (n < 0x34342525) {
++ /* 1F 01 1F 01 0E 01 0E 01 */
++ if (n == 0x31312121) goto weak;
++ /* 1F 1F 1F 1F 0E 0E 0E 0E (?) */
++ if (n == 0x33332222) goto weak;
++ } else {
++ /* 1F E0 1F E0 0E F1 0E F1 */
++ if (n == 0x34342525) goto weak;
++ /* 1F FE 1F FE 0E FE 0E FE */
++ if (n == 0x36362626) goto weak;
++ }
++ }
++ } else {
++ if (n < 0x61616161) {
++ if (n < 0x44445555) {
++ /* E0 01 E0 01 F1 01 F1 01 */
++ if (n == 0x41415151) goto weak;
++ /* E0 1F E0 1F F1 0E F1 0E */
++ if (n == 0x43435252) goto weak;
++ } else {
++ /* E0 E0 E0 E0 F1 F1 F1 F1 (?) */
++ if (n == 0x44445555) goto weak;
++ /* E0 FE E0 FE F1 FE F1 FE */
++ if (n == 0x46465656) goto weak;
++ }
++ } else {
++ if (n < 0x64646565) {
++ /* FE 01 FE 01 FE 01 FE 01 */
++ if (n == 0x61616161) goto weak;
++ /* FE 1F FE 1F FE 0E FE 0E */
++ if (n == 0x63636262) goto weak;
++ } else {
++ /* FE E0 FE E0 FE F1 FE F1 */
++ if (n == 0x64646565) goto weak;
++ /* FE FE FE FE FE FE FE FE */
++ if (n == 0x66666666) goto weak;
++ }
++ }
++ }
++ }
++ return 0;
++weak:
++ *flags |= CRYPTO_TFM_RES_WEAK_KEY;
++ return -EINVAL;
++}
++
++EXPORT_SYMBOL(crypto_des_check_key);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("Key Check function for DES & DES3 Cipher Algorithms");
+--- /dev/null
++++ b/arch/ubicom32/crypto/des_ubicom32.c
+@@ -0,0 +1,761 @@
++/*
++ * arch/ubicom32/crypto/des_ubicom32.c
++ * Ubicom32 implementation of the DES Cipher Algorithm.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <crypto/algapi.h>
++#include <linux/init.h>
++#include <linux/module.h>
++
++#include "crypto_ubicom32.h"
++extern int crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags);
++
++#define DES_BLOCK_SIZE 8
++#define DES_KEY_SIZE 8
++
++#define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE)
++#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE
++
++#define DES3_SUB_KEY(key, i) (((u8 *)key) + (i * DES_KEY_SIZE))
++
++enum des_ops {
++ DES_ENCRYPT,
++ DES_DECRYPT,
++
++ DES3_EDE_ENCRYPT,
++ DES3_EDE_DECRYPT,
++
++#ifdef DES3_EEE
++ DES3_EEE_ENCRYPT,
++ DES3_EEE_DECRYPT,
++#endif
++};
++
++struct ubicom32_des_ctx {
++ u8 key[3 * DES_KEY_SIZE];
++ u32 ctrl;
++ int key_len;
++};
++
++static inline void des_hw_set_key(const u8 *key, u8 key_len)
++{
++ /*
++ * HW 3DES is not tested yet, use DES just as ipOS
++ */
++ DES_SET_KEY(key);
++}
++
++static inline void des_hw_cipher(u8 *out, const u8 *in)
++{
++ SEC_SET_INPUT_2W(in);
++
++ asm volatile (
++ " ; start DES by writing 0x38(SECURITY_BASE) \n\t"
++ " move.4 0x38(%0), #0x01 \n\t"
++ " pipe_flush 0 \n\t"
++ " \n\t"
++ " ; wait for the module to calculate the output \n\t"
++ " btst 0x04(%0), #0 \n\t"
++ " jmpne.f .-4 \n\t"
++ :
++ : "a" (SEC_BASE)
++ : "cc"
++ );
++
++ SEC_GET_OUTPUT_2W(out);
++}
++
++
++static void inline des3_hw_ede_encrypt(u8 *keys, u8 *out, const u8 *in)
++{
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE);
++ des_hw_cipher(out, in);
++
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE);
++ des_hw_cipher(out, out);
++
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE);
++ des_hw_cipher(out, out);
++}
++
++static void inline des3_hw_ede_decrypt(u8 *keys, u8 *out, const u8 *in)
++{
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE);
++ des_hw_cipher(out, in);
++
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE);
++ des_hw_cipher(out, out);
++
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE);
++ des_hw_cipher(out, out);
++}
++
++#ifdef DES3_EEE
++static void inline des3_hw_eee_encrypt(u8 *keys, u8 *out, const u8 *in)
++{
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 0), 2);
++ des_hw_cipher(out, in);
++
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 1), 2);
++ des_hw_cipher(out, out);
++
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 2), 2);
++ des_hw_cipher(out, out);
++}
++
++static void inline des3_hw_eee_decrypt(u8 *keys, u8 *out, const u8 *in)
++{
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 2), 2);
++ des_hw_cipher(out, in);
++
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 1), 2);
++ des_hw_cipher(out, out);
++
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++ des_hw_set_key(DES3_SUB_KEY(keys, 0), 2);
++ des_hw_cipher(out, out);
++}
++#endif
++
++static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
++ unsigned int keylen)
++{
++ struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm);
++ u32 *flags = &tfm->crt_flags;
++ int ret;
++
++ /* test if key is valid (not a weak key) */
++ ret = crypto_des_check_key(key, keylen, flags);
++ if (ret == 0) {
++ memcpy(dctx->key, key, keylen);
++ dctx->key_len = keylen;
++ //dctx->ctrl = (keylen == DES_KEY_SIZE) ? SEC_ALG_DES : SEC_ALG_3DES
++ /* 2DES and 3DES are both implemented with DES hw function */
++ dctx->ctrl = SEC_ALG_DES;
++ }
++ return ret;
++}
++
++static inline void des_cipher_1b(struct crypto_tfm *tfm, u8 *out, const u8 *in, u32 extra_flags)
++{
++ const struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm);
++
++ hw_crypto_lock();
++ hw_crypto_check();
++ hw_crypto_set_ctrl(uctx->ctrl | extra_flags);
++
++ des_hw_set_key(uctx->key, uctx->key_len);
++ des_hw_cipher(out, in);
++
++ hw_crypto_unlock();
++}
++
++static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
++{
++ des_cipher_1b(tfm, out, in, SEC_DIR_ENCRYPT);
++}
++
++static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
++{
++ des_cipher_1b(tfm, out, in, SEC_DIR_DECRYPT);
++}
++
++static struct crypto_alg des_alg = {
++ .cra_name = "des",
++ .cra_driver_name = "des-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
++ .cra_blocksize = DES_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(des_alg.cra_list),
++ .cra_u = {
++ .cipher = {
++ .cia_min_keysize = DES_KEY_SIZE,
++ .cia_max_keysize = DES_KEY_SIZE,
++ .cia_setkey = des_setkey,
++ .cia_encrypt = des_encrypt,
++ .cia_decrypt = des_decrypt,
++ }
++ }
++};
++
++static void ecb_des_ciper_loop(u8 *out, u8 *in, unsigned int n)
++{
++ while (likely(n)) {
++ des_hw_cipher(out, in);
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++
++static void ecb_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
++{
++ while (likely(n)) {
++ des3_hw_ede_encrypt(keys, out, in);
++
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++
++static void ecb_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
++{
++ while (likely(n)) {
++ des3_hw_ede_decrypt(keys, out, in);
++
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++
++#ifdef DES3_EEE
++static void ecb_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
++{
++ while (likely(n)) {
++ des3_hw_eee_encrypt(keys, out, in);
++
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++
++static void ecb_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
++{
++ while (likely(n)) {
++ des3_hw_eee_decrypt(keys, out, in);
++
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++#endif
++
++static inline void ecb_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, unsigned int n)
++{
++ switch (op) {
++ case DES_ENCRYPT:
++ case DES_DECRYPT:
++ /* set the right algo, direction and key once */
++ hw_crypto_set_ctrl(SEC_ALG_DES | (op == DES_ENCRYPT ? SEC_DIR_ENCRYPT : 0));
++ des_hw_set_key(uctx->key, uctx->key_len);
++ ecb_des_ciper_loop(out, in, n);
++ break;
++
++ case DES3_EDE_ENCRYPT:
++ ecb_des3_ede_encrypt_loop(uctx->key, out, in, n);
++ break;
++
++ case DES3_EDE_DECRYPT:
++ ecb_des3_ede_decrypt_loop(uctx->key, out, in, n);
++ break;
++
++#ifdef DES3_EEE
++ case DES3_EEE_ENCRYPT:
++ ecb_des3_eee_encrypt_loop(uctx->key, out, in, n);
++ break;
++
++ case DES3_EEE_DECRYPT:
++ ecb_des3_eee_decrypt_loop(uctx->key, out, in, n);
++ break;
++#endif
++ }
++}
++
++static inline void des_xor_2w(u32 *data, u32 *iv)
++{
++ data[0] ^= iv[0];
++ data[1] ^= iv[1];
++}
++
++static void cbc_des_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ while (likely(n)) {
++ des_xor_2w((u32 *)in, (u32 *)iv);
++ des_hw_cipher(out, in);
++ SEC_COPY_2W(iv, out);
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++
++static void cbc_des_decrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ u8 next_iv[DES_BLOCK_SIZE];
++ while (likely(n)) {
++ SEC_COPY_2W(next_iv, in);
++ des_hw_cipher(out, in);
++ des_xor_2w((u32 *)out, (u32 *)iv);
++ SEC_COPY_2W(iv, next_iv);
++
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++
++static void cbc_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ while (likely(n)) {
++ des_xor_2w((u32 *)in, (u32 *)iv);
++ des3_hw_ede_encrypt(keys, out, in);
++ SEC_COPY_2W(iv, out);
++
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++
++static void cbc_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ u8 next_iv[DES_BLOCK_SIZE];
++ while (likely(n)) {
++ SEC_COPY_2W(next_iv, in);
++ des3_hw_ede_decrypt(keys, out, in);
++ des_xor_2w((u32 *)out, (u32 *)iv);
++ SEC_COPY_2W(iv, next_iv);
++
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++
++#ifdef DES3_EEE
++static void cbc_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ while (likely(n)) {
++ des_xor_2w((u32 *)in, (u32 *)iv);
++ des3_hw_eee_encrypt(keys, out, in);
++ SEC_COPY_2W(iv, out);
++
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++
++static void cbc_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ u8 next_iv[DES_BLOCK_SIZE];
++ while (likely(n)) {
++ SEC_COPY_2W(next_iv, in);
++ des3_hw_eee_decrypt(keys, out, in);
++ des_xor_2w((u32 *)out, (u32 *)iv);
++ SEC_COPY_2W(iv, next_iv);
++
++ out += DES_BLOCK_SIZE;
++ in += DES_BLOCK_SIZE;
++ n -= DES_BLOCK_SIZE;
++ }
++}
++#endif
++
++static inline void cbc_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, u8 *iv, unsigned int n)
++{
++ switch (op) {
++ case DES_ENCRYPT:
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
++ des_hw_set_key(uctx->key, uctx->key_len);
++ cbc_des_encrypt_loop(out, in, iv, n);
++ break;
++
++ case DES_DECRYPT:
++ /* set the right algo, direction and key once */
++ hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
++ des_hw_set_key(uctx->key, uctx->key_len);
++ cbc_des_decrypt_loop(out, in, iv, n);
++ break;
++
++ case DES3_EDE_ENCRYPT:
++ cbc_des3_ede_encrypt_loop(uctx->key, out, in, iv, n);
++ break;
++
++ case DES3_EDE_DECRYPT:
++ cbc_des3_ede_decrypt_loop(uctx->key, out, in, iv, n);
++ break;
++
++#ifdef DES3_EEE
++ case DES3_EEE_ENCRYPT:
++ cbc_des3_eee_encrypt_loop(uctx->key, out, in, iv, n);
++ break;
++
++ case DES3_EEE_DECRYPT:
++ cbc_des3_eee_decrypt_loop(uctx->key, out, in, iv, n);
++ break;
++#endif
++ }
++}
++
++static int des_cipher(struct blkcipher_desc *desc, struct scatterlist *dst,
++ struct scatterlist *src, unsigned int nbytes, u32 extra_flags, enum des_ops op)
++{
++ struct ubicom32_des_ctx *uctx = crypto_blkcipher_ctx(desc->tfm);
++ int ret;
++
++ struct blkcipher_walk walk;
++ blkcipher_walk_init(&walk, dst, src, nbytes);
++ ret = blkcipher_walk_virt(desc, &walk);
++ if (ret) {
++ return ret;
++ }
++
++ hw_crypto_lock();
++ hw_crypto_check();
++
++ while ((nbytes = walk.nbytes)) {
++ /* only use complete blocks */
++ unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
++ u8 *out = walk.dst.virt.addr;
++ u8 *in = walk.src.virt.addr;
++
++ /* finish n/16 blocks */
++ if (extra_flags & SEC_CBC_SET) {
++ cbc_des_cipher_n(uctx, op, out, in, walk.iv, n);
++ } else {
++ ecb_des_cipher_n(uctx, op, out, in, n);
++ }
++
++ nbytes &= DES_BLOCK_SIZE - 1;
++ ret = blkcipher_walk_done(desc, &walk, nbytes);
++ }
++
++ hw_crypto_unlock();
++ return ret;
++}
++
++static int ecb_des_encrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst, struct scatterlist *src,
++ unsigned int nbytes)
++{
++ return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_ENCRYPT);
++}
++
++static int ecb_des_decrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst, struct scatterlist *src,
++ unsigned int nbytes)
++{
++ return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_DECRYPT);
++}
++
++static struct crypto_alg ecb_des_alg = {
++ .cra_name = "ecb(des)",
++ .cra_driver_name = "ecb-des-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
++ .cra_blocksize = DES_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_type = &crypto_blkcipher_type,
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(ecb_des_alg.cra_list),
++ .cra_u = {
++ .blkcipher = {
++ .min_keysize = DES_KEY_SIZE,
++ .max_keysize = DES_KEY_SIZE,
++ .setkey = des_setkey,
++ .encrypt = ecb_des_encrypt,
++ .decrypt = ecb_des_decrypt,
++ }
++ }
++};
++
++static int cbc_des_encrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst, struct scatterlist *src,
++ unsigned int nbytes)
++{
++ return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_ENCRYPT);
++}
++
++static int cbc_des_decrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst, struct scatterlist *src,
++ unsigned int nbytes)
++{
++ return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_DECRYPT);
++}
++
++static struct crypto_alg cbc_des_alg = {
++ .cra_name = "cbc(des)",
++ .cra_driver_name = "cbc-des-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
++ .cra_blocksize = DES_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_type = &crypto_blkcipher_type,
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(cbc_des_alg.cra_list),
++ .cra_u = {
++ .blkcipher = {
++ .min_keysize = DES_KEY_SIZE,
++ .max_keysize = DES_KEY_SIZE,
++ .ivsize = DES_BLOCK_SIZE,
++ .setkey = des_setkey,
++ .encrypt = cbc_des_encrypt,
++ .decrypt = cbc_des_decrypt,
++ }
++ }
++};
++
++/*
++ * RFC2451:
++ *
++ * For DES-EDE3, there is no known need to reject weak or
++ * complementation keys. Any weakness is obviated by the use of
++ * multiple keys.
++ *
++ * However, if the first two or last two independent 64-bit keys are
++ * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
++ * same as DES. Implementers MUST reject keys that exhibit this
++ * property.
++ *
++ */
++static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key,
++ unsigned int keylen)
++{
++ int i, ret;
++ struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm);
++ const u8 *temp_key = key;
++ u32 *flags = &tfm->crt_flags;
++
++ if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
++ memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
++ DES_KEY_SIZE))) {
++
++ *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
++ return -EINVAL;
++ }
++ for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) {
++ ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
++ if (ret < 0)
++ return ret;
++ }
++ memcpy(dctx->key, key, keylen);
++ dctx->ctrl = SEC_ALG_DES; //hw 3DES not working yet
++ dctx->key_len = keylen;
++ return 0;
++}
++
++static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
++{
++ struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm);
++
++ hw_crypto_lock();
++ hw_crypto_check();
++
++ des3_hw_ede_encrypt(uctx->key, dst, src);
++
++ hw_crypto_unlock();
++}
++
++static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
++{
++ struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm);
++
++ hw_crypto_lock();
++ hw_crypto_check();
++
++ des3_hw_ede_decrypt(uctx->key, dst, src);
++
++ hw_crypto_unlock();
++}
++
++static struct crypto_alg des3_192_alg = {
++ .cra_name = "des3_ede",
++ .cra_driver_name = "des3_ede-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
++ .cra_blocksize = DES3_192_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list),
++ .cra_u = {
++ .cipher = {
++ .cia_min_keysize = DES3_192_KEY_SIZE,
++ .cia_max_keysize = DES3_192_KEY_SIZE,
++ .cia_setkey = des3_192_setkey,
++ .cia_encrypt = des3_192_encrypt,
++ .cia_decrypt = des3_192_decrypt,
++ }
++ }
++};
++
++static int ecb_des3_192_encrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst,
++ struct scatterlist *src, unsigned int nbytes)
++{
++ return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_ENCRYPT);
++}
++
++static int ecb_des3_192_decrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst,
++ struct scatterlist *src, unsigned int nbytes)
++{
++ return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_DECRYPT);
++}
++
++static struct crypto_alg ecb_des3_192_alg = {
++ .cra_name = "ecb(des3_ede)",
++ .cra_driver_name = "ecb-des3_ede-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
++ .cra_blocksize = DES3_192_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_type = &crypto_blkcipher_type,
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(
++ ecb_des3_192_alg.cra_list),
++ .cra_u = {
++ .blkcipher = {
++ .min_keysize = DES3_192_KEY_SIZE,
++ .max_keysize = DES3_192_KEY_SIZE,
++ .setkey = des3_192_setkey,
++ .encrypt = ecb_des3_192_encrypt,
++ .decrypt = ecb_des3_192_decrypt,
++ }
++ }
++};
++
++static int cbc_des3_192_encrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst,
++ struct scatterlist *src, unsigned int nbytes)
++{
++ return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_ENCRYPT);
++}
++
++static int cbc_des3_192_decrypt(struct blkcipher_desc *desc,
++ struct scatterlist *dst,
++ struct scatterlist *src, unsigned int nbytes)
++{
++ return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_DECRYPT);
++}
++
++static struct crypto_alg cbc_des3_192_alg = {
++ .cra_name = "cbc(des3_ede)",
++ .cra_driver_name = "cbc-des3_ede-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
++ .cra_blocksize = DES3_192_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
++ .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
++ .cra_type = &crypto_blkcipher_type,
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(
++ cbc_des3_192_alg.cra_list),
++ .cra_u = {
++ .blkcipher = {
++ .min_keysize = DES3_192_KEY_SIZE,
++ .max_keysize = DES3_192_KEY_SIZE,
++ .ivsize = DES3_192_BLOCK_SIZE,
++ .setkey = des3_192_setkey,
++ .encrypt = cbc_des3_192_encrypt,
++ .decrypt = cbc_des3_192_decrypt,
++ }
++ }
++};
++
++static int init(void)
++{
++ int ret = 0;
++
++ hw_crypto_init();
++
++ ret = crypto_register_alg(&des_alg);
++ if (ret)
++ goto des_err;
++ ret = crypto_register_alg(&ecb_des_alg);
++ if (ret)
++ goto ecb_des_err;
++ ret = crypto_register_alg(&cbc_des_alg);
++ if (ret)
++ goto cbc_des_err;
++
++ ret = crypto_register_alg(&des3_192_alg);
++ if (ret)
++ goto des3_192_err;
++ ret = crypto_register_alg(&ecb_des3_192_alg);
++ if (ret)
++ goto ecb_des3_192_err;
++ ret = crypto_register_alg(&cbc_des3_192_alg);
++ if (ret)
++ goto cbc_des3_192_err;
++
++out:
++ return ret;
++
++cbc_des3_192_err:
++ crypto_unregister_alg(&ecb_des3_192_alg);
++ecb_des3_192_err:
++ crypto_unregister_alg(&des3_192_alg);
++des3_192_err:
++ crypto_unregister_alg(&cbc_des_alg);
++cbc_des_err:
++ crypto_unregister_alg(&ecb_des_alg);
++ecb_des_err:
++ crypto_unregister_alg(&des_alg);
++des_err:
++ goto out;
++}
++
++static void __exit fini(void)
++{
++ crypto_unregister_alg(&cbc_des3_192_alg);
++ crypto_unregister_alg(&ecb_des3_192_alg);
++ crypto_unregister_alg(&des3_192_alg);
++ crypto_unregister_alg(&cbc_des_alg);
++ crypto_unregister_alg(&ecb_des_alg);
++ crypto_unregister_alg(&des_alg);
++}
++
++module_init(init);
++module_exit(fini);
++
++MODULE_ALIAS("des");
++MODULE_ALIAS("des3_ede");
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
+--- /dev/null
++++ b/arch/ubicom32/crypto/Makefile
+@@ -0,0 +1,36 @@
++#
++# arch/ubicom32/crypto/Makefile
++# <TODO: Replace with short file description>
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++obj-$(CONFIG_CRYPTO_UBICOM32) += crypto_ubicom32.o
++obj-$(CONFIG_CRYPTO_AES_UBICOM32) += aes_ubicom32.o
++obj-$(CONFIG_CRYPTO_DES_UBICOM32) += des.o
++obj-$(CONFIG_CRYPTO_MD5_UBICOM32) += md5.o
++obj-$(CONFIG_CRYPTO_SHA1_UBICOM32) += sha1.o
++
++des-y := des_ubicom32.o des_check_key.o
++md5-y := md5_ubicom32.o md5_ubicom32_asm.o
++sha1-y := sha1_ubicom32.o
+--- /dev/null
++++ b/arch/ubicom32/crypto/md5_ubicom32_asm.S
+@@ -0,0 +1,235 @@
++/*
++ * arch/ubicom32/crypto/md5_ubicom32_asm.S
++ * MD5 (Message Digest 5) support for Ubicom32 v3 architecture
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#define __ASM__
++#include <asm/ip5000.h>
++
++#ifndef RP
++#define RP A5
++#endif
++
++;*****************************************************************************************
++; The function prototypes
++;*****************************************************************************************
++; void md5_ip5k_init(void)
++; void md5_ip5k_transform(u32_t *data_input)
++; void md5_get_digest(u32_t *digest)
++
++;*****************************************************************************************
++; Inputs
++;*****************************************************************************************;
++; data_input is the pointer to the block of data over which the digest will be calculated.
++; It should be word aligned.
++;
++; digest is the pointer to the block of data into which the digest (the output) will be written.
++; It should be word aligned.
++;
++
++;*****************************************************************************************
++; Outputs
++;*****************************************************************************************
++; None
++
++;*****************************************************************************************
++; An: Address Registers
++;*****************************************************************************************
++#define an_digest A3
++#define an_data_input A3
++#define an_security_block A4
++
++;*****************************************************************************************
++; Hash Constants
++;*****************************************************************************************
++#define HASH_MD5_IN0 0x01234567
++#define HASH_MD5_IN1 0x89abcdef
++#define HASH_MD5_IN2 0xfedcba98
++#define HASH_MD5_IN3 0x76543210
++
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION 2
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_MD5 ((1 << 4) | HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION)
++
++;*****************************************************************************************
++; Hash related defines
++;*****************************************************************************************
++#define hash_control 0x00(an_security_block)
++#define hash_control_low 0x02(an_security_block)
++#define hash_status 0x04(an_security_block)
++
++#define hash_input_0 0x30(an_security_block)
++#define hash_input_1 0x34(an_security_block)
++#define hash_input_2 0x38(an_security_block)
++#define hash_input_3 0x3c(an_security_block)
++#define hash_input_4 0x40(an_security_block)
++
++#define hash_output_0 0x70(an_security_block)
++#define hash_output_0_low 0x72(an_security_block)
++#define hash_output_1 0x74(an_security_block)
++#define hash_output_1_low 0x76(an_security_block)
++#define hash_output_2 0x78(an_security_block)
++#define hash_output_2_low 0x7a(an_security_block)
++#define hash_output_3 0x7c(an_security_block)
++#define hash_output_3_low 0x7e(an_security_block)
++
++;*****************************************************************************************
++; Assembly macros
++;*****************************************************************************************
++ ; C compiler reserves RP (A5) for return address during subroutine call.
++ ; Use RP to return to caller
++.macro call_return_macro
++ calli RP, 0(RP)
++.endm
++
++#if 0
++;*****************************************************************************************
++; void md5_ip5k_init(void)
++; initialize the output registers of the hash module
++;
++ ;.section .text.md5_ip5k_init,"ax",@progbits
++ .section .text
++ .global _md5_ip5k_init
++ .func md5_ip5k_init, _md5_ip5k_init
++
++_md5_ip5k_init:
++ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++ movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5)
++ movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5)
++
++ movei hash_output_0, #%hi(HASH_MD5_IN0)
++ movei hash_output_0_low, #%lo(HASH_MD5_IN0)
++
++ movei hash_output_1, #%hi(HASH_MD5_IN1)
++ movei hash_output_1_low, #%lo(HASH_MD5_IN1)
++
++ movei hash_output_2, #%hi(HASH_MD5_IN2)
++ movei hash_output_2_low, #%lo(HASH_MD5_IN2)
++
++ movei hash_output_3, #%hi(HASH_MD5_IN3)
++ movei hash_output_3_low, #%lo(HASH_MD5_IN3)
++
++ call_return_macro
++ .endfunc
++#endif
++
++;*****************************************************************************************
++; void md5_ip5k_init_digest(u32_t *hash_input)
++; initialize the output registers of the hash module
++
++ ;.section .text.md5_ip5k_init_digest,"ax",@progbits
++ .section .text
++ .global _md5_ip5k_init_digest
++ .func md5_ip5k_init_digest, _md5_ip5k_init_digest
++
++_md5_ip5k_init_digest:
++ movea an_data_input, D0
++
++ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++ movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5)
++ movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_MD5)
++
++ move.4 hash_output_0, (an_data_input)4++
++ move.4 hash_output_1, (an_data_input)4++
++ move.4 hash_output_2, (an_data_input)4++
++ move.4 hash_output_3, (an_data_input)4++
++
++ call_return_macro
++ .endfunc
++
++;*****************************************************************************************
++; void md5_ip5k_transform(u32_t *data_input)
++; performs intermediate transformation step for the hash calculation
++;
++ ;.sect .text.md5_ip5k_transform,"ax",@progbits
++ .section .text
++ .global _md5_ip5k_transform
++ .func md5_ip5k_transform, _md5_ip5k_transform
++
++_md5_ip5k_transform:
++ movea an_data_input, D0
++
++ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++ ; Write the first 128bits (16 bytes)
++ move.4 hash_input_0, (an_data_input)4++
++ move.4 hash_input_1, (an_data_input)4++
++ move.4 hash_input_2, (an_data_input)4++
++ move.4 hash_input_3, (an_data_input)4++
++ move.4 hash_input_4, D0
++
++ move.4 hash_input_0, (an_data_input)4++
++ move.4 hash_input_1, (an_data_input)4++
++ move.4 hash_input_2, (an_data_input)4++
++ move.4 hash_input_3, (an_data_input)4++
++ move.4 hash_input_4, D0
++
++ move.4 hash_input_0, (an_data_input)4++
++ move.4 hash_input_1, (an_data_input)4++
++ move.4 hash_input_2, (an_data_input)4++
++ move.4 hash_input_3, (an_data_input)4++
++ move.4 hash_input_4, D0
++
++ move.4 hash_input_0, (an_data_input)4++
++ move.4 hash_input_1, (an_data_input)4++
++ move.4 hash_input_2, (an_data_input)4++
++ move.4 hash_input_3, (an_data_input)4++
++ move.4 hash_input_4, D0
++
++ pipe_flush 0
++
++md5_ip5k_transform_wait:
++ ; wait for the module to calculate the output hash
++ btst hash_status, #0
++ jmpne.f md5_ip5k_transform_wait
++
++ call_return_macro
++ .endfunc
++
++;*****************************************************************************************
++; void md5_ip5k_get_digest(u32_t *digest)
++; Return the hash of the input data
++;
++ ;.sect .text.md5_get_digest,"ax",@progbits
++ .section .text
++ .global _md5_ip5k_get_digest
++ .func md5_ip5k_get_digest, _md5_ip5k_get_digest
++
++_md5_ip5k_get_digest:
++ movea an_digest, D0
++
++ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++ ; we have finished
++ move.4 0(an_digest), hash_output_0
++ move.4 4(an_digest), hash_output_1
++ move.4 8(an_digest), hash_output_2
++ move.4 12(an_digest), hash_output_3
++
++ call_return_macro
++ .endfunc
++
+--- /dev/null
++++ b/arch/ubicom32/crypto/md5_ubicom32.c
+@@ -0,0 +1,200 @@
++/*
++ * arch/ubicom32/crypto/md5_ubicom32.c
++ * Ubicom32 implementation of the MD5 Secure Hash Algorithm
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/crypto.h>
++
++#include "crypto_ubicom32.h"
++
++#define MD5_DIGEST_SIZE 16
++#define MD5_BLOCK_SIZE 64
++#define MD5_HASH_WORDS 4
++
++extern void _md5_ip5k_init_digest(u32_t *digest);
++extern void _md5_ip5k_transform(u32_t *data_input);
++extern void _md5_ip5k_get_digest(u32_t *digest);
++
++struct ubicom32_md5_ctx {
++ u64 count; /* message length */
++ u32 state[MD5_HASH_WORDS];
++ u8 buf[2 * MD5_BLOCK_SIZE];
++};
++
++static void md5_init(struct crypto_tfm *tfm)
++{
++ struct ubicom32_md5_ctx *mctx = crypto_tfm_ctx(tfm);
++ mctx->state[0] = 0x01234567;
++ mctx->state[1] = 0x89abcdef;
++ mctx->state[2] = 0xfedcba98;
++ mctx->state[3] = 0x76543210;
++
++ mctx->count = 0;
++}
++
++static inline void _md5_process(u32 *digest, const u8 *data)
++{
++ _md5_ip5k_transform((u32 *)data);
++}
++
++static void md5_update(struct crypto_tfm *tfm, const u8 *data,
++ unsigned int len)
++{
++ struct ubicom32_md5_ctx *mctx = crypto_tfm_ctx(tfm);
++ int index, clen;
++
++ /* how much is already in the buffer? */
++ index = mctx->count & 0x3f;
++
++ mctx->count += len;
++
++ if (index + len < MD5_BLOCK_SIZE) {
++ goto store_only;
++ }
++
++ hw_crypto_lock();
++ hw_crypto_check();
++
++ /* init digest set ctrl register too */
++ _md5_ip5k_init_digest(mctx->state);
++
++ if (unlikely(index == 0 && SEC_ALIGNED(data))) {
++fast_process:
++ while (len >= MD5_BLOCK_SIZE) {
++ _md5_process(mctx->state, data);
++ data += MD5_BLOCK_SIZE;
++ len -= MD5_BLOCK_SIZE;
++ }
++ goto store;
++ }
++
++ /* process one stored block */
++ if (index) {
++ clen = MD5_BLOCK_SIZE - index;
++ memcpy(mctx->buf + index, data, clen);
++ _md5_process(mctx->state, mctx->buf);
++ data += clen;
++ len -= clen;
++ index = 0;
++ }
++
++ if (likely(SEC_ALIGNED(data))) {
++ goto fast_process;
++ }
++
++ /* process as many blocks as possible */
++ while (len >= MD5_BLOCK_SIZE) {
++ memcpy(mctx->buf, data, MD5_BLOCK_SIZE);
++ _md5_process(mctx->state, mctx->buf);
++ data += MD5_BLOCK_SIZE;
++ len -= MD5_BLOCK_SIZE;
++ }
++
++store:
++ _md5_ip5k_get_digest(mctx->state);
++ hw_crypto_unlock();
++
++store_only:
++ /* anything left? */
++ if (len)
++ memcpy(mctx->buf + index , data, len);
++}
++
++/* Add padding and return the message digest. */
++static void md5_final(struct crypto_tfm *tfm, u8 *out)
++{
++ struct ubicom32_md5_ctx *mctx = crypto_tfm_ctx(tfm);
++ u32 bits[2];
++ unsigned int index, end;
++
++ /* must perform manual padding */
++ index = mctx->count & 0x3f;
++ end = (index < 56) ? MD5_BLOCK_SIZE : (2 * MD5_BLOCK_SIZE);
++
++ /* start pad with 1 */
++ mctx->buf[index] = 0x80;
++
++ /* pad with zeros */
++ index++;
++ memset(mctx->buf + index, 0x00, end - index - 8);
++
++ /* append message length */
++ bits[0] = mctx->count << 3;
++ bits[1] = mctx->count >> 29;
++ __cpu_to_le32s(bits);
++ __cpu_to_le32s(bits + 1);
++
++ memcpy(mctx->buf + end - 8, &bits, sizeof(bits));
++
++ /* force to use the mctx->buf and ignore the partial buf */
++ mctx->count = mctx->count & ~0x3f;
++ md5_update(tfm, mctx->buf, end);
++
++ /* copy digest to out */
++ memcpy(out, mctx->state, MD5_DIGEST_SIZE);
++
++ /* wipe context */
++ memset(mctx, 0, sizeof *mctx);
++}
++
++static struct crypto_alg alg = {
++ .cra_name = "md5",
++ .cra_driver_name= "md5-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
++ .cra_blocksize = MD5_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_md5_ctx),
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(alg.cra_list),
++ .cra_u = {
++ .digest = {
++ .dia_digestsize = MD5_DIGEST_SIZE,
++ .dia_init = md5_init,
++ .dia_update = md5_update,
++ .dia_final = md5_final,
++ }
++ }
++};
++
++static int __init init(void)
++{
++ hw_crypto_init();
++ return crypto_register_alg(&alg);
++}
++
++static void __exit fini(void)
++{
++ crypto_unregister_alg(&alg);
++}
++
++module_init(init);
++module_exit(fini);
++
++MODULE_ALIAS("md5");
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("MD5 Secure Hash Algorithm");
+--- /dev/null
++++ b/arch/ubicom32/crypto/sha1_ubicom32_asm.S
+@@ -0,0 +1,244 @@
++/*
++ * arch/ubicom32/crypto/sha1_ubicom32_asm.S
++ * SHA1 hash support for Ubicom32 architecture V3.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#define __ASM__
++#include <asm/ip5000.h>
++
++#ifndef RP
++#define RP A5
++#endif
++
++;*****************************************************************************************
++; The function prototype
++;*****************************************************************************************
++; void sha1_ip5k_init(void)
++; void sha1_ip5k_transform(u32_t *data_input)
++; void sha1_ip5k_output(u32_t *digest)
++
++;*****************************************************************************************
++; Inputs
++;*****************************************************************************************
++; data_input is the pointer to the block of data over which the digest will be calculated.
++; It should be word aligned.
++;
++; digest is the pointer to the block of data into which the digest (the output) will be written.
++; It should be word aligned.
++;
++
++;*****************************************************************************************
++; Outputs
++;*****************************************************************************************
++; None
++
++;*****************************************************************************************
++; Hash Constants
++;*****************************************************************************************
++#define HASH_SHA1_IN0 0x67452301
++#define HASH_SHA1_IN1 0xefcdab89
++#define HASH_SHA1_IN2 0x98badcfe
++#define HASH_SHA1_IN3 0x10325476
++#define HASH_SHA1_IN4 0xc3d2e1f0
++
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION 2
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1 ((1 << 5) | HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION)
++
++;*****************************************************************************************
++; An: Address Registers
++;*****************************************************************************************
++#define an_digest a4
++#define an_data_input a4
++#define an_security_block a3
++
++;*****************************************************************************************
++; Hash related defines
++;*****************************************************************************************
++#define hash_control 0x00(an_security_block)
++#define hash_control_low 0x02(an_security_block)
++#define hash_status 0x04(an_security_block)
++
++#define hash_input_0 0x30(an_security_block)
++#define hash_input_1 0x34(an_security_block)
++#define hash_input_2 0x38(an_security_block)
++#define hash_input_3 0x3c(an_security_block)
++#define hash_input_4 0x40(an_security_block)
++
++#define hash_output_0 0x70(an_security_block)
++#define hash_output_0_low 0x72(an_security_block)
++#define hash_output_1 0x74(an_security_block)
++#define hash_output_1_low 0x76(an_security_block)
++#define hash_output_2 0x78(an_security_block)
++#define hash_output_2_low 0x7a(an_security_block)
++#define hash_output_3 0x7c(an_security_block)
++#define hash_output_3_low 0x7e(an_security_block)
++#define hash_output_4 0x80(an_security_block)
++#define hash_output_4_low 0x82(an_security_block)
++
++;*****************************************************************************************
++; Assembly macros
++;*****************************************************************************************
++ ; C compiler reserves RP (A5) for return address during subroutine call.
++ ; Use RP to return to caller
++.macro call_return_macro
++ calli RP, 0(RP)
++.endm
++
++;*****************************************************************************************
++; void sha1_ip5k_init(void)
++; initialize the output registers of the hash module
++
++ ;.section .text.sha1_ip5k_init,"ax",@progbits
++ .section .ocm_text,"ax",@progbits
++ .global _sha1_ip5k_init
++ .func sha1_ip5k_init, _sha1_ip5k_init
++
++_sha1_ip5k_init:
++ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++ movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1)
++ movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1)
++
++ movei hash_output_0, #%hi(HASH_SHA1_IN0)
++ movei hash_output_0_low, #%lo(HASH_SHA1_IN0)
++
++ movei hash_output_1, #%hi(HASH_SHA1_IN1)
++ movei hash_output_1_low, #%lo(HASH_SHA1_IN1)
++
++ movei hash_output_2, #%hi(HASH_SHA1_IN2)
++ movei hash_output_2_low, #%lo(HASH_SHA1_IN2)
++
++ movei hash_output_3, #%hi(HASH_SHA1_IN3)
++ movei hash_output_3_low, #%lo(HASH_SHA1_IN3)
++
++ movei hash_output_4, #%hi(HASH_SHA1_IN4)
++ movei hash_output_4_low, #%lo(HASH_SHA1_IN4)
++
++ call_return_macro
++ .endfunc
++
++;*****************************************************************************************
++; void sha1_ip5k_init_digest(u32_t *hash_input)
++; initialize the output registers of the hash module
++
++ ;.section .text.sha1_ip5k_init_digest,"ax",@progbits
++ .section .ocm_text,"ax",@progbits
++ .global _sha1_ip5k_init_digest
++ .func sha1_ip5k_init_digest, _sha1_ip5k_init_digest
++
++_sha1_ip5k_init_digest:
++ movea an_data_input, D0
++
++ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++ movei hash_control, #%hi(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1)
++ movei hash_control_low, #%lo(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1)
++
++ move.4 hash_output_0, (an_data_input)4++
++ move.4 hash_output_1, (an_data_input)4++
++ move.4 hash_output_2, (an_data_input)4++
++ move.4 hash_output_3, (an_data_input)4++
++ move.4 hash_output_4, (an_data_input)4++
++
++ call_return_macro
++ .endfunc
++
++;*****************************************************************************************
++; void sha1_ip5k_transform(u32_t *data_input)
++; performs intermediate transformation step for the hash calculation
++
++ ;.section .text.sha1_ip5k_transform,"ax",@progbits
++ .section .ocm_text,"ax",@progbits
++ .global _sha1_ip5k_transform
++ .func sha1_ip5k_transform, _sha1_ip5k_transform
++
++_sha1_ip5k_transform:
++ movea an_data_input, D0
++
++ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++ ; Write the first 128bits (16 bytes)
++ move.4 hash_input_0, (an_data_input)4++
++ move.4 hash_input_1, (an_data_input)4++
++ move.4 hash_input_2, (an_data_input)4++
++ move.4 hash_input_3, (an_data_input)4++
++ move.4 hash_input_4, D0
++
++ move.4 hash_input_0, (an_data_input)4++
++ move.4 hash_input_1, (an_data_input)4++
++ move.4 hash_input_2, (an_data_input)4++
++ move.4 hash_input_3, (an_data_input)4++
++ move.4 hash_input_4, D0
++
++ move.4 hash_input_0, (an_data_input)4++
++ move.4 hash_input_1, (an_data_input)4++
++ move.4 hash_input_2, (an_data_input)4++
++ move.4 hash_input_3, (an_data_input)4++
++ move.4 hash_input_4, D0
++
++ move.4 hash_input_0, (an_data_input)4++
++ move.4 hash_input_1, (an_data_input)4++
++ move.4 hash_input_2, (an_data_input)4++
++ move.4 hash_input_3, (an_data_input)4++
++ move.4 hash_input_4, D0
++
++ pipe_flush 0
++
++sha1_ip5k_transform_wait:
++ ; wait for the module to calculate the output hash
++ btst hash_status, #0
++ jmpne.f sha1_ip5k_transform_wait
++
++ call_return_macro
++ .endfunc
++
++;*****************************************************************************************
++; void sha1_ip5k_output(u32_t *digest)
++; Return the hash of the input data
++
++ ;.section .text.sha1_ip5k_output,"ax",@progbits
++ .section .ocm_text,"ax",@progbits
++ .global _sha1_ip5k_output
++ .func sha1_ip5k_output, _sha1_ip5k_output
++
++_sha1_ip5k_output:
++ movea an_digest, D0
++
++ moveai an_security_block, #SECURITY_BASE_EFFECTIVE_ADDRESS
++
++ ; we have finished
++ move.4 0(an_digest), hash_output_0
++ move.4 4(an_digest), hash_output_1
++ move.4 8(an_digest), hash_output_2
++ move.4 12(an_digest), hash_output_3
++ move.4 16(an_digest), hash_output_4
++
++ call_return_macro
++ .endfunc
++
++;*****************************************************************************************
++;END ;End of program code
++;*****************************************************************************************
+--- /dev/null
++++ b/arch/ubicom32/crypto/sha1_ubicom32.c
+@@ -0,0 +1,354 @@
++/*
++ * arch/ubicom32/crypto/sha1_ubicom32.c
++ * Ubicom32 implementation of the SHA1 Secure Hash Algorithm.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/crypto.h>
++#include <crypto/sha.h>
++#include <asm/linkage.h>
++
++#include "crypto_ubicom32.h"
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION 2
++#define HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1 ((1 << 5) | HASH_SECURITY_BLOCK_CONTROL_INIT_NO_ENCYPTION)
++
++struct ubicom32_sha1_ctx {
++ u64 count; /* message length */
++ u32 state[5];
++ u8 buf[2 * SHA1_BLOCK_SIZE];
++};
++
++static inline void sha1_clear_2ws(u8 *buf, int wc)
++{
++ asm volatile (
++ "1: move.4 (%0)4++, #0 \n\t"
++ " move.4 (%0)4++, #0 \n\t"
++ " sub.4 %1, #2, %1 \n\t"
++ " jmple.f 1b \n\t"
++ :
++ : "a" (buf), "d" (wc)
++ : "cc"
++ );
++}
++
++/* only wipe out count, state, and 1st half of buf - 9 bytes at most */
++#define sha1_wipe_out(sctx) sha1_clear_2ws((u8 *)sctx, 2 + 5 + 16 - 2)
++
++static inline void sha1_init_digest(u32 *digest)
++{
++ hw_crypto_set_ctrl(HASH_SECURITY_BLOCK_CONTROL_INIT_SHA1);
++ asm volatile (
++ " ; move digests to hash_output regs \n\t"
++ " move.4 0x70(%0), 0x0(%1) \n\t"
++ " move.4 0x74(%0), 0x4(%1) \n\t"
++ " move.4 0x78(%0), 0x8(%1) \n\t"
++ " move.4 0x7c(%0), 0xc(%1) \n\t"
++ " move.4 0x80(%0), 0x10(%1) \n\t"
++ :
++ : "a" (SEC_BASE), "a" (digest)
++ );
++}
++
++static inline void sha1_transform_feed(const u8 *in)
++{
++ asm volatile (
++ " ; write the 1st 16 bytes \n\t"
++ " move.4 0x30(%0), 0x0(%1) \n\t"
++ " move.4 0x34(%0), 0x4(%1) \n\t"
++ " move.4 0x38(%0), 0x8(%1) \n\t"
++ " move.4 0x3c(%0), 0xc(%1) \n\t"
++ " move.4 0x40(%0), %1 \n\t"
++ " ; write the 2nd 16 bytes \n\t"
++ " move.4 0x30(%0), 0x10(%1) \n\t"
++ " move.4 0x34(%0), 0x14(%1) \n\t"
++ " move.4 0x38(%0), 0x18(%1) \n\t"
++ " move.4 0x3c(%0), 0x1c(%1) \n\t"
++ " move.4 0x40(%0), %1 \n\t"
++ " ; write the 3rd 16 bytes \n\t"
++ " move.4 0x30(%0), 0x20(%1) \n\t"
++ " move.4 0x34(%0), 0x24(%1) \n\t"
++ " move.4 0x38(%0), 0x28(%1) \n\t"
++ " move.4 0x3c(%0), 0x2c(%1) \n\t"
++ " move.4 0x40(%0), %1 \n\t"
++ " ; write the 4th 16 bytes \n\t"
++ " move.4 0x30(%0), 0x30(%1) \n\t"
++ " move.4 0x34(%0), 0x34(%1) \n\t"
++ " move.4 0x38(%0), 0x38(%1) \n\t"
++ " move.4 0x3c(%0), 0x3c(%1) \n\t"
++ " move.4 0x40(%0), %1 \n\t"
++ " pipe_flush 0 \n\t"
++ :
++ : "a"(SEC_BASE), "a"(in)
++ );
++}
++
++static inline void sha1_transform_wait(void)
++{
++ asm volatile (
++ " btst 0x04(%0), #0 \n\t"
++ " jmpne.f -4 \n\t"
++ :
++ : "a"(SEC_BASE)
++ : "cc"
++ );
++}
++
++static inline void sha1_output_digest(u32 *digest)
++{
++ asm volatile (
++ " move.4 0x0(%1), 0x70(%0) \n\t"
++ " move.4 0x4(%1), 0x74(%0) \n\t"
++ " move.4 0x8(%1), 0x78(%0) \n\t"
++ " move.4 0xc(%1), 0x7c(%0) \n\t"
++ " move.4 0x10(%1), 0x80(%0) \n\t"
++ :
++ : "a" (SEC_BASE), "a" (digest)
++ );
++}
++
++static __ocm_text void sha1_init(struct crypto_tfm *tfm)
++{
++ struct ubicom32_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
++
++ sctx->state[0] = SHA1_H0;
++ sctx->state[1] = SHA1_H1;
++ sctx->state[2] = SHA1_H2;
++ sctx->state[3] = SHA1_H3;
++ sctx->state[4] = SHA1_H4;
++ sctx->count = 0;
++}
++
++static void __ocm_text sha1_update(struct crypto_tfm *tfm, const u8 *data,
++ unsigned int len)
++{
++ struct ubicom32_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
++ int index, clen;
++
++ /* how much is already in the buffer? */
++ index = sctx->count & 0x3f;
++
++ sctx->count += len;
++
++ if (index + len < SHA1_BLOCK_SIZE) {
++ goto store_only;
++ }
++
++ hw_crypto_lock();
++ hw_crypto_check();
++
++ /* init digest set ctrl register too */
++ sha1_init_digest(sctx->state);
++
++ if (unlikely(index == 0 && SEC_ALIGNED(data))) {
++fast_process:
++#if CRYPTO_UBICOM32_LOOP_ASM
++ if (likely(len >= SHA1_BLOCK_SIZE)) {
++ register unsigned int cnt = len >> 6; // loop = len / 64;
++ sha1_transform_feed(data);
++ data += SHA1_BLOCK_SIZE;
++
++ /* cnt is pre-decremented in the loop */
++ asm volatile (
++ "; while (--loop): work on 2nd block \n\t"
++ "1: add.4 %2, #-1, %2 \n\t"
++ " jmpeq.f 5f \n\t"
++ " \n\t"
++ " ; write the 1st 16 bytes \n\t"
++ " move.4 0x30(%1), (%0)4++ \n\t"
++ " move.4 0x34(%1), (%0)4++ \n\t"
++ " move.4 0x38(%1), (%0)4++ \n\t"
++ " move.4 0x3c(%1), (%0)4++ \n\t"
++ " ; can not kick off hw before it \n\t"
++ " ; is done with the prev block \n\t"
++ " \n\t"
++ " btst 0x04(%1), #0 \n\t"
++ " jmpne.f -4 \n\t"
++ " \n\t"
++ " ; tell hw to load 1st 16 bytes \n\t"
++ " move.4 0x40(%1), %2 \n\t"
++ " \n\t"
++ " ; write the 2nd 16 bytes \n\t"
++ " move.4 0x30(%1), (%0)4++ \n\t"
++ " move.4 0x34(%1), (%0)4++ \n\t"
++ " move.4 0x38(%1), (%0)4++ \n\t"
++ " move.4 0x3c(%1), (%0)4++ \n\t"
++ " move.4 0x40(%1), %2 \n\t"
++ " \n\t"
++ " ; write the 3rd 16 bytes \n\t"
++ " move.4 0x30(%1), (%0)4++ \n\t"
++ " move.4 0x34(%1), (%0)4++ \n\t"
++ " move.4 0x38(%1), (%0)4++ \n\t"
++ " move.4 0x3c(%1), (%0)4++ \n\t"
++ " move.4 0x40(%1), %2 \n\t"
++ " \n\t"
++ " ; write the 4th 16 bytes \n\t"
++ " move.4 0x30(%1), (%0)4++ \n\t"
++ " move.4 0x34(%1), (%0)4++ \n\t"
++ " move.4 0x38(%1), (%0)4++ \n\t"
++ " move.4 0x3c(%1), (%0)4++ \n\t"
++ " move.4 0x40(%1), %2 \n\t"
++ " \n\t"
++ "; no need flush, enough insts \n\t"
++ "; before next hw wait \n\t"
++ " \n\t"
++ "; go back to loop \n\t"
++ " jmpt 1b \n\t"
++ " \n\t"
++ "; wait hw for last block \n\t"
++ "5: btst 0x04(%1), #0 \n\t"
++ " jmpne.f -4 \n\t"
++ " \n\t"
++ : "+a" (data)
++ : "a"( SEC_BASE), "d" (cnt)
++ : "cc"
++ );
++
++ len = len & (64 - 1);
++ }
++#else
++ while (likely(len >= SHA1_BLOCK_SIZE)) {
++ sha1_transform_feed(data);
++ data += SHA1_BLOCK_SIZE;
++ len -= SHA1_BLOCK_SIZE;
++ sha1_transform_wait();
++ }
++#endif
++ goto store;
++ }
++
++ /* process one stored block */
++ if (index) {
++ clen = SHA1_BLOCK_SIZE - index;
++ memcpy(sctx->buf + index, data, clen);
++ sha1_transform_feed(sctx->buf);
++ data += clen;
++ len -= clen;
++ index = 0;
++ sha1_transform_wait();
++ }
++
++ if (likely(SEC_ALIGNED(data))) {
++ goto fast_process;
++ }
++
++ /* process as many blocks as possible */
++ if (likely(len >= SHA1_BLOCK_SIZE)) {
++ memcpy(sctx->buf, data, SHA1_BLOCK_SIZE);
++ do {
++ sha1_transform_feed(sctx->buf);
++ data += SHA1_BLOCK_SIZE;
++ len -= SHA1_BLOCK_SIZE;
++ if (likely(len >= SHA1_BLOCK_SIZE)) {
++ memcpy(sctx->buf, data, SHA1_BLOCK_SIZE);
++ sha1_transform_wait();
++ continue;
++ }
++ /* it is the last block */
++ sha1_transform_wait();
++ break;
++ } while (1);
++ }
++
++store:
++ sha1_output_digest(sctx->state);
++ hw_crypto_unlock();
++
++store_only:
++ /* anything left? */
++ if (len)
++ memcpy(sctx->buf + index , data, len);
++}
++
++/* Add padding and return the message digest. */
++static void __ocm_text sha1_final(struct crypto_tfm *tfm, u8 *out)
++{
++ struct ubicom32_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
++ u64 bits;
++ unsigned int index, end;
++
++ /* must perform manual padding */
++ index = sctx->count & 0x3f;
++ end = (index < 56) ? SHA1_BLOCK_SIZE : (2 * SHA1_BLOCK_SIZE);
++
++ /* start pad with 1 */
++ sctx->buf[index] = 0x80;
++
++ /* pad with zeros */
++ index++;
++ memset(sctx->buf + index, 0x00, end - index - 8);
++
++ /* append message length */
++ bits = sctx->count << 3 ;
++ SEC_COPY_2W(sctx->buf + end - 8, &bits);
++
++ /* force to use the sctx->buf and ignore the partial buf */
++ sctx->count = sctx->count & ~0x3f;
++ sha1_update(tfm, sctx->buf, end);
++
++ /* copy digest to out */
++ SEC_COPY_5W(out, sctx->state);
++
++ /* wipe context */
++ sha1_wipe_out(sctx);
++}
++
++static struct crypto_alg alg = {
++ .cra_name = "sha1",
++ .cra_driver_name= "sha1-ubicom32",
++ .cra_priority = CRYPTO_UBICOM32_PRIORITY,
++ .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
++ .cra_blocksize = SHA1_BLOCK_SIZE,
++ .cra_ctxsize = sizeof(struct ubicom32_sha1_ctx),
++ .cra_module = THIS_MODULE,
++ .cra_list = LIST_HEAD_INIT(alg.cra_list),
++ .cra_u = {
++ .digest = {
++ .dia_digestsize = SHA1_DIGEST_SIZE,
++ .dia_init = sha1_init,
++ .dia_update = sha1_update,
++ .dia_final = sha1_final,
++ }
++ }
++};
++
++static int __init init(void)
++{
++ hw_crypto_init();
++ return crypto_register_alg(&alg);
++}
++
++static void __exit fini(void)
++{
++ crypto_unregister_alg(&alg);
++}
++
++module_init(init);
++module_exit(fini);
++
++MODULE_ALIAS("sha1");
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
+--- /dev/null
++++ b/arch/ubicom32/include/asm/a.out.h
+@@ -0,0 +1,47 @@
++/*
++ * arch/ubicom32/include/asm/a.out.h
++ * Definitions for Ubicom32 a.out executable format.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_A_OUT_H
++#define _ASM_UBICOM32_A_OUT_H
++
++struct exec
++{
++ unsigned long a_info; /* Use macros N_MAGIC, etc for access */
++ unsigned a_text; /* length of text, in bytes */
++ unsigned a_data; /* length of data, in bytes */
++ unsigned a_bss; /* length of uninitialized data area for file, in bytes */
++ unsigned a_syms; /* length of symbol table data in file, in bytes */
++ unsigned a_entry; /* start address */
++ unsigned a_trsize; /* length of relocation info for text, in bytes */
++ unsigned a_drsize; /* length of relocation info for data, in bytes */
++};
++
++#define N_TRSIZE(a) ((a).a_trsize)
++#define N_DRSIZE(a) ((a).a_drsize)
++#define N_SYMSIZE(a) ((a).a_syms)
++
++#endif /* _ASM_UBICOM32_A_OUT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/atomic.h
+@@ -0,0 +1,352 @@
++/*
++ * arch/ubicom32/include/asm/atomic.h
++ * Atomic operations definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ATOMIC_H
++#define _ASM_UBICOM32_ATOMIC_H
++
++#include <asm/system.h>
++#include <asm/ubicom32-common.h>
++#include <asm/types.h>
++
++/*
++ * Most instructions on the Ubicom32 processor are atomic in that they
++ * execute in one clock cycle. However, Linux has several operations
++ * (e.g. compare and swap) which will require more than a single instruction
++ * to perform. To achieve this, the Ubicom32 processor uses a single
++ * global bit in a scratchpad register as a critical section lock. All
++ * atomic operations acquire this lock.
++ *
++ * NOTE: To AVOID DEADLOCK(s), the atomic lock must only be used for atomic
++ * operations or by the ldsr to avoid disabling a thread performing an atomic
++ * operation.
++ *
++ * Do not attempt to disable interrupts while holding the atomic operations
++ * lock or you will DEADLOCK the system.
++ */
++
++typedef struct {
++ volatile int counter;
++} atomic_t;
++
++#define ATOMIC_INIT(i) { (i) }
++
++/*
++ * __atomic_add()
++ * Add i to v and return the result.
++ */
++static inline void __atomic_add(int i, atomic_t *v)
++{
++ atomic_t *vt = v;
++
++ __atomic_lock_acquire();
++ vt->counter += i;
++ __atomic_lock_release();
++}
++
++/*
++ * __atomic_sub()
++ * Subtract i from v and return the result.
++ */
++static inline void __atomic_sub(int i, atomic_t *v)
++{
++ atomic_t *vt = v;
++
++ __atomic_lock_acquire();
++ vt->counter -= i;
++ __atomic_lock_release();
++}
++
++/*
++ * __atomic_add_return()
++ * Add i to v and return the result.
++ *
++ * The implementation here looks rather odd because we appear to be doing
++ * the addition twice. In fact that's exactly what we're doing but with
++ * the ubicom32 instruction set we can do the inner load and add with two
++ * instructions whereas generating both the atomic result and the "ret"
++ * result requires three instructions. The second add is generally only as
++ * costly as a move instruction and in cases where we compare the result
++ * with a constant the compiler can fold two constant values and do a
++ * single instruction, thus saving an instruction overall!
++ *
++ * At the worst we save one instruction inside the atomic lock.
++ */
++static inline int __atomic_add_return(int i, atomic_t *v)
++{
++ int ret;
++ atomic_t *vt = v;
++
++ __atomic_lock_acquire();
++ ret = vt->counter;
++ vt->counter = ret + i;
++ __atomic_lock_release();
++
++ return ret + i;
++}
++
++/*
++ * __atomic_sub_return()
++ * Subtract i from v and return the result.
++ *
++ * The implementation here looks rather odd because we appear to be doing
++ * the subtraction twice. In fact that's exactly what we're doing but with
++ * the ubicom32 instruction set we can do the inner load and sub with two
++ * instructions whereas generating both the atomic result and the "ret"
++ * result requires three instructions. The second sub is generally only as
++ * costly as a move instruction and in cases where we compare the result
++ * with a constant the compiler can fold two constant values and do a
++ * single instruction, thus saving an instruction overall!
++ *
++ * At the worst we save one instruction inside the atomic lock.
++ */
++static inline int __atomic_sub_return(int i, atomic_t *v)
++{
++ int ret;
++ atomic_t *vt = v;
++
++ __atomic_lock_acquire();
++ ret = vt->counter;
++ vt->counter = ret - i;
++ __atomic_lock_release();
++
++ return ret - i;
++}
++
++/*
++ * PUBLIC API FOR ATOMIC!
++ */
++#define atomic_add(i,v) (__atomic_add( ((int)i),(v)))
++#define atomic_sub(i,v) (__atomic_sub( ((int)i),(v)))
++#define atomic_inc(v) (__atomic_add( 1,(v)))
++#define atomic_dec(v) (__atomic_sub( 1,(v)))
++#define atomic_add_return(i,v) (__atomic_add_return( ((int)i),(v)))
++#define atomic_sub_return(i,v) (__atomic_sub_return( ((int)i),(v)))
++#define atomic_inc_return(v) (__atomic_add_return( 1,(v)))
++#define atomic_dec_return(v) (__atomic_sub_return( 1,(v)))
++#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
++#define atomic_dec_and_test(v) (atomic_dec_return(v) == 0)
++#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
++#define atomic_sub_and_test(i,v) (atomic_sub_return((i),(v)) == 0)
++
++/*
++ * atomic_read()
++ * Acquire the atomic lock and read the variable.
++ */
++static inline int atomic_read(const atomic_t *v)
++{
++ int ret;
++ const atomic_t *vt = v;
++
++ __atomic_lock_acquire();
++ ret = vt->counter;
++ __atomic_lock_release();
++
++ return ret;
++}
++
++/*
++ * atomic_set()
++ * Acquire the atomic lock and set the variable.
++ */
++static inline void atomic_set(atomic_t *v, int i)
++{
++ atomic_t *vt = v;
++
++ __atomic_lock_acquire();
++ vt->counter = i;
++ __atomic_lock_release();
++}
++
++/*
++ * atomic_cmpxchg
++ * Acquire the atomic lock and exchange if current == old.
++ */
++static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
++{
++ int prev;
++ atomic_t *vt = v;
++
++ __atomic_lock_acquire();
++ prev = vt->counter;
++ if (prev == old) {
++ vt->counter = new;
++ }
++ __atomic_lock_release();
++
++ return prev;
++}
++
++/*
++ * atomic_xchg()
++ * Acquire the atomic lock and exchange values.
++ */
++static inline int atomic_xchg(atomic_t *v, int new)
++{
++ int prev;
++ atomic_t *vt = v;
++
++ __atomic_lock_acquire();
++ prev = vt->counter;
++ vt->counter = new;
++ __atomic_lock_release();
++
++ return prev;
++}
++
++/*
++ * atomic_add_unless()
++ * Acquire the atomic lock and add a unless the value is u.
++ */
++static inline int atomic_add_unless(atomic_t *v, int a, int u)
++{
++ int prev;
++ atomic_t *vt = v;
++
++ __atomic_lock_acquire();
++ prev = vt->counter;
++ if (prev != u) {
++ vt->counter += a;
++ __atomic_lock_release();
++ return 1;
++ }
++
++ __atomic_lock_release();
++ return 0;
++}
++
++#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
++
++#include <asm-generic/atomic.h>
++
++/*
++ * The following is not a real function. The compiler should remove the function
++ * call as long as the user does not pass in a size that __xchg and __cmpxchg
++ * are not prepared for. If the user does pass in an unknown size, the user
++ * will get a link time error.
++ *
++ * The no return is to prevent a compiler error that can occur when dealing with
++ * uninitialized variables. Given that the function doesn't exist there is no
++ * net effect (and if it did it would not return).
++ */
++extern void __xchg_called_with_bad_pointer(void) __attribute__((noreturn));
++
++/*
++ * __xchg()
++ * Xchange *ptr for x atomically.
++ *
++ * Must be both locally atomic and atomic on SMP. Ubicom32 does not have an
++ * atomic exchange instruction so we use the global atomic_lock.
++ */
++static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size)
++{
++ unsigned long ret;
++
++ __atomic_lock_acquire();
++
++ switch (size) {
++ case 1:
++ ret = *(volatile unsigned char *)ptr;
++ *(volatile unsigned char *)ptr = x;
++ break;
++
++ case 2:
++ ret = *(volatile unsigned short *)ptr;
++ *(volatile unsigned short *)ptr = x;
++ break;
++
++ case 4:
++ ret = *(volatile unsigned int *)ptr;
++ *(volatile unsigned int *)ptr = x;
++ break;
++
++ default:
++ __xchg_called_with_bad_pointer();
++ break;
++ }
++ __atomic_lock_release();
++ return ret;
++}
++
++#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
++
++/*
++ * __cmpxchg()
++ * Compare and Xchange *ptr for x atomically.
++ *
++ * Must be both locally atomic and atomic on SMP. Ubicom32 does not have an
++ * atomic exchange instruction so we use the global atomic_lock.
++ */
++static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, unsigned long next, int size)
++{
++ unsigned long prev;
++
++ __atomic_lock_acquire();
++ switch (size) {
++ case 1:
++ prev = *(u8 *)ptr;
++ if (prev == old) {
++ *(u8 *)ptr = (u8)next;
++ }
++ break;
++
++ case 2:
++ prev = *(u16 *)ptr;
++ if (prev == old) {
++ *(u16 *)ptr = (u16)next;
++ }
++ break;
++
++ case 4:
++ prev = *(u32 *)ptr;
++ if (prev == old) {
++ *(u32 *)ptr = (u32)next;
++ }
++ break;
++
++ default:
++ __xchg_called_with_bad_pointer();
++ break;
++ }
++ __atomic_lock_release();
++ return prev;
++}
++
++/*
++ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
++ * them available.
++ */
++#define cmpxchg_local(ptr, o, n) \
++ ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))))
++
++#define cmpxchg(ptr, o, n) __cmpxchg((ptr), (o), (n), sizeof(*(ptr)))
++
++#define smp_mb__before_atomic_inc() asm volatile ("" : : : "memory")
++#define smp_mb__after_atomic_inc() asm volatile ("" : : : "memory")
++#define smp_mb__before_atomic_dec() asm volatile ("" : : : "memory")
++#define smp_mb__after_atomic_dec() asm volatile ("" : : : "memory")
++
++#endif /* _ASM_UBICOM32_ATOMIC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/audio_tio.h
+@@ -0,0 +1,124 @@
++/*
++ * arch/ubicom32/include/asm/audio_tio.h
++ * AudioTIO include file
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef _AUDIO_TIO_H
++#define _AUDIO_TIO_H
++
++#include <asm/devtree.h>
++#include <asm/ubi32-pcm.h>
++
++#define UBI32_AUDIO_INT_FLAG_MORE_SAMPLES 0x00000001
++#define UBI32_AUDIO_INT_FLAG_COMMAND 0x00000002
++
++/*
++ * Commands the Primary OS sends to the audio device
++ */
++enum ubi32_audio_command {
++ UBI32_AUDIO_CMD_NONE,
++ UBI32_AUDIO_CMD_START,
++ UBI32_AUDIO_CMD_STOP,
++ UBI32_AUDIO_CMD_PAUSE,
++ UBI32_AUDIO_CMD_RESUME,
++ UBI32_AUDIO_CMD_MUTE,
++ UBI32_AUDIO_CMD_UNMUTE,
++ UBI32_AUDIO_CMD_SETUP,
++ UBI32_AUDIO_CMD_ENABLE,
++ UBI32_AUDIO_CMD_DISABLE,
++};
++
++/*
++ * Flag bits passed in the registers
++ */
++#define UBI32_CMD_SETUP_FLAG_LE (1 << 0) /* Use Little Endian Mode */
++
++/*
++ * Status bits that audio device can set to indicate reason
++ * for interrupting the Primary OS
++ */
++#define UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST (1 << 0) /* Audio device needs samples in DMA0 for playback */
++#define UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST (1 << 1) /* Audio device needs samples in DMA1 for playback */
++
++struct ubi32_audio_dma {
++ /*
++ * NOTE: The active flag shall only be SET by the producer and CLEARED
++ * by the consumer, NEVER the other way around. For playback, the
++ * Primary OS sets this flag and ipAudioTIO clears it.
++ *
++ * The producer shall not modify the ptr or ctr fields when the transfer
++ * is marked as active, as these are used by the consumer to do the
++ * transfer.
++ */
++ volatile uint32_t active; /* Nonzero if data in ptr/ctr ready to be transferred */
++ //volatile u32_t active; /* Nonzero if data in ptr/ctr ready to be transferred */
++ volatile void *ptr; /* Pointer to data to be transferred */
++ volatile uint32_t ctr; /* Counter: number of data units to transfer */
++ //volatile u32_t ctr; /* Counter: number of data units to transfer */
++};
++
++#define AUDIOTIONODE_CAP_BE (1 << 0)
++#define AUDIOTIONODE_CAP_LE (1 << 1)
++
++/*
++ * Resource indices used to access IRQs via platform_get_resource
++ */
++#define AUDIOTIO_MEM_RESOURCE 0
++#define AUDIOTIO_TX_IRQ_RESOURCE 0
++#define AUDIOTIO_RX_IRQ_RESOURCE 1
++
++#define AUDIOTIONODE_VERSION 5
++struct audiotionode {
++ struct devtree_node dn;
++ uint32_t version; /* Version of this node */
++ struct audiotioregs *regs;
++};
++
++#define AUDIOTIOREGS_VERSION 3
++struct audiotioregs {
++ uint32_t version;
++ uint32_t caps; /* Capabilities of the driver */
++ u32_t *sample_rates; /* Sample Rates supported by this driver */
++ u32_t n_sample_rates; /* Number of sample rates supported by this driver */
++ u32_t channel_mask; /* The channel configs supported by this driver (bit 1 = 1 channel, etc) */
++ volatile uint32_t int_flags; /* Reason for interrupting audio device */
++ volatile enum ubi32_audio_command command; /* Command from Primary OS */
++ volatile uint32_t flags; /* Flag bits for this command */
++ volatile uint32_t channels; /* Number of channels in stream */
++ volatile uint32_t sample_rate; /* Sample rate */
++ volatile uint32_t status; /* Status bits sent from AudioTIO to Primary OS */
++ volatile void *current_read_pos; /* Position of next sample to be removed from Primary OS sample buffer */
++
++ /*
++ * These are the transfer requests. They are used in alternating
++ * order so that when ipAudioTIO is processing one request, the
++ * Primary OS can fill in the other one.
++ *
++ * NOTE: The active bit shall always be SET by the producer and
++ * CLEARED by the consumer, NEVER the other way around.
++ */
++ struct ubi32_audio_dma playback_xfer_requests[2];
++};
++
++extern struct platform_device * __init audio_tio_alloc(const char *driver_name, const char *node_name, int priv_size);
++
++#define audio_tio_priv(pdev) (((struct ubi32pcm_platform_data *)(((struct platform_device *)(pdev))->dev.platform_data))->priv_data)
++#endif
+--- /dev/null
++++ b/arch/ubicom32/include/asm/auxvec.h
+@@ -0,0 +1,32 @@
++/*
++ * arch/ubicom32/include/asm/auxvec.h
++ * Symbolic values for the entries in the auxiliary table
++ * put on the initial stack.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_AUXVEC_H
++#define _ASM_UBICOM32_AUXVEC_H
++
++#endif /* _ASM_UBICOM32_AUXVEC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bitops.h
+@@ -0,0 +1,171 @@
++/*
++ * arch/ubicom32/include/asm/bitops.h
++ * Bit manipulation definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BITOPS_H
++#define _ASM_UBICOM32_BITOPS_H
++
++/*
++ * Copyright 1992, Linus Torvalds.
++ */
++
++#include <linux/compiler.h>
++#include <asm/byteorder.h> /* swab32 */
++
++#ifdef __KERNEL__
++
++#ifndef _LINUX_BITOPS_H
++#error only <linux/bitops.h> can be included directly
++#endif
++
++#include <asm-generic/bitops/ffs.h>
++#include <asm-generic/bitops/__ffs.h>
++
++#include <asm-generic/bitops/sched.h>
++#include <asm-generic/bitops/ffz.h>
++
++#include <asm/ubicom32-common.h>
++
++static inline void set_bit(int bit, volatile unsigned long *p)
++{
++ unsigned long mask = 1UL << (bit & 31);
++
++ p += bit >> 5;
++
++ __atomic_lock_acquire();
++ *p |= mask;
++ __atomic_lock_release();
++}
++
++static inline void clear_bit(int bit, volatile unsigned long *p)
++{
++ unsigned long mask = 1UL << (bit & 31);
++
++ p += bit >> 5;
++
++ __atomic_lock_acquire();
++ *p &= ~mask;
++ __atomic_lock_release();
++}
++
++/*
++ * clear_bit() doesn't provide any barrier for the compiler.
++ */
++#define smp_mb__before_clear_bit() barrier()
++#define smp_mb__after_clear_bit() barrier()
++
++static inline void change_bit(int bit, volatile unsigned long *p)
++{
++ unsigned long mask = 1UL << (bit & 31);
++
++ p += bit >> 5;
++
++ __atomic_lock_acquire();
++ *p ^= mask;
++ __atomic_lock_release();
++}
++
++static inline int test_and_set_bit(int bit, volatile unsigned long *p)
++{
++ unsigned int res;
++ unsigned long mask = 1UL << (bit & 31);
++
++ p += bit >> 5;
++
++ __atomic_lock_acquire();
++ res = *p;
++ *p = res | mask;
++ __atomic_lock_release();
++
++ return res & mask;
++}
++
++static inline int test_and_clear_bit(int bit, volatile unsigned long *p)
++{
++ unsigned int res;
++ unsigned long mask = 1UL << (bit & 31);
++
++ p += bit >> 5;
++
++ __atomic_lock_acquire();
++ res = *p;
++ *p = res & ~mask;
++ __atomic_lock_release();
++
++ return res & mask;
++}
++
++static inline int test_and_change_bit(int bit, volatile unsigned long *p)
++{
++ unsigned int res;
++ unsigned long mask = 1UL << (bit & 31);
++
++ p += bit >> 5;
++
++ __atomic_lock_acquire();
++ res = *p;
++ *p = res ^ mask;
++ __atomic_lock_release();
++
++ return res & mask;
++}
++
++#include <asm-generic/bitops/non-atomic.h>
++
++/*
++ * This routine doesn't need to be atomic.
++ */
++static inline int __constant_test_bit(int nr, const volatile unsigned long *addr)
++{
++ return ((1UL << (nr & 31)) & (((const volatile unsigned int *) addr)[nr >> 5])) != 0;
++}
++
++static inline int __test_bit(int nr, const volatile unsigned long *addr)
++{
++ int * a = (int *) addr;
++ int mask;
++
++ a += nr >> 5;
++ mask = 1 << (nr & 0x1f);
++ return ((mask & *a) != 0);
++}
++
++#define test_bit(nr,addr) (__builtin_constant_p(nr) ? __constant_test_bit((nr),(addr)) : __test_bit((nr),(addr)))
++
++#include <asm-generic/bitops/find.h>
++#include <asm-generic/bitops/hweight.h>
++#include <asm-generic/bitops/lock.h>
++
++#include <asm-generic/bitops/ext2-non-atomic.h>
++#include <asm-generic/bitops/ext2-atomic.h>
++#include <asm-generic/bitops/minix.h>
++
++#endif /* __KERNEL__ */
++
++#include <asm-generic/bitops/fls.h>
++#include <asm-generic/bitops/fls64.h>
++
++#endif /* _ASM_UBICOM32_BITOPS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/board.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/board.h
++ * Board init and revision definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BOARD_H
++#define _ASM_UBICOM32_BOARD_H
++
++extern const char *board_get_revision(void);
++extern void __init board_init(void);
++
++#endif /* _ASM_UBICOM32_BOARD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bootargs.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/bootargs.h
++ * Kernel command line via the devtree API.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BOOTARGS_H
++#define _ASM_UBICOM32_BOOTARGS_H
++
++extern const char *bootargs_get_cmdline(void);
++extern void __init bootargs_init(void);
++
++#endif /* _ASM_UBICOM32_BOOTARGS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bootinfo.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/bootinfo.h
++ * Definitions of firmware boot parameters passed to the kernel.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_BOOTINFO_H
++#define _ASM_UBICOM32_BOOTINFO_H
++
++/* Nothing for ubicom32 */
++
++#endif /* _ASM_UBICOM32_BOOTINFO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bug.h
+@@ -0,0 +1,53 @@
++/*
++ * arch/ubicom32/include/asm/bug.h
++ * Generic bug.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BUG_H
++#define _ASM_UBICOM32_BUG_H
++
++#include <linux/kernel.h>
++#include <asm/thread.h>
++
++#if defined(CONFIG_STOP_ON_BUG)
++/*
++ * __BUG_ON()
++ * Stall all threads to enable debugging.
++ */
++static inline void __BUG_ON(unsigned long c)
++{
++ if (unlikely(c)) {
++ THREAD_STALL;
++ }
++ return;
++}
++
++#define BUG_ON(c) __BUG_ON((unsigned long)(c))
++#define HAVE_ARCH_BUG_ON
++#endif
++
++#include <asm-generic/bug.h>
++
++#endif /* _ASM_UBICOM32_BUG_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/bugs.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/bugs.h
++ * Definition of check_bugs() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1994 Linus Torvalds
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++/*
++ * This is included by init/main.c to check for architecture-dependent bugs.
++ *
++ * Needs:
++ * void check_bugs(void);
++ */
++
++#ifndef _ASM_UBICOM32_BUGS_H
++#define _ASM_UBICOM32_BUGS_H
++
++static void check_bugs(void)
++{
++}
++
++#endif /* _ASM_UBICOM32_BUGS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/byteorder.h
+@@ -0,0 +1,48 @@
++/*
++ * arch/ubicom32/include/asm/byteorder.h
++ * Byte order swapping utility routines.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_BYTEORDER_H
++#define _ASM_UBICOM32_BYTEORDER_H
++
++#include <linux/types.h>
++
++#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
++# define __BYTEORDER_HAS_U64__
++# define __SWAB_64_THRU_32__
++#endif
++
++#if defined(IP7000) || defined(IP7000_REV2)
++
++#define __arch__swab16 __builtin_ubicom32_swapb_2
++#define __arch__swab32 __builtin_ubicom32_swapb_4
++
++#endif /* IP7000 */
++
++#include <linux/byteorder/big_endian.h>
++
++#endif /* _ASM_UBICOM32_BYTEORDER_H */
++
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cachectl.h
+@@ -0,0 +1,39 @@
++/*
++ * arch/ubicom32/include/asm/cachectl.h
++ * Ubicom32 cache control definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CACHECTL_H
++#define _ASM_UBICOM32_CACHECTL_H
++
++#include <asm/ip5000.h>
++
++/*
++ * mem_cache_control()
++ * Special cache control operation
++ */
++extern void mem_cache_control(unsigned long cc, unsigned long begin_addr, unsigned long end_addr, unsigned long op);
++
++#endif /* _ASM_UBICOM32_CACHECTL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cacheflush.h
+@@ -0,0 +1,104 @@
++/*
++ * arch/ubicom32/include/asm/cacheflush.h
++ * Cache flushing definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CACHEFLUSH_H
++#define _ASM_UBICOM32_CACHEFLUSH_H
++
++/*
++ * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com>
++ */
++#include <linux/mm.h>
++#include <asm/cachectl.h>
++#include <asm/ip5000.h>
++
++#define flush_cache_all() __flush_cache_all()
++#define flush_cache_mm(mm) do { } while (0)
++#define flush_cache_dup_mm(mm) do { } while (0)
++#define flush_cache_range(vma, start, end) __flush_cache_all()
++#define flush_cache_page(vma, vmaddr) do { } while (0)
++#define flush_dcache_page(page) do { } while (0)
++#define flush_dcache_mmap_lock(mapping) do { } while (0)
++#define flush_dcache_mmap_unlock(mapping) do { } while (0)
++
++#define flush_dcache_range(start, end) \
++do { \
++ /* Flush the data cache and invalidate the I cache. */ \
++ local_irq_disable(); \
++ mem_cache_control(DCCR_BASE, start, end, CCR_CTRL_FLUSH_ADDR); \
++ mem_cache_control(ICCR_BASE, start, end, CCR_CTRL_INV_ADDR); \
++ local_irq_enable(); \
++} while (0)
++
++#define flush_icache_range(start, end) \
++do { \
++ /* Flush the data cache and invalidate the I cache. */ \
++ local_irq_disable(); \
++ mem_cache_control(DCCR_BASE, start, end, CCR_CTRL_FLUSH_ADDR); \
++ mem_cache_control(ICCR_BASE, start, end, CCR_CTRL_INV_ADDR); \
++ local_irq_enable(); \
++} while (0)
++
++#define flush_icache_page(vma,pg) do { } while (0)
++#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
++#define flush_cache_vmap(start, end) do { } while (0)
++#define flush_cache_vunmap(start, end) do { } while (0)
++
++#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
++ memcpy(dst, src, len)
++#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
++ memcpy(dst, src, len)
++
++/*
++ * Cache handling for IP5000
++ */
++extern inline void mem_cache_invalidate_all(unsigned long cc)
++{
++ asm volatile (
++ " bset "D(CCR_CTRL)"(%0), "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_RESET)" \n\t"
++ " nop \n\t"
++ " bclr "D(CCR_CTRL)"(%0), "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_RESET)" \n\t"
++ " pipe_flush 0 \n\t"
++ :
++ : "a"(cc)
++ : "cc"
++ );
++}
++
++static inline void __flush_cache_all(void)
++{
++ /*
++ * Flush Icache
++ */
++ mem_cache_invalidate_all(ICCR_BASE);
++
++ /*
++ * Flush Dcache
++ */
++ mem_cache_invalidate_all(DCCR_BASE);
++}
++
++#endif /* _ASM_UBICOM32_CACHEFLUSH_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cache.h
+@@ -0,0 +1,40 @@
++/*
++ * arch/ubicom32/include/asm/cache.h
++ * Cache line definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CACHE_H
++#define _ASM_UBICOM32_CACHE_H
++
++/*
++ * bytes per L1 cache line
++ */
++#define L1_CACHE_SHIFT 5
++#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
++
++#define __cacheline_aligned
++#define ____cacheline_aligned
++
++#endif /* _ASM_UBICOM32_CACHE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/checksum.h
+@@ -0,0 +1,149 @@
++/*
++ * arch/ubicom32/include/asm/checksum.h
++ * Checksum utilities for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CHECKSUM_H
++#define _ASM_UBICOM32_CHECKSUM_H
++
++#include <linux/in6.h>
++
++/*
++ * computes the checksum of a memory block at buff, length len,
++ * and adds in "sum" (32-bit)
++ *
++ * returns a 32-bit number suitable for feeding into itself
++ * or csum_tcpudp_magic
++ *
++ * this function must be called with even lengths, except
++ * for the last fragment, which may be odd
++ *
++ * it's best to have buff aligned on a 32-bit boundary
++ */
++__wsum csum_partial(const void *buff, int len, __wsum sum);
++
++/*
++ * the same as csum_partial, but copies from src while it
++ * checksums
++ *
++ * here even more important to align src and dst on a 32-bit (or even
++ * better 64-bit) boundary
++ */
++
++__wsum csum_partial_copy_nocheck(const void *src, void *dst,
++ int len, __wsum sum);
++
++
++/*
++ * the same as csum_partial_copy, but copies from user space.
++ *
++ * here even more important to align src and dst on a 32-bit (or even
++ * better 64-bit) boundary
++ */
++
++extern __wsum csum_partial_copy_from_user(const void __user *src,
++ void *dst, int len, __wsum sum, int *csum_err);
++
++__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
++
++/*
++ * Fold a partial checksum
++ */
++
++static inline __sum16 csum_fold(__wsum sum)
++{
++ asm volatile (
++ " lsr.4 d15, %0, #16 \n\t"
++ " bfextu %0, %0, #16 \n\t"
++ " add.4 %0, d15, %0 \n\t"
++ " lsr.4 d15, %0, #16 \n\t"
++ " bfextu %0, %0, #16 \n\t"
++ " add.4 %0, d15, %0 \n\t"
++ : "=&d" (sum)
++ : "0"(sum)
++ : "d15"
++ );
++ return (__force __sum16)~sum;
++}
++
++
++/*
++ * computes the checksum of the TCP/UDP pseudo-header
++ * returns a 16-bit checksum, already complemented
++ */
++
++static inline __wsum
++csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
++ unsigned short proto, __wsum sum)
++{
++ asm volatile (
++ " add.4 %0, %2, %0 \n\t"
++ " addc %0, %3, %0 \n\t"
++ " addc %0, %4, %0 \n\t"
++ " addc %0, %5, %0 \n\t"
++ " addc %0, #0, %0 \n\t"
++ : "=&d" (sum)
++ : "0"(sum), "r" (saddr), "r" (daddr), "r" (len), "r"(proto)
++ );
++ return sum;
++}
++
++static inline __sum16
++csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
++ unsigned short proto, __wsum sum)
++{
++ return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
++}
++
++/*
++ * this routine is used for miscellaneous IP-like checksums, mainly
++ * in icmp.c
++ */
++extern __sum16 ip_compute_csum(const void *buff, int len);
++
++#define _HAVE_ARCH_IPV6_CSUM
++
++static __inline__ __sum16
++csum_ipv6_magic(const struct in6_addr *saddr, const struct in6_addr *daddr,
++ __u32 len, unsigned short proto, __wsum sum)
++{
++ asm volatile (
++ " add.4 %0, 0(%2), %0 \n\t"
++ " addc %0, 4(%2), %0 \n\t"
++ " addc %0, 8(%2), %0 \n\t"
++ " addc %0, 12(%2), %0 \n\t"
++ " addc %0, 0(%3), %0 \n\t"
++ " addc %0, 4(%3), %0 \n\t"
++ " addc %0, 8(%3), %0 \n\t"
++ " addc %0, 12(%3), %0 \n\t"
++ " addc %0, %4, %0 \n\t"
++ " addc %0, #0, %0 \n\t"
++ : "=&d" (sum)
++ : "0" (sum), "a" (saddr), "a" (daddr), "d" (len + proto)
++ );
++ return csum_fold(sum);
++}
++
++#endif /* _ASM_UBICOM32_CHECKSUM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cpu.h
+@@ -0,0 +1,45 @@
++/*
++ * arch/ubicom32/include/asm/cpu.h
++ * CPU definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004-2005 ARM Ltd.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CPU_H
++#define _ASM_UBICOM32_CPU_H
++
++#include <linux/percpu.h>
++
++struct cpuinfo_ubicom32 {
++ unsigned long tid; /* Hardware thread number */
++
++#ifdef CONFIG_SMP
++ volatile unsigned long ipi_pending; /* Bit map of operations to execute */
++ unsigned long ipi_count; /* Number of IPI(s) taken on this cpu */
++#endif
++};
++
++DECLARE_PER_CPU(struct cpuinfo_ubicom32, cpu_data);
++
++#endif /* _ASM_UBICOM32_CPU_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/cputime.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/cputime.h
++ * Generic cputime.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CPUTIME_H
++#define _ASM_UBICOM32_CPUTIME_H
++
++#include <asm-generic/cputime.h>
++
++#endif /* _ASM_UBICOM32_CPUTIME_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/current.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/current.h
++ * Definition of get_current() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (C) Copyright 2000, Lineo, David McCullough <davidm@uclinux.org>
++ * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_CURRENT_H
++#define _ASM_UBICOM32_CURRENT_H
++
++#include <linux/thread_info.h>
++
++struct task_struct;
++
++static inline struct task_struct *get_current(void)
++{
++ return(current_thread_info()->task);
++}
++
++#define current get_current()
++
++#endif /* _ASM_UBICOM32_CURRENT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/delay.h
+@@ -0,0 +1,75 @@
++/*
++ * arch/ubicom32/include/asm/delay.h
++ * Definition of delay routines for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DELAY_H
++#define _ASM_UBICOM32_DELAY_H
++
++#include <asm/param.h>
++#include <asm/ip5000.h>
++
++static inline void __delay(unsigned long loops)
++{
++ if (loops == 0) {
++ return;
++ }
++
++ asm volatile (
++ "1: add.4 %0, #-1, %0 \n\t"
++ " jmpne.t 1b \n\t"
++ : "+d" (loops)
++ );
++}
++
++/*
++ * Ubicom32 processor uses fixed 12MHz external OSC.
++ * So we use that as reference to count 12 cycles/us
++ */
++
++extern unsigned long loops_per_jiffy;
++
++static inline void _udelay(unsigned long usecs)
++{
++#if defined(CONFIG_UBICOM32_V4) || defined(CONFIG_UBICOM32_V3)
++ asm volatile (
++ " add.4 d15, 0(%0), %1 \n\t"
++ " sub.4 #0, 0(%0), d15 \n\t"
++ " jmpmi.w.f .-4 \n\t"
++ :
++ : "a"(TIMER_BASE + TIMER_MPTVAL), "d"(usecs * (12000000/1000000))
++ : "d15"
++ );
++#else
++ BUG();
++#endif
++}
++
++/*
++ * Moved the udelay() function into library code, no longer inlined.
++ */
++extern void udelay(unsigned long usecs);
++
++#endif /* _ASM_UBICOM32_DELAY_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/device.h
+@@ -0,0 +1,35 @@
++/*
++ * arch/ubicom32/include/asm/device.h
++ * Generic device.h for Ubicom32 architecture.
++ *
++ * Used for arch specific extensions to struct device
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DEVICE_H
++#define _ASM_UBICOM32_DEVICE_H
++
++#include <asm-generic/device.h>
++
++#endif /* _ASM_UBICOM32_DEVICE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/devtree.h
+@@ -0,0 +1,52 @@
++/*
++ * arch/ubicom32/include/asm/devtree.h
++ * Device Tree Header File (Shared between ultra and the Host OS)
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_DEVTREE_H
++#define _ASM_UBICOM32_DEVTREE_H
++
++#define DEVTREE_MAX_NAME 32
++#define DEVTREE_IRQ_NONE 0xff
++#define DEVTREE_IRQ_DONTCARE 0xff
++#define DEVTREE_NODE_MAGIC 0x10203040
++
++struct devtree_node {
++ struct devtree_node *next;
++ unsigned char sendirq;
++ unsigned char recvirq;
++ char name[DEVTREE_MAX_NAME];
++ unsigned int magic;
++};
++
++extern struct devtree_node *devtree;
++extern struct devtree_node *devtree_find_by_irq(uint8_t sendirq, uint8_t recvirq);
++extern struct devtree_node *devtree_find_node(const char *str);
++extern struct devtree_node *devtree_find_next(struct devtree_node **cur);
++extern int devtree_irq(struct devtree_node *dn, unsigned char *sendirq, unsigned char *recvirq);
++extern void devtree_print(void);
++
++#endif /* _ASM_UBICOM32_DEVTREE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/div64.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/div64.h
++ * Generic div64.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DIV64_H
++#define _ASM_UBICOM32_DIV64_H
++
++#include <asm-generic/div64.h>
++
++#endif /* _ASM_UBICOM32_DIV64_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/dma.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/dma.h
++ * DMA definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DMA_H
++#define _ASM_UBICOM32_DMA_H
++
++/* Nothing so far */
++#define MAX_DMA_ADDRESS 0x00 /* This is quite suspicious */
++
++#endif /* _ASM_UBICOM32_DMA_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/dma-mapping.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/dma-mapping.h
++ * Generic dma-mapping.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_DMA_MAPPING_H
++#define _ASM_UBICOM32_DMA_MAPPING_H
++
++#include <linux/scatterlist.h>
++#include <asm-generic/dma-mapping.h>
++
++#endif /* _ASM_UBICOM32_DMA_MAPPING_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/elf.h
+@@ -0,0 +1,167 @@
++/*
++ * arch/ubicom32/include/asm/elf.h
++ * Definitions for elf executable format for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ELF_H
++#define _ASM_UBICOM32_ELF_H
++
++/*
++ * ELF register definitions..
++ */
++
++#include <asm/ptrace.h>
++#include <asm/user.h>
++
++/*
++ * Processor specific flags for the ELF header e_flags field.
++ */
++#define EF_UBICOM32_V3 0x00000001 /* -fmarch=ubicom32v3 */
++#define EF_UBICOM32_V4 0x00000002 /* -fmarch=ubicom32v4 */
++#define EF_UBICOM32_PIC 0x80000000 /* -fpic */
++#define EF_UBICOM32_FDPIC 0x40000000 /* -mfdpic */
++
++/*
++ * Ubicom32 ELF relocation types
++ */
++#define R_UBICOM32_NONE 0
++#define R_UBICOM32_16 1
++#define R_UBICOM32_32 2
++#define R_UBICOM32_LO16 3
++#define R_UBICOM32_HI16 4
++#define R_UBICOM32_21_PCREL 5
++#define R_UBICOM32_24_PCREL 6
++#define R_UBICOM32_HI24 7
++#define R_UBICOM32_LO7_S 8
++#define R_UBICOM32_LO7_2_S 9
++#define R_UBICOM32_LO7_4_S 10
++#define R_UBICOM32_LO7_D 11
++#define R_UBICOM32_LO7_2_D 12
++#define R_UBICOM32_LO7_4_D 13
++#define R_UBICOM32_32_HARVARD 14
++#define R_UBICOM32_LO7_CALLI 15
++#define R_UBICOM32_LO16_CALLI 16
++#define R_UBICOM32_GOT_HI24 17
++#define R_UBICOM32_GOT_LO7_S 18
++#define R_UBICOM32_GOT_LO7_2_S 19
++#define R_UBICOM32_GOT_LO7_4_S 20
++#define R_UBICOM32_GOT_LO7_D 21
++#define R_UBICOM32_GOT_LO7_2_D 22
++#define R_UBICOM32_GOT_LO7_4_D 23
++#define R_UBICOM32_FUNCDESC_GOT_HI24 24
++#define R_UBICOM32_FUNCDESC_GOT_LO7_S 25
++#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26
++#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27
++#define R_UBICOM32_FUNCDESC_GOT_LO7_D 28
++#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29
++#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30
++#define R_UBICOM32_GOT_LO7_CALLI 31
++#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32
++#define R_UBICOM32_FUNCDESC_VALUE 33
++#define R_UBICOM32_FUNCDESC 34
++#define R_UBICOM32_GOTOFFSET_LO 35
++#define R_UBICOM32_GOTOFFSET_HI 36
++#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37
++#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38
++#define R_UBICOM32_GNU_VTINHERIT 200
++#define R_UBICOM32_GNU_VTENTRY 201
++
++typedef unsigned long elf_greg_t;
++
++#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
++typedef elf_greg_t elf_gregset_t[ELF_NGREG];
++
++typedef struct user_ubicom32fp_struct elf_fpregset_t;
++
++/*
++ * This is used to ensure we don't load something for the wrong architecture.
++ */
++#define elf_check_arch(x) ((x)->e_machine == EM_UBICOM32)
++
++#define elf_check_fdpic(x) ((x)->e_flags & EF_UBICOM32_FDPIC)
++
++#define elf_check_const_displacement(x) ((x)->e_flags & EF_UBICOM32_PIC)
++
++/*
++ * These are used to set parameters in the core dumps.
++ */
++#define ELF_CLASS ELFCLASS32
++#define ELF_DATA ELFDATA2MSB
++#define ELF_ARCH EM_UBICOM32
++
++/* For SVR4/m68k the function pointer to be registered with `atexit' is
++ passed in %a1. Although my copy of the ABI has no such statement, it
++ is actually used on ASV. */
++#define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0
++
++#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, \
++ _dynamic_addr) \
++ do { \
++ _regs->dn[1] = _exec_map_addr; \
++ _regs->dn[2] = _interp_map_addr; \
++ _regs->dn[3] = _dynamic_addr; \
++ _regs->an[1] = 0; /* dl_fini will be set by ldso */ \
++ } while (0)
++
++#define USE_ELF_CORE_DUMP
++#define ELF_EXEC_PAGESIZE 4096
++
++#ifdef __KERNEL__
++#ifdef CONFIG_UBICOM32_V4
++#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V4)
++#elif defined CONFIG_UBICOM32_V3
++#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V3)
++#else
++#error Unknown/Unsupported ubicom32 architecture.
++#endif
++#endif
++
++/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
++ use of this is to invoke "./ld.so someprog" to test out a new version of
++ the loader. We need to make sure that it is out of the way of the program
++ that it will "exec", and that there is sufficient room for the brk. */
++
++#define ELF_ET_DYN_BASE 0xD0000000UL
++
++/*
++ * For Ubicom32, the elf_gregset_t and struct pt_regs are the same size
++ * data structure so a copy is performed instead of providing the
++ * ELF_CORE_COPY_REGS macro.
++ */
++
++/* This yields a mask that user programs can use to figure out what
++ instruction set this cpu supports. */
++
++#define ELF_HWCAP (0)
++
++/* This yields a string that ld.so will use to load implementation
++ specific libraries for optimization. This is more specific in
++ intent than poking at uname or /proc/cpuinfo. */
++
++#define ELF_PLATFORM (NULL)
++
++#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
++
++#endif /* _ASM_UBICOM32_ELF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/elf.h~
+@@ -0,0 +1,165 @@
++/*
++ * arch/ubicom32/include/asm/elf.h
++ * Definitions for elf executable format for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ELF_H
++#define _ASM_UBICOM32_ELF_H
++
++/*
++ * ELF register definitions..
++ */
++
++#include <asm/ptrace.h>
++#include <asm/user.h>
++
++/*
++ * Processor specific flags for the ELF header e_flags field.
++ */
++#define EF_UBICOM32_V3 0x00000001 /* -fmarch=ubicom32v3 */
++#define EF_UBICOM32_V4 0x00000002 /* -fmarch=ubicom32v4 */
++#define EF_UBICOM32_PIC 0x80000000 /* -fpic */
++#define EF_UBICOM32_FDPIC 0x40000000 /* -mfdpic */
++
++/*
++ * Ubicom32 ELF relocation types
++ */
++#define R_UBICOM32_NONE 0
++#define R_UBICOM32_16 1
++#define R_UBICOM32_32 2
++#define R_UBICOM32_LO16 3
++#define R_UBICOM32_HI16 4
++#define R_UBICOM32_21_PCREL 5
++#define R_UBICOM32_24_PCREL 6
++#define R_UBICOM32_HI24 7
++#define R_UBICOM32_LO7_S 8
++#define R_UBICOM32_LO7_2_S 9
++#define R_UBICOM32_LO7_4_S 10
++#define R_UBICOM32_LO7_D 11
++#define R_UBICOM32_LO7_2_D 12
++#define R_UBICOM32_LO7_4_D 13
++#define R_UBICOM32_32_HARVARD 14
++#define R_UBICOM32_LO7_CALLI 15
++#define R_UBICOM32_LO16_CALLI 16
++#define R_UBICOM32_GOT_HI24 17
++#define R_UBICOM32_GOT_LO7_S 18
++#define R_UBICOM32_GOT_LO7_2_S 19
++#define R_UBICOM32_GOT_LO7_4_S 20
++#define R_UBICOM32_GOT_LO7_D 21
++#define R_UBICOM32_GOT_LO7_2_D 22
++#define R_UBICOM32_GOT_LO7_4_D 23
++#define R_UBICOM32_FUNCDESC_GOT_HI24 24
++#define R_UBICOM32_FUNCDESC_GOT_LO7_S 25
++#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26
++#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27
++#define R_UBICOM32_FUNCDESC_GOT_LO7_D 28
++#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29
++#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30
++#define R_UBICOM32_GOT_LO7_CALLI 31
++#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32
++#define R_UBICOM32_FUNCDESC_VALUE 33
++#define R_UBICOM32_FUNCDESC 34
++#define R_UBICOM32_GOTOFFSET_LO 35
++#define R_UBICOM32_GOTOFFSET_HI 36
++#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37
++#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38
++#define R_UBICOM32_GNU_VTINHERIT 200
++#define R_UBICOM32_GNU_VTENTRY 201
++
++typedef unsigned long elf_greg_t;
++
++#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
++typedef elf_greg_t elf_gregset_t[ELF_NGREG];
++
++typedef struct user_ubicom32fp_struct elf_fpregset_t;
++
++/*
++ * This is used to ensure we don't load something for the wrong architecture.
++ */
++#define elf_check_arch(x) ((x)->e_machine == EM_UBICOM32)
++
++#define elf_check_fdpic(x) ((x)->e_flags & EF_UBICOM32_FDPIC)
++
++#define elf_check_const_displacement(x) ((x)->e_flags & EF_UBICOM32_PIC)
++
++/*
++ * These are used to set parameters in the core dumps.
++ */
++#define ELF_CLASS ELFCLASS32
++#define ELF_DATA ELFDATA2MSB
++#define ELF_ARCH EM_UBICOM32
++
++/* For SVR4/m68k the function pointer to be registered with `atexit' is
++ passed in %a1. Although my copy of the ABI has no such statement, it
++ is actually used on ASV. */
++#define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0
++
++#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, \
++ _dynamic_addr) \
++ do { \
++ _regs->dn[1] = _exec_map_addr; \
++ _regs->dn[2] = _interp_map_addr; \
++ _regs->dn[3] = _dynamic_addr; \
++ _regs->an[1] = 0; /* dl_fini will be set by ldso */ \
++ } while (0)
++
++#define USE_ELF_CORE_DUMP
++#define ELF_EXEC_PAGESIZE 4096
++
++#ifdef CONFIG_UBICOM32_V4
++#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V4)
++#elif defined CONFIG_UBICOM32_V3
++#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V3)
++#else
++#error Unknown/Unsupported ubicom32 architecture.
++#endif
++
++/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
++ use of this is to invoke "./ld.so someprog" to test out a new version of
++ the loader. We need to make sure that it is out of the way of the program
++ that it will "exec", and that there is sufficient room for the brk. */
++
++#define ELF_ET_DYN_BASE 0xD0000000UL
++
++/*
++ * For Ubicom32, the elf_gregset_t and struct pt_regs are the same size
++ * data structure so a copy is performed instead of providing the
++ * ELF_CORE_COPY_REGS macro.
++ */
++
++/* This yields a mask that user programs can use to figure out what
++ instruction set this cpu supports. */
++
++#define ELF_HWCAP (0)
++
++/* This yields a string that ld.so will use to load implementation
++ specific libraries for optimization. This is more specific in
++ intent than poking at uname or /proc/cpuinfo. */
++
++#define ELF_PLATFORM (NULL)
++
++#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
++
++#endif /* _ASM_UBICOM32_ELF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/emergency-restart.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/emergency-restart.h
++ * Generic emergency-restart.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_EMERGENCY_RESTART_H
++#define _ASM_UBICOM32_EMERGENCY_RESTART_H
++
++#include <asm-generic/emergency-restart.h>
++
++#endif /* _ASM_UBICOM32_EMERGENCY_RESTART_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/entry.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/entry.h
++ * Entry register/stack definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ENTRY_H
++#define _ASM_UBICOM32_ENTRY_H
++
++#include <asm/setup.h>
++#include <asm/page.h>
++
++#endif /* _ASM_UBICOM32_ENTRY_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/errno.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/errno.h
++ * Generic errno.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_ERRNO_H
++#define _ASM_UBICOM32_ERRNO_H
++
++#include <asm-generic/errno.h>
++
++#endif /* _ASM_UBICOM32_ERRNO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/fb.h
+@@ -0,0 +1,39 @@
++/*
++ * arch/ubicom32/include/asm/fb.h
++ * Definition of fb_is_primary_device() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_FB_H
++#define _ASM_UBICOM32_FB_H
++#include <linux/fb.h>
++
++#define fb_pgprotect(...) do {} while (0)
++
++static inline int fb_is_primary_device(struct fb_info *info)
++{
++ return 0;
++}
++
++#endif /* _ASM_UBICOM32_FB_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/fcntl.h
+@@ -0,0 +1,38 @@
++/*
++ * arch/ubicom32/include/asm/fcntl.h
++ * File control bit definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_FCNTL_H
++#define _ASM_UBICOM32_FCNTL_H
++
++#define O_DIRECTORY 040000 /* must be a directory */
++#define O_NOFOLLOW 0100000 /* don't follow links */
++#define O_DIRECT 0200000 /* direct disk access hint - currently ignored */
++#define O_LARGEFILE 0400000
++
++#include <asm-generic/fcntl.h>
++
++#endif /* _ASM_UBICOM32_FCNTL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/flat.h
+@@ -0,0 +1,73 @@
++/*
++ * arch/ubicom32/include/asm/flat.h
++ * Definitions to support flat-format executables.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_FLAT_H
++#define _ASM_UBICOM32_FLAT_H
++
++#define ARCH_FLAT_ALIGN 0x80
++#define ARCH_FLAT_ALIGN_TEXT 1
++
++#define R_UBICOM32_32 2
++#define R_UBICOM32_HI24 7
++#define R_UBICOM32_LO7_S 8
++#define R_UBICOM32_LO7_2_S 9
++#define R_UBICOM32_LO7_4_S 10
++#define R_UBICOM32_LO7_D 11
++#define R_UBICOM32_LO7_2_D 12
++#define R_UBICOM32_LO7_4_D 13
++#define R_UBICOM32_LO7_CALLI 15
++#define R_UBICOM32_LO16_CALLI 16
++
++extern void ubicom32_flat_put_addr_at_rp(unsigned long *rp, u32_t val, u32_t rval, unsigned long *p);
++extern unsigned long ubicom32_flat_get_addr_from_rp(unsigned long *rp, u32_t relval, u32_t flags, unsigned long *p);
++
++#define flat_stack_align(sp) /* nothing needed */
++#define flat_argvp_envp_on_stack() 1
++#define flat_old_ram_flag(flags) (flags)
++#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
++#define flat_get_addr_from_rp(rp, relval, flags, p) (ubicom32_flat_get_addr_from_rp(rp, relval,flags, p))
++#define flat_put_addr_at_rp(rp, val, relval) do {ubicom32_flat_put_addr_at_rp(rp, val, relval, &persistent);} while(0)
++#define flat_get_relocate_addr(rel) ((persistent) ? (persistent & 0x07ffffff) : (rel & 0x07ffffff))
++
++static inline int flat_set_persistent(unsigned int relval, unsigned long *p)
++{
++ if (*p) {
++ return 0;
++ } else {
++ if ((relval >> 27) != R_UBICOM32_32) {
++ /*
++ * Something other than UBICOM32_32. The next entry has the relocation.
++ */
++ *p = relval;
++ return 1;
++ }
++ }
++ return 0;
++}
++
++#endif /* _ASM_UBICOM32_FLAT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/fpu.h
+@@ -0,0 +1,37 @@
++/*
++ * arch/ubicom32/include/asm/fpu.h
++ * Floating point state definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_FPU_H
++#define _ASM_UBICOM32_FPU_H
++
++/*
++ * MAX floating point unit state size (FSAVE/FRESTORE)
++ */
++/* No FP unit present then... */
++#define FPSTATESIZE (2) /* dummy size */
++
++#endif /* _ASM_UBICOM32_FPU_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/futex.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/futex.h
++ * Generic futex.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_FUTEX_H
++#define _ASM_UBICOM32_FUTEX_H
++
++#include <asm-generic/futex.h>
++
++#endif /* _ASM_UBICOM32_FUTEX_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/.gitignore
+@@ -0,0 +1 @@
++/ocm_size.h
+--- /dev/null
++++ b/arch/ubicom32/include/asm/gpio.h
+@@ -0,0 +1,451 @@
++/*
++ * arch/ubicom32/include/asm/gpio.h
++ * Definitions for GPIO operations on Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_GPIO_H
++#define _ASM_UBICOM32_GPIO_H
++
++#include <linux/compiler.h>
++#include <asm/irq.h>
++
++#include <asm/ip5000.h>
++
++#define ARCH_NR_GPIOS 512
++#define MAX_UBICOM_ONCHIP_GPIO (9 * 32)
++
++/*
++ * Macros for manipulating GPIO numbers
++ */
++#define gpio_bit(gn) (1 << (gn & 0x1f))
++#define gpio_bank(gn) (gn >> 5)
++
++#define gpio_pin_index(gn) (gn & 0x1f)
++#define gpio_port_index(gn) (gn >> 5)
++
++#define GPIO_RA_0 ((32 * 0) + 0)
++#define GPIO_RA_1 ((32 * 0) + 1)
++#define GPIO_RA_2 ((32 * 0) + 2)
++#define GPIO_RA_3 ((32 * 0) + 3)
++#define GPIO_RA_4 ((32 * 0) + 4)
++#define GPIO_RA_5 ((32 * 0) + 5)
++#define GPIO_RA_6 ((32 * 0) + 6)
++#define GPIO_RA_7 ((32 * 0) + 7)
++
++#define GPIO_RB_0 ((32 * 1) + 0)
++#define GPIO_RB_1 ((32 * 1) + 1)
++#define GPIO_RB_2 ((32 * 1) + 2)
++#define GPIO_RB_3 ((32 * 1) + 3)
++#define GPIO_RB_4 ((32 * 1) + 4)
++#define GPIO_RB_5 ((32 * 1) + 5)
++#define GPIO_RB_6 ((32 * 1) + 6)
++#define GPIO_RB_7 ((32 * 1) + 7)
++#define GPIO_RB_8 ((32 * 1) + 8)
++#define GPIO_RB_9 ((32 * 1) + 9)
++#define GPIO_RB_10 ((32 * 1) + 10)
++#define GPIO_RB_11 ((32 * 1) + 11)
++#define GPIO_RB_12 ((32 * 1) + 12)
++#define GPIO_RB_13 ((32 * 1) + 13)
++#define GPIO_RB_14 ((32 * 1) + 14)
++#define GPIO_RB_15 ((32 * 1) + 15)
++#define GPIO_RB_16 ((32 * 1) + 16)
++#define GPIO_RB_17 ((32 * 1) + 17)
++#define GPIO_RB_18 ((32 * 1) + 18)
++#define GPIO_RB_19 ((32 * 1) + 19)
++
++#define GPIO_RC_0 ((32 * 2) + 0)
++#define GPIO_RC_1 ((32 * 2) + 1)
++#define GPIO_RC_2 ((32 * 2) + 2)
++#define GPIO_RC_3 ((32 * 2) + 3)
++#define GPIO_RC_4 ((32 * 2) + 4)
++#define GPIO_RC_5 ((32 * 2) + 5)
++#define GPIO_RC_6 ((32 * 2) + 6)
++#define GPIO_RC_7 ((32 * 2) + 7)
++#define GPIO_RC_8 ((32 * 2) + 8)
++#define GPIO_RC_9 ((32 * 2) + 9)
++#define GPIO_RC_10 ((32 * 2) + 10)
++#define GPIO_RC_11 ((32 * 2) + 11)
++#define GPIO_RC_12 ((32 * 2) + 12)
++#define GPIO_RC_13 ((32 * 2) + 13)
++#define GPIO_RC_14 ((32 * 2) + 14)
++#define GPIO_RC_15 ((32 * 2) + 15)
++#define GPIO_RC_16 ((32 * 2) + 16)
++#define GPIO_RC_17 ((32 * 2) + 17)
++#define GPIO_RC_18 ((32 * 2) + 18)
++#define GPIO_RC_19 ((32 * 2) + 19)
++#define GPIO_RC_20 ((32 * 2) + 20)
++#define GPIO_RC_21 ((32 * 2) + 21)
++#define GPIO_RC_22 ((32 * 2) + 22)
++#define GPIO_RC_23 ((32 * 2) + 23)
++#define GPIO_RC_24 ((32 * 2) + 24)
++#define GPIO_RC_25 ((32 * 2) + 25)
++#define GPIO_RC_26 ((32 * 2) + 26)
++#define GPIO_RC_27 ((32 * 2) + 27)
++#define GPIO_RC_28 ((32 * 2) + 28)
++#define GPIO_RC_29 ((32 * 2) + 29)
++#define GPIO_RC_30 ((32 * 2) + 30)
++#define GPIO_RC_31 ((32 * 2) + 31)
++
++#define GPIO_RD_0 ((32 * 3) + 0)
++#define GPIO_RD_1 ((32 * 3) + 1)
++#define GPIO_RD_2 ((32 * 3) + 2)
++#define GPIO_RD_3 ((32 * 3) + 3)
++#define GPIO_RD_4 ((32 * 3) + 4)
++#define GPIO_RD_5 ((32 * 3) + 5)
++#define GPIO_RD_6 ((32 * 3) + 6)
++#define GPIO_RD_7 ((32 * 3) + 7)
++#define GPIO_RD_8 ((32 * 3) + 8)
++#define GPIO_RD_9 ((32 * 3) + 9)
++#define GPIO_RD_10 ((32 * 3) + 10)
++#define GPIO_RD_11 ((32 * 3) + 11)
++
++#define GPIO_RE_0 ((32 * 4) + 0)
++#define GPIO_RE_1 ((32 * 4) + 1)
++#define GPIO_RE_2 ((32 * 4) + 2)
++#define GPIO_RE_3 ((32 * 4) + 3)
++#define GPIO_RE_4 ((32 * 4) + 4)
++#define GPIO_RE_5 ((32 * 4) + 5)
++#define GPIO_RE_6 ((32 * 4) + 6)
++#define GPIO_RE_7 ((32 * 4) + 7)
++
++#define GPIO_RF_0 ((32 * 5) + 0)
++#define GPIO_RF_1 ((32 * 5) + 1)
++#define GPIO_RF_2 ((32 * 5) + 2)
++#define GPIO_RF_3 ((32 * 5) + 3)
++#define GPIO_RF_4 ((32 * 5) + 4)
++#define GPIO_RF_5 ((32 * 5) + 5)
++#define GPIO_RF_6 ((32 * 5) + 6)
++#define GPIO_RF_7 ((32 * 5) + 7)
++#define GPIO_RF_8 ((32 * 5) + 8)
++#define GPIO_RF_9 ((32 * 5) + 9)
++#define GPIO_RF_10 ((32 * 5) + 10)
++#define GPIO_RF_11 ((32 * 5) + 11)
++#define GPIO_RF_12 ((32 * 5) + 12)
++#define GPIO_RF_13 ((32 * 5) + 13)
++#define GPIO_RF_14 ((32 * 5) + 14)
++#define GPIO_RF_15 ((32 * 5) + 15)
++
++#define GPIO_RG_0 ((32 * 6) + 0)
++#define GPIO_RG_1 ((32 * 6) + 1)
++#define GPIO_RG_2 ((32 * 6) + 2)
++#define GPIO_RG_3 ((32 * 6) + 3)
++#define GPIO_RG_4 ((32 * 6) + 4)
++#define GPIO_RG_5 ((32 * 6) + 5)
++#define GPIO_RG_6 ((32 * 6) + 6)
++#define GPIO_RG_7 ((32 * 6) + 7)
++#define GPIO_RG_8 ((32 * 6) + 8)
++#define GPIO_RG_9 ((32 * 6) + 9)
++#define GPIO_RG_10 ((32 * 6) + 10)
++#define GPIO_RG_11 ((32 * 6) + 11)
++#define GPIO_RG_12 ((32 * 6) + 12)
++#define GPIO_RG_13 ((32 * 6) + 13)
++#define GPIO_RG_14 ((32 * 6) + 14)
++#define GPIO_RG_15 ((32 * 6) + 15)
++#define GPIO_RG_16 ((32 * 6) + 16)
++#define GPIO_RG_17 ((32 * 6) + 17)
++#define GPIO_RG_18 ((32 * 6) + 18)
++#define GPIO_RG_19 ((32 * 6) + 19)
++#define GPIO_RG_20 ((32 * 6) + 20)
++#define GPIO_RG_21 ((32 * 6) + 21)
++#define GPIO_RG_22 ((32 * 6) + 22)
++#define GPIO_RG_23 ((32 * 6) + 23)
++#define GPIO_RG_24 ((32 * 6) + 24)
++#define GPIO_RG_25 ((32 * 6) + 25)
++#define GPIO_RG_26 ((32 * 6) + 26)
++#define GPIO_RG_27 ((32 * 6) + 27)
++#define GPIO_RG_28 ((32 * 6) + 28)
++#define GPIO_RG_29 ((32 * 6) + 29)
++#define GPIO_RG_30 ((32 * 6) + 30)
++#define GPIO_RG_31 ((32 * 6) + 31)
++
++#define GPIO_RH_0 ((32 * 7) + 0)
++#define GPIO_RH_1 ((32 * 7) + 1)
++#define GPIO_RH_2 ((32 * 7) + 2)
++#define GPIO_RH_3 ((32 * 7) + 3)
++#define GPIO_RH_4 ((32 * 7) + 4)
++#define GPIO_RH_5 ((32 * 7) + 5)
++#define GPIO_RH_6 ((32 * 7) + 6)
++#define GPIO_RH_7 ((32 * 7) + 7)
++#define GPIO_RH_8 ((32 * 7) + 8)
++#define GPIO_RH_9 ((32 * 7) + 9)
++
++#define GPIO_RI_0 ((32 * 8) + 0)
++#define GPIO_RI_1 ((32 * 8) + 1)
++#define GPIO_RI_2 ((32 * 8) + 2)
++#define GPIO_RI_3 ((32 * 8) + 3)
++#define GPIO_RI_4 ((32 * 8) + 4)
++#define GPIO_RI_5 ((32 * 8) + 5)
++#define GPIO_RI_6 ((32 * 8) + 6)
++#define GPIO_RI_7 ((32 * 8) + 7)
++#define GPIO_RI_8 ((32 * 8) + 8)
++#define GPIO_RI_9 ((32 * 8) + 9)
++#define GPIO_RI_10 ((32 * 8) + 10)
++#define GPIO_RI_11 ((32 * 8) + 11)
++#define GPIO_RI_12 ((32 * 8) + 12)
++#define GPIO_RI_13 ((32 * 8) + 13)
++
++/*
++ * The following section defines extra GPIO available to some boards.
++ * These GPIO are generally external to the processor (i.e. SPI/I2C
++ * expander chips).
++ *
++ * Note that these defines show all possible GPIO available, however,
++ * depending on the actual board configuration, some GPIO are not
++ * available for use.
++ */
++#ifdef CONFIG_IP7500MEDIA
++/*
++ * U15
++ */
++#define IP7500MEDIA_U15_BASE (32 * 10)
++#define IP7500MEDIA_IO0 (IP7500MEDIA_U15_BASE + 0)
++#define IP7500MEDIA_IO1 (IP7500MEDIA_U15_BASE + 1)
++#define IP7500MEDIA_IO2 (IP7500MEDIA_U15_BASE + 2)
++#define IP7500MEDIA_IO3 (IP7500MEDIA_U15_BASE + 3)
++#define IP7500MEDIA_IO4 (IP7500MEDIA_U15_BASE + 4)
++#define IP7500MEDIA_IO5 (IP7500MEDIA_U15_BASE + 5)
++#define IP7500MEDIA_IO6 (IP7500MEDIA_U15_BASE + 6)
++#define IP7500MEDIA_IO7 (IP7500MEDIA_U15_BASE + 7)
++
++/*
++ * U16
++ */
++#define IP7500MEDIA_U16_BASE (32 * 11)
++#define IP7500MEDIA_IO8 (IP7500MEDIA_U16_BASE + 0)
++#define IP7500MEDIA_IO9 (IP7500MEDIA_U16_BASE + 1)
++#define IP7500MEDIA_IO10 (IP7500MEDIA_U16_BASE + 2)
++#define IP7500MEDIA_IO11 (IP7500MEDIA_U16_BASE + 3)
++#define IP7500MEDIA_IO12 (IP7500MEDIA_U16_BASE + 4)
++#define IP7500MEDIA_IO13 (IP7500MEDIA_U16_BASE + 5)
++#define IP7500MEDIA_IO14 (IP7500MEDIA_U16_BASE + 6)
++#define IP7500MEDIA_IO15 (IP7500MEDIA_U16_BASE + 7)
++
++/*
++ * U17
++ */
++#define IP7500MEDIA_U17_BASE (32 * 12)
++#define IP7500MEDIA_IO16 (IP7500MEDIA_U17_BASE + 0)
++#define IP7500MEDIA_IO17 (IP7500MEDIA_U17_BASE + 1)
++#define IP7500MEDIA_IO18 (IP7500MEDIA_U17_BASE + 2)
++#define IP7500MEDIA_IO19 (IP7500MEDIA_U17_BASE + 3)
++#define IP7500MEDIA_IO20 (IP7500MEDIA_U17_BASE + 4)
++#define IP7500MEDIA_IO21 (IP7500MEDIA_U17_BASE + 5)
++#define IP7500MEDIA_IO22 (IP7500MEDIA_U17_BASE + 6)
++#define IP7500MEDIA_IO23 (IP7500MEDIA_U17_BASE + 7)
++
++/*
++ * U18
++ */
++#define IP7500MEDIA_U18_BASE (32 * 13)
++#define IP7500MEDIA_IO24 (IP7500MEDIA_U18_BASE + 0)
++#define IP7500MEDIA_IO25 (IP7500MEDIA_U18_BASE + 1)
++#define IP7500MEDIA_IO26 (IP7500MEDIA_U18_BASE + 2)
++#define IP7500MEDIA_IO27 (IP7500MEDIA_U18_BASE + 3)
++#define IP7500MEDIA_IO28 (IP7500MEDIA_U18_BASE + 4)
++#define IP7500MEDIA_IO29 (IP7500MEDIA_U18_BASE + 5)
++#define IP7500MEDIA_IO30 (IP7500MEDIA_U18_BASE + 6)
++#define IP7500MEDIA_IO31 (IP7500MEDIA_U18_BASE + 7)
++#endif
++
++#ifdef CONFIG_IP7145DPF
++/*
++ * U48
++ */
++#define IP7145DPF_U48_BASE (32 * 10)
++#define IP7145DPF_IO0 (IP7145DPF_U48_BASE + 0)
++#define IP7145DPF_IO1 (IP7145DPF_U48_BASE + 1)
++#define IP7145DPF_IO2 (IP7145DPF_U48_BASE + 2)
++#define IP7145DPF_IO3 (IP7145DPF_U48_BASE + 3)
++#define IP7145DPF_IO4 (IP7145DPF_U48_BASE + 4)
++#define IP7145DPF_IO5 (IP7145DPF_U48_BASE + 5)
++#define IP7145DPF_IO6 (IP7145DPF_U48_BASE + 6)
++#define IP7145DPF_IO7 (IP7145DPF_U48_BASE + 7)
++
++/*
++ * U72
++ */
++#define IP7145DPF_U72_BASE (32 * 11)
++#define IP7145DPF_IOB0 (IP7145DPF_U72_BASE + 0)
++#define IP7145DPF_IOB1 (IP7145DPF_U72_BASE + 1)
++#define IP7145DPF_IOB2 (IP7145DPF_U72_BASE + 2)
++#define IP7145DPF_IOB3 (IP7145DPF_U72_BASE + 3)
++#define IP7145DPF_IOB4 (IP7145DPF_U72_BASE + 4)
++#define IP7145DPF_IOB5 (IP7145DPF_U72_BASE + 5)
++#define IP7145DPF_IOB6 (IP7145DPF_U72_BASE + 6)
++#define IP7145DPF_IOB7 (IP7145DPF_U72_BASE + 7)
++#endif
++
++#include <asm-generic/gpio.h>
++
++/*
++ * The following macros bypass gpiolib to generate direct references
++ * to the port registers. These assume, minimally, that either
++ * gpio_direction_input() or gpio_direction_output() have already been
++ * called to setup the pin direction and to enable the pin function to
++ * be gpio. These macros generate the hardware port address based on
++ * the assumption that all ports are 32 bits wide (even though we know
++ * they are not). This is so we can efficiently turn pin numbers into
++ * port addresses without a lookup.
++ *
++ * These operations must be done in one instruction to prevent clobbering
++ * other thread's accesses to the same port.
++ */
++#define UBICOM32_GPIO_ENABLE(pin) \
++ do { \
++ asm volatile ("or.4 (%[port]), (%[port]), %[mask]\n\t" \
++ : \
++ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_mask), \
++ [mask] "d" (gpio_bit(pin)) \
++ : "cc", "memory" \
++ ); \
++ } while (0);
++
++#define UBICOM32_GPIO_DISABLE(pin) \
++ do { \
++ asm volatile ("and.4 (%[port]), (%[port]), %[mask]\n\t" \
++ : \
++ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_mask), \
++ [mask] "d" (~gpio_bit(pin)) \
++ : "cc", "memory" \
++ ); \
++ } while (0);
++
++#define UBICOM32_GPIO_SET_PIN_INPUT(pin) \
++ do { \
++ asm volatile ("and.4 (%[port]), (%[port]), %[mask]\n\t" \
++ : \
++ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_ctl), \
++ [mask] "d" (~gpio_bit(pin)) \
++ : "cc", "memory" \
++ ); \
++ } while (0);
++
++#define UBICOM32_GPIO_SET_PIN_OUTPUT(pin) \
++ do { \
++ asm volatile ("or.4 (%[port]), (%[port]), %[mask]\n\t" \
++ : \
++ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_ctl), \
++ [mask] "d" (gpio_bit(pin)) \
++ : "cc", "memory" \
++ ); \
++ } while (0);
++
++#define UBICOM32_GPIO_SET_PIN_TOGGLE(pin) \
++ do { \
++ asm volatile ("xor.4 (%[port]), (%[port]), %[mask]\n\t" \
++ : \
++ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_out), \
++ [mask] "d" (gpio_bit(pin)) \
++ : "cc", "memory" \
++ ); \
++ } while (0);
++
++#define UBICOM32_GPIO_SET_PIN_HIGH(pin) \
++ do { \
++ asm volatile ("or.4 (%[port]), (%[port]), %[mask]\n\t" \
++ : \
++ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_out), \
++ [mask] "d" (gpio_bit(pin)) \
++ : "cc", "memory" \
++ ); \
++ } while (0);
++
++#define UBICOM32_GPIO_SET_PIN_LOW(pin) \
++ do { \
++ asm volatile ("and.4 (%[port]), (%[port]), %[mask]\n\t" \
++ : \
++ : [port] "a" (&UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_out), \
++ [mask] "d" (~gpio_bit(pin)) \
++ : "cc", "memory" \
++ ); \
++ } while (0);
++
++#define UBICOM32_GPIO_SET_PIN(pin, val) \
++ if ( val ) { \
++ UBICOM32_GPIO_SET_PIN_HIGH(pin); \
++ } else { \
++ UBICOM32_GPIO_SET_PIN_LOW(pin); \
++ }
++
++#define UBICOM32_GPIO_GET_PIN(pin) \
++ (0 != (UBICOM32_IO_PORT(IO_BASE + (gpio_bank(pin) << 12))->gpio_in \
++ & gpio_bit(pin)))
++
++
++static inline int gpio_get_value(unsigned gpio)
++{
++ if (gpio <= MAX_UBICOM_ONCHIP_GPIO)
++ return UBICOM32_GPIO_GET_PIN(gpio);
++ else
++ return __gpio_get_value(gpio);
++}
++
++static inline void gpio_set_value(unsigned gpio, int value)
++{
++ if (gpio <= MAX_UBICOM_ONCHIP_GPIO)
++ {
++ UBICOM32_GPIO_SET_PIN(gpio, value);
++ }
++ else
++ {
++ __gpio_set_value(gpio, value);
++ }
++}
++
++static inline int gpio_cansleep(unsigned gpio)
++{
++ return __gpio_cansleep(gpio);
++}
++
++static inline int gpio_to_irq(unsigned gpio)
++{
++#if defined(IP5000) || defined(IP5000_REV2)
++ if ((gpio >= GPIO_RA_4) && (gpio <= GPIO_RA_6))
++ return 25;
++ else
++ return -ENXIO;
++
++#elif defined(IP7000) || defined(IP7000_REV2)
++ if ((gpio >= GPIO_RA_4) && (gpio <= GPIO_RA_6))
++ return 44 + (gpio - GPIO_RA_4);
++ else
++ return -ENXIO;
++
++#else
++ return -ENXIO;
++
++#endif
++}
++
++static inline int irq_to_gpio(unsigned gpio)
++{
++ return -ENXIO;
++}
++
++extern struct ubicom32_io_port *ubi_gpio_get_port(unsigned gpio);
++
++extern int __init ubi_gpio_init(void);
++
++#endif /* _ASM_UBICOM32_GPIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/hardirq.h
+@@ -0,0 +1,55 @@
++/*
++ * arch/ubicom32/include/asm/hardirq.h
++ * Definition of ack_bad_irq() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1997, 98, 99, 2000, 01, 05 Ralf Baechle (ralf@linux-mips.org)
++ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
++ * Copyright (C) 2001 MIPS Technologies, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_HARDIRQ_H
++#define _ASM_UBICOM32_HARDIRQ_H
++
++#include <linux/threads.h>
++#include <linux/irq.h>
++
++/*
++ * The hardirq mask has to be large enough to have space
++ * for potentially all IRQ sources in the system nesting
++ * on a single CPU. For Ubicom32, we have 64 IRQ sources.
++ */
++#define HARDIRQ_BITS 6
++#if (1 << HARDIRQ_BITS) < NR_IRQS
++# error HARDIRQ_BITS is too low!
++#endif
++
++typedef struct {
++ unsigned int __softirq_pending;
++} ____cacheline_aligned irq_cpustat_t;
++
++#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
++
++extern void ack_bad_irq(unsigned int irq);
++
++#endif /* _ASM_UBICOM32_HARDIRQ_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/hw_irq.h
+@@ -0,0 +1,31 @@
++/*
++ * arch/ubicom32/include/asm/hw_irq.h
++ * Ubicom32 architecture APIC support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_HW_IRQ_H
++#define _ASM_UBICOM32_HW_IRQ_H
++
++#endif /* _ASM_UBICOM32_HW_IRQ_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ioctl.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/ioctl.h
++ * Generic ioctl.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IOCTL_H
++#define _ASM_UBICOM32_IOCTL_H
++
++#include <asm-generic/ioctl.h>
++
++#endif /* _ASM_UBICOM32_IOCTL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ioctls.h
+@@ -0,0 +1,111 @@
++/*
++ * arch/ubicom32/include/asm/ioctls.h
++ * Definitions of ioctls for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IOCTLS_H
++#define _ASM_UBICOM32_IOCTLS_H
++
++#include <asm/ioctl.h>
++
++/* 0x54 is just a magic number to make these relatively unique ('T') */
++
++#define TCGETS 0x5401
++#define TCSETS 0x5402
++#define TCSETSW 0x5403
++#define TCSETSF 0x5404
++#define TCGETA 0x5405
++#define TCSETA 0x5406
++#define TCSETAW 0x5407
++#define TCSETAF 0x5408
++#define TCSBRK 0x5409
++#define TCXONC 0x540A
++#define TCFLSH 0x540B
++#define TIOCEXCL 0x540C
++#define TIOCNXCL 0x540D
++#define TIOCSCTTY 0x540E
++#define TIOCGPGRP 0x540F
++#define TIOCSPGRP 0x5410
++#define TIOCOUTQ 0x5411
++#define TIOCSTI 0x5412
++#define TIOCGWINSZ 0x5413
++#define TIOCSWINSZ 0x5414
++#define TIOCMGET 0x5415
++#define TIOCMBIS 0x5416
++#define TIOCMBIC 0x5417
++#define TIOCMSET 0x5418
++#define TIOCGSOFTCAR 0x5419
++#define TIOCSSOFTCAR 0x541A
++#define FIONREAD 0x541B
++#define TIOCINQ FIONREAD
++#define TIOCLINUX 0x541C
++#define TIOCCONS 0x541D
++#define TIOCGSERIAL 0x541E
++#define TIOCSSERIAL 0x541F
++#define TIOCPKT 0x5420
++#define FIONBIO 0x5421
++#define TIOCNOTTY 0x5422
++#define TIOCSETD 0x5423
++#define TIOCGETD 0x5424
++#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */
++#define TIOCSBRK 0x5427 /* BSD compatibility */
++#define TIOCCBRK 0x5428 /* BSD compatibility */
++#define TIOCGSID 0x5429 /* Return the session ID of FD */
++#define TCGETS2 _IOR('T',0x2A, struct termios2)
++#define TCSETS2 _IOW('T',0x2B, struct termios2)
++#define TCSETSW2 _IOW('T',0x2C, struct termios2)
++#define TCSETSF2 _IOW('T',0x2D, struct termios2)
++#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
++#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
++
++#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
++#define FIOCLEX 0x5451
++#define FIOASYNC 0x5452
++#define TIOCSERCONFIG 0x5453
++#define TIOCSERGWILD 0x5454
++#define TIOCSERSWILD 0x5455
++#define TIOCGLCKTRMIOS 0x5456
++#define TIOCSLCKTRMIOS 0x5457
++#define TIOCSERGSTRUCT 0x5458 /* For debugging only */
++#define TIOCSERGETLSR 0x5459 /* Get line status register */
++#define TIOCSERGETMULTI 0x545A /* Get multiport config */
++#define TIOCSERSETMULTI 0x545B /* Set multiport config */
++
++#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
++#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
++#define FIOQSIZE 0x545E
++
++/* Used for packet mode */
++#define TIOCPKT_DATA 0
++#define TIOCPKT_FLUSHREAD 1
++#define TIOCPKT_FLUSHWRITE 2
++#define TIOCPKT_STOP 4
++#define TIOCPKT_START 8
++#define TIOCPKT_NOSTOP 16
++#define TIOCPKT_DOSTOP 32
++
++#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
++
++#endif /* _ASM_UBICOM32_IOCTLS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/io.h
+@@ -0,0 +1,313 @@
++/*
++ * arch/ubicom32/include/asm/io.h
++ * I/O memory accessor functions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IO_H
++#define _ASM_UBICOM32_IO_H
++
++#ifdef __KERNEL__
++#include <linux/string.h>
++#include <linux/compiler.h>
++
++static inline unsigned short _swapw(volatile unsigned short v)
++{
++ return ((v << 8) | (v >> 8));
++}
++
++static inline unsigned int _swapl(volatile unsigned long v)
++{
++ return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24));
++}
++
++#ifndef CONFIG_PCI
++#define readb(addr) \
++ ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
++#define readw(addr) \
++ ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
++#define readl(addr) \
++ ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
++
++#define writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b))
++#define writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b))
++#define writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b))
++#else /*CONFIG_PCI */
++
++#define PCI_CPU_REG_BASE (0x00000000UL) /* taking lower 2GB space */
++#define PCI_DEV_REG_BASE (0x80000000UL)
++
++#if PCI_CPU_REG_BASE > PCI_DEV_REG_BASE
++#define IS_PCI_ADDRESS(x) (((unsigned int)(x)&(PCI_CPU_REG_BASE)) == 0)
++#else
++#define IS_PCI_ADDRESS(x) ((unsigned int)(x)&(PCI_DEV_REG_BASE))
++#endif
++
++extern unsigned int ubi32_pci_read_u32(const volatile void __iomem *addr);
++extern unsigned short ubi32_pci_read_u16(const volatile void __iomem *addr);
++extern unsigned char ubi32_pci_read_u8(const volatile void __iomem *addr);
++extern void ubi32_pci_write_u32(unsigned int val, const volatile void __iomem *addr);
++extern void ubi32_pci_write_u16(unsigned short val, const volatile void __iomem *addr);
++extern void ubi32_pci_write_u8(unsigned char val, const volatile void __iomem *addr);
++
++static inline unsigned char readb(const volatile void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ return ubi32_pci_read_u8(addr);
++ else
++ return (unsigned char)(*(volatile unsigned char *)addr);
++}
++static inline unsigned short readw(const volatile void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ return ubi32_pci_read_u16(addr);
++ else
++ return (unsigned short)(*(volatile unsigned short *)addr);
++}
++
++static inline unsigned int readl(const volatile void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ return ubi32_pci_read_u32(addr);
++ else
++ return (unsigned int)(*(volatile unsigned int *)addr);
++}
++
++static inline void writel(unsigned int val, volatile void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ ubi32_pci_write_u32(val, addr);
++ else
++ *(volatile unsigned int *)addr = val;
++}
++
++static inline void writew(unsigned short val, volatile void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ ubi32_pci_write_u16(val, addr);
++ else
++ *(volatile unsigned short *)addr = val;
++}
++
++static inline void writeb(unsigned char val, volatile void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ ubi32_pci_write_u8(val, addr);
++ else
++ *(volatile unsigned char *)addr = val;
++}
++#endif
++
++#define readb_relaxed(addr) readb(addr)
++#define readw_relaxed(addr) readw(addr)
++#define readl_relaxed(addr) readl(addr)
++
++
++#define __raw_readb readb
++#define __raw_readw readw
++#define __raw_readl readl
++#define __raw_writeb writeb
++#define __raw_writew writew
++#define __raw_writel writel
++
++static inline void io_outsb(unsigned int addr, const void *buf, int len)
++{
++ volatile unsigned char *ap = (volatile unsigned char *) addr;
++ unsigned char *bp = (unsigned char *) buf;
++ while (len--)
++ *ap = *bp++;
++}
++
++static inline void io_outsw(unsigned int addr, const void *buf, int len)
++{
++ volatile unsigned short *ap = (volatile unsigned short *) addr;
++ unsigned short *bp = (unsigned short *) buf;
++ while (len--)
++ *ap = _swapw(*bp++);
++}
++
++static inline void io_outsl(unsigned int addr, const void *buf, int len)
++{
++ volatile unsigned int *ap = (volatile unsigned int *) addr;
++ unsigned int *bp = (unsigned int *) buf;
++ while (len--)
++ *ap = _swapl(*bp++);
++}
++
++static inline void io_insb(unsigned int addr, void *buf, int len)
++{
++ volatile unsigned char *ap = (volatile unsigned char *) addr;
++ unsigned char *bp = (unsigned char *) buf;
++ while (len--)
++ *bp++ = *ap;
++}
++
++static inline void io_insw(unsigned int addr, void *buf, int len)
++{
++ volatile unsigned short *ap = (volatile unsigned short *) addr;
++ unsigned short *bp = (unsigned short *) buf;
++ while (len--)
++ *bp++ = _swapw(*ap);
++}
++
++static inline void io_insl(unsigned int addr, void *buf, int len)
++{
++ volatile unsigned int *ap = (volatile unsigned int *) addr;
++ unsigned int *bp = (unsigned int *) buf;
++ while (len--)
++ *bp++ = _swapl(*ap);
++}
++
++#define mmiowb()
++
++/*
++ * make the short names macros so specific devices
++ * can override them as required
++ */
++#ifndef CONFIG_PCI
++#define memset_io(a,b,c) memset((void *)(a),(b),(c))
++#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
++#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
++#else
++extern void memcpy_fromio(void *to, const volatile void __iomem *from, unsigned len);
++extern void memcpy_toio(volatile void __iomem *to, const void *from, unsigned len);
++extern void memset_io(volatile void __iomem *addr, int val, size_t count);
++#endif
++
++#define inb(addr) readb(addr)
++#define inw(addr) readw(addr)
++#define inl(addr) readl(addr)
++#define outb(x,addr) ((void) writeb(x,addr))
++#define outw(x,addr) ((void) writew(x,addr))
++#define outl(x,addr) ((void) writel(x,addr))
++
++#define inb_p(addr) inb(addr)
++#define inw_p(addr) inw(addr)
++#define inl_p(addr) inl(addr)
++#define outb_p(x,addr) outb(x,addr)
++#define outw_p(x,addr) outw(x,addr)
++#define outl_p(x,addr) outl(x,addr)
++
++#define outsb(a,b,l) io_outsb(a,b,l)
++#define outsw(a,b,l) io_outsw(a,b,l)
++#define outsl(a,b,l) io_outsl(a,b,l)
++
++#define insb(a,b,l) io_insb(a,b,l)
++#define insw(a,b,l) io_insw(a,b,l)
++#define insl(a,b,l) io_insl(a,b,l)
++
++#ifndef CONFIG_PCI
++#define ioread8_rep(a,d,c) insb(a,d,c)
++#define ioread16_rep(a,d,c) insw(a,d,c)
++#define ioread32_rep(a,d,c) insl(a,d,c)
++#define iowrite8_rep(a,s,c) outsb(a,s,c)
++#define iowrite16_rep(a,s,c) outsw(a,s,c)
++#define iowrite32_rep(a,s,c) outsl(a,s,c)
++#else
++extern void ioread8_rep(void __iomem *port, void *buf, unsigned long count);
++extern void ioread16_rep(void __iomem *port, void *buf, unsigned long count);
++extern void ioread32_rep(void __iomem *port, void *buf, unsigned long count);
++extern void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count);
++extern void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count);
++extern void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count);
++#endif
++
++
++#ifndef CONFIG_PCI
++#define ioread8(X) readb(X)
++#define ioread16(X) readw(X)
++#define ioread32(X) readl(X)
++#define iowrite8(val,X) writeb(val,X)
++#define iowrite16(val,X) writew(val,X)
++#define iowrite32(val,X) writel(val,X)
++#else /*CONFIG_PCI */
++extern unsigned char ioread8(void __iomem *addr);
++extern unsigned short ioread16(void __iomem *addr);
++extern unsigned int ioread32(void __iomem *addr);
++extern void iowrite8(unsigned char val, void __iomem *addr);
++extern void iowrite16(unsigned short val, void __iomem *addr);
++extern void iowrite32(unsigned int val, void __iomem *addr);
++#endif /* CONFIG_PCI */
++
++#define IO_SPACE_LIMIT 0xffff
++
++/* Values for nocacheflag and cmode */
++#define IOMAP_FULL_CACHING 0
++#define IOMAP_NOCACHE_SER 1
++#define IOMAP_NOCACHE_NONSER 2
++#define IOMAP_WRITETHROUGH 3
++
++extern void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
++extern void __iounmap(void *addr, unsigned long size);
++
++static inline void *ioremap(unsigned long physaddr, unsigned long size)
++{
++ return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
++}
++static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
++{
++ return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
++}
++static inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size)
++{
++ return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
++}
++static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
++{
++ return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
++}
++
++extern void iounmap(void *addr);
++
++#define ioport_map(port, nr) ((void __iomem*)(port))
++#define ioport_unmap(addr)
++
++
++/* Pages to physical address... */
++#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT)
++#define page_to_bus(page) ((page - mem_map) << PAGE_SHIFT)
++
++/*
++ * Macros used for converting between virtual and physical mappings.
++ */
++#define phys_to_virt(vaddr) ((void *) (vaddr))
++#define virt_to_phys(vaddr) ((unsigned long) (vaddr))
++
++#define virt_to_bus virt_to_phys
++#define bus_to_virt phys_to_virt
++
++/*
++ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
++ * access
++ */
++#define xlate_dev_mem_ptr(p) __va(p)
++
++/*
++ * Convert a virtual cached pointer to an uncached pointer
++ */
++#define xlate_dev_kmem_ptr(p) p
++
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_IO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ip5000-asm.h
+@@ -0,0 +1,156 @@
++/*
++ * arch/ubicom32/include/asm/ip5000-asm.h
++ * Instruction macros for the IP5000.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_IP5000_ASM_H
++#define _ASM_UBICOM32_IP5000_ASM_H
++
++#if !defined(__LINKER__)
++
++#if defined(__ASSEMBLY__)
++.macro cycles quant
++.if (\quant) == 1
++ nop
++.else
++.if (((\quant) + 3) / 8) > 0
++.rept (((\quant) + 3) / 8)
++ jmpt.f .+4
++.endr
++.endif
++.if ((((\quant) + 3) % 8) / 4) > 0
++ jmpt.t .+4
++.endif
++.endif
++.endm
++#else
++/*
++ * Same macro as above just in C inline asm
++ */
++asm (" \n\
++.macro cycles quant \n\
++.if (\\quant) == 1 \n\
++ nop \n\
++.else \n\
++.if (((\\quant) + 3) / 8) > 0 \n\
++.rept (((\\quant) + 3) / 8) \n\
++ jmpt.f .+4 \n\
++.endr \n\
++.endif \n\
++.if ((((\\quant) + 3) % 8) / 4) > 0 \n\
++ jmpt.t .+4 \n\
++.endif \n\
++.endif \n\
++.endm \n\
++");
++#endif
++
++
++#if defined(__ASSEMBLY__)
++.macro pipe_flush cyc
++ cycles 11 - (\cyc)
++.endm
++#else
++/*
++ * Same macro as above just in C inline asm
++ */
++asm (" \n\
++.macro pipe_flush cyc \n\
++ cycles 11 - (\\cyc) \n\
++.endm \n\
++");
++
++#endif
++
++#if defined(__ASSEMBLY__)
++.macro setcsr_flush cyc
++ cycles 5 - (\cyc)
++.endm
++#else
++/*
++ * Same macro as above just in C inline asm
++ */
++asm (" \n\
++.macro setcsr_flush cyc \n\
++ cycles 5 - (\\cyc) \n\
++.endm \n\
++");
++#endif
++
++/*
++ * Macros for prefetch (using miss-aligned memory write)
++ */
++#if defined(__ASSEMBLY__)
++
++.macro pre_fetch_macro thread_num, Ascratch, Aaddress length
++ bclr MT_TRAP_EN, MT_TRAP_EN, #(\thread_num)
++ bset \Ascratch, \Aaddress, #0 ; force a miss-aligned address
++ jmpt.t .+4 ; delay for both address setup and trap disable
++ move.4 (\Ascratch), #0
++ .if (\length > 32)
++ move.4 32(\Ascratch), #0
++ .endif
++ .if (\length > 64)
++ move.4 64(\Ascratch), #0
++ .endif
++ .if (\length > 96)
++ move.4 96(\Ascratch), #0
++ .endif
++ .if (\length > 128)
++ invalid_instruction ; maximum pre-fetch size is 4 cache lines
++ .endif
++ bset MT_TRAP_EN, MT_TRAP_EN, #(\thread_num)
++.endm
++
++#else
++/*
++ * Same macro as above just in C inline asm
++ */
++asm (" \n\
++.macro pre_fetch_macro thread_num, Ascratch, Aaddress length \n\
++ bclr MT_TRAP_EN, MT_TRAP_EN, #(\thread_num) \n\
++ bset \\Ascratch, \\Aaddress, #0 ; force a miss-aligned address \n\
++ jmpt.t .+4 ; delay for both address setup and trap disable \n\
++ move.4 (\\Ascratch), #0 \n\
++ .if (\\length > 32) \n\
++ move.4 32(\\Ascratch), #0 \n\
++ .endif \n\
++ .if (\\length > 64) \n\
++ move.4 64(\\Ascratch), #0 \n\
++ .endif \n\
++ .if (\\length > 96) \n\
++ move.4 96(\\Ascratch), #0 \n\
++ .endif \n\
++ .if (\\length > 128) \n\
++ invalid_instruction ; maximum pre-fetch size is 4 cache lines \n\
++ .endif \n\
++ bset MT_TRAP_EN, MT_TRAP_EN, #(\\thread_num) \n\
++.endm \n\
++");
++#endif
++
++#endif /* !defined(__LINKER__) */
++#endif /* defined _ASM_UBICOM32_IP5000_ASM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ip5000.h
+@@ -0,0 +1,860 @@
++/*
++ * arch/ubicom32/include/asm/ip5000.h
++ * Specific details for the Ubicom IP5000 processor.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_IP5000_H
++#define _ASM_UBICOM32_IP5000_H
++
++/*
++ * Inline assembly define
++ */
++#define S(arg) #arg
++#define D(arg) S(arg)
++
++/*
++ * Assembler include file
++ */
++#include <asm/ip5000-asm.h>
++
++/*
++ * Timing
++ */
++#define JMPT_PENALTY 3
++#define JMPF_PENALTY 7
++#define RET_PENALTY 7
++
++/*
++ * Threads
++ */
++#if defined(IP5000) || defined(IP5000_REV2)
++#define THREAD_COUNT 10
++#elif defined(IP7000) || defined(IP7000_REV2)
++#define THREAD_COUNT 12
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++/*
++ * Arch
++ */
++#if defined(IP5000) || defined(IP5000_REV2)
++#define UBICOM32_ARCH_VERSION 3
++#elif defined(IP7000) || defined(IP7000_REV2)
++#define UBICOM32_ARCH_VERSION 4
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++/*
++ * Memory Size
++ */
++#define OCM_SECTOR_SIZE 0x00008000 /* 32K */
++
++#if defined(IP5000) || defined(IP5000_REV2)
++#define OCMSIZE 0x00030000 /* 192K on-chip RAM for both program and data */
++#elif defined(IP7000) || defined(IP7000_REV2)
++#define OCMSIZE 0x0003C000 /* 240K on-chip RAM for both program and data */
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++#define OCMSTART 0x3ffc0000 /* alias from 0x03000000 for easy jump to/from SDRAM */
++#define OCMEND (OCMSTART + OCMSIZE)
++#define SDRAMSTART 0x40000000
++#define FLASHSTART 0x60000000
++
++/*
++ * Registers
++ */
++#define ROSR_INT (1 << 0)
++
++/* Interrupts */
++#define INT_CHIP(reg, bit) (((reg) << 5) | (bit))
++#define INT_REG(interrupt) (((interrupt) >> 5) * 4)
++#define INT_SET(interrupt) 0x0114 + INT_REG(interrupt)
++#define INT_CLR(interrupt) 0x0124 + INT_REG(interrupt)
++#define INT_STAT(interrupt) 0x0104 + INT_REG(interrupt)
++#define INT_MASK(interrupt) 0x00C0 + INT_REG(interrupt)
++#define INT_BIT(interrupt) ((interrupt) & 0x1F)
++#define INT_BIT_MASK(interrupt) (1 << INT_BIT(interrupt))
++
++/*
++ * The LOCK_INT and THREAD_INT are used to wake up corresponding thread. They are sharing
++ * the same set of SW interrupt resource.
++ *
++ * LOCK_INT(n): One SW INT per NRT thread that can participate lock operation.
++ * The threads that can participate lock are application threads and DSR thread.
++ * (Lock locks - numbers are hard-coded in lock.h)
++ * THREAD_INT(n): One SW INT per HRT thread for wake up trigger.
++ */
++#define LOCK_INT(thread) INT_CHIP(0, (thread))
++#define THREAD_INT(thread) INT_CHIP(0, (thread))
++
++/*
++ * The SYSTEM_INT and DSR_INT are sharing the same set of SW interrupt resource.
++ *
++ * SYSTEM_INT(n): One SW INT per NRT threads (application threads) as system queue interrupt,
++ * and for DSR as self-trigger interrupt.
++ * (The application threads include at least thread 0)
++ * DSR_INT(n): One SW INT per HRT thread to request DSR service.
++ */
++#define SYSTEM_INT(thread) INT_CHIP(0, THREAD_COUNT + (thread))
++#define DSR_INT(thread) INT_CHIP(0, THREAD_COUNT + (thread))
++
++/* GLOBAL_CTRL */
++#define GLOBAL_CTRL_TRAP_RST_EN (1 << 9)
++#define GLOBAL_CTRL_AERROR_RST_EN (1 << 8)
++#define GLOBAL_CTRL_MT_MIN_DELAY(x) ((x) << 3)
++#define GLOBAL_CTRL_HRT_BANK_SELECT (1 << 2)
++#define GLOBAL_CTRL_INT_EN (1 << 0)
++
++/*
++ * HRT Tables
++ */
++#define HRT_TABLE0_BASE 0x0800
++#define HRT_TABLE1_BASE 0x0900
++#define HRT_TABLE_SIZE 64
++
++/*
++ * Break Point Trap Register
++ */
++#define ASYNCERROR_INT INT_CHIP(0, 31)
++#define BREAKPOINT_INT INT_CHIP(1, 31)
++
++/*
++ * Port interrupts
++ * The non-existing FIFO INTs are mapped to INT2 for the ports.
++ */
++#define IO_PORT_PTR_TO_NUM(port) (((port) & 0x0000ffff) >> 12)
++#define RX_FIFO_INT(port) \
++ ((IO_PORT_PTR_TO_NUM(port) == 0) ? INT_CHIP(0, 25) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 1) ? INT_CHIP(0, 26) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 2) ? INT_CHIP(0, 29) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 3) ? INT_CHIP(1, 24) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 4) ? INT_CHIP(1, 27) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 5) ? INT_CHIP(1, 16) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 6) ? INT_CHIP(1, 19) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 7) ? INT_CHIP(1, 20) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 8) ? INT_CHIP(1, 21) : \
++ INT_CHIP(1, 15))))))))))
++#define TX_FIFO_INT(port) \
++ ((IO_PORT_PTR_TO_NUM(port) == 0) ? INT_CHIP(0, 24) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 1) ? INT_CHIP(0, 27) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 2) ? INT_CHIP(0, 29) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 3) ? INT_CHIP(1, 25) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 4) ? INT_CHIP(1, 28) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 5) ? INT_CHIP(1, 17) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 6) ? INT_CHIP(1, 19) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 7) ? INT_CHIP(1, 20) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 8) ? INT_CHIP(1, 22) : \
++ INT_CHIP(1, 15))))))))))
++#define PORT_OTHER_INT(port) \
++ ((IO_PORT_PTR_TO_NUM(port) == 0) ? INT_CHIP(0, 25) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 1) ? INT_CHIP(0, 28) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 2) ? INT_CHIP(0, 29) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 3) ? INT_CHIP(1, 26) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 4) ? INT_CHIP(1, 29) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 5) ? INT_CHIP(1, 18) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 6) ? INT_CHIP(1, 19) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 7) ? INT_CHIP(1, 20) : \
++ ((IO_PORT_PTR_TO_NUM(port) == 8) ? INT_CHIP(1, 23) : \
++ INT_CHIP(1, 15))))))))))
++
++/*
++ * On Chip Peripherals Base.
++ */
++#define OCP_BASE 0x01000000
++#define OCP_GENERAL 0x000
++#define OCP_TIMERS 0x100
++#define OCP_TRNG 0x200 /* True Random Number Generator Control Reigsters */
++#define OCP_DEBUG 0x300
++#define OCP_SECURITY 0x400
++#define OCP_ICCR 0x500 /* I-Cache Control Registers */
++#define OCP_DCCR 0x600 /* D-Cache Control Registers */
++#define OCP_OCMC 0x700 /* On Chip Memory Control Registers */
++#define OCP_STATISTICS 0x800 /* Statistics Counters */
++#define OCP_MTEST 0x900 /* Memory Test Registers */
++#define OCP_MCFG 0xa00 /* Memory Configuration Registers -- IP7000 only */
++#define OCP_DEBUG_INST 0x000 /* Up to 16M */
++
++/*
++ * General Configuration Registers (PLL)
++ */
++#define GENERAL_CFG_BASE (OCP_BASE + OCP_GENERAL)
++#define GEN_CLK_CORE_CFG 0x00
++#define GEN_CLK_IO_CFG 0x04
++#define GEN_CLK_DDR_CFG 0x08
++#define GEN_CLK_DDRDS_CFG 0x0c
++#define GEN_CLK_SLIP_CLR 0x10
++#define GEN_CLK_SLIP_START 0x14
++#define GEN_CLK_SERDES_SEL 0x18 /* IP7000 only */
++#define GEN_CLK_DDR_CFG2 0x1c /* IP7000 only */
++#define GEN_DDR_CAL_CTRL 0x30 /* IP5000 only */
++#define GEN_DDR_CAL_STAT 0x34 /* IP5000 only */
++#define GEN_USB_DFT_CTRL 0x38 /* IP5000 only */
++#define GEN_USB_DFT_STAT 0x3c /* IP5000 only */
++#define GEN_USB_PHY_CFG 0x40 /* IP7000 only */
++#define GEN_USB_PHY_TEST 0x44 /* IP7000 only */
++#define GEN_USB_PHY_STAT 0x48 /* IP7000 only */
++#define GEN_SW_RESET 0x80
++#define GEN_RESET_REASON 0x84
++#define GEN_BOND_CFG 0x88
++#define GEN_IO_PU_CFG 0x8c
++#define GEN_MEM_RM_CFG 0x90
++#define GEN_IO_CONFIG 0x94
++
++#define GEN_CLK_PLL_SECURITY_BIT_NO 31
++#define GEN_CLK_PLL_SECURITY (1 << GEN_CLK_PLL_SECURITY_BIT_NO)
++#define GEN_CLK_PLL_ENSAT (1 << 30)
++#define GEN_CLK_PLL_FASTEN (1 << 29)
++#define GEN_CLK_PLL_NR(v) (((v) - 1) << 23)
++#define GEN_CLK_PLL_NF(v) (((v) - 1) << 11)
++#define GEN_CLK_PLL_OD(v) (((v) - 1) << 8)
++#define GEN_CLK_PLL_RESET (1 << 7)
++#define GEN_CLK_PLL_BYPASS (1 << 6)
++#define GEN_CLK_PLL_POWERDOWN (1 << 5)
++#define GEN_CLK_PLL_SELECT (1 << 4)
++
++#define GEN_GET_CLK_PLL_NR(v) ((((v) >> 23) & 0x003f) + 1)
++#define GEN_GET_CLK_PLL_NF(v) ((((v) >> 11) & 0x0fff) + 1)
++#define GEN_GET_CLK_PLL_OD(v) ((((v) >> 8) & 0x7) + 1)
++
++
++#define RESET_FLAG_DST_MEM_ERROR (1 << 18)
++#define RESET_FLAG_SRC1_MEM_ERROR (1 << 17)
++#define RESET_FLAG_WRITE_ADDR (1 << 16)
++#define RESET_FLAG_DST_SYNC_ERROR (1 << 15)
++#define RESET_FLAG_SRC1_SYNC_ERROR (1 << 14)
++#define RESET_FLAG_DST_ALGN_ERROR (1 << 13)
++#define RESET_FLAG_SRC1_ALGN_ERROR (1 << 12)
++#define RESET_FLAG_DST_ADDR_ERROR (1 << 11)
++#define RESET_FLAG_SRC1_ADDR_ERROR (1 << 10)
++#define RESET_FLAG_ILLEGAL_INST (1 << 9)
++#define RESET_FLAG_INST_SYNC_ERROR (1 << 8)
++#define RESET_FLAG_INST_ADDR_ERROR (1 << 7)
++#define RESET_FLAG_DATA_PORT_ERROR (1 << 6)
++#define RESET_FLAG_INST_PORT_ERROR (1 << 5)
++#define RESET_FLAG_SW_RESET (1 << 4)
++#define RESET_FLAG_DEBUG (1 << 3)
++#define RESET_FLAG_WATCHDOG (1 << 2)
++#define RESET_FLAG_POWER_ON (1 << 1)
++#define RESET_FLAG_EXTERNAL (1 << 0)
++
++/*
++ * Timer block
++ */
++#define TIMER_BASE (OCP_BASE + OCP_TIMERS)
++#define TIMER_MPTVAL 0x00
++#define TIMER_RTCOM 0x04
++#define TIMER_TKEY 0x08
++#define TIMER_WDCOM 0x0c
++#define TIMER_WDCFG 0x10
++#define TIMER_SYSVAL 0x14
++#define TIMER_SYSCOM(tmr) (0x18 + (tmr) * 4)
++#define TIMER_TRN_CFG 0x100
++#define TIMER_TRN 0x104
++
++#define TIMER_COUNT 10
++#define TIMER_INT(tmr) INT_CHIP(1, (tmr))
++#define TIMER_TKEYVAL 0xa1b2c3d4
++#define TIMER_WATCHDOG_DISABLE 0x4d3c2b1a
++#define TIMER_TRN_CFG_ENABLE_OSC 0x00000007
++
++#ifndef __ASSEMBLY__
++/*
++ * ubicom32_io_timer
++ */
++struct ubicom32_io_timer {
++ volatile u32_t mptval;
++ volatile u32_t rtcom;
++ volatile u32_t tkey;
++ volatile u32_t wdcom;
++ volatile u32_t wdcfg;
++ volatile u32_t sysval;
++ volatile u32_t syscom[TIMER_COUNT];
++ volatile u32_t reserved[64 - 6 - TIMER_COUNT]; // skip all the way to OCP-TRNG section
++ volatile u32_t rsgcfg;
++ volatile u32_t trn;
++};
++
++#define UBICOM32_IO_TIMER ((struct ubicom32_io_timer *)TIMER_BASE)
++#endif
++
++#define UBICOM32_VECTOR_TO_TIMER_INDEX(vector) (vector - TIMER_INT(0))
++
++/*
++ * OCP-Debug Module (Mailbox)
++ */
++#define ISD_MAILBOX_BASE (OCP_BASE + OCP_DEBUG)
++#define ISD_MAILBOX_IN 0x00
++#define ISD_MAILBOX_OUT 0x04
++#define ISD_MAILBOX_STATUS 0x08
++
++#define ISD_MAILBOX_INT INT_CHIP(1, 30)
++
++#define ISD_MAILBOX_STATUS_IN_FULL (1 << 31)
++#define ISD_MAILBOX_STATUS_IN_EMPTY (1 << 30)
++#define ISD_MAILBOX_STATUS_OUT_FULL (1 << 29)
++#define ISD_MAILBOX_STATUS_OUT_EMPTY (1 << 28)
++
++/*
++ * OCP-Security
++ */
++#define SECURITY_BASE (OCP_BASE + OCP_SECURITY)
++#define SECURITY_BASE_EFFECTIVE_ADDRESS (SECURITY_BASE >> 7) // To load the base address in a single instruction
++#define SECURITY_CTRL 0x00
++#define SECURITY_CTRL_BYTE_OFFSET(x) ((x) << 16)
++#define SECURITY_CTRL_KEY_SIZE(x) ((x) << 8)
++#define SECURITY_CTRL_HASH_ALG_NONE (0 << 4)
++#define SECURITY_CTRL_HASH_ALG_MD5 (1 << 4)
++#define SECURITY_CTRL_HASH_ALG_SHA1 (2 << 4)
++#define SECURITY_CTRL_CBC (1 << 3)
++#define SECURITY_CTRL_CIPHER_ALG_AES (0 << 1)
++#define SECURITY_CTRL_CIPHER_ALG_NONE (1 << 1)
++#define SECURITY_CTRL_CIPHER_ALG_DES (2 << 1)
++#define SECURITY_CTRL_CIPHER_ALG_3DES (3 << 1)
++#define SECURITY_CTRL_ENCIPHER (1 << 0)
++#define SECURITY_CTRL_DECIPHER (0 << 0)
++#define SECURITY_STAT 0x04
++#define SECURITY_STAT_BUSY (1 << 0)
++#define SECURITY_KEY_VALUE(x) (0x10 + (x) * 4)
++#define SECURITY_KEY_IN(x) (0x30 + (x) * 4)
++#define SECURITY_KEY_OUT(x) (0x50 + (x) * 4)
++#define SECURITY_KEY_HASH(x) (0x70 + (x) * 4)
++
++/*
++ * OCP-ICCR
++ */
++#define ICCR_BASE (OCP_BASE + OCP_ICCR)
++#define ICACHE_TOTAL_SIZE 16384 /* in bytes */
++
++/*
++ * OCP-DCCR
++ */
++#define DCCR_BASE (OCP_BASE + OCP_DCCR)
++#if defined(IP5000) || defined(IP5000_REV2)
++#define DCACHE_TOTAL_SIZE 8192 /* in bytes */
++#elif defined(IP7000) || defined(IP7000_REV2)
++#define DCACHE_TOTAL_SIZE 16384 /* in bytes */
++#endif
++
++#if defined(IP5000) || defined(IP5000_REV2) || defined(IP7000) || defined(IP7000_REV2)
++#define DCACHE_WRITE_QUEUE_LENGTH 6
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++#define CACHE_LINE_SIZE 32 /* in bytes */
++
++#define CCR_ADDR 0x00
++#define CCR_RDD 0x04
++#define CCR_WRD 0x08
++#define CCR_STAT 0x0c
++#define CCR_CTRL 0x10
++
++#define CCR_STAT_MCBE 0
++#define CCR_STAT_WIDEL 1 /* D-cache only */
++
++#define CCR_CTRL_DONE 0
++#define CCR_CTRL_RESET 2
++#define CCR_CTRL_VALID 3
++#define CCR_CTRL_RD_DATA (1 << 4)
++#define CCR_CTRL_RD_TAG (2 << 4)
++#define CCR_CTRL_WR_DATA (3 << 4)
++#define CCR_CTRL_WR_TAG (4 << 4)
++#define CCR_CTRL_INV_INDEX (5 << 4)
++#define CCR_CTRL_INV_ADDR (6 << 4)
++#define CCR_CTRL_FLUSH_INDEX (7 << 4) /* D-cache only */
++#define CCR_CTRL_FLUSH_INV_INDEX (8 << 4) /* D-cache only */
++#define CCR_CTRL_FLUSH_ADDR (9 << 4) /* D-cache only */
++#define CCR_CTRL_FLUSH_INV_ADDR (10 << 4) /* D-cache only */
++
++/*
++ * OCP-OCMC
++ */
++#define OCMC_BASE (OCP_BASE + OCP_OCMC)
++#define OCMC_BANK_MASK 0x00
++#define OCMC_BIST_CNTL 0x04 /* IP5000 only */
++#define OCMC_BIST_STAT 0x08 /* IP5000 only */
++
++#define OCMC_BANK_PROG(n) ((1<<(n))-1)
++
++#define OCMC_BIST_WRCK (1 << 7)
++#define OCMC_BIST_RESET (1 << 5)
++#define OCMC_BIST_SMART (1 << 4)
++#define OCMC_BIST_RUN (1 << 3)
++#define OCMC_BIST_REPAIR (1 << 2)
++
++#define OCMC_BIST_READY (1 << 3)
++#define OCMC_BIST_FAIL (1 << 2)
++
++/*
++ * OCP-STATISTICS
++ */
++#define STATISTICS_BASE (OCP_BASE + OCP_STATISTICS)
++#define STAT_COUNTER_CTRL(n) ((n)*8)
++#define STAT_COUNTER(n) ((n)*8 + 4)
++
++#define STAT_EVENT_MP_INST 0
++#define STAT_EVENT_OCM_ACCESS 4
++#define STAT_EVENT_OCM_REQ 5
++#define STAT_EVENT_IC_REQ_INVAL 13
++#define STAT_EVENT_IC_MISS_INVAL 14
++#define STAT_EVENT_IC_REQ_INVAL_NACK 15
++#define STAT_EVENT_IC_REQ_VAL 16
++#define STAT_EVENT_IC_MISS_VAL 17
++#define STAT_EVENT_IC_REQ_VAL_NACK 18
++#define STAT_EVENT_IC_MISS_Q 19
++#define STAT_EVENT_DC_RD_REQ 20
++#define STAT_EVENT_DC_RD_MISS 21
++#define STAT_EVENT_DC_WR_REQ 22
++#define STAT_EVENT_DC_WR_MISS 23
++#define STAT_EVENT_DC_MISS_Q 24
++#define STAT_EVENT_DC_WB_FULL 25
++#define STAT_EVENT_DC_REQ_NACK 26
++#define STAT_EVENT_DC_CORE_REQ 27
++#define STAT_EVENT_DC_MISS 28
++#define STAT_EVENT_DC_EVICT 29
++#define STAT_EVENT_TRUE 30
++#define STAT_EVENT_FALSE 31
++
++/*
++ * OCP_MTEST
++ */
++#define MTEST_BASE (OCP_BASE + OCP_MTEST)
++#define MTEST_ADDR 0x00
++#define MTEST_WR 0x04
++#define MTEST_RD 0x08
++#define MTEST_CTRL 0x0c
++
++/*
++ * OCP_MCFG (IP7000 only)
++ */
++#define MCFG_BASE (OCP_BASE + OCP_MCFG)
++#define MCFG_CTRL 0x00
++#define MCFG_WCFG 0x04
++#define MCFG_RCFG 0x08
++
++/*
++ * Port registers
++ */
++#define IO_BASE 0x02000000
++#define RA (IO_BASE + 0x00000000)
++#define RB (IO_BASE + 0x00001000)
++#define RC (IO_BASE + 0x00002000)
++#define RD (IO_BASE + 0x00003000)
++#define RE (IO_BASE + 0x00004000)
++#define RF (IO_BASE + 0x00005000)
++#define RG (IO_BASE + 0x00006000)
++#define RH (IO_BASE + 0x00007000)
++#define RI (IO_BASE + 0x00008000)
++#define RJ (IO_BASE + 0x00009000)
++#define RLATCH (IO_BASE + 0x00ff0000) // For latched output only
++#define IO_PORT_BR_OFFSET 0x00000800
++
++/*
++ * General I/O Register Map (per port)
++ */
++#define IO_FUNC 0x00
++#define IO_GPIO_CTL 0x04
++#define IO_GPIO_OUT 0x08
++#define IO_GPIO_IN 0x0C
++#define IO_INT_STATUS 0x10
++#define IO_INT_MASK 0x14
++#define IO_INT_SET 0x18
++#define IO_INT_CLR 0x1C
++#define IO_TX_FIFO 0x20
++#define IO_TX_FIFO_HI 0x24
++#define IO_RX_FIFO 0x28
++#define IO_RX_FIFO_HI 0x2c
++#define IO_CTL0 0x30
++#define IO_CTL1 0x34
++#define IO_CTL2 0x38
++#define IO_STATUS0 0x3c
++#define IO_STATUS1 0x40
++#define IO_STATUS2 0x44
++#define IO_FIFO_WATER 0x48
++#define IO_FIFO_LEVEL 0x4c
++#define IO_GPIO_MASK 0x50
++
++#define IO_FUNC_FUNCTION_RESET(func) ((1 << ((func) - 1)) << 4) /* Function 0 doesn't need reset */
++#define IO_FUNC_RX_FIFO (1 << 3)
++#define IO_FUNC_SELECT(func) ((func) << 0)
++
++/*
++ * External interrupt pins.
++ */
++#define EXT_INT_IO_BIT(pin) ((pin) + 5) // Interrupt pin number -> I/O INT bit
++#define EXT_INT_RISING_EDGE(pin) (0x2 << (2*(pin) + 7))
++#define EXT_INT_FALLING_EDGE(pin) (0x1 << (2*(pin) + 7))
++
++/*
++ * Flash
++ */
++#define IO_XFL_BASE RA
++
++#define IO_XFL_INT_START (1 << 16)
++#define IO_XFL_INT_ERR (1 << 8)
++#define IO_XFL_INT_DONE (1 << 0)
++
++#define IO_XFL_CTL0_MASK (0xffe07fff)
++#define IO_XFL_CTL0_RD_CMD(cmd) (((cmd) & 0xff) << 24)
++#define IO_XFL_CTL0_RD_DUMMY(n) (((n) & 0x7) << 21)
++#define IO_XFL_CTL0_CLK_WIDTH(core_cycles) ((((core_cycles) + 1) & 0x7e) << 8) /* must be even number */
++#define IO_XFL_CTL0_CE_WAIT(spi_cycles) (((spi_cycles) & 0x3f) << 2)
++#define IO_XFL_CTL0_MCB_LOCK (1 << 1)
++#define IO_XFL_CTL0_ENABLE (1 << 0)
++#define IO_XFL_CTL0_FAST_VALUE(div, wait) (IO_XFL_CTL0_RD_CMD(0xb) | IO_XFL_CTL0_RD_DUMMY(1) | IO_XFL_CTL0_CLK_WIDTH(div) | IO_XFL_CTL0_CE_WAIT(wait) | IO_XFL_CTL0_ENABLE)
++#define IO_XFL_CTL0_VALUE(div, wait) (IO_XFL_CTL0_RD_CMD(3) | IO_XFL_CTL0_CLK_WIDTH(div) | IO_XFL_CTL0_CE_WAIT(wait) | IO_XFL_CTL0_ENABLE)
++
++#define IO_XFL_CTL1_MASK (0xc0003fff)
++#define IO_XFL_CTL1_FC_INST(inst) (((inst) & 0x3) << 30)
++#define IO_XFL_CTL1_FC_DATA(n) (((n) & 0x3ff) << 4)
++#define IO_XFL_CTL1_FC_DUMMY(n) (((n) & 0x7) << 1)
++#define IO_XFL_CTL1_FC_ADDR (1 << 0)
++
++#define IO_XFL_CTL2_FC_CMD(cmd) (((cmd) & 0xff) << 24)
++#define IO_XFL_CTL2_FC_ADDR(addr) ((addr) & 0x00ffffff) /* Only up to 24 bits */
++
++#define IO_XFL_STATUS0_MCB_ACTIVE (1 << 0)
++#define IO_XFL_STATUS0_IOPCS_ACTIVE (1 << 1)
++
++/*
++ * SDRAM
++ */
++#define IO_SDRAM_DATA_BASE RG
++#define IO_SDRAM_CNTL_BASE RH
++
++#define IO_SDRAM_CTRL0_EN_REF (1 << 0)
++
++/*
++ * Port function code (common fucntion codes for all I/O ports)
++ */
++#define IO_PORTX_FUNC_GPIO 0x00
++#define IO_PORTX_FUNC_XFL 0x01
++#define IO_PORTX_FUNC_PCI 0x01
++#define IO_PORTX_FUNC_SERDES 0x01
++#define IO_PORTX_FUNC_GMII 0x01
++#define IO_PORTX_FUNC_DDR 0x01
++#define IO_PORTX_FUNC_PCIX 0x01
++#define IO_PORTX_FUNC_USB2_0 0x01
++#define IO_PORTX_FUNC_GPIO_INT_CLK 0x02
++#define IO_PORTX_FUNC_PLIO 0x02
++#define IO_PORTX_FUNC_GPIO_INT 0x03
++#define IO_PORTX_FUNC_MII 0x03
++
++/*
++ * Port 0
++ */
++#define IO_PORT0_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT0_FUNC_XFL_INT_CLK IO_PORTX_FUNC_XFL // Default mode after reset
++#define IO_PORT0_FUNC_GPIO_INT_CLK IO_PORTX_FUNC_GPIO_INT_CLK
++#define IO_PORT0_FUNC_GPIO_INT IO_PORTX_FUNC_GPIO_INT
++
++/*
++ * Port 1
++ */
++#define IO_PORT1_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT1_FUNC_PCI IO_PORTX_FUNC_PCI // PCI control
++#define IO_PORT1_FUNC_MII IO_PORTX_FUNC_MII // port 4 MII extension
++
++/*
++ * Port 2
++ */
++#define IO_PORT2_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT2_FUNC_PCI IO_PORTX_FUNC_PCI // PCI data I/O
++#define IO_PORT2_FUNC_PLIO IO_PORTX_FUNC_PLIO // Extended LM
++
++/*
++ * Port 3
++ */
++#define IO_PORT3_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT3_FUNC_SERDES IO_PORTX_FUNC_SERDES
++#define IO_PORT3_FUNC_PLIO IO_PORTX_FUNC_PLIO
++
++/*
++ * Port 4
++ */
++#define IO_PORT4_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT4_FUNC_SERDES IO_PORTX_FUNC_SERDES
++#define IO_PORT4_FUNC_PLIO IO_PORTX_FUNC_PLIO // Extended LM
++#define IO_PORT4_FUNC_MII IO_PORTX_FUNC_MII
++
++/*
++ * Port 5
++ */
++#define IO_PORT5_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT5_FUNC_GMII IO_PORTX_FUNC_GMII
++
++/*
++ * Port 6
++ */
++#define IO_PORT6_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT6_FUNC_DDR IO_PORTX_FUNC_DDR
++
++/*
++ * Port 7
++ */
++#define IO_PORT7_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT7_FUNC_DDR IO_PORTX_FUNC_DDR
++
++/*
++ * Port 8
++ */
++#define IO_PORT8_FUNC_GPIO IO_PORTX_FUNC_GPIO
++#define IO_PORT8_FUNC_PCIX IO_PORTX_FUNC_PCIX
++#define IO_PORT8_FUNC_PLIO IO_PORTX_FUNC_PLIO // Extended LM
++#define IO_PORT8_FUNC_MII IO_PORTX_FUNC_MII // port 4 MII extension
++
++/*
++ * Port 9
++ */
++#define IO_PORT9_FUNC_USB2_0 IO_PORTX_FUNC_USB2_0
++
++/*
++ * FIFO
++ */
++#define IO_PORTX_INT_FIFO_TX_RESET (1 << 31)
++#define IO_PORTX_INT_FIFO_RX_RESET (1 << 30)
++#define IO_PORTX_INT_FIFO_TX_UF (1 << 15)
++#define IO_PORTX_INT_FIFO_TX_WM (1 << 14)
++#define IO_PORTX_INT_FIFO_RX_OF (1 << 13)
++#define IO_PORTX_INT_FIFO_RX_WM (1 << 12)
++
++#define IO_PORTX_FUNC_FIFO_TX_WM(n) ((n) << 16)
++#define IO_PORTX_FUNC_FIFO_RX_WM(n) ((n) << 0)
++
++/*
++ * MII
++ */
++#define IO_PORTX_INT_MII_TX_ERR_SEND (1 << 18)
++#define IO_PORTX_INT_MII_TX_HALT (1 << 17)
++#define IO_PORTX_INT_MII_TX_START (1 << 16)
++#define IO_PORTX_INT_MII_THRESHOLD (1 << 8)
++#define IO_PORTX_INT_MII_RX_EOP (1 << 7)
++#define IO_PORTX_INT_MII_RX_SFD (1 << 6)
++#define IO_PORTX_INT_MII_RX_ERR (1 << 5)
++#define IO_PORTX_INT_MII_TX_EOP (1 << 4)
++#define IO_PORTX_INT_MII_COL (1 << 3)
++#define IO_PORTX_INT_MII_CRS (1 << 2)
++#define IO_PORTX_INT_MII_ODD_NIB_ERR (1 << 1)
++#define IO_PORTX_INT_MII_FALSE_CARRIER (1 << 0)
++
++/*
++ * SerDes
++ */
++#define IO_PORTX_INT_SERDES_TXBUF_VALID (1 << 16)
++#define IO_PORTX_INT_SERDES_RXERR (1 << 7)
++#define IO_PORTX_INT_SERDES_RXEOP (1 << 6)
++#define IO_PORTX_INT_SERDES_SYND (1 << 5)
++#define IO_PORTX_INT_SERDES_TXBE (1 << 4)
++#define IO_PORTX_INT_SERDES_TXEOP (1 << 3)
++#define IO_PORTX_INT_SERDES_SXLP (1 << 2)
++#define IO_PORTX_INT_SERDES_RXBF (1 << 1)
++#define IO_PORTX_INT_SERDES_RXCRS (1 << 0)
++
++#ifndef __ASSEMBLY__
++struct ubicom32_io_port {
++ volatile u32_t function;
++ volatile u32_t gpio_ctl;
++ volatile u32_t gpio_out;
++ volatile u32_t gpio_in;
++ volatile u32_t int_status;
++ volatile u32_t int_mask;
++ volatile u32_t int_set;
++ volatile u32_t int_clr;
++ volatile u32_t tx_fifo;
++ volatile u32_t tx_fifo_hi;
++ volatile u32_t rx_fifo;
++ volatile u32_t rx_fifo_hi;
++ volatile u32_t ctl0;
++ volatile u32_t ctl1;
++ volatile u32_t ctl2;
++ volatile u32_t status0;
++ volatile u32_t status1;
++ volatile u32_t status2;
++ volatile u32_t fifo_watermark;
++ volatile u32_t fifo_level;
++ volatile u32_t gpio_mask;
++};
++
++#define UBICOM32_IO_PORT(port) ((struct ubicom32_io_port *)((port)))
++#endif
++
++#ifndef __ASSEMBLY__
++/*
++ * ubicom32_set_interrupt()
++ */
++extern inline void ubicom32_set_interrupt(u8_t interrupt)
++{
++ u32_t ibit = INT_BIT_MASK(interrupt);
++
++ if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) {
++ asm volatile (
++ "move.4 "D(INT_SET(INT_CHIP(0, 0)))", %0\n\t"
++ :
++ : "r" (ibit)
++ );
++
++ return;
++ }
++
++ asm volatile (
++ "move.4 "D(INT_SET(INT_CHIP(1, 0)))", %0\n\t"
++ :
++ : "r" (ibit)
++ );
++}
++
++/*
++ * ubicom32_clear_interrupt()
++ */
++extern inline void ubicom32_clear_interrupt(u8_t interrupt)
++{
++ u32_t ibit = INT_BIT_MASK(interrupt);
++
++ if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) {
++ asm volatile (
++ "move.4 "D(INT_CLR(INT_CHIP(0, 0)))", %0\n\t"
++ :
++ : "r" (ibit)
++ );
++
++ return;
++ }
++
++ asm volatile (
++ "move.4 "D(INT_CLR(INT_CHIP(1, 0)))", %0\n\t"
++ :
++ : "r" (ibit)
++ );
++}
++
++/*
++ * ubicom32_enable_interrupt()
++ */
++extern inline void ubicom32_enable_interrupt(u8_t interrupt)
++{
++ u32_t ibit = INT_BIT_MASK(interrupt);
++
++ if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) {
++ asm volatile (
++ "or.4 "D(INT_MASK(INT_CHIP(0, 0)))", "D(INT_MASK(INT_CHIP(0, 0)))", %0\n\t"
++ :
++ : "d" (ibit)
++ );
++
++ return;
++ }
++
++ asm volatile (
++ "or.4 "D(INT_MASK(INT_CHIP(1, 0)))", "D(INT_MASK(INT_CHIP(1, 0)))", %0\n\t"
++ :
++ : "d" (ibit)
++ );
++}
++
++/*
++ * ubicom32_disable_interrupt()
++ */
++extern inline void ubicom32_disable_interrupt(u8_t interrupt)
++{
++ u32_t ibit = ~INT_BIT_MASK(interrupt);
++
++ if (INT_REG(interrupt) == INT_REG(INT_CHIP(0, 0))) {
++ asm volatile (
++ "and.4 "D(INT_MASK(INT_CHIP(0, 0)))", "D(INT_MASK(INT_CHIP(0, 0)))", %0\n\t"
++ :
++ : "d" (ibit)
++ );
++
++ return;
++ }
++
++ asm volatile (
++ "and.4 "D(INT_MASK(INT_CHIP(1, 0)))", "D(INT_MASK(INT_CHIP(1, 0)))", %0\n\t"
++ :
++ : "d" (ibit)
++ );
++}
++
++/*
++ * ubicom32_enable_global_interrupts()
++ */
++extern inline void ubicom32_enable_global_interrupts(void)
++{
++ asm volatile(
++ "bset GLOBAL_CTRL, GLOBAL_CTRL, #%bit("D(GLOBAL_CTRL_INT_EN)")"
++ );
++}
++
++/*
++ * ubicom32_disable_global_interrupts()
++ */
++extern inline void ubicom32_disable_global_interrupts(void)
++{
++ asm volatile(
++ "bclr GLOBAL_CTRL, GLOBAL_CTRL, #%bit("D(GLOBAL_CTRL_INT_EN)")"
++ );
++}
++
++/*
++ * ubicom32_get_reset_reason()
++ */
++extern inline u32_t ubicom32_get_reset_reason(void)
++{
++ return *(u32_t *)(GENERAL_CFG_BASE + GEN_RESET_REASON);
++}
++
++/*
++ * ubicom32_read_reg()
++ */
++extern inline u32_t ubicom32_read_reg(volatile void *reg)
++{
++ u32_t v;
++ asm volatile (
++ "move.4 %[dest], %[src] \n\t"
++ : [dest] "=r" (v)
++ : [src] "m" (*(u32_t *)reg)
++ );
++ return v;
++}
++
++/*
++ * ubicom32_write_reg()
++ */
++extern inline void ubicom32_write_reg(volatile void *reg, u32_t v)
++{
++ asm volatile (
++ "move.4 %[dest], %[src] \n\t"
++ :
++ : [src] "r" (v), [dest] "m" (*(u32_t *)reg)
++ );
++}
++
++#endif /* __ASSEMBLY__ */
++#endif /* _ASM_UBICOM32_IP5000_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ipcbuf.h
+@@ -0,0 +1,55 @@
++/*
++ * arch/ubicom32/include/asm/ipcbuf.h
++ * Definition of ipc64_perm struct for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IPCBUF_H
++#define _ASM_UBICOM32_IPCBUF_H
++
++/*
++ * The user_ipc_perm structure for m68k architecture.
++ * Note extra padding because this structure is passed back and forth
++ * between kernel and user space.
++ *
++ * Pad space is left for:
++ * - 32-bit mode_t and seq
++ * - 2 miscellaneous 32-bit values
++ */
++struct ipc64_perm
++{
++ __kernel_key_t key;
++ __kernel_uid32_t uid;
++ __kernel_gid32_t gid;
++ __kernel_uid32_t cuid;
++ __kernel_gid32_t cgid;
++ __kernel_mode_t mode;
++ unsigned short __pad1;
++ unsigned short seq;
++ unsigned short __pad2;
++ unsigned long __unused1;
++ unsigned long __unused2;
++};
++
++#endif /* _ASM_UBICOM32_IPCBUF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/irqflags.h
+@@ -0,0 +1,94 @@
++/*
++ * arch/ubicom32/include/asm/irqflags.h
++ * Raw implementation of local IRQ functions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IRQFLAGS_H
++#define _ASM_UBICOM32_IRQFLAGS_H
++
++#include <linux/thread_info.h>
++#include <asm/ubicom32-common.h>
++#include <asm/smp.h>
++#include <asm/ldsr.h>
++
++#if defined(CONFIG_PREEMPT)
++#error Not supported by Ubicom32 irq handling, yet!
++#endif
++
++/*
++ * raw_local_irq_enable()
++ * Enable interrupts for this thread.
++ */
++static inline void raw_local_irq_enable(void)
++{
++ ldsr_local_irq_enable();
++}
++
++/*
++ * raw_local_irq_disable()
++ * Disable interrupts for this thread.
++ */
++static inline void raw_local_irq_disable(void)
++{
++ ldsr_local_irq_disable();
++}
++
++/*
++ * raw_local_save_flags()
++ * Get the current IRQ state.
++ */
++#define raw_local_save_flags(flags) \
++do { \
++ (flags) = ldsr_local_irq_is_disabled(); \
++} while (0)
++
++/*
++ * raw_local_irq_save()
++ * Save the current interrupt state and disable interrupts.
++ */
++#define raw_local_irq_save(flags) \
++do { \
++ (flags) = ldsr_local_irq_save(); \
++} while (0)
++
++/*
++ * raw_local_irq_restore()
++ * Restore the IRQ state back to flags.
++ */
++static inline void raw_local_irq_restore(unsigned long flags)
++{
++ ldsr_local_irq_restore(flags);
++}
++
++/*
++ * raw_irqs_disabled_flags()
++ * Return true if the flags indicate that IRQ(s) are disabled.
++ */
++static inline int raw_irqs_disabled_flags(unsigned long flags)
++{
++ return (flags);
++}
++
++#endif /* _ASM_UBICOM32_IRQFLAGS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/irq.h
+@@ -0,0 +1,45 @@
++/*
++ * arch/ubicom32/include/asm/irq.h
++ * IRQ definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IRQ_H
++#define _ASM_UBICOM32_IRQ_H
++
++#include <asm/irqflags.h>
++
++/*
++ * We setup the IRQS to cover the full range of interrupt registers in
++ * processor.
++ */
++#define NR_IRQS 64
++
++#define irq_canonicalize(irq) (irq)
++
++extern int irq_soft_alloc(unsigned int *soft);
++extern void ack_bad_irq(unsigned int irq);
++extern void do_IRQ(int irq, struct pt_regs *fp);
++
++#endif /* _ASM_UBICOM32_IRQ_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/irq_regs.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/irq_regs.h
++ * Generic irq_regs.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_IRQ_REGS_H
++#define _ASM_UBICOM32_IRQ_REGS_H
++
++#include <asm-generic/irq_regs.h>
++
++#endif /* _ASM_UBICOM32_IRQ_REGS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/Kbuild
+@@ -0,0 +1 @@
++include include/asm-generic/Kbuild.asm
+--- /dev/null
++++ b/arch/ubicom32/include/asm/kdebug.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/kdebug.h
++ * Generic kdebug.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_KDEBUG_H
++#define _ASM_UBICOM32_KDEBUG_H
++
++#include <asm-generic/kdebug.h>
++
++#endif /* _ASM_UBICOM32_KDEBUG_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/kmap_types.h
+@@ -0,0 +1,48 @@
++/*
++ * arch/ubicom32/include/asm/kmap_types.h
++ * Definition of km_type's for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_KMAP_TYPES_H
++#define _ASM_UBICOM32_KMAP_TYPES_H
++
++enum km_type {
++ KM_BOUNCE_READ,
++ KM_SKB_SUNRPC_DATA,
++ KM_SKB_DATA_SOFTIRQ,
++ KM_USER0,
++ KM_USER1,
++ KM_BIO_SRC_IRQ,
++ KM_BIO_DST_IRQ,
++ KM_PTE0,
++ KM_PTE1,
++ KM_IRQ0,
++ KM_IRQ1,
++ KM_SOFTIRQ0,
++ KM_SOFTIRQ1,
++ KM_TYPE_NR
++};
++
++#endif /* _ASM_UBICOM32_KMAP_TYPES_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ldsr.h
+@@ -0,0 +1,186 @@
++/*
++ * arch/ubicom32/include/asm/ldsr.h
++ * Ubicom32 LDSR interface definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_LDSR_H
++#define _ASM_UBICOM32_LDSR_H
++
++#include <asm/ubicom32-common.h>
++#include <asm/types.h>
++#include <asm/thread.h>
++
++extern unsigned int ldsr_soft_irq_mask;
++
++/*
++ * ldsr_local_irq_is_disabled()
++ * Test if interrupts are disabled for this thread?
++ */
++static inline int ldsr_local_irq_is_disabled(void)
++{
++ int ret;
++ thread_t self = thread_get_self();
++ unsigned int mask = (1 << self);
++
++ asm volatile (
++ " and.4 %0, scratchpad1, %1 \n\t"
++ : "=r" (ret)
++ : "d" (mask)
++ : "cc"
++ );
++
++ /*
++ * We return a simple 1 == disabled, 0 == enabled
++ * losing which tid this is for, because Linux
++ * can restore interrupts on a different thread.
++ */
++ return ret >> self;
++}
++
++/*
++ * ldsr_local_irq_save()
++ * Get the current interrupt state and disable interrupts.
++ */
++static inline unsigned int ldsr_local_irq_save(void)
++{
++ int ret;
++ thread_t self = thread_get_self();
++ unsigned int mask = (1 << self);
++
++ /*
++ * Ensure the compiler can not optimize out the code
++ * (volatile) and that it does not "cache" values around
++ * the interrupt state change (memory). This ensures
++ * that interrupt changes are treated as a critical
++ * section.
++ */
++ asm volatile (
++ " and.4 %0, scratchpad1, %1 \n\t"
++ " or.4 scratchpad1, scratchpad1, %1 \n\t"
++ : "=&r" (ret)
++ : "d" (mask)
++ : "cc", "memory"
++ );
++
++ /*
++ * We return a simple 1 == disabled, 0 == enabled
++ * losing which tid this is for, because Linux
++ * can restore interrupts on a different thread.
++ */
++ return ret >> self;
++}
++
++/*
++ * ldsr_local_irq_restore()
++ * Restore this cpu's interrupt enable/disable state.
++ *
++ * Note: flags is either 0 or 1.
++ */
++static inline void ldsr_local_irq_restore(unsigned int flags)
++{
++ unsigned int temp;
++ thread_t self = thread_get_self();
++ unsigned int mask = (1 << self);
++ flags = (flags << self);
++
++ /*
++ * Ensure the compiler can not optimize out the code
++ * (volatile) and that it does not "cache" values around
++ * the interrupt state change (memory). This ensures
++ * that interrupt changes are treated as a critical
++ * section.
++ *
++ * Atomic change to our bit in scratchpad1 without
++ * causing any temporary glitch in the value and
++ * without effecting other values. Also this uses
++ * no branches so no penalties.
++ */
++ asm volatile (
++ " xor.4 %0, scratchpad1, %1 \n\t"
++ " and.4 %0, %2, %0 \n\t"
++ " xor.4 scratchpad1, scratchpad1, %0 \n\t"
++ " move.4 int_set0, %3 \n\t"
++ : "=&d"(temp)
++ : "d"(flags), "r"(mask), "r"(ldsr_soft_irq_mask)
++ : "cc", "memory"
++ );
++}
++
++/*
++ * ldsr_local_irq_disable_interrupt()
++ * Disable ints for this thread.
++ */
++static inline void ldsr_local_irq_disable(void)
++{
++ unsigned int mask = (1 << thread_get_self());
++
++ /*
++ * Ensure the compiler can not optimize out the code
++ * (volatile) and that it does not "cache" values around
++ * the interrupt state change (memory). This ensures
++ * that interrupt changes are treated as a critical
++ * section.
++ */
++ asm volatile (
++ " or.4 scratchpad1, scratchpad1, %0 \n\t"
++ :
++ : "d" (mask)
++ : "cc", "memory"
++ );
++}
++
++/*
++ * ldsr_local_irq_enable_interrupt
++ * Enable ints for this thread.
++ */
++static inline void ldsr_local_irq_enable(void)
++{
++ unsigned int mask = (1 << thread_get_self());
++
++ /*
++ * Ensure the compiler can not optimize out the code
++ * (volatile) and that it does not "cache" values around
++ * the interrupt state change (memory). This ensures
++ * that interrupt changes are treated as a critical
++ * section.
++ */
++ asm volatile (
++ " and.4 scratchpad1, scratchpad1, %0 \n\t"
++ " move.4 int_set0, %1 \n\t"
++ :
++ : "d" (~mask), "r" (ldsr_soft_irq_mask)
++ : "cc", "memory"
++ );
++}
++
++extern void ldsr_init(void);
++extern void ldsr_set_trap_irq(unsigned int irq);
++extern void ldsr_mask_vector(unsigned int vector);
++extern void ldsr_unmask_vector(unsigned int vector);
++extern void ldsr_enable_vector(unsigned int vector);
++extern void ldsr_disable_vector(unsigned int vector);
++extern thread_t ldsr_get_threadid(void);
++
++#endif /* _ASM_UBICOM32_LDSR_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/linkage.h
+@@ -0,0 +1,34 @@
++/*
++ * arch/ubicom32/include/asm/linkage.h
++ * Definition of Ubicom32 architecture specific linkage types.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_LINKAGE_H
++#define _ASM_UBICOM32_LINKAGE_H
++
++#define __ocm_text __section(.ocm_text)
++#define __ocm_data __section(.ocm_data)
++
++#endif /* _ASM_UBICOM32_LINKAGE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/local.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/local.h
++ * Generic local.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_LOCAL_H
++#define _ASM_UBICOM32_LOCAL_H
++
++#include <asm-generic/local.h>
++
++#endif /* _ASM_UBICOM32_LOCAL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/machdep.h
+@@ -0,0 +1,43 @@
++/*
++ * arch/ubicom32/include/asm/machdep.h
++ * Machine dependent utility routines.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MACHDEP_H
++#define _ASM_UBICOM32_MACHDEP_H
++
++#include <linux/interrupt.h>
++
++/* Hardware clock functions */
++extern unsigned long hw_timer_offset(void);
++
++/* machine dependent power off functions */
++extern void (*mach_reset)(void);
++extern void (*mach_halt)(void);
++extern void (*mach_power_off)(void);
++
++extern void config_BSP(char *command, int len);
++
++#endif /* _ASM_UBICOM32_MACHDEP_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mc146818rtc.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/mc146818rtc.h
++ * Generic mc146818rtc.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++/*
++ * Machine dependent access functions for RTC registers.
++ */
++#ifndef _ASM_UBICOM32_MC146818RTC_H
++#define _ASM_UBICOM32_MC146818RTC_H
++
++/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
++
++#endif /* _ASM_UBICOM32_MC146818RTC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mman.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/mman.h
++ * Memory mapping definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MMAN_H
++#define _ASM_UBICOM32_MMAN_H
++
++#include <asm-generic/mman.h>
++
++#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
++#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
++#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
++#define MAP_LOCKED 0x2000 /* pages are locked */
++#define MAP_NORESERVE 0x4000 /* don't check for reservations */
++#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
++#define MAP_NONBLOCK 0x10000 /* do not block on IO */
++
++#define MCL_CURRENT 1 /* lock all current mappings */
++#define MCL_FUTURE 2 /* lock all future mappings */
++
++#endif /* _ASM_UBICOM32_MMAN_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mmu_context.h
+@@ -0,0 +1,60 @@
++/*
++ * arch/ubicom32/include/asm/mmu_context.h
++ * MMU context definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004, Microtronix Datacom Ltd., All rights reserved.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_MMU_CONTEXT_H
++#define _ASM_UBICOM32_MMU_CONTEXT_H
++
++#include <asm/setup.h>
++#include <asm/page.h>
++#include <asm/pgalloc.h>
++
++static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
++{
++}
++
++extern inline int
++init_new_context(struct task_struct *tsk, struct mm_struct *mm)
++{
++ // mm->context = virt_to_phys(mm->pgd);
++ return(0);
++}
++
++#define destroy_context(mm) do { } while(0)
++
++static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
++{
++}
++
++#define deactivate_mm(tsk,mm) do { } while (0)
++
++extern inline void activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
++{
++}
++
++#endif /* _ASM_UBICOM32_MMU_CONTEXT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mmu.h
+@@ -0,0 +1,41 @@
++/*
++ * arch/ubicom32/include/asm/mmu.h
++ * Definition of mm_context_t struct for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2002, David McCullough <davidm@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MMU_H
++#define _ASM_UBICOM32_MMU_H
++
++typedef struct {
++ struct vm_list_struct *vmlist;
++ unsigned long end_brk;
++#ifdef CONFIG_BINFMT_ELF_FDPIC
++ unsigned long exec_fdpic_loadmap;
++ unsigned long interp_fdpic_loadmap;
++#endif
++} mm_context_t;
++
++#endif /* _ASM_UBICOM32_MMU_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/module.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/module.h
++ * Ubicom32 architecture specific module definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MODULE_H
++#define _ASM_UBICOM32_MODULE_H
++
++struct mod_arch_specific {
++ void *ocm_inst;
++ int ocm_inst_size;
++};
++
++#define Elf_Shdr Elf32_Shdr
++#define Elf_Sym Elf32_Sym
++#define Elf_Ehdr Elf32_Ehdr
++
++#define ARCH_PROC_MODULES_EXTRA(m,mod) \
++ seq_printf(m, " OCM(%d bytes @ 0x%p)", \
++ (mod)->arch.ocm_inst_size, (mod)->arch.ocm_inst)
++
++#endif /* _ASM_UBICOM32_MODULE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/msgbuf.h
+@@ -0,0 +1,58 @@
++/*
++ * arch/ubicom32/include/asm/msgbuf.h
++ * Definition of msqid64_ds struct for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_MSGBUF_H
++#define _ASM_UBICOM32_MSGBUF_H
++
++/*
++ * The msqid64_ds structure for ubicom32 architecture.
++ * Note extra padding because this structure is passed back and forth
++ * between kernel and user space.
++ *
++ * Pad space is left for:
++ * - 64-bit time_t to solve y2038 problem
++ * - 2 miscellaneous 32-bit values
++ */
++
++struct msqid64_ds {
++ struct ipc64_perm msg_perm;
++ __kernel_time_t msg_stime; /* last msgsnd time */
++ unsigned long __unused1;
++ __kernel_time_t msg_rtime; /* last msgrcv time */
++ unsigned long __unused2;
++ __kernel_time_t msg_ctime; /* last change time */
++ unsigned long __unused3;
++ unsigned long msg_cbytes; /* current number of bytes on queue */
++ unsigned long msg_qnum; /* number of messages in queue */
++ unsigned long msg_qbytes; /* max number of bytes on queue */
++ __kernel_pid_t msg_lspid; /* pid of last msgsnd */
++ __kernel_pid_t msg_lrpid; /* last receive pid */
++ unsigned long __unused4;
++ unsigned long __unused5;
++};
++
++#endif /* _ASM_UBICOM32_MSGBUF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/mutex.h
+@@ -0,0 +1,41 @@
++/*
++ * arch/ubicom32/include/asm/mutex.h
++ * Generic mutex.h for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++/*
++ * Pull in the generic implementation for the mutex fastpath.
++ *
++ * TODO: implement optimized primitives instead, or leave the generic
++ * implementation in place, or pick the atomic_xchg() based generic
++ * implementation. (see asm-generic/mutex-xchg.h for details)
++ */
++
++#ifndef _ASM_UBICOM32_MUTEX_H
++#define _ASM_UBICOM32_MUTEX_H
++
++#include <asm-generic/mutex-dec.h>
++
++#endif /* _ASM_UBICOM32_MUTEX_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/namei.h
+@@ -0,0 +1,38 @@
++/*
++ * arch/ubicom32/include/asm/namei.h
++ * Definition of __emul_prefix() for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_NAMEI_H
++#define _ASM_UBICOM32_NAMEI_H
++
++/* This dummy routine maybe changed to something useful
++ * for /usr/gnemul/ emulation stuff.
++ * Look at asm-sparc/namei.h for details.
++ */
++
++#define __emul_prefix() NULL
++
++#endif /* _ASM_UBICOM32_NAMEI_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ocm-alloc.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/ocm-alloc.h
++ * Ubicom32 architecture specific ocm definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_OCM_ALLOC_H
++#define _ASM_UBICOM32_OCM_ALLOC_H
++
++
++extern void *ocm_inst_alloc(size_t size, pid_t pid);
++extern int ocm_free(const void *ptr);
++extern int ocm_inst_free(const void *ptr);
++
++#endif /* _ASM_UBICOM32_OCM_ALLOC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ocm_size.h
+@@ -0,0 +1,2 @@
++#define APP_OCM_CODE_SIZE (0x3ffc2e00-0x3ffc0000)
++#define APP_OCM_DATA_SIZE (0x3ffd3500-0x3ffc8000)
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ocm_text.lds.inc
+@@ -0,0 +1,175 @@
++/*
++ * arch/ubicom32/include/asm/ocm_text.lds.inc
++ * <TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++*(.text.do_csum)
++*(.text.tcp_packet)
++*(.text.ipt_do_table)
++*(.text.nf_conntrack_in)
++*(.text.ip_forward)
++*(.text.dev_queue_xmit)
++*(.text.netif_receive_skb)
++*(.text.ip_route_input)
++*(.text.ip_finish_output)
++*(.text.nf_iterate)
++*(.text.__hash_conntrack)
++*(.text.memset)
++*(.text.memcpy)
++*(.text.ip_rcv)
++*(.text.__nf_conntrack_find)
++*(.text.dev_hard_start_xmit)
++*(.text.vlan_dev_hard_start_xmit)
++*(.text.vlan_dev_hard_header)
++*(.text.__nf_ct_refresh_acct)
++*(.text.tcp_error)
++*(.text.pfifo_fast_enqueue)
++*(.text.ipv4_confirm)
++*(.text.ip_output)
++*(.text.neigh_connected_output)
++*(.text.nf_hook_slow)
++*(.text.nf_nat_packet)
++*(.text.local_bh_enable)
++*(.text.pfifo_fast_dequeue)
++*(.text.ubi32_eth_receive)
++*(.text.nf_nat_fn)
++*(.text.skb_checksum)
++*(.text.memmove)
++*(.text.ubi32_eth_tx_done)
++*(.text.eth_header)
++*(.text.skb_release_data)
++*(.text.nf_conntrack_find_get)
++*(.text.process_backlog)
++*(.text.vlan_skb_recv)
++*(.text.ip_rcv_finish)
++*(.text.__qdisc_run)
++*(.text.skb_push)
++*(.text.eth_type_trans)
++*(.text.__alloc_skb)
++*(.text.netif_rx)
++*(.text.nf_ip_checksum)
++*(.text.__skb_checksum_complete_head)
++*(.text.ipv4_conntrack_defrag)
++*(.text.tcp_pkt_to_tuple)
++*(.text.kfree)
++*(.text.tcp_manip_pkt)
++*(.text.skb_put)
++*(.text.nf_ct_get_tuple)
++*(.text.__kmalloc)
++*(.text.ubi32_eth_start_xmit)
++*(.text.free_block)
++*(.text.ipt_hook)
++*(.text.kmem_cache_free)
++*(.text.skb_pull_rcsum)
++*(.text.cache_alloc_refill)
++*(.text.skb_release_head_state)
++*(.text.manip_pkt)
++*(.text.ip_sabotage_in)
++*(.text.ip_forward_finish)
++*(.text.kmem_cache_alloc)
++*(.text.local_bh_disable)
++*(.text.ipv4_pkt_to_tuple)
++*(.text.inet_proto_csum_replace4)
++*(.text.__nf_ct_l4proto_find)
++*(.text.csum_partial)
++*(.text.neigh_resolve_output)
++*(.text.__kfree_skb)
++*(.text.kfree_skb)
++*(.text.__find_vlan_dev)
++*(.text.ldsr_ctxsw_thread)
++*(.text.__do_IRQ)
++*(.text.skb_pull)
++*(.text.ipv4_invert_tuple)
++*(.text.nf_ct_invert_tuplepr)
++*(.text.skb_make_writable)
++*(.text.ipv4_get_l4proto)
++*(.text.handle_IRQ_event)
++*(.text.net_rx_action)
++*(.text.__do_softirq)
++*(.text.nf_nat_in)
++*(.text.note_interrupt)
++*(.text.ipv4_conntrack_in)
++*(.text.dst_release)
++*(.text.tasklet_action)
++*(.text.nf_nat_out)
++*(.text.nf_ct_invert_tuple)
++*(.text.do_IRQ)
++*(.text.__tasklet_schedule)
++*(.text.__skb_checksum_complete)
++*(.text.ubi32_eth_interrupt)
++*(.text.dev_kfree_skb_any)
++*(.text.ret_from_interrupt_to_kernel)
++*(.text.preemptive_context_save)
++*(.text.irq_ack_vector)
++*(.text.update_wall_time)
++*(.text.ldsr_thread)
++*(.text.irq_exit)
++*(.text.ubi32_eth_do_tasklet)
++*(.text.__napi_schedule)
++*(.text.idle_cpu)
++*(.text.run_timer_softirq)
++*(.text.ldsr_mask_vector)
++*(.text.irq_enter)
++*(.text.ldsr_get_lsb)
++*(.text.ldsr_unmask_vector)
++*(.text.ip_fast_csum)
++*(.text.hrtimer_run_queues)
++*(.text.tcp_invert_tuple)
++*(.text.T___705)
++*(.text.run_posix_cpu_timers)
++*(.text.free_hot_cold_page)
++*(.text.lock_timer_base)
++*(.text.calc_delta_mine)
++*(.text.slab_destroy)
++*(.text.rcu_pending)
++*(.text.scheduler_tick)
++*(.text.hrtimer_run_pending)
++*(.text.do_softirq)
++*(.text.del_timer)
++*(.text.irq_end_vector)
++*(.text.pci_read_u32)
++*(.text.udivmodsi4)
++*(.text.memcmp)
++*(.text.memset)
++*(.text.__slab_alloc)
++*(.text.br_handle_frame)
++*(.text.br_fdb_update)
++*(.text.__br_fdb_get)
++*(.text.br_forward)
++*(.text.br_handle_frame_finish)
++*(.text.pci_write_u32)
++*(.text.kmem_freepages)
++*(.text.br_dev_queue_push_xmit)
++*(.text.ioread32)
++*(.text.next_zones_zonelist)
++*(.text.ubi32_pci_read_u32)
++*(.text.zone_watermark_ok)
++*(.text.__rmqueue_smallest)
++*(.text.ubi32_eth_napi_poll)
++*(.text.ubi32_pci_write_u32)
++*(.text.ubi32_pci_read_u32)
++*(.text._local_bh_enable)
++*(.text._local_bh_disable)
++*(.text.get_slab)
+--- /dev/null
++++ b/arch/ubicom32/include/asm/page.h
+@@ -0,0 +1,106 @@
++/*
++ * arch/ubicom32/include/asm/page.h
++ * Memory page related operations and definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PAGE_H
++#define _ASM_UBICOM32_PAGE_H
++
++/* PAGE_SHIFT determines the page size */
++
++#define PAGE_SHIFT 12
++#define PAGE_SIZE (1 << PAGE_SHIFT)
++#define PAGE_MASK (~(PAGE_SIZE-1))
++
++#include <asm/setup.h>
++
++#ifndef __ASSEMBLY__
++
++#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
++#define free_user_page(page, addr) free_page(addr)
++
++#define clear_page(page) memset((page), 0, PAGE_SIZE)
++#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
++
++#define clear_user_page(page, vaddr, pg) clear_page(page)
++#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
++
++#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
++ alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
++#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
++
++/*
++ * These are used to make use of C type-checking..
++ */
++typedef struct { unsigned long pte; } pte_t;
++typedef struct { unsigned long pmd[16]; } pmd_t;
++typedef struct { unsigned long pgd; } pgd_t;
++typedef struct { unsigned long pgprot; } pgprot_t;
++typedef struct page *pgtable_t;
++
++#define pte_val(x) ((x).pte)
++#define pmd_val(x) ((&x)->pmd[0])
++#define pgd_val(x) ((x).pgd)
++#define pgprot_val(x) ((x).pgprot)
++
++#define __pte(x) ((pte_t) { (x) } )
++#define __pmd(x) ((pmd_t) { (x) } )
++#define __pgd(x) ((pgd_t) { (x) } )
++#define __pgprot(x) ((pgprot_t) { (x) } )
++
++extern unsigned long memory_start;
++extern unsigned long memory_end;
++
++#endif /* !__ASSEMBLY__ */
++
++#include <asm/page_offset.h>
++
++#define PAGE_OFFSET (PAGE_OFFSET_RAW)
++
++#ifndef __ASSEMBLY__
++
++#define __pa(vaddr) virt_to_phys((void *)(vaddr))
++#define __va(paddr) phys_to_virt((unsigned long)(paddr))
++
++#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
++#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
++
++#define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
++#define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
++
++#define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn))
++#define page_to_pfn(page) virt_to_pfn(page_to_virt(page))
++#define pfn_valid(pfn) ((pfn) < max_mapnr)
++
++#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
++ ((void *)(kaddr) < (void *)memory_end))
++
++#endif /* __ASSEMBLY__ */
++
++#ifdef __KERNEL__
++#include <asm-generic/page.h>
++#endif
++
++#endif /* _ASM_UBICOM32_PAGE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/page_offset.h
+@@ -0,0 +1,35 @@
++/*
++ * arch/ubicom32/include/asm/page_offset.h
++ * Definition of PAGE_OFFSET_RAW for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_PAGE_OFFSET_H
++#define _ASM_UBICOM32_PAGE_OFFSET_H
++
++/* This handles the memory map.. */
++#define PAGE_OFFSET_RAW 0x3ffc0000
++
++#endif /* _ASM_UBICOM32_PAGE_OFFSET_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/param.h
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/include/asm/param.h
++ * Definition of miscellaneous constants, including HZ.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PARAM_H
++#define _ASM_UBICOM32_PARAM_H
++
++#ifdef __KERNEL__
++#define HZ CONFIG_HZ
++#define USER_HZ HZ
++#define CLOCKS_PER_SEC (USER_HZ)
++#endif
++
++#ifndef HZ
++#define HZ 100
++#endif
++
++#define EXEC_PAGESIZE 4096
++
++#ifndef NOGROUP
++#define NOGROUP (-1)
++#endif
++
++#define MAXHOSTNAMELEN 64 /* max length of hostname */
++
++#endif /* _ASM_UBICOM32_PARAM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/pci.h
+@@ -0,0 +1,210 @@
++/*
++ * arch/ubicom32/include/asm/pci.h
++ * Definitions of PCI operations for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PCI_H
++#define _ASM_UBICOM32_PCI_H
++
++#include <asm/io.h>
++
++/* The PCI address space does equal the physical memory
++ * address space. The networking and block device layers use
++ * this boolean for bounce buffer decisions.
++ */
++#define PCI_DMA_BUS_IS_PHYS (1)
++
++
++
++/*
++ * Perform a master read/write to the PCI bus.
++ * These functions return a PCI_RESP_xxx code.
++ */
++extern u8 pci_read_u32(u8 pci_cmd, u32 address, u32 *data);
++extern u8 pci_write_u32(u8 pci_cmd, u32 address, u32 data);
++extern u8 pci_read_u16(u8 pci_cmd, u32 address, u16 *data);
++extern u8 pci_write_u16(u8 pci_cmd, u32 address, u16 data);
++extern u8 pci_read_u8(u8 pci_cmd, u32 address, u8 *data);
++extern u8 pci_write_u8(u8 pci_cmd, u32 address, u8 data);
++
++
++#define PCIBIOS_MIN_IO 0x100
++#define PCIBIOS_MIN_MEM 0x10000000
++
++#define pcibios_assign_all_busses() 0
++#define pcibios_scan_all_fns(a, b) 0
++extern void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
++ struct resource *res);
++
++extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
++ struct pci_bus_region *region);
++
++struct pci_sys_data;
++struct pci_bus;
++
++struct hw_pci {
++ struct list_head buses;
++ int nr_controllers;
++ int (*setup)(int nr, struct pci_sys_data *);
++ struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
++ void (*preinit)(void);
++ void (*postinit)(void);
++ u8 (*swizzle)(struct pci_dev *dev, u8 *pin);
++ int (*map_irq)(struct pci_dev *dev, u8 slot, u8 pin);
++};
++
++/*
++ * Per-controller structure
++ */
++struct pci_sys_data {
++ struct list_head node;
++ int busnr; /* primary bus number */
++ u64 mem_offset; /* bus->cpu memory mapping offset */
++ unsigned long io_offset; /* bus->cpu IO mapping offset */
++ struct pci_bus *bus; /* PCI bus */
++ struct resource *resource[3]; /* Primary PCI bus resources */
++ /* Bridge swizzling */
++ u8 (*swizzle)(struct pci_dev *, u8 *);
++ /* IRQ mapping */
++ int (*map_irq)(struct pci_dev *, u8, u8);
++ struct hw_pci *hw;
++};
++
++static inline struct resource *
++pcibios_select_root(struct pci_dev *pdev, struct resource *res)
++{
++ struct resource *root = NULL;
++
++ if (res->flags & IORESOURCE_IO)
++ root = &ioport_resource;
++ if (res->flags & IORESOURCE_MEM)
++ root = &iomem_resource;
++
++ return root;
++}
++
++static inline void pcibios_set_master(struct pci_dev *dev)
++{
++ /* No special bus mastering setup handling */
++}
++#define HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_SIZE 1
++#define HAVE_ARCH_PCI_SET_DMA_SEGMENT_BOUNDARY 1
++
++#ifdef CONFIG_PCI
++static inline void * pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
++ dma_addr_t *dma_handle)
++{
++ void *vaddr = kmalloc(size, GFP_KERNEL);
++ if(vaddr != NULL) {
++ *dma_handle = virt_to_phys(vaddr);
++ }
++ return vaddr;
++}
++
++static inline int pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask)
++{
++ return 1;
++}
++
++static inline void pci_free_consistent(struct pci_dev *hwdev, size_t size,
++ void *cpu_addr, dma_addr_t dma_handle)
++{
++ kfree(cpu_addr);
++ return;
++}
++
++static inline dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr,
++ size_t size, int direction)
++{
++ return virt_to_phys(ptr);
++}
++
++static inline void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
++ size_t size, int direction)
++{
++ return;
++}
++
++static inline dma_addr_t
++pci_map_page(struct pci_dev *hwdev, struct page *page,
++ unsigned long offset, size_t size, int direction)
++{
++ return pci_map_single(hwdev, page_address(page) + offset, size, (int)direction);
++}
++
++static inline void
++pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
++ size_t size, int direction)
++{
++ pci_unmap_single(hwdev, dma_address, size, direction);
++}
++
++static inline int
++pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
++ int nents, int direction)
++{
++ return nents;
++}
++
++static inline void
++pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
++ int nents, int direction)
++{
++}
++
++static inline void
++pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg,
++ int nelems, int direction)
++{
++}
++
++static inline void
++pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg,
++ int nelems, int direction)
++{
++}
++
++static inline void
++pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle,
++ size_t size, int direction)
++{
++}
++
++static inline void
++pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle,
++ size_t size, int direction)
++{
++}
++
++static inline int
++pci_dma_mapping_error(struct pci_dev *hwdev, dma_addr_t dma_addr)
++{
++ return dma_addr == 0;
++}
++extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
++extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
++#endif
++
++#endif /* _ASM_UBICOM32_PCI_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/percpu.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/percpu.h
++ * Generic percpu.h for the Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PERCPU_H
++#define _ASM_UBICOM32_PERCPU_H
++
++#include <asm-generic/percpu.h>
++
++#endif /* _ASM_UBICOM32_PERCPU_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/pgalloc.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/pgalloc.h
++ * Page table allocation definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PGALLOC_H
++#define _ASM_UBICOM32_PGALLOC_H
++
++#include <linux/mm.h>
++#include <asm/setup.h>
++
++#define check_pgt_cache() do { } while (0)
++
++#endif /* _ASM_UBICOM32_PGALLOC_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/pgtable.h
+@@ -0,0 +1,124 @@
++/*
++ * arch/ubicom32/include/asm/pgtable.h
++ * Ubicom32 pseudo page table definitions and operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004 Microtronix Datacom Ltd
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ * and various works, Alpha, ix86, M68K, Sparc, ...et al
++ */
++#ifndef _ASM_UBICOM32_PGTABLE_H
++#define _ASM_UBICOM32_PGTABLE_H
++
++#include <asm-generic/4level-fixup.h>
++
++//vic - this bit copied from m68knommu version
++#include <asm/setup.h>
++#include <asm/io.h>
++#include <linux/sched.h>
++
++typedef pte_t *pte_addr_t;
++
++#define pgd_present(pgd) (1) /* pages are always present on NO_MM */
++#define pgd_none(pgd) (0)
++#define pgd_bad(pgd) (0)
++#define pgd_clear(pgdp)
++#define kern_addr_valid(addr) (1)
++#define pmd_offset(a, b) ((void *)0)
++
++#define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */
++#define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */
++#define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */
++#define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */
++#define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */
++//vic - this bit copied from m68knommu version
++
++extern void paging_init(void);
++#define swapper_pg_dir ((pgd_t *) 0)
++
++#define __swp_type(x) (0)
++#define __swp_offset(x) (0)
++#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) })
++#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
++#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
++
++/*
++ * pgprot_noncached() is only for infiniband pci support, and a real
++ * implementation for RAM would be more complicated.
++ */
++#define pgprot_noncached(prot) (prot)
++
++static inline int pte_file(pte_t pte) { return 0; }
++
++/*
++ * ZERO_PAGE is a global shared page that is always zero: used
++ * for zero-mapped memory areas etc..
++ */
++#define ZERO_PAGE(vaddr) (virt_to_page(0))
++
++extern unsigned int kobjsize(const void *objp);
++extern int is_in_rom(unsigned long);
++
++/*
++ * No page table caches to initialise
++ */
++#define pgtable_cache_init() do { } while (0)
++
++#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
++ remap_pfn_range(vma, vaddr, pfn, size, prot)
++
++extern inline void flush_cache_mm(struct mm_struct *mm)
++{
++}
++
++extern inline void flush_cache_range(struct mm_struct *mm,
++ unsigned long start,
++ unsigned long end)
++{
++}
++
++/* Push the page at kernel virtual address and clear the icache */
++extern inline void flush_page_to_ram (unsigned long address)
++{
++}
++
++/* Push n pages at kernel virtual address and clear the icache */
++extern inline void flush_pages_to_ram (unsigned long address, int n)
++{
++}
++
++/*
++ * All 32bit addresses are effectively valid for vmalloc...
++ * Sort of meaningless for non-VM targets.
++ */
++#define VMALLOC_START 0
++#define VMALLOC_END 0xffffffff
++
++#define arch_enter_lazy_mmu_mode() do {} while (0)
++#define arch_leave_lazy_mmu_mode() do {} while (0)
++#define arch_flush_lazy_mmu_mode() do {} while (0)
++#define arch_enter_lazy_cpu_mode() do {} while (0)
++#define arch_leave_lazy_cpu_mode() do {} while (0)
++#define arch_flush_lazy_cpu_mode() do {} while (0)
++
++#endif /* _ASM_UBICOM32_PGTABLE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/poll.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/poll.h
++ * Ubicom32 specific poll() related flags definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_POLL_H
++#define _ASM_UBICOM32_POLL_H
++
++#define POLLWRNORM POLLOUT
++#define POLLWRBAND 0x0100
++
++#include <asm-generic/poll.h>
++
++#endif /* _ASM_UBICOM32_POLL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/posix_types.h
+@@ -0,0 +1,93 @@
++/*
++ * arch/ubicom32/include/asm/posix_types.h
++ * Ubicom32 architecture posix types.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004 Microtronix Datacom Ltd
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef __ARCH_UBICOM32_POSIX_TYPES_H
++#define __ARCH_UBICOM32_POSIX_TYPES_H
++
++/*
++ * This file is generally used by user-level software, so you need to
++ * be a little careful about namespace pollution etc. Also, we cannot
++ * assume GCC is being used.
++ */
++
++typedef unsigned long __kernel_ino_t;
++typedef unsigned short __kernel_mode_t;
++typedef unsigned short __kernel_nlink_t;
++typedef long __kernel_off_t;
++typedef int __kernel_pid_t;
++typedef unsigned short __kernel_ipc_pid_t;
++typedef unsigned short __kernel_uid_t;
++typedef unsigned short __kernel_gid_t;
++typedef unsigned int __kernel_size_t;
++typedef int __kernel_ssize_t;
++typedef int __kernel_ptrdiff_t;
++typedef long __kernel_time_t;
++typedef long __kernel_suseconds_t;
++typedef long __kernel_clock_t;
++typedef int __kernel_timer_t;
++typedef int __kernel_clockid_t;
++typedef int __kernel_daddr_t;
++typedef char * __kernel_caddr_t;
++typedef unsigned short __kernel_uid16_t;
++typedef unsigned short __kernel_gid16_t;
++typedef unsigned int __kernel_uid32_t;
++typedef unsigned int __kernel_gid32_t;
++
++typedef unsigned short __kernel_old_uid_t;
++typedef unsigned short __kernel_old_gid_t;
++typedef unsigned short __kernel_old_dev_t;
++
++#ifdef __GNUC__
++typedef long long __kernel_loff_t;
++#endif
++
++typedef struct {
++#if defined(__KERNEL__) || defined(__USE_ALL)
++ int val[2];
++#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
++ int __val[2];
++#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
++} __kernel_fsid_t;
++
++#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
++
++#undef __FD_SET
++#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
++
++#undef __FD_CLR
++#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
++
++#undef __FD_ISSET
++#define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
++
++#undef __FD_ZERO
++#define __FD_ZERO(fdsetp) (memset (fdsetp, 0, sizeof(*(fd_set *)fdsetp)))
++
++#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
++
++#endif
+--- /dev/null
++++ b/arch/ubicom32/include/asm/processor.h
+@@ -0,0 +1,163 @@
++/*
++ * arch/ubicom32/include/asm/processor.h
++ * Thread related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1995 Hamish Macdonald
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_PROCESSOR_H
++#define _ASM_UBICOM32_PROCESSOR_H
++
++/*
++ * Default implementation of macro that returns current
++ * instruction pointer ("program counter").
++ */
++#define current_text_addr() ({ __label__ _l; _l: &&_l;})
++
++#include <linux/compiler.h>
++#include <linux/threads.h>
++#include <asm/types.h>
++#include <asm/segment.h>
++#include <asm/fpu.h>
++#include <asm/ptrace.h>
++#include <asm/current.h>
++#include <asm/thread_info.h>
++
++#if defined(CONFIG_UBICOM32_V3)
++ #define CPU "IP5K"
++#endif
++#if defined(CONFIG_UBICOM32_V4)
++ #define CPU "IP7K"
++#endif
++#ifndef CPU
++ #define CPU "UNKNOWN"
++#endif
++
++/*
++ * User space process size: 1st byte beyond user address space.
++ */
++extern unsigned long memory_end;
++#define TASK_SIZE (memory_end)
++
++/*
++ * This decides where the kernel will search for a free chunk of vm
++ * space during mmap's. We won't be using it
++ */
++#define TASK_UNMAPPED_BASE 0
++
++/*
++ * This is the structure where we are going to save callee-saved registers.
++ * A5 is the return address, A7 is the stack pointer, A6 is the frame
++ * pointer. This is the frame that is created because of switch_to. This
++ * is not the frame due to interrupt preemption or because of syscall entry.
++ */
++
++struct thread_struct {
++ unsigned long d10; /* D10 */
++ unsigned long d11; /* D11 */
++ unsigned long d12; /* D12 */
++ unsigned long d13; /* D13 */
++ unsigned long a1; /* A1 */
++ unsigned long a2; /* A2 */
++ unsigned long a5; /* A5 return address. */
++ unsigned long a6; /* A6 */
++ unsigned long sp; /* A7 kernel stack pointer. */
++};
++
++#define INIT_THREAD { \
++ 0, 0, 0, 0, 0, 0, 0, 0, \
++ sizeof(init_stack) + (unsigned long) init_stack - 8, \
++}
++
++/*
++ * Do necessary setup to start up a newly executed thread.
++ *
++ * pass the data segment into user programs if it exists,
++ * it can't hurt anything as far as I can tell
++ */
++/*
++ * Do necessary setup to start up a newly executed thread.
++ */
++#define start_thread(regs, new_pc, new_sp) \
++ do { \
++ regs->pc = new_pc & ~3; \
++ regs->an[5] = new_pc & ~3; \
++ regs->an[7] = new_sp; \
++ regs->nesting_level = -1; \
++ regs->frame_type = UBICOM32_FRAME_TYPE_NEW_THREAD; \
++ regs->thread_type = NORMAL_THREAD; \
++ } while(0)
++
++/* Forward declaration, a strange C thing */
++struct task_struct;
++
++/* Free all resources held by a thread. */
++static inline void release_thread(struct task_struct *dead_task)
++{
++}
++
++/* Prepare to copy thread state - unlazy all lazy status */
++#define prepare_to_copy(tsk) do { } while (0)
++
++extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
++
++/*
++ * Free current thread data structures etc..
++ */
++static inline void exit_thread(void)
++{
++}
++
++unsigned long thread_saved_pc(struct task_struct *tsk);
++unsigned long get_wchan(struct task_struct *p);
++
++#define KSTK_EIP(tsk) (tsk->thread.a5)
++#define KSTK_ESP(tsk) (tsk->thread.sp)
++
++#define cpu_relax() barrier()
++
++extern void processor_init(void);
++extern unsigned int processor_timers(void);
++extern unsigned int processor_threads(void);
++extern unsigned int processor_frequency(void);
++extern int processor_interrupts(unsigned int *int0, unsigned int *int1);
++extern int processor_ocm(void **socm, void **eocm);
++extern int processor_dram(void **sdram, void **edram);
++
++#define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long))
++#define KSTK_TOP(info) \
++({ \
++ unsigned long *__ptr = (unsigned long *)(info); \
++ (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \
++})
++
++#define task_pt_regs(task) \
++({ \
++ struct pt_regs *__regs__; \
++ __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
++ __regs__ - 1; \
++})
++
++#endif /* _ASM_UBICOM32_PROCESSOR_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ptrace.h
+@@ -0,0 +1,177 @@
++/*
++ * arch/ubicom32/include/asm/ptrace.h
++ * Ubicom32 architecture ptrace support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_PTRACE_H
++#define _ASM_UBICOM32_PTRACE_H
++
++#ifndef __ASSEMBLY__
++
++/*
++ * We use hard coded constants because this is shared with user
++ * space and the values are NOT allowed to change. Only fields
++ * that are intended to be exposed get values.
++ */
++#define PT_D0 0
++#define PT_D1 4
++#define PT_D2 8
++#define PT_D3 12
++#define PT_D4 16
++#define PT_D5 20
++#define PT_D6 24
++#define PT_D7 28
++#define PT_D8 32
++#define PT_D9 36
++#define PT_D10 40
++#define PT_D11 44
++#define PT_D12 48
++#define PT_D13 52
++#define PT_D14 56
++#define PT_D15 60
++#define PT_A0 64
++#define PT_A1 68
++#define PT_A2 72
++#define PT_A3 76
++#define PT_A4 80
++#define PT_A5 84
++#define PT_A6 88
++#define PT_A7 92
++#define PT_SP 92
++#define PT_ACC0HI 96
++#define PT_ACC0LO 100
++#define PT_MAC_RC16 104
++#define PT_ACC1HI 108
++#define PT_ACC1LO 112
++#define PT_SOURCE3 116
++#define PT_INST_CNT 120
++#define PT_CSR 124
++#define PT_DUMMY_UNUSED 128
++#define PT_INT_MASK0 132
++#define PT_INT_MASK1 136
++#define PT_TRAP_CAUSE 140
++#define PT_PC 144
++#define PT_ORIGINAL_D0 148
++#define PT_FRAME_TYPE 152
++
++/*
++ * The following 'registers' are not registers at all but are used
++ * locate the relocated sections.
++ */
++#define PT_TEXT_ADDR 200
++#define PT_TEXT_END_ADDR 204
++#define PT_DATA_ADDR 208
++#define PT_EXEC_FDPIC_LOADMAP 212
++#define PT_INTERP_FDPIC_LOADMAP 216
++
++/*
++ * This struct defines the way the registers are stored on the
++ * stack during a system call.
++ */
++enum thread_type {
++ NORMAL_THREAD,
++ KERNEL_THREAD,
++};
++
++#define UBICOM32_FRAME_TYPE_SYSCALL -1 /* System call frame */
++#define UBICOM32_FRAME_TYPE_INVALID 0 /* Invalid frame, no longer in use */
++#define UBICOM32_FRAME_TYPE_INTERRUPT 1 /* Interrupt frame */
++#define UBICOM32_FRAME_TYPE_TRAP 2 /* Trap frame */
++#define UBICOM32_FRAME_TYPE_SIGTRAMP 3 /* Signal trampoline frame. */
++#define UBICOM32_FRAME_TYPE_NEW_THREAD 4 /* New Thread. */
++
++struct pt_regs {
++ /*
++ * Data Registers
++ */
++ unsigned long dn[16];
++
++ /*
++ * Address Registers
++ */
++ unsigned long an[8];
++
++ /*
++ * Per thread misc registers.
++ */
++ unsigned long acc0[2];
++ unsigned long mac_rc16;
++ unsigned long acc1[2];
++ unsigned long source3;
++ unsigned long inst_cnt;
++ unsigned long csr;
++ unsigned long dummy_unused;
++ unsigned long int_mask0;
++ unsigned long int_mask1;
++ unsigned long trap_cause;
++ unsigned long pc;
++ unsigned long original_dn_0;
++
++ /*
++ * Frame type. Syscall frames are -1. For other types look above.
++ */
++ unsigned long frame_type;
++
++ /*
++ * These fields are not exposed to ptrace.
++ */
++ unsigned long previous_pc;
++ long nesting_level; /* When the kernel in in user space this
++ * will be -1. */
++ unsigned long thread_type; /* This indicates if this is a kernel
++ * thread. */
++};
++
++/*
++ * This is the extended stack used by signal handlers and the context
++ * switcher: it's pushed after the normal "struct pt_regs".
++ */
++struct switch_stack {
++ unsigned long dummy;
++};
++
++#ifdef __KERNEL__
++
++/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
++#define PTRACE_GETREGS 12
++#define PTRACE_SETREGS 13
++
++#ifndef PS_S
++#define PS_S (0x2000)
++#define PS_M (0x1000)
++#endif
++
++extern int __user_mode(unsigned long sp);
++
++#define user_mode(regs) (__user_mode((regs->an[7])))
++#define user_stack(regs) ((regs)->an[7])
++#define instruction_pointer(regs) ((regs)->pc)
++#define profile_pc(regs) instruction_pointer(regs)
++extern void show_regs(struct pt_regs *);
++#endif /* __KERNEL__ */
++
++#endif /* __ASSEMBLY__ */
++
++#endif /* _ASM_UBICOM32_PTRACE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/range-protect-asm.h
+@@ -0,0 +1,91 @@
++/*
++ * arch/ubicom32/include/asm/range-protect-asm.h
++ * Assembly macros for enabling memory protection.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_RANGE_PROTECT_ASM_H
++#define _ASM_UBICOM32_RANGE_PROTECT_ASM_H
++
++#if defined(__ASSEMBLY__)
++
++#include <asm/thread-asm.h>
++
++/*
++ * You should only use the enable/disable ranges when you have the atomic lock,
++ * if you do not there will be problems.
++ */
++
++/*
++ * enable_kernel_ranges
++ * Enable the kernel ranges (disabling protection) for thread,
++ * where thread == (1 << thread number)
++ */
++.macro enable_kernel_ranges thread
++#ifdef CONFIG_PROTECT_KERNEL
++ or.4 I_RANGE0_EN, I_RANGE0_EN, \thread /* Enable Range Register */
++ or.4 D_RANGE0_EN, D_RANGE0_EN, \thread
++ or.4 D_RANGE1_EN, D_RANGE1_EN, \thread
++#endif
++.endm
++
++/*
++ * enable_kernel_ranges_for_current
++ * Enable the kernel ranges (disabling protection) for this thread
++ */
++.macro enable_kernel_ranges_for_current scratch_reg
++#ifdef CONFIG_PROTECT_KERNEL
++ thread_get_self_mask \scratch_reg
++ enable_kernel_ranges \scratch_reg
++#endif
++.endm
++
++/*
++ * disable_kernel_ranges
++ * Disables the kernel ranges (enabling protection) for thread
++ * where thread == (1 << thread number)
++ */
++.macro disable_kernel_ranges thread
++#ifdef CONFIG_PROTECT_KERNEL
++ not.4 \thread, \thread
++ and.4 I_RANGE0_EN, I_RANGE0_EN, \thread /* Disable Range Register */
++ and.4 D_RANGE0_EN, D_RANGE0_EN, \thread
++ and.4 D_RANGE1_EN, D_RANGE1_EN, \thread
++#endif
++.endm
++
++/*
++ * disable_kernel_ranges_for_current
++ * Disable kernel ranges (enabling protection) for this thread
++ */
++.macro disable_kernel_ranges_for_current scratch_reg
++#ifdef CONFIG_PROTECT_KERNEL
++ thread_get_self_mask \scratch_reg
++ disable_kernel_ranges \scratch_reg
++#endif
++.endm
++#endif
++
++#endif /* _ASM_UBICOM32_RANGE_PROTECT_ASM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/range-protect.h
+@@ -0,0 +1,62 @@
++/*
++ * arch/ubicom32/include/asm/range-protect.h
++ * Assembly macros declared in C for enabling memory protection.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_RANGE_PROTECT_H
++#define _ASM_UBICOM32_RANGE_PROTECT_H
++
++#if !defined(__ASSEMBLY__)
++#include <asm/thread.h>
++/*
++ * The following macros should be the identical to the ones in
++ * range-protect-asm.h
++ *
++ * You should only use the enable/disable ranges when you have the atomic lock,
++ * if you do not there will be problems.
++ */
++
++/*
++ * enable_kernel_ranges
++ * Enable the kernel ranges (disabling protection) for thread,
++ * where thread == (1 << thread number)
++ */
++asm (
++ ".macro enable_kernel_ranges thread \n\t"
++#ifdef CONFIG_PROTECT_KERNEL
++ " or.4 I_RANGE0_EN, I_RANGE0_EN, \\thread \n\t" /* Enable Range Register */
++ " or.4 D_RANGE0_EN, D_RANGE0_EN, \\thread \n\t"
++ " or.4 D_RANGE1_EN, D_RANGE1_EN, \\thread \n\t"
++#endif
++ ".endm \n\t"
++);
++
++#else /* __ASSEMBLY__ */
++
++#include <asm/range-protect-asm.h>
++
++#endif
++#endif /* _ASM_UBICOM32_RANGE_PROTECT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/resource.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/resource.h
++ * Generic definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_RESOURCE_H
++#define _ASM_UBICOM32_RESOURCE_H
++
++#include <asm-generic/resource.h>
++
++#endif /* _ASM_UBICOM32_RESOURCE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ring_tio.h
+@@ -0,0 +1,42 @@
++/*
++ * arch/ubicom32/include/asm/ring_tio.h
++ * Ubicom32 architecture Ring TIO definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_RING_TIO_H
++#define _ASM_UBICOM32_RING_TIO_H
++
++#include <asm/devtree.h>
++
++#define RING_TIO_NODE_VERSION 2
++
++/*
++ * Devtree node for ring
++ */
++struct ring_tio_node {
++ struct devtree_node dn;
++
++ u32_t version;
++ void *regs;
++};
++
++extern void ring_tio_init(const char *node_name);
++
++#endif /* _ASM_UBICOM32_RING_TIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/scatterlist.h
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/include/asm/scatterlist.h
++ * Definitions of struct scatterlist for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SCATTERLIST_H
++#define _ASM_UBICOM32_SCATTERLIST_H
++
++#include <linux/mm.h>
++#include <asm/types.h>
++
++struct scatterlist {
++#ifdef CONFIG_DEBUG_SG
++ unsigned long sg_magic;
++#endif
++ unsigned long page_link;
++ unsigned int offset;
++ dma_addr_t dma_address;
++ unsigned int length;
++};
++
++#define sg_dma_address(sg) ((sg)->dma_address)
++#define sg_dma_len(sg) ((sg)->length)
++
++#define ISA_DMA_THRESHOLD (0xffffffff)
++
++#endif /* _ASM_UBICOM32_SCATTERLIST_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sd_tio.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/sd_tio.h
++ * SD TIO definitions
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_SD_TIO_H
++#define _ASM_UBICOM32_SD_TIO_H
++
++#include <asm/devtree.h>
++
++/*
++ * Devtree node for SD
++ */
++struct sd_tio_node {
++ struct devtree_node dn;
++ void *regs;
++};
++
++#endif /* _ASM_UBICOM32_SD_TIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sections.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/sections.h
++ * Generic sections.h definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SECTIONS_H
++#define _ASM_UBICOM32_SECTIONS_H
++
++#include <asm-generic/sections.h>
++
++#endif /* _ASM_UBICOM32_SECTIONS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/segment.h
+@@ -0,0 +1,78 @@
++/*
++ * arch/ubicom32/include/asm/segment.h
++ * Memory segment definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SEGMENT_H
++#define _ASM_UBICOM32_SEGMENT_H
++
++/* define constants */
++/* Address spaces (FC0-FC2) */
++#define USER_DATA (1)
++#ifndef __USER_DS
++#define __USER_DS (USER_DATA)
++#endif
++#define USER_PROGRAM (2)
++#define SUPER_DATA (5)
++#ifndef __KERNEL_DS
++#define __KERNEL_DS (SUPER_DATA)
++#endif
++#define SUPER_PROGRAM (6)
++#define CPU_SPACE (7)
++
++#ifndef __ASSEMBLY__
++
++typedef struct {
++ unsigned long seg;
++} mm_segment_t;
++
++#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
++#define USER_DS MAKE_MM_SEG(__USER_DS)
++#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS)
++
++/*
++ * Get/set the SFC/DFC registers for MOVES instructions
++ */
++
++static inline mm_segment_t get_fs(void)
++{
++ return USER_DS;
++}
++
++static inline mm_segment_t get_ds(void)
++{
++ /* return the supervisor data space code */
++ return KERNEL_DS;
++}
++
++static inline void set_fs(mm_segment_t val)
++{
++}
++
++#define segment_eq(a,b) ((a).seg == (b).seg)
++
++#endif /* __ASSEMBLY__ */
++
++#endif /* _ASM_UBICOM32_SEGMENT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/semaphore.h
+@@ -0,0 +1,140 @@
++/*
++ * arch/ubicom32/include/asm/semaphore.h
++ * Interrupt-safe semaphores for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (C) Copyright 1996 Linus Torvalds
++ * m68k version by Andreas Schwab
++ * Copyright (C) 2004 Microtronix Datacom Ltd
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SEMAPHORE_H
++#define _ASM_UBICOM32_SEMAPHORE_H
++
++#define RW_LOCK_BIAS 0x01000000
++
++#ifndef __ASSEMBLY__
++
++#include <linux/linkage.h>
++#include <linux/wait.h>
++#include <linux/spinlock.h>
++#include <linux/rwsem.h>
++
++#include <asm/system.h>
++#include <asm/atomic.h>
++
++struct semaphore {
++ atomic_t count;
++ atomic_t waking;
++ wait_queue_head_t wait;
++};
++
++#define __SEMAPHORE_INITIALIZER(name, n) \
++{ \
++ .count = ATOMIC_INIT(n), \
++ .waking = ATOMIC_INIT(0), \
++ .wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
++}
++
++#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
++ struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
++
++#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
++#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
++
++static inline void sema_init (struct semaphore *sem, int val)
++{
++ *sem = (struct semaphore)__SEMAPHORE_INITIALIZER(*sem, val);
++}
++
++static inline void init_MUTEX (struct semaphore *sem)
++{
++ sema_init(sem, 1);
++}
++
++static inline void init_MUTEX_LOCKED (struct semaphore *sem)
++{
++ sema_init(sem, 0);
++}
++
++asmlinkage void __down_failed(void /* special register calling convention */);
++asmlinkage int __down_failed_interruptible(void /* params in registers */);
++asmlinkage int __down_failed_trylock(void /* params in registers */);
++asmlinkage void __up_wakeup(void /* special register calling convention */);
++
++asmlinkage void __down(struct semaphore * sem);
++asmlinkage int __down_interruptible(struct semaphore * sem);
++asmlinkage int __down_trylock(struct semaphore * sem);
++asmlinkage void __up(struct semaphore * sem);
++
++extern spinlock_t semaphore_wake_lock;
++
++/*
++ * This is ugly, but we want the default case to fall through.
++ * "down_failed" is a special asm handler that calls the C
++ * routine that actually waits.
++ */
++static inline void down(struct semaphore * sem)
++{
++ might_sleep();
++
++ if (atomic_dec_return(&sem->count) < 0)
++ __down(sem);
++}
++
++static inline int down_interruptible(struct semaphore * sem)
++{
++ int ret = 0;
++
++
++ might_sleep();
++
++ if(atomic_dec_return(&sem->count) < 0)
++ ret = __down_interruptible(sem);
++ return ret;
++}
++
++static inline int down_trylock(struct semaphore * sem)
++{
++ int ret = 0;
++
++ if (atomic_dec_return (&sem->count) < 0)
++ ret = __down_trylock(sem);
++ return ret;
++}
++
++/*
++ * Note! This is subtle. We jump to wake people up only if
++ * the semaphore was negative (== somebody was waiting on it).
++ * The default case (no contention) will result in NO
++ * jumps for both down() and up().
++ */
++static inline void up(struct semaphore * sem)
++{
++ if (atomic_inc_return(&sem->count) <= 0)
++ __up(sem);
++}
++
++#endif /* __ASSEMBLY__ */
++
++#endif /* _ASM_UBICOM32_SEMAPHORE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/semaphore-helper.h
+@@ -0,0 +1,109 @@
++/*
++ * arch/ubicom32/include/asm/semaphore-helper.h
++ * Semaphore related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SEMAPHORE_HELPER_H
++#define _ASM_UBICOM32_SEMAPHORE_HELPER_H
++
++/*
++ * SMP- and interrupt-safe semaphores helper functions.
++ *
++ * (C) Copyright 1996 Linus Torvalds
++ *
++ * m68k version by Andreas Schwab
++ */
++
++
++/*
++ * These two _must_ execute atomically wrt each other.
++ */
++static inline void wake_one_more(struct semaphore * sem)
++{
++ atomic_inc(&sem->waking);
++}
++
++static inline int waking_non_zero(struct semaphore *sem)
++{
++ int ret;
++ unsigned long flags;
++
++ spin_lock_irqsave(&semaphore_wake_lock, flags);
++ ret = 0;
++ if (atomic_read(&sem->waking) > 0) {
++ atomic_dec(&sem->waking);
++ ret = 1;
++ }
++ spin_unlock_irqrestore(&semaphore_wake_lock, flags);
++ return ret;
++}
++
++/*
++ * waking_non_zero_interruptible:
++ * 1 got the lock
++ * 0 go to sleep
++ * -EINTR interrupted
++ */
++static inline int waking_non_zero_interruptible(struct semaphore *sem,
++ struct task_struct *tsk)
++{
++ int ret;
++ unsigned long flags;
++
++ spin_lock_irqsave(&semaphore_wake_lock, flags);
++ ret = 0;
++ if (atomic_read(&sem->waking) > 0) {
++ atomic_dec(&sem->waking);
++ ret = 1;
++ } else if (signal_pending(tsk)) {
++ atomic_inc(&sem->count);
++ ret = -EINTR;
++ }
++ spin_unlock_irqrestore(&semaphore_wake_lock, flags);
++ return ret;
++}
++
++/*
++ * waking_non_zero_trylock:
++ * 1 failed to lock
++ * 0 got the lock
++ */
++static inline int waking_non_zero_trylock(struct semaphore *sem)
++{
++ int ret;
++ unsigned long flags;
++
++ spin_lock_irqsave(&semaphore_wake_lock, flags);
++ ret = 1;
++ if (atomic_read(&sem->waking) > 0) {
++ atomic_dec(&sem->waking);
++ ret = 0;
++ } else
++ atomic_inc(&sem->count);
++ spin_unlock_irqrestore(&semaphore_wake_lock, flags);
++ return ret;
++}
++
++#endif /* _ASM_UBICOM32_SEMAPHORE_HELPER_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sembuf.h
+@@ -0,0 +1,52 @@
++/*
++ * arch/ubicom32/include/asm/sembuf.h
++ * The semid64_ds structure for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SEMBUF_H
++#define _ASM_UBICOM32_SEMBUF_H
++
++/*
++ * The semid64_ds structure for ubicom32 architecture.
++ * Note extra padding because this structure is passed back and forth
++ * between kernel and user space.
++ *
++ * Pad space is left for:
++ * - 64-bit time_t to solve y2038 problem
++ * - 2 miscellaneous 32-bit values
++ */
++
++struct semid64_ds {
++ struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
++ __kernel_time_t sem_otime; /* last semop time */
++ unsigned long __unused1;
++ __kernel_time_t sem_ctime; /* last change time */
++ unsigned long __unused2;
++ unsigned long sem_nsems; /* no. of semaphores in array */
++ unsigned long __unused3;
++ unsigned long __unused4;
++};
++
++#endif /* _ASM_UBICOM32_SEMBUF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/setup.h
+@@ -0,0 +1,35 @@
++/*
++ * arch/ubicom32/include/asm/setup.h
++ * Kernel command line length definition.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004, Microtronix Datacom Ltd., All rights reserved.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_SETUP_H
++#define _ASM_UBICOM32_SETUP_H
++
++#define COMMAND_LINE_SIZE 512
++
++#endif /* _ASM_UBICOM32_SETUP_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/shmbuf.h
+@@ -0,0 +1,69 @@
++/*
++ * arch/ubicom32/include/asm/shmbuf.h
++ * The shmid64_ds structure for the Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SHMBUF_H
++#define _ASM_UBICOM32_SHMBUF_H
++
++/*
++ * The shmid64_ds structure for m68k architecture.
++ * Note extra padding because this structure is passed back and forth
++ * between kernel and user space.
++ *
++ * Pad space is left for:
++ * - 64-bit time_t to solve y2038 problem
++ * - 2 miscellaneous 32-bit values
++ */
++
++struct shmid64_ds {
++ struct ipc64_perm shm_perm; /* operation perms */
++ size_t shm_segsz; /* size of segment (bytes) */
++ __kernel_time_t shm_atime; /* last attach time */
++ unsigned long __unused1;
++ __kernel_time_t shm_dtime; /* last detach time */
++ unsigned long __unused2;
++ __kernel_time_t shm_ctime; /* last change time */
++ unsigned long __unused3;
++ __kernel_pid_t shm_cpid; /* pid of creator */
++ __kernel_pid_t shm_lpid; /* pid of last operator */
++ unsigned long shm_nattch; /* no. of current attaches */
++ unsigned long __unused4;
++ unsigned long __unused5;
++};
++
++struct shminfo64 {
++ unsigned long shmmax;
++ unsigned long shmmin;
++ unsigned long shmmni;
++ unsigned long shmseg;
++ unsigned long shmall;
++ unsigned long __unused1;
++ unsigned long __unused2;
++ unsigned long __unused3;
++ unsigned long __unused4;
++};
++
++#endif /* _ASM_UBICOM32_SHMBUF_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/shmparam.h
+@@ -0,0 +1,35 @@
++/*
++ * arch/ubicom32/include/asm/shmparam.h
++ * Shared memory definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2004 Microtronix Datacom Ltd
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ * Alpha, ix86, M68K, Sparc, ...et al
++ */
++#ifndef _ASM_UBICOM32_SHMPARAM_H
++#define _ASM_UBICOM32_SHMPARAM_H
++
++#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
++
++#endif /* _ASM_UBICOM32_SHMPARAM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sigcontext.h
+@@ -0,0 +1,37 @@
++/*
++ * arch/ubicom32/include/asm/sigcontext.h
++ * Definition of sigcontext struct for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SIGCONTEXT_H
++#define _ASM_UBICOM32_SIGCONTEXT_H
++
++#include <asm/ptrace.h>
++
++struct sigcontext {
++ struct pt_regs sc_regs;
++};
++
++#endif /* _ASM_UBICOM32_SIGCONTEXT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/siginfo.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/siginfo.h
++ * Generic siginfo.h definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SIGINFO_H
++#define _ASM_UBICOM32_SIGINFO_H
++
++#include <asm-generic/siginfo.h>
++
++#endif /* _ASM_UBICOM32_SIGINFO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/signal.h
+@@ -0,0 +1,180 @@
++/*
++ * arch/ubicom32/include/asm/signal.h
++ * Signal related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SIGNAL_H
++#define _ASM_UBICOM32_SIGNAL_H
++
++#include <linux/types.h>
++
++/* Avoid too many header ordering problems. */
++struct siginfo;
++
++#ifdef __KERNEL__
++/* Most things should be clean enough to redefine this at will, if care
++ is taken to make libc match. */
++
++#define _NSIG 64
++#define _NSIG_BPW 32
++#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
++
++typedef unsigned long old_sigset_t; /* at least 32 bits */
++
++typedef struct {
++ unsigned long sig[_NSIG_WORDS];
++} sigset_t;
++
++#endif /* __KERNEL__ */
++
++#define SIGHUP 1
++#define SIGINT 2
++#define SIGQUIT 3
++#define SIGILL 4
++#define SIGTRAP 5
++#define SIGABRT 6
++#define SIGIOT 6
++#define SIGBUS 7
++#define SIGFPE 8
++#define SIGKILL 9
++#define SIGUSR1 10
++#define SIGSEGV 11
++#define SIGUSR2 12
++#define SIGPIPE 13
++#define SIGALRM 14
++#define SIGTERM 15
++#define SIGSTKFLT 16
++#define SIGCHLD 17
++#define SIGCONT 18
++#define SIGSTOP 19
++#define SIGTSTP 20
++#define SIGTTIN 21
++#define SIGTTOU 22
++#define SIGURG 23
++#define SIGXCPU 24
++#define SIGXFSZ 25
++#define SIGVTALRM 26
++#define SIGPROF 27
++#define SIGWINCH 28
++#define SIGIO 29
++#define SIGPOLL SIGIO
++/*
++#define SIGLOST 29
++*/
++#define SIGPWR 30
++#define SIGSYS 31
++#define SIGUNUSED 31
++
++/* These should not be considered constants from userland. */
++#define SIGRTMIN 32
++#define SIGRTMAX _NSIG
++
++/*
++ * SA_FLAGS values:
++ *
++ * SA_ONSTACK indicates that a registered stack_t will be used.
++ * SA_RESTART flag to get restarting signals (which were the default long ago)
++ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
++ * SA_RESETHAND clears the handler when the signal is delivered.
++ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
++ * SA_NODEFER prevents the current signal from being masked in the handler.
++ *
++ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
++ * Unix names RESETHAND and NODEFER respectively.
++ */
++#define SA_NOCLDSTOP 0x00000001
++#define SA_NOCLDWAIT 0x00000002
++#define SA_SIGINFO 0x00000004
++#define SA_ONSTACK 0x08000000
++#define SA_RESTART 0x10000000
++#define SA_NODEFER 0x40000000
++#define SA_RESETHAND 0x80000000
++
++#define SA_NOMASK SA_NODEFER
++#define SA_ONESHOT SA_RESETHAND
++
++/*
++ * sigaltstack controls
++ */
++#define SS_ONSTACK 1
++#define SS_DISABLE 2
++
++#define MINSIGSTKSZ 2048
++#define SIGSTKSZ 8192
++
++#include <asm-generic/signal.h>
++
++#ifdef __KERNEL__
++struct old_sigaction {
++ __sighandler_t sa_handler;
++ old_sigset_t sa_mask;
++ unsigned long sa_flags;
++ void (*sa_restorer)(void);
++};
++
++struct sigaction {
++ __sighandler_t sa_handler;
++ unsigned long sa_flags;
++ void (*sa_restorer)(void);
++ sigset_t sa_mask; /* mask last for extensibility */
++};
++
++struct k_sigaction {
++ struct sigaction sa;
++};
++#else
++/* Here we must cater to libcs that poke about in kernel headers. */
++
++struct sigaction {
++ union {
++ __sighandler_t _sa_handler;
++ void (*_sa_sigaction)(int, struct siginfo *, void *);
++ } _u;
++ sigset_t sa_mask;
++ unsigned long sa_flags;
++ void (*sa_restorer)(void);
++};
++
++#define sa_handler _u._sa_handler
++#define sa_sigaction _u._sa_sigaction
++
++#endif /* __KERNEL__ */
++
++typedef struct sigaltstack {
++ void *ss_sp;
++ int ss_flags;
++ size_t ss_size;
++} stack_t;
++
++#ifdef __KERNEL__
++
++#include <asm/sigcontext.h>
++#undef __HAVE_ARCH_SIG_BITOPS
++
++#define ptrace_signal_deliver(regs, cookie) do { } while (0)
++
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_SIGNAL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/smp.h
+@@ -0,0 +1,83 @@
++/*
++ * arch/ubicom32/include/asm/smp.h
++ * SMP definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SMP_H
++#define _ASM_UBICOM32_SMP_H
++
++#ifndef ASSEMBLY
++#include <linux/bitops.h>
++#include <linux/threads.h>
++#include <linux/cpumask.h>
++#include <asm/ip5000.h>
++
++typedef unsigned long address_t;
++extern cpumask_t cpu_online_map;
++extern unsigned int smp_ipi_irq;
++
++/*
++ * This magic constant controls our willingness to transfer
++ * a process across CPUs.
++ *
++ * Such a transfer incurs cache and tlb
++ * misses. The current value is inherited from i386. Still needs
++ * to be tuned for parisc.
++ */
++#define PROC_CHANGE_PENALTY 15 /* Schedule penalty */
++#define NO_PROC_ID 0xFF /* No processor magic marker */
++#define ANY_PROC_ID 0xFF /* Any processor magic marker */
++
++#ifdef CONFIG_SMP
++#define raw_smp_processor_id() (current_thread_info()->cpu)
++#endif /* CONFIG_SMP */
++
++static inline int __cpu_disable (void)
++{
++ return 0;
++}
++
++static inline void __cpu_die (unsigned int cpu)
++{
++ while(1) {
++ };
++}
++
++extern int __cpu_up(unsigned int cpu);
++extern void smp_send_timer_all(void);
++extern void smp_timer_broadcast(cpumask_t mask);
++extern void smp_set_affinity(unsigned int irq, cpumask_t dest);
++extern void arch_send_call_function_single_ipi(int cpu);
++extern void arch_send_call_function_ipi(cpumask_t mask);
++
++/*
++ * TODO: Once these are fully tested, we should turn them into
++ * inline macros for performance.
++ */
++extern unsigned long smp_get_affinity(unsigned int irq, int *all);
++extern void smp_reset_ipi(unsigned long mask);
++
++#endif /* !ASSEMBLY */
++#endif /* _ASM_UBICOM32_SMP_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/socket.h
+@@ -0,0 +1,84 @@
++/*
++ * arch/ubicom32/include/asm/socket.h
++ * Socket options definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SOCKET_H
++#define _ASM_UBICOM32_SOCKET_H
++
++#include <asm/sockios.h>
++
++/* For setsockopt(2) */
++#define SOL_SOCKET 1
++
++#define SO_DEBUG 1
++#define SO_REUSEADDR 2
++#define SO_TYPE 3
++#define SO_ERROR 4
++#define SO_DONTROUTE 5
++#define SO_BROADCAST 6
++#define SO_SNDBUF 7
++#define SO_RCVBUF 8
++#define SO_SNDBUFFORCE 32
++#define SO_RCVBUFFORCE 33
++#define SO_KEEPALIVE 9
++#define SO_OOBINLINE 10
++#define SO_NO_CHECK 11
++#define SO_PRIORITY 12
++#define SO_LINGER 13
++#define SO_BSDCOMPAT 14
++/* To add :#define SO_REUSEPORT 15 */
++#define SO_PASSCRED 16
++#define SO_PEERCRED 17
++#define SO_RCVLOWAT 18
++#define SO_SNDLOWAT 19
++#define SO_RCVTIMEO 20
++#define SO_SNDTIMEO 21
++
++/* Security levels - as per NRL IPv6 - don't actually do anything */
++#define SO_SECURITY_AUTHENTICATION 22
++#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
++#define SO_SECURITY_ENCRYPTION_NETWORK 24
++
++#define SO_BINDTODEVICE 25
++
++/* Socket filtering */
++#define SO_ATTACH_FILTER 26
++#define SO_DETACH_FILTER 27
++
++#define SO_PEERNAME 28
++#define SO_TIMESTAMP 29
++#define SCM_TIMESTAMP SO_TIMESTAMP
++
++#define SO_ACCEPTCONN 30
++
++#define SO_PEERSEC 31
++#define SO_PASSSEC 34
++#define SO_TIMESTAMPNS 35
++#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
++
++#define SO_MARK 36
++
++#endif /* _ASM_UBICOM32_SOCKET_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/sockios.h
+@@ -0,0 +1,40 @@
++/*
++ * arch/ubicom32/include/asm/sockios.h
++ * Socket-level ioctl definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SOCKIOS_H
++#define _ASM_UBICOM32_SOCKIOS_H
++
++/* Socket-level I/O control calls. */
++#define FIOSETOWN 0x8901
++#define SIOCSPGRP 0x8902
++#define FIOGETOWN 0x8903
++#define SIOCGPGRP 0x8904
++#define SIOCATMARK 0x8905
++#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
++#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
++
++#endif /* _ASM_UBICOM32_SOCKIOS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/spinlock.h
+@@ -0,0 +1,293 @@
++/*
++ * arch/ubicom32/include/asm/spinlock.h
++ * Spinlock related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SPINLOCK_H
++#define _ASM_UBICOM32_SPINLOCK_H
++
++#include <asm/system.h>
++#include <asm/processor.h>
++#include <asm/spinlock_types.h>
++
++/*
++ * __raw_spin_lock()
++ * Lock the lock.
++ */
++static inline void __raw_spin_lock(raw_spinlock_t *x)
++{
++ asm volatile (
++ "1: bset %0, %0, #0 \n\t"
++ " jmpne.f 1b \n\t"
++ : "+U4" (x->lock)
++ :
++ : "memory", "cc"
++ );
++}
++
++/*
++ * __raw_spin_unlock()
++ * Unlock the lock.
++ */
++static inline void __raw_spin_unlock(raw_spinlock_t *x)
++{
++ asm volatile (
++ " bclr %0, %0, #0 \n\t"
++ : "+U4" (x->lock)
++ :
++ : "memory", "cc"
++ );
++}
++
++/*
++ * __raw_spin_is_locked()
++ * Test if the lock is locked.
++ */
++static inline int __raw_spin_is_locked(raw_spinlock_t *x)
++{
++ return x->lock;
++}
++
++/*
++ * __raw_spin_unlock_wait()
++ * Wait for the lock to be unlocked.
++ *
++ * Note: the caller has not guarantee that the lock will not
++ * be acquired before they get to it.
++ */
++static inline void __raw_spin_unlock_wait(raw_spinlock_t *x)
++{
++ do {
++ cpu_relax();
++ } while (__raw_spin_is_locked(x));
++}
++
++/*
++ * __raw_spin_trylock()
++ * Try the lock, return 0 on failure, 1 on success.
++ */
++static inline int __raw_spin_trylock(raw_spinlock_t *x)
++{
++ int ret = 0;
++
++ asm volatile (
++ " bset %1, %1, #0 \n\t"
++ " jmpne.f 1f \n\t"
++ " move.4 %0, #1 \n\t"
++ "1: \n\t"
++ : "+r" (ret), "+U4" (x->lock)
++ :
++ : "memory", "cc"
++ );
++
++ return ret;
++}
++
++/*
++ * __raw_spin_lock_flags()
++ * Spin waiting for the lock (enabling IRQ(s))
++ */
++static inline void __raw_spin_lock_flags(raw_spinlock_t *x, unsigned long flags)
++{
++ mb();
++ while (!__raw_spin_trylock(x)) {
++ /*
++ * If the flags from the IRQ are set, interrupts are disabled and we
++ * need to re-enable them.
++ */
++ if (!flags) {
++ cpu_relax();
++ } else {
++ raw_local_irq_enable();
++ cpu_relax();
++ raw_local_irq_disable();
++ }
++ }
++ mb();
++}
++
++/*
++ * Read-write spinlocks, allowing multiple readers but only one writer.
++ * Linux rwlocks are unfair to writers; they can be starved for an indefinite
++ * time by readers. With care, they can also be taken in interrupt context.
++ *
++ * In Ubicom32 architecture implementation, we have a spinlock and a counter.
++ * Readers use the lock to serialise their access to the counter (which
++ * records how many readers currently hold the lock).
++ * Writers hold the spinlock, preventing any readers or other writers from
++ * grabbing the rwlock.
++ */
++
++/*
++ * __raw_read_lock()
++ * Increment the counter in the rwlock.
++ *
++ * Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to grab the same read lock
++ */
++static inline void __raw_read_lock(raw_rwlock_t *rw)
++{
++ unsigned long flags;
++ raw_local_irq_save(flags);
++ __raw_spin_lock_flags(&rw->lock, flags);
++ rw->counter++;
++ __raw_spin_unlock(&rw->lock);
++ raw_local_irq_restore(flags);
++}
++
++/*
++ * __raw_read_unlock()
++ * Decrement the counter.
++ *
++ * Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to grab the same read lock
++ */
++static inline void __raw_read_unlock(raw_rwlock_t *rw)
++{
++ unsigned long flags;
++ raw_local_irq_save(flags);
++ __raw_spin_lock_flags(&rw->lock, flags);
++ rw->counter--;
++ __raw_spin_unlock(&rw->lock);
++ raw_local_irq_restore(flags);
++}
++
++/*
++ * __raw_read_trylock()
++ * Increment the counter if we can.
++ *
++ * Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to grab the same read lock
++ */
++static inline int __raw_read_trylock(raw_rwlock_t *rw)
++{
++ unsigned long flags;
++ retry:
++ raw_local_irq_save(flags);
++ if (__raw_spin_trylock(&rw->lock)) {
++ rw->counter++;
++ __raw_spin_unlock(&rw->lock);
++ raw_local_irq_restore(flags);
++ return 1;
++ }
++
++ raw_local_irq_restore(flags);
++
++ /*
++ * If write-locked, we fail to acquire the lock
++ */
++ if (rw->counter < 0) {
++ return 0;
++ }
++
++ /*
++ * Wait until we have a realistic chance at the lock
++ */
++ while (__raw_spin_is_locked(&rw->lock) && rw->counter >= 0) {
++ cpu_relax();
++ }
++
++ goto retry;
++}
++
++/*
++ * __raw_write_lock()
++ *
++ * Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to read_trylock() this lock
++ */
++static inline void __raw_write_lock(raw_rwlock_t *rw)
++{
++ unsigned long flags;
++retry:
++ raw_local_irq_save(flags);
++ __raw_spin_lock_flags(&rw->lock, flags);
++
++ if (rw->counter != 0) {
++ __raw_spin_unlock(&rw->lock);
++ raw_local_irq_restore(flags);
++
++ while (rw->counter != 0)
++ cpu_relax();
++
++ goto retry;
++ }
++
++ rw->counter = -1; /* mark as write-locked */
++ mb();
++ raw_local_irq_restore(flags);
++}
++
++static inline void __raw_write_unlock(raw_rwlock_t *rw)
++{
++ rw->counter = 0;
++ __raw_spin_unlock(&rw->lock);
++}
++
++/* Note that we have to ensure interrupts are disabled in case we're
++ * interrupted by some other code that wants to read_trylock() this lock */
++static inline int __raw_write_trylock(raw_rwlock_t *rw)
++{
++ unsigned long flags;
++ int result = 0;
++
++ raw_local_irq_save(flags);
++ if (__raw_spin_trylock(&rw->lock)) {
++ if (rw->counter == 0) {
++ rw->counter = -1;
++ result = 1;
++ } else {
++ /* Read-locked. Oh well. */
++ __raw_spin_unlock(&rw->lock);
++ }
++ }
++ raw_local_irq_restore(flags);
++
++ return result;
++}
++
++/*
++ * read_can_lock - would read_trylock() succeed?
++ * @lock: the rwlock in question.
++ */
++static inline int __raw_read_can_lock(raw_rwlock_t *rw)
++{
++ return rw->counter >= 0;
++}
++
++/*
++ * write_can_lock - would write_trylock() succeed?
++ * @lock: the rwlock in question.
++ */
++static inline int __raw_write_can_lock(raw_rwlock_t *rw)
++{
++ return !rw->counter;
++}
++
++#define _raw_spin_relax(lock) cpu_relax()
++#define _raw_read_relax(lock) cpu_relax()
++#define _raw_write_relax(lock) cpu_relax()
++
++#endif /* _ASM_UBICOM32_SPINLOCK_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/spinlock_types.h
+@@ -0,0 +1,43 @@
++/*
++ * arch/ubicom32/include/asm/spinlock_types.h
++ * Spinlock related structure definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SPINLOCK_TYPES_H
++#define _ASM_UBICOM32_SPINLOCK_TYPES_H
++
++typedef struct {
++ volatile unsigned int lock;
++} raw_spinlock_t;
++
++typedef struct {
++ raw_spinlock_t lock;
++ volatile int counter;
++} raw_rwlock_t;
++
++#define __RAW_SPIN_LOCK_UNLOCKED { 0 }
++#define __RAW_RW_LOCK_UNLOCKED { __RAW_SPIN_LOCK_UNLOCKED, 0 }
++
++#endif /* _ASM_UBICOM32_SPINLOCK_TYPES_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/stacktrace.h
+@@ -0,0 +1,72 @@
++/*
++ * arch/ubicom32/include/asm/stacktrace.h
++ * Stacktrace functions for the Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_STACKTRACE_H
++#define _ASM_UBICOM32_STACKTRACE_H
++
++#define between(a, b, c) (( \
++ ((unsigned long) a) >= ((unsigned long) b)) && \
++ (((unsigned long)a) <= ((unsigned long)c)))
++
++/*
++ * These symbols are filled in by the linker.
++ */
++extern unsigned long _stext;
++extern unsigned long _etext;
++
++/* OCM text goes from __ocm_text_run_begin to __data_begin */
++extern unsigned long __ocm_text_run_begin;
++extern unsigned long __data_begin;
++
++/* Account for OCM case - see stacktrace.c maybe combine(also trap.c) */
++/*
++ * ubicom32_is_kernel()
++ *
++ * Check to see if the given address belongs to the kernel.
++ * NOMMU does not permit any other means.
++ */
++static inline int ubicom32_is_kernel(unsigned long addr)
++{
++ int is_kernel = between(addr, &_stext, &_etext) || \
++ between(addr, &__ocm_text_run_begin, &__data_begin);
++
++#ifdef CONFIG_MODULES
++ if (!is_kernel)
++ is_kernel = is_module_address(addr);
++#endif
++ return is_kernel;
++}
++
++extern unsigned long stacktrace_iterate(
++ unsigned long **trace,
++ unsigned long stext, unsigned long etext,
++ unsigned long ocm_stext, unsigned long ocm_etext,
++ unsigned long sstack, unsigned long estack);
++#ifdef CONFIG_STACKTRACE
++void stacktrace_save_entries(struct task_struct *tsk, struct stack_trace *trace, unsigned long sp);
++#endif
++#endif /* _ASM_UBICOM32_STACKTRACE_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/statfs.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/statfs.h
++ * Generic statfs.h definitions
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_STATFS_H
++#define _ASM_UBICOM32_STATFS_H
++
++#include <asm-generic/statfs.h>
++
++#endif /* _ASM_UBICOM32_STATFS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/stat.h
+@@ -0,0 +1,104 @@
++/*
++ * arch/ubicom32/include/asm/stat.h
++ * File status definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_STAT_H
++#define _ASM_UBICOM32_STAT_H
++
++struct __old_kernel_stat {
++ unsigned short st_dev;
++ unsigned short st_ino;
++ unsigned short st_mode;
++ unsigned short st_nlink;
++ unsigned short st_uid;
++ unsigned short st_gid;
++ unsigned short st_rdev;
++ unsigned long st_size;
++ unsigned long st_atime;
++ unsigned long st_mtime;
++ unsigned long st_ctime;
++};
++
++struct stat {
++ unsigned short st_dev;
++ unsigned short __pad1;
++ unsigned long st_ino;
++ unsigned short st_mode;
++ unsigned short st_nlink;
++ unsigned short st_uid;
++ unsigned short st_gid;
++ unsigned short st_rdev;
++ unsigned short __pad2;
++ unsigned long st_size;
++ unsigned long st_blksize;
++ unsigned long st_blocks;
++ unsigned long st_atime;
++ unsigned long __unused1;
++ unsigned long st_mtime;
++ unsigned long __unused2;
++ unsigned long st_ctime;
++ unsigned long __unused3;
++ unsigned long __unused4;
++ unsigned long __unused5;
++};
++
++/* This matches struct stat64 in glibc2.1, hence the absolutely
++ * insane amounts of padding around dev_t's.
++ */
++struct stat64 {
++ unsigned long long st_dev;
++ unsigned char __pad1[2];
++
++#define STAT64_HAS_BROKEN_ST_INO 1
++ unsigned long __st_ino;
++
++ unsigned int st_mode;
++ unsigned int st_nlink;
++
++ unsigned long st_uid;
++ unsigned long st_gid;
++
++ unsigned long long st_rdev;
++ unsigned char __pad3[2];
++
++ long long st_size;
++ unsigned long st_blksize;
++
++ unsigned long long st_blocks; /* Number 512-byte blocks allocated. */
++
++ unsigned long st_atime;
++ unsigned long st_atime_nsec;
++
++ unsigned long st_mtime;
++ unsigned long st_mtime_nsec;
++
++ unsigned long st_ctime;
++ unsigned long st_ctime_nsec;
++
++ unsigned long long st_ino;
++};
++
++#endif /* _ASM_UBICOM32_STAT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/string.h
+@@ -0,0 +1,37 @@
++/*
++ * arch/ubicom32/include/asm/string.h
++ * String operation definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_STRING_H
++#define _ASM_UBICOM32_STRING_H
++
++#define __HAVE_ARCH_MEMSET
++extern void *memset(void *b, int c, size_t len);
++
++#define __HAVE_ARCH_MEMCPY
++extern void *memcpy(void *to, const void *from, size_t len);
++
++#endif /* _ASM_UBICOM32_STRING_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/switch-bcm539x.h
+@@ -0,0 +1,57 @@
++/*
++ * arch/ubicom32/include/asm/switch-bcm539x.h
++ * Broadcom bcm539x platform data definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SWITCH_BCM539X_H
++#define _ASM_UBICOM32_SWITCH_BCM539X_H
++
++#define SWITCH_BCM539X_FLAG_HW_RESET 0x01
++#define SWITCH_BCM539X_FLAG_SW_RESET 0x02
++
++struct switch_bcm539x_platform_data {
++ /*
++ * See flags above
++ */
++ u32_t flags;
++
++ /*
++ * GPIO to use for nReset
++ */
++ int pin_reset;
++
++
++ /*
++ * GPIO to use for chip select
++ */
++ int pin_cs;
++
++ /*
++ * Name of this switch
++ */
++ const char *name;
++};
++
++#endif /* _ASM_UBICOM32_SWITCH_BCM539X_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/system.h
+@@ -0,0 +1,101 @@
++/*
++ * arch/ubicom32/include/asm/system.h
++ * Low level switching definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_SYSTEM_H
++#define _ASM_UBICOM32_SYSTEM_H
++
++#include <linux/irqflags.h>
++#include <linux/linkage.h>
++#include <asm/segment.h>
++#include <asm/entry.h>
++#include <asm/ldsr.h>
++#include <asm/irq.h>
++#include <asm/percpu.h>
++#include <asm/ubicom32-common.h>
++#include <asm/processor.h>
++
++/*
++ * switch_to(n) should switch tasks to task ptr, first checking that
++ * ptr isn't the current task, in which case it does nothing.
++ */
++asmlinkage void resume(void);
++extern void *__switch_to(struct task_struct *prev,
++ struct thread_struct *prev_switch,
++ struct thread_struct *next_switch);
++
++/*
++ * We will need a per linux thread sw_ksp for the switch_to macro to
++ * track the kernel stack pointer for the current thread on that linux thread.
++ */
++#define switch_to(prev,next,last) \
++({ \
++ void *_last; \
++ _last = (void *) \
++ __switch_to(prev, &prev->thread, &next->thread); \
++ (last) = _last; \
++})
++
++/*
++ * Force strict CPU ordering.
++ * Not really required on ubicom32...
++ */
++#define nop() asm volatile ("nop"::)
++#define mb() asm volatile ("" : : :"memory")
++#define rmb() asm volatile ("" : : :"memory")
++#define wmb() asm volatile ("" : : :"memory")
++#define set_mb(var, value) ({ (var) = (value); wmb(); })
++
++#ifdef CONFIG_SMP
++#define smp_mb() mb()
++#define smp_rmb() rmb()
++#define smp_wmb() wmb()
++#define smp_read_barrier_depends() read_barrier_depends()
++#else
++#define smp_mb() mb()
++#define smp_rmb() rmb()
++#define smp_wmb() wmb()
++#define smp_read_barrier_depends() do { } while(0)
++#endif
++
++#define read_barrier_depends() ((void)0)
++
++/*
++ * The following defines change how the scheduler calls the switch_to()
++ * macro.
++ *
++ * 1) The first causes the runqueue to be unlocked on entry to
++ * switch_to(). Since our ctx code does not play with the runqueue
++ * we do not need it unlocked.
++ *
++ * 2) The later turns interrupts on during a ctxsw to reduce the latency of
++ * interrupts during ctx. At this point in the port, we believe that this
++ * latency is not a problem since we have very little code to perform a ctxsw.
++ */
++// #define __ARCH_WANT_UNLOCKED_CTXSW
++// #define __ARCH_WANT_INTERRUPTS_ON_CTXSW
++
++#endif /* _ASM_UBICOM32_SYSTEM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/termbits.h
+@@ -0,0 +1,227 @@
++/*
++ * arch/ubicom32/include/asm/termbits.h
++ * Terminal/serial port definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TERMBITS_H
++#define _ASM_UBICOM32_TERMBITS_H
++
++#include <linux/posix_types.h>
++
++typedef unsigned char cc_t;
++typedef unsigned int speed_t;
++typedef unsigned int tcflag_t;
++
++#define NCCS 19
++struct termios {
++ tcflag_t c_iflag; /* input mode flags */
++ tcflag_t c_oflag; /* output mode flags */
++ tcflag_t c_cflag; /* control mode flags */
++ tcflag_t c_lflag; /* local mode flags */
++ cc_t c_line; /* line discipline */
++ cc_t c_cc[NCCS]; /* control characters */
++};
++
++struct termios2 {
++ tcflag_t c_iflag; /* input mode flags */
++ tcflag_t c_oflag; /* output mode flags */
++ tcflag_t c_cflag; /* control mode flags */
++ tcflag_t c_lflag; /* local mode flags */
++ cc_t c_line; /* line discipline */
++ cc_t c_cc[NCCS]; /* control characters */
++ speed_t c_ispeed; /* input speed */
++ speed_t c_ospeed; /* output speed */
++};
++
++struct ktermios {
++ tcflag_t c_iflag; /* input mode flags */
++ tcflag_t c_oflag; /* output mode flags */
++ tcflag_t c_cflag; /* control mode flags */
++ tcflag_t c_lflag; /* local mode flags */
++ cc_t c_line; /* line discipline */
++ cc_t c_cc[NCCS]; /* control characters */
++ speed_t c_ispeed; /* input speed */
++ speed_t c_ospeed; /* output speed */
++};
++
++/* c_cc characters */
++#define VINTR 0
++#define VQUIT 1
++#define VERASE 2
++#define VKILL 3
++#define VEOF 4
++#define VTIME 5
++#define VMIN 6
++#define VSWTC 7
++#define VSTART 8
++#define VSTOP 9
++#define VSUSP 10
++#define VEOL 11
++#define VREPRINT 12
++#define VDISCARD 13
++#define VWERASE 14
++#define VLNEXT 15
++#define VEOL2 16
++
++
++/* c_iflag bits */
++#define IGNBRK 0000001
++#define BRKINT 0000002
++#define IGNPAR 0000004
++#define PARMRK 0000010
++#define INPCK 0000020
++#define ISTRIP 0000040
++#define INLCR 0000100
++#define IGNCR 0000200
++#define ICRNL 0000400
++#define IUCLC 0001000
++#define IXON 0002000
++#define IXANY 0004000
++#define IXOFF 0010000
++#define IMAXBEL 0020000
++#define IUTF8 0040000
++
++/* c_oflag bits */
++#define OPOST 0000001
++#define OLCUC 0000002
++#define ONLCR 0000004
++#define OCRNL 0000010
++#define ONOCR 0000020
++#define ONLRET 0000040
++#define OFILL 0000100
++#define OFDEL 0000200
++#define NLDLY 0000400
++#define NL0 0000000
++#define NL1 0000400
++#define CRDLY 0003000
++#define CR0 0000000
++#define CR1 0001000
++#define CR2 0002000
++#define CR3 0003000
++#define TABDLY 0014000
++#define TAB0 0000000
++#define TAB1 0004000
++#define TAB2 0010000
++#define TAB3 0014000
++#define XTABS 0014000
++#define BSDLY 0020000
++#define BS0 0000000
++#define BS1 0020000
++#define VTDLY 0040000
++#define VT0 0000000
++#define VT1 0040000
++#define FFDLY 0100000
++#define FF0 0000000
++#define FF1 0100000
++
++/* c_cflag bit meaning */
++#define CBAUD 0010017
++#define B0 0000000 /* hang up */
++#define B50 0000001
++#define B75 0000002
++#define B110 0000003
++#define B134 0000004
++#define B150 0000005
++#define B200 0000006
++#define B300 0000007
++#define B600 0000010
++#define B1200 0000011
++#define B1800 0000012
++#define B2400 0000013
++#define B4800 0000014
++#define B9600 0000015
++#define B19200 0000016
++#define B38400 0000017
++#define EXTA B19200
++#define EXTB B38400
++#define CSIZE 0000060
++#define CS5 0000000
++#define CS6 0000020
++#define CS7 0000040
++#define CS8 0000060
++#define CSTOPB 0000100
++#define CREAD 0000200
++#define PARENB 0000400
++#define PARODD 0001000
++#define HUPCL 0002000
++#define CLOCAL 0004000
++#define CBAUDEX 0010000
++#define BOTHER 0010000
++#define B57600 0010001
++#define B115200 0010002
++#define B230400 0010003
++#define B460800 0010004
++#define B500000 0010005
++#define B576000 0010006
++#define B921600 0010007
++#define B1000000 0010010
++#define B1152000 0010011
++#define B1500000 0010012
++#define B2000000 0010013
++#define B2500000 0010014
++#define B3000000 0010015
++#define B3500000 0010016
++#define B4000000 0010017
++#define CIBAUD 002003600000 /* input baud rate */
++#define CMSPAR 010000000000 /* mark or space (stick) parity */
++#define CRTSCTS 020000000000 /* flow control */
++
++#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */
++
++/* c_lflag bits */
++#define ISIG 0000001
++#define ICANON 0000002
++#define XCASE 0000004
++#define ECHO 0000010
++#define ECHOE 0000020
++#define ECHOK 0000040
++#define ECHONL 0000100
++#define NOFLSH 0000200
++#define TOSTOP 0000400
++#define ECHOCTL 0001000
++#define ECHOPRT 0002000
++#define ECHOKE 0004000
++#define FLUSHO 0010000
++#define PENDIN 0040000
++#define IEXTEN 0100000
++
++
++/* tcflow() and TCXONC use these */
++#define TCOOFF 0
++#define TCOON 1
++#define TCIOFF 2
++#define TCION 3
++
++/* tcflush() and TCFLSH use these */
++#define TCIFLUSH 0
++#define TCOFLUSH 1
++#define TCIOFLUSH 2
++
++/* tcsetattr uses these */
++#define TCSANOW 0
++#define TCSADRAIN 1
++#define TCSAFLUSH 2
++
++#endif /* _ASM_UBICOM32_TERMBITS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/termios.h
+@@ -0,0 +1,119 @@
++/*
++ * arch/ubicom32/include/asm/termios.h
++ * Ubicom32 termio definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TERMIOS_H
++#define _ASM_UBICOM32_TERMIOS_H
++
++#include <asm/termbits.h>
++#include <asm/ioctls.h>
++
++struct winsize {
++ unsigned short ws_row;
++ unsigned short ws_col;
++ unsigned short ws_xpixel;
++ unsigned short ws_ypixel;
++};
++
++#define NCC 8
++struct termio {
++ unsigned short c_iflag; /* input mode flags */
++ unsigned short c_oflag; /* output mode flags */
++ unsigned short c_cflag; /* control mode flags */
++ unsigned short c_lflag; /* local mode flags */
++ unsigned char c_line; /* line discipline */
++ unsigned char c_cc[NCC]; /* control characters */
++};
++
++#ifdef __KERNEL__
++/* intr=^C quit=^| erase=del kill=^U
++ eof=^D vtime=\0 vmin=\1 sxtc=\0
++ start=^Q stop=^S susp=^Z eol=\0
++ reprint=^R discard=^U werase=^W lnext=^V
++ eol2=\0
++*/
++#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
++#endif
++
++/* modem lines */
++#define TIOCM_LE 0x001
++#define TIOCM_DTR 0x002
++#define TIOCM_RTS 0x004
++#define TIOCM_ST 0x008
++#define TIOCM_SR 0x010
++#define TIOCM_CTS 0x020
++#define TIOCM_CAR 0x040
++#define TIOCM_RNG 0x080
++#define TIOCM_DSR 0x100
++#define TIOCM_CD TIOCM_CAR
++#define TIOCM_RI TIOCM_RNG
++#define TIOCM_OUT1 0x2000
++#define TIOCM_OUT2 0x4000
++#define TIOCM_LOOP 0x8000
++
++/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
++
++#ifdef __KERNEL__
++
++/*
++ * Translate a "termio" structure into a "termios". Ugh.
++ */
++#define user_termio_to_kernel_termios(termios, termio) \
++({ \
++ unsigned short tmp; \
++ get_user(tmp, &(termio)->c_iflag); \
++ (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \
++ get_user(tmp, &(termio)->c_oflag); \
++ (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \
++ get_user(tmp, &(termio)->c_cflag); \
++ (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \
++ get_user(tmp, &(termio)->c_lflag); \
++ (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
++ get_user((termios)->c_line, &(termio)->c_line); \
++ copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
++})
++
++/*
++ * Translate a "termios" structure into a "termio". Ugh.
++ */
++#define kernel_termios_to_user_termio(termio, termios) \
++({ \
++ put_user((termios)->c_iflag, &(termio)->c_iflag); \
++ put_user((termios)->c_oflag, &(termio)->c_oflag); \
++ put_user((termios)->c_cflag, &(termio)->c_cflag); \
++ put_user((termios)->c_lflag, &(termio)->c_lflag); \
++ put_user((termios)->c_line, &(termio)->c_line); \
++ copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
++})
++
++#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
++#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
++#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
++#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
++
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_TERMIOS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/thread-asm.h
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/include/asm/thread-asm.h
++ * Ubicom32 architecture specific thread definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_THREAD_ASM_H
++#define _ASM_UBICOM32_THREAD_ASM_H
++
++/*
++ * thread_get_self
++ * Read and shift the current thread into reg
++ */
++.macro thread_get_self reg
++ lsr.4 \reg, ROSR, #2
++ and.4 \reg, #31, \reg /* Mask to get thread number into register */
++.endm
++
++/*
++ * thread_get_self_mask
++ * Read and shift the current thread mask into reg
++ */
++.macro thread_get_self_mask reg
++ lsr.4 \reg, ROSR, #2
++ lsl.4 \reg, #1, \reg /* Thread bit */
++.endm
++
++#endif /* _ASM_UBICOM32_THREAD_ASM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/thread.h
+@@ -0,0 +1,313 @@
++/*
++ * arch/ubicom32/include/asm/thread.h
++ * Ubicom32 architecture specific thread definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_THREAD_H
++#define _ASM_UBICOM32_THREAD_H
++
++#if !defined(__ASSEMBLY__)
++
++#include <asm/ptrace.h>
++#include <asm/ubicom32-common.h>
++
++typedef int thread_t;
++typedef unsigned char thread_type_t;
++typedef void (*thread_exec_fn_t)(void *arg);
++
++#define THREAD_NULL 0x40
++#define THREAD_TYPE_HRT (1 << 0)
++#define THREAD_TYPE_SPECIAL 0
++#define THREAD_TYPE_NORMAL 0
++#define THREAD_TYPE_BACKGROUND (1 << 1)
++
++/*
++ * This is the upper bound on the maximum hardware threads that one will find
++ * on a Ubicom processor. It is used to size per hardware thread data structures.
++ */
++#define THREAD_ARCHITECTURAL_MAX 16
++
++/*
++ * TODO: Rename this at some point to be thread_
++ */
++extern unsigned int sw_ksp[THREAD_ARCHITECTURAL_MAX];
++
++
++/*
++ * thread_get_self()
++ */
++static inline thread_t thread_get_self(void)
++{
++ thread_t result;
++ asm (
++ "lsr.4 %0, ROSR, #2 \n\t"
++ : "=d" (result)
++ :
++ : "cc"
++ );
++ return result & 31;
++}
++
++/*
++ * thread_suspend()
++ */
++static inline void thread_suspend(void)
++{
++ asm volatile (
++ "suspend\n\t"
++ :
++ :
++ );
++}
++
++/*
++ * thread_resume()
++ */
++static inline void thread_resume(thread_t thread)
++{
++ asm volatile (
++ "move.4 MT_ACTIVE_SET, %0 \n\t"
++ "pipe_flush 0 \n\t"
++ "pipe_flush 0 \n\t"
++ :
++ : "d" (1 << thread)
++ );
++}
++
++
++
++/*
++ * thread_enable_mask()
++ * Enable all threads in the mask.
++ *
++ * All writes to MT_EN must be protected by the MT_EN_LOCK bit
++ */
++static inline void thread_enable_mask(unsigned int mask)
++{
++ /*
++ * must flush the pipeline twice.
++ * first pipe_flush is to ensure write to MT_EN is completed
++ * second one is to ensure any new instructions from
++ * the targeted thread (the one being disabled), that
++ * are issued while the write to MT_EN is being executed,
++ * are completed.
++ */
++ UBICOM32_LOCK(MT_EN_LOCK_BIT);
++ asm volatile (
++ "or.4 MT_EN, MT_EN, %0 \n\t"
++ "pipe_flush 0 \n\t"
++ "pipe_flush 0 \n\t"
++ :
++ : "d" (mask)
++ : "cc"
++ );
++ UBICOM32_UNLOCK(MT_EN_LOCK_BIT);
++}
++
++/*
++ * thread_enable()
++ */
++static inline void thread_enable(thread_t thread)
++{
++ thread_enable_mask(1 << thread);
++}
++
++/*
++ * thread_disable_mask()
++ * Disable all threads in the mask.
++ *
++ * All writes to MT_EN must be protected by the MT_EN_LOCK bit
++ */
++static inline void thread_disable_mask(unsigned int mask)
++{
++ /*
++ * must flush the pipeline twice.
++ * first pipe_flush is to ensure write to MT_EN is completed
++ * second one is to ensure any new instructions from
++ * the targeted thread (the one being disabled), that
++ * are issued while the write to MT_EN is being executed,
++ * are completed.
++ */
++ UBICOM32_LOCK(MT_EN_LOCK_BIT);
++ asm volatile (
++ "and.4 MT_EN, MT_EN, %0 \n\t"
++ "pipe_flush 0 \n\t"
++ "pipe_flush 0 \n\t"
++ :
++ : "d" (~mask)
++ : "cc"
++ );
++ UBICOM32_UNLOCK(MT_EN_LOCK_BIT);
++}
++
++/*
++ * thread_disable()
++ */
++static inline void thread_disable(thread_t thread)
++{
++ thread_disable_mask(1 << thread);
++}
++
++/*
++ * thread_disable_others()
++ * Disable all other threads
++ */
++static inline void thread_disable_others(void)
++{
++ thread_t self = thread_get_self();
++ thread_disable_mask(~(1 << self));
++}
++
++/*
++ * thread_is_trapped()
++ * Is the specified tid trapped?
++ */
++static inline int thread_is_trapped(thread_t tid)
++{
++ int thread_mask = (1 << tid);
++ int trap_thread;
++
++ asm (
++ "move.4 %0, MT_TRAP \n\t"
++ : "=d" (trap_thread)
++ :
++ );
++ return (trap_thread & thread_mask);
++}
++
++/*
++ * thread_is_enabled()
++ * Is the specified tid enabled?
++ */
++static inline int thread_is_enabled(thread_t tid)
++{
++ int thread_mask = (1 << tid);
++ int enabled_threads;
++
++ asm (
++ "move.4 %0, MT_EN \n\t"
++ : "=d" (enabled_threads)
++ :
++ );
++ return (enabled_threads & thread_mask);
++}
++
++/*
++ * thread_get_instruction_count()
++ */
++static inline unsigned int thread_get_instruction_count(void)
++{
++ unsigned int result;
++ asm (
++ "move.4 %0, INST_CNT \n\t"
++ : "=r" (result)
++ );
++ return result;
++}
++
++/*
++ * thread_get_pc()
++ * pc could point to a speculative and cancelled instruction unless thread is disabled
++ */
++static inline void *thread_get_pc(thread_t thread)
++{
++ void *result;
++ asm (
++ "move.4 csr, %1 \n\t"
++ "setcsr_flush 0 \n\t"
++ "move.4 %0, pc \n\t"
++ "move.4 csr, #0 \n\t"
++ "setcsr_flush 0 \n\t"
++ : "=r" (result)
++ : "r" ((thread << 9) | (1 << 8))
++ );
++ return result;
++}
++
++/*
++ * thread_get_trap_cause()
++ * This should be called only when the thread is not running
++ */
++static inline unsigned int thread_get_trap_cause(thread_t thread)
++{
++ unsigned int result;
++ asm (
++ "move.4 csr, %1 \n\t"
++ "setcsr_flush 0 \n\t"
++ "move.4 %0, trap_cause \n\t"
++ "move.4 csr, #0 \n\t"
++ "setcsr_flush 0 \n\t"
++ : "=r" (result)
++ : "r" ((thread << 9) | (1 << 8))
++ );
++ return result;
++}
++
++/*
++ * THREAD_STALL macro.
++ */
++#define THREAD_STALL \
++ asm volatile ( \
++ "move.4 mt_dbg_active_clr, #-1 \n\t" \
++ "pipe_flush 0 \n\t" \
++ : \
++ : \
++ )
++
++extern unsigned int thread_get_mainline(void);
++extern void thread_set_mainline(thread_t tid);
++extern thread_t thread_alloc(void);
++extern thread_t thread_start(thread_t thread, thread_exec_fn_t exec, void *arg, unsigned int *sp_high, thread_type_t type);
++
++/*
++ * asm macros
++ */
++asm (
++/*
++ * thread_get_self
++ * Read and shift the current thread into reg
++ */
++".macro thread_get_self reg \n\t"
++" lsr.4 \\reg, ROSR, #2 \n\t"
++" and.4 \\reg, #31, \\reg \n\t"/* Mask to get thread number into
++ * register */
++".endm \n\t"
++
++/*
++ * thread_get_self_mask
++ * Read and shift the current thread mask into reg
++ */
++".macro thread_get_self_mask reg \n\t"
++" lsr.4 \\reg, ROSR, #2 \n\t"
++" lsl.4 \\reg, #1, \\reg \n\t" /* Thread bit */
++".endm \n\t"
++ );
++
++#else /* __ASSEMBLY__ */
++
++#include <asm/thread-asm.h>
++
++#endif /* __ASSEMBLY__ */
++#endif /* _ASM_UBICOM32_THREAD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/thread_info.h
+@@ -0,0 +1,134 @@
++/*
++ * arch/ubicom32/include/asm/thread_info.h
++ * Ubicom32 architecture low-level thread information.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Adapted from the i386 and PPC versions by Greg Ungerer (gerg@snapgear.com)
++ * Copyright (C) 2002 David Howells (dhowells@redhat.com)
++ * - Incorporating suggestions made by Linus Torvalds and Dave Miller
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_THREAD_INFO_H
++#define _ASM_UBICOM32_THREAD_INFO_H
++
++#include <asm/page.h>
++
++/*
++ * Size of kernel stack for each process. This must be a power of 2...
++ */
++#ifdef CONFIG_4KSTACKS
++#define THREAD_SIZE_ORDER (0)
++#else
++#define THREAD_SIZE_ORDER (1)
++#endif
++
++/*
++ * for asm files, THREAD_SIZE is now generated by asm-offsets.c
++ */
++#define THREAD_SIZE (PAGE_SIZE<<THREAD_SIZE_ORDER)
++
++#ifdef __KERNEL__
++
++#ifndef __ASSEMBLY__
++
++/*
++ * low level task data.
++ */
++struct thread_info {
++ struct task_struct *task; /* main task structure */
++ struct exec_domain *exec_domain; /* execution domain */
++ unsigned long flags; /* low level flags */
++ int cpu; /* cpu we're on */
++ int preempt_count; /* 0 => preemptable, <0 => BUG */
++ int interrupt_nesting; /* Interrupt nesting level. */
++ struct restart_block restart_block;
++};
++
++/*
++ * macros/functions for gaining access to the thread information structure
++ */
++#define INIT_THREAD_INFO(tsk) \
++{ \
++ .task = &tsk, \
++ .exec_domain = &default_exec_domain, \
++ .flags = 0, \
++ .cpu = 0, \
++ .interrupt_nesting = 0, \
++ .restart_block = { \
++ .fn = do_no_restart_syscall, \
++ }, \
++}
++
++#define init_thread_info (init_thread_union.thread_info)
++#define init_stack (init_thread_union.stack)
++
++
++/* how to get the thread information struct from C */
++static inline struct thread_info *current_thread_info(void)
++{
++ struct thread_info *ti;
++
++ asm (
++ "and.4 %0, sp, %1\n\t"
++ : "=&r" (ti)
++ : "d" (~(THREAD_SIZE-1))
++ : "cc"
++ );
++
++ return ti;
++}
++
++#define STACK_WARN (THREAD_SIZE / 8)
++
++#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR 1
++
++/* thread information allocation */
++#define alloc_thread_info(tsk) ((struct thread_info *) \
++ __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER))
++#define free_thread_info(ti) free_pages((unsigned long) (ti), THREAD_SIZE_ORDER)
++#endif /* __ASSEMBLY__ */
++
++#define PREEMPT_ACTIVE 0x4000000
++
++/*
++ * thread information flag bit numbers
++ */
++#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
++#define TIF_SIGPENDING 1 /* signal pending */
++#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
++#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling
++ TIF_NEED_RESCHED */
++#define TIF_MEMDIE 4
++
++/* as above, but as bit values */
++#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
++#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
++#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
++#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
++
++#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
++
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_THREAD_INFO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/timex.h
+@@ -0,0 +1,56 @@
++/*
++ * arch/ubicom32/include/asm/timex.h
++ * Ubicom32 architecture timex specifications.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TIMEX_H
++#define _ASM_UBICOM32_TIMEX_H
++
++#define CLOCK_TICK_RATE 266000000
++
++// #define ARCH_HAS_READ_CURRENT_TIMER
++
++typedef unsigned long cycles_t;
++
++static inline cycles_t get_cycles(void)
++{
++ return 0;
++}
++
++extern int timer_alloc(void);
++extern void timer_set(int timervector, unsigned int cycles);
++extern int timer_reset(int timervector, unsigned int cycles);
++extern void timer_tick_init(void);
++extern void timer_device_init(void);
++
++#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
++extern void local_timer_interrupt(void);
++#endif
++
++#if defined(CONFIG_LOCAL_TIMERS) || defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
++extern int local_timer_setup(unsigned int cpu);
++#endif
++
++#endif /* _ASM_UBICOM32_TIMEX_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/tlbflush.h
+@@ -0,0 +1,79 @@
++/*
++ * arch/ubicom32/include/asm/tlbflush.h
++ * TLB operations for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2000 Lineo, David McCullough <davidm@uclinux.org>
++ * Copyright (C) 2000-2002, Greg Ungerer <gerg@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TLB_FLUSH_H
++#define _ASM_UBICOM32_TLB_FLUSH_H
++
++#include <asm/setup.h>
++
++/*
++ * flush all user-space atc entries.
++ */
++static inline void __flush_tlb(void)
++{
++ BUG();
++}
++
++static inline void __flush_tlb_one(unsigned long addr)
++{
++ BUG();
++}
++
++#define flush_tlb() __flush_tlb()
++
++/*
++ * flush all atc entries (both kernel and user-space entries).
++ */
++static inline void flush_tlb_all(void)
++{
++ BUG();
++}
++
++static inline void flush_tlb_mm(struct mm_struct *mm)
++{
++ BUG();
++}
++
++static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
++{
++ BUG();
++}
++
++static inline void flush_tlb_range(struct mm_struct *mm,
++ unsigned long start, unsigned long end)
++{
++ BUG();
++}
++
++static inline void flush_tlb_kernel_page(unsigned long addr)
++{
++ BUG();
++}
++
++#endif /* _ASM_UBICOM32_TLB_FLUSH_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/tlb.h
+@@ -0,0 +1,47 @@
++/*
++ * arch/ubicom32/include/asm/tlb.h
++ * Ubicom32 architecture TLB operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TLB_H
++#define _ASM_UBICOM32_TLB_H
++
++/*
++ * ubicom32 doesn't need any special per-pte or
++ * per-vma handling..
++ */
++#define tlb_start_vma(tlb, vma) do { } while (0)
++#define tlb_end_vma(tlb, vma) do { } while (0)
++#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
++
++/*
++ * .. because we flush the whole mm when it
++ * fills up.
++ */
++#define tlb_flush(tlb)
++
++#include <asm-generic/tlb.h>
++
++#endif /* _ASM_UBICOM32_TLB_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/topology.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/topology.h
++ * Generic topology.h definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TOPOLOGY_H
++#define _ASM_UBICOM32_TOPOLOGY_H
++
++#include <asm-generic/topology.h>
++
++#endif /* _ASM_UBICOM32_TOPOLOGY_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/traps.h
+@@ -0,0 +1,55 @@
++/*
++ * arch/ubicom32/include/asm/traps.h
++ * Trap related definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_TRAPS_H
++#define _ASM_UBICOM32_TRAPS_H
++
++/*
++ * Trap causes passed from ultra to Host OS
++ */
++#define TRAP_CAUSE_TOTAL 13
++#define TRAP_CAUSE_DST_RANGE_ERR 12
++#define TRAP_CAUSE_SRC1_RANGE_ERR 11
++#define TRAP_CAUSE_I_RANGE_ERR 10
++#define TRAP_CAUSE_DCAPT 9
++#define TRAP_CAUSE_DST_SERROR 8
++#define TRAP_CAUSE_SRC1_SERROR 7
++#define TRAP_CAUSE_DST_MISALIGNED 6
++#define TRAP_CAUSE_SRC1_MISALIGNED 5
++#define TRAP_CAUSE_DST_DECODE_ERR 4
++#define TRAP_CAUSE_SRC1_DECODE_ERR 3
++#define TRAP_CAUSE_ILLEGAL_INST 2
++#define TRAP_CAUSE_I_SERROR 1
++#define TRAP_CAUSE_I_DECODE_ERR 0
++
++extern void trap_handler(int irq, struct pt_regs *regs);
++extern void trap_init_interrupt(void);
++extern void unaligned_emulate(unsigned int thread);
++extern int unaligned_only(unsigned int cause);
++
++#endif /* _ASM_UBICOM32_TRAPS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/types.h
+@@ -0,0 +1,75 @@
++/*
++ * arch/ubicom32/include/asm/types.h
++ * Date type definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_TYPES_H
++#define _ASM_UBICOM32_TYPES_H
++
++/*
++ * This file is never included by application software unless
++ * explicitly requested (e.g., via linux/types.h) in which case the
++ * application is Linux specific so (user-) name space pollution is
++ * not a major issue. However, for interoperability, libraries still
++ * need to be careful to avoid a name clashes.
++ */
++
++#include <asm-generic/int-ll64.h>
++
++#ifndef __ASSEMBLY__
++
++typedef unsigned short umode_t;
++
++#endif /* __ASSEMBLY__ */
++
++/*
++ * These aren't exported outside the kernel to avoid name space clashes
++ */
++#ifdef __KERNEL__
++
++#define BITS_PER_LONG 32
++
++#ifndef __ASSEMBLY__
++
++/* DMA addresses are always 32-bits wide */
++
++typedef u32 dma_addr_t;
++typedef u32 dma64_addr_t;
++
++/*
++ * XXX These are "Ubicom style" typedefs. They should be removed in all files used by linux.
++ */
++typedef u32 u32_t;
++typedef s32 s32_t;
++typedef u16 u16_t;
++typedef s16 s16_t;
++typedef u8 u8_t;
++typedef s8 s8_t;
++
++#endif /* __ASSEMBLY__ */
++
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_TYPES_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/uaccess.h
+@@ -0,0 +1,347 @@
++/*
++ * arch/ubicom32/include/asm/uaccess.h
++ * User space memory access functions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ * arch/alpha
++ */
++#ifndef _ASM_UBICOM32_UACCESS_H
++#define _ASM_UBICOM32_UACCESS_H
++
++/*
++ * User space memory access functions
++ */
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/string.h>
++
++#include <asm/segment.h>
++
++#define VERIFY_READ 0
++#define VERIFY_WRITE 1
++
++/*
++ * The exception table consists of pairs of addresses: the first is the
++ * address of an instruction that is allowed to fault, and the second is
++ * the address at which the program should continue. No registers are
++ * modified, so it is entirely up to the continuation code to figure out
++ * what to do.
++ *
++ * All the routines below use bits of fixup code that are out of line
++ * with the main instruction path. This means when everything is well,
++ * we don't even have to jump over them. Further, they do not intrude
++ * on our cache or tlb entries.
++ */
++struct exception_table_entry
++{
++ unsigned long insn, fixup;
++};
++
++/*
++ * Ubicom32 does not currently support the exception table handling.
++ */
++extern unsigned long search_exception_table(unsigned long);
++
++
++#if defined(CONFIG_ACCESS_OK_CHECKS_ENABLED)
++extern int __access_ok(unsigned long addr, unsigned long size);
++#else
++static inline int __access_ok(unsigned long addr, unsigned long size)
++{
++ return 1;
++}
++#endif
++#define access_ok(type, addr, size) \
++ likely(__access_ok((unsigned long)(addr), (size)))
++
++/*
++ * The following functions do not exist. They keep callers
++ * of put_user and get_user from passing unsupported argument
++ * types. They result in a link time error.
++ */
++extern int __put_user_bad(void);
++extern int __get_user_bad(void);
++
++/*
++ * __put_user_no_check()
++ * Put the requested data into the user space verifying the address
++ *
++ * Careful to not
++ * (a) re-use the arguments for side effects (sizeof/typeof is ok)
++ * (b) require any knowledge of processes at this stage
++ */
++#define __put_user_no_check(x, ptr, size) \
++({ \
++ int __pu_err = 0; \
++ __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
++ switch (size) { \
++ case 1: \
++ case 2: \
++ case 4: \
++ case 8: \
++ *__pu_addr = (__typeof__(*(ptr)))x; \
++ break; \
++ default: \
++ __pu_err = __put_user_bad(); \
++ break; \
++ } \
++ __pu_err; \
++})
++
++/*
++ * __put_user_check()
++ * Put the requested data into the user space verifying the address
++ *
++ * Careful to not
++ * (a) re-use the arguments for side effects (sizeof/typeof is ok)
++ * (b) require any knowledge of processes at this stage
++ *
++ * If requested, access_ok() will verify that ptr is a valid user
++ * pointer.
++ */
++#define __put_user_check(x, ptr, size) \
++({ \
++ int __pu_err = -EFAULT; \
++ __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
++ if (access_ok(VERIFY_WRITE, __pu_addr, size)) { \
++ __pu_err = 0; \
++ switch (size) { \
++ case 1: \
++ case 2: \
++ case 4: \
++ case 8: \
++ *__pu_addr = (__typeof__(*(ptr)))x; \
++ break; \
++ default: \
++ __pu_err = __put_user_bad(); \
++ break; \
++ } \
++ } \
++ __pu_err; \
++})
++
++/*
++ * __get_user_no_check()
++ * Read the value at ptr into x.
++ *
++ * If requested, access_ok() will verify that ptr is a valid user
++ * pointer. If the caller passes a modifying argument for ptr (e.g. x++)
++ * this macro will not work.
++ */
++#define __get_user_no_check(x, ptr, size) \
++({ \
++ int __gu_err = 0; \
++ __typeof__((x)) __gu_val = 0; \
++ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
++ switch (size) { \
++ case 1: \
++ case 2: \
++ case 4: \
++ case 8: \
++ __gu_val = (__typeof__((x)))*(__gu_addr); \
++ break; \
++ default: \
++ __gu_err = __get_user_bad(); \
++ (x) = 0; \
++ break; \
++ } \
++ (x) = __gu_val; \
++ __gu_err; \
++})
++
++/*
++ * __get_user_check()
++ * Read the value at ptr into x.
++ *
++ * If requested, access_ok() will verify that ptr is a valid user
++ * pointer.
++ */
++#define __get_user_check(x, ptr, size) \
++({ \
++ int __gu_err = -EFAULT; \
++ __typeof__(x) __gu_val = 0; \
++ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
++ if (access_ok(VERIFY_READ, __gu_addr, size)) { \
++ __gu_err = 0; \
++ switch (size) { \
++ case 1: \
++ case 2: \
++ case 4: \
++ case 8: \
++ __gu_val = (__typeof__((x)))*(__gu_addr); \
++ break; \
++ default: \
++ __gu_err = __get_user_bad(); \
++ (x) = 0; \
++ break; \
++ } \
++ } \
++ (x) = __gu_val; \
++ __gu_err; \
++})
++
++/*
++ * The "xxx" versions are allowed to perform some amount of address
++ * space checking. See access_ok().
++ */
++#define put_user(x,ptr) \
++ __put_user_check((__typeof__(*(ptr)))(x),(ptr), sizeof(*(ptr)))
++#define get_user(x,ptr) \
++ __get_user_check((x), (ptr), sizeof(*(ptr)))
++
++/*
++ * The "__xxx" versions do not do address space checking, useful when
++ * doing multiple accesses to the same area (the programmer has to do the
++ * checks by hand with "access_ok()")
++ */
++#define __put_user(x,ptr) \
++ __put_user_no_check((__typeof__(*(ptr)))(x),(ptr), sizeof(*(ptr)))
++#define __get_user(x,ptr) \
++ __get_user_no_check((x), (ptr), sizeof(*(ptr)))
++
++/*
++ * __copy_tofrom_user_no_check()
++ * Copy the data either to or from user space.
++ *
++ * Return the number of bytes NOT copied.
++ */
++static inline unsigned long
++__copy_tofrom_user_no_check(void *to, const void *from, unsigned long n)
++{
++ memcpy(to, from, n);
++ return 0;
++}
++
++/*
++ * copy_to_user()
++ * Copy the kernel data to user space.
++ *
++ * Return the number of bytes that were copied.
++ */
++static inline unsigned long
++copy_to_user(void __user *to, const void *from, unsigned long n)
++{
++ if (!access_ok(VERIFY_WRITE, to, n)) {
++ return n;
++ }
++ return __copy_tofrom_user_no_check((__force void *)to, from, n);
++}
++
++/*
++ * copy_from_user()
++ * Copy the user data to kernel space.
++ *
++ * Return the number of bytes that were copied. On error, we zero
++ * out the destination.
++ */
++static inline unsigned long
++copy_from_user(void *to, const void __user *from, unsigned long n)
++{
++ if (!access_ok(VERIFY_READ, from, n)) {
++ return n;
++ }
++ return __copy_tofrom_user_no_check(to, (__force void *)from, n);
++}
++
++#define __copy_to_user(to, from, n) \
++ __copy_tofrom_user_no_check((__force void *)to, from, n)
++#define __copy_from_user(to, from, n) \
++ __copy_tofrom_user_no_check(to, (__force void *)from, n)
++#define __copy_to_user_inatomic(to, from, n) \
++ __copy_tofrom_user_no_check((__force void *)to, from, n)
++#define __copy_from_user_inatomic(to, from, n) \
++ __copy_tofrom_user_no_check(to, (__force void *)from, n)
++
++#define copy_to_user_ret(to, from, n, retval) \
++ ({ if (copy_to_user(to, from, n)) return retval; })
++
++#define copy_from_user_ret(to, from, n, retval) \
++ ({ if (copy_from_user(to, from, n)) return retval; })
++
++/*
++ * strncpy_from_user()
++ * Copy a null terminated string from userspace.
++ *
++ * dst - Destination in kernel space. The buffer must be at least count.
++ * src - Address of string in user space.
++ * count - Maximum number of bytes to copy (including the trailing NULL).
++ *
++ * Returns the length of the string (not including the trailing NULL. If
++ * count is smaller than the length of the string, we copy count bytes
++ * and return count.
++ *
++ */
++static inline long strncpy_from_user(char *dst, const __user char *src, long count)
++{
++ char *tmp;
++ if (!access_ok(VERIFY_READ, src, 1)) {
++ return -EFAULT;
++ }
++
++ strncpy(dst, src, count);
++ for (tmp = dst; *tmp && count > 0; tmp++, count--) {
++ ;
++ }
++ return(tmp - dst);
++}
++
++/*
++ * strnlen_user()
++ * Return the size of a string (including the ending 0)
++ *
++ * Return -EFAULT on exception, a value greater than <n> if too long
++ */
++static inline long strnlen_user(const __user char *src, long n)
++{
++ if (!access_ok(VERIFY_READ, src, 1)) {
++ return -EFAULT;
++ }
++ return(strlen(src) + 1);
++}
++
++#define strlen_user(str) strnlen_user(str, 32767)
++
++/*
++ * __clear_user()
++ * Zero Userspace
++ */
++static inline unsigned long __clear_user(__user void *to, unsigned long n)
++{
++ memset(to, 0, n);
++ return 0;
++}
++
++/*
++ * clear_user()
++ * Zero user space (check for valid addresses)
++ */
++static inline unsigned long clear_user(__user void *to, unsigned long n)
++{
++ if (!access_ok(VERIFY_WRITE, to, n)) {
++ return -EFAULT;
++ }
++ return __clear_user(to, n);
++}
++
++#endif /* _ASM_UBICOM32_UACCESS_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubi32-cs4384.h
+@@ -0,0 +1,53 @@
++/*
++ * arch/ubicom32/include/asm/ubi32-cs4384.h
++ * Ubicom32 architecture CS4384 driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_UBI32_CS4384_H
++#define _ASM_UBICOM32_UBI32_CS4384_H
++
++enum ubi32_cs4384_mclk_source {
++ UBI32_CS4384_MCLK_PWM_0,
++ UBI32_CS4384_MCLK_PWM_1,
++ UBI32_CS4384_MCLK_PWM_2,
++ UBI32_CS4384_MCLK_CLKDIV_1,
++ UBI32_CS4384_MCLK_OTHER,
++};
++
++struct ubi32_cs4384_mclk_entry {
++ /*
++ * Rate, in Hz, of this entry
++ */
++ int rate;
++
++ /*
++ * The divider to program to get the rate
++ */
++ int div;
++};
++
++struct ubi32_cs4384_platform_data {
++ enum ubi32_cs4384_mclk_source mclk_src;
++
++ int n_mclk;
++ struct ubi32_cs4384_mclk_entry *mclk_entries;
++};
++#endif /* _ASM_UBICOM32_UBI32_CS4384_H */
++
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubi32-pcm.h
+@@ -0,0 +1,53 @@
++/*
++ * arch/ubicom32/include/asm/ubi32-pcm.h
++ * Ubicom32 architecture PCM driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_UBI32_PCM_H
++#define _ASM_UBICOM32_UBI32_PCM_H
++
++/*
++ * This function is called when the sample rate has changed
++ */
++typedef int (*ubi32_pcm_set_rate_fn_t)(void *appdata, int rate);
++
++struct ubi32pcm_platform_data {
++ /*
++ * Name of the audiotio node
++ */
++ const char *node_name;
++
++ /*
++ * Application specific data provided when calling functions
++ */
++ void *appdata;
++
++ /*
++ * Functions called when various things happen
++ */
++ ubi32_pcm_set_rate_fn_t set_rate;
++
++ /*
++ * Pointer to optional upper layer data (i.e. DAC config, etc)
++ */
++ void *priv_data;
++};
++#endif /* _ASM_UBICOM32_UBI32_PCM_H */
++
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32bl.h
+@@ -0,0 +1,84 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32bl.h
++ * Ubicom32 architecture backlight driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_BL_H
++#define _ASM_UBICOM32_UBICOM32_BL_H
++
++/*
++ * Different backlight control mechanisms
++ */
++enum ubicom32bl_pwm_types {
++ /*
++ * PWM controlled backlight
++ */
++ UBICOM32BL_TYPE_PWM,
++
++ /*
++ * HRT based PWM backlight
++ */
++ UBICOM32BL_TYPE_PWM_HRT,
++
++ /*
++ * No dimming, just on or off
++ */
++ UBICOM32BL_TYPE_BINARY,
++};
++
++struct ubicom32bl_platform_data {
++ /*
++ * Default intensity of the backlight 0-255
++ */
++ u8_t default_intensity;
++
++ /*
++ * TRUE if the backlight sense is active low. (inverted)
++ * FALSE if the backlight sense is active high.
++ */
++ bool invert;
++
++ /*
++ * Type of the backlight
++ */
++ enum ubicom32bl_pwm_types type;
++
++ /*
++ * GPIO of the backlight if UBICOM32BL_TYPE_PWM_HRT, UBICOM32BL_TYPE_BINARY
++ */
++ unsigned gpio;
++
++ /*
++ * PWM channel and parameters of the backlight if UBICOM32BL_TYPE_PWM
++ * pre_scaler: sets the rate at which the PWM timer is clocked. (clk_core / 2^pre_scaler)
++ * period: sets the period of the timer in timer cycles
++ * The duty cycle will be directly proportional to the brightness setting.
++ */
++ u32_t pwm_channel;
++ u8_t pwm_prescale;
++ u16_t pwm_period;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_BL_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32-common-asm.h
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32-common-asm.h
++ * Ubicom32 atomic lock operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32_COMMON_ASM_H
++#define _ASM_UBICOM32_UBICOM32_COMMON_ASM_H
++
++/*
++ * atomic_lock_acquire macro
++ * Equivalent to __atomic_lock_acquire()
++ */
++.macro atomic_lock_acquire
++ bset scratchpad1, scratchpad1, #ATOMIC_LOCK_BIT
++ jmpne.f .-4
++.endm
++
++/*
++ * atomic_lock_release macro
++ * Equivalent to __atomic_lock_release()
++ */
++.macro atomic_lock_release
++ bclr scratchpad1, scratchpad1, #ATOMIC_LOCK_BIT
++.endm
++
++#endif /* _ASM_UBICOM32_UBICOM32_COMMON_ASM_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32-common.h
+@@ -0,0 +1,124 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32-common.h
++ * Ubicom32 atomic lock operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32_COMMON_H
++#define _ASM_UBICOM32_UBICOM32_COMMON_H
++
++#define S(arg) #arg
++#define D(arg) S(arg)
++/*
++ * scratchpad1 is owned by the LDSR.
++ *
++ * The upper bits provide 16 global spinlocks. Acquiring one of these
++ * global spinlocks synchornizes across multiple threads and prevents
++ * the LDSR from delivering any interrupts while the lock is held.
++ * Use these locks only when absolutely required.
++ *
++ * The lower 16 bits of scratchpad1 are used as per thread interrupt
++ * enable/disable bits. These bits will prevent a thread from receiving
++ * any interrupts.
++ *
++ * Bit Usage:
++ * - MT_EN_LOCK_BIT - Protects writes to MT_EN, so code can read current value
++ * then write a new value atomically (profiler for example)
++ * - ATOMIC_LOCK_BIT - Used to provide general purpose atomic handling.
++ * - LDSR_LOCK_BIT - Used by the LDSR exclusively to provide protection.
++ * - LSB 16 bits - Used by the LDSR to represent thread enable/disable bits.
++ */
++#define MT_EN_LOCK_BIT 31
++#define ATOMIC_LOCK_BIT 30
++#define LDSR_LOCK_BIT 29
++#define PCI_LOCK_BIT 28
++
++#if !defined(__ASSEMBLY__)
++
++#define UBICOM32_TRYLOCK(bit) \
++ asm volatile ( \
++ " move.4 %0, #0 \n\t" \
++ " bset scratchpad1, scratchpad1, #"D(bit)" \n\t" \
++ " jmpne.f 1f \n\t" \
++ " move.4 %0, #1 \n\t" \
++ "1: \n\t" \
++ : "=r" (ret) \
++ : \
++ : "cc", "memory" \
++ ); \
++
++#define UBICOM32_UNLOCK(bit) \
++ asm volatile ( \
++ " bclr scratchpad1, scratchpad1, #"D(bit)" \n\t" \
++ : \
++ : \
++ : "cc", "memory" \
++ ); \
++
++#define UBICOM32_LOCK(bit) \
++ asm volatile ( \
++ "1: bset scratchpad1, scratchpad1, #"D(bit)" \n\t" \
++ " jmpne.f 1b \n\t" \
++ : \
++ : \
++ : "cc", "memory" \
++ ); \
++
++/*
++ * __atomic_lock_trylock()
++ * Attempt to acquire the lock, return TRUE if acquired.
++ */
++static inline int __atomic_lock_trylock(void)
++{
++ int ret;
++ UBICOM32_TRYLOCK(ATOMIC_LOCK_BIT);
++ return ret;
++}
++
++/*
++ * __atomic_lock_release()
++ * Release the global atomic lock.
++ *
++ * Note: no one is suspended waiting since this lock is a spinning lock.
++ */
++static inline void __atomic_lock_release(void)
++{
++ UBICOM32_UNLOCK(ATOMIC_LOCK_BIT);
++}
++
++/*
++ * __atomic_lock_acquire()
++ * Acquire the global atomic lock, spin if not available.
++ */
++static inline void __atomic_lock_acquire(void)
++{
++ UBICOM32_LOCK(ATOMIC_LOCK_BIT);
++}
++#else /* __ASSEMBLY__ */
++
++#include <asm/ubicom32-common-asm.h>
++
++#endif /* __ASSEMBLY__ */
++#endif /* _ASM_UBICOM32_UBICOM32_COMMON_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32fb.h
+@@ -0,0 +1,56 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32fb.h
++ * Ubicom32 architecture video frame buffer definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_UBICOM32FB_H
++#define _ASM_UBICOM32_UBICOM32FB_H
++
++#include <linux/ioctl.h>
++
++/*
++ * Set next frame
++ */
++#define UBICOM32FB_IOCTL_SET_NEXT_FRAME _IOW('r', 1, void *)
++#define UBICOM32FB_IOCTL_SET_NEXT_FRAME_SYNC _IOW('r', 2, void *)
++
++/*
++ * Set Mode
++ */
++#define UBICOM32FB_IOCTL_SET_MODE _IOW('r', 3, void *)
++struct ubicom32fb_mode {
++ unsigned long width;
++ unsigned long height;
++ unsigned long flags;
++ void *next_frame;
++};
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_SCAN_ORDER (1 << 8)
++
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_BLOCK_ORDER (1 << 7)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV (1 << 6)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_VSUB (1 << 5)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_16_255 (1 << 4)
++
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_0_255 (1 << 3)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_2_1 (1 << 2)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_1_1 (1 << 1)
++#define UBICOM32FB_IOCTL_SET_MODE_FLAG_SCALE_ENABLE (1 << 0)
++
++#endif /* _ASM_UBICOM32_UBICOM32FB_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32hid.h
+@@ -0,0 +1,133 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32hid.h
++ * Ubicom32 architecture HID driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_HID_H
++#define _ASM_UBICOM32_UBICOM32_HID_H
++
++enum ubicom32hid_bl_types {
++ /*
++ * On or off, using command SET_BL_EN, PB4
++ */
++ UBICOM32HID_BL_TYPE_BINARY,
++
++ /*
++ * Dimmable, using command SET_PWM, PB3
++ */
++ UBICOM32HID_BL_TYPE_PWM,
++};
++
++/*
++ * IR code mapping to event code.
++ * If there are no button mappings and no ir mappings
++ * then no input driver will be registered.
++ */
++struct ubicom32hid_ir {
++ /*
++ * Input event code (KEY_*, SW_*, etc)
++ */
++ int code;
++
++ /*
++ * Input event type (EV_KEY, EV_SW, etc)
++ */
++ int type;
++
++ /*
++ * The IR code of this button.
++ */
++ uint32_t ir_code;
++};
++
++/*
++ * Button mapping to event code.
++ * If there are no button mappings and no ir mappings
++ * then no input driver will be registered.
++ */
++struct ubicom32hid_button {
++ /*
++ * Input event code (KEY_*, SW_*, etc)
++ */
++ int code;
++
++ /*
++ * Input event type (EV_KEY, EV_SW, etc)
++ */
++ int type;
++
++ /*
++ * Bit number of this button.
++ */
++ uint8_t bit;
++};
++
++struct ubicom32hid_platform_data {
++ /*
++ * Default intensity of the backlight 0-255
++ */
++ u8_t default_intensity;
++
++ /*
++ * GPIO number of the reset line and its polarity.
++ */
++ unsigned gpio_reset;
++ int gpio_reset_polarity;
++
++ /*
++ * TRUE if the backlight sense is active low. (inverted)
++ * FALSE if the backlight sense is active high.
++ */
++ bool invert;
++
++ /*
++ * Type of the backlight we are controlling
++ */
++ enum ubicom32hid_bl_types type;
++
++ /*
++ * Optional polling rate for input, in ms, defaults to 100ms
++ */
++ int poll_interval;
++
++ /*
++ * Optional name to register as input device
++ */
++ const char *input_name;
++
++ /*
++ * Button mapping array
++ */
++ const struct ubicom32hid_button *buttons;
++ int nbuttons;
++
++ /*
++ * IR mapping array
++ */
++ const struct ubicom32hid_ir *ircodes;
++ int nircodes;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_HID_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32input.h
+@@ -0,0 +1,76 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32input.h
++ * Ubicom32 Input driver, based on gpio-keys
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ *
++ * TODO: add groups for inputs which can be sampled together
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32_INPUT_H
++#define _ASM_UBICOM32_UBICOM32_INPUT_H
++
++struct ubicom32input_button {
++ /*
++ * Input event code (KEY_*, SW_*, etc)
++ */
++ int code;
++
++ /*
++ * Input event type (EV_KEY, EV_SW, etc)
++ */
++ int type;
++
++ /*
++ * GPIO to poll
++ */
++ int gpio;
++
++ /*
++ * 1 for active low, 0 for active high
++ */
++ int active_low;
++
++ /*
++ * Description, used for reserving GPIOs
++ */
++ const char *desc;
++};
++
++struct ubicom32input_platform_data {
++ struct ubicom32input_button *buttons;
++ int nbuttons;
++
++ /*
++ * Optional poll interval, in ms, defaults to 50ms
++ */
++ int poll_interval;
++
++ /*
++ * Option Name of this driver
++ */
++ const char *name;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_INPUT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32input_i2c.h
+@@ -0,0 +1,71 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32input_i2c.h
++ * Ubicom32 architecture Input driver over I2C platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ *
++ * TODO: add groups for inputs which can be sampled together
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32_INPUT_I2C_H
++#define _ASM_UBICOM32_UBICOM32_INPUT_I2C_H
++
++struct ubicom32input_i2c_button {
++ /*
++ * Input event code (KEY_*, SW_*, etc)
++ */
++ int code;
++
++ /*
++ * Input event type (EV_KEY, EV_SW, etc)
++ */
++ int type;
++
++ /*
++ * Bit number of this button. (0 - ngpio)
++ */
++ int bit;
++
++ /*
++ * 1 for active low, 0 for active high
++ */
++ int active_low;
++};
++
++struct ubicom32input_i2c_platform_data {
++ struct ubicom32input_i2c_button *buttons;
++ int nbuttons;
++
++ /*
++ * Optional poll interval, in ms, defaults to 100ms
++ */
++ int poll_interval;
++
++ /*
++ * Option Name of this driver
++ */
++ const char *name;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_INPUT_I2C_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32lcd.h
+@@ -0,0 +1,39 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32lcd.h
++ * Ubicom32 architecture LCD driver platform data definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_LCD_H
++#define _ASM_UBICOM32_UBICOM32_LCD_H
++
++struct ubicom32lcd_platform_data {
++ /*
++ * GPIO and polarity for VGH signal. A FALSE polarity is active low, TRUE is active high.
++ */
++ int vgh_gpio;
++ bool vgh_polarity;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_LCD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32ring.h
+@@ -0,0 +1,103 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32ring.h
++ * Userspace I/O platform driver for Ubicom32 ring buffers
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef _ASM_UBICOM32_UBICOM32RING_H
++#define _ASM_UBICOM32_UBICOM32RING_H
++
++#define UIO_UBICOM32RING_REG_VERSION 2
++
++struct uio_ubicom32ring_desc {
++ volatile unsigned int head;
++ volatile unsigned int tail;
++ unsigned int entries;
++ volatile unsigned int ring[0];
++};
++
++struct uio_ubicom32ring_regs {
++ unsigned int version;
++
++ /*
++ * Magic type used to identify the ring set. Each driver will
++ * have a different magic value.
++ */
++ unsigned int magic;
++
++ /*
++ * Registers defined by the driver
++ */
++ unsigned int regs_size;
++ void *regs;
++
++ /*
++ * The locations of the rings
++ *
++ * DO NOT ADD ANYTHING BELOW THIS LINE
++ */
++ unsigned int num_rings;
++ struct uio_ubicom32ring_desc *rings[0];
++};
++
++/*
++ * ringtio_ring_flush
++ */
++static inline void ringtio_ring_flush(struct uio_ubicom32ring_desc *rd)
++{
++ rd->head = rd->tail = 0;
++}
++
++/*
++ * ringtio_ring_get
++ */
++static inline int ringtio_ring_get(struct uio_ubicom32ring_desc *rd, void **val)
++{
++ if (rd->head == rd->tail) {
++ return 0;
++ }
++
++ *val = (void *)rd->ring[rd->head++];
++ if (rd->head == rd->entries) {
++ rd->head = 0;
++ }
++ return 1;
++}
++
++/*
++ * ringtio_ring_put
++ */
++static inline int ringtio_ring_put(struct uio_ubicom32ring_desc *rd, void *val)
++{
++ unsigned int newtail = rd->tail + 1;
++ if (newtail == rd->entries) {
++ newtail = 0;
++ }
++
++ if (newtail == rd->head) {
++ return 0;
++ }
++
++ rd->ring[rd->tail] = (unsigned int)val;
++ rd->tail = newtail;
++ return 1;
++}
++
++#endif /* _ASM_UBICOM32_UBICOM32RING_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32sd.h
+@@ -0,0 +1,45 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32sd.h
++ * Ubicom32SD public include file
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_SD_H
++#define _ASM_UBICOM32_UBICOM32_SD_H
++
++struct ubicom32sd_card {
++ /*
++ * GPIOs of PWR, WP and CD lines.
++ * Polarity is 1 for active high and 0 for active low
++ */
++ int pin_pwr;
++ bool pwr_polarity;
++ int pin_wp;
++ bool wp_polarity;
++ int pin_cd;
++ bool cd_polarity;
++};
++
++struct ubicom32sd_platform_data {
++ int ncards;
++
++ struct ubicom32sd_card *cards;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_SD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32-spi-gpio.h
+@@ -0,0 +1,62 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32-spi-gpio.h
++ * Platform driver data definitions for GPIO based SPI driver.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_SPI_GPIO_H
++#define _ASM_UBICOM32_UBICOM32_SPI_GPIO_H
++
++struct ubicom32_spi_gpio_platform_data {
++ /*
++ * GPIO to use for MOSI, MISO, CLK
++ */
++ int pin_mosi;
++ int pin_miso;
++ int pin_clk;
++
++ /*
++ * Default state of CLK line
++ */
++ int clk_default;
++
++ /*
++ * Number of chip selects on this bus
++ */
++ int num_chipselect;
++
++ /*
++ * The bus number of this chip
++ */
++ int bus_num;
++};
++
++struct ubicom32_spi_gpio_controller_data {
++ /*
++ * GPIO to use for chip select
++ */
++ int pin_cs;
++};
++
++#endif /* _ASM_UBICOM32_UBICOM32_SPI_GPIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32suart.h
+@@ -0,0 +1,36 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32suart.h
++ * <TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_SUART_H
++#define _ASM_UBICOM32_UBICOM32_SUART_H
++
++/*
++ * Platform resource id for serdes uart clock parameter
++ */
++#define UBICOM32_SUART_IORESOURCE_CLOCK (1)
++
++#endif /* _ASM_UBICOM32_UBICOM32_SUART_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ubicom32-tio.h
+@@ -0,0 +1,42 @@
++/*
++ * arch/ubicom32/include/asm/ubicom32-tio.h
++ * Threaded I/O interface definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UBICOM32_TIO_H
++#define _ASM_UBICOM32_UBICOM32_TIO_H
++
++extern u8_t usb_tio_read_u16(u32_t address, u16_t *data);
++extern u8_t usb_tio_read_u8(u32_t address, u8_t *data);
++
++extern u8_t usb_tio_write_u16(u32_t address, u16_t data);
++extern u8_t usb_tio_write_u8(u32_t address, u8_t data);
++
++extern u8_t usb_tio_read_fifo(u32_t address, u32_t buffer, u32_t bytes);
++extern u8_t usb_tio_write_fifo(u32_t address, u32_t buffer, u32_t bytes);
++extern u8_t usb_tio_write_fifo_sync(u32_t address, u32_t buffer, u32_t bytes);
++extern void usb_tio_read_int_status(u8_t *int_usb, u16_t *int_tx, u16_t *int_rx);
++
++#endif /* _ASM_UBICOM32_UBICOM32_TIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/ucontext.h
+@@ -0,0 +1,39 @@
++/*
++ * arch/ubicom32/include/asm/ucontext.h
++ * Definition of ucontext structure for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UCONTEXT_H
++#define _ASM_UBICOM32_UCONTEXT_H
++
++struct ucontext {
++ unsigned long uc_flags;
++ struct ucontext *uc_link;
++ stack_t uc_stack;
++ struct sigcontext uc_mcontext;
++ sigset_t uc_sigmask; /* mask last for extensibility */
++};
++
++#endif /* _ASM_UBICOM32_UCONTEXT_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/unaligned.h
+@@ -0,0 +1,44 @@
++/*
++ * arch/ubicom32/include/asm/unaligned.h
++ * Ubicom32 architecture unaligned memory access definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ *
++ * TODO: This is a copy of arm unaligned handling that probably needs
++ * to be optimized for UBICOM32, but it works for now.
++ */
++
++#ifndef _ASM_UBICOM32_UNALIGNED_H
++#define _ASM_UBICOM32_UNALIGNED_H
++
++#include <asm/types.h>
++
++#include <linux/unaligned/le_byteshift.h>
++#include <linux/unaligned/be_byteshift.h>
++#include <linux/unaligned/generic.h>
++
++#define get_unaligned __get_unaligned_be
++#define put_unaligned __put_unaligned_be
++
++#endif /* _ASM_UBICOM32_UNALIGNED_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/unistd.h
+@@ -0,0 +1,400 @@
++/*
++ * arch/ubicom32/include/asm/unistd.h
++ * Ubicom32 architecture syscall definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_UNISTD_H
++#define _ASM_UBICOM32_UNISTD_H
++
++/*
++ * This file contains the system call numbers.
++ */
++
++#define __NR_restart_syscall 0
++#define __NR_exit 1
++#define __NR_fork 2
++#define __NR_read 3
++#define __NR_write 4
++#define __NR_open 5
++#define __NR_close 6
++#define __NR_waitpid 7
++#define __NR_creat 8
++#define __NR_link 9
++#define __NR_unlink 10
++#define __NR_execve 11
++#define __NR_chdir 12
++#define __NR_time 13
++#define __NR_mknod 14
++#define __NR_chmod 15
++#define __NR_chown 16
++#define __NR_break 17
++#define __NR_oldstat 18
++#define __NR_lseek 19
++#define __NR_getpid 20
++#define __NR_mount 21
++#define __NR_umount 22
++#define __NR_setuid 23
++#define __NR_getuid 24
++#define __NR_stime 25
++#define __NR_ptrace 26
++#define __NR_alarm 27
++#define __NR_oldfstat 28
++#define __NR_pause 29
++#define __NR_utime 30
++#define __NR_stty 31
++#define __NR_gtty 32
++#define __NR_access 33
++#define __NR_nice 34
++#define __NR_ftime 35
++#define __NR_sync 36
++#define __NR_kill 37
++#define __NR_rename 38
++#define __NR_mkdir 39
++#define __NR_rmdir 40
++#define __NR_dup 41
++#define __NR_pipe 42
++#define __NR_times 43
++#define __NR_prof 44
++#define __NR_brk 45
++#define __NR_setgid 46
++#define __NR_getgid 47
++#define __NR_signal 48
++#define __NR_geteuid 49
++#define __NR_getegid 50
++#define __NR_acct 51
++#define __NR_umount2 52
++#define __NR_lock 53
++#define __NR_ioctl 54
++#define __NR_fcntl 55
++#define __NR_mpx 56
++#define __NR_setpgid 57
++#define __NR_ulimit 58
++#define __NR_oldolduname 59
++#define __NR_umask 60
++#define __NR_chroot 61
++#define __NR_ustat 62
++#define __NR_dup2 63
++#define __NR_getppid 64
++#define __NR_getpgrp 65
++#define __NR_setsid 66
++#define __NR_sigaction 67
++#define __NR_sgetmask 68
++#define __NR_ssetmask 69
++#define __NR_setreuid 70
++#define __NR_setregid 71
++#define __NR_sigsuspend 72
++#define __NR_sigpending 73
++#define __NR_sethostname 74
++#define __NR_setrlimit 75
++#define __NR_getrlimit 76
++#define __NR_getrusage 77
++#define __NR_gettimeofday 78
++#define __NR_settimeofday 79
++#define __NR_getgroups 80
++#define __NR_setgroups 81
++#define __NR_select 82
++#define __NR_symlink 83
++#define __NR_oldlstat 84
++#define __NR_readlink 85
++#define __NR_uselib 86
++#define __NR_swapon 87
++#define __NR_reboot 88
++#define __NR_readdir 89
++#define __NR_mmap 90
++#define __NR_munmap 91
++#define __NR_truncate 92
++#define __NR_ftruncate 93
++#define __NR_fchmod 94
++#define __NR_fchown 95
++#define __NR_getpriority 96
++#define __NR_setpriority 97
++#define __NR_profil 98
++#define __NR_statfs 99
++#define __NR_fstatfs 100
++#define __NR_ioperm 101
++#define __NR_socketcall 102
++#define __NR_syslog 103
++#define __NR_setitimer 104
++#define __NR_getitimer 105
++#define __NR_stat 106
++#define __NR_lstat 107
++#define __NR_fstat 108
++#define __NR_olduname 109
++#define __NR_iopl /* 110 */ not supported
++#define __NR_vhangup 111
++#define __NR_idle /* 112 */ Obsolete
++#define __NR_vm86 /* 113 */ not supported
++#define __NR_wait4 114
++#define __NR_swapoff 115
++#define __NR_sysinfo 116
++#define __NR_ipc 117
++#define __NR_fsync 118
++#define __NR_sigreturn 119
++#define __NR_clone 120
++#define __NR_setdomainname 121
++#define __NR_uname 122
++#define __NR_cacheflush 123
++#define __NR_adjtimex 124
++#define __NR_mprotect 125
++#define __NR_sigprocmask 126
++#define __NR_create_module 127
++#define __NR_init_module 128
++#define __NR_delete_module 129
++#define __NR_get_kernel_syms 130
++#define __NR_quotactl 131
++#define __NR_getpgid 132
++#define __NR_fchdir 133
++#define __NR_bdflush 134
++#define __NR_sysfs 135
++#define __NR_personality 136
++#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
++#define __NR_setfsuid 138
++#define __NR_setfsgid 139
++#define __NR__llseek 140
++#define __NR_getdents 141
++#define __NR__newselect 142
++#define __NR_flock 143
++#define __NR_msync 144
++#define __NR_readv 145
++#define __NR_writev 146
++#define __NR_getsid 147
++#define __NR_fdatasync 148
++#define __NR__sysctl 149
++#define __NR_mlock 150
++#define __NR_munlock 151
++#define __NR_mlockall 152
++#define __NR_munlockall 153
++#define __NR_sched_setparam 154
++#define __NR_sched_getparam 155
++#define __NR_sched_setscheduler 156
++#define __NR_sched_getscheduler 157
++#define __NR_sched_yield 158
++#define __NR_sched_get_priority_max 159
++#define __NR_sched_get_priority_min 160
++#define __NR_sched_rr_get_interval 161
++#define __NR_nanosleep 162
++#define __NR_mremap 163
++#define __NR_setresuid 164
++#define __NR_getresuid 165
++#define __NR_getpagesize 166
++#define __NR_query_module 167
++#define __NR_poll 168
++#define __NR_nfsservctl 169
++#define __NR_setresgid 170
++#define __NR_getresgid 171
++#define __NR_prctl 172
++#define __NR_rt_sigreturn 173
++#define __NR_rt_sigaction 174
++#define __NR_rt_sigprocmask 175
++#define __NR_rt_sigpending 176
++#define __NR_rt_sigtimedwait 177
++#define __NR_rt_sigqueueinfo 178
++#define __NR_rt_sigsuspend 179
++#define __NR_pread64 180
++#define __NR_pwrite64 181
++#define __NR_lchown 182
++#define __NR_getcwd 183
++#define __NR_capget 184
++#define __NR_capset 185
++#define __NR_sigaltstack 186
++#define __NR_sendfile 187
++#define __NR_getpmsg 188 /* some people actually want streams */
++#define __NR_putpmsg 189 /* some people actually want streams */
++#define __NR_vfork 190
++#define __NR_ugetrlimit 191
++#define __NR_mmap2 192
++#define __NR_truncate64 193
++#define __NR_ftruncate64 194
++#define __NR_stat64 195
++#define __NR_lstat64 196
++#define __NR_fstat64 197
++#define __NR_chown32 198
++#define __NR_getuid32 199
++#define __NR_getgid32 200
++#define __NR_geteuid32 201
++#define __NR_getegid32 202
++#define __NR_setreuid32 203
++#define __NR_setregid32 204
++#define __NR_getgroups32 205
++#define __NR_setgroups32 206
++#define __NR_fchown32 207
++#define __NR_setresuid32 208
++#define __NR_getresuid32 209
++#define __NR_setresgid32 210
++#define __NR_getresgid32 211
++#define __NR_lchown32 212
++#define __NR_setuid32 213
++#define __NR_setgid32 214
++#define __NR_setfsuid32 215
++#define __NR_setfsgid32 216
++#define __NR_pivot_root 217
++#define __NR_getdents64 220
++#define __NR_gettid 221
++#define __NR_tkill 222
++#define __NR_setxattr 223
++#define __NR_lsetxattr 224
++#define __NR_fsetxattr 225
++#define __NR_getxattr 226
++#define __NR_lgetxattr 227
++#define __NR_fgetxattr 228
++#define __NR_listxattr 229
++#define __NR_llistxattr 230
++#define __NR_flistxattr 231
++#define __NR_removexattr 232
++#define __NR_lremovexattr 233
++#define __NR_fremovexattr 234
++#define __NR_futex 235
++#define __NR_sendfile64 236
++#define __NR_mincore 237
++#define __NR_madvise 238
++#define __NR_fcntl64 239
++#define __NR_readahead 240
++#define __NR_io_setup 241
++#define __NR_io_destroy 242
++#define __NR_io_getevents 243
++#define __NR_io_submit 244
++#define __NR_io_cancel 245
++#define __NR_fadvise64 246
++#define __NR_exit_group 247
++#define __NR_lookup_dcookie 248
++#define __NR_epoll_create 249
++#define __NR_epoll_ctl 250
++#define __NR_epoll_wait 251
++#define __NR_remap_file_pages 252
++#define __NR_set_tid_address 253
++#define __NR_timer_create 254
++#define __NR_timer_settime 255
++#define __NR_timer_gettime 256
++#define __NR_timer_getoverrun 257
++#define __NR_timer_delete 258
++#define __NR_clock_settime 259
++#define __NR_clock_gettime 260
++#define __NR_clock_getres 261
++#define __NR_clock_nanosleep 262
++#define __NR_statfs64 263
++#define __NR_fstatfs64 264
++#define __NR_tgkill 265
++#define __NR_utimes 266
++#define __NR_fadvise64_64 267
++#define __NR_mbind 268
++#define __NR_get_mempolicy 269
++#define __NR_set_mempolicy 270
++#define __NR_mq_open 271
++#define __NR_mq_unlink 272
++#define __NR_mq_timedsend 273
++#define __NR_mq_timedreceive 274
++#define __NR_mq_notify 275
++#define __NR_mq_getsetattr 276
++#define __NR_waitid 277
++#define __NR_vserver 278
++#define __NR_add_key 279
++#define __NR_request_key 280
++#define __NR_keyctl 281
++#define __NR_ioprio_set 282
++#define __NR_ioprio_get 283
++#define __NR_inotify_init 284
++#define __NR_inotify_add_watch 285
++#define __NR_inotify_rm_watch 286
++#define __NR_migrate_pages 287
++#define __NR_openat 288
++#define __NR_mkdirat 289
++#define __NR_mknodat 290
++#define __NR_fchownat 291
++#define __NR_futimesat 292
++#define __NR_fstatat64 293
++#define __NR_unlinkat 294
++#define __NR_renameat 295
++#define __NR_linkat 296
++#define __NR_symlinkat 297
++#define __NR_readlinkat 298
++#define __NR_fchmodat 299
++#define __NR_faccessat 300
++#define __NR_pselect6 301
++#define __NR_ppoll 302
++#define __NR_unshare 303
++#define __NR_set_robust_list 304
++#define __NR_get_robust_list 305
++#define __NR_splice 306
++#define __NR_sync_file_range 307
++#define __NR_tee 308
++#define __NR_vmsplice 309
++#define __NR_move_pages 310
++#define __NR_sched_setaffinity 311
++#define __NR_sched_getaffinity 312
++#define __NR_kexec_load 313
++#define __NR_getcpu 314
++#define __NR_epoll_pwait 315
++#define __NR_utimensat 316
++#define __NR_signalfd 317
++#define __NR_timerfd_create 318
++#define __NR_eventfd 319
++#define __NR_fallocate 320
++#define __NR_timerfd_settime 321
++#define __NR_timerfd_gettime 322
++#define __NR_signalfd4 323
++#define __NR_eventfd2 324
++#define __NR_epoll_create1 325
++#define __NR_dup3 326
++#define __NR_pipe2 327
++#define __NR_inotify_init1 328
++
++#ifdef __KERNEL__
++
++#define NR_syscalls 329
++
++#define __ARCH_WANT_IPC_PARSE_VERSION
++#define __ARCH_WANT_OLD_READDIR
++#define __ARCH_WANT_OLD_STAT
++#define __ARCH_WANT_STAT64
++#define __ARCH_WANT_SYS_ALARM
++#define __ARCH_WANT_SYS_GETHOSTNAME
++#define __ARCH_WANT_SYS_PAUSE
++#define __ARCH_WANT_SYS_SGETMASK
++#define __ARCH_WANT_SYS_SIGNAL
++#define __ARCH_WANT_SYS_TIME
++#define __ARCH_WANT_SYS_UTIME
++#define __ARCH_WANT_SYS_WAITPID
++#define __ARCH_WANT_SYS_SOCKETCALL
++#define __ARCH_WANT_SYS_FADVISE64
++#define __ARCH_WANT_SYS_GETPGRP
++#define __ARCH_WANT_SYS_LLSEEK
++#define __ARCH_WANT_SYS_NICE
++#define __ARCH_WANT_SYS_OLD_GETRLIMIT
++#define __ARCH_WANT_SYS_OLDUMOUNT
++#define __ARCH_WANT_SYS_SIGPENDING
++#define __ARCH_WANT_SYS_SIGPROCMASK
++#define __ARCH_WANT_SYS_RT_SIGACTION
++
++/*
++ * "Conditional" syscalls
++ *
++ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
++ * but it doesn't work on all toolchains, so we just do it by hand
++ */
++//#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
++#define cond_syscall(x) long x(void) __attribute__((weak,alias("sys_ni_syscall")))
++#endif /* __KERNEL__ */
++
++#endif /* _ASM_UBICOM32_UNISTD_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/user.h
+@@ -0,0 +1,82 @@
++/*
++ * arch/ubicom32/include/asm/user.h
++ * Ubicom32 architecture core file definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_USER_H
++#define _ASM_UBICOM32_USER_H
++
++#include <asm/ptrace.h>
++#include <asm/page.h>
++/*
++ * Adapted from <asm-powerpc/user.h>
++ *
++ * Core file format: The core file is written in such a way that gdb
++ * can understand it and provide useful information to the user (under
++ * linux we use the `trad-core' bfd, NOT the osf-core). The file contents
++ * are as follows:
++ *
++ * upage: 1 page consisting of a user struct that tells gdb
++ * what is present in the file. Directly after this is a
++ * copy of the task_struct, which is currently not used by gdb,
++ * but it may come in handy at some point. All of the registers
++ * are stored as part of the upage. The upage should always be
++ * only one page long.
++ * data: The data segment follows next. We use current->end_text to
++ * current->brk to pick up all of the user variables, plus any memory
++ * that may have been sbrk'ed. No attempt is made to determine if a
++ * page is demand-zero or if a page is totally unused, we just cover
++ * the entire range. All of the addresses are rounded in such a way
++ * that an integral number of pages is written.
++ * stack: We need the stack information in order to get a meaningful
++ * backtrace. We need to write the data from usp to
++ * current->start_stack, so we round each of these in order to be able
++ * to write an integer number of pages.
++ */
++
++struct user_ubicom32fp_struct {
++};
++
++struct user {
++ struct pt_regs regs; /* entire machine state */
++ size_t u_tsize; /* text size (pages) */
++ size_t u_dsize; /* data size (pages) */
++ size_t u_ssize; /* stack size (pages) */
++ unsigned long start_code; /* text starting address */
++ unsigned long start_data; /* data starting address */
++ unsigned long start_stack; /* stack starting address */
++ long int signal; /* signal causing core dump */
++ unsigned long u_ar0; /* help gdb find registers */
++ unsigned long magic; /* identifies a core file */
++ char u_comm[32]; /* user command name */
++};
++
++#define NBPG PAGE_SIZE
++#define UPAGES 1
++#define HOST_TEXT_START_ADDR (u.start_code)
++#define HOST_DATA_START_ADDR (u.start_data)
++#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
++
++#endif /* _ASM_UBICOM32_USER_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/vdc_tio.h
+@@ -0,0 +1,129 @@
++/*
++ * arch/ubicom32/include/asm/vdc_tio.h
++ * Ubicom32 architecture VDC TIO definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_VDC_TIO_H
++#define _ASM_UBICOM32_VDC_TIO_H
++
++#include <asm/devtree.h>
++
++#define VDCTIO_VP_VERSION 5
++
++#define VDCTIO_SCALE_FLAG_VSUB (1 << 9)
++#define VDCTIO_SCALE_FLAG_YUV_SCAN_ORDER (1 << 8)
++#define VDCTIO_SCALE_FLAG_YUV_BLOCK_ORDER (1 << 7)
++#define VDCTIO_SCALE_FLAG_YUV (1 << 6)
++#define VDCTIO_SCALE_FLAG_VRANGE_16_255 (1 << 5)
++#define VDCTIO_SCALE_FLAG_VRANGE_0_255 (1 << 4)
++#define VDCTIO_SCALE_FLAG_HSUB_2_1 (1 << 3)
++#define VDCTIO_SCALE_FLAG_HSUB_1_1 (1 << 2)
++#define VDCTIO_SCALE_FLAG_SET_FRAME_BUFFER (1 << 1)
++#define VDCTIO_SCALE_FLAG_ENABLE (1 << 0)
++
++#define VDCTIO_NEXT_FRAME_FLAG_YUV_BIT 0
++#define VDCTIO_NEXT_FRAME_FLAG_YUV (1 << (VDCTIO_NEXT_FRAME_FLAG_YUV_BIT))
++
++#define VDCTIO_CAPS_SUPPORTS_SCALING (1 << 0)
++
++#define VDCTIO_COMMAND_START (1 << 3)
++#define VDCTIO_COMMAND_SET_COEFF (1 << 2)
++#define VDCTIO_COMMAND_SET_LUT (1 << 1)
++#define VDCTIO_COMMAND_SET_SCALE_MODE (1 << 0)
++
++/*
++ * Command / Data registers to access the VDC
++ */
++struct vdc_tio_vp_regs {
++ /*
++ * Version of this TIO register map
++ */
++ u32_t version;
++
++ volatile u32_t command;
++
++ /*
++ * Next frame pointer, when the command VDCTIO_COMMAND_SET_FRAME_BUFFER is set,
++ * the vdc will take the pointer here and display it.
++ */
++ void *next_frame;
++ u32_t next_frame_flags;
++
++ /*
++ * These map directly into the PIXP registers 0x20-0x80.
++ * DO NOT change the order of these three variables.
++ */
++ u32_t red_lut[6];
++ u32_t blue_lut[6];
++ u32_t green_lut[13];
++
++ /*
++ * These map directly into the PIXP registers 0x04, 0x08
++ */
++ u32_t coeff0;
++ u32_t coeff1;
++
++ /*
++ * There are used to set the scaling parameters
++ */
++ u32_t x_in;
++ u32_t x_out;
++ u32_t y_in;
++ u32_t y_out;
++ u32_t scale_flags;
++
++ /*
++ * Current frame number, monotonically increasing number
++ */
++ u32_t frame_number;
++
++ /*
++ * These variables tell the guest OS what the underlying hardware looks like
++ */
++ u32_t caps;
++ u32_t xres;
++ u32_t yres;
++ u32_t fb_align;
++ u8_t bpp;
++ u8_t rbits;
++ u8_t gbits;
++ u8_t bbits;
++ u8_t rshift;
++ u8_t gshift;
++ u8_t bshift;
++};
++
++/*
++ * Devtree node for VDC
++ */
++struct vdc_tio_node {
++ struct devtree_node dn;
++
++ struct vdc_tio_vp_regs *regs;
++};
++
++extern void vdc_tio_init(void);
++
++#endif /* _ASM_UBICOM32_VDC_TIO_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/vga.h
+@@ -0,0 +1,71 @@
++/*
++ * arch/ubicom32/include/asm/vga.h
++ * Ubicom32 low level VGA/frame buffer definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (c) 1998 Martin Mares <mj@ucw.cz>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#ifndef _ASM_UBICOM32_VGA_H
++#define _ASM_UBICOM32_VGA_H
++
++#include <asm/byteorder.h>
++
++/*
++ * On the PC, we can just recalculate addresses and then
++ * access the videoram directly without any black magic.
++ */
++
++#define VGA_MAP_MEM(x, s) (0xb0000000L + (unsigned long)(x))
++
++#define vga_readb(x) (*(x))
++#define vga_writeb(x, y) (*(y) = (x))
++
++#define VT_BUF_HAVE_RW
++/*
++ * These are only needed for supporting VGA or MDA text mode, which use little
++ * endian byte ordering.
++ * In other cases, we can optimize by using native byte ordering and
++ * <linux/vt_buffer.h> has already done the right job for us.
++ */
++
++#undef scr_writew
++#undef scr_readw
++
++static inline void scr_writew(u16 val, volatile u16 *addr)
++{
++ *addr = cpu_to_le16(val);
++}
++
++static inline u16 scr_readw(volatile const u16 *addr)
++{
++ return le16_to_cpu(*addr);
++}
++
++#define scr_memcpyw(d, s, c) memcpy(d, s, c)
++#define scr_memmovew(d, s, c) memmove(d, s, c)
++#define VT_BUF_HAVE_MEMCPYW
++#define VT_BUF_HAVE_MEMMOVEW
++
++#endif /* _ASM_UBICOM32_VGA_H */
+--- /dev/null
++++ b/arch/ubicom32/include/asm/xor.h
+@@ -0,0 +1,33 @@
++/*
++ * arch/ubicom32/include/asm/xor.h
++ * Generic xor.h definitions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _ASM_UBICOM32_XOR_H
++#define _ASM_UBICOM32_XOR_H
++
++#include <asm-generic/xor.h>
++
++#endif /* _ASM_UBICOM32_XOR_H */
+--- /dev/null
++++ b/arch/ubicom32/Kconfig
+@@ -0,0 +1,455 @@
++#
++# For a description of the syntax of this configuration file,
++# see Documentation/kbuild/kconfig-language.txt.
++#
++
++mainmenu "uClinux/ubicom32 (w/o MMU) Kernel Configuration"
++
++config RAMBASE
++ hex
++ default "0x40000000"
++ help
++ Define the address that RAM starts at.
++
++config UBICOM32
++ bool
++ select HAVE_OPROFILE
++ default y
++
++config RAMKERNEL
++ bool
++ default y
++
++config CPU_BIG_ENDIAN
++ bool
++ default y
++
++config FORCE_MAX_ZONEORDER
++ int
++ default "14"
++
++config HAVE_CLK
++ bool
++ default y
++
++config MMU
++ bool
++ default n
++
++config FPU
++ bool
++ default n
++
++config ZONE_DMA
++ bool
++ default y
++
++config RWSEM_GENERIC_SPINLOCK
++ bool
++ default y
++
++config RWSEM_XCHGADD_ALGORITHM
++ bool
++ default n
++
++config ARCH_HAS_ILOG2_U32
++ bool
++ default n
++
++config ARCH_HAS_ILOG2_U64
++ bool
++ default n
++
++config GENERIC_FIND_NEXT_BIT
++ bool
++ default y
++
++config GENERIC_GPIO
++ bool
++ default y
++
++config GPIOLIB
++ bool
++ default y
++
++config GENERIC_HWEIGHT
++ bool
++ default y
++
++config GENERIC_HARDIRQS
++ bool
++ default y
++
++config STACKTRACE_SUPPORT
++ bool
++ default y
++
++config LOCKDEP_SUPPORT
++ bool
++ default y
++
++config GENERIC_CALIBRATE_DELAY
++ bool
++ default y
++
++config GENERIC_TIME
++ bool
++ default y
++
++config TIME_LOW_RES
++ bool
++ default y
++
++config GENERIC_CLOCKEVENTS
++ bool
++ default y
++
++config GENERIC_CLOCKEVENTS_BROADCAST
++ bool
++ depends on GENERIC_CLOCKEVENTS
++ default y if SMP && !LOCAL_TIMERS
++
++config NO_IOPORT
++ def_bool y
++
++config ARCH_SUPPORTS_AOUT
++ def_bool y
++
++config IRQ_PER_CPU
++ bool
++ default y
++
++config SCHED_NO_NO_OMIT_FRAME_POINTER
++ bool
++ default y
++
++menu "Processor type and features"
++
++config BRD_32MB
++ bool
++ depends on IP5160EVAL
++ help
++ Board has 32MB of RAM on it. It is a hidden option used to select default for size of RAM
++ default n
++
++config BRD_64MB
++ bool
++ depends on IP7145DPF || IP7160RGW || IP7160BRINGUP || IP7160DPF || IP5170DPF || IP5160DEV
++ help
++ Board has 64MB of RAM on it. It is a hidden option used to select default for size of RAM
++ default n
++
++config BRD_128MB
++ bool
++ depends on IP7500MODULE || IP7500AV || IP7500MEDIA
++ help
++ Board has 128MB of RAM on it. It is a hidden option used to select default for size of RAM
++ default n
++
++comment "Processor type will be selected by Board"
++
++config UBICOM32_V3
++ bool
++ help
++ Ubicom IP5xxx series processor support.
++
++config UBICOM32_V4
++ bool
++ help
++ Ubicom IP7xxx series processor support.
++
++comment "Board"
++choice
++ prompt "Board type"
++ help
++ Select your board.
++
++config NOBOARD
++ bool "No board selected"
++ help
++ Default. Don't select any board specific config. Will not build unless you change!
++
++# Add your boards here
++source "arch/ubicom32/mach-ip5k/Kconfig"
++source "arch/ubicom32/mach-ip7k/Kconfig"
++
++endchoice
++
++comment "Kernel Options"
++config SMP
++ bool "Symmetric multi-processing support"
++ select USE_GENERIC_SMP_HELPERS
++ default n
++ help
++ Enables multithreading support. Enabling SMP support increases
++ the size of system data structures. SMP support can have either
++ positive or negative impact on performance depending on workloads.
++
++ If you do not know what to do here, say N.
++
++config NR_CPUS
++ int "Number of configured CPUs"
++ range 2 32
++ default 2
++ depends on SMP
++ help
++ Upper bound on the number of CPUs. Space is reserved
++ at compile time for this many CPUs.
++
++config LOCAL_TIMERS
++ bool "Use local timer interrupts"
++ depends on SMP
++ default y
++ help
++ Enable support for local timers on SMP platforms, rather then the
++ legacy IPI broadcast method. Local timers allows the system
++ accounting to be spread across the timer interval, preventing a
++ "thundering herd" at every timer tick. A physical timer is allocated
++ per cpu.
++
++config TIMER_EXTRA_ALLOC
++ int "Number of additional physical timer events to create"
++ depends on GENERIC_CLOCKEVENTS
++ default 0
++ help
++ The Ubicom32 processor has a number of event timers that can be wrapped
++ in Linux clock event structures (assuming that the timers are not being
++ used for another purpose). Based on the value of LOCAL_TIMERS, either
++ 2 timers will be used or a timer will be used for every CPU. This value
++ allows the programmer to select additional timers over that amount.
++
++config IRQSTACKS
++ bool "Create separate stacks for interrupt handling"
++ default n
++ help
++ Selecting this causes interrupts to be created on a separate
++ stack instead of nesting the interrupts on the kernel stack.
++
++config IRQSTACKS_USEOCM
++ bool "Use OCM for interrupt stacks"
++ default n
++ depends on IRQSTACKS
++ help
++ Selecting this cause the interrupt stacks to be placed in OCM
++ reducing cache misses at the expense of using the OCM for servicing
++ interrupts.
++
++menu "OCM Instruction Heap"
++
++config OCM_MODULES_RESERVATION
++ int "OCM Instruction heap reservation. 0-192 kB"
++ range 0 192
++ default "0"
++ help
++ The minimum amount of OCM memory to reserve for kernel loadable module
++ code. If you are not using this memory it cannot be used for anything
++ else. Leave it as 0 if you have prebuilt modules that are compiled with
++ OCM support.
++
++config OCM_MODULES_MAY_CONSUME_REMAINING_CODESPACE
++ bool "Give all unused ocm code space to the ocm instruction heap."
++ default n
++ help
++ Allow the OCM instruction heap allocation to consume any remaining
++ unused OCM code space. The result of this is that you will not have
++ and deterministic results, but you will not have any waste either.
++
++config OCM_MODULES_FALLBACK_TO_DDR
++ bool "Loadable Modules requiring OCM may fallback to use DDR."
++ default n
++ help
++ If a module cannot get the OCM code it requires allow DDR to
++ be used instead.
++endmenu
++
++config HZ
++ int "Frequency of 'jiffies' (for polling)"
++ default 1000
++ help
++ 100 is common for embedded systems, but 1000 allows
++ you to do more drivers without actually having
++ interrupts working properly.
++
++comment "RAM configuration"
++
++if BRD_32MB
++
++config RAMSIZE
++ hex "Size of RAM (in bytes)"
++ range 0x00000000 0x02000000
++ default "0x02000000"
++ help
++ Define the size of the system RAM. If you select 0 then the
++ kernel will try to probe the RAM size at runtime. This is not
++ supported on all CPU types.
++
++endif
++
++if BRD_64MB
++
++config RAMSIZE
++ hex "Size of RAM (in bytes)"
++ range 0x00000000 0x04000000
++ default "0x04000000"
++ help
++ Define the size of the system RAM. If you select 0 then the
++ kernel will try to probe the RAM size at runtime. This is not
++ supported on all CPU types.
++
++endif
++
++if BRD_128MB
++
++config RAMSIZE
++ hex "Size of RAM (in bytes)"
++ range 0x00000000 0x08000000
++ default "0x08000000"
++ help
++ Define the size of the system RAM. If you select 0 then the
++ kernel will try to probe the RAM size at runtime. This is not
++ supported on all CPU types.
++
++endif
++
++config KERNELBASE
++ hex "Address of the base of kernel code"
++ default "0x40400000"
++ help
++ For the time being we are going to start the Kernel at a 4 meg offset.
++
++comment "Build options"
++config LINKER_RELAXATION
++ bool "Linker Relaxation"
++ default y
++ help
++ Turns on linker relaxation that will produce smaller
++ faster code. Increases link time.
++
++comment "Driver options"
++menu "PCI Bus"
++config PCI
++ bool "PCI bus"
++ default true
++ help
++ Enable/Disable PCI bus
++ source "drivers/pci/Kconfig"
++
++
++config PCI_DEV0_IDSEL
++ hex "slot 0 address"
++ depends on PCI
++ default "0x01000000"
++ help
++ Slot 0 address. This address should correspond to the address line
++ which the IDSEL bit for this slot is connected to.
++
++config PCI_DEV1_IDSEL
++ hex "slot 1 address"
++ depends on PCI
++ default "0x02000000"
++ help
++ Slot 1 address. This address should correspond to the address line
++ which the IDSEL bit for this slot is connected to.
++endmenu
++# End PCI
++
++menu "Input devices"
++config UBICOM_INPUT
++ bool "Ubicom polled GPIO input driver"
++ select INPUT
++ select INPUT_POLLDEV
++ help
++ Polling input driver, much like the GPIO input driver, except that it doesn't
++ rely on interrupts. It will report events via the input subsystem.
++ default n
++
++config UBICOM_INPUT_I2C
++ bool "Ubicom polled GPIO input driver over I2C"
++ select INPUT
++ select INPUT_POLLDEV
++ help
++ Polling input driver, much like the PCA953x driver, it can support a variety of
++ different I2C I/O expanders. This device polls the I2C I/O expander for events
++ and reports them via the input subsystem.
++ default n
++endmenu
++# Input devices
++
++menu "Misc devices"
++config UBICOM_HID
++ bool "Ubicom HID driver"
++ select INPUT
++ select INPUT_POLLDEV
++ select LCD_CLASS_DEVICE
++ help
++ Driver for HID chip found on some Ubicom reference designs. This chip handles
++ PWM, button input, and IR remote control. It registers as an input device and
++ a backlight device.
++ default n
++endmenu
++# Misc devices
++
++config CMDLINE_BOOL
++ bool "Built-in kernel command line"
++ default n
++ help
++ Allow for specifying boot arguments to the kernel at
++ build time. On some systems (e.g. embedded ones), it is
++ necessary or convenient to provide some or all of the
++ kernel boot arguments with the kernel itself (that is,
++ to not rely on the boot loader to provide them.)
++
++ To compile command line arguments into the kernel,
++ set this option to 'Y', then fill in the
++ the boot arguments in CONFIG_CMDLINE.
++
++ Systems with fully functional boot loaders (i.e. non-embedded)
++ should leave this option set to 'N'.
++
++config CMDLINE
++ string "Built-in kernel command string"
++ depends on CMDLINE_BOOL
++ default ""
++ help
++ Enter arguments here that should be compiled into the kernel
++ image and used at boot time. If the boot loader provides a
++ command line at boot time, it is appended to this string to
++ form the full kernel command line, when the system boots.
++
++ However, you can use the CONFIG_CMDLINE_OVERRIDE option to
++ change this behavior.
++
++ In most cases, the command line (whether built-in or provided
++ by the boot loader) should specify the device for the root
++ file system.
++
++config CMDLINE_OVERRIDE
++ bool "Built-in command line overrides boot loader arguments"
++ default n
++ depends on CMDLINE_BOOL
++ help
++ Set this option to 'Y' to have the kernel ignore the boot loader
++ command line, and use ONLY the built-in command line.
++
++ This is used to work around broken boot loaders. This should
++ be set to 'N' under normal conditions.
++
++endmenu
++# End Processor type and features
++
++source "arch/ubicom32/Kconfig.debug"
++
++menu "Executable file formats"
++source "fs/Kconfig.binfmt"
++endmenu
++
++source "init/Kconfig"
++source "kernel/Kconfig.preempt"
++source "kernel/time/Kconfig"
++source "mm/Kconfig"
++source "net/Kconfig"
++source "drivers/Kconfig"
++source "fs/Kconfig"
++source "security/Kconfig"
++source "crypto/Kconfig"
++source "lib/Kconfig"
+--- /dev/null
++++ b/arch/ubicom32/Kconfig.debug
+@@ -0,0 +1,117 @@
++menu "Kernel hacking"
++
++config TRACE_IRQFLAGS_SUPPORT
++ def_bool y
++
++config PROTECT_KERNEL
++ default y
++ bool 'Enable Kernel range register Protection'
++ help
++ Adds code to enable/disable range registers to protect static
++ kernel code/data from userspace. Currently the ranges covered
++ do no protect kernel loadable modules or dynamically allocated
++ kernel data.
++
++config NO_KERNEL_MSG
++ bool "Suppress Kernel BUG Messages"
++ help
++ Do not output any debug BUG messages within the kernel.
++
++config EARLY_PRINTK
++ bool "Use the driver that you selected as console also for early printk (to debug kernel bootup)."
++ default n
++ help
++ If you want to use the serdes driver (console=ttyUS0) for
++ early printk, you must also supply an additional kernel boot
++ parameter like this:
++
++ serdes=ioportaddr,irq,clockrate,baud
++
++ For an IP7160RGW eval board, you could use this:
++
++ serdes=0x2004000,61,250000000,57600
++
++ which will let you see early printk output at 57600 baud.
++
++config STOP_ON_TRAP
++ bool "Enable stopping at the LDSR for all traps"
++ default n
++ help
++ Cause the LDSR to stop all threads whenever a trap is about to be serviced
++
++config STOP_ON_BUG
++ bool "Enable stopping on failed BUG_ON()"
++ default n
++ help
++ Cause all BUG_ON failures to stop all threads
++
++config DEBUG_IRQMEASURE
++ bool "Enable IRQ handler measurements"
++ default n
++ help
++ When enabled each IRQ's min/avg/max times will be printed. If the handler
++ re-enables interrupt, the times will show the full time including to service
++ nested interrupts. See /proc/irq_measurements.
++
++config DEBUG_PCIMEASURE
++ bool "Enable PCI transaction measurements"
++ default n
++ help
++ When enabled the system will measure the min/avg/max timer for each PCI transactions.
++ See /proc/pci_measurements.
++
++config ACCESS_OK_CHECKS_ENABLED
++ bool "Enable user space access checks"
++ default n
++ help
++ Enabling this check causes the kernel to verify that addresses passed
++ to the kernel by the user space code are within the processes
++ address space. On a no-mmu system, this is done by examining the
++ processes memory data structures (adversly affecting performance) but
++ ensuring that a process does not ask the kernel to violate another
++ processes address space. Sadly, the kernel uses access_ok() for
++ address that are in the kernel which results in a large volume of
++ false positives.
++
++choice
++ prompt "Unaligned Access Support"
++ default UNALIGNED_ACCESS_ENABLED
++ help
++ Kernel / Userspace unaligned access handling.
++
++config UNALIGNED_ACCESS_ENABLED
++ bool "Kernel and Userspace"
++ help
++
++config UNALIGNED_ACCESS_USERSPACE_ONLY
++ bool "Userspace Only"
++ help
++
++config UNALIGNED_ACCESS_DISABLED
++ bool "Disabled"
++ help
++
++endchoice
++
++config DEBUG_STACKOVERFLOW
++ bool "Check for stack overflows"
++ default n
++ depends on DEBUG_KERNEL
++ help
++ This option will cause messages to be printed if free kernel stack space
++ drops below a certain limit (THREAD_SIZE /8).
++
++config DEBUG_STACK_USAGE
++ bool "Stack utilization instrumentation"
++ default n
++ depends on DEBUG_KERNEL
++ help
++ Enables the display of the minimum amount of free kernel stack which each
++ task has ever had available in the sysrq-T and sysrq-P debug output.
++
++ This option will slow down process creation somewhat.
++
++source "lib/Kconfig.debug"
++
++endmenu
++
+--- /dev/null
++++ b/arch/ubicom32/kernel/asm-offsets.c
+@@ -0,0 +1,162 @@
++/*
++ * arch/ubicom32/kernel/asm-offsets.c
++ * Ubicom32 architecture definitions needed by assembly language modules.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++/*
++ * This program is used to generate definitions needed by
++ * assembly language modules.
++ *
++ * We use the technique used in the OSF Mach kernel code:
++ * generate asm statements containing #defines,
++ * compile this file to assembler, and then extract the
++ * #defines from the assembly-language output.
++ */
++
++#include <linux/module.h>
++#include <linux/stddef.h>
++#include <linux/sched.h>
++#include <linux/kernel_stat.h>
++#include <linux/ptrace.h>
++#include <linux/hardirq.h>
++#include <asm/bootinfo.h>
++#include <asm/irq.h>
++#include <asm/thread_info.h>
++
++#define DEFINE(sym, val) \
++ asm volatile("\n->" #sym " %0 " #val : : "i" (val))
++
++#define BLANK() asm volatile("\n->" : : )
++
++int main(void)
++{
++ /* offsets into the task struct */
++ DEFINE(TASK_STATE, offsetof(struct task_struct, state));
++ DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
++ DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
++ DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
++ DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
++ DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
++ DEFINE(TASK_MM, offsetof(struct task_struct, mm));
++ DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
++
++ /* offsets into the kernel_stat struct */
++ DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
++
++ /* offsets into the irq_cpustat_t struct */
++ DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
++
++ /* offsets into the thread struct */
++ DEFINE(THREAD_D10, offsetof(struct thread_struct, d10));
++ DEFINE(THREAD_D11, offsetof(struct thread_struct, d11));
++ DEFINE(THREAD_D12, offsetof(struct thread_struct, d12));
++ DEFINE(THREAD_D13, offsetof(struct thread_struct, d13));
++ DEFINE(THREAD_A1, offsetof(struct thread_struct, a1));
++ DEFINE(THREAD_A2, offsetof(struct thread_struct, a2));
++ DEFINE(THREAD_A5, offsetof(struct thread_struct, a5));
++ DEFINE(THREAD_A6, offsetof(struct thread_struct, a6));
++ DEFINE(THREAD_SP, offsetof(struct thread_struct, sp));
++
++ /* offsets into the pt_regs */
++ DEFINE(PT_D0, offsetof(struct pt_regs, dn[0]));
++ DEFINE(PT_D1, offsetof(struct pt_regs, dn[1]));
++ DEFINE(PT_D2, offsetof(struct pt_regs, dn[2]));
++ DEFINE(PT_D3, offsetof(struct pt_regs, dn[3]));
++ DEFINE(PT_D4, offsetof(struct pt_regs, dn[4]));
++ DEFINE(PT_D5, offsetof(struct pt_regs, dn[5]));
++ DEFINE(PT_D6, offsetof(struct pt_regs, dn[6]));
++ DEFINE(PT_D7, offsetof(struct pt_regs, dn[7]));
++ DEFINE(PT_D8, offsetof(struct pt_regs, dn[8]));
++ DEFINE(PT_D9, offsetof(struct pt_regs, dn[9]));
++ DEFINE(PT_D10, offsetof(struct pt_regs, dn[10]));
++ DEFINE(PT_D11, offsetof(struct pt_regs, dn[11]));
++ DEFINE(PT_D12, offsetof(struct pt_regs, dn[12]));
++ DEFINE(PT_D13, offsetof(struct pt_regs, dn[13]));
++ DEFINE(PT_D14, offsetof(struct pt_regs, dn[14]));
++ DEFINE(PT_D15, offsetof(struct pt_regs, dn[15]));
++ DEFINE(PT_A0, offsetof(struct pt_regs, an[0]));
++ DEFINE(PT_A1, offsetof(struct pt_regs, an[1]));
++ DEFINE(PT_A2, offsetof(struct pt_regs, an[2]));
++ DEFINE(PT_A3, offsetof(struct pt_regs, an[3]));
++ DEFINE(PT_A4, offsetof(struct pt_regs, an[4]));
++ DEFINE(PT_A5, offsetof(struct pt_regs, an[5]));
++ DEFINE(PT_A6, offsetof(struct pt_regs, an[6]));
++ DEFINE(PT_A7, offsetof(struct pt_regs, an[7]));
++ DEFINE(PT_SP, offsetof(struct pt_regs, an[7]));
++
++ DEFINE(PT_ACC0HI, offsetof(struct pt_regs, acc0[0]));
++ DEFINE(PT_ACC0LO, offsetof(struct pt_regs, acc0[1]));
++ DEFINE(PT_MAC_RC16, offsetof(struct pt_regs, mac_rc16));
++
++ DEFINE(PT_ACC1HI, offsetof(struct pt_regs, acc1[0]));
++ DEFINE(PT_ACC1LO, offsetof(struct pt_regs, acc1[1]));
++
++ DEFINE(PT_SOURCE3, offsetof(struct pt_regs, source3));
++ DEFINE(PT_INST_CNT, offsetof(struct pt_regs, inst_cnt));
++ DEFINE(PT_CSR, offsetof(struct pt_regs, csr));
++ DEFINE(PT_DUMMY_UNUSED, offsetof(struct pt_regs, dummy_unused));
++
++ DEFINE(PT_INT_MASK0, offsetof(struct pt_regs, int_mask0));
++ DEFINE(PT_INT_MASK1, offsetof(struct pt_regs, int_mask1));
++
++ DEFINE(PT_PC, offsetof(struct pt_regs, pc));
++
++ DEFINE(PT_TRAP_CAUSE, offsetof(struct pt_regs, trap_cause));
++
++ DEFINE(PT_SIZE, sizeof(struct pt_regs));
++
++ DEFINE(PT_FRAME_TYPE, offsetof(struct pt_regs, frame_type));
++
++ DEFINE(PT_ORIGINAL_D0, offsetof(struct pt_regs, original_dn_0));
++ DEFINE(PT_PREVIOUS_PC, offsetof(struct pt_regs, previous_pc));
++
++ /* offsets into the kernel_stat struct */
++ DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
++
++ /* signal defines */
++ DEFINE(SIGSEGV, SIGSEGV);
++ //DEFINE(SEGV_MAPERR, SEGV_MAPERR);
++ DEFINE(SIGTRAP, SIGTRAP);
++ //DEFINE(TRAP_TRACE, TRAP_TRACE);
++
++ DEFINE(PT_PTRACED, PT_PTRACED);
++ DEFINE(PT_DTRACE, PT_DTRACE);
++
++ DEFINE(ASM_THREAD_SIZE, THREAD_SIZE);
++
++ /* Offsets in thread_info structure */
++ DEFINE(TI_TASK, offsetof(struct thread_info, task));
++ DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
++ DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
++ DEFINE(TI_PREEMPTCOUNT, offsetof(struct thread_info, preempt_count));
++ DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
++ DEFINE(TI_INTR_NESTING, offsetof(struct thread_info, interrupt_nesting));
++ DEFINE(ASM_TIF_NEED_RESCHED, TIF_NEED_RESCHED);
++ DEFINE(ASM_TIF_SYSCALL_TRACE, TIF_SYSCALL_TRACE);
++ DEFINE(ASM_TIF_SIGPENDING, TIF_SIGPENDING);
++
++ DEFINE(ASM_RAM_END, (CONFIG_RAMBASE + CONFIG_RAMSIZE));
++ return 0;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/devtree.c
+@@ -0,0 +1,173 @@
++/*
++ * arch/ubicom32/kernel/devtree.c
++ * Ubicom32 architecture device tree implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/errno.h>
++#include <asm/devtree.h>
++
++/*
++ * The device tree.
++ */
++struct devtree_node *devtree;
++
++/*
++ * devtree_print()
++ * Print the device tree.
++ */
++void devtree_print(void)
++{
++ struct devtree_node *p = devtree;
++ printk(KERN_INFO "Device Tree:\n");
++ while (p) {
++ if (p->magic != DEVTREE_NODE_MAGIC) {
++ printk(KERN_EMERG
++ "device tree has improper node: %p\n", p);
++ return;
++ }
++ printk(KERN_INFO "\t%p: sendirq=%03d, recvirq=%03d, "
++ " name=%s\n", p, p->sendirq, p->recvirq, p->name);
++ p = p->next;
++ }
++}
++EXPORT_SYMBOL(devtree_print);
++
++/*
++ * devtree_irq()
++ * Return the IRQ(s) associated with devtree node.
++ */
++int devtree_irq(struct devtree_node *dn,
++ unsigned char *sendirq,
++ unsigned char *recvirq)
++{
++ if (dn->magic != DEVTREE_NODE_MAGIC) {
++ printk(KERN_EMERG "improper node: %p\n", dn);
++ if (sendirq) {
++ *sendirq = DEVTREE_IRQ_NONE;
++ }
++ if (recvirq) {
++ *recvirq = DEVTREE_IRQ_NONE;
++ }
++ return -EFAULT;
++ }
++
++ /*
++ * Copy the devtree irq(s) to the output parameters.
++ */
++ if (sendirq) {
++ *sendirq = dn->sendirq;
++ }
++ if (recvirq) {
++ *recvirq = dn->recvirq;
++ }
++ return 0;
++}
++EXPORT_SYMBOL(devtree_irq);
++
++/*
++ * devtree_find_next()
++ * Provide an iterator for walking the device tree.
++ */
++struct devtree_node *devtree_find_next(struct devtree_node **cur)
++{
++ struct devtree_node *p = *cur;
++ if (!p) {
++ *cur = devtree;
++ return devtree;
++ }
++ p = p->next;
++ *cur = p;
++ return p;
++}
++
++/*
++ * devtree_find_by_irq()
++ * Return the node associated with a given irq.
++ */
++struct devtree_node *devtree_find_by_irq(uint8_t sendirq, uint8_t recvirq)
++{
++ struct devtree_node *p = devtree;
++
++ if (sendirq == recvirq) {
++ printk(KERN_EMERG "identical request makes no sense sendirq = "
++ "%d, recvirq= %d\n", sendirq, recvirq);
++ return NULL;
++ }
++
++ while (p) {
++ if (p->magic != DEVTREE_NODE_MAGIC) {
++ printk(KERN_EMERG
++ "device tree has improper node: %p\n", p);
++ return NULL;
++ }
++
++ /*
++ * See if we can find a match on the IRQ(s) specified.
++ */
++ if ((sendirq == p->sendirq) && (recvirq == p->recvirq)) {
++ return p;
++ }
++
++ if ((sendirq == DEVTREE_IRQ_DONTCARE) &&
++ (p->recvirq == recvirq)) {
++ return p;
++ }
++
++ if ((recvirq == DEVTREE_IRQ_DONTCARE) &&
++ (p->sendirq == sendirq)) {
++ return p;
++ }
++
++ p = p->next;
++ }
++ return NULL;
++}
++EXPORT_SYMBOL(devtree_find_by_irq);
++
++/*
++ * devtree_find_node()
++ * Find a node in the device tree by name.
++ */
++struct devtree_node *devtree_find_node(const char *str)
++{
++ struct devtree_node *p = devtree;
++ while (p) {
++ if (p->magic != DEVTREE_NODE_MAGIC) {
++ printk(KERN_EMERG
++ "device tree has improper node: %p\n", p);
++ return NULL;
++ }
++ if (strcmp(p->name, str) == 0) {
++ return p;
++ }
++ p = p->next;
++ }
++ return NULL;
++}
++EXPORT_SYMBOL(devtree_find_node);
+--- /dev/null
++++ b/arch/ubicom32/kernel/dma.c
+@@ -0,0 +1,60 @@
++/*
++ * arch/ubicom32/kernel/dma.c
++ * Ubicom32 architecture dynamic DMA mapping support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ *
++ * We never have any address translations to worry about, so this
++ * is just alloc/free.
++ */
++
++#include <linux/types.h>
++#include <linux/mm.h>
++#include <linux/string.h>
++#include <linux/device.h>
++#include <linux/io.h>
++
++void *dma_alloc_coherent(struct device *dev, size_t size,
++ dma_addr_t *dma_handle, int gfp)
++{
++ void *ret;
++ /* ignore region specifiers */
++ gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
++
++ if (dev == NULL || (*dev->dma_mask < 0xffffffff))
++ gfp |= GFP_DMA;
++ ret = (void *)__get_free_pages(gfp, get_order(size));
++
++ if (ret != NULL) {
++ memset(ret, 0, size);
++ *dma_handle = virt_to_phys(ret);
++ }
++ return ret;
++}
++
++void dma_free_coherent(struct device *dev, size_t size,
++ void *vaddr, dma_addr_t dma_handle)
++{
++ free_pages((unsigned long)vaddr, get_order(size));
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/flat.c
+@@ -0,0 +1,206 @@
++/*
++ * arch/ubicom32/kernel/flat.c
++ * Ubicom32 architecture flat executable format support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/flat.h>
++
++unsigned long ubicom32_flat_get_addr_from_rp(unsigned long *rp,
++ u32_t relval,
++ u32_t flags,
++ unsigned long *persistent)
++{
++ u32_t relval_reloc_type = relval >> 27;
++ u32_t insn = *rp;
++
++ if (*persistent) {
++ /*
++ * relval holds the relocation that has to be adjusted.
++ */
++ if (relval == 0) {
++ *persistent = 0;
++ }
++
++ return relval;
++ }
++
++ if (relval_reloc_type == R_UBICOM32_32) {
++ /*
++ * insn holds the relocation
++ */
++ return insn;
++ }
++
++ /*
++ * We don't know this one.
++ */
++ return 0;
++}
++
++void ubicom32_flat_put_addr_at_rp(unsigned long *rp,
++ u32_t val,
++ u32_t relval,
++ unsigned long *persistent)
++{
++ u32_t reloc_type = (relval >> 27) & 0x1f;
++ u32_t insn = *rp;
++
++ /*
++ * If persistent is set then it contains the relocation type.
++ */
++ if (*persistent) {
++ /*
++ * If persistent is set then it contains the relocation type.
++ */
++ reloc_type = (*persistent >> 27) & 0x1f;
++ }
++
++ switch (reloc_type) {
++ case R_UBICOM32_32:
++ /*
++ * Store the 32 bits as is.
++ */
++ *rp = val;
++ break;
++ case R_UBICOM32_HI24:
++ {
++ /*
++ * 24 bit relocation that is part of the MOVEAI
++ * instruction. The 24 bits come from bits 7 - 30 of the
++ * relocation. The 24 bits eventually get split into 2
++ * fields in the instruction encoding.
++ *
++ * - Bits 7 - 27 of the relocation are encoded into bits
++ * 0 - 20 of the instruction.
++ *
++ * - Bits 28 - 30 of the relocation are encoded into bit
++ * 24 - 26 of the instruction.
++ */
++ u32_t mask = 0x1fffff | (0x7 << 24);
++ u32_t valid24bits = (val >> 7) & 0xffffff;
++ u32_t bot_21 = valid24bits & 0x1fffff;
++ u32_t upper_3_bits = ((valid24bits & 0xe00000) << 3);
++ insn &= ~mask;
++
++ insn |= bot_21;
++ insn |= upper_3_bits;
++ *rp = insn;
++ }
++ break;
++ case R_UBICOM32_LO7_S:
++ case R_UBICOM32_LO7_2_S:
++ case R_UBICOM32_LO7_4_S:
++ {
++ /*
++ * Bits 0 - 6 of the relocation are encoded into the
++ * 7bit unsigned immediate fields of the SOURCE-1 field
++ * of the instruction. The immediate value is left
++ * shifted by (0, 1, 2) based on the operand size.
++ */
++ u32_t mask = 0x1f | (0x3 << 8);
++ u32_t bottom, top;
++ val &= 0x7f;
++ if (reloc_type == R_UBICOM32_LO7_2_S) {
++ val >>= 1;
++ } else if (reloc_type == R_UBICOM32_LO7_4_S) {
++ val >>= 2;
++ }
++
++ bottom = val & 0x1f;
++ top = val >> 5;
++ insn &= ~mask;
++ insn |= bottom;
++ insn |= (top << 8);
++ BUG_ON(*rp != insn);
++ *rp = insn;
++ break;
++ }
++ case R_UBICOM32_LO7_D:
++ case R_UBICOM32_LO7_2_D:
++ case R_UBICOM32_LO7_4_D:
++ {
++ /*
++ * Bits 0 - 6 of the relocation are encoded into the
++ * 7bit unsigned immediate fields of the DESTINATION
++ * field of the instruction. The immediate value is
++ * left shifted by (0, 1, 2) based on the operand size.
++ */
++ u32_t mask = (0x1f | (0x3 << 8)) << 16;
++ u32_t bottom, top;
++ val &= 0x7f;
++ if (reloc_type == R_UBICOM32_LO7_2_D) {
++ val >>= 1;
++ } else if (reloc_type == R_UBICOM32_LO7_4_D) {
++ val >>= 2;
++ }
++ bottom = (val & 0x1f) << 16;
++ top = (val >> 5) << 16;
++ insn &= ~mask;
++ insn |= bottom;
++ insn |= (top << 8);
++ BUG_ON(*rp != insn);
++ *rp = insn;
++ break;
++ }
++ case R_UBICOM32_LO7_CALLI:
++ case R_UBICOM32_LO16_CALLI:
++ {
++ /*
++ * Extract the offset for a CALLI instruction. The
++ * offsets can be either 7 bits or 18 bits. Since all
++ * instructions in ubicom32 architecture are at work
++ * aligned addresses the truncated offset is right
++ * shifted by 2 before being encoded in the instruction.
++ */
++ if (reloc_type == R_UBICOM32_LO7_CALLI) {
++ val &= 0x7f;
++ } else {
++ val &= 0x3ffff;
++ }
++
++ val >>= 2;
++
++ insn &= ~0x071f071f;
++ insn |= (val & 0x1f) << 0;
++ val >>= 5;
++ insn |= (val & 0x07) << 8;
++ val >>= 3;
++ insn |= (val & 0x1f) << 16;
++ val >>= 5;
++ insn |= (val & 0x07) << 24;
++ if (reloc_type == R_UBICOM32_LO7_CALLI) {
++ BUG_ON(*rp != insn);
++ }
++ *rp = insn;
++ }
++ break;
++ }
++
++ if (*persistent) {
++ *persistent = 0;
++ }
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/head.S
+@@ -0,0 +1,247 @@
++/*
++ * arch/ubicom32/kernel/head.S
++ * <TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/sys.h>
++#include <linux/linkage.h>
++#include <asm/asm-offsets.h>
++#include <asm/page_offset.h>
++#define __ASM__
++#include <asm/ip5000.h>
++
++
++#define SRC_AN A3
++#define DST_AN A4
++
++#define PARAM_DN D0
++#define TMP_DN D15
++#define TMP2_DN D14
++
++/*
++ * The following code is placed at the start of the Linux section of memory.
++ * This is the primary entry point for Linux.
++ *
++ * However, we also want the syscall entry/exit code to be at a fixed address.
++ * So we take the primary entry point and reserve 16 bytes. That address is
++ * where the system_call entry point exists. This 16 bytes basically allows
++ * us to jump around the system_call entry point code to the actual startup
++ * code.
++ *
++ * Linux Memory Map (see vlinux.lds.S):
++ * 0x40400000 - Primary Entry Point for Linux (jump around code below).
++ * 0x40400010 - Syscall Entry Point.
++ */
++
++ .sect .skip_syscall, "ax", @progbits
++ .global __skip_syscall_section
++__skip_syscall_section:
++ moveai A3, #%hi(_start)
++ lea.1 A3, %lo(_start)(A3)
++ ret A3
++/*
++ * __os_node_offset contains the offset from KERNELBASE to the os_node, it is
++ * not intended to be used by anything except the boot code.
++ */
++__os_node_offset:
++.long (_os_node - CONFIG_KERNELBASE)
++
++.text
++.global _start
++
++/*
++ * start()
++ * This is the start of the Linux kernel.
++ */
++_start:
++ move.4 SCRATCHPAD1, #0
++
++
++/*
++ * Setup the range registers... the loader has setup a few, but we will go ahead
++ * and correct them for our own limits. Note that once set these are never
++ * changed again. The ranges are as follows
++ *
++ * D_RANGE0 - io block (set up by loaded)
++ *
++ * I_RANGE0 and D_RANGE1 - kernel/ultra loader address space bottom of ocm-> top
++ * of ram typically 0x3ffc0000 - 0x440000000
++ * I_RANGE1 - kernel / userspace transition area (aka syscalls, context switches)
++ * typically 0x40400000 - ~0x40400400
++ * I_RANGE2 / D_RANGE2 - slab area
++ * typically 0x40A00000 - ~0x44000000
++ *
++ * I_RANGE4, D_RANGE3, D_RANGE3 - unused.
++ */
++ moveai SRC_AN, #%hi(PAGE_OFFSET_RAW)
++ lea.4 SRC_AN, %lo(PAGE_OFFSET_RAW)(SRC_AN)
++ move.4 D_RANGE1_LO, SRC_AN
++ move.4 I_RANGE0_LO, SRC_AN
++
++; don't try to calculate I_RANGE_HI, see below
++; moveai SRC_AN, #%hi(___init_end-4)
++; lea.4 SRC_AN, %lo(___init_end-4)(SRC_AN)
++; move.4 I_RANGE0_HI, SRC_AN
++
++ moveai SRC_AN, #%hi(CONFIG_RAMBASE+CONFIG_RAMSIZE-4)
++ lea.4 SRC_AN, %lo(CONFIG_RAMBASE+CONFIG_RAMSIZE-4)(SRC_AN)
++ move.4 D_RANGE1_HI, SRC_AN
++
++; for now allow the whole ram to be executable as well so we don't run into problems
++; once we load user more code.
++ move.4 I_RANGE0_HI, SRC_AN
++
++#ifdef CONFIG_PROTECT_KERNEL
++; when kernel protection is enabled, we only open up syscall and non kernel text
++; for userspace apps, for now only irange registers registers 1 and 2 are used for userspace.
++
++ ;; syscall range
++ moveai SRC_AN, #%hi(_begin)
++ lea.4 SRC_AN, %lo(_begin)(SRC_AN)
++ move.4 I_RANGE1_LO, SRC_AN
++ moveai SRC_AN, #%hi(__fixed_text_end)
++ lea.4 SRC_AN, %lo(__fixed_text_end)(SRC_AN)
++ move.4 I_RANGE1_HI, SRC_AN
++
++ ;; slab instructions
++ moveai SRC_AN, #%hi(_edata)
++ lea.4 SRC_AN, %lo(_edata)(SRC_AN)
++ move.4 I_RANGE2_LO, SRC_AN
++ ;; End of DDR is already in range0 hi so just copy it.
++ move.4 I_RANGE2_HI, I_RANGE0_HI
++
++ ;; slab data (same as slab instructions but starting a little earlier).
++ moveai SRC_AN, #%hi(_data_protection_end)
++ lea.4 SRC_AN, %lo(_data_protection_end)(SRC_AN)
++ move.4 D_RANGE2_LO, SRC_AN
++ move.4 D_RANGE2_HI, I_RANGE0_HI
++
++;; enable ranges
++ ;; skip I_RANGE0_EN
++ move.4 I_RANGE1_EN, #-1
++ move.4 I_RANGE2_EN, #-1
++ move.4 I_RANGE3_EN, #0
++
++ ;; skip D_RANGE0_EN or D_RANGE1_EN
++ move.4 D_RANGE2_EN, #-1
++ move.4 D_RANGE3_EN, #0
++ move.4 D_RANGE4_EN, #0
++#endif
++
++;
++; If __ocm_free_begin is smaller than __ocm_free_end the
++; setup OCM text and data ram banks properly
++;
++ moveai DST_AN, #%hi(__ocm_free_begin)
++ lea.4 TMP_DN, %lo(__ocm_free_begin)(DST_AN)
++ moveai DST_AN, #%hi(__ocm_free_end)
++ lea.4 TMP2_DN, %lo(__ocm_free_end)(DST_AN)
++ sub.4 #0, TMP2_DN, TMP_DN
++ jmple.f 2f
++ moveai DST_AN, #%hi(__data_begin)
++ lea.4 TMP_DN, %lo(__data_begin)(DST_AN)
++ moveai DST_AN, #%hi(OCMSTART)
++ lea.4 TMP2_DN, %lo(OCMSTART)(DST_AN)
++ sub.4 TMP_DN, TMP_DN, TMP2_DN
++ lsr.4 TMP_DN, TMP_DN, #15
++ lsl.4 TMP_DN, #1, TMP_DN
++ moveai DST_AN, #%hi(OCMC_BASE)
++ add.4 OCMC_BANK_MASK(DST_AN), #-1, TMP_DN
++ pipe_flush 0
++2:
++;
++; Load .ocm_text
++;
++ moveai DST_AN, #%hi(__ocm_text_run_end)
++ lea.4 TMP_DN, %lo(__ocm_text_run_end)(DST_AN)
++ moveai DST_AN, #%hi(__ocm_text_run_begin)
++ lea.4 DST_AN, %lo(__ocm_text_run_begin)(DST_AN)
++ moveai SRC_AN, #%hi(__ocm_text_load_begin)
++ lea.4 SRC_AN, %lo(__ocm_text_load_begin)(SRC_AN)
++ jmpt.t 2f
++
++1: move.4 (DST_AN)4++, (SRC_AN)4++
++
++2: sub.4 #0, DST_AN, TMP_DN
++ jmpne.t 1b
++
++;
++; Load .ocm_data
++;
++ moveai DST_AN, #%hi(__ocm_data_run_end)
++ lea.4 TMP_DN, %lo(__ocm_data_run_end)(DST_AN)
++ moveai DST_AN, #%hi(__ocm_data_run_begin)
++ lea.4 DST_AN, %lo(__ocm_data_run_begin)(DST_AN)
++ moveai SRC_AN, #%hi(__ocm_data_load_begin)
++ lea.4 SRC_AN, %lo(__ocm_data_load_begin)(SRC_AN)
++ jmpt.t 2f
++
++1: move.4 (DST_AN)4++, (SRC_AN)4++
++
++2: sub.4 #0, DST_AN, TMP_DN
++ jmpne.t 1b
++
++; Clear .bss
++;
++ moveai SRC_AN, #%hi(_ebss)
++ lea.4 TMP_DN, %lo(_ebss)(SRC_AN)
++ moveai DST_AN, #%hi(_sbss)
++ lea.4 DST_AN, %lo(_sbss)(DST_AN)
++ jmpt.t 2f
++
++1: move.4 (DST_AN)4++, #0
++
++2: sub.4 #0, DST_AN, TMP_DN
++ jmpne.t 1b
++
++; save our parameter to devtree (after clearing .bss)
++ moveai DST_AN, #%hi(devtree)
++ lea.4 DST_AN, %lo(devtree)(DST_AN)
++ move.4 (DST_AN), PARAM_DN
++
++ moveai sp, #%hi(init_thread_union)
++ lea.4 sp, %lo(init_thread_union)(sp)
++ movei TMP_DN, #ASM_THREAD_SIZE
++ add.4 sp, sp, TMP_DN
++ move.4 -4(sp)++, #0 ; nesting level = 0
++ move.4 -4(sp)++, #1 ; KERNEL_THREAD
++
++;; ip3k-elf-gdb backend now sets scratchpad3 to 1 when either continue
++;; or single step commands are issued. scratchpad3 is set to 0 when the
++;; debugger detaches from the board.
++ move.4 TMP_DN, scratchpad3
++ lsl.4 TMP_DN, TMP_DN, #0x0
++ jmpeq.f _jump_to_start_kernel
++_ok_to_set_break_points_in_linux:
++;; THREAD_STALL
++ move.4 mt_dbg_active_clr,#-1
++;; stalling the threads isn't instantaneous.. need to flush the pipe.
++ pipe_flush 0
++ pipe_flush 0
++
++_jump_to_start_kernel:
++ moveai SRC_AN, #%hi(start_kernel)
++ lea.4 SRC_AN, %lo(start_kernel)(SRC_AN)
++ ret SRC_AN
+--- /dev/null
++++ b/arch/ubicom32/kernel/init_task.c
+@@ -0,0 +1,62 @@
++/*
++ * arch/ubicom32/kernel/init_task.c
++ * Ubicom32 architecture task initialization implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/mm.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/init.h>
++#include <linux/init_task.h>
++#include <linux/fs.h>
++#include <linux/mqueue.h>
++#include <linux/uaccess.h>
++#include <asm/pgtable.h>
++
++static struct fs_struct init_fs = INIT_FS;
++static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
++static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
++struct mm_struct init_mm = INIT_MM(init_mm);
++EXPORT_SYMBOL(init_mm);
++
++/*
++ * Initial task structure.
++ *
++ * All other task structs will be allocated on slabs in fork.c
++ */
++struct task_struct init_task = INIT_TASK(init_task);
++
++EXPORT_SYMBOL(init_task);
++
++/*
++ * Initial thread structure.
++ *
++ * We need to make sure that this is 8192-byte aligned due to the
++ * way process stacks are handled. This is done by having a special
++ * "init_task" linker map entry..
++ */
++union thread_union init_thread_union
++ __attribute__((__section__(".data.init_task"))) =
++ { INIT_THREAD_INFO(init_task) };
+--- /dev/null
++++ b/arch/ubicom32/kernel/irq.c
+@@ -0,0 +1,596 @@
++/*
++ * arch/ubicom32/kernel/irq.c
++ * Ubicom32 architecture IRQ support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/irq.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/kernel_stat.h>
++#include <linux/module.h>
++#include <linux/seq_file.h>
++#include <linux/proc_fs.h>
++#include <asm/system.h>
++#include <asm/traps.h>
++#include <asm/ldsr.h>
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++#include <asm/asm-offsets.h>
++#include <asm/thread.h>
++#include <asm/devtree.h>
++
++unsigned int irq_soft_avail;
++static struct irqaction ubicom32_reserve_action[NR_IRQS];
++
++#if !defined(CONFIG_DEBUG_IRQMEASURE)
++#define IRQ_DECLARE_MEASUREMENT
++#define IRQ_MEASUREMENT_START()
++#define IRQ_MEASUREMENT_END(irq)
++#else
++#define IRQ_DECLARE_MEASUREMENT \
++ int __diff; \
++ unsigned int __tstart;
++
++#define IRQ_MEASUREMENT_START() \
++ __tstart = UBICOM32_IO_TIMER->sysval;
++
++#define IRQ_MEASUREMENT_END(irq) \
++ __diff = (int)UBICOM32_IO_TIMER->sysval - (int)__tstart; \
++ irq_measurement_update((irq), __diff);
++
++/*
++ * We keep track of the time spent in both irq_enter()
++ * and irq_exit().
++ */
++#define IRQ_WEIGHT 32
++
++struct irq_measurement {
++ volatile unsigned int min;
++ volatile unsigned int avg;
++ volatile unsigned int max;
++};
++
++static DEFINE_SPINLOCK(irq_measurement_lock);
++
++/*
++ * Add 1 in for softirq (irq_exit());
++ */
++static struct irq_measurement irq_measurements[NR_IRQS + 1];
++
++/*
++ * irq_measurement_update()
++ * Update an entry in the measurement array for this irq.
++ */
++static void irq_measurement_update(int irq, int sample)
++{
++ struct irq_measurement *im = &irq_measurements[irq];
++ spin_lock(&irq_measurement_lock);
++ if ((im->min == 0) || (im->min > sample)) {
++ im->min = sample;
++ }
++ if (im->max < sample) {
++ im->max = sample;
++ }
++ im->avg = ((im->avg * (IRQ_WEIGHT - 1)) + sample) / IRQ_WEIGHT;
++ spin_unlock(&irq_measurement_lock);
++}
++#endif
++
++/*
++ * irq_kernel_stack_check()
++ * See if the kernel stack is within STACK_WARN of the end.
++ */
++static void irq_kernel_stack_check(int irq, struct pt_regs *regs)
++{
++#ifdef CONFIG_DEBUG_STACKOVERFLOW
++ unsigned long sp;
++
++ /*
++ * Make sure that we are not close to the top of the stack and thus
++ * can not really service this interrupt.
++ */
++ asm volatile (
++ "and.4 %0, SP, %1 \n\t"
++ : "=d" (sp)
++ : "d" (THREAD_SIZE - 1)
++ : "cc"
++ );
++
++ if (sp < (sizeof(struct thread_info) + STACK_WARN)) {
++ printk(KERN_WARNING
++ "cpu[%d]: possible overflow detected sp remain: %p, "
++ "irq: %d, regs: %p\n",
++ thread_get_self(), (void *)sp, irq, regs);
++ dump_stack();
++ }
++
++ if (sp < (sizeof(struct thread_info) + 16)) {
++ THREAD_STALL;
++ }
++#endif
++}
++
++/*
++ * irq_get_lsb()
++ * Get the LSB set in value
++ */
++static int irq_get_lsb(unsigned int value)
++{
++ static unsigned char irq_bits[8] = {
++ 3, 0, 1, 0, 2, 0, 1, 0
++ };
++ u32_t nextbit = 0;
++
++ value = (value >> nextbit) | (value << ((sizeof(value) * 8) - nextbit));
++
++ /*
++ * It's unlikely that we find that we execute the body of this while
++ * loop. 50% of the time we won't take this at all and then of the
++ * cases where we do about 50% of those we only execute once.
++ */
++ if (!(value & 0xffff)) {
++ nextbit += 0x10;
++ value >>= 16;
++ }
++
++ if (!(value & 0xff)) {
++ nextbit += 0x08;
++ value >>= 8;
++ }
++
++ if (!(value & 0xf)) {
++ nextbit += 0x04;
++ value >>= 4;
++ }
++
++ nextbit += irq_bits[value & 0x7];
++ if (nextbit > 63) {
++ panic("nextbit out of range: %d\n", nextbit);
++ }
++ return nextbit;
++}
++
++/*
++ * ubicom32_reserve_handler()
++ * Bogus handler associated with pre-reserved IRQ(s).
++ */
++static irqreturn_t ubicom32_reserve_handler(int irq, void *dev_id)
++{
++ BUG();
++ return IRQ_HANDLED;
++}
++
++/*
++ * __irq_disable_vector()
++ * Disable the interrupt by clearing the appropriate bit in the
++ * LDSR Mask Register.
++ */
++static void __irq_disable_vector(unsigned int irq)
++{
++ ldsr_disable_vector(irq);
++}
++
++/*
++ * __irq_ack_vector()
++ * Acknowledge the specific interrupt by clearing the associate bit in
++ * hardware
++ */
++static void __irq_ack_vector(unsigned int irq)
++{
++ if (irq < 32) {
++ asm volatile ("move.4 INT_CLR0, %0" : : "d" (1 << irq));
++ } else {
++ asm volatile ("move.4 INT_CLR1, %0" : : "d" (1 << (irq - 32)));
++ }
++}
++
++/*
++ * __irq_enable_vector()
++ * Clean and then enable the interrupt by setting the appropriate bit in
++ * the LDSR Mask Register.
++ */
++static void __irq_enable_vector(unsigned int irq)
++{
++ /*
++ * Acknowledge, really clear the vector.
++ */
++ __irq_ack_vector(irq);
++ ldsr_enable_vector(irq);
++}
++
++/*
++ * __irq_mask_vector()
++ */
++static void __irq_mask_vector(unsigned int irq)
++{
++ ldsr_mask_vector(irq);
++}
++
++/*
++ * __irq_unmask_vector()
++ */
++static void __irq_unmask_vector(unsigned int irq)
++{
++ ldsr_unmask_vector(irq);
++}
++
++/*
++ * __irq_end_vector()
++ * Called once an interrupt is completed (reset the LDSR mask).
++ */
++static void __irq_end_vector(unsigned int irq)
++{
++ ldsr_unmask_vector(irq);
++}
++
++#if defined(CONFIG_SMP)
++/*
++ * __irq_set_affinity()
++ * Set the cpu affinity for this interrupt.
++ */
++static void __irq_set_affinity(unsigned int irq, cpumask_t dest)
++{
++ smp_set_affinity(irq, dest);
++ irq_desc[irq].affinity = dest;
++}
++#endif
++
++/*
++ * On-Chip Generic Interrupt function handling.
++ */
++static struct irq_chip ubicom32_irq_chip = {
++ .name = "Ubicom32",
++ .startup = NULL,
++ .shutdown = NULL,
++ .enable = __irq_enable_vector,
++ .disable = __irq_disable_vector,
++ .ack = __irq_ack_vector,
++ .mask = __irq_mask_vector,
++ .unmask = __irq_unmask_vector,
++ .end = __irq_end_vector,
++#if defined(CONFIG_SMP)
++ .set_affinity = __irq_set_affinity,
++#endif
++};
++
++/*
++ * do_IRQ()
++ * Primary interface for handling IRQ() requests.
++ */
++asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
++{
++ struct pt_regs *oldregs;
++ struct thread_info *ti;
++ unsigned long sp;
++
++ IRQ_DECLARE_MEASUREMENT;
++
++ oldregs = set_irq_regs(regs);
++
++ /*
++ * Before we call the handler and potentially enable
++ * interrupts, track the nesting level.
++ */
++ asm volatile (
++ "and.4 %0, SP, %1 \n\t"
++ : "=d" (sp)
++ : "d" (~(THREAD_SIZE - 1))
++ : "cc"
++ );
++ ti = (struct thread_info *)sp;
++ ti->interrupt_nesting++;
++
++ /*
++ * Check for possible stack overflow on the kernel stack.
++ */
++ irq_kernel_stack_check(irq, regs);
++
++ /*
++ * Execute the IRQ handler and any pending SoftIRQ requests.
++ */
++ BUG_ON(!irqs_disabled());
++ irq_enter();
++
++ BUG_ON(!irqs_disabled());
++ IRQ_MEASUREMENT_START();
++ __do_IRQ(irq);
++ IRQ_MEASUREMENT_END(irq);
++ BUG_ON(!irqs_disabled());
++
++ IRQ_MEASUREMENT_START();
++ irq_exit();
++ IRQ_MEASUREMENT_END(NR_IRQS);
++ BUG_ON(!irqs_disabled());
++
++ set_irq_regs(oldregs);
++ ti->interrupt_nesting--;
++}
++
++/*
++ * irq_soft_alloc()
++ * Allocate a soft IRQ.
++ */
++int irq_soft_alloc(unsigned int *soft)
++{
++ if (irq_soft_avail == 0) {
++ printk(KERN_NOTICE "no soft irqs to allocate\n");
++ return -EFAULT;
++ }
++
++ *soft = irq_get_lsb(irq_soft_avail);
++ irq_soft_avail &= ~(1 << *soft);
++ return 0;
++}
++
++/*
++ * ack_bad_irq()
++ * Called to handle an bad irq request.
++ */
++void ack_bad_irq(unsigned int irq)
++{
++ printk(KERN_ERR "IRQ: unexpected irq=%d\n", irq);
++ __irq_end_vector(irq);
++}
++
++/*
++ * show_interrupts()
++ * Return a string that displays the state of each of the interrupts.
++ */
++int show_interrupts(struct seq_file *p, void *v)
++{
++ struct irqaction *ap;
++ int irq = *((loff_t *) v);
++ int j;
++
++ if (irq >= NR_IRQS) {
++ return 0;
++ }
++
++ if (irq == 0) {
++ seq_puts(p, " ");
++ for_each_online_cpu(j) {
++ seq_printf(p, "CPU%d ", j);
++ }
++ seq_putc(p, '\n');
++ }
++
++ ap = irq_desc[irq].action;
++ if (ap) {
++ seq_printf(p, "%3d: ", irq);
++ for_each_online_cpu(j) {
++ seq_printf(p, "%10u ", kstat_irqs_cpu(irq, j));
++ }
++ seq_printf(p, "%14s ", irq_desc[irq].chip->name);
++ seq_printf(p, "%s", ap->name);
++ for (ap = ap->next; ap; ap = ap->next) {
++ seq_printf(p, ", %s", ap->name);
++ }
++ seq_putc(p, '\n');
++ }
++ return 0;
++}
++
++#if defined(CONFIG_DEBUG_IRQMEASURE)
++static unsigned int irq_cycles_to_micro(unsigned int cycles, unsigned int frequency)
++{
++ unsigned int micro = (cycles / (frequency / 1000000));
++ return micro;
++}
++
++/*
++ * irq_measurement_show()
++ * Print out the min, avg, max values for each IRQ
++ *
++ * By request, the max value is reset after each dump.
++ */
++static int irq_measurement_show(struct seq_file *p, void *v)
++{
++ struct irqaction *ap;
++ unsigned int freq = processor_frequency();
++ int irq = *((loff_t *) v);
++
++
++ if (irq == 0) {
++ seq_puts(p, "\tmin\tavg\tmax\t(micro-seconds)\n");
++ }
++
++ if (irq > NR_IRQS) {
++ return 0;
++ }
++
++ if (irq == NR_IRQS) {
++ unsigned int min, avg, max;
++ spin_lock(&irq_measurement_lock);
++ min = irq_cycles_to_micro(irq_measurements[irq].min, freq);
++ avg = irq_cycles_to_micro(irq_measurements[irq].avg, freq);
++ max = irq_cycles_to_micro(irq_measurements[irq].max, freq);
++ irq_measurements[irq].max = 0;
++ spin_unlock(&irq_measurement_lock);
++ seq_printf(p, " \t%u\t%u\t%u\tsoftirq\n", min, avg, max);
++ return 0;
++ }
++
++ ap = irq_desc[irq].action;
++ if (ap) {
++ unsigned int min, avg, max;
++ spin_lock(&irq_measurement_lock);
++ min = irq_cycles_to_micro(irq_measurements[irq].min, freq);
++ avg = irq_cycles_to_micro(irq_measurements[irq].avg, freq);
++ max = irq_cycles_to_micro(irq_measurements[irq].max, freq);
++ irq_measurements[irq].max = 0;
++ spin_unlock(&irq_measurement_lock);
++ seq_printf(p, "%2u:\t%u\t%u\t%u\t%s\n", irq, min, avg, max, ap->name);
++ }
++ return 0;
++}
++
++static void *irq_measurement_start(struct seq_file *f, loff_t *pos)
++{
++ return (*pos <= NR_IRQS) ? pos : NULL;
++}
++
++static void *irq_measurement_next(struct seq_file *f, void *v, loff_t *pos)
++{
++ (*pos)++;
++ if (*pos > NR_IRQS)
++ return NULL;
++ return pos;
++}
++
++static void irq_measurement_stop(struct seq_file *f, void *v)
++{
++ /* Nothing to do */
++}
++
++static const struct seq_operations irq_measurement_seq_ops = {
++ .start = irq_measurement_start,
++ .next = irq_measurement_next,
++ .stop = irq_measurement_stop,
++ .show = irq_measurement_show,
++};
++
++static int irq_measurement_open(struct inode *inode, struct file *filp)
++{
++ return seq_open(filp, &irq_measurement_seq_ops);
++}
++
++static const struct file_operations irq_measurement_fops = {
++ .open = irq_measurement_open,
++ .read = seq_read,
++ .llseek = seq_lseek,
++ .release = seq_release,
++};
++
++static int __init irq_measurement_init(void)
++{
++ proc_create("irq_measurements", 0, NULL, &irq_measurement_fops);
++ return 0;
++}
++module_init(irq_measurement_init);
++#endif
++
++/*
++ * init_IRQ(void)
++ * Initialize the on-chip IRQ subsystem.
++ */
++void __init init_IRQ(void)
++{
++ int irq;
++ struct devtree_node *p = NULL;
++ struct devtree_node *iter = NULL;
++ unsigned int mask = 0;
++ unsigned int reserved = 0;
++
++ /*
++ * Pull out the list of software interrupts that are avialable to
++ * Linux and provide an allocation function for them. The first
++ * 24 interrupts of INT0 are software interrupts.
++ */
++ irq_soft_avail = 0;
++ if (processor_interrupts(&irq_soft_avail, NULL) < 0) {
++ printk(KERN_WARNING "No Soft IRQ(s) available\n");
++ }
++ irq_soft_avail &= ((1 << 24) - 1);
++
++ /*
++ * Initialize all of the on-chip interrupt handling
++ * to use a common set of interrupt functions.
++ */
++ for (irq = 0; irq < NR_IRQS; irq++) {
++ irq_desc[irq].status = IRQ_DISABLED;
++ irq_desc[irq].action = NULL;
++ irq_desc[irq].depth = 1;
++ set_irq_chip(irq, &ubicom32_irq_chip);
++ }
++
++ /*
++ * The sendirq of a devnode is not registered within Linux but instead
++ * is used by the software I/O thread. These interrupts are reserved.
++ * The recvirq is used by Linux and registered by a device driver, these
++ * are not reserved.
++ *
++ * recvirq(s) that are in the software interrupt range are not supposed
++ * to be marked as reserved. We track this while we scan the device
++ * nodes.
++ */
++ p = devtree_find_next(&iter);
++ while (p) {
++ unsigned char sendirq, recvirq;
++ devtree_irq(p, &sendirq, &recvirq);
++
++ /*
++ * If the sendirq is valid, mark that irq as taken by the
++ * devtree node.
++ */
++ if (sendirq < NR_IRQS) {
++ ubicom32_reserve_action[sendirq].handler =
++ ubicom32_reserve_handler;
++ ubicom32_reserve_action[sendirq].name = p->name;
++ irq_desc[sendirq].action =
++ &ubicom32_reserve_action[sendirq];
++ mask |= (1 << sendirq);
++ }
++
++ /*
++ * Track the relevant recieve IRQ(s)
++ */
++ if (recvirq < 24) {
++ mask |= (1 << recvirq);
++ }
++
++ /*
++ * Move to the next node.
++ */
++ p = devtree_find_next(&iter);
++ }
++
++ /*
++ * Remove these bits from the irq_soft_avail list and then use the
++ * result as the list of pre-reserved IRQ(s).
++ */
++ reserved = ~irq_soft_avail & ~mask;
++ for (irq = 0; irq < 24; irq++) {
++ if ((reserved & (1 << irq))) {
++ ubicom32_reserve_action[irq].handler =
++ ubicom32_reserve_handler;
++ ubicom32_reserve_action[irq].name = "reserved";
++ irq_desc[irq].action = &ubicom32_reserve_action[irq];
++ }
++ }
++
++ /*
++ * Initialize the LDSR which is the Ubicom32 programmable
++ * interrupt controller.
++ */
++ ldsr_init();
++
++ /*
++ * The Ubicom trap code needs a 2nd init after IRQ(s) are setup.
++ */
++ trap_init_interrupt();
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/ldsr.c
+@@ -0,0 +1,1176 @@
++/*
++ * arch/ubicom32/kernel/ldsr.c
++ * Ubicom32 architecture Linux Device Services Driver Interface
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ *
++ * NOTES:
++ *
++ * The LDSR is a programmable interrupt controller that is written in software.
++ * It emulates the behavior of an pic by fielding the interrupts, choosing a
++ * victim thread to take the interrupt and forcing that thread to take a context
++ * switch to the appropriate interrupt handler.
++ *
++ * Because traps are treated as just a special class of interrupts, the LDSR
++ * also handles the processing of traps.
++ *
++ * Because we compile Linux both UP and SMP, we need the LDSR to use
++ * architectural locking that is not "compiled out" when compiling UP. For now,
++ * we use the single atomic bit lock.
++ */
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/sched.h>
++#include <linux/interrupt.h>
++#include <linux/irq.h>
++#include <linux/profile.h>
++#include <linux/clocksource.h>
++#include <linux/types.h>
++#include <linux/module.h>
++#include <linux/cpumask.h>
++#include <linux/bug.h>
++#include <linux/delay.h>
++#include <asm/ip5000.h>
++#include <asm/atomic.h>
++#include <asm/machdep.h>
++#include <asm/asm-offsets.h>
++#include <asm/traps.h>
++#include <asm/thread.h>
++#include <asm/range-protect.h>
++
++/*
++ * One can not print from the LDSR so the best we can do is
++ * check a condition and stall all of the threads.
++ */
++
++// #define DEBUG_LDSR 1
++#if defined(DEBUG_LDSR)
++#define DEBUG_ASSERT(cond) \
++ if (!(cond)) { \
++ THREAD_STALL; \
++ }
++#else
++#define DEBUG_ASSERT(cond)
++#endif
++
++/*
++ * Make global so that we can use it in the RFI code in assembly.
++ */
++unsigned int ldsr_soft_irq_mask;
++EXPORT_SYMBOL(ldsr_soft_irq_mask);
++
++static unsigned int ldsr_suspend_mask;
++static unsigned int ldsr_soft_irq;
++static unsigned int ldsr_stack_space[1024];
++
++static struct ldsr_register_bank {
++ volatile unsigned int enabled0;
++ volatile unsigned int enabled1;
++ volatile unsigned int mask0;
++ volatile unsigned int mask1;
++ unsigned int total;
++ unsigned int retry;
++ unsigned int backout;
++} ldsr_interrupt;
++
++/*
++ * Which thread/cpu are we?
++ */
++static int ldsr_tid = -1;
++
++#if defined(CONFIG_IRQSTACKS)
++/*
++ * per-CPU IRQ stacks (thread information and stack)
++ *
++ * NOTE: Do not use DEFINE_PER_CPU() as it makes it harder
++ * to find the location of ctx from assembly language.
++ */
++union irq_ctx {
++ struct thread_info tinfo;
++ u32 stack[THREAD_SIZE/sizeof(u32)];
++};
++static union irq_ctx *percpu_irq_ctxs[NR_CPUS];
++
++/*
++ * Storage for the interrupt stack.
++ */
++#if !defined(CONFIG_IRQSTACKS_USEOCM)
++static char percpu_irq_stacks[(NR_CPUS * THREAD_SIZE) + (THREAD_SIZE - 1)];
++#else
++/*
++ * For OCM, the linker will ensure that space is allocated for the stack
++ * see (vmlinux.lds.S)
++ */
++static char percpu_irq_stacks[];
++#endif
++
++#endif
++
++/*
++ * Save trap IRQ because we need to un-suspend if it gets set.
++ */
++static unsigned int ldsr_trap_irq_mask;
++static unsigned int ldsr_trap_irq;
++
++/*
++ * ret_from_interrupt_to_kernel
++ * Just restore the context and do nothing else.
++ */
++asmlinkage void ret_from_interrupt_to_kernel(void)__attribute__((naked));
++
++/*
++ * ret_from_interrupt_to_user
++ * Call scheduler if needed. Just restore the context.
++ */
++asmlinkage void ret_from_interrupt_to_user(void)__attribute__((naked));
++
++#ifdef DEBUG_LDSR
++u32_t old_sp, old_pc, old_a0, old_a5, old_a3;
++struct pt_regs copy_regs, *copy_save_area;
++#endif
++
++int __user_mode(unsigned long sp)
++{
++
++ u32_t saved_stack_base = sp & ~(ASM_THREAD_SIZE - 1);
++#if defined(CONFIG_IRQSTACKS_USEOCM)
++ if ((union irq_ctx *)saved_stack_base == percpu_irq_ctxs[smp_processor_id()]) {
++ /*
++ * On the interrupt stack.
++ */
++ return 0;
++ }
++#endif
++
++ if (!(u32_t)current) {
++ return 0;
++ }
++ return saved_stack_base != ((u32_t)current->stack);
++}
++
++/*
++ * ldsr_lock_release()
++ * Release the LDSR lock.
++ */
++static void ldsr_lock_release(void)
++{
++ UBICOM32_UNLOCK(LDSR_LOCK_BIT);
++}
++
++/*
++ * ldsr_lock_acquire()
++ * Acquire the LDSR lock, spin if not available.
++ */
++static void ldsr_lock_acquire(void)
++{
++ UBICOM32_LOCK(LDSR_LOCK_BIT);
++}
++
++/*
++ * ldsr_thread_irq_disable()
++ * Disable interrupts for the specified thread.
++ */
++static void ldsr_thread_irq_disable(unsigned int tid)
++{
++ unsigned int mask = (1 << tid);
++
++ asm volatile (
++ " or.4 scratchpad1, scratchpad1, %0 \n\t"
++ :
++ : "d"(mask)
++ : "cc"
++ );
++}
++
++/*
++ * ldsr_thread_get_interrupts()
++ * Get the interrupt state for all threads.
++ */
++static unsigned long ldsr_thread_get_interrupts(void)
++{
++ unsigned long ret = 0;
++ asm volatile (
++ " move.4 %0, scratchpad1 \n\t"
++ : "=r" (ret)
++ :
++ );
++ return ret;
++}
++
++/*
++ * ldsr_emulate_and_run()
++ * Emulate the instruction and then set the thread to run.
++ */
++static void ldsr_emulate_and_run(unsigned int tid)
++{
++ unsigned int thread_mask = (1 << tid);
++ u32_t write_csr = (tid << 15) | (1 << 14);
++
++ /*
++ * Emulate the unaligned access.
++ */
++ unaligned_emulate(tid);
++
++ /*
++ * Get the thread back in a running state.
++ */
++ asm volatile (
++ " setcsr %0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " move.4 trap_cause, #0 \n\t" /* Clear the trap cause
++ * register */
++ " setcsr #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " move.4 mt_dbg_active_set, %1 \n\t" /* Activate thread even if
++ * in dbg/fault state */
++ " move.4 mt_active_set, %1 \n\t" /* Restart target
++ * thread. */
++ :
++ : "r" (write_csr), "d" (thread_mask)
++ : "cc"
++ );
++ thread_enable_mask(thread_mask);
++}
++
++/*
++ * ldsr_preemptive_context_save()
++ * save thread context from another hardware thread. The other thread must
++ * be stalled.
++ */
++static inline void ldsr_preemptive_context_save(u32_t thread,
++ struct pt_regs *regs)
++{
++ /*
++ * Save the current state of the specified thread
++ */
++ asm volatile (
++ " move.4 a3, %0 \n\t"
++
++ /* set src1 from the target thread */
++ " move.4 csr, %1 \n\t"
++ " setcsr_flush 0 \n\t"
++ " setcsr_flush 0 \n\t"
++
++ /* copy state from the other thread */
++ " move.4 "D(PT_D0)"(a3), d0 \n\t"
++ " move.4 "D(PT_D1)"(a3), d1 \n\t"
++ " move.4 "D(PT_D2)"(a3), d2 \n\t"
++ " move.4 "D(PT_D3)"(a3), d3 \n\t"
++ " move.4 "D(PT_D4)"(a3), d4 \n\t"
++ " move.4 "D(PT_D5)"(a3), d5 \n\t"
++ " move.4 "D(PT_D6)"(a3), d6 \n\t"
++ " move.4 "D(PT_D7)"(a3), d7 \n\t"
++ " move.4 "D(PT_D8)"(a3), d8 \n\t"
++ " move.4 "D(PT_D9)"(a3), d9 \n\t"
++ " move.4 "D(PT_D10)"(a3), d10 \n\t"
++ " move.4 "D(PT_D11)"(a3), d11 \n\t"
++ " move.4 "D(PT_D12)"(a3), d12 \n\t"
++ " move.4 "D(PT_D13)"(a3), d13 \n\t"
++ " move.4 "D(PT_D14)"(a3), d14 \n\t"
++ " move.4 "D(PT_D15)"(a3), d15 \n\t"
++ " move.4 "D(PT_A0)"(a3), a0 \n\t"
++ " move.4 "D(PT_A1)"(a3), a1 \n\t"
++ " move.4 "D(PT_A2)"(a3), a2 \n\t"
++ " move.4 "D(PT_A3)"(a3), a3 \n\t"
++ " move.4 "D(PT_A4)"(a3), a4 \n\t"
++ " move.4 "D(PT_A5)"(a3), a5 \n\t"
++ " move.4 "D(PT_A6)"(a3), a6 \n\t"
++ " move.4 "D(PT_SP)"(a3), a7 \n\t"
++ " move.4 "D(PT_ACC0HI)"(a3), acc0_hi \n\t"
++ " move.4 "D(PT_ACC0LO)"(a3), acc0_lo \n\t"
++ " move.4 "D(PT_MAC_RC16)"(a3), mac_rc16 \n\t"
++ " move.4 "D(PT_ACC1HI)"(a3), acc1_hi \n\t"
++ " move.4 "D(PT_ACC1LO)"(a3), acc1_lo \n\t"
++ " move.4 "D(PT_SOURCE3)"(a3), source3 \n\t"
++ " move.4 "D(PT_INST_CNT)"(a3), inst_cnt \n\t"
++ " move.4 "D(PT_CSR)"(a3), csr \n\t"
++ " move.4 "D(PT_DUMMY_UNUSED)"(a3), #0 \n\t"
++ " move.4 "D(PT_INT_MASK0)"(a3), int_mask0 \n\t"
++ " move.4 "D(PT_INT_MASK1)"(a3), int_mask1 \n\t"
++ " move.4 "D(PT_TRAP_CAUSE)"(a3), trap_cause \n\t"
++ " move.4 "D(PT_PC)"(a3), pc \n\t"
++ " move.4 "D(PT_PREVIOUS_PC)"(a3), previous_pc \n\t"
++ /* disable csr thread select */
++ " movei csr, #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ :
++ : "r" (regs->dn), "d" ((thread << 9) | (1 << 8))
++ : "a3"
++ );
++}
++
++/*
++ * ldsr_rotate_threads()
++ * Simple round robin algorithm for choosing the next cpu
++ */
++static int ldsr_rotate_threads(unsigned long cpus)
++{
++ static unsigned char ldsr_bits[8] = {
++ 3, 0, 1, 0, 2, 0, 1, 0
++ };
++
++ static int nextbit;
++ int thisbit;
++
++ /*
++ * Move the interrupts down so that we consider interrupts from where
++ * we left off, then take the interrupts we would lose and move them
++ * to the top half of the interrupts value.
++ */
++ cpus = (cpus >> nextbit) | (cpus << ((sizeof(cpus) * 8) - nextbit));
++
++ /*
++ * 50% of the time we won't take this at all and then of the cases where
++ * we do about 50% of those we only execute once.
++ */
++ if (!(cpus & 0xffff)) {
++ nextbit += 16;
++ cpus >>= 16;
++ }
++
++ if (!(cpus & 0xff)) {
++ nextbit += 8;
++ cpus >>= 8;
++ }
++
++ if (!(cpus & 0xf)) {
++ nextbit += 4;
++ cpus >>= 4;
++ }
++
++ nextbit += ldsr_bits[cpus & 0x7];
++ thisbit = (nextbit & ((sizeof(cpus) * 8) - 1));
++ nextbit = (thisbit + 1) & ((sizeof(cpus) * 8) - 1);
++ DEBUG_ASSERT(thisbit < THREAD_ARCHITECTURAL_MAX);
++ return thisbit;
++}
++
++/*
++ * ldsr_rotate_interrupts()
++ * Get rotating next set bit value.
++ */
++static int ldsr_rotate_interrupts(unsigned long long interrupts)
++{
++ static unsigned char ldsr_bits[8] = {
++ 3, 0, 1, 0, 2, 0, 1, 0
++ };
++
++ static int nextbit;
++ int thisbit;
++
++ /*
++ * Move the interrupts down so that we consider interrupts from where
++ * we left off, then take the interrupts we would lose and move them
++ * to the top half of the interrupts value.
++ */
++ interrupts = (interrupts >> nextbit) |
++ (interrupts << ((sizeof(interrupts) * 8) - nextbit));
++
++ /*
++ * 50% of the time we won't take this at all and then of the cases where
++ * we do about 50% of those we only execute once.
++ */
++ if (!(interrupts & 0xffffffff)) {
++ nextbit += 32;
++ interrupts >>= 32;
++ }
++
++ if (!(interrupts & 0xffff)) {
++ nextbit += 16;
++ interrupts >>= 16;
++ }
++
++ if (!(interrupts & 0xff)) {
++ nextbit += 8;
++ interrupts >>= 8;
++ }
++
++ if (!(interrupts & 0xf)) {
++ nextbit += 4;
++ interrupts >>= 4;
++ }
++
++ nextbit += ldsr_bits[interrupts & 0x7];
++ thisbit = (nextbit & ((sizeof(interrupts) * 8) - 1));
++ nextbit = (thisbit + 1) & ((sizeof(interrupts) * 8) - 1);
++
++ DEBUG_ASSERT(thisbit < (sizeof(interrupts) * 8));
++ return thisbit;
++}
++
++/*
++ * ldsr_backout_or_irq()
++ *
++ * One way or the other this interrupt is not being
++ * processed, make sure that it is reset. We are
++ * not going to call irq_end_vector() so unmask the
++ * interrupt.
++ */
++static void ldsr_backout_of_irq(int vector, unsigned long tid_mask)
++{
++#if defined(CONFIG_SMP)
++ if (unlikely(vector == smp_ipi_irq)) {
++ smp_reset_ipi(tid_mask);
++ }
++#endif
++ ldsr_unmask_vector(vector);
++ ldsr_interrupt.backout++;
++}
++
++#if defined(CONFIG_IRQSTACKS)
++/*
++ * ldsr_choose_savearea_and_returnvec()
++ * Test our current state (user, kernel, interrupt) and set things up.
++ *
++ * This version of the function uses 3 stacks and nests interrupts
++ * on the interrupt stack.
++ */
++static struct pt_regs *ldsr_choose_savearea_and_returnvec(thread_t tid, u32_t linux_sp, u32_t *pvec)
++{
++ struct pt_regs *save_area;
++ u32_t masked_linux_sp = linux_sp & ~(THREAD_SIZE - 1);
++ struct thread_info * ti= (struct thread_info *)sw_ksp[tid];
++
++#if defined(CONFIG_SMP)
++ union irq_ctx *icp = percpu_irq_ctxs[tid];
++#else
++ union irq_ctx *icp = percpu_irq_ctxs[0];
++#endif
++
++ if (masked_linux_sp == (u32_t)icp) {
++ /*
++ * Fault/Interrupt occurred while on the interrupt stack.
++ */
++ save_area = (struct pt_regs *)((char *)linux_sp - sizeof(struct pt_regs) - 8);
++ *pvec = (u32_t)(&ret_from_interrupt_to_kernel);
++ } else {
++ /*
++ * Fault/Interrupt occurred while on user/kernel stack. This is a new
++ * first use of the interrupt stack.
++ */
++ save_area = (struct pt_regs *) ((char *)icp + sizeof(icp->stack) - sizeof(struct pt_regs) - 8);
++ if (masked_linux_sp == (u32_t)ti) {
++ *pvec = (u32_t)(&ret_from_interrupt_to_kernel);
++ } else {
++ *pvec = (u32_t)(&ret_from_interrupt_to_user);
++ }
++
++ /*
++ * Because the softirq code will execute on the "interrupt" stack, we
++ * need to maintain the knowledge of what "task" was executing on the
++ * cpu. This is done by copying the thread_info->task from the cpu
++ * we are about to context switch into the interrupt contexts thread_info
++ * structure.
++ */
++ icp->tinfo.task = ti->task;
++ icp->tinfo.preempt_count =
++ (icp->tinfo.preempt_count & ~SOFTIRQ_MASK) |
++ (ti->preempt_count & SOFTIRQ_MASK);
++ icp->tinfo.interrupt_nesting = 0;
++ }
++ save_area->nesting_level = icp->tinfo.interrupt_nesting;
++ return save_area;
++}
++
++#else
++/*
++ * ldsr_choose_savearea_and_returnvec()
++ * Test our current state (user, kernel, interrupt) and set things up.
++ *
++ * The version of the function uses just the user & kernel stack and
++ * nests interrupts on the existing kernel stack.
++ */
++static struct pt_regs *ldsr_choose_savearea_and_returnvec(thread_t tid, u32_t linux_sp, u32_t *pvec)
++{
++ struct pt_regs *save_area;
++ u32_t masked_linux_sp = linux_sp & ~(THREAD_SIZE - 1);
++ struct thread_info *ti = (struct thread_info *)sw_ksp[tid];
++
++ if (masked_linux_sp == (u32_t)ti) {
++ /*
++ * Fault/Interrupt occurred while on the kernel stack.
++ */
++ save_area = (struct pt_regs *)((char *)linux_sp - sizeof(struct pt_regs) - 8);
++ *pvec = (u32_t) (&ret_from_interrupt_to_kernel);
++ } else {
++ /*
++ * Fault/Interrupt occurred while on user stack.
++ */
++ ti->interrupt_nesting = 0;
++ save_area = (struct pt_regs *)((u32_t)ti + THREAD_SIZE - sizeof(struct pt_regs) - 8);
++ *pvec = (u32_t) (&ret_from_interrupt_to_user);
++ }
++ save_area->nesting_level = ti->interrupt_nesting;
++ return save_area;
++}
++#endif
++
++/*
++ * ldsr_ctxsw_thread()
++ * Context switch a mainline thread to execute do_IRQ() for the specified
++ * vector.
++ */
++static void ldsr_ctxsw_thread(int vector, thread_t tid)
++{
++ u32_t linux_sp;
++ u32_t return_vector;
++ struct pt_regs *save_area, *regs;
++ u32_t thread_mask = (1 << tid);
++ u32_t read_csr = ((tid << 9) | (1 << 8));
++ u32_t write_csr = (tid << 15) | (1 << 14);
++ u32_t interrupt_vector = (u32_t)(&do_IRQ);
++
++ unsigned int frame_type = UBICOM32_FRAME_TYPE_INTERRUPT;
++
++
++ DEBUG_ASSERT(!thread_is_enabled(tid));
++
++ /*
++ * Acquire the necessary global and per thread locks for tid.
++ * As a side effect, we ensure that the thread has not trapped
++ * and return true if it has.
++ */
++ if (unlikely(thread_is_trapped(tid))) {
++ /*
++ * Read the trap cause, the sp and clear the MT_TRAP bits.
++ */
++ unsigned int cause;
++ asm volatile (
++ " setcsr %3 \n\t"
++ " setcsr_flush 0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " move.4 %0, TRAP_CAUSE \n\t"
++ " move.4 %1, SP \n\t"
++ " setcsr #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " move.4 MT_BREAK_CLR, %2\n\t"
++ " move.4 MT_TRAP_CLR, %2 \n\t"
++ : "=&r" (cause), "=&r" (linux_sp)
++ : "r" (thread_mask), "m" (read_csr)
++ );
++
++ ldsr_backout_of_irq(vector, (1 << tid));
++
++#if !defined(CONFIG_UNALIGNED_ACCESS_DISABLED)
++ /*
++ * See if the unaligned trap handler can deal with this.
++ * If so, emulate the instruction and then just restart
++ * the thread.
++ */
++ if (unaligned_only(cause)) {
++#if defined(CONFIG_UNALIGNED_ACCESS_USERSPACE_ONLY)
++ /*
++ * Check if this is a kernel stack if so we will not
++ * handle the trap
++ */
++ u32_t masked_linux_sp = linux_sp & ~(THREAD_SIZE - 1);
++ if ((masked_linux_sp != (u32_t)sw_ksp[tid]) &&
++ unaligned_only(cause)) {
++ ldsr_emulate_and_run(tid);
++ return;
++ }
++#else
++ ldsr_emulate_and_run(tid);
++ return;
++#endif
++
++ }
++#endif
++
++ interrupt_vector = (u32_t)(&trap_handler);
++ frame_type = UBICOM32_FRAME_TYPE_TRAP;
++ } else {
++ /*
++ * Read the target thread's SP
++ */
++ asm volatile (
++ " setcsr %1 \n\t"
++ " setcsr_flush 0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " move.4 %0, SP \n\t"
++ " setcsr #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ : "=m" (linux_sp)
++ : "m" (read_csr)
++ );
++ }
++
++ /*
++ * We are delivering an interrupt, count it.
++ */
++ ldsr_interrupt.total++;
++
++ /*
++ * At this point, we will definitely force this thread to
++ * a new context, show its interrupts as disabled.
++ */
++ ldsr_thread_irq_disable(tid);
++
++ /*
++ * Test our current state (user, kernel, interrupt). Save the
++ * appropriate data and setup for the return.
++ */
++ save_area = ldsr_choose_savearea_and_returnvec(tid, linux_sp, &return_vector);
++
++ /*
++ * The pt_regs (save_area) contains the type of thread that we are dealing
++ * with (KERNEL/NORMAL) and is copied into each pt_regs area. We get this
++ * from the current tasks kernel pt_regs area that always exists at the
++ * top of the kernel stack.
++ */
++ regs = (struct pt_regs *)((u32_t)sw_ksp[tid] + THREAD_SIZE - sizeof(struct pt_regs) - 8);
++ save_area->thread_type = regs->thread_type;
++
++ /*
++ * Preserve the context of the Linux thread.
++ */
++ ldsr_preemptive_context_save(tid, save_area);
++
++ /*
++ * Load the fram_type into the save_area.
++ */
++ save_area->frame_type = frame_type;
++
++#ifdef CONFIG_STOP_ON_TRAP
++ /*
++ * Before we get backtrace and showing stacks working well, it sometimes
++ * helps to enter the debugger when a trap occurs before we change the
++ * thread to handle the fault. This optional code causes all threads to
++ * stop on every trap frame. One assumes that GDB connected via the
++ * mailbox interface will be used to recover from this state.
++ */
++ if (frame_type == UBICOM32_FRAME_TYPE_TRAP) {
++ THREAD_STALL;
++ }
++#endif
++
++#ifdef DEBUG_LDSR
++ copy_regs = *save_area;
++ copy_save_area = save_area;
++
++ old_a0 = save_area->an[0];
++ old_a3 = save_area->an[3];
++ old_sp = save_area->an[7];
++ old_a5 = save_area->an[5];
++ old_pc = save_area->pc;
++#endif
++
++ /*
++ * Now we have to switch the kernel thread to run do_IRQ function.
++ * Set pc to do_IRQ
++ * Set d0 to vector
++ * Set d1 to save_area.
++ * Set a5 to the proper return vector.
++ */
++ asm volatile (
++ " setcsr %0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " move.4 d0, %5 \n\t" /* d0 = 0 vector # */
++ " move.4 d1, %1 \n\t" /* d1 = save_area */
++ " move.4 sp, %1 \n\t" /* sp = save_area */
++ " move.4 a5, %2 \n\t" /* a5 = return_vector */
++ " move.4 pc, %3 \n\t" /* pc = do_IRQ routine. */
++ " move.4 trap_cause, #0 \n\t" /* Clear the trap cause
++ * register */
++ " setcsr #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " enable_kernel_ranges %4 \n\t"
++ " move.4 mt_dbg_active_set, %4 \n\t" /* Activate thread even if
++ * in dbg/fault state */
++ " move.4 mt_active_set, %4 \n\t" /* Restart target
++ * thread. */
++ :
++ : "r" (write_csr), "r" (save_area),
++ "r" (return_vector), "r" (interrupt_vector),
++ "d" (thread_mask), "r" (vector)
++ : "cc"
++ );
++ thread_enable_mask(thread_mask);
++}
++
++/*
++ * ldsr_deliver_interrupt()
++ * Deliver the interrupt to one of the threads or all of the threads.
++ */
++static void ldsr_deliver_interrupt(int vector,
++ unsigned long deliver_to,
++ int all)
++{
++ unsigned long disabled_threads;
++ unsigned long possible_threads;
++ unsigned long trapped_threads;
++ unsigned long global_locks;
++
++ /*
++ * Disable all of the threads that we might want to send
++ * this interrupt to.
++ */
++retry:
++ DEBUG_ASSERT(deliver_to);
++ thread_disable_mask(deliver_to);
++
++ /*
++ * If any threads are in the trap state, we have to service the
++ * trap for those threads first.
++ */
++ asm volatile (
++ "move.4 %0, MT_TRAP \n\t"
++ : "=r" (trapped_threads)
++ :
++ );
++
++ trapped_threads &= deliver_to;
++ if (unlikely(trapped_threads)) {
++ /*
++ * all traps will be handled, so clear the trap bit before restarting any threads
++ */
++ ubicom32_clear_interrupt(ldsr_trap_irq);
++
++ /*
++ * Let the remaining untrapped threads, continue.
++ */
++ deliver_to &= ~trapped_threads;
++ if (deliver_to) {
++ thread_enable_mask(deliver_to);
++ }
++
++ /*
++ * For the trapped threads force them to handle
++ * a trap.
++ */
++ while (trapped_threads) {
++ unsigned long which = ffz(~trapped_threads);
++ trapped_threads &= ~(1 << which);
++ ldsr_ctxsw_thread(vector, which);
++ }
++ return;
++ }
++
++ /*
++ * Can we deliver an interrupt to any of the threads?
++ */
++ disabled_threads = ldsr_thread_get_interrupts();
++ possible_threads = deliver_to & ~disabled_threads;
++ if (unlikely(!possible_threads)) {
++#if defined(CONFIG_SMP)
++ /*
++ * In the SMP case, we can not wait because 1 cpu might be
++ * sending an IPI to another cpu which is currently blocked.
++ * The only way to ensure IPI delivery is to backout and
++ * keep trying. For SMP, we don't sleep until the interrupts
++ * are delivered.
++ */
++ thread_enable_mask(deliver_to);
++ ldsr_backout_of_irq(vector, deliver_to);
++ return;
++#else
++ /*
++ * In the UP case, we have nothing to do so we should wait.
++ *
++ * Since the INT_MASK0 and INT_MASK1 are "re-loaded" before we
++ * suspend in the outer loop, we do not need to save them here.
++ *
++ * We test that we were awakened for our specific interrupts
++ * because the ldsr mask/unmask operations will force the ldsr
++ * awake even if the interrupt on the mainline thread is not
++ * completed.
++ */
++ unsigned int scratch = 0;
++ thread_enable_mask(deliver_to);
++ asm volatile (
++ " move.4 INT_MASK0, %1 \n\t"
++ " move.4 INT_MASK1, #0 \n\t"
++
++ "1: suspend \n\t"
++ " move.4 %0, INT_STAT0 \n\t"
++ " and.4 %0, %0, %1 \n\t"
++ " jmpeq.f 1b \n\t"
++
++ " move.4 INT_CLR0, %2 \n\t"
++ : "+r" (scratch)
++ : "d" (ldsr_suspend_mask), "r" (ldsr_soft_irq_mask)
++ : "cc"
++ );
++
++ /*
++ * This delay is sized to coincide with the time it takes a
++ * thread to complete the exit (see return_from_interrupt).
++ */
++ ldsr_interrupt.retry++;
++ __delay(10);
++ goto retry;
++#endif
++ }
++
++ /*
++ * If any of the global locks are held, we can not deliver any
++ * interrupts, we spin delay(10) and then try again. If our
++ * spinning becomes a bottle neck, we will need to suspend but for
++ * now lets just spin.
++ */
++ asm volatile (
++ "move.4 %0, scratchpad1 \n\t"
++ : "=r" (global_locks)
++ :
++ );
++ if (unlikely(global_locks & 0xffff0000)) {
++ thread_enable_mask(deliver_to);
++
++ /*
++ * This delay is sized to coincide with the average time it
++ * takes a thread to release a global lock.
++ */
++ ldsr_interrupt.retry++;
++ __delay(10);
++ goto retry;
++ }
++
++ /*
++ * Deliver to one cpu.
++ */
++ if (!all) {
++ /*
++ * Find our victim and then enable everyone else.
++ */
++ unsigned long victim = ldsr_rotate_threads(possible_threads);
++ DEBUG_ASSERT((deliver_to & (1 << victim)));
++ DEBUG_ASSERT((possible_threads & (1 << victim)));
++
++ deliver_to &= ~(1 << victim);
++ if (deliver_to) {
++ thread_enable_mask(deliver_to);
++ }
++ ldsr_ctxsw_thread(vector, victim);
++ return;
++ }
++
++ /*
++ * If we can't deliver to some threads, wake them
++ * back up and reset things to deliver to them.
++ */
++ deliver_to &= ~possible_threads;
++ if (unlikely(deliver_to)) {
++ thread_enable_mask(deliver_to);
++ ldsr_backout_of_irq(vector, deliver_to);
++ }
++
++ /*
++ * Deliver to all possible threads(s).
++ */
++ while (possible_threads) {
++ unsigned long victim = ffz(~possible_threads);
++ possible_threads &= ~(1 << victim);
++ ldsr_ctxsw_thread(vector, victim);
++ }
++}
++
++/*
++ * ldsr_thread()
++ * This thread acts as the interrupt controller for Linux.
++ */
++static void ldsr_thread(void *arg)
++{
++ int stat0;
++ int stat1;
++ int interrupt0;
++ int interrupt1;
++ long long interrupts;
++ unsigned long cpus;
++
++#if !defined(CONFIG_SMP)
++ /*
++ * In a non-smp configuration, we can not use the cpu(s) arrays because
++ * there is not a 1-1 correspondence between cpus(s) and our threads.
++ * Thus we must get a local idea of the mainline threads and use the
++ * one and only 1 set as the victim. We do this once before the ldsr
++ * loop.
++ *
++ * In the SMP case, we will use the cpu(s) map to determine which cpu(s)
++ * are valid to send interrupts to.
++ */
++ int victim = 0;
++ unsigned int mainline = thread_get_mainline();
++ if (mainline == 0) {
++ panic("no mainline Linux threads to interrupt");
++ return;
++ }
++ victim = ffz(~mainline);
++ cpus = (1 << victim);
++#endif
++
++ while (1) {
++ /*
++ * If one changes this code not to reload the INT_MASK(s), you
++ * need to know that code in the lock waiting above does not
++ * reset the MASK registers back; so that code will need to be
++ * changed.
++ */
++ ldsr_lock_acquire();
++ asm volatile (
++ " move.4 INT_MASK0, %0 \n\t"
++ " move.4 INT_MASK1, %1 \n\t"
++ :
++ : "U4" (ldsr_interrupt.mask0), "U4" (ldsr_interrupt.mask1)
++ );
++ ldsr_lock_release();
++ thread_suspend();
++
++ /*
++ * Read the interrupt status registers
++ */
++ asm volatile (
++ "move.4 %0, INT_STAT0 \n\t"
++ "move.4 %1, INT_STAT1 \n\t"
++ : "=r" (stat0), "=r" (stat1)
++ :
++ );
++
++ /*
++ * We only care about interrupts that we have been told to care
++ * about. The interrupt must be enabled, unmasked, and have
++ * occurred in the hardware.
++ */
++ ldsr_lock_acquire();
++ interrupt0 = ldsr_interrupt.enabled0 &
++ ldsr_interrupt.mask0 & stat0;
++ interrupt1 = ldsr_interrupt.enabled1 &
++ ldsr_interrupt.mask1 & stat1;
++ ldsr_lock_release();
++
++ /*
++ * For each interrupt in the "snapshot" we will mask the
++ * interrupt handle the interrupt (typically calling do_IRQ()).
++ *
++ * The interrupt is unmasked by desc->chip->end() function in
++ * the per chip generic interrupt handling code
++ * (arch/ubicom32/kernel/irq.c).8
++ */
++ interrupts = ((unsigned long long)interrupt1 << 32) |
++ interrupt0;
++ while (interrupts) {
++ int all = 0;
++ int vector = ldsr_rotate_interrupts(interrupts);
++ interrupts &= ~((unsigned long long)1 << vector);
++
++ /*
++ * Now mask off this vector so that the LDSR ignores
++ * it until it is acknowledged.
++ */
++ ldsr_mask_vector(vector);
++#if !defined(CONFIG_SMP)
++ ldsr_deliver_interrupt(vector, cpus, all);
++#else
++ cpus = smp_get_affinity(vector, &all);
++ if (cpus) {
++ ldsr_deliver_interrupt(vector, cpus, all);
++ }
++#endif
++ }
++ }
++
++ /* NOTREACHED */
++}
++
++/*
++ * ldsr_mask_vector()
++ * Temporarily mask the interrupt vector, turn off the bit in the mask
++ * register.
++ */
++void ldsr_mask_vector(unsigned int vector)
++{
++ unsigned int mask;
++ if (vector < 32) {
++ mask = ~(1 << vector);
++ ldsr_lock_acquire();
++ ldsr_interrupt.mask0 &= mask;
++ ldsr_lock_release();
++ thread_resume(ldsr_tid);
++ return;
++ }
++
++ mask = ~(1 << (vector - 32));
++ ldsr_lock_acquire();
++ ldsr_interrupt.mask1 &= mask;
++ ldsr_lock_release();
++ thread_resume(ldsr_tid);
++}
++
++/*
++ * ldsr_unmask_vector()
++ * Unmask the interrupt vector so that it can be used, turn on the bit in
++ * the mask register.
++ *
++ * Because it is legal for the interrupt path to disable an interrupt,
++ * the unmasking code must ensure that disabled interrupts are not
++ * unmasked.
++ */
++void ldsr_unmask_vector(unsigned int vector)
++{
++ unsigned int mask;
++ if (vector < 32) {
++ mask = (1 << vector);
++ ldsr_lock_acquire();
++ ldsr_interrupt.mask0 |= (mask & ldsr_interrupt.enabled0);
++ ldsr_lock_release();
++ thread_resume(ldsr_tid);
++ return;
++ }
++
++ mask = (1 << (vector - 32));
++ ldsr_lock_acquire();
++ ldsr_interrupt.mask1 |= (mask & ldsr_interrupt.enabled1);
++ ldsr_lock_release();
++ thread_resume(ldsr_tid);
++}
++
++/*
++ * ldsr_enable_vector()
++ * The LDSR implements an interrupt controller and has a local (to the
++ * LDSR) copy of its interrupt mask.
++ */
++void ldsr_enable_vector(unsigned int vector)
++{
++ unsigned int mask;
++ if (vector < 32) {
++ mask = (1 << vector);
++ ldsr_lock_acquire();
++ ldsr_interrupt.enabled0 |= mask;
++ ldsr_interrupt.mask0 |= mask;
++ ldsr_lock_release();
++ thread_resume(ldsr_tid);
++ return;
++ }
++
++ mask = (1 << (vector - 32));
++ ldsr_lock_acquire();
++ ldsr_interrupt.enabled1 |= mask;
++ ldsr_interrupt.mask1 |= mask;
++ ldsr_lock_release();
++ thread_resume(ldsr_tid);
++}
++
++/*
++ * ldsr_disable_vector()
++ * The LDSR implements an interrupt controller and has a local (to the
++ * LDSR) copy of its interrupt mask.
++ */
++void ldsr_disable_vector(unsigned int vector)
++{
++ unsigned int mask;
++
++ if (vector < 32) {
++ mask = ~(1 << vector);
++ ldsr_lock_acquire();
++ ldsr_interrupt.enabled0 &= mask;
++ ldsr_interrupt.mask0 &= mask;
++ ldsr_lock_release();
++ thread_resume(ldsr_tid);
++ return;
++ }
++
++ mask = ~(1 << (vector - 32));
++ ldsr_lock_acquire();
++ ldsr_interrupt.enabled1 &= mask;
++ ldsr_interrupt.mask1 &= mask;
++ ldsr_lock_release();
++ thread_resume(ldsr_tid);
++}
++
++/*
++ * ldsr_get_threadid()
++ * Return the threadid of the LDSR thread.
++ */
++thread_t ldsr_get_threadid(void)
++{
++ return ldsr_tid;
++}
++
++/*
++ * ldsr_set_trap_irq()
++ * Save away the trap Soft IRQ
++ *
++ * See the per thread lock suspend code above for an explination.
++ */
++void ldsr_set_trap_irq(unsigned int irq)
++{
++ ldsr_trap_irq = irq;
++ ldsr_trap_irq_mask = (1 << irq);
++ ldsr_suspend_mask |= ldsr_trap_irq_mask;
++}
++
++/*
++ * ldsr_init()
++ * Initialize the LDSR (Interrupt Controller)
++ */
++void ldsr_init(void)
++{
++#if defined(CONFIG_IRQSTACKS)
++ int i;
++ union irq_ctx *icp;
++#endif
++
++ void *stack_high = (void *)ldsr_stack_space;
++ stack_high += sizeof(ldsr_stack_space);
++ stack_high -= 8;
++
++
++ /*
++ * Obtain a soft IRQ to use
++ */
++ if (irq_soft_alloc(&ldsr_soft_irq) < 0) {
++ panic("no software IRQ is available\n");
++ return;
++ }
++ ldsr_soft_irq_mask |= (1 << ldsr_soft_irq);
++ ldsr_suspend_mask |= ldsr_soft_irq_mask;
++
++ /*
++ * Now allocate and start the LDSR thread.
++ */
++ ldsr_tid = thread_alloc();
++ if (ldsr_tid < 0) {
++ panic("no thread available to run LDSR");
++ return;
++ }
++
++#if defined(CONFIG_IRQSTACKS)
++ /*
++ * Initialize the per-cpu irq thread_info structure that
++ * is at the top of each per-cpu irq stack.
++ */
++ icp = (union irq_ctx *)
++ (((unsigned long)percpu_irq_stacks + (THREAD_SIZE - 1)) & ~(THREAD_SIZE - 1));
++ for (i = 0; i < NR_CPUS; i++) {
++ struct thread_info *ti = &(icp->tinfo);
++ ti->task = NULL;
++ ti->exec_domain = NULL;
++ ti->cpu = i;
++ ti->preempt_count = 0;
++ ti->interrupt_nesting = 0;
++ percpu_irq_ctxs[i] = icp++;
++ }
++#endif
++ thread_start(ldsr_tid, ldsr_thread, NULL,
++ stack_high, THREAD_TYPE_NORMAL);
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/Makefile
+@@ -0,0 +1,64 @@
++#
++# arch/ubicom32/kernel/Makefile
++# Main Makefile for the Ubicom32 arch directory.
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++
++extra-y := head.o vmlinux.lds
++
++obj-y += \
++ devtree.o \
++ dma.o \
++ flat.o \
++ init_task.o \
++ irq.o \
++ ldsr.o \
++ os_node.o \
++ process.o \
++ processor.o \
++ ptrace.o \
++ setup.o \
++ signal.o \
++ stacktrace.o \
++ sys_ubicom32.o \
++ syscalltable.o \
++ thread.o \
++ time.o \
++ traps.o \
++ ubicom32_context_switch.o \
++ ubicom32_ksyms.o \
++ ubicom32_syscall.o \
++ unaligned_trap.o
++
++obj-$(CONFIG_MODULES) += module.o
++obj-$(CONFIG_COMEMPCI) += comempci.o
++obj-$(CONFIG_SMP) += smp.o topology.o
++obj-$(CONFIG_ACCESS_OK_CHECKS_ENABLED) += uaccess.o
++obj-$(CONFIG_GENERIC_CLOCKEVENTS) += timer_device.o
++obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) += timer_broadcast.o
++
++ifndef CONFIG_GENERIC_CLOCKEVENTS
++obj-y += timer_tick.o
++endif
+--- /dev/null
++++ b/arch/ubicom32/kernel/module.c
+@@ -0,0 +1,463 @@
++/*
++ * arch/ubicom32/kernel/module.c
++ * Ubicom32 architecture loadable module support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/moduleloader.h>
++#include <linux/bug.h>
++#include <linux/elf.h>
++#include <linux/vmalloc.h>
++#include <linux/fs.h>
++#include <linux/string.h>
++#include <linux/kernel.h>
++#include <asm/ocm-alloc.h>
++
++#if 0
++#define DEBUGP printk
++#else
++#define DEBUGP(fmt...)
++#endif
++
++static void _module_free_ocm(struct module *mod)
++{
++ printk(KERN_INFO "module arch cleanup %s: OCM instruction memory free "
++ " of %d @%p\n", mod->name, mod->arch.ocm_inst_size,
++ mod->arch.ocm_inst);
++
++ if (mod->arch.ocm_inst) {
++ ocm_inst_free(mod->arch.ocm_inst);
++ mod->arch.ocm_inst = 0;
++ mod->arch.ocm_inst_size = 0;
++ }
++}
++
++void *module_alloc(unsigned long size)
++{
++ if (size == 0)
++ return NULL;
++ return vmalloc(size);
++}
++
++
++/* Free memory returned from module_alloc */
++void module_free(struct module *mod, void *module_region)
++{
++ vfree(module_region);
++ /* FIXME: If module_region == mod->init_region, trim exception
++ table entries. */
++
++ /*
++ * This is expected to be final module free, use this to prune the
++ * ocm
++ */
++ if (module_region && module_region == mod->module_core)
++ _module_free_ocm(mod);
++
++}
++
++/*
++ * module_frob_arch_sections()
++ * Called from kernel/module.c allowing arch specific handling of
++ * sections/headers.
++ */
++int module_frob_arch_sections(Elf_Ehdr *hdr,
++ Elf_Shdr *sechdrs,
++ char *secstrings,
++ struct module *mod)
++{
++ Elf_Shdr *s, *sechdrs_end;
++ void *ocm_inst = NULL;
++ int ocm_inst_size = 0;
++
++ /*
++ * Ubicom32 v3 and v4 are almost binary compatible but not completely.
++ * To be safe check that the module was compiled with the correct -march
++ * which is flags.
++ */
++#ifdef CONFIG_UBICOM32_V4
++ if ((hdr->e_flags & 0xFFFF) != EF_UBICOM32_V4) {
++ printk(KERN_WARNING "Module %s was not compiled for "
++ "ubicom32v4, elf_flags:%x,\n",
++ mod->name, hdr->e_flags);
++ return -ENOEXEC;
++ }
++#elif defined CONFIG_UBICOM32_V3
++ if ((hdr->e_flags & 0xFFFF) != EF_UBICOM32_V3) {
++ printk(KERN_WARNING "Module %s was not compiled for "
++ "ubicom32v3, elf_flags:%x\n",
++ mod->name, hdr->e_flags);
++ return -ENOEXEC;
++ }
++#else
++#error Unknown/Unsupported ubicom32 architecture.
++#endif
++
++ /*
++ * XXX: sechdrs are vmalloced in kernel/module.c
++ * and would be vfreed just after module is loaded,
++ * so we hack to keep the only information we needed
++ * in mod->arch to correctly free L1 I/D sram later.
++ * NOTE: this breaks the semantic of mod->arch structure.
++ */
++ sechdrs_end = sechdrs + hdr->e_shnum;
++ for (s = sechdrs; s < sechdrs_end; ++s) {
++ if (strncmp(".ocm_text", secstrings + s->sh_name, 9) == 0)
++ ocm_inst_size += s->sh_size;
++ }
++
++ if (!ocm_inst_size)
++ return 0;
++
++ ocm_inst = ocm_inst_alloc(ocm_inst_size, 0 /* internal */);
++ if (ocm_inst == NULL) {
++#ifdef CONFIG_OCM_MODULES_FALLBACK_TO_DDR
++ printk(KERN_WARNING
++ "module %s: OCM instruction memory allocation of %d"
++ "failed, fallback to DDR\n", mod->name, ocm_inst_size);
++ return 0;
++#else
++ printk(KERN_ERR
++ "module %s: OCM instruction memory allocation of %d"
++ "failed.\n", mod->name, ocm_inst_size);
++ return -ENOMEM;
++#endif
++ }
++
++ mod->arch.ocm_inst = ocm_inst;
++ mod->arch.ocm_inst_size = ocm_inst_size;
++
++ printk(KERN_INFO
++ "module %s: OCM instruction memory allocation of %d @%p\n",
++ mod->name, mod->arch.ocm_inst_size, mod->arch.ocm_inst);
++
++ for (s = sechdrs; s < sechdrs_end; ++s) {
++ if (strncmp(".ocm_text", secstrings + s->sh_name, 9) == 0) {
++ memcpy(ocm_inst, (void *)s->sh_addr, s->sh_size);
++ s->sh_flags &= ~SHF_ALLOC;
++ s->sh_addr = (unsigned long)ocm_inst;
++ ocm_inst += s->sh_size;
++ }
++ }
++
++ return 0;
++}
++
++int apply_relocate(Elf32_Shdr *sechdrs,
++ const char *strtab,
++ unsigned int symindex,
++ unsigned int relsec,
++ struct module *me)
++{
++ DEBUGP("Invalid Applying relocate section %u to %u\n", relsec,
++ sechdrs[relsec].sh_info);
++ return -EINVAL;
++}
++
++int apply_relocate_add(Elf32_Shdr *sechdrs,
++ const char *strtab,
++ unsigned int symindex,
++ unsigned int relsec,
++ struct module *me)
++{
++ unsigned int i;
++ Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
++ Elf32_Sym *sym;
++ uint32_t *location;
++ uint32_t insn;
++
++ DEBUGP("Applying relocate_add section %u to %u\n", relsec,
++ sechdrs[relsec].sh_info);
++ for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
++ uint32_t v;
++ const int elf32_rtype = ELF32_R_TYPE(rel[i].r_info);
++
++ /* This is where to make the change */
++ location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
++ + rel[i].r_offset;
++ /* This is the symbol it is referring to. Note that all
++ undefined symbols have been resolved. */
++ sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
++ + ELF32_R_SYM(rel[i].r_info);
++
++ v = rel[i].r_addend + sym->st_value;
++
++
++ switch (elf32_rtype) {
++ case R_UBICOM32_32:
++ {
++ /*
++ * Store the 32 bit relocation as is.
++ */
++ *location = v;
++ break;
++ }
++ case R_UBICOM32_HI24:
++ {
++ /*
++ * 24 bit relocation that is part of the MOVEAI
++ * instruction. The 24 bits come from bits 7 - 30 of the
++ * relocation. Theses bits eventually get split into 2
++ * fields in the instruction encoding.
++ *
++ * - Bits 7 - 27 of the relocation are encoded into bits
++ * 0 - 20 of the instruction.
++ *
++ * - Bits 28 - 30 of the relocation are encoded into
++ * bit 24 - 26 of the instruction.
++ */
++ uint32_t valid24 = (v >> 7) & 0xffffff;
++ insn = *location;
++
++ insn &= ~(0x1fffff | (0x7 << 24));
++ insn |= (valid24 & 0x1fffff);
++ insn |= ((valid24 & 0xe00000) << 3);
++ *location = insn;
++ }
++ break;
++ case R_UBICOM32_LO7_S:
++ case R_UBICOM32_LO7_2_S:
++ case R_UBICOM32_LO7_4_S:
++ {
++ /*
++ * Bits 0 - 6 of the relocation are encoded into the
++ * 7bit unsigned immediate fields of the SOURCE-1 field
++ * of the instruction. The immediate value is left
++ * shifted by (0, 1, 2) based on the operand size.
++ */
++ uint32_t valid7 = v & 0x7f;
++ insn = *location;
++
++ if (elf32_rtype == R_UBICOM32_LO7_2_S) {
++ valid7 >>= 1;
++ } else if (elf32_rtype == R_UBICOM32_LO7_4_S) {
++ valid7 >>= 2;
++ }
++
++ insn &= ~(0x1f | (0x3 << 8));
++ insn |= (valid7 & 0x1f);
++ insn |= ((valid7 & 0x60) << 3);
++ *location = insn;
++ }
++ break;
++ case R_UBICOM32_LO7_D:
++ case R_UBICOM32_LO7_2_D:
++ case R_UBICOM32_LO7_4_D:
++ {
++ /*
++ * Bits 0 - 6 of the relocation are encoded into the
++ * 7bit unsigned immediate fields of the DESTINATION
++ * field of the instruction. The immediate value is
++ * left shifted by (0, 1, 2) based on the operand size.
++ */
++ uint32_t valid7 = v & 0x7f;
++ insn = *location;
++
++ if (elf32_rtype == R_UBICOM32_LO7_2_D) {
++ valid7 >>= 1;
++ } else if (elf32_rtype == R_UBICOM32_LO7_4_D) {
++ valid7 >>= 2;
++ }
++
++ insn &= ~((0x1f | (0x3 << 8)) << 16);
++ insn |= ((valid7 & 0x1f) << 16);
++ insn |= ((valid7 & 0x60) << 19);
++ *location = insn;
++ }
++ break;
++ case R_UBICOM32_LO7_CALLI:
++ case R_UBICOM32_LO16_CALLI:
++ {
++ /*
++ * Extract the offset for a CALLI instruction. The
++ * offsets can be either 7 bits or 18 bits. Since all
++ * instructions in ubicom32 architecture are at work
++ * aligned addresses the truncated offset is right
++ * shifted by 2 before being encoded in the instruction.
++ */
++ uint32_t val;
++ if (elf32_rtype == R_UBICOM32_LO7_CALLI) {
++ val = v & 0x7f;
++ } else {
++ val = v & 0x3ffff;
++ }
++
++ val >>= 2;
++
++ insn = *location;
++
++ insn &= ~0x071f071f;
++ insn |= (val & 0x1f) << 0;
++ val >>= 5;
++ insn |= (val & 0x07) << 8;
++ val >>= 3;
++ insn |= (val & 0x1f) << 16;
++ val >>= 5;
++ insn |= (val & 0x07) << 24;
++ *location = insn;
++ }
++ break;
++ case R_UBICOM32_24_PCREL:
++ {
++ /*
++ * Extract 26 bit signed PC relative offset for CALL
++ * instructions. Since instruction addresses are word
++ * aligned the offset is right shited by 2 before
++ * encoding into instruction.
++ */
++ int32_t val = v - (int32_t)location;
++
++ /*
++ * Check that the top 7 bits are all equal to the sign
++ * bit (26), i.e all 0's or all 1's. If they are not then
++ * the absolute difference is greater than 25 bits.
++ */
++ if (((uint32_t)val & 0xFE000000) != 0xFE000000 &&
++ ((uint32_t)val & 0xFE000000) != 0x0) {
++ /*
++ * The relocation is beyond our addressable
++ * range with a 26 bit call.
++ */
++ printk(KERN_ERR "module %s: PC Relative "
++ "relocation out of range: "
++ "%u (%x->%x, %x)\n",
++ me->name, elf32_rtype,
++ v, (uint32_t) location, val);
++ return -ENOEXEC;
++ }
++
++ val = (val & 0x3ffffff) >> 2;
++ insn = *location;
++ insn = insn & 0xf8e00000;
++
++ insn |= (val >> 21) << 24;
++ insn |= (val & 0x1fffff);
++ *location = insn;
++ }
++ break;
++ case R_UBICOM32_LO16:
++ case R_UBICOM32_HI16:
++ {
++ /*
++ * 16 bit immediate value that is encoded into bit 0 -
++ * 15 of the instruction.
++ */
++ uint32_t val;
++
++ if (elf32_rtype == R_UBICOM32_LO16) {
++ val = v & 0xffff;
++ } else {
++ val = (v >> 16) & 0xffff;
++ }
++
++ insn = *location;
++ insn &= 0xffff0000;
++
++ insn |= val;
++ *location = insn;
++ }
++ break;
++ case R_UBICOM32_21_PCREL:
++ {
++ /*
++ * Extract 23 bit signed PC relative offset for JMP<cc>
++ * instructions. Since instruction addresses are word
++ * aligned the offset is right shited by 2 before
++ * encoding into instruction.
++ */
++ int32_t val = v - (int32_t)location;
++
++ val = (val & 0x7fffff) >> 2;
++ insn = *location;
++ insn = insn & 0xffe00000;
++
++ insn |= (val >> 21) << 24;
++ insn |= val;
++ *location = insn;
++ }
++ break;
++ default:
++ BUG();
++ printk(KERN_ERR "module %s: Unknown relocation: %u\n",
++ me->name, elf32_rtype);
++ return -ENOEXEC;
++ }
++ }
++ return 0;
++}
++
++int module_finalize(const Elf_Ehdr *hdr,
++ const Elf_Shdr *sechdrs,
++ struct module *mod)
++{
++ unsigned int i, strindex = 0, symindex = 0;
++ char *secstrings;
++ int err;
++
++ err = module_bug_finalize(hdr, sechdrs, mod);
++ if (err)
++ return err;
++
++ if (!mod->arch.ocm_inst) {
++ /*
++ * No OCM code, so nothing more to do.
++ */
++ return 0;
++ }
++
++ secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
++
++ for (i = 1; i < hdr->e_shnum; i++) {
++ /* Internal symbols and strings. */
++ if (sechdrs[i].sh_type == SHT_SYMTAB) {
++ symindex = i;
++ strindex = sechdrs[i].sh_link;
++ }
++ }
++
++ for (i = 1; i < hdr->e_shnum; i++) {
++ const char *strtab = (char *)sechdrs[strindex].sh_addr;
++ unsigned int info = sechdrs[i].sh_info;
++
++ /* Not a valid relocation section? */
++ if (info >= hdr->e_shnum)
++ continue;
++
++ if ((sechdrs[i].sh_type == SHT_RELA) &&
++ (strncmp(".rela.ocm_text",
++ secstrings + sechdrs[i].sh_name, 5 + 9) == 0)) {
++ err = apply_relocate_add((Elf_Shdr *) sechdrs, strtab,
++ symindex, i, mod);
++ if (err)
++ return err;
++ }
++ }
++
++ return 0;
++}
++
++void module_arch_cleanup(struct module *mod)
++{
++ module_bug_cleanup(mod);
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/os_node.c
+@@ -0,0 +1,80 @@
++/*
++ * arch/ubicom32/kernel/os_node.c
++ * <TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ */
++#include "linux/types.h"
++#include "linux/linkage.h"
++#include "linux/uts.h"
++#include "linux/utsrelease.h"
++#include "linux/version.h"
++#include <asm/ocm_size.h>
++#include <asm/devtree.h>
++#include <asm/ip5000.h>
++
++extern asmlinkage void *_start;
++
++/*
++ * This file provides static information to the boot code allowing it to decide
++ * if the os is compatible. Thus hopefully enabling the boot code to prevent
++ * accidentally booting a kernel that has no hope of running.
++ */
++struct os_node {
++ struct devtree_node node;
++ unsigned long version; /* Always 1 */
++ unsigned long entry_point;
++ const char os_name[32]; /* For diagnostic purposes only */
++ const char os_version_str[32];
++ unsigned long os_version_num;
++ unsigned long expected_ocm_code_start;/* OS Code */
++ unsigned long expected_ocm_data_end; /* OS Data */
++ unsigned long expected_ram_start;
++ unsigned long expected_ram_end;
++ unsigned long arch_version;
++};
++
++
++/*
++ * The os_node is only referenced by head.S and should never be modified at
++ * run-time.
++ */
++asmlinkage const struct os_node _os_node = {
++ .node = {
++ .next = NULL,
++ .name = { "OS" },
++ .magic = 0x10203040,
++ },
++ .version = 0x10001,
++ .entry_point = (unsigned long)&_start,
++#if APP_OCM_CODE_SIZE || APP_OCM_DATA_SIZE
++ .expected_ocm_code_start = OCMSTART + APP_OCM_CODE_SIZE,
++ .expected_ocm_data_end = OCMEND - APP_OCM_DATA_SIZE,
++#else
++ .expected_ocm_code_start = OCMEND,
++ .expected_ocm_data_end = OCMEND,
++#endif
++ .os_name = { UTS_SYSNAME },
++ .os_version_str = { UTS_RELEASE },
++ .os_version_num = LINUX_VERSION_CODE,
++ .expected_ram_start = CONFIG_KERNELBASE,
++ .expected_ram_end = CONFIG_RAMBASE + CONFIG_RAMSIZE,
++ .arch_version = UBICOM32_ARCH_VERSION
++};
+--- /dev/null
++++ b/arch/ubicom32/kernel/process.c
+@@ -0,0 +1,494 @@
++/*
++ * arch/ubicom32/kernel/process.c
++ * Ubicom32 architecture-dependent process handling.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1995 Hamish Macdonald
++ *
++ * 68060 fixes by Jesper Skov
++ *
++ * uClinux changes
++ * Copyright (C) 2000-2002, David McCullough <davidm@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++/*
++ * This file handles the architecture-dependent parts of process handling..
++ */
++
++#include <linux/module.h>
++#include <linux/errno.h>
++#include <linux/sched.h>
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/smp.h>
++#include <linux/smp_lock.h>
++#include <linux/stddef.h>
++#include <linux/unistd.h>
++#include <linux/ptrace.h>
++#include <linux/slab.h>
++#include <linux/user.h>
++#include <linux/a.out.h>
++#include <linux/interrupt.h>
++#include <linux/reboot.h>
++#include <linux/fs.h>
++#include <linux/pm.h>
++
++#include <linux/uaccess.h>
++#include <asm/system.h>
++#include <asm/traps.h>
++#include <asm/machdep.h>
++#include <asm/setup.h>
++#include <asm/pgtable.h>
++#include <asm/ip5000.h>
++#include <asm/range-protect.h>
++
++asmlinkage void ret_from_fork(void);
++
++void (*pm_power_off)(void) = machine_power_off;
++EXPORT_SYMBOL(pm_power_off);
++
++/* machine-dependent / hardware-specific power functions */
++void (*mach_reset)(void);
++void (*mach_halt)(void);
++void (*mach_power_off)(void);
++
++/*
++ * cpu_idle()
++ * The idle thread.
++ *
++ * Our idle loop suspends and is woken up by a timer interrupt.
++ */
++void cpu_idle(void)
++{
++ while (1) {
++ local_irq_disable();
++ while (!need_resched()) {
++ local_irq_enable();
++ thread_suspend();
++ local_irq_disable();
++ }
++ local_irq_enable();
++ preempt_enable_no_resched();
++ schedule();
++ preempt_disable();
++ }
++}
++
++/*
++ * dump_fpu()
++ *
++ * Fill in the fpu structure for a core dump. (just a stub as we don't have
++ * an fpu)
++ */
++int dump_fpu(struct pt_regs *regs, elf_fpregset_t * fpregs)
++{
++ return 1;
++}
++
++/*
++ * machine_restart()
++ * Resets the system.
++ */
++void machine_restart(char *__unused)
++{
++ /*
++ * Disable all threads except myself. We can do this
++ * directly without needing to call smp_send_stop
++ * because we have a unique architecture where
++ * one thread can disable one or more other threads.
++ */
++ thread_disable_others();
++
++ /*
++ * Call the hardware-specific machine reset function.
++ */
++ if (mach_reset) {
++ mach_reset();
++ }
++
++ printk(KERN_EMERG "System Restarting\n");
++
++ /*
++ * Set watchdog to trigger (after 1ms delay) (12 Mhz is the fixed OSC)
++ */
++ UBICOM32_IO_TIMER->tkey = TIMER_TKEYVAL;
++ UBICOM32_IO_TIMER->wdcom = UBICOM32_IO_TIMER->mptval +
++ (12000000 / 1000);
++ UBICOM32_IO_TIMER->wdcfg = 0;
++ UBICOM32_IO_TIMER->tkey = 0;
++
++ /*
++ * Wait for watchdog
++ */
++ asm volatile (
++ " move.4 MT_EN, #0 \n\t"
++ " pipe_flush 0 \n\t"
++ );
++
++ local_irq_disable();
++ for (;;) {
++ thread_suspend();
++ }
++}
++
++/*
++ * machine_halt()
++ * Halt the machine.
++ *
++ * Similar to machine_power_off, but don't shut off power. Add code
++ * here to freeze the system for e.g. post-mortem debug purpose when
++ * possible. This halt has nothing to do with the idle halt.
++ */
++void machine_halt(void)
++{
++ /*
++ * Disable all threads except myself. We can do this
++ * directly without needing to call smp_send_stop
++ * because we have a unique architecture where
++ * one thread can disable one or more other threads.
++ */
++ thread_disable_others();
++
++ /*
++ * Call the hardware-specific machine halt function.
++ */
++ if (mach_halt) {
++ mach_halt();
++ }
++
++ printk(KERN_EMERG "System Halted, OK to turn off power\n");
++ local_irq_disable();
++ for (;;) {
++ thread_suspend();
++ }
++}
++
++/*
++ * machine_power_off()
++ * Turn the power off, if a power off handler is defined, otherwise, spin
++ * endlessly.
++ */
++void machine_power_off(void)
++{
++ /*
++ * Disable all threads except myself. We can do this
++ * directly without needing to call smp_send_stop
++ * because we have a unique architecture where
++ * one thread can disable one or more other threads.
++ */
++ thread_disable_others();
++
++ /*
++ * Call the hardware-specific machine power off function.
++ */
++ if (mach_power_off) {
++ mach_power_off();
++ }
++
++ printk(KERN_EMERG "System Halted, OK to turn off power\n");
++ local_irq_disable();
++ for (;;) {
++ thread_suspend();
++ }
++}
++
++/*
++ * show_regs()
++ * Print out all of the registers.
++ */
++void show_regs(struct pt_regs *regs)
++{
++ unsigned int i;
++
++ printk(KERN_NOTICE "regs: %p, tid: %d\n",
++ (void *)regs,
++ thread_get_self());
++
++ printk(KERN_NOTICE "pc: %08x, previous_pc: %08x\n\n",
++ (unsigned int)regs->pc,
++ (unsigned int)regs->previous_pc);
++
++ printk(KERN_NOTICE "Data registers\n");
++ for (i = 0; i < 16; i++) {
++ printk("D%02d: %08x, ", i, (unsigned int)regs->dn[i]);
++ if ((i % 4) == 3) {
++ printk("\n");
++ }
++ }
++ printk("\n");
++
++ printk(KERN_NOTICE "Address registers\n");
++ for (i = 0; i < 8; i++) {
++ printk("A%02d: %08x, ", i, (unsigned int)regs->an[i]);
++ if ((i % 4) == 3) {
++ printk("\n");
++ }
++ }
++ printk("\n");
++
++ printk(KERN_NOTICE "acc0: %08x-%08x, acc1: %08x-%08x\n",
++ (unsigned int)regs->acc0[1],
++ (unsigned int)regs->acc0[0],
++ (unsigned int)regs->acc1[1],
++ (unsigned int)regs->acc1[0]);
++
++ printk(KERN_NOTICE "mac_rc16: %08x, source3: %08x\n",
++ (unsigned int)regs->mac_rc16,
++ (unsigned int)regs->source3);
++
++ printk(KERN_NOTICE "inst_cnt: %08x, csr: %08x\n",
++ (unsigned int)regs->inst_cnt,
++ (unsigned int)regs->csr);
++
++ printk(KERN_NOTICE "int_mask0: %08x, int_mask1: %08x\n",
++ (unsigned int)regs->int_mask0,
++ (unsigned int)regs->int_mask1);
++
++ printk(KERN_NOTICE "frame_type: %d, nesting_level: %d, thread_type %d\n\n",
++ (int)regs->frame_type,
++ (int)regs->nesting_level,
++ (int)regs->thread_type);
++}
++
++/*
++ * kernel_thread_helper()
++ * On execution d0 will be 0, d1 will be the argument to be passed to the
++ * kernel function. d2 contains the kernel function that needs to get
++ * called. d3 will contain address to do_exit which need to get moved
++ * into a5. On return from fork the child thread d0 will be 0. We call
++ * this dummy function which in turn loads the argument
++ */
++asmlinkage void kernel_thread_helper(void);
++
++/*
++ * kernel_thread()
++ * Create a kernel thread
++ */
++int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
++{
++ struct pt_regs regs;
++
++ memset(®s, 0, sizeof(regs));
++
++ regs.dn[1] = (unsigned long)arg;
++ regs.dn[2] = (unsigned long)fn;
++ regs.dn[3] = (unsigned long)do_exit;
++ regs.an[5] = (unsigned long)kernel_thread_helper;
++ regs.pc = (unsigned long)kernel_thread_helper;
++ regs.nesting_level = 0;
++ regs.thread_type = KERNEL_THREAD;
++
++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED,
++ 0, ®s, 0, NULL, NULL);
++}
++EXPORT_SYMBOL(kernel_thread);
++
++/*
++ * flush_thread()
++ * XXX todo
++ */
++void flush_thread(void)
++{
++ /* XXX todo */
++}
++
++/*
++ * sys_fork()
++ * Not implemented on no-mmu.
++ */
++asmlinkage int sys_fork(struct pt_regs *regs)
++{
++ /* fork almost works, enough to trick you into looking elsewhere :-( */
++ return -EINVAL;
++}
++
++/*
++ * sys_vfork()
++ * By the time we get here, the non-volatile registers have also been saved
++ * on the stack. We do some ugly pointer stuff here.. (see also copy_thread
++ * which does context copy).
++ */
++asmlinkage int sys_vfork(struct pt_regs *regs)
++{
++ unsigned long old_sp = regs->an[7];
++ unsigned long old_a5 = regs->an[5];
++ unsigned long old_return_address;
++ long do_fork_return;
++
++ /*
++ * Read the old retrun address from the stack.
++ */
++ if (copy_from_user(&old_return_address,
++ (void *)old_sp, sizeof(unsigned long))) {
++ force_sig(SIGSEGV, current);
++ return 0;
++ }
++
++ /*
++ * Pop the vfork call frame by setting a5 and pc to the old_return
++ * address and incrementing the stack pointer by 4.
++ */
++ regs->an[5] = old_return_address;
++ regs->pc = old_return_address;
++ regs->an[7] += 4;
++
++ do_fork_return = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
++ regs->an[7], regs, 0, NULL, NULL);
++
++ /*
++ * Now we have to test if the return code is an error. If it is an error
++ * then restore the frame and we will execute error processing in user
++ * space. Other wise the child and the parent will return to the correct
++ * places.
++ */
++ if ((unsigned long)(do_fork_return) >= (unsigned long)(-125)) {
++ /*
++ * Error case. We need to restore the frame.
++ */
++ regs->an[5] = old_a5;
++ regs->pc = old_a5;
++ regs->an[7] = old_sp;
++ }
++
++ return do_fork_return;
++}
++
++/*
++ * sys_clone()
++ * creates a child thread.
++ */
++asmlinkage int sys_clone(unsigned long clone_flags,
++ unsigned long newsp,
++ struct pt_regs *regs)
++{
++ if (!newsp)
++ newsp = regs->an[7];
++ return do_fork(clone_flags, newsp, regs, 0,
++ NULL, NULL);
++}
++
++/*
++ * copy_thread()
++ * low level thread copy, only used by do_fork in kernel/fork.c
++ */
++int copy_thread(int nr, unsigned long clone_flags,
++ unsigned long usp, unsigned long topstk,
++ struct task_struct *p, struct pt_regs *regs)
++{
++ struct pt_regs *childregs;
++
++ childregs = (struct pt_regs *)
++ (task_stack_page(p) + THREAD_SIZE - 8) - 1;
++
++ *childregs = *regs;
++
++ /*
++ * Set return value for child to be 0.
++ */
++ childregs->dn[0] = 0;
++
++ if (usp)
++ childregs->an[7] = usp;
++ else
++ childregs->an[7] = (unsigned long)task_stack_page(p) +
++ THREAD_SIZE - 8;
++
++ /*
++ * Set up the switch_to frame to return to "ret_from_fork"
++ */
++ p->thread.a5 = (unsigned long)ret_from_fork;
++ p->thread.sp = (unsigned long)childregs;
++
++ return 0;
++}
++
++/*
++ * sys_execve()
++ * executes a new program.
++ */
++asmlinkage int sys_execve(char *name, char **argv,
++ char **envp, struct pt_regs *regs)
++{
++ int error;
++ char *filename;
++
++ lock_kernel();
++ filename = getname(name);
++ error = PTR_ERR(filename);
++ if (IS_ERR(filename))
++ goto out;
++ error = do_execve(filename, argv, envp, regs);
++ putname(filename);
++ asm (" .global sys_execve_complete\n"
++ " sys_execve_complete:");
++out:
++ unlock_kernel();
++ return error;
++}
++
++/*
++ * Return saved PC of a blocked thread.
++ */
++unsigned long thread_saved_pc(struct task_struct *tsk)
++{
++ return tsk->thread.a5;
++}
++
++
++unsigned long get_wchan(struct task_struct *p)
++{
++ unsigned long pc;
++
++ /*
++ * If we don't have a process, or it is not the current
++ * one or not RUNNING, it makes no sense to ask for a
++ * wchan.
++ */
++ if (!p || p == current || p->state == TASK_RUNNING)
++ return 0;
++
++ /*
++ * TODO: If the process is in the middle of schedule, we
++ * are supposed to do something different but for now we
++ * will return the same thing in both situations.
++ */
++ pc = thread_saved_pc(p);
++ if (in_sched_functions(pc))
++ return pc;
++ return pc;
++}
++
++/*
++ * __switch_to is the function that implements the contex save and
++ * switch within the kernel. Since this is a function call very few
++ * registers have to be saved to pull this off. d0 holds prev and we
++ * want to preserve it. prev_switch is a pointer to task->thread
++ * structure. This is where we will save the register state. next_switch
++ * is pointer to the next task's thread structure that holds the
++ * registers.
++ */
++asmlinkage void *__switch_to(struct task_struct *prev,
++ struct thread_struct *prev_switch,
++ struct thread_struct *next_switch)
++ __attribute__((naked));
+--- /dev/null
++++ b/arch/ubicom32/kernel/processor.c
+@@ -0,0 +1,258 @@
++/*
++ * arch/ubicom32/kernel/processor.c
++ * Ubicom32 architecture processor info implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/sched.h>
++#include <linux/interrupt.h>
++#include <linux/irq.h>
++#include <linux/profile.h>
++#include <linux/clocksource.h>
++#include <linux/types.h>
++#include <linux/seq_file.h>
++#include <linux/delay.h>
++#include <linux/cpu.h>
++#include <asm/devtree.h>
++#include <asm/processor.h>
++#include <asm/cpu.h>
++
++struct procnode {
++ struct devtree_node dn;
++ unsigned int threads;
++ unsigned int timers;
++ unsigned int frequency;
++ unsigned int interrupt0;
++ unsigned int interrupt1;
++ void *socm;
++ void *eocm;
++ void *sdram;
++ void *edram;
++};
++
++struct procnode *pn;
++
++/*
++ * show_processorinfo()
++ * Print the actual processor information.
++ */
++static void show_processorinfo(struct seq_file *m)
++{
++ char *cpu, *mmu, *fpu;
++ unsigned int clockfreq;
++ unsigned int chipid;
++
++ cpu = CPU;
++ mmu = "none";
++ fpu = "none";
++
++ asm volatile (
++ "move.4 %0, CHIP_ID \n\t"
++ : "=r" (chipid)
++ );
++
++ /*
++ * General Processor Information.
++ */
++ seq_printf(m, "Vendor:\t\t%s\n", "Ubicom");
++ seq_printf(m, "CPU:\t\t%s\n", cpu);
++ seq_printf(m, "MMU:\t\t%s\n", mmu);
++ seq_printf(m, "FPU:\t\t%s\n", fpu);
++ seq_printf(m, "Arch:\t\t%hx\n", chipid >> 16);
++ seq_printf(m, "Rev:\t\t%hx\n", (chipid & 0xffff));
++
++ /*
++ * Now compute the clock frequency in Mhz.
++ */
++ clockfreq = processor_frequency();
++ seq_printf(m, "Clock Freq:\t%u.%1u MHz\n",
++ clockfreq / 1000000,
++ (clockfreq / 100000) % 10);
++ seq_printf(m, "BogoMips:\t%lu.%02lu\n",
++ (loops_per_jiffy * HZ) / 500000,
++ ((loops_per_jiffy * HZ) / 5000) % 100);
++ seq_printf(m, "Calibration:\t%lu loops\n", (loops_per_jiffy * HZ));
++}
++
++/*
++ * show_cpuinfo()
++ * Get CPU information for use by the procfs.
++ */
++static int show_cpuinfo(struct seq_file *m, void *v)
++{
++ unsigned long n = (unsigned long)v - 1;
++
++#if defined(CONFIG_SMP)
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, n);
++#endif
++
++ /*
++ * Print the general processor information on the first
++ * call.
++ */
++ if (n == 0) {
++ show_processorinfo(m);
++ }
++
++#if defined(CONFIG_SMP)
++ /*
++ * For each hwthread, print if this hwthread is running Linux
++ * or is an I/O thread.
++ */
++ if (cpu_isset(n, cpu_online_map)) {
++ seq_printf(m, "cpu[%02lu]:\tthread id - %lu\n", n, p->tid);
++ } else {
++ seq_printf(m, "cpu[%02lu]:\toff-line\n", n);
++ }
++#endif
++ return 0;
++
++}
++
++static void *c_start(struct seq_file *m, loff_t *pos)
++{
++ unsigned long i = *pos;
++
++ return i < NR_CPUS ? (void *)(i + 1) : NULL;
++}
++
++static void *c_next(struct seq_file *m, void *v, loff_t *pos)
++{
++ ++*pos;
++ return c_start(m, pos);
++}
++
++static void c_stop(struct seq_file *m, void *v)
++{
++}
++
++const struct seq_operations cpuinfo_op = {
++ .start = c_start,
++ .next = c_next,
++ .stop = c_stop,
++ .show = show_cpuinfo,
++};
++
++/*
++ * processor_timers()
++ * Returns the timers available to Linux.
++ */
++unsigned int processor_timers(void)
++{
++ if (!pn) {
++ return 0;
++ }
++ return pn->timers;
++}
++
++/*
++ * processor_threads()
++ * Returns the threads available to Linux.
++ */
++unsigned int processor_threads(void)
++{
++ if (!pn) {
++ return 0;
++ }
++ return pn->threads;
++}
++
++/*
++ * processor_frequency()
++ * Returns the frequency of the system clock.
++ */
++unsigned int processor_frequency(void)
++{
++ if (!pn) {
++ return 0;
++ }
++ return pn->frequency;
++}
++EXPORT_SYMBOL(processor_frequency);
++
++/*
++ * processor_interrupts()
++ * Return the interrupts that are setup at boot time.
++ */
++int processor_interrupts(unsigned int *int0, unsigned int *int1)
++{
++ if (!pn) {
++ return -EFAULT;
++ }
++
++ if (int0) {
++ *int0 = pn->interrupt0;
++ }
++
++ if (int1) {
++ *int1 = pn->interrupt1;
++ }
++ return 0;
++}
++
++/*
++ * processor_ocm()
++ * Returns the OCM available to Linux.
++ */
++int processor_ocm(void **socm, void **eocm)
++{
++ if (!pn) {
++ return -ENOSYS;
++ }
++
++ *socm = pn->socm;
++ *eocm = pn->eocm;
++ return 0;
++}
++
++/*
++ * processor_dram()
++ * Returns the dram available to Linux.
++ */
++int processor_dram(void **sdram, void **edram)
++{
++ if (!pn) {
++ return -ENOSYS;
++ }
++
++ *sdram = pn->sdram;
++ *edram = pn->edram;
++ return 0;
++}
++
++void __init processor_init(void)
++{
++ /*
++ * If we do not have a trap node in the device tree, we leave the fault
++ * handling to the underlying hardware.
++ */
++ pn = (struct procnode *)devtree_find_node("processor");
++ if (!pn) {
++ printk(KERN_WARNING "processor node not found\n");
++ return;
++ }
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/ptrace.c
+@@ -0,0 +1,275 @@
++/*
++ * arch/ubicom32/kernel/ptrace.c
++ * Ubicom32 architecture ptrace implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * (C) 1994 by Hamish Macdonald
++ * Taken from linux/kernel/ptrace.c and modified for M680x0.
++ * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/smp.h>
++#include <linux/errno.h>
++#include <linux/ptrace.h>
++#include <linux/user.h>
++#include <linux/signal.h>
++#include <linux/uaccess.h>
++
++#include <asm/page.h>
++#include <asm/pgtable.h>
++#include <asm/system.h>
++#include <asm/cacheflush.h>
++#include <asm/processor.h>
++
++/*
++ * ptrace_getregs()
++ *
++ * Get all user integer registers.
++ */
++static inline int ptrace_getregs(struct task_struct *task, void __user *uregs)
++{
++ struct pt_regs *regs = task_pt_regs(task);
++ return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0;
++}
++
++/*
++ * ptrace_get_reg()
++ *
++ * Get contents of register REGNO in task TASK.
++ */
++static unsigned long ptrace_get_reg(struct task_struct *task, int regno)
++{
++ if (regno < sizeof(struct pt_regs)) {
++ struct pt_regs *pt_regs = task_pt_regs(task);
++ return *(unsigned long *)((long) pt_regs + regno);
++ }
++
++ return -EIO;
++}
++
++/*
++ * ptrace_put_reg()
++ * Write contents of register REGNO in task TASK.
++ */
++static int ptrace_put_reg(struct task_struct *task, int regno,
++ unsigned long data)
++{
++ if (regno <= sizeof(struct pt_regs) && regno != PT_FRAME_TYPE) {
++ struct pt_regs *pt_regs = task_pt_regs(task);
++ *(unsigned long *)((long) pt_regs + regno) = data;
++ return 0;
++ }
++ return -EIO;
++}
++
++/*
++ * ptrace_disable_single_step()
++ * Disable Single Step
++ */
++static int ptrace_disable_single_step(struct task_struct *task)
++{
++ /*
++ * Single Step not yet implemented, so must always be disabled
++ */
++ return 0;
++}
++
++/*
++ * ptrace_disable()
++ * Make sure the single step bit is not set.
++ * Called by kernel/ptrace.c when detaching..
++ */
++void ptrace_disable(struct task_struct *child)
++{
++ ptrace_disable_single_step(child);
++}
++
++/*
++ * arch_ptrace()
++ * architecture specific ptrace routine.
++ */
++long arch_ptrace(struct task_struct *child, long request, long addr, long data)
++{
++ int ret;
++ switch (request) {
++ /* when I and D space are separate, these will need to be fixed. */
++ case PTRACE_PEEKTEXT: /* read word at location addr. */
++ case PTRACE_PEEKDATA:
++ ret = generic_ptrace_peekdata(child, addr, data);
++ break;
++
++ /* read the word at location addr in the USER area. */
++ case PTRACE_PEEKUSR: {
++ unsigned long tmp;
++
++ ret = -EIO;
++ if (((unsigned long) addr > PT_INTERP_FDPIC_LOADMAP)
++ || (addr & 3))
++ break;
++
++ tmp = 0; /* Default return condition */
++
++ ret = -EIO;
++ if (addr < sizeof(struct pt_regs)) {
++ tmp = ptrace_get_reg(child, addr);
++ } else if (addr == PT_TEXT_ADDR) {
++ tmp = child->mm->start_code;
++ } else if (addr == PT_TEXT_END_ADDR) {
++ tmp = child->mm->end_code;
++ } else if (addr == PT_DATA_ADDR) {
++ tmp = child->mm->start_data;
++ } else if (addr == PT_EXEC_FDPIC_LOADMAP) {
++#ifdef CONFIG_BINFMT_ELF_FDPIC
++ tmp = child->mm->context.exec_fdpic_loadmap;
++#endif
++ } else if (addr == PT_INTERP_FDPIC_LOADMAP) {
++#ifdef CONFIG_BINFMT_ELF_FDPIC
++ tmp = child->mm->context.interp_fdpic_loadmap;
++#endif
++ } else {
++ break;
++ }
++
++ ret = put_user(tmp, (unsigned long *)data);
++ break;
++ }
++
++ case PTRACE_POKETEXT: /* write the word at location addr. */
++ case PTRACE_POKEDATA:
++ ret = generic_ptrace_pokedata(child, addr, data);
++
++ /*
++ * If we just changed some code so we need to
++ * correct the caches
++ */
++ if (request == PTRACE_POKETEXT && ret == 0) {
++ flush_icache_range(addr, addr + 4);
++ }
++ break;
++
++ case PTRACE_POKEUSR: /* write the word at location addr
++ * in the USER area */
++ ret = -EIO;
++
++ if (((unsigned long) addr > PT_DATA_ADDR) || (addr & 3))
++ break;
++
++ if (addr < sizeof(struct pt_regs)) {
++ ret = ptrace_put_reg(child, addr, data);
++ }
++ break;
++
++ case PTRACE_SYSCALL: /* continue and stop at next (return from)
++ * syscall */
++ case PTRACE_CONT: { /* restart after signal. */
++
++ ret = -EIO;
++ if (!valid_signal(data))
++ break;
++ if (request == PTRACE_SYSCALL)
++ set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
++ else
++ clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
++ child->exit_code = data;
++ /* make sure the single step bit is not set. */
++ ptrace_disable_single_step(child);
++ wake_up_process(child);
++ ret = 0;
++ break;
++ }
++
++ /*
++ * make the child exit. Best I can do is send it a sigkill.
++ * perhaps it should be put in the status that it wants to exit.
++ */
++ case PTRACE_KILL: {
++ ret = 0;
++ if (child->exit_state == EXIT_ZOMBIE) /* already dead */
++ break;
++ child->exit_code = SIGKILL;
++ /* make sure the single step bit is not set. */
++ ptrace_disable_single_step(child);
++ wake_up_process(child);
++ break;
++ }
++
++ case PTRACE_DETACH: /* detach a process that was attached. */
++ ret = ptrace_detach(child, data);
++ break;
++
++ case PTRACE_GETREGS: /* Get all gp regs from the child. */
++ ptrace_getregs(child, (unsigned long *)data);
++ ret = 0;
++ break;
++
++ case PTRACE_SETREGS: { /* Set all gp regs in the child. */
++ int i;
++ unsigned long tmp;
++ int count = sizeof(struct pt_regs) / sizeof(unsigned long);
++ for (i = 0; i < count; i++) {
++ if (get_user(tmp, (unsigned long *) data)) {
++ ret = -EFAULT;
++ break;
++ }
++ ptrace_put_reg(child, sizeof(unsigned long) * i, tmp);
++ data += sizeof(long);
++ }
++ ret = 0;
++ break;
++ }
++
++ default:
++ return ptrace_request(child, request, addr, data);
++ break;
++ }
++ return ret;
++}
++/*
++ * syscall_trace
++ *
++ * called by syscall enter/exit when the TIF_SYSCALL_TRACE bit is set.
++ */
++asmlinkage void syscall_trace(void)
++{
++ struct task_struct *cur = current;
++ if (!test_thread_flag(TIF_SYSCALL_TRACE))
++ return;
++ if (!(cur->ptrace & PT_PTRACED))
++ return;
++ ptrace_notify(SIGTRAP | ((cur->ptrace & PT_TRACESYSGOOD)
++ ? 0x80 : 0));
++ /*
++ * this isn't the same as continuing with a signal, but it will do
++ * for normal use. strace only continues with a signal if the
++ * stopping signal is not SIGTRAP. -brl
++ */
++ if (cur->exit_code) {
++ send_sig(cur->exit_code, current, 1);
++ current->exit_code = 0;
++ }
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/semaphore.c
+@@ -0,0 +1,159 @@
++/*
++ * arch/ubicom32/kernel/semaphore.c
++ * Ubicom32 architecture semaphore implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++/*
++ * Generic semaphore code. Buyer beware. Do your own
++ * specific changes in <asm/semaphore-helper.h>
++ */
++
++#include <linux/sched.h>
++#include <linux/err.h>
++#include <linux/init.h>
++#include <asm/semaphore-helper.h>
++
++#ifndef CONFIG_RMW_INSNS
++spinlock_t semaphore_wake_lock;
++#endif
++
++/*
++ * Semaphores are implemented using a two-way counter:
++ * The "count" variable is decremented for each process
++ * that tries to sleep, while the "waking" variable is
++ * incremented when the "up()" code goes to wake up waiting
++ * processes.
++ *
++ * Notably, the inline "up()" and "down()" functions can
++ * efficiently test if they need to do any extra work (up
++ * needs to do something only if count was negative before
++ * the increment operation.
++ *
++ * waking_non_zero() (from asm/semaphore.h) must execute
++ * atomically.
++ *
++ * When __up() is called, the count was negative before
++ * incrementing it, and we need to wake up somebody.
++ *
++ * This routine adds one to the count of processes that need to
++ * wake up and exit. ALL waiting processes actually wake up but
++ * only the one that gets to the "waking" field first will gate
++ * through and acquire the semaphore. The others will go back
++ * to sleep.
++ *
++ * Note that these functions are only called when there is
++ * contention on the lock, and as such all this is the
++ * "non-critical" part of the whole semaphore business. The
++ * critical part is the inline stuff in <asm/semaphore.h>
++ * where we want to avoid any extra jumps and calls.
++ */
++void __up(struct semaphore *sem)
++{
++ wake_one_more(sem);
++ wake_up(&sem->wait);
++}
++
++/*
++ * Perform the "down" function. Return zero for semaphore acquired,
++ * return negative for signalled out of the function.
++ *
++ * If called from __down, the return is ignored and the wait loop is
++ * not interruptible. This means that a task waiting on a semaphore
++ * using "down()" cannot be killed until someone does an "up()" on
++ * the semaphore.
++ *
++ * If called from __down_interruptible, the return value gets checked
++ * upon return. If the return value is negative then the task continues
++ * with the negative value in the return register (it can be tested by
++ * the caller).
++ *
++ * Either form may be used in conjunction with "up()".
++ *
++ */
++
++
++#define DOWN_HEAD(task_state) \
++ \
++ \
++ current->state = (task_state); \
++ add_wait_queue(&sem->wait, &wait); \
++ \
++ /* \
++ * Ok, we're set up. sem->count is known to be less than zero \
++ * so we must wait. \
++ * \
++ * We can let go the lock for purposes of waiting. \
++ * We re-acquire it after awaking so as to protect \
++ * all semaphore operations. \
++ * \
++ * If "up()" is called before we call waking_non_zero() then \
++ * we will catch it right away. If it is called later then \
++ * we will have to go through a wakeup cycle to catch it. \
++ * \
++ * Multiple waiters contend for the semaphore lock to see \
++ * who gets to gate through and who has to wait some more. \
++ */ \
++ for (;;) {
++
++#define DOWN_TAIL(task_state) \
++ current->state = (task_state); \
++ } \
++ current->state = TASK_RUNNING; \
++ remove_wait_queue(&sem->wait, &wait);
++
++void __sched __down(struct semaphore *sem)
++{
++ DECLARE_WAITQUEUE(wait, current);
++
++ DOWN_HEAD(TASK_UNINTERRUPTIBLE)
++ if (waking_non_zero(sem))
++ break;
++ schedule();
++ DOWN_TAIL(TASK_UNINTERRUPTIBLE)
++}
++
++int __sched __down_interruptible(struct semaphore *sem)
++{
++ DECLARE_WAITQUEUE(wait, current);
++ int ret = 0;
++
++ DOWN_HEAD(TASK_INTERRUPTIBLE)
++
++ ret = waking_non_zero_interruptible(sem, current);
++ if (ret) {
++ if (ret == 1)
++ /* ret != 0 only if we get interrupted -arca */
++ ret = 0;
++ break;
++ }
++ schedule();
++ DOWN_TAIL(TASK_INTERRUPTIBLE)
++ return ret;
++}
++
++int __down_trylock(struct semaphore *sem)
++{
++ return waking_non_zero_trylock(sem);
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/setup.c
+@@ -0,0 +1,189 @@
++/*
++ * arch/ubicom32/kernel/setup.c
++ * Ubicom32 architecture-dependent parts of system setup.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com)
++ * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org>
++ * Copyleft ()) 2000 James D. Schettine {james@telos-systems.com}
++ * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
++ * Copyright (C) 1995 Hamish Macdonald
++ * Copyright (C) 2000 Lineo Inc. (www.lineo.com)
++ * Copyright (C) 2001 Lineo, Inc. <www.lineo.com>
++ * 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/delay.h>
++#include <linux/interrupt.h>
++#include <linux/fb.h>
++#include <linux/module.h>
++#include <linux/console.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/bootmem.h>
++#include <linux/seq_file.h>
++#include <linux/init.h>
++
++#include <asm/devtree.h>
++#include <asm/setup.h>
++#include <asm/irq.h>
++#include <asm/machdep.h>
++#include <asm/pgtable.h>
++#include <asm/pgalloc.h>
++#include <asm/ubicom32-common.h>
++#include <asm/processor.h>
++#include <asm/bootargs.h>
++#include <asm/thread.h>
++
++unsigned long memory_start;
++EXPORT_SYMBOL(memory_start);
++
++unsigned long memory_end;
++EXPORT_SYMBOL(memory_end);
++
++static char __initdata command_line[COMMAND_LINE_SIZE];
++#ifdef CONFIG_CMDLINE_BOOL
++static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
++#endif
++
++extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
++
++/*
++ * setup_arch()
++ * Setup the architecture dependent portions of the system.
++ */
++void __init setup_arch(char **cmdline_p)
++{
++ int bootmap_size;
++
++ processor_init();
++ bootargs_init();
++
++ /*
++ * TODO: The memory regions should really come from the
++ * processor node.
++ */
++ memory_start = PAGE_ALIGN(((unsigned long)&_end));
++ memory_end = CONFIG_RAMBASE+CONFIG_RAMSIZE;
++
++ init_mm.start_code = (unsigned long) &_stext;
++ init_mm.end_code = (unsigned long) &_etext;
++ init_mm.end_data = (unsigned long) &_edata;
++ init_mm.brk = (unsigned long) 0;
++
++ strlcpy(boot_command_line, bootargs_get_cmdline(), COMMAND_LINE_SIZE);
++
++#ifdef CONFIG_CMDLINE_BOOL
++#ifdef CONFIG_CMDLINE_OVERRIDE
++ strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
++#else
++ if (builtin_cmdline[0]) {
++ /* append boot loader cmdline to builtin */
++ strlcat(builtin_cmdline, " ", COMMAND_LINE_SIZE);
++ strlcat(builtin_cmdline, boot_command_line, COMMAND_LINE_SIZE);
++ strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
++ }
++#endif
++#endif
++
++ strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
++ *cmdline_p = command_line;
++
++ parse_early_param();
++
++ printk(KERN_INFO "%s Processor, Ubicom, Inc. <www.ubicom.com>\n", CPU);
++
++#if defined(DEBUG)
++ printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x "
++ "BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext,
++ (int) &_sdata, (int) &_edata,
++ (int) &_sbss, (int) &_ebss);
++ printk(KERN_DEBUG "MEMORY -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x\n ",
++ (int) &_ebss, (int) memory_start,
++ (int) memory_start, (int) memory_end);
++#endif
++
++ /* Keep a copy of command line */
++ *cmdline_p = &command_line[0];
++ memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
++ boot_command_line[COMMAND_LINE_SIZE-1] = 0;
++
++#ifdef DEBUG
++ if (strlen(*cmdline_p))
++ printk(KERN_DEBUG "Command line: '%s'\n", *cmdline_p);
++#endif
++
++#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
++ conswitchp = &dummy_con;
++#endif
++
++ /*
++ * If we have a device tree, see if we have the nodes we need.
++ */
++ if (devtree) {
++ devtree_print();
++ }
++
++ /*
++ * From the arm initialization comment:
++ *
++ * This doesn't seem to be used by the Linux memory manager any
++ * more, but is used by ll_rw_block. If we can get rid of it, we
++ * also get rid of some of the stuff above as well.
++ *
++ * Note: max_low_pfn and max_pfn reflect the number of _pages_ in
++ * the system, not the maximum PFN.
++ */
++ max_pfn = max_low_pfn = (memory_end - PAGE_OFFSET) >> PAGE_SHIFT;
++
++ /*
++ * Give all the memory to the bootmap allocator, tell it to put the
++ * boot mem_map at the start of memory.
++ */
++ bootmap_size = init_bootmem_node(
++ NODE_DATA(0),
++ memory_start >> PAGE_SHIFT, /* map goes here */
++ PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */
++ memory_end >> PAGE_SHIFT);
++ /*
++ * Free the usable memory, we have to make sure we do not free
++ * the bootmem bitmap so we then reserve it after freeing it :-)
++ */
++ free_bootmem(memory_start, memory_end - memory_start);
++ reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
++
++ /*
++ * Get kmalloc into gear.
++ */
++ paging_init();
++
++ /*
++ * Fix up the thread_info structure, indicate this is a mainline Linux
++ * thread and setup the sw_ksp().
++ */
++ sw_ksp[thread_get_self()] = (unsigned int) current_thread_info();
++ thread_set_mainline(thread_get_self());
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/signal.c
+@@ -0,0 +1,458 @@
++/*
++ * arch/ubicom32/kernel/signal.c
++ * Ubicom32 architecture signal handling implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1991, 1992 Linus Torvalds
++ * Linux/m68k support by Hamish Macdonald
++ * 68060 fixes by Jesper Skov
++ * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab
++ * mathemu support by Roman Zippel
++ * ++roman (07/09/96): implemented signal stacks
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ *
++ * mathemu support by Roman Zippel
++ * (Note: fpstate in the signal context is completely ignored for the emulator
++ * and the internal floating point format is put on stack)
++ *
++ * ++roman (07/09/96): implemented signal stacks (specially for tosemu on
++ * Atari :-) Current limitation: Only one sigstack can be active at one time.
++ * If a second signal with SA_ONSTACK set arrives while working on a sigstack,
++ * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested
++ * signal handlers!
++ */
++
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/kernel.h>
++#include <linux/signal.h>
++#include <linux/syscalls.h>
++#include <linux/errno.h>
++#include <linux/wait.h>
++#include <linux/ptrace.h>
++#include <linux/unistd.h>
++#include <linux/stddef.h>
++#include <linux/highuid.h>
++#include <linux/tty.h>
++#include <linux/personality.h>
++#include <linux/binfmts.h>
++
++#include <asm/setup.h>
++#include <asm/uaccess.h>
++#include <asm/pgtable.h>
++#include <asm/traps.h>
++#include <asm/ucontext.h>
++
++#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
++
++/*
++ * asm signal return handlers.
++ */
++void ret_from_user_signal(void);
++void ret_from_user_rt_signal(void);
++asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs);
++
++/*
++ * Common signal suspend implementation
++ */
++static int signal_suspend(sigset_t *saveset, struct pt_regs *regs)
++{
++ regs->dn[0] = -EINTR;
++ while (1) {
++ current->state = TASK_INTERRUPTIBLE;
++ schedule();
++ if (!do_signal(saveset, regs)) {
++ continue;
++ }
++ /*
++ * If the current frame type is a signal trampoline we are
++ * actually going to call the signal handler so we return the
++ * desired d0 as the return value.
++ */
++ if (regs->frame_type == UBICOM32_FRAME_TYPE_SIGTRAMP) {
++ return regs->dn[0];
++ }
++ return -EINTR;
++ }
++ /*
++ * Should never get here
++ */
++ BUG();
++ return 0;
++}
++
++/*
++ * Atomically swap in the new signal mask, and wait for a signal.
++ */
++asmlinkage int do_sigsuspend(struct pt_regs *regs)
++{
++ old_sigset_t mask = regs->dn[0];
++ sigset_t saveset;
++
++ mask &= _BLOCKABLE;
++ spin_lock_irq(¤t->sighand->siglock);
++ saveset = current->blocked;
++ siginitset(¤t->blocked, mask);
++ recalc_sigpending();
++ spin_unlock_irq(¤t->sighand->siglock);
++
++ /*
++ * Call common handler
++ */
++ return signal_suspend(&saveset, regs);
++}
++
++asmlinkage int
++do_rt_sigsuspend(struct pt_regs *regs)
++{
++ sigset_t *unewset = (sigset_t *)regs->dn[0];
++ size_t sigsetsize = (size_t)regs->dn[1];
++ sigset_t saveset, newset;
++
++ /* XXX: Don't preclude handling different sized sigset_t's. */
++ if (sigsetsize != sizeof(sigset_t))
++ return -EINVAL;
++
++ if (copy_from_user(&newset, unewset, sizeof(newset)))
++ return -EFAULT;
++ sigdelsetmask(&newset, ~_BLOCKABLE);
++
++ spin_lock_irq(¤t->sighand->siglock);
++ saveset = current->blocked;
++ current->blocked = newset;
++ recalc_sigpending();
++ spin_unlock_irq(¤t->sighand->siglock);
++
++ /*
++ * Call common handler
++ */
++ return signal_suspend(&saveset, regs);
++}
++
++asmlinkage int
++sys_sigaction(int sig, const struct old_sigaction *act,
++ struct old_sigaction *oact)
++{
++ struct k_sigaction new_ka, old_ka;
++ int ret;
++
++ if (act) {
++ old_sigset_t mask;
++ if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
++ __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
++ __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
++ return -EFAULT;
++ __get_user(new_ka.sa.sa_flags, &act->sa_flags);
++ __get_user(mask, &act->sa_mask);
++ siginitset(&new_ka.sa.sa_mask, mask);
++ }
++
++ ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
++
++ if (!ret && oact) {
++ if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
++ __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
++ __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
++ return -EFAULT;
++ __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
++ __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
++ }
++
++ return ret;
++}
++
++asmlinkage int
++do_sys_sigaltstack(struct pt_regs *regs)
++{
++ const stack_t *uss = (stack_t *) regs->dn[0];
++ stack_t *uoss = (stack_t *)regs->dn[1];
++ return do_sigaltstack(uss, uoss, regs->an[7]);
++}
++
++/*
++ * fdpic_func_descriptor describes sa_handler when the application is FDPIC
++ */
++struct fdpic_func_descriptor {
++ unsigned long text;
++ unsigned long GOT;
++};
++
++/*
++ * rt_sigframe is stored on the user stack immediately before (above)
++ * the signal handlers stack.
++ */
++struct rt_sigframe
++{
++ unsigned long syscall_number; /* This holds __NR_rt_sigreturn. */
++ unsigned long restore_all_regs; /* This field gets set to 1 if the frame
++ * type is TRAP or INTERRUPT. */
++ siginfo_t *info;
++ struct ucontext uc;
++ int sig;
++ void *pretcode;
++};
++
++/*
++ * Do a signal return; undo the signal stack.
++ */
++asmlinkage int do_sigreturn(unsigned long __unused)
++{
++ BUG();
++ return 0;
++}
++
++asmlinkage int do_rt_sigreturn(struct pt_regs *regs)
++{
++ unsigned long usp = regs->an[7];
++ struct rt_sigframe *frame = (struct rt_sigframe *)(usp);
++ sigset_t set;
++
++ if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
++ goto badframe;
++ if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
++ goto badframe;
++
++ sigdelsetmask(&set, ~_BLOCKABLE);
++ spin_lock_irq(¤t->sighand->siglock);
++ current->blocked = set;
++ recalc_sigpending();
++ spin_unlock_irq(¤t->sighand->siglock);
++
++ if (copy_from_user(regs, &frame->uc.uc_mcontext, sizeof(struct pt_regs)))
++ goto badframe;
++ return regs->dn[0];
++
++badframe:
++ force_sig(SIGSEGV, current);
++ return 0;
++}
++
++static inline void *
++get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
++{
++ unsigned long usp;
++
++ /* Default to using normal stack. */
++ usp = regs->an[7];
++
++ /* This is the X/Open sanctioned signal stack switching. */
++ if (ka->sa.sa_flags & SA_ONSTACK) {
++ if (!sas_ss_flags(usp))
++ usp = current->sas_ss_sp + current->sas_ss_size;
++ }
++ return (void *)((usp - frame_size) & ~0x3);
++}
++
++/*
++ * signal_trampoline: Defined in ubicom32_syscall.S
++ */
++asmlinkage void signal_trampoline(void)__attribute__((naked));
++
++static void setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
++ sigset_t *set, struct pt_regs *regs)
++{
++ struct rt_sigframe *frame;
++ int err = 0;
++
++ frame = (struct rt_sigframe *) get_sigframe(ka, regs, sizeof(*frame));
++
++ /*
++ * The 'err |=' have been may criticized as bad code style, but I
++ * strongly suspect that we want this code to be fast. So for
++ * now it stays as is.
++ */
++ err |= __put_user( ( (current_thread_info()->exec_domain)
++ && (current_thread_info()->exec_domain->signal_invmap)
++ && (sig < 32) )
++ ? current_thread_info()->exec_domain->signal_invmap[sig]
++ : sig, &frame->sig);
++ err |= __put_user(info, &frame->info);
++
++ /* Create the ucontext. */
++ err |= __put_user(0, &frame->uc.uc_flags);
++ err |= __put_user(0, &frame->uc.uc_link);
++ err |= __put_user((void *)current->sas_ss_sp,
++ &frame->uc.uc_stack.ss_sp);
++ err |= __put_user(sas_ss_flags(regs->an[7]),
++ &frame->uc.uc_stack.ss_flags);
++ err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
++ err |= __put_user(__NR_rt_sigreturn, &frame->syscall_number);
++ if ((regs->frame_type == UBICOM32_FRAME_TYPE_TRAP) ||
++ (regs->frame_type == UBICOM32_FRAME_TYPE_INTERRUPT)) {
++ err |= __put_user(1, &frame->restore_all_regs);
++ } else {
++ err |= __put_user(0, &frame->restore_all_regs);
++ }
++ err |= copy_to_user (&frame->uc.uc_mcontext.sc_regs, regs, sizeof(struct pt_regs));
++ err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set));
++
++ if (err)
++ goto give_sigsegv;
++
++ /*
++ * Set up registers for signal handler NOTE: Do not modify dn[14], it
++ * contains the userspace tls pointer, so it important that it carries
++ * over to the signal handler.
++ */
++ regs->an[7] = (unsigned long)frame;
++ regs->pc = (unsigned long) signal_trampoline;
++ regs->an[5] = (unsigned long) signal_trampoline;
++ regs->dn[0] = sig;
++ regs->dn[1] = (unsigned long) frame->info;
++ regs->dn[2] = (unsigned int) &frame->uc;
++
++ /*
++ * If this is FDPIC then the signal handler is actually a function
++ * descriptor.
++ */
++ if (current->personality & FDPIC_FUNCPTRS) {
++ struct fdpic_func_descriptor __user *funcptr =
++ (struct fdpic_func_descriptor *) ka->sa.sa_handler;
++ err |= __get_user(regs->dn[3], &funcptr->text);
++ err |= __get_user(regs->an[0], &funcptr->GOT);
++ if (err)
++ goto give_sigsegv;
++
++ /*
++ * The funcdesc must be in a3 as this is required for the lazy
++ * resolver in ld.so, if the application is not FDPIC a3 is not
++ * used.
++ */
++ regs->an[3] = (unsigned long) funcptr;
++
++ } else {
++ regs->dn[3] = (unsigned long)ka->sa.sa_handler;
++ regs->an[0] = 0;
++ }
++
++ regs->frame_type = UBICOM32_FRAME_TYPE_SIGTRAMP;
++
++ return;
++
++give_sigsegv:
++ /* user space exception */
++ force_sigsegv(sig, current);
++}
++
++static inline void
++handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
++{
++ switch (regs->dn[0]) {
++ case -ERESTARTNOHAND:
++ if (!has_handler)
++ goto do_restart;
++ regs->dn[0] = -EINTR;
++ break;
++
++ case -ERESTARTSYS:
++ if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) {
++ regs->dn[0] = -EINTR;
++ break;
++ }
++ /* fallthrough */
++ case -ERESTARTNOINTR:
++ do_restart:
++ regs->dn[0] = regs->original_dn_0;
++ regs->pc -= 8;
++ regs->an[5] -= 8;
++ break;
++ }
++}
++
++/*
++ * OK, we're invoking a handler
++ */
++static void
++handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
++ sigset_t *oldset, struct pt_regs *regs)
++{
++ /* are we from a system call? */
++ if (regs->frame_type == -1)
++ /* If so, check system call restarting.. */
++ handle_restart(regs, ka, 1);
++
++ /* set up the stack frame */
++ setup_rt_frame(sig, ka, info, oldset, regs);
++
++ if (ka->sa.sa_flags & SA_ONESHOT)
++ ka->sa.sa_handler = SIG_DFL;
++
++ spin_lock_irq(¤t->sighand->siglock);
++ sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask);
++ if (!(ka->sa.sa_flags & SA_NODEFER))
++ sigaddset(¤t->blocked,sig);
++ recalc_sigpending();
++ spin_unlock_irq(¤t->sighand->siglock);
++}
++
++/*
++ * Note that 'init' is a special process: it doesn't get signals it doesn't
++ * want to handle. Thus you cannot kill init even with a SIGKILL even by
++ * mistake.
++ */
++asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs)
++{
++ struct k_sigaction ka;
++ siginfo_t info;
++ int signr;
++
++ /*
++ * We want the common case to go fast, which
++ * is why we may in certain cases get here from
++ * kernel mode. Just return without doing anything
++ * if so.
++ */
++ if (!user_mode(regs))
++ return 1;
++
++ if (!oldset)
++ oldset = ¤t->blocked;
++
++ signr = get_signal_to_deliver(&info, &ka, regs, NULL);
++ if (signr > 0) {
++ /* Whee! Actually deliver the signal. */
++ handle_signal(signr, &ka, &info, oldset, regs);
++ return 1;
++ }
++
++ /* Did we come from a system call? */
++ if (regs->frame_type == -1) {
++ /* Restart the system call - no handlers present */
++ handle_restart(regs, NULL, 0);
++ }
++
++ return 0;
++}
++
++/*
++ * sys_sigreturn()
++ * Return handler for signal clean-up.
++ *
++ * NOTE: Ubicom32 does not use this syscall. Instead we rely
++ * on do_rt_sigreturn().
++ */
++asmlinkage long sys_sigreturn(void)
++{
++ return -ENOSYS;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/smp.c
+@@ -0,0 +1,808 @@
++/*
++ * arch/ubicom32/kernel/smp.c
++ * SMP implementation for Ubicom32 processors.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
++ * Copyright (C) 1999 David Mosberger-Tang <davidm@hpl.hp.com>
++ * Copyright (C) 2001,2004 Grant Grundler <grundler@parisc-linux.org>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/spinlock.h>
++#include <linux/slab.h>
++
++#include <linux/kernel.h>
++#include <linux/bootmem.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/smp.h>
++#include <linux/kernel_stat.h>
++#include <linux/mm.h>
++#include <linux/err.h>
++#include <linux/delay.h>
++#include <linux/bitops.h>
++#include <linux/cpu.h>
++#include <linux/profile.h>
++#include <linux/delay.h>
++#include <linux/io.h>
++#include <linux/ptrace.h>
++#include <linux/unistd.h>
++#include <linux/irq.h>
++
++#include <asm/system.h>
++#include <asm/atomic.h>
++#include <asm/current.h>
++#include <asm/tlbflush.h>
++#include <asm/timex.h>
++#include <asm/cpu.h>
++#include <asm/irq.h>
++#include <asm/processor.h>
++#include <asm/thread.h>
++#include <asm/sections.h>
++#include <asm/ip5000.h>
++
++/*
++ * Mask the debug printout for IPI because they are too verbose
++ * for regular debugging.
++ */
++
++// #define DEBUG_SMP 1
++#if !defined(DEBUG_SMP)
++#define smp_debug(lvl, ...)
++#else
++static unsigned int smp_debug_lvl = 50;
++#define smp_debug(lvl, printargs...) \
++ if (lvl >= smp_debug_lvl) { \
++ printk(printargs); \
++ }
++#endif
++
++#if !defined(DEBUG_SMP)
++#define DEBUG_ASSERT(cond)
++#else
++#define DEBUG_ASSERT(cond) \
++ if (!(cond)) { \
++ THREAD_STALL; \
++ }
++#endif
++
++/*
++ * List of IPI Commands (more than one can be set at a time).
++ */
++enum ipi_message_type {
++ IPI_NOP,
++ IPI_RESCHEDULE,
++ IPI_CALL_FUNC,
++ IPI_CALL_FUNC_SINGLE,
++ IPI_CPU_STOP,
++ IPI_CPU_TIMER,
++};
++
++/*
++ * These values are properly adjusted by smp_prepare_cpus() below. They are
++ * required to be declared in the arch directory if CONFIG_SMP is set.
++ */
++cpumask_t cpu_online_map = CPU_MASK_NONE; /* Bitmap of online CPUs */
++EXPORT_SYMBOL(cpu_online_map);
++
++cpumask_t cpu_possible_map = CPU_MASK_ALL; /* Bitmap of Present CPUs */
++EXPORT_SYMBOL(cpu_possible_map);
++
++/*
++ * We maintain a hardware thread oriented view of online threads
++ * and those involved or needing IPI.
++ */
++static unsigned long smp_online_threads = 0;
++static unsigned long smp_needs_ipi = 0;
++static unsigned long smp_inside_ipi = 0;
++static unsigned long smp_irq_affinity[NR_IRQS];
++
++/*
++ * What do we need to track on a per cpu/thread basis?
++ */
++DEFINE_PER_CPU(struct cpuinfo_ubicom32, cpu_data);
++
++/*
++ * Each thread cpuinfo IPI information is guarded by a lock
++ * that is kept local to this file.
++ */
++DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
++
++/*
++ * The IPI(s) are based on a software IRQ through the LDSR.
++ */
++unsigned int smp_ipi_irq;
++
++/*
++ * Define a spinlock so that only one cpu is able to modify the
++ * smp_needs_ipi and to set/clear the IRQ at a time.
++ */
++DEFINE_SPINLOCK(smp_ipi_lock);
++
++/*
++ * smp_halt_processor()
++ * Halt this hardware thread.
++ */
++static void smp_halt_processor(void)
++{
++ int cpuid = thread_get_self();
++ cpu_clear(smp_processor_id(), cpu_online_map);
++ local_irq_disable();
++ printk(KERN_EMERG "cpu[%d] has halted. It is not OK to turn off power \
++ until all cpu's are off.\n", cpuid);
++ for (;;) {
++ thread_suspend();
++ }
++}
++
++/*
++ * ipi_interrupt()
++ * Handle an Interprocessor Interrupt.
++ */
++static irqreturn_t ipi_interrupt(int irq, void *dev_id)
++{
++ int cpuid = smp_processor_id();
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpuid);
++ unsigned long ops;
++
++ /*
++ * Count this now; we may make a call that never returns.
++ */
++ p->ipi_count++;
++
++ /*
++ * We are about to process all ops. If another cpu has stated
++ * that we need an IPI, we will have already processed it. By
++ * clearing our smp_needs_ipi, and processing all ops,
++ * we reduce the number of IPI interrupts. However, this introduces
++ * the possibility that smp_needs_ipi will be clear and the soft irq
++ * will have gone off; so we need to make the get_affinity() path
++ * tolerant of spurious interrupts.
++ */
++ spin_lock(&smp_ipi_lock);
++ smp_needs_ipi &= ~p->tid;
++ spin_unlock(&smp_ipi_lock);
++
++ for (;;) {
++ /*
++ * Read the set of IPI commands we should handle.
++ */
++ spinlock_t *lock = &per_cpu(ipi_lock, cpuid);
++ spin_lock(lock);
++ ops = p->ipi_pending;
++ p->ipi_pending = 0;
++ spin_unlock(lock);
++
++ /*
++ * If we have no IPI commands to execute, break out.
++ */
++ if (!ops) {
++ break;
++ }
++
++ /*
++ * Execute the set of commands in the ops word, one command
++ * at a time in no particular order. Strip of each command
++ * as we execute it.
++ */
++ while (ops) {
++ unsigned long which = ffz(~ops);
++ ops &= ~(1 << which);
++
++ BUG_ON(!irqs_disabled());
++ switch (which) {
++ case IPI_NOP:
++ smp_debug(100, KERN_INFO "cpu[%d]: "
++ "IPI_NOP\n", cpuid);
++ break;
++
++ case IPI_RESCHEDULE:
++ /*
++ * Reschedule callback. Everything to be
++ * done is done by the interrupt return path.
++ */
++ smp_debug(200, KERN_INFO "cpu[%d]: "
++ "IPI_RESCHEDULE\n", cpuid);
++ break;
++
++ case IPI_CALL_FUNC:
++ smp_debug(100, KERN_INFO "cpu[%d]: "
++ "IPI_CALL_FUNC\n", cpuid);
++ generic_smp_call_function_interrupt();
++ break;
++
++ case IPI_CALL_FUNC_SINGLE:
++ smp_debug(100, KERN_INFO "cpu[%d]: "
++ "IPI_CALL_FUNC_SINGLE\n", cpuid);
++ generic_smp_call_function_single_interrupt();
++ break;
++
++ case IPI_CPU_STOP:
++ smp_debug(100, KERN_INFO "cpu[%d]: "
++ "IPI_CPU_STOP\n", cpuid);
++ smp_halt_processor();
++ break;
++
++#if !defined(CONFIG_LOCAL_TIMERS)
++ case IPI_CPU_TIMER:
++ smp_debug(100, KERN_INFO "cpu[%d]: "
++ "IPI_CPU_TIMER\n", cpuid);
++#if defined(CONFIG_GENERIC_CLOCKEVENTS)
++ local_timer_interrupt();
++#else
++ update_process_times(user_mode(get_irq_regs()));
++ profile_tick(CPU_PROFILING);
++#endif
++#endif
++ break;
++
++ default:
++ printk(KERN_CRIT "cpu[%d]: "
++ "Unknown IPI: %lu\n", cpuid, which);
++
++ return IRQ_NONE;
++ }
++
++ /*
++ * Let in any pending interrupts
++ */
++ BUG_ON(!irqs_disabled());
++ local_irq_enable();
++ local_irq_disable();
++ }
++ }
++ return IRQ_HANDLED;
++}
++
++/*
++ * ipi_send()
++ * Send an Interprocessor Interrupt.
++ */
++static void ipi_send(int cpu, enum ipi_message_type op)
++{
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpu);
++ spinlock_t *lock = &per_cpu(ipi_lock, cpu);
++ unsigned long flags;
++
++ /*
++ * We protect the setting of the ipi_pending field and ensure
++ * that the ipi delivery mechanism and interrupt are atomically
++ * handled.
++ */
++ spin_lock_irqsave(lock, flags);
++ p->ipi_pending |= 1 << op;
++ spin_unlock_irqrestore(lock, flags);
++
++ spin_lock_irqsave(&smp_ipi_lock, flags);
++ smp_needs_ipi |= (1 << p->tid);
++ ubicom32_set_interrupt(smp_ipi_irq);
++ spin_unlock_irqrestore(&smp_ipi_lock, flags);
++}
++
++/*
++ * ipi_send_mask
++ * Send an IPI to each cpu in mask.
++ */
++static inline void ipi_send_mask(unsigned int op, cpumask_t mask)
++{
++ int cpu;
++ for_each_cpu_mask(cpu, mask) {
++ ipi_send(cpu, op);
++ }
++}
++
++/*
++ * ipi_send_allbutself()
++ * Send an IPI to all threads but ourselves.
++ */
++static inline void ipi_send_allbutself(unsigned int op)
++{
++ int self = smp_processor_id();
++ cpumask_t result = cpu_online_map;
++ cpu_clear(self, result);
++ ipi_send_mask(op, result);
++}
++
++/*
++ * smp_enable_vector()
++ */
++static void smp_enable_vector(unsigned int irq)
++{
++ ubicom32_clear_interrupt(smp_ipi_irq);
++ ldsr_enable_vector(irq);
++}
++
++/*
++ * smp_disable_vector()
++ * Disable the interrupt by clearing the appropriate bit in the
++ * LDSR Mask Register.
++ */
++static void smp_disable_vector(unsigned int irq)
++{
++ ldsr_disable_vector(irq);
++}
++
++/*
++ * smp_mask_vector()
++ */
++static void smp_mask_vector(unsigned int irq)
++{
++ ldsr_mask_vector(irq);
++}
++
++/*
++ * smp_unmask_vector()
++ */
++static void smp_unmask_vector(unsigned int irq)
++{
++ ldsr_unmask_vector(irq);
++}
++
++/*
++ * smp_end_vector()
++ * Called once an interrupt is completed (reset the LDSR mask).
++ */
++static void smp_end_vector(unsigned int irq)
++{
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, smp_processor_id());
++ spin_lock(&smp_ipi_lock);
++ smp_inside_ipi &= ~(1 << p->tid);
++ if (smp_inside_ipi) {
++ spin_unlock(&smp_ipi_lock);
++ return;
++ }
++ spin_unlock(&smp_ipi_lock);
++ ldsr_unmask_vector(irq);
++}
++
++/*
++ * Special hanlder functions for SMP.
++ */
++static struct irq_chip ubicom32_smp_chip = {
++ .name = "UbicoIPI",
++ .startup = NULL,
++ .shutdown = NULL,
++ .enable = smp_enable_vector,
++ .disable = smp_disable_vector,
++ .ack = NULL,
++ .mask = smp_mask_vector,
++ .unmask = smp_unmask_vector,
++ .end = smp_end_vector,
++};
++
++/*
++ * smp_reset_ipi()
++ * None of these cpu(s) got their IPI, turn it back on.
++ *
++ * Note: This is called by the LDSR which is not a full
++ * Linux cpu. Thus you must use the raw form of locks
++ * because lock debugging will not work on the partial
++ * cpu nature of the LDSR.
++ */
++void smp_reset_ipi(unsigned long mask)
++{
++ __raw_spin_lock(&smp_ipi_lock.raw_lock);
++ smp_needs_ipi |= mask;
++ smp_inside_ipi &= ~mask;
++ ubicom32_set_interrupt(smp_ipi_irq);
++ __raw_spin_unlock(&smp_ipi_lock.raw_lock);
++}
++
++/*
++ * smp_get_affinity()
++ * Choose the thread affinity for this interrupt.
++ *
++ * Note: This is called by the LDSR which is not a full
++ * Linux cpu. Thus you must use the raw form of locks
++ * because lock debugging will not work on the partial
++ * cpu nature of the LDSR.
++ */
++unsigned long smp_get_affinity(unsigned int irq, int *all)
++{
++ unsigned long mask = 0;
++
++ /*
++ * Most IRQ(s) are delivered in a round robin fashion.
++ */
++ if (irq != smp_ipi_irq) {
++ unsigned long result = smp_irq_affinity[irq] & smp_online_threads;
++ DEBUG_ASSERT(result);
++ *all = 0;
++ return result;
++ }
++
++ /*
++ * This is an IPI request. Return all cpu(s) scheduled for an IPI.
++ * We also track those cpu(s) that are going to be "receiving" IPI this
++ * round. When all CPU(s) have called smp_end_vector(),
++ * we will unmask the IPI interrupt.
++ */
++ __raw_spin_lock(&smp_ipi_lock.raw_lock);
++ ubicom32_clear_interrupt(smp_ipi_irq);
++ if (smp_needs_ipi) {
++ mask = smp_needs_ipi;
++ smp_inside_ipi |= smp_needs_ipi;
++ smp_needs_ipi = 0;
++ }
++ __raw_spin_unlock(&smp_ipi_lock.raw_lock);
++ *all = 1;
++ return mask;
++}
++
++/*
++ * smp_set_affinity()
++ * Set the affinity for this irq but store the value in tid(s).
++ */
++void smp_set_affinity(unsigned int irq, cpumask_t dest)
++{
++ int cpuid;
++ unsigned long *paffinity = &smp_irq_affinity[irq];
++
++ /*
++ * If none specified, all cpus are allowed.
++ */
++ if (cpus_empty(dest)) {
++ *paffinity = 0xffffffff;
++ return;
++ }
++
++ /*
++ * Make sure to clear the old value before setting up the
++ * list.
++ */
++ *paffinity = 0;
++ for_each_cpu_mask(cpuid, dest) {
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpuid);
++ *paffinity |= (1 << p->tid);
++ }
++}
++
++/*
++ * smp_send_stop()
++ * Send a stop request to all CPU but this one.
++ */
++void smp_send_stop(void)
++{
++ ipi_send_allbutself(IPI_CPU_STOP);
++}
++
++/*
++ * smp_send_timer_all()
++ * Send all cpu(s) but this one, a request to update times.
++ */
++void smp_send_timer_all(void)
++{
++ ipi_send_allbutself(IPI_CPU_TIMER);
++}
++
++/*
++ * smp_timer_broadcast()
++ * Use an IPI to broadcast a timer message
++ */
++void smp_timer_broadcast(cpumask_t mask)
++{
++ ipi_send_mask(IPI_CPU_TIMER, mask);
++}
++
++/*
++ * smp_send_reschedule()
++ * Send a reschedule request to the specified cpu.
++ */
++void smp_send_reschedule(int cpu)
++{
++ ipi_send(cpu, IPI_RESCHEDULE);
++}
++
++/*
++ * arch_send_call_function_ipi()
++ * Cause each cpu in the mask to call the generic function handler.
++ */
++void arch_send_call_function_ipi(cpumask_t mask)
++{
++ int cpu;
++ for_each_cpu_mask(cpu, mask) {
++ ipi_send(cpu, IPI_CALL_FUNC);
++ }
++}
++
++/*
++ * arch_send_call_function_single_ipi()
++ * Cause the specified cpu to call the generic function handler.
++ */
++void arch_send_call_function_single_ipi(int cpu)
++{
++ ipi_send(cpu, IPI_CALL_FUNC_SINGLE);
++}
++
++/*
++ * smp_mainline_start()
++ * Start a slave thread executing a mainline Linux context.
++ */
++static void __init smp_mainline_start(void *arg)
++{
++ int cpuid = smp_processor_id();
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpuid);
++
++ BUG_ON(p->tid != thread_get_self());
++
++ /*
++ * Well, support 2.4 linux scheme as well.
++ */
++ if (cpu_test_and_set(cpuid, cpu_online_map)) {
++ printk(KERN_CRIT "cpu[%d]: already initialized!\n", cpuid);
++ smp_halt_processor();
++ return;
++ }
++
++ /*
++ * Initialise the idle task for this CPU
++ */
++ atomic_inc(&init_mm.mm_count);
++ current->active_mm = &init_mm;
++ if (current->mm) {
++ printk(KERN_CRIT "cpu[%d]: idle task already has memory "
++ "management\n", cpuid);
++ smp_halt_processor();
++ return;
++ }
++
++ /*
++ * TODO: X86 does this prior to calling notify, try to understand why?
++ */
++ preempt_disable();
++
++#if defined(CONFIG_GENERIC_CLOCKEVENTS)
++ /*
++ * Setup a local timer event so that this cpu will get timer interrupts
++ */
++ if (local_timer_setup(cpuid) == -1) {
++ printk(KERN_CRIT "cpu[%d]: timer alloc failed\n", cpuid);
++ smp_halt_processor();
++ return;
++ }
++#endif
++
++ /*
++ * Notify those interested that we are up and alive. This must
++ * be done before interrupts are enabled. It must also be completed
++ * before the bootstrap cpu returns from __cpu_up() (see comment
++ * above cpu_set() of the cpu_online_map).
++ */
++ notify_cpu_starting(cpuid);
++
++ /*
++ * Indicate that this thread is now online and present. Setting
++ * cpu_online_map has the side effect of allowing the bootstrap
++ * cpu to continue along; so anything that MUST be done prior to the
++ * bootstrap cpu returning from __cpu_up() needs to go above here.
++ */
++ cpu_set(cpuid, cpu_online_map);
++ cpu_set(cpuid, cpu_present_map);
++
++ /*
++ * Maintain a thread mapping in addition to the cpu mapping.
++ */
++ smp_online_threads |= (1 << p->tid);
++
++ /*
++ * Enable interrupts for this thread.
++ */
++ local_irq_enable();
++
++ /*
++ * Enter the idle loop and wait for a timer to schedule some work.
++ */
++ printk(KERN_INFO "cpu[%d]: entering cpu_idle()\n", cpuid);
++ cpu_idle();
++
++ /* Not Reached */
++}
++
++/*
++ * smp_cpus_done()
++ * Called once the kernel_init() has brought up all cpu(s).
++ */
++void smp_cpus_done(unsigned int cpu_max)
++{
++ /* Do Nothing */
++}
++
++/*
++ * __cpu_up()
++ * Called to startup a sepcific cpu.
++ */
++int __cpuinit __cpu_up(unsigned int cpu)
++{
++ struct task_struct *idle;
++ unsigned int *stack;
++ long timeout;
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, cpu);
++
++ /*
++ * Create an idle task for this CPU.
++ */
++ idle = fork_idle(cpu);
++ if (IS_ERR(idle)) {
++ panic("cpu[%d]: fork failed\n", cpu);
++ return -ENOSYS;
++ }
++ task_thread_info(idle)->cpu = cpu;
++
++ /*
++ * Setup the sw_ksp[] to point to this new task.
++ */
++ sw_ksp[p->tid] = (unsigned int)idle->stack;
++ stack = (unsigned int *)(sw_ksp[p->tid] + PAGE_SIZE - 8);
++
++ /*
++ * Cause the specified thread to execute our smp_mainline_start
++ * function as a TYPE_NORMAL thread.
++ */
++ printk(KERN_INFO "cpu[%d]: launching mainline Linux thread\n", cpu);
++ if (thread_start(p->tid, smp_mainline_start, (void *)NULL, stack,
++ THREAD_TYPE_NORMAL) == -1) {
++ printk(KERN_WARNING "cpu[%d]: failed thread_start\n", cpu);
++ return -ENOSYS;
++ }
++
++ /*
++ * Wait for the thread to start up. The thread will set
++ * the online bit when it is running. Our caller execpts the
++ * cpu to be online if we return 0.
++ */
++ for (timeout = 0; timeout < 10000; timeout++) {
++ if (cpu_online(cpu)) {
++ break;
++ }
++
++ udelay(100);
++ barrier();
++ continue;
++ }
++
++ if (!cpu_online(cpu)) {
++ printk(KERN_CRIT "cpu[%d]: failed to live after %ld us\n",
++ cpu, timeout * 100);
++ return -ENOSYS;
++ }
++
++ printk(KERN_INFO "cpu[%d]: came alive after %ld us\n",
++ cpu, timeout * 100);
++ return 0;
++}
++
++/*
++ * Data used by setup_irq for the IPI.
++ */
++static struct irqaction ipi_irq = {
++ .name = "ipi",
++ .flags = IRQF_DISABLED | IRQF_PERCPU,
++ .handler = ipi_interrupt,
++};
++
++/*
++ * smp_prepare_cpus()
++ * Mark threads that are available to Linux as possible cpus(s).
++ */
++void __init smp_prepare_cpus(unsigned int max_cpus)
++{
++ int i;
++
++ /*
++ * We will need a software IRQ to send IPI(s). We will use
++ * a single software IRQ for all IPI(s).
++ */
++ if (irq_soft_alloc(&smp_ipi_irq) < 0) {
++ panic("no software IRQ is available\n");
++ return;
++ }
++
++ /*
++ * For the IPI interrupt, we want to use our own chip definition.
++ * This allows us to define what happens in SMP IPI without affecting
++ * the performance of the other interrupts.
++ *
++ * Next, Register the IPI interrupt function against the soft IRQ.
++ */
++ set_irq_chip(smp_ipi_irq, &ubicom32_smp_chip);
++ setup_irq(smp_ipi_irq, &ipi_irq);
++
++ /*
++ * We use the device tree node to determine how many
++ * free cpus we will have (up to NR_CPUS) and we indicate
++ * that those cpus are present.
++ *
++ * We need to do this very early in the SMP case
++ * because the Linux init code uses the cpu_present_map.
++ */
++ for_each_possible_cpu(i) {
++ thread_t tid;
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, i);
++
++ /*
++ * Skip the bootstrap cpu
++ */
++ if (i == 0) {
++ continue;
++ }
++
++ /*
++ * If we have a free thread left in the mask,
++ * indicate that the cpu is present.
++ */
++ tid = thread_alloc();
++ if (tid == (thread_t)-1) {
++ break;
++ }
++
++ /*
++ * Save the hardware thread id for this cpu.
++ */
++ p->tid = tid;
++ cpu_set(i, cpu_present_map);
++ printk(KERN_INFO "cpu[%d]: added to cpu_present_map - tid: %d\n", i, tid);
++ }
++}
++
++/*
++ * smp_prepare_boot_cpu()
++ * Copy the per_cpu data into the appropriate spot for the bootstrap cpu.
++ *
++ * The code in boot_cpu_init() has already set the boot cpu's
++ * state in the possible, present, and online maps.
++ */
++void __devinit smp_prepare_boot_cpu(void)
++{
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, 0);
++
++ smp_online_threads |= (1 << p->tid);
++ printk(KERN_INFO "cpu[%d]: bootstrap CPU online - tid: %ld\n",
++ current_thread_info()->cpu, p->tid);
++}
++
++/*
++ * smp_setup_processor_id()
++ * Set the current_thread_info() structure cpu value.
++ *
++ * We set the value to the true hardware thread value that we are running on.
++ * NOTE: this function overrides the weak alias function in main.c
++ */
++void __init smp_setup_processor_id(void)
++{
++ struct cpuinfo_ubicom32 *p = &per_cpu(cpu_data, 0);
++ current_thread_info()->cpu = 0;
++ p->tid = thread_get_self();
++}
++
++/*
++ * setup_profiling_timer()
++ * Dummy function created to keep Oprofile happy in the SMP case.
++ */
++int setup_profiling_timer(unsigned int multiplier)
++{
++ return 0;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/stacktrace.c
+@@ -0,0 +1,243 @@
++/*
++ * arch/ubicom32/kernel/stacktrace.c
++ * Ubicom32 architecture stack back trace implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/sched.h>
++#include <linux/stacktrace.h>
++#include <linux/module.h>
++#include <asm/stacktrace.h>
++#include <asm/thread.h>
++
++/*
++ * These symbols are filled in by the linker.
++ */
++extern unsigned long _stext;
++extern unsigned long _etext;
++
++extern unsigned long __ocm_text_run_begin;
++extern unsigned long __data_begin;
++
++/*
++ * stacktrace_iterate()
++ * Walk the stack looking for call and calli instructions on an aligned
++ * boundary.
++ *
++ * Trace must point to the top of the current stack frame.
++ */
++unsigned long stacktrace_iterate(unsigned long **trace,
++ unsigned long stext,
++ unsigned long etext,
++ unsigned long ocm_stext,
++ unsigned long ocm_etext,
++ unsigned long sstack,
++ unsigned long estack)
++{
++ unsigned int thread_trap_en, instruction;
++ unsigned long address;
++ unsigned int limit = 0;
++ unsigned long result = 0;
++ unsigned long *sp = *trace;
++
++ /*
++ * Exclude the current thread from being monitored for traps.
++ */
++ asm volatile(
++ " thread_get_self_mask d15 \n\t"
++ /* save current trap status */
++ " and.4 %0, MT_TRAP_EN, d15 \n\t"
++ " not.4 d15, d15 \n\t"
++ /* disable trap */
++ " and.4 MT_TRAP_EN, MT_TRAP_EN, d15 \n\t"
++ " pipe_flush 0 \n\t"
++ : "=r" (thread_trap_en)
++ :
++ : "d15", "cc"
++ );
++
++ while (limit++ < 256) {
++ /*
++ * See if we have a valid stack.
++ */
++ if (!between((unsigned long)sp, sstack, estack)) {
++#ifdef TRAP_DEBUG_STACK_TRACE
++ printk(KERN_EMERG "stack address is out of range - "
++ "sp: %x, sstack: %x, estack: %x\n",
++ (unsigned int)sp, (unsigned int)sstack,
++ (unsigned int)estack);
++#endif
++ result = 0;
++ *trace = 0;
++ break;
++ }
++
++ /*
++ * Get the value off the stack and back up 4 bytes to what
++ * should be the address of a call or calli.
++ */
++ address = (*sp++) - 4;
++
++ /*
++ * If the address is not within the text segment, skip this
++ * value.
++ */
++ if (!between(address, stext, etext) &&
++ !between(address, ocm_stext, ocm_etext)) {
++#ifdef TRAP_DEBUG_STACK_TRACE
++ printk(KERN_EMERG "not a text address - "
++ "address: %08x, stext: %08x, etext: %08x\n"
++ "ocm_stext: %08x, ocm_etext: %08x\n",
++ (unsigned int)address,
++ (unsigned int)stext,
++ (unsigned int)etext,
++ (unsigned int)ocm_stext,
++ (unsigned int)ocm_etext);
++#endif
++ continue;
++
++ }
++
++ /*
++ * If the address is not on an aligned boundary it can not be a
++ * return address.
++ */
++ if (address & 0x3) {
++ continue;
++ }
++
++ /*
++ * Read the probable instruction.
++ */
++ instruction = *(unsigned int *)address;
++
++ /*
++ * Is this a call instruction?
++ */
++ if ((instruction & 0xF8000000) == (u32_t)(0x1B << 27)) {
++#ifdef TRAP_DEBUG_STACK_TRACE
++ printk(KERN_EMERG "call inst. result: %x, "
++ "test: %x\n", (unsigned int)address,
++ (unsigned int)instruction);
++#endif
++ *trace = sp;
++ result = address;
++ break;
++ }
++
++ /*
++ * Is this a calli instruction?
++ */
++ if ((instruction & 0xF8000000) == (u32_t)(0x1E << 27)) {
++#ifdef TRAP_DEBUG_STACK_TRACE
++ printk(KERN_EMERG "calli inst. result: %x, "
++ "test: %x\n", (unsigned int)address,
++ (unsigned int)instruction);
++#endif
++ *trace = sp;
++ result = address;
++ break;
++ }
++ }
++
++ /*
++ * Restore the current thread to be monitored for traps.
++ */
++ if (thread_trap_en) {
++ asm volatile(
++ " thread_get_self_mask d15 \n\t"
++ " or.4 MT_TRAP_EN, MT_TRAP_EN, d15 \n\t"
++ :
++ :
++ : "d15", "cc"
++ );
++ }
++ return result;
++}
++
++#ifdef CONFIG_STACKTRACE
++/*
++ * stacktrace_save_entries()
++ * Save stack back trace information into the provided trace structure.
++ */
++void stacktrace_save_entries(struct task_struct *tsk,
++ struct stack_trace *trace,
++ unsigned long sp)
++{
++ unsigned long code_start = (unsigned long)&_stext;
++ unsigned long code_end = (unsigned long)&_etext;
++ unsigned long ocm_code_start = (unsigned long)&__ocm_text_run_begin;
++ unsigned long ocm_code_end = (unsigned long)&__data_begin;
++ unsigned long stack_end = (unsigned long)(tsk->stack + THREAD_SIZE - 8);
++ unsigned long stack = (unsigned long)sp;
++ unsigned int idx = 0;
++ unsigned long *handle;
++ int skip = trace->skip;
++
++ handle = (unsigned long *)stack;
++ while (idx < trace->max_entries) {
++ if (skip) {
++ skip--;
++ continue;
++ }
++ trace->entries[idx] = stacktrace_iterate(&handle,
++ code_start, code_end,
++ ocm_code_start, ocm_code_end,
++ (unsigned long)stack, stack_end);
++ if (trace->entries[idx] == 0) {
++ break;
++ }
++ idx++;
++ }
++}
++
++/*
++ * save_stack_trace()
++ * Save the specified amount of the kernel stack trace information
++ * for the current task.
++ */
++void save_stack_trace(struct stack_trace *trace)
++{
++ unsigned long sp = 0;
++ asm volatile (
++ " move.4 %0, SP \n\t"
++ : "=r" (sp)
++ );
++ stacktrace_save_entries(current, trace, sp);
++}
++EXPORT_SYMBOL_GPL(save_stack_trace);
++
++/*
++ * save_stack_trace_tsk()
++ * Save the specified amount of the kernel stack trace information
++ * for the specified task.
++ *
++ * Note: We assume the specified task is not currently running.
++ */
++void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
++{
++ stacktrace_save_entries(tsk, trace, tsk->thread.sp);
++}
++EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
++#endif /* CONFIG_STACKTRACE */
+--- /dev/null
++++ b/arch/ubicom32/kernel/syscalltable.S
+@@ -0,0 +1,377 @@
++/*
++ * arch/ubicom32/kernel/syscalltable.S
++ * <TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++/*
++ *
++ * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com)
++ * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, Kenneth Albanowski <kjahds@kjahds.com>,
++ * Copyright (C) 2000 Lineo Inc. (www.lineo.com)
++ * Copyright (C) 1991, 1992 Linus Torvalds
++ */
++
++#include <linux/sys.h>
++#include <linux/linkage.h>
++#include <asm/unistd.h>
++
++.text
++ALIGN
++ .global sys_call_table
++sys_call_table:
++ .long sys_ni_syscall /* 0 - old "setup()" system call*/
++ .long sys_exit
++ .long sys_fork
++ .long sys_read
++ .long sys_write
++ .long sys_open /* 5 */
++ .long sys_close
++ .long sys_waitpid
++ .long sys_creat
++ .long sys_link
++ .long sys_unlink /* 10 */
++ .long execve_intercept
++ .long sys_chdir
++ .long sys_time
++ .long sys_mknod
++ .long sys_chmod /* 15 */
++ .long sys_chown16
++ .long sys_ni_syscall /* old break syscall holder */
++ .long sys_stat
++ .long sys_lseek
++ .long sys_getpid /* 20 */
++ .long sys_mount
++ .long sys_oldumount
++ .long sys_setuid16
++ .long sys_getuid16
++ .long sys_stime /* 25 */
++ .long sys_ptrace
++ .long sys_alarm
++ .long sys_fstat
++ .long sys_pause
++ .long sys_utime /* 30 */
++ .long sys_ni_syscall /* old stty syscall holder */
++ .long sys_ni_syscall /* old gtty syscall holder */
++ .long sys_access
++ .long sys_nice
++ .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */
++ .long sys_sync
++ .long sys_kill
++ .long sys_rename
++ .long sys_mkdir
++ .long sys_rmdir /* 40 */
++ .long sys_dup
++ .long sys_pipe
++ .long sys_times
++ .long sys_ni_syscall /* old prof syscall holder */
++ .long sys_brk /* 45 */
++ .long sys_setgid16
++ .long sys_getgid16
++ .long sys_signal
++ .long sys_geteuid16
++ .long sys_getegid16 /* 50 */
++ .long sys_acct
++ .long sys_umount /* recycled never used phys() */
++ .long sys_ni_syscall /* old lock syscall holder */
++ .long sys_ioctl
++ .long sys_fcntl /* 55 */
++ .long sys_ni_syscall /* old mpx syscall holder */
++ .long sys_setpgid
++ .long sys_ni_syscall /* old ulimit syscall holder */
++ .long sys_ni_syscall
++ .long sys_umask /* 60 */
++ .long sys_chroot
++ .long sys_ustat
++ .long sys_dup2
++ .long sys_getppid
++ .long sys_getpgrp /* 65 */
++ .long sys_setsid
++ .long sys_sigaction
++ .long sys_sgetmask
++ .long sys_ssetmask
++ .long sys_setreuid16 /* 70 */
++ .long sys_setregid16
++ .long sys_sigsuspend
++ .long sys_sigpending
++ .long sys_sethostname
++ .long sys_setrlimit /* 75 */
++ .long sys_old_getrlimit
++ .long sys_getrusage
++ .long sys_gettimeofday
++ .long sys_settimeofday
++ .long sys_getgroups16 /* 80 */
++ .long sys_setgroups16
++ .long old_select
++ .long sys_symlink
++ .long sys_lstat
++ .long sys_readlink /* 85 */
++ .long sys_uselib
++ .long sys_ni_syscall /* _sys_swapon */
++ .long sys_reboot
++ .long sys_old_readdir
++ .long old_mmap /* 90 */
++ .long sys_munmap
++ .long sys_truncate
++ .long sys_ftruncate
++ .long sys_fchmod
++ .long sys_fchown16 /* 95 */
++ .long sys_getpriority
++ .long sys_setpriority
++ .long sys_ni_syscall /* old profil syscall holder */
++ .long sys_statfs
++ .long sys_fstatfs /* 100 */
++ .long sys_ni_syscall /* ioperm for i386 */
++ .long sys_socketcall
++ .long sys_syslog
++ .long sys_setitimer
++ .long sys_getitimer /* 105 */
++ .long sys_newstat
++ .long sys_newlstat
++ .long sys_newfstat
++ .long sys_ni_syscall
++ .long sys_ni_syscall /* iopl for i386 */ /* 110 */
++ .long sys_vhangup
++ .long sys_ni_syscall /* obsolete idle() syscall */
++ .long sys_ni_syscall /* vm86old for i386 */
++ .long sys_wait4
++ .long sys_ni_syscall /* 115 */ /* _sys_swapoff */
++ .long sys_sysinfo
++ .long sys_ipc
++ .long sys_fsync
++ .long sys_sigreturn
++ .long clone_intercept /* 120 */
++ .long sys_setdomainname
++ .long sys_newuname
++ .long sys_cacheflush /* modify_ldt for i386 */
++ .long sys_adjtimex
++ .long sys_ni_syscall /* 125 */ /* _sys_mprotect */
++ .long sys_sigprocmask
++ .long sys_ni_syscall /* old "creat_module" */
++ .long sys_init_module
++ .long sys_delete_module
++ .long sys_ni_syscall /* 130: old "get_kernel_syms" */
++ .long sys_quotactl
++ .long sys_getpgid
++ .long sys_fchdir
++ .long sys_bdflush
++ .long sys_sysfs /* 135 */
++ .long sys_personality
++ .long sys_ni_syscall /* for afs_syscall */
++ .long sys_setfsuid16
++ .long sys_setfsgid16
++ .long sys_llseek /* 140 */
++ .long sys_getdents
++ .long sys_select
++ .long sys_flock
++ .long sys_ni_syscall /* _sys_msync */
++ .long sys_readv /* 145 */
++ .long sys_writev
++ .long sys_getsid
++ .long sys_fdatasync
++ .long sys_sysctl
++ .long sys_ni_syscall /* 150 */ /* _sys_mlock */
++ .long sys_ni_syscall /* _sys_munlock */
++ .long sys_ni_syscall /* _sys_mlockall */
++ .long sys_ni_syscall /* _sys_munlockall */
++ .long sys_sched_setparam
++ .long sys_sched_getparam /* 155 */
++ .long sys_sched_setscheduler
++ .long sys_sched_getscheduler
++ .long sys_sched_yield
++ .long sys_sched_get_priority_max
++ .long sys_sched_get_priority_min /* 160 */
++ .long sys_sched_rr_get_interval
++ .long sys_nanosleep
++ .long sys_ni_syscall /* _sys_mremap */
++ .long sys_setresuid16
++ .long sys_getresuid16 /* 165 */
++ .long sys_getpagesize /* _sys_getpagesize */
++ .long sys_ni_syscall /* old "query_module" */
++ .long sys_poll
++ .long sys_ni_syscall /* _sys_nfsservctl */
++ .long sys_setresgid16 /* 170 */
++ .long sys_getresgid16
++ .long sys_prctl
++ .long sys_rt_sigreturn
++ .long sys_rt_sigaction
++ .long sys_rt_sigprocmask /* 175 */
++ .long sys_rt_sigpending
++ .long sys_rt_sigtimedwait
++ .long sys_rt_sigqueueinfo
++ .long sys_rt_sigsuspend
++ .long sys_pread64 /* 180 */
++ .long sys_pwrite64
++ .long sys_lchown16
++ .long sys_getcwd
++ .long sys_capget
++ .long sys_capset /* 185 */
++ .long sys_sigaltstack
++ .long sys_sendfile
++ .long sys_ni_syscall /* streams1 */
++ .long sys_ni_syscall /* streams2 */
++ .long vfork_intercept /* 190 */
++ .long sys_getrlimit
++ .long sys_mmap2
++ .long sys_truncate64
++ .long sys_ftruncate64
++ .long sys_stat64 /* 195 */
++ .long sys_lstat64
++ .long sys_fstat64
++ .long sys_chown
++ .long sys_getuid
++ .long sys_getgid /* 200 */
++ .long sys_geteuid
++ .long sys_getegid
++ .long sys_setreuid
++ .long sys_setregid
++ .long sys_getgroups /* 205 */
++ .long sys_setgroups
++ .long sys_fchown
++ .long sys_setresuid
++ .long sys_getresuid
++ .long sys_setresgid /* 210 */
++ .long sys_getresgid
++ .long sys_lchown
++ .long sys_setuid
++ .long sys_setgid
++ .long sys_setfsuid /* 215 */
++ .long sys_setfsgid
++ .long sys_pivot_root
++ .long sys_ni_syscall
++ .long sys_ni_syscall
++ .long sys_getdents64 /* 220 */
++ .long sys_gettid
++ .long sys_tkill
++ .long sys_setxattr
++ .long sys_lsetxattr
++ .long sys_fsetxattr /* 225 */
++ .long sys_getxattr
++ .long sys_lgetxattr
++ .long sys_fgetxattr
++ .long sys_listxattr
++ .long sys_llistxattr /* 230 */
++ .long sys_flistxattr
++ .long sys_removexattr
++ .long sys_lremovexattr
++ .long sys_fremovexattr
++ .long sys_futex /* 235 */
++ .long sys_sendfile64
++ .long sys_ni_syscall /* _sys_mincore */
++ .long sys_ni_syscall /* _sys_madvise */
++ .long sys_fcntl64
++ .long sys_readahead /* 240 */
++ .long sys_io_setup
++ .long sys_io_destroy
++ .long sys_io_getevents
++ .long sys_io_submit
++ .long sys_io_cancel /* 245 */
++ .long sys_fadvise64
++ .long sys_exit_group
++ .long sys_lookup_dcookie
++ .long sys_epoll_create
++ .long sys_epoll_ctl /* 250 */
++ .long sys_epoll_wait
++ .long sys_ni_syscall /* _sys_remap_file_pages */
++ .long sys_set_tid_address
++ .long sys_timer_create
++ .long sys_timer_settime /* 255 */
++ .long sys_timer_gettime
++ .long sys_timer_getoverrun
++ .long sys_timer_delete
++ .long sys_clock_settime
++ .long sys_clock_gettime /* 260 */
++ .long sys_clock_getres
++ .long sys_clock_nanosleep
++ .long sys_statfs64
++ .long sys_fstatfs64
++ .long sys_tgkill /* 265 */
++ .long sys_utimes
++ .long sys_fadvise64_64
++ .long sys_mbind
++ .long sys_get_mempolicy
++ .long sys_set_mempolicy /* 270 */
++ .long sys_mq_open
++ .long sys_mq_unlink
++ .long sys_mq_timedsend
++ .long sys_mq_timedreceive
++ .long sys_mq_notify /* 275 */
++ .long sys_mq_getsetattr
++ .long sys_waitid
++ .long sys_ni_syscall /* for _sys_vserver */
++ .long sys_add_key
++ .long sys_request_key /* 280 */
++ .long sys_keyctl
++ .long sys_ioprio_set
++ .long sys_ioprio_get
++ .long sys_inotify_init
++ .long sys_inotify_add_watch /* 285 */
++ .long sys_inotify_rm_watch
++ .long sys_migrate_pages
++ .long sys_openat
++ .long sys_mkdirat
++ .long sys_mknodat /* 290 */
++ .long sys_fchownat
++ .long sys_futimesat
++ .long sys_fstatat64
++ .long sys_unlinkat
++ .long sys_renameat /* 295 */
++ .long sys_linkat
++ .long sys_symlinkat
++ .long sys_readlinkat
++ .long sys_fchmodat
++ .long sys_faccessat /* 300 */
++ .long sys_ni_syscall /* Reserved for pselect6 */
++ .long sys_ni_syscall /* Reserved for ppoll */
++ .long sys_unshare
++ .long sys_set_robust_list
++ .long sys_get_robust_list /* 305 */
++ .long sys_splice
++ .long sys_sync_file_range
++ .long sys_tee
++ .long sys_vmsplice
++ .long sys_move_pages /* 310 */
++ .long sys_sched_setaffinity
++ .long sys_sched_getaffinity
++ .long sys_kexec_load
++ .long sys_getcpu
++ .long sys_epoll_pwait /* 315 */
++ .long sys_utimensat
++ .long sys_signalfd
++ .long sys_timerfd_create
++ .long sys_eventfd
++ .long sys_fallocate /* 320 */
++ .long sys_timerfd_settime
++ .long sys_timerfd_gettime
++ .long sys_ni_syscall /* sys_signalfd4 */
++ .long sys_ni_syscall /* sys_eventfd2 */
++ .long sys_ni_syscall /* sys_epoll_create1 */
++ /* 325 */
++ .long sys_ni_syscall /* sys_dup3 */
++ .long sys_ni_syscall /* sys_pipe2 */
++ .long sys_ni_syscall /* sys_inotify_init1 */
++ .rept NR_syscalls-(.-sys_call_table)/4
++ .long sys_ni_syscall
++ .endr
++
+--- /dev/null
++++ b/arch/ubicom32/kernel/sys_ubicom32.c
+@@ -0,0 +1,237 @@
++/*
++ * arch/ubicom32/kernel/sys_ubicom32.c
++ * Ubicom32 architecture system call support implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ *
++ * This file contains various random system calls that
++ * have a non-standard calling sequence on the Linux/ubicom32
++ * platform.
++ */
++
++#include <linux/module.h>
++#include <linux/errno.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/smp.h>
++#include <linux/sem.h>
++#include <linux/msg.h>
++#include <linux/shm.h>
++#include <linux/stat.h>
++#include <linux/syscalls.h>
++#include <linux/mman.h>
++#include <linux/file.h>
++#include <linux/utsname.h>
++#include <linux/ipc.h>
++#include <linux/fs.h>
++#include <linux/uaccess.h>
++#include <linux/unistd.h>
++
++#include <asm/setup.h>
++#include <asm/traps.h>
++#include <asm/cacheflush.h>
++
++/* common code for old and new mmaps */
++static inline long do_mmap2(
++ unsigned long addr, unsigned long len,
++ unsigned long prot, unsigned long flags,
++ unsigned long fd, unsigned long pgoff)
++{
++ int error = -EBADF;
++ struct file *file = NULL;
++
++ flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
++ if (!(flags & MAP_ANONYMOUS)) {
++ file = fget(fd);
++ if (!file)
++ goto out;
++ }
++
++ down_write(¤t->mm->mmap_sem);
++ error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
++ up_write(¤t->mm->mmap_sem);
++
++ if (file)
++ fput(file);
++out:
++ return error;
++}
++
++asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
++ unsigned long prot, unsigned long flags,
++ unsigned long fd, unsigned long pgoff)
++{
++ return do_mmap2(addr, len, prot, flags, fd, pgoff);
++}
++
++/*
++ * Perform the select(nd, in, out, ex, tv) and mmap() system
++ * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to
++ * handle more than 4 system call parameters, so these system calls
++ * used a memory block for parameter passing..
++ */
++
++struct mmap_arg_struct {
++ unsigned long addr;
++ unsigned long len;
++ unsigned long prot;
++ unsigned long flags;
++ unsigned long fd;
++ unsigned long offset;
++};
++
++asmlinkage int old_mmap(struct mmap_arg_struct *arg)
++{
++ struct mmap_arg_struct a;
++ int error = -EFAULT;
++
++ if (copy_from_user(&a, arg, sizeof(a)))
++ goto out;
++
++ error = -EINVAL;
++ if (a.offset & ~PAGE_MASK)
++ goto out;
++
++ a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
++
++ error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd,
++ a.offset >> PAGE_SHIFT);
++out:
++ return error;
++}
++
++struct sel_arg_struct {
++ unsigned long n;
++ fd_set *inp, *outp, *exp;
++ struct timeval *tvp;
++};
++
++asmlinkage int old_select(struct sel_arg_struct *arg)
++{
++ struct sel_arg_struct a;
++
++ if (copy_from_user(&a, arg, sizeof(a)))
++ return -EFAULT;
++ /* sys_select() does the appropriate kernel locking */
++ return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
++}
++
++/*
++ * sys_ipc() is the de-multiplexer for the SysV IPC calls..
++ *
++ * This is really horribly ugly.
++ */
++asmlinkage int sys_ipc(uint call, int first, int second,
++ int third, void *ptr, long fifth)
++{
++ int version, ret;
++
++ version = call >> 16; /* hack for backward compatibility */
++ call &= 0xffff;
++
++ if (call <= SEMCTL)
++ switch (call) {
++ case SEMOP:
++ return sys_semop(first, (struct sembuf *)ptr, second);
++ case SEMGET:
++ return sys_semget(first, second, third);
++ case SEMCTL: {
++ union semun fourth;
++ if (!ptr)
++ return -EINVAL;
++ if (get_user(fourth.__pad, (void **) ptr))
++ return -EFAULT;
++ return sys_semctl(first, second, third, fourth);
++ }
++ default:
++ return -EINVAL;
++ }
++ if (call <= MSGCTL)
++ switch (call) {
++ case MSGSND:
++ return sys_msgsnd(first, (struct msgbuf *) ptr,
++ second, third);
++ case MSGRCV:
++ switch (version) {
++ case 0: {
++ struct ipc_kludge tmp;
++ if (!ptr)
++ return -EINVAL;
++ if (copy_from_user(&tmp,
++ (struct ipc_kludge *)ptr,
++ sizeof(tmp)))
++ return -EFAULT;
++ return sys_msgrcv(first, tmp.msgp, second,
++ tmp.msgtyp, third);
++ }
++ default:
++ return sys_msgrcv(first,
++ (struct msgbuf *) ptr,
++ second, fifth, third);
++ }
++ case MSGGET:
++ return sys_msgget((key_t) first, second);
++ case MSGCTL:
++ return sys_msgctl(first, second,
++ (struct msqid_ds *) ptr);
++ default:
++ return -EINVAL;
++ }
++ if (call <= SHMCTL)
++ switch (call) {
++ case SHMAT:
++ switch (version) {
++ default: {
++ ulong raddr;
++ ret = do_shmat(first, ptr, second, &raddr);
++ if (ret)
++ return ret;
++ return put_user(raddr, (ulong __user *) third);
++ }
++ }
++ case SHMDT:
++ return sys_shmdt(ptr);
++ case SHMGET:
++ return sys_shmget(first, second, third);
++ case SHMCTL:
++ return sys_shmctl(first, second, ptr);
++ default:
++ return -ENOSYS;
++ }
++
++ return -EINVAL;
++}
++
++/* sys_cacheflush -- flush (part of) the processor cache. */
++asmlinkage int
++sys_cacheflush(unsigned long addr, int scope, int cache, unsigned long len)
++{
++ flush_cache_all();
++ return 0;
++}
++
++asmlinkage int sys_getpagesize(void)
++{
++ return PAGE_SIZE;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/thread.c
+@@ -0,0 +1,228 @@
++/*
++ * arch/ubicom32/kernel/thread.c
++ * Ubicom32 architecture hardware thread support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/sched.h>
++#include <linux/interrupt.h>
++#include <linux/irq.h>
++#include <linux/profile.h>
++#include <linux/clocksource.h>
++#include <linux/types.h>
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++#include <asm/asm-offsets.h>
++#include <asm/thread.h>
++
++/*
++ * TODO: At some point change the name here to be thread_ksp
++ */
++unsigned int sw_ksp[THREAD_ARCHITECTURAL_MAX];
++
++static unsigned int thread_mask = -1;
++static unsigned int thread_mainline_mask;
++
++/*
++ * thread_entry()
++ * Returning from the called function will disable the thread.
++ *
++ * This could be a naked call to allow for hwthreads that do not have stacks.
++ * However, with -O0, the code still writes to thex stack, and this was
++ * corrupting memory just after the callers stack.
++ */
++static void thread_entry(void *arg, thread_exec_fn_t exec)
++{
++ /*
++ * Call thread function
++ */
++ exec(arg);
++
++ /*
++ * Complete => Disable self
++ */
++ thread_disable(thread_get_self());
++}
++
++/*
++ * thread_start()
++ * Start the specified function on the specified hardware thread.
++ */
++thread_t thread_start(thread_t thread,
++ thread_exec_fn_t exec,
++ void *arg,
++ unsigned int *sp_high,
++ thread_type_t type)
++{
++ /*
++ * Sanity check
++ */
++ unsigned int enabled, mask, csr;
++ asm volatile (
++ "move.4 %0, MT_EN\n\t"
++ : "=m" (enabled)
++ );
++
++ mask = 1 << thread;
++ if (enabled & mask) {
++ printk(KERN_WARNING "request to enable a previously enabled thread\n");
++ return (thread_t)-1;
++ }
++
++ /*
++ * Update thread state
++ */
++ csr = (thread << 15) | (1 << 14);
++ asm volatile (
++ "setcsr %0 \n\t"
++ "setcsr_flush 0 \n\t"
++
++ "move.4 A0, #0 \n\t"
++ "move.4 A1, #0 \n\t"
++ "move.4 A2, #0 \n\t"
++ "move.4 A3, #0 \n\t"
++ "move.4 A4, #0 \n\t"
++ "move.4 A5, #0 \n\t"
++ "move.4 A6, #0 \n\t"
++ "move.4 SP, %4 \n\t" /* A7 is SP */
++
++ "move.4 D0, %3 \n\t"
++ "move.4 D1, %2 \n\t"
++ "move.4 D2, #0 \n\t"
++ "move.4 D3, #0 \n\t"
++ "move.4 D4, #0 \n\t"
++ "move.4 D5, #0 \n\t"
++ "move.4 D6, #0 \n\t"
++ "move.4 D7, #0 \n\t"
++ "move.4 D8, #0 \n\t"
++ "move.4 D9, #0 \n\t"
++ "move.4 D10, #0 \n\t"
++ "move.4 D11, #0 \n\t"
++ "move.4 D12, #0 \n\t"
++ "move.4 D13, #0 \n\t"
++ "move.4 D14, #0 \n\t"
++ "move.4 D15, #0 \n\t"
++
++ "move.4 INT_MASK0, #0 \n\t"
++ "move.4 INT_MASK1, #0 \n\t"
++ "move.4 PC, %1 \n\t"
++ "setcsr #0 \n\t"
++ "setcsr_flush 0 \n\t"
++ :
++ : "r" (csr), "r" (thread_entry), "r" (exec),
++ "r" (arg), "r" (sp_high)
++ );
++
++ /*
++ * Apply HRT state
++ */
++ if (type & THREAD_TYPE_HRT) {
++ asm volatile (
++ "or.4 MT_HRT, MT_HRT, %0\n\t"
++ :
++ : "d" (mask)
++ : "cc"
++ );
++ } else {
++ asm volatile (
++ "and.4 MT_HRT, MT_HRT, %0\n\t"
++ :
++ : "d" (~mask)
++ : "cc"
++ );
++ }
++
++ /*
++ * Set priority
++ */
++ asm volatile (
++ "or.4 MT_HPRI, MT_HPRI, %0\n\t"
++ :
++ : "d" (mask)
++ : "cc"
++ );
++
++ /*
++ * Enable thread
++ */
++ asm volatile (
++ "move.4 MT_ACTIVE_SET, %0 \n\t"
++ :
++ : "d" (mask)
++ );
++ thread_enable_mask(mask);
++ return thread;
++}
++
++/*
++ * thread_get_mainline()
++ * Return a mask of those threads that are Linux mainline threads.
++ */
++unsigned int thread_get_mainline(void)
++{
++ return thread_mainline_mask;
++}
++
++/*
++ * thread_set_mainline()
++ * Indicate that the specified thread is a Linux mainline thread.
++ */
++void thread_set_mainline(thread_t tid)
++{
++ thread_mainline_mask |= (1 << tid);
++}
++
++/*
++ * thread_alloc()
++ * Allocate an unused hardware thread.
++ */
++thread_t thread_alloc(void)
++{
++ thread_t tid;
++
++ /*
++ * If this is the first time we are here get the list of unused
++ * threads from the processor device tree node.
++ */
++ if (thread_mask == -1) {
++ thread_mask = processor_threads();
++ }
++
++ if (!thread_mask) {
++ return (thread_t)-1;
++ }
++
++ tid = ffs(thread_mask);
++ if (tid != 0) {
++ tid--;
++ thread_mask &= ~(1 << tid);
++ return tid;
++ }
++
++ return (thread_t)-1;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/time.c
+@@ -0,0 +1,212 @@
++/*
++ * arch/ubicom32/kernel/time.c
++ * Initialize the timer list and start the appropriate timers.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1991, 1992, 1995 Linus Torvalds
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/profile.h>
++#include <linux/smp.h>
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++
++/*
++ * A bitmap of the timers on the processor indicates
++ * that the timer is free or in-use.
++ */
++static unsigned int timers;
++
++/*
++ * timer_set()
++ * Init the specified compare register to go off <n> cycles from now.
++ */
++void timer_set(int timervector, unsigned int cycles)
++{
++ int idx = UBICOM32_VECTOR_TO_TIMER_INDEX(timervector);
++ UBICOM32_IO_TIMER->syscom[idx] =
++ UBICOM32_IO_TIMER->sysval + cycles;
++ ldsr_enable_vector(timervector);
++}
++
++/*
++ * timer_reset()
++ * Set/reset the timer to go off again.
++ *
++ * Because sysval is a continuous timer, this function is able
++ * to ensure that we do not have clock sku by using the previous
++ * value in syscom to set the next value for syscom.
++ *
++ * Returns the number of ticks that transpired since the last event.
++ */
++int timer_reset(int timervector, unsigned int cycles)
++{
++ /*
++ * Reset the timer in the LDSR thread to go off appropriately.
++ *
++ * Use the previous value of the timer to calculate the new stop
++ * time. This allows us to account for it taking an
++ * indeterminate amount of time to get here.
++ */
++ const int timer_index = UBICOM32_VECTOR_TO_TIMER_INDEX(timervector);
++ unsigned int prev = UBICOM32_IO_TIMER->syscom[timer_index];
++ unsigned int next = prev + cycles;
++ int scratchpad3;
++ int diff;
++ int ticks = 1;
++
++ /*
++ * If the difference is negative, we have missed at least one
++ * timer tick.
++ *
++ * TODO: Decide if we want to "ignore" time (as done below) or
++ * if we want to process time (unevenly) by calling timer_tick()
++ * lost_ticks times.
++ */
++ while (1) {
++ /*
++ * Set our future time first.
++ */
++ UBICOM32_IO_TIMER->syscom[timer_index] = next;
++
++ /*
++ * Then check if we are really set time in the futrue.
++ */
++ diff = (int)next - (int)UBICOM32_IO_TIMER->sysval;
++ if (diff >= 0) {
++ break;
++ }
++
++ /*
++ * Oops, we are too slow. Playing catch up.
++ *
++ * If the debugger is connected the there is a good
++ * chance that we lost time because we were in a
++ * break-point, so in this case we do not print out
++ * diagnostics.
++ */
++ asm volatile ("move.4 %0, scratchpad3"
++ : "=r" (scratchpad3));
++ if ((scratchpad3 & 0x1) == 0) {
++ /*
++ * No debugger attached, print to the console
++ */
++ printk(KERN_EMERG "diff: %d, timer has lost %u "
++ "ticks [rounded up]\n",
++ -diff,
++ (unsigned int)((-diff + cycles - 1) / cycles));
++ }
++
++ do {
++ next += cycles;
++ diff = (int)next - (int)UBICOM32_IO_TIMER->sysval;
++ ticks++;
++ } while (diff < 0);
++ }
++ return ticks;
++}
++
++/*
++ * sched_clock()
++ * Returns current time in nano-second units.
++ *
++ * Notes:
++ * 1) This is an override for the weak alias in
++ * kernel/sched_clock.c.
++ * 2) Do not use xtime_lock as this function is
++ * sometimes called with xtime_lock held.
++ * 3) We use a retry algorithm to ensure that
++ * we get a consistent value.
++ * 4) sched_clock must be overwritten if IRQ tracing
++ * is enabled because the default implementation uses
++ * the xtime_lock sequence while holding xtime_lock.
++ */
++unsigned long long sched_clock(void)
++{
++ unsigned long long my_jiffies;
++ unsigned long jiffies_top;
++ unsigned long jiffies_bottom;
++
++ do {
++ jiffies_top = jiffies_64 >> 32;
++ jiffies_bottom = jiffies_64 & 0xffffffff;
++ } while (unlikely(jiffies_top != (unsigned long)(jiffies_64 >> 32)));
++
++ my_jiffies = ((unsigned long long)jiffies_top << 32) | (jiffies_bottom);
++ return (my_jiffies - INITIAL_JIFFIES) * (NSEC_PER_SEC / HZ);
++}
++
++/*
++ * timer_free()
++ * Free a hardware timer.
++ */
++void timer_free(int interrupt)
++{
++ unsigned int bit = interrupt - TIMER_INT(0);
++
++ /*
++ * The timer had not been allocated.
++ */
++ BUG_ON(timers & (1 << bit));
++ timers |= (1 << bit);
++}
++
++/*
++ * timer_alloc()
++ * Allocate a hardware timer.
++ */
++int timer_alloc(void)
++{
++ unsigned int bit = find_first_bit((unsigned long *)&timers, 32);
++ if (!bit) {
++ printk(KERN_WARNING "no more free timers\n");
++ return -1;
++ }
++
++ timers &= ~(1 << bit);
++ return bit + TIMER_INT(0);
++}
++
++/*
++ * time_init()
++ * Time init function.
++ */
++void time_init(void)
++{
++ /*
++ * Find the processor node and determine what timers are
++ * available for us.
++ */
++ timers = processor_timers();
++ if (timers == 0) {
++ printk(KERN_WARNING "no timers are available for Linux\n");
++ return;
++ }
++
++#ifdef CONFIG_GENERIC_CLOCKEVENTS
++ timer_device_init();
++#else
++ timer_tick_init();
++#endif
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/timer_broadcast.c
+@@ -0,0 +1,102 @@
++/*
++ * arch/ubicom32/kernel/timer_broadcast.c
++ * Implements a dummy clock event for each cpu.
++ *
++ * Copyright (C) 2008 Paul Mundt
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ * arch/arm
++ * arch/sh
++ */
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/delay.h>
++#include <linux/device.h>
++#include <linux/smp.h>
++#include <linux/jiffies.h>
++#include <linux/percpu.h>
++#include <linux/clockchips.h>
++#include <linux/irq.h>
++
++static DEFINE_PER_CPU(struct clock_event_device, local_clockevent);
++
++/*
++ * The broadcast trick only works when the timer will be used in a periodic mode.
++ * If the user has configured either NO_HZ or HIGH_RES_TIMERS they must have
++ * a per cpu timer.
++ */
++#if defined(CONFIG_NO_HZ) || defined(CONFIG_HIGH_RES_TIMERS)
++#error "Tickless and High Resolution Timers require per-CPU local timers: CONFIG_LOCAL_TIMERS"
++#endif
++
++/*
++ * local_timer_interrupt()
++ * Used on SMP for local timer interrupt sent via an IPI.
++ */
++void local_timer_interrupt(void)
++{
++ struct clock_event_device *dev = &__get_cpu_var(local_clockevent);
++
++ dev->event_handler(dev);
++}
++
++/*
++ * dummy_timer_set_next_event()
++ * Cause the timer to go off "cycles" from now.
++ */
++static int dummy_timer_set_next_event(unsigned long cycles, struct clock_event_device *dev)
++{
++ return 0;
++}
++
++/*
++ * dummy_timer_set_mode()
++ * Do Nothing.
++ */
++static void dummy_timer_set_mode(enum clock_event_mode mode,
++ struct clock_event_device *clk)
++{
++}
++
++/*
++ * local_timer_setup()
++ * Adds a clock event for the specified cpu.
++ */
++int __cpuinit local_timer_setup(unsigned int cpu)
++{
++ struct clock_event_device *dev = &per_cpu(local_clockevent, cpu);
++
++ dev->name = "timer-dummy";
++ dev->features = CLOCK_EVT_FEAT_DUMMY;
++ dev->rating = 200;
++ dev->mult = 1;
++ dev->set_mode = dummy_timer_set_mode;
++ dev->set_next_event = dummy_timer_set_next_event;
++ dev->broadcast = smp_timer_broadcast;
++ dev->cpumask = cpumask_of_cpu(cpu);
++ dev->irq = -1;
++ printk(KERN_NOTICE "timer[%d]: %s - created\n", dev->irq, dev->name);
++
++ clockevents_register_device(dev);
++ return 0;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/timer_device.c
+@@ -0,0 +1,302 @@
++/*
++ * arch/ubicom32/kernel/timer_device.c
++ * Implements a Ubicom32 clock device and event devices.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/types.h>
++#include <linux/clockchips.h>
++#include <linux/clocksource.h>
++#include <linux/spinlock.h>
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++
++#if defined(CONFIG_SMP)
++#include <asm/smp.h>
++#endif
++
++#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
++#define MAX_TIMERS (2 + CONFIG_TIMER_EXTRA_ALLOC)
++#else
++#define MAX_TIMERS (NR_CPUS + CONFIG_TIMER_EXTRA_ALLOC)
++#endif
++
++#if (MAX_TIMERS > 10)
++#error "Ubicom32 only has 10 timers"
++#endif
++
++static unsigned int frequency;
++static struct clock_event_device timer_device_devs[MAX_TIMERS];
++static struct irqaction timer_device_irqs[MAX_TIMERS];
++static int timer_device_next_timer = 0;
++
++DEFINE_SPINLOCK(timer_device_lock);
++
++/*
++ * timer_device_set_next_event()
++ * Cause the timer to go off "cycles" from now.
++ */
++static int timer_device_set_next_event(unsigned long cycles, struct clock_event_device *dev)
++{
++ timer_set(dev->irq, cycles);
++ return 0;
++}
++
++/*
++ * timer_device_set_mode()
++ * Handle the mode switch for a clock event device.
++ */
++static void timer_device_set_mode(enum clock_event_mode mode, struct clock_event_device *dev)
++{
++ switch (mode) {
++ case CLOCK_EVT_MODE_SHUTDOWN:
++ /*
++ * Make sure the vector is disabled
++ * until the next event is set.
++ */
++ printk(KERN_NOTICE "timer[%d]: shutdown\n", dev->irq);
++ ldsr_disable_vector(dev->irq);
++ break;
++
++ case CLOCK_EVT_MODE_ONESHOT:
++ /*
++ * Make sure the vector is disabled
++ * until the next event is set.
++ */
++ printk(KERN_NOTICE "timer[%d]: oneshot\n", dev->irq);
++ ldsr_disable_vector(dev->irq);
++ break;
++
++ case CLOCK_EVT_MODE_PERIODIC:
++ /*
++ * The periodic request is 1 per jiffies
++ */
++ printk(KERN_NOTICE "timer[%d]: periodic: %d cycles\n",
++ dev->irq, frequency / CONFIG_HZ);
++ timer_set(dev->irq, frequency / CONFIG_HZ);
++ break;
++
++ case CLOCK_EVT_MODE_UNUSED:
++ case CLOCK_EVT_MODE_RESUME:
++ printk(KERN_WARNING "timer[%d]: unimplemented mode: %d\n",
++ dev->irq, mode);
++ break;
++ };
++}
++
++/*
++ * timer_device_event()
++ * Call the device's event handler.
++ *
++ * The pointer is initialized by the generic Linux code
++ * to the function to be called.
++ */
++static irqreturn_t timer_device_event(int irq, void *dev_id)
++{
++ struct clock_event_device *dev = (struct clock_event_device *)dev_id;
++
++ if (dev->mode == CLOCK_EVT_MODE_PERIODIC) {
++ /*
++ * The periodic request is 1 per jiffies
++ */
++ timer_reset(dev->irq, frequency / CONFIG_HZ);
++ } else {
++ /*
++ * The timer will go off again at the rollover
++ * point. We must disable the IRQ to prevent
++ * getting a spurious interrupt.
++ */
++ ldsr_disable_vector(dev->irq);
++ }
++
++ if (!dev->event_handler) {
++ printk(KERN_CRIT "no registered event handler\n");
++ return IRQ_HANDLED;
++ }
++
++ dev->event_handler(dev);
++ return IRQ_HANDLED;
++}
++
++/*
++ * timer_device_clockbase_read()
++ * Provide a primary clocksource around the sysval timer.
++ */
++static cycle_t timer_device_clockbase_read(void)
++{
++ return (cycle_t)UBICOM32_IO_TIMER->sysval;
++}
++
++/*
++ * Primary Clock Source Description
++ *
++ * We use 24 for the shift factor because we want
++ * to ensure there are less than 2^24 clocks
++ * in a jiffie of 10 ms.
++ */
++static struct clocksource timer_device_clockbase = {
++ .name = "sysval",
++ .rating = 400,
++ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
++ .mask = CLOCKSOURCE_MASK(32),
++ .shift = 24,
++ .mult = 0,
++ .read = timer_device_clockbase_read,
++};
++
++/*
++ * timer_device_alloc_event()
++ * Allocate a timer device event.
++ */
++static int timer_device_alloc_event(const char *name, int cpuid, cpumask_t mask)
++{
++ struct clock_event_device *dev;
++ struct irqaction *action;
++
++ /*
++ * Are we out of configured timers?
++ */
++ spin_lock(&timer_device_lock);
++ if (timer_device_next_timer >= MAX_TIMERS) {
++ spin_unlock(&timer_device_lock);
++ printk(KERN_WARNING "out of timer event entries\n");
++ return -1;
++ }
++ dev = &timer_device_devs[timer_device_next_timer];
++ action = &timer_device_irqs[timer_device_next_timer];
++ timer_device_next_timer++;
++ spin_unlock(&timer_device_lock);
++
++ /*
++ * Now allocate a timer to ourselves.
++ */
++ dev->irq = timer_alloc();
++ if (dev->irq == -1) {
++ spin_lock(&timer_device_lock);
++ timer_device_next_timer--;
++ spin_unlock(&timer_device_lock);
++ printk(KERN_WARNING "out of hardware timers\n");
++ return -1;
++ }
++
++ /*
++ * Init the IRQ action structure. Make sure
++ * this in place before you register the clock
++ * event device.
++ */
++ action->name = name;
++ action->flags = IRQF_DISABLED | IRQF_TIMER;
++ action->handler = timer_device_event;
++ action->mask = mask;
++ action->dev_id = dev;
++ setup_irq(dev->irq, action);
++ irq_set_affinity(dev->irq, mask);
++ ldsr_disable_vector(dev->irq);
++
++ /*
++ * init clock dev structure.
++ *
++ * The min_delta_ns is chosen to ensure that setting next
++ * event will never be requested with too small of value.
++ */
++ dev->name = name;
++ dev->rating = timer_device_clockbase.rating;
++ dev->shift = timer_device_clockbase.shift;
++ dev->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
++ dev->set_mode = timer_device_set_mode;
++ dev->set_next_event = timer_device_set_next_event;
++ dev->mult = div_sc(frequency, NSEC_PER_SEC, dev->shift);
++ dev->max_delta_ns = clockevent_delta2ns(0xffffffff, dev);
++ dev->min_delta_ns = clockevent_delta2ns(100, dev);
++ dev->cpumask = mask;
++ printk(KERN_NOTICE "timer[%d]: %s - created\n", dev->irq, dev->name);
++
++ /*
++ * Now register the device.
++ */
++ clockevents_register_device(dev);
++ return dev->irq;
++}
++
++#if defined(CONFIG_LOCAL_TIMERS)
++/*
++ * local_timer_setup()
++ * Allocation function for creating a per cpu local timer.
++ */
++int __cpuinit local_timer_setup(unsigned int cpu)
++{
++ return timer_device_alloc_event("timer-cpu", cpu, cpumask_of_cpu(cpu));
++}
++#endif
++
++/*
++ * timer_device_init()
++ * Create and init a generic clock driver for Ubicom32.
++ */
++void timer_device_init(void)
++{
++ int i;
++
++ /*
++ * Get the frequency from the processor device tree node or use
++ * the default if not available. We will store this as the frequency
++ * of the timer to avoid future calculations.
++ */
++ frequency = processor_frequency();
++ if (frequency == 0) {
++ frequency = CLOCK_TICK_RATE;
++ }
++
++ /*
++ * Setup the primary clock source around sysval. Linux does not
++ * supply a Mhz multiplier so convert down to khz.
++ */
++ timer_device_clockbase.mult =
++ clocksource_khz2mult(frequency / 1000,
++ timer_device_clockbase.shift);
++ if (clocksource_register(&timer_device_clockbase)) {
++ printk(KERN_ERR "timer: clocksource failed to register\n");
++ return;
++ }
++
++ /*
++ * Always allocate a primary timer.
++ */
++ timer_device_alloc_event("timer-primary", -1, CPU_MASK_ALL);
++
++#if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
++ /*
++ * If BROADCAST is selected we need to add a broadcast timer.
++ */
++ timer_device_alloc_event("timer-broadcast", -1, CPU_MASK_ALL);
++#endif
++
++ /*
++ * Allocate extra timers that are requested.
++ */
++ for (i = 0; i < CONFIG_TIMER_EXTRA_ALLOC; i++) {
++ timer_device_alloc_event("timer-extra", -1, CPU_MASK_ALL);
++ }
++}
++
+--- /dev/null
++++ b/arch/ubicom32/kernel/timer_tick.c
+@@ -0,0 +1,109 @@
++/*
++ * arch/ubicom32/kernel/timer_tick.c
++ * Impelemets a perodic timer.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1991, 1992, 1995 Linus Torvalds
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/profile.h>
++
++#include <asm/ip5000.h>
++#include <asm/machdep.h>
++#if defined(CONFIG_SMP)
++#include <asm/smp.h>
++#endif
++
++static unsigned int timervector;
++static unsigned int frequency;
++
++/*
++ * timer_tick()
++ * Kernel system timer support. Needs to keep up the real-time clock,
++ * as well as call the "do_timer()" routine every clocktick.
++ */
++static irqreturn_t timer_tick(int irq, void *dummy)
++{
++ int ticks;
++
++ BUG_ON(!irqs_disabled());
++ ticks = timer_reset(timervector, frequency);
++
++ write_seqlock(&xtime_lock);
++ do_timer(ticks);
++ write_sequnlock(&xtime_lock);
++
++ update_process_times(user_mode(get_irq_regs()));
++ profile_tick(CPU_PROFILING);
++
++#if defined(CONFIG_SMP)
++ smp_send_timer_all();
++#endif
++ return(IRQ_HANDLED);
++}
++
++/*
++ * Data used by setup_irq for the timer.
++ */
++static struct irqaction timer_irq = {
++ .name = "timer",
++ .flags = IRQF_DISABLED | IRQF_TIMER,
++ .handler = timer_tick,
++};
++
++/*
++ * timer_tick_init()
++ * Implements a periodic timer
++ *
++ * This implementation directly calls the timer_tick() and move
++ * the Linux kernel forward. This is used when the user has not
++ * selected GENERIC_CLOCKEVENTS.
++ */
++void timer_tick_init(void)
++{
++ /*
++ * Now allocate a timer to ourselves.
++ */
++ timervector = timer_alloc();
++ if (timervector == -1) {
++ printk(KERN_WARNING "where did the timer go?\n");
++ return;
++ }
++
++ setup_irq(timervector, &timer_irq);
++
++ /*
++ * Get the frequency from the processor device tree node or use
++ * the default if not available. We will store this as the frequency
++ * of the timer to avoid future calculations.
++ */
++ frequency = processor_frequency();
++ if (frequency == 0) {
++ frequency = CLOCK_TICK_RATE;
++ }
++ frequency /= CONFIG_HZ;
++
++ printk(KERN_NOTICE "timer will interrupt every: %d cycles\n", frequency);
++ timer_set(timervector, frequency);
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/topology.c
+@@ -0,0 +1,47 @@
++/*
++ * arch/ubicom32/kernel/topology.c
++ * Ubicom32 architecture sysfs topology information.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/init.h>
++#include <linux/smp.h>
++#include <linux/cpu.h>
++#include <linux/cache.h>
++
++static struct cpu cpu_devices[NR_CPUS] __read_mostly;
++
++static int __init topology_init(void)
++{
++ int num;
++
++ for_each_present_cpu(num) {
++ cpu_devices[num].hotpluggable = 0;
++ register_cpu(&cpu_devices[num], num);
++ }
++ return 0;
++}
++
++subsys_initcall(topology_init);
+--- /dev/null
++++ b/arch/ubicom32/kernel/traps.c
+@@ -0,0 +1,510 @@
++/*
++ * arch/ubicom32/kernel/traps.c
++ * Ubicom32 architecture trap handling support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++/*
++ * Sets up all exception vectors
++ */
++#include <linux/sched.h>
++#include <linux/signal.h>
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/a.out.h>
++#include <linux/user.h>
++#include <linux/string.h>
++#include <linux/linkage.h>
++#include <linux/init.h>
++#include <linux/ptrace.h>
++#include <linux/kallsyms.h>
++#include <linux/compiler.h>
++#include <linux/stacktrace.h>
++#include <linux/personality.h>
++
++#include <asm/uaccess.h>
++#include <asm/stacktrace.h>
++#include <asm/devtree.h>
++#include <asm/setup.h>
++#include <asm/fpu.h>
++#include <asm/system.h>
++#include <asm/traps.h>
++#include <asm/pgtable.h>
++#include <asm/machdep.h>
++#include <asm/siginfo.h>
++#include <asm/ip5000.h>
++#include <asm/thread.h>
++
++#define TRAP_MAX_STACK_DEPTH 20
++
++/*
++ * These symbols are filled in by the linker.
++ */
++extern unsigned long _stext;
++extern unsigned long _etext;
++
++extern unsigned long __ocm_text_run_begin;
++extern unsigned long __data_begin;
++
++const char *trap_cause_strings[] = {
++ /*0*/ "inst address decode error",
++ /*1*/ "inst sync error",
++ /*2*/ "inst illegal",
++ /*3*/ "src1 address decode error",
++ /*4*/ "dst address decode error",
++ /*5*/ "src1 alignment error",
++ /*6*/ "dst alignment error",
++ /*7*/ "src1 sync error",
++ /*8*/ "dst sync error",
++ /*9*/ "DCAPT error",
++ /*10*/ "inst range error",
++ /*11*/ "src1 range error",
++ /*12*/ "dst range error",
++};
++
++/*
++ * The device tree trap node definition.
++ */
++struct trapnode {
++ struct devtree_node dn;
++ unsigned int intthread;
++};
++
++static struct trapnode *tn;;
++
++/*
++ * trap_interrupt_handler()
++ * Software Interrupt to ensure that a trap is serviced.
++ */
++static irqreturn_t trap_interrupt_handler(int irq, void *dummy)
++{
++ /* Do Nothing */
++ return IRQ_HANDLED;
++}
++
++/*
++ * Data used by setup_irq for the timer.
++ */
++static struct irqaction trap_irq = {
++ .name = "trap",
++ .flags = IRQF_DISABLED,
++ .handler = trap_interrupt_handler,
++};
++
++/*
++ * trap_cause_to_str()
++ * Convert a trap_cause into a series of printk
++ */
++static void trap_cause_to_str(long status)
++{
++ int bit;
++
++ if ((status & ((1 << TRAP_CAUSE_TOTAL) - 1)) == 0) {
++ printk(KERN_NOTICE "decode: UNKNOWN CAUSES\n");
++ return;
++ }
++
++ for (bit = 0; bit < TRAP_CAUSE_TOTAL; bit++) {
++ if (status & (1 << bit)) {
++ printk(KERN_NOTICE "\tdecode: %08x %s\n",
++ 1 << bit, trap_cause_strings[bit]);
++ }
++ }
++}
++
++/*
++ * trap_print_information()
++ * Print the cause of the trap and additional info.
++ */
++static void trap_print_information(const char *str, struct pt_regs *regs)
++{
++ printk(KERN_WARNING "\n");
++
++ if (current) {
++ printk(KERN_WARNING "Process %s (pid: %d)\n",
++ current->comm, current->pid);
++ }
++
++ if (current && current->mm) {
++ printk(KERN_NOTICE "text = 0x%p-0x%p data = 0x%p-0x%p\n"
++ KERN_NOTICE "bss = 0x%p-0x%p user-stack = 0x%p\n"
++ KERN_NOTICE "\n",
++ (void *)current->mm->start_code,
++ (void *)current->mm->end_code,
++ (void *)current->mm->start_data,
++ (void *)current->mm->end_data,
++ (void *)current->mm->end_data,
++ (void *)current->mm->brk,
++ (void *)current->mm->start_stack);
++ }
++
++ printk(KERN_WARNING "%s: Causes: 0x%08x\n", str,
++ (unsigned int)regs->trap_cause);
++ trap_cause_to_str(regs->trap_cause);
++ show_regs(regs);
++ show_stack(NULL, (unsigned long *)regs->an[7]);
++ printk(KERN_NOTICE "--- End Trap --- \n");
++}
++
++/*
++ * dump_stack()
++ * Dump the stack of the current task.
++ */
++void dump_stack(void)
++{
++ show_stack(NULL, NULL);
++}
++EXPORT_SYMBOL(dump_stack);
++
++/*
++ * show_stack()
++ * Print out information from the current stack.
++ */
++void show_stack(struct task_struct *task, unsigned long *sp)
++{
++ /*
++ * Allocate just enough entries on the stack.
++ */
++ unsigned int calls[TRAP_MAX_STACK_DEPTH];
++ unsigned long code_start = (unsigned long)CONFIG_RAMBASE;
++ unsigned long code_end = (unsigned long)CONFIG_RAMBASE+CONFIG_RAMSIZE;
++ unsigned long ocm_code_start = (unsigned long)&__ocm_text_run_begin;
++ unsigned long ocm_code_end = (unsigned long)&__data_begin;
++ unsigned long stack_end = (unsigned long)(current->stack + THREAD_SIZE - 8);
++ unsigned long stack = (unsigned long)sp;
++ int kernel_stack = 1;
++
++ /*
++ * Which task are we talking about.
++ */
++ if (!task) {
++ task = current;
++ }
++
++ /*
++ * Find the stack for the task if one was not specified. Otherwise
++ * use the specified stack.
++ */
++ if (!stack) {
++ if (task != current) {
++ stack = task->thread.sp;
++ stack_end = (unsigned long)task->stack + THREAD_SIZE - 8;
++ } else {
++ asm volatile (
++ "move.4 %0, SP \n\t"
++ : "=r" (stack)
++ );
++ }
++ }
++
++ printk(KERN_NOTICE "Starting backtrace: PID %d '%s'\n",
++ task->pid, task->comm);
++
++ /*
++ * We do 2 passes the first pass is Kernel stack is the second
++ * User stack.
++ */
++ while (kernel_stack) {
++ unsigned long *handle;
++ unsigned int i, idx = 0;
++ struct pt_regs *pt = task_pt_regs(task);
++
++ /*
++ * If the task is in user mode, reset the start
++ * and end values for text.
++ */
++ if (__user_mode(stack)) {
++ if (!(task->personality & FDPIC_FUNCPTRS)) {
++ printk(KERN_NOTICE " User Stack:\n");
++ code_start = task->mm->start_code;
++ code_end = task->mm->end_code;
++ } else {
++ printk(KERN_NOTICE " User Stack (fdpic):\n");
++
++ }
++ stack_end = task->mm->start_stack;
++ ocm_code_end = ocm_code_start = 0;
++ kernel_stack = 0;
++ } else {
++ printk(KERN_NOTICE " Kernel Stack:\n");
++ }
++
++ /*
++ * Collect the stack back trace information.
++ */
++ printk(" code[0x%lx-0x%lx]", code_start, code_end);
++ if (ocm_code_start) {
++ printk(" ocm_code[0x%lx-0x%lx]",
++ ocm_code_start, ocm_code_end);
++ }
++ printk("\n stack[0x%lx-0x%lx]\n", stack, stack_end);
++
++ handle = (unsigned long*)stack;
++ while (idx < TRAP_MAX_STACK_DEPTH) {
++ calls[idx] = stacktrace_iterate(&handle,
++ code_start, code_end,
++ ocm_code_start, ocm_code_end,
++ (unsigned long)stack, stack_end);
++ if (calls[idx] == 0) {
++ break;
++ }
++ idx++;
++ }
++
++ /*
++ * Now print out the data.
++ */
++ printk(KERN_NOTICE " CALL && CALLI on stack:");
++ for (i = 0; i < idx; i++) {
++ printk("%s0x%x, ", (i & 0x3) == 0 ? "\n " : "",
++ calls[i]);
++ }
++ printk(idx == TRAP_MAX_STACK_DEPTH ? "...\n" : "\n");
++
++ /*
++ * If we are doing user stack we are done
++ */
++ if (!kernel_stack) {
++ break;
++ }
++
++ /*
++ * Does this kernel stack have a mm (i.e. is it user)
++ */
++ if (!task->mm) {
++ printk("No mm for userspace stack.\n");
++ break;
++ }
++ /*
++ * Get the user-mode stack (if any)
++ */
++ stack = pt->an[7];
++ printk(KERN_NOTICE "Userspace stack at 0x%lx frame type %d\n",
++ stack, (int)pt->frame_type);
++ if (!__user_mode(stack)) {
++ break;
++ }
++ }
++}
++
++/*
++ * die_if_kernel()
++ * Determine if we are in kernel mode and if so print stuff out and die.
++ */
++void die_if_kernel(char *str, struct pt_regs *regs, long trap_cause)
++{
++ unsigned int s3value;
++
++ if (user_mode(regs)) {
++ return;
++ }
++
++ console_verbose();
++ trap_print_information(str, regs);
++
++ /*
++ * If the debugger is attached via the hardware mailbox protocol,
++ * go into an infinite loop and the debugger will figure things out.
++ */
++ asm volatile (
++ "move.4 %0, scratchpad3"
++ : "=r" (s3value)
++ );
++ if (s3value) {
++ asm volatile("1: jmpt.t 1b");
++ }
++
++ /*
++ * Set the debug taint value.
++ */
++ add_taint(TAINT_DIE);
++ do_exit(SIGSEGV);
++}
++
++/*
++ * trap_handler()
++ * Handle traps.
++ *
++ * Traps are treated as interrupts and registered with the LDSR. When
++ * the LDSR takes the interrupt, it will determine if a trap has occurred
++ * and service the trap prior to servicing the interrupt.
++ *
++ * This function is directly called by the LDSR.
++ */
++void trap_handler(int irq, struct pt_regs *regs)
++{
++ int sig = SIGSEGV;
++ siginfo_t info;
++ unsigned int trap_cause = regs->trap_cause;
++
++ BUG_ON(!irqs_disabled());
++
++ /*
++ * test if in kernel and die.
++ */
++ die_if_kernel("Kernel Trap", regs, trap_cause);
++
++ /*
++ * User process problem, setup a signal for this process
++ */
++ if ((trap_cause & (1 << TRAP_CAUSE_DST_RANGE_ERR)) ||
++ (trap_cause & (1 << TRAP_CAUSE_SRC1_RANGE_ERR)) ||
++ (trap_cause & (1 << TRAP_CAUSE_I_RANGE_ERR))) {
++ sig = SIGSEGV;
++ info.si_code = SEGV_MAPERR;
++ } else if ((trap_cause & (1 << TRAP_CAUSE_DST_MISALIGNED)) ||
++ (trap_cause & (1 << TRAP_CAUSE_SRC1_MISALIGNED))) {
++ sig = SIGBUS;
++ info.si_code = BUS_ADRALN;
++ } else if ((trap_cause & (1 << TRAP_CAUSE_DST_DECODE_ERR)) ||
++ (trap_cause & (1 << TRAP_CAUSE_SRC1_DECODE_ERR))) {
++ sig = SIGILL;
++ info.si_code = ILL_ILLOPN;
++ } else if ((trap_cause & (1 << TRAP_CAUSE_ILLEGAL_INST))) {
++ /*
++ * Check for software break point and if found signal trap
++ * not illegal instruction.
++ */
++ unsigned long instruction;
++ if (between(regs->pc, CONFIG_RAMBASE,
++ CONFIG_RAMBASE + CONFIG_RAMSIZE) &&
++ (regs->pc & 3) == 0 &&
++ get_user(instruction, (unsigned long *)regs->pc) == 0) {
++
++ /*
++ * This used to be 0xaabbccdd but it turns out
++ * that is now valid in ubicom32v4 isa so we
++ * have switched to 0xfabbccdd
++ */
++ if ((instruction == 0xfabbccdd) ||
++ (instruction == 0xaabbccdd)) {
++ sig = SIGTRAP;
++ info.si_code = TRAP_BRKPT;
++ goto send_signal;
++ }
++ }
++ sig = SIGILL;
++ info.si_code = ILL_ILLOPC;
++ } else if ((trap_cause & (1 << TRAP_CAUSE_I_DECODE_ERR))) {
++ sig = SIGILL;
++ info.si_code = ILL_ILLOPC;
++ } else if ((trap_cause & (1 << TRAP_CAUSE_DCAPT))) {
++ sig = SIGTRAP;
++ info.si_code = TRAP_TRACE;
++ }
++
++ /*
++ * Print a trap information block to the console, do not
++ * print this above the case because we don't want it
++ * printed for software break points.
++ */
++ trap_print_information("User Trap", regs);
++
++send_signal:
++
++ force_sig_info(sig, &info, current);
++
++ /*
++ * Interrupts are disabled, re-enable them now.
++ */
++ if (!irqs_disabled()) {
++ printk(KERN_EMERG "interrupts enabled on exit, irq=%d, regs=%p",
++ irq, regs);
++ BUG();
++ }
++}
++
++/*
++ * trap_init_interrupt()
++ * We need a 2nd trap handling init that will occur after init_IRQ().
++ */
++void __init trap_init_interrupt(void)
++{
++ int err;
++ unsigned char tirq;
++ struct devtree_node *dn = (struct devtree_node *)tn;
++
++ /*
++ * Now setup the Software IRQ so that if a trap occurs the LDSR
++ * is started. The irq is there just to "force" the LDSR to run.
++ */
++ if (!tn) {
++ printk(KERN_WARNING "trap_init_interrupt skipped.\n");
++ return;
++ }
++
++ err = devtree_irq(dn, NULL, &tirq);
++ if (err) {
++ printk(KERN_WARNING "error obtaining trap irq value: %d\n",
++ err);
++ return;
++ }
++
++ if (tirq == DEVTREE_IRQ_NONE) {
++ printk(KERN_WARNING "trap irq not available: %d\n", tirq);
++ return;
++ }
++
++ err = setup_irq(tirq, &trap_irq);
++ if (err) {
++ printk(KERN_WARNING "trap irq setup failed: %d\n", err);
++ return;
++ }
++
++ /*
++ * Let ultra know which thread is handling the traps and
++ * what the interrupt to use is.
++ */
++ tn->intthread = ldsr_get_threadid();
++
++ /*
++ * Tell the LDSR about our IRQ so that it will unsuspend
++ * if one occurs while waiting for the per thread lock.
++ */
++ ldsr_set_trap_irq(tirq);
++}
++
++/*
++ * trap_init()
++ * init trap handling
++ *
++ * Trap handling is done through the ldsr. Every time an interrupt
++ * occurs, the LDSR looks for threads that are listed in the TRAP
++ * register and forces a call to the trap handler.
++ */
++void __init trap_init(void)
++{
++ /*
++ * If we do not have a trap node in the device tree, we leave the fault
++ * handling to the underlying hardware.
++ */
++ tn = (struct trapnode *)devtree_find_node("traps");
++ if (!tn) {
++ printk(KERN_WARNING "traps are not handled by linux\n");
++ return;
++ }
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/uaccess.c
+@@ -0,0 +1,109 @@
++/*
++ * arch/ubicom32/include/asm/uaccess.c
++ * User space memory access functions for Ubicom32 architecture.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/string.h>
++#include <linux/module.h>
++
++#include <asm/segment.h>
++#include <asm/uaccess.h>
++
++extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
++
++/*
++ * __access_ok()
++ * Check that the address is in the current processes.
++ *
++ * NOTE: The kernel uses "pretend" user addresses that wind
++ * up calling access_ok() so this approach has only marginal
++ * value because you wind up with lots of false positives.
++ */
++int __access_ok(unsigned long addr, unsigned long size)
++{
++ // struct vm_area_struct *vma;
++
++ /*
++ * Don't do anything if we are not a running system yet.
++ */
++ if (system_state != SYSTEM_RUNNING) {
++ return 1;
++ }
++
++ /*
++ * It appears that Linux will call this function even when we are not
++ * in the context of a user space application that has a VM address
++ * space. So we must check that current and mm are valid before
++ * performing the check.
++ */
++ if ((!current) || (!current->mm)) {
++ return 1;
++ }
++
++ /*
++ * We perform some basic checks on the address to ensure that it
++ * is at least within the range of DRAM.
++ */
++ if ((addr < (int)&_etext) || (addr > memory_end)) {
++ printk(KERN_WARNING "pid=%d[%s]: range [%lx - %lx] not in memory area: [%lx - %lx]\n",
++ current->pid, current->comm,
++ addr, addr + size,
++ memory_start, memory_end);
++ return 0;
++ }
++
++ /*
++ * For nommu Linux we can check this by looking at the allowed
++ * memory map for the process.
++ *
++ * TODO: Since the kernel passes addresses in it's own space as though
++ * they were user address, we can not validate the addresses this way.
++ */
++#if 0
++ if (!down_read_trylock(¤t->mm->mmap_sem)) {
++ return 1;
++ }
++ vma = find_vma(current->mm, addr);
++ if (!vma) {
++ up_read(¤t->mm->mmap_sem);
++ printk(KERN_WARNING "pid=%d[%s]: possible invalid acesss on range: [%lx - %lx]\n",
++ current->pid, current->comm, addr, addr + size);
++ return 1;
++ }
++ if ((addr + size) > vma->vm_end) {
++ up_read(¤t->mm->mmap_sem);
++ printk(KERN_WARNING "pid=%d[%s]: possible invalid length on range: [%lx - %lx]\n",
++ current->pid, current->comm, addr, addr + size);
++ return 1;
++ }
++ up_read(¤t->mm->mmap_sem);
++#endif
++ return 1;
++}
++
++EXPORT_SYMBOL(__access_ok);
+--- /dev/null
++++ b/arch/ubicom32/kernel/ubicom32_context_switch.S
+@@ -0,0 +1,325 @@
++/*
++ * arch/ubicom32/kernel/ubicom32_context_switch.S
++ * Implements context switch and return functions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/sys.h>
++#include <linux/linkage.h>
++#include <asm/asm-offsets.h>
++#include <asm/ubicom32-common.h>
++#include <asm/ip5000.h>
++#include <asm/range-protect.h>
++
++/*
++ * restore_context()
++ * Restore the full context from sp (struct pt_reg *)
++ *
++ * Note: Recovered PC and CSR are saved on the stack and are to be popped off
++ * before returning.
++ */
++.macro restore_context
++ move.4 a0, sp ; Set up a0 as base address for register recovery
++ move.4 sp, PT_SP(a0) ; Recover Stack pointer from save area
++ move.4 -4(sp)++, PT_PC(a0) ; Recover saved PC and save to stack
++ move.4 -4(sp)++, PT_CSR(a0) ; Recover saved csr and save to stack
++ move.4 d0, PT_D0(a0)
++ move.4 d1, PT_D1(a0)
++ move.4 d2, PT_D2(a0)
++ move.4 d3, PT_D3(a0)
++ move.4 d4, PT_D4(a0)
++ move.4 d5, PT_D5(a0)
++ move.4 d6, PT_D6(a0)
++ move.4 d7, PT_D7(a0)
++ move.4 d8, PT_D8(a0)
++ move.4 d9, PT_D9(a0)
++ move.4 d10, PT_D10(a0)
++ move.4 d11, PT_D11(a0)
++ move.4 d12, PT_D12(a0)
++ move.4 d13, PT_D13(a0)
++ move.4 d14, PT_D14(a0)
++ move.4 d15, PT_D15(a0)
++ move.4 a1, PT_A1(a0)
++ move.4 a2, PT_A2(a0)
++ move.4 a3, PT_A3(a0)
++ move.4 a4, PT_A4(a0)
++ move.4 a5, PT_A5(a0)
++ move.4 a6, PT_A6(a0)
++ move.4 acc0_hi, PT_ACC0HI(a0)
++ move.4 acc0_lo, PT_ACC0LO(a0)
++ move.4 mac_rc16, PT_MAC_RC16(a0)
++ move.4 acc1_hi, PT_ACC1HI(a0)
++ move.4 acc1_lo, PT_ACC1LO(a0)
++ move.4 source3, PT_SOURCE3(a0)
++ move.4 int_mask0, PT_INT_MASK0(a0)
++ move.4 int_mask1, PT_INT_MASK1(a0)
++ move.4 a0, PT_A0(a0)
++.endm
++
++/*
++ * ldsr_thread_enable_interrupts()
++ * An assembly version of the enable interrupts function.
++ *
++ * The stack is fair game but all registers MUST be preserved.
++ *
++ */
++.macro ldsr_thread_enable_interrupts
++ move.4 -4(sp)++, d3 ; Push d3
++ move.4 -4(sp)++, a3 ; Push a3
++
++ /*
++ * Read the ROSR and obtain ~(1 << tid)
++ */
++ lsr.4 d3, rosr, #0x2 ; Move the thread portion of ROSR into d3
++ lsl.4 d3, #1, d3 ; perform a (1 << tid)
++ not.4 d3, d3 ; Negate the value of d3 == ~(1 << threadid)
++
++ /*
++ * Get the value of the ldsr_soft_irq_mask
++ */
++ moveai a3, #%hi(ldsr_soft_irq_mask)
++ move.4 a3, %lo(ldsr_soft_irq_mask)(a3)
++
++ /*
++ * Now re-enable interrupts for this thread and then
++ * wakeup the LDSR.
++ */
++ and.4 scratchpad1, scratchpad1, d3
++ move.4 int_set0, a3
++
++ /*
++ * Restore the registers.
++ */
++ move.4 a3, (sp)4++
++ move.4 d3, (sp)4++
++.endm
++
++/*
++ * ret_from_interrupt_to_kernel()
++ * RFI function that is where do_IRQ() returns to if the thread was in kernel space.
++ */
++ .section .text.ret_from_interrupt_to_kernel
++ .global ret_from_interrupt_to_kernel
++ret_from_interrupt_to_kernel:
++ atomic_lock_acquire ; Enter critical section
++ restore_context ; Restore the thread context
++ atomic_lock_release ; Leave critical section
++ ldsr_thread_enable_interrupts ; enable the threads interrupts
++ move.4 csr, (sp)4++ ; Restore csr from the stack
++ ret (sp)4++
++
++/*
++ * ret_from_interrupt_to_user()
++ * RFI function that is where do_IRQ() returns to if the thread was in user space.
++ *
++ * TODO: Do we really need the ciritical section handling in this code?
++ *
++ */
++ .section .ret_from_interrupt_to_user.text
++ .global ret_from_interrupt_to_user
++ret_from_interrupt_to_user:
++ ldsr_thread_enable_interrupts ; enable the threads interrupts
++ movei d0, #(~(ASM_THREAD_SIZE-1))
++ and.4 a3, sp, d0 ; a3 now has the thread info pointer
++
++ /*
++ * Test if the scheduler needs to be called.
++ */
++ btst TI_FLAGS(a3), #ASM_TIF_NEED_RESCHED
++ jmpeq.t 2f
++ moveai a5, #%hi(schedule)
++ calli a5, %lo(schedule)(a5) ; Call the scheduler. I will come back here.
++
++ /*
++ * See if we have pending signals and call do_signal
++ * if needed.
++ */
++2: atomic_lock_acquire ; Enter critical section
++ move.4 -4(sp)++, a1 ; Save A1 on the stack. We are going to use a1 it.
++ movei d0, #(~(ASM_THREAD_SIZE-1))
++ and.4 a1, sp, d0 ; a1 now has the thread info pointer
++ btst TI_FLAGS(a1), #ASM_TIF_SIGPENDING ; Any signals needed?
++ jmpeq.t 1f
++
++
++ /*
++ * Now call do_signal()
++ */
++ atomic_lock_release ; Leave critical section
++ move.4 d0, #0 ; oldset pointer is NULL
++ lea.1 d1, 4(sp) ; d1 is the regs pointer
++ moveai a5, #%hi(do_signal)
++ calli a5, %lo(do_signal)(a5) ; Call do_signal()
++
++ /*
++ * Back from do_signal(), re-enter critical section.
++ */
++ atomic_lock_acquire ; Enter critical section
++
++1: move.4 a1, (sp)4++ ; pop A1 off the stack
++
++ disable_kernel_ranges_for_current d15 ; disable kernel ranges
++
++ restore_context ; restore the previous context
++ atomic_lock_release ; Leave critical section
++ move.4 csr, (sp)4++ ; Restore csr from the stack
++ ret (sp)4++
++
++/*
++ * restore_all_registers()
++ *
++ * restore_all_registers will be the alternate exit route for
++ * preempted processes that have called a signal handler
++ * and are returning back to user space.
++ */
++ .global restore_all_registers
++restore_all_registers:
++ atomic_lock_acquire ; Enter critical section
++ disable_kernel_ranges_for_current d15 ; disable kernel ranges
++ atomic_lock_release ; Leave critical section
++ restore_context ; restore previous context
++ move.4 csr, (sp)4++ ; Restore csr from the stack
++ ret (sp)4++
++
++/*
++ * ret_from_fork()
++ * Called on the child's return from fork system call.
++ */
++ .section .ret_from_fork.text
++ .global ret_from_fork
++ret_from_fork:
++ ;;; d0 contains the arg for schedule_tail
++ ;;; the others we don't care about as they are in PT_REGS (sp)
++ moveai a5, #%hi(schedule_tail)
++ calli a5, %lo(schedule_tail)(a5)
++
++ atomic_lock_acquire ; Enter critical section
++
++ move.4 a3, sp
++ move.4 d0, PT_D0(a3) ; Restore D0
++ move.4 d1, PT_D1(a3) ; Restore D1
++ move.4 d2, PT_D2(a3) ; Restore D2
++ move.4 d3, PT_D3(a3) ; Restore D3
++ move.4 d10, PT_D10(a3) ; Restore D10
++ move.4 d11, PT_D11(a3) ; Restore D11
++ move.4 d12, PT_D12(a3) ; Restore D12
++ move.4 d13, PT_D13(a3) ; Restore D13
++ move.4 a1, PT_A1(a3) ; Restore A1
++ move.4 a2, PT_A2(a3) ; Restore A2
++ move.4 a5, PT_A5(a3) ; Restore A5
++ move.4 a6, PT_A6(a3) ; Restore A6
++ move.4 sp, PT_SP(a3) ; Restore sp
++ move.4 a4, PT_PC(a3) ; Restore pc in register a4
++ move.4 PT_FRAME_TYPE(a3), #0 ; Clear frame_type to indicate it is invalid.
++
++ disable_kernel_ranges_for_current d15
++ atomic_lock_release ; Leave critical section
++ calli a4, 0(a4) ; Return.
++
++/*
++ * __switch_to()
++ *
++ * Call with:
++ * void *__switch_to(struct task_struct *prev, struct thread_struct *prev_switch,
++ * struct thread_struct *next_switch)
++ */
++ .global __switch_to
++__switch_to:
++
++ /*
++ * Set up register a3 to point to save area.
++ */
++ movea a3, d1 ; a3 now holds prev_switch
++ move.4 (a3)4++, d10
++ move.4 (a3)4++, d11
++ move.4 (a3)4++, d12
++ move.4 (a3)4++, d13
++ move.4 (a3)4++, a1
++ move.4 (a3)4++, a2
++ move.4 (a3)4++, a5
++ move.4 (a3)4++, a6
++ move.4 (a3)4++, a7
++
++ /*
++ * Set up register a3 to point to restore area.
++ */
++ movea a3, d2 ; a3 now holds next_switch
++ move.4 d10 , (a3)4++
++ move.4 d11 , (a3)4++
++ move.4 d12 , (a3)4++
++ move.4 d13 , (a3)4++
++ move.4 a1 , (a3)4++
++ move.4 a2 , (a3)4++
++ move.4 a5 , (a3)4++
++ move.4 a6 , (a3)4++
++ move.4 a7 , (a3)4++
++
++ /*
++ * Load the sw_ksp with the proper thread_info pointer.
++ */
++ movei d15, #(~(ASM_THREAD_SIZE-1))
++ and.4 a3, sp, d15 ; a3 now has the thread info pointer
++ moveai a4, #%hi(sw_ksp)
++ lea.1 a4, %lo(sw_ksp)(a4) ; a4 now has the base address of sw_ksp array
++ lsr.4 d15, ROSR, #2 ; Thread number + garbage
++ and.4 d15, #31, D15 ; Mask to get thread number into register D15
++ move.4 (a4, d15), a3 ; Load the thread info pointer into the hw_ksp array..
++
++ /*
++ * We are done with context switch. Time to return..
++ */
++ ret a5
++
++
++/*
++ * ubicom32_emulate_insn()
++ * Emulates the instruction.
++ *
++ * Call with:
++ * unsigned int ubicom32_emulate_insn(int source1, int source2, int source3, int *save_acc, int *save_csr);
++ */
++ .global ubicom32_emulate_insn
++ .global trap_emulate
++ubicom32_emulate_insn:
++ movea a3, d3 ; a3 holds save_acc pointer
++ movea a4, d4 ; a4 hods save_csr pointer
++ move.4 source3, d2
++ move.4 acc0_lo, (a3)
++ move.4 acc0_hi, 4(a3)
++ move.4 acc1_lo, 8(a3)
++ move.4 acc1_hi, 12(a3)
++ move.4 mac_rc16, 16(a3)
++ move.4 CSR, (a4)
++ setcsr_flush 0
++
++trap_emulate:
++ move.4 d0, d1
++ setcsr_flush 0
++ move.4 (a4), CSR ; Save csr
++ move.4 (a3), acc0_lo
++ move.4 4(a3), acc0_hi
++ move.4 8(a3), acc1_lo
++ move.4 12(a3), acc1_hi
++ move.4 16(a3), mac_rc16
++ ret a5
+--- /dev/null
++++ b/arch/ubicom32/kernel/ubicom32_ksyms.c
+@@ -0,0 +1,95 @@
++/*
++ * arch/ubicom32/kernel/ubicom32_ksyms.c
++ * Ubicom32 architecture compiler support and misc symbols.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/linkage.h>
++#include <linux/sched.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/user.h>
++#include <linux/elfcore.h>
++#include <linux/in6.h>
++#include <linux/interrupt.h>
++#include <linux/io.h>
++#include <linux/semaphore.h>
++
++#include <asm/setup.h>
++#include <asm/machdep.h>
++#include <asm/pgalloc.h>
++#include <asm/irq.h>
++#include <asm/checksum.h>
++#include <asm/current.h>
++
++/* platform dependent support */
++
++EXPORT_SYMBOL(__ioremap);
++EXPORT_SYMBOL(iounmap);
++
++EXPORT_SYMBOL(ip_fast_csum);
++
++
++/* Networking helper routines. */
++EXPORT_SYMBOL(csum_partial_copy_nocheck);
++
++/* The following are special because they're not called
++ explicitly (the C compiler generates them). Fortunately,
++ their interface isn't gonna change any time soon now, so
++ it's OK to leave it out of version control. */
++EXPORT_SYMBOL(memcpy);
++EXPORT_SYMBOL(memset);
++
++#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) || __GNUC__ > 4
++/*
++ * libgcc functions - functions that are used internally by the
++ * compiler... (prototypes are not correct though, but that
++ * doesn't really matter since they're not versioned).
++ */
++extern void __ashldi3(void);
++extern void __ashrdi3(void);
++extern void __divsi3(void);
++extern void __lshrdi3(void);
++extern void __modsi3(void);
++extern void __muldi3(void);
++extern void __udivsi3(void);
++extern void __umodsi3(void);
++
++/* gcc lib functions */
++EXPORT_SYMBOL(__ashldi3);
++EXPORT_SYMBOL(__ashrdi3);
++EXPORT_SYMBOL(__divsi3);
++EXPORT_SYMBOL(__lshrdi3);
++EXPORT_SYMBOL(__modsi3);
++EXPORT_SYMBOL(__muldi3);
++EXPORT_SYMBOL(__udivsi3);
++EXPORT_SYMBOL(__umodsi3);
++#else
++extern void __libgcc_udivmodsi(void);
++extern void __libgcc_divmodsi(void);
++
++EXPORT_SYMBOL(__libgcc_udivmodsi);
++EXPORT_SYMBOL(__libgcc_divmodsi);
++#endif
+--- /dev/null
++++ b/arch/ubicom32/kernel/ubicom32_syscall.S
+@@ -0,0 +1,643 @@
++/*
++ * arch/ubicom32/kernel/ubicom32_syscall.S
++ * <TODO: Replace with short file description>
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/sys.h>
++#include <linux/linkage.h>
++#include <linux/unistd.h>
++
++#include <asm/ubicom32-common.h>
++#include <asm/thread_info.h>
++#include <asm/asm-offsets.h>
++#include <asm/range-protect.h>
++
++/*
++ * system_call()
++ */
++ .section .syscall_entry.text
++ .global system_call
++system_call:
++ /*
++ * Regular ABI rules for function calls apply for syscall. d8 holds
++ * the syscall number. We will use that to index into the syscall table.
++ * d0 - d5 hold the parameters.
++ *
++ * First we get the current thread_info and swap to the kernel stack.
++ * This is done by reading the current thread and looking up the ksp
++ * from the sw_ksp array and storing it in a3.
++ *
++ * Then we reserve space for the syscall context a struct pt_regs and
++ * save it using a4 initially and later as sp.
++ * Once sp is set to the kernel sp we can leave the critical section.
++ *
++ * For the user case the kernel stack will have the following layout.
++ *
++ * a3 ksp[0] +-----------------------+
++ * | Thread info area |
++ * | struct thread_info |
++ * +-----------------------+
++ * : :
++ * | Kernel Stack Area |
++ * | |
++ * a4 / sp >>> +-----------------------+
++ * | Context save area |
++ * | struct pt_reg |
++ * ksp[THREAD_SIZE-8] +-----------------------+
++ * | 8 Byte Buffer Zone |
++ * ksp[THREAD_SIZE] +-----------------------+
++
++ *
++ * For kernel syscalls the layout is as follows.
++ *
++ * a3 ksp[0] +-----------------------+
++ * | Thread info area |
++ * | struct thread_info |
++ * +-----------------------+
++ * : :
++ * | Kernel Stack Area |
++ * | |
++ * a4 / sp >>> +-----------------------+
++ * | Context save area |
++ * | struct pt_reg |
++ * sp at syscall entry +-----------------------+
++ * | Callers Kernel Stack |
++ * : :
++ *
++ * Once the context is saved we optionally call syscall_trace and setup
++ * the exit routine and jump to the syscall.
++ */
++
++ /*
++ * load the base address for sw_ksp into a3
++ * Note.. we cannot access it just yet as protection is still on.
++ */
++ moveai a3, #%hi(sw_ksp)
++ lea.1 a3, %lo(sw_ksp)(a3)
++
++ /*
++ * Enter critical section .
++ *
++ * The 'critical' aspects here are the switching the to the ksp and
++ * changing the protection registers, these both use per thread
++ * information so we need to protect from a context switch. For now this
++ * is done using the global atomic lock.
++ */
++ atomic_lock_acquire
++
++ thread_get_self d15 ; Load current thread number
++#ifdef CONFIG_PROTECT_KERNEL
++ lsl.4 d9, #1, d15 ; Convert to thread bit
++ enable_kernel_ranges d9
++#endif
++ /*
++ * We need to Determine if this is a kernel syscall or user syscall.
++ * Start by loading the pointer for the thread_info structure for the
++ * current process in to a3.
++ */
++ move.4 a3, (a3, d15) ; a3 = sw_ksp[d15]
++
++ /*
++ * Now if this is a kernel thread the same value can be a acheived by
++ * masking off the lower bits on the current stack pointer.
++ */
++ movei d9, #(~(ASM_THREAD_SIZE-1)) ; load mask
++ and.4 d9, sp, d9 ; apply mask
++
++ /*
++ * d9 now has the masked version of the sp. If this is identical to
++ * what is in a3 then don't switch to ksp as we are already in the
++ * kernel.
++ */
++ sub.4 #0, a3, d9
++
++ /*
++ * if d9 and a3 are not equal. We are usespace and have to shift to
++ * ksp.
++ */
++ jmpne.t 1f
++
++ /*
++ * Kernel Syscall.
++ *
++ * The kernel has called this routine. We have to pdec space for pt_regs
++ * from sp.
++ */
++ pdec a4, PT_SIZE(sp) ; a4 = ksp - PT_SIZE
++ jmpt.t 2f
++
++ /*
++ * Userspace Syscall.
++ *
++ * Add THREAD_SIZE and subtract PT_SIZE to create the proper ksp
++ */
++1: movei d15, #(ASM_THREAD_SIZE - 8 - PT_SIZE)
++ lea.1 a4, (a3, d15) ; a4 = ksp + d15
++
++ /*
++ * Replace user stack pointer with kernel stack pointer (a4)
++ * Load -1 into frame_type in save area to indicate this is system call
++ * frame.
++ */
++2: move.4 PT_A7(a4), a7 ; Save old sp/A7 on kernel stack
++ move.4 PT_FRAME_TYPE(a4), #-1 ; Set the frame type.
++ move.4 sp, a4 ; Change to ksp.
++ /*
++ * We are now officially back in the kernel!
++ */
++
++ /*
++ * Now that we are on the ksp we can leave the critical section
++ */
++ atomic_lock_release
++
++ /*
++ * We need to save a0 because we need to be able to restore it in
++ * the event that we need to handle a signal. It's not generally
++ * a callee-saved register but is the GOT pointer.
++ */
++ move.4 PT_A0(sp), a0 ; Save A0 on kernel stack
++
++ /*
++ * We still need to save d10-d13, a1, a2, a5, a6 in the kernel frame
++ * for this process, we also save the system call params in the case of
++ * syscall restart. (note a7 was saved above)
++ */
++ move.4 PT_A1(sp), a1 ; Save A1 on kernel stack
++ move.4 PT_A2(sp), a2 ; Save A2 on kernel stack
++ move.4 PT_A5(sp), a5 ; Save A5 on kernel stack
++ move.4 PT_A6(sp), a6 ; Save A6 on kernel stack
++ move.4 PT_PC(sp), a5 ; Save A5 at the PC location
++ move.4 PT_D10(sp), d10 ; Save D10 on kernel stack
++ move.4 PT_D11(sp), d11 ; Save D11 on kernel stack
++ move.4 PT_D12(sp), d12 ; Save D12 on kernel stack
++ move.4 PT_D13(sp), d13 ; Save D13 on kernel stack
++
++ /*
++ * Now save the syscall parameters
++ */
++ move.4 PT_D0(sp), d0 ; Save d0 on kernel stack
++ move.4 PT_ORIGINAL_D0(sp), d0 ; Save d0 on kernel stack
++ move.4 PT_D1(sp), d1 ; Save d1 on kernel stack
++ move.4 PT_D2(sp), d2 ; Save d2 on kernel stack
++ move.4 PT_D3(sp), d3 ; Save d3 on kernel stack
++ move.4 PT_D4(sp), d4 ; Save d4 on kernel stack
++ move.4 PT_D5(sp), d5 ; Save d5 on kernel stack
++ /* add this back if we ever have a syscall with 7 args */
++ move.4 PT_D8(sp), d8 ; Save d8 on kernel stack
++
++ /*
++ * Test if syscalls are being traced and if they are jump to syscall
++ * trace (it will comeback here)
++ */
++ btst TI_FLAGS(a3), #ASM_TIF_SYSCALL_TRACE
++ jmpne.f .Lsystem_call__trace
++.Lsystem_call__trace_complete:
++ /*
++ * Check for a valid call number [ 0 <= syscall_number < NR_syscalls ]
++ */
++ cmpi d8, #0
++ jmplt.f 3f
++ cmpi d8, #NR_syscalls
++ jmplt.t 4f
++
++ /*
++ * They have passed an invalid number. Call sys_ni_syscall staring by
++ * load a4 with the base address of sys_ni_syscall
++ */
++3: moveai a4, #%hi(sys_ni_syscall)
++ lea.1 a4, %lo(sys_ni_syscall)(a4)
++ jmpt.t 5f ; Jump to regular processing
++
++ /*
++ * Validated syscall, load the syscall table base address into a3 and
++ * read the syscall ptr out.
++ */
++4: moveai a3, #%hi(sys_call_table)
++ lea.1 a3, %lo(sys_call_table)(a3) ; a3 = sys_call_table
++ move.4 a4, (a3, d8) ; a4 = sys_call_table[d8]
++
++ /*
++ * Before calling the syscall, setup a5 so that syscall_exit is called
++ * on return from syscall
++ */
++5: moveai a5, #%hi(syscall_exit) ; Setup return address
++ lea.1 a5, %lo(syscall_exit)(a5) ; from system call
++
++ /*
++ * If the syscall is __NR_rt_rigreturn then we have to test d1 to
++ * figure out if we have to change change the return routine to restore
++ * all registers.
++ */
++ cmpi d8, #__NR_rt_sigreturn
++ jmpeq.f 6f
++
++ /*
++ * Launch system call (it will return through a5 - syscall_exit)
++ */
++ calli a3, 0(a4)
++
++ /*
++ * System call is rt_sigreturn. Test d1. If it is 1 we have to
++ * change the return address to restore_all_registers
++ */
++6: cmpi d1, #1
++ jmpne.t 7f
++
++ moveai a5, #%hi(restore_all_registers) ; Setup return address
++ lea.1 a5, %lo(restore_all_registers)(a5) ; to restore_all_registers.
++
++ /*
++ * Launch system call (it will return through a5)
++ */
++7: calli a3, 0(a4) ; Launch system call
++
++.Lsystem_call__trace:
++ /*
++ * Syscalls are being traced.
++ * Call syscall_trace, (return here)
++ */
++ moveai a4, #%hi(syscall_trace)
++ calli a5, %lo(syscall_trace)(a4)
++
++ /*
++ * Restore syscall state (it would have been discarded during the
++ * syscall trace)
++ */
++ move.4 d0, PT_D0(sp) ; Restore d0 from kernel stack
++ move.4 d1, PT_D1(sp) ; Restore d1 from kernel stack
++ move.4 d2, PT_D2(sp) ; Restore d2 from kernel stack
++ move.4 d3, PT_D3(sp) ; Restore d3 from kernel stack
++ move.4 d4, PT_D4(sp) ; Restore d4 from kernel stack
++ move.4 d5, PT_D5(sp) ; Restore d5 from kernel stack
++ /* add this back if we ever have a syscall with 7 args */
++ move.4 d8, PT_D8(sp) ; Restore d8 from kernel stack
++
++ /*
++ * return to syscall
++ */
++ jmpt.t .Lsystem_call__trace_complete
++ .size system_call, . - system_call
++
++/*
++ * syscall_exit()
++ */
++ .section .syscall_exit.text
++ .global syscall_exit
++syscall_exit:
++ /*
++ * d0 contains the return value. We should move that into the kernel
++ * stack d0 location. We will be transitioning from kernel to user
++ * mode. Test the flags and see if we have to call schedule. If we are
++ * going to truly exit then all that has to be done is that from the
++ * kernel stack we have to restore d0, a0, a1, a2, a5, a6 and sp (a7)bb
++ * and then return via a5.
++ */
++
++ /*
++ * Save d0 to pt_regs
++ */
++ move.4 PT_D0(sp), d0 ; Save d0 into the kernel stack
++
++ /*
++ * load the thread_info structure by masking off the THREAD_SIZE
++ * bits.
++ *
++ * Note: we used to push a1, but now we don't as we are going
++ * to eventually restore it to the userspace a1.
++ */
++ movei d9, #(~(ASM_THREAD_SIZE-1))
++ and.4 a1, sp, d9
++
++ /*
++ * Are any interesting bits set on TI flags, if there are jump
++ * aside to post_processing.
++ */
++ move.4 d9, #(_TIF_SYSCALL_TRACE | _TIF_NEED_RESCHED | _TIF_SIGPENDING)
++ and.4 #0, TI_FLAGS(a1), d9
++ jmpne.f .Lsyscall_exit__post_processing ; jump to handler
++.Lsyscall_exit__post_processing_complete:
++
++ move.4 d0, PT_D0(sp) ; Restore D0 from kernel stack
++ move.4 d1, PT_D1(sp) ; Restore d1 from kernel stack
++ move.4 d2, PT_D2(sp) ; Restore d2 from kernel stack
++ move.4 d3, PT_D3(sp) ; Restore d3 from kernel stack
++ move.4 d4, PT_D4(sp) ; Restore d4 from kernel stack
++ move.4 d5, PT_D5(sp) ; Restore d5 from kernel stack
++ move.4 d8, PT_D8(sp) ; Restore d8 from kernel stack
++ move.4 d10, PT_D10(sp) ; Restore d10 from kernel stack
++ move.4 d11, PT_D11(sp) ; Restore d11 from kernel stack
++ move.4 d12, PT_D12(sp) ; Restore d12 from kernel stack
++ move.4 d13, PT_D13(sp) ; Restore d13 from kernel stack
++ move.4 a1, PT_A1(sp) ; Restore A1 from kernel stack
++ move.4 a2, PT_A2(sp) ; Restore A2 from kernel stack
++ move.4 a5, PT_A5(sp) ; Restore A5 from kernel stack
++ move.4 a6, PT_A6(sp) ; Restore A6 from kernel stack
++ move.4 a0, PT_A0(sp) ; Restore A6 from kernel stack
++
++ /*
++ * this is only for debug, and could be removed for production builds
++ */
++ move.4 PT_FRAME_TYPE(sp), #0 ; invalidate frame_type
++
++#ifdef CONFIG_PROTECT_KERNEL
++ /*
++ * Enter critical section
++ */
++ atomic_lock_acquire
++ disable_kernel_ranges_for_current d15
++#endif
++ /*
++ * Lastly restore userspace stack ptr
++ *
++ * Note: that when protection is on we need to hold the lock around the
++ * stack swap as well because otherwise the protection could get
++ * inadvertently disabled again at the end of a context switch.
++ */
++ move.4 a7, PT_A7(sp) ; Restore A7 from kernel stack
++
++ /*
++ * We are now officially back in userspace!
++ */
++
++#ifdef CONFIG_PROTECT_KERNEL
++ /*
++ * Leave critical section and return to user space.
++ */
++ atomic_lock_release
++#endif
++ calli a5, 0(a5) ; Back to userspace code.
++
++ bkpt #-1 ; we will never get here
++
++ /*
++ * Post syscall processing. (unlikely part of syscall_exit)
++ *
++ * Are we tracing syscalls. If TIF_SYSCALL_TRACE is set, call
++ * syscall_trace routine and return here.
++ */
++.Lsyscall_exit__post_processing:
++ btst TI_FLAGS(a1), #ASM_TIF_SYSCALL_TRACE
++ jmpeq.t 1f
++ moveai a5, #%hi(syscall_trace)
++ calli a5, %lo(syscall_trace)(a5)
++
++ /*
++ * Do we need to resched ie call schedule. If TIF_NEED_RESCHED is set,
++ * call the scheduler, it will come back here.
++ */
++1: btst TI_FLAGS(a1), #ASM_TIF_NEED_RESCHED
++ jmpeq.t 2f
++ moveai a5, #%hi(schedule)
++ calli a5, %lo(schedule)(a5)
++
++ /*
++ * Do we need to post a signal, if TIF_SIGPENDING is set call the
++ * do_signal.
++ */
++2: btst TI_FLAGS(a1), #ASM_TIF_SIGPENDING
++ jmpeq.t .Lsyscall_exit__post_processing_complete
++
++ /*
++ * setup the do signal call
++ */
++ move.4 d0, #0 ; oldset pointer is NULL
++ lea.1 d1, (sp) ; d1 is the regs pointer.
++ moveai a5, #%hi(do_signal) ; Have to call do_signal
++ calli a5, %lo(do_signal)(a5)
++
++ jmpt.t .Lsyscall_exit__post_processing_complete
++
++ .size syscall_exit, . - syscall_exit
++
++/*
++ * kernel_execve()
++ * kernel_execv is called when we the kernel is starting a
++ * userspace application.
++ */
++ .section .kernel_unprotected
++ .global kernel_execve
++kernel_execve:
++ move.4 -4(sp)++, a5 ; Save return address
++ /*
++ * Call execve
++ */
++ movei d8, #__NR_execve ; call execve
++ moveai a3, #%hi(system_call)
++ calli a5, %lo(system_call)(a3)
++ move.4 a5, (sp)4++
++
++ /*
++ * protection was enabled again at syscall exit, but we want
++ * to return to kernel so we enable it again.
++ */
++#ifdef CONFIG_PROTECT_KERNEL
++ /*
++ * We are entering the kernel so we need to disable the protection.
++ * Enter critical section, disable ranges and leave critical section.
++ */
++ atomic_lock_acquire ; Enter critical section
++ enable_kernel_ranges_for_current d15
++ atomic_lock_release ; Leave critical section
++#endif
++ ret a5 ; jump back to the kernel
++
++ .size kernel_execve, . - kernel_execve
++
++/*
++ * signal_trampoline()
++ *
++ * Deals with transitioning from to userspace signal handlers and returning
++ * to userspace, only called from the kernel.
++ *
++ */
++ .section .kernel_unprotected
++ .global signal_trampoline
++signal_trampoline:
++ /*
++ * signal_trampoline is called when we are jumping from the kernel to
++ * the userspace signal handler.
++ *
++ * The following registers are relevant. (set setup_rt_frame)
++ * sp is the user space stack not the kernel stack
++ * d0 = signal number
++ * d1 = siginfo_t *
++ * d2 = ucontext *
++ * d3 = the user space signal handler
++ * a0 is set to the GOT if userspace application is FDPIC, otherwise 0
++ * a3 is set to the FD for the signal if userspace application is FDPIC
++ */
++#ifdef CONFIG_PROTECT_KERNEL
++ /*
++ * We are leaving the kernel so we need to enable the protection.
++ * Enter critical section, disable ranges and leave critical section.
++ */
++ atomic_lock_acquire ; Enter critical section
++ disable_kernel_ranges_for_current d15 ; disable kernel ranges
++ atomic_lock_release ; Leave critical section
++#endif
++ /*
++ * The signal handler pointer is in register d3 so tranfer it to a4 and
++ * call it
++ */
++ movea a4, d3 ; signal handler
++ calli a5, 0(a4)
++
++ /*
++ * Return to userspace through rt_syscall which is stored on top of the
++ * stack d1 contains ret_via_interrupt status.
++ */
++ move.4 d8, (sp) ; d8 (syscall #) = rt_syscall
++ move.4 d1, 4(sp) ; d1 = ret_via_interrupt
++ moveai a3, #%hi(system_call) ; call system_call
++ calli a5, %lo(system_call)(a3)
++
++ bkpt -1 ; will never get here.
++ .size signal_trampoline, . - signal_trampoline
++
++/*
++ * kernel_thread_helper()
++ *
++ * Entry point for kernel threads (only referenced by kernel_thread()).
++ *
++ * On execution d0 will be 0, d1 will be the argument to be passed to the
++ * kernel function.
++ * d2 contains the kernel function that needs to get called.
++ * d3 will contain address to do_exit which needs to get moved into a5.
++ *
++ * On return from fork the child thread d0 will be 0. We call this dummy
++ * function which in turn loads the argument
++ */
++ .section .kernel_unprotected
++ .global kernel_thread_helper
++kernel_thread_helper:
++ /*
++ * Create a kernel thread. This is called from ret_from_vfork (a
++ * userspace return routine) so we need to put it in an unprotected
++ * section and re-enable protection before calling the vector in d2.
++ */
++
++#ifdef CONFIG_PROTECT_KERNEL
++ /*
++ * We are entering the kernel so we need to disable the protection.
++ * Enter critical section, disable ranges and leave critical section.
++ */
++ atomic_lock_acquire ; Enter critical section
++ enable_kernel_ranges_for_current d0
++ atomic_lock_release ; Leave critical section
++#endif
++ /*
++ * Move argument for kernel function into d0, and set a5 return address
++ * (a5) to do_exit and return through a2
++ */
++ move.4 d0, d1 ; d0 = arg
++ move.4 a5, d3 ; a5 = do_exit
++ ret d2 ; call function ptr in d2
++
++ .size kernel_thread_helper, . - kernel_thread_helper
++
++/*
++ * execve_intercept()
++ */
++ .section .text
++ .global execve_intercept
++execve_intercept:
++ move.4 d3, sp ; Save retrun address
++ moveai a3, #%hi(sys_execve)
++ calli a3, %lo(sys_execve)(a3)
++
++ .size execve_intercept, . - execve_intercept
++
++/*
++ * vfork_intercept()
++ */
++ .section .text
++ .global vfork_intercept
++vfork_intercept:
++ move.4 d0, sp ; Save pt_regs address
++ moveai a3, #%hi(sys_vfork)
++ calli a3, %lo(sys_vfork)(a3)
++
++ .size vfork_intercept, . - vfork_intercept
++
++/*
++ * clone_intercept()
++ */
++ .section .text
++ .global clone_intercept
++clone_intercept:
++ move.4 d2, sp ; Save pt_regs address
++ moveai a3, #%hi(sys_clone)
++ calli a3, %lo(sys_clone)(a3)
++
++ .size clone_intercept, . - clone_intercept
++
++/*
++ * sys_sigsuspend()
++ */
++ .section .text
++ .global sys_sigsuspend
++sys_sigsuspend:
++ move.4 d0, sp ; Pass pointer to pt_regs in d0
++ moveai a3, #%hi(do_sigsuspend)
++ calli a3, %lo(do_sigsuspend)(a3)
++
++ .size sys_sigsuspend, . - sys_sigsuspend
++
++/*
++ * sys_rt_sigsuspend()
++ */
++ .section .text
++ .global sys_rt_sigsuspend
++sys_rt_sigsuspend:
++ move.4 d0, sp ; Pass pointer to pt_regs in d0
++ moveai a3, #%hi(do_rt_sigsuspend)
++ calli a3, %lo(do_rt_sigsuspend)(a3)
++
++ .size sys_rt_sigsuspend, . - sys_rt_sigsuspend
++
++/*
++ * sys_rt_sigreturn()
++ */
++ .section .text
++ .global sys_rt_sigreturn
++sys_rt_sigreturn:
++ move.4 d0, sp ; Pass pointer to pt_regs in d0
++ moveai a3, #%hi(do_rt_sigreturn)
++ calli a3, %lo(do_rt_sigreturn)(a3)
++
++ .size sys_rt_sigreturn, . - sys_rt_sigreturn
++
++/*
++ * sys_sigaltstack()
++ */
++ .section .text
++ .global sys_sigaltstack
++sys_sigaltstack:
++ move.4 d0, sp ; Pass pointer to pt_regs in d0
++ moveai a3, #%hi(do_sys_sigaltstack)
++ calli a3, %lo(do_sys_sigaltstack)(a3)
++
++ .size sys_sigaltstack, . - sys_sigaltstack
+--- /dev/null
++++ b/arch/ubicom32/kernel/unaligned_trap.c
+@@ -0,0 +1,698 @@
++/*
++ * arch/ubicom32/kernel/unaligned_trap.c
++ * Handle unaligned traps in both user or kernel space.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <asm/cacheflush.h>
++#include <asm/traps.h>
++
++#define FALSE 0
++#define TRUE 1
++
++/* no possible trap */
++#define UNUSED 0
++/* possible source operand trap */
++#define SRC 1
++#define SRC_2 2
++/* possible destination operand trap */
++#define DEST 3
++#define DEST_2 4
++/* can be either source or destination or both */
++#define TWO_OP 5
++#define TWO_OP_2 6
++
++/* TODO: What is the real value here, put something in to make it compile for
++ * now */
++#define MOVE_2 0x0d
++#define LSL_2 0x11
++#define LSR_2 0x13
++#define MOVEI 0x19
++#define CMPI 0x18
++
++static int op_format[32] =
++{
++ TWO_OP, /* 0x00 */
++ UNUSED,
++ SRC,
++ UNUSED,
++ TWO_OP, /* 0x04 */
++ TWO_OP,
++ SRC,
++ UNUSED,
++ TWO_OP_2, /* 0x08 */
++ TWO_OP,
++ TWO_OP_2,
++ TWO_OP,
++ TWO_OP_2, /* 0x0C */
++ TWO_OP,
++ TWO_OP_2,
++ TWO_OP,
++ TWO_OP, /* 0x10 */
++ TWO_OP_2,
++ TWO_OP,
++ TWO_OP,
++ UNUSED, /* 0x14 */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ SRC_2, /* 0x18 */
++ DEST_2,
++ UNUSED,
++ UNUSED,
++ UNUSED, /* 0x1C */
++ UNUSED,
++ UNUSED, /* unaligned CALLI will not be fixed. */
++ UNUSED
++};
++
++static int op_0_format[32] =
++{
++ UNUSED, /* 0x00 */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ UNUSED, /* 0x04 - ret don't fix - bad ret is always wrong */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ UNUSED, /* 0x08 */
++ UNUSED,
++ TWO_OP,
++ TWO_OP_2,
++ TWO_OP, /* 0x0c */
++ TWO_OP_2,
++ TWO_OP,
++ UNUSED, /* .1 can't trap */
++ UNUSED, /* 0x10 */
++ UNUSED,
++ SRC,
++ UNUSED,
++ UNUSED, /* 0x14 */
++ TWO_OP_2,
++ UNUSED,
++ UNUSED,
++ UNUSED, /* 0x18 */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ DEST, /* 0x1c */
++ DEST,
++ DEST,
++ DEST, /* all lea have 32-bit destination */
++};
++
++static int op_2_format[32] =
++{
++ UNUSED, /* 0x00 */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ UNUSED, /* 0x04 */
++ UNUSED,
++ SRC,
++ UNUSED,
++ UNUSED, /* 0x08 crcgen is .1 */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ UNUSED, /* 0x0c */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ SRC, /* 0x10 */
++ SRC_2,
++ SRC,
++ SRC_2,
++ SRC, /* 0x14 */
++ SRC_2,
++ SRC,
++ UNUSED,
++ UNUSED, /* 0x18 */
++ UNUSED,
++ SRC,
++ UNUSED,
++ SRC, /* 0x1c */
++ UNUSED,
++ SRC_2,
++ UNUSED,
++};
++
++static int op_6_format[32] =
++{
++ SRC_2, /* 0x00 */
++ SRC_2,
++ SRC_2,
++ SRC_2,
++ SRC_2, /* 0x04 */
++ SRC_2,
++ UNUSED,
++ SRC_2,
++ SRC, /* 0x08 MULS.4 */
++ SRC_2,
++ SRC,
++ UNUSED,
++ UNUSED, /* 0x0c */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ SRC, /* 0x10 */
++ SRC_2,
++ SRC,
++ SRC_2,
++ UNUSED, /* 0x14 */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ UNUSED, /* 0x18 */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++ UNUSED, /* 0x1c */
++ UNUSED,
++ UNUSED,
++ UNUSED,
++};
++
++/*
++ * unaligned_get_address()
++ * get an address using save_an and save_dn registers, and updates save_an
++ * with side effects
++ */
++unsigned char *unaligned_get_address(int thread, int specifier, int four_byte,
++ unsigned int save_an[],
++ unsigned int save_dn[], int *write_back_an)
++{
++ unsigned char *address;
++
++ int areg = (specifier >> 5) & 7;
++ if ((specifier >> 8) == 2) {
++ int offset = specifier & 0xf;
++ offset = ((offset << 28) >> 28);
++ if (likely(four_byte)) {
++ offset <<= 2;
++ } else {
++ offset <<= 1;
++ }
++ if (specifier & 0x10) {
++ address = (unsigned char *)(save_an[areg] + offset);
++ } else {
++ address = (unsigned char *)save_an[areg];
++ }
++ save_an[areg] = save_an[areg] + offset;
++
++ /*
++ * Let caller know An registers have been modified.
++ */
++ *write_back_an = 1;
++ } else if ((specifier >> 8) == 3) {
++ int dreg = specifier & 0xf;
++ if (likely(four_byte)) {
++ address = (unsigned char *)(save_an[areg] +
++ (save_dn[dreg] << 2));
++ } else {
++ address = (unsigned char *)(save_an[areg] +
++ (save_dn[dreg] << 1));
++ }
++ } else {
++ int offset = ((specifier >> 3) & 0x60) | (specifier & 0x1f);
++ if (likely(four_byte)) {
++ address = (unsigned char *)(save_an[areg] +
++ (offset << 2));
++ } else {
++ address = (unsigned char *)(save_an[areg] +
++ (offset << 1));
++ }
++ }
++
++ return address;
++}
++
++static int save_dn[16];
++static int save_an[8];
++static int save_acc[5];
++
++/*
++ * unaligned_emulate()
++ * emulate the instruction at thread's pc that has taken an unaligned data
++ * trap.
++ *
++ * source or destination or both might be unaligned
++ * the instruction must have a memory source or destination or both
++ * the emulated instruction is copied and executed in this thread
++ *
++ * TODO: Protection is handled outside of this function
++ * TODO: handling simultaneous unaligned and memory protection traps
++ *
++ * Get thread state
++ * the PC and instruction (and local copy, emulate_inst), and An
++ * and Dn registers
++ * All implicit soruce state (source3, CSR, accumulators)
++
++ * if the instruction has a memory source
++ * Use the instruction, An and Dn registers to form src_address
++ * get unaligned source data from src_address (usually sign
++ * extended)
++ * (2 bytes, with or without sign extension, or 4 bytes)
++ * modify emulate_inst to use d0 as source
++ * else
++ * get the soure operand from one of thread's registers
++ * if instruction has a memory destination
++ * Use the instruction, An and Dn registers to form dest_address
++ * modify emulate_inst to use d0 as destination
++ * if there was a memory source
++ * put the source data in thread's d0
++ * get the source-2 Dn operand and source 3 operand from thread
++ * execute modified inst
++ * (save it, flush caches, set up local values for implicit
++ * sources, execute, save explicit and implicit results)
++ * if inst has destination address
++ * copy result to dest_address, possibly unaligned, 1, 2, or 4
++ * bytes
++ * restore thread's implicit results (modified address registers, CSR,
++ * accumulators) add 4 to thread's pc
++ */
++void unaligned_emulate(unsigned int thread)
++{
++ unsigned int pc;
++ unsigned int inst;
++ unsigned int op;
++ unsigned int subop;
++ int format;
++ unsigned int emulate_inst;
++ int four_byte;
++ int src_operand, dest_operand;
++ int save_csr;
++ int source3;
++ unsigned int source1;
++ unsigned int source_data;
++ unsigned char *dest_address = NULL;
++ int source2 = 0;
++ unsigned int result;
++ unsigned int write_back_an = 0;
++ unsigned int chip_id_copy;
++
++ extern unsigned int trap_emulate;
++ extern unsigned int ubicom32_emulate_insn(int source1, int source2,
++ int source3, int *save_acc,
++ int *save_csr);
++
++ /*
++ * get the chip_id
++ */
++ asm volatile (
++ " move.4 %0, chip_id \n\t" /* get chip_id. */
++ : "=r"(chip_id_copy)
++ :
++ );
++
++ /*
++ * get the pc
++ */
++ asm volatile (
++ " move.4 CSR, %1 \n\t" /* set source thread in
++ * CSR */
++ " setcsr_flush 0 \n\t"
++ " move.4 %0, pc \n\t"
++ " move.4 CSR, #0 \n\t" /* restore CSR */
++ " setcsr_flush 0 \n\t"
++ : "=a"(pc)
++ : "d" ((1 << 8) | (thread << 9))
++ : "cc"
++ );
++
++ inst = *((unsigned int *)pc);
++ op = inst >> 27;
++ if (unlikely(op == 2 || op == 6)) {
++ subop = (inst >> 21) & 0x1f;
++ } else {
++ subop = (inst >> 11) & 0x1f;
++ }
++ format = op_format[op];
++ emulate_inst = inst;
++
++ if (op == 0) {
++ format = op_0_format[subop];
++ } else if (op == 2) {
++ format = op_2_format[subop];
++ } else if (op == 6) {
++ format = op_6_format[subop];
++ }
++
++ if (unlikely(format == UNUSED)) {
++ /*
++ * We are not going to emulate this. Bump PC by 4 and move on.
++ */
++ asm volatile (
++ " move.4 CSR, %0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " move.4 pc, %1 \n\t"
++ " setcsr #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ :
++ : "d"((1 << 14) | (thread << 15)), "d"(pc + 4)
++ : "cc"
++ );
++ return;
++ }
++
++ four_byte = (format == TWO_OP || format == DEST || format == SRC);
++
++ /*
++ * source or destination memory operand needs emulation
++ */
++ src_operand = (format == SRC ||
++ format == SRC_2 ||
++ format == TWO_OP ||
++ format == TWO_OP_2) &&
++ ((inst >> 8) & 7) > 1;
++
++ dest_operand = (format == DEST ||
++ format == DEST_2 ||
++ format == TWO_OP ||
++ format == TWO_OP_2) &&
++ ((inst >> 24) & 7) > 1;
++
++ /*
++ * get thread's implicit sources (not covered by source context select).
++ * data and address registers and CSR (for flag bits) and src3 and
++ * accumulators
++ */
++ asm volatile (
++ " move.4 CSR, %2 \n\t" /* set source thread in
++ * CSR */
++ " setcsr_flush 0 \n\t"
++ " move.4 (%3), d0 \n\t" /* get dn registers */
++ " move.4 4(%3), d1 \n\t"
++ " move.4 8(%3), d2 \n\t"
++ " move.4 12(%3), d3 \n\t"
++ " move.4 16(%3), d4 \n\t"
++ " move.4 20(%3), d5 \n\t"
++ " move.4 24(%3), d6 \n\t"
++ " move.4 28(%3), d7 \n\t"
++ " move.4 32(%3), d8 \n\t"
++ " move.4 36(%3), d9 \n\t"
++ " move.4 40(%3), d10 \n\t"
++ " move.4 44(%3), d11 \n\t"
++ " move.4 48(%3), d12 \n\t"
++ " move.4 52(%3), d13 \n\t"
++ " move.4 56(%3), d14 \n\t"
++ " move.4 60(%3), d15 \n\t"
++ " move.4 (%4), a0 \n\t" /* get an registers */
++ " move.4 4(%4), a1 \n\t"
++ " move.4 8(%4), a2 \n\t"
++ " move.4 12(%4), a3 \n\t"
++ " move.4 16(%4), a4 \n\t"
++ " move.4 20(%4), a5 \n\t"
++ " move.4 24(%4), a6 \n\t"
++ " move.4 28(%4), a7 \n\t"
++ " move.4 %0, CSR \n\t" /* get csr and source3
++ * implicit operands */
++ " move.4 %1, source3 \n\t"
++ " move.4 (%5), acc0_lo \n\t" /* get accumulators */
++ " move.4 4(%5), acc0_hi \n\t"
++ " move.4 8(%5), acc1_lo \n\t"
++ " move.4 12(%5), acc1_hi \n\t"
++ " move.4 16(%5), mac_rc16 \n\t"
++ " move.4 CSR, #0 \n\t" /* restore CSR */
++ " setcsr_flush 0 \n\t"
++ : "=m"(save_csr), "=m"(source3)
++ : "d"((1 << 8) | (thread << 9)),
++ "a"(save_dn), "a"(save_an), "a"(save_acc)
++ : "cc"
++ );
++
++ /*
++ * turn off thread select bits if they were on
++ */
++ BUG_ON((save_csr & 0x04100) != 0);
++ if (unlikely(save_csr & 0x04100)) {
++ /*
++ * Things are in funny state as thread select bits are on in
++ * csr. PANIC.
++ */
++ panic("In unaligned trap handler. Trap thread CSR has thread "
++ "select bits on.\n");
++ }
++
++ save_csr = save_csr & 0x1000ff;
++
++ /*
++ * get the source1 operand
++ */
++ source1 = 0;
++ if (src_operand) {
++ unsigned char *src_address;
++
++ /*
++ * source1 comes from memory
++ */
++ BUG_ON(!(format == TWO_OP || format == TWO_OP_2 ||
++ format == SRC || format == SRC_2));
++ src_address = unaligned_get_address(thread, inst & 0x7ff,
++ four_byte, save_an,
++ save_dn, &write_back_an);
++
++ /*
++ * get data (possibly unaligned)
++ */
++ if (likely(four_byte)) {
++ source_data = (*src_address << 24) |
++ (*(src_address + 1) << 16) |
++ (*(src_address + 2) << 8) |
++ *(src_address + 3);
++ source1 = source_data;
++ } else {
++ source1 = *src_address << 8 |
++ *(src_address + 1);
++
++ /*
++ * Source is not extended if the instrution is MOVE.2 or
++ * if the cpu CHIP_ID >= 0x30000 and the instruction is
++ * either LSL.2 or LSR.2. All other cases have to be
++ * sign extended.
++ */
++ if ((!(op == 2 && subop == MOVE_2)) &&
++ (!((chip_id_copy >= 0x30000) &&
++ (subop == LSL_2 || subop == LSR_2)))) {
++ /*
++ * Have to sign extend the .2 entry.
++ */
++ source1 = ((unsigned int)
++ ((signed int)
++ ((signed short) source1)));
++ }
++ }
++ } else if (likely(op != MOVEI)) {
++ /*
++ * source1 comes from a register, using move.4 d0, src1
++ * unaligned_emulate_get_source is pointer to code to insert remulated instruction
++ */
++ extern unsigned int unaligned_emulate_get_src;
++ *((int *)&unaligned_emulate_get_src) &= ~(0x7ff);
++ *((int *)&unaligned_emulate_get_src) |= (inst & 0x7ff);
++ flush_dcache_range((unsigned long)(&unaligned_emulate_get_src),
++ (unsigned long)(&unaligned_emulate_get_src) + 4);
++
++ asm volatile (
++ /* source1 uses thread's registers */
++ " move.4 CSR, %1 \n\t"
++ " setcsr_flush 0 \n\t"
++ "unaligned_emulate_get_src: \n\t"
++ " move.4 %0, #0 \n\t"
++ " setcsr #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ : "=d" (source1)
++ : "d" ((1 << 8) | (thread << 9))
++ : "cc"
++ );
++ }
++
++ /*
++ * get the destination address
++ */
++ if (dest_operand) {
++ BUG_ON(!(format == TWO_OP || format == TWO_OP_2 ||
++ format == DEST || format == DEST_2));
++ dest_address = unaligned_get_address(thread,
++ ((inst >> 16) & 0x7ff),
++ four_byte, save_an,
++ save_dn, &write_back_an);
++ }
++
++ if (write_back_an) {
++ /*
++ * restore any modified An registers
++ */
++ asm volatile (
++ " move.4 CSR, %0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " move.4 a0, (%1) \n\t"
++ " move.4 a1, 4(%1) \n\t"
++ " move.4 a2, 8(%1) \n\t"
++ " move.4 a3, 12(%1) \n\t"
++ " move.4 a4, 16(%1) \n\t"
++ " move.4 a5, 20(%1) \n\t"
++ " move.4 a6, 24(%1) \n\t"
++ " move.4 a7, 28(%1) \n\t"
++ " setcsr #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ :
++ : "d" ((1 << 14) | (thread << 15)), "a" (save_an)
++ : "cc"
++ );
++ }
++
++ /*
++ * get source 2 register if needed, and modify inst to use d1 for
++ * source-2 source-2 will come from this thread, not the trapping thread
++ */
++ source2 = 0;
++ if ((op >= 8 && op <= 0x17) ||
++ ((op == 2 || op == 6) && (inst & 0x4000000))) {
++ int src_dn = (inst >> 11) & 0xf;
++ source2 = save_dn[src_dn];
++ /*
++ * force the emulated instruction to use d1 for source2 operand
++ */
++ emulate_inst = (emulate_inst & 0xffff07ff) | 0x800;
++ }
++
++ if (likely(op != MOVEI)) {
++ /*
++ * change emulated instruction source1 to d0
++ */
++ emulate_inst &= ~0x7ff;
++ emulate_inst |= 1 << 8;
++ }
++
++ if (unlikely(op == 6 || op == 2)) {
++ /*
++ * Set destination to d0
++ */
++ emulate_inst &= ~(0xf << 16);
++ } else if (likely(op != CMPI)) {
++ /*
++ * Set general destination field to d0.
++ */
++ emulate_inst &= ~(0x7ff << 16);
++ emulate_inst |= 1 << 24;
++ }
++
++ /*
++ * execute emulated instruction d0, to d0, no memory access
++ * source2 if needed will be in d1
++ * source3, CSR, and accumulators are set up before execution
++ */
++ *((unsigned int *)&trap_emulate) = emulate_inst;
++ flush_dcache_range((unsigned long)(&trap_emulate),
++ (unsigned long)(&trap_emulate) + 4);
++
++ result = ubicom32_emulate_insn(source1, source2, source3,
++ save_acc, &save_csr);
++
++ /*
++ * set the result value
++ */
++ if (dest_operand) {
++ /*
++ * copy result to memory
++ */
++ if (four_byte) {
++ *dest_address++ =
++ (unsigned char)((result >> 24) & 0xff);
++ *dest_address++ =
++ (unsigned char)((result >> 16) & 0xff);
++ }
++ *dest_address++ = (unsigned char)((result >> 8) & 0xff);
++ *dest_address = (unsigned char)(result & 0xff);
++ } else if (likely(op != CMPI)) {
++ /*
++ * copy result to a register, using move.4 dest, result
++ */
++ extern unsigned int unaligned_trap_set_result;
++ *((unsigned int *)&unaligned_trap_set_result) &= ~0x7ff0000;
++
++ if (op == 2 || op == 6) {
++ *((unsigned int *)&unaligned_trap_set_result) |=
++ ((inst & 0x000f0000) | 0x01000000);
++ } else {
++ *((unsigned int *)&unaligned_trap_set_result) |=
++ (inst & 0x7ff0000);
++ }
++ flush_dcache_range((unsigned long)&unaligned_trap_set_result,
++ ((unsigned long)(&unaligned_trap_set_result) + 4));
++
++ asm volatile (
++ /* result uses thread's registers */
++ " move.4 CSR, %1 \n\t"
++ " setcsr_flush 0 \n\t"
++ "unaligned_trap_set_result: \n\t"
++ " move.4 #0, %0 \n\t"
++ " setcsr #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ :
++ : "d"(result), "d" ((1 << 14) | (thread << 15))
++ : "cc"
++ );
++ }
++
++ /*
++ * bump PC in thread and restore implicit register changes
++ */
++ asm volatile (
++ " move.4 CSR, %0 \n\t"
++ " setcsr_flush 0 \n\t"
++ " move.4 pc, %1 \n\t"
++ " move.4 acc0_lo, (%3) \n\t"
++ " move.4 acc0_hi, 4(%3) \n\t"
++ " move.4 acc1_lo, 8(%3) \n\t"
++ " move.4 acc1_hi, 12(%3) \n\t"
++ " move.4 mac_rc16, 16(%3) \n\t"
++ " move.4 CSR, %2 \n\t"
++ " setcsr #0 \n\t"
++ " setcsr_flush 0 \n\t"
++ :
++ : "d"((1 << 14) | (thread << 15)),
++ "d"(pc + 4), "d"(save_csr), "a"(save_acc)
++ : "cc"
++ );
++}
++
++/*
++ * unaligned_only()
++ * Return true if either of the unaligned causes are set (and no others).
++ */
++int unaligned_only(unsigned int cause)
++{
++ unsigned int unaligned_cause_mask =
++ (1 << TRAP_CAUSE_DST_MISALIGNED) |
++ (1 << TRAP_CAUSE_SRC1_MISALIGNED);
++
++ BUG_ON(cause == 0);
++ return (cause & unaligned_cause_mask) == cause;
++}
+--- /dev/null
++++ b/arch/ubicom32/kernel/vmlinux.lds.S
+@@ -0,0 +1,303 @@
++/*
++ * arch/ubicom32/kernel/vmlinux.lds.S
++ * vmlinux primary linker script
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <asm-generic/vmlinux.lds.h>
++#include <asm/ocm_size.h>
++#include <asm/thread_info.h>
++#include <linux/threads.h>
++
++/*
++ * Sanity checks to prevent errors later on that are much harder to understand
++ */
++#if !defined APP_OCM_CODE_SIZE
++#error APP_OCM_CODE_SIZE has not been defined in ocm_size.h
++#endif
++
++#if !defined APP_OCM_DATA_SIZE
++#error APP_OCM_DATA_SIZE has not been defined in ocm_size.h
++#endif
++
++/*
++ * XXX Should get these from a common header file, but <asm/ip5000.h> is a mess
++ * and can't be included by anything other than C code at the moment.
++ */
++/*
++ * Memory Size
++ */
++#define OCM_SECTOR_SIZE 0x00008000 /* 32K */
++
++#if defined(CONFIG_UBICOM32_V3)
++#define OCMSIZE 0x00030000 /* 192K on-chip RAM for both program and data */
++#elif defined(CONFIG_UBICOM32_V4)
++#define OCMSIZE 0x0003C000 /* 240K on-chip RAM for both program and data */
++#else
++#error "Unknown IP5K silicon"
++#endif
++
++#define OCMSTART 0x3ffc0000 /* alias from 0x03000000 for easy jump to/from SDRAM */
++#define OCMEND (OCMSTART + OCMSIZE)
++
++/*
++ * The `free' ocm area that ultra does not use.
++ */
++#if APP_OCM_CODE_SIZE || APP_OCM_DATA_SIZE
++#define OCM_FREE_START (OCMSTART + APP_OCM_CODE_SIZE)
++#define OCM_FREE_LENGTH (OCMSIZE - APP_OCM_CODE_SIZE - APP_OCM_DATA_SIZE)
++#else
++#define OCM_FREE_START OCMEND
++#define OCM_FREE_LENGTH 0
++#endif
++/*
++ * If you want to limit OCM use for text/data or completely disable it you can change these values.
++ */
++#define OCM_TEXT_LENGTH OCM_FREE_LENGTH
++#define OCM_DATA_LENGTH OCM_FREE_LENGTH
++
++#define RAM_START CONFIG_KERNELBASE
++#define RAM_LENGTH (CONFIG_RAMBASE + CONFIG_RAMSIZE - CONFIG_KERNELBASE)
++#define TEXT ram
++#define DATA ram
++#define INIT ram
++#define BSS ram
++
++#ifndef DATA_ADDR
++#define DATA_ADDR
++#endif
++
++OUTPUT_ARCH(ubicom32)
++ENTRY(_start)
++
++MEMORY {
++ ram : ORIGIN = RAM_START, LENGTH = RAM_LENGTH
++ ocm : ORIGIN = OCM_FREE_START, LENGTH = OCM_FREE_LENGTH
++}
++
++jiffies = jiffies_64 + 4;
++
++/*
++ * Fixed locations required by gdb coredumps.
++ *
++ * Note that the names are what gdb is expecting so renaming will break
++ * the toolchain.
++ */
++__ocm_begin = OCMSTART;
++__ocm_limit = __ocm_begin + OCMSIZE;
++__sdram_begin = CONFIG_RAMBASE;
++__sdram_limit = __sdram_begin + CONFIG_RAMSIZE;
++__filemedia_begin_addr = 0x60000000;
++__filemedia_end_addr = __filemedia_begin_addr + 0x00800000;
++
++SECTIONS {
++
++ .fixed_text : {
++ _begin = .;
++ *(.skip_syscall)
++ *(.syscall_entry.text)
++ *(.syscall_exit.text)
++ *(.ret_from_interrupt_to_user.text)
++ *(.ret_from_fork.text)
++ *(.kernel_unprotected)
++ __fixed_text_end = .;
++ } > TEXT
++ . = _begin + SIZEOF(.fixed_text) ;
++
++ __ocm_text_load_begin = .;
++ __ocm_text_run_begin = OCM_FREE_START ;
++ .ocm_text __ocm_text_run_begin : AT(__ocm_text_load_begin) {
++#if OCM_TEXT_LENGTH
++ *(.ocm_text)
++ *(.sched.text)
++ *(.spinlock.text)
++#include <asm/ocm_text.lds.inc>
++ . = ALIGN(4);
++#endif
++ __ocm_text_run_end = .;
++ __data_begin = ALIGN(OCM_SECTOR_SIZE);
++ } > ocm /* .ocm_text */
++
++ .ocm_module_text __ocm_text_run_end (NOLOAD) : AT(__ocm_text_run_end) {
++ __ocm_inst_heap_begin = .;
++ /* Reserve the min requested */
++ . += (CONFIG_OCM_MODULES_RESERVATION) * 1024;
++#ifdef CONFIG_OCM_MODULES_MAY_CONSUME_REMAINING_CODESPACE
++ /* Round up to OCM sector size (we cannot use it for data) */
++ . = ALIGN(OCM_SECTOR_SIZE);
++#endif
++ __ocm_inst_heap_end = .;
++ /* update __data_begin */
++ __data_begin = ALIGN(OCM_SECTOR_SIZE);
++ } > ocm /* .ocm_module_text */
++
++ . = __ocm_text_load_begin + __ocm_text_run_end - __ocm_text_run_begin ;
++ __ocm_text_load_end = .;
++
++ __ocm_data_load_begin = .;
++ __ocm_data_run_begin = __data_begin ;
++#if OCM_DATA_LENGTH
++ .ocm_data __ocm_data_run_begin : AT(__ocm_data_load_begin) {
++#if defined(CONFIG_IRQSTACKS_USEOCM)
++ percpu_irq_stacks = .;
++ . += NR_CPUS * THREAD_SIZE;
++#endif
++ *(.ocm_data)
++ . = ALIGN(4) ;
++ __ocm_data_run_end = .;
++ } > ocm
++ . = __ocm_data_load_begin + __ocm_data_run_end - __ocm_data_run_begin ;
++#else
++ __ocm_data_run_end = __ocm_data_run_begin;
++#endif
++ __ocm_data_load_end = .;
++
++ __ocm_free_begin = __ocm_data_run_end;
++ __ocm_free_end = OCM_FREE_START + OCM_FREE_LENGTH;
++
++ .text __ocm_data_load_end : AT(__ocm_data_load_end) {
++ . = ALIGN(4);
++ _stext = .;
++ _text = .;
++ TEXT_TEXT
++ SCHED_TEXT
++ LOCK_TEXT
++ *(.text.lock)
++ *(.text.__libgcc_udivmodsi)
++ *(.text.__libgcc_divmodsi)
++ *(.text.__libgcc_muldi3)
++ *(.text.__libgcc_udivmoddi)
++ *(.text.__libgcc_divmoddi)
++ *(.text.*)
++#if OCM_TEXT_LENGTH == 0
++ *(.ocm_text)
++ *(.sched.text)
++ *(.spinlock.text)
++#endif
++ . = ALIGN(16); /* Exception table */
++ __start___ex_table = .;
++ *(__ex_table)
++ __stop___ex_table = .;
++
++ } > TEXT
++
++ RO_DATA(16)
++
++ .rodata : {} > TEXT
++ .rodata1 : {} > TEXT
++ .pci_fixup : {} > TEXT
++ .builtin_fw : {} > TEXT
++ .rio_route : {} > TEXT
++ .tracedata : {} > TEXT
++ __ksymtab : {} > TEXT
++ __ksymtab_gpl : {} > TEXT
++ __ksymtab_gpl_future : {} > TEXT
++ __kcrctab_gpl : {} > TEXT
++ __kcrctab_unused : {} > TEXT
++ __kcrctab_unused_gpl : {} > TEXT
++ __kcrctab_gpl_future : {} > TEXT
++ __ksymtab_strings : {} > TEXT
++ __init_rodata : {} > TEXT
++ __param : {} > TEXT
++
++ _etext = .;
++
++ .data DATA_ADDR : {
++ . = ALIGN(4);
++ _sdata = . ;
++ DATA_DATA
++#if OCM_DATA_LENGTH == 0
++ *(.ocm_data)
++#endif
++ . = ALIGN(8192) ;
++ _data_protection_end = .;
++ *(.data.init_task)
++ . = ALIGN(4);
++ _edata = . ;
++ } > DATA
++
++ .init : {
++ . = ALIGN(4096);
++ __init_begin = .;
++ _sinittext = .;
++ INIT_TEXT
++ _einittext = .;
++ *(.init.rodata)
++ INIT_DATA
++ . = ALIGN(16);
++ __setup_start = .;
++ *(.init.setup)
++ __setup_end = .;
++ __initcall_start = .;
++ INITCALLS
++ __initcall_end = .;
++ __con_initcall_start = .;
++ *(.con_initcall.init)
++ __con_initcall_end = .;
++ ___security_initcall_start = .;
++ *(.security_initcall.init)
++ ___security_initcall_end = .;
++#ifdef CONFIG_BLK_DEV_INITRD
++ . = ALIGN(4);
++ __initramfs_start = .;
++ *(.init.ramfs)
++ __initramfs_end = .;
++#endif
++ . = ALIGN(4096);
++ __per_cpu_start = .;
++ *(.data.percpu)
++ *(.data.percpu.shared_aligned)
++ __per_cpu_end = .;
++
++ . = ALIGN(4096);
++ __init_end = .;
++ } > INIT
++
++ .eh_frame :
++ {
++ PROVIDE (___eh_frame_begin = .);
++ *(.eh_frame)
++ LONG (0);
++ PROVIDE (___eh_frame_end = .);
++ } > INIT
++
++ .bss : {
++ . = ALIGN(4);
++ _sbss = . ;
++ *(.bss)
++ *(COMMON)
++ . = ALIGN(4) ;
++ _ebss = . ;
++ _end = . ;
++ } > BSS
++
++ /DISCARD/ : {
++ EXIT_TEXT
++ EXIT_DATA
++ *(.exitcall.exit)
++ }
++
++ NOTES > BSS
++
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/checksum.c
+@@ -0,0 +1,250 @@
++/*
++ * arch/ubicom32/lib/checksum.c
++ * Optimized checksum utilities for IP.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++/*
++ * INET An implementation of the TCP/IP protocol suite for the LINUX
++ * operating system. INET is implemented using the BSD Socket
++ * interface as the means of communication with the user level.
++ *
++ * IP/TCP/UDP checksumming routines
++ *
++ * Authors: Jorge Cwik, <jorge@laser.satlink.net>
++ * Arnt Gulbrandsen, <agulbra@nvg.unit.no>
++ * Tom May, <ftom@netcom.com>
++ * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
++ * Lots of code moved from tcp.c and ip.c; see those files
++ * for more names.
++ *
++ * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek:
++ * Fixed some nasty bugs, causing some horrible crashes.
++ * A: At some points, the sum (%0) was used as
++ * length-counter instead of the length counter
++ * (%1). Thanks to Roman Hodek for pointing this out.
++ * B: GCC seems to mess up if one uses too many
++ * data-registers to hold input values and one tries to
++ * specify d0 and d1 as scratch registers. Letting gcc choose these
++ * registers itself solves the problem.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access kills, so most
++ of the assembly has to go. */
++
++#include <linux/module.h>
++#include <net/checksum.h>
++
++static unsigned long do_csum(const unsigned char * buff, int len)
++{
++ int count;
++ unsigned long result = 0;
++
++ /*
++ * The following optimized assembly code cannot handle data length less than 7 bytes!
++ */
++ if (likely(len >= 7)) {
++ len -= (4 - (int)buff) & 3;
++ count = len >> 2;
++ asm (
++ " sub.4 d15, #0, %2 \n\t" // set up for jump table
++ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
++
++ " bfextu d14, %0, #2 \n\t" // test 2 LSB of buff
++ " jmpne.w.f 100f \n\t"
++ " add.4 %1, #0, %1 \n\t" // clear C
++ " moveai a3, #%%hi(1f) \n\t" // table jump
++ " lea.1 a3, %%lo(1f)(a3) \n\t"
++ " lea.4 a3, (a3,d15) \n\t"
++ " calli a3, 0(a3) \n\t"
++
++ "100: sub.4 %0, %0, d14 \n\t"
++ " sub.4 d14, #4, d14 \n\t"
++ " lsl.4 d14, d14, #3 \n\t"
++ " add.4 %1, #0, %1 \n\t" // clear C
++ " moveai a3, #%%hi(1f) \n\t" // table jump
++ " lea.1 a3, %%lo(1f)(a3) \n\t"
++ " lea.4 a3, (a3,d15) \n\t"
++ " bfextu %1, (%0)4++, d14 \n\t" // read first partial word
++ " calli a3, 0(a3) \n\t"
++#if 1
++ "200: lsl.4 %3, %3, #3 \n\t"
++ " bfrvrs d15, (%0), #0 \n\t" // read last word (partial)
++ " bfextu d15, d15, %3 \n\t"
++ " bfrvrs d15, d15, #0 \n\t"
++ " add.4 %1, d15, %1 \n\t"
++ " addc %1, #0, %1 \n\t" // sample C again
++ " jmpt.w.t 2f \n\t"
++#else
++ "200: move.1 d15, 0(%0) \n\t"
++ " lsl.4 d15, d15, #8 \n\t"
++ " add.4 %1, d15, %1 \n\t"
++ " addc %1, #0, %1 \n\t" // sample C again
++ " add.4 %3, #-1, %3 \n\t"
++ " jmpeq.w.t 2f \n\t"
++
++ " move.1 d15, 1(%0) \n\t"
++ " add.4 %1, d15, %1 \n\t"
++ " addc %1, #0, %1 \n\t" // sample C again
++ " add.4 %3, #-1, %3 \n\t"
++ " jmpeq.w.t 2f \n\t"
++
++ " move.1 d15, 2(%0) \n\t"
++ " lsl.4 d15, d15, #8 \n\t"
++ " add.4 %1, d15, %1 \n\t"
++ " addc %1, #0, %1 \n\t" // sample C again
++ " jmpt.w.t 2f \n\t"
++#endif
++#if defined(IP7000) || defined(IP7000_REV2)
++ "300: swapb.2 %1, %1 \n\t"
++#else
++ "300: shmrg.2 %1, %1, %1 \n\t"
++ " lsr.4 %1, %1, #8 \n\t"
++ " bfextu %1, %1, #16 \n\t"
++#endif
++ " jmpt.w.t 3f \n\t"
++
++ "1: add.4 %1, (%0)4++, %1 \n\t" // first add without C
++ " .rept 31 \n\t"
++ " addc %1, (%0)4++, %1 \n\t"
++ " .endr \n\t"
++ " addc %1, #0, %1 \n\t" // sample C again
++ " add.4 %2, #-32, %2 \n\t"
++ " jmpgt.w.t 1b \n\t"
++
++ " and.4 %3, #3, %3 \n\t" // check n
++ " jmpne.w.f 200b \n\t"
++
++ "2: .rept 2 \n\t"
++ " lsr.4 d15, %1, #16 \n\t"
++ " bfextu %1, %1, #16 \n\t"
++ " add.4 %1, d15, %1 \n\t"
++ " .endr \n\t"
++ " btst d14, #3 \n\t" // start from odd address (<< 3)?
++ " jmpne.w.f 300b \n\t"
++ "3: \n\t"
++
++ : "+a"(buff), "+d"(result), "+d"(count), "+d"(len)
++ :
++ : "d15", "d14", "a3", "cc"
++ );
++
++ return result;
++ }
++
++ /*
++ * handle a few bytes and fold result into 16-bit
++ */
++ while (len-- > 0) {
++ result += (*buff++ << 8);
++ if (len) {
++ result += *buff++;
++ len--;
++ }
++ }
++ asm (
++ " .rept 2 \n\t"
++ " lsr.4 d15, %0, #16 \n\t"
++ " bfextu %0, %0, #16 \n\t"
++ " add.4 %0, d15, %0 \n\t"
++ " .endr \n\t"
++ : "+d" (result)
++ :
++ : "d15", "cc"
++ );
++
++ return result;
++}
++
++/*
++ * This is a version of ip_compute_csum() optimized for IP headers,
++ * which always checksum on 4 octet boundaries.
++ */
++__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
++{
++ return (__force __sum16)~do_csum(iph,ihl*4);
++}
++
++/*
++ * computes the checksum of a memory block at buff, length len,
++ * and adds in "sum" (32-bit)
++ *
++ * returns a 32-bit number suitable for feeding into itself
++ * or csum_tcpudp_magic
++ *
++ * this function must be called with even lengths, except
++ * for the last fragment, which may be odd
++ *
++ * it's best to have buff aligned on a 32-bit boundary
++ */
++__wsum csum_partial(const void *buff, int len, __wsum sum)
++{
++ unsigned int result = do_csum(buff, len);
++
++ /* add in old sum, and carry.. */
++ result += (__force u32)sum;
++ if ((__force u32)sum > result)
++ result += 1;
++ return (__force __wsum)result;
++}
++
++EXPORT_SYMBOL(csum_partial);
++
++/*
++ * this routine is used for miscellaneous IP-like checksums, mainly
++ * in icmp.c
++ */
++__sum16 ip_compute_csum(const void *buff, int len)
++{
++ return (__force __sum16)~do_csum(buff,len);
++}
++
++/*
++ * copy from fs while checksumming, otherwise like csum_partial
++ */
++
++__wsum
++csum_partial_copy_from_user(const void __user *src, void *dst,
++ int len, __wsum sum, int *csum_err)
++{
++ if (csum_err) *csum_err = 0;
++ memcpy(dst, (__force const void *)src, len);
++ return csum_partial(dst, len, sum);
++}
++
++/*
++ * copy from ds while checksumming, otherwise like csum_partial
++ */
++
++__wsum
++csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
++{
++ memcpy(dst, src, len);
++ return csum_partial(dst, len, sum);
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/delay.c
+@@ -0,0 +1,49 @@
++/*
++ * arch/ubicom32/lib/delay.c
++ * Ubicom32 implementation of udelay()
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <asm/param.h>
++#include <asm/delay.h>
++#include <asm/ip5000.h>
++
++/*
++ * read_current_timer()
++ * Return the current value of sysval.
++ */
++int __devinit read_current_timer(unsigned long *timer_val)
++{
++ *timer_val = (long)(UBICOM32_IO_TIMER->sysval);
++ return 0;
++}
++
++
++void udelay(unsigned long usecs)
++{
++ _udelay(usecs);
++}
++EXPORT_SYMBOL(udelay);
+--- /dev/null
++++ b/arch/ubicom32/lib/Makefile
+@@ -0,0 +1,32 @@
++#
++# arch/ubicom32/lib/Makefile
++# <TODO: Replace with short file description>
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++#
++# Makefile for m68knommu specific library files..
++#
++
++lib-y := checksum.o delay.o mem_ubicom32.o muldi3.o lshrdi3.o ashldi3.o ashrdi3.o divmod.o
+--- /dev/null
++++ b/arch/ubicom32/lib/mem_ubicom32.c
+@@ -0,0 +1,242 @@
++/*
++ * arch/ubicom32/lib/mem_ubicom32.c
++ * String functions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/compiler.h>
++
++#define LIKELY likely
++#define UNLIKELY unlikely
++
++typedef u32_t addr_t;
++
++/*
++ * memcpy()
++ */
++void *memcpy(void *dest, const void *src, size_t n)
++{
++ void *dest_ret = dest;
++
++ if (LIKELY((((addr_t)dest ^ (addr_t)src) & 3) == 0) && LIKELY(n > 6)) {
++ size_t m;
++ n -= (4 - (addr_t)dest) & 0x03;
++ m = n >> 2;
++ asm volatile (
++ " sub.4 d15, #0, %2 \n\t" // set up for jump table
++ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
++ " moveai a3, #%%hi(1f) \n\t"
++ " lea.1 a3, %%lo(1f)(a3) \n\t"
++ " lea.4 a3, (a3,d15) \n\t"
++
++ " bfextu d15, %0, #2 \n\t" // d15 = (dest & 3)
++ " jmpne.w.f 100f \n\t"
++ " calli a3, 0(a3) \n\t" // 4-byte alignment
++
++ "100: cmpi d15, #2 \n\t"
++ " jmpne.s.f 101f \n\t"
++ " move.2 (%0)2++, (%1)2++ \n\t"
++ " calli a3, 0(a3) \n\t" // 2-byte alignment
++
++ "101: move.1 (%0)1++, (%1)1++ \n\t"
++ " jmpgt.s.f 102f \n\t" // 3-byte alignment
++ " move.2 (%0)2++, (%1)2++ \n\t" // 1-byte alignment
++ "102: calli a3, 0(a3) \n\t"
++
++ "200: cmpi %3, #2 \n\t"
++ " jmplt.s.f 201f \n\t"
++ " move.2 (%0)2++, (%1)2++ \n\t"
++ " jmpeq.s.t 2f \n\t"
++ "201: move.1 (%0)1++, (%1)1++ \n\t"
++ " jmpt.w.t 2f \n\t"
++
++ "1: .rept 25 \n\t"
++ " movea (%0)4++, (%1)4++ \n\t"
++ " .endr \n\t"
++ " .rept 7 \n\t"
++ " move.4 (%0)4++, (%1)4++ \n\t"
++ " .endr \n\t"
++ " add.4 %2, #-32, %2 \n\t"
++ " jmpgt.w.f 1b \n\t"
++
++ " and.4 %3, #3, %3 \n\t" // check n
++ " jmpne.w.f 200b \n\t"
++ "2: \n\t"
++ : "+a" (dest), "+a" (src), "+d" (m), "+d" (n)
++ :
++ : "d15", "a3", "memory", "cc"
++ );
++
++ return dest_ret;
++ }
++
++ if (LIKELY((((addr_t)dest ^ (addr_t)src) & 1) == 0) && LIKELY(n > 2)) {
++ size_t m;
++ n -= (addr_t)dest & 0x01;
++ m = n >> 1;
++ asm volatile (
++ " sub.4 d15, #0, %2 \n\t" // set up for jump table
++ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
++ " moveai a3, #%%hi(1f) \n\t"
++ " lea.1 a3, %%lo(1f)(a3) \n\t"
++ " lea.4 a3, (a3,d15) \n\t"
++
++ " btst %0, #0 \n\t" // check bit 0
++ " jmpne.w.f 100f \n\t"
++ " calli a3, 0(a3) \n\t" // 4-byte alignment
++
++ "100: move.1 (%0)1++, (%1)1++ \n\t"
++ " calli a3, 0(a3) \n\t"
++
++ "200: move.1 (%0)1++, (%1)1++ \n\t"
++ " jmpt.w.t 2f \n\t"
++
++ "1: .rept 32 \n\t"
++ " move.2 (%0)2++, (%1)2++ \n\t"
++ " .endr \n\t"
++ " add.4 %2, #-32, %2 \n\t"
++ " jmpgt.w.f 1b \n\t"
++
++ " and.4 %3, #1, %3 \n\t" // check n
++ " jmpne.w.f 200b \n\t"
++ "2: \n\t"
++
++ : "+a" (dest), "+a" (src), "+d" (m), "+d" (n)
++ :
++ : "d15", "a3", "memory", "cc"
++ );
++
++ return dest_ret;
++ }
++
++ asm volatile (
++ " sub.4 d15, #0, %2 \n\t"
++ " jmpeq.w.f 2f \n\t"
++ " and.4 d15, #(16-1), d15 \n\t" // d15 = (-n) & (16 - 1)
++ " moveai a3, #%%hi(1f) \n\t"
++ " lea.1 a3, %%lo(1f)(a3) \n\t"
++ " lea.4 a3, (a3,d15) \n\t"
++ " calli a3, 0(a3) \n\t"
++
++ "1: .rept 16 \n\t"
++ " move.1 (%0)1++, (%1)1++ \n\t"
++ " .endr \n\t"
++ " add.4 %2, #-16, %2 \n\t"
++ " jmpgt.w.f 1b \n\t"
++ "2: \n\t"
++
++ : "+a" (dest), "+a" (src), "+d" (n)
++ :
++ : "d15", "a3", "memory", "cc"
++ );
++
++ return dest_ret;
++}
++
++/*
++ * memset()
++ */
++void *memset(void *s, int c, size_t n)
++{
++ void *s_ret = s;
++
++ if (LIKELY(n > 6)) {
++ size_t m;
++ n -= (4 - (addr_t)s) & 0x03;
++ m = n >> 2;
++ asm volatile (
++ " sub.4 d15, #0, %2 \n\t" // set up for jump table
++ " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
++ " shmrg.1 %1, %1, %1 \n\t"
++ " shmrg.2 %1, %1, %1 \n\t" // %1 = (c<<24)|(c<<16)|(c<<8)|c
++ " moveai a3, #%%hi(1f) \n\t"
++ " lea.1 a3, %%lo(1f)(a3) \n\t"
++ " lea.4 a3, (a3,d15) \n\t"
++
++ " bfextu d15, %0, #2 \n\t" // d15 = (s & 3)
++ " jmpne.w.f 100f \n\t"
++ " calli a3, 0(a3) \n\t" // 4-byte alignment
++
++ "100: cmpi d15, #2 \n\t"
++ " jmpne.s.f 101f \n\t"
++ " move.2 (%0)2++, %1 \n\t"
++ " calli a3, 0(a3) \n\t" // 2-byte alignment
++
++ "101: move.1 (%0)1++, %1 \n\t"
++ " jmpgt.s.f 102f \n\t" // 3-byte alignment
++ " move.2 (%0)2++, %1 \n\t" // 1-byte alignment
++ "102: calli a3, 0(a3) \n\t"
++
++ "200: cmpi %3, #2 \n\t"
++ " jmplt.s.f 201f \n\t"
++ " move.2 (%0)2++, %1 \n\t"
++ " jmpeq.s.t 2f \n\t"
++ "201: move.1 (%0)1++, %1 \n\t"
++ " jmpt.w.t 2f \n\t"
++
++ "1: .rept 25 \n\t"
++ " movea (%0)4++, %1 \n\t"
++ " .endr \n\t"
++ " .rept 7 \n\t"
++ " move.4 (%0)4++, %1 \n\t"
++ " .endr \n\t"
++ " add.4 %2, #-32, %2 \n\t"
++ " jmpgt.w.f 1b \n\t"
++
++ " and.4 %3, #3, %3 \n\t" // test bit 1 of n
++ " jmpne.w.f 200b \n\t"
++ "2: \n\t"
++
++ : "+a" (s), "+d" (c), "+d" (m), "+d" (n)
++ :
++ : "d15", "a3", "memory", "cc"
++ );
++
++ return s_ret;
++ }
++
++ asm volatile (
++ " sub.4 d15, #0, %2 \n\t"
++ " jmpeq.w.f 2f \n\t"
++ " and.4 d15, #(8-1), d15 \n\t" // d15 = (-%2) & (16 - 1)
++ " moveai a3, #%%hi(1f) \n\t"
++ " lea.1 a3, %%lo(1f)(a3) \n\t"
++ " lea.4 a3, (a3,d15) \n\t"
++ " calli a3, 0(a3) \n\t"
++
++ "1: .rept 8 \n\t"
++ " move.1 (%0)1++, %1 \n\t"
++ " .endr \n\t"
++ "2: \n\t"
++
++ : "+a" (s), "+d" (c), "+d" (n)
++ :
++ : "d15", "a3", "memory", "cc"
++ );
++
++ return s_ret;
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/audio_tio.c
+@@ -0,0 +1,115 @@
++/*
++ * arch/ubicom32/mach-common/audio_tio.c
++ * Generic initialization for Ubicom32 Audio
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/platform_device.h>
++#include <linux/types.h>
++
++#include <asm/devtree.h>
++#include <asm/audio_tio.h>
++#include <asm/ubi32-pcm.h>
++
++/*
++ * The number of audio_tio's currently allocated, used for .id
++ */
++static int __initdata audio_tio_count;
++
++/*
++ * The maximum number of resources that the audio_tio will have.
++ * Currently 3, a register space, and up to 2 interrupts.
++ */
++#define AUDIO_TIO_MAX_RESOURCES 3
++
++/*
++ * audio_tio_alloc
++ * Checks the device tree and allocates a platform_device if found
++ */
++struct platform_device * __init audio_tio_alloc(const char *driver_name,
++ const char *node_name, int priv_bytes)
++{
++ struct platform_device *pdev;
++ struct resource *res;
++ struct audiotionode *audio_node;
++ struct ubi32pcm_platform_data *pdata;
++
++ /*
++ * Check the device tree for the audio_tio
++ */
++ audio_node = (struct audiotionode *)devtree_find_node(node_name);
++ if (!audio_node) {
++ printk(KERN_WARNING "audio TIO '%s' found\n", node_name);
++ return NULL;
++ }
++
++ if (audio_node->version != AUDIOTIONODE_VERSION) {
++ printk(KERN_WARNING "audio_tio not compatible\n");
++ return NULL;
++ }
++
++ /*
++ * Dynamically create the platform_device structure and resources
++ */
++ pdev = kzalloc(sizeof(struct platform_device) +
++ sizeof(struct ubi32pcm_platform_data) +
++ priv_bytes , GFP_KERNEL);
++ if (!pdev) {
++ printk(KERN_WARNING "audio_tio could not alloc pdev\n");
++ return NULL;
++ }
++
++ res = kzalloc(sizeof(struct resource) * AUDIO_TIO_MAX_RESOURCES,
++ GFP_KERNEL);
++ if (!res) {
++ kfree(pdev);
++ printk(KERN_WARNING "audio_tio could not alloc res\n");
++ return NULL;
++ }
++
++ pdev->name = driver_name;
++ pdev->id = audio_tio_count++;
++ pdev->resource = res;
++
++ /*
++ * Fill in the resources and platform data from devtree information
++ */
++ res[0].start = (u32_t)(audio_node->regs);
++ res[0].end = (u32_t)(audio_node->regs);
++ res[0].flags = IORESOURCE_MEM;
++ res[1 + AUDIOTIO_TX_IRQ_RESOURCE].start = audio_node->dn.sendirq;
++ res[1 + AUDIOTIO_TX_IRQ_RESOURCE].flags = IORESOURCE_IRQ;
++ res[1 + AUDIOTIO_RX_IRQ_RESOURCE].start = audio_node->dn.recvirq;
++ res[1 + AUDIOTIO_RX_IRQ_RESOURCE].flags = IORESOURCE_IRQ;
++ pdev->num_resources = 3;
++
++ printk(KERN_INFO "AudioTIO.%d '%s' found irq=%d/%d regs=%p pdev=%p/%p\n",
++ audio_tio_count - 1, node_name, audio_node->dn.sendirq,
++ audio_node->dn.recvirq, audio_node->regs, pdev, res);
++ pdata = (struct ubi32pcm_platform_data *)(pdev + 1);
++ pdev->dev.platform_data = pdata;
++ pdata->node_name = node_name;
++ if (priv_bytes) {
++ pdata->priv_data = pdata + 1;
++ }
++
++ return pdev;
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mach-common/board.c
+@@ -0,0 +1,63 @@
++/*
++ * arch/ubicom32/mach-common/board.c
++ * Board init and support code.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/cpu.h>
++#include <asm/devtree.h>
++
++struct boardnode {
++ struct devtree_node dn;
++ const char *revision;
++};
++
++static const struct boardnode *bn;
++
++/*
++ * board_get_revision()
++ * Returns revision string of the board.
++ */
++const char *board_get_revision(void)
++{
++ if (!bn) {
++ return "NULL";
++ }
++
++ return bn->revision;
++}
++
++/*
++ * board_init
++ */
++void __init board_init(void)
++{
++ bn = (struct boardnode *)devtree_find_node("board");
++ if (!bn) {
++ printk(KERN_WARNING "board node not found\n");
++ return;
++ }
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/bootargs.c
+@@ -0,0 +1,63 @@
++/*
++ * arch/ubicom32/mach-common/bootargs.c
++ * Board init and support code.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/cpu.h>
++#include <asm/devtree.h>
++
++struct bootargsnode {
++ struct devtree_node dn;
++ const char cmdline[512];
++};
++
++static const struct bootargsnode *ban;
++
++/*
++ * bootargs_get_cmdline()
++ * Returns kernel boot arguments set by the bootloader.
++ */
++const char *bootargs_get_cmdline(void)
++{
++ if (!ban) {
++ return "";
++ }
++
++ return ban->cmdline;
++}
++
++/*
++ * bootargs_init
++ */
++void __init bootargs_init(void)
++{
++ ban = (struct bootargsnode *)devtree_find_node("bootargs");
++ if (!ban) {
++ printk(KERN_WARNING "bootargs node not found\n");
++ return;
++ }
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/cachectl.c
+@@ -0,0 +1,125 @@
++/*
++ * arch/ubicom32/mach-common/cachectl.c
++ * Architecture cache control support
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/module.h>
++#include <asm/cachectl.h>
++
++/*
++ * The write queue flush procedure in mem_cache_control needs to make
++ * DCACHE_WRITE_QUEUE_LENGTH writes to DDR (not OCM). Here we reserve some
++ * memory for this operation.
++ * Allocate array of cache lines of least DCACHE_WRITE_QUEUE_LENGTH + 1 words in
++ * length rounded up to the nearest cache line.
++ */
++#define CACHE_WRITE_QUEUE_FLUSH_AREA_SIZE \
++ ALIGN(sizeof(int) * (DCACHE_WRITE_QUEUE_LENGTH + 1), CACHE_LINE_SIZE)
++
++static char cache_write_queue_flush_area[CACHE_WRITE_QUEUE_FLUSH_AREA_SIZE]
++ __attribute__((aligned(CACHE_LINE_SIZE)));
++
++/*
++ * ONE_CCR_ADDR_OP is a helper macro that executes a single CCR operation.
++ */
++#define ONE_CCR_ADDR_OP(cc, op_addr, op) \
++ do { \
++ asm volatile ( \
++ " btst "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_VALID)" \n\t" \
++ " jmpne.f .-4 \n\t" \
++ " move.4 "D(CCR_ADDR)"(%0), %1 \n\t" \
++ " move.1 "D(CCR_CTRL+3)"(%0), %2 \n\t" \
++ " bset "D(CCR_CTRL)"(%0), "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_VALID)" \n\t" \
++ " cycles 2 \n\t" \
++ " btst "D(CCR_CTRL)"(%0), #"D(CCR_CTRL_DONE)" \n\t" \
++ " jmpeq.f .-4 \n\t" \
++ : \
++ : "a"(cc), "r"(op_addr), "r"(op & 0xff) \
++ : "cc" \
++ ); \
++ } while (0)
++
++/*
++ * mem_cache_control()
++ * Special cache control operation
++ */
++void mem_cache_control(unsigned long cc, unsigned long begin_addr,
++ unsigned long end_addr, unsigned long op)
++{
++ unsigned long op_addr;
++
++ if (cc == DCCR_BASE && op == CCR_CTRL_FLUSH_ADDR) {
++ /*
++ * We ensure all previous writes have left the data cache write
++ * queue by sending DCACHE_WRITE_QUEUE_LENGTH writes (to
++ * different words) down the queue. If this is not done it's
++ * possible that the data we are trying to flush hasn't even
++ * entered the data cache.
++ * The +1 ensure that the final 'flush' is actually a flush.
++ */
++ int *flush_area = (int *)cache_write_queue_flush_area;
++ asm volatile(
++ " .rept "D(DCACHE_WRITE_QUEUE_LENGTH + 1)" \n\t"
++ " move.4 (%0)4++, d0 \n\t"
++ " .endr \n\t"
++ : "+a"(flush_area)
++ );
++ }
++
++ /*
++ * Calculate the cache lines we need to operate on that include
++ * begin_addr though end_addr.
++ */
++ begin_addr = begin_addr & ~(CACHE_LINE_SIZE - 1);
++ end_addr = (end_addr + CACHE_LINE_SIZE - 1) & ~(CACHE_LINE_SIZE - 1);
++ op_addr = begin_addr;
++
++ do {
++ ONE_CCR_ADDR_OP(cc, op_addr, op);
++ op_addr += CACHE_LINE_SIZE;
++ } while (likely(op_addr < end_addr));
++
++ if (cc == DCCR_BASE && op == CCR_CTRL_FLUSH_ADDR) {
++ /*
++ * It turns out that when flushing the data cache the last flush
++ * isn't actually complete at this point. This is because there
++ * is another write buffer on the DDR side of the cache that is
++ * arbitrated with the I-Cache.
++ *
++ * The only foolproof method that ensures that the last data
++ * cache flush *actually* completed is to do another flush on a
++ * dirty cache line. This flush will block until the DDR write
++ * buffer is empty.
++ *
++ * Rather than creating a another dirty cache line, we use the
++ * flush_area above as we know that it is dirty from previous
++ * writes.
++ */
++ ONE_CCR_ADDR_OP(cc, cache_write_queue_flush_area, op);
++ }
++}
++EXPORT_SYMBOL(mem_cache_control);
+--- /dev/null
++++ b/arch/ubicom32/mach-common/common.c
+@@ -0,0 +1,64 @@
++/*
++ * arch/ubicom32/mach-common/common.c
++ * Common platform support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/version.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/list.h>
++#include <linux/errno.h>
++#include <linux/err.h>
++#include <linux/string.h>
++#include <linux/clk.h>
++#include <linux/mutex.h>
++#include <linux/platform_device.h>
++
++
++/* Minimum CLK support */
++
++struct clk *clk_get(struct device *dev, const char *id)
++{
++ return ERR_PTR(-ENOENT);
++}
++EXPORT_SYMBOL(clk_get);
++
++void clk_put(struct clk *clk)
++{
++}
++EXPORT_SYMBOL(clk_put);
++
++int clk_enable(struct clk *clk)
++{
++ return 0;
++}
++EXPORT_SYMBOL(clk_enable);
++
++
++void clk_disable(struct clk *clk)
++{
++}
++EXPORT_SYMBOL(clk_disable);
+--- /dev/null
++++ b/arch/ubicom32/mach-common/io.c
+@@ -0,0 +1,250 @@
++/*
++ * arch/ubicom32/mach-common/io.c
++ * PCI I/O memory read/write support functions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/io.h>
++
++#ifdef CONFIG_PCI
++unsigned char ioread8(void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ return ubi32_pci_read_u8(addr);
++ else
++ return (unsigned char)(*(volatile unsigned char *)addr);
++}
++EXPORT_SYMBOL(ioread8);
++
++unsigned short ioread16(void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ return ubi32_pci_read_u16(addr);
++ else
++ return (unsigned short)(*(volatile unsigned short *)addr);
++}
++EXPORT_SYMBOL(ioread16);
++
++unsigned int ioread32(void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ return ubi32_pci_read_u32(addr);
++ else
++ return (unsigned int)(*(volatile unsigned int *)addr);
++}
++EXPORT_SYMBOL(ioread32);
++
++void iowrite32(unsigned int val, void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ ubi32_pci_write_u32(val, addr);
++ else
++ *(volatile unsigned int *)addr = val;
++}
++EXPORT_SYMBOL(iowrite32);
++
++void iowrite16(unsigned short val, void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ ubi32_pci_write_u16(val, addr);
++ else
++ *(volatile unsigned short *)addr = val;
++}
++EXPORT_SYMBOL(iowrite16);
++
++void iowrite8(unsigned char val, void __iomem *addr)
++{
++ if (IS_PCI_ADDRESS(addr))
++ ubi32_pci_write_u8(val, addr);
++ else
++ *(volatile unsigned char *)addr = val;
++}
++EXPORT_SYMBOL(iowrite8);
++
++void memcpy_fromio(void *to, const volatile void __iomem *from, unsigned len)
++{
++ if (IS_PCI_ADDRESS(from)) {
++ if ((((u32_t)from & 0x3) == 0) && (((u32_t)to & 0x3) == 0)) {
++ while ((int)len >= 4) {
++ *(u32_t *)to = ubi32_pci_read_u32(from);
++ to += 4;
++ from += 4;
++ len -= 4;
++ }
++ } else if ((((u32_t)from & 0x1) == 0) &&
++ (((u32_t)to & 0x1) == 0)) {
++ while ((int)len >= 2) {
++ *(u16_t *)to = ubi32_pci_read_u16(from);
++ to += 2;
++ from += 2;
++ len -= 2;
++ }
++ }
++
++ while (len) {
++ *(u8_t *)to = ubi32_pci_read_u8(from);
++ to++;
++ from++;
++ len--;
++ }
++ } else
++ memcpy(to, (void *)from, len);
++}
++EXPORT_SYMBOL(memcpy_fromio);
++
++void memcpy_toio(volatile void __iomem *to, const void *from, unsigned len)
++{
++ if (IS_PCI_ADDRESS(to)) {
++ if ((((u32_t)from & 0x3) == 0) && (((u32_t)to & 0x3) == 0)) {
++ while ((int)len >= 4) {
++ ubi32_pci_write_u32(*(u32_t *)from, to);
++ to += 4;
++ from += 4;
++ len -= 4;
++ }
++ } else if ((((u32_t)from & 0x1) == 0) &&
++ (((u32_t)to & 0x1) == 0)) {
++ while ((int)len >= 2) {
++ ubi32_pci_write_u16(*(u16_t *)from, to);
++ to += 2;
++ from += 2;
++ len -= 2;
++ }
++ }
++
++ while (len) {
++ ubi32_pci_write_u8(*(u8_t *)from, to);
++ from++;
++ to++;
++ len--;
++ }
++ } else
++ memcpy((void *)to, from, len);
++
++}
++EXPORT_SYMBOL(memcpy_toio);
++
++void memset_io(volatile void __iomem *addr, int val, size_t len)
++{
++ if (IS_PCI_ADDRESS(addr)) {
++ while (len) {
++ ubi32_pci_write_u8((unsigned char)val, addr);
++ addr++;
++ len--;
++ }
++ } else
++ memset((void *)addr, val, len);
++
++}
++EXPORT_SYMBOL(memset_io);
++
++void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
++{
++ if (IS_PCI_ADDRESS(port)) {
++ while (count) {
++ *(u8_t *)buf = ioread8(port);
++ buf++;
++ count--;
++ }
++ } else {
++ insb((unsigned int)port, buf, count);
++ }
++
++}
++EXPORT_SYMBOL(ioread8_rep);
++
++void ioread16_rep(void __iomem *port, void *buf, unsigned long count)
++{
++ if (IS_PCI_ADDRESS(port)) {
++ while (count) {
++ *(u16_t *)buf = ioread16(port);
++ buf += 2;
++ count--;
++ }
++ } else {
++ insw((unsigned int)port, buf, count);
++ }
++}
++EXPORT_SYMBOL(ioread16_rep);
++
++void ioread32_rep(void __iomem *port, void *buf, unsigned long count)
++{
++ if (IS_PCI_ADDRESS(port)) {
++ while (count) {
++ *(u32_t *)buf = ioread32(port);
++ buf += 4;
++ count--;
++ }
++ } else {
++ insl((unsigned int)port, buf, count);
++ }
++}
++EXPORT_SYMBOL(ioread32_rep);
++
++void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count)
++{
++ if (IS_PCI_ADDRESS(port)) {
++ while (count) {
++ iowrite8(*(u8_t *)buf, port);
++ buf++;
++ count--;
++ }
++ } else {
++ outsb((unsigned int)port, buf, count);
++ }
++
++}
++EXPORT_SYMBOL(iowrite8_rep);
++
++void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count)
++{
++ if (IS_PCI_ADDRESS(port)) {
++ while (count) {
++ iowrite16(*(u16_t *)buf, port);
++ buf += 2;
++ count--;
++ }
++ } else {
++ outsw((unsigned int)port, buf, count);
++ }
++}
++EXPORT_SYMBOL(iowrite16_rep);
++
++void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count)
++{
++ if (IS_PCI_ADDRESS(port)) {
++ while (count) {
++ iowrite32(*(u32_t *)buf, port);
++ buf += 4;
++ count--;
++ }
++ } else {
++ outsl((unsigned int)port, buf, count);
++ }
++}
++EXPORT_SYMBOL(iowrite32_rep);
++
++#endif /* CONFIG_PCI */
+--- /dev/null
++++ b/arch/ubicom32/mach-common/Makefile
+@@ -0,0 +1,38 @@
++#
++# arch/ubicom32/mach-common/Makefile
++# Makefile for Ubicom32 generic drivers/code.
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++
++obj-y += cachectl.o common.o usb_tio.o usb.o ubi32-gpio.o board.o bootargs.o
++obj-$(CONFIG_PCI) += pci.o io.o
++
++obj-$(CONFIG_FB_UBICOM32) += vdc_tio.o
++obj-$(CONFIG_UBICOM_HID) += ubicom32hid.o
++obj-$(CONFIG_UBICOM_INPUT) += ubicom32input.o
++obj-$(CONFIG_UBICOM_INPUT_I2C) += ubicom32input_i2c.o
++obj-$(CONFIG_UIO_UBICOM32RING) += ring_tio.o
++obj-$(CONFIG_SND_UBI32) += audio_tio.o
++
+--- /dev/null
++++ b/arch/ubicom32/mach-common/pci.c
+@@ -0,0 +1,1157 @@
++/*
++ * arch/ubicom32/mach-common/pci.c
++ * PCI interface management.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/pci.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/io.h>
++#include <linux/seq_file.h>
++#include <linux/proc_fs.h>
++
++#include <asm/devtree.h>
++#include <asm/ip5000.h>
++#include <asm/ubicom32-common.h>
++
++static int debug_pci = 1 ;
++
++/* #define PCI_USE_INTERNAL_LOCK 1 */
++
++#ifdef PCI_USE_INTERNAL_LOCK
++#define PCI_LOCK(lock, irqflag) pci_lock_acquire(irqflag)
++#define PCI_UNLOCK(lock, irqflag) pci_lock_release(irqflag)
++#elif defined(CONFIG_SMP)
++static DEFINE_SPINLOCK(pci_master_lock);
++#define PCI_LOCK(lock, irqflag) spin_lock_irqsave(lock, irqflag)
++#define PCI_UNLOCK(lock, irqflag) spin_unlock_irqrestore(lock, irqflag)
++#else
++#define PCI_LOCK(lock, irqflag) local_irq_save(irqflag)
++#define PCI_UNLOCK(lock, irqflag) local_irq_restore(irqflag)
++#endif
++
++#define PCI_DEV0_IDSEL CONFIG_PCI_DEV0_IDSEL
++#define PCI_DEV1_IDSEL CONFIG_PCI_DEV1_IDSEL
++
++/*
++ * PCI commands
++ */
++#define PCI_CMD_INT_ACK 0x00 /* not supported */
++#define PCI_CMD_SPECIAL 0x01 /* not supported */
++#define PCI_CMD_IO_READ 0x02
++#define PCI_CMD_IO_WRITE 0x03
++#define PCI_CMD_MEM_READ 0x06
++#define PCI_CMD_MEM_WRITE 0x07
++#define PCI_CMD_CFG_READ 0x0a
++#define PCI_CMD_CFG_WRITE 0x0b
++#define PCI_CMD_MEM_READ_MULT 0x0c /* not supported */
++#define PCI_CMD_DUAL_ADDR 0x0d /* not supported */
++#define PCI_CMD_MEM_READ_LINE 0x0e /* not supported */
++#define PCI_CMD_MEM_WRITE_INVAL 0x0f /* not supported */
++/*
++ * Status codes, returned by pci_read_u32() and pci_write_u32()
++ */
++#define PCI_RESP_IN_PROGRESS 0xff /* request still in queue */
++#define PCI_RESP_OK 0
++/*
++ * The following codes indicate that the request has completed
++ */
++#define PCI_RESP_NO_DEVSEL 1 /* timeout before target asserted
++ * DEVSEL! */
++#define PCI_RESP_LOST_DEVSEL 2 /* had DEVSEL, but went away before
++ * transfer completed! */
++#define PCI_RESP_BAD_TRDY 3 /* target asserted TRDY without
++ * DEVSEL! */
++#define PCI_RESP_NO_TRDY 4 /* timeout before target asserted
++ * TRDY! */
++#define PCI_RESP_BAD_STOP 5 /* target asserted STOP and TRDY
++ * without DEVSEL! */
++#define PCI_RESP_TARGET_ABORT 6
++#define PCI_RESP_TARGET_RETRY 7
++#define PCI_RESP_TARGET_DISCONNECT 8
++#define PCI_RESP_MISMATCH 9 /* data read back doesn't match data
++ * written - debug only, the core PCI
++ * routines never return this */
++#define PCI_RESP_DET_SERR 10
++#define PCI_RESP_DET_PERR 11
++#define PCI_RESP_MALFORMED_REQ 12 /* Could be due to misaligned
++ * requests or invalid address */
++#define PCI_RESP_NO_RESOURCE 13 /* Could be memory or other resourse
++ * like queue space */
++#define PCI_RESP_ERROR 14 /* All emcompassing error */
++
++/* registers in PCI config space */
++#define PCI_DEVICE_VENDOR_ID_REG 0x00
++#define PCI_STATUS_COMMAND_REG 0x04
++#define PCI_CLASS_REVISION_REG 0x08
++#define PCI_BHLC_REG 0x0c /* BIST, Header type, Latency
++ * timer, Cache line size */
++#define PCI_BASE_ADDR_REG 0x10
++#define PCI_BASE_REG_COUNT 6
++#define CARDBUS_CIS_PTR_REG 0x28
++#define PCI_SUB_SYSTEM_ID_REG 0x2c
++#define PCI_EXP_ROM_ADDR_REG 0x30
++#define PCI_CAP_PTR_REG 0x34
++#define PCI_LGPL_REG 0x3C /* max Latency, min Gnt, interrupt
++ * Pin, interrupt Line */
++
++struct pci_master_request {
++ volatile u32_t pci_address; /* must be 4-byte aligned */
++ volatile u32_t data; /* must be 4-byte aligned */
++ volatile u8_t cmd;
++ volatile u8_t byte_valid;
++ volatile u8_t status;
++};
++
++struct pci_devnode {
++ struct devtree_node dn;
++ u32_t pci_idsel_0;
++ u32_t pci_idsel_1;
++ u32_t pci_cpu_address;
++ struct pci_master_request volatile *volatile req;
++};
++
++static struct pci_master_request req; /* globally used for faster master write
++ * (discarding result when possible) */
++static struct pci_devnode *pci_node;
++
++#if !defined(CONFIG_DEBUG_PCIMEASURE)
++#define PCI_DECLARE_MEASUREMENT
++#define PCI_MEASUREMENT_START()
++#define PCI_MEASUREMENT_END(idx)
++#else
++#define PCI_DECLARE_MEASUREMENT \
++ int __diff; \
++ unsigned int __tstart;
++
++#define PCI_MEASUREMENT_START() \
++ __tstart = UBICOM32_IO_TIMER->sysval;
++
++#define PCI_MEASUREMENT_END(idx) \
++ __diff = (int)UBICOM32_IO_TIMER->sysval - (int)__tstart; \
++ pci_measurement_update((idx), __diff);
++
++#define PCI_WEIGHT 32
++
++struct pci_measurement {
++ volatile unsigned int min;
++ volatile unsigned int avg;
++ volatile unsigned int max;
++};
++
++enum pci_measurement_list {
++ PCI_MEASUREMENT_READ32,
++ PCI_MEASUREMENT_WRITE32,
++ PCI_MEASUREMENT_READ16,
++ PCI_MEASUREMENT_WRITE16,
++ PCI_MEASUREMENT_READ8,
++ PCI_MEASUREMENT_WRITE8,
++ PCI_MEASUREMENT_LAST,
++};
++
++static const char *pci_measurement_name_list[PCI_MEASUREMENT_LAST] = {
++ "READ32",
++ "WRITE32",
++ "READ16",
++ "WRITE16",
++ "READ8",
++ "WRITE8"
++};
++static struct pci_measurement pci_measurements[PCI_MEASUREMENT_LAST];
++
++/*
++ * pci_measurement_update()
++ * Update an entry in the measurement array for this idx.
++ */
++static void pci_measurement_update(int idx, int sample)
++{
++ struct pci_measurement *pm = &pci_measurements[idx];
++ if ((pm->min == 0) || (pm->min > sample)) {
++ pm->min = sample;
++ }
++ if (pm->max < sample) {
++ pm->max = sample;
++ }
++ pm->avg = ((pm->avg * (PCI_WEIGHT - 1)) + sample) / PCI_WEIGHT;
++}
++#endif
++
++#if defined(PCI_USE_INTERNAL_LOCK)
++/*
++ * pci_lock_release()
++ * Release the PCI lock.
++ */
++static void pci_lock_release(unsigned long irqflag)
++{
++ UBICOM32_UNLOCK(PCI_LOCK_BIT);
++}
++
++/*
++ * pci_lock_acquire()
++ * Acquire the PCI lock, spin if not available.
++ */
++static void pci_lock_acquire(unsigned long irqflag)
++{
++ UBICOM32_LOCK(PCI_LOCK_BIT);
++}
++#endif
++
++/*
++ * pci_set_hrt_interrupt()
++ */
++static inline void pci_set_hrt_interrupt(struct pci_devnode *pci_node)
++{
++ ubicom32_set_interrupt(pci_node->dn.sendirq);
++}
++
++/*
++ * pci_read_u32()
++ * Synchronously read 32 bits from PCI space.
++ */
++u8 pci_read_u32(u8 pci_cmd, u32 address, u32 *data)
++{
++ u8 status;
++ unsigned long irqflag;
++
++
++ /*
++ * Fill in the request.
++ */
++ volatile struct pci_master_request lreq;
++ PCI_DECLARE_MEASUREMENT;
++
++ lreq.pci_address = address;
++ lreq.cmd = pci_cmd;
++ lreq.byte_valid = 0xf; /* enable all bytes */
++
++ /*
++ * Wait for any previous request to complete and then make this request.
++ */
++ PCI_MEASUREMENT_START();
++ PCI_LOCK(&pci_master_lock, irqflag);
++ while (unlikely(pci_node->req == &req))
++ ;
++ pci_node->req = &lreq;
++ pci_set_hrt_interrupt(pci_node);
++ PCI_UNLOCK(&pci_master_lock, irqflag);
++
++ /*
++ * Wait for the result to show up.
++ */
++ while (unlikely(pci_node->req == &lreq))
++ ;
++ status = lreq.status;
++ if (likely(status == PCI_RESP_OK))
++ *data = le32_to_cpu(lreq.data);
++ else
++ *data = 0;
++ PCI_MEASUREMENT_END(PCI_MEASUREMENT_READ32);
++ return status;
++}
++
++/*
++ * pci_write_u32()
++ * Asyncrhnously or synchronously write 32 bits to PCI master space.
++ */
++u8 pci_write_u32(u8 pci_cmd, u32 address, u32 data)
++{
++ unsigned long irqflag;
++ PCI_DECLARE_MEASUREMENT;
++
++ /*
++ * Wait for any previous write or pending read to complete.
++ *
++ * We use a global data block because once we write the request
++ * we do not wait for it to complete before exiting.
++ */
++ PCI_MEASUREMENT_START();
++ PCI_LOCK(&pci_master_lock, irqflag);
++ while (unlikely(pci_node->req == &req))
++ ;
++ req.pci_address = address;
++ req.data = cpu_to_le32(data);
++ req.cmd = pci_cmd;
++ req.byte_valid = 0xf; /* enable all bytes */
++ pci_node->req = &req;
++ pci_set_hrt_interrupt(pci_node);
++ PCI_UNLOCK(&pci_master_lock, irqflag);
++ PCI_MEASUREMENT_END(PCI_MEASUREMENT_WRITE32);
++ return PCI_RESP_OK;
++}
++
++/*
++ * pci_read_u16()
++ * Synchronously read 16 bits from PCI space.
++ */
++u8 pci_read_u16(u8 pci_cmd, u32 address, u16 *data)
++{
++ u8 status;
++ unsigned long irqflag;
++
++ /*
++ * Fill in the request.
++ */
++ volatile struct pci_master_request lreq;
++ PCI_DECLARE_MEASUREMENT;
++
++ lreq.pci_address = address & ~2;
++ lreq.cmd = pci_cmd;
++ lreq.byte_valid = (address & 2) ? 0xc : 0x3;
++
++ /*
++ * Wait for any previous request to complete and then make this request.
++ */
++ PCI_MEASUREMENT_START();
++ PCI_LOCK(&pci_master_lock, irqflag);
++ while (unlikely(pci_node->req == &req))
++ ;
++ pci_node->req = &lreq;
++ pci_set_hrt_interrupt(pci_node);
++ PCI_UNLOCK(&pci_master_lock, irqflag);
++
++ /*
++ * Wait for the result to show up.
++ */
++ while (unlikely(pci_node->req == &lreq))
++ ;
++ status = lreq.status;
++ if (likely(status == PCI_RESP_OK)) {
++ lreq.data = le32_to_cpu(lreq.data);
++ *data = (u16)((address & 2) ? (lreq.data >> 16) : lreq.data);
++ } else
++ *data = 0;
++ PCI_MEASUREMENT_END(PCI_MEASUREMENT_READ16);
++ return status;
++}
++
++/*
++ * pci_write_u16()
++ * Asyncrhnously or synchronously write 16 bits to PCI master space.
++ */
++u8 pci_write_u16(u8 pci_cmd, u32 address, u16 data)
++{
++ unsigned long irqflag;
++ PCI_DECLARE_MEASUREMENT;
++
++ /*
++ * Wait for any previous write or pending read to complete.
++ *
++ * We use a global data block because once we write the request
++ * we do not wait for it to complete before exiting.
++ */
++ PCI_MEASUREMENT_START();
++ PCI_LOCK(&pci_master_lock, irqflag);
++ while (unlikely(pci_node->req == &req))
++ ;
++ req.pci_address = address & ~2;
++ req.data = (u32)data;
++ req.data = cpu_to_le32((address & 2) ? (req.data << 16) : req.data);
++ req.cmd = pci_cmd;
++ req.byte_valid = (address & 2) ? 0xc : 0x3;
++ pci_node->req = &req;
++ pci_set_hrt_interrupt(pci_node);
++ PCI_UNLOCK(&pci_master_lock, irqflag);
++ PCI_MEASUREMENT_END(PCI_MEASUREMENT_WRITE16);
++ return PCI_RESP_OK;
++}
++
++/*
++ * pci_read_u8()
++ * Synchronously read 8 bits from PCI space.
++ */
++u8 pci_read_u8(u8 pci_cmd, u32 address, u8 *data)
++{
++ u8 status;
++ unsigned long irqflag;
++
++ /*
++ * Fill in the request.
++ */
++ volatile struct pci_master_request lreq;
++ PCI_DECLARE_MEASUREMENT;
++
++ lreq.pci_address = address & ~3;
++ lreq.cmd = pci_cmd;
++ lreq.byte_valid = 1 << (address & 0x3);
++
++ /*
++ * Wait for any previous request to complete and then make this request.
++ */
++ PCI_MEASUREMENT_START();
++ PCI_LOCK(&pci_master_lock, irqflag);
++ while (unlikely(pci_node->req == &req))
++ ;
++ pci_node->req = &lreq;
++ pci_set_hrt_interrupt(pci_node);
++ PCI_UNLOCK(&pci_master_lock, irqflag);
++
++ /*
++ * Wait for the result to show up.
++ */
++ while (unlikely(pci_node->req == &lreq))
++ ;
++ status = lreq.status;
++ if (likely(status == PCI_RESP_OK)) {
++ *data = (u8)(lreq.data >> (24 - ((address & 0x3) << 3)));
++ } else
++ *data = 0;
++ PCI_MEASUREMENT_END(PCI_MEASUREMENT_READ8);
++ return status;
++}
++
++/*
++ * pci_write_u8()
++ * Asyncrhnously or synchronously write 8 bits to PCI master space.
++ */
++u8 pci_write_u8(u8 pci_cmd, u32 address, u8 data)
++{
++ unsigned long irqflag;
++ PCI_DECLARE_MEASUREMENT;
++
++ /*
++ * Wait for any previous write or pending read to complete.
++ *
++ * We use a global data block because once we write the request
++ * we do not wait for it to complete before exiting.
++ */
++ PCI_MEASUREMENT_START();
++ PCI_LOCK(&pci_master_lock, irqflag);
++ while (unlikely(pci_node->req == &req))
++ ;
++ req.pci_address = address & ~3;
++ req.data = ((u32)data << (24 - ((address & 0x3) << 3)));
++ req.cmd = pci_cmd;
++ req.byte_valid = 1 << (address & 0x3);
++ pci_node->req = &req;
++ pci_set_hrt_interrupt(pci_node);
++ PCI_UNLOCK(&pci_master_lock, irqflag);
++ PCI_MEASUREMENT_END(PCI_MEASUREMENT_WRITE8);
++ return PCI_RESP_OK;
++}
++
++unsigned int ubi32_pci_read_u32(const volatile void __iomem *addr)
++{
++ unsigned int data;
++ pci_read_u32(PCI_CMD_MEM_READ, (u32)addr, &data);
++ return data;
++}
++EXPORT_SYMBOL(ubi32_pci_read_u32);
++
++unsigned short ubi32_pci_read_u16(const volatile void __iomem *addr)
++{
++ unsigned short data;
++ pci_read_u16(PCI_CMD_MEM_READ, (u32)addr, &data);
++ return data;
++}
++EXPORT_SYMBOL(ubi32_pci_read_u16);
++
++unsigned char ubi32_pci_read_u8(const volatile void __iomem *addr)
++{
++ unsigned char data;
++ pci_read_u8(PCI_CMD_MEM_READ, (u32)addr, &data);
++ return data;
++}
++EXPORT_SYMBOL(ubi32_pci_read_u8);
++
++void ubi32_pci_write_u32(unsigned int val, const volatile void __iomem *addr)
++{
++ pci_write_u32(PCI_CMD_MEM_WRITE, (u32)addr, val);
++}
++EXPORT_SYMBOL(ubi32_pci_write_u32);
++
++void ubi32_pci_write_u16(unsigned short val, const volatile void __iomem *addr)
++{
++ pci_write_u16(PCI_CMD_MEM_WRITE, (u32)addr, val);
++}
++EXPORT_SYMBOL(ubi32_pci_write_u16);
++
++void ubi32_pci_write_u8(unsigned char val, const void volatile __iomem *addr)
++{
++ pci_write_u8(PCI_CMD_MEM_WRITE, (u32)addr, val);
++}
++EXPORT_SYMBOL(ubi32_pci_write_u8);
++
++#if defined(CONFIG_DEBUG_PCIMEASURE)
++static unsigned int pci_cycles_to_nano(unsigned int cycles, unsigned int frequency)
++{
++ unsigned int nano = ((cycles * 1000) / (frequency / 1000000));
++ return nano;
++}
++
++/*
++ * pci_measurement_show()
++ * Print out the min, avg, max values for each PCI transaction type.
++ *
++ * By request, the max value is reset after each dump.
++ */
++static int pci_measurement_show(struct seq_file *p, void *v)
++{
++ unsigned int min, avg, max;
++ unsigned int freq = processor_frequency();
++ int trans = *((loff_t *) v);
++
++ if (trans == 0) {
++ seq_puts(p, "min\tavg\tmax\t(nano-seconds)\n");
++ }
++
++ if (trans >= PCI_MEASUREMENT_LAST) {
++ return 0;
++ }
++
++ min = pci_cycles_to_nano(pci_measurements[trans].min, freq);
++ avg = pci_cycles_to_nano(pci_measurements[trans].avg, freq);
++ max = pci_cycles_to_nano(pci_measurements[trans].max, freq);
++ pci_measurements[trans].max = 0;
++ seq_printf(p, "%u\t%u\t%u\t%s\n", min, avg, max, pci_measurement_name_list[trans]);
++ return 0;
++}
++
++static void *pci_measurement_start(struct seq_file *f, loff_t *pos)
++{
++ return (*pos < PCI_MEASUREMENT_LAST) ? pos : NULL;
++}
++
++static void *pci_measurement_next(struct seq_file *f, void *v, loff_t *pos)
++{
++ (*pos)++;
++ if (*pos >= PCI_MEASUREMENT_LAST)
++ return NULL;
++ return pos;
++}
++
++static void pci_measurement_stop(struct seq_file *f, void *v)
++{
++ /* Nothing to do */
++}
++
++static const struct seq_operations pci_measurement_seq_ops = {
++ .start = pci_measurement_start,
++ .next = pci_measurement_next,
++ .stop = pci_measurement_stop,
++ .show = pci_measurement_show,
++};
++
++static int pci_measurement_open(struct inode *inode, struct file *filp)
++{
++ return seq_open(filp, &pci_measurement_seq_ops);
++}
++
++static const struct file_operations pci_measurement_fops = {
++ .open = pci_measurement_open,
++ .read = seq_read,
++ .llseek = seq_lseek,
++ .release = seq_release,
++};
++
++static int __init pci_measurement_init(void)
++{
++ proc_create("pci_measurements", 0, NULL, &pci_measurement_fops);
++ return 0;
++}
++module_init(pci_measurement_init);
++#endif
++
++static int ubi32_pci_read_config(struct pci_bus *bus, unsigned int devfn,
++ int where, int size, u32 *value)
++{
++ u8 cmd;
++ u32 addr;
++ u8 data8;
++ u16 data16;
++
++ u8 slot = PCI_SLOT(devfn);
++ u8 fn = PCI_FUNC(devfn);
++
++ if (slot > 1) {
++ return PCIBIOS_DEVICE_NOT_FOUND;
++ } else if (slot == 0) {
++ addr = PCI_DEV0_IDSEL + where;
++ } else {
++ addr = PCI_DEV1_IDSEL + where;
++ }
++
++ addr += (fn << 8);
++
++ cmd = PCI_CMD_CFG_READ;
++ if (size == 1) {
++ pci_read_u8(cmd, addr, &data8);
++ *value = (u32)data8;
++ } else if (size == 2) {
++ pci_read_u16(cmd, addr, &data16);
++ *value = (u32)data16;
++ } else {
++ pci_read_u32(cmd, addr, value);
++ }
++
++ return PCIBIOS_SUCCESSFUL;
++}
++
++static int ubi32_pci_write_config(struct pci_bus *bus, unsigned int devfn,
++ int where, int size, u32 value)
++{
++ u8 cmd;
++ u32 addr;
++ u8 slot = PCI_SLOT(devfn);
++ u8 fn = PCI_FUNC(devfn);
++
++ if (slot > 1) {
++ return PCIBIOS_DEVICE_NOT_FOUND;
++ } else if (slot == 0) {
++ addr = PCI_DEV0_IDSEL + where;
++ } else {
++ addr = PCI_DEV1_IDSEL + where;
++ }
++
++ addr += (fn << 8);
++
++ cmd = PCI_CMD_CFG_WRITE;
++ if (size == 1) {
++ pci_write_u8(cmd, addr, (u8)value);
++ } else if (size == 2) {
++ pci_write_u16(cmd, addr, (u16)value);
++ } else {
++ pci_write_u32(cmd, addr, value);
++ }
++
++ return PCIBIOS_SUCCESSFUL;
++}
++
++int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size)
++{
++ return -EIO;
++}
++EXPORT_SYMBOL(pci_set_dma_max_seg_size);
++
++int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask)
++{
++ return -EIO;
++}
++EXPORT_SYMBOL(pci_set_dma_seg_boundary);
++
++void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
++{
++ resource_size_t start = pci_resource_start(dev, bar);
++ resource_size_t len = pci_resource_len(dev, bar);
++ unsigned long flags = pci_resource_flags(dev, bar);
++
++ if (!len || !start) {
++ return NULL;
++ }
++
++ if (maxlen && len > maxlen) {
++ len = maxlen;
++ }
++
++ if (flags & IORESOURCE_IO) {
++ return ioport_map(start, len);
++ }
++
++ if (flags & IORESOURCE_MEM) {
++ if (flags & IORESOURCE_CACHEABLE) {
++ return ioremap(start, len);
++ }
++ return ioremap_nocache(start, len);
++ }
++ return NULL;
++}
++EXPORT_SYMBOL(pci_iomap);
++
++void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
++{
++ if ((unsigned long)addr >= VMALLOC_START &&
++ (unsigned long)addr < VMALLOC_END) {
++ iounmap(addr);
++ }
++}
++EXPORT_SYMBOL(pci_iounmap);
++
++/*
++ * From arch/arm/kernel/bios32.c
++ *
++ * PCI bios-type initialisation for PCI machines
++ *
++ * Bits taken from various places.
++ */
++static void __init pcibios_init_hw(struct hw_pci *hw)
++{
++ struct pci_sys_data *sys = NULL;
++ int ret;
++ int nr, busnr;
++
++ for (nr = busnr = 0; nr < hw->nr_controllers; nr++) {
++ sys = kzalloc(sizeof(struct pci_sys_data), GFP_KERNEL);
++ if (!sys)
++ panic("PCI: unable to allocate sys data!");
++
++ sys->hw = hw;
++ sys->busnr = busnr;
++ sys->map_irq = hw->map_irq;
++ sys->resource[0] = &ioport_resource;
++ sys->resource[1] = &iomem_resource;
++
++ ret = hw->setup(nr, sys);
++
++ if (ret > 0) {
++ sys->bus = hw->scan(nr, sys);
++
++ if (!sys->bus)
++ panic("PCI: unable to scan bus!");
++
++ busnr = sys->bus->subordinate + 1;
++
++ list_add(&sys->node, &hw->buses);
++ } else {
++ kfree(sys);
++ if (ret < 0)
++ break;
++ }
++ }
++}
++
++/*
++ * Swizzle the device pin each time we cross a bridge.
++ * This might update pin and returns the slot number.
++ */
++static u8 __devinit pcibios_swizzle(struct pci_dev *dev, u8 *pin)
++{
++ struct pci_sys_data *sys = dev->sysdata;
++ int slot = 0, oldpin = *pin;
++
++ if (sys->swizzle)
++ slot = sys->swizzle(dev, pin);
++
++ if (debug_pci)
++ printk("PCI: %s swizzling pin %d => pin %d slot %d\n",
++ pci_name(dev), oldpin, *pin, slot);
++ return slot;
++}
++
++/*
++ * Map a slot/pin to an IRQ.
++ */
++static int pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++ struct pci_sys_data *sys = dev->sysdata;
++ int irq = -1;
++
++ if (sys->map_irq)
++ irq = sys->map_irq(dev, slot, pin);
++
++ if (debug_pci)
++ printk("PCI: %s mapping slot %d pin %d => irq %d\n",
++ pci_name(dev), slot, pin, irq);
++
++ return irq;
++}
++
++void __init pci_common_init(struct hw_pci *hw)
++{
++ struct pci_sys_data *sys;
++
++ INIT_LIST_HEAD(&hw->buses);
++
++ if (hw->preinit)
++ hw->preinit();
++ pcibios_init_hw(hw);
++ if (hw->postinit)
++ hw->postinit();
++
++ pci_fixup_irqs(pcibios_swizzle, pcibios_map_irq);
++ list_for_each_entry(sys, &hw->buses, node) {
++ struct pci_bus *bus = sys->bus;
++ /*
++ * Size the bridge windows.
++ */
++ pci_bus_size_bridges(bus);
++ /*
++ * Assign resources.
++ */
++ pci_bus_assign_resources(bus);
++
++ /*
++ * Tell drivers about devices found.
++ */
++ pci_bus_add_devices(bus);
++ }
++}
++
++char * __init pcibios_setup(char *str)
++{
++ if (!strcmp(str, "debug")) {
++ debug_pci = 1;
++ return NULL;
++ }
++ return str;
++}
++
++/*
++ * From arch/i386/kernel/pci-i386.c:
++ *
++ * We need to avoid collisions with `mirrored' VGA ports
++ * and other strange ISA hardware, so we always want the
++ * addresses to be allocated in the 0x000-0x0ff region
++ * modulo 0x400.
++ *
++ * Why? Because some silly external IO cards only decode
++ * the low 10 bits of the IO address. The 0x00-0xff region
++ * is reserved for motherboard devices that decode all 16
++ * bits, so it's ok to allocate at, say, 0x2800-0x28ff,
++ * but we want to try to avoid allocating at 0x2900-0x2bff
++ * which might be mirrored at 0x0100-0x03ff..
++ */
++void pcibios_align_resource(void *data, struct resource *res,
++ resource_size_t size, resource_size_t align)
++{
++ resource_size_t start = res->start;
++
++ if (res->flags & IORESOURCE_IO && start & 0x300)
++ start = (start + 0x3ff) & ~0x3ff;
++
++ res->start = (start + align - 1) & ~(align - 1);
++}
++
++
++void __devinit pcibios_update_irq(struct pci_dev *dev, int irq)
++{
++ if (debug_pci)
++ printk("PCI: Assigning IRQ %02d to %s\n", irq, pci_name(dev));
++ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
++}
++
++/*
++ * If the bus contains any of these devices, then we must not turn on
++ * parity checking of any kind. Currently this is CyberPro 20x0 only.
++ */
++static inline int pdev_bad_for_parity(struct pci_dev *dev)
++{
++ return (dev->vendor == PCI_VENDOR_ID_INTERG &&
++ (dev->device == PCI_DEVICE_ID_INTERG_2000 ||
++ dev->device == PCI_DEVICE_ID_INTERG_2010)) ||
++ (dev->vendor == PCI_VENDOR_ID_ITE &&
++ dev->device == PCI_DEVICE_ID_ITE_8152);
++
++}
++
++/*
++ * Adjust the device resources from bus-centric to Linux-centric.
++ */
++static void __devinit
++pdev_fixup_device_resources(struct pci_sys_data *root, struct pci_dev *dev)
++{
++ resource_size_t offset;
++ int i;
++
++ for (i = 0; i < PCI_NUM_RESOURCES; i++) {
++ if (dev->resource[i].start == 0)
++ continue;
++ if (dev->resource[i].flags & IORESOURCE_MEM)
++ offset = root->mem_offset;
++ else
++ offset = root->io_offset;
++
++ dev->resource[i].start += offset;
++ dev->resource[i].end += offset;
++ }
++}
++
++static void __devinit
++pbus_assign_bus_resources(struct pci_bus *bus, struct pci_sys_data *root)
++{
++ struct pci_dev *dev = bus->self;
++ int i;
++
++ if (!dev) {
++ /*
++ * Assign root bus resources.
++ */
++ for (i = 0; i < 3; i++)
++ bus->resource[i] = root->resource[i];
++ }
++}
++
++/*
++ * pcibios_fixup_bus - Called after each bus is probed,
++ * but before its children are examined.
++ */
++void pcibios_fixup_bus(struct pci_bus *bus)
++{
++ struct pci_sys_data *root = bus->sysdata;
++ struct pci_dev *dev;
++ u16 features = PCI_COMMAND_SERR | PCI_COMMAND_PARITY |
++ PCI_COMMAND_FAST_BACK;
++
++ pbus_assign_bus_resources(bus, root);
++
++ /*
++ * Walk the devices on this bus, working out what we can
++ * and can't support.
++ */
++ list_for_each_entry(dev, &bus->devices, bus_list) {
++ u16 status;
++
++ pdev_fixup_device_resources(root, dev);
++
++ pci_read_config_word(dev, PCI_STATUS, &status);
++
++ /*
++ * If any device on this bus does not support fast back
++ * to back transfers, then the bus as a whole is not able
++ * to support them. Having fast back to back transfers
++ * on saves us one PCI cycle per transaction.
++ */
++ if (!(status & PCI_STATUS_FAST_BACK))
++ features &= ~PCI_COMMAND_FAST_BACK;
++
++ if (pdev_bad_for_parity(dev))
++ features &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
++
++ switch (dev->class >> 8) {
++ case PCI_CLASS_BRIDGE_PCI:
++ pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &status);
++ status |= PCI_BRIDGE_CTL_PARITY |
++ PCI_BRIDGE_CTL_MASTER_ABORT;
++ status &= ~(PCI_BRIDGE_CTL_BUS_RESET |
++ PCI_BRIDGE_CTL_FAST_BACK);
++ pci_write_config_word(dev, PCI_BRIDGE_CONTROL, status);
++ break;
++
++ case PCI_CLASS_BRIDGE_CARDBUS:
++ pci_read_config_word(dev, PCI_CB_BRIDGE_CONTROL,
++ &status);
++ status |= PCI_CB_BRIDGE_CTL_PARITY |
++ PCI_CB_BRIDGE_CTL_MASTER_ABORT;
++ pci_write_config_word(dev, PCI_CB_BRIDGE_CONTROL,
++ status);
++ break;
++ }
++ }
++
++ /*
++ * Now walk the devices again, this time setting them up.
++ */
++ list_for_each_entry(dev, &bus->devices, bus_list) {
++ u16 cmd;
++
++ pci_read_config_word(dev, PCI_COMMAND, &cmd);
++ cmd |= features;
++ pci_write_config_word(dev, PCI_COMMAND, cmd);
++
++ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
++ L1_CACHE_BYTES >> 2);
++ }
++
++ /*
++ * Propagate the flags to the PCI bridge.
++ */
++ if (bus->self && bus->self->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
++ if (features & PCI_COMMAND_FAST_BACK)
++ bus->bridge_ctl |= PCI_BRIDGE_CTL_FAST_BACK;
++ if (features & PCI_COMMAND_PARITY)
++ bus->bridge_ctl |= PCI_BRIDGE_CTL_PARITY;
++ }
++
++ /*
++ * Report what we did for this bus
++ */
++ printk(KERN_INFO "PCI: bus%d: Fast back to back transfers %sabled\n",
++ bus->number, (features & PCI_COMMAND_FAST_BACK) ? "en" : "dis");
++}
++/*
++ * Convert from Linux-centric to bus-centric addresses for bridge devices.
++ */
++void
++pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
++ struct resource *res)
++{
++ struct pci_sys_data *root = dev->sysdata;
++ unsigned long offset = 0;
++
++ if (res->flags & IORESOURCE_IO)
++ offset = root->io_offset;
++ if (res->flags & IORESOURCE_MEM)
++ offset = root->mem_offset;
++
++ region->start = res->start - offset;
++ region->end = res->end - offset;
++}
++
++void __devinit
++pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
++ struct pci_bus_region *region)
++{
++ struct pci_sys_data *root = dev->sysdata;
++ unsigned long offset = 0;
++
++ if (res->flags & IORESOURCE_IO)
++ offset = root->io_offset;
++ if (res->flags & IORESOURCE_MEM)
++ offset = root->mem_offset;
++
++ res->start = region->start + offset;
++ res->end = region->end + offset;
++}
++
++#ifdef CONFIG_HOTPLUG
++EXPORT_SYMBOL(pcibios_fixup_bus);
++EXPORT_SYMBOL(pcibios_resource_to_bus);
++EXPORT_SYMBOL(pcibios_bus_to_resource);
++#endif
++
++/**
++ * pcibios_enable_device - Enable I/O and memory.
++ * @dev: PCI device to be enabled
++ */
++int pcibios_enable_device(struct pci_dev *dev, int mask)
++{
++ u16 cmd, old_cmd;
++ int idx;
++ struct resource *r;
++
++ pci_read_config_word(dev, PCI_COMMAND, &cmd);
++ old_cmd = cmd;
++ for (idx = 0; idx < 6; idx++) {
++ /* Only set up the requested stuff */
++ if (!(mask & (1 << idx)))
++ continue;
++
++ r = dev->resource + idx;
++ if (!r->start && r->end) {
++ printk(KERN_ERR "PCI: Device %s not available because"
++ " of resource collisions\n", pci_name(dev));
++ return -EINVAL;
++ }
++ if (r->flags & IORESOURCE_IO)
++ cmd |= PCI_COMMAND_IO;
++ if (r->flags & IORESOURCE_MEM)
++ cmd |= PCI_COMMAND_MEMORY;
++ }
++
++ /*
++ * Bridges (eg, cardbus bridges) need to be fully enabled
++ */
++ if ((dev->class >> 16) == PCI_BASE_CLASS_BRIDGE)
++ cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
++
++ if (cmd != old_cmd) {
++ printk("PCI: enabling device %s (%04x -> %04x)\n",
++ pci_name(dev), old_cmd, cmd);
++ pci_write_config_word(dev, PCI_COMMAND, cmd);
++ }
++ return 0;
++}
++
++
++struct pci_ops ubi32_pci_ops = {
++ .read = ubi32_pci_read_config,
++ .write = ubi32_pci_write_config,
++};
++
++static struct pci_bus *ubi32_pci_scan_bus(int nr, struct pci_sys_data *sys)
++{
++ return pci_scan_bus(sys->busnr, &ubi32_pci_ops, sys);
++}
++
++#define UBI32_PCI_MEM_BASE PCI_DEV_REG_BASE
++#define UBI32_PCI_MEM_LEN 0x80000000
++
++#define UBI32_PCI_IO_BASE 0x0
++#define UBI32_PCI_IO_END 0x0
++
++static struct resource ubi32_pci_mem = {
++ .name = "PCI memory space",
++ .start = UBI32_PCI_MEM_BASE,
++ .end = UBI32_PCI_MEM_BASE + UBI32_PCI_MEM_LEN - 1,
++ .flags = IORESOURCE_MEM,
++};
++
++static struct resource ubi32_pci_io = {
++ .name = "PCI IO space",
++ .start = UBI32_PCI_IO_BASE,
++ .end = UBI32_PCI_IO_END,
++ .flags = IORESOURCE_IO,
++};
++
++static int __init ubi32_pci_setup(int nr, struct pci_sys_data *sys)
++{
++ if (nr > 0)
++ return 0;
++
++ request_resource(&iomem_resource, &ubi32_pci_mem);
++ request_resource(&ioport_resource, &ubi32_pci_io);
++
++ sys->resource[0] = &ubi32_pci_io;
++ sys->resource[1] = &ubi32_pci_mem;
++ sys->resource[2] = NULL;
++
++ return 1;
++}
++
++static void __init ubi32_pci_preinit(void)
++{
++}
++
++static int __init ubi32_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
++{
++ return pci_node->dn.recvirq;
++}
++
++struct hw_pci ubi32_pci __initdata = {
++ .nr_controllers = 1,
++ .preinit = ubi32_pci_preinit,
++ .setup = ubi32_pci_setup,
++ .scan = ubi32_pci_scan_bus,
++ .map_irq = ubi32_pci_map_irq,
++};
++
++static int __init ubi32_pci_init(void)
++{
++ pci_node = (struct pci_devnode *)devtree_find_node("pci");
++ if (pci_node == NULL) {
++ printk(KERN_WARNING "PCI init failed\n");
++ return -ENOSYS;
++ }
++ pci_common_init(&ubi32_pci);
++ return 0;
++}
++
++subsys_initcall(ubi32_pci_init);
++
++/*
++ * workaround for dual PCI card interrupt
++ */
++#define PCI_COMMON_INT_BIT (1 << 19)
++void ubi32_pci_int_wr(void)
++{
++ volatile unsigned int pci_int_line;
++ pci_int_line = UBICOM32_IO_PORT(RB)->gpio_in;
++ if (!(pci_int_line & PCI_COMMON_INT_BIT))
++ {
++ ubicom32_set_interrupt(pci_node->dn.recvirq);
++ }
++}
++EXPORT_SYMBOL(ubi32_pci_int_wr);
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ring_tio.c
+@@ -0,0 +1,123 @@
++/*
++ * arch/ubicom32/mach-common/ring_tio.c
++ * Generic initialization for UIO Ubicom32 Ring
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/platform_device.h>
++#include <linux/types.h>
++
++#include <asm/devtree.h>
++#include <asm/ring_tio.h>
++
++static const char *ring_tio_driver_name = "uio_ubicom32ring";
++
++/*
++ * The number of ring_tio's currently allocated, used for .id
++ */
++static int __initdata ring_tio_count;
++
++/*
++ * The maximum number of resources that the ring_tio will have.
++ * Currently 3, a register space, and up to 2 interrupts.
++ */
++#define RING_TIO_MAX_RESOURCES 3
++
++/*
++ * ring_tio_init
++ * Checks the device tree and instantiates the driver if found
++ */
++void __init ring_tio_init(const char *node_name)
++{
++ struct platform_device *pdev;
++ struct resource *res;
++ int resource_idx = 0;
++ struct ring_tio_node *ring_node;
++
++ /*
++ * Check the device tree for the ring_tio
++ */
++ ring_node = (struct ring_tio_node *)devtree_find_node(node_name);
++ if (!ring_node) {
++ printk(KERN_WARNING "Ring TIO '%s' not found\n", node_name);
++ return;
++ }
++
++ if (ring_node->version != RING_TIO_NODE_VERSION) {
++ printk(KERN_WARNING "ring_tio not compatible\n");
++ return;
++ }
++
++ /*
++ * Dynamically create the platform_device structure and resources
++ */
++ pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL);
++ if (!pdev) {
++ printk(KERN_WARNING "ring_tio could not alloc pdev\n");
++ return;
++ }
++
++ res = kzalloc(sizeof(struct resource) * RING_TIO_MAX_RESOURCES,
++ GFP_KERNEL);
++ if (!res) {
++ kfree(pdev);
++ printk(KERN_WARNING "ring_tio could not alloc res\n");
++ return;
++ }
++
++ pdev->name = ring_tio_driver_name;
++ pdev->id = ring_tio_count++;
++ pdev->resource = res;
++
++ /*
++ * Fill in the resources and platform data from devtree information
++ */
++ res[resource_idx].start = (u32_t)(ring_node->regs);
++ res[resource_idx].end = (u32_t)(ring_node->regs);
++ res[resource_idx].flags = IORESOURCE_MEM;
++ resource_idx++;
++
++ if (ring_node->dn.sendirq != 0xFF) {
++ res[resource_idx].start = ring_node->dn.sendirq;
++ res[resource_idx].flags = IORESOURCE_IRQ;
++ resource_idx++;
++ }
++
++ if (ring_node->dn.recvirq != 0xFF) {
++ res[resource_idx].start = ring_node->dn.recvirq;
++ res[resource_idx].flags = IORESOURCE_IRQ;
++ resource_idx++;
++ }
++ pdev->num_resources = resource_idx;
++
++ printk(KERN_INFO "RingTIO.%d '%s' found irq=%d/%d regs=%p pdev=%p/%p\n",
++ ring_tio_count - 1, node_name, ring_node->dn.sendirq,
++ ring_node->dn.recvirq, ring_node->regs, pdev, res);
++
++ /*
++ * Try to get the device registered
++ */
++ pdev->dev.platform_data = (void *)node_name;
++ if (platform_device_register(pdev) < 0) {
++ printk(KERN_WARNING "Ring failed to register\n");
++ kfree(pdev);
++ kfree(res);
++ }
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ubi32-gpio.c
+@@ -0,0 +1,411 @@
++/*
++ * arch/ubicom32/mach-common/ubi32-gpio.c
++ * Ubicom gpio driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/errno.h>
++#include <linux/kernel.h>
++#include <linux/io.h>
++#include <linux/gpio.h>
++#include <linux/irq.h>
++#include <linux/version.h>
++
++#if defined(CONFIG_PROC_FS)
++#include <linux/proc_fs.h>
++#endif
++
++#include <linux/io.h>
++#include <asm/ip5000.h>
++#include <linux/gpio.h>
++
++#define UBI_GPIO_CHECK_RANGE 0 /* !0 enables range checking */
++
++
++/*
++ * Each I/O port can be configured to operate in one of several
++ * functional modes. One of these modes is GPIO, which causes the
++ * entire port to function as a GPIO port. Since the various port
++ * registers serve the system with other important functions, such as
++ * ethernet, serial, USB, etc., it isn't advantageous to set any of
++ * the ports to be entirely dedicated for GPIO use. The processor
++ * alternatively allows individual bits of a port to be assigned to be
++ * used as GPIO independently from the overall port function. This
++ * bit-by-bit assignment is selected by setting the corresponding bit
++ * in the port's gpio_mask register. When set, the selected bit is
++ * then enabled as a GPIO. If the corresponding bit is set in the
++ * gpio_ctl register of the port, the bit is configured as a GPIO
++ * output. Otherwise, it is an input.
++ *
++ * NOTE: This driver uses the bit-by-bit GPIO function assignment
++ * exclusively and *never* sets the port function registers to the
++ * GPIO function.
++ *
++ * GPIO is not the main function of any of the I/O ports. The port
++ * bit widths are variable from one port to the next, determined by
++ * the more common I/O functions of the ports. For simplicity, this
++ * driver assumes all the ports are 32 bits wide regardless of the
++ * real bit width of the port. GPIO bits are numbered from zero to
++ * MAX_UBICOM_GPIOS. Within a port, the least significant bit is
++ * numbered bit zero, the most significant is bit 31. Since the ports
++ * are considered logically contiguous, GPIO #32 is the zeroth bit in
++ * port #1, and so on. Due to the hardware definition, there are
++ * large gaps in the GPIO numbers representing real pins.
++ *
++ * NOTE: It is up to the programmer to refer to the processor data
++ * sheet to determine which bits in which ports can be accessed and
++ * used for GPIO.
++ *
++ */
++
++
++/* There are 9 ports, A through I. Not all 32 bits in each
++ * port can be a GPIO, but we pretend they are. Its up to the
++ * programmer to refer to the processor data sheet.
++ */
++#define MAX_UBICOM_GPIOS (9 * 32) /* ARCH_NR_GPIOS */
++#define NUM_GPIO_PORTS (gpio_bank(MAX_UBICOM_GPIOS))
++
++
++/* GPIO reservation bit map array */
++static int reserved_gpio_map[NUM_GPIO_PORTS];
++
++
++/* Array of hardware io_port addresses */
++static struct ubicom32_io_port *gpio_bank_addr[NUM_GPIO_PORTS] =
++{
++ UBICOM32_IO_PORT(RA),
++ UBICOM32_IO_PORT(RB),
++ UBICOM32_IO_PORT(RC),
++ UBICOM32_IO_PORT(RD),
++ UBICOM32_IO_PORT(RE),
++ UBICOM32_IO_PORT(RF),
++ UBICOM32_IO_PORT(RG),
++ UBICOM32_IO_PORT(RH),
++ UBICOM32_IO_PORT(RI)
++};
++
++
++struct ubi_gpio_chip {
++ /*
++ * Right now, nothing else lives here.
++ */
++ struct gpio_chip gpio_chip;
++};
++
++
++#if UBI_GPIO_CHECK_RANGE
++inline int check_gpio(unsigned gpio)
++{
++ if (gpio >= MAX_UBICOM_GPIOS)
++ return -EINVAL;
++ return 0;
++}
++#else
++#define check_gpio(n) (0)
++#endif
++
++/*
++ * ubi_gpio_get_port
++ * Get the IO port associated with a certain gpio
++ */
++struct ubicom32_io_port *ubi_gpio_get_port(unsigned gpio)
++{
++ if (gpio_bank(gpio) > NUM_GPIO_PORTS) {
++ return NULL;
++ }
++ return gpio_bank_addr[gpio_bank(gpio)];
++}
++
++/*
++ * ubi_gpio_error()
++ */
++static void ubi_gpio_error(unsigned gpio)
++{
++ printk(KERN_ERR "ubicom-gpio: GPIO %d wasn't requested!\n", gpio);
++}
++
++/*
++ * ubi_port_setup()
++ */
++static void ubi_port_setup(unsigned gpio, unsigned short usage)
++{
++ if (!check_gpio(gpio)) {
++ if (usage) {
++ UBICOM32_GPIO_ENABLE(gpio);
++ } else {
++ UBICOM32_GPIO_DISABLE(gpio);
++ }
++ }
++}
++
++/*
++ * ubi_gpio_request()
++ */
++static int ubi_gpio_request(struct gpio_chip *chip, unsigned gpio)
++{
++ unsigned long flags;
++
++ if (check_gpio(gpio) < 0)
++ return -EINVAL;
++
++ local_irq_save(flags);
++
++ if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
++ printk(KERN_ERR "ubi-gpio: GPIO %d is already reserved!\n",
++ gpio);
++ local_irq_restore(flags);
++ return -EBUSY;
++ }
++
++ reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio);
++
++ ubi_port_setup(gpio, 1);
++
++ local_irq_restore(flags);
++
++ return 0;
++}
++
++/*
++ * ubi_gpio_free()
++ */
++static void ubi_gpio_free(struct gpio_chip *chip, unsigned gpio)
++{
++ unsigned long flags;
++
++ if (check_gpio(gpio) < 0)
++ return;
++
++ local_irq_save(flags);
++
++ if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
++ ubi_gpio_error(gpio);
++ local_irq_restore(flags);
++ return;
++ }
++
++ /* Assert the pin is no longer claimed */
++ reserved_gpio_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
++
++ /* Revert port bit to use specified by port->function */
++ ubi_port_setup(gpio, 0);
++
++ local_irq_restore(flags);
++}
++
++/*
++ * ubi_gpio_direction_input()
++ */
++static int ubi_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
++{
++ unsigned long flags;
++
++ if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
++ ubi_gpio_error(gpio);
++ return -EINVAL;
++ }
++
++ local_irq_save(flags);
++
++ /* Configure pin as gpio */
++ ubi_port_setup(gpio, 1);
++
++ /* Assert pin is an input */
++ UBICOM32_GPIO_SET_PIN_INPUT(gpio);
++
++ local_irq_restore(flags);
++
++ return 0;
++}
++
++
++/*
++ * ubi_gpio_direction_output()
++ */
++static int ubi_gpio_direction_output(struct gpio_chip *chip,
++ unsigned gpio, int value)
++{
++ unsigned long flags;
++
++ if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
++ ubi_gpio_error(gpio);
++ return -EINVAL;
++ }
++
++ local_irq_save(flags);
++
++ /* Configure pin as gpio and set initial value in gpio_out register
++ * so that when we enable it as an output, it will have the correct
++ * initial value.
++ */
++ ubi_port_setup(gpio, 1);
++ if (value) {
++ UBICOM32_GPIO_SET_PIN_HIGH(gpio);
++ } else {
++ UBICOM32_GPIO_SET_PIN_LOW(gpio);
++ }
++
++ /* Enable the pin as an output */
++ UBICOM32_GPIO_SET_PIN_OUTPUT(gpio);
++
++ local_irq_restore(flags);
++
++ return 0;
++}
++
++
++/*
++ * ubi_gpio_get_value()
++ */
++static int ubi_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
++{
++ return 0 != (gpio_bank_addr[gpio_bank(gpio)]->gpio_in & gpio_bit(gpio));
++}
++
++
++/*
++ * ubi_gpio_set_value()
++ */
++static void ubi_gpio_set_value(struct gpio_chip *chip, unsigned gpio,
++ int arg)
++{
++ unsigned long flags;
++ local_irq_save(flags);
++
++ if (arg) {
++ UBICOM32_GPIO_SET_PIN_HIGH(gpio);
++ } else {
++ UBICOM32_GPIO_SET_PIN_LOW(gpio);
++ }
++
++ local_irq_restore(flags);
++}
++
++
++/*
++ * ubi_gpio_to_irq()
++ */
++static int ubi_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
++{
++ return gpio_to_irq(gpio);
++}
++
++
++/*
++ * ubi_gpio_init()
++ */
++int __init ubi_gpio_init(void)
++{
++ int k;
++ int status;
++ struct ubi_gpio_chip *chip;
++ struct gpio_chip *gc;
++
++ printk(KERN_INFO "Ubicom GPIO Controller\n");
++
++ chip = kzalloc(sizeof(struct ubi_gpio_chip), GFP_KERNEL);
++ if (chip == NULL)
++ return -ENOMEM;
++
++ gc = &chip->gpio_chip;
++ gc->request = ubi_gpio_request;
++ gc->free = ubi_gpio_free;
++ gc->to_irq = ubi_gpio_to_irq;
++ gc->direction_input = ubi_gpio_direction_input;
++ gc->direction_output = ubi_gpio_direction_output;
++ gc->get = ubi_gpio_get_value;
++ gc->set = ubi_gpio_set_value;
++ gc->can_sleep = 0;
++ gc->base = 0;
++ gc->ngpio = MAX_UBICOM_GPIOS; /* ARCH_NR_GPIOS - 1 */
++ gc->label = "ubi_gpio";
++
++ status = gpiochip_add(gc);
++ if (status != 0) {
++ kfree(chip);
++ return status;
++ }
++
++ /* Assert all pins are free */
++ for (k = 0; k < NUM_GPIO_PORTS; k++) {
++ reserved_gpio_map[k] = 0;
++ }
++
++ return 0;
++}
++
++#if defined(CONFIG_PROC_FS)
++/*
++ * ubi_get_gpio_dir()
++ */
++static int ubi_get_gpio_dir(unsigned gpio)
++{
++ if (gpio_bank_addr[gpio_bank(gpio)]->gpio_ctl & gpio_bit(gpio))
++ return 1;
++ else
++ return 0;
++}
++
++/*
++ * gpio_proc_read()
++ */
++static int ubi_gpio_proc_read(char *buf, char **start, off_t offset,
++ int len, int *unused_i, void *unused_v)
++{
++ int c, outlen = 0;
++
++ for (c = 0; c < MAX_UBICOM_GPIOS; c++) {
++ if (!check_gpio(c) &&
++ (reserved_gpio_map[gpio_bank(c)] & gpio_bit(c))) {
++ len = sprintf(buf, "GPIO_%d:\t\tGPIO %s\n", c,
++ ubi_get_gpio_dir(c) ? "OUTPUT" : "INPUT");
++ } else {
++ continue;
++ }
++
++ buf += len;
++ outlen += len;
++ }
++ return outlen;
++}
++
++/*
++ * ubi_gpio_register_proc()
++ */
++static __init int ubi_gpio_register_proc(void)
++{
++ struct proc_dir_entry *proc_gpio;
++
++ proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL);
++ if (proc_gpio)
++ proc_gpio->read_proc = ubi_gpio_proc_read;
++
++ return proc_gpio != NULL;
++}
++device_initcall(ubi_gpio_register_proc);
++#endif
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ubicom32hid.c
+@@ -0,0 +1,557 @@
++/*
++ * arch/ubicom32/mach-common/ubicom32hid.c
++ * I2C driver for HID coprocessor found on some DPF implementations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/gpio.h>
++#include <linux/delay.h>
++#include <linux/platform_device.h>
++#include <linux/i2c.h>
++#include <linux/backlight.h>
++#include <linux/fb.h>
++#include <linux/input.h>
++#include <linux/input-polldev.h>
++
++#include <asm/ubicom32hid.h>
++
++#define DRIVER_NAME "ubicom32hid"
++
++#ifdef DEBUG
++static int ubicom32hid_debug;
++#endif
++
++static const struct i2c_device_id ubicom32hid_id[] = {
++ { DRIVER_NAME, },
++ { }
++};
++MODULE_DEVICE_TABLE(i2c, ubicom32hid_id);
++
++/*
++ * Define this to make IR checking strict, in general, it's not needed
++ */
++#undef UBICOM32HID_STRICT_IR_CHECK
++
++#define UBICOM32HID_CMD_SET_PWM 0x01
++#define UBICOM32HID_CMD_SET_BL_EN 0x02
++#define UBICOM32HID_BL_EN_LOW 0x00
++#define UBICOM32HID_BL_EN_HIZ 0x01
++#define UBICOM32HID_BL_EN_HI 0x02
++#define UBICOM32HID_CMD_FLUSH 0x99
++#define UBICOM32HID_CMD_RESET 0x99
++#define UBICOM32HID_CMD_GET_IR_SWITCH 0xC0
++#define UBICOM32HID_CMD_GET_REVISION 0xfd
++#define UBICOM32HID_CMD_GET_DEVICE_ID 0xfe
++#define UBICOM32HID_CMD_GET_VERSION 0xff
++#define UBICOM32HID_DEVICE_ID 0x49
++
++#define UBICOM32HID_MAX_BRIGHTNESS_PWM 255
++
++/*
++ * Data structure returned by the HID device
++ */
++struct ubicom32hid_input_data {
++ uint32_t ircmd;
++ uint8_t sw_state;
++ uint8_t sw_changed;
++};
++
++/*
++ * Our private data
++ */
++struct ubicom32hid_data {
++ /*
++ * Pointer to the platform data structure, we need the settings.
++ */
++ const struct ubicom32hid_platform_data *pdata;
++
++ /*
++ * Backlight device
++ */
++ struct backlight_device *bldev;
++
++ /*
++ * I2C client, for sending messages to the HID device
++ */
++ struct i2c_client *client;
++
++ /*
++ * Current intensity, used for get_intensity.
++ */
++ int cur_intensity;
++
++ /*
++ * Input subsystem
++ * We won't register an input subsystem if there are no mappings.
++ */
++ struct input_polled_dev *poll_dev;
++};
++
++
++/*
++ * ubicom32hid_set_intensity
++ */
++static int ubicom32hid_set_intensity(struct backlight_device *bd)
++{
++ struct ubicom32hid_data *ud =
++ (struct ubicom32hid_data *)bl_get_data(bd);
++ int intensity = bd->props.brightness;
++ int reg;
++ u8_t val;
++ int ret;
++
++ /*
++ * If we're blanked the the intensity doesn't matter.
++ */
++ if ((bd->props.power != FB_BLANK_UNBLANK) ||
++ (bd->props.fb_blank != FB_BLANK_UNBLANK)) {
++ intensity = 0;
++ }
++
++ /*
++ * Set the brightness based on the type of backlight
++ */
++ if (ud->pdata->type == UBICOM32HID_BL_TYPE_BINARY) {
++ reg = UBICOM32HID_CMD_SET_BL_EN;
++ if (intensity) {
++ val = ud->pdata->invert
++ ? UBICOM32HID_BL_EN_LOW : UBICOM32HID_BL_EN_HI;
++ } else {
++ val = ud->pdata->invert
++ ? UBICOM32HID_BL_EN_HI : UBICOM32HID_BL_EN_LOW;
++ }
++ } else {
++ reg = UBICOM32HID_CMD_SET_PWM;
++ val = ud->pdata->invert
++ ? (UBICOM32HID_MAX_BRIGHTNESS_PWM - intensity) :
++ intensity;
++ }
++
++ /*
++ * Send the command
++ */
++ ret = i2c_smbus_write_byte_data(ud->client, reg, val);
++ if (ret < 0) {
++ dev_warn(&ud->client->dev, "Unable to write backlight err=%d\n",
++ ret);
++ return ret;
++ }
++
++ ud->cur_intensity = intensity;
++
++ return 0;
++}
++
++/*
++ * ubicom32hid_get_intensity
++ * Return the current intensity of the backlight.
++ */
++static int ubicom32hid_get_intensity(struct backlight_device *bd)
++{
++ struct ubicom32hid_data *ud =
++ (struct ubicom32hid_data *)bl_get_data(bd);
++
++ return ud->cur_intensity;
++}
++
++/*
++ * ubicom32hid_verify_data
++ * Verify the data to see if there is any action to be taken
++ *
++ * Returns 0 if no action is to be taken, non-zero otherwise
++ */
++static int ubicom32hid_verify_data(struct ubicom32hid_data *ud,
++ struct ubicom32hid_input_data *data)
++{
++ uint8_t *ircmd = (uint8_t *)&(data->ircmd);
++
++ /*
++ * ircmd == DEADBEEF means ir queue is empty. Since this is a
++ * meaningful code, that means the rest of the message is most likely
++ * correct, so only process the data if the switch state has changed.
++ */
++ if (data->ircmd == 0xDEADBEEF) {
++ return data->sw_changed != 0;
++ }
++
++ /*
++ * We have an ircmd which is not empty:
++ * Data[1] should be the complement of Data[0]
++ */
++ if (ircmd[0] != (u8_t)~ircmd[1]) {
++ return 0;
++ }
++
++#ifdef UBICOM32HID_STRICT_IR_CHECK
++ /*
++ * It seems that some remote controls don't follow the NEC protocol
++ * properly, so only do this check if the remote does indeed follow the
++ * spec. Data[3] should be the complement of Data[2]
++ */
++ if (ircmd[2] == (u8_t)~ircmd[3]) {
++ return 1;
++ }
++
++ /*
++ * For non-compliant remotes, check the system code according to what
++ * they send.
++ */
++ if ((ircmd[2] != UBICOM32HID_IR_SYSTEM_CODE_CHECK) ||
++ (ircmd[3] != UBICOM32HID_IR_SYSTEM_CODE)) {
++ return 0;
++ }
++#endif
++
++ /*
++ * Data checks out, process
++ */
++ return 1;
++}
++
++/*
++ * ubicom32hid_poll_input
++ * Poll the input from the HID device.
++ */
++static void ubicom32hid_poll_input(struct input_polled_dev *dev)
++{
++ struct ubicom32hid_data *ud = (struct ubicom32hid_data *)dev->private;
++ const struct ubicom32hid_platform_data *pdata = ud->pdata;
++ struct ubicom32hid_input_data data;
++ struct input_dev *id = dev->input;
++ int i;
++ int sync_needed = 0;
++ uint8_t cmd;
++ int ret;
++
++ /*
++ * Flush the queue
++ */
++ cmd = UBICOM32HID_CMD_FLUSH;
++ ret = i2c_master_send(ud->client, &cmd, 1);
++ if (ret < 0) {
++ return;
++ }
++
++ ret = i2c_smbus_read_i2c_block_data(
++ ud->client, UBICOM32HID_CMD_GET_IR_SWITCH, 6, (void *)&data);
++ if (ret < 0) {
++ return;
++ }
++
++ /*
++ * Verify the data to see if there is any action to be taken
++ */
++ if (!ubicom32hid_verify_data(ud, &data)) {
++ return;
++ }
++
++#ifdef DEBUG
++ if (ubicom32hid_debug) {
++ printk("Polled ircmd=%8x swstate=%2x swchanged=%2x\n",
++ data.ircmd, data.sw_state, data.sw_changed);
++ }
++#endif
++
++ /*
++ * Process changed switches
++ */
++ if (data.sw_changed) {
++ const struct ubicom32hid_button *ub = pdata->buttons;
++ for (i = 0; i < pdata->nbuttons; i++, ub++) {
++ uint8_t mask = (1 << ub->bit);
++ if (!(data.sw_changed & mask)) {
++ continue;
++ }
++
++ sync_needed = 1;
++ input_event(id, ub->type, ub->code,
++ (data.sw_state & mask) ? 1 : 0);
++ }
++ }
++ if (sync_needed) {
++ input_sync(id);
++ }
++
++ /*
++ * Process ir codes
++ */
++ if (data.ircmd != 0xDEADBEEF) {
++ const struct ubicom32hid_ir *ui = pdata->ircodes;
++ for (i = 0; i < pdata->nircodes; i++, ui++) {
++ if (ui->ir_code == data.ircmd) {
++ /*
++ * Simulate a up/down event
++ */
++ input_event(id, ui->type, ui->code, 1);
++ input_sync(id);
++ input_event(id, ui->type, ui->code, 0);
++ input_sync(id);
++ }
++ }
++ }
++}
++
++
++/*
++ * Backlight ops
++ */
++static struct backlight_ops ubicom32hid_blops = {
++ .get_brightness = ubicom32hid_get_intensity,
++ .update_status = ubicom32hid_set_intensity,
++};
++
++/*
++ * ubicom32hid_probe
++ */
++static int ubicom32hid_probe(struct i2c_client *client,
++ const struct i2c_device_id *id)
++{
++ struct ubicom32hid_platform_data *pdata;
++ struct ubicom32hid_data *ud;
++ int ret;
++ int i;
++ u8 version[2];
++ char buf[1];
++
++ pdata = client->dev.platform_data;
++ if (pdata == NULL) {
++ return -ENODEV;
++ }
++
++ /*
++ * See if we even have a device available before allocating memory.
++ *
++ * Hard reset the device
++ */
++ ret = gpio_request(pdata->gpio_reset, "ubicom32hid-reset");
++ if (ret < 0) {
++ return ret;
++ }
++ gpio_direction_output(pdata->gpio_reset, pdata->gpio_reset_polarity);
++ udelay(100);
++ gpio_set_value(pdata->gpio_reset, !pdata->gpio_reset_polarity);
++ udelay(100);
++
++ /*
++ * soft reset the device. It sometimes takes a while to do this.
++ */
++ for (i = 0; i < 50; i++) {
++ buf[0] = UBICOM32HID_CMD_RESET;
++ ret = i2c_master_send(client, buf, 1);
++ if (ret > 0) {
++ break;
++ }
++ udelay(10000);
++ }
++ if (i == 50) {
++ dev_warn(&client->dev, "Unable to reset device\n");
++ goto fail;
++ }
++
++ ret = i2c_smbus_read_byte_data(client, UBICOM32HID_CMD_GET_DEVICE_ID);
++ if (ret != UBICOM32HID_DEVICE_ID) {
++ dev_warn(&client->dev, "Incorrect device id %02x\n", buf[0]);
++ ret = -ENODEV;
++ goto fail;
++ }
++
++ ret = i2c_smbus_read_byte_data(client, UBICOM32HID_CMD_GET_VERSION);
++ if (ret < 0) {
++ dev_warn(&client->dev, "Unable to get version\n");
++ goto fail;
++ }
++ version[0] = ret;
++
++ ret = i2c_smbus_read_byte_data(client, UBICOM32HID_CMD_GET_REVISION);
++ if (ret < 0) {
++ dev_warn(&client->dev, "Unable to get revision\n");
++ goto fail;
++ }
++ version[1] = ret;
++
++ /*
++ * Allocate our private data
++ */
++ ud = kzalloc(sizeof(struct ubicom32hid_data), GFP_KERNEL);
++ if (!ud) {
++ ret = -ENOMEM;
++ goto fail;
++ }
++ ud->pdata = pdata;
++ ud->client = client;
++
++ /*
++ * Register our backlight device
++ */
++ ud->bldev = backlight_device_register(DRIVER_NAME, &client->dev,
++ ud, &ubicom32hid_blops);
++ if (IS_ERR(ud->bldev)) {
++ ret = PTR_ERR(ud->bldev);
++ goto fail2;
++ }
++ platform_set_drvdata(client, ud);
++
++ /*
++ * Start up the backlight with the requested intensity
++ */
++ ud->bldev->props.power = FB_BLANK_UNBLANK;
++ ud->bldev->props.max_brightness =
++ (pdata->type == UBICOM32HID_BL_TYPE_PWM) ?
++ UBICOM32HID_MAX_BRIGHTNESS_PWM : 1;
++ if (pdata->default_intensity < ud->bldev->props.max_brightness) {
++ ud->bldev->props.brightness = pdata->default_intensity;
++ } else {
++ dev_warn(&client->dev, "Default brightness out of range, "
++ "setting to max\n");
++ ud->bldev->props.brightness = ud->bldev->props.max_brightness;
++ }
++
++ ubicom32hid_set_intensity(ud->bldev);
++
++ /*
++ * Check to see if we have any inputs
++ */
++ if (!pdata->nbuttons && !pdata->nircodes) {
++ goto done;
++ }
++
++ /*
++ * We have buttons or codes, we must register an input device
++ */
++ ud->poll_dev = input_allocate_polled_device();
++ if (!ud->poll_dev) {
++ ret = -ENOMEM;
++ goto fail3;
++ }
++
++ /*
++ * Setup the polling to default to 100ms
++ */
++ ud->poll_dev->poll = ubicom32hid_poll_input;
++ ud->poll_dev->poll_interval =
++ pdata->poll_interval ? pdata->poll_interval : 100;
++ ud->poll_dev->private = ud;
++
++ ud->poll_dev->input->name =
++ pdata->input_name ? pdata->input_name : "Ubicom32HID";
++ ud->poll_dev->input->phys = "ubicom32hid/input0";
++ ud->poll_dev->input->dev.parent = &client->dev;
++ ud->poll_dev->input->id.bustype = BUS_I2C;
++
++ /*
++ * Set the capabilities by running through the buttons and ir codes
++ */
++ for (i = 0; i < pdata->nbuttons; i++) {
++ const struct ubicom32hid_button *ub = &pdata->buttons[i];
++
++ input_set_capability(ud->poll_dev->input,
++ ub->type ? ub->type : EV_KEY, ub->code);
++ }
++
++ for (i = 0; i < pdata->nircodes; i++) {
++ const struct ubicom32hid_ir *ui = &pdata->ircodes[i];
++
++ input_set_capability(ud->poll_dev->input,
++ ui->type ? ui->type : EV_KEY, ui->code);
++ }
++
++ ret = input_register_polled_device(ud->poll_dev);
++ if (ret) {
++ goto fail3;
++ }
++
++done:
++ printk(KERN_INFO DRIVER_NAME ": enabled, version=%02x.%02x\n",
++ version[0], version[1]);
++
++ return 0;
++
++fail3:
++ gpio_free(ud->pdata->gpio_reset);
++ backlight_device_unregister(ud->bldev);
++fail2:
++ kfree(ud);
++fail:
++ gpio_free(pdata->gpio_reset);
++ return ret;
++}
++
++/*
++ * ubicom32hid_remove
++ */
++static int ubicom32hid_remove(struct i2c_client *client)
++{
++ struct ubicom32hid_data *ud =
++ (struct ubicom32hid_data *)platform_get_drvdata(client);
++
++ gpio_free(ud->pdata->gpio_reset);
++
++ backlight_device_unregister(ud->bldev);
++
++ if (ud->poll_dev) {
++ input_unregister_polled_device(ud->poll_dev);
++ input_free_polled_device(ud->poll_dev);
++ }
++
++ platform_set_drvdata(client, NULL);
++
++ kfree(ud);
++
++ return 0;
++}
++
++static struct i2c_driver ubicom32hid_driver = {
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++ .probe = ubicom32hid_probe,
++ .remove = __exit_p(ubicom32hid_remove),
++ .id_table = ubicom32hid_id,
++};
++
++/*
++ * ubicom32hid_init
++ */
++static int __init ubicom32hid_init(void)
++{
++ return i2c_add_driver(&ubicom32hid_driver);
++}
++module_init(ubicom32hid_init);
++
++/*
++ * ubicom32hid_exit
++ */
++static void __exit ubicom32hid_exit(void)
++{
++ i2c_del_driver(&ubicom32hid_driver);
++}
++module_exit(ubicom32hid_exit);
++
++MODULE_AUTHOR("Pat Tjin <@ubicom.com>")
++MODULE_DESCRIPTION("Ubicom HID driver");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ubicom32input.c
+@@ -0,0 +1,265 @@
++/*
++ * arch/ubicom32/mach-common/ubicom32input.c
++ * Ubicom32 Input driver
++ *
++ * based on gpio-keys
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ *
++ *
++ * TODO: add groups for inputs which can be sampled together (i.e. I2C)
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/input.h>
++#include <linux/input-polldev.h>
++#include <linux/delay.h>
++#include <linux/gpio.h>
++
++#include <asm/ubicom32input.h>
++
++struct ubicom32input_data {
++ struct ubicom32input_platform_data *pdata;
++
++ struct input_polled_dev *poll_dev;
++
++ /*
++ * collection of previous states for buttons
++ */
++ u8 prev_state[0];
++};
++
++/*
++ * ubicom32input_poll
++ */
++static void ubicom32input_poll(struct input_polled_dev *dev)
++{
++ struct ubicom32input_data *ud =
++ (struct ubicom32input_data *)dev->private;
++ struct ubicom32input_platform_data *pdata = ud->pdata;
++ struct input_dev *id = dev->input;
++ int i;
++ int sync_needed = 0;
++
++ for (i = 0; i < pdata->nbuttons; i++) {
++ const struct ubicom32input_button *ub = &pdata->buttons[i];
++ int state = 0;
++
++ int val = gpio_get_value(ub->gpio);
++
++ /*
++ * Check to see if the state changed from the last time we
++ * looked
++ */
++ if (val == ud->prev_state[i]) {
++ continue;
++ }
++
++ /*
++ * The state has changed, determine if we are "up" or "down"
++ */
++ ud->prev_state[i] = val;
++
++ if ((!val && ub->active_low) || (val && !ub->active_low)) {
++ state = 1;
++ }
++
++ input_event(id, ub->type, ub->code, state);
++ sync_needed = 1;
++ }
++
++ if (sync_needed) {
++ input_sync(id);
++ }
++}
++
++/*
++ * ubicom32input_probe
++ */
++static int __devinit ubicom32input_probe(struct platform_device *pdev)
++{
++ int i;
++ struct ubicom32input_data *ud;
++ struct input_polled_dev *poll_dev;
++ struct input_dev *input_dev;
++ struct ubicom32input_platform_data *pdata;
++ int ret;
++
++ pdata = pdev->dev.platform_data;
++ if (!pdata) {
++ return -EINVAL;
++ }
++
++ ud = kzalloc(sizeof(struct ubicom32input_data) +
++ pdata->nbuttons, GFP_KERNEL);
++ if (!ud) {
++ return -ENOMEM;
++ }
++ ud->pdata = pdata;
++
++ poll_dev = input_allocate_polled_device();
++ if (!poll_dev) {
++ ret = -ENOMEM;
++ goto fail;
++ }
++
++ platform_set_drvdata(pdev, ud);
++
++ ud->poll_dev = poll_dev;
++ poll_dev->private = ud;
++ poll_dev->poll = ubicom32input_poll;
++
++ /*
++ * Set the poll interval requested, default to 50 msec
++ */
++ if (pdata->poll_interval) {
++ poll_dev->poll_interval = pdata->poll_interval;
++ } else {
++ poll_dev->poll_interval = 50;
++ }
++
++ /*
++ * Setup the input device
++ */
++ input_dev = poll_dev->input;
++ input_dev->name = pdata->name ? pdata->name : "Ubicom32 Input";
++ input_dev->phys = "ubicom32input/input0";
++ input_dev->dev.parent = &pdev->dev;
++ input_dev->id.bustype = BUS_HOST;
++
++ /*
++ * Reserve the GPIOs
++ */
++ for (i = 0; i < pdata->nbuttons; i++) {
++ const struct ubicom32input_button *ub = &pdata->buttons[i];
++
++ ret = gpio_request(ub->gpio,
++ ub->desc ? ub->desc : "ubicom32input");
++ if (ret < 0) {
++ pr_err("ubicom32input: failed to request "
++ "GPIO %d ret=%d\n", ub->gpio, ret);
++ goto fail2;
++ }
++
++ ret = gpio_direction_input(ub->gpio);
++ if (ret < 0) {
++ pr_err("ubicom32input: failed to set "
++ "GPIO %d to input ret=%d\n", ub->gpio, ret);
++ goto fail2;
++ }
++
++ /*
++ * Set the previous state to the non-active stae
++ */
++ ud->prev_state[i] = ub->active_low;
++
++ input_set_capability(input_dev,
++ ub->type ? ub->type : EV_KEY, ub->code);
++ }
++
++ /*
++ * Register
++ */
++ ret = input_register_polled_device(ud->poll_dev);
++ if (ret) {
++ goto fail2;
++ }
++
++ return 0;
++
++fail2:
++ /*
++ * release the GPIOs we have already requested.
++ */
++ while (--i >= 0) {
++ gpio_free(pdata->buttons[i].gpio);
++ }
++
++fail:
++ printk(KERN_ERR "Ubicom32Input: Failed to register driver %d", ret);
++ platform_set_drvdata(pdev, NULL);
++ input_free_polled_device(poll_dev);
++ kfree(ud);
++ return ret;
++}
++
++/*
++ * ubicom32input_remove
++ */
++static int __devexit ubicom32input_remove(struct platform_device *dev)
++{
++ struct ubicom32input_data *ud =
++ (struct ubicom32input_data *)platform_get_drvdata(dev);
++ int i;
++
++ /*
++ * Free the GPIOs
++ */
++ for (i = 0; i < ud->pdata->nbuttons; i++) {
++ gpio_free(ud->pdata->buttons[i].gpio);
++ }
++
++ platform_set_drvdata(dev, NULL);
++ input_unregister_polled_device(ud->poll_dev);
++ input_free_polled_device(ud->poll_dev);
++
++ kfree(ud);
++
++ return 0;
++}
++
++static struct platform_driver ubicom32input_driver = {
++ .driver = {
++ .name = "ubicom32input",
++ .owner = THIS_MODULE,
++ },
++ .probe = ubicom32input_probe,
++ .remove = __devexit_p(ubicom32input_remove),
++};
++
++/*
++ * ubicom32input_init
++ */
++static int __devinit ubicom32input_init(void)
++{
++ return platform_driver_register(&ubicom32input_driver);
++}
++
++/*
++ * ubicom32input_exit
++ */
++static void __exit ubicom32input_exit(void)
++{
++ platform_driver_unregister(&ubicom32input_driver);
++}
++
++module_init(ubicom32input_init);
++module_exit(ubicom32input_exit);
++
++MODULE_AUTHOR("Pat Tjin <pattjin@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 Input Driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:ubicom32-input");
+--- /dev/null
++++ b/arch/ubicom32/mach-common/ubicom32input_i2c.c
+@@ -0,0 +1,325 @@
++/*
++ * arch/ubicom32/mach-common/ubicom32input_i2c.c
++ * Ubicom32 Input driver for I2C
++ * Supports PCA953x and family
++ *
++ * We hog the I2C device, turning it all to input.
++ *
++ * Based on gpio-keys, pca953x
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/input.h>
++#include <linux/input-polldev.h>
++#include <linux/i2c.h>
++
++#include <asm/ubicom32input_i2c.h>
++
++#define UBICOM32INPUT_I2C_REG_INPUT 0
++#define UBICOM32INPUT_I2C_REG_OUTPUT 1
++#define UBICOM32INPUT_I2C_REG_INVERT 2
++#define UBICOM32INPUT_I2C_REG_DIRECTION 3
++
++static const struct i2c_device_id ubicom32input_i2c_id[] = {
++ { "ubicom32in_pca9534", 8, },
++ { "ubicom32in_pca9535", 16, },
++ { "ubicom32in_pca9536", 4, },
++ { "ubicom32in_pca9537", 4, },
++ { "ubicom32in_pca9538", 8, },
++ { "ubicom32in_pca9539", 16, },
++ { "ubicom32in_pca9554", 8, },
++ { "ubicom32in_pca9555", 16, },
++ { "ubicom32in_pca9557", 8, },
++ { "ubicom32in_max7310", 8, },
++ { }
++};
++MODULE_DEVICE_TABLE(i2c, ubicom32input_i2c_id);
++
++struct ubicom32input_i2c_data {
++ struct ubicom32input_i2c_platform_data *pdata;
++
++ struct i2c_client *client;
++
++ struct input_polled_dev *poll_dev;
++
++ /*
++ * collection of previous states for buttons
++ */
++ uint16_t prev_state;
++
++ uint8_t ngpios;
++};
++
++/*
++ * ubicom32input_i2c_write_reg
++ * writes a register to the I2C device.
++ */
++static int ubicom32input_i2c_write_reg(struct ubicom32input_i2c_data *ud,
++ int reg, uint16_t val)
++{
++ int ret;
++
++ if (ud->ngpios <= 8) {
++ ret = i2c_smbus_write_byte_data(ud->client, reg, val);
++ } else {
++ ret = i2c_smbus_write_word_data(ud->client, reg << 1, val);
++ }
++
++ if (ret < 0) {
++ return ret;
++ }
++
++ return 0;
++}
++
++/*
++ * ubicom32input_i2c_read_reg
++ * reads a register from the I2C device.
++ */
++static int ubicom32input_i2c_read_reg(struct ubicom32input_i2c_data *ud,
++ int reg, uint16_t *val)
++{
++ int ret;
++
++ if (ud->ngpios <= 8) {
++ ret = i2c_smbus_read_byte_data(ud->client, reg);
++ } else {
++ ret = i2c_smbus_read_word_data(ud->client, reg);
++ }
++
++ if (ret < 0) {
++ return ret;
++ }
++
++ *val = (uint16_t)ret;
++
++ return 0;
++}
++
++/*
++ * ubicom32input_i2c_poll
++ */
++static void ubicom32input_i2c_poll(struct input_polled_dev *dev)
++{
++ struct ubicom32input_i2c_data *ud =
++ (struct ubicom32input_i2c_data *)dev->private;
++ struct ubicom32input_i2c_platform_data *pdata = ud->pdata;
++ struct input_dev *id = dev->input;
++ int i;
++ int sync_needed = 0;
++ uint16_t val;
++ uint16_t change_mask;
++
++ /*
++ * Try to get the input status, if we fail, bail out, maybe we can do it
++ * next time.
++ */
++ if (ubicom32input_i2c_read_reg(ud, UBICOM32INPUT_I2C_REG_INPUT, &val)) {
++ return;
++ }
++
++ /*
++ * see if anything changed by using XOR
++ */
++ change_mask = ud->prev_state ^ val;
++ ud->prev_state = val;
++
++ for (i = 0; i < pdata->nbuttons; i++) {
++ const struct ubicom32input_i2c_button *ub = &pdata->buttons[i];
++ uint16_t mask = 1 << ub->bit;
++ int state = val & mask;
++
++ /*
++ * Check to see if the state changed from the last time we
++ * looked
++ */
++ if (!(change_mask & mask)) {
++ continue;
++ }
++ input_event(id, ub->type, ub->code, state);
++ sync_needed = 1;
++ }
++
++ if (sync_needed) {
++ input_sync(id);
++ }
++}
++
++/*
++ * ubicom32input_i2c_probe
++ */
++static int __devinit ubicom32input_i2c_probe(struct i2c_client *client,
++ const struct i2c_device_id *id)
++{
++ int i;
++ struct ubicom32input_i2c_data *ud;
++ struct input_polled_dev *poll_dev;
++ struct input_dev *input_dev;
++ struct ubicom32input_i2c_platform_data *pdata;
++ int ret;
++ uint16_t invert_mask = 0;
++
++ pdata = client->dev.platform_data;
++ if (!pdata) {
++ return -EINVAL;
++ }
++
++ ud = kzalloc(sizeof(struct ubicom32input_i2c_data), GFP_KERNEL);
++ if (!ud) {
++ return -ENOMEM;
++ }
++ ud->pdata = pdata;
++ ud->client = client;
++ ud->ngpios = id->driver_data;
++
++ poll_dev = input_allocate_polled_device();
++ if (!poll_dev) {
++ ret = -ENOMEM;
++ goto fail;
++ }
++
++ ud->poll_dev = poll_dev;
++ poll_dev->private = ud;
++ poll_dev->poll = ubicom32input_i2c_poll;
++
++ /*
++ * Set the poll interval requested, default to 100 msec
++ */
++ if (pdata->poll_interval) {
++ poll_dev->poll_interval = pdata->poll_interval;
++ } else {
++ poll_dev->poll_interval = 100;
++ }
++
++ /*
++ * Setup the input device
++ */
++ input_dev = poll_dev->input;
++ input_dev->name = pdata->name ? pdata->name : "Ubicom32 Input I2C";
++ input_dev->phys = "ubicom32input_i2c/input0";
++ input_dev->dev.parent = &client->dev;
++ input_dev->id.bustype = BUS_I2C;
++
++ /*
++ * Set the capabilities
++ */
++ for (i = 0; i < pdata->nbuttons; i++) {
++ const struct ubicom32input_i2c_button *ub = &pdata->buttons[i];
++
++ if (ub->active_low) {
++ invert_mask |= (1 << ub->bit);
++ }
++
++ input_set_capability(input_dev,
++ ub->type ? ub->type : EV_KEY, ub->code);
++ }
++
++ /*
++ * Setup the device (all inputs)
++ */
++ ret = ubicom32input_i2c_write_reg(ud, UBICOM32INPUT_I2C_REG_DIRECTION,
++ 0xFFFF);
++ if (ret < 0) {
++ goto fail;
++ }
++
++ ret = ubicom32input_i2c_write_reg(ud, UBICOM32INPUT_I2C_REG_INVERT,
++ invert_mask);
++ if (ret < 0) {
++ goto fail;
++ }
++
++ /*
++ * Register
++ */
++ ret = input_register_polled_device(ud->poll_dev);
++ if (ret) {
++ goto fail;
++ }
++
++ i2c_set_clientdata(client, ud);
++
++ return 0;
++
++fail:
++ printk(KERN_ERR "ubicom32input_i2c: Failed to register driver %d\n",
++ ret);
++ input_free_polled_device(poll_dev);
++ kfree(ud);
++ return ret;
++}
++
++/*
++ * ubicom32input_i2c_remove
++ */
++static int __devexit ubicom32input_i2c_remove(struct i2c_client *client)
++{
++ struct ubicom32input_i2c_data *ud =
++ (struct ubicom32input_i2c_data *)i2c_get_clientdata(client);
++
++ i2c_set_clientdata(client, NULL);
++ input_unregister_polled_device(ud->poll_dev);
++ input_free_polled_device(ud->poll_dev);
++
++ kfree(ud);
++
++ return 0;
++}
++
++static struct i2c_driver ubicom32input_i2c_driver = {
++ .driver = {
++ .name = "ubicom32input_i2c",
++ .owner = THIS_MODULE,
++ },
++ .remove = __devexit_p(ubicom32input_i2c_remove),
++ .id_table = ubicom32input_i2c_id,
++ .probe = ubicom32input_i2c_probe,
++};
++
++/*
++ * ubicom32input_i2c_init
++ */
++static int __devinit ubicom32input_i2c_init(void)
++{
++ return i2c_add_driver(&ubicom32input_i2c_driver);
++}
++
++/*
++ * ubicom32input_i2c_exit
++ */
++static void __exit ubicom32input_i2c_exit(void)
++{
++ i2c_del_driver(&ubicom32input_i2c_driver);
++}
++
++module_init(ubicom32input_i2c_init);
++module_exit(ubicom32input_i2c_exit);
++
++MODULE_AUTHOR("Pat Tjin <pattjin@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 Input Driver I2C");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:ubicom32-input");
+--- /dev/null
++++ b/arch/ubicom32/mach-common/usb.c
+@@ -0,0 +1,133 @@
++/*
++ * arch/ubicom32/mach-common/ip5k_usb.c
++ * Ubicom32 architecture usb support.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
++ * Author: Kevin Hilman
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can
++ * redistribute it and/or modify it under the terms of the GNU General
++ * Public License as published by the Free Software Foundation, either
++ * version 2 of the License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
++ * See the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/types.h>
++#include <linux/errno.h>
++#include <linux/delay.h>
++#include <linux/platform_device.h>
++#include <linux/dma-mapping.h>
++#include <linux/usb/musb.h>
++#include <asm/devtree.h>
++#include <asm/ip5000.h>
++#include "usb_tio.h"
++
++struct usbtionode *unode = NULL;
++
++static struct resource usb_resources[] = {
++ [0] = {
++ .start = RJ + 0x800,
++ .end = RJ + 0x1000,
++ .flags = IORESOURCE_MEM,
++ },
++ [1] = { /* general IRQ */
++ .start = 1, /* this is a dummy value, the real irq number is passed from kernel_setup_param */
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++
++static struct musb_hdrc_eps_bits musb_eps[] = {
++ { "ep1_tx", 4, },
++ { "ep1_rx", 4, },
++ { "ep2_tx", 10, },
++ { "ep2_rx", 10, },
++ { "ep3_tx", 9, },
++ { "ep3_rx", 9, },
++ { "ep4_tx", 9, },
++ { "ep4_rx", 9, },
++ { "ep5_tx", 6, },
++ { "ep5_rx", 6, },
++};
++
++static struct musb_hdrc_config musb_config = {
++ .multipoint = true,
++ .dyn_fifo = false,
++ .soft_con = true,
++ .dma = false,
++
++ .num_eps = 6,
++ .dma_channels = 0,
++ .ram_bits = 0,
++ .eps_bits = musb_eps,
++};
++
++static struct musb_hdrc_platform_data usb_data = {
++#ifdef CONFIG_USB_MUSB_OTG
++ .mode = MUSB_OTG,
++#else
++#ifdef CONFIG_USB_MUSB_HDRC_HCD
++ .mode = MUSB_HOST,
++#else
++#ifdef CONFIG_USB_GADGET_MUSB_HDRC
++ .mode = MUSB_PERIPHERAL,
++#endif
++#endif
++#endif
++ .clock = NULL,
++ .set_clock = NULL,
++ .config = &musb_config,
++};
++
++static struct platform_device musb_device = {
++ .name = "musb_hdrc",
++ .id = 0,
++ .dev = {
++ .platform_data = &usb_data,
++ .dma_mask = NULL,
++ .coherent_dma_mask = 0,
++ },
++ .resource = usb_resources,
++ .num_resources = ARRAY_SIZE(usb_resources),
++};
++
++struct usbtio_node *usb_node = NULL;
++void ubi32_usb_init(void)
++{
++ /*
++ * See if the usbtio is in the device tree.
++ */
++ usb_node = (struct usbtio_node *)devtree_find_node("usbtio");
++ if (!usb_node) {
++ printk(KERN_WARNING "usb init failed\n");
++ return;
++ }
++
++ usb_resources[1].start = usb_node->dn.recvirq;
++ if (platform_device_register(&musb_device) < 0) {
++ printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
++ return;
++ }
++}
++
++void ubi32_usb_int_clr(void)
++{
++ UBICOM32_IO_PORT(RJ)->int_clr = (1 << 3);
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mach-common/usb_tio.c
+@@ -0,0 +1,356 @@
++/*
++ * arch/ubicom32/mach-common/usb_tio.c
++ * Linux side Ubicom USB TIO driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/spinlock.h>
++#include <linux/slab.h>
++#include <asm/devtree.h>
++#include "usb_tio.h"
++
++#ifdef CONFIG_SMP
++static DEFINE_SPINLOCK(tio_lock);
++#define USB_TIO_LOCK(lock, flag) spin_lock_irqsave(lock, flag)
++#define USB_TIO_UNLOCK(lock, flag) spin_unlock_irqrestore(lock, flag)
++#define USB_TIO_LOCK_ISLOCKED(lock) spin_try_lock(lock)
++#else
++#define USB_TIO_LOCK(lock, flag) local_irq_save(flag)
++#define USB_TIO_UNLOCK(lock, flag) local_irq_restore(flag)
++#endif
++
++spinlock_t usb_tio_lock;
++
++/*
++ * usb_tio_set_hrt_interrupt()
++ */
++static inline void usb_tio_set_hrt_interrupt(void)
++{
++ ubicom32_set_interrupt(usb_node->dn.sendirq);
++}
++
++static inline void usb_tio_wait_hrt(void)
++{
++ while (unlikely(usb_node->pdesc));
++}
++
++#if defined(USB_TIO_DEBUG)
++static void usb_tio_request_verify_magic(volatile struct usb_tio_request *req)
++{
++ BUG_ON(req->magic != USB_TIO_REQUEST_MAGIC2);
++}
++
++static void usb_tio_request_clear_magic(volatile struct usb_tio_request *req)
++{
++ req->magic = 0;
++}
++#endif
++
++static void usb_tio_request_set_magic(volatile struct usb_tio_request *req)
++{
++ req->magic = USB_TIO_REQUEST_MAGIC1;
++}
++
++/*
++ * usb_tio_commit_request()
++ */
++static inline void usb_tio_commit_request(volatile struct usb_tio_request *request)
++{
++ wmb();
++ usb_node->pdesc = request;
++
++ /*
++ * next thing to do is alway checking if (usb_node->pdesc == NULL)
++ * to see if the request is done, so add a mb() here
++ */
++ mb();
++ usb_tio_set_hrt_interrupt();
++}
++
++/*
++ * usb_tio_read_u16()
++ * Synchronously read 16 bits.
++ */
++u8_t usb_tio_read_u16(u32_t address, u16_t *data)
++{
++ volatile struct usb_tio_request *tio_req = &usb_node->request;
++ unsigned long flag;
++
++ /*
++ * Wait for any previous request to complete and then make this request.
++ */
++ USB_TIO_LOCK(&tio_lock, flag);
++ usb_tio_wait_hrt();
++
++ /*
++ * Fill in the request.
++ */
++ tio_req->address = address;
++ tio_req->cmd = USB_TIO_READ16_SYNC;
++ USB_TIO_REQUEST_SET_MAGIC(tio_req);
++ usb_tio_commit_request(tio_req);
++
++ /*
++ * Wait for the result to show up.
++ */
++ usb_tio_wait_hrt();
++ USB_TIO_REQUEST_VERIFY_MAGIC(tio_req);
++ *data = (u16_t)tio_req->data;
++ USB_TIO_REQUEST_CLEAR_MAGIC(tio_req);
++ USB_TIO_UNLOCK(&tio_lock, flag);
++ return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_read_u8()
++ * Synchronously read 16 bits.
++ */
++u8_t usb_tio_read_u8(u32_t address, u8_t *data)
++{
++ volatile struct usb_tio_request *tio_req = &usb_node->request;
++ unsigned long flag;
++
++ /*
++ * Wait for any previous request to complete and then make this request.
++ */
++ USB_TIO_LOCK(&tio_lock, flag);
++ usb_tio_wait_hrt();
++
++ /*
++ * Fill in the request.
++ */
++ tio_req->address = address;
++ tio_req->cmd = USB_TIO_READ8_SYNC;
++ USB_TIO_REQUEST_SET_MAGIC(tio_req);
++
++ /*
++ * commit the request
++ */
++ usb_tio_commit_request(tio_req);
++
++ /*
++ * Wait for the result to show up.
++ */
++ usb_tio_wait_hrt();
++ USB_TIO_REQUEST_VERIFY_MAGIC(tio_req);
++ *data = (u8_t)tio_req->data;
++ USB_TIO_REQUEST_CLEAR_MAGIC(tio_req);
++ USB_TIO_UNLOCK(&tio_lock, flag);
++ return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_write_u16()
++ * Asynchronously write 16 bits.
++ */
++u8_t usb_tio_write_u16(u32_t address, u16_t data)
++{
++ volatile struct usb_tio_request *tio_req = &usb_node->request;
++ unsigned long flag;
++
++ /*
++ * Wait for any previous write or pending read to complete.
++ */
++ USB_TIO_LOCK(&tio_lock, flag);
++ usb_tio_wait_hrt();
++
++ tio_req->address = address;
++ tio_req->data = data;
++ tio_req->cmd = USB_TIO_WRITE16_ASYNC;
++ USB_TIO_REQUEST_SET_MAGIC(tio_req);
++
++ /*
++ * commit the request
++ */
++ usb_tio_commit_request(tio_req);
++ USB_TIO_UNLOCK(&tio_lock, flag);
++ return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_write_u8()
++ * Asynchronously write 8 bits.
++ */
++u8_t usb_tio_write_u8(u32_t address, u8_t data)
++{
++ volatile struct usb_tio_request *tio_req = &usb_node->request;
++ unsigned long flag;
++
++ /*
++ * Wait for any previous write or pending read to complete.
++ */
++ USB_TIO_LOCK(&tio_lock, flag);
++ usb_tio_wait_hrt();
++
++ tio_req->address = address;
++ tio_req->data = data;
++ tio_req->cmd = USB_TIO_WRITE8_ASYNC;
++ USB_TIO_REQUEST_SET_MAGIC(tio_req);
++
++ /*
++ * commit the request
++ */
++ usb_tio_commit_request(tio_req);
++ USB_TIO_UNLOCK(&tio_lock, flag);
++ return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_read_fifo()
++ * Synchronously read FIFO.
++ */
++u8_t usb_tio_read_fifo(u32_t address, u32_t buffer, u32_t bytes)
++{
++ volatile struct usb_tio_request *tio_req = &usb_node->request;
++ unsigned long flag;
++
++ /*
++ * Wait for any previous request to complete and then make this request.
++ */
++ USB_TIO_LOCK(&tio_lock, flag);
++ usb_tio_wait_hrt();
++
++ /*
++ * Fill in the request.
++ */
++ tio_req->address = address;
++ tio_req->cmd = USB_TIO_READ_FIFO_SYNC;
++ tio_req->buffer = buffer;
++ tio_req->transfer_length = bytes;
++ USB_TIO_REQUEST_SET_MAGIC(tio_req);
++
++ /*
++ * commit the request
++ */
++ usb_tio_commit_request(tio_req);
++
++ /*
++ * Wait for the result to show up.
++ */
++ usb_tio_wait_hrt();
++ USB_TIO_REQUEST_VERIFY_MAGIC(tio_req);
++ USB_TIO_REQUEST_CLEAR_MAGIC(tio_req);
++ USB_TIO_UNLOCK(&tio_lock, flag);
++ return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_write_fifo()
++ * Synchronously write 32 bits.
++ */
++u8_t usb_tio_write_fifo(u32_t address, u32_t buffer, u32_t bytes)
++{
++ volatile struct usb_tio_request *tio_req = &usb_node->request;
++ unsigned long flag;
++
++ USB_TIO_LOCK(&tio_lock, flag);
++ usb_tio_wait_hrt();
++
++ tio_req->address = address;
++ tio_req->buffer = buffer;
++ tio_req->cmd = USB_TIO_WRITE_FIFO_SYNC;
++ tio_req->transfer_length = bytes;
++ USB_TIO_REQUEST_SET_MAGIC(tio_req);
++ /*
++ * commit the request
++ */
++ usb_tio_commit_request(tio_req);
++
++ /*
++ * Wait for the result to show up.
++ */
++ usb_tio_wait_hrt();
++ USB_TIO_REQUEST_VERIFY_MAGIC(tio_req);
++ USB_TIO_REQUEST_CLEAR_MAGIC(tio_req);
++ USB_TIO_UNLOCK(&tio_lock, flag);
++ return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_write_fifo_async()
++ * Asynchronously write 32 bits.
++ */
++u8_t usb_tio_write_fifo_async(u32_t address, u32_t buffer, u32_t bytes)
++{
++ volatile struct usb_tio_request *tio_req = &usb_node->request;
++ unsigned long flag;
++
++ USB_TIO_LOCK(&tio_lock, flag);
++ usb_tio_wait_hrt();
++
++ tio_req->address = address;
++
++ /*
++ * Is it necessary to make a local copy of the buffer? Any chance the URB is aborted before TIO finished the FIFO write?
++ */
++ tio_req->buffer = buffer;
++ tio_req->cmd = USB_TIO_WRITE_FIFO_SYNC;
++ tio_req->transfer_length = bytes;
++ USB_TIO_REQUEST_SET_MAGIC(tio_req);
++ /*
++ * commit the request
++ */
++ usb_tio_commit_request(tio_req);
++ USB_TIO_UNLOCK(&tio_lock, flag);
++ return USB_TIO_OK;
++}
++
++/*
++ * usb_tio_read_int_status()
++ * read and clear the interrupt status registers
++ */
++void usb_tio_read_int_status(u8_t *int_usb, u16_t *int_tx, u16_t *int_rx)
++{
++
++ /*
++ * clear the interrupt must be syncronized with the TIO thread to prevent the racing condiiton
++ * that TIO thread try to set it at same time
++ */
++ asm volatile (
++ "1: bset (%0), (%0), #0 \n\t" \
++ " jmpne.f 1b \n\t" \
++ :
++ : "a" (&usb_node->usb_vp_control)
++ : "memory", "cc"
++ );
++
++ *int_usb = usb_node->usb_vp_hw_int_usb;
++ *int_tx = cpu_to_le16(usb_node->usb_vp_hw_int_tx);
++ *int_rx = cpu_to_le16(usb_node->usb_vp_hw_int_rx);
++
++ //printk(KERN_INFO "int read %x, %x, %x\n", *int_usb, *int_tx, *int_rx);
++
++ /*
++ * The interrupt status register is read-clean, so clear it now
++ */
++ usb_node->usb_vp_hw_int_usb = 0;
++ usb_node->usb_vp_hw_int_tx = 0;
++ usb_node->usb_vp_hw_int_rx = 0;
++
++ /*
++ * release the lock bit
++ */
++ usb_node->usb_vp_control &= 0xfffe;
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-common/usb_tio.h
+@@ -0,0 +1,111 @@
++/*
++ * arch/ubicom32/mach-common/usb_tio.h
++ * Definitions for usb_tio.c
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/version.h>
++#include <linux/kernel.h>
++#include <linux/types.h>
++#include <linux/errno.h>
++#include <linux/err.h>
++#include <asm/devtree.h>
++#include <asm/ip5000.h>
++
++#ifndef _USB_TIO_H
++#define _USB_TIO_H
++
++#undef USB_TIO_DEBUG
++
++#define USB_TIO_REQUEST_MAGIC1 0x2307
++#define USB_TIO_REQUEST_MAGIC2 0x0789
++#if defined(USB_TIO_DEBUG)
++#define USB_TIO_REQUEST_VERIFY_MAGIC(req) usb_tio_request_verify_magic(req)
++#define USB_TIO_REQUEST_SET_MAGIC(req) usb_tio_request_set_magic(req)
++#define USB_TIO_REQUEST_CLEAR_MAGIC(req) usb_tio_request_clear_magic(req)
++#else
++#define USB_TIO_REQUEST_VERIFY_MAGIC(req)
++#define USB_TIO_REQUEST_SET_MAGIC(req) usb_tio_request_set_magic(req)
++#define USB_TIO_REQUEST_CLEAR_MAGIC(req)
++#endif
++
++enum USB_TIO_status {
++ USB_TIO_OK,
++ USB_TIO_ERROR,
++ USB_TIO_ERROR_COMMIT,
++};
++
++enum USB_TIO_cmds {
++ USB_TIO_READ16_SYNC,
++ USB_TIO_READ8_SYNC,
++ USB_TIO_READ_FIFO_SYNC,
++
++ USB_TIO_WRITE16_ASYNC,
++ USB_TIO_WRITE8_ASYNC,
++ USB_TIO_WRITE_FIFO_ASYNC,
++
++ USB_TIO_WRITE16_SYNC,
++ USB_TIO_WRITE8_SYNC,
++ USB_TIO_WRITE_FIFO_SYNC,
++
++};
++
++enum USB_TIO_state {
++ USB_TIO_NORMAL,
++ USB_TIO_DMA_SETUP,
++};
++
++struct usb_tio_request {
++ volatile u32_t address;
++ union {
++ volatile u32_t data;
++ volatile u32_t buffer;
++ };
++ volatile u16_t cmd;
++ const volatile u16_t status;
++ volatile u32_t transfer_length;
++ volatile u32_t thread_mask;
++ volatile u16_t magic;
++};
++
++struct usbtio_node {
++ struct devtree_node dn;
++ volatile struct usb_tio_request * volatile pdesc;
++ struct usb_tio_request request;
++ volatile u32_t usb_vp_config;
++ volatile u32_t usb_vp_control;
++ const volatile u32_t usb_vp_status;
++ volatile u16_t usb_vp_hw_int_tx;
++ volatile u16_t usb_vp_hw_int_rx;
++ volatile u8_t usb_vp_hw_int_usb;
++ volatile u8_t usb_vp_hw_int_mask_usb;
++ volatile u16_t usb_vp_hw_int_mask_tx;
++ volatile u16_t usb_vp_hw_int_mask_rx;
++
++};
++
++extern struct usbtio_node *usb_node;
++extern void ubi32_usb_init(void);
++#endif
+--- /dev/null
++++ b/arch/ubicom32/mach-common/vdc_tio.c
+@@ -0,0 +1,111 @@
++/*
++ * arch/ubicom32/mach-common/vdc_tio.c
++ * Generic initialization for VDC
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/platform_device.h>
++#include <linux/types.h>
++
++#include <asm/devtree.h>
++#include <asm/vdc_tio.h>
++
++/*
++ * Resources that this driver uses
++ */
++static struct resource vdc_tio_resources[] = {
++ /*
++ * Send IRQ
++ */
++ [0] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Receive IRQ (optional)
++ */
++ [1] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Memory Mapped Registers
++ */
++ [2] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_MEM,
++ },
++};
++
++/*
++ * The platform_device structure which is passed to the driver
++ */
++static struct platform_device vdc_tio_platform_device = {
++ .name = "ubicom32fb",
++ .id = -1,
++ .resource = vdc_tio_resources,
++ .num_resources = ARRAY_SIZE(vdc_tio_resources),
++};
++
++/*
++ * vdc_tio_init
++ * Checks the device tree and instantiates the driver if found
++ */
++void __init vdc_tio_init(void)
++{
++ /*
++ * Check the device tree for the vdc_tio
++ */
++ struct vdc_tio_node *vdc_node =
++ (struct vdc_tio_node *)devtree_find_node("vdctio");
++ if (!vdc_node) {
++ printk(KERN_WARNING "No vdc_tio found\n");
++ return;
++ }
++
++ /*
++ * Fill in the resources and platform data from devtree information
++ */
++ vdc_tio_resources[0].start = vdc_node->dn.sendirq;
++ vdc_tio_resources[1].start = vdc_node->dn.recvirq;
++ vdc_tio_resources[2].start = (u32_t)vdc_node->regs;
++ vdc_tio_resources[2].end = (u32_t)vdc_node->regs +
++ sizeof(struct vdc_tio_vp_regs);
++
++ /*
++ * Try to get the device registered
++ */
++ if (platform_device_register(&vdc_tio_platform_device) < 0) {
++ printk(KERN_WARNING "VDC failed to register\n");
++ }
++}
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/board-ip5160dev.c
+@@ -0,0 +1,110 @@
++/*
++ * arch/ubicom32/mach-ip5k/board-ip5160dev.c
++ * Platform initialization for ip5160dev board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++#include <asm/ubicom32suart.h>
++#endif
++
++/*
++ * Factory Default Button on the board at PXn
++ * TODO: This is just a placeholder and it needs to include proper header files
++ */
++struct ubicom32fdb_platform_data {
++ int fdb_gpio;
++ bool fdb_polarity;
++};
++
++static struct ubicom32fdb_platform_data ip5160dev_fdb_data = {
++ .fdb_gpio = 0,
++ .fdb_polarity = true,
++};
++
++static struct platform_device ip5160dev_fdb_device = {
++ .name = "ubicom32fdb",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip5160dev_fdb_data,
++ },
++};
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++static struct resource ip5160dev_ubicom32_suart_resources[] = {
++ {
++ .start = RD,
++ .end = RD,
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .start = PORT_OTHER_INT(RD),
++ .end = PORT_OTHER_INT(RD),
++ .flags = IORESOURCE_IRQ,
++ },
++ {
++ .start = 240000000,
++ .end = 240000000,
++ .flags = UBICOM32_SUART_IORESOURCE_CLOCK,
++ },
++};
++
++static struct platform_device ip5160dev_ubicom32_suart_device = {
++ .name = "ubicom32suart",
++ .id = -1,
++ .num_resources = ARRAY_SIZE(ip5160dev_ubicom32_suart_resources),
++ .resource = ip5160dev_ubicom32_suart_resources,
++};
++#endif
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip5160dev_devices[] __initdata = {
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++ &ip5160dev_ubicom32_suart_device,
++#endif
++ &ip5160dev_fdb_device,
++};
++
++/*
++ * ip5160dev_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip5160dev_init(void)
++{
++ ubi_gpio_init();
++ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++ platform_add_devices(ip5160dev_devices, ARRAY_SIZE(ip5160dev_devices));
++ return 0;
++}
++
++arch_initcall(ip5160dev_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/board-ip5160rgw.c
+@@ -0,0 +1,76 @@
++/*
++ * arch/ubicom32/mach-ip5k/board-ip5160rgw.c
++ * Platform initialization for ip5160rgw board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <asm/board.h>
++#include <asm/machdep.h>
++
++/*
++ * Factory Default Button on the board at PXn
++ * TODO: This is just a placeholder and it needs to include proper header files
++ */
++struct ubicom32fdb_platform_data {
++ int fdb_gpio;
++ bool fdb_polarity;
++};
++
++static struct ubicom32fdb_platform_data ip5160rgw_fdb_data = {
++ .fdb_gpio = 0,
++ .fdb_polarity = true,
++};
++
++static struct platform_device ip5160rgw_fdb_device = {
++ .name = "ubicom32fdb",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip5160rgw_fdb_data,
++ },
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip5160rgw_devices[] __initdata = {
++ &ip5160rgw_fdb_device,
++};
++
++/*
++ * ip5160rgw_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip5160rgw_init(void)
++{
++ ubi_gpio_init();
++ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++ platform_add_devices(ip5160rgw_devices, ARRAY_SIZE(ip5160rgw_devices));
++ return 0;
++}
++
++arch_initcall(ip5160rgw_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/board-ip5170dpf.c
+@@ -0,0 +1,280 @@
++/*
++ * arch/ubicom32/mach-ip5k/board-ip5170dpf.c
++ * Platform initialization for ip5160dpf board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <linux/leds.h>
++
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++
++#include <linux/input.h>
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32hid.h>
++#include <asm/vdc_tio.h>
++
++/*
++ * LEDs
++ *
++ * WLAN PD9 (Note this is shared with MISO, but we don't use it)
++ * WPS PD8
++ *
++ * TODO: check triggers, are they generic?
++ */
++static struct gpio_led ip5170dpf_gpio_leds[] = {
++ {
++ .name = "d31:green:WLAN1",
++ .default_trigger = "WLAN1",
++ .gpio = GPIO_RD_9,
++ .active_low = 1,
++ },
++ {
++ .name = "d30:green:WPS",
++ .default_trigger = "WPS",
++ .gpio = GPIO_RD_8,
++ .active_low = 1,
++ },
++};
++
++static struct gpio_led_platform_data ip5170dpf_gpio_led_platform_data = {
++ .num_leds = 2,
++ .leds = ip5170dpf_gpio_leds,
++};
++
++static struct platform_device ip5170dpf_gpio_leds_device = {
++ .name = "leds-gpio",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip5170dpf_gpio_led_platform_data,
++ },
++};
++
++/*
++ * Backlight on the board PD0, hardware PWM
++ */
++static const struct ubicom32hid_button ip5170dpf_ubicom32hid_buttons[] = {
++ {
++ .type = EV_KEY,
++ .code = KEY_UP,
++ .bit = 0,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_LEFT,
++ .bit = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_RIGHT,
++ .bit = 2,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_DOWN,
++ .bit = 3,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ENTER,
++ .bit = 4,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_MENU,
++ .bit = 5,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ESC,
++ .bit = 7,
++ },
++};
++
++static const struct ubicom32hid_ir ip5170dpf_ubicom32hid_ircodes[] = {
++ {
++ .type = EV_KEY,
++ .code = KEY_UP,
++ .ir_code = 0xF807916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_DOWN,
++ .ir_code = 0xF20D916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_LEFT,
++ .ir_code = 0xF609916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_RIGHT,
++ .ir_code = 0xF40B916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ENTER,
++ .ir_code = 0xF50A916E
++ },
++ { /* rotate */
++ .type = EV_KEY,
++ .code = KEY_FN_F1,
++ .ir_code = 0xF906916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_MENU,
++ .ir_code = 0xF708916E
++ },
++ { /* font size */
++ .type = EV_KEY,
++ .code = KEY_FN_F2,
++ .ir_code = 0xF30C916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ESC,
++ .ir_code = 0xF10E916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_VOLUMEUP,
++ .ir_code = 0xF00F916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_VOLUMEDOWN,
++ .ir_code = 0xED12916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_MUTE,
++ .ir_code = 0xEA15916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_INFO,
++ .ir_code = 0xEF10916E
++ },
++ { /* Like */
++ .type = EV_KEY,
++ .code = KEY_FN_F3,
++ .ir_code = 0xEE11916E
++ },
++ { /* Dislike */
++ .type = EV_KEY,
++ .code = KEY_FN_F4,
++ .ir_code = 0xEB14916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_POWER,
++ .ir_code = 0xFD02916E
++ },
++};
++
++static struct ubicom32hid_platform_data ip5170dpf_ubicom32hid_platform_data = {
++ .gpio_reset = GPIO_RA_4,
++ .gpio_reset_polarity = 0,
++ .type = UBICOM32HID_BL_TYPE_BINARY,
++ .invert = 0,
++ .default_intensity = 1,
++ .buttons = ip5170dpf_ubicom32hid_buttons,
++ .nbuttons = ARRAY_SIZE(ip5170dpf_ubicom32hid_buttons),
++ .ircodes = ip5170dpf_ubicom32hid_ircodes,
++ .nircodes = ARRAY_SIZE(ip5170dpf_ubicom32hid_ircodes),
++};
++
++/*
++ * Devices on the I2C bus
++ */
++static struct i2c_board_info __initdata ip5170dpf_i2c_board_info[] = {
++ /*
++ * U24, ubicom32hid
++ */
++ {
++ .type = "ubicom32hid",
++ .addr = 0x08,
++ .platform_data = &ip5170dpf_ubicom32hid_platform_data,
++ },
++
++ /*
++ * U14, CS4350 DAC, address 0x4B
++ */
++};
++
++/*
++ * I2C bus on the board, SDA PF13, SCL PF14
++ */
++static struct i2c_gpio_platform_data ip5170dpf_i2c_data = {
++ .sda_pin = GPIO_RF_13,
++ .scl_pin = GPIO_RF_14,
++ .sda_is_open_drain = 0,
++ .scl_is_open_drain = 0,
++ .scl_is_output_only = 1,
++ .udelay = 5,
++};
++
++static struct platform_device ip5170dpf_i2c_device = {
++ .name = "i2c-gpio",
++ .id = 0,
++ .dev = {
++ .platform_data = &ip5170dpf_i2c_data,
++ },
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip5170dpf_devices[] __initdata = {
++ &ip5170dpf_i2c_device,
++ &ip5170dpf_gpio_leds_device,
++};
++
++/*
++ * ip5170dpf_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip5170dpf_init(void)
++{
++ ubi_gpio_init();
++
++ vdc_tio_init();
++
++ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++ platform_add_devices(ip5170dpf_devices, ARRAY_SIZE(ip5170dpf_devices));
++
++ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++ i2c_register_board_info(0, ip5170dpf_i2c_board_info, ARRAY_SIZE(ip5170dpf_i2c_board_info));
++
++ return 0;
++}
++
++arch_initcall(ip5170dpf_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/Kconfig
+@@ -0,0 +1,32 @@
++
++config IP5170DPF
++ bool "IP5170DPF"
++ select UBICOM32_V3
++ select I2C
++ select I2C_GPIO
++ select FB
++ select FB_UBICOM32
++ select BACKLIGHT_LCD_SUPPORT
++ select BACKLIGHT_CLASS_DEVICE
++ select UBICOM_HID
++ select NEW_LEDS
++ select LEDS_CLASS
++ select LEDS_GPIO
++ select BRD_64MB
++ help
++ IP5170 Digital Picture Frame board, 8005-1113, IP5K-BEV-0011-13 v1.3
++
++config IP5160DEV
++ bool "IP5160Dev_Ver1Dot1"
++ select UBICOM32_V3
++ select BRD_64MB
++ help
++ Ubicom StreamEngine 5000 Development Board, IP5K-BDV-0004-11 v1.1
++
++config IP5160EVAL
++ bool "IP5160RGWEval_Ver2Rev2"
++ select UBICOM32_V3
++ select BRD_32MB
++ help
++ Ubicom StreamEngine 5000 RGW Evaluation Board, IP5K-RGW-0004-11 v2.2
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip5k/Makefile
+@@ -0,0 +1,32 @@
++#
++# arch/ubicom32/mach-ip5k/Makefile
++# Makefile for boards which have an ip5k on them.
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++
++obj-$(CONFIG_IP5170DPF) += board-ip5170dpf.o
++obj-$(CONFIG_IP5160DEV) += board-ip5160dev.o
++obj-$(CONFIG_IP5160EVAL) += board-ip5160rgw.o
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7145dpf.c
+@@ -0,0 +1,716 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7145dpf.c
++ * Board file for IP7145DPF, rev 1.0, P/N 8007-0410
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++
++#include <linux/input.h>
++
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++#include <linux/i2c/pca953x.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32input.h>
++#include <asm/ubicom32input_i2c.h>
++#include <asm/ubicom32bl.h>
++#include <asm/ubicom32lcd.h>
++#include <asm/vdc_tio.h>
++
++#include <asm/ubicom32sd.h>
++#include <asm/sd_tio.h>
++#include <asm/devtree.h>
++#include <asm/audio_tio.h>
++
++#include <asm/ring_tio.h>
++
++/******************************************************************************
++ * SD/IO Port F (Slot 1) platform data
++ */
++static struct resource ip7145dpf_portf_sd_resources[] = {
++ /*
++ * Send IRQ
++ */
++ [0] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Receive IRQ
++ */
++ [1] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Memory Mapped Registers
++ */
++ [2] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_MEM,
++ },
++};
++
++static struct ubicom32sd_card ip7145dpf_portf_sd_cards[] = {
++ [0] = {
++ .pin_wp = IP7145DPF_IOB0,
++ .wp_polarity = 1,
++ .pin_pwr = IP7145DPF_IOB4,
++ .pin_cd = GPIO_RA_4,
++ },
++ [1] = {
++ .pin_wp = IP7145DPF_IOB1,
++ .wp_polarity = 1,
++ .pin_pwr = IP7145DPF_IOB5,
++ .pin_cd = GPIO_RA_6,
++ },
++};
++
++static struct ubicom32sd_platform_data ip7145dpf_portf_sd_platform_data = {
++ .ncards = 2,
++ .cards = ip7145dpf_portf_sd_cards,
++};
++
++static struct platform_device ip7145dpf_portf_sd_device = {
++ .name = "ubicom32sd",
++ .id = 0,
++ .resource = ip7145dpf_portf_sd_resources,
++ .num_resources = ARRAY_SIZE(ip7145dpf_portf_sd_resources),
++ .dev = {
++ .platform_data = &ip7145dpf_portf_sd_platform_data,
++ },
++
++};
++
++/*
++ * ip7145dpf_portf_sd_init
++ */
++static void ip7145dpf_portf_sd_init(void)
++{
++ /*
++ * Check the device tree for the sd_tio
++ */
++ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd");
++ if (!sd_node) {
++ printk(KERN_INFO "PortF SDTIO not found\n");
++ return;
++ }
++
++ /*
++ * Fill in the resources and platform data from devtree information
++ */
++ ip7145dpf_portf_sd_resources[0].start = sd_node->dn.sendirq;
++ ip7145dpf_portf_sd_resources[1].start = sd_node->dn.recvirq;
++ ip7145dpf_portf_sd_resources[2].start = (u32_t)&(sd_node->regs);
++ ip7145dpf_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
++
++ platform_device_register(&ip7145dpf_portf_sd_device);
++}
++
++/******************************************************************************
++ * SD/IO Port B (Slot 2) platform data
++ */
++static struct resource ip7145dpf_portb_sd_resources[] = {
++ /*
++ * Send IRQ
++ */
++ [0] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Receive IRQ
++ */
++ [1] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Memory Mapped Registers
++ */
++ [2] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_MEM,
++ },
++};
++
++static struct ubicom32sd_card ip7145dpf_portb_sd_cards[] = {
++ [0] = {
++ .pin_wp = IP7145DPF_IOB2,
++ .wp_polarity = 1,
++ .pin_pwr = IP7145DPF_IOB6,
++ .pin_cd = IP7145DPF_IOB3,
++ },
++};
++
++static struct ubicom32sd_platform_data ip7145dpf_portb_sd_platform_data = {
++ .ncards = 1,
++ .cards = ip7145dpf_portb_sd_cards,
++};
++
++static struct platform_device ip7145dpf_portb_sd_device = {
++ .name = "ubicom32sd",
++ .id = 1,
++ .resource = ip7145dpf_portb_sd_resources,
++ .num_resources = ARRAY_SIZE(ip7145dpf_portb_sd_resources),
++ .dev = {
++ .platform_data = &ip7145dpf_portb_sd_platform_data,
++ },
++
++};
++
++/*
++ * ip7145dpf_portb_sd_init
++ */
++static void ip7145dpf_portb_sd_init(void)
++{
++ /*
++ * Check the device tree for the sd_tio
++ */
++ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd");
++ if (!sd_node) {
++ printk(KERN_INFO "PortB SDTIO not found\n");
++ return;
++ }
++
++ /*
++ * Fill in the resources and platform data from devtree information
++ */
++ ip7145dpf_portb_sd_resources[0].start = sd_node->dn.sendirq;
++ ip7145dpf_portb_sd_resources[1].start = sd_node->dn.recvirq;
++ ip7145dpf_portb_sd_resources[2].start = (u32_t)&(sd_node->regs);
++ ip7145dpf_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
++
++ platform_device_register(&ip7145dpf_portb_sd_device);
++}
++
++
++#ifdef IP7145DPF_USE_MMC_SPI
++/******************************************************************************
++ * SPI over GPIO (MMC_SPI)
++ */
++#include <linux/spi/spi.h>
++#include <linux/spi/mmc_spi.h>
++#include <linux/mmc/host.h>
++#include <asm/ubicom32-spi-gpio.h>
++
++#define MMC_CS GPIO_RF_5 // PF5 D3
++#define MMC_CD GPIO_RA_4 // PA4 CD
++#define MMC_WP IP7145DPF_IOB0 // IOB0 WP
++#define MMC_PWR IP7145DPF_IOB4 // IOB4 PWR
++
++/*
++ * SPI bus over GPIO (for SD card)
++ */
++static struct ubicom32_spi_gpio_platform_data ip7145dpf_spi_gpio_data = {
++ .pin_mosi = GPIO_RF_0, // PF0 CMD
++ .pin_miso = GPIO_RF_2, // PF2 D0
++ .pin_clk = GPIO_RF_1, // PF1 CLK
++ .bus_num = 0, // We'll call this SPI bus 0
++ .num_chipselect = 1, // only one device on this SPI bus
++};
++
++static struct platform_device ip7145dpf_spi_gpio_device = {
++ .name = "ubicom32-spi-gpio",
++ .id = 0,
++ .dev = {
++ .platform_data = &ip7145dpf_spi_gpio_data,
++ },
++};
++
++/*
++ * ip7145dpf_mmc_spi_setpower_slot_a
++ * Set the power state for slot A
++ */
++static void ip7145dpf_mmc_spi_setpower_slot_a(struct device *dev, unsigned int vdd)
++{
++ struct mmc_spi_platform_data *pd = dev->platform_data;
++
++ /*
++ * Power is inverted, we could tell the IOB to do it, but it's cleaner this way.
++ */
++ if ((1 << vdd) & pd->ocr_mask) {
++ gpio_set_value(MMC_PWR, 0);
++ return;
++ }
++ gpio_set_value(MMC_PWR, 1);
++}
++
++/*
++ * ip7145dpf_mmc_spi_get_cd_slot_a
++ * Get the CD bit for slot A
++ */
++static int ip7145dpf_mmc_spi_get_cd_slot_a(struct device *dev)
++{
++ /*
++ * Note that the sense of the GPIO is inverted
++ */
++ return !gpio_get_value(MMC_CD);
++}
++
++/*
++ * ip7145dpf_mmc_spi_get_ro_slot_a
++ * Get the WP bit for slot A
++ */
++static int ip7145dpf_mmc_spi_get_ro_slot_a(struct device *dev)
++{
++ /*
++ * Note that the sense of the GPIO is inverted, we could tell the IOB to do it, but
++ * it's clearer this way.
++ */
++ return !gpio_get_value(MMC_WP);
++}
++
++/*
++ * ip7145dpf_mmc_spi_exit_slot_a
++ * Free the appropriate GPIOs for slot A SD slot.
++ */
++static void ip7145dpf_mmc_spi_exit_slot_a(struct device *dev, void *appdata)
++{
++ gpio_free(MMC_CD);
++ gpio_free(MMC_CS);
++ gpio_free(MMC_WP);
++ gpio_free(MMC_PWR);
++ platform_device_unregister(&ip7145dpf_spi_gpio_device);
++}
++
++/*
++ * ip7145dpf_mmc_spi_init_slot_a
++ * Allocate the appropriate GPIOs for slot A SD slot.
++ * WP is on IOB0, CD is PA4, CS is on PF5
++ * TODO: make CD an interrupt
++ */
++static int ip7145dpf_mmc_spi_init_slot_a(void)
++{
++ int ret = gpio_request(MMC_CD, "mmc-a-cd");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request mmc-a-cd pin\n", __FUNCTION__);
++ return -ENOSYS;
++ }
++ gpio_direction_input(MMC_CD);
++
++ ret = gpio_request(MMC_CS, "mmc-a-cs");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request mmc-a-cs pin\n", __FUNCTION__);
++ goto no_cs;
++ }
++ gpio_direction_output(MMC_CS, 0);
++
++ ret = gpio_request(MMC_WP, "mmc-a-wp");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request mmc-a-wp pin\n", __FUNCTION__);
++ goto no_wp;
++ }
++ gpio_direction_input(MMC_WP);
++
++ /*
++ * Start off with power off
++ */
++ ret = gpio_request(MMC_PWR, "mmc-a-pwr");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request mmc-a-pwr pin\n", __FUNCTION__);
++ goto no_pwr;
++ }
++ ret = gpio_direction_output(MMC_PWR, 1);
++
++ return 0;
++
++no_pwr:
++ gpio_free(MMC_WP);
++
++no_wp:
++ gpio_free(MMC_CS);
++
++no_cs:
++ gpio_free(MMC_CD);
++ return -ENOSYS;
++}
++
++/*
++ * MMC_SPI driver (currently bitbang)
++ */
++static struct mmc_spi_platform_data ip7145dpf_mmc_platform_data = {
++ .ocr_mask = MMC_VDD_33_34,
++ .exit = ip7145dpf_mmc_spi_exit_slot_a,
++ .get_ro = ip7145dpf_mmc_spi_get_ro_slot_a,
++ .get_cd = ip7145dpf_mmc_spi_get_cd_slot_a,
++
++ .setpower = ip7145dpf_mmc_spi_setpower_slot_a,
++ .powerup_msecs = 500,
++
++ .detect_delay = 100,
++
++ .caps = MMC_CAP_NEEDS_POLL,
++};
++
++static struct ubicom32_spi_gpio_controller_data ip7145dpf_mmc_controller_data = {
++ .pin_cs = MMC_CS,
++};
++
++static struct spi_board_info ip7145dpf_spi_board_info[] = {
++ {
++ .modalias = "mmc_spi",
++ .bus_num = 0,
++ .chip_select = 0,
++ .max_speed_hz = 2000000,
++ .platform_data = &ip7145dpf_mmc_platform_data,
++ .controller_data = &ip7145dpf_mmc_controller_data,
++ }
++};
++#endif /* IP7145DPF_USE_MMC_SPI */
++
++/*
++ * ip7145dpf_u72_setup
++ * Called by I2C to tell us that u72 is setup.
++ *
++ * This function is called by I2C to tell us that u72 has been setup. All
++ * devices which rely on this chip being initialized (or even present) need to
++ * be initialized in this function otherwise they may get initialized too early.
++ *
++ * Currently the only device depending on u72 is the SPI
++ */
++static int __init ip7145dpf_u72_setup(struct i2c_client *client, unsigned gpio, unsigned ngpio, void *context)
++{
++#ifdef IP7145DPF_USE_MMC_SPI
++ if (ip7145dpf_mmc_spi_init_slot_a()) {
++ printk(KERN_ERR "%s: could not request mmc resources\n", __FUNCTION__);
++ } else {
++ printk(KERN_INFO "%s: registering SPI resources\n", __FUNCTION__);
++ spi_register_board_info(ip7145dpf_spi_board_info, ARRAY_SIZE(ip7145dpf_spi_board_info));
++ platform_device_register(&ip7145dpf_spi_gpio_device);
++ }
++#else
++ /*
++ * Initialize the Port F/Port B SD slots
++ */
++ ip7145dpf_portf_sd_init();
++ ip7145dpf_portb_sd_init();
++#endif
++ return 0;
++}
++
++/******************************************************************************
++ * LCD VGH on the board at PE6
++ */
++static struct ubicom32lcd_platform_data ip7145dpf_lcd_data = {
++ .vgh_gpio = GPIO_RE_6,
++ .vgh_polarity = true,
++};
++
++static struct platform_device ip7145dpf_lcd_device = {
++ .name = "ubicom32lcd",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip7145dpf_lcd_data,
++ },
++};
++
++/******************************************************************************
++ * Backlight on the board PD0, hardware PWM
++ */
++static struct ubicom32bl_platform_data ip7145dpf_backlight_data = {
++ .type = UBICOM32BL_TYPE_PWM,
++ .pwm_channel = 2,
++ .pwm_prescale = 15,
++ .pwm_period = 60,
++ .default_intensity = 0x80,
++};
++
++static struct platform_device ip7145dpf_backlight_device = {
++ .name = "ubicom32bl",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip7145dpf_backlight_data,
++ },
++};
++
++/******************************************************************************
++ * Ubicom32Input on I2C, U48 MAX7310, address 0x18, 8 bits
++ */
++static struct ubicom32input_i2c_button ip7145dpf_ubicom32input_i2c_u48_buttons[] = {
++ {
++ .type = EV_KEY,
++ .code = KEY_UP,
++ .bit = 0,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_LEFT,
++ .bit = 1,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_RIGHT,
++ .bit = 2,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_DOWN,
++ .bit = 3,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ENTER,
++ .bit = 4,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_MENU,
++ .bit = 5,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ESC,
++ .bit = 6,
++ .active_low = 1,
++ },
++};
++
++static struct ubicom32input_i2c_platform_data ip7145dpf_ubicom32input_i2c_u48_platform_data = {
++ .buttons = ip7145dpf_ubicom32input_i2c_u48_buttons,
++ .nbuttons = ARRAY_SIZE(ip7145dpf_ubicom32input_i2c_u48_buttons),
++ .name = "Ubicom32 Input I2C U48",
++};
++
++/******************************************************************************
++ * Additional GPIO chips
++ */
++static struct pca953x_platform_data ip7145dpf_gpio_u72_platform_data = {
++ .gpio_base = IP7145DPF_U72_BASE,
++ .setup = ip7145dpf_u72_setup,
++};
++
++/******************************************************************************
++ * Devices on the I2C bus
++ */
++static struct i2c_board_info __initdata ip7145dpf_i2c_board_info[] = {
++ /*
++ * U51, S35390A RTC, address 0x30
++ */
++ {
++ .type = "s35390a",
++ .addr = 0x30,
++ },
++
++ /*
++ * U48, MAX7310 IO expander, 8 bits, address 0x18
++ */
++ {
++ .type = "ubicom32in_max7310",
++ .addr = 0x18,
++ .platform_data = &ip7145dpf_ubicom32input_i2c_u48_platform_data,
++ },
++
++ /*
++ * U72, MAX7310 IOB expander, 8 bits, address 0x19
++ */
++ {
++ .type = "max7310",
++ .addr = 0x19,
++ .platform_data = &ip7145dpf_gpio_u72_platform_data,
++ },
++};
++
++/*
++ * I2C bus on the board, SDA PE1, SCL PE2
++ */
++static struct i2c_gpio_platform_data ip7145dpf_i2c_data = {
++ .sda_pin = GPIO_RE_1,
++ .scl_pin = GPIO_RE_2,
++ .sda_is_open_drain = 0,
++ .scl_is_open_drain = 0,
++};
++
++static struct platform_device ip7145dpf_i2c_device = {
++ .name = "i2c-gpio",
++ .id = 0,
++ .dev = {
++ .platform_data = &ip7145dpf_i2c_data,
++ },
++};
++
++/******************************************************************************
++ * Use ubicom32input driver to monitor the various pushbuttons on this board.
++ *
++ * WPS PF12
++ * FACT_DEFAULT PF13
++ * POWER PE4
++ *
++ * Not sutable for the keypad buttons since those run on I2C GPIO. The polling
++ * of ubicom32input would seem to be excessive for this.
++ *
++ * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default
++ */
++static struct ubicom32input_button ip7145dpf_ubicom32input_buttons[] = {
++ {
++ .type = EV_KEY,
++ .code = KEY_FN_F1,
++ .gpio = GPIO_RF_12,
++ .desc = "WPS",
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_FN_F2,
++ .gpio = GPIO_RF_13,
++ .desc = "Factory Default",
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_POWER,
++ .gpio = GPIO_RE_4,
++ .desc = "Power",
++ .active_low = 1,
++ },
++};
++
++static struct ubicom32input_platform_data ip7145dpf_ubicom32input_data = {
++ .buttons = ip7145dpf_ubicom32input_buttons,
++ .nbuttons = ARRAY_SIZE(ip7145dpf_ubicom32input_buttons),
++};
++
++static struct platform_device ip7145dpf_ubicom32input_device = {
++ .name = "ubicom32input",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip7145dpf_ubicom32input_data,
++ },
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7145dpf_devices[] __initdata = {
++ &ip7145dpf_i2c_device,
++ &ip7145dpf_lcd_device,
++ &ip7145dpf_backlight_device,
++ &ip7145dpf_ubicom32input_device,
++};
++
++/*
++ * ip7145dpf_power_off
++ * Called to turn the power off for this board
++ */
++static void ip7145dpf_power_off(void)
++{
++ gpio_set_value(GPIO_RE_5, 0);
++}
++
++/*
++ * ip7145dpf_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip7145dpf_init(void)
++{
++ int ret;
++ struct platform_device *audio_dev;
++
++ ubi_gpio_init();
++
++#ifdef CONFIG_UIO_UBICOM32RING
++ ring_tio_init("decoder_ring");
++#endif
++
++ /*
++ * Start up the video driver first
++ */
++ vdc_tio_init();
++
++ /*
++ * Take over holding of the power from the system
++ */
++ ret = gpio_request(GPIO_RE_5, "power_hold");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request power hold GPIO\n", __FUNCTION__);
++ }
++ gpio_direction_output(GPIO_RE_5, 1);
++ mach_power_off = ip7145dpf_power_off;
++
++ /*
++ * USB SEL_HOST_USB line
++ */
++ ret = gpio_request(GPIO_RF_11, "SEL_HOST_USB");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request SEL_HOST_USB GPIO\n", __FUNCTION__);
++ }
++ gpio_direction_output(GPIO_RF_11, 0);
++
++ /*
++ * Setup audio
++ */
++ audio_dev = audio_tio_alloc("snd-ubi32-generic", "audiotio-i2sout", 0);
++ if (audio_dev) {
++ platform_device_register(audio_dev);
++ }
++
++ /*
++ * Register all of the devices we have on this board
++ */
++ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++ platform_add_devices(ip7145dpf_devices, ARRAY_SIZE(ip7145dpf_devices));
++
++ /*
++ * Register all of the devices which sit on the I2C bus
++ */
++ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++ i2c_register_board_info(0, ip7145dpf_i2c_board_info, ARRAY_SIZE(ip7145dpf_i2c_board_info));
++
++ /*
++ * We have to initialize the SPI after the I2C IOB gets setup. SPI is initialized in
++ * ip7145dpf_u72_setup
++ */
++
++ return 0;
++}
++
++arch_initcall(ip7145dpf_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7160bringup.c
+@@ -0,0 +1,135 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7160bringup.c
++ * Support for the IP7160 bringup board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <linux/leds.h>
++#include <linux/delay.h>
++#include <linux/input.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32input.h>
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++#include <asm/ubicom32suart.h>
++#endif
++
++/*
++ * Use ubicom32input driver to monitor the various pushbuttons on this board.
++ *
++ * WPS PD5
++ * FACT_DEFAULT PD6
++ *
++ * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default
++ */
++static struct ubicom32input_button ip7160bringup_ubicom32input_buttons[] = {
++ {
++ .type = EV_KEY,
++ .code = KEY_FN_F1,
++ .gpio = GPIO_RD_5,
++ .desc = "WPS",
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_FN_F2,
++ .gpio = GPIO_RD_6,
++ .desc = "Factory Default",
++ .active_low = 1,
++ },
++};
++
++static struct ubicom32input_platform_data ip7160bringup_ubicom32input_data = {
++ .buttons = ip7160bringup_ubicom32input_buttons,
++ .nbuttons = ARRAY_SIZE(ip7160bringup_ubicom32input_buttons),
++};
++
++static struct platform_device ip7160bringup_ubicom32input_device = {
++ .name = "ubicom32input",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip7160bringup_ubicom32input_data,
++ },
++};
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++static struct resource ip7160bringup_ubicom32_suart_resources[] = {
++ {
++ .start = RE,
++ .end = RE,
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .start = PORT_OTHER_INT(RE),
++ .end = PORT_OTHER_INT(RE),
++ .flags = IORESOURCE_IRQ,
++ },
++ {
++ .start = 250000000,
++ .end = 250000000,
++ .flags = UBICOM32_SUART_IORESOURCE_CLOCK,
++ },
++};
++
++static struct platform_device ip7160bringup_ubicom32_suart_device = {
++ .name = "ubicom32suart",
++ .id = -1,
++ .num_resources = ARRAY_SIZE(ip7160bringup_ubicom32_suart_resources),
++ .resource = ip7160bringup_ubicom32_suart_resources,
++};
++#endif
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7160bringup_devices[] __initdata = {
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++ &ip7160bringup_ubicom32_suart_device,
++#endif
++ &ip7160bringup_ubicom32input_device,
++};
++
++/*
++ * ip7160bringup_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip7160bringup_init(void)
++{
++ board_init();
++
++ ubi_gpio_init();
++
++ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++ platform_add_devices(ip7160bringup_devices, ARRAY_SIZE(ip7160bringup_devices));
++
++ return 0;
++}
++
++arch_initcall(ip7160bringup_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7160dpf.c
+@@ -0,0 +1,327 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7160dpf.c
++ * Platform initialization for ip7160dpf board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++#include <linux/gpio.h>
++
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++
++#include <linux/input.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32hid.h>
++#include <asm/vdc_tio.h>
++#include <asm/audio_tio.h>
++
++/*
++ * Backlight on the board PD0, hardware PWM
++ */
++static const struct ubicom32hid_button ip7160dpf_ubicom32hid_buttons[] = {
++ {
++ .type = EV_KEY,
++ .code = KEY_UP,
++ .bit = 0,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_LEFT,
++ .bit = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_RIGHT,
++ .bit = 2,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_DOWN,
++ .bit = 3,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ENTER,
++ .bit = 4,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_MENU,
++ .bit = 5,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ESC,
++ .bit = 7,
++ },
++};
++
++static const struct ubicom32hid_ir ip7160dpf_ubicom32hid_ircodes[] = {
++ {
++ .type = EV_KEY,
++ .code = KEY_UP,
++ .ir_code = 0xF807916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_DOWN,
++ .ir_code = 0xF20D916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_LEFT,
++ .ir_code = 0xF609916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_RIGHT,
++ .ir_code = 0xF40B916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ENTER,
++ .ir_code = 0xF50A916E
++ },
++ { /* rotate */
++ .type = EV_KEY,
++ .code = KEY_FN_F1,
++ .ir_code = 0xF906916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_MENU,
++ .ir_code = 0xF708916E
++ },
++ { /* font size */
++ .type = EV_KEY,
++ .code = KEY_FN_F2,
++ .ir_code = 0xF30C916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ESC,
++ .ir_code = 0xF10E916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_VOLUMEUP,
++ .ir_code = 0xF00F916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_VOLUMEDOWN,
++ .ir_code = 0xED12916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_MUTE,
++ .ir_code = 0xEA15916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_INFO,
++ .ir_code = 0xEF10916E
++ },
++ { /* Like */
++ .type = EV_KEY,
++ .code = KEY_FN_F3,
++ .ir_code = 0xEE11916E
++ },
++ { /* Dislike */
++ .type = EV_KEY,
++ .code = KEY_FN_F4,
++ .ir_code = 0xEB14916E
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_POWER,
++ .ir_code = 0xFD02916E
++ },
++};
++
++static struct ubicom32hid_platform_data ip7160dpf_ubicom32hid_platform_data = {
++ .gpio_reset = GPIO_RI_5,
++ .gpio_reset_polarity = 0,
++ .type = UBICOM32HID_BL_TYPE_PWM,
++ .invert = 0,
++ .default_intensity = 128,
++ .buttons = ip7160dpf_ubicom32hid_buttons,
++ .nbuttons = ARRAY_SIZE(ip7160dpf_ubicom32hid_buttons),
++ .ircodes = ip7160dpf_ubicom32hid_ircodes,
++ .nircodes = ARRAY_SIZE(ip7160dpf_ubicom32hid_ircodes),
++};
++
++/*
++ * Devices on the I2C bus
++ * This board has a "bus 2" which is isolated from the main bus by U47
++ * and pin RI0. It should be safe to always enable bus 2 by setting
++ * RI0 to low, however, it should be noted that on all existing configurations
++ * of this board, U49 and U51 are not populated.
++ */
++static struct i2c_board_info __initdata ip7160dpf_i2c_board_info[] = {
++ /*
++ * U37, CS4350 DAC, address 0x4B, bus 2
++ * THIS ENTRY MUST BE FIRST
++ */
++ {
++ .type = "cs4350",
++ .addr = 0x4B,
++ }
++
++ /*
++ * U24, ubicom32hid
++ */
++ {
++ .type = "ubicom32hid",
++ .addr = 0x08,
++ .platform_data = &ip7160dpf_ubicom32hid_platform_data,
++ },
++
++ /*
++ * U49, ISL29001 Ambient Light Sensor, address 0x44, bus 2 (may not be stuffed)
++ */
++
++ /*
++ * U51, S35390A RTC, address 0x30, bus 2 (may not be stuffed)
++ */
++#ifdef CONFIG_RTC_DRV_S35390A
++ {
++ .type = "s35390a",
++ .addr = 0x30,
++ },
++#endif
++};
++
++/*
++ * I2C bus on the board, SDA PI1, SCL PI2
++ */
++static struct i2c_gpio_platform_data ip7160dpf_i2c_data = {
++ .sda_pin = GPIO_RI_1,
++ .scl_pin = GPIO_RI_2,
++ .sda_is_open_drain = 0,
++ .scl_is_open_drain = 0,
++ .scl_is_output_only = 1,
++ .udelay = 6,
++};
++
++static struct platform_device ip7160dpf_i2c_device = {
++ .name = "i2c-gpio",
++ .id = 0,
++ .dev = {
++ .platform_data = &ip7160dpf_i2c_data,
++ },
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7160dpf_devices[] __initdata = {
++ &ip7160dpf_i2c_device,
++};
++
++/*
++ * ip7160dpf_power_off
++ * Called to turn the power off for this board
++ */
++static void ip7160dpf_power_off(void)
++{
++ gpio_set_value(GPIO_RF_14, 0);
++}
++
++/*
++ * ip7160dpf_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip7160dpf_init(void)
++{
++ int ret;
++ struct platform_device *audio_dev;
++
++ ubi_gpio_init();
++
++ /*
++ * Hold the POWER_HOLD line
++ */
++ ret = gpio_request(GPIO_RF_14, "POWER_HOLD");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request POWER_HOLD GPIO\n", __FUNCTION__);
++ }
++ gpio_direction_output(GPIO_RF_14, 0);
++ mach_power_off = ip7160dpf_power_off;
++
++ /*
++ * USB SEL_HOST_USB line
++ */
++ ret = gpio_request(GPIO_RI_13, "SEL_HOST_USB");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request SEL_HOST_USB GPIO\n", __FUNCTION__);
++ }
++ gpio_direction_output(GPIO_RI_13, 0);
++
++ /*
++ * USB/DAC nRESET line
++ */
++ ret = gpio_request(GPIO_RI_3, "USB_DAC_nRESET");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request USB_DAC_nRESET GPIO\n", __FUNCTION__);
++ }
++ gpio_direction_output(GPIO_RI_3, 0);
++ udelay(1);
++ gpio_direction_output(GPIO_RI_3, 1);
++
++ /*
++ * I2C BUS2 Disable line
++ */
++ ret = gpio_request(GPIO_RI_0, "DISABLE_BUS2");
++ if (ret) {
++ printk(KERN_ERR "%s: could not request DISABLE_BUS2 GPIO\n", __FUNCTION__);
++ }
++ gpio_direction_output(GPIO_RI_0, 0);
++
++ vdc_tio_init();
++
++ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++ platform_add_devices(ip7160dpf_devices, ARRAY_SIZE(ip7160dpf_devices));
++
++ /*
++ * Allocate the audio driver if we can
++ */
++ audio_dev = audio_tio_alloc("snd-ubi32-cs4350", "audiotio-i2sout", 0);
++ if (audio_dev) {
++ ip7160dpf_i2c_board_info[0].platform_data = audio_dev;
++ }
++
++ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++ i2c_register_board_info(0, ip7160dpf_i2c_board_info, ARRAY_SIZE(ip7160dpf_i2c_board_info));
++
++ return 0;
++}
++
++arch_initcall(ip7160dpf_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7160rgw.c
+@@ -0,0 +1,255 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7160rgw.c
++ * Platform initialization for ip7160rgw board.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <linux/leds.h>
++#include <linux/delay.h>
++#include <linux/input.h>
++#include <linux/spi/spi.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32input.h>
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++#include <asm/ubicom32suart.h>
++#endif
++
++#include <asm/ubicom32-spi-gpio.h>
++#include <asm/switch-bcm539x.h>
++
++/*
++ * SPI bus over GPIO for Gigabit Ethernet Switch
++ * U58:
++ * MOSI PE0
++ * MISO PE1
++ * CLK PE3
++ * CS PE2
++ */
++static struct ubicom32_spi_gpio_platform_data ip7160rgw_spi_gpio_data = {
++ .pin_mosi = GPIO_RE_0,
++ .pin_miso = GPIO_RE_1,
++ .pin_clk = GPIO_RE_3,
++ .bus_num = 0, // We'll call this SPI bus 0
++ .num_chipselect = 1, // only one device on this SPI bus
++ .clk_default = 1,
++};
++
++static struct platform_device ip7160rgw_spi_gpio_device = {
++ .name = "ubicom32-spi-gpio",
++ .id = 0,
++ .dev = {
++ .platform_data = &ip7160rgw_spi_gpio_data,
++ },
++};
++
++static struct ubicom32_spi_gpio_controller_data ip7160rgw_bcm539x_controller_data = {
++ .pin_cs = GPIO_RE_2,
++};
++
++static struct switch_bcm539x_platform_data ip7160rgw_bcm539x_platform_data = {
++ .flags = SWITCH_BCM539X_FLAG_HW_RESET,
++ .pin_cs = GPIO_RE_2,
++ .pin_reset = GPIO_RE_4,
++ .name = "bcm539x",
++};
++
++static struct spi_board_info ip7160rgw_spi_board_info[] = {
++ {
++ .modalias = "bcm539x-spi",
++ .bus_num = 0,
++ .chip_select = 0,
++ .max_speed_hz = 2000000,
++ .platform_data = &ip7160rgw_bcm539x_platform_data,
++ .controller_data = &ip7160rgw_bcm539x_controller_data,
++ .mode = SPI_MODE_3,
++ }
++};
++
++/*
++ * LEDs
++ *
++ * WLAN1 PD0 (PWM capable)
++ * WLAN2 PD1
++ * USB2.0 PD2
++ * Status PD3
++ * WPS PD4
++ *
++ * TODO: check triggers, are they generic?
++ */
++static struct gpio_led ip7160rgw_gpio_leds[] = {
++ {
++ .name = "d53:green:WLAN1",
++ .default_trigger = "WLAN1",
++ .gpio = GPIO_RD_0,
++ .active_low = 1,
++ },
++ {
++ .name = "d54:green:WLAN2",
++ .default_trigger = "WLAN2",
++ .gpio = GPIO_RD_1,
++ .active_low = 1,
++ },
++ {
++ .name = "d55:green:USB",
++ .default_trigger = "USB",
++ .gpio = GPIO_RD_2,
++ .active_low = 1,
++ },
++ {
++ .name = "d56:green:Status",
++ .default_trigger = "Status",
++ .gpio = GPIO_RD_3,
++ .active_low = 1,
++ },
++ {
++ .name = "d57:green:WPS",
++ .default_trigger = "WPS",
++ .gpio = GPIO_RD_4,
++ .active_low = 1,
++ },
++};
++
++static struct gpio_led_platform_data ip7160rgw_gpio_led_platform_data = {
++ .num_leds = 5,
++ .leds = ip7160rgw_gpio_leds,
++};
++
++static struct platform_device ip7160rgw_gpio_leds_device = {
++ .name = "leds-gpio",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip7160rgw_gpio_led_platform_data,
++ },
++};
++
++/*
++ * Use ubicom32input driver to monitor the various pushbuttons on this board.
++ *
++ * WPS PD5
++ * FACT_DEFAULT PD6
++ *
++ * TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default
++ */
++static struct ubicom32input_button ip7160rgw_ubicom32input_buttons[] = {
++ {
++ .type = EV_KEY,
++ .code = KEY_FN_F1,
++ .gpio = GPIO_RD_5,
++ .desc = "WPS",
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_FN_F2,
++ .gpio = GPIO_RD_6,
++ .desc = "Factory Default",
++ .active_low = 1,
++ },
++};
++
++static struct ubicom32input_platform_data ip7160rgw_ubicom32input_data = {
++ .buttons = ip7160rgw_ubicom32input_buttons,
++ .nbuttons = ARRAY_SIZE(ip7160rgw_ubicom32input_buttons),
++};
++
++static struct platform_device ip7160rgw_ubicom32input_device = {
++ .name = "ubicom32input",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip7160rgw_ubicom32input_data,
++ },
++};
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++static struct resource ip7160rgw_ubicom32_suart_resources[] = {
++ {
++ .start = RE,
++ .end = RE,
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .start = PORT_OTHER_INT(RE),
++ .end = PORT_OTHER_INT(RE),
++ .flags = IORESOURCE_IRQ,
++ },
++ {
++ .start = 250000000,
++ .end = 250000000,
++ .flags = UBICOM32_SUART_IORESOURCE_CLOCK,
++ },
++};
++
++static struct platform_device ip7160rgw_ubicom32_suart_device = {
++ .name = "ubicom32suart",
++ .id = -1,
++ .num_resources = ARRAY_SIZE(ip7160rgw_ubicom32_suart_resources),
++ .resource = ip7160rgw_ubicom32_suart_resources,
++};
++#endif
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7160rgw_devices[] __initdata = {
++#ifdef CONFIG_SERIAL_UBI32_SERDES
++ &ip7160rgw_ubicom32_suart_device,
++#endif
++ &ip7160rgw_ubicom32input_device,
++ &ip7160rgw_gpio_leds_device,
++ &ip7160rgw_spi_gpio_device,
++};
++
++/*
++ * ip7160rgw_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip7160rgw_init(void)
++{
++ board_init();
++
++ /*
++ * Rev 1.2 boards have spi in a different place than 1.1/1.0
++ */
++ if (strcmp(board_get_revision(), "1.2") == 0) {
++ ip7160rgw_spi_gpio_data.pin_mosi = GPIO_RD_7;
++ }
++
++ ubi_gpio_init();
++
++ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++ platform_add_devices(ip7160rgw_devices, ARRAY_SIZE(ip7160rgw_devices));
++
++ printk(KERN_INFO "%s: registering SPI resources\n", __FUNCTION__);
++ spi_register_board_info(ip7160rgw_spi_board_info, ARRAY_SIZE(ip7160rgw_spi_board_info));
++
++ return 0;
++}
++
++arch_initcall(ip7160rgw_init);
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7500av.c
+@@ -0,0 +1,167 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7500av.c
++ * Support for IP7500 Audio Video Board + CPU module board.
++ *
++ * This file supports the IP7500 Audio Video Board:
++ * 8007-0810 Rev 1.0
++ * with one of the following CPU module boards:
++ * 8007-0510 Rev 1.0
++ * 8007-0510A Rev 1.0 (with ethernet)
++ *
++ * DIP Switch SW2 configuration: (*) default
++ * POS 1: on(*) = PCI enabled, off = PCI disabled
++ * POS 2: on(*) = TTYX => PA6, off = TTYX => PF12
++ * POS 3: on(*) = TTYY => PA7, off = TTYY => PF15
++ * POS 4: unused
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ring_tio.h>
++#include <asm/vdc_tio.h>
++#include <asm/audio_tio.h>
++#include <asm/ubi32-cs4384.h>
++
++/******************************************************************************
++ * Devices on the I2C bus
++ *
++ * BEWARE of changing the order of things in this array as we depend on
++ * certain things to be in certain places.
++ */
++static struct i2c_board_info __initdata ip7500av_i2c_board_info[] = {
++ /*
++ * U6, CS4384 DAC, address 0x19
++ */
++ {
++ .type = "cs4384",
++ .addr = 0x19,
++ },
++};
++
++/*
++ * I2C bus on the board, SDA PD1, SCL PD2
++ */
++static struct i2c_gpio_platform_data ip7500av_i2c_data = {
++ .sda_pin = GPIO_RD_6,
++ .scl_pin = GPIO_RD_3,
++ .sda_is_open_drain = 0,
++ .scl_is_open_drain = 0,
++ .udelay = 50,
++};
++
++static struct platform_device ip7500av_i2c_device = {
++ .name = "i2c-gpio",
++ .id = 0,
++ .dev = {
++ .platform_data = &ip7500av_i2c_data,
++ },
++};
++
++/*
++ * List of possible mclks we can generate. This depends on the CPU frequency.
++ */
++static struct ubi32_cs4384_mclk_entry ip7500av_cs4384_mclk_entries[] = {
++ {
++ .rate = 12288000,
++ .div = 44,
++ },
++ {
++ .rate = 11289600,
++ .div = 48,
++ },
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7500av_devices[] __initdata = {
++ &ip7500av_i2c_device,
++};
++
++/*
++ * ip7500av_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip7500av_init(void)
++{
++ struct platform_device *audio_dev;
++ struct platform_device *audio_dev2;
++ struct ubi32_cs4384_platform_data *cs4384_pd;
++
++ board_init();
++
++ vdc_tio_init();
++
++ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++ platform_add_devices(ip7500av_devices, ARRAY_SIZE(ip7500av_devices));
++
++ /*
++ * CS4384 DAC
++ */
++ audio_dev = audio_tio_alloc("snd-ubi32-cs4384", "audiotio-i2sout",
++ sizeof(struct ubi32_cs4384_platform_data));
++ if (audio_dev) {
++ /*
++ * Attempt to figure out a good divisor. This will only work
++ * assuming the core frequency is compatible.
++ */
++ int i;
++ unsigned int freq = processor_frequency();
++ for (i = 0; i < ARRAY_SIZE(ip7500av_cs4384_mclk_entries); i++) {
++ unsigned int div;
++ unsigned int rate = ip7500av_cs4384_mclk_entries[i].rate / 1000;
++ div = ((freq / rate) + 500) / 1000;
++ ip7500av_cs4384_mclk_entries[i].div = div;
++ printk("CS4384 mclk %d rate %u000Hz div %u act %u\n", i, rate, div, freq / div);
++ }
++
++ cs4384_pd = audio_tio_priv(audio_dev);
++ cs4384_pd->mclk_src = UBI32_CS4384_MCLK_PWM_0;
++ cs4384_pd->n_mclk = ARRAY_SIZE(ip7500av_cs4384_mclk_entries);
++ cs4384_pd->mclk_entries = ip7500av_cs4384_mclk_entries;
++ ip7500av_i2c_board_info[0].platform_data = audio_dev;
++ }
++
++ /*
++ * SPDIF port
++ */
++ audio_dev2 = audio_tio_alloc("snd-ubi32-generic", "audiotio-spdifout", 0);
++ if (audio_dev2) {
++ platform_device_register(audio_dev2);
++ }
++
++ /*
++ * Register all of the devices which sit on the I2C bus
++ */
++ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++ i2c_register_board_info(0, ip7500av_i2c_board_info, ARRAY_SIZE(ip7500av_i2c_board_info));
++
++ ubi_gpio_init();
++
++ return 0;
++}
++arch_initcall(ip7500av_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7500media.c
+@@ -0,0 +1,520 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7500media.c
++ * Board file for IP7500 media board.
++ *
++ * Supports the following configuration
++ * CPU Module:
++ * P/N 8007-0510 rev 1.0
++ * DIP Switch SW2 configuration:
++ * POS 1: on = PCI enabled
++ * POS 2: off = TTYX => PF12
++ * POS 3: off = TTYY => PF15
++ * POS 4: unused
++ * Media Board:
++ * P/N 8007-0610 rev 1.0
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++
++#include <linux/input.h>
++
++#include <linux/i2c.h>
++#include <linux/i2c-gpio.h>
++#include <linux/i2c/pca953x.h>
++
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ubicom32input_i2c.h>
++#include <asm/ubicom32bl.h>
++#include <asm/ubicom32lcd.h>
++#include <asm/vdc_tio.h>
++
++#include <asm/ubicom32sd.h>
++#include <asm/sd_tio.h>
++#include <asm/devtree.h>
++#include <asm/audio_tio.h>
++
++#include <asm/ring_tio.h>
++
++/******************************************************************************
++ * SD/IO Port F (Slot 1) platform data
++ */
++static struct resource ip7500media_portf_sd_resources[] = {
++ /*
++ * Send IRQ
++ */
++ [0] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Receive IRQ
++ */
++ [1] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Memory Mapped Registers
++ */
++ [2] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_MEM,
++ },
++};
++
++static struct ubicom32sd_card ip7500media_portf_sd_cards[] = {
++ [0] = {
++ .pin_wp = IP7500MEDIA_IO16,
++ .wp_polarity = 1,
++ .pin_pwr = IP7500MEDIA_IO20,
++ .pin_cd = IP7500MEDIA_IO23,
++ },
++ [1] = {
++ .pin_wp = IP7500MEDIA_IO17,
++ .wp_polarity = 1,
++ .pin_pwr = IP7500MEDIA_IO21,
++ .pin_cd = IP7500MEDIA_IO24,
++ },
++};
++
++static struct ubicom32sd_platform_data ip7500media_portf_sd_platform_data = {
++ .ncards = 2,
++ .cards = ip7500media_portf_sd_cards,
++};
++
++static struct platform_device ip7500media_portf_sd_device = {
++ .name = "ubicom32sd",
++ .id = 0,
++ .resource = ip7500media_portf_sd_resources,
++ .num_resources = ARRAY_SIZE(ip7500media_portf_sd_resources),
++ .dev = {
++ .platform_data = &ip7500media_portf_sd_platform_data,
++ },
++
++};
++
++/*
++ * ip7500media_portf_sd_init
++ */
++static void ip7500media_portf_sd_init(void)
++{
++ /*
++ * Check the device tree for the sd_tio
++ */
++ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd");
++ if (!sd_node) {
++ printk(KERN_INFO "PortF SDTIO not found\n");
++ return;
++ }
++
++ /*
++ * Fill in the resources and platform data from devtree information
++ */
++ ip7500media_portf_sd_resources[0].start = sd_node->dn.sendirq;
++ ip7500media_portf_sd_resources[1].start = sd_node->dn.recvirq;
++ ip7500media_portf_sd_resources[2].start = (u32_t)&(sd_node->regs);
++ ip7500media_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
++
++ platform_device_register(&ip7500media_portf_sd_device);
++}
++
++/******************************************************************************
++ * SD/IO Port B (Slot 2) platform data
++ */
++static struct resource ip7500media_portb_sd_resources[] = {
++ /*
++ * Send IRQ
++ */
++ [0] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Receive IRQ
++ */
++ [1] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_IRQ,
++ },
++
++ /*
++ * Memory Mapped Registers
++ */
++ [2] = {
++ /*
++ * The init routine will query the devtree and fill this in
++ */
++ .flags = IORESOURCE_MEM,
++ },
++};
++
++static struct ubicom32sd_card ip7500media_portb_sd_cards[] = {
++ [0] = {
++ .pin_wp = IP7500MEDIA_IO19,
++ .wp_polarity = 1,
++ .pin_pwr = IP7500MEDIA_IO22,
++ .pin_cd = IP7500MEDIA_IO18,
++ },
++};
++
++static struct ubicom32sd_platform_data ip7500media_portb_sd_platform_data = {
++ .ncards = 1,
++ .cards = ip7500media_portb_sd_cards,
++};
++
++static struct platform_device ip7500media_portb_sd_device = {
++ .name = "ubicom32sd",
++ .id = 1,
++ .resource = ip7500media_portb_sd_resources,
++ .num_resources = ARRAY_SIZE(ip7500media_portb_sd_resources),
++ .dev = {
++ .platform_data = &ip7500media_portb_sd_platform_data,
++ },
++
++};
++
++/*
++ * ip7500media_portb_sd_init
++ */
++static void ip7500media_portb_sd_init(void)
++{
++ /*
++ * Check the device tree for the sd_tio
++ */
++ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd");
++ if (!sd_node) {
++ printk(KERN_INFO "PortB SDTIO not found\n");
++ return;
++ }
++
++ /*
++ * Fill in the resources and platform data from devtree information
++ */
++ ip7500media_portb_sd_resources[0].start = sd_node->dn.sendirq;
++ ip7500media_portb_sd_resources[1].start = sd_node->dn.recvirq;
++ ip7500media_portb_sd_resources[2].start = (u32_t)&(sd_node->regs);
++ ip7500media_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
++
++ platform_device_register(&ip7500media_portb_sd_device);
++}
++
++/*
++ * ip7500media_u17_setup
++ * Called by I2C to tell us that u17 is setup.
++ *
++ * This function is called by I2C to tell us that u17 has been setup. All
++ * devices which rely on this chip being initialized (or even present) need to
++ * be initialized in this function otherwise they may get initialized too early.
++ *
++ * Currently the only device depending on u17 is the SDIO
++ */
++static int __init ip7500media_u17_setup(struct i2c_client *client, unsigned gpio, unsigned ngpio, void *context)
++{
++ /*
++ * Initialize the Port F/Port B SD slots (only the enabled ports will init)
++ */
++ ip7500media_portf_sd_init();
++ ip7500media_portb_sd_init();
++
++ return 0;
++}
++
++/******************************************************************************
++ * LCD VGH on the board at PE6
++ */
++static struct ubicom32lcd_platform_data ip7500media_lcd_data = {
++ .vgh_gpio = GPIO_RE_7,
++ .vgh_polarity = true,
++};
++
++static struct platform_device ip7500media_lcd_device = {
++ .name = "ubicom32lcd",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip7500media_lcd_data,
++ },
++};
++
++/******************************************************************************
++ * Backlight on the board PD0, hardware PWM
++ */
++static struct ubicom32bl_platform_data ip7500media_backlight_data = {
++ .type = UBICOM32BL_TYPE_PWM,
++ .pwm_channel = 2,
++ .pwm_prescale = 15,
++ .pwm_period = 60,
++ .default_intensity = 0x80,
++};
++
++static struct platform_device ip7500media_backlight_device = {
++ .name = "ubicom32bl",
++ .id = -1,
++ .dev = {
++ .platform_data = &ip7500media_backlight_data,
++ },
++};
++
++/******************************************************************************
++ * Ubicom32Input on I2C, U15 MAX7310, address 0x18, 8 bits
++ */
++static struct ubicom32input_i2c_button ip7500media_ubicom32input_i2c_u15_buttons[] = {
++ {
++ .type = EV_KEY,
++ .code = KEY_LEFT,
++ .bit = 0,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_RIGHT,
++ .bit = 1,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_UP,
++ .bit = 2,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_DOWN,
++ .bit = 3,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ENTER,
++ .bit = 4,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_MENU,
++ .bit = 5,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = KEY_ESC,
++ .bit = 6,
++ .active_low = 1,
++ },
++};
++
++static struct ubicom32input_i2c_platform_data ip7500media_ubicom32input_i2c_u15_platform_data = {
++ .buttons = ip7500media_ubicom32input_i2c_u15_buttons,
++ .nbuttons = ARRAY_SIZE(ip7500media_ubicom32input_i2c_u15_buttons),
++ .name = "Ubicom32 Input I2C U15",
++};
++
++/******************************************************************************
++ * Additional GPIO chips
++ */
++static struct pca953x_platform_data ip7500media_gpio_u16_platform_data = {
++ .gpio_base = IP7500MEDIA_U16_BASE,
++};
++
++static struct pca953x_platform_data ip7500media_gpio_u17_platform_data = {
++ .gpio_base = IP7500MEDIA_U17_BASE,
++ .setup = ip7500media_u17_setup,
++};
++
++static struct pca953x_platform_data ip7500media_gpio_u18_platform_data = {
++ .gpio_base = IP7500MEDIA_U18_BASE,
++};
++
++/******************************************************************************
++ * Devices on the I2C bus
++ *
++ * BEWARE of changing the order of things in this array as we depend on
++ * certain things to be in certain places.
++ */
++static struct i2c_board_info __initdata ip7500media_i2c_board_info[] = {
++ /*
++ * U6, CS4350 DAC, address 0x4B
++ */
++ {
++ .type = "cs4350",
++ .addr = 0x4B,
++ },
++
++ /*
++ * U14, S35390A RTC, address 0x30
++ */
++ {
++ .type = "s35390a",
++ .addr = 0x30,
++ },
++
++ /*
++ * U15, MAX7310 IO expander, 8 bits, address 0x18
++ * IO0: User I/O (J16-1) (Left) IO4: User I/O (J16-5) (Enter)
++ * IO1: User I/O (J16-2) (Right) IO5: User I/O (J16-6) (Menu)
++ * IO2: User I/O (J16-3) (Up) IO6: User I/O (J16-7) (Back)
++ * IO3: User I/O (J16-4) (Down) IO7: User I/O (J16-8)
++ */
++ {
++ .type = "ubicom32in_max7310",
++ .addr = 0x18,
++ .platform_data = &ip7500media_ubicom32input_i2c_u15_platform_data,
++ },
++
++ /*
++ * U16, MAX7310 IO expander, 8 bits, address 0x1C
++ * IO8 : User I/O (J16-9) IO12: User I/O (J16-17)
++ * IO9 : User I/O (J16-10) IO13: User I/O (J16-18)
++ * IO10: User I/O (J16-15) IO14: User I/O (J16-19)
++ * IO11: User I/O (J16-16) IO15: User I/O (J16-20)
++ */
++ {
++ .type = "max7310",
++ .addr = 0x1C,
++ .platform_data = &ip7500media_gpio_u16_platform_data,
++ },
++
++ /*
++ * U17, MAX7310 IO expander, 8 bits, address 0x1A
++ * IO16: SDIO1A_WP IO20: SD1A_PWREN
++ * IO17: SDIO1B_WP IO21: SD1B_PWREN
++ * IO18: SDIO2_CD IO22: SD2_PWREN
++ * IO19: SDIO2_WP IO23: SDIO1A_CD
++ *
++ */
++ {
++ .type = "max7310",
++ .addr = 0x1A,
++ .platform_data = &ip7500media_gpio_u17_platform_data,
++ },
++
++ /*
++ * U18, MAX7310 IOB expander, 8 bits, address 0x1E
++ * IO24: SDIO1B_CD IO28: User I/O TP6
++ * IO25: User I/O TP9 IO29: User I/O TP5
++ * IO26: User I/O TP8 IO30: User I/O TP4
++ * IO27: User I/O TP7 IO31: User I/O TP3
++ */
++ {
++ .type = "max7310",
++ .addr = 0x1E,
++ .platform_data = &ip7500media_gpio_u18_platform_data,
++ },
++};
++
++/*
++ * I2C bus on the board, SDA PE4, SCL PE5
++ */
++static struct i2c_gpio_platform_data ip7500media_i2c_data = {
++ .sda_pin = GPIO_RE_4,
++ .scl_pin = GPIO_RE_5,
++ .sda_is_open_drain = 0,
++ .scl_is_open_drain = 0,
++ .udelay = 50,
++};
++
++static struct platform_device ip7500media_i2c_device = {
++ .name = "i2c-gpio",
++ .id = 0,
++ .dev = {
++ .platform_data = &ip7500media_i2c_data,
++ },
++};
++
++/*
++ * List of all devices in our system
++ */
++static struct platform_device *ip7500media_devices[] __initdata = {
++ &ip7500media_i2c_device,
++ &ip7500media_lcd_device,
++ &ip7500media_backlight_device,
++};
++
++/*
++ * ip7500media_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip7500media_init(void)
++{
++ struct platform_device *audio_dev;
++
++ board_init();
++
++ ubi_gpio_init();
++
++#ifdef CONFIG_UIO_UBICOM32RING
++ ring_tio_init("decoder_ring");
++#endif
++
++ /*
++ * Start up the video driver first
++ */
++ vdc_tio_init();
++
++ /*
++ * Register all of the devices we have on this board
++ */
++ printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
++ platform_add_devices(ip7500media_devices, ARRAY_SIZE(ip7500media_devices));
++
++ /*
++ * Allocate the audio driver if we can
++ */
++ audio_dev = audio_tio_alloc("snd-ubi32-cs4350", "audiotio-i2sout", 0);
++ if (audio_dev) {
++ ip7500media_i2c_board_info[0].platform_data = audio_dev;
++ }
++
++ /*
++ * Register all of the devices which sit on the I2C bus
++ */
++ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
++ i2c_register_board_info(0, ip7500media_i2c_board_info, ARRAY_SIZE(ip7500media_i2c_board_info));
++
++ /*
++ * We have to initialize the SDIO after the I2C IOB gets setup. SDIO is initialized in
++ * ip7500media_u17_setup
++ */
++
++ return 0;
++}
++
++arch_initcall(ip7500media_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/board-ip7500module.c
+@@ -0,0 +1,60 @@
++/*
++ * arch/ubicom32/mach-ip7k/board-ip7500module.c
++ * Support for IP7500 CPU module board.
++ *
++ * This file supports the IP7500 CPU module board:
++ * 8007-0510 Rev 1.0
++ * 8007-0510A Rev 1.0 (with ethernet)
++ *
++ * DIP Switch SW2 configuration: (*) default
++ * POS 1: on(*) = PCI enabled, off = PCI disabled
++ * POS 2: on(*) = TTYX => PA6, off = TTYX => PF12
++ * POS 3: on(*) = TTYY => PA7, off = TTYY => PF15
++ * POS 4: unused
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <asm/board.h>
++#include <asm/machdep.h>
++#include <asm/ring_tio.h>
++#include <asm/vdc_tio.h>
++
++/*
++ * ip7500module_init
++ * Called to add the devices which we have on this board
++ */
++static int __init ip7500module_init(void)
++{
++ board_init();
++
++ ubi_gpio_init();
++
++ return 0;
++}
++
++arch_initcall(ip7500module_init);
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/Kconfig
+@@ -0,0 +1,132 @@
++config IP7145DPF
++ bool "IP7145DPF"
++ select UBICOM32_V4
++ select UBICOM_INPUT
++ select UBICOM_INPUT_I2C
++ select RTC_CLASS
++ select RTC_DRV_S35390A
++ select I2C
++ select I2C_GPIO
++ select GPIO_PCA953X
++ select FB
++ select FB_UBICOM32
++ select BACKLIGHT_LCD_SUPPORT
++ select LCD_CLASS_DEVICE
++ select LCD_UBICOM32
++ select BACKLIGHT_CLASS_DEVICE
++ select BACKLIGHT_UBICOM32
++ select SND_UBI32
++ select MMC_UBICOM32
++ select MMC
++ select MMC_BLOCK
++ select BRD_64MB
++ help
++ IP7145 Digital Picture Frame reference design, supports:
++ 8007-0410 v1.0
++
++config IP7160RGW
++ bool "IP7160RGW"
++ select UBICOM32_V4
++ select UBICOM_INPUT
++ select NEW_LEDS
++ select LEDS_CLASS
++ select LEDS_GPIO
++ select BRD_64MB
++ select SPI
++ select SPI_UBICOM32_GPIO
++ select VLAN_8021Q
++ select UBICOM_SWITCH
++ select UBICOM_SWITCH_BCM539X
++ help
++ Ubicom IP7160 RGW Eval, supports:
++ 8007-0110 v1.0
++ 8007-0111 v1.1
++ 8007-0112 v1.2
++
++config IP7160BRINGUP
++ bool "IP7160BRINGUP"
++ select UBICOM32_V4
++ select NEW_LEDS
++ select LEDS_CLASS
++ select LEDS_GPIO
++ select BRD_64MB
++ help
++ Ubicom IP7160 Bringup, supports:
++ 8007-0010 v1.0
++
++config IP7160DPF
++ bool "IP7160DPF"
++ select UBICOM32_V4
++ select I2C
++ select I2C_GPIO
++ select FB
++ select FB_UBICOM32
++ select BACKLIGHT_LCD_SUPPORT
++ select BACKLIGHT_CLASS_DEVICE
++ select SND_UBI32
++ select SND_UBI32_AUDIO_CS4350
++ select UBICOM_HID
++ select BRD_64MB
++ help
++ IP7160 Digital Picture Frame board, supports:
++ 8007-0211 Rev 1.1
++
++config IP7500MODULE
++ bool "IP7500MODULE"
++ select UBICOM32_V4
++ select BRD_128MB
++ help
++ Ubicom IP7500 CPU Module board, supports:
++ 8007-0510 v1.0
++ 8007-0510A v1.0
++
++ Please see ip7500module.c for more details.
++
++config IP7500AV
++ bool "IP7500AV"
++ select UBICOM32_V4
++ select BRD_128MB
++ select I2C
++ select I2C_GPIO
++ select SND_UBI32
++ select SND_UBI32_AUDIO_CS4384
++ select FB
++ select FB_UBICOM32
++ help
++ Ubicom IP7500 Audio Video board, supports:
++ 8007-0810 v1.0
++
++ With Ubicom IP7500 CPU Module board:
++ 8007-0510 v1.0 -or-
++ 8007-0510A v1.0
++
++ Please see ip7500av.c for more details.
++
++config IP7500MEDIA
++ bool "IP7500MEDIA"
++ select UBICOM32_V4
++ select UBICOM_INPUT_I2C
++ select RTC_CLASS
++ select RTC_DRV_S35390A
++ select I2C
++ select I2C_GPIO
++ select GPIO_PCA953X
++ select FB
++ select FB_UBICOM32
++ select BACKLIGHT_LCD_SUPPORT
++ select LCD_CLASS_DEVICE
++ select LCD_UBICOM32
++ select BACKLIGHT_CLASS_DEVICE
++ select BACKLIGHT_UBICOM32
++ select SND_UBI32
++ select SND_UBI32_AUDIO_CS4350
++ select MMC_UBICOM32
++ select MMC
++ select MMC_BLOCK
++ select BRD_128MB
++ help
++ IP7500 Media Board w/ IP7500 CPU Module board, supports:
++ 8007-0610 v1.0 w/ 8007-0510 v1.0
++
++ Please see ip7500media.c for more details.
++
+--- /dev/null
++++ b/arch/ubicom32/mach-ip7k/Makefile
+@@ -0,0 +1,35 @@
++#
++# arch/ubicom32/mach-ip7k/Makefile
++# Makefile for ip7k based boards.
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++
++obj-$(CONFIG_IP7145DPF) += board-ip7145dpf.o
++obj-$(CONFIG_IP7160RGW) += board-ip7160rgw.o
++obj-$(CONFIG_IP7160BRINGUP) += board-ip7160bringup.o
++obj-$(CONFIG_IP7160DPF) += board-ip7160dpf.o
++obj-$(CONFIG_IP7500MODULE) += board-ip7500module.o
++obj-$(CONFIG_IP7500MEDIA) += board-ip7500media.o
++obj-$(CONFIG_IP7500AV) += board-ip7500av.o
+--- /dev/null
++++ b/arch/ubicom32/Makefile
+@@ -0,0 +1,103 @@
++#
++# arch/ubicom32/Makefile
++# <TODO: Replace with short file description>
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++
++KBUILD_DEFCONFIG :=
++
++# setup the machine name and machine dependent settings
++machine-$(CONFIG_UBICOM32_V3) := ip5k
++machine-$(CONFIG_UBICOM32_V4) := ip7k
++MACHINE := $(machine-y)
++export MACHINE
++
++model-$(CONFIG_RAMKERNEL) := ram
++model-$(CONFIG_ROMKERNEL) := rom
++MODEL := $(model-y)
++export MODEL
++
++CPUCLASS := $(cpuclass-y)
++
++export CPUCLASS
++
++#
++# We want the core kernel built using the fastcall ABI but modules need
++# to be built using the slower calling convention because they could be
++# loaded out of range for fast calls.
++#
++CFLAGS_KERNEL += -mfastcall
++CFLAGS_MODULE += -mno-fastcall
++
++#
++# Some CFLAG additions based on specific CPU type.
++#
++cflags-$(CONFIG_UBICOM32_V3) := -march=ubicom32v3 -mno-fdpic -DIP5000
++cflags-$(CONFIG_UBICOM32_V4) := -march=ubicom32v4 -mno-fdpic -DIP7000
++
++ldflags-$(CONFIG_LINKER_RELAXATION) := --relax
++LDFLAGS_vmlinux := $(ldflags-y)
++
++GCCLIBDIR := $(dir $(shell $(CC) $(cflags-y) -print-libgcc-file-name))
++
++KBUILD_CFLAGS += $(cflags-y) -ffunction-sections
++KBUILD_AFLAGS += $(cflags-y)
++
++KBUILD_CFLAGS += -D__linux__ -Dlinux
++KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
++
++# include any machine specific directory
++ifneq ($(machine-y),)
++core-y += arch/$(ARCH)/mach-$(MACHINE)/
++endif
++
++head-y := arch/$(ARCH)/kernel/head.o
++
++core-y += arch/$(ARCH)/kernel/ \
++ arch/$(ARCH)/mm/ \
++ arch/$(ARCH)/crypto/ \
++ arch/$(ARCH)/mach-common/
++
++drivers-$(CONFIG_OPROFILE) += arch/ubicom32/oprofile/
++
++libs-y += arch/$(ARCH)/lib/
++
++archclean:
++
++# make sure developer has selected a valid board
++ifeq ($(CONFIG_NOBOARD),y)
++# $(error have to select a valid board file $(CONFIG_NOBOARD), please run kernel config again)
++_all: config_board_error
++endif
++
++config_board_error:
++ @echo "*************************************************"
++ @echo "You have not selected a proper board."
++ @echo "Please run menuconfig (or config) against your"
++ @echo "kernel and choose your board under Processor"
++ @echo "options"
++ @echo "*************************************************"
++ @exit 1
++
+--- /dev/null
++++ b/arch/ubicom32/mm/fault.c
+@@ -0,0 +1,81 @@
++/*
++ * arch/ubicom32/mm/fault.c
++ * Ubicom32 architecture page fault implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>,
++ * Copyright (C) 2000 Lineo, Inc. (www.lineo.com)
++ *
++ * Based on:
++ *
++ * linux/arch/m68k/mm/fault.c
++ *
++ * Copyright (C) 1995 Hamish Macdonald
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/mman.h>
++#include <linux/mm.h>
++#include <linux/kernel.h>
++#include <linux/ptrace.h>
++
++#include <asm/system.h>
++#include <asm/pgtable.h>
++
++extern void die_if_kernel(char *, struct pt_regs *, long);
++
++/*
++ * This routine handles page faults. It determines the problem, and
++ * then passes it off to one of the appropriate routines.
++ *
++ * error_code:
++ * bit 0 == 0 means no page found, 1 means protection fault
++ * bit 1 == 0 means read, 1 means write
++ *
++ * If this routine detects a bad access, it returns 1, otherwise it
++ * returns 0.
++ */
++asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
++ unsigned long error_code)
++{
++#ifdef DEBUG
++ printk (KERN_DEBUG "regs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld\n",
++ regs->sr, regs->pc, address, error_code);
++#endif
++
++ /*
++ * Oops. The kernel tried to access some bad page. We'll have to
++ * terminate things with extreme prejudice.
++ */
++ if ((unsigned long) address < PAGE_SIZE) {
++ printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
++ } else
++ printk(KERN_ALERT "Unable to handle kernel access");
++ printk(KERN_ALERT " at virtual address %08lx\n",address);
++ die_if_kernel("Oops", regs, error_code);
++ do_exit(SIGKILL);
++
++ return 1;
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mm/init.c
+@@ -0,0 +1,261 @@
++/*
++ * arch/ubicom32/mm/init.c
++ * Ubicom32 architecture virtual memory initialization.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>,
++ * Kenneth Albanowski <kjahds@kjahds.com>,
++ * Copyright (C) 2000 Lineo, Inc. (www.lineo.com)
++ *
++ * Based on:
++ *
++ * linux/arch/m68k/mm/init.c
++ *
++ * Copyright (C) 1995 Hamish Macdonald
++ *
++ * JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com)
++ * DEC/2000 -- linux 2.4 support <davidm@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/signal.h>
++#include <linux/sched.h>
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/types.h>
++#include <linux/ptrace.h>
++#include <linux/mman.h>
++#include <linux/mm.h>
++#include <linux/swap.h>
++#include <linux/init.h>
++#include <linux/highmem.h>
++#include <linux/pagemap.h>
++#include <linux/bootmem.h>
++#include <linux/slab.h>
++
++#include <asm/setup.h>
++#include <asm/segment.h>
++#include <asm/page.h>
++#include <asm/pgtable.h>
++#include <asm/system.h>
++#include <asm/machdep.h>
++#include <asm/ocm-alloc.h>
++
++#undef DEBUG
++
++extern void die_if_kernel(char *,struct pt_regs *,long);
++extern void free_initmem(void);
++
++/*
++ * BAD_PAGE is the page that is used for page faults when linux
++ * is out-of-memory. Older versions of linux just did a
++ * do_exit(), but using this instead means there is less risk
++ * for a process dying in kernel mode, possibly leaving a inode
++ * unused etc..
++ *
++ * BAD_PAGETABLE is the accompanying page-table: it is initialized
++ * to point to BAD_PAGE entries.
++ *
++ * ZERO_PAGE is a special page that is used for zero-initialized
++ * data and COW.
++ */
++static unsigned long empty_bad_page_table;
++
++static unsigned long empty_bad_page;
++
++unsigned long empty_zero_page;
++
++void show_mem(void)
++{
++ unsigned long i;
++ int free = 0, total = 0, reserved = 0, shared = 0;
++ int cached = 0;
++
++ printk(KERN_INFO "\nMem-info:\n");
++ show_free_areas();
++ i = max_mapnr;
++ while (i-- > 0) {
++ total++;
++ if (PageReserved(mem_map+i))
++ reserved++;
++ else if (PageSwapCache(mem_map+i))
++ cached++;
++ else if (!page_count(mem_map+i))
++ free++;
++ else
++ shared += page_count(mem_map+i) - 1;
++ }
++ printk(KERN_INFO "%d pages of RAM\n",total);
++ printk(KERN_INFO "%d free pages\n",free);
++ printk(KERN_INFO "%d reserved pages\n",reserved);
++ printk(KERN_INFO "%d pages shared\n",shared);
++ printk(KERN_INFO "%d pages swap cached\n",cached);
++}
++
++extern unsigned long memory_start;
++extern unsigned long memory_end;
++extern char __ocm_free_begin;
++extern char __ocm_free_end;
++
++/*
++ * paging_init() continues the virtual memory environment setup which
++ * was begun by the code in arch/head.S.
++ * The parameters are pointers to where to stick the starting and ending
++ * addresses of available kernel virtual memory.
++ */
++void __init paging_init(void)
++{
++ /*
++ * Make sure start_mem is page aligned, otherwise bootmem and
++ * page_alloc get different views of the world.
++ */
++#ifdef DEBUG
++ unsigned long start_mem = PAGE_ALIGN(memory_start);
++#endif
++ unsigned long end_mem = memory_end & PAGE_MASK;
++
++#ifdef DEBUG
++ printk (KERN_DEBUG "start_mem is %#lx\nvirtual_end is %#lx\n",
++ start_mem, end_mem);
++#endif
++
++ /*
++ * Initialize the bad page table and bad page to point
++ * to a couple of allocated pages.
++ */
++ empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
++ empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
++ empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
++ memset((void *)empty_zero_page, 0, PAGE_SIZE);
++
++ /*
++ * TODO: enable setting up for user memory management interface.
++ */
++
++#ifdef DEBUG
++ printk (KERN_DEBUG "before free_area_init\n");
++
++ printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n",
++ start_mem, end_mem);
++#endif
++
++ {
++ unsigned long zones_size[MAX_NR_ZONES] = {0, };
++#ifdef CONFIG_ZONE_DMA
++ zones_size[ZONE_DMA] = OCMSIZE >> PAGE_SHIFT;
++#endif
++ zones_size[ZONE_NORMAL] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
++#ifdef CONFIG_HIGHMEM
++ zones_size[ZONE_HIGHMEM] = 0;
++#endif
++ free_area_init(zones_size);
++ }
++}
++
++void __init mem_init(void)
++{
++ int codek = 0, datak = 0, initk = 0;
++ unsigned long tmp;
++ extern char _etext, _stext, _sdata, _ebss, __init_begin, __init_end;
++ unsigned long len = CONFIG_RAMSIZE + OCMSIZE;
++ unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */
++ unsigned long end_mem = memory_end; /* DAVIDM - this must not include kernel stack at top */
++
++#ifdef DEBUG
++ printk(KERN_DEBUG "Mem_init: start=%lx, end=%lx\n", start_mem, end_mem);
++#endif
++
++ end_mem &= PAGE_MASK;
++ high_memory = (void *) end_mem;
++
++ start_mem = PAGE_ALIGN(start_mem);
++ max_mapnr = num_physpages = (((unsigned long) high_memory) - PAGE_OFFSET) >> PAGE_SHIFT;
++
++ /* this will put all memory onto the freelists */
++#ifdef CONFIG_ZONE_DMA
++ {
++ unsigned long ocm_free_begin = (unsigned long)&__ocm_free_begin;
++ unsigned long ocm_free_end = (unsigned long)&__ocm_free_end;
++ unsigned long zone_dma_begin = (ocm_free_begin + PAGE_SIZE - 1) & PAGE_MASK;
++ unsigned long zone_dma_end = ocm_free_end & PAGE_MASK;
++ if (zone_dma_end > zone_dma_begin)
++ free_bootmem(zone_dma_begin, zone_dma_end-zone_dma_begin);
++ }
++#endif
++ totalram_pages = free_all_bootmem();
++
++ codek = (&_etext - &_stext) >> 10;
++ datak = (&_ebss - &_sdata) >> 10;
++ initk = (&__init_begin - &__init_end) >> 10;
++
++ tmp = nr_free_pages() << PAGE_SHIFT;
++ printk(KERN_INFO "Memory available: %luk/%luk RAM, (%dk kernel code, %dk data)\n",
++ tmp >> 10,
++ len >> 10,
++ codek,
++ datak
++ );
++
++}
++
++#ifdef CONFIG_BLK_DEV_INITRD
++void free_initrd_mem(unsigned long start, unsigned long end)
++{
++ int pages = 0;
++ for (; start < end; start += PAGE_SIZE) {
++ ClearPageReserved(virt_to_page(start));
++ init_page_count(virt_to_page(start));
++ free_page(start);
++ totalram_pages++;
++ pages++;
++ }
++ printk (KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages);
++}
++#endif
++
++void
++free_initmem()
++{
++#ifdef CONFIG_RAMKERNEL
++ unsigned long addr;
++ extern char __init_begin, __init_end;
++ /*
++ * The following code should be cool even if these sections
++ * are not page aligned.
++ */
++ addr = PAGE_ALIGN((unsigned long)(&__init_begin));
++ /* next to check that the page we free is not a partial page */
++ for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) {
++ ClearPageReserved(virt_to_page(addr));
++ init_page_count(virt_to_page(addr));
++ free_page(addr);
++ totalram_pages++;
++ }
++ printk(KERN_NOTICE "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n",
++ (addr - PAGE_ALIGN((long) &__init_begin)) >> 10,
++ (int)(PAGE_ALIGN((unsigned long)(&__init_begin))),
++ (int)(addr - PAGE_SIZE));
++#endif
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mm/kmap.c
+@@ -0,0 +1,79 @@
++/*
++ * arch/ubicom32/mm/kmap.c
++ * Ubicom32 architecture non-mmu ioremap and friends implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2000 Lineo, <davidm@snapgear.com>
++ * Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com>
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/mm.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/types.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++
++#include <asm/setup.h>
++#include <asm/segment.h>
++#include <asm/page.h>
++#include <asm/pgalloc.h>
++#include <asm/io.h>
++#include <asm/system.h>
++
++#undef DEBUG
++
++/*
++ * Map some physical address range into the kernel address space.
++ */
++void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
++{
++ return (void *)physaddr;
++}
++
++/*
++ * Unmap a ioremap()ed region again.
++ */
++void iounmap(void *addr)
++{
++}
++
++/*
++ * __iounmap unmaps nearly everything, so be careful
++ * it doesn't free currently pointer/page tables anymore but it
++ * wans't used anyway and might be added later.
++ */
++void __iounmap(void *addr, unsigned long size)
++{
++}
++
++/*
++ * Set new cache mode for some kernel address space.
++ * The caller must push data for that range itself, if such data may already
++ * be in the cache.
++ */
++void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
++{
++}
+--- /dev/null
++++ b/arch/ubicom32/mm/Makefile
+@@ -0,0 +1,32 @@
++#
++# arch/ubicom32/mm/Makefile
++# <TODO: Replace with short file description>
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++#
++# Makefile for the linux m68knommu specific parts of the memory manager.
++#
++
++obj-y += init.o fault.o memory.o kmap.o ocm-alloc.o
+--- /dev/null
++++ b/arch/ubicom32/mm/memory.c
+@@ -0,0 +1,59 @@
++/*
++ * arch/ubicom32/mm/memory.c
++ * Ubicom32 architecture kernel_map() implementation.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>,
++ * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
++ *
++ * Based on:
++ *
++ * linux/arch/m68k/mm/memory.c
++ *
++ * Copyright (C) 1995 Hamish Macdonald
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/mm.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/types.h>
++#include <linux/slab.h>
++
++#include <asm/segment.h>
++#include <asm/page.h>
++#include <asm/pgtable.h>
++#include <asm/system.h>
++
++/*
++ * Map some physical address range into the kernel address space.
++ * The code is copied and adapted from map_chunk().
++ */
++
++unsigned long kernel_map(unsigned long paddr, unsigned long size,
++ int nocacheflag, unsigned long *memavailp )
++{
++ return paddr;
++}
++
+--- /dev/null
++++ b/arch/ubicom32/mm/ocm-alloc.c
+@@ -0,0 +1,439 @@
++/*
++ * arch/ubicom32/mm/ocm-alloc.c
++ * OCM allocator for Uibcom32 On-Chip memory
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright 2004-2008 Analog Devices Inc.
++ *
++ * Based on:
++ *
++ * arch/blackfin/mm/sram-alloc.c
++ *
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/types.h>
++#include <linux/miscdevice.h>
++#include <linux/ioport.h>
++#include <linux/fcntl.h>
++#include <linux/init.h>
++#include <linux/poll.h>
++#include <linux/proc_fs.h>
++#include <linux/mutex.h>
++#include <linux/rtc.h>
++#include <asm/ocm-alloc.h>
++
++#if 0
++#define DEBUGP printk
++#else
++#define DEBUGP(fmt, a...)
++#endif
++/*
++ * the data structure for OCM heap pieces
++ */
++struct ocm_piece {
++ void *paddr;
++ int size;
++ pid_t pid;
++ struct ocm_piece *next;
++};
++
++/*
++ * struct ocm_heap
++ */
++struct ocm_heap {
++ struct ocm_piece free_head;
++ struct ocm_piece used_head;
++ struct mutex lock;
++};
++
++static struct ocm_heap ocm_inst_heap;
++
++/*
++ * OCM area for storing code
++ */
++extern asmlinkage void *__ocm_inst_heap_begin;
++extern asmlinkage void *__ocm_inst_heap_end;
++#define OCM_INST_HEAP_BEGIN ((unsigned int)&__ocm_inst_heap_begin)
++#define OCM_INST_HEAP_END ((unsigned int)&__ocm_inst_heap_end)
++#define OCM_INST_HEAP_LENGTH (OCM_INST_HEAP_END - OCM_INST_HEAP_BEGIN)
++
++static struct kmem_cache *ocm_piece_cache;
++
++/*
++ * _ocm_heap_init()
++ */
++static int __init _ocm_heap_init(struct ocm_heap *ocmh,
++ unsigned int start,
++ unsigned int size)
++{
++ ocmh->free_head.next = kmem_cache_alloc(ocm_piece_cache, GFP_KERNEL);
++
++ if (!ocmh->free_head.next)
++ return -1;
++
++ ocmh->free_head.next->paddr = (void *)start;
++ ocmh->free_head.next->size = size;
++ ocmh->free_head.next->pid = 0;
++ ocmh->free_head.next->next = 0;
++
++ ocmh->used_head.next = NULL;
++
++ /* mutex initialize */
++ mutex_init(&ocmh->lock);
++
++ return 0;
++}
++
++/*
++ * _ocm_alloc_init()
++ *
++ * starts the ocm heap(s)
++ */
++static int __init _ocm_alloc_init(void)
++{
++ if (OCM_INST_HEAP_LENGTH) {
++ ocm_piece_cache = kmem_cache_create("ocm_piece_cache",
++ sizeof(struct ocm_piece),
++ 0, SLAB_PANIC, NULL);
++
++ if (_ocm_heap_init(&ocm_inst_heap,
++ OCM_INST_HEAP_BEGIN,
++ OCM_INST_HEAP_LENGTH) == 0)
++ printk(KERN_INFO "OCM Instruction Heap %d KB\n",
++ OCM_INST_HEAP_LENGTH >> 10);
++ else
++ printk(KERN_INFO "Failed to initialize OCM "
++ "Instruction Heap\n");
++
++ } else
++ printk(KERN_INFO "No space available for OCM "
++ "Instruction Heap\n");
++
++ return 0;
++}
++pure_initcall(_ocm_alloc_init);
++
++/*
++ * _ocm_alloc()
++ * generic alloc a block in the ocm heap, if successful
++ * returns the pointer.
++ */
++static void *_ocm_alloc(size_t size, pid_t pid, struct ocm_heap *ocmheap)
++{
++ struct ocm_piece *pslot, *plast, *pavail;
++ struct ocm_piece *pfree_head = &ocmheap->free_head;
++ struct ocm_piece *pused_head = &ocmheap->used_head;
++
++ if (size <= 0 || !pfree_head || !pused_head)
++ return NULL;
++
++ /* Align the size */
++ size = (size + 3) & ~3;
++
++ pslot = pfree_head->next;
++ plast = pfree_head;
++
++ /*
++ * search an available piece slot
++ */
++ while (pslot != NULL && size > pslot->size) {
++ plast = pslot;
++ pslot = pslot->next;
++ }
++
++ if (!pslot)
++ return NULL;
++
++ if (pslot->size == size) {
++ /*
++ * Unlink this block from the list
++ */
++ plast->next = pslot->next;
++ pavail = pslot;
++ } else {
++ /*
++ * Split this block in two.
++ */
++ pavail = kmem_cache_alloc(ocm_piece_cache, GFP_KERNEL);
++
++ if (!pavail)
++ return NULL;
++
++ pavail->paddr = pslot->paddr;
++ pavail->size = size;
++ pslot->paddr += size;
++ pslot->size -= size;
++ }
++
++ pavail->pid = pid;
++
++ pslot = pused_head->next;
++ plast = pused_head;
++
++ /*
++ * insert new piece into used piece list !!!
++ */
++ while (pslot != NULL && pavail->paddr < pslot->paddr) {
++ plast = pslot;
++ pslot = pslot->next;
++ }
++
++ pavail->next = pslot;
++ plast->next = pavail;
++
++ DEBUGP("_ocm_alloc %d bytes at %p from in %p",
++ size, pavail->paddr, ocmheap);
++
++ return pavail->paddr;
++}
++
++#if 0
++/* Allocate the largest available block. */
++static void *_ocm_alloc_max(struct ocm_heap *ocmheap,
++ unsigned long *psize)
++{
++ struct ocm_piece *pfree_head = &ocmheap->free_head;
++ struct ocm_piece *pslot, *pmax;
++
++ pmax = pslot = pfree_head->next;
++
++ /* search an available piece slot */
++ while (pslot != NULL) {
++ if (pslot->size > pmax->size)
++ pmax = pslot;
++ pslot = pslot->next;
++ }
++
++ if (!pmax)
++ return NULL;
++
++ *psize = pmax->size;
++
++ return _ocm_alloc(*psize, ocmheap);
++}
++#endif
++
++/*
++ * _ocm_free()
++ * generic free a block in the ocm heap, if successful
++ */
++static int _ocm_free(const void *addr,
++ struct ocm_heap *ocmheap)
++{
++ struct ocm_piece *pslot, *plast, *pavail;
++ struct ocm_piece *pfree_head = &ocmheap->free_head;
++ struct ocm_piece *pused_head = &ocmheap->used_head;
++
++ /* search the relevant memory slot */
++ pslot = pused_head->next;
++ plast = pused_head;
++
++ /* search an available piece slot */
++ while (pslot != NULL && pslot->paddr != addr) {
++ plast = pslot;
++ pslot = pslot->next;
++ }
++
++ if (!pslot) {
++ DEBUGP("_ocm_free %p not found in %p", addr, ocmheap);
++ return -1;
++ }
++ DEBUGP("_ocm_free %p from in %p", addr, ocmheap);
++
++ plast->next = pslot->next;
++ pavail = pslot;
++ pavail->pid = 0;
++
++ /* insert free pieces back to the free list */
++ pslot = pfree_head->next;
++ plast = pfree_head;
++
++ while (pslot != NULL && addr > pslot->paddr) {
++ plast = pslot;
++ pslot = pslot->next;
++ }
++
++ if (plast != pfree_head &&
++ plast->paddr + plast->size == pavail->paddr) {
++ plast->size += pavail->size;
++ kmem_cache_free(ocm_piece_cache, pavail);
++ } else {
++ pavail->next = plast->next;
++ plast->next = pavail;
++ plast = pavail;
++ }
++
++ if (pslot && plast->paddr + plast->size == pslot->paddr) {
++ plast->size += pslot->size;
++ plast->next = pslot->next;
++ kmem_cache_free(ocm_piece_cache, pslot);
++ }
++
++ return 0;
++}
++
++/*
++ * ocm_inst_alloc()
++ *
++ * allocates a block of size in the ocm instrction heap, if
++ * successful returns address allocated.
++ */
++void *ocm_inst_alloc(size_t size, pid_t pid)
++{
++ void *addr;
++
++ if (!OCM_INST_HEAP_LENGTH)
++ return NULL;
++
++
++ mutex_lock(&ocm_inst_heap.lock);
++
++ addr = _ocm_alloc(size, pid, &ocm_inst_heap);
++
++ mutex_unlock(&ocm_inst_heap.lock);
++
++ return addr;
++}
++EXPORT_SYMBOL(ocm_inst_alloc);
++
++/*
++ * ocm_inst_free()
++ * free a block in the ocm instrction heap, returns 0 if successful.
++ */
++int ocm_inst_free(const void *addr)
++{
++ int ret;
++
++ if (!OCM_INST_HEAP_LENGTH)
++ return -1;
++
++ mutex_lock(&ocm_inst_heap.lock);
++
++ ret = _ocm_free(addr, &ocm_inst_heap);
++
++ mutex_unlock(&ocm_inst_heap.lock);
++
++ return ret;
++}
++EXPORT_SYMBOL(ocm_inst_free);
++
++/*
++ * ocm_free()
++ * free a block in one of the ocm heaps, returns 0 if successful.
++ */
++int ocm_free(const void *addr)
++{
++ if (addr >= (void *)OCM_INST_HEAP_BEGIN
++ && addr < (void *)(OCM_INST_HEAP_END))
++ return ocm_inst_free(addr);
++ else
++ return -1;
++}
++EXPORT_SYMBOL(ocm_free);
++
++
++#ifdef CONFIG_PROC_FS
++/* Need to keep line of output the same. Currently, that is 46 bytes
++ * (including newline).
++ */
++static int _ocm_proc_read(char *buf, int *len, int count, const char *desc,
++ struct ocm_heap *ocmheap)
++{
++ struct ocm_piece *pslot;
++ struct ocm_piece *pfree_head = &ocmheap->free_head;
++ struct ocm_piece *pused_head = &ocmheap->used_head;
++
++ /* The format is the following
++ * --- OCM 123456789012345 Size PID State \n
++ * 12345678-12345678 1234567890 12345 1234567890\n
++ */
++ int l;
++ l = sprintf(&buf[*len], "--- OCM %-15s Size PID State \n",
++ desc);
++
++ *len += l;
++ count -= l;
++
++ mutex_lock(&ocm_inst_heap.lock);
++
++ /*
++ * search the relevant memory slot
++ */
++ pslot = pused_head->next;
++
++ while (pslot != NULL && count > 46) {
++ l = sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n",
++ pslot->paddr, pslot->paddr + pslot->size,
++ pslot->size, pslot->pid, "ALLOCATED");
++
++ *len += l;
++ count -= l;
++ pslot = pslot->next;
++ }
++
++ pslot = pfree_head->next;
++
++ while (pslot != NULL && count > 46) {
++ l = sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n",
++ pslot->paddr, pslot->paddr + pslot->size,
++ pslot->size, pslot->pid, "FREE");
++
++ *len += l;
++ count -= l;
++ pslot = pslot->next;
++ }
++
++ mutex_unlock(&ocm_inst_heap.lock);
++
++ return 0;
++}
++static int ocm_proc_read(char *buf, char **start, off_t offset, int count,
++ int *eof, void *data)
++{
++ int len = 0;
++
++ if (_ocm_proc_read(buf, &len, count - len, "Inst Heap",
++ &ocm_inst_heap))
++ goto not_done;
++ *eof = 1;
++ not_done:
++ return len;
++}
++
++static int __init sram_proc_init(void)
++{
++ struct proc_dir_entry *ptr;
++ ptr = create_proc_entry("ocm", S_IFREG | S_IRUGO, NULL);
++ if (!ptr) {
++ printk(KERN_WARNING "unable to create /proc/ocm\n");
++ return -1;
++ }
++ ptr->owner = THIS_MODULE;
++ ptr->read_proc = ocm_proc_read;
++ return 0;
++}
++late_initcall(sram_proc_init);
++#endif
+--- /dev/null
++++ b/arch/ubicom32/oprofile/ipProf.h
+@@ -0,0 +1,39 @@
++#ifndef __IP_PROF_H__
++#define __IP_PROF_H__
++
++/* This number MUST match what is used in the ultra configuration! */
++#define IPPROFILETIO_MAX_SAMPLES 600
++
++/* Move to .h file used in both; avoid special types */
++struct profile_sample {
++ unsigned int pc; /* PC value */
++ unsigned int parent; /* a5 contents, to find the caller */
++ unsigned char cond_codes; /* for branch prediction */
++ unsigned char thread; /* I-blocked, D-blocked,
++ 4-bit thread number */
++ unsigned short active; /* which threads are active -
++ for accurate counting */
++ unsigned short blocked; /* which threads are blocked due to
++ I or D cache misses */
++ unsigned int latency; /* CPU clocks since the last message
++ dispatch in this thread
++ (thread 0 only for now) */
++};
++
++
++struct profilenode {
++ struct devtree_node dn;
++ volatile unsigned char enabled; /* Is the tio enabled to
++ take samples? */
++ volatile unsigned char busy; /* set when the samples
++ are being read */
++ volatile unsigned int mask; /* Threads that change the MT_EN flag */
++ volatile unsigned short rate; /* What is the sampling rate? */
++ volatile unsigned short head; /* sample taker puts samples here */
++ volatile unsigned short tail; /* packet filler takes samples here */
++ volatile unsigned short count; /* number of valid samples */
++ volatile unsigned short total; /* Total samples */
++ struct profile_sample samples[IPPROFILETIO_MAX_SAMPLES];
++};
++
++#endif
+--- /dev/null
++++ b/arch/ubicom32/oprofile/Makefile
+@@ -0,0 +1,37 @@
++#
++# arch/ubicom32/Makefile
++# Makefile for Oprofile support on Ubicom32
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++
++obj-$(CONFIG_OPROFILE) += oprofile.o
++
++DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
++ oprof.o cpu_buffer.o buffer_sync.o \
++ event_buffer.o oprofile_files.o \
++ oprofilefs.o oprofile_stats.o \
++ timer_int.o )
++
++oprofile-y := $(DRIVER_OBJS) profile.o
+--- /dev/null
++++ b/arch/ubicom32/oprofile/profile.c
+@@ -0,0 +1,221 @@
++/*
++ * arch/ubicom32/oprofile/profile.c
++ * Oprofile support for arch Ubicom32
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option)
++ * any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it will
++ * be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
++ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not, see
++ * <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++/**
++ * @file profile.c
++ *
++ * @remark Copyright 2002 OProfile authors
++ * @remark Read the file COPYING
++ *
++ * @author Hunyue Yau <hy@hy-research.com>
++ */
++
++#include <linux/oprofile.h>
++#include <linux/init.h>
++#include <linux/errno.h>
++#include <linux/interrupt.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++
++#include <asm/devtree.h>
++#include <asm/thread.h>
++
++/* For identifying userland vs kernel address */
++#include <asm/stacktrace.h>
++#include "ipProf.h"
++
++/* For communications with the backend */
++static struct profilenode *profile_node;
++
++/* Bitmask containing all Linux threads - as seen by the ROSR reg */
++static unsigned long th_all_mask;
++
++/* Lookup table to translate a hardware thread into a CPU identifier
++ * Table is indexed by the ROSR value which is assumed to be
++ * relatively small (0...15).
++ */
++unsigned int cpu_map[THREAD_ARCHITECTURAL_MAX];
++
++static struct pt_regs regs;
++
++/*
++ * For each sample returned, checked to see if they are relevant to
++ * us. This is necessary as the ubicom32 architecture has other software
++ * running outside of Linux. Only then, put the sample into the relevant
++ * cpu bins.
++ *
++ * To minimize overhead, a global mask with all possible threads of in
++ * interest to us is used as a first check. Then a second mask identifying
++ * the thread is used to obtain an identifier for that "CPU".
++ */
++
++/*
++ * ubicom32_build_cpu_th_mask()
++ *
++ * Build a lookup table for translation between hardware thread
++ * "ROSR" values and Linux CPU ids
++ *
++ * *** This gets executed on all CPUs at once! ***
++ */
++static void ubicom32_build_cpu_th_mask(void *mask)
++{
++ thread_t self = thread_get_self();
++ unsigned long *th_m = mask;
++
++ BUG_ON(self <= 0 || self >= THREAD_ARCHITECTURAL_MAX);
++ cpu_map[self] = smp_processor_id();
++
++ set_bit(self, th_m);
++}
++
++/*
++ * profile_interrupt()
++ *
++ * Process samples returned from the profiler backend. The backend
++ * may return samples that are irrelevant to us or may even return
++ * multiple samples for the same CPU. Note that the sames may be
++ * for ANY cpu. At this time, this is unique and to support this requires
++ * Oprofile to expose an interface to accept the CPU that the same came
++ * frome.
++ */
++static irqreturn_t profile_interrupt(int irq, void *arg)
++{
++ int i, buf_entry;
++ int is_kernel;
++ unsigned int bit_th;
++ unsigned int th;
++
++ if (!(profile_node->enabled) || profile_node->count < 0) {
++ printk(KERN_WARNING
++ "Unexpected interrupt, no samples or not enabled!\n");
++ return IRQ_HANDLED;
++ }
++
++ profile_node->busy = 1; /* Keep backend out */
++
++ for (i = 0; i < profile_node->count; i++) {
++ buf_entry = profile_node->tail;
++ profile_node->tail++;
++ profile_node->tail %= IPPROFILETIO_MAX_SAMPLES;
++
++ /* Note - the "thread" ID is only the lower 4 bits */
++ th = (0x0f & profile_node->samples[buf_entry].thread);
++ bit_th = (1 << th);
++
++ if ((bit_th & th_all_mask) == 0)
++ continue;
++
++ regs.pc = profile_node->samples[buf_entry].pc;
++
++ is_kernel = ubicom32_is_kernel(regs.pc);
++
++ oprofile_add_ext_sample_cpu(regs.pc, ®s, 0, is_kernel,
++ cpu_map[th]);
++ }
++ profile_node->count = 0;
++ profile_node->busy = 0;
++
++ return IRQ_HANDLED;
++}
++
++/*
++ * profile_start()
++ *
++ * Notification from oprofile to start the profiler
++ */
++static int profile_start(void)
++{
++ if (!profile_node)
++ return -1;
++
++ profile_node->enabled = 1;
++
++ return 0;
++}
++
++/*
++ * profile_stop()
++ *
++ * Notification from oprofile to stop the profiler
++ */
++static void profile_stop(void)
++{
++ if (profile_node)
++ profile_node->enabled = 0;
++}
++
++/*
++ * oprofile_arch_init()
++ *
++ * Attach to Oprofile after qualify the availability of the backend
++ * profiler support.
++ */
++int __init oprofile_arch_init(struct oprofile_operations *ops)
++{
++ int r = -ENODEV;
++
++ profile_node = (struct profilenode *)devtree_find_node("profiler");
++
++ if (profile_node == NULL) {
++ printk(KERN_WARNING "Cannot find profiler node\n");
++ return r;
++ }
++
++ r = request_irq(profile_node->dn.recvirq, profile_interrupt,
++ IRQF_DISABLED, "profiler", NULL);
++
++ if (r < 0) {
++ profile_node = NULL;
++ printk(KERN_WARNING "Cannot get profiler IRQ\n");
++ return r;
++ }
++
++ ops->start = profile_start;
++ ops->stop = profile_stop;
++ ops->cpu_type = "timer";
++
++ memset(cpu_map, 0, sizeof(cpu_map));
++
++ on_each_cpu(ubicom32_build_cpu_th_mask, &th_all_mask, 1);
++
++ memset(®s, 0, sizeof(regs));
++
++ return r;
++}
++
++/*
++ * oprofile_arch_exit()
++ *
++ * External call to take outselves out.
++ * Make sure backend is not running.
++ */
++void oprofile_arch_exit(void)
++{
++ BUG_ON(profile_node->enabled);
++}
+--- a/drivers/char/hw_random/Kconfig
++++ b/drivers/char/hw_random/Kconfig
+@@ -134,3 +134,16 @@ config HW_RANDOM_VIRTIO
+
+ To compile this driver as a module, choose M here: the
+ module will be called virtio-rng. If unsure, say N.
++
++config HW_RANDOM_UBICOM32
++ tristate "Ubicom32 HW Random Number Generator support"
++ depends on HW_RANDOM && UBICOM32
++ default HW_RANDOM
++ ---help---
++ This driver provides kernel-side support for the Random Number
++ Generator hardware found on Ubicom32 processors.
++
++ To compile this driver as a module, choose M here: the
++ module will be called pasemi-rng.
++
++ If unsure, say Y.
+--- a/drivers/char/hw_random/Makefile
++++ b/drivers/char/hw_random/Makefile
+@@ -14,3 +14,4 @@ obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx
+ obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o
+ obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o
+ obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o
++obj-$(CONFIG_HW_RANDOM_UBICOM32) += ubicom32-rng.o
+--- /dev/null
++++ b/drivers/char/hw_random/ubicom32-rng.c
+@@ -0,0 +1,105 @@
++/*
++ * drivers/net/ubi32-eth.c
++ * Ubicom32 hardware random number generator driver.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/hw_random.h>
++#include <linux/delay.h>
++#include <asm/io.h>
++#include <asm/ip5000.h>
++
++#define MODULE_NAME "ubicom32_rng"
++
++static int ubicom32_rng_data_present(struct hwrng *rng, int wait)
++{
++ int data, i;
++
++ for (i = 0; i < 20; i++) {
++ data = *(int *)(TIMER_BASE + TIMER_TRN);
++ if (data || !wait)
++ break;
++ udelay(10);
++ }
++ return data;
++}
++
++static int ubicom32_rng_data_read(struct hwrng *rng, u32 *data)
++{
++ *data = *(int *)(TIMER_BASE + TIMER_TRN);
++ return 4;
++}
++
++static int ubicom32_rng_init(struct hwrng *rng)
++{
++ printk(KERN_INFO "ubicom32 rng init\n");
++ *(int *)(TIMER_BASE + TIMER_TRN_CFG) = TIMER_TRN_CFG_ENABLE_OSC;
++ return 0;
++}
++
++static void ubicom32_rng_cleanup(struct hwrng *rng)
++{
++ printk(KERN_INFO "ubicom32 rng cleanup\n");
++ *(int *)(TIMER_BASE + TIMER_TRN_CFG) = 0;
++}
++
++static struct hwrng ubicom32_rng = {
++ .name = MODULE_NAME,
++ .init = ubicom32_rng_init,
++ .cleanup = ubicom32_rng_cleanup,
++ .data_present = ubicom32_rng_data_present,
++ .data_read = ubicom32_rng_data_read,
++ .priv = 0,
++};
++
++static int __init mod_init(void)
++{
++ int err;
++
++ printk(KERN_INFO "ubicom32 rng started\n");
++ err = hwrng_register(&ubicom32_rng);
++ if (err) {
++ printk(KERN_ERR "ubicom32 rng register failed (%d)\n",
++ err);
++ }
++
++ return err;
++}
++
++static void __exit mod_exit(void)
++{
++ printk(KERN_INFO "ubicom32 rng stopped\n");
++ hwrng_unregister(&ubicom32_rng);
++}
++
++module_init(mod_init);
++module_exit(mod_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Ubicom, Inc.");
++MODULE_DESCRIPTION("H/W rng driver for ubicom32 processor");
++MODULE_VERSION("1:1.0.a");
+--- a/drivers/crypto/Kconfig
++++ b/drivers/crypto/Kconfig
+@@ -61,6 +61,40 @@ config CRYPTO_DEV_GEODE
+ To compile this driver as a module, choose M here: the module
+ will be called geode-aes.
+
++config CRYPTO_UBICOM32
++ bool "Ubicom32 Security Module"
++ depends on UBICOM32
++ help
++ This is the ubicom32 hardware acceleration common code.
++
++config CRYPTO_AES_UBICOM32
++ tristate "Ubicom32 AES implementation"
++ depends on CRYPTO_UBICOM32
++ select CRYPTO_ALGAPI
++ help
++ This is the ubicom32 hardware AES implementation.
++
++config CRYPTO_DES_UBICOM32
++ tristate "Ubicom32 DES implementation"
++ depends on CRYPTO_UBICOM32
++ select CRYPTO_ALGAPI
++ help
++ This is the ubicom32 hardware DES and 3DES implementation.
++
++config CRYPTO_SHA1_UBICOM32
++ tristate "Ubicom32 SHA1 implementation"
++ depends on CRYPTO_UBICOM32
++ select CRYPTO_ALGAPI
++ help
++ This is the ubicom32 hardware SHA1 implementation.
++
++config CRYPTO_MD5_UBICOM32
++ tristate "Ubicom32 MD5 implementation"
++ depends on CRYPTO_UBICOM32
++ select CRYPTO_ALGAPI
++ help
++ This is the ubicom32 hardware MD5 implementation.
++
+ config ZCRYPT
+ tristate "Support for PCI-attached cryptographic adapters"
+ depends on S390
+--- a/drivers/mmc/host/Kconfig
++++ b/drivers/mmc/host/Kconfig
+@@ -193,6 +193,13 @@ config MMC_TMIO
+ This provides support for the SD/MMC cell found in TC6393XB,
+ T7L66XB and also ipaq ASIC3
+
++config MMC_UBICOM32
++ tristate "Ubicom32 MMC/SD host controller"
++ depends on UBICOM32
++ help
++ This provides support for the SD/MMC hardware found on Ubicom32
++ IP7K processors
++
+ config GPIOMMC
+ tristate "MMC/SD over GPIO-based SPI"
+ depends on MMC && MMC_SPI && (SPI_GPIO || SPI_GPIO_OLD)
+--- a/drivers/mmc/host/Makefile
++++ b/drivers/mmc/host/Makefile
+@@ -22,5 +22,6 @@ obj-$(CONFIG_MMC_SPI) += mmc_spi.o
+ obj-$(CONFIG_MMC_S3C) += s3cmci.o
+ obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o
+ obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o
++obj-$(CONFIG_MMC_UBICOM32) += ubicom32sd.o
+ obj-$(CONFIG_GPIOMMC) += gpiommc.o
+
+--- /dev/null
++++ b/drivers/mmc/host/ubicom32sd.c
+@@ -0,0 +1,774 @@
++/*
++ * drivers/mmc/host/ubicom32sd.c
++ * Ubicom32 Secure Digital Host Controller Interface driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++#include <linux/scatterlist.h>
++#include <linux/leds.h>
++#include <linux/gpio.h>
++#include <linux/mmc/host.h>
++
++#include <asm/ubicom32sd.h>
++
++#define DRIVER_NAME "ubicom32sd"
++
++#define sd_printk(...)
++//#define sd_printk printk
++
++#define SDTIO_VP_VERSION 3
++
++#define SDTIO_MAX_SG_BLOCKS 16
++
++enum sdtio_commands {
++ SDTIO_COMMAND_NOP,
++ SDTIO_COMMAND_SETUP,
++ SDTIO_COMMAND_SETUP_SDIO,
++ SDTIO_COMMAND_EXECUTE,
++ SDTIO_COMMAND_RESET,
++};
++
++#define SDTIO_COMMAND_SHIFT 24
++#define SDTIO_COMMAND_FLAG_STOP_RSP_CRC (1 << 10)
++#define SDTIO_COMMAND_FLAG_STOP_RSP_136 (1 << 9)
++#define SDTIO_COMMAND_FLAG_STOP_RSP (1 << 8)
++#define SDTIO_COMMAND_FLAG_STOP_CMD (1 << 7)
++#define SDTIO_COMMAND_FLAG_DATA_STREAM (1 << 6)
++#define SDTIO_COMMAND_FLAG_DATA_RD (1 << 5)
++#define SDTIO_COMMAND_FLAG_DATA_WR (1 << 4)
++#define SDTIO_COMMAND_FLAG_CMD_RSP_CRC (1 << 3)
++#define SDTIO_COMMAND_FLAG_CMD_RSP_136 (1 << 2)
++#define SDTIO_COMMAND_FLAG_CMD_RSP (1 << 1)
++#define SDTIO_COMMAND_FLAG_CMD (1 << 0)
++
++/*
++ * SDTIO_COMMAND_SETUP_SDIO
++ */
++#define SDTIO_COMMAND_FLAG_SDIO_INT_EN (1 << 0)
++
++/*
++ * SDTIO_COMMAND_SETUP
++ * clock speed in arg
++ */
++#define SDTIO_COMMAND_FLAG_4BIT (1 << 3)
++#define SDTIO_COMMAND_FLAG_1BIT (1 << 2)
++#define SDTIO_COMMAND_FLAG_SET_CLOCK (1 << 1)
++#define SDTIO_COMMAND_FLAG_SET_WIDTH (1 << 0)
++
++#define SDTIO_COMMAND_FLAG_CMD_RSP_MASK (SDTIO_COMMAND_FLAG_CMD_RSP | SDTIO_COMMAND_FLAG_CMD_RSP_136)
++#define SDTIO_COMMAND_FLAG_STOP_RSP_MASK (SDTIO_COMMAND_FLAG_STOP_RSP | SDTIO_COMMAND_FLAG_STOP_RSP_136)
++#define SDTIO_COMMAND_FLAG_RSP_MASK (SDTIO_COMMAND_FLAG_CMD_RSP_MASK | SDTIO_COMMAND_FLAG_STOP_RSP_MASK)
++
++struct sdtio_vp_sg {
++ volatile void *addr;
++ volatile u32_t len;
++};
++
++#define SDTIO_VP_INT_STATUS_DONE (1 << 31)
++#define SDTIO_VP_INT_STATUS_SDIO_INT (1 << 10)
++#define SDTIO_VP_INT_STATUS_DATA_CRC_ERR (1 << 9)
++#define SDTIO_VP_INT_STATUS_DATA_PROG_ERR (1 << 8)
++#define SDTIO_VP_INT_STATUS_DATA_TIMEOUT (1 << 7)
++#define SDTIO_VP_INT_STATUS_STOP_RSP_CRC (1 << 6)
++#define SDTIO_VP_INT_STATUS_STOP_RSP_TIMEOUT (1 << 5)
++#define SDTIO_VP_INT_STATUS_CMD_RSP_CRC (1 << 4)
++#define SDTIO_VP_INT_STATUS_CMD_RSP_TIMEOUT (1 << 3)
++#define SDTIO_VP_INT_STATUS_CMD_TIMEOUT (1 << 2)
++#define SDTIO_VP_INT_STATUS_CARD1_INSERT (1 << 1)
++#define SDTIO_VP_INT_STATUS_CARD0_INSERT (1 << 0)
++
++struct sdtio_vp_regs {
++ u32_t version;
++ u32_t f_max;
++ u32_t f_min;
++
++ volatile u32_t int_status;
++
++ volatile u32_t command;
++ volatile u32_t arg;
++
++ volatile u32_t cmd_opcode;
++ volatile u32_t cmd_arg;
++ volatile u32_t cmd_rsp0;
++ volatile u32_t cmd_rsp1;
++ volatile u32_t cmd_rsp2;
++ volatile u32_t cmd_rsp3;
++
++ volatile u32_t stop_opcode;
++ volatile u32_t stop_arg;
++ volatile u32_t stop_rsp0;
++ volatile u32_t stop_rsp1;
++ volatile u32_t stop_rsp2;
++ volatile u32_t stop_rsp3;
++
++ volatile u32_t data_timeout_ns;
++ volatile u16_t data_blksz;
++ volatile u16_t data_blkct;
++ volatile u32_t data_bytes_transferred;
++ volatile u32_t sg_len;
++ struct sdtio_vp_sg sg[SDTIO_MAX_SG_BLOCKS];
++};
++
++struct ubicom32sd_data {
++ const struct ubicom32sd_platform_data *pdata;
++
++ struct mmc_host *mmc;
++
++ /*
++ * Lock used to protect the data structure
++ spinlock_t lock;
++ */
++ int int_en;
++ int int_pend;
++
++ /*
++ * Receive and transmit interrupts used for communicating
++ * with hardware
++ */
++ int irq_tx;
++ int irq_rx;
++
++ /*
++ * Current outstanding mmc request
++ */
++ struct mmc_request *mrq;
++
++ /*
++ * Hardware registers
++ */
++ struct sdtio_vp_regs *regs;
++};
++
++/*****************************************************************************\
++ * *
++ * Suspend/resume *
++ * *
++\*****************************************************************************/
++
++#if 0//def CONFIG_PM
++
++int ubicom32sd_suspend_host(struct ubicom32sd_host *host, pm_message_t state)
++{
++ int ret;
++
++ ret = mmc_suspend_host(host->mmc, state);
++ if (ret)
++ return ret;
++
++ free_irq(host->irq, host);
++
++ return 0;
++}
++
++EXPORT_SYMBOL_GPL(ubicom32sd_suspend_host);
++
++int ubicom32sd_resume_host(struct ubicom32sd_host *host)
++{
++ int ret;
++
++ if (host->flags & UBICOM32SD_USE_DMA) {
++ if (host->ops->enable_dma)
++ host->ops->enable_dma(host);
++ }
++
++ ret = request_irq(host->irq, ubicom32sd_irq, IRQF_SHARED,
++ mmc_hostname(host->mmc), host);
++ if (ret)
++ return ret;
++
++ ubicom32sd_init(host);
++ mmiowb();
++
++ ret = mmc_resume_host(host->mmc);
++ if (ret)
++ return ret;
++
++ return 0;
++}
++
++EXPORT_SYMBOL_GPL(ubicom32sd_resume_host);
++
++#endif /* CONFIG_PM */
++
++/*
++ * ubicom32sd_send_command_sync
++ */
++static void ubicom32sd_send_command_sync(struct ubicom32sd_data *ud, u32_t command, u32_t arg)
++{
++ ud->regs->command = command;
++ ud->regs->arg = arg;
++ ubicom32_set_interrupt(ud->irq_tx);
++ while (ud->regs->command) {
++ ndelay(100);
++ }
++}
++
++/*
++ * ubicom32sd_send_command
++ */
++static void ubicom32sd_send_command(struct ubicom32sd_data *ud, u32_t command, u32_t arg)
++{
++ ud->regs->command = command;
++ ud->regs->arg = arg;
++ ubicom32_set_interrupt(ud->irq_tx);
++}
++
++/*
++ * ubicom32sd_reset
++ */
++static void ubicom32sd_reset(struct ubicom32sd_data *ud)
++{
++ ubicom32sd_send_command_sync(ud, SDTIO_COMMAND_RESET << SDTIO_COMMAND_SHIFT, 0);
++ ud->regs->int_status = 0;
++}
++
++/*
++ * ubicom32sd_mmc_request
++ */
++static void ubicom32sd_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
++{
++ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++ u32_t command = SDTIO_COMMAND_EXECUTE << SDTIO_COMMAND_SHIFT;
++ int ret = 0;
++
++ WARN(ud->mrq != NULL, "ud->mrq still set to %p\n", ud->mrq);
++ //pr_debug("send cmd %08x arg %08x flags %08x\n", cmd->opcode, cmd->arg, cmd->flags);
++
++ if (mrq->cmd) {
++ struct mmc_command *cmd = mrq->cmd;
++
++ sd_printk("%s:\t\t\tsetup cmd %02d arg %08x flags %08x\n", mmc_hostname(mmc), cmd->opcode, cmd->arg, cmd->flags);
++
++ ud->regs->cmd_opcode = cmd->opcode;
++ ud->regs->cmd_arg = cmd->arg;
++
++ command |= SDTIO_COMMAND_FLAG_CMD;
++
++ if (cmd->flags & MMC_RSP_PRESENT) {
++ command |= SDTIO_COMMAND_FLAG_CMD_RSP;
++ }
++
++ if (cmd->flags & MMC_RSP_136) {
++ command |= SDTIO_COMMAND_FLAG_CMD_RSP_136;
++ }
++
++ if (cmd->flags & MMC_RSP_CRC) {
++ command |= SDTIO_COMMAND_FLAG_CMD_RSP_CRC;
++ }
++ }
++
++ if (mrq->data) {
++ struct mmc_data *data = mrq->data;
++ struct scatterlist *sg = data->sg;
++ int i;
++
++printk("%s:\t\t\tsetup data blksz %d num %d sglen=%d fl=%08x Tns=%u\n", mmc_hostname(mmc), data->blksz, data->blocks, data->sg_len, data->flags, data->timeout_ns);
++
++ sd_printk("%s:\t\t\tsetup data blksz %d num %d sglen=%d fl=%08x Tns=%u\n",
++ mmc_hostname(mmc), data->blksz, data->blocks, data->sg_len,
++ data->flags, data->timeout_ns);
++
++ if (data->sg_len > SDTIO_MAX_SG_BLOCKS) {
++ ret = -EINVAL;
++ data->error = -EINVAL;
++ goto fail;
++ }
++
++ ud->regs->data_timeout_ns = data->timeout_ns;
++ ud->regs->data_blksz = data->blksz;
++ ud->regs->data_blkct = data->blocks;
++ ud->regs->sg_len = data->sg_len;
++
++ /*
++ * Load all of our sg list into the driver sg buffer
++ */
++ for (i = 0; i < data->sg_len; i++) {
++ sd_printk("%s: sg %d = %p %d\n", mmc_hostname(mmc), i, sg_virt(sg), sg->length);
++ ud->regs->sg[i].addr = sg_virt(sg);
++ ud->regs->sg[i].len = sg->length;
++ if (((u32_t)ud->regs->sg[i].addr & 0x03) || (sg->length & 0x03)) {
++ sd_printk("%s: Need aligned buffers\n", mmc_hostname(mmc));
++ ret = -EINVAL;
++ data->error = -EINVAL;
++ goto fail;
++ }
++ sg++;
++ }
++ if (data->flags & MMC_DATA_READ) {
++ command |= SDTIO_COMMAND_FLAG_DATA_RD;
++ } else if (data->flags & MMC_DATA_WRITE) {
++ command |= SDTIO_COMMAND_FLAG_DATA_WR;
++ } else if (data->flags & MMC_DATA_STREAM) {
++ command |= SDTIO_COMMAND_FLAG_DATA_STREAM;
++ }
++ }
++
++ if (mrq->stop) {
++ struct mmc_command *stop = mrq->stop;
++ sd_printk("%s: \t\t\tsetup stop %02d arg %08x flags %08x\n", mmc_hostname(mmc), stop->opcode, stop->arg, stop->flags);
++
++ ud->regs->stop_opcode = stop->opcode;
++ ud->regs->stop_arg = stop->arg;
++
++ command |= SDTIO_COMMAND_FLAG_STOP_CMD;
++
++ if (stop->flags & MMC_RSP_PRESENT) {
++ command |= SDTIO_COMMAND_FLAG_STOP_RSP;
++ }
++
++ if (stop->flags & MMC_RSP_136) {
++ command |= SDTIO_COMMAND_FLAG_STOP_RSP_136;
++ }
++
++ if (stop->flags & MMC_RSP_CRC) {
++ command |= SDTIO_COMMAND_FLAG_STOP_RSP_CRC;
++ }
++ }
++
++ ud->mrq = mrq;
++
++ sd_printk("%s: Sending command %08x\n", mmc_hostname(mmc), command);
++
++ ubicom32sd_send_command(ud, command, 0);
++
++ return;
++fail:
++ sd_printk("%s: mmcreq ret = %d\n", mmc_hostname(mmc), ret);
++ mrq->cmd->error = ret;
++ mmc_request_done(mmc, mrq);
++}
++
++/*
++ * ubicom32sd_mmc_set_ios
++ */
++static void ubicom32sd_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
++{
++ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++ u32_t command = SDTIO_COMMAND_SETUP << SDTIO_COMMAND_SHIFT;
++ u32_t arg = 0;
++ sd_printk("%s: ios call bw:%u pm:%u clk:%u\n", mmc_hostname(mmc), 1 << ios->bus_width, ios->power_mode, ios->clock);
++
++ switch (ios->bus_width) {
++ case MMC_BUS_WIDTH_1:
++ command |= SDTIO_COMMAND_FLAG_SET_WIDTH | SDTIO_COMMAND_FLAG_1BIT;
++ break;
++
++ case MMC_BUS_WIDTH_4:
++ command |= SDTIO_COMMAND_FLAG_SET_WIDTH | SDTIO_COMMAND_FLAG_4BIT;
++ break;
++ }
++
++ if (ios->clock) {
++ arg = ios->clock;
++ command |= SDTIO_COMMAND_FLAG_SET_CLOCK;
++ }
++
++ switch (ios->power_mode) {
++
++ /*
++ * Turn off the SD bus (power + clock)
++ */
++ case MMC_POWER_OFF:
++ gpio_set_value(ud->pdata->cards[0].pin_pwr, !ud->pdata->cards[0].pwr_polarity);
++ command |= SDTIO_COMMAND_FLAG_SET_CLOCK;
++ break;
++
++ /*
++ * Turn on the power to the SD bus
++ */
++ case MMC_POWER_ON:
++ gpio_set_value(ud->pdata->cards[0].pin_pwr, ud->pdata->cards[0].pwr_polarity);
++ break;
++
++ /*
++ * Turn on the clock to the SD bus
++ */
++ case MMC_POWER_UP:
++ /*
++ * Done above
++ */
++ break;
++ }
++
++ ubicom32sd_send_command_sync(ud, command, arg);
++
++ /*
++ * Let the power settle down
++ */
++ udelay(500);
++}
++
++/*
++ * ubicom32sd_mmc_get_cd
++ */
++static int ubicom32sd_mmc_get_cd(struct mmc_host *mmc)
++{
++ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++ sd_printk("%s: get cd %u %u\n", mmc_hostname(mmc), ud->pdata->cards[0].pin_cd, gpio_get_value(ud->pdata->cards[0].pin_cd));
++
++ return gpio_get_value(ud->pdata->cards[0].pin_cd) ?
++ ud->pdata->cards[0].cd_polarity :
++ !ud->pdata->cards[0].cd_polarity;
++}
++
++/*
++ * ubicom32sd_mmc_get_ro
++ */
++static int ubicom32sd_mmc_get_ro(struct mmc_host *mmc)
++{
++ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++ sd_printk("%s: get ro %u %u\n", mmc_hostname(mmc), ud->pdata->cards[0].pin_wp, gpio_get_value(ud->pdata->cards[0].pin_wp));
++
++ return gpio_get_value(ud->pdata->cards[0].pin_wp) ?
++ ud->pdata->cards[0].wp_polarity :
++ !ud->pdata->cards[0].wp_polarity;
++}
++
++/*
++ * ubicom32sd_mmc_enable_sdio_irq
++ */
++static void ubicom32sd_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
++{
++ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++
++ ud->int_en = enable;
++ if (enable && ud->int_pend) {
++ ud->int_pend = 0;
++ mmc_signal_sdio_irq(mmc);
++ }
++}
++
++/*
++ * ubicom32sd_interrupt
++ */
++static irqreturn_t ubicom32sd_interrupt(int irq, void *dev)
++{
++ struct mmc_host *mmc = (struct mmc_host *)dev;
++ struct mmc_request *mrq;
++ struct ubicom32sd_data *ud;
++ u32_t int_status;
++
++ if (!mmc) {
++ return IRQ_HANDLED;
++ }
++
++ ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++ if (!ud) {
++ return IRQ_HANDLED;
++ }
++
++ int_status = ud->regs->int_status;
++ ud->regs->int_status &= ~int_status;
++
++ if (int_status & SDTIO_VP_INT_STATUS_SDIO_INT) {
++ if (ud->int_en) {
++ ud->int_pend = 0;
++ mmc_signal_sdio_irq(mmc);
++ } else {
++ ud->int_pend++;
++ }
++ }
++
++ if (!(int_status & SDTIO_VP_INT_STATUS_DONE)) {
++ return IRQ_HANDLED;
++ }
++
++ mrq = ud->mrq;
++ if (!mrq) {
++ sd_printk("%s: Spurious interrupt", mmc_hostname(mmc));
++ return IRQ_HANDLED;
++ }
++ ud->mrq = NULL;
++
++ /*
++ * SDTIO_VP_INT_DONE
++ */
++ if (mrq->cmd->flags & MMC_RSP_PRESENT) {
++ struct mmc_command *cmd = mrq->cmd;
++ cmd->error = 0;
++
++ if ((cmd->flags & MMC_RSP_CRC) && (int_status & SDTIO_VP_INT_STATUS_CMD_RSP_CRC)) {
++ cmd->error = -EILSEQ;
++ } else if (int_status & SDTIO_VP_INT_STATUS_CMD_RSP_TIMEOUT) {
++ cmd->error = -ETIMEDOUT;
++ goto done;
++ } else if (cmd->flags & MMC_RSP_136) {
++ cmd->resp[0] = ud->regs->cmd_rsp0;
++ cmd->resp[1] = ud->regs->cmd_rsp1;
++ cmd->resp[2] = ud->regs->cmd_rsp2;
++ cmd->resp[3] = ud->regs->cmd_rsp3;
++ } else {
++ cmd->resp[0] = ud->regs->cmd_rsp0;
++ }
++ sd_printk("%s:\t\t\tResponse %08x %08x %08x %08x err=%d\n", mmc_hostname(mmc), cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3], cmd->error);
++ }
++
++ if (mrq->data) {
++ struct mmc_data *data = mrq->data;
++
++ if (int_status & SDTIO_VP_INT_STATUS_DATA_TIMEOUT) {
++ data->error = -ETIMEDOUT;
++ sd_printk("%s:\t\t\tData Timeout\n", mmc_hostname(mmc));
++ goto done;
++ } else if (int_status & SDTIO_VP_INT_STATUS_DATA_CRC_ERR) {
++ data->error = -EILSEQ;
++ sd_printk("%s:\t\t\tData CRC\n", mmc_hostname(mmc));
++ goto done;
++ } else if (int_status & SDTIO_VP_INT_STATUS_DATA_PROG_ERR) {
++ data->error = -EILSEQ;
++ sd_printk("%s:\t\t\tData Program Error\n", mmc_hostname(mmc));
++ goto done;
++ } else {
++ data->error = 0;
++ data->bytes_xfered = ud->regs->data_bytes_transferred;
++ }
++ }
++
++ if (mrq->stop && (mrq->stop->flags & MMC_RSP_PRESENT)) {
++ struct mmc_command *stop = mrq->stop;
++ stop->error = 0;
++
++ if ((stop->flags & MMC_RSP_CRC) && (int_status & SDTIO_VP_INT_STATUS_STOP_RSP_CRC)) {
++ stop->error = -EILSEQ;
++ } else if (int_status & SDTIO_VP_INT_STATUS_STOP_RSP_TIMEOUT) {
++ stop->error = -ETIMEDOUT;
++ goto done;
++ } else if (stop->flags & MMC_RSP_136) {
++ stop->resp[0] = ud->regs->stop_rsp0;
++ stop->resp[1] = ud->regs->stop_rsp1;
++ stop->resp[2] = ud->regs->stop_rsp2;
++ stop->resp[3] = ud->regs->stop_rsp3;
++ } else {
++ stop->resp[0] = ud->regs->stop_rsp0;
++ }
++ sd_printk("%s:\t\t\tStop Response %08x %08x %08x %08x err=%d\n", mmc_hostname(mmc), stop->resp[0], stop->resp[1], stop->resp[2], stop->resp[3], stop->error);
++ }
++
++done:
++ mmc_request_done(mmc, mrq);
++
++ return IRQ_HANDLED;
++}
++
++static struct mmc_host_ops ubicom32sd_ops = {
++ .request = ubicom32sd_mmc_request,
++ .set_ios = ubicom32sd_mmc_set_ios,
++ .get_ro = ubicom32sd_mmc_get_ro,
++ .get_cd = ubicom32sd_mmc_get_cd,
++ .enable_sdio_irq = ubicom32sd_mmc_enable_sdio_irq,
++};
++
++/*
++ * ubicom32sd_probe
++ */
++static int __devinit ubicom32sd_probe(struct platform_device *pdev)
++{
++ struct ubicom32sd_platform_data *pdata = (struct ubicom32sd_platform_data *)pdev->dev.platform_data;
++ struct mmc_host *mmc;
++ struct ubicom32sd_data *ud;
++ struct resource *res_regs;
++ struct resource *res_irq_tx;
++ struct resource *res_irq_rx;
++ int ret;
++
++ /*
++ * Get our resources, regs is the hardware driver base address
++ * and the tx and rx irqs are used to communicate with the
++ * hardware driver.
++ */
++ res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ res_irq_tx = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
++ res_irq_rx = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
++ if (!res_regs || !res_irq_tx || !res_irq_rx) {
++ ret = -EINVAL;
++ goto fail;
++ }
++
++ /*
++ * Reserve any gpios we need
++ */
++ ret = gpio_request(pdata->cards[0].pin_wp, "sd-wp");
++ if (ret) {
++ goto fail;
++ }
++ gpio_direction_input(pdata->cards[0].pin_wp);
++
++ ret = gpio_request(pdata->cards[0].pin_cd, "sd-cd");
++ if (ret) {
++ goto fail_cd;
++ }
++ gpio_direction_input(pdata->cards[0].pin_cd);
++
++ /*
++ * HACK: for the dual port controller on port F, we don't support the second port right now
++ */
++ if (pdata->ncards > 1) {
++ ret = gpio_request(pdata->cards[1].pin_pwr, "sd-pwr");
++ gpio_direction_output(pdata->cards[1].pin_pwr, !pdata->cards[1].pwr_polarity);
++ gpio_direction_output(pdata->cards[1].pin_pwr, pdata->cards[1].pwr_polarity);
++ }
++
++ ret = gpio_request(pdata->cards[0].pin_pwr, "sd-pwr");
++ if (ret) {
++ goto fail_pwr;
++ }
++ gpio_direction_output(pdata->cards[0].pin_pwr, !pdata->cards[0].pwr_polarity);
++
++ /*
++ * Allocate the MMC driver, it includes memory for our data.
++ */
++ mmc = mmc_alloc_host(sizeof(struct ubicom32sd_data), &pdev->dev);
++ if (!mmc) {
++ ret = -ENOMEM;
++ goto fail_mmc;
++ }
++ ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++ ud->mmc = mmc;
++ ud->pdata = pdata;
++ ud->regs = (struct sdtio_vp_regs *)res_regs->start;
++ ud->irq_tx = res_irq_tx->start;
++ ud->irq_rx = res_irq_rx->start;
++ platform_set_drvdata(pdev, mmc);
++
++ ret = request_irq(ud->irq_rx, ubicom32sd_interrupt, IRQF_DISABLED, mmc_hostname(mmc), mmc);
++ if (ret) {
++ goto fail_mmc;
++ }
++
++ /*
++ * Fill in the mmc structure
++ */
++ mmc->ops = &ubicom32sd_ops;
++ mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_NEEDS_POLL | MMC_CAP_SDIO_IRQ |
++ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
++
++ mmc->f_min = ud->regs->f_min;
++ mmc->f_max = ud->regs->f_max;
++ mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
++
++ /*
++ * Setup some restrictions on transfers
++ *
++ * We allow up to SDTIO_MAX_SG_BLOCKS of data to DMA into, there are
++ * not really any "max_seg_size", "max_req_size", or "max_blk_count"
++ * restrictions (must be less than U32_MAX though), pick
++ * something large?!...
++ *
++ * The hardware can do up to 4095 bytes per block, since the spec
++ * only requires 2048, we'll set it to that and not worry about
++ * potential weird blk lengths.
++ */
++ mmc->max_hw_segs = SDTIO_MAX_SG_BLOCKS;
++ mmc->max_phys_segs = SDTIO_MAX_SG_BLOCKS;
++ mmc->max_seg_size = 1024 * 1024;
++ mmc->max_req_size = 1024 * 1024;
++ mmc->max_blk_count = 1024;
++
++ mmc->max_blk_size = 2048;
++
++ ubicom32sd_reset(ud);
++
++ /*
++ * enable interrupts
++ */
++ ud->int_en = 0;
++ ubicom32sd_send_command_sync(ud, SDTIO_COMMAND_SETUP_SDIO << SDTIO_COMMAND_SHIFT | SDTIO_COMMAND_FLAG_SDIO_INT_EN, 0);
++
++ mmc_add_host(mmc);
++
++ printk(KERN_INFO "%s at %p, irq %d/%d\n", mmc_hostname(mmc),
++ ud->regs, ud->irq_tx, ud->irq_rx);
++ return 0;
++
++fail_mmc:
++ gpio_free(pdata->cards[0].pin_pwr);
++fail_pwr:
++ gpio_free(pdata->cards[0].pin_cd);
++fail_cd:
++ gpio_free(pdata->cards[0].pin_wp);
++fail:
++ return ret;
++}
++
++/*
++ * ubicom32sd_remove
++ */
++static int __devexit ubicom32sd_remove(struct platform_device *pdev)
++{
++ struct mmc_host *mmc = platform_get_drvdata(pdev);
++
++ platform_set_drvdata(pdev, NULL);
++
++ if (mmc) {
++ struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc);
++
++ gpio_free(ud->pdata->cards[0].pin_pwr);
++ gpio_free(ud->pdata->cards[0].pin_cd);
++ gpio_free(ud->pdata->cards[0].pin_wp);
++
++ mmc_remove_host(mmc);
++ mmc_free_host(mmc);
++ }
++
++ /*
++ * Note that our data is allocated as part of the mmc structure
++ * so we don't need to free it.
++ */
++ return 0;
++}
++
++static struct platform_driver ubicom32sd_driver = {
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++ .probe = ubicom32sd_probe,
++ .remove = __devexit_p(ubicom32sd_remove),
++#if 0
++ .suspend = ubicom32sd_suspend,
++ .resume = ubicom32sd_resume,
++#endif
++};
++
++/*
++ * ubicom32sd_init
++ */
++static int __init ubicom32sd_init(void)
++{
++ return platform_driver_register(&ubicom32sd_driver);
++}
++module_init(ubicom32sd_init);
++
++/*
++ * ubicom32sd_exit
++ */
++static void __exit ubicom32sd_exit(void)
++{
++ platform_driver_unregister(&ubicom32sd_driver);
++}
++module_exit(ubicom32sd_exit);
++
++MODULE_AUTHOR("Patrick Tjin");
++MODULE_DESCRIPTION("Ubicom32 Secure Digital Host Controller Interface driver");
++MODULE_LICENSE("GPL");
++
+--- a/drivers/mtd/devices/Kconfig
++++ b/drivers/mtd/devices/Kconfig
+@@ -104,6 +104,17 @@ config M25PXX_USE_FAST_READ
+ help
+ This option enables FAST_READ access supported by ST M25Pxx.
+
++config MTD_UBI32_M25P80
++ tristate "Ubicom processor support for most SPI Flash chips (AT26DF, M25P, W25X, ...)"
++ depends on UBICOM32
++ default y
++ help
++ This enables access to most modern SPI flash chips, used for
++ program and data storage. Series supported include Atmel AT26DF,
++ Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips
++ are supported as well. See the driver source for the current list,
++ or to add other chips.
++
+ config MTD_SLRAM
+ tristate "Uncached system RAM"
+ help
+--- a/drivers/mtd/devices/Makefile
++++ b/drivers/mtd/devices/Makefile
+@@ -16,3 +16,4 @@ obj-$(CONFIG_MTD_LART) += lart.o
+ obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o
+ obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o
+ obj-$(CONFIG_MTD_M25P80) += m25p80.o
++obj-$(CONFIG_MTD_UBI32_M25P80) += ubi32-m25p80.o
+--- /dev/null
++++ b/drivers/mtd/devices/ubi32-m25p80.c
+@@ -0,0 +1,1066 @@
++/*
++ * drivers/mtd/devices/ubi32-m25p80.c
++ * NOR flash driver, Ubicom processor internal SPI flash interface.
++ *
++ * This code instantiates the serial flash that contains the
++ * original bootcode. The serial flash start at address 0x60000000
++ * in both Ubicom32V3 and Ubicom32V4 ISAs.
++ *
++ * This piece of flash is made to appear as a Memory Technology
++ * Device (MTD) with this driver to allow Read/Write/Erase operations.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/types.h>
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/mtd/physmap.h>
++#include <linux/spi/spi.h>
++#include <linux/spi/flash.h>
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/interrupt.h>
++#include <linux/mutex.h>
++
++#include <asm/ip5000.h>
++#include <asm/devtree.h>
++
++#define UBICOM32_FLASH_BASE 0x60000000
++#define UBICOM32_FLASH_MAX_SIZE 0x01000000
++#define UBICOM32_FLASH_START 0x00000000
++#define UBICOM32_KERNEL_OFFSET 0x00010000 /* The kernel starts after Ubicom
++ * .protect section. */
++
++static struct mtd_partition ubicom32_flash_partitions[] = {
++ {
++ .name = "Bootloader", /* Protected Section
++ * Partition */
++ .size = 0x10000,
++ .offset = UBICOM32_FLASH_START,
++// .mask_flags = MTD_WRITEABLE /* Mark Read-only */
++ },
++ {
++ .name = "Kernel", /* Kernel Partition. */
++ .size = 0, /* this will be set up during
++ * probe stage. At that time we
++ * will know end of linux image
++ * in flash. */
++ .offset = MTDPART_OFS_APPEND, /* Starts right after Protected
++ * section. */
++// .mask_flags = MTD_WRITEABLE /* Mark Read-only */
++ },
++ {
++ .name = "Rest", /* Rest of the flash. */
++ .size = 0x200000, /* Use up what remains in the
++ * flash. */
++ .offset = MTDPART_OFS_NXTBLK, /* Starts right after Protected
++ * section. */
++ }
++};
++
++static struct flash_platform_data ubicom32_flash_data = {
++ .name = "ubicom32_boot_flash",
++ .parts = ubicom32_flash_partitions,
++ .nr_parts = ARRAY_SIZE(ubicom32_flash_partitions),
++};
++
++static struct resource ubicom32_flash_resource[] = {
++ {
++ .start = UBICOM32_FLASH_BASE,
++ .end = UBICOM32_FLASH_BASE +
++ UBICOM32_FLASH_MAX_SIZE - 1,
++ .flags = IORESOURCE_MEM,
++ },
++};
++
++static struct platform_device ubicom32_flash_device = {
++ .name = "ubicom32flashdriver",
++ .id = 0, /* Bus number */
++ .num_resources = ARRAY_SIZE(ubicom32_flash_resource),
++ .resource = ubicom32_flash_resource,
++ .dev = {
++ .platform_data = &ubicom32_flash_data,
++ },
++};
++
++static struct platform_device *ubicom32_flash_devices[] = {
++ &ubicom32_flash_device,
++};
++
++static int __init ubicom32_flash_init(void)
++{
++ printk(KERN_INFO "%s(): registering device resources\n",
++ __FUNCTION__);
++ platform_add_devices(ubicom32_flash_devices,
++ ARRAY_SIZE(ubicom32_flash_devices));
++ return 0;
++}
++
++arch_initcall(ubicom32_flash_init);
++
++/*
++ * MTD SPI driver for ST M25Pxx (and similar) serial flash chips through
++ * Ubicom32 SPI controller.
++ *
++ * Author: Mike Lavender, mike@steroidmicros.com
++ *
++ * Copyright (c) 2005, Intec Automation Inc.
++ *
++ * Some parts are based on lart.c by Abraham Van Der Merwe
++ *
++ * Cleaned up and generalized based on mtd_dataflash.c
++ *
++ * This code is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#define FLASH_PAGESIZE 256
++
++/* Flash opcodes. */
++#define OPCODE_WREN 0x06 /* Write enable */
++#define OPCODE_RDSR 0x05 /* Read status register */
++#define OPCODE_READ 0x03 /* Read data bytes (low frequency) */
++#define OPCODE_FAST_READ 0x0b /* Read data bytes (high frequency) */
++#define OPCODE_PP 0x02 /* Page program (up to 256 bytes) */
++#define OPCODE_BE_4K 0x20 /* Erase 4KiB block */
++#define OPCODE_BE_32K 0x52 /* Erase 32KiB block */
++#define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */
++#define OPCODE_RDID 0x9f /* Read JEDEC ID */
++
++/* Status Register bits. */
++#define SR_WIP 1 /* Write in progress */
++#define SR_WEL 2 /* Write enable latch */
++/* meaning of other SR_* bits may differ between vendors */
++#define SR_BP0 4 /* Block protect 0 */
++#define SR_BP1 8 /* Block protect 1 */
++#define SR_BP2 0x10 /* Block protect 2 */
++#define SR_SRWD 0x80 /* SR write protect */
++
++/* Define max times to check status register before we give up. */
++#define MAX_READY_WAIT_COUNT 100000
++
++
++#ifdef CONFIG_MTD_PARTITIONS
++#define mtd_has_partitions() (1)
++#else
++#define mtd_has_partitions() (0)
++#endif
++
++/*
++ * Ubicom32 FLASH Command Set
++ */
++#define FLASH_FC_INST_CMD 0x00 /* for SPI command only transaction */
++#define FLASH_FC_INST_WR 0x01 /* for SPI write transaction */
++#define FLASH_FC_INST_RD 0x02 /* for SPI read transaction */
++
++#define ALIGN_DOWN(v, a) ((v) & ~((a) - 1))
++#define ALIGN_UP(v, a) (((v) + ((a) - 1)) & ~((a) - 1))
++
++#define FLASH_COMMAND_KICK_OFF(io) \
++ asm volatile( \
++ " bset "D(IO_INT_CLR)"(%0), #0, #%%bit("D(IO_XFL_INT_DONE)") \n\t" \
++ " jmpt.t .+4 \n\t" \
++ " bset "D(IO_INT_SET)"(%0), #0, #%%bit("D(IO_XFL_INT_START)") \n\t" \
++ : \
++ : "a" (io) \
++ : "memory", "cc" \
++ );
++
++#define FLASH_COMMAND_WAIT_FOR_COMPLETION(io) \
++ asm volatile( \
++ " btst "D(IO_INT_STATUS)"(%0), #%%bit("D(IO_XFL_INT_DONE)") \n\t" \
++ " jmpeq.f .-4 \n\t" \
++ : \
++ : "a" (io) \
++ : "memory", "cc" \
++ );
++
++#define FLASH_COMMAND_EXEC(io) \
++ FLASH_COMMAND_KICK_OFF(io) \
++ FLASH_COMMAND_WAIT_FOR_COMPLETION(io)
++
++
++#define OSC1_FREQ 12000000
++#define TEN_MICRO_SECONDS (OSC1_FREQ * 10 / 1000000)
++
++/*
++ * We will have to eventually replace this null definition with the real thing.
++ */
++#define WATCHDOG_RESET()
++
++#define EXTFLASH_WRITE_FIFO_SIZE 32
++#define EXTFLASH_WRITE_BLOCK_SIZE EXTFLASH_WRITE_FIFO_SIZE /* limit the size to
++ * FIFO capacity, so
++ * the thread can be
++ * suspended. */
++
++#define JFFS2_FILESYSTEM_SIZE 0x100000
++
++/****************************************************************************/
++
++struct m25p {
++ struct platform_device *plt_dev;
++ struct mutex lock;
++ struct mtd_info mtd;
++ unsigned partitioned:1;
++ u8 erase_opcode;
++ u8 command[4];
++};
++
++static inline struct m25p *mtd_to_m25p(struct mtd_info *mtd)
++{
++ return container_of(mtd, struct m25p, mtd);
++}
++
++/****************************************************************************/
++
++/*
++ * Internal helper functions
++ */
++
++/*
++ * Read the status register, returning its value in the location
++ * Return the status register value.
++ * Returns negative if error occurred.
++ */
++static int read_sr(struct m25p *flash)
++{
++ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++
++ io->ctl1 &= ~IO_XFL_CTL1_MASK;
++ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) |
++ IO_XFL_CTL1_FC_DATA(1);
++ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_RDSR);
++ FLASH_COMMAND_EXEC(io);
++
++ return io->status1 & 0xff;
++}
++
++/*
++ * mem_flash_io_read_u32()
++ */
++static u32 mem_flash_io_read_u32(u32 addr)
++{
++ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++ io->ctl1 &= ~IO_XFL_CTL1_MASK;
++ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) |
++ IO_XFL_CTL1_FC_DATA(4) | IO_XFL_CTL1_FC_DUMMY(1) |
++ IO_XFL_CTL1_FC_ADDR;
++ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_FAST_READ) |
++ IO_XFL_CTL2_FC_ADDR(addr);
++ FLASH_COMMAND_EXEC(io);
++ return io->status1;
++}
++
++/*
++ * mem_flash_read_u8()
++ */
++static u8 mem_flash_read_u8(u32 addr)
++{
++ u32 tmp_addr = ALIGN_DOWN(addr, 4);
++ u32 tmp_data = mem_flash_io_read_u32(tmp_addr);
++ u8 *ptr = (u8 *)&tmp_data;
++ return ptr[addr & 0x3];
++}
++
++/*
++ * mem_flash_read()
++ * No need to lock as read is implemented with ireads (same as normal flash
++ * execution).
++ */
++static void mem_flash_read(u32 addr, void *dst, size_t length)
++{
++ /*
++ * Range check
++ */
++ /*
++ * Fix source alignment.
++ */
++ while (addr & 0x03) {
++ if (length == 0) {
++ return;
++ }
++ *((u8 *)dst) = mem_flash_read_u8(addr++);
++ dst++;
++ length--;
++ }
++
++ while (length >= 4) {
++ u32 tmp_data = mem_flash_io_read_u32(addr);
++ addr += 4;
++ length -= 4;
++
++ /*
++ * Send the data to the destination.
++ */
++ memcpy((void *)dst, (void *)&tmp_data, 4);
++ dst += 4;
++ }
++
++ while (length--) {
++ *((u8 *)dst) = mem_flash_read_u8(addr++);
++ dst++;
++ }
++}
++
++/*
++ * mem_flash_wait_until_complete()
++ */
++static void mem_flash_wait_until_complete(void)
++{
++ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++
++ do {
++ /*
++ * Put a delay here to deal with flash programming problem.
++ */
++ u32 mptval = UBICOM32_IO_TIMER->mptval + TEN_MICRO_SECONDS;
++ while (UBICOM32_IO_TIMER->mptval < mptval)
++ ;
++
++ io->ctl1 &= ~IO_XFL_CTL1_MASK;
++ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) |
++ IO_XFL_CTL1_FC_DATA(1);
++ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_RDSR);
++ FLASH_COMMAND_EXEC(io);
++ } while (io->status1 & SR_WIP);
++}
++
++/*
++ * mem_flash_write_next()
++ */
++static size_t mem_flash_write_next(u32 addr, u8 *buf, size_t length)
++{
++ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++ u32 data_start = addr;
++ u32 data_end = addr + length;
++ size_t count;
++ u32 i, j;
++
++ /*
++ * Top limit address.
++ */
++ u32 block_start = ALIGN_DOWN(data_start, 4);
++ u32 block_end = block_start + EXTFLASH_WRITE_BLOCK_SIZE;
++
++ union {
++ u8 byte[EXTFLASH_WRITE_BLOCK_SIZE];
++ u32 word[EXTFLASH_WRITE_BLOCK_SIZE / 4];
++ } write_buf;
++
++ u32 *flash_addr = (u32 *)block_start;
++
++ /*
++ * The write block must be limited by FLASH internal buffer.
++ */
++ u32 block_end_align = ALIGN_DOWN(block_end, 256);
++ bool write_needed;
++
++ block_end = (block_end_align > block_start)
++ ? block_end_align : block_end;
++ data_end = (data_end <= block_end) ? data_end : block_end;
++ block_end = ALIGN_UP(data_end, 4);
++ count = data_end - data_start;
++
++ /*
++ * Transfer data to a buffer.
++ */
++ for (i = 0; i < (block_end - block_start) / 4; i++) {
++ /*
++ * The FLASH read can hold D-cache for a long time.
++ * Use I/O operation to read FLASH to avoid starving other
++ * threads, especially HRT. (Do this for application only)
++ */
++ write_buf.word[i] = mem_flash_io_read_u32(
++ (u32)(&flash_addr[i]));
++ }
++
++ write_needed = false;
++ for (i = 0, j = (data_start - block_start);
++ i < (data_end - data_start); i++, j++) {
++ write_needed = write_needed || (write_buf.byte[j] != buf[i]);
++ write_buf.byte[j] &= buf[i];
++ }
++
++
++ /*
++ * If the data in FLASH is identical to what to be written. Then skip
++ * it.
++ */
++ if (write_needed) {
++ /*
++ * Write to flash.
++ */
++ void *tmp __attribute__((unused));
++ s32 extra_words;
++
++ asm volatile(
++ " move.4 %0, %2 \n\t"
++ " bset "D(IO_INT_SET)"(%1), #0, #%%bit("D(IO_PORTX_INT_FIFO_TX_RESET)") \n\t"
++ " pipe_flush 0 \n\t"
++ " .rept "D(EXTFLASH_WRITE_FIFO_SIZE / 4)" \n\t"
++ " move.4 "D(IO_TX_FIFO)"(%1), (%0)4++ \n\t"
++ " .endr \n\t"
++ : "=&a" (tmp)
++ : "a" (io), "r" (&write_buf.word[0])
++ : "memory", "cc"
++ );
++
++ /* Lock FLASH for write access. */
++ io->ctl0 |= IO_XFL_CTL0_MCB_LOCK;
++
++ /* Command: WREN */
++ io->ctl1 &= ~IO_XFL_CTL1_MASK;
++ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_CMD);
++ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_WREN);
++ FLASH_COMMAND_EXEC(io);
++
++ /* Command: BYTE PROGRAM */
++ io->ctl1 &= ~IO_XFL_CTL1_MASK;
++ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_WR) |
++ IO_XFL_CTL1_FC_DATA(block_end - block_start) |
++ IO_XFL_CTL1_FC_ADDR;
++ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_PP) |
++ IO_XFL_CTL2_FC_ADDR(block_start);
++ FLASH_COMMAND_KICK_OFF(io);
++
++ extra_words = (s32)(block_end - block_start -
++ EXTFLASH_WRITE_FIFO_SIZE) / 4;
++ if (extra_words > 0) {
++ asm volatile(
++ " move.4 %0, %3 \n\t"
++ "1: cmpi "D(IO_FIFO_LEVEL)"(%1), #4 \n\t"
++ " jmpgt.s.t 1b \n\t"
++ " move.4 "D(IO_TX_FIFO)"(%1), (%0)4++ \n\t"
++ " add.4 %2, #-1, %2 \n\t"
++ " jmpgt.t 1b \n\t"
++ : "=&a" (tmp)
++ : "a" (io), "d" (extra_words),
++ "r" (&write_buf.word[EXTFLASH_WRITE_FIFO_SIZE / 4])
++ : "memory", "cc"
++ );
++ }
++ FLASH_COMMAND_WAIT_FOR_COMPLETION(io);
++
++ mem_flash_wait_until_complete();
++
++
++ /* Unlock FLASH for cache access. */
++ io->ctl0 &= ~IO_XFL_CTL0_MCB_LOCK;
++ }
++
++ /*
++ * Complete.
++ */
++ return count;
++}
++
++/*
++ * mem_flash_write()
++ */
++static void mem_flash_write(u32 addr, const void *src, size_t length)
++{
++ /*
++ * Write data
++ */
++ u8_t *ptr = (u8_t *)src;
++ while (length) {
++ size_t count = mem_flash_write_next(addr, ptr, length);
++ addr += count;
++ ptr += count;
++ length -= count;
++ }
++}
++
++/*
++ * Service routine to read status register until ready, or timeout occurs.
++ * Returns non-zero if error.
++ */
++static int wait_till_ready(struct m25p *flash)
++{
++ int count;
++ int sr;
++
++ /* one chip guarantees max 5 msec wait here after page writes,
++ * but potentially three seconds (!) after page erase.
++ */
++ for (count = 0; count < MAX_READY_WAIT_COUNT; count++) {
++ u32 mptval;
++ sr = read_sr(flash);
++ if (sr < 0)
++ break;
++ else if (!(sr & SR_WIP))
++ return 0;
++
++ /*
++ * Put a 10us delay here to deal with flash programming problem.
++ */
++ mptval = UBICOM32_IO_TIMER->mptval + TEN_MICRO_SECONDS;
++ while ((s32)(mptval - UBICOM32_IO_TIMER->mptval) > 0) {
++ WATCHDOG_RESET();
++ }
++ /* REVISIT sometimes sleeping would be best */
++ }
++
++ return 1;
++}
++
++/*
++ * mem_flash_erase_page()
++ */
++static void mem_flash_erase_page(u32 addr)
++{
++ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++
++ /* Lock FLASH for write access. */
++ io->ctl0 |= IO_XFL_CTL0_MCB_LOCK;
++
++ /* Command: WREN */
++ io->ctl1 &= ~IO_XFL_CTL1_MASK;
++ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_CMD);
++ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_WREN);
++ FLASH_COMMAND_EXEC(io);
++
++ /* Command: ERASE */
++ io->ctl1 &= ~IO_XFL_CTL1_MASK;
++ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_CMD) |
++ IO_XFL_CTL1_FC_ADDR;
++ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_SE) |
++ IO_XFL_CTL2_FC_ADDR(addr);
++ FLASH_COMMAND_EXEC(io);
++
++ mem_flash_wait_until_complete();
++
++ /* Unlock FLASH for cache access. */
++ io->ctl0 &= ~IO_XFL_CTL0_MCB_LOCK;
++}
++
++/*
++ * mem_flash_erase()
++ */
++static u32 mem_flash_erase(u32 addr, u32 length)
++{
++ /*
++ * Calculate the endaddress to be the first address of the page
++ * just beyond this erase section of pages.
++ */
++ u32 endaddr = addr + length;
++
++ /*
++ * Erase.
++ */
++ while (addr < endaddr) {
++ u32 test_addr = addr;
++ mem_flash_erase_page(addr);
++
++ /*
++ * Test how much was erased as actual flash page at this address
++ * may be smaller than the expected page size.
++ */
++ while (test_addr < endaddr) {
++ /*
++ * The FLASH read can hold D-cache for a long time. Use
++ * I/O operation to read FLASH to avoid starving other
++ * threads, especially HRT. (Do this for application
++ * only)
++ */
++ if (mem_flash_io_read_u32(test_addr) != 0xFFFFFFFF) {
++ break;
++ }
++ test_addr += 4;
++ }
++ if (test_addr == addr) {
++ printk("erase failed at address 0x%x, skipping",
++ test_addr);
++ test_addr += 4;
++ return 1;
++ }
++ addr = test_addr;
++ }
++ return 0;
++}
++
++
++/****************************************************************************/
++
++/*
++ * MTD implementation
++ */
++
++/*
++ * Erase an address range on the flash chip. The address range may extend
++ * one or more erase sectors. Return an error is there is a problem erasing.
++ */
++static int ubicom32_flash_driver_erase(struct mtd_info *mtd,
++ struct erase_info *instr)
++{
++ struct m25p *flash = mtd_to_m25p(mtd);
++ u32 addr, len;
++
++ DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
++ flash->plt_dev->dev.bus_id, __FUNCTION__, "at",
++ (u32)instr->addr, instr->len);
++
++ /* sanity checks */
++ if (instr->addr + instr->len > flash->mtd.size)
++ return -EINVAL;
++ if ((instr->addr % mtd->erasesize) != 0
++ || (instr->len % mtd->erasesize) != 0) {
++ return -EINVAL;
++ }
++
++ addr = instr->addr + UBICOM32_FLASH_BASE;
++ len = instr->len;
++
++ mutex_lock(&flash->lock);
++
++ /* REVISIT in some cases we could speed up erasing large regions
++ * by using OPCODE_SE instead of OPCODE_BE_4K
++ */
++
++ /* now erase those sectors */
++ if (mem_flash_erase(addr, len)) {
++ instr->state = MTD_ERASE_FAILED;
++ mutex_unlock(&flash->lock);
++ return -EIO;
++ }
++
++ mutex_unlock(&flash->lock);
++ instr->state = MTD_ERASE_DONE;
++ mtd_erase_callback(instr);
++ return 0;
++}
++
++/*
++ * Read an address range from the flash chip. The address range
++ * may be any size provided it is within the physical boundaries.
++ */
++static int ubicom32_flash_driver_read(struct mtd_info *mtd, loff_t from,
++ size_t len, size_t *retlen, u_char *buf)
++{
++ struct m25p *flash = mtd_to_m25p(mtd);
++ u32 base_addr = UBICOM32_FLASH_BASE + from;
++
++ DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
++ flash->plt_dev->dev.bus_id, __FUNCTION__, "from",
++ (u32)from, len);
++
++ /* sanity checks */
++ if (!len)
++ return 0;
++
++ if (from + len > flash->mtd.size)
++ return -EINVAL;
++
++ /* Byte count starts at zero. */
++ if (retlen)
++ *retlen = 0;
++
++ mutex_lock(&flash->lock);
++
++ /* Wait till previous write/erase is done. */
++ if (wait_till_ready(flash)) {
++ /* REVISIT status return?? */
++ mutex_unlock(&flash->lock);
++ return 1;
++ }
++
++ mem_flash_read(base_addr, (void *)buf, len);
++
++ if (retlen)
++ *retlen = len;
++
++ mutex_unlock(&flash->lock);
++
++ return 0;
++}
++
++/*
++ * Write an address range to the flash chip. Data must be written in
++ * FLASH_PAGESIZE chunks. The address range may be any size provided
++ * it is within the physical boundaries.
++ */
++static int ubicom32_flash_driver_write(struct mtd_info *mtd, loff_t to,
++ size_t len, size_t *retlen,
++ const u_char *buf)
++{
++ struct m25p *flash = mtd_to_m25p(mtd);
++ u32 base_addr = UBICOM32_FLASH_BASE + to;
++ DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
++ flash->plt_dev->dev.bus_id, __FUNCTION__, "to",
++ (u32)to, len);
++
++ if (retlen)
++ *retlen = 0;
++
++ /* sanity checks */
++ if (!len)
++ return 0;
++
++ if (to + len > flash->mtd.size)
++ return -EINVAL;
++
++ mutex_lock(&flash->lock);
++
++ mem_flash_write(base_addr, (void *) buf, len);
++
++ /* Wait until finished previous write command. */
++ if (wait_till_ready(flash)) {
++ mutex_unlock(&flash->lock);
++ return 1;
++ }
++
++ if (retlen)
++ *retlen = len;
++
++ mutex_unlock(&flash->lock);
++ return 0;
++}
++
++
++/****************************************************************************/
++
++/*
++ * SPI device driver setup and teardown
++ */
++
++struct flash_info {
++ char *name;
++
++ /* JEDEC id zero means "no ID" (most older chips); otherwise it has
++ * a high byte of zero plus three data bytes: the manufacturer id,
++ * then a two byte device id.
++ */
++ u32 jedec_id;
++
++ /* The size listed here is what works with OPCODE_SE, which isn't
++ * necessarily called a "sector" by the vendor.
++ */
++ unsigned sector_size;
++ u16 n_sectors;
++
++ u16 flags;
++#define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */
++};
++
++
++/* NOTE: double check command sets and memory organization when you add
++ * more flash chips. This current list focusses on newer chips, which
++ * have been converging on command sets which including JEDEC ID.
++ */
++static struct flash_info __devinitdata m25p_data[] = {
++
++ /* Atmel -- some are (confusingly) marketed as "DataFlash" */
++ { "at25fs010", 0x1f6601, 32 * 1024, 4, SECT_4K, },
++ { "at25fs040", 0x1f6604, 64 * 1024, 8, SECT_4K, },
++
++ { "at25df041a", 0x1f4401, 64 * 1024, 8, SECT_4K, },
++
++ { "at26f004", 0x1f0400, 64 * 1024, 8, SECT_4K, },
++ { "at26df081a", 0x1f4501, 64 * 1024, 16, SECT_4K, },
++ { "at26df161a", 0x1f4601, 64 * 1024, 32, SECT_4K, },
++ { "at26df321", 0x1f4701, 64 * 1024, 64, SECT_4K, },
++
++ /* Spansion -- single (large) sector size only, at least
++ * for the chips listed here (without boot sectors).
++ */
++ { "s25sl004a", 0x010212, 64 * 1024, 8, },
++ { "s25sl008a", 0x010213, 64 * 1024, 16, },
++ { "s25sl016a", 0x010214, 64 * 1024, 32, },
++ { "s25sl032a", 0x010215, 64 * 1024, 64, },
++ { "s25sl064a", 0x010216, 64 * 1024, 128, },
++
++ /* SST -- large erase sizes are "overlays", "sectors" are 4K */
++ { "sst25vf040b", 0xbf258d, 64 * 1024, 8, SECT_4K, },
++ { "sst25vf080b", 0xbf258e, 64 * 1024, 16, SECT_4K, },
++ { "sst25vf016b", 0xbf2541, 64 * 1024, 32, SECT_4K, },
++ { "sst25vf032b", 0xbf254a, 64 * 1024, 64, SECT_4K, },
++
++ /* ST Microelectronics -- newer production may have feature updates */
++ { "m25p05", 0x202010, 32 * 1024, 2, },
++ { "m25p10", 0x202011, 32 * 1024, 4, },
++ { "m25p20", 0x202012, 64 * 1024, 4, },
++ { "m25p40", 0x202013, 64 * 1024, 8, },
++ { "m25p80", 0, 64 * 1024, 16, },
++ { "m25p16", 0x202015, 64 * 1024, 32, },
++ { "m25p32", 0x202016, 64 * 1024, 64, },
++ { "m25p64", 0x202017, 64 * 1024, 128, },
++ { "m25p128", 0x202018, 256 * 1024, 64, },
++
++ { "m45pe80", 0x204014, 64 * 1024, 16, },
++ { "m45pe16", 0x204015, 64 * 1024, 32, },
++
++ { "m25pe80", 0x208014, 64 * 1024, 16, },
++ { "m25pe16", 0x208015, 64 * 1024, 32, SECT_4K, },
++
++ /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */
++ { "w25x10", 0xef3011, 64 * 1024, 2, SECT_4K, },
++ { "w25x20", 0xef3012, 64 * 1024, 4, SECT_4K, },
++ { "w25x40", 0xef3013, 64 * 1024, 8, SECT_4K, },
++ { "w25x80", 0xef3014, 64 * 1024, 16, SECT_4K, },
++ { "w25x16", 0xef3015, 64 * 1024, 32, SECT_4K, },
++ { "w25x32", 0xef3016, 64 * 1024, 64, SECT_4K, },
++ { "w25x64", 0xef3017, 64 * 1024, 128, SECT_4K, },
++
++ /* Macronix -- mx25lxxx */
++ { "mx25l32", 0xc22016, 64 * 1024, 64, },
++ { "mx25l64", 0xc22017, 64 * 1024, 128, },
++ { "mx25l128", 0xc22018, 64 * 1024, 256, },
++
++};
++
++struct flash_info *__devinit jedec_probe(struct platform_device *spi)
++{
++ int tmp;
++ u32 jedec;
++ struct flash_info *info;
++ struct ubicom32_io_port *io = (struct ubicom32_io_port *)RA;
++
++ /*
++ * Setup and run RDID command on the flash.
++ */
++ io->ctl1 &= ~IO_XFL_CTL1_MASK;
++ io->ctl1 |= IO_XFL_CTL1_FC_INST(FLASH_FC_INST_RD) |
++ IO_XFL_CTL1_FC_DATA(3);
++ io->ctl2 = IO_XFL_CTL2_FC_CMD(OPCODE_RDID);
++ FLASH_COMMAND_EXEC(io);
++
++ jedec = io->status1 & 0x00ffffff;
++
++ for (tmp = 0, info = m25p_data;
++ tmp < ARRAY_SIZE(m25p_data);
++ tmp++, info++) {
++ if (info->jedec_id == jedec)
++ return info;
++ }
++ dev_err(&spi->dev, "unrecognized JEDEC id %06x\n", jedec);
++ return NULL;
++}
++
++
++/*
++ * board specific setup should have ensured the SPI clock used here
++ * matches what the READ command supports, at least until this driver
++ * understands FAST_READ (for clocks over 25 MHz).
++ */
++static int __devinit ubicom32_flash_probe(struct platform_device *spi)
++{
++ struct flash_platform_data *data;
++ struct m25p *flash;
++ struct flash_info *info;
++ unsigned i;
++
++ /* Platform data helps sort out which chip type we have, as
++ * well as how this board partitions it. If we don't have
++ * a chip ID, try the JEDEC id commands; they'll work for most
++ * newer chips, even if we don't recognize the particular chip.
++ */
++ data = spi->dev.platform_data;
++ if (data && data->type) {
++ for (i = 0, info = m25p_data;
++ i < ARRAY_SIZE(m25p_data);
++ i++, info++) {
++ if (strcmp(data->type, info->name) == 0)
++ break;
++ }
++
++ /* unrecognized chip? */
++ if (i == ARRAY_SIZE(m25p_data)) {
++ DEBUG(MTD_DEBUG_LEVEL0, "%s: unrecognized id %s\n",
++ spi->dev.bus_id, data->type);
++ info = NULL;
++
++ /* recognized; is that chip really what's there? */
++ } else if (info->jedec_id) {
++ struct flash_info *chip = jedec_probe(spi);
++
++ if (!chip || chip != info) {
++ dev_warn(&spi->dev, "found %s, expected %s\n",
++ chip ? chip->name : "UNKNOWN",
++ info->name);
++ info = NULL;
++ }
++ }
++ } else
++ info = jedec_probe(spi);
++
++ if (!info)
++ return -ENODEV;
++
++ flash = kzalloc(sizeof *flash, GFP_KERNEL);
++ if (!flash)
++ return -ENOMEM;
++
++ flash->plt_dev = spi;
++ mutex_init(&flash->lock);
++ dev_set_drvdata(&spi->dev, flash);
++
++ if (data && data->name)
++ flash->mtd.name = data->name;
++ else
++ flash->mtd.name = spi->dev.bus_id;
++
++ flash->mtd.type = MTD_NORFLASH;
++ flash->mtd.writesize = 1;
++ flash->mtd.flags = MTD_CAP_NORFLASH;
++ flash->mtd.size = info->sector_size * info->n_sectors;
++ flash->mtd.erase = ubicom32_flash_driver_erase;
++ flash->mtd.read = ubicom32_flash_driver_read;
++ flash->mtd.write = ubicom32_flash_driver_write;
++
++ /* prefer "small sector" erase if possible */
++ /*
++ * The Ubicom erase code does not use the opcode for smaller sectors,
++ * so disable that functionality and keep erasesize == sector_size
++ * so that the test in ubicom32_flash_driver_erase works properly.
++ *
++ * This was: `if (info->flags & SECT_4K) {' instead of `if (0) {'
++ */
++ if (0) {
++ flash->erase_opcode = OPCODE_BE_4K;
++ flash->mtd.erasesize = 4096;
++ } else {
++ flash->erase_opcode = OPCODE_SE;
++ flash->mtd.erasesize = info->sector_size;
++ }
++
++ dev_info(&spi->dev, "%s (%d Kbytes)\n", info->name,
++ flash->mtd.size / 1024);
++
++ DEBUG(MTD_DEBUG_LEVEL2,
++ "mtd .name = %s, .size = 0x%.8x (%uMiB) "
++ ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n",
++ flash->mtd.name,
++ flash->mtd.size, flash->mtd.size / (1024*1024),
++ flash->mtd.erasesize, flash->mtd.erasesize / 1024,
++ flash->mtd.numeraseregions);
++
++ if (flash->mtd.numeraseregions)
++ for (i = 0; i < flash->mtd.numeraseregions; i++)
++ DEBUG(MTD_DEBUG_LEVEL2,
++ "mtd.eraseregions[%d] = { .offset = 0x%.8x, "
++ ".erasesize = 0x%.8x (%uKiB), "
++ ".numblocks = %d }\n",
++ i, flash->mtd.eraseregions[i].offset,
++ flash->mtd.eraseregions[i].erasesize,
++ flash->mtd.eraseregions[i].erasesize / 1024,
++ flash->mtd.eraseregions[i].numblocks);
++
++
++ /* partitions should match sector boundaries; and it may be good to
++ * use readonly partitions for writeprotected sectors (BP2..BP0).
++ */
++ if (mtd_has_partitions()) {
++ struct mtd_partition *parts = NULL;
++ int nr_parts = 0;
++
++#ifdef CONFIG_MTD_CMDLINE_PARTS
++ static const char *part_probes[] = { "cmdlinepart", NULL, };
++
++ nr_parts = parse_mtd_partitions(&flash->mtd,
++ part_probes, &parts, 0);
++#endif
++
++ if (nr_parts <= 0 && data && data->parts) {
++ parts = data->parts;
++ nr_parts = data->nr_parts;
++ if (nr_parts >= 2) {
++ /*
++ * Set last partition size to be 1M.
++ */
++ parts[1].size = flash->mtd.size -
++ parts[0].size - JFFS2_FILESYSTEM_SIZE;
++ parts[2].size = JFFS2_FILESYSTEM_SIZE;
++ }
++ }
++
++ if (nr_parts > 0) {
++ for (i = 0; i < nr_parts; i++) {
++ DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = "
++ "{.name = %s, .offset = 0x%.8x, "
++ ".size = 0x%.8x (%uKiB) }\n",
++ i, parts[i].name,
++ parts[i].offset,
++ parts[i].size,
++ parts[i].size / 1024);
++ }
++ flash->partitioned = 1;
++ return add_mtd_partitions(&flash->mtd, parts, nr_parts);
++ }
++ } else if (data->nr_parts)
++ dev_warn(&spi->dev, "ignoring %d default partitions on %s\n",
++ data->nr_parts, data->name);
++
++ return add_mtd_device(&flash->mtd) == 1 ? -ENODEV : 0;
++}
++
++
++static int __devexit ubicom32_flash_remove(struct spi_device *spi)
++{
++ struct m25p *flash = dev_get_drvdata(&spi->dev);
++ int status;
++
++ /* Clean up MTD stuff. */
++ if (mtd_has_partitions() && flash->partitioned)
++ status = del_mtd_partitions(&flash->mtd);
++ else
++ status = del_mtd_device(&flash->mtd);
++ if (status == 0)
++ kfree(flash);
++ return 0;
++}
++
++static struct platform_driver ubicom32_flash_driver = {
++ .driver = {
++ .name = "ubicom32flashdriver",
++ .bus = &platform_bus_type,
++ .owner = THIS_MODULE,
++ },
++ .probe = ubicom32_flash_probe,
++ .remove = NULL,
++};
++
++static int ubicom32_flash_driver_init(void)
++{
++ return platform_driver_register(&ubicom32_flash_driver);
++}
++
++
++static void ubicom32_flash_driver_exit(void)
++{
++ platform_driver_unregister(&ubicom32_flash_driver);
++}
++
++
++module_init(ubicom32_flash_driver_init);
++module_exit(ubicom32_flash_driver_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Mike Lavender");
++MODULE_DESCRIPTION("Ubicom32 MTD SPI driver for ST M25Pxx flash chips");
+--- a/drivers/net/Kconfig
++++ b/drivers/net/Kconfig
+@@ -2463,6 +2463,25 @@ config JME
+ To compile this driver as a module, choose M here. The module
+ will be called jme.
+
++config UBICOM32_GMAC
++ tristate "Ubicom Gigabit Ethernet support (EXPERIMENTAL)"
++ depends on UBICOM32
++ help
++ Gigabit Ethernet support for IP5K/IP7K
++
++config UBICOM32_NAPI
++ bool "USE NAPI (EXPERIMENTAL)"
++ depends on UBICOM32_GMAC
++ help
++ Use NAPI for Ubicom's Ethernet driver
++
++config UBICOM32_OCM_FOR_SKB
++ bool "USE OCM for SKB (EXPERIMENTAL)"
++ depends on UBICOM32_GMAC
++ default n
++ help
++ Allocate skb from OCM for Ethernet Receive
++
+ endif # NETDEV_1000
+
+ #
+--- a/drivers/net/Makefile
++++ b/drivers/net/Makefile
+@@ -262,4 +262,4 @@ obj-$(CONFIG_NETXEN_NIC) += netxen/
+ obj-$(CONFIG_NIU) += niu.o
+ obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
+ obj-$(CONFIG_SFC) += sfc/
+-
++obj-$(CONFIG_UBICOM32_GMAC) += ubi32-eth.o
+--- /dev/null
++++ b/drivers/net/ubi32-eth.c
+@@ -0,0 +1,699 @@
++/*
++ * drivers/net/ubi32-eth.c
++ * Ubicom32 ethernet TIO interface driver.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++/*
++ * ubi32_eth.c
++ * Ethernet driver for Ip5k/Ip7K
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/moduleparam.h>
++
++#include <linux/sched.h>
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/errno.h>
++#include <linux/types.h>
++#include <linux/interrupt.h>
++
++#include <linux/in.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/if_vlan.h>
++#include <linux/ip.h>
++#include <linux/tcp.h>
++#include <linux/skbuff.h>
++#include <asm/checksum.h>
++#include "ubi32-eth.h"
++#include <asm/ip5000.h>
++#include <asm/devtree.h>
++#include <asm/system.h>
++
++/* #define USE_POLLING */
++
++/*
++ * TODO:
++ * mac address from flash
++ * multicast filter
++ * ethtool support
++ * sysfs support
++ * skb->nrfrag support
++ * ioctl
++ * monitor phy status
++ */
++
++static const char *eth_if_name[UBI32_ETH_NUM_OF_DEVICES] =
++ {"eth_lan", "eth_wan", "eth_ultra"};
++static struct net_device *ubi32_eth_devices[UBI32_ETH_NUM_OF_DEVICES] =
++ {NULL, NULL, NULL};
++static u8_t mac_addr[UBI32_ETH_NUM_OF_DEVICES][ETH_ALEN] = {
++ {0x00, 0x03, 0x64, 'l', 'a', 'n'},
++ {0x00, 0x03, 0x64, 'w', 'a', 'n'},
++ {0x00, 0x03, 0x64, 'u', 'l', 't'}};
++
++int ubi32_eth_ocm_alloc;
++int ubi32_eth_ddr_alloc;
++
++static inline struct sk_buff *ubi32_alloc_skb(struct net_device *dev, unsigned int length)
++{
++#if (defined(CONFIG_ZONE_DMA) && defined(CONFIG_UBICOM32_OCM_FOR_SKB))
++ struct sk_buff *sk_buff;
++
++ if (dev != ubi32_eth_devices[0])
++ return __dev_alloc_skb(length, GFP_ATOMIC);
++
++ sk_buff = __dev_alloc_skb(length, GFP_ATOMIC | __GFP_NOWARN | __GFP_NORETRY | GFP_DMA);
++ if (sk_buff) {
++ ubi32_eth_ocm_alloc++;
++ return sk_buff;
++ } else {
++ ubi32_eth_ddr_alloc++;
++ return __dev_alloc_skb(length, GFP_ATOMIC);
++ }
++#else
++ return __dev_alloc_skb(length, GFP_ATOMIC);
++#endif
++}
++
++static void ubi32_eth_vp_rxtx_enable(struct net_device *dev)
++{
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++ priv->regs->command = UBI32_ETH_VP_CMD_RX_ENABLE | UBI32_ETH_VP_CMD_TX_ENABLE;
++ priv->regs->int_mask = (UBI32_ETH_VP_INT_RX | UBI32_ETH_VP_INT_TX);
++ ubicom32_set_interrupt(priv->vp_int_bit);
++}
++
++static void ubi32_eth_vp_rxtx_stop(struct net_device *dev)
++{
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++ priv->regs->command = 0;
++ priv->regs->int_mask = 0;
++ ubicom32_set_interrupt(priv->vp_int_bit);
++
++ /* Wait for graceful shutdown */
++ while (priv->regs->status & (UBI32_ETH_VP_STATUS_RX_STATE | UBI32_ETH_VP_STATUS_TX_STATE));
++}
++
++/*
++ * ubi32_eth_tx_done()
++ */
++static int ubi32_eth_tx_done(struct net_device *dev)
++{
++ struct ubi32_eth_private *priv;
++ struct sk_buff *skb;
++ volatile void *pdata;
++ struct ubi32_eth_dma_desc *desc;
++ u32_t count = 0;
++
++ priv = netdev_priv(dev);
++
++ priv->regs->int_status &= ~UBI32_ETH_VP_INT_TX;
++ while (priv->tx_tail != priv->regs->tx_out) {
++ pdata = priv->regs->tx_dma_ring[priv->tx_tail];
++ BUG_ON(pdata == NULL);
++
++ skb = container_of((void *)pdata, struct sk_buff, cb);
++ desc = (struct ubi32_eth_dma_desc *)pdata;
++ if (unlikely(!(desc->status & UBI32_ETH_VP_TX_OK))) {
++ atomic_inc((atomic_t *)&priv->stats.tx_errors);
++ } else {
++ priv->stats.tx_packets++;
++ priv->stats.tx_bytes += skb->len;
++ }
++ dev_kfree_skb_any(skb);
++ priv->regs->tx_dma_ring[priv->tx_tail] = NULL;
++ priv->tx_tail = (priv->tx_tail + 1) & TX_DMA_RING_MASK;
++ count++;
++ }
++
++ if (unlikely(priv->status & UBI32_ETH_PRIV_STATUS_TX_Q_FULL)) {
++ spin_lock(&priv->lock);
++ priv->status &= ~UBI32_ETH_PRIV_STATUS_TX_Q_FULL;
++ netif_wake_queue(dev);
++ spin_unlock(&priv->lock);
++ }
++ return count;
++}
++
++/*
++ * ubi32_eth_receive()
++ * To avoid locking overhead, this is called only
++ * by tasklet when not using NAPI, or
++ * by NAPI poll when using NAPI.
++ * return number of frames processed
++ */
++static int ubi32_eth_receive(struct net_device *dev, int quota)
++{
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++ unsigned short rx_in = priv->regs->rx_in;
++ struct sk_buff *skb;
++ struct ubi32_eth_dma_desc *desc = NULL;
++ volatile void *pdata;
++
++ /* The number of NET_SKB_PAD bytes are already reserved by skb */
++ int extra_reserve = UBI32_ETH_RESERVE_SPACE - NET_SKB_PAD + UBI32_ETH_RESERVE_EXTRA;
++ int extra_alloc = extra_reserve + UBI32_ETH_TRASHED_MEMORY;
++ int i, replenish_cnt, count = 0;
++ int replenish_max = RX_DMA_MAX_QUEUE_SIZE;
++#if (defined(CONFIG_ZONE_DMA) && defined(CONFIG_UBICOM32_OCM_FOR_SKB))
++ if (dev == ubi32_eth_devices[0])
++ replenish_max = 21;
++#endif
++ BUG_ON((extra_reserve & 3) != NET_IP_ALIGN); /* Must provide NET_IP_ALIGN (0 or 2) */
++
++ if (unlikely(rx_in == priv->regs->rx_out))
++ priv->vp_stats.rx_q_full_cnt++;
++
++ priv->regs->int_status &= ~UBI32_ETH_VP_INT_RX;
++ while (priv->rx_tail != priv->regs->rx_out) {
++ if (unlikely(count == quota)) {
++ /* There is still frame pending to be processed */
++ priv->vp_stats.rx_throttle++;
++ break;
++ }
++
++ pdata = priv->regs->rx_dma_ring[priv->rx_tail];
++ BUG_ON(pdata == NULL);
++
++ desc = (struct ubi32_eth_dma_desc *)pdata;
++ skb = container_of((void *)pdata, struct sk_buff, cb);
++ count++;
++ priv->regs->rx_dma_ring[priv->rx_tail] = NULL;
++ priv->rx_tail = ((priv->rx_tail + 1) & RX_DMA_RING_MASK);
++
++ /*
++ * Check only RX_OK bit here.
++ * The rest of status word is used as timestamp
++ */
++ if (unlikely(!(desc->status & UBI32_ETH_VP_RX_OK))) {
++ priv->stats.rx_errors++;
++ dev_kfree_skb_any(skb);
++ continue;
++ }
++
++ skb_put(skb, desc->data_len);
++ skb->dev = dev;
++ skb->protocol = eth_type_trans(skb, dev);
++ skb->ip_summed = CHECKSUM_NONE;
++ priv->stats.rx_bytes += skb->len;
++ priv->stats.rx_packets++;
++#ifndef CONFIG_UBICOM32_NAPI
++ netif_rx(skb);
++#else
++ netif_receive_skb(skb);
++#endif
++ }
++
++ /* fill in more descripor for VP*/
++ replenish_cnt = replenish_max -
++ ((RX_DMA_RING_SIZE + rx_in - priv->rx_tail) & RX_DMA_RING_MASK);
++ if (replenish_cnt > 0) {
++ for (i = 0; i < replenish_cnt; i++) {
++ skb = ubi32_alloc_skb(dev, RX_BUF_SIZE + extra_alloc);
++ if (!skb) {
++ priv->vp_stats.rx_alloc_err++;
++ break;
++ }
++ /* set up dma descriptor */
++ desc = (struct ubi32_eth_dma_desc *)skb->cb;
++ skb_reserve(skb, extra_reserve);
++ BUG_ON((((u32)skb->data + ETH_HLEN) & (CACHE_LINE_SIZE - 1)) != 0);
++ desc->data_pointer = skb->data;
++ desc->buffer_len = RX_BUF_SIZE + UBI32_ETH_TRASHED_MEMORY;
++ desc->data_len = 0;
++ desc->status = 0;
++ priv->regs->rx_dma_ring[rx_in] = desc;
++ rx_in = (rx_in + 1) & RX_DMA_RING_MASK;
++ }
++ wmb();
++ priv->regs->rx_in = rx_in;
++ ubicom32_set_interrupt(priv->vp_int_bit);
++ }
++
++ if (likely(count > 0)) {
++ dev->last_rx = jiffies;
++ }
++ return count;
++}
++
++#ifdef CONFIG_UBICOM32_NAPI
++static int ubi32_eth_napi_poll(struct napi_struct *napi, int budget)
++{
++ struct ubi32_eth_private *priv = container_of(napi, struct ubi32_eth_private, napi);
++ struct net_device *dev = priv->dev;
++ u32_t count;
++
++ if (priv->tx_tail != priv->regs->tx_out) {
++ ubi32_eth_tx_done(dev);
++ }
++
++ count = ubi32_eth_receive(dev, budget);
++
++ priv->regs->int_mask |= (UBI32_ETH_VP_INT_RX | UBI32_ETH_VP_INT_TX);
++ if (count < budget) {
++ netif_rx_complete(dev, napi);
++ if ((priv->rx_tail != priv->regs->rx_out) || (priv->tx_tail != priv->regs->tx_out)) {
++ if (netif_rx_reschedule(dev, napi)) {
++ priv->regs->int_mask = 0;
++ }
++ }
++ }
++ return count;
++}
++
++#else
++static void ubi32_eth_do_tasklet(unsigned long arg)
++{
++ struct net_device *dev = (struct net_device *)arg;
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++
++ if (priv->tx_tail != priv->regs->tx_out) {
++ ubi32_eth_tx_done(dev);
++ }
++
++ /* always call receive to process new RX frame as well as replenish RX buffers */
++ ubi32_eth_receive(dev, RX_BOUND);
++
++ priv->regs->int_mask |= (UBI32_ETH_VP_INT_RX | UBI32_ETH_VP_INT_TX);
++ if ((priv->rx_tail != priv->regs->rx_out) || (priv->tx_tail != priv->regs->tx_out)) {
++ priv->regs->int_mask = 0;
++ tasklet_schedule(&priv->tsk);
++ }
++}
++#endif
++
++#if defined(USE_POLLING)
++static struct timer_list eth_poll_timer;
++
++static void ubi32_eth_poll(unsigned long arg)
++{
++ struct net_device *dev;
++ struct ubi32_eth_private *priv;
++ int i;
++
++ for (i = 0; i < UBI32_ETH_NUM_OF_DEVICES; i++) {
++ dev = ubi32_eth_devices[i];
++ if (dev && (dev->flags & IFF_UP)) {
++ priv = netdev_priv(dev);
++#ifdef CONFIG_UBICOM32_NAPI
++ netif_rx_schedule(dev, &priv->napi);
++#else
++ tasklet_schedule(&priv->tsk);
++#endif
++ }
++ }
++
++ eth_poll_timer.expires = jiffies + 2;
++ add_timer(ð_poll_timer);
++}
++
++#else
++static irqreturn_t ubi32_eth_interrupt(int irq, void *dev_id)
++{
++ struct ubi32_eth_private *priv;
++
++ struct net_device *dev = (struct net_device *)dev_id;
++ BUG_ON(irq != dev->irq);
++
++ priv = netdev_priv(dev);
++ if (unlikely(!(priv->regs->int_status & priv->regs->int_mask))) {
++ return IRQ_NONE;
++ }
++
++ /*
++ * Disable port interrupt
++ */
++#ifdef CONFIG_UBICOM32_NAPI
++ if (netif_rx_schedule_prep(dev, &priv->napi)) {
++ priv->regs->int_mask = 0;
++ __netif_rx_schedule(dev, &priv->napi);
++ }
++#else
++ priv->regs->int_mask = 0;
++ tasklet_schedule(&priv->tsk);
++#endif
++ return IRQ_HANDLED;
++}
++#endif
++
++/*
++ * ubi32_eth_open
++ */
++static int ubi32_eth_open(struct net_device *dev)
++{
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++ int err;
++
++ printk(KERN_INFO "eth open %s\n",dev->name);
++#ifndef USE_POLLING
++ /* request_region() */
++ err = request_irq(dev->irq, ubi32_eth_interrupt, IRQF_DISABLED, dev->name, dev);
++ if (err) {
++ printk(KERN_WARNING "fail to request_irq %d\n",err);
++ return -ENODEV;
++ }
++#endif
++#ifdef CONFIG_UBICOM32_NAPI
++ napi_enable(&priv->napi);
++#else
++ tasklet_init(&priv->tsk, ubi32_eth_do_tasklet, (unsigned long)dev);
++#endif
++
++ /* call receive to supply RX buffers */
++ ubi32_eth_receive(dev, RX_DMA_MAX_QUEUE_SIZE);
++
++ /* check phy status and call netif_carrier_on */
++ ubi32_eth_vp_rxtx_enable(dev);
++ netif_start_queue(dev);
++ return 0;
++}
++
++static int ubi32_eth_close(struct net_device *dev)
++{
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++ volatile void *pdata;
++ struct sk_buff *skb;
++
++#ifndef USE_POLLING
++ free_irq(dev->irq, dev);
++#endif
++ netif_stop_queue(dev); /* can't transmit any more */
++#ifdef CONFIG_UBICOM32_NAPI
++ napi_disable(&priv->napi);
++#else
++ tasklet_kill(&priv->tsk);
++#endif
++ ubi32_eth_vp_rxtx_stop(dev);
++
++ /*
++ * RX clean up
++ */
++ while (priv->rx_tail != priv->regs->rx_in) {
++ pdata = priv->regs->rx_dma_ring[priv->rx_tail];
++ skb = container_of((void *)pdata, struct sk_buff, cb);
++ priv->regs->rx_dma_ring[priv->rx_tail] = NULL;
++ dev_kfree_skb_any(skb);
++ priv->rx_tail = ((priv->rx_tail + 1) & RX_DMA_RING_MASK);
++ }
++ priv->regs->rx_in = 0;
++ priv->regs->rx_out = priv->regs->rx_in;
++ priv->rx_tail = priv->regs->rx_in;
++
++ /*
++ * TX clean up
++ */
++ BUG_ON(priv->regs->tx_out != priv->regs->tx_in);
++ ubi32_eth_tx_done(dev);
++ BUG_ON(priv->tx_tail != priv->regs->tx_in);
++ priv->regs->tx_in = 0;
++ priv->regs->tx_out = priv->regs->tx_in;
++ priv->tx_tail = priv->regs->tx_in;
++
++ return 0;
++}
++
++/*
++ * ubi32_eth_set_config
++ */
++static int ubi32_eth_set_config(struct net_device *dev, struct ifmap *map)
++{
++ /* if must to down to config it */
++ printk(KERN_INFO "set_config %x\n", dev->flags);
++ if (dev->flags & IFF_UP)
++ return -EBUSY;
++
++ /* I/O and IRQ can not be changed */
++ if (map->base_addr != dev->base_addr) {
++ printk(KERN_WARNING "%s: Can't change I/O address\n", dev->name);
++ return -EOPNOTSUPP;
++ }
++
++#ifndef USE_POLLING
++ if (map->irq != dev->irq) {
++ printk(KERN_WARNING "%s: Can't change IRQ\n", dev->name);
++ return -EOPNOTSUPP;
++ }
++#endif
++
++ /* ignore other fields */
++ return 0;
++}
++
++static int ubi32_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
++{
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++ struct ubi32_eth_dma_desc *desc = NULL;
++ unsigned short space, tx_in;
++
++ tx_in = priv->regs->tx_in;
++
++ dev->trans_start = jiffies; /* save the timestamp */
++ space = TX_DMA_RING_MASK - ((TX_DMA_RING_SIZE + tx_in - priv->tx_tail) & TX_DMA_RING_MASK);
++
++ if (unlikely(space == 0)) {
++ atomic_inc((atomic_t *)&priv->stats.tx_errors);
++ if (!(priv->status & UBI32_ETH_PRIV_STATUS_TX_Q_FULL)) {
++ spin_lock(&priv->lock);
++ priv->status |= UBI32_ETH_PRIV_STATUS_TX_Q_FULL;
++ priv->vp_stats.tx_q_full_cnt++;
++ netif_stop_queue(dev);
++ spin_unlock(&priv->lock);
++ }
++
++ /* give both HW and this driver an extra trigger */
++ priv->regs->int_mask |= UBI32_ETH_VP_INT_TX;
++#ifndef USE_POLLING
++ ubicom32_set_interrupt(dev->irq);
++#endif
++ ubicom32_set_interrupt(priv->vp_int_bit);
++
++ return NETDEV_TX_BUSY;
++ }
++
++ /*still have room */
++ desc = (struct ubi32_eth_dma_desc *)skb->cb;
++ desc->data_pointer = skb->data;
++ desc->data_len = skb->len;
++ priv->regs->tx_dma_ring[tx_in] = desc;
++ tx_in = ((tx_in + 1) & TX_DMA_RING_MASK);
++ wmb();
++ priv->regs->tx_in = tx_in;
++ /* kick the HRT */
++ ubicom32_set_interrupt(priv->vp_int_bit);
++
++ return 0;
++}
++
++/*
++ * Deal with a transmit timeout.
++ */
++static void ubi32_eth_tx_timeout (struct net_device *dev)
++{
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++ atomic_inc((atomic_t *)&priv->stats.tx_errors);
++ priv->regs->int_mask |= UBI32_ETH_VP_INT_TX;
++#ifndef USE_POLLING
++ ubicom32_set_interrupt(dev->irq);
++#endif
++ ubicom32_set_interrupt(priv->vp_int_bit);
++}
++
++static int ubi32_eth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
++{
++ printk(KERN_INFO "ioctl %s, %d\n", dev->name, cmd);
++ return -EINVAL;
++}
++
++/*
++ * Return statistics to the caller
++ */
++static struct net_device_stats *ubi32_eth_get_stats(struct net_device *dev)
++{
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++ return &priv->stats;
++}
++
++
++static int ubi32_eth_change_mtu(struct net_device *dev, int new_mtu)
++{
++ struct ubi32_eth_private *priv = netdev_priv(dev);
++ unsigned long flags;
++
++ if ((new_mtu < 68) || (new_mtu > 1500))
++ return -EINVAL;
++
++ spin_lock_irqsave(&priv->lock, flags);
++ dev->mtu = new_mtu;
++ spin_unlock_irqrestore(&priv->lock, flags);
++ printk(KERN_INFO "set mtu to %d", new_mtu);
++ return 0;
++}
++
++/*
++ * ubi32_eth_cleanup: unload the module
++ */
++void ubi32_eth_cleanup(void)
++{
++ struct ubi32_eth_private *priv;
++ struct net_device *dev;
++ int i;
++
++ for (i = 0; i < UBI32_ETH_NUM_OF_DEVICES; i++) {
++ dev = ubi32_eth_devices[i];
++ if (dev) {
++ priv = netdev_priv(dev);
++ kfree(priv->regs->tx_dma_ring);
++ unregister_netdev(dev);
++ free_netdev(dev);
++ ubi32_eth_devices[i] = NULL;
++ }
++ }
++}
++
++int ubi32_eth_init_module(void)
++{
++ struct ethtionode *eth_node;
++ struct net_device *dev;
++ struct ubi32_eth_private *priv;
++ int i, err;
++
++ /*
++ * Device allocation.
++ */
++ err = 0;
++ for (i = 0; i < UBI32_ETH_NUM_OF_DEVICES; i++) {
++ /*
++ * See if the eth_vp is in the device tree.
++ */
++ eth_node = (struct ethtionode *)devtree_find_node(eth_if_name[i]);
++ if (!eth_node) {
++ printk(KERN_INFO "%s does not exist\n", eth_if_name[i]);
++ continue;
++ }
++
++ eth_node->tx_dma_ring = (struct ubi32_eth_dma_desc **)kmalloc(
++ sizeof(struct ubi32_eth_dma_desc *) *
++ (TX_DMA_RING_SIZE + RX_DMA_RING_SIZE), GFP_ATOMIC | __GFP_NOWARN | __GFP_NORETRY | GFP_DMA);
++
++ if (eth_node->tx_dma_ring == NULL) {
++ eth_node->tx_dma_ring = (struct ubi32_eth_dma_desc **)kmalloc(
++ sizeof(struct ubi32_eth_dma_desc *) *
++ (TX_DMA_RING_SIZE + RX_DMA_RING_SIZE), GFP_KERNEL);
++ printk(KERN_INFO "Failed to allocate from OCM\n");
++ }
++
++ if (!eth_node->tx_dma_ring) {
++ err = -ENOMEM;
++ break;
++ }
++ eth_node->rx_dma_ring = eth_node->tx_dma_ring + TX_DMA_RING_SIZE;
++ eth_node->tx_sz = TX_DMA_RING_SIZE - 1;
++ eth_node->rx_sz = RX_DMA_RING_SIZE - 1;
++
++ dev = alloc_etherdev(sizeof(struct ubi32_eth_private));
++ if (!dev) {
++ kfree(eth_node->tx_dma_ring);
++ err = -ENOMEM;
++ break;
++ }
++ priv = netdev_priv(dev);
++ priv->dev = dev;
++
++ /*
++ * FIX IT! get proper mac address
++ */
++ memcpy(dev->dev_addr, mac_addr[i], ETH_ALEN);
++
++ priv->regs = eth_node;
++ priv->regs->command = 0;
++ priv->regs->int_mask = 0;
++ priv->regs->int_status = 0;
++ priv->regs->tx_out = 0;
++ priv->regs->rx_out = 0;
++ priv->regs->tx_in = 0;
++ priv->regs->rx_in = 0;
++ priv->rx_tail = 0;
++ priv->tx_tail = 0;
++
++ priv->vp_int_bit = eth_node->dn.sendirq;
++ dev->irq = eth_node->dn.recvirq;
++
++ spin_lock_init(&priv->lock);
++
++ dev->open = ubi32_eth_open;
++ dev->stop = ubi32_eth_close;
++ dev->hard_start_xmit = ubi32_eth_start_xmit;
++ dev->tx_timeout = ubi32_eth_tx_timeout;
++ dev->watchdog_timeo = UBI32_ETH_VP_TX_TIMEOUT;
++
++ dev->set_config = ubi32_eth_set_config;
++ dev->do_ioctl = ubi32_eth_ioctl;
++ dev->get_stats = ubi32_eth_get_stats;
++ dev->change_mtu = ubi32_eth_change_mtu;
++#ifdef CONFIG_UBICOM32_NAPI
++ netif_napi_add(dev, &priv->napi, ubi32_eth_napi_poll, UBI32_ETH_NAPI_WEIGHT);
++#endif
++ err = register_netdev(dev);
++ if (err) {
++ printk(KERN_WARNING "Failed to register netdev %s\n", eth_if_name[i]);
++ //release_region();
++ free_netdev(dev);
++ kfree(eth_node->tx_dma_ring);
++ break;
++ }
++
++ ubi32_eth_devices[i] = dev;
++ printk(KERN_INFO "%s vp_base:0x%p, tio_int:%d irq:%d\n",
++ dev->name, priv->regs, eth_node->dn.sendirq, dev->irq);
++ }
++
++ if (err) {
++ ubi32_eth_cleanup();
++ return err;
++ }
++
++ if (!ubi32_eth_devices[0] && !ubi32_eth_devices[1] && !ubi32_eth_devices[2]) {
++ return -ENODEV;
++ }
++
++#if defined(USE_POLLING)
++ init_timer(ð_poll_timer);
++ eth_poll_timer.function = ubi32_eth_poll;
++ eth_poll_timer.data = (unsigned long)0;
++ eth_poll_timer.expires = jiffies + 2;
++ add_timer(ð_poll_timer);
++#endif
++
++ return 0;
++}
++
++module_init(ubi32_eth_init_module);
++module_exit(ubi32_eth_cleanup);
++
++MODULE_AUTHOR("Kan Yan, Greg Ren");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/drivers/net/ubi32-eth.h
+@@ -0,0 +1,133 @@
++/*
++ * drivers/net/ubi32-eth.h
++ * Ubicom32 ethernet TIO interface driver definitions.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#ifndef _UBI32_ETH_H
++#define _UBI32_ETH_H
++
++#include <asm/devtree.h>
++
++#define UBI32_ETH_NUM_OF_DEVICES 3
++
++/*
++ * Number of bytes trashed beyond the packet data.
++ */
++#define UBI32_ETH_TRASHED_MEMORY (CACHE_LINE_SIZE + ETH_HLEN - 1)
++
++/*
++ * Linux already reserves NET_SKB_PAD bytes of headroom in each sk_buff.
++ * We want to be able to reserve arbitrarily more space to align Ethernet
++ * and IP header to cache line.
++ * Note that the TIO expects a CACHE_LINE_SIZE - ETH_HLEN aligned Ethernet
++ * header, so the reserved space must be NET_SKB_PAD + NET_IP_ALIGN.
++ * (NET_SKB_PAD is 16, NET_IP_ALIGN is 2, CACHE_LINE_SIZE is 32).
++ * You can add more space by making UBI32_ETH_iRESERVE_EXTRA != 0.
++ */
++#define UBI32_ETH_RESERVE_SPACE (CACHE_LINE_SIZE - ETH_HLEN)
++#define UBI32_ETH_RESERVE_EXTRA (1 * CACHE_LINE_SIZE)
++
++struct ubi32_eth_dma_desc {
++ volatile void *data_pointer; /* pointer to the buffer */
++ volatile u16 buffer_len; /* the buffer size */
++ volatile u16 data_len; /* actual frame length */
++ volatile u32 status; /* bit0: status to be update by VP; bit[31:1] time stamp */
++};
++
++#define TX_DMA_RING_SIZE (1<<8)
++#define TX_DMA_RING_MASK (TX_DMA_RING_SIZE - 1)
++#define RX_DMA_RING_SIZE (1<<8)
++#define RX_DMA_RING_MASK (RX_DMA_RING_SIZE - 1)
++
++#define RX_DMA_MAX_QUEUE_SIZE (RX_DMA_RING_SIZE - 1) /* no more than (RX_DMA_RING_SIZE - 1) */
++#define RX_MAX_PKT_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN)
++#define RX_MIN_PKT_SIZE ETH_ZLEN
++#define RX_BUF_SIZE (RX_MAX_PKT_SIZE + VLAN_HLEN) /* allow double VLAN tag */
++
++#define UBI32_ETH_VP_TX_TIMEOUT (10*HZ)
++
++struct ubi32_eth_vp_stats {
++ u32 rx_alloc_err;
++ u32 tx_q_full_cnt;
++ u32 rx_q_full_cnt;
++ u32 rx_throttle;
++};
++
++struct ubi32_eth_private {
++ struct net_device *dev;
++ struct net_device_stats stats;
++ struct ubi32_eth_vp_stats vp_stats;
++ int status;
++ spinlock_t lock;
++#ifdef CONFIG_UBICOM32_NAPI
++ struct napi_struct napi;
++#else
++ struct tasklet_struct tsk;
++#endif
++ struct ethtionode *regs;
++ u16 rx_tail;
++ u16 tx_tail;
++ u32 vp_int_bit;
++};
++
++struct ethtionode {
++ struct devtree_node dn;
++ volatile u16 command;
++ volatile u16 status;
++ volatile u16 int_mask; /* interrupt mask */
++ volatile u16 int_status; /* interrupt mask */
++ volatile u16 tx_in; /* owned by driver */
++ volatile u16 tx_out; /* owned by vp */
++ volatile u16 rx_in; /* owned by driver */
++ volatile u16 rx_out; /* owned by vp */
++ u16 tx_sz; /* owned by driver */
++ u16 rx_sz; /* owned by driver */
++ struct ubi32_eth_dma_desc **tx_dma_ring;
++ struct ubi32_eth_dma_desc **rx_dma_ring;
++};
++
++#define UBI32_ETH_VP_STATUS_LINK (1<<0)
++#define UBI32_ETH_VP_STATUS_SPEED (0x2<<1)
++#define UBI32_ETH_VP_STATUS_DUPLEX (0x1<<3)
++#define UBI32_ETH_VP_STATUS_FLOW_CTRL (0x1<<4)
++
++#define UBI32_ETH_VP_STATUS_RX_STATE (0x1<<5)
++#define UBI32_ETH_VP_STATUS_TX_STATE (0x1<<6)
++
++#define UBI32_ETH_PRIV_STATUS_TX_Q_FULL (1<<0)
++
++#define UBI32_ETH_VP_INT_RX (1<<0)
++#define UBI32_ETH_VP_INT_TX (1<<1)
++
++#define UBI32_ETH_VP_CMD_RX_ENABLE (1<<0)
++#define UBI32_ETH_VP_CMD_TX_ENABLE (1<<1)
++
++#define UBI32_ETH_VP_RX_OK (1<<0)
++#define UBI32_ETH_VP_TX_OK (1<<1)
++
++#define TX_BOUND TX_DMA_RING_SIZE
++#define RX_BOUND 64
++#define UBI32_ETH_NAPI_WEIGHT 64 /* for GigE */
++#endif
+--- a/drivers/net/usb/asix.c
++++ b/drivers/net/usb/asix.c
+@@ -318,14 +318,33 @@ static int asix_rx_fixup(struct usbnet *
+ /* get the packet length */
+ size = (u16) (header & 0x0000ffff);
+
+- if ((skb->len) - ((size + 1) & 0xfffe) == 0)
++ if ((skb->len) - ((size + 1) & 0xfffe) == 0) {
++#ifndef HAVE_EFFICIENT_UNALIGNED_ACCESS
++ if (((u32)packet & 0x02) == 0) {
++ memmove(packet - 2, packet, size);
++ skb->data -= 2;
++ skb->tail -= 2;
++ }
++#endif
+ return 2;
++ }
++
+ if (size > ETH_FRAME_LEN) {
+ deverr(dev,"asix_rx_fixup() Bad RX Length %d", size);
+ return 0;
+ }
+ ax_skb = skb_clone(skb, GFP_ATOMIC);
+ if (ax_skb) {
++#ifndef HAVE_EFFICIENT_UNALIGNED_ACCESS
++ if (((u32)packet & 0x02) == 0) {
++ memmove(packet - 2, packet, size);
++ ax_skb->data = packet - 2;
++ } else {
++ ax_skb->data = packet;
++ }
++#else
++ ax_skb->data = packet;
++#endif
+ ax_skb->len = size;
+ ax_skb->data = packet;
+ skb_set_tail_pointer(ax_skb, size);
+@@ -1102,13 +1121,19 @@ static int ax88178_link_reset(struct usb
+ mode = AX88178_MEDIUM_DEFAULT;
+
+ if (ecmd.speed == SPEED_1000)
++#ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS
+ mode |= AX_MEDIUM_GM;
++#else
++ mode |= AX_MEDIUM_GM | AX_MEDIUM_ENCK;
++#endif
+ else if (ecmd.speed == SPEED_100)
+ mode |= AX_MEDIUM_PS;
+ else
+ mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM);
+
++#ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS
+ mode |= AX_MEDIUM_ENCK;
++#endif
+
+ if (ecmd.duplex == DUPLEX_FULL)
+ mode |= AX_MEDIUM_FD;
+--- a/drivers/oprofile/cpu_buffer.c
++++ b/drivers/oprofile/cpu_buffer.c
+@@ -240,10 +240,11 @@ static void oprofile_end_trace(struct op
+ cpu_buf->tracing = 0;
+ }
+
+-void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
+- unsigned long event, int is_kernel)
++
++void oprofile_add_ext_sample_cpu(unsigned long pc, struct pt_regs * const regs,
++ unsigned long event, int is_kernel, int cpu)
+ {
+- struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
++ struct oprofile_cpu_buffer *cpu_buf = &per_cpu(cpu_buffer, cpu);
+
+ if (!backtrace_depth) {
+ log_sample(cpu_buf, pc, is_kernel, event);
+@@ -260,6 +261,13 @@ void oprofile_add_ext_sample(unsigned lo
+ oprofile_end_trace(cpu_buf);
+ }
+
++void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
++ unsigned long event, int is_kernel)
++{
++ oprofile_add_ext_sample_cpu(pc, regs, event,
++ is_kernel, smp_processor_id());
++}
++
+ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
+ {
+ int is_kernel = !user_mode(regs);
+--- a/drivers/pci/Makefile
++++ b/drivers/pci/Makefile
+@@ -42,8 +42,8 @@ obj-$(CONFIG_PPC) += setup-bus.o
+ obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o
+ obj-$(CONFIG_X86_VISWS) += setup-irq.o
+ obj-$(CONFIG_MN10300) += setup-bus.o
++obj-$(CONFIG_UBICOM32) += setup-bus.o setup-irq.o
+
+-#
+ # ACPI Related PCI FW Functions
+ #
+ obj-$(CONFIG_ACPI) += pci-acpi.o
+--- a/drivers/serial/Kconfig
++++ b/drivers/serial/Kconfig
+@@ -827,6 +827,57 @@ config SERIAL_UARTLITE_CONSOLE
+ console (the system console is the device which receives all kernel
+ messages and warnings and which allows logins in single user mode).
+
++config SERIAL_UBI32_UARTTIO
++ tristate "Ubicom UARTTIO support"
++ depends on UBICOM32=y
++ select SERIAL_CORE
++ default y
++ help
++ Add support for the Ubicom virtual peripherial serial interface.
++
++config SERIAL_UBI32_UARTTIO_NR_UARTS
++ int "Maximum number of UARTTIO virtual serial ports"
++ depends on SERIAL_UBI32_UARTTIO
++ default "4"
++ help
++ Set this to the maximum number of serial ports you want the driver to support.
++
++config SERIAL_UBI32_UARTTIO_CONSOLE
++ tristate "Ubicom UARTTIO console support"
++ depends on SERIAL_UBI32_UARTTIO=y
++ select SERIAL_CORE_CONSOLE
++ default y
++ help
++ Add support for console on the Ubicom virtual peripherial serial interface.
++
++config SERIAL_UBI32_SERDES
++ bool "Ubicom serial port support"
++ depends on UBICOM32=y
++ select SERIAL_CORE
++ default y
++ help
++ Add support for the Ubicom serial interface.
++
++config SERIAL_UBI32_SERDES_CONSOLE
++ bool "Ubicom serial console support"
++ depends on SERIAL_UBI32_SERDES=y
++ select SERIAL_CORE_CONSOLE
++ default y
++
++config SERIAL_UBI32_MAILBOX
++ bool "Ubicom mailbox support"
++ depends on UBICOM32=y
++ select SERIAL_CORE
++ default n
++ help
++ Add support for the Ubicom mailbox interface.
++
++config SERIAL_UBI32_MAILBOX_CONSOLE
++ bool "Ubicom mailbox console support"
++ depends on SERIAL_UBI32_MAILBOX=y
++ select SERIAL_CORE_CONSOLE
++ default y
++
+ config SERIAL_SUNCORE
+ bool
+ depends on SPARC
+--- a/drivers/serial/Makefile
++++ b/drivers/serial/Makefile
+@@ -73,3 +73,6 @@ obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_s
+ obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
+ obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o
+ obj-$(CONFIG_SERIAL_QE) += ucc_uart.o
++obj-$(CONFIG_SERIAL_UBI32_SERDES) += ubi32_serdes.o
++obj-$(CONFIG_SERIAL_UBI32_UARTTIO) += ubi32_uarttio.o
++obj-$(CONFIG_SERIAL_UBI32_MAILBOX) += ubi32_mailbox.o
+--- /dev/null
++++ b/drivers/serial/ubi32_mailbox.c
+@@ -0,0 +1,928 @@
++/*
++ * drivers/serial/ubi32_mailbox.c
++ * Ubicom32 On-Chip Mailbox Driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/ioport.h>
++#include <linux/init.h>
++#include <linux/console.h>
++#include <linux/sysrq.h>
++#include <linux/platform_device.h>
++#include <linux/tty.h>
++#include <linux/tty_flip.h>
++#include <linux/serial_core.h>
++
++#include <asm/ip5000.h>
++
++#define SERIAL_UBICOM_BAUDRATE 115200
++#define SERIAL_UBICOM_DATA_BIT 8 /* Fixed parameter - do not change */
++#define SERIAL_UBICOM_PAR_BIT 0 /* Fixed parameter - do not change */
++#define SERIAL_UBICOM_STOP_BIT 1 /* Fixed parameter - do not change */
++
++/* UART name and device definitions */
++#define UBI32_MAILBOX_NAME "ttyUM" // XXX
++#define UBI32_MAILBOX_MAJOR 207 // XXX
++#define UBI32_MAILBOX_MINOR 64
++
++#define PORT_UBI32_MAILBOX 1235
++#define NR_PORTS 1
++
++#define get_sclk() 0
++
++struct ubi32_mailbox_port {
++ struct uart_port port;
++ /*
++ * NOTE (rkeller):
++ * the uart port is wrapped in another structure in case we need to hold more state than
++ * what we can hold in the uart_port.
++ * Not sure if we need this, I took over the concept from the blackfin driver.
++ */
++} ubi32_mailbox_ports[NR_PORTS];
++
++struct ubi32_mailbox_resource {
++ int uart_base_addr;
++ int uart_irq;
++} ubi32_mailbox_resource[NR_PORTS] = {
++ /*
++ * uart_base_addr has to be non-NULL because it is put in the uart_port membase.
++ * If membase if null the kernel skips the configuration and our port_type never gets set.
++ */
++ {ISD_MAILBOX_BASE, ISD_MAILBOX_INT}
++};
++
++static volatile struct ubicom32_isd_mailbox {
++ volatile u32_t in;
++ volatile u32_t out;
++ volatile u32_t status;
++} *ubi32_mailbox = (struct ubicom32_isd_mailbox *)ISD_MAILBOX_BASE;
++
++static void ubi32_mailbox_tx_chars(struct ubi32_mailbox_port *uart);
++
++static void ubi32_mailbox_mctrl_check(struct ubi32_mailbox_port *uart);
++
++#define TRUE 1
++#define FALSE 0
++
++static int mailbox_console_flg = TRUE;
++static int num_timeouts = 0;
++
++/*
++ * dummy functions and defined to be able to compile the Blackfin code
++ */
++#define UART_GET_LSR(port) (1)
++#define UART_PUT_LSR(port, bits)
++#define UART_CLEAR_LSR(port) (1)
++#define TEMT 1
++#define TFI 1
++#define BI 1
++#define PE 1
++#define OE 1
++#define FE 1
++#define THRE 1
++#define DR 1
++#define UART_GET_LCR(port) (1)
++#define UART_PUT_LCR(port, bits)
++#define SB 1
++#define STB 1
++#define PEN 1
++#define EPS 1
++#define STP 1
++#define WLS(n) 0
++#define UART_GET_IER(port) (1)
++#define UART_SET_IER(port, bits)
++#define UART_CLEAR_IER(port, bits)
++#define ETBEI 0
++#define ERBFI 0
++#define UART_GET_CHAR(port) ubi32_mailbox_get_char()
++#define UART_PUT_CHAR(port, ch) ubi32_mailbox_put_char(ch)
++#define SSYNC()
++#define UART_GET_DLL(port) 0
++#define UART_PUT_DLL(port, ch)
++#define UART_GET_DLH(port) 0
++#define UART_PUT_DLH(port, ch)
++#define UART_GET_GCTL(port) (0)
++#define UART_PUT_GCTL(port, ch)
++#define UCEN 1
++
++/*
++ * ubi32_mailbox_get_char_avail()
++ */
++static int ubi32_mailbox_get_char_avail(void)
++{
++ return !(ubi32_mailbox->status & ISD_MAILBOX_STATUS_IN_EMPTY);
++}
++
++/*
++ * ubi32_mailbox_get_char()
++ */
++static u32_t ubi32_mailbox_get_char(void)
++{
++ if (mailbox_console_flg == TRUE) {
++ /*
++ * Mailbox console is connected.
++ */
++ while (ubi32_mailbox->status & ISD_MAILBOX_STATUS_IN_EMPTY);
++ return ubi32_mailbox->in & 0xff;
++ }
++
++ /*
++ * Mailbox console was not connected.
++ */
++ if (ubi32_mailbox->status & ISD_MAILBOX_STATUS_IN_EMPTY) {
++ return 0xff;
++ }
++
++ /*
++ * Mailbox console is connecting.
++ */
++ mailbox_console_flg = TRUE;
++ num_timeouts = 0;
++ return ubi32_mailbox->in & 0xff;
++}
++
++#define MAILBOX_MAX_ATTEMPTS 1000000
++#define MAILBOX_MAX_TIMEOUTS 5
++/*
++ * ubi32_mailbox_put_char()
++ */
++static void ubi32_mailbox_put_char(u32_t v)
++{
++ /*
++ * Wait to be able to output.
++ */
++ u32_t num_attempts = 0;
++
++ if(mailbox_console_flg == TRUE) {
++ while(num_attempts++ < MAILBOX_MAX_ATTEMPTS) {
++ if(ubi32_mailbox->status & ISD_MAILBOX_STATUS_OUT_EMPTY) {
++ break;
++ }
++ }
++
++ /*
++ * If timed out more than 5 times on send, mailbox console is disconnected now.
++ */
++ if (num_attempts > MAILBOX_MAX_ATTEMPTS) {
++ if (num_timeouts++ > MAILBOX_MAX_TIMEOUTS) {
++ mailbox_console_flg = FALSE;
++ }
++ }
++ }
++
++ asm volatile(
++ "pipe_flush 0 \n\t"
++ "pipe_flush 0 \n\t"
++ "pipe_flush 0 \n\t"
++ "pipe_flush 0 \n\t"
++ "pipe_flush 0 \n\t"
++ "pipe_flush 0 \n\t"
++ "pipe_flush 0 \n\t"
++ );
++
++ ubi32_mailbox->out = v & 0xff;
++}
++
++static void ubi32_mailbox_hw_init(struct ubi32_mailbox_port *uart)
++{
++// NOTE: It does not do any good to do these here because we are running on the linux hardware thread,
++// and these have to be called on the ldsr thread.
++// ubicom32_clear_interrupt(ISD_MAILBOX_INT);
++// ubicom32_enable_interrupt(ISD_MAILBOX_INT);
++}
++
++/*
++ * interrupts are disabled on entry
++ */
++static void ubi32_mailbox_stop_tx(struct uart_port *port)
++{
++// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++// struct circ_buf *xmit = &uart->port.info->xmit;
++
++ while (!(UART_GET_LSR(uart) & TEMT))
++ cpu_relax();
++
++ /* Clear TFI bit */
++ UART_PUT_LSR(uart, TFI);
++ UART_CLEAR_IER(uart, ETBEI);
++}
++
++/*
++ * port is locked and interrupts are disabled
++ */
++static void ubi32_mailbox_start_tx(struct uart_port *port)
++{
++ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++ UART_SET_IER(uart, ETBEI);
++
++ ubi32_mailbox_tx_chars(uart);
++}
++
++/*
++ * Interrupts are enabled
++ */
++static void ubi32_mailbox_stop_rx(struct uart_port *port)
++{
++// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++ UART_CLEAR_IER(uart, ERBFI);
++}
++
++/*
++ * Set the modem control timer to fire immediately.
++ */
++static void ubi32_mailbox_enable_ms(struct uart_port *port)
++{
++}
++
++static void ubi32_mailbox_rx_chars(struct ubi32_mailbox_port *uart)
++{
++ struct uart_info *info = uart->port.info;
++ struct tty_struct *tty = info->port.tty;
++ unsigned int status, ch, flg;
++
++ status = 0; // XXX? UART_GET_LSR(uart);
++ UART_CLEAR_LSR(uart);
++
++ ch = UART_GET_CHAR(uart);
++
++ if(ch == 0xff)
++ return;
++
++ uart->port.icount.rx++;
++
++ if (status & BI) {
++ uart->port.icount.brk++;
++ if (uart_handle_break(&uart->port))
++ goto ignore_char;
++ status &= ~(PE | FE);
++ }
++ if (status & PE)
++ uart->port.icount.parity++;
++ if (status & OE)
++ uart->port.icount.overrun++;
++ if (status & FE)
++ uart->port.icount.frame++;
++
++ status &= uart->port.read_status_mask;
++
++ if (status & BI)
++ flg = TTY_BREAK;
++ else if (status & PE)
++ flg = TTY_PARITY;
++ else if (status & FE)
++ flg = TTY_FRAME;
++ else
++ flg = TTY_NORMAL;
++
++ if (uart_handle_sysrq_char(&uart->port, ch))
++ goto ignore_char;
++
++ uart_insert_char(&uart->port, status, OE, ch, flg);
++
++ ignore_char:
++ tty_flip_buffer_push(tty);
++}
++
++static void ubi32_mailbox_tx_chars(struct ubi32_mailbox_port *uart)
++{
++ struct circ_buf *xmit = &uart->port.info->xmit;
++
++ if (uart->port.x_char) {
++ UART_PUT_CHAR(uart, uart->port.x_char);
++ uart->port.icount.tx++;
++ uart->port.x_char = 0;
++ }
++ /*
++ * Check the modem control lines before
++ * transmitting anything.
++ */
++ ubi32_mailbox_mctrl_check(uart);
++
++ if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) {
++ ubi32_mailbox_stop_tx(&uart->port);
++ return;
++ }
++
++ while ((UART_GET_LSR(uart) & THRE) && xmit->tail != xmit->head) {
++ UART_PUT_CHAR(uart, xmit->buf[xmit->tail]);
++ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
++ uart->port.icount.tx++;
++ SSYNC();
++ }
++
++ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
++ uart_write_wakeup(&uart->port);
++
++ if (uart_circ_empty(xmit))
++ ubi32_mailbox_stop_tx(&uart->port);
++}
++
++static irqreturn_t ubi32_mailbox_isr(int irq, void *dev_id)
++{
++ struct ubi32_mailbox_port *uart = dev_id;
++
++ spin_lock(&uart->port.lock);
++
++ //XXX?while (UART_GET_LSR(uart) & DR)
++
++ /*
++ * RX process
++ */
++ while (ubi32_mailbox_get_char_avail()) {
++ ubi32_mailbox_rx_chars(uart);
++ }
++
++#if 0
++ /*
++ * TX process
++ */
++ if (this_uart.tx_in == this_uart.tx_out) {
++ UBICOM32_IO_PORT(SERIAL_UBICOM_PORT)->int_mask &= ~IO_PORTX_INT_SERDES_TXBE;
++ } else if (UBICOM32_IO_PORT(SERIAL_UBICOM_PORT)->int_status & IO_PORTX_INT_SERDES_TXBE) {
++ uart_ubicom32_send(this_uart.tx_buf[this_uart.tx_out & (SERIAL_UBICOM_BUF_SIZE - 1)]);
++ this_uart.tx_out++;
++ UBICOM32_IO_PORT(SERIAL_UBICOM_PORT)->int_mask |= IO_PORTX_INT_SERDES_TXBE;
++ }
++#endif
++
++ spin_unlock(&uart->port.lock);
++
++ return IRQ_HANDLED;
++}
++#if 0
++static irqreturn_t ubi32_mailbox_tx_int(int irq, void *dev_id)
++{
++ struct ubi32_mailbox_port *uart = dev_id;
++
++ spin_lock(&uart->port.lock);
++ if (UART_GET_LSR(uart) & THRE)
++ ubi32_mailbox_tx_chars(uart);
++ spin_unlock(&uart->port.lock);
++
++ return IRQ_HANDLED;
++}
++#endif
++
++/*
++ * Return TIOCSER_TEMT when transmitter is not busy.
++ */
++static unsigned int ubi32_mailbox_tx_empty(struct uart_port *port)
++{
++// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++ unsigned short lsr;
++
++ lsr = UART_GET_LSR(uart);
++ if (lsr & TEMT)
++ return TIOCSER_TEMT;
++ else
++ return 0;
++}
++
++static unsigned int ubi32_mailbox_get_mctrl(struct uart_port *port)
++{
++ return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
++}
++
++static void ubi32_mailbox_set_mctrl(struct uart_port *port, unsigned int mctrl)
++{
++}
++
++/*
++ * Handle any change of modem status signal since we were last called.
++ */
++static void ubi32_mailbox_mctrl_check(struct ubi32_mailbox_port *uart)
++{
++}
++
++/*
++ * Interrupts are always disabled.
++ */
++static void ubi32_mailbox_break_ctl(struct uart_port *port, int break_state)
++{
++// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++ u16 lcr = UART_GET_LCR(uart);
++ if (break_state)
++ lcr |= SB;
++ else
++ lcr &= ~SB;
++ UART_PUT_LCR(uart, lcr);
++ SSYNC();
++}
++
++static int ubi32_mailbox_startup(struct uart_port *port)
++{
++ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++ if (request_irq(uart->port.irq, ubi32_mailbox_isr, IRQF_DISABLED,
++ "UBI32_MAILBOX", uart)) {
++ printk(KERN_NOTICE "Unable to attach Ubicom32 SERDES interrupt\n");
++ return -EBUSY;
++ }
++
++ UART_SET_IER(uart, ERBFI);
++ return 0;
++}
++
++static void ubi32_mailbox_shutdown(struct uart_port *port)
++{
++ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++ free_irq(uart->port.irq, uart);
++}
++
++static void
++ubi32_mailbox_set_termios(struct uart_port *port, struct ktermios *termios,
++ struct ktermios *old)
++{
++ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++ unsigned long flags;
++ unsigned int baud, quot;
++ unsigned short val, ier, lsr, lcr = 0;
++
++ switch (termios->c_cflag & CSIZE) {
++ case CS8:
++ lcr = WLS(8);
++ break;
++ case CS7:
++ lcr = WLS(7);
++ break;
++ case CS6:
++ lcr = WLS(6);
++ break;
++ case CS5:
++ lcr = WLS(5);
++ break;
++ default:
++ printk(KERN_ERR "%s: word lengh not supported\n",
++ __FUNCTION__);
++ }
++
++ if (termios->c_cflag & CSTOPB)
++ lcr |= STB;
++ if (termios->c_cflag & PARENB)
++ lcr |= PEN;
++ if (!(termios->c_cflag & PARODD))
++ lcr |= EPS;
++ if (termios->c_cflag & CMSPAR)
++ lcr |= STP;
++
++ port->read_status_mask = OE;
++ if (termios->c_iflag & INPCK)
++ port->read_status_mask |= (FE | PE);
++ if (termios->c_iflag & (BRKINT | PARMRK))
++ port->read_status_mask |= BI;
++
++ /*
++ * Characters to ignore
++ */
++ port->ignore_status_mask = 0;
++ if (termios->c_iflag & IGNPAR)
++ port->ignore_status_mask |= FE | PE;
++ if (termios->c_iflag & IGNBRK) {
++ port->ignore_status_mask |= BI;
++ /*
++ * If we're ignoring parity and break indicators,
++ * ignore overruns too (for real raw support).
++ */
++ if (termios->c_iflag & IGNPAR)
++ port->ignore_status_mask |= OE;
++ }
++
++ baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
++ quot = uart_get_divisor(port, baud);
++ spin_lock_irqsave(&uart->port.lock, flags);
++
++ do {
++ lsr = UART_GET_LSR(uart);
++ } while (!(lsr & TEMT));
++
++ /* Disable UART */
++ ier = UART_GET_IER(uart);
++ UART_CLEAR_IER(uart, 0xF);
++
++ UART_PUT_DLL(uart, quot & 0xFF);
++ SSYNC();
++ UART_PUT_DLH(uart, (quot >> 8) & 0xFF);
++ SSYNC();
++
++ UART_PUT_LCR(uart, lcr);
++
++ /* Enable UART */
++ UART_SET_IER(uart, ier);
++
++ val = UART_GET_GCTL(uart);
++ val |= UCEN;
++ UART_PUT_GCTL(uart, val);
++
++ spin_unlock_irqrestore(&uart->port.lock, flags);
++}
++
++static const char *ubi32_mailbox_type(struct uart_port *port)
++{
++ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++ return uart->port.type == PORT_UBI32_MAILBOX ? "UBI32_MAILBOX" : NULL;
++}
++
++/*
++ * Release the memory region(s) being used by 'port'.
++ */
++static void ubi32_mailbox_release_port(struct uart_port *port)
++{
++}
++
++/*
++ * Request the memory region(s) being used by 'port'.
++ */
++static int ubi32_mailbox_request_port(struct uart_port *port)
++{
++ return 0;
++}
++
++/*
++ * Configure/autoconfigure the port.
++ */
++static void ubi32_mailbox_config_port(struct uart_port *port, int flags)
++{
++ struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++
++ if (flags & UART_CONFIG_TYPE && ubi32_mailbox_request_port(&uart->port) == 0)
++ uart->port.type = PORT_UBI32_MAILBOX;
++}
++
++/*
++ * Verify the new serial_struct (for TIOCSSERIAL).
++ * The only change we allow are to the flags and type, and
++ * even then only between PORT_UBI32_MAILBOX and PORT_UNKNOWN
++ */
++static int
++ubi32_mailbox_verify_port(struct uart_port *port, struct serial_struct *ser)
++{
++ return 0;
++}
++
++static struct uart_ops ubi32_mailbox_pops = {
++ .tx_empty = ubi32_mailbox_tx_empty,
++ .set_mctrl = ubi32_mailbox_set_mctrl,
++ .get_mctrl = ubi32_mailbox_get_mctrl,
++ .stop_tx = ubi32_mailbox_stop_tx,
++ .start_tx = ubi32_mailbox_start_tx,
++ .stop_rx = ubi32_mailbox_stop_rx,
++ .enable_ms = ubi32_mailbox_enable_ms,
++ .break_ctl = ubi32_mailbox_break_ctl,
++ .startup = ubi32_mailbox_startup,
++ .shutdown = ubi32_mailbox_shutdown,
++ .set_termios = ubi32_mailbox_set_termios,
++ .type = ubi32_mailbox_type,
++ .release_port = ubi32_mailbox_release_port,
++ .request_port = ubi32_mailbox_request_port,
++ .config_port = ubi32_mailbox_config_port,
++ .verify_port = ubi32_mailbox_verify_port,
++};
++
++static void __init ubi32_mailbox_init_ports(void)
++{
++ static int first = 1;
++ int i;
++
++ if (!first)
++ return;
++ first = 0;
++
++ for (i = 0; i < NR_PORTS; i++) {
++ ubi32_mailbox_ports[i].port.uartclk = get_sclk();
++ ubi32_mailbox_ports[i].port.ops = &ubi32_mailbox_pops;
++ ubi32_mailbox_ports[i].port.line = i;
++ ubi32_mailbox_ports[i].port.iotype = UPIO_MEM;
++ ubi32_mailbox_ports[i].port.membase =
++ (void __iomem *)ubi32_mailbox_resource[i].uart_base_addr;
++ ubi32_mailbox_ports[i].port.mapbase =
++ ubi32_mailbox_resource[i].uart_base_addr;
++ ubi32_mailbox_ports[i].port.irq =
++ ubi32_mailbox_resource[i].uart_irq;
++ ubi32_mailbox_ports[i].port.flags = UPF_BOOT_AUTOCONF;
++ spin_lock_init(&ubi32_mailbox_ports[i].port.lock);
++
++ ubi32_mailbox_hw_init(&ubi32_mailbox_ports[i]);
++ }
++
++}
++
++#ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE
++/*
++ * If the port was already initialised (eg, by a boot loader),
++ * try to determine the current setup.
++ */
++static void __init
++ubi32_mailbox_console_get_options(struct ubi32_mailbox_port *uart, int *baud,
++ int *parity, int *bits)
++{
++ unsigned short status;
++
++ status = UART_GET_IER(uart) & (ERBFI | ETBEI);
++ if (status == (ERBFI | ETBEI)) {
++ /* ok, the port was enabled */
++ unsigned short lcr;
++ unsigned short dlh, dll;
++
++ lcr = UART_GET_LCR(uart);
++
++ *parity = 'n';
++ if (lcr & PEN) {
++ if (lcr & EPS)
++ *parity = 'e';
++ else
++ *parity = 'o';
++ }
++ switch (lcr & 0x03) {
++ case 0: *bits = 5; break;
++ case 1: *bits = 6; break;
++ case 2: *bits = 7; break;
++ case 3: *bits = 8; break;
++ }
++
++ dll = UART_GET_DLL(uart);
++ dlh = UART_GET_DLH(uart);
++
++ *baud = get_sclk() / (16*(dll | dlh << 8));
++ }
++ pr_debug("%s:baud = %d, parity = %c, bits= %d\n", __FUNCTION__, *baud, *parity, *bits);
++}
++#endif
++
++#if defined(CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
++static struct uart_driver ubi32_mailbox_reg;
++
++static int __init
++ubi32_mailbox_console_setup(struct console *co, char *options)
++{
++ struct ubi32_mailbox_port *uart;
++# ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE
++ int baud = SERIAL_UBICOM_BAUDRATE;
++ int bits = 8;
++ int parity = 'n';
++ int flow = 'n';
++# endif
++
++ /*
++ * Check whether an invalid uart number has been specified, and
++ * if so, search for the first available port that does have
++ * console support.
++ */
++ if (co->index == -1 || co->index >= NR_PORTS)
++ co->index = 0;
++ uart = &ubi32_mailbox_ports[co->index];
++
++# ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE
++ if (options)
++ uart_parse_options(options, &baud, &parity, &bits, &flow);
++ else
++ ubi32_mailbox_console_get_options(uart, &baud, &parity, &bits);
++
++ //JB return uart_set_options(&uart->port, co, baud, parity, bits, flow);
++ return 0;
++# else
++ return 0;
++# endif
++}
++#endif /* defined (CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE) ||
++ defined (CONFIG_EARLY_PRINTK) */
++
++#ifdef CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE
++static void ubi32_mailbox_console_putchar(struct uart_port *port, int ch)
++{
++// struct ubi32_mailbox_port *uart = (struct ubi32_mailbox_port *)port;
++ while (!(UART_GET_LSR(uart) & THRE))
++ barrier();
++ UART_PUT_CHAR(uart, ch);
++ SSYNC();
++}
++
++/*
++ * Interrupts are disabled on entering
++ */
++static void
++ubi32_mailbox_console_write(struct console *co, const char *s, unsigned int count)
++{
++ struct ubi32_mailbox_port *uart = &ubi32_mailbox_ports[co->index];
++ unsigned long flags = 0;
++
++ spin_lock_irqsave(&uart->port.lock, flags);
++ uart_console_write(&uart->port, s, count, ubi32_mailbox_console_putchar);
++ spin_unlock_irqrestore(&uart->port.lock, flags);
++
++}
++
++static struct console ubi32_mailbox_console = {
++ .name = UBI32_MAILBOX_NAME,
++ .write = ubi32_mailbox_console_write,
++ .device = uart_console_device,
++ .setup = ubi32_mailbox_console_setup,
++ .flags = CON_PRINTBUFFER,
++ .index = -1,
++ .data = &ubi32_mailbox_reg,
++};
++
++static int __init ubi32_mailbox_console_init(void)
++{
++ ubi32_mailbox_init_ports();
++ register_console(&ubi32_mailbox_console);
++ return 0;
++}
++console_initcall(ubi32_mailbox_console_init);
++
++#define UBI32_MAILBOX_CONSOLE &ubi32_mailbox_console
++#else
++#define UBI32_MAILBOX_CONSOLE NULL
++#endif /* CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE */
++
++
++#ifdef CONFIG_EARLY_PRINTK
++static __init void ubi32_mailbox_early_putc(struct uart_port *port, int ch)
++{
++ UART_PUT_CHAR(uart, ch);
++}
++
++static __init void ubi32_mailbox_early_write(struct console *con, const char *s,
++ unsigned int n)
++{
++ struct ubi32_mailbox_port *uart = &ubi32_mailbox_ports[con->index];
++ unsigned int i;
++
++ for (i = 0; i < n; i++, s++) {
++ if (*s == '\n')
++ ubi32_mailbox_early_putc(&uart->port, '\r');
++ ubi32_mailbox_early_putc(&uart->port, *s);
++ }
++}
++
++static struct __init console ubi32_mailbox_early_console = {
++ .name = "early_UM",
++ .write = ubi32_mailbox_early_write,
++ .device = uart_console_device,
++ .flags = CON_PRINTBUFFER,
++ .setup = ubi32_mailbox_console_setup,
++ .index = -1,
++ .data = &ubi32_mailbox_reg,
++};
++
++/*
++ * XXX Unused in our driver. Need to find out what the termios initialization is good/needed for.
++ */
++struct console __init *ubi32_mailbox_early_init(unsigned int port,
++ unsigned int cflag)
++{
++ struct ubi32_mailbox_port *uart;
++ struct ktermios t;
++
++ if (port == -1 || port >= NR_PORTS)
++ port = 0;
++ ubi32_mailbox_init_ports();
++ ubi32_mailbox_early_console.index = port;
++ uart = &ubi32_mailbox_ports[port];
++ t.c_cflag = cflag;
++ t.c_iflag = 0;
++ t.c_oflag = 0;
++ t.c_lflag = ICANON;
++ t.c_line = port;
++ ubi32_mailbox_set_termios(&uart->port, &t, &t);
++ return &ubi32_mailbox_early_console;
++}
++
++#endif /* CONFIG_SERIAL_UBI32_MAILBOX_CONSOLE */
++
++static struct uart_driver ubi32_mailbox_reg = {
++ .owner = THIS_MODULE,
++ .driver_name = "ubi32_mailbox",
++ .dev_name = UBI32_MAILBOX_NAME,
++ .major = UBI32_MAILBOX_MAJOR,
++ .minor = UBI32_MAILBOX_MINOR,
++ .nr = NR_PORTS,
++ .cons = UBI32_MAILBOX_CONSOLE,
++};
++
++static int ubi32_mailbox_suspend(struct platform_device *dev, pm_message_t state)
++{
++ struct ubi32_mailbox_port *uart = platform_get_drvdata(dev);
++
++ if (uart)
++ uart_suspend_port(&ubi32_mailbox_reg, &uart->port);
++
++ return 0;
++}
++
++static int ubi32_mailbox_resume(struct platform_device *dev)
++{
++ struct ubi32_mailbox_port *uart = platform_get_drvdata(dev);
++
++ if (uart)
++ uart_resume_port(&ubi32_mailbox_reg, &uart->port);
++
++ return 0;
++}
++
++static int ubi32_mailbox_probe(struct platform_device *dev)
++{
++ struct resource *res = dev->resource;
++ int i;
++
++ for (i = 0; i < dev->num_resources; i++, res++)
++ if (res->flags & IORESOURCE_MEM)
++ break;
++
++ if (i < dev->num_resources) {
++ for (i = 0; i < NR_PORTS; i++, res++) {
++ if (ubi32_mailbox_ports[i].port.mapbase != res->start)
++ continue;
++ ubi32_mailbox_ports[i].port.dev = &dev->dev;
++ uart_add_one_port(&ubi32_mailbox_reg, &ubi32_mailbox_ports[i].port);
++ platform_set_drvdata(dev, &ubi32_mailbox_ports[i]);
++ }
++ }
++
++ return 0;
++}
++
++static int ubi32_mailbox_remove(struct platform_device *pdev)
++{
++ struct ubi32_mailbox_port *uart = platform_get_drvdata(pdev);
++
++ platform_set_drvdata(pdev, NULL);
++
++ if (uart)
++ uart_remove_one_port(&ubi32_mailbox_reg, &uart->port);
++
++ return 0;
++}
++
++static struct platform_driver ubi32_mailbox_driver = {
++ .probe = ubi32_mailbox_probe,
++ .remove = ubi32_mailbox_remove,
++ .suspend = ubi32_mailbox_suspend,
++ .resume = ubi32_mailbox_resume,
++ .driver = {
++ .name = "ubi32-mbox",
++ .owner = THIS_MODULE,
++ },
++};
++
++static int __init ubi32_mailbox_init(void)
++{
++ int ret;
++
++ pr_info("Serial: Ubicom32 mailbox serial driver.\n");
++
++ mailbox_console_flg = TRUE;
++ num_timeouts = 0;
++ ubi32_mailbox_init_ports();
++
++ ret = uart_register_driver(&ubi32_mailbox_reg);
++ if (ret == 0) {
++ ret = platform_driver_register(&ubi32_mailbox_driver);
++ if (ret) {
++ pr_debug("uart register failed\n");
++ uart_unregister_driver(&ubi32_mailbox_reg);
++ }
++ }
++
++ /*
++ * XXX HACK: currently probe does not get called, but the port needs to be added to work.
++ */
++ uart_add_one_port(&ubi32_mailbox_reg, &ubi32_mailbox_ports[0].port);
++ return ret;
++}
++
++static void __exit ubi32_mailbox_exit(void)
++{
++ platform_driver_unregister(&ubi32_mailbox_driver);
++ uart_unregister_driver(&ubi32_mailbox_reg);
++}
++
++module_init(ubi32_mailbox_init);
++module_exit(ubi32_mailbox_exit);
++
++MODULE_ALIAS_CHARDEV_MAJOR(UBI32_MAILBOX_MAJOR);
++MODULE_ALIAS("platform:ubi32_mailbox");
+--- /dev/null
++++ b/drivers/serial/ubi32_serdes.c
+@@ -0,0 +1,817 @@
++/*
++ * drivers/serial/ubi32_serdes.c
++ * Ubicom32 On-Chip Serial Driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/ioport.h>
++#include <linux/init.h>
++#include <linux/console.h>
++#include <linux/sysrq.h>
++#include <linux/platform_device.h>
++#include <linux/tty.h>
++#include <linux/tty_flip.h>
++#include <linux/serial_core.h>
++
++#include <asm/ip5000.h>
++#include <asm/ubicom32suart.h>
++
++
++#define SERIAL_UBICOM_PIN_RXD (1 << 0)
++#define SERIAL_UBICOM_PIN_TXD (1 << 6)
++#define SERIAL_UBICOM_CTL0 0x8b300000
++#define SERIAL_UBICOM_CTL1 0x00000009
++
++#define SERIAL_UBICOM_DATA_BIT 8 /* Fixed parameter - do not change */
++#define SERIAL_UBICOM_PAR_BIT 0 /* Fixed parameter - do not change */
++#define SERIAL_UBICOM_STOP_BIT 1 /* Fixed parameter - do not change */
++
++/* UART name and device definitions */
++#define UBI32_SERDES_NAME "ttyUS" // XXX
++#define UBI32_SERDES_MAJOR 206 // XXX
++#define UBI32_SERDES_MINOR 64 // XXX
++
++#define PORT_UBI32_SERDES 1234
++#define NR_PORTS 1
++
++struct uart_port ubi32_serdes_ports[NR_PORTS];
++
++struct ubi32_serdes_resource {
++ void *uart_base_addr;
++ int uart_irq;
++ int uart_clock;
++} ubi32_serdes_resource[NR_PORTS] = {
++ /*
++ * Get params from kernel command line (required for early printk)
++ * or from platform resources.
++ */
++ {0, 0, 0}
++};
++
++/*
++ * Can get overridden by 'serdes=' kernel command line.
++ */
++static int ubi32_serdes_default_baud_rate = 115200;
++
++
++#define IO_PORT(port) ((struct ubicom32_io_port *)port->membase)
++#define IO_PORT_INT_STATUS(port) (IO_PORT(port)->int_status)
++#define IO_PORT_INT_MASK(port) (IO_PORT(port)->int_mask)
++#define IO_PORT_INT_CLR(port) (IO_PORT(port)->int_clr)
++
++
++/*
++ * ubi32_serdes_get_char()
++ */
++static u8_t ubi32_serdes_get_char(struct ubicom32_io_port *io_port)
++{
++ /*
++ * Read from hardware (forced 32-bit atomic read).
++ */
++ u32_t data = 0;
++
++ if ( io_port ) {
++ io_port->int_clr = IO_PORTX_INT_SERDES_RXBF;
++ asm volatile (
++ "move.4 %0, %1 \n\t"
++ : "=r" (data)
++ : "m" (*(u32_t *)&(io_port->rx_fifo))
++ );
++ }
++
++ return (u8_t)(data & 0x000000ff);
++}
++
++/*
++ * ubi32_serdes_put_char()
++ */
++static void ubi32_serdes_put_char(struct ubicom32_io_port *io_port, u8_t c)
++{
++ u32_t data = 0x0000fe00 | (c << 1);
++
++ if ( io_port ) {
++ /*
++ * Fixed data format:
++ * [LSB]1 start bit - 8 data bits - no parity - 1 stop bit[MSB]
++ */
++ io_port->int_clr = IO_PORTX_INT_SERDES_TXBE;
++ io_port->ctl2 = data;
++ io_port->int_set = IO_PORTX_INT_SERDES_TXBUF_VALID;
++ }
++}
++
++static void ubi32_serdes_hw_init(struct uart_port *port, int baud)
++{
++ struct ubicom32_io_port *io_port = IO_PORT(port);
++
++ if ( io_port ) {
++ /*
++ * Put port functions 1-4 into reset state.
++ * Function 0 (GPIO) does not need or have a reset bit.
++ *
++ * Select SERDES function for restart below.
++ */
++ io_port->function =
++ IO_FUNC_FUNCTION_RESET(1) | IO_FUNC_FUNCTION_RESET(2) |
++ IO_FUNC_FUNCTION_RESET(3) | IO_FUNC_FUNCTION_RESET(4) |
++ IO_PORTX_FUNC_SERDES;
++
++ /*
++ * Configure SERDES baudrate
++ */
++ if ( baud == 0 ) {
++ baud = ubi32_serdes_default_baud_rate;
++ }
++
++ io_port->ctl0 =
++ SERIAL_UBICOM_CTL0 |
++ ((port->uartclk / (16 * baud)) - 1);
++
++ io_port->ctl1 =
++ SERIAL_UBICOM_CTL1;
++
++ /*
++ * don't interrupt until startup and start_tx
++ */
++ io_port->int_mask = 0;
++
++ /*
++ * Set TXD pin output, RXD input and prevent GPIO
++ * override on the TXD & RXD pins
++ */
++ io_port->gpio_ctl &= ~SERIAL_UBICOM_PIN_RXD;
++ io_port->gpio_ctl |= SERIAL_UBICOM_PIN_TXD;
++ io_port->gpio_mask &= ~(SERIAL_UBICOM_PIN_RXD | SERIAL_UBICOM_PIN_TXD);
++
++ /*
++ * Restart (un-reset) the port's SERDES function.
++ */
++ io_port->function &= ~(IO_FUNC_FUNCTION_RESET(IO_PORTX_FUNC_SERDES));
++ }
++}
++
++#define ULITE_STATUS_RXVALID IO_PORTX_INT_SERDES_RXBF
++#define ULITE_STATUS_OVERRUN 0
++#define ULITE_STATUS_FRAME 0
++#define ULITE_STATUS_PARITY 0
++#define ULITE_STATUS_TXEMPTY IO_PORTX_INT_SERDES_TXBE
++#define ULITE_STATUS_TXFULL 0
++
++static int ubi32_serdes_receive(struct uart_port *port, int stat)
++{
++ struct tty_struct *tty = port->info->port.tty;
++ unsigned char ch = 0;
++ char flag = TTY_NORMAL;
++
++ if ((stat & (ULITE_STATUS_RXVALID | ULITE_STATUS_OVERRUN
++ | ULITE_STATUS_FRAME)) == 0)
++ return 0;
++
++ /* stats */
++ if (stat & ULITE_STATUS_RXVALID) {
++ port->icount.rx++;
++ ch = ubi32_serdes_get_char((struct ubicom32_io_port *)port->membase);
++
++ if (stat & ULITE_STATUS_PARITY)
++ port->icount.parity++;
++ }
++
++ if (stat & ULITE_STATUS_OVERRUN)
++ port->icount.overrun++;
++
++ if (stat & ULITE_STATUS_FRAME)
++ port->icount.frame++;
++
++
++ /* drop byte with parity error if IGNPAR specificed */
++ if (stat & port->ignore_status_mask & ULITE_STATUS_PARITY)
++ stat &= ~ULITE_STATUS_RXVALID;
++
++ stat &= port->read_status_mask;
++
++ if (stat & ULITE_STATUS_PARITY)
++ flag = TTY_PARITY;
++
++ stat &= ~port->ignore_status_mask;
++
++ if (stat & ULITE_STATUS_RXVALID)
++ tty_insert_flip_char(tty, ch, flag);
++
++ if (stat & ULITE_STATUS_FRAME)
++ tty_insert_flip_char(tty, 0, TTY_FRAME);
++
++ if (stat & ULITE_STATUS_OVERRUN)
++ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
++
++ return 1;
++}
++
++/*
++ * interrupts are disabled on entry
++ */
++static void ubi32_serdes_stop_tx(struct uart_port *port)
++{
++ IO_PORT_INT_MASK(port) = IO_PORT_INT_MASK(port) & ~IO_PORTX_INT_SERDES_TXBE;
++}
++
++static int ubi32_serdes_transmit(struct uart_port *port, int stat)
++{
++ struct circ_buf *xmit = &port->info->xmit;
++
++ if (!(stat & IO_PORTX_INT_SERDES_TXBE))
++ return 0;
++
++ if (port->x_char) {
++ ubi32_serdes_put_char(IO_PORT(port), port->x_char);
++ port->x_char = 0;
++ port->icount.tx++;
++ return 1;
++ }
++
++ if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
++ ubi32_serdes_stop_tx(port);
++ return 0;
++ }
++
++ ubi32_serdes_put_char(IO_PORT(port), xmit->buf[xmit->tail]);
++ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE-1);
++ port->icount.tx++;
++
++ /* wake up */
++ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
++ uart_write_wakeup(port);
++
++ if (uart_circ_empty(xmit))
++ ubi32_serdes_stop_tx(port);
++
++ return 1;
++}
++
++/*
++ * port is locked and interrupts are disabled
++ */
++static void ubi32_serdes_start_tx(struct uart_port *port)
++{
++ IO_PORT_INT_MASK(port) = IO_PORT_INT_MASK(port) | IO_PORTX_INT_SERDES_TXBE;
++ ubi32_serdes_transmit(port, IO_PORT_INT_STATUS(port));
++}
++
++/*
++ * Interrupts are enabled
++ */
++static void ubi32_serdes_stop_rx(struct uart_port *port)
++{
++ /* don't forward any more data (like !CREAD) */
++ port->ignore_status_mask = IO_PORTX_INT_SERDES_RXBF;
++}
++
++/*
++ * Set the modem control timer to fire immediately.
++ */
++static void ubi32_serdes_enable_ms(struct uart_port *port)
++{
++ /* N/A */
++}
++
++static irqreturn_t ubi32_serdes_isr(int irq, void *dev_id)
++{
++ struct uart_port *port = dev_id;
++ int busy;
++
++ spin_lock(&port->lock);
++
++ do {
++ int stat = IO_PORT_INT_STATUS(port);
++ busy = ubi32_serdes_receive(port, stat);
++ busy |= ubi32_serdes_transmit(port, stat);
++ } while (busy);
++
++ tty_flip_buffer_push(port->info->port.tty);
++
++ spin_unlock(&port->lock);
++
++ return IRQ_HANDLED;
++}
++
++/*
++ * Return TIOCSER_TEMT when transmitter is not busy.
++ */
++static unsigned int ubi32_serdes_tx_empty(struct uart_port *port)
++{
++ unsigned long flags;
++ unsigned int ret;
++
++ spin_lock_irqsave(&port->lock, flags);
++ ret = IO_PORT_INT_STATUS(port);
++ spin_unlock_irqrestore(&port->lock, flags);
++
++ return ret & ULITE_STATUS_TXEMPTY ? TIOCSER_TEMT : 0;
++}
++
++static unsigned int ubi32_serdes_get_mctrl(struct uart_port *port)
++{
++ return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
++}
++
++static void ubi32_serdes_set_mctrl(struct uart_port *port, unsigned int mctrl)
++{
++ /* N/A */
++}
++
++/*
++ * Interrupts are always disabled.
++ */
++static void ubi32_serdes_break_ctl(struct uart_port *port, int break_state)
++{
++ /* N/A */
++}
++
++static int ubi32_serdes_startup(struct uart_port *port)
++{
++ if (request_irq(port->irq, ubi32_serdes_isr, IRQF_DISABLED,
++ "UBI32_SERDES", port)) {
++ printk(KERN_NOTICE "Unable to attach port interrupt\n");
++ return -EBUSY;
++ }
++
++ IO_PORT_INT_CLR(port) = IO_PORTX_INT_SERDES_RXBF;
++ IO_PORT_INT_MASK(port) = IO_PORTX_INT_SERDES_RXBF;
++ return 0;
++}
++
++static void ubi32_serdes_shutdown(struct uart_port *port)
++{
++ struct ubi32_serdes_port *uart = (struct ubi32_serdes_port *)port;
++
++ IO_PORT_INT_MASK(port) = 0;
++ free_irq(port->irq, uart);
++}
++
++static void
++ubi32_serdes_set_termios(struct uart_port *port, struct ktermios *termios,
++ struct ktermios *old)
++{
++ unsigned long flags;
++ unsigned int baud;
++
++ spin_lock_irqsave(&port->lock, flags);
++
++ port->read_status_mask = ULITE_STATUS_RXVALID | ULITE_STATUS_OVERRUN
++ | ULITE_STATUS_TXFULL;
++
++ if (termios->c_iflag & INPCK)
++ port->read_status_mask |=
++ ULITE_STATUS_PARITY | ULITE_STATUS_FRAME;
++
++ port->ignore_status_mask = 0;
++ if (termios->c_iflag & IGNPAR)
++ port->ignore_status_mask |= ULITE_STATUS_PARITY
++ | ULITE_STATUS_FRAME | ULITE_STATUS_OVERRUN;
++
++ /* ignore all characters if CREAD is not set */
++ if ((termios->c_cflag & CREAD) == 0)
++ port->ignore_status_mask |=
++ ULITE_STATUS_RXVALID | ULITE_STATUS_PARITY
++ | ULITE_STATUS_FRAME | ULITE_STATUS_OVERRUN;
++
++ /* update timeout */
++ baud = uart_get_baud_rate(port, termios, old, 0, 460800);
++ uart_update_timeout(port, termios->c_cflag, baud);
++
++ IO_PORT(port)->ctl0 = SERIAL_UBICOM_CTL0 |
++ ((port->uartclk / (16 * baud)) - 1);
++
++ spin_unlock_irqrestore(&port->lock, flags);
++}
++
++static const char *ubi32_serdes_type(struct uart_port *port)
++{
++ return port->type == PORT_UBI32_SERDES ? "UBI32_SERDES" : NULL;
++}
++
++/*
++ * Release the memory region(s) being used by 'port'.
++ */
++static void ubi32_serdes_release_port(struct uart_port *port)
++{
++}
++
++/*
++ * Request the memory region(s) being used by 'port'.
++ */
++static int ubi32_serdes_request_port(struct uart_port *port)
++{
++ return 0;
++}
++
++/*
++ * Configure/autoconfigure the port.
++ */
++static void ubi32_serdes_config_port(struct uart_port *port, int flags)
++{
++ if (flags & UART_CONFIG_TYPE &&
++ ubi32_serdes_request_port(port) == 0)
++ port->type = PORT_UBI32_SERDES;
++}
++
++/*
++ * Verify the new serial_struct (for TIOCSSERIAL).
++ * The only change we allow are to the flags and type, and
++ * even then only between PORT_UBI32_SERDES and PORT_UNKNOWN
++ */
++static int
++ubi32_serdes_verify_port(struct uart_port *port, struct serial_struct *ser)
++{
++ return 0;
++}
++
++static struct uart_ops ubi32_serdes_pops = {
++ .tx_empty = ubi32_serdes_tx_empty,
++ .set_mctrl = ubi32_serdes_set_mctrl,
++ .get_mctrl = ubi32_serdes_get_mctrl,
++ .stop_tx = ubi32_serdes_stop_tx,
++ .start_tx = ubi32_serdes_start_tx,
++ .stop_rx = ubi32_serdes_stop_rx,
++ .enable_ms = ubi32_serdes_enable_ms,
++ .break_ctl = ubi32_serdes_break_ctl,
++ .startup = ubi32_serdes_startup,
++ .shutdown = ubi32_serdes_shutdown,
++ .set_termios = ubi32_serdes_set_termios,
++ .type = ubi32_serdes_type,
++ .release_port = ubi32_serdes_release_port,
++ .request_port = ubi32_serdes_request_port,
++ .config_port = ubi32_serdes_config_port,
++ .verify_port = ubi32_serdes_verify_port,
++};
++
++static void __init ubi32_serdes_init_ports(void)
++{
++ int i;
++
++ for (i = 0; i < NR_PORTS; i++) {
++ ubi32_serdes_ports[i].uartclk = ubi32_serdes_resource[i].uart_clock;
++ ubi32_serdes_ports[i].ops = &ubi32_serdes_pops;
++ ubi32_serdes_ports[i].line = i;
++ ubi32_serdes_ports[i].iotype = UPIO_MEM;
++ ubi32_serdes_ports[i].membase =
++ (void __iomem *)ubi32_serdes_resource[i].uart_base_addr;
++ ubi32_serdes_ports[i].mapbase =
++ (resource_size_t)ubi32_serdes_resource[i].uart_base_addr;
++ ubi32_serdes_ports[i].irq =
++ ubi32_serdes_resource[i].uart_irq;
++ ubi32_serdes_ports[i].flags = UPF_BOOT_AUTOCONF;
++
++ ubi32_serdes_hw_init(&ubi32_serdes_ports[i], 0);
++ }
++
++}
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
++/*
++ * If the port was already initialised (eg, by a boot loader),
++ * try to determine the current setup.
++ */
++static void __init
++ubi32_serdes_console_get_options(struct uart_port *port, int *baud)
++{
++ u32 round_to = 1200;
++ u32 real_baud;
++
++ /*
++ * We might get called before platform init and with no
++ * kernel command line options, so port might be NULL.
++ */
++ *baud = ubi32_serdes_default_baud_rate;;
++ if ( IO_PORT(port) == 0 )
++ return;
++
++ real_baud = port->uartclk
++ / (16 * ((IO_PORT(port)->ctl0 & ~SERIAL_UBICOM_CTL0) + 1));
++
++ *baud = ((real_baud + round_to - 1) / round_to) * round_to;
++
++ pr_debug("%s:baud = %d, real_baud = %d\n", __FUNCTION__, *baud, real_baud);
++}
++#endif
++
++#if defined(CONFIG_SERIAL_UBI32_SERDES_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
++static struct uart_driver ubi32_serdes_reg;
++
++static int __init
++ubi32_serdes_console_setup(struct console *co, char *options)
++{
++ struct uart_port *port;
++#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
++ int baud = ubi32_serdes_default_baud_rate;
++ int bits = 8;
++ int parity = 'n';
++ int flow = 'n';
++#endif
++
++ /*
++ * Check whether an invalid uart number has been specified, and
++ * if so, search for the first available port that does have
++ * console support.
++ */
++ if (co->index == -1 || co->index >= NR_PORTS)
++ co->index = 0;
++ port = &ubi32_serdes_ports[co->index];
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
++ if (options) {
++ uart_parse_options(options, &baud, &parity, &bits, &flow);
++ ubi32_serdes_hw_init(port, baud);
++ }
++ else
++ ubi32_serdes_console_get_options(port, &baud);
++
++ return uart_set_options(port, co, baud, parity, bits, flow);
++#else
++ return 0;
++#endif
++}
++#endif /* defined (CONFIG_SERIAL_UBI32_SERDES_CONSOLE) ||
++ defined (CONFIG_EARLY_PRINTK) */
++
++#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
++static void
++ubi32_serdes_console_putchar(struct uart_port *port, int ch)
++{
++ if ( IO_PORT(port) ) {
++ while (!(IO_PORT_INT_STATUS(port) & IO_PORTX_INT_SERDES_TXBE))
++ barrier();
++ ubi32_serdes_put_char(IO_PORT(port), ch);
++ }
++}
++
++/*
++ * Interrupts are disabled on entering
++ */
++static void
++ubi32_serdes_console_write(struct console *co, const char *s, unsigned int count)
++{
++ struct uart_port *port = &ubi32_serdes_ports[co->index];
++ unsigned long flags = 0;
++
++ spin_lock_irqsave(&port->lock, flags);
++ uart_console_write(port, s, count, ubi32_serdes_console_putchar);
++ spin_unlock_irqrestore(&port->lock, flags);
++
++}
++
++static struct console ubi32_serdes_console = {
++ .name = UBI32_SERDES_NAME,
++ .write = ubi32_serdes_console_write,
++ .device = uart_console_device,
++ .setup = ubi32_serdes_console_setup,
++ .flags = CON_PRINTBUFFER,
++ .index = -1,
++ .data = &ubi32_serdes_reg,
++};
++
++static int __init ubi32_serdes_console_init(void)
++{
++ ubi32_serdes_init_ports();
++ register_console(&ubi32_serdes_console);
++ return 0;
++}
++console_initcall(ubi32_serdes_console_init);
++
++#define UBI32_SERDES_CONSOLE &ubi32_serdes_console
++#else
++#define UBI32_SERDES_CONSOLE NULL
++#endif /* CONFIG_SERIAL_UBI32_SERDES_CONSOLE */
++
++
++#ifdef CONFIG_EARLY_PRINTK
++static __init void ubi32_serdes_early_putc(struct uart_port *port, int ch)
++{
++ unsigned timeout = 0xffff;
++
++ while ((!(IO_PORT_INT_STATUS(port) & IO_PORTX_INT_SERDES_TXBE)) && --timeout)
++ cpu_relax();
++ ubi32_serdes_put_char(IO_PORT(port), ch);
++}
++
++static __init void ubi32_serdes_early_write(struct console *con, const char *s,
++ unsigned int n)
++{
++ struct uart_port *port = &ubi32_serdes_ports[con->index];
++ unsigned int i;
++
++ for (i = 0; i < n; i++, s++) {
++ if (*s == '\n')
++ ubi32_serdes_early_putc(port, '\r');
++ ubi32_serdes_early_putc(port, *s);
++ }
++}
++
++static struct __init console ubi32_serdes_early_console = {
++ .name = "early_US",
++ .write = ubi32_serdes_early_write,
++ .device = uart_console_device,
++ .flags = CON_PRINTBUFFER,
++ .setup = ubi32_serdes_console_setup,
++ .index = -1,
++ .data = &ubi32_serdes_reg,
++};
++
++/*
++ * XXX Unused in our driver. Need to find out what the termios initialization is good/needed for.
++ */
++struct console __init *ubi32_serdes_early_init(unsigned int port_index,
++ unsigned int cflag)
++{
++ struct uart_port *uart;
++ struct ktermios t;
++
++ if (port_index == -1 || port_index >= NR_PORTS)
++ port_index = 0;
++ ubi32_serdes_init_ports();
++ ubi32_serdes_early_console.index = port_index;
++ uart = &ubi32_serdes_ports[port_index];
++ t.c_cflag = cflag;
++ t.c_iflag = 0;
++ t.c_oflag = 0;
++ t.c_lflag = ICANON;
++ t.c_line = port_index;
++ ubi32_serdes_set_termios(uart, &t, &t);
++ return &ubi32_serdes_early_console;
++}
++
++#endif /* CONFIG_SERIAL_UBI32_SERDES_CONSOLE */
++
++static struct uart_driver ubi32_serdes_reg = {
++ .owner = THIS_MODULE,
++ .driver_name = "ubi32_serdes",
++ .dev_name = UBI32_SERDES_NAME,
++ .major = UBI32_SERDES_MAJOR,
++ .minor = UBI32_SERDES_MINOR,
++ .nr = NR_PORTS,
++ .cons = UBI32_SERDES_CONSOLE,
++};
++
++static int ubi32_serdes_suspend(struct platform_device *dev, pm_message_t state)
++{
++ struct uart_port *port = platform_get_drvdata(dev);
++
++ if (port)
++ uart_suspend_port(&ubi32_serdes_reg, port);
++
++ return 0;
++}
++
++static int ubi32_serdes_resume(struct platform_device *dev)
++{
++ struct uart_port *port = platform_get_drvdata(dev);
++
++ if (port)
++ uart_resume_port(&ubi32_serdes_reg, port);
++
++ return 0;
++}
++
++static int ubi32_serdes_probe(struct platform_device *dev)
++{
++ struct resource *res = dev->resource;
++ int i;
++
++ for (i = 0; i < dev->num_resources; i++, res++) {
++ if (res->flags & IORESOURCE_MEM) {
++ ubi32_serdes_resource[0].uart_base_addr = (void *) res->start;
++ }
++ else if (res->flags & IORESOURCE_IRQ) {
++ ubi32_serdes_resource[0].uart_irq = res->start;
++ }
++ else if (res->flags & UBICOM32_SUART_IORESOURCE_CLOCK) {
++ ubi32_serdes_resource[0].uart_clock = res->start;
++ }
++ }
++
++ ubi32_serdes_init_ports();
++
++ return 0;
++}
++
++static int ubi32_serdes_remove(struct platform_device *pdev)
++{
++ struct uart_port *port = platform_get_drvdata(pdev);
++
++ platform_set_drvdata(pdev, NULL);
++
++ if (port)
++ uart_remove_one_port(&ubi32_serdes_reg, port);
++
++ return 0;
++}
++
++static struct platform_driver ubi32_serdes_driver = {
++ .remove = ubi32_serdes_remove,
++ .suspend = ubi32_serdes_suspend,
++ .resume = ubi32_serdes_resume,
++ .driver = {
++ .name = "ubicom32suart",
++ .owner = THIS_MODULE,
++ },
++};
++
++
++#ifndef MODULE
++/*
++ * Called at boot time.
++ *
++ * You can specify IO base, IRQ, and clock for the serdes serial port
++ * using kernel command line "serdes=0xiobase,irq,clock". Values
++ * specified will be overwritten by platform device data, if present.
++ */
++static int __init ubi32_serdes_setup(char *str)
++{
++#define N_PARMS (4+1)
++ int ints[N_PARMS];
++ int i;
++
++ str = get_options(str, ARRAY_SIZE(ints), ints);
++
++ for (i = 0; i < N_PARMS; i++) {
++ if (i < ints[0]) {
++ if (i == 0) {
++ ubi32_serdes_resource[0].uart_base_addr = (void *) ints[i+1];
++ }
++ else if (i == 1) {
++ ubi32_serdes_resource[0].uart_irq = ints[i+1];
++ }
++ else if (i == 2) {
++ ubi32_serdes_resource[0].uart_clock = ints[i+1];
++ }
++ else if (i == 3) {
++ ubi32_serdes_default_baud_rate = ints[i+1];
++ }
++ }
++ }
++ return 1;
++}
++
++__setup("serdes=", ubi32_serdes_setup);
++#endif
++
++static int __init ubi32_serdes_init(void)
++{
++ int ret;
++
++ pr_info("Serial: Ubicom32 serdes uart serial driver\n");
++
++ ret = platform_driver_probe(&ubi32_serdes_driver, ubi32_serdes_probe);
++ if (ret != 0) {
++ printk(KERN_INFO "serdes platform_driver_probe() failed: %d\n", ret);
++ return ret;
++ }
++
++ ubi32_serdes_init_ports();
++
++ ret = uart_register_driver(&ubi32_serdes_reg);
++ if ( ret == 0 ) {
++ ret = uart_add_one_port(&ubi32_serdes_reg, &ubi32_serdes_ports[0]);
++ if ( ret != 0 ) {
++ uart_unregister_driver(&ubi32_serdes_reg);
++ }
++ }
++
++ return ret;
++}
++
++static void __exit ubi32_serdes_exit(void)
++{
++ platform_driver_unregister(&ubi32_serdes_driver);
++ uart_unregister_driver(&ubi32_serdes_reg);
++}
++
++module_init(ubi32_serdes_init);
++module_exit(ubi32_serdes_exit);
++
++MODULE_AUTHOR("Rainer Keller <rkeller@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom generic serial port driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_CHARDEV_MAJOR(UBI32_SERDES_MAJOR);
++MODULE_ALIAS("platform:ubi32_serdes");
+--- /dev/null
++++ b/drivers/serial/ubi32_uarttio.c
+@@ -0,0 +1,1171 @@
++/*
++ * drivers/serial/ubi32_uarttio.c
++ * Ubicom32 Serial Virtual Peripherial Driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/module.h>
++#include <linux/ioport.h>
++#include <linux/init.h>
++#include <linux/console.h>
++#include <linux/sysrq.h>
++#include <linux/platform_device.h>
++#include <linux/tty.h>
++#include <linux/tty_flip.h>
++#include <linux/serial_core.h>
++
++#include <asm/ip5000.h>
++#include <asm/gpio.h>
++#include <asm/thread.h>
++#include <asm/uart_tio.h>
++
++#define DRIVER_NAME "ubi32_uarttio"
++
++/*
++ * For storing the module parameters.
++ */
++#define UBI32_UARTTIO_MAX_PARAM_LEN 80
++static char utio_ports_param[UBI32_UARTTIO_MAX_PARAM_LEN];
++
++/*
++ * UART name and device definitions
++ */
++#define UBI32_UARTTIO_NAME "ttyUV" // XXX
++#define UBI32_UARTTIO_MAJOR 206 // XXX
++#define UBI32_UARTTIO_MINOR 64 // XXX
++
++/*
++ * The following structures are allocated statically because the
++ * memory allocation subsystem is not initialized this early on
++ */
++
++/*
++ * Per port structure
++ */
++struct ubi32_uarttio_port {
++ struct uarttio_uart *uart;
++ unsigned int tx_pin;
++ unsigned int rx_pin;
++
++ struct uart_port port;
++
++ u8_t added;
++
++ /*
++ * If this value is set, the port has had its direction set already
++ */
++ u8_t port_init;
++};
++static struct ubi32_uarttio_port uarttio_ports[CONFIG_SERIAL_UBI32_UARTTIO_NR_UARTS];
++
++/*
++ * Number of ports currently initialized
++ */
++static int uarttio_nports;
++
++/*
++ * Per device structure
++ */
++struct ubi32_uarttio_instance {
++ struct uarttio_regs *regs;
++ struct ubi32_uarttio_port *ports;
++
++ u8_t irq_requested;
++ u8_t driver_registered;
++ u8_t irq;
++};
++static struct ubi32_uarttio_instance uarttio_inst;
++
++#ifdef CONFIG_SERIAL_UBI32_UARTTIO_CONSOLE
++static struct console ubi32_uarttio_console;
++#define UBI32_UARTTIO_CONSOLE &ubi32_uarttio_console
++#else
++#define UBI32_UARTTIO_CONSOLE NULL
++#endif
++
++static struct uart_driver ubi32_uarttio_uart_driver = {
++ .owner = THIS_MODULE,
++ .driver_name = DRIVER_NAME,
++ .dev_name = UBI32_UARTTIO_NAME,
++ .major = UBI32_UARTTIO_MAJOR,
++ .minor = UBI32_UARTTIO_MINOR,
++ .cons = UBI32_UARTTIO_CONSOLE,
++};
++
++#ifdef UBI32_UARTTIO_UNUSED
++/*
++ * ubi32_uarttio_get_send_space
++ */
++static int ubi32_uarttio_get_send_space(struct uarttio_uart *uart)
++{
++ int count = uart->tx_fifo_head - uart->tx_fifo_tail;
++ if (count < 0) {
++ count += uart->tx_fifo_size;
++ }
++ return uart->tx_fifo_size - count;
++}
++#endif
++
++/*
++ * ubi32_uarttio_get_recv_ready
++ */
++static int ubi32_uarttio_get_recv_ready(struct uarttio_uart *uart)
++{
++ int count = uart->rx_fifo_head - uart->rx_fifo_tail;
++ if (count < 0) {
++ count += uart->rx_fifo_size;
++ }
++ return count;
++}
++
++/*
++ * ubi32_uarttio_get_char()
++ */
++static u8_t ubi32_uarttio_get_char(struct uarttio_uart *uart)
++{
++ /*
++ * Retrieve byte
++ */
++ u32_t tail = uart->rx_fifo_tail;
++ u8_t data = uart->rx_fifo[tail];
++
++ if (++tail == uart->rx_fifo_size) {
++ tail = 0;
++ }
++ uart->rx_fifo_tail = tail;
++
++ return data;
++}
++
++/*
++ * ubi32_uarttio_put_char()
++ */
++static int ubi32_uarttio_put_char(struct uarttio_uart *uart, u8_t c)
++{
++ u32_t head = uart->tx_fifo_head;
++ u32_t prev = head;
++
++ /*
++ * Wrap
++ */
++ if (++head == uart->tx_fifo_size) {
++ head = 0;
++ }
++
++ /*
++ * If there isn't any space, return EBUSY
++ */
++ if (head == uart->tx_fifo_tail) {
++ return -EBUSY;
++ }
++
++ /*
++ * Put the character in the queue
++ */
++ uart->tx_fifo[prev] = c;
++ uart->tx_fifo_head = head;
++
++ return 0;
++}
++
++/*
++ * ubi32_uarttio_set_baud
++ */
++static int ubi32_uarttio_set_baud(struct ubi32_uarttio_port *uup, unsigned int baud)
++{
++ if (uup->uart->current_baud_rate == baud) {
++ return 0;
++ }
++
++ uup->uart->baud_rate = baud;
++ uup->uart->flags |= UARTTIO_UART_FLAG_SET_RATE;
++ while (uup->uart->flags & UARTTIO_UART_FLAG_SET_RATE) {
++ cpu_relax();
++ }
++
++ if (uup->uart->current_baud_rate != baud) {
++ /*
++ * Failed to set baud rate
++ */
++ printk(KERN_WARNING "Invalid baud rate %u, running at %u\n", baud, uup->uart->current_baud_rate);
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
++/*
++ * ubi32_uarttio_handle_receive
++ */
++static void ubi32_uarttio_handle_receive(struct ubi32_uarttio_port *uup, int stat)
++{
++ struct uarttio_uart *uart = uup->uart;
++ struct uart_port *port = &uup->port;
++ struct tty_struct *tty = port->info->port.tty;
++ unsigned char ch = 0;
++ char flag = TTY_NORMAL;
++ int count;
++
++ if ((stat & (UARTTIO_UART_INT_RX | UARTTIO_UART_INT_RXFRAME | UARTTIO_UART_INT_RXOVF)) == 0) {
++ return;
++ }
++
++ if (stat & UARTTIO_UART_INT_RX) {
++ count = ubi32_uarttio_get_recv_ready(uart);
++ port->icount.rx += count;
++ }
++
++ if (stat & UARTTIO_UART_INT_RXOVF) {
++ port->icount.overrun++;
++ }
++
++ if (stat & UARTTIO_UART_INT_RXFRAME) {
++ port->icount.frame++;
++ }
++
++ stat &= ~port->ignore_status_mask;
++
++ if (stat & UARTTIO_UART_INT_RX) {
++ int i;
++ for (i = 0; i < count; i++) {
++ ch = ubi32_uarttio_get_char(uart);
++ tty_insert_flip_char(tty, ch, flag);
++ }
++ }
++
++ if (stat & UARTTIO_UART_INT_RXFRAME) {
++ tty_insert_flip_char(tty, 0, TTY_FRAME);
++ }
++
++ if (stat & UARTTIO_UART_INT_RXOVF) {
++ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
++ }
++}
++
++/*
++ * ubi32_uarttio_stop_tx
++ * interrupts are disabled on entry
++ */
++static void ubi32_uarttio_stop_tx(struct uart_port *port)
++{
++ struct ubi32_uarttio_port *uup = port->private_data;
++
++ uup->uart->int_mask &= ~UARTTIO_UART_INT_TXBE;
++}
++
++/*
++ * ubi32_uarttio_handle_transmit
++ */
++static void ubi32_uarttio_handle_transmit(struct ubi32_uarttio_port *uup, int stat)
++{
++ struct uarttio_uart *uart = uup->uart;
++ struct uart_port *port = &uup->port;
++ struct circ_buf *xmit = &port->info->xmit;
++
++ if (!(stat & UARTTIO_UART_INT_TXBE)) {
++ return;
++ }
++
++ if (port->x_char) {
++ if (ubi32_uarttio_put_char(uart, port->x_char)) {
++ return;
++ }
++ port->x_char = 0;
++ port->icount.tx++;
++ return;
++ }
++
++ if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
++ ubi32_uarttio_stop_tx(port);
++ return;
++ }
++
++ /*
++ * Send as many characters as we can
++ */
++ while (ubi32_uarttio_put_char(uart, xmit->buf[xmit->tail]) == 0) {
++ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
++ port->icount.tx++;
++ if (uart_circ_empty(xmit)) {
++ break;
++ }
++ }
++
++ /* wake up */
++ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) {
++ uart_write_wakeup(port);
++ }
++
++ if (uart_circ_empty(xmit)) {
++ ubi32_uarttio_stop_tx(port);
++ }
++}
++
++/*
++ * ubi32_uarttio_start_tx
++ * port is locked and interrupts are disabled
++ */
++static void ubi32_uarttio_start_tx(struct uart_port *port)
++{
++ struct ubi32_uarttio_port *uup = port->private_data;
++ struct uarttio_uart *uart = uup->uart;
++
++ uart->int_mask |= UARTTIO_UART_INT_TXBE;
++}
++
++/*
++ * ubi32_uarttio_stop_rx
++ * Interrupts are enabled
++ */
++static void ubi32_uarttio_stop_rx(struct uart_port *port)
++{
++ struct ubi32_uarttio_port *uup = port->private_data;
++ struct uarttio_uart *uart = uup->uart;
++
++ /*
++ * don't forward any more data (like !CREAD)
++ */
++ uart->int_mask &= ~UARTTIO_UART_INT_RX;
++ port->ignore_status_mask = UARTTIO_UART_INT_RX;
++}
++
++/*
++ * ubi32_uarttio_enable_ms
++ * Set the modem control timer to fire immediately.
++ */
++static void ubi32_uarttio_enable_ms(struct uart_port *port)
++{
++ /* N/A */
++}
++
++/*
++ * ubi32_uarttio_isr
++ */
++static irqreturn_t ubi32_uarttio_isr(int irq, void *appdata)
++{
++ struct ubi32_uarttio_port *uup = uarttio_ports;
++ int i;
++
++ /*
++ * Service all of the ports
++ */
++ for (i = 0; i < uarttio_nports; i++) {
++ unsigned int flags;
++
++ if (!(uup->uart->flags & UARTTIO_UART_FLAG_ENABLED)) {
++ uup++;
++ continue;
++ }
++
++ spin_lock(&uup->port.lock);
++
++ flags = uup->uart->int_flags;
++
++ uup->uart->int_flags = 0;
++
++ ubi32_uarttio_handle_receive(uup, flags);
++ ubi32_uarttio_handle_transmit(uup, flags);
++
++ tty_flip_buffer_push(uup->port.info->port.tty);
++
++ spin_unlock(&uup->port.lock);
++
++ uup++;
++ }
++
++ return IRQ_HANDLED;
++}
++
++/*
++ * ubi32_uarttio_tx_empty
++ * Return TIOCSER_TEMT when transmitter is not busy.
++ */
++static unsigned int ubi32_uarttio_tx_empty(struct uart_port *port)
++{
++ struct ubi32_uarttio_port *uup = port->private_data;
++
++ if (uup->uart->tx_fifo_head == uup->uart->tx_fifo_tail) {
++ return TIOCSER_TEMT;
++ }
++
++ return 0;
++}
++
++/*
++ * ubi32_uarttio_get_mctrl
++ */
++static unsigned int ubi32_uarttio_get_mctrl(struct uart_port *port)
++{
++ return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
++}
++
++/*
++ * ubi32_uarttio_set_mctrl
++ */
++static void ubi32_uarttio_set_mctrl(struct uart_port *port, unsigned int mctrl)
++{
++ /* N/A */
++}
++
++/*
++ * ubi32_uarttio_break_ctl
++ */
++static void ubi32_uarttio_break_ctl(struct uart_port *port, int break_state)
++{
++ /* N/A */
++}
++
++/*
++ * ubi32_uarttio_startup
++ */
++static int ubi32_uarttio_startup(struct uart_port *port)
++{
++ struct ubi32_uarttio_port *uup = port->private_data;
++ struct uarttio_uart *uart = uup->uart;
++
++ uart->flags |= UARTTIO_UART_FLAG_ENABLED;
++
++ uart->int_mask |= UARTTIO_UART_INT_TXBE | UARTTIO_UART_INT_RX;
++
++ return 0;
++}
++
++/*
++ * ubi32_uarttio_shutdown
++ */
++static void ubi32_uarttio_shutdown(struct uart_port *port)
++{
++ struct ubi32_uarttio_port *uup = port->private_data;
++ struct uarttio_uart *uart = uup->uart;
++
++ uart->int_mask = 0;
++ uart->flags &= ~UARTTIO_UART_FLAG_ENABLED;
++}
++
++/*
++ * ubi32_uarttio_set_termios
++ */
++static void ubi32_uarttio_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old)
++{
++ struct ubi32_uarttio_port *uup = port->private_data;
++ unsigned long flags;
++ unsigned int baud;
++
++ spin_lock_irqsave(&port->lock, flags);
++
++#if 0
++ port->read_status_mask = UBI32_UARTTIO_RX | UBI32_UARTTIO_RXOVF | UBI32_UARTTIO_TXOVF;
++
++ if (termios->c_iflag & INPCK) {
++ port->read_status_mask |= UBI32_UARTTIO_RXFRAME;
++ }
++#endif
++
++ port->ignore_status_mask = 0;
++ if (termios->c_iflag & IGNPAR) {
++ port->ignore_status_mask |= UARTTIO_UART_INT_RXFRAME |
++ UARTTIO_UART_INT_RXOVF;
++ }
++
++ /*
++ * ignore all characters if CREAD is not set
++ */
++ if ((termios->c_cflag & CREAD) == 0) {
++ port->ignore_status_mask |= UARTTIO_UART_INT_RX |
++ UARTTIO_UART_INT_RXFRAME |
++ UARTTIO_UART_INT_RXOVF;
++ }
++
++ /* update timeout */
++ baud = uart_get_baud_rate(port, termios, old, 0, 460800);
++ uart_update_timeout(port, termios->c_cflag, baud);
++
++ ubi32_uarttio_set_baud(uup, baud);
++ spin_unlock_irqrestore(&port->lock, flags);
++}
++
++/*
++ * ubi32_uarttio_type
++ */
++static const char *ubi32_uarttio_type(struct uart_port *port)
++{
++ return (port->type == PORT_UBI32_UARTTIO) ? "UBI32_UARTTIO" : NULL;
++}
++
++/*
++ * ubi32_uarttio_release_port
++ * Release the memory region(s) being used by 'port'.
++ */
++static void ubi32_uarttio_release_port(struct uart_port *port)
++{
++}
++
++/*
++ * ubi32_uarttio_request_port
++ * Request the memory region(s) being used by 'port'.
++ */
++static int ubi32_uarttio_request_port(struct uart_port *port)
++{
++ return 0;
++}
++
++/*
++ * ubi32_uarttio_config_port
++ * Configure/autoconfigure the port.
++ */
++static void ubi32_uarttio_config_port(struct uart_port *port, int flags)
++{
++ if ((flags & UART_CONFIG_TYPE) && (ubi32_uarttio_request_port(port) == 0)) {
++ port->type = PORT_UBI32_UARTTIO;
++ }
++}
++
++/*
++ * ubi32_uarttio_verify_port
++ * Verify the new serial_struct (for TIOCSSERIAL).
++ *
++ * The only change we allow are to the flags and type, and
++ * even then only between PORT_UBI32_UARTTIO and PORT_UNKNOWN
++ */
++static int ubi32_uarttio_verify_port(struct uart_port *port, struct serial_struct *ser)
++{
++ return 0;
++}
++
++static struct uart_ops ubi32_uarttio_pops = {
++ .tx_empty = ubi32_uarttio_tx_empty,
++ .set_mctrl = ubi32_uarttio_set_mctrl,
++ .get_mctrl = ubi32_uarttio_get_mctrl,
++ .stop_tx = ubi32_uarttio_stop_tx,
++ .start_tx = ubi32_uarttio_start_tx,
++ .stop_rx = ubi32_uarttio_stop_rx,
++ .enable_ms = ubi32_uarttio_enable_ms,
++ .break_ctl = ubi32_uarttio_break_ctl,
++ .startup = ubi32_uarttio_startup,
++ .shutdown = ubi32_uarttio_shutdown,
++ .set_termios = ubi32_uarttio_set_termios,
++ .type = ubi32_uarttio_type,
++ .release_port = ubi32_uarttio_release_port,
++ .request_port = ubi32_uarttio_request_port,
++ .config_port = ubi32_uarttio_config_port,
++ .verify_port = ubi32_uarttio_verify_port,
++};
++
++/*
++ * ubi32_uarttio_add_ports
++ */
++static int __init ubi32_uarttio_add_ports(void)
++{
++ int res = 0;
++ struct ubi32_uarttio_port *uup = uarttio_ports;
++ int i = 0;
++
++ for (i = 0; i < uarttio_nports; i++) {
++ /*
++ * Setup the GPIOs
++ */
++ res = gpio_request(uup->tx_pin, "ubi32_uarttio_tx");
++ if (res) {
++ printk(KERN_WARNING "Failed to request GPIO %d\n", uup->tx_pin);
++ res = -EBUSY;
++ goto next;
++ }
++
++ res = gpio_request(uup->rx_pin, "ubi32_uarttio_rx");
++ if (res) {
++ gpio_free(uup->tx_pin);
++ printk(KERN_WARNING "Failed to request GPIO %d\n", uup->rx_pin);
++ res = -EBUSY;
++ goto next;
++ }
++
++ res = uart_add_one_port(&ubi32_uarttio_uart_driver, &uup->port);
++ if (res) {
++ gpio_free(uup->rx_pin);
++ gpio_free(uup->tx_pin);
++ res = -ENODEV;
++ printk(KERN_WARNING "Failed to add port %d,%d\n", uup->tx_pin, uup->rx_pin);
++ goto next;
++ }
++ uup->added = 1;
++
++ /*
++ * Set the direction of the ports now, after we're sure that everything is ok
++ */
++ if (!uup->port_init) {
++ gpio_direction_output(uup->tx_pin, 1);
++ gpio_direction_input(uup->rx_pin);
++ }
++
++next:
++ uup++;
++ }
++ return res;
++}
++
++/*
++ * ubi32_uarttio_cleanup
++ */
++static void ubi32_uarttio_cleanup(void)
++{
++ struct ubi32_uarttio_port *uup;
++ int i;
++
++ /*
++ * Stop the hardware thread
++ */
++ if (uarttio_inst.regs) {
++ thread_disable(uarttio_inst.regs->thread);
++ }
++ if (uarttio_inst.irq_requested) {
++ free_irq(uarttio_inst.irq, NULL);
++ }
++
++ /*
++ * Get rid of the ports
++ */
++ uup = uarttio_inst.ports;
++ for (i = 0; i < uarttio_nports; i++) {
++ gpio_free(uup->tx_pin);
++ gpio_free(uup->rx_pin);
++ if (uup->added) {
++ uart_remove_one_port(&ubi32_uarttio_uart_driver, &uup->port);
++ }
++ uup++;
++ }
++
++ if (uarttio_inst.driver_registered) {
++ uart_unregister_driver(&ubi32_uarttio_uart_driver);
++ }
++}
++
++/*
++ * ubi32_uarttio_setup_port
++ * Setup a port in the TIO registers
++ */
++static int ubi32_uarttio_setup_port(int index,
++ struct uarttio_uart *uart,
++ unsigned int baud, unsigned int tx_pin,
++ unsigned int rx_pin)
++{
++ struct ubi32_uarttio_port *uup = &uarttio_ports[index];
++ void *tx_port = ubi_gpio_get_port(tx_pin);
++ void *rx_port = ubi_gpio_get_port(rx_pin);
++
++ /*
++ * Verify the ports are on chip
++ */
++ if (!tx_port || !rx_port) {
++ printk(KERN_WARNING "Invalid port(s) specified: %u or %u\n", tx_pin, rx_pin);
++ return -EINVAL;
++ }
++
++ uup->tx_pin = tx_pin;
++ uup->rx_pin = rx_pin;
++ uup->uart = uart;
++
++ /*
++ * Setup the port structure
++ */
++ uup->port.ops = &ubi32_uarttio_pops;
++ uup->port.line = index;
++ uup->port.iotype = UPIO_MEM;
++ uup->port.flags = UPF_BOOT_AUTOCONF;
++ uup->port.fifosize = uup->uart->tx_fifo_size;
++ uup->port.private_data = uup;
++
++ /*
++ * We share this IRQ across all ports
++ */
++ uup->port.irq = uarttio_inst.irq;
++
++ /*
++ * We really don't have a mem/map base but without these variables
++ * set, the serial_core won't startup.
++ */
++ uup->port.membase = (void __iomem *)uup;
++ uup->port.mapbase = (resource_size_t)uup;
++ spin_lock_init(&uup->port.lock);
++
++ /*
++ * Set up the hardware
++ */
++ uart->flags = UARTTIO_UART_FLAG_SET_RATE | UARTTIO_UART_FLAG_RESET;
++
++ uart->tx_port = (unsigned int)tx_port;
++ uart->tx_pin = gpio_pin_index(tx_pin);
++ uart->tx_bits = 8;
++ uart->tx_stop_bits = 1;
++
++ uart->rx_port = (unsigned int)rx_port;
++ uart->rx_pin = gpio_pin_index(rx_pin);
++ uart->rx_bits = 8;
++ uart->rx_stop_bits = 1;
++
++ uart->baud_rate = baud;
++
++ return 0;
++}
++
++enum ubi32_uarttio_parse_states {
++ UBI32_UARTTIO_PARSE_STATE_BAUD,
++ UBI32_UARTTIO_PARSE_STATE_TX_PIN,
++ UBI32_UARTTIO_PARSE_STATE_RX_PIN,
++ UBI32_UARTTIO_PARSE_STATE_HS,
++ UBI32_UARTTIO_PARSE_STATE_CTS_PIN,
++ UBI32_UARTTIO_PARSE_STATE_RTS_PIN,
++};
++
++/*
++ * ubi32_uarttio_parse_param
++ */
++static int ubi32_uarttio_parse_param(char *str)
++{
++ int res;
++ int i;
++ int baud = 0;
++ int tx_pin = 0;
++ int rx_pin = 0;
++ int hs = 0;
++ int cts_pin = 0;
++ int rts_pin = 0;
++ int nfound = 0;
++ enum ubi32_uarttio_parse_states state = UBI32_UARTTIO_PARSE_STATE_BAUD;
++ struct uarttio_uart *uart = uarttio_inst.regs->uarts;
++
++ /*
++ * Run though the options and generate the proper structures
++ */
++ res = get_option(&str, &i);
++ while ((res == 2) || (res == 1)) {
++ switch (state) {
++ case UBI32_UARTTIO_PARSE_STATE_BAUD:
++ /*
++ * If we are here and nfound > 0 then create the port
++ * based on the previous input
++ */
++ if (nfound) {
++ /*
++ * Create the port
++ */
++ if (ubi32_uarttio_setup_port(nfound - 1, uart, baud, tx_pin, rx_pin)) {
++ /*
++ * Port was invalid
++ */
++ goto fail;
++ } else {
++ printk(KERN_INFO "Serial port %d: tx=%d:rx=%d @ %d\n", nfound, tx_pin, rx_pin, baud);
++ uart++;
++ }
++ }
++
++ /*
++ * Reset the variables and go to the next state
++ */
++ hs = 0;
++ baud = i;
++ state = UBI32_UARTTIO_PARSE_STATE_TX_PIN;
++ break;
++
++ case UBI32_UARTTIO_PARSE_STATE_TX_PIN:
++ tx_pin = i;
++ state = UBI32_UARTTIO_PARSE_STATE_RX_PIN;
++ break;
++
++ case UBI32_UARTTIO_PARSE_STATE_RX_PIN:
++ rx_pin = i;
++ state = UBI32_UARTTIO_PARSE_STATE_HS;
++ break;
++
++ case UBI32_UARTTIO_PARSE_STATE_HS:
++ hs = i;
++ if (hs) {
++ state = UBI32_UARTTIO_PARSE_STATE_CTS_PIN;
++ break;
++ }
++
++ if (nfound == uarttio_inst.regs->max_uarts) {
++ printk(KERN_WARNING "Maximum number of serial ports reached\n");
++ goto done;
++ }
++ nfound++;
++ state = UBI32_UARTTIO_PARSE_STATE_BAUD;
++ break;
++
++ case UBI32_UARTTIO_PARSE_STATE_CTS_PIN:
++ cts_pin = i;
++ state = UBI32_UARTTIO_PARSE_STATE_RTS_PIN;
++ break;
++
++ case UBI32_UARTTIO_PARSE_STATE_RTS_PIN:
++ rts_pin = i;
++
++ if (nfound == uarttio_inst.regs->max_uarts) {
++ printk(KERN_WARNING "Maximum number of serial ports reached\n");
++ goto done;
++ }
++ nfound++;
++ state = UBI32_UARTTIO_PARSE_STATE_BAUD;
++ break;
++ }
++ res = get_option(&str, &i);
++ }
++
++ if ((res > 2) || state != UBI32_UARTTIO_PARSE_STATE_BAUD) {
++ printk(KERN_WARNING "Parameter syntax error.\n");
++ res = -EINVAL;
++ goto fail;
++ }
++
++ /*
++ * Create the final port
++ */
++ if (ubi32_uarttio_setup_port(nfound - 1, uart, baud, tx_pin, rx_pin)) {
++ goto fail;
++ }
++ printk(KERN_INFO "Serial port %d: tx=%d:rx=%d @ %d\n", nfound, tx_pin, rx_pin, baud);
++
++done:
++ uarttio_nports = nfound;
++
++ return nfound ? 0 : -ENODEV;
++
++fail:
++ /*
++ * Reset the ports
++ */
++ uart = uarttio_inst.regs->uarts;
++ for (i = 0; i < uarttio_inst.regs->max_uarts; i++) {
++ uart->flags = 0;
++ uart++;
++ }
++
++ return res;
++}
++
++/*
++ * ubi32_uarttio_probe
++ */
++static int ubi32_uarttio_probe(void)
++{
++ int ret;
++ struct uarttio_node *uart_node;
++ char *str = utio_ports_param;
++ static int probed;
++
++ /*
++ * We only want to be probed once, we could be probed twice
++ * for example if we are used as a console
++ */
++ if (probed) {
++ return 0;
++ }
++ probed = 1;
++
++ /*
++ * Extract the TIO name from the setup string
++ */
++ while (*str) {
++ if (*str == ',') {
++ *str++ = 0;
++ break;
++ }
++ str++;
++ }
++
++ if (!*str) {
++ return -EINVAL;
++ }
++
++ uart_node = (struct uarttio_node *)devtree_find_node(utio_ports_param);
++ if (!uart_node) {
++ return -ENODEV;
++ }
++
++ uarttio_inst.irq = uart_node->dn.recvirq;
++ uarttio_inst.regs = uart_node->regs;
++
++ /*
++ * Parse module parameters.
++ */
++ ret = ubi32_uarttio_parse_param(str);
++ if (ret != 0) {
++ goto fail;
++ }
++
++ ubi32_uarttio_uart_driver.nr = uarttio_nports;
++
++ return 0;
++
++fail:
++ ubi32_uarttio_cleanup();
++ return ret;
++}
++
++#if defined(CONFIG_SERIAL_UBI32_UARTTIO_CONSOLE)
++/*
++ * ubi32_uarttio_console_setup
++ */
++static int __init ubi32_uarttio_console_setup(struct console *co, char *options)
++{
++ int baud;
++ int bits = 8;
++ int parity = 'n';
++ int flow = 'n';
++ struct ubi32_uarttio_port *uup;
++
++ /*
++ * Check whether an invalid uart number has been specified, and
++ * if so, search for the first available port that does have
++ * console support.
++ */
++ if (co->index == -1 || co->index >= uarttio_nports) {
++ co->index = 0;
++ }
++ uup = &uarttio_ports[co->index];
++ baud = uup->uart->baud_rate;
++ uup->uart->flags |= UARTTIO_UART_FLAG_ENABLED;
++
++ /*
++ * Setup the GPIOs
++ * We have to use the direct interface because the gpio
++ * subsystem is not available at this point.
++ */
++ uup->port_init = 1;
++ UBICOM32_GPIO_SET_PIN_HIGH(uup->tx_pin);
++ UBICOM32_GPIO_SET_PIN_OUTPUT(uup->tx_pin);
++ UBICOM32_GPIO_SET_PIN_INPUT(uup->rx_pin);
++
++ /*
++ * Start the thread
++ */
++ thread_enable(uarttio_inst.regs->thread);
++
++ /*
++ * Process options
++ */
++ if (options) {
++ uart_parse_options(options, &baud, &parity, &bits, &flow);
++ if (ubi32_uarttio_set_baud(uup, baud)) {
++ baud = uup->uart->current_baud_rate;
++ }
++ }
++
++ return uart_set_options(&uup->port, co, baud, 'n', 8, 'n');
++}
++
++/*
++ * ubi32_uarttio_console_putchar
++ */
++static void ubi32_uarttio_console_putchar(struct uart_port *port, int ch)
++{
++ struct ubi32_uarttio_port *uup = port->private_data;
++
++ while (ubi32_uarttio_put_char(uup->uart, ch)) {
++ cpu_relax();
++ }
++}
++
++/*
++ * ubi32_uarttio_console_write
++ * Interrupts are disabled on entering
++ */
++static void ubi32_uarttio_console_write(struct console *co, const char *s, unsigned int count)
++{
++ struct uart_port *port = &(uarttio_ports[co->index].port);
++ unsigned long flags = 0;
++
++ spin_lock_irqsave(&port->lock, flags);
++ uart_console_write(port, s, count, ubi32_uarttio_console_putchar);
++ spin_unlock_irqrestore(&port->lock, flags);
++}
++
++static struct console ubi32_uarttio_console = {
++ .name = UBI32_UARTTIO_NAME,
++ .write = ubi32_uarttio_console_write,
++ .device = uart_console_device,
++ .setup = ubi32_uarttio_console_setup,
++ .flags = CON_PRINTBUFFER,
++ .index = -1,
++ .data = &ubi32_uarttio_uart_driver,
++};
++
++static int __init ubi32_uarttio_console_init(void)
++{
++ int res;
++
++ res = ubi32_uarttio_probe();
++ if (res) {
++ return res;
++ }
++
++ register_console(&ubi32_uarttio_console);
++ return 0;
++}
++console_initcall(ubi32_uarttio_console_init);
++#endif /* CONFIG_SERIAL_UBI32_UARTTIO_CONSOLE */
++
++/*
++ * ubi32_serial_suspend
++ */
++static int ubi32_uarttio_suspend(struct platform_device *pdev, pm_message_t state)
++{
++ int i;
++ for (i = 0; i < uarttio_nports; i++) {
++ uart_suspend_port(&ubi32_uarttio_uart_driver, &uarttio_ports[i].port);
++ }
++
++ return 0;
++}
++
++/*
++ * ubi32_serial_resume
++ */
++static int ubi32_uarttio_resume(struct platform_device *pdev)
++{
++ int i;
++ for (i = 0; i < uarttio_nports; i++) {
++ uart_resume_port(&ubi32_uarttio_uart_driver, &uarttio_ports[i].port);
++ }
++
++ return 0;
++}
++
++/*
++ * ubi32_uarttio_remove
++ */
++static int __devexit ubi32_uarttio_remove(struct platform_device *pdev)
++{
++ ubi32_uarttio_cleanup();
++
++ uart_unregister_driver(&ubi32_uarttio_uart_driver);
++
++ return 0;
++}
++
++static struct platform_driver ubi32_uarttio_platform_driver = {
++ .remove = __devexit_p(ubi32_uarttio_remove),
++ .suspend = ubi32_uarttio_suspend,
++ .resume = ubi32_uarttio_resume,
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++};
++
++#ifndef MODULE
++/*
++ * Called at boot time.
++ *
++ * uarttio=TIONAME,(baud,tx_pin,rx_pin,handshake[,cts_pin,rts_pin],...)
++ * TIONAME is the name of the devtree node which describes the UARTTIO
++ * pin is the index of the pin, i.e. PA4 is 5 [(port * 32) + pin]
++ * handshake = 1 to enable handshaking, provide cts_pin, rts_pin (UNSUPPORTED)
++ * handshake = 0 to disable handshaking, do not provide cts_pin, rts_pin
++ * Ex: uarttio=UARTTIO,57600,7,6,0,9600,8,9,0
++ */
++static int __init ubi32_uarttio_setup(char *str)
++{
++ strncpy(utio_ports_param, str, UBI32_UARTTIO_MAX_PARAM_LEN);
++ utio_ports_param[UBI32_UARTTIO_MAX_PARAM_LEN - 1] = 0;
++ return 1;
++}
++__setup("uarttio=", ubi32_uarttio_setup);
++#endif
++
++/*
++ * ubi32_uarttio_init
++ */
++static int __init ubi32_uarttio_init(void)
++{
++ int ret;
++ int i;
++
++ ret = ubi32_uarttio_probe();
++ if (ret) {
++ return ret;
++ }
++
++ /*
++ * Request the IRQ (do it here since many ports share the same IRQ)
++ */
++ ret = request_irq(uarttio_inst.irq, ubi32_uarttio_isr, IRQF_DISABLED, DRIVER_NAME, NULL);
++ if (ret != 0) {
++ printk(KERN_WARNING "Could not request IRQ %d\n", uarttio_inst.irq);
++ goto fail;
++ }
++ uarttio_inst.irq_requested = 1;
++
++ /*
++ * Register the UART driver and add the ports
++ */
++ ret = uart_register_driver(&ubi32_uarttio_uart_driver);
++ if (ret != 0) {
++ goto fail;
++ }
++ uarttio_inst.driver_registered = 1;
++
++ ret = ubi32_uarttio_add_ports();
++ if (ret != 0) {
++ ubi32_uarttio_cleanup();
++ return ret;
++ }
++
++ /*
++ * Start the thread
++ */
++ thread_enable(uarttio_inst.regs->thread);
++
++ for (i = 0; i < uarttio_nports; i++) {
++ pr_info("Serial: Ubicom32 uarttio #%d: tx:%d rx:%d baud:%d\n",
++ i, uarttio_ports[i].tx_pin, uarttio_ports[i].rx_pin,
++ uarttio_ports[i].uart->current_baud_rate);
++ }
++ pr_info("Serial: Ubicom32 uarttio started on thread:%d irq:%d\n", uarttio_inst.regs->thread, uarttio_inst.irq);
++
++ return ret;
++
++fail:
++ ubi32_uarttio_cleanup();
++ return ret;
++}
++module_init(ubi32_uarttio_init);
++
++/*
++ * ubi32_uarttio_exit
++ */
++static void __exit ubi32_uarttio_exit(void)
++{
++ platform_driver_unregister(&ubi32_uarttio_platform_driver);
++}
++module_exit(ubi32_uarttio_exit);
++
++module_param_string(ports, utio_ports_param, sizeof(utio_ports_param), 0444);
++MODULE_PARM_DESC(ports, "Sets the ports to allocate: ports=TIONAME,(baud,txpin,rxpin,handshake[,ctspin,rtspin],...)\n"
++ " TIONAME is the name of the devtree node which describes the UARTTIO\n"
++ " pin is the index of the pin, i.e. PA4 is 5 [(port * 32) + pin]\n"
++ " handshake = 1 to enable handshaking, provide ctspin, rtspin (UNSUPPORTED)\n"
++ " handshake = 0 to disable handshaking, do not provide ctspin, rtspin\n"
++ " Ex: ports=UARTTIO,57600,7,6,0,9600,8,9,0\n");
++MODULE_AUTHOR("Patrick Tjin <pat.tjin@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom serial virtual peripherial driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_CHARDEV_MAJOR(UBI32_UARTTIO_MAJOR);
++MODULE_ALIAS("platform:" DRIVER_NAME);
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -196,6 +196,15 @@ config SPI_S3C24XX
+ help
+ SPI driver for Samsung S3C24XX series ARM SoCs
+
++config SPI_UBICOM32_GPIO
++ tristate "Ubicom32 SPI over GPIO"
++ depends on SPI_MASTER && UBICOM32 && EXPERIMENTAL
++ select SPI_BITBANG
++ select HAS_DMA
++ help
++ SPI driver for the Ubicom32 architecture using
++ GPIO lines to provide the SPI bus.
++
+ config SPI_S3C24XX_GPIO
+ tristate "Samsung S3C24XX series SPI by GPIO"
+ depends on ARCH_S3C2410 && EXPERIMENTAL
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -27,6 +27,7 @@ obj-$(CONFIG_SPI_ORION) += orion_spi.o
+ obj-$(CONFIG_SPI_MPC52xx_PSC) += mpc52xx_psc_spi.o
+ obj-$(CONFIG_SPI_MPC83xx) += spi_mpc83xx.o
+ obj-$(CONFIG_SPI_S3C24XX_GPIO) += spi_s3c24xx_gpio.o
++obj-$(CONFIG_SPI_UBICOM32_GPIO) += spi_ubicom32_gpio.o
+ obj-$(CONFIG_SPI_S3C24XX) += spi_s3c24xx.o
+ obj-$(CONFIG_SPI_TXX9) += spi_txx9.o
+ obj-$(CONFIG_SPI_XILINX) += xilinx_spi.o
+--- /dev/null
++++ b/drivers/spi/spi_ubicom32_gpio.c
+@@ -0,0 +1,268 @@
++/*
++ * drivers/spi_spi_ubicom32_gpio.c
++ * Ubicom32 GPIO based SPI driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/spinlock.h>
++#include <linux/workqueue.h>
++#include <linux/platform_device.h>
++
++#include <linux/spi/spi.h>
++#include <linux/spi/spi_bitbang.h>
++
++#include <linux/gpio.h>
++
++#include <asm/ip5000.h>
++#include <asm/ubicom32-spi-gpio.h>
++
++#define DRIVER_NAME "ubicom32-spi-gpio"
++
++struct ubicom32_spi_gpio {
++ struct spi_bitbang bitbang;
++
++ struct ubicom32_spi_gpio_platform_data *pdata;
++
++ struct platform_device *dev;
++};
++
++/*
++ * The following 4 functions are used by EXPAND_BITBANG_TXRX to bitbang the data out.
++ */
++static inline void setsck(struct spi_device *dev, int on)
++{
++ struct ubicom32_spi_gpio *usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(dev->master);
++ gpio_set_value(usg->pdata->pin_clk, on ? 1 : 0);
++}
++
++static inline void setmosi(struct spi_device *dev, int on)
++{
++ struct ubicom32_spi_gpio *usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(dev->master);
++ gpio_set_value(usg->pdata->pin_mosi, on ? 1 : 0);
++}
++
++static inline u32 getmiso(struct spi_device *dev)
++{
++ struct ubicom32_spi_gpio *usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(dev->master);
++ return gpio_get_value(usg->pdata->pin_miso) ? 1 : 0;
++}
++
++#define spidelay(x) ndelay(x)
++
++#define EXPAND_BITBANG_TXRX
++#include <linux/spi/spi_bitbang.h>
++
++/*
++ * ubicom32_spi_gpio_txrx_mode0
++ */
++static u32 ubicom32_spi_gpio_txrx_mode0(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits)
++{
++ return bitbang_txrx_be_cpha0(spi, nsecs, 0, word, bits);
++}
++
++/*
++ * ubicom32_spi_gpio_txrx_mode1
++ */
++static u32 ubicom32_spi_gpio_txrx_mode1(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits)
++{
++ return bitbang_txrx_be_cpha1(spi, nsecs, 0, word, bits);
++}
++
++/*
++ * ubicom32_spi_gpio_txrx_mode2
++ */
++static u32 ubicom32_spi_gpio_txrx_mode2(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits)
++{
++ return bitbang_txrx_be_cpha0(spi, nsecs, 1, word, bits);
++}
++
++/*
++ * ubicom32_spi_gpio_txrx_mode3
++ */
++static u32 ubicom32_spi_gpio_txrx_mode3(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits)
++{
++ return bitbang_txrx_be_cpha1(spi, nsecs, 1, word, bits);
++}
++
++/*
++ * ubicom32_spi_gpio_chipselect
++ */
++static void ubicom32_spi_gpio_chipselect(struct spi_device *dev, int value)
++{
++ struct ubicom32_spi_gpio_controller_data *cd = (struct ubicom32_spi_gpio_controller_data *)dev->controller_data;
++ unsigned int cs_polarity = dev->mode & SPI_CS_HIGH ? 1 : 0;
++
++ if (value == BITBANG_CS_ACTIVE) {
++ gpio_set_value(cd->pin_cs, cs_polarity);
++ return;
++ }
++ gpio_set_value(cd->pin_cs, !cs_polarity);
++}
++
++/*
++ * ubicom32_spi_gpio_probe
++ */
++static int ubicom32_spi_gpio_probe(struct platform_device *dev)
++{
++ struct ubicom32_spi_gpio_platform_data *pdata;
++ struct spi_master *master;
++ struct ubicom32_spi_gpio *usg;
++ int ret;
++
++ master = spi_alloc_master(&dev->dev, sizeof(struct ubicom32_spi_gpio));
++ if (master == NULL) {
++ dev_err(&dev->dev, "failed to allocate spi master\n");
++ ret = -ENOMEM;
++ goto err;
++ }
++
++ usg = (struct ubicom32_spi_gpio *)spi_master_get_devdata(master);
++
++ platform_set_drvdata(dev, usg);
++
++ /*
++ * Copy in the platform data
++ */
++ pdata = dev->dev.platform_data;
++ usg->pdata = dev->dev.platform_data;
++
++ /*
++ * Request the GPIO lines
++ */
++ ret = gpio_request(pdata->pin_mosi, "spi-mosi");
++ if (ret) {
++ dev_err(&dev->dev, "Failed to allocate spi-mosi GPIO\n");
++ goto err;
++ }
++
++ ret = gpio_request(pdata->pin_miso, "spi-miso");
++ if (ret) {
++ dev_err(&dev->dev, "Failed to allocate spi-miso GPIO\n");
++ goto err_nomiso;
++ }
++
++ ret = gpio_request(pdata->pin_clk, "spi-clk");
++ if (ret) {
++ dev_err(&dev->dev, "Failed to allocate spi-clk GPIO\n");
++ goto err_noclk;
++ }
++
++ /*
++ * Setup spi-bitbang adaptor
++ */
++ usg->bitbang.flags |= SPI_CS_HIGH;
++ usg->bitbang.master = spi_master_get(master);
++ usg->bitbang.master->bus_num = pdata->bus_num;
++ usg->bitbang.master->num_chipselect = pdata->num_chipselect;
++ usg->bitbang.chipselect = ubicom32_spi_gpio_chipselect;
++
++ usg->bitbang.txrx_word[SPI_MODE_0] = ubicom32_spi_gpio_txrx_mode0;
++ usg->bitbang.txrx_word[SPI_MODE_1] = ubicom32_spi_gpio_txrx_mode1;
++ usg->bitbang.txrx_word[SPI_MODE_2] = ubicom32_spi_gpio_txrx_mode2;
++ usg->bitbang.txrx_word[SPI_MODE_3] = ubicom32_spi_gpio_txrx_mode3;
++
++ /*
++ * Setup the GPIO pins
++ */
++ gpio_direction_output(pdata->pin_clk, pdata->clk_default);
++ gpio_direction_output(pdata->pin_mosi, 0);
++ gpio_direction_input(pdata->pin_miso);
++
++ /*
++ * Ready to go
++ */
++ ret = spi_bitbang_start(&usg->bitbang);
++ if (ret) {
++ goto err_no_bitbang;
++ }
++
++ return 0;
++
++err_no_bitbang:
++ spi_master_put(usg->bitbang.master);
++
++ gpio_free(pdata->pin_clk);
++
++err_noclk:
++ gpio_free(pdata->pin_miso);
++
++err_nomiso:
++ gpio_free(pdata->pin_mosi);
++
++err:
++ return ret;
++}
++
++/*
++ * ubicom32_spi_gpio_remove
++ */
++static int ubicom32_spi_gpio_remove(struct platform_device *dev)
++{
++ struct ubicom32_spi_gpio *sp = platform_get_drvdata(dev);
++
++ spi_bitbang_stop(&sp->bitbang);
++ spi_master_put(sp->bitbang.master);
++
++ return 0;
++}
++
++/*
++ * Work with hotplug and coldplug
++ */
++MODULE_ALIAS("platform:ubicom32_spi_gpio");
++
++static struct platform_driver ubicom32_spi_gpio_drv = {
++ .probe = ubicom32_spi_gpio_probe,
++ .remove = ubicom32_spi_gpio_remove,
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++};
++
++/*
++ * ubicom32_spi_gpio_init
++ */
++static int __init ubicom32_spi_gpio_init(void)
++{
++ return platform_driver_register(&ubicom32_spi_gpio_drv);
++}
++
++/*
++ * ubicom32_spi_gpio_exit
++ */
++static void __exit ubicom32_spi_gpio_exit(void)
++{
++ platform_driver_unregister(&ubicom32_spi_gpio_drv);
++}
++
++module_init(ubicom32_spi_gpio_init);
++module_exit(ubicom32_spi_gpio_exit);
++
++MODULE_DESCRIPTION("Ubicom32 SPI-GPIO Driver");
++MODULE_AUTHOR("Pat Tjin, <@ubicom.com>");
++MODULE_LICENSE("GPL");
+--- a/drivers/uio/Kconfig
++++ b/drivers/uio/Kconfig
+@@ -71,4 +71,12 @@ config UIO_SERCOS3
+
+ If you compile this as a module, it will be called uio_sercos3.
+
++config UIO_UBICOM32RING
++ tristate "Ubicom32 Ring Buffer driver"
++ default n
++ help
++ Userspace I/O interface for a Ubicom32 Ring Buffer.
++
++ If you compile this as a module, it will be called uio_ubicom32ring
++
+ endif
+--- a/drivers/uio/Makefile
++++ b/drivers/uio/Makefile
+@@ -4,3 +4,4 @@ obj-$(CONFIG_UIO_PDRV) += uio_pdrv.o
+ obj-$(CONFIG_UIO_PDRV_GENIRQ) += uio_pdrv_genirq.o
+ obj-$(CONFIG_UIO_SMX) += uio_smx.o
+ obj-$(CONFIG_UIO_SERCOS3) += uio_sercos3.o
++obj-$(CONFIG_UIO_UBICOM32RING) += uio_ubicom32ring.o
+--- /dev/null
++++ b/drivers/uio/uio_ubicom32ring.c
+@@ -0,0 +1,289 @@
++/*
++ * drivers/uio/uio_ubicom32ring.c
++ *
++ * Userspace I/O platform driver for Ubicom32 ring buffers
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * Based on uio_ubicom32ring.c by Magnus Damm
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/platform_device.h>
++#include <linux/uio_driver.h>
++#include <linux/spinlock.h>
++#include <linux/bitops.h>
++#include <linux/interrupt.h>
++#include <linux/stringify.h>
++
++#include <asm/ip5000.h>
++#include <asm/ubicom32ring.h>
++
++#define DRIVER_NAME "uio_ubicom32ring"
++
++struct uio_ubicom32ring_data {
++ struct uio_info *uioinfo;
++
++ struct uio_ubicom32ring_regs *regs;
++
++ /*
++ * IRQ used to kick the ring buffer
++ */
++ int irq_tx;
++ int irq_rx;
++
++ spinlock_t lock;
++
++ unsigned long flags;
++
++ char name[0];
++};
++
++static irqreturn_t uio_ubicom32ring_handler(int irq, struct uio_info *dev_info)
++{
++ struct uio_ubicom32ring_data *priv = dev_info->priv;
++
++ /* Just disable the interrupt in the interrupt controller, and
++ * remember the state so we can allow user space to enable it later.
++ */
++
++ if (!test_and_set_bit(0, &priv->flags))
++ disable_irq_nosync(irq);
++
++ return IRQ_HANDLED;
++}
++
++static int uio_ubicom32ring_irqcontrol(struct uio_info *dev_info, s32 irq_on)
++{
++ struct uio_ubicom32ring_data *priv = dev_info->priv;
++ unsigned long flags;
++
++ /* Allow user space to enable and disable the interrupt
++ * in the interrupt controller, but keep track of the
++ * state to prevent per-irq depth damage.
++ *
++ * Serialize this operation to support multiple tasks.
++ */
++
++ spin_lock_irqsave(&priv->lock, flags);
++
++ if (irq_on & 2) {
++ /*
++ * Kick the ring buffer (if we can)
++ */
++ if (priv->irq_tx != 0xFF) {
++ ubicom32_set_interrupt(priv->irq_tx);
++ }
++ }
++
++ if (priv->irq_rx != 0xFF) {
++ if (irq_on & 1) {
++ if (test_and_clear_bit(0, &priv->flags))
++ enable_irq(dev_info->irq);
++ } else {
++ if (!test_and_set_bit(0, &priv->flags))
++ disable_irq(dev_info->irq);
++ }
++ }
++
++ spin_unlock_irqrestore(&priv->lock, flags);
++
++ return 0;
++}
++
++static int uio_ubicom32ring_probe(struct platform_device *pdev)
++{
++ struct uio_info *uioinfo;
++ struct uio_mem *uiomem;
++ struct uio_ubicom32ring_data *priv;
++ struct uio_ubicom32ring_regs *regs;
++ struct resource *mem_resource;
++ struct resource *irqtx_resource;
++ struct resource *irqrx_resource;
++ int ret = -EINVAL;
++ int i;
++
++ uioinfo = kzalloc(sizeof(struct uio_info), GFP_KERNEL);
++ if (!uioinfo) {
++ dev_err(&pdev->dev, "unable to kmalloc\n");
++ return -ENOMEM;
++ }
++
++ /*
++ * Allocate private data with some string space after
++ */
++ i = sizeof(DRIVER_NAME) + 1;
++ i += pdev->dev.platform_data ? strlen(pdev->dev.platform_data) : 0;
++ priv = kzalloc(sizeof(struct uio_ubicom32ring_data) + i, GFP_KERNEL);
++ if (!priv) {
++ dev_err(&pdev->dev, "unable to kmalloc\n");
++ kfree(uioinfo);
++ return -ENOMEM;
++ }
++
++ strcpy(priv->name, DRIVER_NAME ":");
++ if (pdev->dev.platform_data) {
++ strcat(priv->name, pdev->dev.platform_data);
++ }
++ uioinfo->priv = priv;
++ uioinfo->name = priv->name;
++ uioinfo->version = "0.1";
++
++ priv->uioinfo = uioinfo;
++ spin_lock_init(&priv->lock);
++ priv->flags = 0; /* interrupt is enabled to begin with */
++
++ /*
++ * Get our resources, the IRQ_TX and IRQ_RX are optional.
++ */
++ priv->irq_tx = 0xFF;
++ irqtx_resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
++ if (irqtx_resource) {
++ priv->irq_tx = irqtx_resource->start;
++ }
++
++ uioinfo->irq = -1;
++ priv->irq_rx = 0xFF;
++ irqrx_resource = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
++ if (irqrx_resource) {
++ priv->irq_rx = irqrx_resource->start;
++ uioinfo->irq = priv->irq_rx;
++ uioinfo->handler = uio_ubicom32ring_handler;
++ }
++
++ mem_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ if (!mem_resource || !mem_resource->start) {
++ dev_err(&pdev->dev, "No valid memory resource found\n");
++ ret = -ENODEV;
++ goto fail;
++ }
++ regs = (struct uio_ubicom32ring_regs *)mem_resource->start;
++ priv->regs = regs;
++
++ if (regs->version != UIO_UBICOM32RING_REG_VERSION) {
++ dev_err(&pdev->dev, "version %d not supported\n", regs->version);
++ ret = -ENODEV;
++ goto fail;
++ }
++
++ /*
++ * First range is the shared register space, if we have any
++ */
++ uiomem = &uioinfo->mem[0];
++ if (regs->regs_size) {
++ uiomem->memtype = UIO_MEM_PHYS;
++ uiomem->addr = (u32_t)regs->regs;
++ uiomem->size = regs->regs_size;
++ ++uiomem;
++ dev_info(&pdev->dev, "regs:%p (%u) / rings: %d found\n", regs->regs, regs->regs_size, regs->num_rings);
++ } else {
++ dev_info(&pdev->dev, "rings: %d found\n", regs->num_rings);
++ }
++
++ /*
++ * The rest of the range correspond to the rings
++ */
++ for (i = 0; i < regs->num_rings; i++) {
++ dev_info(&pdev->dev, "\t%d: entries:%d ring:%p\n",
++ i, regs->rings[i]->entries, &(regs->rings[i]->ring));
++ if (uiomem >= &uioinfo->mem[MAX_UIO_MAPS]) {
++ dev_warn(&pdev->dev, "device has more than "
++ __stringify(MAX_UIO_MAPS)
++ " I/O memory resources.\n");
++ break;
++ }
++
++ uiomem->memtype = UIO_MEM_PHYS;
++ uiomem->addr = (u32_t)&(regs->rings[i]->head);
++ uiomem->size = (regs->rings[i]->entries * sizeof(u32_t)) +
++ sizeof(struct uio_ubicom32ring_desc);
++ ++uiomem;
++ }
++
++ while (uiomem < &uioinfo->mem[MAX_UIO_MAPS]) {
++ uiomem->size = 0;
++ ++uiomem;
++ }
++
++ /* This driver requires no hardware specific kernel code to handle
++ * interrupts. Instead, the interrupt handler simply disables the
++ * interrupt in the interrupt controller. User space is responsible
++ * for performing hardware specific acknowledge and re-enabling of
++ * the interrupt in the interrupt controller.
++ *
++ * Interrupt sharing is not supported.
++ */
++ uioinfo->irq_flags = IRQF_DISABLED;
++ uioinfo->irqcontrol = uio_ubicom32ring_irqcontrol;
++
++ ret = uio_register_device(&pdev->dev, priv->uioinfo);
++ if (ret) {
++ dev_err(&pdev->dev, "unable to register uio device\n");
++ goto fail;
++ }
++
++ platform_set_drvdata(pdev, priv);
++
++ dev_info(&pdev->dev, "'%s' using irq: rx %d tx %d, regs %p\n",
++ priv->name, priv->irq_rx, priv->irq_tx, priv->regs);
++
++ return 0;
++
++fail:
++ kfree(uioinfo);
++ kfree(priv);
++ return ret;
++}
++
++static int uio_ubicom32ring_remove(struct platform_device *pdev)
++{
++ struct uio_ubicom32ring_data *priv = platform_get_drvdata(pdev);
++
++ uio_unregister_device(priv->uioinfo);
++ kfree(priv->uioinfo);
++ kfree(priv);
++ return 0;
++}
++
++static struct platform_driver uio_ubicom32ring = {
++ .probe = uio_ubicom32ring_probe,
++ .remove = uio_ubicom32ring_remove,
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++};
++
++static int __init uio_ubicom32ring_init(void)
++{
++ return platform_driver_register(&uio_ubicom32ring);
++}
++
++static void __exit uio_ubicom32ring_exit(void)
++{
++ platform_driver_unregister(&uio_ubicom32ring);
++}
++
++module_init(uio_ubicom32ring_init);
++module_exit(uio_ubicom32ring_exit);
++
++MODULE_AUTHOR("Patrick Tjin");
++MODULE_DESCRIPTION("Userspace I/O driver for Ubicom32 ring buffers");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:" DRIVER_NAME);
++
+--- a/drivers/usb/gadget/epautoconf.c
++++ b/drivers/usb/gadget/epautoconf.c
+@@ -154,6 +154,10 @@ ep_matches (
+ /* configure your hardware with enough buffering!! */
+ }
+ break;
++
++ case USB_ENDPOINT_XFER_BULK:
++ if ((gadget->is_dualspeed) && (ep->maxpacket < 512))
++ return 0;
+ }
+
+ /* MATCH!! */
+@@ -174,7 +178,7 @@ ep_matches (
+ return 0;
+ desc->bEndpointAddress |= epnum;
+ }
+-
++
+ /* report (variable) full speed bulk maxpacket */
+ if (USB_ENDPOINT_XFER_BULK == type) {
+ int size = ep->maxpacket;
+--- a/drivers/usb/Kconfig
++++ b/drivers/usb/Kconfig
+@@ -22,6 +22,7 @@ config USB_ARCH_HAS_HCD
+ default y if PCMCIA && !M32R # sl811_cs
+ default y if ARM # SL-811
+ default y if SUPERH # r8a66597-hcd
++ default y if UBICOM32 # Ubicom's onchip USB Duial role controller
+ default PCI
+
+ # many non-PCI SOC chips embed OHCI
+--- a/drivers/usb/musb/Kconfig
++++ b/drivers/usb/musb/Kconfig
+@@ -11,7 +11,7 @@ config USB_MUSB_HDRC
+ depends on (USB || USB_GADGET) && HAVE_CLK
+ depends on !SUPERH
+ select TWL4030_USB if MACH_OMAP_3430SDP
+- tristate 'Inventra Highspeed Dual Role Controller (TI, ...)'
++ tristate 'Inventra Highspeed Dual Role Controller (TI, Ubicom, ...)'
+ help
+ Say Y here if your system has a dual role high speed USB
+ controller based on the Mentor Graphics silicon IP. Then
+--- a/drivers/usb/musb/Makefile
++++ b/drivers/usb/musb/Makefile
+@@ -22,6 +22,10 @@ ifeq ($(CONFIG_ARCH_OMAP3430),y)
+ musb_hdrc-objs += omap2430.o
+ endif
+
++ifeq ($(CONFIG_UBICOM32), y)
++ musb_hdrc-objs += ubi32_usb.o
++endif
++
+ ifeq ($(CONFIG_USB_GADGET_MUSB_HDRC),y)
+ musb_hdrc-objs += musb_gadget_ep0.o musb_gadget.o
+ endif
+--- a/drivers/usb/musb/musb_core.c
++++ b/drivers/usb/musb/musb_core.c
+@@ -105,6 +105,13 @@
+ #include <asm/mach-types.h>
+ #endif
+
++#ifdef CONFIG_UBICOM32
++#include <asm/ip5000.h>
++#include <asm/ubicom32-tio.h>
++extern void ubi32_usb_init(void);
++extern void ubi32_usb_int_clr(void);
++#endif
++
+ #include "musb_core.h"
+
+
+@@ -147,7 +154,7 @@ static inline struct musb *dev_to_musb(s
+ }
+
+ /*-------------------------------------------------------------------------*/
+-
++#ifndef CONFIG_UBICOM32
+ #ifndef CONFIG_USB_TUSB6010
+ /*
+ * Load an endpoint's FIFO
+@@ -226,8 +233,38 @@ void musb_read_fifo(struct musb_hw_ep *h
+ readsb(fifo, dst, len);
+ }
+ }
++#endif /* T6010 */
++#else /* UBICOM */
++
++/*
++ * Load an endpoint's FIFO
++ */
++void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 wCount, const u8 *pSource)
++{
++ void __iomem *fifo = hw_ep->fifo;
++
++ prefetch((u8 *)pSource);
++
++ DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
++ 'T', hw_ep->epnum, fifo, wCount, pSource);
++
++ usb_tio_write_fifo((u32)fifo, (u32)pSource, wCount);
++
++}
+
+-#endif /* normal PIO */
++
++/*
++ * Unload an endpoint's FIFO
++ */
++void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 wCount, u8 *pDest)
++{
++
++ void __iomem *fifo = hw_ep->fifo;
++ DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
++ 'R', hw_ep->epnum, fifo, wCount, pDest);
++ usb_tio_read_fifo((u32)fifo, (u32)pDest, wCount);
++}
++#endif /* CONFIG_UBICOM32 */
+
+
+ /*-------------------------------------------------------------------------*/
+@@ -872,12 +909,19 @@ void musb_start(struct musb *musb)
+ musb_writeb(regs, MUSB_TESTMODE, 0);
+
+ /* put into basic highspeed mode and start session */
++#ifndef CONFIG_UBICOM32
+ musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE
+ | MUSB_POWER_SOFTCONN
+ | MUSB_POWER_HSENAB
+ /* ENSUSPEND wedges tusb */
+ /* | MUSB_POWER_ENSUSPEND */
+ );
++#else
++ musb_writeb(regs, MUSB_POWER, MUSB_POWER_HSENAB
++ /* ENSUSPEND wedges tusb */
++ /* | MUSB_POWER_ENSUSPEND */
++ );
++#endif
+
+ musb->is_active = 0;
+ devctl = musb_readb(regs, MUSB_DEVCTL);
+@@ -1079,6 +1123,7 @@ static struct fifo_cfg __initdata mode_4
+ };
+
+
++#ifndef CONFIG_UBICOM32
+ /*
+ * configure a fifo; for non-shared endpoints, this may be called
+ * once for a tx fifo and once for an rx fifo.
+@@ -1238,7 +1283,7 @@ static int __init ep_config_from_table(s
+
+ return 0;
+ }
+-
++#endif /* CONFIG_UBICOM32 */
+
+ /*
+ * ep_config_from_hw - when MUSB_C_DYNFIFO_DEF is false
+@@ -1253,13 +1298,23 @@ static int __init ep_config_from_hw(stru
+ DBG(2, "<== static silicon ep config\n");
+
+ /* FIXME pick up ep0 maxpacket size */
++#ifdef CONFIG_UBICOM32
++ /* set ep0 to shared_fifo, otherwise urb will be put to out_qh but ep0_irq try to get the urb from in_qh*/
++ hw_ep = musb->endpoints;
++ hw_ep->is_shared_fifo = true;
++#endif
+
+ for (epnum = 1; epnum < musb->config->num_eps; epnum++) {
+ musb_ep_select(mbase, epnum);
+ hw_ep = musb->endpoints + epnum;
+
+ /* read from core using indexed model */
++#ifndef CONFIG_UBICOM32
+ reg = musb_readb(hw_ep->regs, 0x10 + MUSB_FIFOSIZE);
++#else
++ reg = musb_readb(musb->mregs, 0x10 + MUSB_FIFOSIZE);
++#endif
++
+ if (!reg) {
+ /* 0's returned when no more endpoints */
+ break;
+@@ -1272,8 +1327,10 @@ static int __init ep_config_from_hw(stru
+ /* shared TX/RX FIFO? */
+ if ((reg & 0xf0) == 0xf0) {
+ hw_ep->max_packet_sz_rx = hw_ep->max_packet_sz_tx;
+- hw_ep->is_shared_fifo = true;
+- continue;
++ hw_ep->is_shared_fifo = true;
++#ifndef CONFIG_UBICOM32
++ continue; /* For ubicom processors, shared ep is all we get */
++#endif
+ } else {
+ hw_ep->max_packet_sz_rx = 1 << ((reg & 0xf0) >> 4);
+ hw_ep->is_shared_fifo = false;
+@@ -1290,17 +1347,30 @@ static int __init ep_config_from_hw(stru
+ /* REVISIT: this algorithm is lazy, we should at least
+ * try to pick a double buffered endpoint.
+ */
++#ifndef CONFIG_UBICOM32
+ if (musb->bulk_ep)
+ continue;
+ musb->bulk_ep = hw_ep;
++#else
++ if ((musb->bulk_ep_in) && (musb->bulk_ep_out))
++ continue;
++ /* Save theEP with 1024 Bytes FIFO for ISO */
++ if(hw_ep->max_packet_sz_tx == 512) {
++ if (!musb->bulk_ep_in) {
++ musb->bulk_ep_in = hw_ep;
++ } else if (!musb->bulk_ep_out) {
++ musb->bulk_ep_out = hw_ep;
++ }
++ }
++#endif /* CONFIG_UBICOM32 */
+ #endif
+ }
+
+ #ifdef CONFIG_USB_MUSB_HDRC_HCD
+- if (!musb->bulk_ep) {
++ if ((!musb->bulk_ep_in) || (!musb->bulk_ep_out)) {
+ pr_debug("%s: missing bulk\n", musb_driver_name);
+ return -EINVAL;
+- }
++ }
+ #endif
+
+ return 0;
+@@ -1408,12 +1478,16 @@ static int __init musb_core_init(u16 mus
+ musb->epmask = 1;
+
+ if (reg & MUSB_CONFIGDATA_DYNFIFO) {
++#ifndef CONFIG_UBICOM32
+ if (musb->config->dyn_fifo)
+ status = ep_config_from_table(musb);
+- else {
++ else
++#endif
++ {
+ ERR("reconfigure software for Dynamic FIFOs\n");
+ status = -ENODEV;
+ }
++
+ } else {
+ if (!musb->config->dyn_fifo)
+ status = ep_config_from_hw(musb);
+@@ -1477,8 +1551,8 @@ static int __init musb_core_init(u16 mus
+
+ /*-------------------------------------------------------------------------*/
+
+-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430)
+-
++#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430) || defined(CONFIG_UBICOM32)
++static u32_t musb_int_count = 0;
+ static irqreturn_t generic_interrupt(int irq, void *__hci)
+ {
+ unsigned long flags;
+@@ -1487,10 +1561,17 @@ static irqreturn_t generic_interrupt(int
+
+ spin_lock_irqsave(&musb->lock, flags);
+
++#ifndef CONFIG_UBICOM32
+ musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
+ musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
+ musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
++#else
++ musb_read_int_status(&musb->int_usb, &musb->int_tx, &musb->int_rx);
++ //ubi32_usb_int_clr();
++ musb_int_count++;
++#endif
+
++ DBG(4, "usb %x, tx %x, rx %x", musb->int_usb, musb->int_tx, musb->int_rx);
+ if (musb->int_usb || musb->int_tx || musb->int_rx)
+ retval = musb_interrupt(musb);
+
+@@ -2222,6 +2303,10 @@ static struct platform_driver musb_drive
+
+ static int __init musb_init(void)
+ {
++#ifdef CONFIG_UBICOM32
++ ubi32_usb_init();
++#endif
++
+ #ifdef CONFIG_USB_MUSB_HDRC_HCD
+ if (usb_disabled())
+ return 0;
+--- a/drivers/usb/musb/musb_core.h
++++ b/drivers/usb/musb/musb_core.h
+@@ -326,7 +326,9 @@ struct musb {
+ * queue until it completes or NAKs too much; then we try the next
+ * endpoint.
+ */
+- struct musb_hw_ep *bulk_ep;
++ //struct musb_hw_ep *bulk_ep;
++ struct musb_hw_ep *bulk_ep_in; //ubicom
++ struct musb_hw_ep *bulk_ep_out;
+
+ struct list_head control; /* of musb_qh */
+ struct list_head in_bulk; /* of musb_qh */
+@@ -467,7 +469,7 @@ extern void musb_platform_disable(struct
+
+ extern void musb_hnp_stop(struct musb *musb);
+
+-extern void musb_platform_set_mode(struct musb *musb, u8 musb_mode);
++extern int musb_platform_set_mode(struct musb *musb, u8 musb_mode);
+
+ #if defined(CONFIG_USB_TUSB6010) || \
+ defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX)
+--- a/drivers/usb/musb/musb_gadget.c
++++ b/drivers/usb/musb/musb_gadget.c
+@@ -421,7 +421,7 @@ void musb_g_tx(struct musb *musb, u8 epn
+ * probably rates reporting as a host error
+ */
+ if (csr & MUSB_TXCSR_P_SENTSTALL) {
+- csr |= MUSB_TXCSR_P_WZC_BITS;
++ csr &= ~(MUSB_TXCSR_P_WZC_BITS);
+ csr &= ~MUSB_TXCSR_P_SENTSTALL;
+ musb_writew(epio, MUSB_TXCSR, csr);
+ if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
+@@ -437,7 +437,7 @@ void musb_g_tx(struct musb *musb, u8 epn
+
+ if (csr & MUSB_TXCSR_P_UNDERRUN) {
+ /* we NAKed, no big deal ... little reason to care */
+- csr |= MUSB_TXCSR_P_WZC_BITS;
++ csr &= ~(MUSB_TXCSR_P_WZC_BITS);
+ csr &= ~(MUSB_TXCSR_P_UNDERRUN
+ | MUSB_TXCSR_TXPKTRDY);
+ musb_writew(epio, MUSB_TXCSR, csr);
+@@ -573,10 +573,16 @@ static void rxstate(struct musb *musb, s
+ u16 csr = 0;
+ const u8 epnum = req->epnum;
+ struct usb_request *request = &req->request;
+- struct musb_ep *musb_ep = &musb->endpoints[epnum].ep_out;
++ struct musb_ep *musb_ep = NULL;
+ void __iomem *epio = musb->endpoints[epnum].regs;
+ u16 fifo_count = 0;
+- u16 len = musb_ep->packet_sz;
++ u16 len = 0;
++
++ if (musb->endpoints[epnum].is_shared_fifo)
++ musb_ep = &musb->endpoints[epnum].ep_in;
++ else
++ musb_ep = &musb->endpoints[epnum].ep_out;
++ len = musb_ep->packet_sz;
+
+ csr = musb_readw(epio, MUSB_RXCSR);
+
+@@ -715,7 +721,7 @@ static void rxstate(struct musb *musb, s
+ */
+
+ /* ack the read! */
+- csr |= MUSB_RXCSR_P_WZC_BITS;
++ csr &= ~MUSB_RXCSR_P_WZC_BITS;
+ csr &= ~MUSB_RXCSR_RXPKTRDY;
+ musb_writew(epio, MUSB_RXCSR, csr);
+ }
+@@ -734,10 +740,15 @@ void musb_g_rx(struct musb *musb, u8 epn
+ u16 csr;
+ struct usb_request *request;
+ void __iomem *mbase = musb->mregs;
+- struct musb_ep *musb_ep = &musb->endpoints[epnum].ep_out;
++ struct musb_ep *musb_ep = NULL;
+ void __iomem *epio = musb->endpoints[epnum].regs;
+ struct dma_channel *dma;
+
++ if (musb->endpoints[epnum].is_shared_fifo)
++ musb_ep = &musb->endpoints[epnum].ep_in;
++ else
++ musb_ep = &musb->endpoints[epnum].ep_out;
++
+ musb_ep_select(mbase, epnum);
+
+ request = next_request(musb_ep);
+@@ -1559,7 +1570,7 @@ init_peripheral_ep(struct musb *musb, st
+ ep->is_in = is_in;
+
+ INIT_LIST_HEAD(&ep->req_list);
+-
++
+ sprintf(ep->name, "ep%d%s", epnum,
+ (!epnum || hw_ep->is_shared_fifo) ? "" : (
+ is_in ? "in" : "out"));
+@@ -1758,7 +1769,9 @@ int usb_gadget_register_driver(struct us
+ }
+ }
+ }
+-
++#ifndef CONFIG_USB_MUSB_OTG
++ musb_pullup(musb, 1);
++#endif
+ return retval;
+ }
+ EXPORT_SYMBOL(usb_gadget_register_driver);
+--- a/drivers/usb/musb/musb_gadget_ep0.c
++++ b/drivers/usb/musb/musb_gadget_ep0.c
+@@ -240,14 +240,14 @@ __acquires(musb->lock)
+ case USB_REQ_SET_ADDRESS:
+ /* change it after the status stage */
+ musb->set_address = true;
+- musb->address = (u8) (ctrlrequest->wValue & 0x7f);
++ musb->address = (u8) (le16_to_cpu(ctrlrequest->wValue) & 0x7f);
+ handled = 1;
+ break;
+
+ case USB_REQ_CLEAR_FEATURE:
+ switch (recip) {
+ case USB_RECIP_DEVICE:
+- if (ctrlrequest->wValue
++ if (le16_to_cpu(ctrlrequest->wValue)
+ != USB_DEVICE_REMOTE_WAKEUP)
+ break;
+ musb->may_wakeup = 0;
+@@ -261,8 +261,8 @@ __acquires(musb->lock)
+
+ if (num == 0
+ || num >= MUSB_C_NUM_EPS
+- || ctrlrequest->wValue
+- != USB_ENDPOINT_HALT)
++ || le16_to_cpu(ctrlrequest->wValue
++ != USB_ENDPOINT_HALT))
+ break;
+
+ if (ctrlrequest->wIndex & USB_DIR_IN)
+@@ -292,7 +292,7 @@ __acquires(musb->lock)
+ switch (recip) {
+ case USB_RECIP_DEVICE:
+ handled = 1;
+- switch (ctrlrequest->wValue) {
++ switch (le16_to_cpu(ctrlrequest->wValue)) {
+ case USB_DEVICE_REMOTE_WAKEUP:
+ musb->may_wakeup = 1;
+ break;
+@@ -374,8 +374,8 @@ stall:
+
+ if (epnum == 0
+ || epnum >= MUSB_C_NUM_EPS
+- || ctrlrequest->wValue
+- != USB_ENDPOINT_HALT)
++ || le16_to_cpu(ctrlrequest->wValue
++ != USB_ENDPOINT_HALT))
+ break;
+
+ ep = musb->endpoints + epnum;
+--- a/drivers/usb/musb/musb_host.c
++++ b/drivers/usb/musb/musb_host.c
+@@ -139,7 +139,11 @@ static inline void musb_h_tx_start(struc
+ /* NOTE: no locks here; caller should lock and select EP */
+ if (ep->epnum) {
+ txcsr = musb_readw(ep->regs, MUSB_TXCSR);
+- txcsr |= MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_H_WZC_BITS;
++#ifndef CONFIG_UBICOM32
++ txcsr |= MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_H_WZC_BITS;
++#else
++ txcsr |= (MUSB_TXCSR_TXPKTRDY & (~MUSB_TXCSR_H_WZC_BITS));
++#endif
+ musb_writew(ep->regs, MUSB_TXCSR, txcsr);
+ } else {
+ txcsr = MUSB_CSR0_H_SETUPPKT | MUSB_CSR0_TXPKTRDY;
+@@ -198,8 +202,11 @@ musb_start_urb(struct musb *musb, int is
+ len = urb->iso_frame_desc[0].length;
+ break;
+ default: /* bulk, interrupt */
+- buf = urb->transfer_buffer;
+- len = urb->transfer_buffer_length;
++ /* actual_length may be nonzero on retry paths */
++ if (urb->actual_length)
++ DBG(3 ,"musb_start_urb: URB %p retried, len: %d\n", urb, urb->actual_length);
++ buf = urb->transfer_buffer + urb->actual_length;
++ len = urb->transfer_buffer_length - urb->actual_length;
+ }
+
+ DBG(4, "qh %p urb %p dev%d ep%d%s%s, hw_ep %d, %p/%d\n",
+@@ -318,13 +325,13 @@ musb_save_toggle(struct musb_hw_ep *ep,
+ if (!is_in) {
+ csr = musb_readw(epio, MUSB_TXCSR);
+ usb_settoggle(udev, qh->epnum, 1,
+- (csr & MUSB_TXCSR_H_DATATOGGLE)
+- ? 1 : 0);
++ ((csr & MUSB_TXCSR_H_DATATOGGLE)
++ ? 1 : 0));
+ } else {
+ csr = musb_readw(epio, MUSB_RXCSR);
+ usb_settoggle(udev, qh->epnum, 0,
+- (csr & MUSB_RXCSR_H_DATATOGGLE)
+- ? 1 : 0);
++ ((csr & MUSB_RXCSR_H_DATATOGGLE)
++ ? 1 : 0));
+ }
+ }
+
+@@ -337,9 +344,11 @@ musb_giveback(struct musb_qh *qh, struct
+ struct musb *musb = ep->musb;
+ int ready = qh->is_ready;
+
++#ifndef CONFIG_UBICOM32 /* BUG! */
+ if (ep->is_shared_fifo)
+ is_in = 1;
+ else
++#endif
+ is_in = usb_pipein(urb->pipe);
+
+ /* save toggle eagerly, for paranoia */
+@@ -538,7 +547,11 @@ musb_host_packet_rx(struct musb *musb, s
+ musb_read_fifo(hw_ep, length, buf);
+
+ csr = musb_readw(epio, MUSB_RXCSR);
++#ifndef CONFIG_UBICOM32
+ csr |= MUSB_RXCSR_H_WZC_BITS;
++#else
++ csr &= ~MUSB_RXCSR_H_WZC_BITS;
++#endif
+ if (unlikely(do_flush))
+ musb_h_flush_rxfifo(hw_ep, csr);
+ else {
+@@ -572,14 +585,24 @@ musb_rx_reinit(struct musb *musb, struct
+
+ /* if programmed for Tx, put it in RX mode */
+ if (ep->is_shared_fifo) {
++#ifndef CONFIG_UBICOM32
+ csr = musb_readw(ep->regs, MUSB_TXCSR);
+ if (csr & MUSB_TXCSR_MODE) {
+ musb_h_tx_flush_fifo(ep);
+ musb_writew(ep->regs, MUSB_TXCSR,
+ MUSB_TXCSR_FRCDATATOG);
+ }
++#else
+ /* clear mode (and everything else) to enable Rx */
+ musb_writew(ep->regs, MUSB_TXCSR, 0);
++ /* scrub all previous state, clearing toggle */
++ csr = musb_readw(ep->regs, MUSB_RXCSR);
++ if (csr & MUSB_RXCSR_RXPKTRDY)
++ WARNING("rx%d, packet/%d ready?\n", ep->epnum,
++ musb_readw(ep->regs, MUSB_RXCOUNT));
++
++ musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG);
++#endif
+
+ /* scrub all previous state, clearing toggle */
+ } else {
+@@ -680,7 +703,7 @@ static void musb_ep_program(struct musb
+ /* ASSERT: TXCSR_DMAENAB was already cleared */
+
+ /* flush all old state, set default */
+- musb_h_tx_flush_fifo(hw_ep);
++ musb_h_tx_flush_fifo(hw_ep);
+ csr &= ~(MUSB_TXCSR_H_NAKTIMEOUT
+ | MUSB_TXCSR_DMAMODE
+ | MUSB_TXCSR_FRCDATATOG
+@@ -1169,8 +1192,18 @@ void musb_host_tx(struct musb *musb, u8
+ void __iomem *mbase = musb->mregs;
+ struct dma_channel *dma;
+
++#ifdef CONFIG_UBICOM32
++ if (hw_ep->is_shared_fifo) {
++ qh = hw_ep->in_qh;
++ }
++#ifdef CONFIG_USB_SERIAL_SIERRAWIRELESS
++ printk(KERN_DEBUG "OUT/TX%d end, csr %04x%s\n", epnum, tx_csr,
++ dma ? ", dma" : "");
++#endif
++#endif
+ urb = next_urb(qh);
+
++
+ musb_ep_select(mbase, epnum);
+ tx_csr = musb_readw(epio, MUSB_TXCSR);
+
+@@ -1210,9 +1243,14 @@ void musb_host_tx(struct musb *musb, u8
+ * we have a candidate... NAKing is *NOT* an error
+ */
+ musb_ep_select(mbase, epnum);
++#ifndef CONFIG_UBICOM32
+ musb_writew(epio, MUSB_TXCSR,
+ MUSB_TXCSR_H_WZC_BITS
+ | MUSB_TXCSR_TXPKTRDY);
++#else
++ musb_writew(epio, MUSB_TXCSR,
++ MUSB_TXCSR_TXPKTRDY);
++#endif
+ goto finish;
+ }
+
+@@ -1316,8 +1354,14 @@ void musb_host_tx(struct musb *musb, u8
+ qh->segsize = wLength;
+
+ musb_ep_select(mbase, epnum);
++#ifndef CONFIG_UBICOM32
+ musb_writew(epio, MUSB_TXCSR,
+- MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
++ MUSB_TXCSR_MODE | MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
++#else
++ musb_writew(epio, MUSB_TXCSR,
++ MUSB_TXCSR_MODE | MUSB_TXCSR_TXPKTRDY);
++#endif
++
+ } else
+ DBG(1, "not complete, but dma enabled?\n");
+
+@@ -1365,6 +1409,49 @@ finish:
+
+ #endif
+
++/* Schedule next QH from musb->in_bulk and move the current qh to
++ * the end; avoids starvation for other endpoints.
++ */
++static void musb_bulk_rx_nak_timeout(struct musb *musb, struct musb_hw_ep *ep)
++{
++ struct dma_channel *dma;
++ struct urb *urb;
++ void __iomem *mbase = musb->mregs;
++ void __iomem *epio = ep->regs;
++ struct musb_qh *cur_qh, *next_qh;
++ u16 rx_csr;
++
++ musb_ep_select(mbase, ep->epnum);
++ dma = is_dma_capable() ? ep->rx_channel : NULL;
++ /* clear nak timeout bit */
++ rx_csr = musb_readw(epio, MUSB_RXCSR);
++ rx_csr &= ~MUSB_RXCSR_H_WZC_BITS;
++ rx_csr &= ~MUSB_RXCSR_DATAERROR;
++ musb_writew(epio, MUSB_RXCSR, rx_csr);
++
++ cur_qh = first_qh(&musb->in_bulk);
++ if (cur_qh) {
++ urb = next_urb(cur_qh);
++ if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
++ dma->status = MUSB_DMA_STATUS_CORE_ABORT;
++ musb->dma_controller->channel_abort(dma);
++ urb->actual_length += dma->actual_len;
++ dma->actual_len = 0L;
++ }
++ musb_save_toggle(ep, 1, urb);
++
++ /* move cur_qh to end of queue */
++ list_move_tail(&cur_qh->ring, &musb->in_bulk);
++
++ /* get the next qh from musb->in_bulk */
++ next_qh = first_qh(&musb->in_bulk);
++
++ /* set rx_reinit and schedule the next qh */
++ ep->rx_reinit = 1;
++ musb_start_urb(musb, 1, next_qh);
++ }
++}
++
+ /*
+ * Service an RX interrupt for the given IN endpoint; docs cover bulk, iso,
+ * and high-bandwidth IN transfer cases.
+@@ -1383,7 +1470,7 @@ void musb_host_rx(struct musb *musb, u8
+ bool done = false;
+ u32 status;
+ struct dma_channel *dma;
+-
++
+ musb_ep_select(mbase, epnum);
+
+ urb = next_urb(qh);
+@@ -1407,6 +1494,13 @@ void musb_host_rx(struct musb *musb, u8
+
+ pipe = urb->pipe;
+
++#ifdef CONFIG_UBICOM32
++#ifdef CONFIG_USB_SERIAL_SIERRAWIRELESS
++ printk(KERN_DEBUG "RXCSR%d %04x, reqpkt, len %zu%s\n", epnum, rx_csr,
++ xfer_len, dma ? ", dma" : "");
++#endif
++#endif
++
+ DBG(5, "<== hw %d rxcsr %04x, urb actual %d (+dma %zu)\n",
+ epnum, rx_csr, urb->actual_length,
+ dma ? dma->actual_len : 0);
+@@ -1428,18 +1522,30 @@ void musb_host_rx(struct musb *musb, u8
+ } else if (rx_csr & MUSB_RXCSR_DATAERROR) {
+
+ if (USB_ENDPOINT_XFER_ISOC != qh->type) {
+- /* NOTE this code path would be a good place to PAUSE a
+- * transfer, if there's some other (nonperiodic) rx urb
+- * that could use this fifo. (dma complicates it...)
++ DBG(6, "RX end %d NAK timeout\n", epnum);
++
++ /* NOTE: NAKing is *NOT* an error, so we want to
++ * continue. Except ... if there's a request for
++ * another QH, use that instead of starving it.
+ *
+- * if (bulk && qh->ring.next != &musb->in_bulk), then
+- * we have a candidate... NAKing is *NOT* an error
++ * Devices like Ethernet and serial adapters keep
++ * reads posted at all times, which will starve
++ * other devices without this logic.
+ */
+- DBG(6, "RX end %d NAK timeout\n", epnum);
++ if (usb_pipebulk(urb->pipe)
++ && qh->mux == 1
++ && !list_is_singular(&musb->in_bulk)) {
++ musb_bulk_rx_nak_timeout(musb, hw_ep);
++ return;
++ }
+ musb_ep_select(mbase, epnum);
++#ifndef CONFIG_UBICOM32
+ musb_writew(epio, MUSB_RXCSR,
+ MUSB_RXCSR_H_WZC_BITS
+ | MUSB_RXCSR_H_REQPKT);
++#else
++ musb_writew(epio, MUSB_RXCSR, (~(MUSB_RXCSR_H_WZC_BITS))| MUSB_RXCSR_H_REQPKT);
++#endif
+
+ goto finish;
+ } else {
+@@ -1495,8 +1601,13 @@ void musb_host_rx(struct musb *musb, u8
+ rx_csr &= ~MUSB_RXCSR_H_REQPKT;
+
+ musb_ep_select(mbase, epnum);
++#ifndef CONFIG_UBICOM32
+ musb_writew(epio, MUSB_RXCSR,
+ MUSB_RXCSR_H_WZC_BITS | rx_csr);
++#else
++ musb_writew(epio, MUSB_RXCSR,
++ (~MUSB_RXCSR_H_WZC_BITS) & rx_csr);
++#endif
+ }
+ #endif
+ if (dma && (rx_csr & MUSB_RXCSR_DMAENAB)) {
+@@ -1526,7 +1637,7 @@ void musb_host_rx(struct musb *musb, u8
+ else
+ done = false;
+
+- } else {
++ } else {
+ /* done if urb buffer is full or short packet is recd */
+ done = (urb->actual_length + xfer_len >=
+ urb->transfer_buffer_length
+@@ -1743,8 +1854,12 @@ static int musb_schedule(
+ if (musb->periodic[epnum])
+ continue;
+ hw_ep = &musb->endpoints[epnum];
++#ifndef CONFIG_UBICOM32
+ if (hw_ep == musb->bulk_ep)
+- continue;
++#else
++ if ((hw_ep == musb->bulk_ep_in) || (hw_ep == musb->bulk_ep_out)) /* Ubicom */
++#endif
++ continue;
+
+ if (is_in)
+ diff = hw_ep->max_packet_sz_rx - qh->maxpacket;
+@@ -1756,7 +1871,14 @@ static int musb_schedule(
+ best_end = epnum;
+ }
+ }
++
++#ifdef CONFIG_UBICOM32
++ if (((best_diff >= qh->maxpacket)) && ((qh->type == USB_ENDPOINT_XFER_BULK) && (!is_in)))
++ best_end = -1;
++#endif
++
+ /* use bulk reserved ep1 if no other ep is free */
++#ifndef CONFIG_UBICOM32
+ if (best_end < 0 && qh->type == USB_ENDPOINT_XFER_BULK) {
+ hw_ep = musb->bulk_ep;
+ if (is_in)
+@@ -1767,6 +1889,22 @@ static int musb_schedule(
+ } else if (best_end < 0) {
+ return -ENOSPC;
+ }
++#else
++ if (best_end < 0 && qh->type == USB_ENDPOINT_XFER_BULK) {
++ /* hw_ep = musb->bulk_ep; */
++ if (is_in) {
++ head = &musb->in_bulk;
++ hw_ep = musb->bulk_ep_in; /* UBICOM */
++ }
++ else {
++ head = &musb->out_bulk;
++ hw_ep = musb->bulk_ep_out; /* UBICOM */
++ }
++ goto success;
++ } else if (best_end < 0) {
++ return -ENOSPC;
++ }
++#endif
+
+ idle = 1;
+ qh->mux = 0;
+@@ -1779,6 +1917,13 @@ success:
+ list_add_tail(&qh->ring, head);
+ qh->mux = 1;
+ }
++ /*
++ * It's not make sense to set NAK timeout when qh->mux = 0,
++ * There is nothing else to schedule
++ */
++ if ((qh->type == USB_ENDPOINT_XFER_BULK) && (qh->mux == 0))
++ qh->intv_reg = 0;
++
+ qh->hw_ep = hw_ep;
+ qh->hep->hcpriv = qh;
+ if (idle)
+@@ -1884,6 +2029,15 @@ static int musb_urb_enqueue(
+ case USB_ENDPOINT_XFER_ISOC:
+ /* iso always uses log encoding */
+ break;
++#ifdef COMFIG_UBICOM32
++ case USB_ENDPOINT_XFER_BULK:
++ if (epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
++ interval = (USB_SPEED_HIGH == urb->dev->speed) ? 16: 2;
++ else
++ interval = 0;
++ break;
++#endif
++
+ default:
+ /* REVISIT we actually want to use NAK limits, hinting to the
+ * transfer scheduling logic to try some other qh, e.g. try
+--- a/drivers/usb/musb/musb_io.h
++++ b/drivers/usb/musb/musb_io.h
+@@ -56,6 +56,7 @@ static inline void writesb(const void __
+
+ #endif
+
++#ifndef CONFIG_UBICOM32
+ /* NOTE: these offsets are all in bytes */
+
+ static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
+@@ -70,7 +71,37 @@ static inline void musb_writew(void __io
+
+ static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
+ { __raw_writel(data, addr + offset); }
++#else
++#include <asm/ubicom32-tio.h>
++static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
++{
++ u16 data;
++ usb_tio_read_u16((u32)(addr + offset), &data);
++ return data;
++}
+
++static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
++{
++ u8 data;
++ usb_tio_read_u8((u32)(addr + offset), &data);
++ return data;
++}
++
++static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
++{
++ usb_tio_write_u16((u32)(addr + offset), data);
++}
++
++static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
++{
++ usb_tio_write_u8((u32)(addr + offset), data);
++}
++
++static inline void musb_read_int_status(u8_t *int_usb, u16_t *int_tx, u16_t *int_rx)
++{
++ return usb_tio_read_int_status(int_usb, int_tx, int_rx);
++}
++#endif /* CONFIG_UBICOM32 */
+
+ #ifdef CONFIG_USB_TUSB6010
+
+@@ -104,7 +135,7 @@ static inline void musb_writeb(void __io
+ __raw_writew(tmp, addr + (offset & ~1));
+ }
+
+-#else
++#elif !defined(CONFIG_UBICOM32)
+
+ static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
+ { return __raw_readb(addr + offset); }
+--- /dev/null
++++ b/drivers/usb/musb/ubi32_usb.c
+@@ -0,0 +1,156 @@
++/*
++ * drivers/usb/musb/ubi32_usb.c
++ * Ubicom32 usb controller driver.
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ * Copyright (C) 2005-2006 by Texas Instruments
++ *
++ * Derived from the Texas Instruments Inventra Controller Driver for Linux.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/list.h>
++#include <linux/clk.h>
++#include <linux/io.h>
++
++#include <asm/io.h>
++#include <asm/ip5000.h>
++#include "musb_core.h"
++
++void musb_platform_enable(struct musb *musb)
++{
++}
++void musb_platform_disable(struct musb *musb)
++{
++}
++
++int musb_platform_set_mode(struct musb *musb, u8 musb_mode) {
++ return 0;
++}
++
++static void ip5k_usb_hcd_vbus_power(struct musb *musb, int is_on, int sleeping)
++{
++}
++
++static void ip5k_usb_hcd_set_vbus(struct musb *musb, int is_on)
++{
++ u8 devctl;
++ /* HDRC controls CPEN, but beware current surges during device
++ * connect. They can trigger transient overcurrent conditions
++ * that must be ignored.
++ */
++
++ devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
++
++ if (is_on) {
++ musb->is_active = 1;
++ musb->xceiv.default_a = 1;
++ musb->xceiv.state = OTG_STATE_A_WAIT_VRISE;
++ devctl |= MUSB_DEVCTL_SESSION;
++
++ MUSB_HST_MODE(musb);
++ } else {
++ musb->is_active = 0;
++
++ /* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and
++ * jumping right to B_IDLE...
++ */
++
++ musb->xceiv.default_a = 0;
++ musb->xceiv.state = OTG_STATE_B_IDLE;
++ devctl &= ~MUSB_DEVCTL_SESSION;
++
++ MUSB_DEV_MODE(musb);
++ }
++ musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
++
++ DBG(1, "VBUS %s, devctl %02x "
++ /* otg %3x conf %08x prcm %08x */ "\n",
++ otg_state_string(musb),
++ musb_readb(musb->mregs, MUSB_DEVCTL));
++}
++static int ip5k_usb_hcd_set_power(struct otg_transceiver *x, unsigned mA)
++{
++ return 0;
++}
++
++static int musb_platform_resume(struct musb *musb);
++
++int __init musb_platform_init(struct musb *musb)
++{
++
++#ifdef CONFIG_UBICOM32_V4
++ u32_t chip_id;
++ asm volatile (
++ "move.4 %0, CHIP_ID \n\t"
++ : "=r" (chip_id)
++ );
++ if (chip_id == 0x30001) {
++ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 30);
++ udelay(1);
++ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 31);
++ } else {
++ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 17);
++ udelay(1);
++ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_TEST)) &= ~(1 << 14);
++ }
++#endif
++
++ *((u32_t *)(GENERAL_CFG_BASE + GEN_USB_PHY_CFG)) |= ((1 << 14) | (1 <<15));
++
++ /* The i-clk is AUTO gated. Hence there is no need
++ * to disable it until the driver is shutdown */
++
++ clk_enable(musb->clock);
++ musb_platform_resume(musb);
++
++ ip5k_usb_hcd_vbus_power(musb, musb->board_mode == MUSB_HOST, 1);
++
++ if (is_host_enabled(musb))
++ musb->board_set_vbus = ip5k_usb_hcd_set_vbus;
++ if (is_peripheral_enabled(musb))
++ musb->xceiv.set_power = ip5k_usb_hcd_set_power;
++
++ return 0;
++}
++
++
++int musb_platform_suspend(struct musb *musb)
++{
++ return 0;
++}
++int musb_platform_resume(struct musb *musb)
++{
++ return 0;
++}
++
++int musb_platform_exit(struct musb *musb)
++{
++ ip5k_usb_hcd_vbus_power(musb, 0 /*off*/, 1);
++ musb_platform_suspend(musb);
++ return 0;
++}
+--- a/drivers/video/backlight/Kconfig
++++ b/drivers/video/backlight/Kconfig
+@@ -84,6 +84,14 @@ config LCD_TOSA
+ If you have an Sharp SL-6000 Zaurus say Y to enable a driver
+ for its LCD.
+
++config LCD_UBICOM32
++ tristate "Ubicom Backlight Driver"
++ depends on LCD_CLASS_DEVICE && UBICOM32
++ default n
++ help
++ If you have a Ubicom32 based system with an LCD panel, say Y to enable
++ the power control driver for it.
++
+ #
+ # Backlight
+ #
+@@ -214,3 +222,11 @@ config BACKLIGHT_SAHARA
+ help
+ If you have a Tabletkiosk Sahara Touch-iT, say y to enable the
+ backlight driver.
++
++config BACKLIGHT_UBICOM32
++ tristate "Ubicom Backlight Driver"
++ depends on BACKLIGHT_CLASS_DEVICE && UBICOM32
++ default n
++ help
++ If you have a Ubicom32 based system with a backlight say Y to enable the
++ backlight driver.
+--- a/drivers/video/backlight/Makefile
++++ b/drivers/video/backlight/Makefile
+@@ -8,6 +8,8 @@ obj-$(CONFIG_LCD_PLATFORM) += platfor
+ obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
+ obj-$(CONFIG_LCD_TDO24M) += tdo24m.o
+ obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o
++obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
++obj-$(CONFIG_LCD_UBICOM32) += ubicom32lcd.o
+
+ obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
+ obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o
+@@ -22,4 +24,4 @@ obj-$(CONFIG_BACKLIGHT_DA903X) += da903x
+ obj-$(CONFIG_BACKLIGHT_MBP_NVIDIA) += mbp_nvidia_bl.o
+ obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
+ obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+-
++obj-$(CONFIG_BACKLIGHT_UBICOM32) += ubicom32bl.o
+--- /dev/null
++++ b/drivers/video/backlight/ubicom32bl.c
+@@ -0,0 +1,378 @@
++/*
++ * drivers/video/backlight/ubicom32bl.c
++ * Backlight driver for the Ubicom32 platform
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/backlight.h>
++#include <linux/fb.h>
++
++#include <asm/ubicom32bl.h>
++#include <asm/ip5000.h>
++
++#define DRIVER_NAME "ubicom32bl"
++#define UBICOM32BL_MAX_BRIGHTNESS 255
++
++struct ubicom32bl_data {
++ /*
++ * Pointer to the platform data structure. Keep this around since we need values
++ * from it to set the backlight intensity.
++ */
++ const struct ubicom32bl_platform_data *pdata;
++
++ /*
++ * Backlight device, we have to save this for use when we remove ourselves.
++ */
++ struct backlight_device *bldev;
++
++ /*
++ * Current intensity, used for get_intensity.
++ */
++ int cur_intensity;
++
++ /*
++ * Init function for PWM
++ */
++ int (*init_fn)(struct ubicom32bl_data *);
++
++ /*
++ * Set intensity function depending on the backlight type
++ */
++ int (*set_intensity_fn)(struct ubicom32bl_data *, int);
++};
++
++/*
++ * ubicom32bl_set_intensity_gpio
++ */
++static int ubicom32bl_set_intensity_gpio(struct ubicom32bl_data *ud, int intensity)
++{
++ ud->cur_intensity = intensity ? 255 : 0;
++
++ if (intensity) {
++ // set gpio
++ return 0;
++ }
++
++ // clear gpio
++ return 0;
++}
++
++/*
++ * ubicom32bl_set_intensity_hw
++ */
++static int ubicom32bl_set_intensity_hw(struct ubicom32bl_data *ud, int intensity)
++{
++ u16_t period = ud->pdata->pwm_period;
++ u16_t duty;
++
++ /*
++ * Calculate the new duty cycle
++ */
++ duty = (period * intensity) / (UBICOM32BL_MAX_BRIGHTNESS + 1);
++
++ /*
++ * Set the new duty cycle
++ */
++ switch (ud->pdata->pwm_channel) {
++ case 0:
++ /*
++ * Channel 0 is in the lower half of PORT C ctl0 and ctl1
++ */
++ UBICOM32_IO_PORT(RC)->ctl1 = (ud->pdata->pwm_period << 16) | duty;
++ break;
++
++ case 1:
++ /*
++ * Channel 1 is in the upper half of PORT C ctl0 and ctl2
++ */
++ UBICOM32_IO_PORT(RC)->ctl2 = (ud->pdata->pwm_period << 16) | duty;
++ break;
++
++ case 2:
++ /*
++ * Channel 2 is in PORT H ctl0 and ctl1
++ */
++ UBICOM32_IO_PORT(RH)->ctl1 = (ud->pdata->pwm_period << 16) | duty;
++ break;
++ }
++
++ ud->cur_intensity = intensity;
++
++ return 0;
++}
++
++/*
++ * ubicom32bl_set_intensity
++ */
++static int ubicom32bl_set_intensity(struct backlight_device *bd)
++{
++ struct ubicom32bl_data *ud = (struct ubicom32bl_data *)bl_get_data(bd);
++ int intensity = bd->props.brightness;
++
++ /*
++ * If we're blanked the the intensity doesn't matter.
++ */
++ if ((bd->props.power != FB_BLANK_UNBLANK) || (bd->props.fb_blank != FB_BLANK_UNBLANK)) {
++ intensity = 0;
++ }
++
++ /*
++ * Check for inverted backlight.
++ */
++ if (ud->pdata->invert) {
++ intensity = UBICOM32BL_MAX_BRIGHTNESS - intensity;
++ }
++
++ if (ud->set_intensity_fn) {
++ return ud->set_intensity_fn(ud, intensity);
++ }
++
++ return -ENXIO;
++}
++
++/*
++ * ubicom32bl_get_intensity
++ * Return the current intensity of the backlight.
++ */
++static int ubicom32bl_get_intensity(struct backlight_device *bd)
++{
++ struct ubicom32bl_data *ud = (struct ubicom32bl_data *)bl_get_data(bd);
++
++ return ud->cur_intensity;
++}
++
++/*
++ * ubicom32bl_init_hw_pwm
++ * Set the appropriate PWM registers
++ */
++static int ubicom32bl_init_hw_pwm(struct ubicom32bl_data *ud)
++{
++ /*
++ * bit 13: enable
++ */
++ u16_t pwm_cfg = (1 << 13) | (ud->pdata->pwm_prescale << 8) ;
++
++ switch (ud->pdata->pwm_channel) {
++ case 0:
++ /*
++ * Channel 0 is in the lower half of PORT C ctl0 and ctl1
++ */
++ UBICOM32_IO_PORT(RC)->ctl0 &= ~0xFFFF;
++ UBICOM32_IO_PORT(RC)->ctl0 |= pwm_cfg;
++ UBICOM32_IO_PORT(RC)->ctl1 = ud->pdata->pwm_period << 16;
++ break;
++
++ case 1:
++ /*
++ * Channel 1 is in the upper half of PORT C ctl0 and ctl2
++ */
++ UBICOM32_IO_PORT(RC)->ctl0 &= ~0xFFFF0000;
++ UBICOM32_IO_PORT(RC)->ctl0 |= (pwm_cfg << 16);
++ UBICOM32_IO_PORT(RC)->ctl2 = ud->pdata->pwm_period << 16;
++ break;
++
++ case 2:
++ /*
++ * Channel 2 is in PORT H ctl0 and ctl1
++ */
++ UBICOM32_IO_PORT(RH)->ctl0 &= ~0xFFFF0000;
++ UBICOM32_IO_PORT(RH)->ctl0 = pwm_cfg;
++ UBICOM32_IO_PORT(RH)->ctl1 = ud->pdata->pwm_period << 16;
++ break;
++ }
++
++ return 0;
++}
++
++/*
++ * ubicom32bl_init_gpio
++ * Allocate the appropriate GPIO
++ */
++static int ubicom32bl_init_gpio(struct ubicom32bl_data *ud)
++{
++ return 0;
++}
++
++static struct backlight_ops ubicom32bl_ops = {
++ .get_brightness = ubicom32bl_get_intensity,
++ .update_status = ubicom32bl_set_intensity,
++};
++
++/*
++ * ubicom32bl_probe
++ */
++static int ubicom32bl_probe(struct platform_device *pdev)
++{
++ const struct ubicom32bl_platform_data *pdata = pdev->dev.platform_data;
++ struct ubicom32bl_data *ud;
++ struct backlight_device *bldev;
++ int retval;
++
++ /*
++ * Check to see if we have any platform data, if we don't then the backlight is not
++ * configured on this device.
++ */
++ if (!pdata) {
++ return -ENODEV;
++ }
++
++ /*
++ * Allocate our private data
++ */
++ ud = kzalloc(sizeof(struct ubicom32bl_data), GFP_KERNEL);
++ if (!ud) {
++ return -ENOMEM;
++ }
++
++ ud->pdata = pdata;
++
++ /*
++ * Check to see that the platform data is valid for this driver
++ */
++ switch (pdata->type) {
++ case UBICOM32BL_TYPE_PWM:
++ {
++ /*
++ * Make sure we have a PWM peripheral
++ */
++ u32_t chipid;
++ asm volatile (
++ "move.4 %0, CHIP_ID \n\t"
++ : "=r" (chipid)
++ );
++ if (chipid != 0x00030001) {
++ retval = -ENODEV;
++ goto fail;
++ }
++
++ if (pdata->pwm_channel > 3) {
++ retval = -ENODEV;
++ goto fail;
++ }
++ if (pdata->pwm_prescale > 16) {
++ retval = -EINVAL;
++ goto fail;
++ }
++
++ ud->init_fn = ubicom32bl_init_hw_pwm;
++ ud->set_intensity_fn = ubicom32bl_set_intensity_hw;
++ break;
++ }
++
++ case UBICOM32BL_TYPE_PWM_HRT:
++ // For now, PWM HRT devices are treated as binary lights.
++
++ case UBICOM32BL_TYPE_BINARY:
++ ud->init_fn = ubicom32bl_init_gpio;
++ ud->set_intensity_fn = ubicom32bl_set_intensity_gpio;
++ break;
++ }
++
++ /*
++ * Register our backlight device
++ */
++ bldev = backlight_device_register(DRIVER_NAME, &pdev->dev, ud, &ubicom32bl_ops);
++ if (IS_ERR(bldev)) {
++ retval = PTR_ERR(bldev);
++ goto fail;
++ }
++
++ ud->bldev = bldev;
++ ud->cur_intensity = pdata->default_intensity;
++ platform_set_drvdata(pdev, ud);
++
++ /*
++ * Start up the backlight at the prescribed default intensity
++ */
++ bldev->props.power = FB_BLANK_UNBLANK;
++ bldev->props.max_brightness = UBICOM32BL_MAX_BRIGHTNESS;
++ bldev->props.brightness = pdata->default_intensity;
++
++ if (ud->init_fn) {
++ if (ud->init_fn(ud) != 0) {
++ retval = -ENODEV;
++ backlight_device_unregister(ud->bldev);
++ goto fail;
++ }
++ }
++ ubicom32bl_set_intensity(bldev);
++
++ printk(KERN_INFO DRIVER_NAME ": Backlight driver started\n");
++
++ return 0;
++
++fail:
++ platform_set_drvdata(pdev, NULL);
++ kfree(ud);
++ return retval;
++}
++
++/*
++ * ubicom32bl_remove
++ */
++static int __exit ubicom32bl_remove(struct platform_device *pdev)
++{
++ struct ubicom32bl_data *ud = platform_get_drvdata(pdev);
++
++ backlight_device_unregister(ud->bldev);
++ platform_set_drvdata(pdev, NULL);
++ kfree(ud);
++
++ return 0;
++}
++
++static struct platform_driver ubicom32bl_driver = {
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++
++ .remove = __exit_p(ubicom32bl_remove),
++};
++
++/*
++ * ubicom32bl_init
++ */
++static int __init ubicom32bl_init(void)
++{
++ return platform_driver_probe(&ubicom32bl_driver, ubicom32bl_probe);
++}
++module_init(ubicom32bl_init);
++
++/*
++ * ubicom32bl_exit
++ */
++static void __exit ubicom32bl_exit(void)
++{
++ platform_driver_unregister(&ubicom32bl_driver);
++}
++module_exit(ubicom32bl_exit);
++
++MODULE_AUTHOR("Patrick Tjin <@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 backlight driver");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/drivers/video/backlight/ubicom32lcd.c
+@@ -0,0 +1,194 @@
++/*
++ * drivers/vdeio/backlight/ubicom32lcd.c
++ * LCD driver for the Ubicom32 platform
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/lcd.h>
++#include <linux/fb.h>
++#include <linux/gpio.h>
++
++#include <asm/ubicom32lcd.h>
++#include <asm/ip5000.h>
++
++#define DRIVER_NAME "ubicom32lcd"
++
++struct ubicom32lcd_data {
++ /*
++ * Pointer to the platform data structure. Keep this around since we need values
++ * from it to set the backlight intensity.
++ */
++ const struct ubicom32lcd_platform_data *pdata;
++
++ /*
++ * LCD device, we have to save this for use when we remove ourselves.
++ */
++ struct lcd_device *lcddev;
++};
++
++/*
++ * ubicom32lcd_set_power
++ */
++static int ubicom32lcd_set_power(struct lcd_device *ld, int power)
++{
++ struct ubicom32lcd_data *ud = (struct ubicom32lcd_data *)lcd_get_data(ld);
++ if (power == FB_BLANK_UNBLANK) {
++ gpio_direction_output(ud->pdata->vgh_gpio, ud->pdata->vgh_polarity);
++ return 0;
++ }
++
++ gpio_direction_output(ud->pdata->vgh_gpio, !ud->pdata->vgh_polarity);
++ return 0;
++}
++
++/*
++ * ubicom32lcd_get_power
++ */
++static int ubicom32lcd_get_power(struct lcd_device *ld)
++{
++ struct ubicom32lcd_data *ud = (struct ubicom32lcd_data *)lcd_get_data(ld);
++ int vgh = gpio_get_value(ud->pdata->vgh_gpio);
++ if ((vgh && ud->pdata->vgh_polarity) || (!vgh && !ud->pdata->vgh_polarity)) {
++ return 1;
++ }
++
++ return 0;
++}
++
++static struct lcd_ops ubicom32lcd_ops = {
++ .get_power = ubicom32lcd_get_power,
++ .set_power = ubicom32lcd_set_power,
++};
++
++/*
++ * ubicom32lcd_probe
++ */
++static int ubicom32lcd_probe(struct platform_device *pdev)
++{
++ const struct ubicom32lcd_platform_data *pdata = pdev->dev.platform_data;
++ struct ubicom32lcd_data *ud;
++ struct lcd_device *lcddev;
++ int retval;
++
++ /*
++ * Check to see if we have any platform data, if we don't have a LCD to control
++ */
++ if (!pdata) {
++ return -ENODEV;
++ }
++
++ /*
++ * Allocate our private data
++ */
++ ud = kzalloc(sizeof(struct ubicom32lcd_data), GFP_KERNEL);
++ if (!ud) {
++ return -ENOMEM;
++ }
++
++ ud->pdata = pdata;
++
++ /*
++ * Request our GPIOs
++ */
++ retval = gpio_request(pdata->vgh_gpio, "vgh");
++ if (retval) {
++ dev_err(&pdev->dev, "Failed to allocate vgh GPIO\n");
++ goto fail_gpio;
++ }
++
++ /*
++ * Register our lcd device
++ */
++ lcddev = lcd_device_register(DRIVER_NAME, &pdev->dev, ud, &ubicom32lcd_ops);
++ if (IS_ERR(lcddev)) {
++ retval = PTR_ERR(lcddev);
++ goto fail;
++ }
++
++ ud->lcddev = lcddev;
++ platform_set_drvdata(pdev, ud);
++
++ ubicom32lcd_set_power(lcddev, FB_BLANK_UNBLANK);
++
++ printk(KERN_INFO DRIVER_NAME ": LCD driver started\n");
++
++ return 0;
++
++fail:
++ gpio_free(pdata->vgh_gpio);
++
++fail_gpio:
++ platform_set_drvdata(pdev, NULL);
++ kfree(ud);
++ return retval;
++}
++
++/*
++ * ubicom32lcd_remove
++ */
++static int __exit ubicom32lcd_remove(struct platform_device *pdev)
++{
++ struct ubicom32lcd_data *ud = platform_get_drvdata(pdev);
++
++ lcd_device_unregister(ud->lcddev);
++ platform_set_drvdata(pdev, NULL);
++ kfree(ud);
++
++ return 0;
++}
++
++static struct platform_driver ubicom32lcd_driver = {
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++
++ .remove = __exit_p(ubicom32lcd_remove),
++};
++
++/*
++ * ubicom32lcd_init
++ */
++static int __init ubicom32lcd_init(void)
++{
++ return platform_driver_probe(&ubicom32lcd_driver, ubicom32lcd_probe);
++}
++module_init(ubicom32lcd_init);
++
++/*
++ * ubicom32lcd_exit
++ */
++static void __exit ubicom32lcd_exit(void)
++{
++ platform_driver_unregister(&ubicom32lcd_driver);
++}
++module_exit(ubicom32lcd_exit);
++
++MODULE_AUTHOR("Patrick Tjin <@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 backlight driver");
++MODULE_LICENSE("GPL");
+--- a/drivers/video/Kconfig
++++ b/drivers/video/Kconfig
+@@ -609,6 +609,25 @@ config FB_BFIN_T350MCQB
+ This display is a QVGA 320x240 24-bit RGB display interfaced by an 8-bit wide PPI
+ It uses PPI[0..7] PPI_FS1, PPI_FS2 and PPI_CLK.
+
++config FB_UBICOM32
++ tristate "Ubicom32 Frame Buffer driver"
++ depends on FB && UBICOM32
++ select FB_CFB_FILLRECT
++ select FB_CFB_COPYAREA
++ select FB_CFB_IMAGEBLIT
++ select FONT_6x11 if FRAMEBUFFER_CONSOLE
++ help
++ This is the framebuffer device driver for the Ubicom32 architecture.
++
++config FB_UBICOM32_VIRTUAL
++ tristate "Ubicom32 Virtual Frame Buffer driver"
++ depends on FB && UBICOM32
++ select FB_CFB_FILLRECT
++ select FB_CFB_COPYAREA
++ select FB_CFB_IMAGEBLIT
++ select FONT_6x11 if FRAMEBUFFER_CONSOLE
++ help
++ This is a virtual framebuffer device driver for the Ubicom32 architecture.
+
+ config FB_STI
+ tristate "HP STI frame buffer device support"
+--- a/drivers/video/Makefile
++++ b/drivers/video/Makefile
+@@ -132,6 +132,7 @@ obj-$(CONFIG_FB_VGA16) += vga
+ obj-$(CONFIG_FB_OF) += offb.o
+ obj-$(CONFIG_FB_BF54X_LQ043) += bf54x-lq043fb.o
+ obj-$(CONFIG_FB_BFIN_T350MCQB) += bfin-t350mcqb-fb.o
++obj-$(CONFIG_FB_UBICOM32) += ubicom32fb.o
+
+ # the test framebuffer is last
+ obj-$(CONFIG_FB_VIRTUAL) += vfb.o
+--- /dev/null
++++ b/drivers/video/ubicom32fb.c
+@@ -0,0 +1,777 @@
++/*
++ * drivers/video/ubicom32fb.c
++ * Ubicom32 frame buffer driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++/*
++ * This driver was based on skeletonfb.c, Skeleton for a frame buffer device by
++ * Geert Uytterhoeven.
++ */
++
++#include <linux/device.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/version.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/fb.h>
++#include <linux/init.h>
++#include <linux/dma-mapping.h>
++#include <linux/platform_device.h>
++#include <linux/device.h>
++#include <linux/uaccess.h>
++#include <linux/interrupt.h>
++
++#include <asm/io.h>
++#include <asm/ip5000.h>
++#include <asm/vdc_tio.h>
++#include <asm/ubicom32fb.h>
++
++#define DRIVER_NAME "ubicom32fb"
++#define DRIVER_DESCRIPTION "Ubicom32 frame buffer driver"
++
++#define PALETTE_ENTRIES_NO 16
++
++/*
++ * Option variables
++ *
++ * vram_size: VRAM size in kilobytes, subject to alignment
++ */
++static int vram_size = 0;
++module_param(vram_size, int, 0);
++MODULE_PARM_DESC(vram, "VRAM size, in kilobytes to allocate, should be at least the size of one screen, subject to alignment");
++static int init_value = 0;
++module_param(init_value, int, 0);
++MODULE_PARM_DESC(init, "Initial value of the framebuffer (16-bit number).");
++
++/*
++ * fb_fix_screeninfo defines the non-changeable properties of the VDC, depending on what mode it is in.
++ */
++static struct fb_fix_screeninfo ubicom32fb_fix = {
++ .id = "Ubicom32",
++ .type = FB_TYPE_PACKED_PIXELS,
++ .visual = FB_VISUAL_TRUECOLOR,
++ .accel = FB_ACCEL_NONE
++};
++
++/*
++ * Filled in at probe time when we find out what the hardware supports
++ */
++static struct fb_var_screeninfo ubicom32fb_var;
++
++/*
++ * Private data structure
++ */
++struct ubicom32fb_drvdata {
++ struct fb_info *fbinfo;
++ bool cmap_alloc;
++
++ /*
++ * The address of the framebuffer in memory
++ */
++ void *fb;
++ void *fb_aligned;
++
++ /*
++ * Total size of vram including alignment allowance
++ */
++ u32 total_vram_size;
++
++ /*
++ * Interrupt to set when changing registers
++ */
++ u32 vp_int;
++
++ /*
++ * Optional: Interrupt used by TIO to signal us
++ */
++ u32 rx_int;
++
++ /*
++ * Base address of the regs for VDC_TIO
++ */
++ volatile struct vdc_tio_vp_regs *regs;
++
++ /*
++ * non-zero if we are in yuv mode
++ */
++ u8_t is_yuv;
++
++ /*
++ * Fake palette of 16 colors
++ */
++ u32 pseudo_palette[PALETTE_ENTRIES_NO];
++
++ /*
++ * Wait queue and lock used to block when we need to wait
++ * for something to happen.
++ */
++ wait_queue_head_t waitq;
++ struct mutex lock;
++
++};
++
++/*
++ * ubicom32fb_set_next_frame
++ * Sets the next frame buffer to display
++ *
++ * if sync is TRUE then this function will block until the hardware
++ * acknowledges the change
++ */
++static inline void ubicom32fb_set_next_frame(struct ubicom32fb_drvdata *ud, void *fb, u8_t sync)
++{
++ ud->regs->next_frame_flags = ud->is_yuv ? VDCTIO_NEXT_FRAME_FLAG_YUV : 0;
++ ud->regs->next_frame = (void *)((u32_t)fb | 1);
++
++ /*
++ * If we have interrupts, then we can wait on it
++ */
++ if (ud->rx_int != -1) {
++ DEFINE_WAIT(wait);
++ unsigned long flags;
++
++ spin_lock_irqsave(&ud->lock, flags);
++ prepare_to_wait(&ud->waitq, &wait, TASK_INTERRUPTIBLE);
++ spin_unlock_irqrestore(&ud->lock, flags);
++ schedule();
++ finish_wait(&ud->waitq, &wait);
++ return;
++ }
++
++ /*
++ * No interrupt, we will just spin here
++ */
++ while (sync && ((u32_t)ud->regs->next_frame & 1));
++}
++
++/*
++ * ubicom32fb_send_command
++ * Sends a command/data pair to the VDC
++ */
++static inline void ubicom32fb_send_command(struct ubicom32fb_drvdata *ud, u16 command, u8_t block)
++{
++ ud->regs->command = command;
++ ubicom32_set_interrupt(ud->vp_int);
++ while (block && ud->regs->command);
++}
++
++/*
++ * ubicom32fb_ioctl
++ * Handles any ioctls sent to us
++ */
++static int ubicom32fb_ioctl(struct fb_info *fbi, unsigned int cmd,
++ unsigned long arg)
++{
++ struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)fbi->par;
++ void __user *argp = (void __user *)arg;
++ int retval = -EFAULT;
++
++ switch (cmd) {
++ case UBICOM32FB_IOCTL_SET_NEXT_FRAME_SYNC:
++ // check alignment, return -EINVAL if necessary
++ ubicom32fb_set_next_frame(ud, argp, 1);
++ retval = 0;
++ break;
++
++ case UBICOM32FB_IOCTL_SET_NEXT_FRAME:
++ // check alignment, return -EINVAL if necessary
++ ubicom32fb_set_next_frame(ud, argp, 0);
++ retval = 0;
++ break;
++
++ case UBICOM32FB_IOCTL_SET_MODE:
++ if (!(ud->regs->caps & VDCTIO_CAPS_SUPPORTS_SCALING)) {
++ break;
++ } else {
++ struct ubicom32fb_mode mode;
++ volatile struct vdc_tio_vp_regs *regs = ud->regs;
++ u32_t flags = 0;
++
++ if (copy_from_user(&mode, argp, sizeof(mode))) {
++ break;
++ }
++
++ regs->x_in = mode.width;
++ regs->y_in = mode.height;
++ regs->x_out = regs->xres;
++ regs->y_out = regs->yres;
++ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_SCAN_ORDER) {
++ flags |= VDCTIO_SCALE_FLAG_YUV_SCAN_ORDER;
++ }
++ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV_BLOCK_ORDER) {
++ flags |= VDCTIO_SCALE_FLAG_YUV_BLOCK_ORDER;
++ }
++ ud->is_yuv = mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_YUV;
++ if (ud->is_yuv) {
++ flags |= VDCTIO_SCALE_FLAG_YUV;
++ }
++ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_16_255) {
++ flags |= VDCTIO_SCALE_FLAG_VRANGE_16_255;
++ }
++ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VRANGE_0_255) {
++ flags |= VDCTIO_SCALE_FLAG_VRANGE_0_255;
++ }
++ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_VSUB) {
++ flags |= VDCTIO_SCALE_FLAG_VSUB;
++ }
++ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_2_1) {
++ flags |= VDCTIO_SCALE_FLAG_HSUB_2_1;
++ }
++ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_HSUB_1_1) {
++ flags |= VDCTIO_SCALE_FLAG_HSUB_1_1;
++ }
++ if (mode.flags & UBICOM32FB_IOCTL_SET_MODE_FLAG_SCALE_ENABLE) {
++ flags |= VDCTIO_SCALE_FLAG_ENABLE;
++ }
++ if (mode.next_frame) {
++ flags |= VDCTIO_SCALE_FLAG_SET_FRAME_BUFFER;
++ regs->next_frame = mode.next_frame;
++ }
++
++ regs->scale_flags = flags;
++ ubicom32fb_send_command(ud, VDCTIO_COMMAND_SET_SCALE_MODE, 1);
++ retval = 0;
++ break;
++ }
++
++ default:
++ retval = -ENOIOCTLCMD;
++ break;
++ }
++
++ return retval;
++}
++
++/*
++ * ubicom32fb_interrupt
++ * Called by the OS when the TIO has set the rx_int
++ */
++static irqreturn_t ubicom32fb_interrupt(int vec, void *appdata)
++{
++ struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)appdata;
++
++ spin_lock(&ud->lock);
++ if (waitqueue_active(&ud->waitq)) {
++ wake_up(&ud->waitq);
++ }
++ spin_unlock(&ud->lock);
++
++ return IRQ_HANDLED;
++}
++
++/*
++ * ubicom32fb_pan_display
++ * Pans the display to a given location. Supports only y direction panning.
++ */
++static int ubicom32fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
++{
++ struct ubicom32fb_drvdata *ud = (struct ubicom32fb_drvdata *)fbi->par;
++ void *new_addr;
++
++ /*
++ * Get the last y line that would be displayed. Since we don't support YWRAP,
++ * it must be less than our virtual y size.
++ */
++ u32 lasty = var->yoffset + var->yres;
++ if (lasty > fbi->var.yres_virtual) {
++ /*
++ * We would fall off the end of our frame buffer if we panned here.
++ */
++ return -EINVAL;
++ }
++
++ if (var->xoffset) {
++ /*
++ * We don't support panning in the x direction
++ */
++ return -EINVAL;
++ }
++
++ /*
++ * Everything looks sane, go ahead and pan
++ *
++ * We have to calculate a new address for the VDC to look at
++ */
++ new_addr = ud->fb_aligned + (var->yoffset * fbi->fix.line_length);
++
++ /*
++ * Send down the command. The buffer will switch at the next vertical blank
++ */
++ ubicom32fb_set_next_frame(ud, (void *)new_addr, 0);
++
++ return 0;
++}
++
++/*
++ * ubicom32fb_setcolreg
++ * Sets a color in our virtual palette
++ */
++static int ubicom32fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *fbi)
++{
++ u32 *palette = fbi->pseudo_palette;
++
++ if (regno >= PALETTE_ENTRIES_NO) {
++ return -EINVAL;
++ }
++
++ /*
++ * We only use 8 bits from each color
++ */
++ red >>= 8;
++ green >>= 8;
++ blue >>= 8;
++
++ /*
++ * Convert any grayscale values
++ */
++ if (fbi->var.grayscale) {
++ u16 gray = red + green + blue;
++ gray += (gray >> 2) + (gray >> 3) - (gray >> 7);
++ gray >>= 2;
++ if (gray > 255) {
++ gray = 255;
++ }
++ red = gray;
++ blue = gray;
++ green = gray;
++ }
++
++ palette[regno] = (red << fbi->var.red.offset) | (green << fbi->var.green.offset) |
++ (blue << fbi->var.blue.offset);
++
++ return 0;
++}
++
++/*
++ * ubicom32fb_mmap
++ */
++static int ubicom32fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
++{
++ struct ubicom32fb_drvdata *drvdata = (struct ubicom32fb_drvdata *)info->par;
++
++ vma->vm_start = (unsigned long)(drvdata->fb_aligned);
++
++ vma->vm_end = vma->vm_start + info->fix.smem_len;
++
++ /* For those who don't understand how mmap works, go read
++ * Documentation/nommu-mmap.txt.
++ * For those that do, you will know that the VM_MAYSHARE flag
++ * must be set in the vma->vm_flags structure on noMMU
++ * Other flags can be set, and are documented in
++ * include/linux/mm.h
++ */
++
++ vma->vm_flags |= VM_MAYSHARE | VM_SHARED;
++
++ return 0;
++}
++
++/*
++ * ubicom32fb_blank
++ */
++static int ubicom32fb_blank(int blank_mode, struct fb_info *fbi)
++{
++ return 0;
++#if 0
++ struct ubicom32fb_drvdata *drvdata = to_ubicom32fb_drvdata(fbi);
++
++ switch (blank_mode) {
++ case FB_BLANK_UNBLANK:
++ /* turn on panel */
++ ubicom32fb_out_be32(drvdata, REG_CTRL, drvdata->reg_ctrl_default);
++ break;
++
++ case FB_BLANK_NORMAL:
++ case FB_BLANK_VSYNC_SUSPEND:
++ case FB_BLANK_HSYNC_SUSPEND:
++ case FB_BLANK_POWERDOWN:
++ /* turn off panel */
++ ubicom32fb_out_be32(drvdata, REG_CTRL, 0);
++ default:
++ break;
++
++ }
++ return 0; /* success */
++#endif
++}
++
++static struct fb_ops ubicom32fb_ops =
++{
++ .owner = THIS_MODULE,
++ .fb_pan_display = ubicom32fb_pan_display,
++ .fb_setcolreg = ubicom32fb_setcolreg,
++ .fb_blank = ubicom32fb_blank,
++ .fb_mmap = ubicom32fb_mmap,
++ .fb_ioctl = ubicom32fb_ioctl,
++ .fb_fillrect = cfb_fillrect,
++ .fb_copyarea = cfb_copyarea,
++ .fb_imageblit = cfb_imageblit,
++};
++
++/*
++ * ubicom32fb_release
++ */
++static int ubicom32fb_release(struct device *dev)
++{
++ struct ubicom32fb_drvdata *ud = dev_get_drvdata(dev);
++
++#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
++ //ubicom32fb_blank(VESA_POWERDOWN, &drvdata->info);
++#endif
++
++ unregister_framebuffer(ud->fbinfo);
++
++ if (ud->cmap_alloc) {
++ fb_dealloc_cmap(&ud->fbinfo->cmap);
++ }
++
++ if (ud->fb) {
++ kfree(ud->fb);
++ }
++
++ if (ud->rx_int != -1) {
++ free_irq(ud->rx_int, ud);
++ }
++
++ /*
++ * Turn off the display
++ */
++ //ubicom32fb_out_be32(drvdata, REG_CTRL, 0);
++ //iounmap(drvdata->regs);
++
++ framebuffer_release(ud->fbinfo);
++ dev_set_drvdata(dev, NULL);
++
++ return 0;
++}
++
++/*
++ * ubicom32fb_platform_probe
++ */
++static int __init ubicom32fb_platform_probe(struct platform_device *pdev)
++{
++ struct ubicom32fb_drvdata *ud;
++ struct resource *irq_resource_rx;
++ struct resource *irq_resource_tx;
++ struct resource *mem_resource;
++ struct fb_info *fbinfo;
++ int rc;
++ size_t fbsize;
++ struct device *dev = &pdev->dev;
++ int offset;
++ struct vdc_tio_vp_regs *regs;
++
++ /*
++ * Get our resources
++ */
++ irq_resource_tx = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
++ if (!irq_resource_tx) {
++ dev_err(dev, "No tx IRQ resource assigned\n");
++ return -ENODEV;
++ }
++
++ irq_resource_rx = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
++ if (!irq_resource_rx) {
++ dev_err(dev, "No rx IRQ resource assigned\n");
++ return -ENODEV;
++ }
++
++ mem_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ if (!mem_resource || !mem_resource->start) {
++ dev_err(dev, "No mem resource assigned\n");
++ return -ENODEV;
++ }
++ regs = (struct vdc_tio_vp_regs *)mem_resource->start;
++ if (regs->version != VDCTIO_VP_VERSION) {
++ dev_err(dev, "VDCTIO is not compatible with this driver tio:%x drv:%x\n",
++ regs->version, VDCTIO_VP_VERSION);
++ return -ENODEV;
++ }
++
++ /*
++ * This is the minimum VRAM size
++ */
++ fbsize = regs->xres * regs->yres * (regs->bpp / 8);
++ if (!vram_size) {
++ vram_size = (fbsize + 1023) / 1024;
++ } else {
++ if (fbsize > (vram_size * 1024)) {
++ dev_err(dev, "Not enough VRAM for display, need >= %u bytes\n", fbsize);
++ return -ENOMEM; // should be ebadparam?
++ }
++ }
++
++ /*
++ * Allocate the framebuffer instance + our private data
++ */
++ fbinfo = framebuffer_alloc(sizeof(struct ubicom32fb_drvdata), &pdev->dev);
++ if (!fbinfo) {
++ dev_err(dev, "Not enough memory to allocate instance.\n");
++ return -ENOMEM;
++ }
++
++ /*
++ * Fill in our private data.
++ */
++ ud = (struct ubicom32fb_drvdata *)fbinfo->par;
++ ud->fbinfo = fbinfo;
++ ud->regs = (struct vdc_tio_vp_regs *)(mem_resource->start);
++ dev_set_drvdata(dev, ud);
++
++ ud->vp_int = irq_resource_tx->start;
++
++ /*
++ * If we were provided an rx_irq then we need to init the appropriate
++ * queues, locks, and functions.
++ */
++ ud->rx_int = -1;
++ if (irq_resource_rx->start != DEVTREE_IRQ_NONE) {
++ init_waitqueue_head(&ud->waitq);
++ mutex_init(&ud->lock);
++ if (request_irq(ud->rx_int, ubicom32fb_interrupt, IRQF_SHARED, "ubicom32fb_rx", ud)) {
++ dev_err(dev, "Couldn't request rx IRQ\n");
++ rc = -ENOMEM;
++ goto fail;
++ }
++ ud->rx_int = irq_resource_rx->start;
++ }
++
++ /*
++ * Allocate and align the requested amount of VRAM
++ */
++ ud->total_vram_size = (vram_size * 1024) + regs->fb_align;
++ ud->fb = kmalloc(ud->total_vram_size, GFP_KERNEL);
++ if (ud->fb == NULL) {
++ dev_err(dev, "Couldn't allocate VRAM\n");
++ rc = -ENOMEM;
++ goto fail;
++ }
++
++ offset = (u32_t)ud->fb & (regs->fb_align - 1);
++ if (!offset) {
++ ud->fb_aligned = ud->fb;
++ } else {
++ offset = regs->fb_align - offset;
++ ud->fb_aligned = ud->fb + offset;
++ }
++
++ /*
++ * Clear the entire frame buffer
++ */
++ if (!init_value) {
++ memset(ud->fb_aligned, 0, vram_size * 1024);
++ } else {
++ unsigned short *p = ud->fb_aligned;
++ int i;
++ for (i = 0; i < ((vram_size * 1024) / sizeof(u16_t)); i++) {
++ *p++ = init_value;
++ }
++ }
++
++ /*
++ * Fill in the fb_var_screeninfo structure
++ */
++ memset(&ubicom32fb_var, 0, sizeof(ubicom32fb_var));
++ ubicom32fb_var.bits_per_pixel = regs->bpp;
++ ubicom32fb_var.red.offset = regs->rshift;
++ ubicom32fb_var.green.offset = regs->gshift;
++ ubicom32fb_var.blue.offset = regs->bshift;
++ ubicom32fb_var.red.length = regs->rbits;
++ ubicom32fb_var.green.length = regs->gbits;
++ ubicom32fb_var.blue.length = regs->bbits;
++ ubicom32fb_var.activate = FB_ACTIVATE_NOW;
++
++#if 0
++ /*
++ * Turn on the display
++ */
++ ud->reg_ctrl_default = REG_CTRL_ENABLE;
++ if (regs->rotate_screen)
++ ud->reg_ctrl_default |= REG_CTRL_ROTATE;
++ ubicom32fb_out_be32(ud, REG_CTRL, ud->reg_ctrl_default);
++#endif
++
++ /*
++ * Fill in the fb_info structure
++ */
++ ud->fbinfo->device = dev;
++ ud->fbinfo->screen_base = (void *)ud->fb_aligned;
++ ud->fbinfo->fbops = &ubicom32fb_ops;
++ ud->fbinfo->fix = ubicom32fb_fix;
++ ud->fbinfo->fix.smem_start = (u32)ud->fb_aligned;
++ ud->fbinfo->fix.smem_len = fbsize;
++ ud->fbinfo->fix.line_length = regs->xres * (regs->bpp / 8);
++
++ /*
++ * We support panning in the y direction only
++ */
++ ud->fbinfo->fix.xpanstep = 0;
++ ud->fbinfo->fix.ypanstep = 1;
++
++ ud->fbinfo->pseudo_palette = ud->pseudo_palette;
++ ud->fbinfo->flags = FBINFO_DEFAULT;
++ ud->fbinfo->var = ubicom32fb_var;
++ ud->fbinfo->var.xres = regs->xres;
++ ud->fbinfo->var.yres = regs->yres;
++
++ /*
++ * We cannot pan in the X direction, so xres_virtual is regs->xres
++ * We can pan in the Y direction, so yres_virtual is vram_size / ud->fbinfo->fix.line_length
++ */
++ ud->fbinfo->var.xres_virtual = regs->xres;
++ ud->fbinfo->var.yres_virtual = (vram_size * 1024) / ud->fbinfo->fix.line_length;
++
++ //ud->fbinfo->var.height = regs->height_mm;
++ //ud->fbinfo->var.width = regs->width_mm;
++
++ /*
++ * Allocate a color map
++ */
++ rc = fb_alloc_cmap(&ud->fbinfo->cmap, PALETTE_ENTRIES_NO, 0);
++ if (rc) {
++ dev_err(dev, "Fail to allocate colormap (%d entries)\n",
++ PALETTE_ENTRIES_NO);
++ goto fail;
++ }
++ ud->cmap_alloc = true;
++
++ /*
++ * Register new frame buffer
++ */
++ rc = register_framebuffer(ud->fbinfo);
++ if (rc) {
++ dev_err(dev, "Could not register frame buffer\n");
++ goto fail;
++ }
++
++ /*
++ * Start up the VDC
++ */
++ ud->regs->next_frame = ud->fb;
++ ubicom32fb_send_command(ud, VDCTIO_COMMAND_START, 0);
++
++ /*
++ * Tell the log we are here
++ */
++ dev_info(dev, "fbaddr=%p align=%p, size=%uKB screen(%ux%u) virt(%ux%u), regs=%p irqtx=%u irqrx=%u\n",
++ ud->fb, ud->fb_aligned, vram_size, ud->fbinfo->var.xres, ud->fbinfo->var.yres,
++ ud->fbinfo->var.xres_virtual, ud->fbinfo->var.yres_virtual, ud->regs,
++ irq_resource_tx->start, irq_resource_rx->start);
++
++ /*
++ * Success
++ */
++ return 0;
++
++fail:
++ ubicom32fb_release(dev);
++ return rc;
++}
++
++/*
++ * ubicom32fb_platform_remove
++ */
++static int ubicom32fb_platform_remove(struct platform_device *pdev)
++{
++ dev_info(&(pdev->dev), "Ubicom32 FB Driver Remove\n");
++ return ubicom32fb_release(&pdev->dev);
++}
++
++static struct platform_driver ubicom32fb_platform_driver = {
++ .probe = ubicom32fb_platform_probe,
++ .remove = ubicom32fb_platform_remove,
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++};
++
++#ifndef MODULE
++/*
++ * ubicom32fb_setup
++ * Process kernel boot options
++ */
++static int __init ubicom32fb_setup(char *options)
++{
++ char *this_opt;
++
++ if (!options || !*options) {
++ return 0;
++ }
++
++ while ((this_opt = strsep(&options, ",")) != NULL) {
++ if (!*this_opt) {
++ continue;
++ }
++
++ if (!strncmp(this_opt, "init_value=", 10)) {
++ init_value = simple_strtoul(this_opt + 11, NULL, 0);
++ continue;
++ }
++
++ if (!strncmp(this_opt, "vram_size=", 10)) {
++ vram_size = simple_strtoul(this_opt + 10, NULL, 0);
++ continue;
++ }
++ }
++ return 0;
++}
++#endif /* MODULE */
++
++/*
++ * ubicom32fb_init
++ */
++static int __devinit ubicom32fb_init(void)
++{
++#ifndef MODULE
++ /*
++ * Get kernel boot options (in 'video=ubicom32fb:<options>')
++ */
++ char *option = NULL;
++
++ if (fb_get_options(DRIVER_NAME, &option)) {
++ return -ENODEV;
++ }
++ ubicom32fb_setup(option);
++#endif /* MODULE */
++
++ return platform_driver_register(&ubicom32fb_platform_driver);
++}
++module_init(ubicom32fb_init);
++
++/*
++ * ubicom32fb_exit
++ */
++static void __exit ubicom32fb_exit(void)
++{
++ platform_driver_unregister(&ubicom32fb_platform_driver);
++}
++module_exit(ubicom32fb_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Patrick Tjin <@ubicom.com>");
++MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
+--- /dev/null
++++ b/drivers/video/ubicom32vfb.c
+@@ -0,0 +1,492 @@
++/*
++ * drivers/video/ubicom32vfb.c
++ * Ubicom32 virtual frame buffer driver
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++/*
++ * This driver was based on skeletonfb.c, Skeleton for a frame buffer device by
++ * Geert Uytterhoeven.
++ */
++
++#include <linux/device.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/version.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/fb.h>
++#include <linux/init.h>
++#include <linux/dma-mapping.h>
++#include <linux/platform_device.h>
++#include <linux/device.h>
++#include <linux/uaccess.h>
++
++#define DRIVER_NAME "ubicom32vfb"
++#define DRIVER_DESCRIPTION "Ubicom32 virtual frame buffer driver"
++
++#define PALETTE_ENTRIES_NO 16
++
++/*
++ * Option variables
++ *
++ * vram_size: VRAM size in kilobytes, subject to alignment
++ */
++static int vram_size = 0;
++module_param(vram_size, int, 0);
++MODULE_PARM_DESC(vram_size, "VRAM size, in kilobytes to allocate, should be at least the size of one screen, subject to alignment");
++
++static int xres = 320;
++module_param(xres, int, 0);
++MODULE_PARM_DESC(xres, "x (horizontal) resolution");
++
++static int yres = 240;
++module_param(yres, int, 0);
++MODULE_PARM_DESC(yres, "y (vertical) resolution");
++
++static int bgr = 0;
++module_param(bgr, int, 0);
++MODULE_PARM_DESC(bgr, "display is BGR (Blue is MSB)");
++
++/*
++ * Buffer alignment, must not be 0
++ */
++#define UBICOM32VFB_ALIGNMENT 4
++
++/*
++ * fb_fix_screeninfo defines the non-changeable properties of the VDC, depending on what mode it is in.
++ */
++static struct fb_fix_screeninfo ubicom32vfb_fix = {
++ .id = "Ubicom32",
++ .type = FB_TYPE_PACKED_PIXELS,
++ .visual = FB_VISUAL_TRUECOLOR,
++ .accel = FB_ACCEL_NONE
++};
++
++/*
++ * Filled in at probe time when we find out what the hardware supports
++ */
++static struct fb_var_screeninfo ubicom32vfb_var;
++
++/*
++ * Private data structure
++ */
++struct ubicom32vfb_drvdata {
++ struct fb_info *fbinfo;
++ bool cmap_alloc;
++
++ /*
++ * The address of the framebuffer in memory
++ */
++ void *fb;
++ void *fb_aligned;
++
++ /*
++ * Total size of vram including alignment allowance
++ */
++ u32 total_vram_size;
++
++ /*
++ * Fake palette of 16 colors
++ */
++ u32 pseudo_palette[PALETTE_ENTRIES_NO];
++};
++
++/*
++ * ubicom32vfb_pan_display
++ * Pans the display to a given location. Supports only y direction panning.
++ */
++static int ubicom32vfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
++{
++ struct ubicom32vfb_drvdata *ud = (struct ubicom32vfb_drvdata *)fbi->par;
++ void *new_addr;
++
++ /*
++ * Get the last y line that would be displayed. Since we don't support YWRAP,
++ * it must be less than our virtual y size.
++ */
++ u32 lasty = var->yoffset + var->yres;
++ if (lasty > fbi->var.yres_virtual) {
++ /*
++ * We would fall off the end of our frame buffer if we panned here.
++ */
++ return -EINVAL;
++ }
++
++ if (var->xoffset) {
++ /*
++ * We don't support panning in the x direction
++ */
++ return -EINVAL;
++ }
++
++ /*
++ * Everything looks sane, go ahead and pan
++ *
++ * We have to calculate a new address for the VDC to look at
++ */
++ new_addr = ud->fb_aligned + (var->yoffset * fbi->fix.line_length);
++
++ return 0;
++}
++
++/*
++ * ubicom32vfb_setcolreg
++ * Sets a color in our virtual palette
++ */
++static int ubicom32vfb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *fbi)
++{
++ u32 *palette = fbi->pseudo_palette;
++
++ if (regno >= PALETTE_ENTRIES_NO) {
++ return -EINVAL;
++ }
++
++ /*
++ * We only use 8 bits from each color
++ */
++ red >>= 8;
++ green >>= 8;
++ blue >>= 8;
++
++ /*
++ * Convert any grayscale values
++ */
++ if (fbi->var.grayscale) {
++ u16 gray = red + green + blue;
++ gray += (gray >> 2) + (gray >> 3) - (gray >> 7);
++ gray >>= 2;
++ if (gray > 255) {
++ gray = 255;
++ }
++ red = gray;
++ blue = gray;
++ green = gray;
++ }
++
++ palette[regno] = (red << fbi->var.red.offset) | (green << fbi->var.green.offset) |
++ (blue << fbi->var.blue.offset);
++
++ return 0;
++}
++
++/*
++ * ubicom32vfb_mmap
++ */
++static int ubicom32vfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
++{
++ struct ubicom32vfb_drvdata *drvdata = (struct ubicom32vfb_drvdata *)info->par;
++
++ vma->vm_start = (unsigned long)(drvdata->fb_aligned);
++
++ vma->vm_end = vma->vm_start + info->fix.smem_len;
++
++ /* For those who don't understand how mmap works, go read
++ * Documentation/nommu-mmap.txt.
++ * For those that do, you will know that the VM_MAYSHARE flag
++ * must be set in the vma->vm_flags structure on noMMU
++ * Other flags can be set, and are documented in
++ * include/linux/mm.h
++ */
++
++ vma->vm_flags |= VM_MAYSHARE | VM_SHARED;
++
++ return 0;
++}
++
++static struct fb_ops ubicom32vfb_ops =
++{
++ .owner = THIS_MODULE,
++ .fb_pan_display = ubicom32vfb_pan_display,
++ .fb_setcolreg = ubicom32vfb_setcolreg,
++ .fb_mmap = ubicom32vfb_mmap,
++ .fb_fillrect = cfb_fillrect,
++ .fb_copyarea = cfb_copyarea,
++ .fb_imageblit = cfb_imageblit,
++};
++
++/*
++ * ubicom32vfb_release
++ */
++static int ubicom32vfb_release(struct device *dev)
++{
++ struct ubicom32vfb_drvdata *ud = dev_get_drvdata(dev);
++
++ unregister_framebuffer(ud->fbinfo);
++
++ if (ud->cmap_alloc) {
++ fb_dealloc_cmap(&ud->fbinfo->cmap);
++ }
++
++ if (ud->fb) {
++ kfree(ud->fb);
++ }
++
++ framebuffer_release(ud->fbinfo);
++ dev_set_drvdata(dev, NULL);
++
++ return 0;
++}
++
++/*
++ * ubicom32vfb_platform_probe
++ */
++static int __init ubicom32vfb_platform_probe(struct platform_device *pdev)
++{
++ struct ubicom32vfb_drvdata *ud;
++ struct fb_info *fbinfo;
++ int rc;
++ size_t fbsize;
++ struct device *dev = &pdev->dev;
++ int offset;
++
++ /*
++ * This is the minimum VRAM size
++ */
++ fbsize = xres * yres * 2;
++ if (!vram_size) {
++ vram_size = (fbsize + 1023) / 1024;
++ } else {
++ if (fbsize > (vram_size * 1024)) {
++ dev_err(dev, "Not enough VRAM for display, need >= %u bytes\n", fbsize);
++ return -ENOMEM; // should be ebadparam?
++ }
++ }
++
++ /*
++ * Allocate the framebuffer instance + our private data
++ */
++ fbinfo = framebuffer_alloc(sizeof(struct ubicom32vfb_drvdata), &pdev->dev);
++ if (!fbinfo) {
++ dev_err(dev, "Not enough memory to allocate instance.\n");
++ return -ENOMEM;
++ }
++
++ /*
++ * Fill in our private data.
++ */
++ ud = (struct ubicom32vfb_drvdata *)fbinfo->par;
++ ud->fbinfo = fbinfo;
++ dev_set_drvdata(dev, ud);
++
++ /*
++ * Allocate and align the requested amount of VRAM
++ */
++ ud->total_vram_size = (vram_size * 1024) + UBICOM32VFB_ALIGNMENT;
++ ud->fb = kmalloc(ud->total_vram_size, GFP_KERNEL);
++ if (ud->fb == NULL) {
++ dev_err(dev, "Couldn't allocate VRAM\n");
++ rc = -ENOMEM;
++ goto fail;
++ }
++
++ offset = (u32_t)ud->fb & (UBICOM32VFB_ALIGNMENT - 1);
++ if (!offset) {
++ ud->fb_aligned = ud->fb;
++ } else {
++ offset = UBICOM32VFB_ALIGNMENT - offset;
++ ud->fb_aligned = ud->fb + offset;
++ }
++
++ /*
++ * Clear the entire frame buffer
++ */
++ memset(ud->fb_aligned, 0, vram_size * 1024);
++
++ /*
++ * Fill in the fb_var_screeninfo structure
++ */
++ memset(&ubicom32vfb_var, 0, sizeof(ubicom32vfb_var));
++ ubicom32vfb_var.bits_per_pixel = 16;
++ ubicom32vfb_var.red.length = 5;
++ ubicom32vfb_var.green.length = 6;
++ ubicom32vfb_var.green.offset = 5;
++ ubicom32vfb_var.blue.length = 5;
++ ubicom32vfb_var.activate = FB_ACTIVATE_NOW;
++
++ if (bgr) {
++ ubicom32vfb_var.red.offset = 0;
++ ubicom32vfb_var.blue.offset = 11;
++ } else {
++ ubicom32vfb_var.red.offset = 11;
++ ubicom32vfb_var.blue.offset = 0;
++ }
++
++ /*
++ * Fill in the fb_info structure
++ */
++ ud->fbinfo->device = dev;
++ ud->fbinfo->screen_base = (void *)ud->fb_aligned;
++ ud->fbinfo->fbops = &ubicom32vfb_ops;
++ ud->fbinfo->fix = ubicom32vfb_fix;
++ ud->fbinfo->fix.smem_start = (u32)ud->fb_aligned;
++ ud->fbinfo->fix.smem_len = fbsize;
++ ud->fbinfo->fix.line_length = xres * 2;
++
++ /*
++ * We support panning in the y direction only
++ */
++ ud->fbinfo->fix.xpanstep = 0;
++ ud->fbinfo->fix.ypanstep = 1;
++
++ ud->fbinfo->pseudo_palette = ud->pseudo_palette;
++ ud->fbinfo->flags = FBINFO_DEFAULT;
++ ud->fbinfo->var = ubicom32vfb_var;
++ ud->fbinfo->var.xres = xres;
++ ud->fbinfo->var.yres = yres;
++
++ /*
++ * We cannot pan in the X direction, so xres_virtual is xres
++ * We can pan in the Y direction, so yres_virtual is vram_size / ud->fbinfo->fix.line_length
++ */
++ ud->fbinfo->var.xres_virtual = xres;
++ ud->fbinfo->var.yres_virtual = (vram_size * 1024) / ud->fbinfo->fix.line_length;
++
++ /*
++ * Allocate a color map
++ */
++ rc = fb_alloc_cmap(&ud->fbinfo->cmap, PALETTE_ENTRIES_NO, 0);
++ if (rc) {
++ dev_err(dev, "Fail to allocate colormap (%d entries)\n",
++ PALETTE_ENTRIES_NO);
++ goto fail;
++ }
++ ud->cmap_alloc = true;
++
++ /*
++ * Register new frame buffer
++ */
++ rc = register_framebuffer(ud->fbinfo);
++ if (rc) {
++ dev_err(dev, "Could not register frame buffer\n");
++ goto fail;
++ }
++
++ /*
++ * Tell the log we are here
++ */
++ dev_info(dev, "fbaddr=%p align=%p, size=%uKB screen(%ux%u) virt(%ux%u)\n",
++ ud->fb, ud->fb_aligned, vram_size, ud->fbinfo->var.xres, ud->fbinfo->var.yres,
++ ud->fbinfo->var.xres_virtual, ud->fbinfo->var.yres_virtual);
++
++ /*
++ * Success
++ */
++ return 0;
++
++fail:
++ ubicom32vfb_release(dev);
++ return rc;
++}
++
++/*
++ * ubicom32vfb_platform_remove
++ */
++static int ubicom32vfb_platform_remove(struct platform_device *pdev)
++{
++ dev_info(&(pdev->dev), "Ubicom32 FB Driver Remove\n");
++ return ubicom32vfb_release(&pdev->dev);
++}
++
++static struct platform_driver ubicom32vfb_platform_driver = {
++ .probe = ubicom32vfb_platform_probe,
++ .remove = ubicom32vfb_platform_remove,
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++};
++
++#ifndef MODULE
++/*
++ * ubicom32vfb_setup
++ * Process kernel boot options
++ */
++static int __init ubicom32vfb_setup(char *options)
++{
++ char *this_opt;
++
++ if (!options || !*options) {
++ return 0;
++ }
++
++ while ((this_opt = strsep(&options, ",")) != NULL) {
++ if (!*this_opt) {
++ continue;
++ }
++
++ if (!strncmp(this_opt, "vram_size=", 10)) {
++ vram_size = simple_strtoul(this_opt + 10, NULL, 0);
++ continue;
++ }
++
++ if (!strncmp(this_opt, "bgr=", 4)) {
++ bgr = simple_strtoul(this_opt + 4, NULL, 0);
++ continue;
++ }
++
++ if (!strncmp(this_opt, "xres=", 5)) {
++ xres = simple_strtoul(this_opt + 5, NULL, 0);
++ continue;
++ }
++
++ if (!strncmp(this_opt, "yres=", 5)) {
++ yres = simple_strtoul(this_opt + 5, NULL, 0);
++ continue;
++ }
++ }
++ return 0;
++}
++#endif /* MODULE */
++
++/*
++ * ubicom32vfb_init
++ */
++static int __devinit ubicom32vfb_init(void)
++{
++#ifndef MODULE
++ /*
++ * Get kernel boot options (in 'video=ubicom32vfb:<options>')
++ */
++ char *option = NULL;
++
++ if (fb_get_options(DRIVER_NAME, &option)) {
++ return -ENODEV;
++ }
++ ubicom32vfb_setup(option);
++#endif /* MODULE */
++
++ return platform_driver_register(&ubicom32vfb_platform_driver);
++}
++module_init(ubicom32vfb_init);
++
++/*
++ * ubicom32vfb_exit
++ */
++static void __exit ubicom32vfb_exit(void)
++{
++ platform_driver_unregister(&ubicom32vfb_platform_driver);
++}
++module_exit(ubicom32vfb_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Patrick Tjin <@ubicom.com>");
++MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
+--- a/drivers/watchdog/Kconfig
++++ b/drivers/watchdog/Kconfig
+@@ -856,6 +856,19 @@ config WATCHDOG_RIO
+ machines. The watchdog timeout period is normally one minute but
+ can be changed with a boot-time parameter.
+
++# Ubicom32
++
++config UBI32_WDT
++ tristate "Ubicom32 Hardware Watchdog support"
++ depends on UBICOM32
++ ---help---
++ If you say yes here you will get support for the Ubicom32 On-Chip
++ Watchdog Timer. If you have one of these processors and wish to
++ have watchdog support enabled, say Y, otherwise say N.
++
++ To compile this driver as a module, choose M here: the
++ module will be called ubi32_wdt.
++
+ # XTENSA Architecture
+
+ #
+--- a/drivers/watchdog/Makefile
++++ b/drivers/watchdog/Makefile
+@@ -130,6 +130,9 @@ obj-$(CONFIG_SH_WDT) += shwdt.o
+ obj-$(CONFIG_WATCHDOG_RIO) += riowd.o
+ obj-$(CONFIG_WATCHDOG_CP1XXX) += cpwd.o
+
++# Ubicom32 Architecture
++obj-$(CONFIG_UBI32_WDT) += ubi32_wdt.o
++
+ # XTENSA Architecture
+
+ # Architecture Independant
+--- /dev/null
++++ b/drivers/watchdog/ubi32_wdt.c
+@@ -0,0 +1,630 @@
++/*
++ * drivers/watchdog/ubi32_wdt.c
++ * Ubicom32 Watchdog Driver
++ *
++ * Originally based on softdog.c
++ * Copyright 2006-2007 Analog Devices Inc.
++ * Copyright 2006-2007 Michele d'Amico
++ * Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++#include <linux/platform_device.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/types.h>
++#include <linux/timer.h>
++#include <linux/miscdevice.h>
++#include <linux/watchdog.h>
++#include <linux/fs.h>
++#include <linux/notifier.h>
++#include <linux/reboot.h>
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/uaccess.h>
++#include <asm/ip5000.h>
++
++#define WATCHDOG_NAME "ubi32-wdt"
++#define PFX WATCHDOG_NAME ": "
++
++#define OSC1_FREQ 12000000
++#define WATCHDOG_SEC_TO_CYC(x) (OSC1_FREQ * (x))
++#define WATCHDOG_MAX_SEC (0xffffffff / OSC1_FREQ)
++
++#define MIN_PROCESSOR_ADDRESS 0x03000000
++
++static DEFINE_SPINLOCK(ubi32_wdt_spinlock);
++
++#define WATCHDOG_TIMEOUT 20
++
++#if defined(CONFIG_WATCHDOG_NOWAYOUT)
++#define WATCHDOG_NOWAYOUT 1
++#else
++#define WATCHDOG_NOWAYOUT 0
++#endif
++
++static unsigned int timeout = WATCHDOG_TIMEOUT;
++static int nowayout = WATCHDOG_NOWAYOUT;
++static struct watchdog_info ubi32_wdt_info;
++static unsigned long open_check;
++static char expect_close;
++
++#if !defined(CONFIG_SMP)
++#define UBI32_WDT_LOCK(lock, flags) local_irq_save(flags)
++#define UBI32_WDT_UNLOCK(lock, flags) local_irq_restore(flags)
++#define UBI32_WDT_LOCK_CHECK()
++#else
++#define UBI32_WDT_LOCK(lock, flags) spin_lock_irqsave((lock), (flags));
++#define UBI32_WDT_UNLOCK(lock, flags) spin_unlock_irqrestore((lock), (flags));
++#define UBI32_WDT_LOCK_CHECK() BUG_ON(!spin_is_locked(&ubi32_wdt_spinlock));
++#endif
++
++/*
++ * ubi32_wdt_remaining()
++ * Return the approximate number of seconds remaining
++ */
++static int ubi32_wdt_remaining(void)
++{
++ int compare;
++ int curr;
++
++ UBI32_WDT_LOCK_CHECK();
++
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++ compare = ubicom32_read_reg(&UBICOM32_IO_TIMER->wdcom);
++ curr = ubicom32_read_reg(&UBICOM32_IO_TIMER->mptval);
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++ return (compare - curr) / OSC1_FREQ;
++
++}
++
++/*
++ * ubi32_wdt_keepalive()
++ * Keep the Userspace Watchdog Alive
++ *
++ * The Userspace watchdog got a KeepAlive: schedule the next timeout.
++ */
++static int ubi32_wdt_keepalive(void)
++{
++ UBI32_WDT_LOCK_CHECK();
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcom,
++ ubicom32_read_reg(&UBICOM32_IO_TIMER->mptval)
++ + WATCHDOG_SEC_TO_CYC(timeout));
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++ return 0;
++}
++
++/*
++ * ubi32_wdt_stop()
++ * Stop the on-chip Watchdog
++ */
++static int ubi32_wdt_stop(void)
++{
++ UBI32_WDT_LOCK_CHECK();
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcfg, TIMER_WATCHDOG_DISABLE);
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++ return 0;
++}
++
++/*
++ * ubi32_wdt_start()
++ * Start the on-chip Watchdog
++ */
++static int ubi32_wdt_start(void)
++{
++ UBI32_WDT_LOCK_CHECK();
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcom,
++ ubicom32_read_reg(&UBICOM32_IO_TIMER->mptval)
++ + WATCHDOG_SEC_TO_CYC(timeout));
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->wdcfg, ~TIMER_WATCHDOG_DISABLE);
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++ return 0;
++}
++
++/*
++ * ubi32_wdt_running()
++ * Return true if the watchdog is configured
++ */
++static int ubi32_wdt_running(void)
++{
++ int enabled;
++
++ UBI32_WDT_LOCK_CHECK();
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, TIMER_TKEYVAL);
++ enabled = ubicom32_read_reg(&UBICOM32_IO_TIMER->wdcfg) == ~TIMER_WATCHDOG_DISABLE;
++ ubicom32_write_reg(&UBICOM32_IO_TIMER->tkey, 0);
++ return enabled;
++}
++
++/*
++ * ubi32_wdt_set_timeout()
++ * Set the Userspace Watchdog timeout
++ *
++ * - @t: new timeout value (in seconds)
++ */
++static int ubi32_wdt_set_timeout(unsigned long t)
++{
++ UBI32_WDT_LOCK_CHECK();
++
++ if (t > WATCHDOG_MAX_SEC) {
++ printk(KERN_WARNING PFX "request to large: %ld [1-%d] sec)\n", t, WATCHDOG_MAX_SEC);
++ return -EINVAL;
++ }
++
++ /*
++ * If we are running, then reset the time value so
++ * that the new value has an immediate effect.
++ */
++ timeout = t;
++ if (ubi32_wdt_running()) {
++ ubi32_wdt_keepalive();
++ }
++ return 0;
++}
++
++/*
++ * ubi32_wdt_open()
++ * Open the Device
++ */
++static int ubi32_wdt_open(struct inode *inode, struct file *file)
++{
++ unsigned long flags;
++
++ if (test_and_set_bit(0, &open_check))
++ return -EBUSY;
++
++ if (nowayout)
++ __module_get(THIS_MODULE);
++
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ ubi32_wdt_start();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++
++ return nonseekable_open(inode, file);
++}
++
++/*
++ * ubi32_wdt_close()
++ * Close the Device
++ */
++static int ubi32_wdt_release(struct inode *inode, struct file *file)
++{
++ unsigned long flags;
++
++ /*
++ * If we don't expect a close, then the watchdog continues
++ * even though the device is closed. The caller will have
++ * a full timeout value to reopen the device and continue
++ * stroking it.
++ */
++ if (expect_close != 42) {
++ printk(KERN_CRIT PFX
++ "Unexpected close, not stopping watchdog!\n");
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ ubi32_wdt_keepalive();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ } else {
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ ubi32_wdt_stop();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ }
++
++ expect_close = 0;
++ clear_bit(0, &open_check);
++ return 0;
++}
++
++/*
++ * ubi32_wdt_write()
++ * Write to Device
++ *
++ * If the user writes nothing, nothing happens.
++ * If the user writes a V, then we expect a close and allow a release.
++ * If the user writes anything else, it is ignored.
++ */
++static ssize_t ubi32_wdt_write(struct file *file, const char __user *data,
++ size_t len, loff_t *ppos)
++{
++ size_t i;
++ unsigned long flags;
++
++ /*
++ * Every write resets the expect_close. The last write
++ * must be a V to allow shutdown on close.
++ */
++ expect_close = 0;
++
++ /*
++ * Empty writes still ping.
++ */
++ if (!len) {
++ goto ping;
++ }
++
++ /*
++ * If nowayout is set, it does not matter if the caller
++ * is trying to send the magic 'V' we will not allow a
++ * close to stop us.
++ */
++ if (nowayout) {
++ goto ping;
++ }
++
++ /*
++ * See if the program wrote a 'V' and if so disable
++ * the watchdog on release.
++ */
++ for (i = 0; i < len; i++) {
++ char c;
++ if (get_user(c, data + i)) {
++ return -EFAULT;
++ }
++
++ if (c == 'V') {
++ expect_close = 42;
++ }
++ }
++
++ping:
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ ubi32_wdt_keepalive();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ return len;
++}
++
++/*
++ * ubi32_wdt_ioctl()
++ * Query the watchdog device.
++ *
++ * Query basic information from the device or ping it, as outlined by the
++ * watchdog API.
++ */
++static long ubi32_wdt_ioctl(struct file *file,
++ unsigned int cmd, unsigned long arg)
++{
++ void __user *argp = (void __user *)arg;
++ int __user *p = argp;
++
++ switch (cmd) {
++ case WDIOC_GETSUPPORT:
++ if (copy_to_user(argp, &ubi32_wdt_info, sizeof(ubi32_wdt_info))) {
++ return -EFAULT;
++ }
++ return 0;
++
++ case WDIOC_GETSTATUS: {
++ unsigned long flags;
++ int running;
++
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ running = ubi32_wdt_running();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ return running;
++ }
++
++ case WDIOC_GETBOOTSTATUS:
++ return ubicom32_get_reset_reason();
++
++ case WDIOC_SETOPTIONS: {
++ unsigned long flags;
++ int options, ret = -EINVAL;
++
++ /*
++ * The sample application does not pass a pointer
++ * but directly passes a value of 1 or 2; however
++ * all of the implementations (and thus probably
++ * the real applications) pass a pointer to a value.
++ *
++ * It should be noted that WDIOC_SETOPTIONS is defined as
++ * _IOR(WATCHDOG_IOCTL_BASE, 4, int), which means
++ * that it should be an int and NOT a pointer.
++ *
++ * TODO: Examine this code for future chips.
++ * TODO: Report the sample code defect.
++ */
++ if ((int)p < MIN_PROCESSOR_ADDRESS) {
++ options = (int)p;
++ } else {
++ if (get_user(options, p))
++ return -EFAULT;
++ }
++
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ if (options & WDIOS_DISABLECARD) {
++ ubi32_wdt_stop();
++ ret = 0;
++ }
++ if (options & WDIOS_ENABLECARD) {
++ ubi32_wdt_start();
++ ret = 0;
++ }
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ return ret;
++ }
++
++ case WDIOC_KEEPALIVE: {
++ unsigned long flags;
++
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ ubi32_wdt_keepalive();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ return 0;
++ }
++
++ case WDIOC_SETTIMEOUT: {
++ int new_timeout;
++ unsigned long flags;
++ int ret = 0;
++
++ if (get_user(new_timeout, p))
++ return -EFAULT;
++
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ ret = ubi32_wdt_set_timeout(new_timeout);
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ return ret;
++
++ }
++
++ case WDIOC_GETTIMEOUT:
++ return put_user(timeout, p);
++
++ case WDIOC_GETTIMELEFT: {
++ unsigned long flags;
++ int remaining = 0;
++
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ remaining = ubi32_wdt_remaining();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ return put_user(remaining, p);
++ }
++
++ default:
++ return -ENOTTY;
++ }
++}
++
++/*
++ * ubi32_wdt_notify_sys()
++ * Notification callback function for system events.
++ *
++ * Turn off the watchdog during a SYS_DOWN or SYS_HALT.
++ */
++static int ubi32_wdt_notify_sys(struct notifier_block *this,
++ unsigned long code, void *unused)
++{
++ if (code == SYS_DOWN || code == SYS_HALT) {
++ unsigned long flags;
++
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ ubi32_wdt_stop();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ }
++
++ return NOTIFY_DONE;
++}
++
++#ifdef CONFIG_PM
++static int state_before_suspend;
++
++/*
++ * ubi32_wdt_suspend()
++ * suspend the watchdog
++ *
++ * Remember if the watchdog was running and stop it.
++ */
++static int ubi32_wdt_suspend(struct platform_device *pdev, pm_message_t state)
++{
++ unsigned long flags;
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ state_before_suspend = ubi32_wdt_running();
++ ubi32_wdt_stop();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++
++ return 0;
++}
++
++/*
++ * ubi32_wdt_resume()
++ * Resume the watchdog
++ *
++ * If the watchdog was running, turn it back on.
++ */
++static int ubi32_wdt_resume(struct platform_device *pdev)
++{
++ if (state_before_suspend) {
++ unsigned long flags;
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ ubi32_wdt_set_timeout(timeout);
++ ubi32_wdt_start();
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ }
++
++ return 0;
++}
++#else
++# define ubi32_wdt_suspend NULL
++# define ubi32_wdt_resume NULL
++#endif
++
++static const struct file_operations ubi32_wdt_fops = {
++ .owner = THIS_MODULE,
++ .llseek = no_llseek,
++ .write = ubi32_wdt_write,
++ .unlocked_ioctl = ubi32_wdt_ioctl,
++ .open = ubi32_wdt_open,
++ .release = ubi32_wdt_release,
++};
++
++static struct miscdevice ubi32_wdt_miscdev = {
++ .minor = WATCHDOG_MINOR,
++ .name = "watchdog",
++ .fops = &ubi32_wdt_fops,
++};
++
++static struct watchdog_info ubi32_wdt_info = {
++ .identity = "Ubicom32 Watchdog",
++ .options = WDIOF_SETTIMEOUT |
++ WDIOF_KEEPALIVEPING |
++ WDIOF_MAGICCLOSE,
++};
++
++static struct notifier_block ubi32_wdt_notifier = {
++ .notifier_call = ubi32_wdt_notify_sys,
++};
++
++/*
++ * ubi32_wdt_probe()
++ * Probe/register the watchdog module
++ *
++ * Registers the misc device and notifier handler. Actual device
++ * initialization is handled by ubi32_wdt_open().
++ */
++static int __devinit ubi32_wdt_probe(struct platform_device *pdev)
++{
++ int ret;
++
++ ret = register_reboot_notifier(&ubi32_wdt_notifier);
++ if (ret) {
++ printk(KERN_ERR PFX
++ "cannot register reboot notifier (err=%d)\n", ret);
++ return ret;
++ }
++
++ ret = misc_register(&ubi32_wdt_miscdev);
++ if (ret) {
++ printk(KERN_ERR PFX
++ "cannot register miscdev on minor=%d (err=%d)\n",
++ WATCHDOG_MINOR, ret);
++ unregister_reboot_notifier(&ubi32_wdt_notifier);
++ return ret;
++ }
++
++ printk(KERN_INFO PFX "initialized: timeout=%d sec (nowayout=%d)\n",
++ timeout, nowayout);
++
++ return 0;
++}
++
++/*
++ * ubi32_wdt_remove()
++ * Uninstall the module
++ *
++ * Unregisters the misc device and notifier handler. Actual device
++ * deinitialization is handled by ubi32_wdt_close().
++ */
++static int __devexit ubi32_wdt_remove(struct platform_device *pdev)
++{
++ misc_deregister(&ubi32_wdt_miscdev);
++ unregister_reboot_notifier(&ubi32_wdt_notifier);
++ return 0;
++}
++
++static struct platform_device *ubi32_wdt_device;
++
++static struct platform_driver ubi32_wdt_driver = {
++ .probe = ubi32_wdt_probe,
++ .remove = __devexit_p(ubi32_wdt_remove),
++ .suspend = ubi32_wdt_suspend,
++ .resume = ubi32_wdt_resume,
++ .driver = {
++ .name = WATCHDOG_NAME,
++ .owner = THIS_MODULE,
++ },
++};
++
++/*
++ * ubi32_wdt_init()
++ * Initialize the watchdog.
++ *
++ * Checks the module params and registers the platform device & driver.
++ * Real work is in the platform probe function.
++ */
++static int __init ubi32_wdt_init(void)
++{
++ unsigned long flags;
++ int ret;
++
++ /*
++ * Check that the timeout value is within range
++ */
++ spin_lock_irqsave(&ubi32_wdt_spinlock, flags);
++ ret = ubi32_wdt_set_timeout(timeout);
++ spin_unlock_irqrestore(&ubi32_wdt_spinlock, flags);
++ if (ret) {
++ return ret;
++ }
++
++ /*
++ * Since this is an on-chip device and needs no board-specific
++ * resources, we'll handle all the platform device stuff here.
++ */
++ ret = platform_driver_register(&ubi32_wdt_driver);
++ if (ret) {
++ printk(KERN_ERR PFX "unable to register driver\n");
++ return ret;
++ }
++
++ ubi32_wdt_device = platform_device_register_simple(WATCHDOG_NAME, -1, NULL, 0);
++ if (IS_ERR(ubi32_wdt_device)) {
++ printk(KERN_ERR PFX "unable to register device\n");
++ platform_driver_unregister(&ubi32_wdt_driver);
++ return PTR_ERR(ubi32_wdt_device);
++ }
++
++ return 0;
++}
++
++/*
++ * ubi32_wdt_exit()
++ * Deinitialize module
++ *
++ * Back out the platform device & driver steps. Real work is in the
++ * platform remove function.
++ */
++static void __exit ubi32_wdt_exit(void)
++{
++ platform_device_unregister(ubi32_wdt_device);
++ platform_driver_unregister(&ubi32_wdt_driver);
++}
++
++module_init(ubi32_wdt_init);
++module_exit(ubi32_wdt_exit);
++
++MODULE_AUTHOR("Sol Kavy<sol@ubicom.com>");
++MODULE_DESCRIPTION("Ubicom32 Watchdog Device Driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
++
++module_param(timeout, uint, 0);
++MODULE_PARM_DESC(timeout,
++ "Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default="
++ __MODULE_STRING(WATCHDOG_TIMEOUT) ")");
++
++module_param(nowayout, int, 0);
++MODULE_PARM_DESC(nowayout,
++ "Watchdog cannot be stopped once started (default="
++ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+--- a/fs/binfmt_flat.c
++++ b/fs/binfmt_flat.c
+@@ -54,6 +54,10 @@
+ #define DBG_FLT(a...)
+ #endif
+
++#ifndef ARCH_FLAT_ALIGN
++#define ARCH_FLAT_ALIGN 0
++#endif
++
+ #define RELOC_FAILED 0xff00ff01 /* Relocation incorrect somewhere */
+ #define UNLOADED_LIB 0x7ff000ff /* Placeholder for unused library */
+
+@@ -127,10 +131,10 @@ static unsigned long create_flat_tables(
+ --sp; put_user((unsigned long) argv, sp);
+ }
+
+- put_user(argc,--sp);
++ --sp; put_user(argc,sp);
+ current->mm->arg_start = (unsigned long) p;
+ while (argc-->0) {
+- put_user((unsigned long) p, argv++);
++ put_user((unsigned long) p, argv); argv++;
+ do {
+ get_user(dummy, p); p++;
+ } while (dummy);
+@@ -425,6 +429,7 @@ static int load_flat_file(struct linux_b
+ loff_t fpos;
+ unsigned long start_code, end_code;
+ int ret;
++ int flush_happened = 0;
+
+ hdr = ((struct flat_hdr *) bprm->buf); /* exec-header */
+ inode = bprm->file->f_path.dentry->d_inode;
+@@ -510,6 +515,7 @@ static int load_flat_file(struct linux_b
+
+ /* OK, This is the point of no return */
+ set_personality(PER_LINUX_32BIT);
++ flush_happened = 1;
+ }
+
+ /*
+@@ -524,6 +530,12 @@ static int load_flat_file(struct linux_b
+ * it all together.
+ */
+ if ((flags & (FLAT_FLAG_RAM|FLAT_FLAG_GZIP)) == 0) {
++
++#ifdef ARCH_FLAT_ALIGN_TEXT
++ printk("Unable to mmap rom with ARCH alignment requirements\n");
++ ret = -ENOEXEC;
++ goto err;
++#endif
+ /*
+ * this should give us a ROM ptr, but if it doesn't we don't
+ * really care
+@@ -542,7 +554,7 @@ static int load_flat_file(struct linux_b
+ goto err;
+ }
+
+- len = data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long);
++ len = data_len + extra + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN);
+ down_write(¤t->mm->mmap_sem);
+ realdatastart = do_mmap(0, 0, len,
+ PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0);
+@@ -565,7 +577,7 @@ static int load_flat_file(struct linux_b
+ ret = realdatastart;
+ goto err;
+ }
+- datapos = realdatastart + MAX_SHARED_LIBS * sizeof(unsigned long);
++ datapos = realdatastart + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN);
+
+ DBG_FLT("BINFMT_FLAT: Allocated data+bss+stack (%d bytes): %x\n",
+ (int)(data_len + bss_len + stack_len), (int)datapos);
+@@ -594,7 +606,11 @@ static int load_flat_file(struct linux_b
+
+ } else {
+
+- len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long);
++ len = text_len + data_len + extra + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN);
++#ifdef ARCH_FLAT_ALIGN_TEXT
++ /* Reserve space for the text alignment. */
++ len += ARCH_FLAT_ALIGN;
++#endif
+ down_write(¤t->mm->mmap_sem);
+ textpos = do_mmap(0, 0, len,
+ PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
+@@ -617,11 +633,14 @@ static int load_flat_file(struct linux_b
+ goto err;
+ }
+
++ memp = textpos;
++#ifdef ARCH_FLAT_ALIGN_TEXT
++ textpos = ALIGN(textpos + sizeof(struct flat_hdr), ARCH_FLAT_ALIGN) - sizeof(struct flat_hdr);
++#endif
+ realdatastart = textpos + ntohl(hdr->data_start);
+- datapos = realdatastart + MAX_SHARED_LIBS * sizeof(unsigned long);
++ datapos = realdatastart + ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN);
+ reloc = (unsigned long *) (textpos + ntohl(hdr->reloc_start) +
+- MAX_SHARED_LIBS * sizeof(unsigned long));
+- memp = textpos;
++ ALIGN(MAX_SHARED_LIBS * sizeof(unsigned long), ARCH_FLAT_ALIGN));
+
+ #ifdef CONFIG_BINFMT_ZFLAT
+ /*
+@@ -657,7 +676,7 @@ static int load_flat_file(struct linux_b
+ }
+ if (result >= (unsigned long)-4096) {
+ printk("Unable to read code+data+bss, errno %d\n",(int)-result);
+- do_munmap(current->mm, textpos, text_len + data_len + extra +
++ do_munmap(current->mm, memp, text_len + data_len + extra +
+ MAX_SHARED_LIBS * sizeof(unsigned long));
+ ret = result;
+ goto err;
+@@ -670,6 +689,9 @@ static int load_flat_file(struct linux_b
+
+ /* The main program needs a little extra setup in the task structure */
+ start_code = textpos + sizeof (struct flat_hdr);
++#ifdef ARCH_FLAT_ALIGN_TEXT
++ BUG_ON(ALIGN(start_code, ARCH_FLAT_ALIGN) != start_code);
++#endif
+ end_code = textpos + text_len;
+ if (id == 0) {
+ current->mm->start_code = start_code;
+@@ -796,6 +818,13 @@ static int load_flat_file(struct linux_b
+
+ return 0;
+ err:
++ if (flush_happened) {
++ /*
++ * The parent process has already started running. We cannot allow the child to return back to user space
++ * as this child is still uning the parent stack and 2 will clobber each other. We are going to kill this child.
++ */
++ do_exit(SIGTERM);
++ }
+ return ret;
+ }
+
+--- a/fs/Kconfig.binfmt
++++ b/fs/Kconfig.binfmt
+@@ -30,7 +30,7 @@ config COMPAT_BINFMT_ELF
+ config BINFMT_ELF_FDPIC
+ bool "Kernel support for FDPIC ELF binaries"
+ default y
+- depends on (FRV || BLACKFIN || (SUPERH32 && !MMU))
++ depends on (FRV || BLACKFIN || (SUPERH32 && !MMU) || UBICOM32)
+ help
+ ELF FDPIC binaries are based on ELF, but allow the individual load
+ segments of a binary to be located in memory independently of each
+--- a/include/asm-generic/dma-mapping.h
++++ b/include/asm-generic/dma-mapping.h
+@@ -255,7 +255,7 @@ dma_sync_sg_for_device(struct device *de
+ }
+
+ static inline int
+-dma_error(dma_addr_t dma_addr)
++dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+ {
+ return 0;
+ }
+--- a/include/linux/elf-em.h
++++ b/include/linux/elf-em.h
+@@ -41,6 +41,7 @@
+ * up with a final number.
+ */
+ #define EM_ALPHA 0x9026
++#define EM_UBICOM32 0xde3d /* Ubicom32; no ABI */
+
+ /* Bogus old v850 magic number, used by old tools. */
+ #define EM_CYGNUS_V850 0x9080
+--- a/include/linux/oprofile.h
++++ b/include/linux/oprofile.h
+@@ -100,6 +100,8 @@ void oprofile_add_sample(struct pt_regs
+ */
+ void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
+ unsigned long event, int is_kernel);
++void oprofile_add_ext_sample_cpu(unsigned long pc, struct pt_regs * const regs,
++ unsigned long event, int is_kernel, int cpu);
+
+ /* Use this instead when the PC value is not from the regs. Doesn't
+ * backtrace. */
+--- a/include/linux/serial_core.h
++++ b/include/linux/serial_core.h
+@@ -158,6 +158,9 @@
+ /* SH-SCI */
+ #define PORT_SCIFA 83
+
++/* Ubicom32 */
++#define PORT_UBI32_UARTTIO 84
++
+ #ifdef __KERNEL__
+
+ #include <linux/compiler.h>
+--- a/kernel/module.c
++++ b/kernel/module.c
+@@ -2624,6 +2624,9 @@ static int m_show(struct seq_file *m, vo
+ /* Used by oprofile and other similar tools. */
+ seq_printf(m, " 0x%p", mod->module_core);
+
++#ifdef ARCH_PROC_MODULES_EXTRA
++ ARCH_PROC_MODULES_EXTRA(m, mod);
++#endif
+ /* Taints info */
+ if (mod->taints)
+ seq_printf(m, " %s", module_flags(mod, buf));
+--- a/kernel/sched_clock.c
++++ b/kernel/sched_clock.c
+@@ -37,7 +37,7 @@
+ */
+ unsigned long long __attribute__((weak)) sched_clock(void)
+ {
+- return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
++ return (get_jiffies_64() - INITIAL_JIFFIES) * (NSEC_PER_SEC / HZ);
+ }
+
+ static __read_mostly int sched_clock_running;
+--- a/lib/Kconfig.debug
++++ b/lib/Kconfig.debug
+@@ -549,7 +549,7 @@ config FRAME_POINTER
+ bool "Compile the kernel with frame pointers"
+ depends on DEBUG_KERNEL && \
+ (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || \
+- AVR32 || SUPERH || BLACKFIN || MN10300)
++ AVR32 || SUPERH || BLACKFIN || MN10300 || UBICOM32)
+ default y if DEBUG_INFO && UML
+ help
+ If you say Y here the resulting kernel image will be slightly larger
+--- a/mm/Makefile
++++ b/mm/Makefile
+@@ -34,3 +34,5 @@ obj-$(CONFIG_MIGRATION) += migrate.o
+ obj-$(CONFIG_SMP) += allocpercpu.o
+ obj-$(CONFIG_QUICKLIST) += quicklist.o
+ obj-$(CONFIG_CGROUP_MEM_RES_CTLR) += memcontrol.o page_cgroup.o
++
++CFLAGS_slab.o := $(PROFILING) -O2
+--- a/scripts/mod/file2alias.c
++++ b/scripts/mod/file2alias.c
+@@ -753,6 +753,15 @@ void handle_moddevtable(struct module *m
+ + sym->st_value;
+ }
+
++ /*
++ * somehow our gcc is not generating st_size correctly and set 0 for some symbols.
++ * and 0 size will break do_table since it adjust size to (size - id_size)
++ * this is to make sure st_size fall in range.
++ */
++ if (sym->st_size == 0 || sym->st_size > info->sechdrs[sym->st_shndx].sh_size) {
++ sym->st_size = info->sechdrs[sym->st_shndx].sh_size;
++ }
++
+ if (sym_is(symname, "__mod_pci_device_table"))
+ do_table(symval, sym->st_size,
+ sizeof(struct pci_device_id), "pci",
+--- a/sound/Kconfig
++++ b/sound/Kconfig
+@@ -80,6 +80,8 @@ source "sound/parisc/Kconfig"
+
+ source "sound/soc/Kconfig"
+
++source "sound/ubicom32/Kconfig"
++
+ endif # SND
+
+ menuconfig SOUND_PRIME
+--- a/sound/Makefile
++++ b/sound/Makefile
+@@ -6,7 +6,7 @@ obj-$(CONFIG_SOUND_PRIME) += sound_firmw
+ obj-$(CONFIG_SOUND_PRIME) += oss/
+ obj-$(CONFIG_DMASOUND) += oss/
+ obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \
+- sparc/ spi/ parisc/ pcmcia/ mips/ soc/
++ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ ubicom32/
+ obj-$(CONFIG_SND_AOA) += aoa/
+
+ # This one must be compilable even if sound is configured out
+--- /dev/null
++++ b/sound/ubicom32/Kconfig
+@@ -0,0 +1,36 @@
++# ALSA Ubicom32 drivers
++
++menuconfig SND_UBI32
++ tristate "Ubicom32 sound devices"
++ select SND_PCM
++ default n
++ help
++ Say Y here to include support for audio on the Ubicom32 platform.
++ To compile this driver as a module, say M here: the module will be
++ called snd_ubi32.
++
++if SND_UBI32
++
++config SND_UBI32_AUDIO_GENERIC
++ bool "Generic Codec Support"
++ default n
++ help
++ Generic codecs
++
++comment "I2C Based Codecs"
++
++config SND_UBI32_AUDIO_CS4350
++ bool "Cirrus Logic CS4350 DAC"
++ depends on I2C
++ default n
++ help
++ Support for the Cirrus Logic CS4350 DAC.
++
++config SND_UBI32_AUDIO_CS4384
++ bool "Cirrus Logic CS4384 DAC"
++ depends on I2C
++ default n
++ help
++ Support for the Cirrus Logic CS4384 DAC.
++
++endif #SND_UBI32
+--- /dev/null
++++ b/sound/ubicom32/Makefile
+@@ -0,0 +1,39 @@
++#
++# sound/ubicom32/Makefile
++# Makefile for ALSA
++#
++# (C) Copyright 2009, Ubicom, Inc.
++#
++# This file is part of the Ubicom32 Linux Kernel Port.
++#
++# The Ubicom32 Linux Kernel Port is free software: you can redistribute
++# it and/or modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation, either version 2 of the
++# License, or (at your option) any later version.
++#
++# The Ubicom32 Linux Kernel Port is distributed in the hope that it
++# will be useful, but WITHOUT ANY WARRANTY; without even the implied
++# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++# the GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with the Ubicom32 Linux Kernel Port. If not,
++# see <http://www.gnu.org/licenses/>.
++#
++# Ubicom32 implementation derived from (with many thanks):
++# arch/m68knommu
++# arch/blackfin
++# arch/parisc
++#
++
++CFLAGS_ubi32.o += -O2
++snd-ubi32-pcm-objs := ubi32-pcm.o
++snd-ubi32-generic-objs := ubi32-generic.o
++snd-ubi32-cs4350-objs := ubi32-cs4350.o
++snd-ubi32-cs4384-objs := ubi32-cs4384.o
++
++# Toplevel Module Dependency
++obj-$(CONFIG_SND_UBI32) += snd-ubi32-pcm.o
++obj-$(CONFIG_SND_UBI32_AUDIO_GENERIC) += snd-ubi32-generic.o
++obj-$(CONFIG_SND_UBI32_AUDIO_CS4350) += snd-ubi32-cs4350.o
++obj-$(CONFIG_SND_UBI32_AUDIO_CS4384) += snd-ubi32-cs4384.o
+--- /dev/null
++++ b/sound/ubicom32/ubi32-cs4350.c
+@@ -0,0 +1,286 @@
++/*
++ * sound/ubicom32/ubi32-cs4350.c
++ * Interface to ubicom32 virtual audio peripheral - using CS4350 DAC
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/i2c.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/initval.h>
++#include "ubi32.h"
++
++#define DRIVER_NAME "snd-ubi32-cs4350"
++
++/*
++ * Module properties
++ */
++static const struct i2c_device_id snd_ubi32_cs4350_id[] = {
++ {"cs4350", 0 },
++ { }
++};
++MODULE_DEVICE_TABLE(i2c, ubicom32audio_id);
++
++static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
++
++/*
++ * snd_ubi32_cs4350_free
++ * Card private data free function
++ */
++void snd_ubi32_cs4350_free(struct snd_card *card)
++{
++ //struct ubi32_snd_priv *ubi32_priv = card->private_data;
++
++ /*
++ * Free all the fields in the snd_ubi32_priv struct
++ */
++ // Nothing to free at this time because ubi32_priv just maintains pointers
++}
++
++/*
++ * snd_ubi32_cs4350_dac_init
++ */
++static int snd_ubi32_cs4350_dac_init(struct i2c_client *client, const struct i2c_device_id *id)
++{
++ int ret;
++ char send[2];
++ char recv[8];
++
++ /*
++ * Initialize the CS4350 DAC over the I2C interface
++ */
++ snd_printk(KERN_INFO "Initializing CS4350 DAC\n");
++
++ /*
++ * Register 0x01: device/revid
++ */
++ send[0] = 0x01;
++ ret = i2c_master_send(client, send, 1);
++ if (ret != 1) {
++ snd_printk(KERN_ERR "Failed 1st attempt to write to CS4350 register 0x01\n");
++ goto fail;
++ }
++ ret = i2c_master_recv(client, recv, 1);
++ if (ret != 1) {
++ snd_printk(KERN_ERR "Failed initial read of CS4350 registers\n");
++ goto fail;
++ }
++ snd_printk(KERN_INFO "CS4350 DAC Device/Rev: %08x\n", recv[0]);
++
++ /*
++ * Register 0x02: Mode control
++ * I2S DIF[2:0] = 001, no De-Emphasis, Auto speed mode
++ */
++ send[0] = 0x02;
++ send[1] = 0x10;
++ ret = i2c_master_send(client, send, 2);
++ if (ret != 2) {
++ snd_printk(KERN_ERR "Failed to set CS4350 to I2S mode\n");
++ goto fail;
++ }
++
++ /*
++ * Register 0x05/0x06: Volume control
++ * Channel A volume set to -16 dB
++ * Channel B volume set to -16 dB
++ */
++ send[0] = 0x05;
++ send[1] = 0x00;
++ ret = i2c_master_send(client, send, 2);
++ if (ret != 2) {
++ snd_printk(KERN_ERR "Failed to set channel A volume on CS4350\n");
++ goto fail;
++ }
++
++ send[0] = 0x06;
++ send[1] = 0x00;
++ ret = i2c_master_send(client, send, 2);
++ if (ret != 2) {
++ snd_printk(KERN_ERR "Failed to set channel A volume on CS4350\n");
++ goto fail;
++ }
++
++ /*
++ * Make sure the changes took place, this helps verify we are talking to
++ * the correct chip.
++ */
++ send[0] = 0x81;
++ ret = i2c_master_send(client, send, 1);
++ if (ret != 1) {
++ snd_printk(KERN_ERR "Failed to initiate readback\n");
++ goto fail;
++ }
++
++ ret = i2c_master_recv(client, recv, 8);
++ if (ret != 8) {
++ snd_printk(KERN_ERR "Failed second read of CS4350 registers\n");
++ goto fail;
++ }
++
++ if ((recv[1] != 0x10) || (recv[4] != 0x00) || (recv[5] != 0x00)) {
++ snd_printk(KERN_ERR "Failed to initialize CS4350 DAC\n");
++ goto fail;
++ }
++
++ snd_printk(KERN_INFO "CS4350 DAC Initialized\n");
++ return 0;
++
++fail:
++ return -ENODEV;
++}
++
++/*
++ * snd_ubi32_cs4350_i2c_probe
++ */
++static int snd_ubi32_cs4350_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
++{
++ struct snd_card *card;
++ struct ubi32_snd_priv *ubi32_priv;
++ int err, ret;
++ struct platform_device *pdev;
++
++ pdev = client->dev.platform_data;
++ if (!pdev) {
++ return -ENODEV;
++ }
++
++ /*
++ * Initialize the CS4350 DAC
++ */
++ ret = snd_ubi32_cs4350_dac_init(client, id);
++ if (ret < 0) {
++ /*
++ * Initialization failed. Propagate the error.
++ */
++ return ret;
++ }
++
++ /*
++ * Create a snd_card structure
++ */
++ card = snd_card_new(index, "Ubi32-CS4350", THIS_MODULE, sizeof(struct ubi32_snd_priv));
++ if (card == NULL) {
++ return -ENOMEM;
++ }
++
++ card->private_free = snd_ubi32_cs4350_free; /* Not sure if correct */
++ ubi32_priv = card->private_data;
++
++ /*
++ * CS4350 DAC has a minimum sample rate of 30khz and an
++ * upper limit of 216khz for it's auto-detect.
++ */
++ ubi32_priv->min_sample_rate = 30000;
++ ubi32_priv->max_sample_rate = 216000;
++
++ /*
++ * Initialize the snd_card's private data structure
++ */
++ ubi32_priv->card = card;
++
++ /*
++ * Create the new PCM instance
++ */
++ err = snd_ubi32_pcm_probe(ubi32_priv, pdev);
++ if (err < 0) {
++ snd_card_free(card);
++ return err; /* What is err? Need to include correct file */
++ }
++
++ strcpy(card->driver, "Ubi32-CS4350");
++ strcpy(card->shortname, "Ubi32-CS4350");
++ sprintf(card->longname, "%s at sendirq=%d recvirq=%d", card->shortname, ubi32_priv->tx_irq, ubi32_priv->rx_irq);
++
++ snd_card_set_dev(card, &client->dev);
++
++ /*
++ * Register the sound card
++ */
++ if ((err = snd_card_register(card)) != 0) {
++ snd_printk(KERN_INFO "snd_card_register error\n");
++ }
++
++ /*
++ * Store card for access from other methods
++ */
++ i2c_set_clientdata(client, card);
++
++ return 0;
++}
++
++/*
++ * snd_ubi32_cs4350_i2c_remove
++ */
++static int __devexit snd_ubi32_cs4350_i2c_remove(struct i2c_client *client)
++{
++ struct snd_card *card;
++ struct ubi32_snd_priv *ubi32_priv;
++
++ card = i2c_get_clientdata(client);
++
++ ubi32_priv = card->private_data;
++ snd_ubi32_pcm_remove(ubi32_priv);
++
++ snd_card_free(i2c_get_clientdata(client));
++ i2c_set_clientdata(client, NULL);
++
++ return 0;
++}
++
++/*
++ * I2C driver description
++ */
++static struct i2c_driver snd_ubi32_cs4350_driver = {
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++ .id_table = snd_ubi32_cs4350_id,
++ .probe = snd_ubi32_cs4350_i2c_probe,
++ .remove = __devexit_p(snd_ubi32_cs4350_i2c_remove),
++};
++
++/*
++ * Driver init
++ */
++static int __init snd_ubi32_cs4350_init(void)
++{
++ return i2c_add_driver(&snd_ubi32_cs4350_driver);
++}
++module_init(snd_ubi32_cs4350_init);
++
++/*
++ * snd_ubi32_cs4350_exit
++ */
++static void __exit snd_ubi32_cs4350_exit(void)
++{
++ i2c_del_driver(&snd_ubi32_cs4350_driver);
++}
++module_exit(snd_ubi32_cs4350_exit);
++
++/*
++ * Module properties
++ */
++MODULE_ALIAS("i2c:" DRIVER_NAME);
++MODULE_AUTHOR("Patrick Tjin");
++MODULE_DESCRIPTION("Driver for Ubicom32 audio devices CS4350");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/ubicom32/ubi32-cs4384.c
+@@ -0,0 +1,982 @@
++/*
++ * sound/ubicom32/ubi32-cs4384.c
++ * Interface to ubicom32 virtual audio peripheral - using CS4384 DAC
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/i2c.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/delay.h>
++#include <sound/core.h>
++#include <sound/tlv.h>
++#include <sound/control.h>
++#include <sound/pcm.h>
++#include <sound/initval.h>
++#include <asm/ip5000.h>
++#include <asm/gpio.h>
++#include <asm/audio_tio.h>
++#include <asm/ubi32-cs4384.h>
++#include "ubi32.h"
++
++#define DRIVER_NAME "snd-ubi32-cs4384"
++
++/*
++ * Module properties
++ */
++static const struct i2c_device_id snd_ubi32_cs4384_id[] = {
++ {"cs4384", 0 },
++ { }
++};
++MODULE_DEVICE_TABLE(i2c, ubicom32audio_id);
++
++static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
++
++/*
++ * Mixer properties
++ */
++enum {
++ /*
++ * Be careful of changing the order of these IDs, they
++ * are used to index the volume array.
++ */
++ SND_UBI32_CS4384_FRONT_ID,
++ SND_UBI32_CS4384_SURROUND_ID,
++ SND_UBI32_CS4384_CENTER_ID,
++ SND_UBI32_CS4384_LFE_ID,
++ SND_UBI32_CS4384_REAR_ID,
++
++ /*
++ * This should be the last ID
++ */
++ SND_UBI32_CS4384_LAST_ID,
++};
++static const u8_t snd_ubi32_cs4384_ch_ofs[] = {0, 2, 4, 5, 6};
++
++static const DECLARE_TLV_DB_SCALE(snd_ubi32_cs4384_db, -12750, 50, 0);
++
++#define snd_ubi32_cs4384_info_mute snd_ctl_boolean_stereo_info
++#define snd_ubi32_cs4384_info_mute_mono snd_ctl_boolean_mono_info
++
++/*
++ * Mixer controls
++ */
++static int snd_ubi32_cs4384_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo);
++static int snd_ubi32_cs4384_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
++static int snd_ubi32_cs4384_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
++static int snd_ubi32_cs4384_get_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
++static int snd_ubi32_cs4384_put_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
++
++/*
++ * Make sure to update these if the structure below is changed
++ */
++#define SND_UBI32_MUTE_CTL_START 5
++#define SND_UBI32_MUTE_CTL_END 9
++static struct snd_kcontrol_new snd_ubi32_cs4384_controls[] __devinitdata = {
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "Front Playback Volume",
++ .info = snd_ubi32_cs4384_info_volume,
++ .get = snd_ubi32_cs4384_get_volume,
++ .put = snd_ubi32_cs4384_put_volume,
++ .private_value = SND_UBI32_CS4384_FRONT_ID,
++ .tlv = {
++ .p = snd_ubi32_cs4384_db,
++ },
++ },
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "Surround Playback Volume",
++ .info = snd_ubi32_cs4384_info_volume,
++ .get = snd_ubi32_cs4384_get_volume,
++ .put = snd_ubi32_cs4384_put_volume,
++ .private_value = SND_UBI32_CS4384_SURROUND_ID,
++ .tlv = {
++ .p = snd_ubi32_cs4384_db,
++ },
++ },
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "Center Playback Volume",
++ .info = snd_ubi32_cs4384_info_volume,
++ .get = snd_ubi32_cs4384_get_volume,
++ .put = snd_ubi32_cs4384_put_volume,
++ .private_value = SND_UBI32_CS4384_CENTER_ID,
++ .tlv = {
++ .p = snd_ubi32_cs4384_db,
++ },
++ },
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "LFE Playback Volume",
++ .info = snd_ubi32_cs4384_info_volume,
++ .get = snd_ubi32_cs4384_get_volume,
++ .put = snd_ubi32_cs4384_put_volume,
++ .private_value = SND_UBI32_CS4384_LFE_ID,
++ .tlv = {
++ .p = snd_ubi32_cs4384_db,
++ },
++ },
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "Rear Playback Volume",
++ .info = snd_ubi32_cs4384_info_volume,
++ .get = snd_ubi32_cs4384_get_volume,
++ .put = snd_ubi32_cs4384_put_volume,
++ .private_value = SND_UBI32_CS4384_REAR_ID,
++ .tlv = {
++ .p = snd_ubi32_cs4384_db,
++ },
++ },
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "Front Playback Switch",
++ .info = snd_ubi32_cs4384_info_mute,
++ .get = snd_ubi32_cs4384_get_mute,
++ .put = snd_ubi32_cs4384_put_mute,
++ .private_value = SND_UBI32_CS4384_FRONT_ID,
++ },
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "Surround Playback Switch",
++ .info = snd_ubi32_cs4384_info_mute,
++ .get = snd_ubi32_cs4384_get_mute,
++ .put = snd_ubi32_cs4384_put_mute,
++ .private_value = SND_UBI32_CS4384_SURROUND_ID,
++ },
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "Center Playback Switch",
++ .info = snd_ubi32_cs4384_info_mute_mono,
++ .get = snd_ubi32_cs4384_get_mute,
++ .put = snd_ubi32_cs4384_put_mute,
++ .private_value = SND_UBI32_CS4384_CENTER_ID,
++ },
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "LFE Playback Switch",
++ .info = snd_ubi32_cs4384_info_mute_mono,
++ .get = snd_ubi32_cs4384_get_mute,
++ .put = snd_ubi32_cs4384_put_mute,
++ .private_value = SND_UBI32_CS4384_LFE_ID,
++ },
++ {
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
++ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
++ .name = "Rear Playback Switch",
++ .info = snd_ubi32_cs4384_info_mute,
++ .get = snd_ubi32_cs4384_get_mute,
++ .put = snd_ubi32_cs4384_put_mute,
++ .private_value = SND_UBI32_CS4384_REAR_ID,
++ },
++};
++
++/*
++ * Our private data
++ */
++struct snd_ubi32_cs4384_priv {
++ /*
++ * Array of current volumes
++ * (L, R, SL, SR, C, LFE, RL, RR)
++ */
++ uint8_t volume[8];
++
++ /*
++ * Bitmask of mutes
++ * MSB (RR, RL, LFE, C, SR, SL, R, L) LSB
++ */
++ uint8_t mute;
++
++ /*
++ * Array of controls
++ */
++ struct snd_kcontrol *kctls[ARRAY_SIZE(snd_ubi32_cs4384_controls)];
++
++ /*
++ * Lock to protect our card
++ */
++ spinlock_t lock;
++};
++
++/*
++ * snd_ubi32_cs4384_info_volume
++ */
++static int snd_ubi32_cs4384_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
++{
++ unsigned int id = (unsigned int)kcontrol->private_value;
++
++ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
++ uinfo->count = 1;
++ if ((id != SND_UBI32_CS4384_LFE_ID) &&
++ (id != SND_UBI32_CS4384_CENTER_ID)) {
++ uinfo->count = 2;
++ }
++ uinfo->value.integer.min = 0;
++ uinfo->value.integer.max = 255;
++ return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_get_volume
++ */
++static int snd_ubi32_cs4384_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
++{
++ struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol);
++ struct snd_ubi32_cs4384_priv *cs4384_priv;
++ unsigned int id = (unsigned int)kcontrol->private_value;
++ int ch = snd_ubi32_cs4384_ch_ofs[id];
++ unsigned long flags;
++
++ if (id >= SND_UBI32_CS4384_LAST_ID) {
++ return -EINVAL;
++ }
++
++ cs4384_priv = snd_ubi32_priv_get_drv(priv);
++
++ spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++ ucontrol->value.integer.value[0] = cs4384_priv->volume[ch];
++ if ((id != SND_UBI32_CS4384_LFE_ID) &&
++ (id != SND_UBI32_CS4384_CENTER_ID)) {
++ ch++;
++ ucontrol->value.integer.value[1] = cs4384_priv->volume[ch];
++ }
++
++ spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++ return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_put_volume
++ */
++static int snd_ubi32_cs4384_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
++{
++ struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol);
++ struct i2c_client *client = (struct i2c_client *)priv->client;
++ struct snd_ubi32_cs4384_priv *cs4384_priv;
++ unsigned int id = (unsigned int)kcontrol->private_value;
++ int ch = snd_ubi32_cs4384_ch_ofs[id];
++ unsigned long flags;
++ unsigned char send[3];
++ int nch;
++ int ret = -EINVAL;
++
++ if (id >= SND_UBI32_CS4384_LAST_ID) {
++ return -EINVAL;
++ }
++
++ cs4384_priv = snd_ubi32_priv_get_drv(priv);
++
++ spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++ send[0] = 0;
++ switch (id) {
++ case SND_UBI32_CS4384_REAR_ID:
++ send[0] = 0x06;
++
++ /*
++ * Fall through
++ */
++
++ case SND_UBI32_CS4384_SURROUND_ID:
++ send[0] += 0x03;
++
++ /*
++ * Fall through
++ */
++
++ case SND_UBI32_CS4384_FRONT_ID:
++ send[0] += 0x8B;
++ nch = 2;
++ send[1] = 255 - (ucontrol->value.integer.value[0] & 0xFF);
++ send[2] = 255 - (ucontrol->value.integer.value[1] & 0xFF);
++ cs4384_priv->volume[ch++] = send[1];
++ cs4384_priv->volume[ch] = send[2];
++ break;
++
++ case SND_UBI32_CS4384_LFE_ID:
++ send[0] = 0x81;
++
++ /*
++ * Fall through
++ */
++
++ case SND_UBI32_CS4384_CENTER_ID:
++ send[0] += 0x11;
++ nch = 1;
++ send[1] = 255 - (ucontrol->value.integer.value[0] & 0xFF);
++ cs4384_priv->volume[ch] = send[1];
++ break;
++
++ default:
++ spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++ goto done;
++
++ }
++
++ /*
++ * Send the volume to the chip
++ */
++ nch++;
++ ret = i2c_master_send(client, send, nch);
++ if (ret != nch) {
++ snd_printk(KERN_ERR "Failed to set volume on CS4384\n");
++ }
++
++done:
++ spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++ return ret;
++}
++
++/*
++ * snd_ubi32_cs4384_get_mute
++ */
++static int snd_ubi32_cs4384_get_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
++{
++ struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol);
++ struct snd_ubi32_cs4384_priv *cs4384_priv;
++ unsigned int id = (unsigned int)kcontrol->private_value;
++ int ch = snd_ubi32_cs4384_ch_ofs[id];
++ unsigned long flags;
++
++ if (id >= SND_UBI32_CS4384_LAST_ID) {
++ return -EINVAL;
++ }
++
++ cs4384_priv = snd_ubi32_priv_get_drv(priv);
++
++ spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++ ucontrol->value.integer.value[0] = !(cs4384_priv->mute & (1 << ch));
++
++ if ((id != SND_UBI32_CS4384_LFE_ID) &&
++ (id != SND_UBI32_CS4384_CENTER_ID)) {
++ ch++;
++ ucontrol->value.integer.value[1] = !(cs4384_priv->mute & (1 << ch));
++ }
++
++ spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++ return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_put_mute
++ */
++static int snd_ubi32_cs4384_put_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
++{
++ struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol);
++ struct i2c_client *client = (struct i2c_client *)priv->client;
++ struct snd_ubi32_cs4384_priv *cs4384_priv;
++ unsigned int id = (unsigned int)kcontrol->private_value;
++ int ch = snd_ubi32_cs4384_ch_ofs[id];
++ unsigned long flags;
++ unsigned char send[2];
++ int ret = -EINVAL;
++
++ if (id >= SND_UBI32_CS4384_LAST_ID) {
++ return -EINVAL;
++ }
++
++ cs4384_priv = snd_ubi32_priv_get_drv(priv);
++
++ spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++ if (ucontrol->value.integer.value[0]) {
++ cs4384_priv->mute &= ~(1 << ch);
++ } else {
++ cs4384_priv->mute |= (1 << ch);
++ }
++
++ if ((id != SND_UBI32_CS4384_LFE_ID) && (id != SND_UBI32_CS4384_CENTER_ID)) {
++ ch++;
++ if (ucontrol->value.integer.value[1]) {
++ cs4384_priv->mute &= ~(1 << ch);
++ } else {
++ cs4384_priv->mute |= (1 << ch);
++ }
++ }
++
++ /*
++ * Update the chip's mute reigster
++ */
++ send[0] = 0x09;
++ send[1] = cs4384_priv->mute;
++ ret = i2c_master_send(client, send, 2);
++ if (ret != 2) {
++ snd_printk(KERN_ERR "Failed to set mute on CS4384\n");
++ }
++
++ spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++ return ret;
++}
++
++/*
++ * snd_ubi32_cs4384_mixer
++ * Setup the mixer controls
++ */
++static int __devinit snd_ubi32_cs4384_mixer(struct ubi32_snd_priv *priv)
++{
++ struct snd_card *card = priv->card;
++ struct snd_ubi32_cs4384_priv *cs4384_priv;
++ int i;
++
++ cs4384_priv = snd_ubi32_priv_get_drv(priv);
++ for (i = 0; i < ARRAY_SIZE(snd_ubi32_cs4384_controls); i++) {
++ int err;
++
++ cs4384_priv->kctls[i] = snd_ctl_new1(&snd_ubi32_cs4384_controls[i], priv);
++ err = snd_ctl_add(card, cs4384_priv->kctls[i]);
++ if (err) {
++ snd_printk(KERN_WARNING "Failed to add control %d\n", i);
++ return err;
++ }
++ }
++ return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_free
++ * Card private data free function
++ */
++void snd_ubi32_cs4384_free(struct snd_card *card)
++{
++ struct snd_ubi32_cs4384_priv *cs4384_priv;
++ struct ubi32_snd_priv *ubi32_priv;
++
++ ubi32_priv = card->private_data;
++ cs4384_priv = snd_ubi32_priv_get_drv(ubi32_priv);
++ if (cs4384_priv) {
++ kfree(cs4384_priv);
++ }
++}
++
++/*
++ * snd_ubi32_cs4384_setup_mclk
++ */
++static int snd_ubi32_cs4384_setup_mclk(struct ubi32_cs4384_platform_data *pdata)
++{
++ struct ubicom32_io_port *ioa = (struct ubicom32_io_port *)RA;
++ struct ubicom32_io_port *ioc = (struct ubicom32_io_port *)RC;
++ struct ubicom32_io_port *ioh = (struct ubicom32_io_port *)RH;
++ unsigned int ctl0;
++ unsigned int ctlx;
++ unsigned int div;
++
++ div = pdata->mclk_entries[0].div;
++
++ ctl0 = (1 << 13);
++ ctlx = ((div - 1) << 16) | (div / 2);
++
++ switch (pdata->mclk_src) {
++ case UBI32_CS4384_MCLK_PWM_0:
++ ioc->function |= 2;
++ ioc->ctl0 |= ctl0;
++ ioc->ctl1 = ctlx;
++ return 0;
++
++ case UBI32_CS4384_MCLK_PWM_1:
++ ioc->function |= 2;
++ ioc->ctl0 |= ctl0 << 16;
++ ioc->ctl2 = ctlx;
++ return 0;
++
++ case UBI32_CS4384_MCLK_PWM_2:
++ ioh->ctl0 |= ctl0;
++ ioh->ctl1 = ctlx;
++ return 0;
++
++ case UBI32_CS4384_MCLK_CLKDIV_1:
++ ioa->gpio_mask &= (1 << 7);
++ ioa->ctl1 &= ~(0x7F << 14);
++ ioa->ctl1 |= ((div - 1) << 14);
++ return 0;
++
++ case UBI32_CS4384_MCLK_OTHER:
++ return 0;
++ }
++
++ return 1;
++}
++
++/*
++ * snd_ubi32_cs4384_set_rate
++ */
++static int snd_ubi32_cs4384_set_rate(struct ubi32_snd_priv *priv, int rate)
++{
++ struct ubi32_cs4384_platform_data *cpd = priv->pdata->priv_data;
++ struct ubicom32_io_port *ioa = (struct ubicom32_io_port *)RA;
++ struct ubicom32_io_port *ioc = (struct ubicom32_io_port *)RC;
++ struct ubicom32_io_port *ioh = (struct ubicom32_io_port *)RH;
++ unsigned int ctl;
++ unsigned int div = 0;
++ const u16_t mult[] = {64, 96, 128, 192, 256, 384, 512, 768, 1024};
++ int i;
++ int j;
++
++
++ for (i = 0; i < sizeof(mult) / sizeof(u16_t); i++) {
++ for (j = 0; j < cpd->n_mclk; j++) {
++ if (((unsigned int)rate * (unsigned int)mult[i]) ==
++ cpd->mclk_entries[j].rate) {
++ div = cpd->mclk_entries[j].div;
++ break;
++ }
++ }
++ }
++
++ ctl = ((div - 1) << 16) | (div / 2);
++
++ switch (cpd->mclk_src) {
++ case UBI32_CS4384_MCLK_PWM_0:
++ ioc->ctl1 = ctl;
++ return 0;
++
++ case UBI32_CS4384_MCLK_PWM_1:
++ ioc->ctl2 = ctl;
++ return 0;
++
++ case UBI32_CS4384_MCLK_PWM_2:
++ ioh->ctl1 = ctl;
++ return 0;
++
++ case UBI32_CS4384_MCLK_CLKDIV_1:
++ ioa->ctl1 &= ~(0x7F << 14);
++ ioa->ctl1 |= ((div - 1) << 14);
++ return 0;
++
++ case UBI32_CS4384_MCLK_OTHER:
++ return 0;
++ }
++
++ return 1;
++}
++
++/*
++ * snd_ubi32_cs4384_set_channels
++ * Mute unused channels
++ */
++static int snd_ubi32_cs4384_set_channels(struct ubi32_snd_priv *priv, int channels)
++{
++ struct i2c_client *client = (struct i2c_client *)priv->client;
++ struct snd_ubi32_cs4384_priv *cs4384_priv;
++ unsigned char send[2];
++ int ret;
++ int i;
++ unsigned long flags;
++
++ /*
++ * Only support 0, 2, 4, 6, 8 channels
++ */
++ if ((channels > 8) || (channels & 1)) {
++ return -EINVAL;
++ }
++
++ cs4384_priv = snd_ubi32_priv_get_drv(priv);
++ spin_lock_irqsave(&cs4384_priv->lock, flags);
++
++ /*
++ * Address 09h, Mute control
++ */
++ send[0] = 0x09;
++ send[1] = (unsigned char)(0xFF << channels);
++
++ ret = i2c_master_send(client, send, 2);
++
++ spin_unlock_irqrestore(&cs4384_priv->lock, flags);
++
++ /*
++ * Notify the system that we changed the mutes
++ */
++ cs4384_priv->mute = (unsigned char)(0xFF << channels);
++
++ for (i = SND_UBI32_MUTE_CTL_START; i < SND_UBI32_MUTE_CTL_END; i++) {
++ snd_ctl_notify(priv->card, SNDRV_CTL_EVENT_MASK_VALUE,
++ &cs4384_priv->kctls[i]->id);
++ }
++
++ if (ret != 2) {
++ return -ENXIO;
++ }
++
++ return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_dac_init
++ */
++static int snd_ubi32_cs4384_dac_init(struct i2c_client *client, const struct i2c_device_id *id)
++{
++ int ret;
++ unsigned char send[2];
++ unsigned char recv[2];
++
++ /*
++ * Initialize the CS4384 DAC over the I2C interface
++ */
++ snd_printk(KERN_INFO "Initializing CS4384 DAC\n");
++
++ /*
++ * Register 0x01: device/revid
++ */
++ send[0] = 0x01;
++ ret = i2c_master_send(client, send, 1);
++ if (ret != 1) {
++ snd_printk(KERN_ERR "Failed 1st attempt to write to CS4384 register 0x01\n");
++ goto fail;
++ }
++ ret = i2c_master_recv(client, recv, 1);
++ if (ret != 1) {
++ snd_printk(KERN_ERR "Failed initial read of CS4384 registers\n");
++ goto fail;
++ }
++ snd_printk(KERN_INFO "CS4384 DAC Device/Rev: %08x\n", recv[0]);
++
++ /*
++ * Register 0x02: Mode Control 1
++ * Control Port Enable, PCM, All DACs enabled, Power Down
++ */
++ send[0] = 0x02;
++ send[1] = 0x81;
++ ret = i2c_master_send(client, send, 2);
++ if (ret != 2) {
++ snd_printk(KERN_ERR "Failed to set CPEN CS4384\n");
++ goto fail;
++ }
++
++ /*
++ * Register 0x08: Ramp and Mute
++ * RMP_UP, RMP_DN, PAMUTE, DAMUTE
++ */
++ send[0] = 0x08;
++ send[1] = 0xBC;
++ ret = i2c_master_send(client, send, 2);
++ if (ret != 2) {
++ snd_printk(KERN_ERR "Failed to set CPEN CS4384\n");
++ goto fail;
++ }
++
++ /*
++ * Register 0x03: PCM Control
++ * I2S DIF[3:0] = 0001, no De-Emphasis, Auto speed mode
++ */
++ send[0] = 0x03;
++ send[1] = 0x13;
++ ret = i2c_master_send(client, send, 2);
++ if (ret != 2) {
++ snd_printk(KERN_ERR "Failed to set CS4384 to I2S mode\n");
++ goto fail;
++ }
++
++ /*
++ * Register 0x0B/0x0C: Volume control A1/B1
++ * Register 0x0E/0x0F: Volume control A2/B2
++ * Register 0x11/0x12: Volume control A3/B3
++ * Register 0x14/0x15: Volume control A4/B4
++ */
++ send[0] = 0x80 | 0x0B;
++ send[1] = 0x00;
++ send[2] = 0x00;
++ ret = i2c_master_send(client, send, 3);
++ if (ret != 3) {
++ snd_printk(KERN_ERR "Failed to set ch1 volume on CS4384\n");
++ goto fail;
++ }
++
++ send[0] = 0x80 | 0x0E;
++ send[1] = 0x00;
++ send[2] = 0x00;
++ ret = i2c_master_send(client, send, 3);
++ if (ret != 3) {
++ snd_printk(KERN_ERR "Failed to set ch2 volume on CS4384\n");
++ goto fail;
++ }
++
++ send[0] = 0x80 | 0x11;
++ send[1] = 0x00;
++ send[2] = 0x00;
++ ret = i2c_master_send(client, send, 3);
++ if (ret != 3) {
++ snd_printk(KERN_ERR "Failed to set ch3 volume on CS4384\n");
++ goto fail;
++ }
++
++ send[0] = 0x80 | 0x14;
++ send[1] = 0x00;
++ send[2] = 0x00;
++ ret = i2c_master_send(client, send, 3);
++ if (ret != 3) {
++ snd_printk(KERN_ERR "Failed to set ch4 volume on CS4384\n");
++ goto fail;
++ }
++
++ /*
++ * Register 09h: Mute control
++ * Mute all (we will unmute channels as needed)
++ */
++ send[0] = 0x09;
++ send[1] = 0xFF;
++ ret = i2c_master_send(client, send, 2);
++ if (ret != 2) {
++ snd_printk(KERN_ERR "Failed to power up CS4384\n");
++ goto fail;
++ }
++
++ /*
++ * Register 0x02: Mode Control 1
++ * Control Port Enable, PCM, All DACs enabled, Power Up
++ */
++ send[0] = 0x02;
++ send[1] = 0x80;
++ ret = i2c_master_send(client, send, 2);
++ if (ret != 2) {
++ snd_printk(KERN_ERR "Failed to power up CS4384\n");
++ goto fail;
++ }
++
++ /*
++ * Make sure the changes took place, this helps verify we are talking to
++ * the correct chip.
++ */
++ send[0] = 0x80 | 0x03;
++ ret = i2c_master_send(client, send, 1);
++ if (ret != 1) {
++ snd_printk(KERN_ERR "Failed to initiate readback\n");
++ goto fail;
++ }
++
++ ret = i2c_master_recv(client, recv, 1);
++ if (ret != 1) {
++ snd_printk(KERN_ERR "Failed second read of CS4384 registers\n");
++ goto fail;
++ }
++
++ if (recv[0] != 0x13) {
++ snd_printk(KERN_ERR "Failed to initialize CS4384 DAC\n");
++ goto fail;
++ }
++
++ snd_printk(KERN_INFO "CS4384 DAC Initialized\n");
++ return 0;
++
++fail:
++ return -ENODEV;
++}
++
++/*
++ * snd_ubi32_cs4384_i2c_probe
++ */
++static int snd_ubi32_cs4384_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
++{
++ struct snd_card *card;
++ struct ubi32_snd_priv *ubi32_priv;
++ int err, ret;
++ struct platform_device *pdev;
++ struct ubi32_cs4384_platform_data *pdata;
++ struct snd_ubi32_cs4384_priv *cs4384_priv;
++
++ /*
++ * pdev is audio_tio
++ */
++ pdev = client->dev.platform_data;
++ if (!pdev) {
++ return -ENODEV;
++ }
++
++ /*
++ * pdev->dev.platform_data is ubi32-pcm platform_data
++ */
++ pdata = audio_tio_priv(pdev);
++ if (!pdata) {
++ return -ENODEV;
++ }
++
++ /*
++ * Initialize the CS4384 DAC
++ */
++ ret = snd_ubi32_cs4384_dac_init(client, id);
++ if (ret < 0) {
++ /*
++ * Initialization failed. Propagate the error.
++ */
++ return ret;
++ }
++
++ if (snd_ubi32_cs4384_setup_mclk(pdata)) {
++ return -EINVAL;
++ }
++
++ /*
++ * Create a snd_card structure
++ */
++ card = snd_card_new(index, "Ubi32-CS4384", THIS_MODULE, sizeof(struct ubi32_snd_priv));
++ if (card == NULL) {
++ return -ENOMEM;
++ }
++
++ card->private_free = snd_ubi32_cs4384_free;
++ ubi32_priv = card->private_data;
++
++ /*
++ * Initialize the snd_card's private data structure
++ */
++ ubi32_priv->card = card;
++ ubi32_priv->client = client;
++ ubi32_priv->set_channels = snd_ubi32_cs4384_set_channels;
++ ubi32_priv->set_rate = snd_ubi32_cs4384_set_rate;
++
++ /*
++ * CS4384 DAC has a minimum sample rate of 4khz and an
++ * upper limit of 216khz for it's auto-detect.
++ */
++ ubi32_priv->min_sample_rate = 4000;
++ ubi32_priv->max_sample_rate = 216000;
++
++ /*
++ * Create our private data (to manage volume, etc)
++ */
++ cs4384_priv = kzalloc(sizeof(struct snd_ubi32_cs4384_priv), GFP_KERNEL);
++ if (!cs4384_priv) {
++ snd_card_free(card);
++ return -ENOMEM;
++ }
++ snd_ubi32_priv_set_drv(ubi32_priv, cs4384_priv);
++ spin_lock_init(&cs4384_priv->lock);
++
++ /*
++ * We start off all muted and max volume
++ */
++ cs4384_priv->mute = 0xFF;
++ memset(cs4384_priv->volume, 0xFF, 8);
++
++ /*
++ * Create the new PCM instance
++ */
++ err = snd_ubi32_pcm_probe(ubi32_priv, pdev);
++ if (err < 0) {
++ snd_card_free(card);
++ return err; /* What is err? Need to include correct file */
++ }
++
++ strcpy(card->driver, "Ubi32-CS4384");
++ strcpy(card->shortname, "Ubi32-CS4384");
++ sprintf(card->longname, "%s at sendirq=%d recvirq=%d", card->shortname, ubi32_priv->tx_irq, ubi32_priv->rx_irq);
++
++ snd_card_set_dev(card, &client->dev);
++
++ /*
++ * Set up the mixer
++ */
++ snd_ubi32_cs4384_mixer(ubi32_priv);
++
++ /*
++ * Register the sound card
++ */
++ if ((err = snd_card_register(card)) != 0) {
++ snd_printk(KERN_INFO "snd_card_register error\n");
++ }
++
++ /*
++ * Store card for access from other methods
++ */
++ i2c_set_clientdata(client, card);
++
++ return 0;
++}
++
++/*
++ * snd_ubi32_cs4384_i2c_remove
++ */
++static int __devexit snd_ubi32_cs4384_i2c_remove(struct i2c_client *client)
++{
++ struct snd_card *card;
++ struct ubi32_snd_priv *ubi32_priv;
++
++ card = i2c_get_clientdata(client);
++
++ ubi32_priv = card->private_data;
++ snd_ubi32_pcm_remove(ubi32_priv);
++
++ snd_card_free(i2c_get_clientdata(client));
++ i2c_set_clientdata(client, NULL);
++
++ return 0;
++}
++
++/*
++ * I2C driver description
++ */
++static struct i2c_driver snd_ubi32_cs4384_driver = {
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++ .id_table = snd_ubi32_cs4384_id,
++ .probe = snd_ubi32_cs4384_i2c_probe,
++ .remove = __devexit_p(snd_ubi32_cs4384_i2c_remove),
++};
++
++/*
++ * Driver init
++ */
++static int __init snd_ubi32_cs4384_init(void)
++{
++ return i2c_add_driver(&snd_ubi32_cs4384_driver);
++}
++module_init(snd_ubi32_cs4384_init);
++
++/*
++ * snd_ubi32_cs4384_exit
++ */
++static void __exit snd_ubi32_cs4384_exit(void)
++{
++ i2c_del_driver(&snd_ubi32_cs4384_driver);
++}
++module_exit(snd_ubi32_cs4384_exit);
++
++/*
++ * Module properties
++ */
++MODULE_ALIAS("i2c:" DRIVER_NAME);
++MODULE_AUTHOR("Patrick Tjin");
++MODULE_DESCRIPTION("Driver for Ubicom32 audio devices CS4384");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/ubicom32/ubi32-generic.c
+@@ -0,0 +1,165 @@
++/*
++ * sound/ubicom32/ubi32-generic.c
++ * Interface to ubicom32 virtual audio peripheral
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/platform_device.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/initval.h>
++#include "ubi32.h"
++
++#define DRIVER_NAME "snd-ubi32-generic"
++
++/*
++ * Module properties
++ */
++static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
++
++/*
++ * Card private data free function
++ */
++void snd_ubi32_generic_free(struct snd_card *card)
++{
++ //struct ubi32_snd_priv *ubi32_priv = card->private_data;
++
++ /*
++ * Free all the fields in the snd_ubi32_priv struct
++ */
++ // Nothing to free at this time because ubi32_priv just maintains pointers
++}
++
++/*
++ * Ubicom audio driver probe() method. Args change depending on whether we use
++ * platform_device or i2c_device.
++ */
++static int snd_ubi32_generic_probe(struct platform_device *dev)
++{
++ struct snd_card *card;
++ struct ubi32_snd_priv *ubi32_priv;
++ int err;
++
++ /*
++ * Create a snd_card structure
++ */
++ card = snd_card_new(index, "Ubi32-Generic", THIS_MODULE, sizeof(struct ubi32_snd_priv));
++
++ if (card == NULL) {
++ return -ENOMEM;
++ }
++
++ card->private_free = snd_ubi32_generic_free; /* Not sure if correct */
++ ubi32_priv = card->private_data;
++
++ /*
++ * Initialize the snd_card's private data structure
++ */
++ ubi32_priv->card = card;
++
++ /*
++ * Create the new PCM instance
++ */
++ err = snd_ubi32_pcm_probe(ubi32_priv, dev);
++ if (err < 0) {
++ snd_card_free(card);
++ return err;
++ }
++
++ strcpy(card->driver, "Ubi32-Generic");
++ strcpy(card->shortname, "Ubi32-Generic");
++ sprintf(card->longname, "%s at sendirq=%d recvirq=%d", card->shortname, ubi32_priv->tx_irq, ubi32_priv->rx_irq);
++
++ snd_card_set_dev(card, &dev->dev);
++
++ /* Register the sound card */
++ if ((err = snd_card_register(card)) != 0) {
++ snd_printk(KERN_INFO "snd_card_register error\n");
++ }
++
++ /* Store card for access from other methods */
++ platform_set_drvdata(dev, card);
++
++ return 0;
++}
++
++/*
++ * Ubicom audio driver remove() method
++ */
++static int __devexit snd_ubi32_generic_remove(struct platform_device *dev)
++{
++ struct snd_card *card;
++ struct ubi32_snd_priv *ubi32_priv;
++
++ card = platform_get_drvdata(dev);
++ ubi32_priv = card->private_data;
++ snd_ubi32_pcm_remove(ubi32_priv);
++
++ snd_card_free(platform_get_drvdata(dev));
++ platform_set_drvdata(dev, NULL);
++ return 0;
++}
++
++/*
++ * Platform driver definition
++ */
++static struct platform_driver snd_ubi32_generic_driver = {
++ .driver = {
++ .name = DRIVER_NAME,
++ .owner = THIS_MODULE,
++ },
++ .probe = snd_ubi32_generic_probe,
++ .remove = __devexit_p(snd_ubi32_generic_remove),
++};
++
++/*
++ * snd_ubi32_generic_init
++ */
++static int __init snd_ubi32_generic_init(void)
++{
++ return platform_driver_register(&snd_ubi32_generic_driver);
++}
++module_init(snd_ubi32_generic_init);
++
++/*
++ * snd_ubi32_generic_exit
++ */
++static void __exit snd_ubi32_generic_exit(void)
++{
++ platform_driver_unregister(&snd_ubi32_generic_driver);
++}
++module_exit(snd_ubi32_generic_exit);
++
++/*
++ * Module properties
++ */
++//#if defined(CONFIG_SND_UBI32_AUDIO_I2C)
++//MODULE_ALIAS("i2c:snd-ubi32");
++//#endif
++MODULE_AUTHOR("Aaron Jow, Patrick Tjin");
++MODULE_DESCRIPTION("Driver for Ubicom32 audio devices");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/ubicom32/ubi32.h
+@@ -0,0 +1,96 @@
++/*
++ * sound/ubicom32/ubi32.h
++ * Common header file for all ubi32- sound drivers
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef _UBI32_H
++#define _UBI32_H
++
++#define SND_UBI32_DEBUG 0 // Debug flag
++
++#include <linux/platform_device.h>
++#include <asm/devtree.h>
++#include <asm/audio_tio.h>
++#include <asm/ubi32-pcm.h>
++
++struct ubi32_snd_priv;
++
++typedef int (*set_channels_t)(struct ubi32_snd_priv *priv, int channels);
++typedef int (*set_rate_t)(struct ubi32_snd_priv *priv, int rate);
++
++struct ubi32_snd_priv {
++ /*
++ * Any variables that are needed locally here but NOT in
++ * the VP itself should go in here.
++ */
++ struct snd_card *card;
++ struct snd_pcm *pcm;
++
++ /*
++ * DAC parameters. These are the parameters for the specific
++ * DAC we are driving. The I2S component can run at a range
++ * of frequencies, but the DAC may be limited. We may want
++ * to make this an array of some sort in the future?
++ *
++ * min/max_sample_rate if set to 0 are ignored.
++ */
++ int max_sample_rate;
++ int min_sample_rate;
++
++ /*
++ * The size a period (group) of audio samples. The VP does
++ * not need to know this; each DMA transfer is made to be
++ * one period.
++ */
++ u32_t period_size;
++
++ spinlock_t ubi32_lock;
++
++ struct audiotioregs *regs;
++ u8 tx_irq;
++ u8 rx_irq;
++
++ void *client;
++
++ /*
++ * Operations which the base DAC driver can implement
++ */
++ set_channels_t set_channels;
++ set_rate_t set_rate;
++
++ /*
++ * platform data
++ */
++ struct ubi32pcm_platform_data *pdata;
++
++ /*
++ * Private driver data (used for DAC driver control, etc)
++ */
++ void *drvdata;
++};
++
++#define snd_ubi32_priv_get_drv(priv) ((priv)->drvdata)
++#define snd_ubi32_priv_set_drv(priv, data) (((priv)->drvdata) = (void *)(data))
++
++extern int snd_ubi32_pcm_probe(struct ubi32_snd_priv *ubi32_priv, struct platform_device *pdev);
++extern void snd_ubi32_pcm_remove(struct ubi32_snd_priv *ubi32_priv);
++
++#endif
+--- /dev/null
++++ b/sound/ubicom32/ubi32-pcm.c
+@@ -0,0 +1,680 @@
++/*
++ * sound/ubicom32/ubi32-pcm.c
++ * Interface to ubicom32 virtual audio peripheral
++ *
++ * (C) Copyright 2009, Ubicom, Inc.
++ *
++ * This file is part of the Ubicom32 Linux Kernel Port.
++ *
++ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
++ * it and/or modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation, either version 2 of the
++ * License, or (at your option) any later version.
++ *
++ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
++ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
++ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
++ * the GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with the Ubicom32 Linux Kernel Port. If not,
++ * see <http://www.gnu.org/licenses/>.
++ *
++ * Ubicom32 implementation derived from (with many thanks):
++ * arch/m68knommu
++ * arch/blackfin
++ * arch/parisc
++ */
++
++#include <linux/interrupt.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <asm/ip5000.h>
++#include <asm/ubi32-pcm.h>
++#include <linux/dma-mapping.h>
++#include <linux/delay.h>
++#include "ubi32.h"
++
++struct ubi32_snd_runtime_data {
++ dma_addr_t dma_buffer; /* Physical address of DMA buffer */
++ dma_addr_t dma_buffer_end; /* First address beyond end of DMA buffer */
++ size_t period_size;
++ dma_addr_t period_ptr; /* Physical address of next period */
++ unsigned int flags;
++};
++
++static void snd_ubi32_vp_int_set(struct snd_pcm *pcm)
++{
++ struct ubi32_snd_priv *ubi32_priv = pcm->private_data;
++ ubicom32_set_interrupt(ubi32_priv->tx_irq);
++}
++
++static snd_pcm_uframes_t snd_ubi32_playback_pointer(struct snd_pcm_substream *substream)
++{
++ struct ubi32_snd_priv *ubi32_priv = snd_pcm_substream_chip(substream);
++ struct audiotioregs *regs = ubi32_priv->regs;
++ struct snd_pcm_runtime *runtime = substream->runtime;
++ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++
++ dma_addr_t read_pos;
++
++ snd_pcm_uframes_t frames;
++ if (!regs->current_read_pos) {
++ /*
++ * If current_read_pos is NULL (e.g. right after the HW is started or
++ * when the HW is stopped), then handle this case separately.
++ */
++ return 0;
++ }
++
++ read_pos = (dma_addr_t)regs->current_read_pos;
++ frames = bytes_to_frames(runtime, read_pos - ubi32_rd->dma_buffer);
++ if (frames == runtime->buffer_size) {
++ frames = 0;
++ }
++ return frames;
++}
++
++/*
++ * Audio trigger
++ */
++static int snd_ubi32_playback_trigger(struct snd_pcm_substream *substream, int cmd)
++{
++ struct ubi32_snd_priv *ubi32_priv = substream->pcm->private_data;
++ struct audiotioregs *regs = ubi32_priv->regs;
++ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++ int ret = 0;
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "snd_ubi32_playback_trigger cmd=%d=", cmd);
++#endif
++
++ if (regs->command != UBI32_AUDIO_CMD_NONE) {
++ snd_printk(KERN_WARNING "Can't send command to audio device at this time\n");
++ // Set a timer to call this function back later. How to do this?
++ return 0;
++ }
++
++ /*
++ * Set interrupt flag to indicate that we interrupted audio device
++ * to send a command
++ */
++ //regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++
++ switch (cmd) {
++ case SNDRV_PCM_TRIGGER_START:
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "START\n");
++#endif
++ /*
++ * Ready the DMA transfer
++ */
++ ubi32_rd->period_ptr = ubi32_rd->dma_buffer;
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "trigger period_ptr=%lx\n", (unsigned long)ubi32_rd->period_ptr);
++#endif
++ regs->playback_xfer_requests[0].ptr = (void *)ubi32_rd->period_ptr;
++ regs->playback_xfer_requests[0].ctr = ubi32_rd->period_size;
++ regs->playback_xfer_requests[0].active = 1;
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "xfer_request 0 ptr=0x%x ctr=%u\n", ubi32_rd->period_ptr, ubi32_rd->period_size);
++#endif
++
++ ubi32_rd->period_ptr += ubi32_rd->period_size;
++ regs->playback_xfer_requests[1].ptr = (void *)ubi32_rd->period_ptr;
++ regs->playback_xfer_requests[1].ctr = ubi32_rd->period_size;
++ regs->playback_xfer_requests[1].active = 1;
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "xfer_request 1 ptr=0x%x ctr=%u\n", ubi32_rd->period_ptr, ubi32_rd->period_size);
++#endif
++
++ /*
++ * Tell the VP that we want to begin playback by filling in the
++ * command field and then interrupting the audio VP
++ */
++ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++ regs->command = UBI32_AUDIO_CMD_START;
++ snd_ubi32_vp_int_set(substream->pcm);
++ break;
++
++ case SNDRV_PCM_TRIGGER_STOP:
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "STOP\n");
++#endif
++
++ /*
++ * Tell the VP that we want to stop playback by filling in the
++ * command field and then interrupting the audio VP
++ */
++ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++ regs->command = UBI32_AUDIO_CMD_STOP;
++ snd_ubi32_vp_int_set(substream->pcm);
++ break;
++
++ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "PAUSE_PUSH\n");
++#endif
++
++ /*
++ * Tell the VP that we want to pause playback by filling in the
++ * command field and then interrupting the audio VP
++ */
++ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++ regs->command = UBI32_AUDIO_CMD_PAUSE;
++ snd_ubi32_vp_int_set(substream->pcm);
++ break;
++
++ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "PAUSE_RELEASE\n");
++#endif
++ /*
++ * Tell the VP that we want to resume paused playback by filling
++ * in the command field and then interrupting the audio VP
++ */
++ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++ regs->command = UBI32_AUDIO_CMD_RESUME;
++ snd_ubi32_vp_int_set(substream->pcm);
++ break;
++
++ default:
++ snd_printk(KERN_WARNING "Unhandled trigger\n");
++ ret = -EINVAL;
++ break;
++ }
++
++ return ret;
++}
++
++/*
++ * Prepare to transfer an audio stream to the codec
++ */
++static int snd_ubi32_playback_prepare(struct snd_pcm_substream *substream)
++{
++ /*
++ * Configure registers and setup the runtime instance for DMA transfers
++ */
++ //struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++ struct ubi32_snd_priv *ubi32_priv = substream->pcm->private_data;
++ struct audiotioregs *regs = ubi32_priv->regs;
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "snd_ubi32_playback_prepare: sending STOP command to audio device\n");
++#endif
++
++ /*
++ * Make sure the audio device is stopped
++ */
++
++ /*
++ * Set interrupt flag to indicate that we interrupted audio device
++ * to send a command
++ */
++ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++ regs->command = UBI32_AUDIO_CMD_STOP;
++ snd_ubi32_vp_int_set(substream->pcm);
++
++ return 0;
++}
++
++/*
++ * Allocate DMA buffers from preallocated memory.
++ * Preallocation was done in snd_ubi32_pcm_new()
++ */
++static int snd_ubi32_playback_hw_params(struct snd_pcm_substream *substream,
++ struct snd_pcm_hw_params *hw_params)
++{
++ struct snd_pcm_runtime *runtime = substream->runtime;
++ struct ubi32_snd_priv *ubi32_priv = substream->pcm->private_data;
++ struct audiotioregs *regs = ubi32_priv->regs;
++ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++
++ /*
++ * Use pre-allocated memory from ubi32_snd_pcm_new() to satisfy
++ * this memory request.
++ */
++ int ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "snd_ubi32_playback_hw_params\n");
++#endif
++
++ if (!(regs->channel_mask & (1 << params_channels(hw_params)))) {
++ snd_printk(KERN_INFO "snd_ubi32_playback_hw_params unsupported number of channels %d mask %08x\n", params_channels(hw_params), regs->channel_mask);
++ return -EINVAL;
++ }
++
++ if (ubi32_priv->set_channels) {
++ int ret = ubi32_priv->set_channels(ubi32_priv, params_channels(hw_params));
++ if (ret) {
++ snd_printk(KERN_WARNING "Unable to set channels to %d, ret=%d\n", params_channels(hw_params), ret);
++ return ret;
++ }
++ }
++
++ if (ubi32_priv->set_rate) {
++ int ret = ubi32_priv->set_rate(ubi32_priv, params_rate(hw_params));
++ if (ret) {
++ snd_printk(KERN_WARNING "Unable to set rate to %d, ret=%d\n", params_rate(hw_params), ret);
++ return ret;
++ }
++ }
++
++ if (ubi32_priv->pdata->set_rate) {
++ int ret = ubi32_priv->pdata->set_rate(ubi32_priv->pdata->appdata, params_rate(hw_params));
++ if (ret) {
++ snd_printk(KERN_WARNING "Unable to set rate to %d, ret=%d\n", params_rate(hw_params), ret);
++ return ret;
++ }
++ }
++
++ if (regs->command != UBI32_AUDIO_CMD_NONE) {
++ snd_printk(KERN_WARNING "snd_ubi32_playback_hw_params: tio busy\n");
++ return -EAGAIN;
++ }
++
++ if (params_format(hw_params) == SNDRV_PCM_FORMAT_S16_LE) {
++ regs->flags |= UBI32_CMD_SETUP_FLAG_LE;
++ } else {
++ regs->flags &= ~UBI32_CMD_SETUP_FLAG_LE;
++ }
++ regs->channels = params_channels(hw_params);
++ regs->sample_rate = params_rate(hw_params);
++ regs->command = UBI32_AUDIO_CMD_SETUP;
++ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++ snd_ubi32_vp_int_set(substream->pcm);
++
++ /*
++ * Wait for the command to complete
++ */
++ while (regs->command != UBI32_AUDIO_CMD_NONE) {
++ udelay(1);
++ }
++
++ //snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
++ //runtime->dma_bytes = params_buffer_bytes(hw_params);
++
++ /*
++ * Put the DMA info into the DMA descriptor that we will
++ * use to do transfers to our audio VP "hardware"
++ */
++
++ /*
++ * Mark both DMA transfers as not ready/inactive
++ */
++ regs->playback_xfer_requests[0].active = 0;
++ regs->playback_xfer_requests[1].active = 0;
++
++ /*
++ * Put the location of the buffer into the runtime data instance
++ */
++ ubi32_rd->dma_buffer = (dma_addr_t)runtime->dma_area;
++ ubi32_rd->dma_buffer_end = (dma_addr_t)(runtime->dma_area + runtime->dma_bytes);
++
++ /*
++ * Get the period size
++ */
++ ubi32_rd->period_size = params_period_bytes(hw_params);
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "DMA for ubi32 audio initialized dma_area=0x%x dma_bytes=%d, period_size=%d\n", (unsigned int)runtime->dma_area, (unsigned int)runtime->dma_bytes, ubi32_rd->period_size);
++ snd_printk(KERN_INFO "Private buffer ubi32_rd: dma_buffer=0x%x dma_buffer_end=0x%x\n", ubi32_rd->dma_buffer, ubi32_rd->dma_buffer_end);
++#endif
++
++ return ret;
++}
++
++/*
++ * This is the reverse of snd_ubi32_playback_hw_params
++ */
++static int snd_ubi32_playback_hw_free(struct snd_pcm_substream *substream)
++{
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "snd_ubi32_playback_hw_free\n");
++#endif
++ return snd_pcm_lib_free_pages(substream);
++}
++
++/*
++ * Audio virtual peripheral capabilities
++ */
++static struct snd_pcm_hardware snd_ubi32_playback_hw =
++{
++ /* FILL IN THIS STRUCT WITH HW PARAMS SPECIFIC TO IPI2SOUT */
++ // This is defined in include/sound/asound.h or
++ // include/sound/pcm.h
++ .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
++ SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME), // NOT SURE ABOUT THIS
++ //.info = (SNDRV_PCM_INFO_INTERLEAVED |
++ // SNDRV_PCM_INFO_BLOCK_TRANSFER |
++ // SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
++ // SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
++ .buffer_bytes_max = (64*1024), // NOT SURE ABOUT THIS
++ .period_bytes_min = 64,
++ .period_bytes_max = 8184,//8184,//8176,
++ .periods_min = 2,
++ .periods_max = 255, // THIS WILL ALMOST CERTAINLY NEED TO BE CHANGED
++ .fifo_size = 0, // THIS IS IGNORED BY ALSA
++};
++
++/*
++ * We fill this in later
++ */
++static struct snd_pcm_hw_constraint_list ubi32_playback_rates;
++
++static int snd_ubi32_playback_close(struct snd_pcm_substream *substream)
++{
++ /* Disable codec, stop DMA, free private data structures */
++ //struct ubi32_snd_priv *ubi32_priv = snd_pcm_substream_chip(substream);
++ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "snd_ubi32_playback_close\n");
++#endif
++
++ substream->runtime->private_data = NULL;
++
++ kfree(ubi32_rd);
++
++ return 0;
++}
++
++static int snd_ubi32_playback_open(struct snd_pcm_substream *substream)
++{
++ //struct ubi32_snd_priv *ubi32_priv = snd_pcm_substream_chip(substream);
++ struct snd_pcm_runtime *runtime = substream->runtime;
++ struct ubi32_snd_runtime_data *ubi32_rd;
++ int ret = 0;
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "ubi32 playback open\n");
++#endif
++
++ /* Associate capabilities with component */
++ runtime->hw = snd_ubi32_playback_hw;
++
++ /*
++ * Inform ALSA about constraints of the audio device
++ */
++ ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &ubi32_playback_rates);
++ if (ret < 0) {
++ snd_printk(KERN_INFO "invalid rate\n");
++ goto out;
++ }
++
++ /* Force the buffer size to be an integer multiple of period size */
++ ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
++ if (ret < 0) {
++ snd_printk(KERN_INFO "invalid period\n");
++ goto out;
++ }
++ /* Initialize structures/registers */
++ ubi32_rd = kzalloc(sizeof(struct ubi32_snd_runtime_data), GFP_KERNEL);
++ if (ubi32_rd == NULL) {
++ ret = -ENOMEM;
++ goto out;
++ }
++
++ runtime->private_data = ubi32_rd;
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "snd_ubi32_playback_open returned 0\n");
++#endif
++
++ return 0;
++out:
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "snd_ubi32_playback_open returned %d\n", ret);
++#endif
++
++ return ret;
++}
++
++static struct snd_pcm_ops snd_ubi32_playback_ops = {
++ .open = snd_ubi32_playback_open, /* Open */
++ .close = snd_ubi32_playback_close, /* Close */
++ .ioctl = snd_pcm_lib_ioctl, /* Generic IOCTL handler */
++ .hw_params = snd_ubi32_playback_hw_params, /* Hardware parameters/capabilities */
++ .hw_free = snd_ubi32_playback_hw_free, /* Free function for hw_params */
++ .prepare = snd_ubi32_playback_prepare,
++ .trigger = snd_ubi32_playback_trigger,
++ .pointer = snd_ubi32_playback_pointer,
++};
++
++/*
++ * Interrupt handler that gets called when the audio device
++ * interrupts Linux
++ */
++static irqreturn_t snd_ubi32_pcm_interrupt(int irq, void *appdata)
++{
++ struct snd_pcm *pcm = (struct snd_pcm *)appdata;
++ struct ubi32_snd_priv *ubi32_priv = pcm->private_data;
++ struct audiotioregs *regs = ubi32_priv->regs;
++
++ // Only one substream exists because our VP does not mix
++ // streams. Therefore we don't have to search through
++ // substreams like the at91 driver does.
++ struct snd_pcm_substream *substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
++ struct ubi32_snd_runtime_data *ubi32_rd = substream->runtime->private_data;
++ int dma_to_fill = 0;
++
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "Ubi32 ALSA interrupt\n");
++#endif
++
++ if (!pcm) {
++ snd_printk(KERN_WARNING "pcm does not exist\n");
++ return IRQ_HANDLED;
++ }
++
++ if (ubi32_rd == NULL) {
++ snd_printk(KERN_WARNING "No runtime data\n");
++ return IRQ_HANDLED;
++ }
++ // Check interrupt cause
++ if (0) {
++ // Handle the underflow case
++ } else if ((regs->status & UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST) ||
++ (regs->status & UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST)) {
++ if (regs->status & UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST) {
++ dma_to_fill = 0;
++ regs->status &= ~UBI32_AUDIO_STATUS_PLAY_DMA0_REQUEST;
++ } else if (regs->status & UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST) {
++ dma_to_fill = 1;
++ regs->status &= ~UBI32_AUDIO_STATUS_PLAY_DMA1_REQUEST;
++ }
++ ubi32_rd->period_ptr += ubi32_rd->period_size;
++ if (ubi32_rd->period_ptr >= ubi32_rd->dma_buffer_end) {
++ ubi32_rd->period_ptr = ubi32_rd->dma_buffer;
++ }
++ regs->playback_xfer_requests[dma_to_fill].ptr = (void *)ubi32_rd->period_ptr;
++ regs->playback_xfer_requests[dma_to_fill].ctr = ubi32_rd->period_size;
++ regs->playback_xfer_requests[dma_to_fill].active = 1;
++#if SND_UBI32_DEBUG
++ snd_printk(KERN_INFO "xfer_request %d ptr=0x%x ctr=%u\n", dma_to_fill, ubi32_rd->period_ptr, ubi32_rd->period_size);
++#endif
++ regs->int_flags |= UBI32_AUDIO_INT_FLAG_MORE_SAMPLES;
++ snd_ubi32_vp_int_set(substream->pcm);
++ }
++ // If we are interrupted by the VP, that means we completed
++ // processing one period of audio. We need to inform the upper
++ // layers of ALSA of this.
++ snd_pcm_period_elapsed(substream);
++
++ return IRQ_HANDLED;
++}
++
++void __devexit snd_ubi32_pcm_remove(struct ubi32_snd_priv *ubi32_priv)
++{
++ struct snd_pcm *pcm = ubi32_priv->pcm;
++ free_irq(ubi32_priv->rx_irq, pcm);
++}
++
++#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12
++#error "Change this table to match pcm.h"
++#endif
++static unsigned int rates[] __initdata = {5512, 8000, 11025, 16000, 22050,
++ 32000, 44100, 48000, 64000, 88200,
++ 96000, 176400, 192000};
++
++/*
++ * snd_ubi32_pcm_probe
++ */
++int __devinit snd_ubi32_pcm_probe(struct ubi32_snd_priv *ubi32_priv, struct platform_device *pdev)
++{
++ struct snd_pcm *pcm;
++ int ret, err;
++ int i;
++ int j;
++ int nrates;
++ unsigned int rate_max = 0;
++ unsigned int rate_min = 0xFFFFFFFF;
++ unsigned int rate_mask = 0;
++ struct audiotioregs *regs;
++ struct resource *res_regs;
++ struct resource *res_irq_tx;
++ struct resource *res_irq_rx;
++ struct ubi32pcm_platform_data *pdata;
++
++ pdata = pdev->dev.platform_data;
++ if (!pdata) {
++ return -ENODEV;
++ }
++
++ /*
++ * Get our resources, regs is the hardware driver base address
++ * and the tx and rx irqs are used to communicate with the
++ * hardware driver.
++ */
++ res_regs = platform_get_resource(pdev, IORESOURCE_MEM, AUDIOTIO_MEM_RESOURCE);
++ res_irq_tx = platform_get_resource(pdev, IORESOURCE_IRQ, AUDIOTIO_TX_IRQ_RESOURCE);
++ res_irq_rx = platform_get_resource(pdev, IORESOURCE_IRQ, AUDIOTIO_RX_IRQ_RESOURCE);
++ if (!res_regs || !res_irq_tx || !res_irq_rx) {
++ snd_printk(KERN_WARNING "Could not get resources");
++ return -ENODEV;
++ }
++
++ ubi32_priv->regs = (struct audiotioregs *)res_regs->start;
++ ubi32_priv->tx_irq = res_irq_tx->start;
++ ubi32_priv->rx_irq = res_irq_rx->start;
++
++ /*
++ * Check the version
++ */
++ regs = ubi32_priv->regs;
++ if (regs->version != AUDIOTIOREGS_VERSION) {
++ snd_printk(KERN_WARNING "This audiotioreg is not compatible with this driver\n");
++ return -ENODEV;
++ }
++
++ /*
++ * Find out the standard rates, also find max and min rates
++ */
++ for (i = 0; i < ARRAY_SIZE(rates); i++) {
++ int found = 0;
++ for (j = 0; j < regs->n_sample_rates; j++) {
++ if (rates[i] == regs->sample_rates[j]) {
++ /*
++ * Check to see if it is supported by the dac
++ */
++ if ((rates[i] >= ubi32_priv->min_sample_rate) &&
++ (!ubi32_priv->max_sample_rate ||
++ (ubi32_priv->max_sample_rate && (rates[i] <= ubi32_priv->max_sample_rate)))) {
++ found = 1;
++ rate_mask |= (1 << i);
++ nrates++;
++ if (rates[i] < rate_min) {
++ rate_min = rates[i];
++ }
++ if (rates[i] > rate_max) {
++ rate_max = rates[i];
++ }
++ break;
++ }
++ }
++ }
++ if (!found) {
++ rate_mask |= SNDRV_PCM_RATE_KNOT;
++ }
++ }
++
++ snd_ubi32_playback_hw.rates = rate_mask;
++ snd_ubi32_playback_hw.rate_min = rate_min;
++ snd_ubi32_playback_hw.rate_max = rate_max;
++ ubi32_playback_rates.count = regs->n_sample_rates;
++ ubi32_playback_rates.list = regs->sample_rates;
++ ubi32_playback_rates.mask = 0;
++
++ for (i = 0; i < 32; i++) {
++ if (regs->channel_mask & (1 << i)) {
++ if (!snd_ubi32_playback_hw.channels_min) {
++ snd_ubi32_playback_hw.channels_min = i;
++ }
++ snd_ubi32_playback_hw.channels_max = i;
++ }
++ }
++ snd_printk(KERN_INFO "Ubi32PCM: channels_min:%u channels_max:%u\n",
++ snd_ubi32_playback_hw.channels_min,
++ snd_ubi32_playback_hw.channels_max);
++
++ if (regs->caps & AUDIOTIONODE_CAP_BE) {
++ snd_ubi32_playback_hw.formats |= SNDRV_PCM_FMTBIT_S16_BE;
++ }
++ if (regs->caps & AUDIOTIONODE_CAP_LE) {
++ snd_ubi32_playback_hw.formats |= SNDRV_PCM_FMTBIT_S16_LE;
++ }
++ snd_printk(KERN_INFO "Ubi32PCM: rates:%08x min:%u max:%u count:%d fmts:%016llx\n",
++ snd_ubi32_playback_hw.rates,
++ snd_ubi32_playback_hw.rate_min,
++ snd_ubi32_playback_hw.rate_max,
++ ubi32_playback_rates.count,
++ snd_ubi32_playback_hw.formats);
++
++ ret = snd_pcm_new(ubi32_priv->card, "Ubi32 PCM", 0, 1, 0, &pcm);
++ if (ret < 0) {
++ return ret;
++ }
++
++ pcm->private_data = ubi32_priv;
++ ubi32_priv->pcm = pcm;
++ ubi32_priv->pdata = pdata;
++
++ pcm->info_flags = 0; // What is this for? Just copied from other drivers
++
++ strcpy(pcm->name, "Ubi32-PCM");
++
++ // How do we allocate the buffer for non PCI devices?
++ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
++ snd_dma_continuous_data(GFP_KERNEL),
++ 45*1024, 64*1024); //NOT SURE ABOUT SIZE, CHECK LATER
++
++ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ubi32_playback_ops);
++
++ /*
++ * Start up the TIO
++ */
++ regs->int_flags |= UBI32_AUDIO_INT_FLAG_COMMAND;
++ regs->command = UBI32_AUDIO_CMD_ENABLE;
++ snd_ubi32_vp_int_set(pcm);
++
++ /*
++ * Request IRQ
++ */
++ err = request_irq(ubi32_priv->rx_irq, snd_ubi32_pcm_interrupt, IRQF_DISABLED, pcm->name, pcm);
++ if (err) {
++ snd_printk(KERN_WARNING "request_irq failed: irq=%d err=%d\n", ubi32_priv->rx_irq, err);
++ return -ENODEV;
++ }
++
++ return ret;
++
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/ashldi3.c
+@@ -0,0 +1,62 @@
++/* ashrdi3.c extracted from gcc-2.95.2/libgcc2.c which is: */
++/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
++
++This file is part of GNU CC.
++
++GNU CC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2, or (at your option)
++any later version.
++
++GNU CC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GNU CC; see the file COPYING. If not, write to
++the Free Software Foundation, 59 Temple Place - Suite 330,
++Boston, MA 02111-1307, USA. */
++
++#define BITS_PER_UNIT 8
++
++typedef int SItype __attribute__ ((mode (SI)));
++typedef unsigned int USItype __attribute__ ((mode (SI)));
++typedef int DItype __attribute__ ((mode (DI)));
++typedef int word_type __attribute__ ((mode (__word__)));
++
++struct DIstruct {SItype high, low;};
++
++typedef union
++{
++ struct DIstruct s;
++ DItype ll;
++} DIunion;
++
++DItype
++__ashldi3 (DItype u, word_type b)
++{
++ DIunion w;
++ word_type bm;
++ DIunion uu;
++
++ if (b == 0)
++ return u;
++
++ uu.ll = u;
++
++ bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
++ if (bm <= 0)
++ {
++ w.s.low = 0;
++ w.s.high = (USItype)uu.s.low << -bm;
++ }
++ else
++ {
++ USItype carries = (USItype)uu.s.low >> bm;
++ w.s.low = (USItype)uu.s.low << b;
++ w.s.high = ((USItype)uu.s.high << b) | carries;
++ }
++
++ return w.ll;
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/ashrdi3.c
+@@ -0,0 +1,63 @@
++/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
++/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
++
++This file is part of GNU CC.
++
++GNU CC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2, or (at your option)
++any later version.
++
++GNU CC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GNU CC; see the file COPYING. If not, write to
++the Free Software Foundation, 59 Temple Place - Suite 330,
++Boston, MA 02111-1307, USA. */
++
++#define BITS_PER_UNIT 8
++
++typedef int SItype __attribute__ ((mode (SI)));
++typedef unsigned int USItype __attribute__ ((mode (SI)));
++typedef int DItype __attribute__ ((mode (DI)));
++typedef int word_type __attribute__ ((mode (__word__)));
++
++struct DIstruct {SItype high, low;};
++
++typedef union
++{
++ struct DIstruct s;
++ DItype ll;
++} DIunion;
++
++DItype
++__ashrdi3 (DItype u, word_type b)
++{
++ DIunion w;
++ word_type bm;
++ DIunion uu;
++
++ if (b == 0)
++ return u;
++
++ uu.ll = u;
++
++ bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
++ if (bm <= 0)
++ {
++ /* w.s.high = 1..1 or 0..0 */
++ w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
++ w.s.low = uu.s.high >> -bm;
++ }
++ else
++ {
++ USItype carries = (USItype)uu.s.high << bm;
++ w.s.high = uu.s.high >> b;
++ w.s.low = ((USItype)uu.s.low >> b) | carries;
++ }
++
++ return w.ll;
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/divmod.c
+@@ -0,0 +1,85 @@
++unsigned long
++udivmodsi4(unsigned long num, unsigned long den, int modwanted)
++{
++ unsigned long bit = 1;
++ unsigned long res = 0;
++
++ while (den < num && bit && !(den & (1L<<31)))
++ {
++ den <<=1;
++ bit <<=1;
++ }
++ while (bit)
++ {
++ if (num >= den)
++ {
++ num -= den;
++ res |= bit;
++ }
++ bit >>=1;
++ den >>=1;
++ }
++ if (modwanted) return num;
++ return res;
++}
++
++long
++__udivsi3 (long a, long b)
++{
++ return udivmodsi4 (a, b, 0);
++}
++
++long
++__umodsi3 (long a, long b)
++{
++ return udivmodsi4 (a, b, 1);
++}
++
++long
++__divsi3 (long a, long b)
++{
++ int neg = 0;
++ long res;
++
++ if (a < 0)
++ {
++ a = -a;
++ neg = !neg;
++ }
++
++ if (b < 0)
++ {
++ b = -b;
++ neg = !neg;
++ }
++
++ res = udivmodsi4 (a, b, 0);
++
++ if (neg)
++ res = -res;
++
++ return res;
++}
++
++long
++__modsi3 (long a, long b)
++{
++ int neg = 0;
++ long res;
++
++ if (a < 0)
++ {
++ a = -a;
++ neg = 1;
++ }
++
++ if (b < 0)
++ b = -b;
++
++ res = udivmodsi4 (a, b, 1);
++
++ if (neg)
++ res = -res;
++
++ return res;
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/lshrdi3.c
+@@ -0,0 +1,62 @@
++/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
++/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
++
++This file is part of GNU CC.
++
++GNU CC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2, or (at your option)
++any later version.
++
++GNU CC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GNU CC; see the file COPYING. If not, write to
++the Free Software Foundation, 59 Temple Place - Suite 330,
++Boston, MA 02111-1307, USA. */
++
++#define BITS_PER_UNIT 8
++
++typedef int SItype __attribute__ ((mode (SI)));
++typedef unsigned int USItype __attribute__ ((mode (SI)));
++typedef int DItype __attribute__ ((mode (DI)));
++typedef int word_type __attribute__ ((mode (__word__)));
++
++struct DIstruct {SItype high, low;};
++
++typedef union
++{
++ struct DIstruct s;
++ DItype ll;
++} DIunion;
++
++DItype
++__lshrdi3 (DItype u, word_type b)
++{
++ DIunion w;
++ word_type bm;
++ DIunion uu;
++
++ if (b == 0)
++ return u;
++
++ uu.ll = u;
++
++ bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
++ if (bm <= 0)
++ {
++ w.s.high = 0;
++ w.s.low = (USItype)uu.s.high >> -bm;
++ }
++ else
++ {
++ USItype carries = (USItype)uu.s.high << bm;
++ w.s.high = (USItype)uu.s.high >> b;
++ w.s.low = ((USItype)uu.s.low >> b) | carries;
++ }
++
++ return w.ll;
++}
+--- /dev/null
++++ b/arch/ubicom32/lib/muldi3.c
+@@ -0,0 +1,87 @@
++/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
++ gcc-2.7.2.3/longlong.h which is: */
++/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
++
++This file is part of GNU CC.
++
++GNU CC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2, or (at your option)
++any later version.
++
++GNU CC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GNU CC; see the file COPYING. If not, write to
++the Free Software Foundation, 59 Temple Place - Suite 330,
++Boston, MA 02111-1307, USA. */
++
++#define UWtype USItype
++#define UHWtype USItype
++#define W_TYPE_SIZE 32
++#define __BITS4 (W_TYPE_SIZE / 4)
++#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
++#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
++#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
++
++#define umul_ppmm(w1, w0, u, v) \
++ do { \
++ UWtype __x0, __x1, __x2, __x3; \
++ UHWtype __ul, __vl, __uh, __vh; \
++ \
++ __ul = __ll_lowpart (u); \
++ __uh = __ll_highpart (u); \
++ __vl = __ll_lowpart (v); \
++ __vh = __ll_highpart (v); \
++ \
++ __x0 = (UWtype) __ul * __vl; \
++ __x1 = (UWtype) __ul * __vh; \
++ __x2 = (UWtype) __uh * __vl; \
++ __x3 = (UWtype) __uh * __vh; \
++ \
++ __x1 += __ll_highpart (__x0);/* this can't give carry */ \
++ __x1 += __x2; /* but this indeed can */ \
++ if (__x1 < __x2) /* did we get it? */ \
++ __x3 += __ll_B; /* yes, add it in the proper pos. */ \
++ \
++ (w1) = __x3 + __ll_highpart (__x1); \
++ (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
++ } while (0)
++
++
++#define __umulsidi3(u, v) \
++ ({DIunion __w; \
++ umul_ppmm (__w.s.high, __w.s.low, u, v); \
++ __w.ll; })
++
++typedef int SItype __attribute__ ((mode (SI)));
++typedef unsigned int USItype __attribute__ ((mode (SI)));
++typedef int DItype __attribute__ ((mode (DI)));
++typedef int word_type __attribute__ ((mode (__word__)));
++
++struct DIstruct {SItype high, low;};
++
++typedef union
++{
++ struct DIstruct s;
++ DItype ll;
++} DIunion;
++
++DItype
++__muldi3 (DItype u, DItype v)
++{
++ DIunion w;
++ DIunion uu, vv;
++
++ uu.ll = u,
++ vv.ll = v;
++
++ w.ll = __umulsidi3 (uu.s.low, vv.s.low);
++ w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
++ + (USItype) uu.s.high * (USItype) vv.s.low);
++
++ return w.ll;
++}
projects / openwrt / svn-archive / archive.git / commitdiff