+++ /dev/null
-From 8c2a00c0129d6f718245f7a613c2bb28976b7973 Mon Sep 17 00:00:00 2001
-From: Kumar Gala <galak@codeaurora.org>
-Date: Tue, 21 Jan 2014 17:14:10 -0600
-Subject: [PATCH 005/182] ARM: qcom: Split Qualcomm support into legacy and
- multiplatform
-
-Introduce a new mach-qcom that will support SoCs that intend to be
-multiplatform compatible while keeping mach-msm to legacy SoC/board
-support that will not transition over to multiplatform.
-
-As part of this, we move support for MSM8X60, MSM8960 and MSM8974 over
-to mach-qcom.
-
-Signed-off-by: Kumar Gala <galak@codeaurora.org>
----
- MAINTAINERS | 8 ++
- arch/arm/Kconfig | 7 +-
- arch/arm/Kconfig.debug | 2 +-
- arch/arm/Makefile | 1 +
- arch/arm/boot/dts/Makefile | 6 +-
- arch/arm/mach-msm/Kconfig | 45 +------
- arch/arm/mach-msm/Makefile | 6 -
- arch/arm/mach-msm/board-dt.c | 41 ------
- arch/arm/mach-msm/platsmp.c | 137 -------------------
- arch/arm/mach-msm/scm-boot.c | 39 ------
- arch/arm/mach-msm/scm-boot.h | 22 ---
- arch/arm/mach-msm/scm.c | 299 -----------------------------------------
- arch/arm/mach-msm/scm.h | 25 ----
- arch/arm/mach-qcom/Kconfig | 33 +++++
- arch/arm/mach-qcom/Makefile | 5 +
- arch/arm/mach-qcom/board.c | 40 ++++++
- arch/arm/mach-qcom/platsmp.c | 137 +++++++++++++++++++
- arch/arm/mach-qcom/scm-boot.c | 39 ++++++
- arch/arm/mach-qcom/scm-boot.h | 22 +++
- arch/arm/mach-qcom/scm.c | 299 +++++++++++++++++++++++++++++++++++++++++
- arch/arm/mach-qcom/scm.h | 25 ++++
- 21 files changed, 619 insertions(+), 619 deletions(-)
- delete mode 100644 arch/arm/mach-msm/board-dt.c
- delete mode 100644 arch/arm/mach-msm/platsmp.c
- delete mode 100644 arch/arm/mach-msm/scm-boot.c
- delete mode 100644 arch/arm/mach-msm/scm-boot.h
- delete mode 100644 arch/arm/mach-msm/scm.c
- delete mode 100644 arch/arm/mach-msm/scm.h
- create mode 100644 arch/arm/mach-qcom/Kconfig
- create mode 100644 arch/arm/mach-qcom/Makefile
- create mode 100644 arch/arm/mach-qcom/board.c
- create mode 100644 arch/arm/mach-qcom/platsmp.c
- create mode 100644 arch/arm/mach-qcom/scm-boot.c
- create mode 100644 arch/arm/mach-qcom/scm-boot.h
- create mode 100644 arch/arm/mach-qcom/scm.c
- create mode 100644 arch/arm/mach-qcom/scm.h
-
---- a/MAINTAINERS
-+++ b/MAINTAINERS
-@@ -1168,6 +1168,14 @@ L: linux-arm-kernel@lists.infradead.org
- W: http://www.arm.linux.org.uk/
- S: Maintained
-
-+ARM/QUALCOMM SUPPORT
-+M: Kumar Gala <galak@codeaurora.org>
-+M: David Brown <davidb@codeaurora.org>
-+L: linux-arm-msm@vger.kernel.org
-+S: Maintained
-+F: arch/arm/mach-qcom/
-+T: git git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom.git
-+
- ARM/RADISYS ENP2611 MACHINE SUPPORT
- M: Lennert Buytenhek <kernel@wantstofly.org>
- L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
---- a/arch/arm/Kconfig
-+++ b/arch/arm/Kconfig
-@@ -658,9 +658,8 @@ config ARCH_PXA
- help
- Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
-
--config ARCH_MSM_NODT
-- bool "Qualcomm MSM"
-- select ARCH_MSM
-+config ARCH_MSM
-+ bool "Qualcomm MSM (non-multiplatform)"
- select ARCH_REQUIRE_GPIOLIB
- select COMMON_CLK
- select GENERIC_CLOCKEVENTS
-@@ -1006,6 +1005,8 @@ source "arch/arm/plat-pxa/Kconfig"
-
- source "arch/arm/mach-mmp/Kconfig"
-
-+source "arch/arm/mach-qcom/Kconfig"
-+
- source "arch/arm/mach-realview/Kconfig"
-
- source "arch/arm/mach-rockchip/Kconfig"
---- a/arch/arm/Kconfig.debug
-+++ b/arch/arm/Kconfig.debug
-@@ -956,7 +956,7 @@ config DEBUG_STI_UART
-
- config DEBUG_MSM_UART
- bool
-- depends on ARCH_MSM
-+ depends on ARCH_MSM || ARCH_QCOM
-
- config DEBUG_LL_INCLUDE
- string
---- a/arch/arm/Makefile
-+++ b/arch/arm/Makefile
-@@ -185,6 +185,7 @@ machine-$(CONFIG_ARCH_OMAP2PLUS) += omap
- machine-$(CONFIG_ARCH_ORION5X) += orion5x
- machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell
- machine-$(CONFIG_ARCH_PXA) += pxa
-+machine-$(CONFIG_ARCH_QCOM) += qcom
- machine-$(CONFIG_ARCH_REALVIEW) += realview
- machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip
- machine-$(CONFIG_ARCH_RPC) += rpc
---- a/arch/arm/boot/dts/Makefile
-+++ b/arch/arm/boot/dts/Makefile
-@@ -119,9 +119,6 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-
- kirkwood-ts219-6282.dtb
- dtb-$(CONFIG_ARCH_MARCO) += marco-evb.dtb
- dtb-$(CONFIG_ARCH_MOXART) += moxart-uc7112lx.dtb
--dtb-$(CONFIG_ARCH_MSM) += qcom-msm8660-surf.dtb \
-- qcom-msm8960-cdp.dtb \
-- qcom-apq8074-dragonboard.dtb
- dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
- armada-370-mirabox.dtb \
- armada-370-netgear-rn102.dtb \
-@@ -234,6 +231,9 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420
- dra7-evm.dtb
- dtb-$(CONFIG_ARCH_ORION5X) += orion5x-lacie-ethernet-disk-mini-v2.dtb
- dtb-$(CONFIG_ARCH_PRIMA2) += prima2-evb.dtb
-+dtb-$(CONFIG_ARCH_QCOM) += qcom-msm8660-surf.dtb \
-+ qcom-msm8960-cdp.dtb \
-+ qcom-apq8074-dragonboard.dtb
- dtb-$(CONFIG_ARCH_U8500) += ste-snowball.dtb \
- ste-hrefprev60-stuib.dtb \
- ste-hrefprev60-tvk.dtb \
---- a/arch/arm/mach-msm/Kconfig
-+++ b/arch/arm/mach-msm/Kconfig
-@@ -1,50 +1,9 @@
--config ARCH_MSM
-- bool
--
--config ARCH_MSM_DT
-- bool "Qualcomm MSM DT Support" if ARCH_MULTI_V7
-- select ARCH_MSM
-- select ARCH_REQUIRE_GPIOLIB
-- select CLKSRC_OF
-- select GENERIC_CLOCKEVENTS
-- help
-- Support for Qualcomm's devicetree based MSM systems.
--
- if ARCH_MSM
-
--menu "Qualcomm MSM SoC Selection"
-- depends on ARCH_MSM_DT
--
--config ARCH_MSM8X60
-- bool "Enable support for MSM8X60"
-- select ARM_GIC
-- select CPU_V7
-- select HAVE_SMP
-- select MSM_SCM if SMP
-- select CLKSRC_QCOM
--
--config ARCH_MSM8960
-- bool "Enable support for MSM8960"
-- select ARM_GIC
-- select CPU_V7
-- select HAVE_SMP
-- select MSM_SCM if SMP
-- select CLKSRC_QCOM
--
--config ARCH_MSM8974
-- bool "Enable support for MSM8974"
-- select ARM_GIC
-- select CPU_V7
-- select HAVE_ARM_ARCH_TIMER
-- select HAVE_SMP
-- select MSM_SCM if SMP
--
--endmenu
--
- choice
- prompt "Qualcomm MSM SoC Type"
- default ARCH_MSM7X00A
-- depends on ARCH_MSM_NODT
-+ depends on ARCH_MSM
-
- config ARCH_MSM7X00A
- bool "MSM7x00A / MSM7x01A"
-@@ -99,7 +58,7 @@ config MSM_VIC
- bool
-
- menu "Qualcomm MSM Board Type"
-- depends on ARCH_MSM_NODT
-+ depends on ARCH_MSM
-
- config MACH_HALIBUT
- depends on ARCH_MSM
---- a/arch/arm/mach-msm/Makefile
-+++ b/arch/arm/mach-msm/Makefile
-@@ -13,17 +13,11 @@ obj-$(CONFIG_ARCH_QSD8X50) += dma.o io.o
-
- obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o
- obj-$(CONFIG_MSM_SMD) += last_radio_log.o
--obj-$(CONFIG_MSM_SCM) += scm.o scm-boot.o
--
--CFLAGS_scm.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1)
--
--obj-$(CONFIG_SMP) += platsmp.o
-
- obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o devices-msm7x00.o
- obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o board-trout-panel.o devices-msm7x00.o
- obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o devices-msm7x00.o
- obj-$(CONFIG_ARCH_MSM7X30) += board-msm7x30.o devices-msm7x30.o
- obj-$(CONFIG_ARCH_QSD8X50) += board-qsd8x50.o devices-qsd8x50.o
--obj-$(CONFIG_ARCH_MSM_DT) += board-dt.o
- obj-$(CONFIG_MSM_GPIOMUX) += gpiomux.o
- obj-$(CONFIG_ARCH_QSD8X50) += gpiomux-8x50.o
---- a/arch/arm/mach-msm/board-dt.c
-+++ /dev/null
-@@ -1,41 +0,0 @@
--/* Copyright (c) 2010-2012,2013 The Linux Foundation. All rights reserved.
-- *
-- * This program is free software; you can redistribute it and/or modify
-- * it under the terms of the GNU General Public License version 2 and
-- * only version 2 as published by the Free Software Foundation.
-- *
-- * This program 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.
-- */
--
--#include <linux/init.h>
--#include <linux/of.h>
--#include <linux/of_platform.h>
--
--#include <asm/mach/arch.h>
--#include <asm/mach/map.h>
--
--#include "common.h"
--
--static const char * const msm_dt_match[] __initconst = {
-- "qcom,msm8660-fluid",
-- "qcom,msm8660-surf",
-- "qcom,msm8960-cdp",
-- NULL
--};
--
--static const char * const apq8074_dt_match[] __initconst = {
-- "qcom,apq8074-dragonboard",
-- NULL
--};
--
--DT_MACHINE_START(MSM_DT, "Qualcomm MSM (Flattened Device Tree)")
-- .smp = smp_ops(msm_smp_ops),
-- .dt_compat = msm_dt_match,
--MACHINE_END
--
--DT_MACHINE_START(APQ_DT, "Qualcomm MSM (Flattened Device Tree)")
-- .dt_compat = apq8074_dt_match,
--MACHINE_END
---- a/arch/arm/mach-msm/platsmp.c
-+++ /dev/null
-@@ -1,137 +0,0 @@
--/*
-- * Copyright (C) 2002 ARM Ltd.
-- * All Rights Reserved
-- * Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-- *
-- * This program 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.
-- */
--
--#include <linux/init.h>
--#include <linux/errno.h>
--#include <linux/delay.h>
--#include <linux/device.h>
--#include <linux/smp.h>
--#include <linux/io.h>
--
--#include <asm/cputype.h>
--#include <asm/smp_plat.h>
--
--#include "scm-boot.h"
--#include "common.h"
--
--#define VDD_SC1_ARRAY_CLAMP_GFS_CTL 0x15A0
--#define SCSS_CPU1CORE_RESET 0xD80
--#define SCSS_DBG_STATUS_CORE_PWRDUP 0xE64
--
--extern void secondary_startup(void);
--
--static DEFINE_SPINLOCK(boot_lock);
--
--#ifdef CONFIG_HOTPLUG_CPU
--static void __ref msm_cpu_die(unsigned int cpu)
--{
-- wfi();
--}
--#endif
--
--static inline int get_core_count(void)
--{
-- /* 1 + the PART[1:0] field of MIDR */
-- return ((read_cpuid_id() >> 4) & 3) + 1;
--}
--
--static void msm_secondary_init(unsigned int cpu)
--{
-- /*
-- * Synchronise with the boot thread.
-- */
-- spin_lock(&boot_lock);
-- spin_unlock(&boot_lock);
--}
--
--static void prepare_cold_cpu(unsigned int cpu)
--{
-- int ret;
-- ret = scm_set_boot_addr(virt_to_phys(secondary_startup),
-- SCM_FLAG_COLDBOOT_CPU1);
-- if (ret == 0) {
-- void __iomem *sc1_base_ptr;
-- sc1_base_ptr = ioremap_nocache(0x00902000, SZ_4K*2);
-- if (sc1_base_ptr) {
-- writel(0, sc1_base_ptr + VDD_SC1_ARRAY_CLAMP_GFS_CTL);
-- writel(0, sc1_base_ptr + SCSS_CPU1CORE_RESET);
-- writel(3, sc1_base_ptr + SCSS_DBG_STATUS_CORE_PWRDUP);
-- iounmap(sc1_base_ptr);
-- }
-- } else
-- printk(KERN_DEBUG "Failed to set secondary core boot "
-- "address\n");
--}
--
--static int msm_boot_secondary(unsigned int cpu, struct task_struct *idle)
--{
-- static int cold_boot_done;
--
-- /* Only need to bring cpu out of reset this way once */
-- if (cold_boot_done == false) {
-- prepare_cold_cpu(cpu);
-- cold_boot_done = true;
-- }
--
-- /*
-- * set synchronisation state between this boot processor
-- * and the secondary one
-- */
-- spin_lock(&boot_lock);
--
-- /*
-- * Send the secondary CPU a soft interrupt, thereby causing
-- * the boot monitor to read the system wide flags register,
-- * and branch to the address found there.
-- */
-- arch_send_wakeup_ipi_mask(cpumask_of(cpu));
--
-- /*
-- * now the secondary core is starting up let it run its
-- * calibrations, then wait for it to finish
-- */
-- spin_unlock(&boot_lock);
--
-- return 0;
--}
--
--/*
-- * Initialise the CPU possible map early - this describes the CPUs
-- * which may be present or become present in the system. The msm8x60
-- * does not support the ARM SCU, so just set the possible cpu mask to
-- * NR_CPUS.
-- */
--static void __init msm_smp_init_cpus(void)
--{
-- unsigned int i, ncores = get_core_count();
--
-- if (ncores > nr_cpu_ids) {
-- pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
-- ncores, nr_cpu_ids);
-- ncores = nr_cpu_ids;
-- }
--
-- for (i = 0; i < ncores; i++)
-- set_cpu_possible(i, true);
--}
--
--static void __init msm_smp_prepare_cpus(unsigned int max_cpus)
--{
--}
--
--struct smp_operations msm_smp_ops __initdata = {
-- .smp_init_cpus = msm_smp_init_cpus,
-- .smp_prepare_cpus = msm_smp_prepare_cpus,
-- .smp_secondary_init = msm_secondary_init,
-- .smp_boot_secondary = msm_boot_secondary,
--#ifdef CONFIG_HOTPLUG_CPU
-- .cpu_die = msm_cpu_die,
--#endif
--};
---- a/arch/arm/mach-msm/scm-boot.c
-+++ /dev/null
-@@ -1,39 +0,0 @@
--/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-- *
-- * This program is free software; you can redistribute it and/or modify
-- * it under the terms of the GNU General Public License version 2 and
-- * only version 2 as published by the Free Software Foundation.
-- *
-- * This program 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 this program; if not, write to the Free Software
-- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-- * 02110-1301, USA.
-- */
--
--#include <linux/module.h>
--#include <linux/slab.h>
--
--#include "scm.h"
--#include "scm-boot.h"
--
--/*
-- * Set the cold/warm boot address for one of the CPU cores.
-- */
--int scm_set_boot_addr(phys_addr_t addr, int flags)
--{
-- struct {
-- unsigned int flags;
-- phys_addr_t addr;
-- } cmd;
--
-- cmd.addr = addr;
-- cmd.flags = flags;
-- return scm_call(SCM_SVC_BOOT, SCM_BOOT_ADDR,
-- &cmd, sizeof(cmd), NULL, 0);
--}
--EXPORT_SYMBOL(scm_set_boot_addr);
---- a/arch/arm/mach-msm/scm-boot.h
-+++ /dev/null
-@@ -1,22 +0,0 @@
--/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-- *
-- * This program is free software; you can redistribute it and/or modify
-- * it under the terms of the GNU General Public License version 2 and
-- * only version 2 as published by the Free Software Foundation.
-- *
-- * This program 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.
-- */
--#ifndef __MACH_SCM_BOOT_H
--#define __MACH_SCM_BOOT_H
--
--#define SCM_BOOT_ADDR 0x1
--#define SCM_FLAG_COLDBOOT_CPU1 0x1
--#define SCM_FLAG_WARMBOOT_CPU1 0x2
--#define SCM_FLAG_WARMBOOT_CPU0 0x4
--
--int scm_set_boot_addr(phys_addr_t addr, int flags);
--
--#endif
---- a/arch/arm/mach-msm/scm.c
-+++ /dev/null
-@@ -1,299 +0,0 @@
--/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-- *
-- * This program is free software; you can redistribute it and/or modify
-- * it under the terms of the GNU General Public License version 2 and
-- * only version 2 as published by the Free Software Foundation.
-- *
-- * This program 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 this program; if not, write to the Free Software
-- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-- * 02110-1301, USA.
-- */
--
--#include <linux/slab.h>
--#include <linux/io.h>
--#include <linux/module.h>
--#include <linux/mutex.h>
--#include <linux/errno.h>
--#include <linux/err.h>
--
--#include <asm/cacheflush.h>
--
--#include "scm.h"
--
--/* Cache line size for msm8x60 */
--#define CACHELINESIZE 32
--
--#define SCM_ENOMEM -5
--#define SCM_EOPNOTSUPP -4
--#define SCM_EINVAL_ADDR -3
--#define SCM_EINVAL_ARG -2
--#define SCM_ERROR -1
--#define SCM_INTERRUPTED 1
--
--static DEFINE_MUTEX(scm_lock);
--
--/**
-- * struct scm_command - one SCM command buffer
-- * @len: total available memory for command and response
-- * @buf_offset: start of command buffer
-- * @resp_hdr_offset: start of response buffer
-- * @id: command to be executed
-- * @buf: buffer returned from scm_get_command_buffer()
-- *
-- * An SCM command is laid out in memory as follows:
-- *
-- * ------------------- <--- struct scm_command
-- * | command header |
-- * ------------------- <--- scm_get_command_buffer()
-- * | command buffer |
-- * ------------------- <--- struct scm_response and
-- * | response header | scm_command_to_response()
-- * ------------------- <--- scm_get_response_buffer()
-- * | response buffer |
-- * -------------------
-- *
-- * There can be arbitrary padding between the headers and buffers so
-- * you should always use the appropriate scm_get_*_buffer() routines
-- * to access the buffers in a safe manner.
-- */
--struct scm_command {
-- u32 len;
-- u32 buf_offset;
-- u32 resp_hdr_offset;
-- u32 id;
-- u32 buf[0];
--};
--
--/**
-- * struct scm_response - one SCM response buffer
-- * @len: total available memory for response
-- * @buf_offset: start of response data relative to start of scm_response
-- * @is_complete: indicates if the command has finished processing
-- */
--struct scm_response {
-- u32 len;
-- u32 buf_offset;
-- u32 is_complete;
--};
--
--/**
-- * alloc_scm_command() - Allocate an SCM command
-- * @cmd_size: size of the command buffer
-- * @resp_size: size of the response buffer
-- *
-- * Allocate an SCM command, including enough room for the command
-- * and response headers as well as the command and response buffers.
-- *
-- * Returns a valid &scm_command on success or %NULL if the allocation fails.
-- */
--static struct scm_command *alloc_scm_command(size_t cmd_size, size_t resp_size)
--{
-- struct scm_command *cmd;
-- size_t len = sizeof(*cmd) + sizeof(struct scm_response) + cmd_size +
-- resp_size;
--
-- cmd = kzalloc(PAGE_ALIGN(len), GFP_KERNEL);
-- if (cmd) {
-- cmd->len = len;
-- cmd->buf_offset = offsetof(struct scm_command, buf);
-- cmd->resp_hdr_offset = cmd->buf_offset + cmd_size;
-- }
-- return cmd;
--}
--
--/**
-- * free_scm_command() - Free an SCM command
-- * @cmd: command to free
-- *
-- * Free an SCM command.
-- */
--static inline void free_scm_command(struct scm_command *cmd)
--{
-- kfree(cmd);
--}
--
--/**
-- * scm_command_to_response() - Get a pointer to a scm_response
-- * @cmd: command
-- *
-- * Returns a pointer to a response for a command.
-- */
--static inline struct scm_response *scm_command_to_response(
-- const struct scm_command *cmd)
--{
-- return (void *)cmd + cmd->resp_hdr_offset;
--}
--
--/**
-- * scm_get_command_buffer() - Get a pointer to a command buffer
-- * @cmd: command
-- *
-- * Returns a pointer to the command buffer of a command.
-- */
--static inline void *scm_get_command_buffer(const struct scm_command *cmd)
--{
-- return (void *)cmd->buf;
--}
--
--/**
-- * scm_get_response_buffer() - Get a pointer to a response buffer
-- * @rsp: response
-- *
-- * Returns a pointer to a response buffer of a response.
-- */
--static inline void *scm_get_response_buffer(const struct scm_response *rsp)
--{
-- return (void *)rsp + rsp->buf_offset;
--}
--
--static int scm_remap_error(int err)
--{
-- switch (err) {
-- case SCM_ERROR:
-- return -EIO;
-- case SCM_EINVAL_ADDR:
-- case SCM_EINVAL_ARG:
-- return -EINVAL;
-- case SCM_EOPNOTSUPP:
-- return -EOPNOTSUPP;
-- case SCM_ENOMEM:
-- return -ENOMEM;
-- }
-- return -EINVAL;
--}
--
--static u32 smc(u32 cmd_addr)
--{
-- int context_id;
-- register u32 r0 asm("r0") = 1;
-- register u32 r1 asm("r1") = (u32)&context_id;
-- register u32 r2 asm("r2") = cmd_addr;
-- do {
-- asm volatile(
-- __asmeq("%0", "r0")
-- __asmeq("%1", "r0")
-- __asmeq("%2", "r1")
-- __asmeq("%3", "r2")
--#ifdef REQUIRES_SEC
-- ".arch_extension sec\n"
--#endif
-- "smc #0 @ switch to secure world\n"
-- : "=r" (r0)
-- : "r" (r0), "r" (r1), "r" (r2)
-- : "r3");
-- } while (r0 == SCM_INTERRUPTED);
--
-- return r0;
--}
--
--static int __scm_call(const struct scm_command *cmd)
--{
-- int ret;
-- u32 cmd_addr = virt_to_phys(cmd);
--
-- /*
-- * Flush the entire cache here so callers don't have to remember
-- * to flush the cache when passing physical addresses to the secure
-- * side in the buffer.
-- */
-- flush_cache_all();
-- ret = smc(cmd_addr);
-- if (ret < 0)
-- ret = scm_remap_error(ret);
--
-- return ret;
--}
--
--/**
-- * scm_call() - Send an SCM command
-- * @svc_id: service identifier
-- * @cmd_id: command identifier
-- * @cmd_buf: command buffer
-- * @cmd_len: length of the command buffer
-- * @resp_buf: response buffer
-- * @resp_len: length of the response buffer
-- *
-- * Sends a command to the SCM and waits for the command to finish processing.
-- */
--int scm_call(u32 svc_id, u32 cmd_id, const void *cmd_buf, size_t cmd_len,
-- void *resp_buf, size_t resp_len)
--{
-- int ret;
-- struct scm_command *cmd;
-- struct scm_response *rsp;
--
-- cmd = alloc_scm_command(cmd_len, resp_len);
-- if (!cmd)
-- return -ENOMEM;
--
-- cmd->id = (svc_id << 10) | cmd_id;
-- if (cmd_buf)
-- memcpy(scm_get_command_buffer(cmd), cmd_buf, cmd_len);
--
-- mutex_lock(&scm_lock);
-- ret = __scm_call(cmd);
-- mutex_unlock(&scm_lock);
-- if (ret)
-- goto out;
--
-- rsp = scm_command_to_response(cmd);
-- do {
-- u32 start = (u32)rsp;
-- u32 end = (u32)scm_get_response_buffer(rsp) + resp_len;
-- start &= ~(CACHELINESIZE - 1);
-- while (start < end) {
-- asm ("mcr p15, 0, %0, c7, c6, 1" : : "r" (start)
-- : "memory");
-- start += CACHELINESIZE;
-- }
-- } while (!rsp->is_complete);
--
-- if (resp_buf)
-- memcpy(resp_buf, scm_get_response_buffer(rsp), resp_len);
--out:
-- free_scm_command(cmd);
-- return ret;
--}
--EXPORT_SYMBOL(scm_call);
--
--u32 scm_get_version(void)
--{
-- int context_id;
-- static u32 version = -1;
-- register u32 r0 asm("r0");
-- register u32 r1 asm("r1");
--
-- if (version != -1)
-- return version;
--
-- mutex_lock(&scm_lock);
--
-- r0 = 0x1 << 8;
-- r1 = (u32)&context_id;
-- do {
-- asm volatile(
-- __asmeq("%0", "r0")
-- __asmeq("%1", "r1")
-- __asmeq("%2", "r0")
-- __asmeq("%3", "r1")
--#ifdef REQUIRES_SEC
-- ".arch_extension sec\n"
--#endif
-- "smc #0 @ switch to secure world\n"
-- : "=r" (r0), "=r" (r1)
-- : "r" (r0), "r" (r1)
-- : "r2", "r3");
-- } while (r0 == SCM_INTERRUPTED);
--
-- version = r1;
-- mutex_unlock(&scm_lock);
--
-- return version;
--}
--EXPORT_SYMBOL(scm_get_version);
---- a/arch/arm/mach-msm/scm.h
-+++ /dev/null
-@@ -1,25 +0,0 @@
--/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-- *
-- * This program is free software; you can redistribute it and/or modify
-- * it under the terms of the GNU General Public License version 2 and
-- * only version 2 as published by the Free Software Foundation.
-- *
-- * This program 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.
-- */
--#ifndef __MACH_SCM_H
--#define __MACH_SCM_H
--
--#define SCM_SVC_BOOT 0x1
--#define SCM_SVC_PIL 0x2
--
--extern int scm_call(u32 svc_id, u32 cmd_id, const void *cmd_buf, size_t cmd_len,
-- void *resp_buf, size_t resp_len);
--
--#define SCM_VERSION(major, minor) (((major) << 16) | ((minor) & 0xFF))
--
--extern u32 scm_get_version(void);
--
--#endif
---- /dev/null
-+++ b/arch/arm/mach-qcom/Kconfig
-@@ -0,0 +1,33 @@
-+config ARCH_QCOM
-+ bool "Qualcomm Support" if ARCH_MULTI_V7
-+ select ARCH_REQUIRE_GPIOLIB
-+ select ARM_GIC
-+ select CLKSRC_OF
-+ select GENERIC_CLOCKEVENTS
-+ select HAVE_SMP
-+ select QCOM_SCM if SMP
-+ help
-+ Support for Qualcomm's devicetree based systems.
-+
-+if ARCH_QCOM
-+
-+menu "Qualcomm SoC Selection"
-+
-+config ARCH_MSM8X60
-+ bool "Enable support for MSM8X60"
-+ select CLKSRC_QCOM
-+
-+config ARCH_MSM8960
-+ bool "Enable support for MSM8960"
-+ select CLKSRC_QCOM
-+
-+config ARCH_MSM8974
-+ bool "Enable support for MSM8974"
-+ select HAVE_ARM_ARCH_TIMER
-+
-+endmenu
-+
-+config QCOM_SCM
-+ bool
-+
-+endif
---- /dev/null
-+++ b/arch/arm/mach-qcom/Makefile
-@@ -0,0 +1,5 @@
-+obj-y := board.o
-+obj-$(CONFIG_SMP) += platsmp.o
-+obj-$(CONFIG_QCOM_SCM) += scm.o scm-boot.o
-+
-+CFLAGS_scm.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1)
---- /dev/null
-+++ b/arch/arm/mach-qcom/board.c
-@@ -0,0 +1,40 @@
-+/* Copyright (c) 2010-2014 The Linux Foundation. All rights reserved.
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 and
-+ * only version 2 as published by the Free Software Foundation.
-+ *
-+ * This program 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.
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/of.h>
-+#include <linux/of_platform.h>
-+
-+#include <asm/mach/arch.h>
-+#include <asm/mach/map.h>
-+
-+extern struct smp_operations msm_smp_ops;
-+
-+static const char * const qcom_dt_match[] __initconst = {
-+ "qcom,msm8660-surf",
-+ "qcom,msm8960-cdp",
-+ NULL
-+};
-+
-+static const char * const apq8074_dt_match[] __initconst = {
-+ "qcom,apq8074-dragonboard",
-+ NULL
-+};
-+
-+DT_MACHINE_START(QCOM_DT, "Qualcomm (Flattened Device Tree)")
-+ .smp = smp_ops(msm_smp_ops),
-+ .dt_compat = qcom_dt_match,
-+MACHINE_END
-+
-+DT_MACHINE_START(APQ_DT, "Qualcomm (Flattened Device Tree)")
-+ .dt_compat = apq8074_dt_match,
-+MACHINE_END
---- /dev/null
-+++ b/arch/arm/mach-qcom/platsmp.c
-@@ -0,0 +1,137 @@
-+/*
-+ * Copyright (C) 2002 ARM Ltd.
-+ * All Rights Reserved
-+ * Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-+ * Copyright (c) 2014 The Linux Foundation. All rights reserved.
-+ *
-+ * This program 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.
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/errno.h>
-+#include <linux/delay.h>
-+#include <linux/device.h>
-+#include <linux/smp.h>
-+#include <linux/io.h>
-+
-+#include <asm/cputype.h>
-+#include <asm/smp_plat.h>
-+
-+#include "scm-boot.h"
-+
-+#define VDD_SC1_ARRAY_CLAMP_GFS_CTL 0x15A0
-+#define SCSS_CPU1CORE_RESET 0xD80
-+#define SCSS_DBG_STATUS_CORE_PWRDUP 0xE64
-+
-+extern void secondary_startup(void);
-+
-+static DEFINE_SPINLOCK(boot_lock);
-+
-+#ifdef CONFIG_HOTPLUG_CPU
-+static void __ref msm_cpu_die(unsigned int cpu)
-+{
-+ wfi();
-+}
-+#endif
-+
-+static inline int get_core_count(void)
-+{
-+ /* 1 + the PART[1:0] field of MIDR */
-+ return ((read_cpuid_id() >> 4) & 3) + 1;
-+}
-+
-+static void msm_secondary_init(unsigned int cpu)
-+{
-+ /*
-+ * Synchronise with the boot thread.
-+ */
-+ spin_lock(&boot_lock);
-+ spin_unlock(&boot_lock);
-+}
-+
-+static void prepare_cold_cpu(unsigned int cpu)
-+{
-+ int ret;
-+ ret = scm_set_boot_addr(virt_to_phys(secondary_startup),
-+ SCM_FLAG_COLDBOOT_CPU1);
-+ if (ret == 0) {
-+ void __iomem *sc1_base_ptr;
-+ sc1_base_ptr = ioremap_nocache(0x00902000, SZ_4K*2);
-+ if (sc1_base_ptr) {
-+ writel(0, sc1_base_ptr + VDD_SC1_ARRAY_CLAMP_GFS_CTL);
-+ writel(0, sc1_base_ptr + SCSS_CPU1CORE_RESET);
-+ writel(3, sc1_base_ptr + SCSS_DBG_STATUS_CORE_PWRDUP);
-+ iounmap(sc1_base_ptr);
-+ }
-+ } else
-+ printk(KERN_DEBUG "Failed to set secondary core boot "
-+ "address\n");
-+}
-+
-+static int msm_boot_secondary(unsigned int cpu, struct task_struct *idle)
-+{
-+ static int cold_boot_done;
-+
-+ /* Only need to bring cpu out of reset this way once */
-+ if (cold_boot_done == false) {
-+ prepare_cold_cpu(cpu);
-+ cold_boot_done = true;
-+ }
-+
-+ /*
-+ * set synchronisation state between this boot processor
-+ * and the secondary one
-+ */
-+ spin_lock(&boot_lock);
-+
-+ /*
-+ * Send the secondary CPU a soft interrupt, thereby causing
-+ * the boot monitor to read the system wide flags register,
-+ * and branch to the address found there.
-+ */
-+ arch_send_wakeup_ipi_mask(cpumask_of(cpu));
-+
-+ /*
-+ * now the secondary core is starting up let it run its
-+ * calibrations, then wait for it to finish
-+ */
-+ spin_unlock(&boot_lock);
-+
-+ return 0;
-+}
-+
-+/*
-+ * Initialise the CPU possible map early - this describes the CPUs
-+ * which may be present or become present in the system. The msm8x60
-+ * does not support the ARM SCU, so just set the possible cpu mask to
-+ * NR_CPUS.
-+ */
-+static void __init msm_smp_init_cpus(void)
-+{
-+ unsigned int i, ncores = get_core_count();
-+
-+ if (ncores > nr_cpu_ids) {
-+ pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
-+ ncores, nr_cpu_ids);
-+ ncores = nr_cpu_ids;
-+ }
-+
-+ for (i = 0; i < ncores; i++)
-+ set_cpu_possible(i, true);
-+}
-+
-+static void __init msm_smp_prepare_cpus(unsigned int max_cpus)
-+{
-+}
-+
-+struct smp_operations msm_smp_ops __initdata = {
-+ .smp_init_cpus = msm_smp_init_cpus,
-+ .smp_prepare_cpus = msm_smp_prepare_cpus,
-+ .smp_secondary_init = msm_secondary_init,
-+ .smp_boot_secondary = msm_boot_secondary,
-+#ifdef CONFIG_HOTPLUG_CPU
-+ .cpu_die = msm_cpu_die,
-+#endif
-+};
---- /dev/null
-+++ b/arch/arm/mach-qcom/scm-boot.c
-@@ -0,0 +1,39 @@
-+/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 and
-+ * only version 2 as published by the Free Software Foundation.
-+ *
-+ * This program 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 this program; if not, write to the Free Software
-+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-+ * 02110-1301, USA.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/slab.h>
-+
-+#include "scm.h"
-+#include "scm-boot.h"
-+
-+/*
-+ * Set the cold/warm boot address for one of the CPU cores.
-+ */
-+int scm_set_boot_addr(phys_addr_t addr, int flags)
-+{
-+ struct {
-+ unsigned int flags;
-+ phys_addr_t addr;
-+ } cmd;
-+
-+ cmd.addr = addr;
-+ cmd.flags = flags;
-+ return scm_call(SCM_SVC_BOOT, SCM_BOOT_ADDR,
-+ &cmd, sizeof(cmd), NULL, 0);
-+}
-+EXPORT_SYMBOL(scm_set_boot_addr);
---- /dev/null
-+++ b/arch/arm/mach-qcom/scm-boot.h
-@@ -0,0 +1,22 @@
-+/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 and
-+ * only version 2 as published by the Free Software Foundation.
-+ *
-+ * This program 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.
-+ */
-+#ifndef __MACH_SCM_BOOT_H
-+#define __MACH_SCM_BOOT_H
-+
-+#define SCM_BOOT_ADDR 0x1
-+#define SCM_FLAG_COLDBOOT_CPU1 0x1
-+#define SCM_FLAG_WARMBOOT_CPU1 0x2
-+#define SCM_FLAG_WARMBOOT_CPU0 0x4
-+
-+int scm_set_boot_addr(phys_addr_t addr, int flags);
-+
-+#endif
---- /dev/null
-+++ b/arch/arm/mach-qcom/scm.c
-@@ -0,0 +1,299 @@
-+/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 and
-+ * only version 2 as published by the Free Software Foundation.
-+ *
-+ * This program 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 this program; if not, write to the Free Software
-+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-+ * 02110-1301, USA.
-+ */
-+
-+#include <linux/slab.h>
-+#include <linux/io.h>
-+#include <linux/module.h>
-+#include <linux/mutex.h>
-+#include <linux/errno.h>
-+#include <linux/err.h>
-+
-+#include <asm/cacheflush.h>
-+
-+#include "scm.h"
-+
-+/* Cache line size for msm8x60 */
-+#define CACHELINESIZE 32
-+
-+#define SCM_ENOMEM -5
-+#define SCM_EOPNOTSUPP -4
-+#define SCM_EINVAL_ADDR -3
-+#define SCM_EINVAL_ARG -2
-+#define SCM_ERROR -1
-+#define SCM_INTERRUPTED 1
-+
-+static DEFINE_MUTEX(scm_lock);
-+
-+/**
-+ * struct scm_command - one SCM command buffer
-+ * @len: total available memory for command and response
-+ * @buf_offset: start of command buffer
-+ * @resp_hdr_offset: start of response buffer
-+ * @id: command to be executed
-+ * @buf: buffer returned from scm_get_command_buffer()
-+ *
-+ * An SCM command is laid out in memory as follows:
-+ *
-+ * ------------------- <--- struct scm_command
-+ * | command header |
-+ * ------------------- <--- scm_get_command_buffer()
-+ * | command buffer |
-+ * ------------------- <--- struct scm_response and
-+ * | response header | scm_command_to_response()
-+ * ------------------- <--- scm_get_response_buffer()
-+ * | response buffer |
-+ * -------------------
-+ *
-+ * There can be arbitrary padding between the headers and buffers so
-+ * you should always use the appropriate scm_get_*_buffer() routines
-+ * to access the buffers in a safe manner.
-+ */
-+struct scm_command {
-+ u32 len;
-+ u32 buf_offset;
-+ u32 resp_hdr_offset;
-+ u32 id;
-+ u32 buf[0];
-+};
-+
-+/**
-+ * struct scm_response - one SCM response buffer
-+ * @len: total available memory for response
-+ * @buf_offset: start of response data relative to start of scm_response
-+ * @is_complete: indicates if the command has finished processing
-+ */
-+struct scm_response {
-+ u32 len;
-+ u32 buf_offset;
-+ u32 is_complete;
-+};
-+
-+/**
-+ * alloc_scm_command() - Allocate an SCM command
-+ * @cmd_size: size of the command buffer
-+ * @resp_size: size of the response buffer
-+ *
-+ * Allocate an SCM command, including enough room for the command
-+ * and response headers as well as the command and response buffers.
-+ *
-+ * Returns a valid &scm_command on success or %NULL if the allocation fails.
-+ */
-+static struct scm_command *alloc_scm_command(size_t cmd_size, size_t resp_size)
-+{
-+ struct scm_command *cmd;
-+ size_t len = sizeof(*cmd) + sizeof(struct scm_response) + cmd_size +
-+ resp_size;
-+
-+ cmd = kzalloc(PAGE_ALIGN(len), GFP_KERNEL);
-+ if (cmd) {
-+ cmd->len = len;
-+ cmd->buf_offset = offsetof(struct scm_command, buf);
-+ cmd->resp_hdr_offset = cmd->buf_offset + cmd_size;
-+ }
-+ return cmd;
-+}
-+
-+/**
-+ * free_scm_command() - Free an SCM command
-+ * @cmd: command to free
-+ *
-+ * Free an SCM command.
-+ */
-+static inline void free_scm_command(struct scm_command *cmd)
-+{
-+ kfree(cmd);
-+}
-+
-+/**
-+ * scm_command_to_response() - Get a pointer to a scm_response
-+ * @cmd: command
-+ *
-+ * Returns a pointer to a response for a command.
-+ */
-+static inline struct scm_response *scm_command_to_response(
-+ const struct scm_command *cmd)
-+{
-+ return (void *)cmd + cmd->resp_hdr_offset;
-+}
-+
-+/**
-+ * scm_get_command_buffer() - Get a pointer to a command buffer
-+ * @cmd: command
-+ *
-+ * Returns a pointer to the command buffer of a command.
-+ */
-+static inline void *scm_get_command_buffer(const struct scm_command *cmd)
-+{
-+ return (void *)cmd->buf;
-+}
-+
-+/**
-+ * scm_get_response_buffer() - Get a pointer to a response buffer
-+ * @rsp: response
-+ *
-+ * Returns a pointer to a response buffer of a response.
-+ */
-+static inline void *scm_get_response_buffer(const struct scm_response *rsp)
-+{
-+ return (void *)rsp + rsp->buf_offset;
-+}
-+
-+static int scm_remap_error(int err)
-+{
-+ switch (err) {
-+ case SCM_ERROR:
-+ return -EIO;
-+ case SCM_EINVAL_ADDR:
-+ case SCM_EINVAL_ARG:
-+ return -EINVAL;
-+ case SCM_EOPNOTSUPP:
-+ return -EOPNOTSUPP;
-+ case SCM_ENOMEM:
-+ return -ENOMEM;
-+ }
-+ return -EINVAL;
-+}
-+
-+static u32 smc(u32 cmd_addr)
-+{
-+ int context_id;
-+ register u32 r0 asm("r0") = 1;
-+ register u32 r1 asm("r1") = (u32)&context_id;
-+ register u32 r2 asm("r2") = cmd_addr;
-+ do {
-+ asm volatile(
-+ __asmeq("%0", "r0")
-+ __asmeq("%1", "r0")
-+ __asmeq("%2", "r1")
-+ __asmeq("%3", "r2")
-+#ifdef REQUIRES_SEC
-+ ".arch_extension sec\n"
-+#endif
-+ "smc #0 @ switch to secure world\n"
-+ : "=r" (r0)
-+ : "r" (r0), "r" (r1), "r" (r2)
-+ : "r3");
-+ } while (r0 == SCM_INTERRUPTED);
-+
-+ return r0;
-+}
-+
-+static int __scm_call(const struct scm_command *cmd)
-+{
-+ int ret;
-+ u32 cmd_addr = virt_to_phys(cmd);
-+
-+ /*
-+ * Flush the entire cache here so callers don't have to remember
-+ * to flush the cache when passing physical addresses to the secure
-+ * side in the buffer.
-+ */
-+ flush_cache_all();
-+ ret = smc(cmd_addr);
-+ if (ret < 0)
-+ ret = scm_remap_error(ret);
-+
-+ return ret;
-+}
-+
-+/**
-+ * scm_call() - Send an SCM command
-+ * @svc_id: service identifier
-+ * @cmd_id: command identifier
-+ * @cmd_buf: command buffer
-+ * @cmd_len: length of the command buffer
-+ * @resp_buf: response buffer
-+ * @resp_len: length of the response buffer
-+ *
-+ * Sends a command to the SCM and waits for the command to finish processing.
-+ */
-+int scm_call(u32 svc_id, u32 cmd_id, const void *cmd_buf, size_t cmd_len,
-+ void *resp_buf, size_t resp_len)
-+{
-+ int ret;
-+ struct scm_command *cmd;
-+ struct scm_response *rsp;
-+
-+ cmd = alloc_scm_command(cmd_len, resp_len);
-+ if (!cmd)
-+ return -ENOMEM;
-+
-+ cmd->id = (svc_id << 10) | cmd_id;
-+ if (cmd_buf)
-+ memcpy(scm_get_command_buffer(cmd), cmd_buf, cmd_len);
-+
-+ mutex_lock(&scm_lock);
-+ ret = __scm_call(cmd);
-+ mutex_unlock(&scm_lock);
-+ if (ret)
-+ goto out;
-+
-+ rsp = scm_command_to_response(cmd);
-+ do {
-+ u32 start = (u32)rsp;
-+ u32 end = (u32)scm_get_response_buffer(rsp) + resp_len;
-+ start &= ~(CACHELINESIZE - 1);
-+ while (start < end) {
-+ asm ("mcr p15, 0, %0, c7, c6, 1" : : "r" (start)
-+ : "memory");
-+ start += CACHELINESIZE;
-+ }
-+ } while (!rsp->is_complete);
-+
-+ if (resp_buf)
-+ memcpy(resp_buf, scm_get_response_buffer(rsp), resp_len);
-+out:
-+ free_scm_command(cmd);
-+ return ret;
-+}
-+EXPORT_SYMBOL(scm_call);
-+
-+u32 scm_get_version(void)
-+{
-+ int context_id;
-+ static u32 version = -1;
-+ register u32 r0 asm("r0");
-+ register u32 r1 asm("r1");
-+
-+ if (version != -1)
-+ return version;
-+
-+ mutex_lock(&scm_lock);
-+
-+ r0 = 0x1 << 8;
-+ r1 = (u32)&context_id;
-+ do {
-+ asm volatile(
-+ __asmeq("%0", "r0")
-+ __asmeq("%1", "r1")
-+ __asmeq("%2", "r0")
-+ __asmeq("%3", "r1")
-+#ifdef REQUIRES_SEC
-+ ".arch_extension sec\n"
-+#endif
-+ "smc #0 @ switch to secure world\n"
-+ : "=r" (r0), "=r" (r1)
-+ : "r" (r0), "r" (r1)
-+ : "r2", "r3");
-+ } while (r0 == SCM_INTERRUPTED);
-+
-+ version = r1;
-+ mutex_unlock(&scm_lock);
-+
-+ return version;
-+}
-+EXPORT_SYMBOL(scm_get_version);
---- /dev/null
-+++ b/arch/arm/mach-qcom/scm.h
-@@ -0,0 +1,25 @@
-+/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 and
-+ * only version 2 as published by the Free Software Foundation.
-+ *
-+ * This program 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.
-+ */
-+#ifndef __MACH_SCM_H
-+#define __MACH_SCM_H
-+
-+#define SCM_SVC_BOOT 0x1
-+#define SCM_SVC_PIL 0x2
-+
-+extern int scm_call(u32 svc_id, u32 cmd_id, const void *cmd_buf, size_t cmd_len,
-+ void *resp_buf, size_t resp_len);
-+
-+#define SCM_VERSION(major, minor) (((major) << 16) | ((minor) & 0xFF))
-+
-+extern u32 scm_get_version(void);
-+
-+#endif
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