[brcm47xx] Port to kernel 2.6.30.

[openwrt/svn-archive/archive.git] / target / linux / brcm47xx / files-2.6.28 / arch / mips / bcm47xx / nvram.c

diff --git a/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/nvram.c b/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/nvram.c
deleted file mode 100644 (file)
index 3f32ad9..0000000
--- a/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/nvram.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * BCM947xx nvram variable access
- *
- * Copyright 2005, Broadcom Corporation
- * Copyright 2006, Felix Fietkau <nbd@openwrt.org>
- * 
- * 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.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/ssb/ssb.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/slab.h>
-#include <asm/byteorder.h>
-#include <asm/bootinfo.h>
-#include <asm/addrspace.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include <nvram.h>
-
-#define MB * 1048576
-extern struct ssb_bus ssb;
-
-static char nvram_buf[NVRAM_SPACE];
-static int cfe_env;
-extern char *cfe_env_get(char *nv_buf, const char *name);
-               
-/* Probe for NVRAM header */
-static void __init early_nvram_init(void)
-{
-       struct ssb_mipscore *mcore = &ssb.mipscore;
-       struct nvram_header *header;
-       int i;
-       u32 base, lim, off;
-       u32 *src, *dst;
-       
-       base = mcore->flash_window;
-       lim = mcore->flash_window_size;
-       cfe_env = 0;
-
-       
-       /* XXX: hack for supporting the CFE environment stuff on WGT634U */
-       if (lim >= 8 MB) {
-               src = (u32 *) KSEG1ADDR(base + 8 MB - 0x2000);
-               dst = (u32 *) nvram_buf;
-
-               if ((*src & 0xff00ff) == 0x000001) {
-                       printk("early_nvram_init: WGT634U NVRAM found.\n");
-
-                       for (i = 0; i < 0x1ff0; i++) {
-                               if (*src == 0xFFFFFFFF)
-                                       break;
-                               *dst++ = *src++;
-                       }
-                       cfe_env = 1;
-                       return;
-               }
-       }
-
-       off = 0x20000;
-       while (off <= lim) {
-               /* Windowed flash access */
-               header = (struct nvram_header *) KSEG1ADDR(base + off - NVRAM_SPACE);
-               if (header->magic == NVRAM_HEADER)
-                       goto found;
-               off <<= 1;
-       }
-
-       /* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
-       header = (struct nvram_header *) KSEG1ADDR(base + 4096);
-       if (header->magic == NVRAM_HEADER)
-               goto found;
-       
-       header = (struct nvram_header *) KSEG1ADDR(base + 1024);
-       if (header->magic == NVRAM_HEADER)
-               goto found;
-       
-       return;
-
-found:
-       src = (u32 *) header;
-       dst = (u32 *) nvram_buf;
-       for (i = 0; i < sizeof(struct nvram_header); i += 4)
-               *dst++ = *src++;
-       for (; i < header->len && i < NVRAM_SPACE; i += 4)
-               *dst++ = le32_to_cpu(*src++);
-}
-
-char *nvram_get(const char *name)
-{
-       char *var, *value, *end, *eq;
-
-       if (!name)
-               return NULL;
-
-       if (!nvram_buf[0])
-               early_nvram_init();
-
-       if (cfe_env)
-               return cfe_env_get(nvram_buf, name);
-
-       /* Look for name=value and return value */
-       var = &nvram_buf[sizeof(struct nvram_header)];
-       end = nvram_buf + sizeof(nvram_buf) - 2;
-       end[0] = end[1] = '\0';
-       for (; *var; var = value + strlen(value) + 1) {
-               if (!(eq = strchr(var, '=')))
-                       break;
-               value = eq + 1;
-               if ((eq - var) == strlen(name) && strncmp(var, name, (eq - var)) == 0)
-                       return value;
-       }
-
-       return NULL;
-}
-
-EXPORT_SYMBOL(nvram_get);