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-rw-r--r--target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch380
1 files changed, 380 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch b/target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch
new file mode 100644
index 000000000..ad7d73ad1
--- /dev/null
+++ b/target/linux/brcm63xx/patches-2.6.35/040-bcm963xx_flashmap.patch
@@ -0,0 +1,380 @@
+From e734ace5baa04e0e8af1d4483475fbd6bd2b32a1 Mon Sep 17 00:00:00 2001
+From: Axel Gembe <ago@bastart.eu.org>
+Date: Mon, 12 May 2008 18:54:09 +0200
+Subject: [PATCH] bcm963xx: flashmap support
+
+
+Signed-off-by: Axel Gembe <ago@bastart.eu.org>
+---
+ drivers/mtd/maps/Kconfig | 7 +++++++
+ drivers/mtd/maps/Makefile | 1 +
+ drivers/mtd/redboot.c | 13 ++++++++++---
+ 3 files changed, 18 insertions(+), 3 deletions(-)
+
+--- a/drivers/mtd/maps/Kconfig
++++ b/drivers/mtd/maps/Kconfig
+@@ -251,6 +251,13 @@ config MTD_NETtel
+ help
+ Support for flash chips on NETtel/SecureEdge/SnapGear boards.
+
++config MTD_BCM963XX
++ tristate "BCM963xx Flash device"
++ depends on MIPS && BCM63XX
++ help
++ Flash memory access on BCM963xx boards. Currently only works with
++ RedBoot and CFE.
++
+ config MTD_DILNETPC
+ tristate "CFI Flash device mapped on DIL/Net PC"
+ depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -39,7 +39,7 @@ static inline int redboot_checksum(struc
+ return 1;
+ }
+
+-static int parse_redboot_partitions(struct mtd_info *master,
++int parse_redboot_partitions(struct mtd_info *master,
+ struct mtd_partition **pparts,
+ unsigned long fis_origin)
+ {
+@@ -162,6 +162,14 @@ static int parse_redboot_partitions(stru
+ goto out;
+ }
+
++ if (!fis_origin) {
++ for (i = 0; i < numslots; i++) {
++ if (!strncmp(buf[i].name, "RedBoot", 8)) {
++ fis_origin = (buf[i].flash_base & (master->size << 1) - 1);
++ }
++ }
++ }
++
+ for (i = 0; i < numslots; i++) {
+ struct fis_list *new_fl, **prev;
+
+@@ -184,9 +192,8 @@ static int parse_redboot_partitions(stru
+ new_fl->img = &buf[i];
+ if (fis_origin) {
+ buf[i].flash_base -= fis_origin;
+- } else {
+- buf[i].flash_base &= master->size-1;
+ }
++ buf[i].flash_base &= (master->size << 1) - 1;
+
+ /* I'm sure the JFFS2 code has done me permanent damage.
+ * I now think the following is _normal_
+--- a/drivers/mtd/maps/Makefile
++++ b/drivers/mtd/maps/Makefile
+@@ -59,3 +59,4 @@ obj-$(CONFIG_MTD_BFIN_ASYNC) += bfin-asy
+ obj-$(CONFIG_MTD_RBTX4939) += rbtx4939-flash.o
+ obj-$(CONFIG_MTD_VMU) += vmu-flash.o
+ obj-$(CONFIG_MTD_GPIO_ADDR) += gpio-addr-flash.o
++obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-flash.o
+--- /dev/null
++++ b/drivers/mtd/maps/bcm963xx-flash.c
+@@ -0,0 +1,267 @@
++/*
++ * Copyright (C) 2006-2008 Florian Fainelli <florian@openwrt.org>
++ * Mike Albon <malbon@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.
++ *
++ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
++ */
++
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/platform_device.h>
++
++#include <bcm_tag.h>
++#include <asm/io.h>
++
++#define BUSWIDTH 2 /* Buswidth */
++#define EXTENDED_SIZE 0xBFC00000 /* Extended flash address */
++
++#define PFX KBUILD_MODNAME ": "
++
++extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin);
++static struct mtd_partition *parsed_parts;
++
++static struct mtd_info *bcm963xx_mtd_info;
++
++static struct map_info bcm963xx_map = {
++ .name = "bcm963xx",
++ .bankwidth = BUSWIDTH,
++};
++
++
++static int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts)
++{
++ int nrparts = 3, curpart = 0; /* CFE,NVRAM and global LINUX are always present. */
++ struct bcm_tag *buf;
++ struct mtd_partition *parts;
++ int ret;
++ size_t retlen;
++ unsigned int rootfsaddr, kerneladdr, spareaddr;
++ unsigned int rootfslen, kernellen, sparelen, totallen;
++ int namelen = 0;
++ int i;
++ char *boardid;
++ char *tagversion;
++
++ /* Allocate memory for buffer */
++ buf = vmalloc(sizeof(struct bcm_tag));
++ if (!buf)
++ return -ENOMEM;
++
++ /* Get the tag */
++ ret = master->read(master, master->erasesize, sizeof(struct bcm_tag), &retlen, (void *)buf);
++ if (retlen != sizeof(struct bcm_tag)){
++ vfree(buf);
++ return -EIO;
++ }
++
++ sscanf(buf->kernelAddress, "%u", &kerneladdr);
++ sscanf(buf->kernelLength, "%u", &kernellen);
++ sscanf(buf->totalLength, "%u", &totallen);
++ tagversion = &(buf->tagVersion[0]);
++ boardid = &(buf->boardid[0]);
++
++ printk(KERN_INFO PFX "CFE boot tag found with version %s and board type %s\n",tagversion, boardid);
++
++ kerneladdr = kerneladdr - EXTENDED_SIZE;
++ rootfsaddr = kerneladdr + kernellen;
++ spareaddr = roundup(totallen, master->erasesize) + master->erasesize;
++ sparelen = master->size - spareaddr - master->erasesize;
++ rootfslen = spareaddr - rootfsaddr;
++
++ /* Determine number of partitions */
++ namelen = 8;
++ if (rootfslen > 0){
++ nrparts++;
++ namelen =+ 6;
++ };
++ if (kernellen > 0) {
++ nrparts++;
++ namelen =+ 6;
++ };
++
++ /* Ask kernel for more memory */
++ parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL);
++ if (!parts) {
++ vfree(buf);
++ return -ENOMEM;
++ };
++
++ /* Start building partition list */
++ parts[curpart].name = "CFE";
++ parts[curpart].offset = 0;
++ parts[curpart].size = master->erasesize;
++ curpart++;
++
++ if (kernellen > 0) {
++ parts[curpart].name = "kernel";
++ parts[curpart].offset = kerneladdr;
++ parts[curpart].size = kernellen;
++ curpart++;
++ };
++
++ if (rootfslen > 0) {
++ parts[curpart].name = "rootfs";
++ parts[curpart].offset = rootfsaddr;
++ parts[curpart].size = rootfslen;
++ if (sparelen > 0)
++ parts[curpart].size += sparelen;
++ curpart++;
++ };
++
++ parts[curpart].name = "nvram";
++ parts[curpart].offset = master->size - master->erasesize;
++ parts[curpart].size = master->erasesize;
++
++ /* Global partition "linux" to make easy firmware upgrade */
++ curpart++;
++ parts[curpart].name = "linux";
++ parts[curpart].offset = parts[0].size;
++ parts[curpart].size = master->size - parts[0].size - parts[3].size;
++
++ for (i = 0; i < nrparts; i++)
++ printk(KERN_INFO PFX "Partition %d is %s offset %lx and length %lx\n", i, parts[i].name, (long unsigned int)(parts[i].offset), (long unsigned int)(parts[i].size));
++
++ printk(KERN_INFO PFX "Spare partition is %x offset and length %x\n", spareaddr, sparelen);
++ *pparts = parts;
++ vfree(buf);
++
++ return nrparts;
++};
++
++static int bcm963xx_detect_cfe(struct mtd_info *master)
++{
++ int idoffset = 0x4e0;
++ static char idstring[8] = "CFE1CFE1";
++ char buf[9];
++ int ret;
++ size_t retlen;
++
++ ret = master->read(master, idoffset, 8, &retlen, (void *)buf);
++ buf[retlen] = 0;
++ printk(KERN_INFO PFX "Read Signature value of %s\n", buf);
++
++ return strncmp(idstring, buf, 8);
++}
++
++static int bcm963xx_probe(struct platform_device *pdev)
++{
++ int err = 0;
++ int parsed_nr_parts = 0;
++ char *part_type;
++ struct resource *r;
++
++ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ bcm963xx_map.phys = r->start;
++ bcm963xx_map.size = (r->end - r->start) + 1;
++ bcm963xx_map.virt = ioremap(r->start, r->end - r->start + 1);
++
++ if (!bcm963xx_map.virt) {
++ printk(KERN_ERR PFX "Failed to ioremap\n");
++ return -EIO;
++ }
++ printk(KERN_INFO PFX "0x%08lx at 0x%08x\n", bcm963xx_map.size, bcm963xx_map.phys);
++
++ simple_map_init(&bcm963xx_map);
++
++ bcm963xx_mtd_info = do_map_probe("cfi_probe", &bcm963xx_map);
++ if (!bcm963xx_mtd_info) {
++ printk(KERN_ERR PFX "Failed to probe using CFI\n");
++ err = -EIO;
++ goto err_probe;
++ }
++
++ bcm963xx_mtd_info->owner = THIS_MODULE;
++
++ /* This is mutually exclusive */
++ if (bcm963xx_detect_cfe(bcm963xx_mtd_info) == 0) {
++ printk(KERN_INFO PFX "CFE bootloader detected\n");
++ if (parsed_nr_parts == 0) {
++ int ret = parse_cfe_partitions(bcm963xx_mtd_info, &parsed_parts);
++ if (ret > 0) {
++ part_type = "CFE";
++ parsed_nr_parts = ret;
++ }
++ }
++ } else {
++ printk(KERN_INFO PFX "assuming RedBoot bootloader\n");
++ if (bcm963xx_mtd_info->size > 0x00400000) {
++ printk(KERN_INFO PFX "Support for extended flash memory size : 0x%lx ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd_info->size);
++ bcm963xx_map.virt = (u32)(EXTENDED_SIZE);
++ }
++
++#ifdef CONFIG_MTD_REDBOOT_PARTS
++ if (parsed_nr_parts == 0) {
++ int ret = parse_redboot_partitions(bcm963xx_mtd_info, &parsed_parts, 0);
++ if (ret > 0) {
++ part_type = "RedBoot";
++ parsed_nr_parts = ret;
++ }
++ }
++#endif
++ }
++
++ return add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts);
++
++err_probe:
++ iounmap(bcm963xx_map.virt);
++ return err;
++}
++
++static int bcm963xx_remove(struct platform_device *pdev)
++{
++ if (bcm963xx_mtd_info) {
++ del_mtd_partitions(bcm963xx_mtd_info);
++ map_destroy(bcm963xx_mtd_info);
++ }
++
++ if (bcm963xx_map.virt) {
++ iounmap(bcm963xx_map.virt);
++ bcm963xx_map.virt = 0;
++ }
++
++ return 0;
++}
++
++static struct platform_driver bcm63xx_mtd_dev = {
++ .probe = bcm963xx_probe,
++ .remove = bcm963xx_remove,
++ .driver = {
++ .name = "bcm963xx-flash",
++ .owner = THIS_MODULE,
++ },
++};
++
++static int __init bcm963xx_mtd_init(void)
++{
++ return platform_driver_register(&bcm63xx_mtd_dev);
++}
++
++static void __exit bcm963xx_mtd_exit(void)
++{
++ platform_driver_unregister(&bcm63xx_mtd_dev);
++}
++
++module_init(bcm963xx_mtd_init);
++module_exit(bcm963xx_mtd_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("Broadcom BCM63xx MTD partition parser/mapping for CFE and RedBoot");
++MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
++MODULE_AUTHOR("Mike Albon <malbon@openwrt.org>");
+--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
+@@ -816,20 +816,6 @@ void __init board_setup(void)
+ panic("unexpected CPU for bcm963xx board");
+ }
+
+-static struct mtd_partition mtd_partitions[] = {
+- {
+- .name = "cfe",
+- .offset = 0x0,
+- .size = 0x40000,
+- }
+-};
+-
+-static struct physmap_flash_data flash_data = {
+- .width = 2,
+- .nr_parts = ARRAY_SIZE(mtd_partitions),
+- .parts = mtd_partitions,
+-};
+-
+ static struct resource mtd_resources[] = {
+ {
+ .start = 0, /* filled at runtime */
+@@ -839,12 +825,9 @@ static struct resource mtd_resources[] =
+ };
+
+ static struct platform_device mtd_dev = {
+- .name = "physmap-flash",
++ .name = "bcm963xx-flash",
+ .resource = mtd_resources,
+ .num_resources = ARRAY_SIZE(mtd_resources),
+- .dev = {
+- .platform_data = &flash_data,
+- },
+ };
+
+ static struct gpio_led_platform_data bcm63xx_led_data;
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