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Diffstat (limited to 'target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch')
-rw-r--r--target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch159
1 files changed, 159 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch b/target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch
new file mode 100644
index 0000000000..d08b9b12e7
--- /dev/null
+++ b/target/linux/brcm63xx/patches-2.6.37/040-bcm963xx_flashmap.patch
@@ -0,0 +1,159 @@
+From b1096781081b328fdac0e14a726ea04c2e9545c7 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>
+---
+ arch/mips/bcm63xx/boards/board_bcm963xx.c | 19 +---------------
+ drivers/mtd/maps/bcm963xx-flash.c | 34 ++++++++++++++++++++++++----
+ drivers/mtd/redboot.c | 13 ++++++++--
+ 3 files changed, 40 insertions(+), 26 deletions(-)
+
+--- 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;
+--- a/drivers/mtd/maps/bcm963xx-flash.c
++++ b/drivers/mtd/maps/bcm963xx-flash.c
+@@ -27,6 +27,8 @@
+ #include <linux/vmalloc.h>
+ #include <linux/platform_device.h>
+ #include <linux/io.h>
++#include <linux/magic.h>
++#include <linux/jffs2.h>
+
+ #include <asm/mach-bcm63xx/bcm963xx_tag.h>
+
+@@ -35,6 +37,14 @@
+
+ #define PFX KBUILD_MODNAME ": "
+
++struct squashfs_super_block {
++ __le32 s_magic;
++ __le32 pad0[9];
++ __le64 bytes_used;
++};
++
++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;
+@@ -56,7 +66,7 @@ static int parse_cfe_partitions(struct m
+ unsigned int rootfsaddr, kerneladdr, spareaddr;
+ unsigned int rootfslen, kernellen, sparelen, totallen;
+ int namelen = 0;
+- int i;
++ int i, offset;
+ char *boardid;
+ char *tagversion;
+
+@@ -84,9 +94,11 @@ static int parse_cfe_partitions(struct m
+
+ kerneladdr = kerneladdr - BCM63XX_EXTENDED_SIZE;
+ rootfsaddr = kerneladdr + kernellen;
++
++ rootfslen = ( ( rootfslen % master->erasesize ) > 0 ? (((rootfslen / master->erasesize) + 1 ) * master->erasesize) : rootfslen);
++
+ spareaddr = roundup(totallen, master->erasesize) + master->erasesize;
+ sparelen = master->size - spareaddr - master->erasesize;
+- rootfslen = spareaddr - rootfsaddr;
+
+ /* Determine number of partitions */
+ namelen = 8;
+@@ -214,9 +226,21 @@ static int bcm963xx_probe(struct platfor
+ }
+ }
+ } else {
+- dev_info(&pdev->dev, "unsupported bootloader\n");
+- err = -ENODEV;
+- goto err_probe;
++ 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)(BCM63XX_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,
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -57,7 +57,7 @@ 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)
+ {
+@@ -180,6 +180,14 @@ 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;
+
+@@ -202,9 +210,8 @@ 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_