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Diffstat (limited to 'target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch')
-rw-r--r--target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch151
1 files changed, 151 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch b/target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch
new file mode 100644
index 0000000..2babb9e
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.2/040-bcm963xx_flashmap.patch
@@ -0,0 +1,151 @@
+From a4d005c91d403d9f3d0272db6cc46202c06ec774 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 | 32 ++++++++++++++++++++++++----
+ drivers/mtd/redboot.c | 13 +++++++++--
+ 3 files changed, 38 insertions(+), 26 deletions(-)
+
+--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
+@@ -822,20 +822,6 @@ 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 */
+@@ -845,12 +831,9 @@ 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
+@@ -28,6 +28,8 @@
+ #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>
+
+@@ -36,6 +38,14 @@
+
+ #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;
+@@ -220,9 +230,21 @@ probe_ok:
+ }
+ }
+ } 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 mtd_device_register(bcm963xx_mtd_info, parsed_parts,
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -58,7 +58,7 @@ 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,
+ struct mtd_part_parser_data *data)
+ {
+@@ -75,6 +75,7 @@ static int parse_redboot_partitions(stru
+ int nulllen = 0;
+ int numslots;
+ unsigned long offset;
++ unsigned long fis_origin = 0;
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+ static char nullstring[] = "unallocated";
+ #endif
+@@ -181,6 +182,16 @@ static int parse_redboot_partitions(stru
+ goto out;
+ }
+
++ if (data && data->origin) {
++ fis_origin = data->origin;
++ } else {
++ 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;
+
+@@ -201,10 +212,10 @@ static int parse_redboot_partitions(stru
+ goto out;
+ }
+ new_fl->img = &buf[i];
+- if (data && data->origin)
+- buf[i].flash_base -= data->origin;
+- else
+- buf[i].flash_base &= master->size-1;
++ if (fis_origin)
++ buf[i].flash_base -= fis_origin;
++
++ 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_