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authorGabor Juhos <juhosg@openwrt.org>2010-03-14 18:20:04 +0000
committerGabor Juhos <juhosg@openwrt.org>2010-03-14 18:20:04 +0000
commit3b6b74ee378564758fcebb2e96348fc132b20c02 (patch)
tree89de2c9b6cde8ce85661612e13ff0183c712e02d /target/linux/atheros/patches-2.6.32
parenta4d823a9e34c1beae7b8da978bd0f40b7572f8f4 (diff)
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atheros: fix FIS directory parsing on Top Boot flash chips
SVN-Revision: 20213
Diffstat (limited to 'target/linux/atheros/patches-2.6.32')
-rw-r--r--target/linux/atheros/patches-2.6.32/141-redboot_various_erase_size_fix.patch72
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/atheros/patches-2.6.32/141-redboot_various_erase_size_fix.patch b/target/linux/atheros/patches-2.6.32/141-redboot_various_erase_size_fix.patch
new file mode 100644
index 0000000..b9cb0b4
--- /dev/null
+++ b/target/linux/atheros/patches-2.6.32/141-redboot_various_erase_size_fix.patch
@@ -0,0 +1,72 @@
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -39,6 +39,22 @@ static inline int redboot_checksum(struc
+ return 1;
+ }
+
++static uint32_t mtd_get_offset_erasesize(struct mtd_info *mtd, uint64_t offset)
++{
++ struct mtd_erase_region_info *regions = mtd->eraseregions;
++ int i;
++
++ for (i = 0; i < mtd->numeraseregions; i++) {
++ if (regions[i].offset +
++ regions[i].numblocks * regions[i].erasesize <= offset)
++ continue;
++
++ return regions[i].erasesize;
++ }
++
++ return mtd->erasesize;
++}
++
+ static int parse_redboot_partitions(struct mtd_info *master,
+ struct mtd_partition **pparts,
+ unsigned long fis_origin)
+@@ -55,6 +71,7 @@ static int parse_redboot_partitions(stru
+ int namelen = 0;
+ int nulllen = 0;
+ int numslots;
++ int first_slot;
+ unsigned long offset;
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+ static char nullstring[] = "unallocated";
+@@ -168,7 +185,10 @@ static int parse_redboot_partitions(stru
+ goto out;
+ }
+
+- for (i = 0; i < numslots; i++) {
++ first_slot = (buf[i].flash_base & (master->erasesize - 1)) /
++ sizeof(struct fis_image_desc);
++
++ for (i = first_slot; i < first_slot + numslots; i++) {
+ struct fis_list *new_fl, **prev;
+
+ if (buf[i].name[0] == 0xff) {
+@@ -244,12 +264,13 @@ static int parse_redboot_partitions(stru
+ }
+ #endif
+ for ( ; i<nrparts; i++) {
+- if(max_offset < buf[i].flash_base + buf[i].size)
+- max_offset = buf[i].flash_base + buf[i].size;
+ parts[i].size = fl->img->size;
+ parts[i].offset = fl->img->flash_base;
+ parts[i].name = names;
+
++ if (max_offset < parts[i].offset + parts[i].size)
++ max_offset = parts[i].offset + parts[i].size;
++
+ strcpy(names, fl->img->name);
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_READONLY
+ if (!memcmp(names, "RedBoot", 8) ||
+@@ -279,7 +300,9 @@ static int parse_redboot_partitions(stru
+ fl = fl->next;
+ kfree(tmp_fl);
+ }
+- if(master->size - max_offset >= master->erasesize)
++
++ if (master->size - max_offset >=
++ mtd_get_offset_erasesize(master, max_offset))
+ {
+ parts[nrparts].size = master->size - max_offset;
+ parts[nrparts].offset = max_offset;