diff options
Diffstat (limited to 'target/linux/generic/patches-3.18/041-mtd-bcm47xxpart-backports-from-3.20.patch')
-rw-r--r-- | target/linux/generic/patches-3.18/041-mtd-bcm47xxpart-backports-from-3.20.patch | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/target/linux/generic/patches-3.18/041-mtd-bcm47xxpart-backports-from-3.20.patch b/target/linux/generic/patches-3.18/041-mtd-bcm47xxpart-backports-from-3.20.patch deleted file mode 100644 index 59180c2084..0000000000 --- a/target/linux/generic/patches-3.18/041-mtd-bcm47xxpart-backports-from-3.20.patch +++ /dev/null @@ -1,95 +0,0 @@ ---- a/drivers/mtd/bcm47xxpart.c -+++ b/drivers/mtd/bcm47xxpart.c -@@ -15,6 +15,8 @@ - #include <linux/mtd/mtd.h> - #include <linux/mtd/partitions.h> - -+#include <uapi/linux/magic.h> -+ - /* - * NAND flash on Netgear R6250 was verified to contain 15 partitions. - * This will result in allocating too big array for some old devices, but the -@@ -39,7 +41,8 @@ - #define ML_MAGIC1 0x39685a42 - #define ML_MAGIC2 0x26594131 - #define TRX_MAGIC 0x30524448 --#define SQSH_MAGIC 0x71736873 /* shsq */ -+#define SHSQ_MAGIC 0x71736873 /* shsq (weird ZTE H218N endianness) */ -+#define UBI_EC_MAGIC 0x23494255 /* UBI# */ - - struct trx_header { - uint32_t magic; -@@ -50,7 +53,7 @@ struct trx_header { - uint32_t offset[3]; - } __packed; - --static void bcm47xxpart_add_part(struct mtd_partition *part, char *name, -+static void bcm47xxpart_add_part(struct mtd_partition *part, const char *name, - u64 offset, uint32_t mask_flags) - { - part->name = name; -@@ -58,6 +61,26 @@ static void bcm47xxpart_add_part(struct - part->mask_flags = mask_flags; - } - -+static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master, -+ size_t offset) -+{ -+ uint32_t buf; -+ size_t bytes_read; -+ -+ if (mtd_read(master, offset, sizeof(buf), &bytes_read, -+ (uint8_t *)&buf) < 0) { -+ pr_err("mtd_read error while parsing (offset: 0x%X)!\n", -+ offset); -+ goto out_default; -+ } -+ -+ if (buf == UBI_EC_MAGIC) -+ return "ubi"; -+ -+out_default: -+ return "rootfs"; -+} -+ - static int bcm47xxpart_parse(struct mtd_info *master, - struct mtd_partition **pparts, - struct mtd_part_parser_data *data) -@@ -73,8 +96,12 @@ static int bcm47xxpart_parse(struct mtd_ - int last_trx_part = -1; - int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, }; - -- if (blocksize <= 0x10000) -- blocksize = 0x10000; -+ /* -+ * Some really old flashes (like AT45DB*) had smaller erasesize-s, but -+ * partitions were aligned to at least 0x1000 anyway. -+ */ -+ if (blocksize < 0x1000) -+ blocksize = 0x1000; - - /* Alloc */ - parts = kzalloc(sizeof(struct mtd_partition) * BCM47XXPART_MAX_PARTS, -@@ -186,8 +213,11 @@ static int bcm47xxpart_parse(struct mtd_ - * we want to have jffs2 (overlay) in the same mtd. - */ - if (trx->offset[i]) { -+ const char *name; -+ -+ name = bcm47xxpart_trx_data_part_name(master, offset + trx->offset[i]); - bcm47xxpart_add_part(&parts[curr_part++], -- "rootfs", -+ name, - offset + trx->offset[i], - 0); - i++; -@@ -205,7 +235,8 @@ static int bcm47xxpart_parse(struct mtd_ - } - - /* Squashfs on devices not using TRX */ -- if (buf[0x000 / 4] == SQSH_MAGIC) { -+ if (le32_to_cpu(buf[0x000 / 4]) == SQUASHFS_MAGIC || -+ buf[0x000 / 4] == SHSQ_MAGIC) { - bcm47xxpart_add_part(&parts[curr_part++], "rootfs", - offset, 0); - continue; |