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mtd: mtd_blk: map the part address if dev is mtd_blk 

The blk_dread will occor error if the image is packed with multiple
firmwares, for example boot.img, when nand or spi nand have bad block.
So call mtd_blk_map_table_init to remap part address to make sure
reading correct data.

Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>
Change-Id: Icebc6b1c5a10758efa615424d0706b9ed6ec23ad
This commit is contained in:
Jason Zhu 2020-05-22 11:58:49 +08:00
parent 2b7be5df0e
commit a07b97f223
2 changed files with 25 additions and 0 deletions
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24
drivers/mtd/mtd_blk.c
View File

@ -103,6 +103,30 @@ static bool get_mtd_blk_map_address(struct mtd_info *mtd, loff_t *off)
return mapped; return mapped;
} }
void mtd_blk_map_partitions(struct blk_desc *desc)
{
disk_partition_t info;
int i, ret;
if (!desc)
return;
if (desc->if_type != IF_TYPE_MTD)
return;
for (i = 1; i < MAX_SEARCH_PARTITIONS; i++) {
ret = part_get_info(desc, i, &info);
if (ret != 0)
continue;
if (mtd_blk_map_table_init(desc,
info.start << 9,
info.size << 9)) {
printf("mtd block map table fail\n");
}
}
}
static __maybe_unused int mtd_map_read(struct mtd_info *mtd, loff_t offset, static __maybe_unused int mtd_map_read(struct mtd_info *mtd, loff_t offset,
size_t *length, size_t *actual, size_t *length, size_t *actual,
loff_t lim, u_char *buffer) loff_t lim, u_char *buffer)

1
include/mtd_blk.h
View File

@ -15,5 +15,6 @@ char *mtd_part_parse(void);
int mtd_blk_map_table_init(struct blk_desc *desc, int mtd_blk_map_table_init(struct blk_desc *desc,
loff_t offset, loff_t offset,
size_t length); size_t length);
void mtd_blk_map_partitions(struct blk_desc *desc);
#endif #endif