diff options
| author | Mikhail Kshevetskiy <[email protected]> | 2020-06-22 16:16:34 +0300 |
|---|---|---|
| committer | Jagan Teki <[email protected]> | 2020-12-18 16:16:36 +0530 |
| commit | 25f068aa3e8aebda96a1a908a0bebd56f59374ca (patch) | |
| tree | 6e9c7cee041d6e9c454ec46b145ad68a9425e724 | |
| parent | 031b89e51b0fde5aabc258c2eb9c3f913f375f65 (diff) | |
mtd: spinand: enable erasing of bad mtd blocks
U-Boot is able to erase bad mtd blocks on raw nand devices, but this
is not true for spinand flashes. Lets enable this feature for spinand
flashes as well. This is extemelly useful for flash testing.
Signed-off-by: Mikhail Kshevetskiy <[email protected]>
| -rw-r--r-- | drivers/mtd/nand/core.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/mtd/nand/core.c b/drivers/mtd/nand/core.c index 6fbd24ba749..219efdc8959 100644 --- a/drivers/mtd/nand/core.c +++ b/drivers/mtd/nand/core.c @@ -130,10 +130,18 @@ EXPORT_SYMBOL_GPL(nanddev_isreserved); */ int nanddev_erase(struct nand_device *nand, const struct nand_pos *pos) { + unsigned int entry; + if (nanddev_isbad(nand, pos) || nanddev_isreserved(nand, pos)) { pr_warn("attempt to erase a bad/reserved block @%llx\n", nanddev_pos_to_offs(nand, pos)); - return -EIO; + if (nanddev_isreserved(nand, pos)) + return -EIO; + + /* remove bad block from BBT */ + entry = nanddev_bbt_pos_to_entry(nand, pos); + nanddev_bbt_set_block_status(nand, entry, + NAND_BBT_BLOCK_STATUS_UNKNOWN); } return nand->ops->erase(nand, pos); |