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mtd: spinand: enable erasing of bad mtd blocks

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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 <mikhail.kshevetskiy@oktetlabs.ru>
This commit is contained in:
Mikhail Kshevetskiy 2020-06-22 16:16:34 +03:00 • committed by Jagan Teki
parent 031b89e51b
commit 25f068aa3e
1 changed files with 9 additions and 1 deletions
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10
drivers/mtd/nand/core.c
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@ -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);