@@ -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);
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 at oktetlabs.ru> --- drivers/mtd/nand/core.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)