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mtd: rawnand: AMD: Also use the last page for bad block markers 

According to the datasheet of some Cypress SLC NANDs, the bad
block markers can be in the first, second or last page of a block.
So let's check all three locations.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Frieder Schrempf 2019-04-17 12:36:37 +00:00 committed by Miquel Raynal
parent 7a1894a955
commit 598dce7068
1 changed files with 7 additions and 1 deletions
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8
drivers/mtd/nand/raw/nand_amd.c
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@ -45,7 +45,13 @@ static void amd_nand_decode_id(struct nand_chip *chip)
static int amd_nand_init(struct nand_chip *chip)
{
if (nand_is_slc(chip))
chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
/*
* According to the datasheet of some Cypress SLC NANDs,
* the bad block markers can be in the first, second or last
* page of a block. So let's check all three locations.
*/
chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE |
NAND_BBM_LASTPAGE;
return 0;
}