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

It is known that some ESMT SLC NANDs have been shipped
with the factory bad block markers in the first or last page
of the block, instead of the first or second page. To be on
the safe side, 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 f90da7818b
commit 7a1894a955
1 changed files with 8 additions and 1 deletions
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9
drivers/mtd/nand/raw/nand_esmt.c
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@ -36,7 +36,14 @@ static void esmt_nand_decode_id(struct nand_chip *chip)
static int esmt_nand_init(struct nand_chip *chip)
{
if (nand_is_slc(chip))
chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
/*
* It is known that some ESMT SLC NANDs have been shipped
* with the factory bad block markers in the first or last page
* of the block, instead of the first or second page. To be on
* the safe side, let's check all three locations.
*/
chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE |
NAND_BBM_LASTPAGE;
return 0;
}