Messages in this thread Patch in this message | | | From | Schrempf Frieder <> | Subject | [PATCH v6 7/7] mtd: rawnand: AMD: Also use the last page for bad block markers | Date | Wed, 17 Apr 2019 12:36:37 +0000 |
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From: Frieder Schrempf <frieder.schrempf@kontron.de>
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> --- drivers/mtd/nand/raw/nand_amd.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/nand_amd.c b/drivers/mtd/nand/raw/nand_amd.c index 1417559d3057..6217555c19a6 100644 --- a/drivers/mtd/nand/raw/nand_amd.c +++ b/drivers/mtd/nand/raw/nand_amd.c @@ -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; } -- 2.17.1
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