Micron MT29F1G08ABAFAWP-ITE:F supports an on-die ECC with 8 bits per 512 bytes. Add support for this combination.
Signed-off-by: Chris Packham <chris.pack...@alliedtelesis.co.nz> --- This seems deceptively easy so I've probably missed something. I have tested with running some of the ubifs stress tests from mtd-utils and things seem OK. Changes in v2: - New drivers/mtd/nand/raw/nand_micron.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c index d1e8f57544a0..2164dd112f5c 100644 --- a/drivers/mtd/nand/raw/nand_micron.c +++ b/drivers/mtd/nand/raw/nand_micron.c @@ -240,9 +240,9 @@ static int micron_supports_on_die_ecc(struct nand_chip *chip) /* * Some Micron NANDs have an on-die ECC of 4/512, some other - * 8/512. We only support the former. + * 8/512. */ - if (chip->ecc_strength_ds != 4) + if (chip->ecc_strength_ds != 4 && chip->ecc_strength_ds != 8) return MICRON_ON_DIE_UNSUPPORTED; return MICRON_ON_DIE_SUPPORTED; @@ -274,9 +274,9 @@ static int micron_nand_init(struct nand_chip *chip) return -EINVAL; } - chip->ecc.bytes = 8; + chip->ecc.bytes = chip->ecc_strength_ds * 2; chip->ecc.size = 512; - chip->ecc.strength = 4; + chip->ecc.strength = chip->ecc_strength_ds; chip->ecc.algo = NAND_ECC_BCH; chip->ecc.read_page = micron_nand_read_page_on_die_ecc; chip->ecc.write_page = micron_nand_write_page_on_die_ecc; -- 2.17.1