diff options
| author |   Chris Packham <chris.packham@alliedtelesis.co.nz> | 2018-07-18 10:42:18 +0200 |
|---|---|---|
| committer |   Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-19 23:15:03 +0200 |
| commit | cb2bf403a462082a253fe0a94cfec020285ffbd8 (patch) | |
| tree | cf9419059b0b9df4de2fd9ecd600460910480d76 /drivers/mtd/nand/raw/nand_micron.c | |
| parent | mtd: rawnand: Expose _notsupp() helpers for raw page accessors (diff) | |
| download | linux-dev-cb2bf403a462082a253fe0a94cfec020285ffbd8.tar.xz linux-dev-cb2bf403a462082a253fe0a94cfec020285ffbd8.zip | |
mtd: rawnand: micron: allow forced on-die ECC
Some Micron NAND chips have on-die ECC forceably enabled. Allow such
chips to be used as long as the controller has set chip->ecc.mode to
NAND_ECC_ON_DIE.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Diffstat (limited to 'drivers/mtd/nand/raw/nand_micron.c')
| -rw-r--r-- | drivers/mtd/nand/raw/nand_micron.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c index f8839c7f7464..fd3f68e0909f 100644 --- a/drivers/mtd/nand/raw/nand_micron.c +++ b/drivers/mtd/nand/raw/nand_micron.c @@ -374,7 +374,8 @@ static int micron_nand_init(struct nand_chip *chip) ondie = micron_supports_on_die_ecc(chip); - if (ondie == MICRON_ON_DIE_MANDATORY) { + if (ondie == MICRON_ON_DIE_MANDATORY && + chip->ecc.mode != NAND_ECC_ON_DIE) { pr_err("On-die ECC forcefully enabled, not supported\n"); return -EINVAL; } @@ -398,8 +399,14 @@ static int micron_nand_init(struct nand_chip *chip) 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; - chip->ecc.read_page_raw = nand_read_page_raw; - chip->ecc.write_page_raw = nand_write_page_raw; + + if (ondie == MICRON_ON_DIE_MANDATORY) { + chip->ecc.read_page_raw = nand_read_page_raw_notsupp; + chip->ecc.write_page_raw = nand_write_page_raw_notsupp; + } else { + chip->ecc.read_page_raw = nand_read_page_raw; + chip->ecc.write_page_raw = nand_write_page_raw; + } } return 0; |