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| author | Boris Brezillon <boris.brezillon@bootlin.com> | 2018-07-18 10:42:20 +0200 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-19 23:15:04 +0200 |
| commit | ef422e1ecd272d077efce64432907632758cf2e2 (patch) | |
| tree | cccfe0f885d56d56252d442f5216004333c23318 /drivers/mtd/nand/raw/nand_micron.c | |
| parent | 2301780711efc514a8bb183e853bda8decce746a (diff) | |
| download | linux-ef422e1ecd272d077efce64432907632758cf2e2.tar.bz2 | |
mtd: rawnand: micron: Avoid enabling/disabling ECC when it can't be disabled
Some chips have their on-die ECC forcibly enabled, there's no point in
trying to enable/disable the ECC engine in that case.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
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 | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c index 2cff25f7b48b..9d13b701e581 100644 --- a/drivers/mtd/nand/raw/nand_micron.c +++ b/drivers/mtd/nand/raw/nand_micron.c @@ -65,6 +65,7 @@ struct nand_onfi_vendor_micron { } __packed; struct micron_on_die_ecc { + bool forced; void *rawbuf; }; @@ -171,8 +172,12 @@ static const struct mtd_ooblayout_ops micron_nand_on_die_8_ooblayout_ops = { static int micron_nand_on_die_ecc_setup(struct nand_chip *chip, bool enable) { + struct micron_nand *micron = nand_get_manufacturer_data(chip); u8 feature[ONFI_SUBFEATURE_PARAM_LEN] = { 0, }; + if (micron->ecc.forced) + return 0; + if (enable) feature[0] |= ONFI_FEATURE_ON_DIE_ECC_EN; @@ -452,6 +457,9 @@ static int micron_nand_init(struct nand_chip *chip) goto err_free_manuf_data; } + if (ondie == MICRON_ON_DIE_MANDATORY) + micron->ecc.forced = true; + /* * In case of 4bit on-die ECC, we need a buffer to store a * page dumped in raw mode so that we can compare its content |