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| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-03-19 14:47:29 +0100 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@bootlin.com> | 2018-03-20 11:59:58 +0100 |
| commit | 34c5c01e0c8c35c01e9353d0166bfc0eb19b571c (patch) | |
| tree | 4c3ba440a9db9d54d1a51c0fc45c9a729d49e5dc /drivers/mtd/nand | |
| parent | mtd: rawnand: allow vendors to declare (un)supported features (diff) | |
| download | linux-34c5c01e0c8c35c01e9353d0166bfc0eb19b571c.tar.xz linux-34c5c01e0c8c35c01e9353d0166bfc0eb19b571c.zip | |
mtd: rawnand: macronix: nack the support of changing timings for one chip
The MX30LF2G18AC chip declares in its parameter page supporting
SET/GET_FEATURES but when it comes to timings, experience shows that it
is not the case.
Unflag this feature for this particular chip in the nand_parameters
structure to avoid unnecessary errors and downturns.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/raw/nand_macronix.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/nand_macronix.c b/drivers/mtd/nand/raw/nand_macronix.c index d290ff2a6d2f..7ed1f87e742a 100644 --- a/drivers/mtd/nand/raw/nand_macronix.c +++ b/drivers/mtd/nand/raw/nand_macronix.c @@ -22,6 +22,19 @@ static int macronix_nand_init(struct nand_chip *chip) if (nand_is_slc(chip)) chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; + /* + * MX30LF2G18AC chip does not support using SET/GET_FEATURES to change + * the timings unlike what is declared in the parameter page. Unflag + * this feature to avoid unnecessary downturns. + */ + if (chip->parameters.supports_set_get_features && + !strcmp("MX30LF2G18AC", chip->parameters.model)) { + bitmap_clear(chip->parameters.get_feature_list, + ONFI_FEATURE_ADDR_TIMING_MODE, 1); + bitmap_clear(chip->parameters.set_feature_list, + ONFI_FEATURE_ADDR_TIMING_MODE, 1); + } + return 0; } |