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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>
This commit is contained in:
Miquel Raynal 2018-03-19 14:47:29 +01:00 committed by Boris Brezillon
parent 789157e41a
commit 34c5c01e0c
1 changed files with 13 additions and 0 deletions
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13
drivers/mtd/nand/raw/nand_macronix.c
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@ -22,6 +22,19 @@ static int macronix_nand_init(struct nand_chip *chip)
if (nand_is_slc(chip)) if (nand_is_slc(chip))
chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; 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; return 0;
} }