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mtd: nand: samsung: add ECC requirements for K9F4G08U0D

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Samsung NAND chip K9F4G08U0D minimum ECC strength requirement is 1 bit
per 512 bytes. As the chip is not ONFI nor JEDEC and because of the lack
of these values, boards using it fail to probe the NAND controller
driver. Fix this by setting up the default values.

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Miquel Raynal 2017-12-07 10:33:58 +01:00 committed by Boris Brezillon
parent aeb93af96d
commit 707d81545d
1 changed files with 6 additions and 0 deletions
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6
drivers/mtd/nand/nand_samsung.c
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@ -91,6 +91,12 @@ static void samsung_nand_decode_id(struct nand_chip *chip)
}
} else {
nand_decode_ext_id(chip);
/* Datasheet values for SLC Samsung K9F4G08U0D-S[I|C]B0(T00) */
if (nand_is_slc(chip) && chip->id.data[1] == 0xDC) {
chip->ecc_step_ds = 512;
chip->ecc_strength_ds = 1;
}
}
}