diff options
Diffstat (limited to 'drivers/mtd/nand/nand_samsung.c')
| -rw-r--r-- | drivers/mtd/nand/nand_samsung.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/mtd/nand/nand_samsung.c b/drivers/mtd/nand/nand_samsung.c index f6b0a63a068c..ef022f62f74c 100644 --- a/drivers/mtd/nand/nand_samsung.c +++ b/drivers/mtd/nand/nand_samsung.c @@ -92,10 +92,23 @@ 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; + if (nand_is_slc(chip)) { + switch (chip->id.data[1]) { + /* K9F4G08U0D-S[I|C]B0(T00) */ + case 0xDC: + chip->ecc_step_ds = 512; + chip->ecc_strength_ds = 1; + break; + + /* K9F1G08U0E 21nm chips do not support subpage write */ + case 0xF1: + if (chip->id.len > 4 && + (chip->id.data[4] & GENMASK(1, 0)) == 0x1) + chip->options |= NAND_NO_SUBPAGE_WRITE; + break; + default: + break; + } } } } |