diff options
Diffstat (limited to 'drivers/mtd/nand/raw/nand_hynix.c')
| -rw-r--r-- | drivers/mtd/nand/raw/nand_hynix.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/nand_hynix.c b/drivers/mtd/nand/raw/nand_hynix.c index d542908a0ebb..4ffbb26e76d6 100644 --- a/drivers/mtd/nand/raw/nand_hynix.c +++ b/drivers/mtd/nand/raw/nand_hynix.c @@ -100,6 +100,16 @@ static int hynix_nand_reg_write_op(struct nand_chip *chip, u8 addr, u8 val) struct mtd_info *mtd = nand_to_mtd(chip); u16 column = ((u16)addr << 8) | addr; + if (chip->exec_op) { + struct nand_op_instr instrs[] = { + NAND_OP_ADDR(1, &addr, 0), + NAND_OP_8BIT_DATA_OUT(1, &val, 0), + }; + struct nand_operation op = NAND_OPERATION(instrs); + + return nand_exec_op(chip, &op); + } + chip->cmdfunc(mtd, NAND_CMD_NONE, column, -1); chip->write_byte(mtd, val); @@ -473,6 +483,19 @@ static void hynix_nand_extract_oobsize(struct nand_chip *chip, WARN(1, "Invalid OOB size"); break; } + + /* + * The datasheet of H27UCG8T2BTR mentions that the "Redundant + * Area Size" is encoded "per 8KB" (page size). This chip uses + * a page size of 16KiB. The datasheet mentions an OOB size of + * 1.280 bytes, but the OOB size encoded in the ID bytes (using + * the existing logic above) is 640 bytes. + * Update the OOB size for this chip by taking the value + * determined above and scaling it to the actual page size (so + * the actual OOB size for this chip is: 640 * 16k / 8k). + */ + if (chip->id.data[1] == 0xde) + mtd->oobsize *= mtd->writesize / SZ_8K; } } |