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mtd: nand: gpmi: add raw oob access functions 

Implement raw OOB access functions to retrieve OOB bytes when accessing the
NAND in raw mode.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Boris BREZILLON 2014-11-30 19:10:30 +01:00 committed by Brian Norris
parent da3bc42c1b
commit 7ca94e07fe
1 changed files with 18 additions and 0 deletions
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18
drivers/mtd/nand/gpmi-nand/gpmi-nand.c
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@ -1528,6 +1528,22 @@ static int gpmi_ecc_write_page_raw(struct mtd_info *mtd,
return 0;
}
static int gpmi_ecc_read_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
int page)
{
chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
return gpmi_ecc_read_page_raw(mtd, chip, NULL, 1, page);
}
static int gpmi_ecc_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
int page)
{
chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0, page);
return gpmi_ecc_write_page_raw(mtd, chip, NULL, 1);
}
static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
struct nand_chip *chip = mtd->priv;
@ -1847,6 +1863,8 @@ static int gpmi_init_last(struct gpmi_nand_data *this)
ecc->write_oob = gpmi_ecc_write_oob;
ecc->read_page_raw = gpmi_ecc_read_page_raw;
ecc->write_page_raw = gpmi_ecc_write_page_raw;
ecc->read_oob_raw = gpmi_ecc_read_oob_raw;
ecc->write_oob_raw = gpmi_ecc_write_oob_raw;
ecc->mode = NAND_ECC_HW;
ecc->size = bch_geo->ecc_chunk_size;
ecc->strength = bch_geo->ecc_strength;