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| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2016-02-03 19:59:47 +0100 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2016-05-05 23:51:39 +0200 |
| commit | a8ed6e66f3b04d804fae425023aa4e7615dadab7 (patch) | |
| tree | dcd18357d05e71bfd5aa8d72bd0ffce83b737747 /drivers/mtd/nand/cafe_nand.c | |
| parent | ef5eeea6e911540bbf51a283fe0ffb7389cbe66a (diff) | |
| download | talos-obmc-linux-a8ed6e66f3b04d804fae425023aa4e7615dadab7.tar.gz talos-obmc-linux-a8ed6e66f3b04d804fae425023aa4e7615dadab7.zip | |
mtd: nand: cafe: switch to mtd_ooblayout_ops
Implementing the mtd_ooblayout_ops interface is the new way of exposing
ECC/OOB layout to MTD users.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to 'drivers/mtd/nand/cafe_nand.c')
| -rw-r--r-- | drivers/mtd/nand/cafe_nand.c | 44 |
1 files changed, 32 insertions, 12 deletions
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index e553aff68987..0b0c93702abb 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -459,10 +459,37 @@ static int cafe_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip, return max_bitflips; } -static struct nand_ecclayout cafe_oobinfo_2048 = { - .eccbytes = 14, - .eccpos = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, - .oobfree = {{14, 50}} +static int cafe_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + struct nand_chip *chip = mtd_to_nand(mtd); + + if (section) + return -ERANGE; + + oobregion->offset = 0; + oobregion->length = chip->ecc.total; + + return 0; +} + +static int cafe_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + struct nand_chip *chip = mtd_to_nand(mtd); + + if (section) + return -ERANGE; + + oobregion->offset = chip->ecc.total; + oobregion->length = mtd->oobsize - chip->ecc.total; + + return 0; +} + +static const struct mtd_ooblayout_ops cafe_ooblayout_ops = { + .ecc = cafe_ooblayout_ecc, + .free = cafe_ooblayout_free, }; /* Ick. The BBT code really ought to be able to work this bit out @@ -494,12 +521,6 @@ static struct nand_bbt_descr cafe_bbt_mirror_descr_2048 = { .pattern = cafe_mirror_pattern_2048 }; -static struct nand_ecclayout cafe_oobinfo_512 = { - .eccbytes = 14, - .eccpos = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, - .oobfree = {{14, 2}} -}; - static struct nand_bbt_descr cafe_bbt_main_descr_512 = { .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | NAND_BBT_2BIT | NAND_BBT_VERSION, @@ -743,12 +764,11 @@ static int cafe_nand_probe(struct pci_dev *pdev, cafe->ctl2 |= 1<<29; /* 2KiB page size */ /* Set up ECC according to the type of chip we found */ + mtd_set_ooblayout(mtd, &cafe_ooblayout_ops); if (mtd->writesize == 2048) { - cafe->nand.ecc.layout = &cafe_oobinfo_2048; cafe->nand.bbt_td = &cafe_bbt_main_descr_2048; cafe->nand.bbt_md = &cafe_bbt_mirror_descr_2048; } else if (mtd->writesize == 512) { - cafe->nand.ecc.layout = &cafe_oobinfo_512; cafe->nand.bbt_td = &cafe_bbt_main_descr_512; cafe->nand.bbt_md = &cafe_bbt_mirror_descr_512; } else { |
