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mtd: nand: docg4: 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>
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68c1b75482
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1 changed files with 28 additions and 5 deletions
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@ -222,10 +222,33 @@ struct docg4_priv {
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* Bytes 8 - 14 are hw-generated ecc covering entire page + oob bytes 0 - 14.
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* Byte 15 (the last) is used by the driver as a "page written" flag.
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*/
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static struct nand_ecclayout docg4_oobinfo = {
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.eccbytes = 9,
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.eccpos = {7, 8, 9, 10, 11, 12, 13, 14, 15},
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.oobfree = { {.offset = 2, .length = 5} }
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static int docg4_ooblayout_ecc(struct mtd_info *mtd, int section,
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struct mtd_oob_region *oobregion)
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{
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if (section)
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return -ERANGE;
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oobregion->offset = 7;
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oobregion->length = 9;
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return 0;
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}
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static int docg4_ooblayout_free(struct mtd_info *mtd, int section,
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struct mtd_oob_region *oobregion)
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{
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if (section)
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return -ERANGE;
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oobregion->offset = 2;
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oobregion->length = 5;
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return 0;
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}
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static const struct mtd_ooblayout_ops docg4_ooblayout_ops = {
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.ecc = docg4_ooblayout_ecc,
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.free = docg4_ooblayout_free,
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};
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/*
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@ -1209,6 +1232,7 @@ static void __init init_mtd_structs(struct mtd_info *mtd)
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mtd->writesize = DOCG4_PAGE_SIZE;
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mtd->erasesize = DOCG4_BLOCK_SIZE;
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mtd->oobsize = DOCG4_OOB_SIZE;
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mtd_set_ooblayout(mtd, &docg4_ooblayout_ops);
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nand->chipsize = DOCG4_CHIP_SIZE;
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nand->chip_shift = DOCG4_CHIP_SHIFT;
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nand->bbt_erase_shift = nand->phys_erase_shift = DOCG4_ERASE_SHIFT;
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@ -1217,7 +1241,6 @@ static void __init init_mtd_structs(struct mtd_info *mtd)
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nand->pagemask = 0x3ffff;
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nand->badblockpos = NAND_LARGE_BADBLOCK_POS;
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nand->badblockbits = 8;
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nand->ecc.layout = &docg4_oobinfo;
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nand->ecc.mode = NAND_ECC_HW_SYNDROME;
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nand->ecc.size = DOCG4_PAGE_SIZE;
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nand->ecc.prepad = 8;
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