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mtd: nand: lpc32xx: switch to mtd_ooblayout_ops

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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>
This commit is contained in:
Boris Brezillon
2016-02-03 20:02:41 +01:00
parent 36886be7dd
commit d50b523986
2 changed files with 66 additions and 25 deletions
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41
drivers/mtd/nand/lpc32xx_slc.c
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@@ -146,13 +146,38 @@
* NAND ECC Layout for small page NAND devices
* Note: For large and huge page devices, the default layouts are used
*/
static struct nand_ecclayout lpc32xx_nand_oob_16 = {
.eccbytes = 6,
.eccpos = {10, 11, 12, 13, 14, 15},
.oobfree = {
{ .offset = 0, .length = 4 },
{ .offset = 6, .length = 4 },
},
static int lpc32xx_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
if (section)
return -ERANGE;
oobregion->length = 6;
oobregion->offset = 10;
return 0;
}
static int lpc32xx_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
if (section > 1)
return -ERANGE;
if (!section) {
oobregion->offset = 0;
oobregion->length = 4;
} else {
oobregion->offset = 6;
oobregion->length = 4;
}
return 0;
}
static const struct mtd_ooblayout_ops lpc32xx_ooblayout_ops = {
.ecc = lpc32xx_ooblayout_ecc,
.free = lpc32xx_ooblayout_free,
};
static u8 bbt_pattern[] = {'B', 'b', 't', '0' };
@@ -886,7 +911,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
* custom BBT marker layout.
*/
if (mtd->writesize <= 512)
chip->ecc.layout = &lpc32xx_nand_oob_16;
mtd_set_ooblayout(mtd, &lpc32xx_ooblayout_ops);
/* These sizes remain the same regardless of page size */
chip->ecc.size = 256;