[PATCH v2 43/51] mtd: nand: s3c2410: switch to mtd_ooblayout_ops

Boris Brezillon
2016-02-04T10:08:22Z

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>
---
drivers/mtd/nand/s3c2410.c | 32 +++++++++++++++++++++++++++-----
1 file changed, 27 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index 9c9397b..efa339b 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -84,11 +84,33 @@

/* new oob placement block for use with hardware ecc generation
*/
+static int s3c2410_ooblayout_ecc(struct mtd_info *mtd, int section,
+ struct mtd_oov_region *oobregion)
+{
+ if (section)
+ return -ERANGE;
+
+ oobregion->offset = 0;
+ oobregion->length = 3;
+
+ return 0;
+}
+
+static int s3c2410_ooblayout_free(struct mtd_info *mtd, int section,
+ struct mtd_oov_region *oobregion)
+{
+ if (section)
+ return -ERANGE;
+
+ oobregion->offset = 8;
+ oobregion->length = 8;
+
+ return 0;
+}

-static struct nand_ecclayout nand_hw_eccoob = {
- .eccbytes = 3,
- .eccpos = {0, 1, 2},
- .oobfree = {{8, 8}}
+const struct mtd_ooblayout_ops s3c2410_ooblayout_ops = {
+ .eccpos = s3c2410_eccpos,
+ .oobfree = s3c2410_oobfree,
};

/* controller and mtd information */
@@ -919,7 +941,7 @@ static void s3c2410_nand_update_chip(struct s3c2410_nand_info *info,
} else {
chip->ecc.size = 512;
chip->ecc.bytes = 3;
- chip->ecc.layout = &nand_hw_eccoob;
+ mtd_set_ooblayout(nand_to_mtd(chip), &s3c2410_ooblayout_ops);
}
}

--
2.1.4