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authorBoris Brezillon <boris.brezillon@free-electrons.com>2016-02-03 20:02:22 +0100
committerBoris Brezillon <boris.brezillon@free-electrons.com>2016-05-05 23:51:44 +0200
commit36886be7dd3b48f593d9da21c631d06d5bfae55d (patch)
treed9bfc85080463c3a27ebbb54bd4d03e28edc9590
parent2ca9ec9acd3bea9f3160e0e0975c06914da3ae4e (diff)
mtd: nand: jz4780: 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> Tested-by: Harvey Hunt <harvey.hunt@imgtec.com>
-rw-r--r--drivers/mtd/nand/jz4780_nand.c19
1 files changed, 5 insertions, 14 deletions
diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c
index 23a1999..10f249a 100644
--- a/drivers/mtd/nand/jz4780_nand.c
+++ b/drivers/mtd/nand/jz4780_nand.c
@@ -55,8 +55,6 @@ struct jz4780_nand_chip {
struct nand_chip chip;
struct list_head chip_list;
- struct nand_ecclayout ecclayout;
-
struct gpio_desc *busy_gpio;
struct gpio_desc *wp_gpio;
unsigned int reading: 1;
@@ -164,8 +162,7 @@ static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *de
struct nand_chip *chip = &nand->chip;
struct mtd_info *mtd = nand_to_mtd(chip);
struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(chip->controller);
- struct nand_ecclayout *layout = &nand->ecclayout;
- u32 start, i;
+ int eccbytes;
chip->ecc.bytes = fls((1 + 8) * chip->ecc.size) *
(chip->ecc.strength / 8);
@@ -200,23 +197,17 @@ static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *de
return 0;
/* Generate ECC layout. ECC codes are right aligned in the OOB area. */
- layout->eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes;
+ eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes;
- if (layout->eccbytes > mtd->oobsize - 2) {
+ if (eccbytes > mtd->oobsize - 2) {
dev_err(dev,
"invalid ECC config: required %d ECC bytes, but only %d are available",
- layout->eccbytes, mtd->oobsize - 2);
+ eccbytes, mtd->oobsize - 2);
return -EINVAL;
}
- start = mtd->oobsize - layout->eccbytes;
- for (i = 0; i < layout->eccbytes; i++)
- layout->eccpos[i] = start + i;
-
- layout->oobfree[0].offset = 2;
- layout->oobfree[0].length = mtd->oobsize - layout->eccbytes - 2;
+ mtd->ooblayout = &nand_ooblayout_lp_ops;
- chip->ecc.layout = layout;
return 0;
}