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authorBoris Brezillon <boris.brezillon@free-electrons.com>2016-02-03 20:12:19 +0100
committerBoris Brezillon <boris.brezillon@free-electrons.com>2016-04-19 22:05:51 +0200
commit8cfc1e8b68f3e0b144f17a94709c757c6db05b82 (patch)
treec1f953e34173b0493cbdaf3564b1a907bef6d4bd
parentb9c0f65feab8a6dd4f37fdd8150cf5fe716304f5 (diff)
mtd: nand: omap2: use mtd_ooblayout_xxx() helpers where appropriate
The mtd_ooblayout_xxx() helper functions have been added to avoid direct accesses to the ecclayout field, and thus ease for future reworks. Use these helpers in all places where the oobfree[] and eccpos[] arrays where directly accessed. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
-rw-r--r--drivers/mtd/nand/omap2.c25
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index c59bc85..38fe6b8 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1498,9 +1498,8 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
static int omap_write_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required, int page)
{
- int i;
+ int ret;
uint8_t *ecc_calc = chip->buffers->ecccalc;
- uint32_t *eccpos = chip->ecc.layout->eccpos;
/* Enable GPMC ecc engine */
chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
@@ -1511,8 +1510,10 @@ static int omap_write_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
/* Update ecc vector from GPMC result registers */
chip->ecc.calculate(mtd, buf, &ecc_calc[0]);
- for (i = 0; i < chip->ecc.total; i++)
- chip->oob_poi[eccpos[i]] = ecc_calc[i];
+ ret = mtd_ooblayout_set_eccbytes(mtd, ecc_calc, chip->oob_poi, 0,
+ chip->ecc.total);
+ if (ret)
+ return ret;
/* Write ecc vector to OOB area */
chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
@@ -1539,10 +1540,7 @@ static int omap_read_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
{
uint8_t *ecc_calc = chip->buffers->ecccalc;
uint8_t *ecc_code = chip->buffers->ecccode;
- uint32_t *eccpos = chip->ecc.layout->eccpos;
- uint8_t *oob = &chip->oob_poi[eccpos[0]];
- uint32_t oob_pos = mtd->writesize + chip->ecc.layout->eccpos[0];
- int stat;
+ int stat, ret;
unsigned int max_bitflips = 0;
/* Enable GPMC ecc engine */
@@ -1552,13 +1550,18 @@ static int omap_read_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
chip->read_buf(mtd, buf, mtd->writesize);
/* Read oob bytes */
- chip->cmdfunc(mtd, NAND_CMD_RNDOUT, oob_pos, -1);
- chip->read_buf(mtd, oob, chip->ecc.total);
+ chip->cmdfunc(mtd, NAND_CMD_RNDOUT,
+ mtd->writesize + BADBLOCK_MARKER_LENGTH, -1);
+ chip->read_buf(mtd, chip->oob_poi + BADBLOCK_MARKER_LENGTH,
+ chip->ecc.total);
/* Calculate ecc bytes */
chip->ecc.calculate(mtd, buf, ecc_calc);
- memcpy(ecc_code, &chip->oob_poi[eccpos[0]], chip->ecc.total);
+ ret = mtd_ooblayout_get_eccbytes(mtd, ecc_code, chip->oob_poi, 0,
+ chip->ecc.total);
+ if (ret)
+ return ret;
stat = chip->ecc.correct(mtd, buf, ecc_code, ecc_calc);