diff options
Diffstat (limited to 'drivers/mtd/nand/nand_micron.c')
| -rw-r--r-- | drivers/mtd/nand/nand_micron.c | 77 |
1 files changed, 51 insertions, 26 deletions
diff --git a/drivers/mtd/nand/nand_micron.c b/drivers/mtd/nand/nand_micron.c index abf6a3c376e8..bf2dc23e1c32 100644 --- a/drivers/mtd/nand/nand_micron.c +++ b/drivers/mtd/nand/nand_micron.c @@ -117,16 +117,28 @@ micron_nand_read_page_on_die_ecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - int status; - int max_bitflips = 0; + u8 status; + int ret, max_bitflips = 0; - micron_nand_on_die_ecc_setup(chip, true); + ret = micron_nand_on_die_ecc_setup(chip, true); + if (ret) + return ret; + + ret = nand_read_page_op(chip, page, 0, NULL, 0); + if (ret) + goto out; + + ret = nand_status_op(chip, &status); + if (ret) + goto out; + + ret = nand_exit_status_op(chip); + if (ret) + goto out; - chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page); - chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1); - status = chip->read_byte(mtd); if (status & NAND_STATUS_FAIL) mtd->ecc_stats.failed++; + /* * The internal ECC doesn't tell us the number of bitflips * that have been corrected, but tells us if it recommends to @@ -137,13 +149,12 @@ micron_nand_read_page_on_die_ecc(struct mtd_info *mtd, struct nand_chip *chip, else if (status & NAND_STATUS_WRITE_RECOMMENDED) max_bitflips = chip->ecc.strength; - chip->cmdfunc(mtd, NAND_CMD_READ0, -1, -1); - - nand_read_page_raw(mtd, chip, buf, oob_required, page); + ret = nand_read_page_raw(mtd, chip, buf, oob_required, page); +out: micron_nand_on_die_ecc_setup(chip, false); - return max_bitflips; + return ret ? ret : max_bitflips; } static int @@ -151,18 +162,26 @@ micron_nand_write_page_on_die_ecc(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf, int oob_required, int page) { - int status; + int ret; - micron_nand_on_die_ecc_setup(chip, true); + ret = micron_nand_on_die_ecc_setup(chip, true); + if (ret) + return ret; - chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page); - nand_write_page_raw(mtd, chip, buf, oob_required, page); - chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1); - status = chip->waitfunc(mtd, chip); + ret = nand_prog_page_begin_op(chip, page, 0, NULL, 0); + if (ret) + goto out; + ret = nand_write_page_raw(mtd, chip, buf, oob_required, page); + if (ret) + return ret; + + ret = nand_prog_page_end_op(chip); + +out: micron_nand_on_die_ecc_setup(chip, false); - return status & NAND_STATUS_FAIL ? -EIO : 0; + return ret; } static int @@ -171,10 +190,13 @@ micron_nand_read_page_raw_on_die_ecc(struct mtd_info *mtd, uint8_t *buf, int oob_required, int page) { - chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page); - nand_read_page_raw(mtd, chip, buf, oob_required, page); + int ret; - return 0; + ret = nand_read_page_op(chip, page, 0, NULL, 0); + if (ret) + return ret; + + return nand_read_page_raw(mtd, chip, buf, oob_required, page); } static int @@ -183,14 +205,17 @@ micron_nand_write_page_raw_on_die_ecc(struct mtd_info *mtd, const uint8_t *buf, int oob_required, int page) { - int status; + int ret; - chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page); - nand_write_page_raw(mtd, chip, buf, oob_required, page); - chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1); - status = chip->waitfunc(mtd, chip); + ret = nand_prog_page_begin_op(chip, page, 0, NULL, 0); + if (ret) + return ret; + + ret = nand_write_page_raw(mtd, chip, buf, oob_required, page); + if (ret) + return ret; - return status & NAND_STATUS_FAIL ? -EIO : 0; + return nand_prog_page_end_op(chip); } enum { |