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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-07-24 22:43:04 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-07-24 22:43:04 -0700 |
| commit | 314820c9e892d8f41ba4db300ec96770d9c8294b (patch) | |
| tree | 3d5c59a429239b180c77e57f998a78d3f2b79827 /drivers/mtd/nand/atmel_nand.c | |
| parent | e76b8ee25e034ab601b525abb95cea14aa167ed3 (diff) | |
| parent | 07b8481d4aff73d6f451f25e74ea10240ff5131e (diff) | |
Merge branch 'next' into for-linus
Diffstat (limited to 'drivers/mtd/nand/atmel_nand.c')
| -rw-r--r-- | drivers/mtd/nand/atmel_nand.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 2165576a1c6..97ac6712bb1 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -324,9 +324,10 @@ static int atmel_nand_calculate(struct mtd_info *mtd, * mtd: mtd info structure * chip: nand chip info structure * buf: buffer to store read data + * oob_required: caller expects OOB data read to chip->oob_poi */ -static int atmel_nand_read_page(struct mtd_info *mtd, - struct nand_chip *chip, uint8_t *buf, int page) +static int atmel_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip, + uint8_t *buf, int oob_required, int page) { int eccsize = chip->ecc.size; int eccbytes = chip->ecc.bytes; @@ -335,6 +336,7 @@ static int atmel_nand_read_page(struct mtd_info *mtd, uint8_t *oob = chip->oob_poi; uint8_t *ecc_pos; int stat; + unsigned int max_bitflips = 0; /* * Errata: ALE is incorrectly wired up to the ECC controller @@ -371,10 +373,12 @@ static int atmel_nand_read_page(struct mtd_info *mtd, /* check if there's an error */ stat = chip->ecc.correct(mtd, p, oob, NULL); - if (stat < 0) + if (stat < 0) { mtd->ecc_stats.failed++; - else + } else { mtd->ecc_stats.corrected += stat; + max_bitflips = max_t(unsigned int, max_bitflips, stat); + } /* get back to oob start (end of page) */ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize, -1); @@ -382,7 +386,7 @@ static int atmel_nand_read_page(struct mtd_info *mtd, /* read the oob */ chip->read_buf(mtd, oob, mtd->oobsize); - return 0; + return max_bitflips; } /* |