diff options
| author | Roman Tereshonkov <roman.tereshonkov@nokia.com> | 2010-12-02 13:28:38 (GMT) |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-12-03 16:36:07 (GMT) |
| commit | 01039e4e63a8ea0d66fcfc71d7b99769bbbed9d6 (patch) | |
| tree | d156cc0d0f5475c4176293530aa6b2a738fabb0b /drivers/mtd/onenand/onenand_bbt.c | |
| parent | 8a8f632d8534d0c403831341450bd8db9e842f05 (diff) | |
| download | linux-01039e4e63a8ea0d66fcfc71d7b99769bbbed9d6.tar.xz | |
mtd: onenand: bugfix for 2x mode bad block handling
This bug becomes visible in 2x mode when chip->writesize
is different from mtd->writesize (= 2 * chip->writesize).
At this case the bad block information is read from
the first and the third physical pages instead of
the first and the second as specification states.
Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/onenand/onenand_bbt.c')
| -rw-r--r-- | drivers/mtd/onenand/onenand_bbt.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c index 01ab5b3..905209b 100644 --- a/drivers/mtd/onenand/onenand_bbt.c +++ b/drivers/mtd/onenand/onenand_bbt.c @@ -91,13 +91,15 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr for (j = 0; j < len; j++) { /* No need to read pages fully, * just read required OOB bytes */ - ret = onenand_bbt_read_oob(mtd, from + j * mtd->writesize + bd->offs, &ops); + ret = onenand_bbt_read_oob(mtd, + from + j * this->writesize + bd->offs, &ops); /* If it is a initial bad block, just ignore it */ if (ret == ONENAND_BBT_READ_FATAL_ERROR) return -EIO; - if (ret || check_short_pattern(&buf[j * scanlen], scanlen, mtd->writesize, bd)) { + if (ret || check_short_pattern(&buf[j * scanlen], + scanlen, this->writesize, bd)) { bbm->bbt[i >> 3] |= 0x03 << (i & 0x6); printk(KERN_WARNING "Bad eraseblock %d at 0x%08x\n", i >> 1, (unsigned int) from); |