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| author | Huang Shijie <b32955@freescale.com> | 2013-09-25 06:58:21 (GMT) |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2013-10-27 23:27:07 (GMT) |
| commit | 963d1c285fdf3b9ce93b575b879c1cba4a23d958 (patch) | |
| tree | 14424b95921931ac72baed2e4f50121ff6ab8e09 /drivers/mtd | |
| parent | e104f1e9dab6726187810f5d9e06cadb946d4a61 (diff) | |
| download | linux-fsl-qoriq-963d1c285fdf3b9ce93b575b879c1cba4a23d958.tar.xz | |
mtd: nand: fix the wrong mtd->type for nand chip
Current code sets the mtd->type with MTD_NANDFLASH for both
SLC and MLC. So the jffs2 may supports the MLC nand, but in actually,
the jffs2 should not support the MLC.
This patch uses the nand_is_slc() to check the nand cell type,
and set the mtd->type with the right nand type.
After this patch, the jffs2 only supports the SLC nand.
The side-effect of this patch:
Before this patch, the ioctl(MEMGETINFO) can only return with the
MTD_NANDFLASH; but after this patch, the ioctl(MEMGETINFO) will
return with the MTD_NANDFLASH for SLC, and MTD_MLCNANDFLASH for MLC.
So the user applictions(such as mtd-utils) should also changes a little
for this.
Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 55c80ef..8488844 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3785,7 +3785,7 @@ int nand_scan_tail(struct mtd_info *mtd) chip->options |= NAND_SUBPAGE_READ; /* Fill in remaining MTD driver data */ - mtd->type = MTD_NANDFLASH; + mtd->type = nand_is_slc(chip) ? MTD_NANDFLASH : MTD_MLCNANDFLASH; mtd->flags = (chip->options & NAND_ROM) ? MTD_CAP_ROM : MTD_CAP_NANDFLASH; mtd->_erase = nand_erase; |