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authorHuang Shijie <b32955@freescale.com>2013-09-25 14:58:21 +0800
committerBrian Norris <computersforpeace@gmail.com>2013-10-27 16:27:07 -0700
commit963d1c285fdf3b9ce93b575b879c1cba4a23d958 (patch)
tree14424b95921931ac72baed2e4f50121ff6ab8e09 /drivers/mtd
parente104f1e9dab6726187810f5d9e06cadb946d4a61 (diff)
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.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 55c80efb3081..848884473229 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;