FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-29 04:45:05 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

mtd: nand: fix the wrong mtd->type for nand chip

Browse Source 
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>
This commit is contained in:
Huang Shijie 2013-09-25 14:58:21 +08:00 committed by Brian Norris
parent e104f1e9da
commit 963d1c285f
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mtd/nand/nand_base.c
View File

@ -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;