diff options
| author | Jason Liu <r64343@freescale.com> | 2008-03-14 21:53:04 -0500 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-01-09 19:53:37 +0800 |
| commit | 07e49627892f4dc238c7f7db26e5a2dbbcf4ece4 (patch) | |
| tree | c536ec5b261ad1903ae6da900148750e10680f06 | |
| parent | 695816166dccb08b367ce7c777a42ad5adfb4e73 (diff) | |
ENGR00068619 JFFS2 community fix with not use OOB
JFFS2 community fix with not use OOB at MLC NAND, this patch
is coming from the MTD community
Signed-off-by: Jason Liu <r64343@freescale.com>
| -rw-r--r-- | fs/jffs2/fs.c | 6 | ||||
| -rw-r--r-- | fs/jffs2/os-linux.h | 2 | ||||
| -rw-r--r-- | include/mtd/mtd-abi.h | 3 |
3 files changed, 7 insertions, 4 deletions
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index 46ad619b6124..fed08c1d7945 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -692,7 +692,9 @@ void jffs2_gc_release_page(struct jffs2_sb_info *c, static int jffs2_flash_setup(struct jffs2_sb_info *c) { int ret = 0; - if (jffs2_cleanmarker_oob(c)) { + if (c->mtd->type == MTD_NANDFLASH) { + if (!(c->mtd->flags & MTD_OOB_WRITEABLE)) + printk(KERN_INFO "JFFS2 doesn't use OOB.\n"); /* NAND flash... do setup accordingly */ ret = jffs2_nand_flash_setup(c); if (ret) @@ -725,7 +727,7 @@ static int jffs2_flash_setup(struct jffs2_sb_info *c) { void jffs2_flash_cleanup(struct jffs2_sb_info *c) { - if (jffs2_cleanmarker_oob(c)) { + if (c->mtd->type == MTD_NANDFLASH) { jffs2_nand_flash_cleanup(c); } diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h index 65c6c43ca482..dce73c35bbc2 100644 --- a/fs/jffs2/os-linux.h +++ b/fs/jffs2/os-linux.h @@ -106,7 +106,7 @@ static inline void jffs2_init_inode_info(struct jffs2_inode_info *f) #define jffs2_can_mark_obsolete(c) (c->mtd->flags & (MTD_BIT_WRITEABLE)) #endif -#define jffs2_cleanmarker_oob(c) (c->mtd->type == MTD_NANDFLASH) +#define jffs2_cleanmarker_oob(c) (c->mtd->type == MTD_NANDFLASH && (c->mtd->flags & MTD_OOB_WRITEABLE)) #define jffs2_flash_write_oob(c, ofs, len, retlen, buf) ((c)->mtd->write_oob((c)->mtd, ofs, len, retlen, buf)) #define jffs2_flash_read_oob(c, ofs, len, retlen, buf) ((c)->mtd->read_oob((c)->mtd, ofs, len, retlen, buf)) diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h index 2f7d45bcbd24..e48643208062 100644 --- a/include/mtd/mtd-abi.h +++ b/include/mtd/mtd-abi.h @@ -58,12 +58,13 @@ struct mtd_oob_buf64 { #define MTD_BIT_WRITEABLE 0x800 /* Single bits can be flipped */ #define MTD_NO_ERASE 0x1000 /* No erase necessary */ #define MTD_POWERUP_LOCK 0x2000 /* Always locked after reset */ +#define MTD_OOB_WRITEABLE 0x4000 /* Use Out-Of-Band area */ // Some common devices / combinations of capabilities #define MTD_CAP_ROM 0 #define MTD_CAP_RAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE) #define MTD_CAP_NORFLASH (MTD_WRITEABLE | MTD_BIT_WRITEABLE) -#define MTD_CAP_NANDFLASH (MTD_WRITEABLE) +#define MTD_CAP_NANDFLASH (MTD_WRITEABLE | MTD_OOB_WRITEABLE) /* ECC byte placement */ #define MTD_NANDECC_OFF 0 // Switch off ECC (Not recommended) |