diff options
| author | Maxim Levitsky | 2010-02-22 19:39:40 +0100 |
|---|---|---|
| committer | David Woodhouse | 2010-02-26 19:44:57 +0100 |
| commit | 93edbad69b0491d794c2ec86bcc65c69eac676e3 (patch) | |
| tree | e3bd7b55c549f0373bfc9e3f1082458b9cd10fa2 /drivers/mtd/nand/nand_base.c | |
| parent | mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident() (diff) | |
| download | kernel-qcow2-linux-93edbad69b0491d794c2ec86bcc65c69eac676e3.tar.gz kernel-qcow2-linux-93edbad69b0491d794c2ec86bcc65c69eac676e3.tar.xz kernel-qcow2-linux-93edbad69b0491d794c2ec86bcc65c69eac676e3.zip | |
mtd: Workaround wrong write protect status on some xD cards
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/nand/nand_base.c')
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 1c4823696be2..b9dc65c7253c 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -434,6 +434,11 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) static int nand_check_wp(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; + + /* broken xD cards report WP despite being writable */ + if (chip->options & NAND_BROKEN_XD) + return 0; + /* Check the WP bit */ chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1); return (chip->read_byte(mtd) & NAND_STATUS_WP) ? 0 : 1; @@ -3175,7 +3180,8 @@ int nand_scan_tail(struct mtd_info *mtd) /* Fill in remaining MTD driver data */ mtd->type = MTD_NANDFLASH; - mtd->flags = MTD_CAP_NANDFLASH; + mtd->flags = (chip->options & NAND_ROM) ? MTD_CAP_ROM : + MTD_CAP_NANDFLASH; mtd->erase = nand_erase; mtd->point = NULL; mtd->unpoint = NULL; |