diff options
| author | Gupta, Pekon <pekon@ti.com> | 2013-03-15 17:55:53 +0530 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2013-04-05 13:22:59 +0100 |
| commit | 837a6ba4f3b6d23026674e6af6b6849a4634fff9 (patch) | |
| tree | c13590363e4e146627a0074b2c7efa60386c5a18 /drivers/mtd/nand/cafe_nand.c | |
| parent | 4ff6772b5bb17ef40e64abf2c0d5f6aefd104b06 (diff) | |
| download | op-kernel-dev-837a6ba4f3b6d23026674e6af6b6849a4634fff9.zip op-kernel-dev-837a6ba4f3b6d23026674e6af6b6849a4634fff9.tar.gz | |
mtd: nand: subpage write support for hardware based ECC schemes
This patch adds support for subpage (partial-page) writes when using
hardware based ECC schemes.
Advantages:
(1) reduces storage overhead when using file-systems like UBIFS, which
store LEB header at page-size granularity.
(2) allows independent subpage writes, thereby increasing NAND storage
efficiency for non-page aligned data.
+ updated cafe_nand and lpc32xx_mlc NAND drivers for change in
chip->write_page interface.
Signed-off-by: Gupta, Pekon <pekon@ti.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/nand/cafe_nand.c')
| -rw-r--r-- | drivers/mtd/nand/cafe_nand.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index a01ccb9..c34985a5 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -530,8 +530,8 @@ static int cafe_nand_write_page_lowlevel(struct mtd_info *mtd, } static int cafe_nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, - const uint8_t *buf, int oob_required, int page, - int cached, int raw) + uint32_t offset, int data_len, const uint8_t *buf, + int oob_required, int page, int cached, int raw) { int status; |
