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authorGupta, Pekon <pekon@ti.com>2013-03-15 17:55:53 +0530
committerDavid Woodhouse <David.Woodhouse@intel.com>2013-04-05 13:22:59 +0100
commit837a6ba4f3b6d23026674e6af6b6849a4634fff9 (patch)
treec13590363e4e146627a0074b2c7efa60386c5a18 /drivers/mtd/nand/cafe_nand.c
parent4ff6772b5bb17ef40e64abf2c0d5f6aefd104b06 (diff)
downloadop-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.c4
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;
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