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authorKyungmin Park <kyungmin.park@samsung.com>2010-04-28 17:46:47 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-05-14 02:50:04 +0200
commit3328dc315914aa6db486da2ceb021b6f0b36b877 (patch)
tree4fbce95b6e6469600181fad1fd6f900bf5a45766 /drivers/mtd/onenand
parentmtd: onenand: allocate verify buffer in the core (diff)
downloadlinux-3328dc315914aa6db486da2ceb021b6f0b36b877.tar.xz
linux-3328dc315914aa6db486da2ceb021b6f0b36b877.zip
mtd: onenand: add new callback for bufferram read
This patch adds a new callback for the underlying drivers, which is called instead of accessing the buffer ram directly. This callback will be used by Samsung OneNAND driver to implement DMA transfers on S5PC110 SoC. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/onenand')
-rw-r--r--drivers/mtd/onenand/onenand_base.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 045811f21497..9827ab779c08 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1635,7 +1635,6 @@ static int onenand_verify_oob(struct mtd_info *mtd, const u_char *buf, loff_t to
static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, size_t len)
{
struct onenand_chip *this = mtd->priv;
- void __iomem *dataram;
int ret = 0;
int thislen, column;
@@ -1655,10 +1654,9 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr,
onenand_update_bufferram(mtd, addr, 1);
- dataram = this->base + ONENAND_DATARAM;
- dataram += onenand_bufferram_offset(mtd, ONENAND_DATARAM);
+ this->read_bufferram(mtd, ONENAND_DATARAM, this->verify_buf, 0, mtd->writesize);
- if (memcmp(buf, dataram + column, thislen))
+ if (memcmp(buf, this->verify_buf, thislen))
return -EBADMSG;
len -= thislen;