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authorKyungmin Park <kyungmin.park@samsung.com>2010-11-02 10:28:46 +0900
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-12-03 16:27:18 +0000
commit08b3af3092bb2c284796e4e823c5309c2d0a9bca (patch)
tree0794fc9f3f68286ca1c295f29a52c0839805f4e7 /drivers/mtd
parentdaf05ec00c6e60a2c705820e7f93cbd31c804fe3 (diff)
downloadop-kernel-dev-08b3af3092bb2c284796e4e823c5309c2d0a9bca.zip
op-kernel-dev-08b3af3092bb2c284796e4e823c5309c2d0a9bca.tar.gz
mtd: OneNAND: Fix page offset handling at 2KiB pagesize
When use the 2KiB pagesize, it should be set the correct page offset. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/onenand/samsung.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index 0de7a05..a4c74a9 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -651,7 +651,7 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
void __iomem *p;
void *buf = (void *) buffer;
dma_addr_t dma_src, dma_dst;
- int err, page_dma = 0;
+ int err, ofs, page_dma = 0;
struct device *dev = &onenand->pdev->dev;
p = this->base + area;
@@ -677,10 +677,13 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
if (!page)
goto normal;
+ /* Page offset */
+ ofs = ((size_t) buf & ~PAGE_MASK);
page_dma = 1;
+
/* DMA routine */
dma_src = onenand->phys_base + (p - this->base);
- dma_dst = dma_map_page(dev, page, 0, count, DMA_FROM_DEVICE);
+ dma_dst = dma_map_page(dev, page, ofs, count, DMA_FROM_DEVICE);
} else {
/* DMA routine */
dma_src = onenand->phys_base + (p - this->base);
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