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authorKyungmin Park <kyungmin.park@samsung.com>2010-08-26 22:55:44 -0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-09-13 03:49:18 -0400
commit9aba97ad004ed0cde9747a9daf5b1484edb746cd (patch)
treec44f1861042f9c69979713280eb775300d70ce92 /drivers/mtd/onenand/samsung.c
parent8b865d5efd9205b131dd9a43a6f450c05d38aaa1 (diff)
mtd: OneNAND: Fix 2KiB pagesize handling at Samsung SoCs
Wrong assumption bufferram can be switched between BufferRAM0 and BufferRAM1 Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/onenand/samsung.c')
-rw-r--r--drivers/mtd/onenand/samsung.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index cb443af3d45f..094dfcbe2347 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -571,13 +571,12 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
571 unsigned char *buffer, int offset, size_t count) 571 unsigned char *buffer, int offset, size_t count)
572{ 572{
573 struct onenand_chip *this = mtd->priv; 573 struct onenand_chip *this = mtd->priv;
574 void __iomem *bufferram;
575 void __iomem *p; 574 void __iomem *p;
576 void *buf = (void *) buffer; 575 void *buf = (void *) buffer;
577 dma_addr_t dma_src, dma_dst; 576 dma_addr_t dma_src, dma_dst;
578 int err; 577 int err;
579 578
580 p = bufferram = this->base + area; 579 p = this->base + area;
581 if (ONENAND_CURRENT_BUFFERRAM(this)) { 580 if (ONENAND_CURRENT_BUFFERRAM(this)) {
582 if (area == ONENAND_DATARAM) 581 if (area == ONENAND_DATARAM)
583 p += this->writesize; 582 p += this->writesize;
@@ -621,7 +620,7 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
621normal: 620normal:
622 if (count != mtd->writesize) { 621 if (count != mtd->writesize) {
623 /* Copy the bufferram to memory to prevent unaligned access */ 622 /* Copy the bufferram to memory to prevent unaligned access */
624 memcpy(this->page_buf, bufferram, mtd->writesize); 623 memcpy(this->page_buf, p, mtd->writesize);
625 p = this->page_buf + offset; 624 p = this->page_buf + offset;
626 } 625 }
627 626