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path: root/drivers/mtd/onenand/samsung.c
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Diffstat (limited to 'drivers/mtd/onenand/samsung.c')
-rw-r--r--drivers/mtd/onenand/samsung.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index cb443af3d45f..a460f1b748c2 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -554,14 +554,13 @@ static int s5pc110_dma_ops(void *dst, void *src, size_t count, int direction)
554 554
555 do { 555 do {
556 status = readl(base + S5PC110_DMA_TRANS_STATUS); 556 status = readl(base + S5PC110_DMA_TRANS_STATUS);
557 if (status & S5PC110_DMA_TRANS_STATUS_TE) {
558 writel(S5PC110_DMA_TRANS_CMD_TEC,
559 base + S5PC110_DMA_TRANS_CMD);
560 return -EIO;
561 }
557 } while (!(status & S5PC110_DMA_TRANS_STATUS_TD)); 562 } while (!(status & S5PC110_DMA_TRANS_STATUS_TD));
558 563
559 if (status & S5PC110_DMA_TRANS_STATUS_TE) {
560 writel(S5PC110_DMA_TRANS_CMD_TEC, base + S5PC110_DMA_TRANS_CMD);
561 writel(S5PC110_DMA_TRANS_CMD_TDC, base + S5PC110_DMA_TRANS_CMD);
562 return -EIO;
563 }
564
565 writel(S5PC110_DMA_TRANS_CMD_TDC, base + S5PC110_DMA_TRANS_CMD); 564 writel(S5PC110_DMA_TRANS_CMD_TDC, base + S5PC110_DMA_TRANS_CMD);
566 565
567 return 0; 566 return 0;
@@ -571,13 +570,12 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
571 unsigned char *buffer, int offset, size_t count) 570 unsigned char *buffer, int offset, size_t count)
572{ 571{
573 struct onenand_chip *this = mtd->priv; 572 struct onenand_chip *this = mtd->priv;
574 void __iomem *bufferram;
575 void __iomem *p; 573 void __iomem *p;
576 void *buf = (void *) buffer; 574 void *buf = (void *) buffer;
577 dma_addr_t dma_src, dma_dst; 575 dma_addr_t dma_src, dma_dst;
578 int err; 576 int err;
579 577
580 p = bufferram = this->base + area; 578 p = this->base + area;
581 if (ONENAND_CURRENT_BUFFERRAM(this)) { 579 if (ONENAND_CURRENT_BUFFERRAM(this)) {
582 if (area == ONENAND_DATARAM) 580 if (area == ONENAND_DATARAM)
583 p += this->writesize; 581 p += this->writesize;
@@ -621,7 +619,7 @@ static int s5pc110_read_bufferram(struct mtd_info *mtd, int area,
621normal: 619normal:
622 if (count != mtd->writesize) { 620 if (count != mtd->writesize) {
623 /* Copy the bufferram to memory to prevent unaligned access */ 621 /* Copy the bufferram to memory to prevent unaligned access */
624 memcpy(this->page_buf, bufferram, mtd->writesize); 622 memcpy(this->page_buf, p, mtd->writesize);
625 p = this->page_buf + offset; 623 p = this->page_buf + offset;
626 } 624 }
627 625