[PATCH RESEND v2] mtd: nand_base: Use io{read, write}*_rep functions for transfer
Alexander Shiyan
shc_work at mail.ru
Thu Apr 18 12:50:41 EDT 2013
This patch replaces the usage of loops in the nand_base code with
io{read,write}{8,16}_rep calls instead.
Signed-off-by: Alexander Shiyan <shc_work at mail.ru>
---
drivers/mtd/nand/nand_base.c | 19 ++++---------------
1 file changed, 4 insertions(+), 15 deletions(-)
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 0b6daaf..d99ab3d 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -255,11 +255,9 @@ static void nand_write_byte16(struct mtd_info *mtd, uint8_t byte)
*/
static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
{
- int i;
struct nand_chip *chip = mtd->priv;
- for (i = 0; i < len; i++)
- writeb(buf[i], chip->IO_ADDR_W);
+ iowrite8_rep(chip->IO_ADDR_W, buf, len);
}
/**
@@ -272,11 +270,9 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
*/
static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
{
- int i;
struct nand_chip *chip = mtd->priv;
- for (i = 0; i < len; i++)
- buf[i] = readb(chip->IO_ADDR_R);
+ ioread8_rep(chip->IO_ADDR_R, buf, len);
}
/**
@@ -289,14 +285,10 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
*/
static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
{
- int i;
struct nand_chip *chip = mtd->priv;
u16 *p = (u16 *) buf;
- len >>= 1;
-
- for (i = 0; i < len; i++)
- writew(p[i], chip->IO_ADDR_W);
+ iowrite16_rep(chip->IO_ADDR_W, p, len >> 1);
}
/**
@@ -309,13 +301,10 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
*/
static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
{
- int i;
struct nand_chip *chip = mtd->priv;
u16 *p = (u16 *) buf;
- len >>= 1;
- for (i = 0; i < len; i++)
- p[i] = readw(chip->IO_ADDR_R);
+ ioread16_rep(chip->IO_ADDR_R, p, len >> 1);
}
/**
--
1.8.1.5
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