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Commit 76413839 authored by Alexander Shiyan's avatar Alexander Shiyan Committed by David Woodhouse
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mtd: nand_base: Use io{read, write}*_rep functions for transfer 



This patch replaces the usage of loops in the nand_base code with
io{read,write}{8,16}_rep calls instead.

Signed-off-by: default avatarAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 65c972af

drivers/mtd/nand/nand_base.c

+4 −15
Original line number Diff line number Diff line
@@ -211,11 +211,9 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr) 
 */

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);

}



/**
@@ -228,11 +226,9 @@ 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);

}



/**
@@ -245,14 +241,10 @@ 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);

}



/**
@@ -265,13 +257,10 @@ 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);

}



/**