[PATCH 3/3] mtd: nand_base: Use readsb/readsw/writesb/writesw if possible

[Alexander Shiyan]

This patch provide using readsb/readsw/writesb/writesw functions
if it possible for particular platform.

Signed-off-by: Alexander Shiyan <shc_work at mail.ru>
---
 drivers/mtd/nand/nand_base.c |   29 ++++++++++++++++++++++++-----
 1 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 382b857..4efde01 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -214,11 +214,16 @@ 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;
 
+#ifndef writesb
+	int i;
+
 	for (i = 0; i < len; i++)
 		writeb(buf[i], chip->IO_ADDR_W);
+#else
+	writesb(chip->IO_ADDR_W, buf, len);
+#endif
 }
 
 /**
@@ -231,11 +236,16 @@ 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;
 
+#ifndef readsb
+	int i;
+
 	for (i = 0; i < len; i++)
 		buf[i] = readb(chip->IO_ADDR_R);
+#else
+	readsb(chip->IO_ADDR_R, buf, len);
+#endif
 }
 
 /**
@@ -248,14 +258,18 @@ 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;
 
+#ifndef writesw
+	int i;
+
 	for (i = 0; i < len; i++)
 		writew(p[i], chip->IO_ADDR_W);
-
+#else
+	writesw(chip->IO_ADDR_W, p, len);
+#endif
 }
 
 /**
@@ -268,13 +282,18 @@ 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;
 
+#ifndef readsw
+	int i;
+
 	for (i = 0; i < len; i++)
 		p[i] = readw(chip->IO_ADDR_R);
+#else
+	readsw(chip->IO_ADDR_R, p, len);
+#endif
 }
 
 /**
-- 
1.7.3.4