diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 0477178..69e8171 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -159,16 +159,30 @@
  */
 static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip	*nand_chip = mtd->priv;
 
-	memcpy_fromio(buf, chip->IO_ADDR_R, len);
+	readsb(nand_chip->IO_ADDR_R, buf, len);
+}
+
+static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len)
+{
+	struct nand_chip	*nand_chip = mtd->priv;
+
+	readsw(nand_chip->IO_ADDR_R, buf, len / 2);
 }
 
 static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip	*nand_chip = mtd->priv;
 
-	memcpy_toio(chip->IO_ADDR_W, buf, len);
+	writesb(nand_chip->IO_ADDR_W, buf, len);
+}
+
+static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len)
+{
+	struct nand_chip	*nand_chip = mtd->priv;
+
+	writesw(nand_chip->IO_ADDR_W, buf, len / 2);
 }
 
 /*
@@ -1112,11 +1126,14 @@
 
 	nand_chip->chip_delay = 20;		/* 20us command delay time */
 
-	if (host->board->bus_width_16)		/* 16-bit bus width */
+	if (host->board->bus_width_16) {	/* 16-bit bus width */
 		nand_chip->options |= NAND_BUSWIDTH_16;
-
-	nand_chip->read_buf = atmel_read_buf;
-	nand_chip->write_buf = atmel_write_buf;
+		nand_chip->read_buf = atmel_read_buf16;
+		nand_chip->write_buf = atmel_write_buf16;
+	} else {
+		nand_chip->read_buf = atmel_read_buf;
+		nand_chip->write_buf = atmel_write_buf;
+	}
 
 	atmel_nand_enable(host);