diff --git a/arch/arm/boards/at91sam9261ek/init.c b/arch/arm/boards/at91sam9261ek/init.c
index 400952300..812b39958 100644
--- a/arch/arm/boards/at91sam9261ek/init.c
+++ b/arch/arm/boards/at91sam9261ek/init.c
@@ -89,7 +89,7 @@ static void ek_add_device_nand(void)
  */
 #if defined(CONFIG_DRIVER_NET_DM9000)
 static struct dm9000_platform_data dm9000_data = {
-	.buswidth	= DM9000_WIDTH_16,
+	.buswidth	= IORESOURCE_MEM_16BIT,
 	.srom		= 0,
 };
 
diff --git a/arch/arm/boards/mini2440/mini2440.c b/arch/arm/boards/mini2440/mini2440.c
index 2d27b0094..634e0351a 100644
--- a/arch/arm/boards/mini2440/mini2440.c
+++ b/arch/arm/boards/mini2440/mini2440.c
@@ -63,7 +63,7 @@ static struct device_d nand_dev = {
  * Area 2: Offset 0x304...0x307
  */
 static struct dm9000_platform_data dm9000_data = {
-	.buswidth = DM9000_WIDTH_16,
+	.buswidth = IORESOURCE_MEM_16BIT,
 	.srom     = 1,
 };
 
diff --git a/arch/arm/boards/pm9261/init.c b/arch/arm/boards/pm9261/init.c
index 1059aecc9..fa21e2409 100644
--- a/arch/arm/boards/pm9261/init.c
+++ b/arch/arm/boards/pm9261/init.c
@@ -89,7 +89,7 @@ static void pm_add_device_nand(void)
  */
 #if defined(CONFIG_DRIVER_NET_DM9000)
 static struct dm9000_platform_data dm9000_data = {
-	.buswidth	= DM9000_WIDTH_16,
+	.buswidth	= IORESOURCE_MEM_16BIT,
 	.srom		= 1,
 };
 
diff --git a/arch/arm/boards/scb9328/scb9328.c b/arch/arm/boards/scb9328/scb9328.c
index cf72ef4c7..4c0ed02aa 100644
--- a/arch/arm/boards/scb9328/scb9328.c
+++ b/arch/arm/boards/scb9328/scb9328.c
@@ -35,7 +35,7 @@
 #include <mach/devices-imx1.h>
 
 static struct dm9000_platform_data dm9000_data = {
-	.buswidth = DM9000_WIDTH_16,
+	.buswidth = IORESOURCE_MEM_16BIT,
 	.srom     = 1,
 };
 
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index b867d214d..691d8771e 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -294,16 +294,16 @@ static int dm9000_eth_send (struct eth_device *edev,
 	writeb(DM9000_MWCMD, priv->iobase);
 
 	switch (priv->buswidth) {
-	case DM9000_WIDTH_8:
+	case IORESOURCE_MEM_8BIT:
 		for (i = 0; i < length; i++)
 			writeb(data_ptr[i] & 0xff, priv->iodata);
 		break;
-	case DM9000_WIDTH_16:
+	case IORESOURCE_MEM_16BIT:
 		tmplen = (length + 1) / 2;
 		for (i = 0; i < tmplen; i++)
 			writew(((u16 *)data_ptr)[i], priv->iodata);
 		break;
-	case DM9000_WIDTH_32:
+	case IORESOURCE_MEM_32BIT:
 		tmplen = (length + 3) / 4;
 		for (i = 0; i < tmplen; i++)
 			writel(((u32 *) data_ptr)[i], priv->iodata);
@@ -371,20 +371,20 @@ static int dm9000_eth_rx (struct eth_device *edev)
 	/* Move data from DM9000 */
 	/* Read received packet from RX SRAM */
 	switch (priv->buswidth) {
-	case DM9000_WIDTH_8:
+	case IORESOURCE_MEM_8BIT:
 		RxStatus = readb(priv->iodata) + (readb(priv->iodata) << 8);
 		RxLen = readb(priv->iodata) + (readb(priv->iodata) << 8);
 		for (i = 0; i < RxLen; i++)
 			rdptr[i] = readb(priv->iodata);
 		break;
-	case DM9000_WIDTH_16:
+	case IORESOURCE_MEM_16BIT:
 		RxStatus = readw(priv->iodata);
 		RxLen = readw(priv->iodata);
 		tmplen = (RxLen + 1) / 2;
 		for (i = 0; i < tmplen; i++)
 			((u16 *) rdptr)[i] = readw(priv->iodata);
 		break;
-	case DM9000_WIDTH_32:
+	case IORESOURCE_MEM_32BIT:
 		tmpdata = readl(priv->iodata);
 		RxStatus = tmpdata;
 		RxLen = tmpdata >> 16;
diff --git a/include/dm9000.h b/include/dm9000.h
index 0991ab534..c4618f1be 100644
--- a/include/dm9000.h
+++ b/include/dm9000.h
@@ -2,10 +2,6 @@
 #ifndef __DM9000_H__
 #define __DM9000_H__
 
-#define DM9000_WIDTH_8		1
-#define DM9000_WIDTH_16		2
-#define DM9000_WIDTH_32		3
-
 struct dm9000_platform_data {
 	int buswidth;
 	int srom;