diff -dpurN u-boot.orig/cpu/arm920t/s3c24x0/usb_ohci.c u-boot/cpu/arm920t/s3c24x0/usb_ohci.c
--- u-boot.orig/cpu/arm920t/s3c24x0/usb_ohci.c	2007-02-19 08:21:17.000000000 +0100
+++ u-boot/cpu/arm920t/s3c24x0/usb_ohci.c	2007-02-19 08:52:09.000000000 +0100
@@ -1605,7 +1605,7 @@ int usb_lowlevel_init(void)
 	/*
 	 * Enable USB host clock.
 	 */
-	clk_power->CLKCON |= (1 << 4);
+	clk_power->CLKCON |= CLKCON_USBHOST;
 
 	memset (&gohci, 0, sizeof (ohci_t));
 	memset (&urb_priv, 0, sizeof (urb_priv_t));
@@ -1642,7 +1642,7 @@ int usb_lowlevel_init(void)
 	if (hc_reset (&gohci) < 0) {
 		hc_release_ohci (&gohci);
 		/* Initialization failed */
-		clk_power->CLKCON &= ~(1 << 4);
+		clk_power->CLKCON &= ~CLKCON_USBHOST;
 		return -1;
 	}
 
@@ -1655,7 +1655,7 @@ int usb_lowlevel_init(void)
 		err ("can't start usb-%s", gohci.slot_name);
 		hc_release_ohci (&gohci);
 		/* Initialization failed */
-		clk_power->CLKCON &= ~(1 << 4);
+		clk_power->CLKCON &= ~CLKCON_USBHOST;
 		return -1;
 	}
 
@@ -1682,7 +1682,7 @@ int usb_lowlevel_stop(void)
 	/* call hc_release_ohci() here ? */
 	hc_reset (&gohci);
 	/* may not want to do this */
-	clk_power->CLKCON &= ~(1 << 4);
+	clk_power->CLKCON &= ~CLKCON_USBHOST;
 	return 0;
 }
 
diff -dpurN u-boot.orig/include/s3c2400.h u-boot/include/s3c2400.h
--- u-boot.orig/include/s3c2400.h	2007-02-19 08:21:20.000000000 +0100
+++ u-boot/include/s3c2400.h	2007-02-19 08:48:56.000000000 +0100
@@ -40,6 +40,10 @@ typedef enum {
 	S3C24X0_UART1,
 } S3C24X0_UARTS_NR;
 
+enum {
+	CLKCON_USBHOST	= 1 << 4,
+};
+
 /* S3C2400 device base addresses */
 #define S3C24X0_MEMCTL_BASE		0x14000000
 #define S3C24X0_USB_HOST_BASE		0x14200000
diff -dpurN u-boot.orig/include/s3c2410.h u-boot/include/s3c2410.h
--- u-boot.orig/include/s3c2410.h	2007-02-19 08:21:20.000000000 +0100
+++ u-boot/include/s3c2410.h	2007-02-19 08:49:36.000000000 +0100
@@ -44,6 +44,10 @@ typedef enum {
 	S3C24X0_UART2
 } S3C24X0_UARTS_NR;
 
+enum {
+	CLKCON_USBHOST	= 1 << 6,
+};
+
 /* S3C2410 device base addresses */
 #define S3C24X0_MEMCTL_BASE		0x48000000
 #define S3C24X0_USB_HOST_BASE		0x49000000