diff --git a/common/usb.c b/common/usb.c
index 3c9ede4..1ec30bc 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -81,16 +81,6 @@
  */
 static void usb_scan_devices(void);
 
-/***********************************************************************
- * wait_ms
- */
-
-inline void wait_ms(unsigned long ms)
-{
-	while (ms-- > 0)
-		udelay(1000);
-}
-
 /***************************************************************************
  * Init USB Device
  */
@@ -209,7 +199,7 @@
 	while (timeout--) {
 		if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
 			break;
-		wait_ms(1);
+		mdelay(1);
 	}
 	if (dev->status)
 		return -1;
@@ -233,7 +223,7 @@
 	while (timeout--) {
 		if (!((volatile unsigned long)dev->status & USB_ST_NOT_PROC))
 			break;
-		wait_ms(1);
+		mdelay(1);
 	}
 	*actual_length = dev->act_len;
 	if (dev->status == 0)
@@ -897,7 +887,7 @@
 		return 1;
 	}
 
-	wait_ms(10);	/* Let the SET_ADDRESS settle */
+	mdelay(10);	/* Let the SET_ADDRESS settle */
 
 	tmp = sizeof(dev->descriptor);