diff --git a/drivers/usb/sl811_usb.c b/drivers/usb/sl811_usb.c
index 159cc25..48f1ee9 100644
--- a/drivers/usb/sl811_usb.c
+++ b/drivers/usb/sl811_usb.c
@@ -111,7 +111,7 @@
 
 int usb_init_kup4x (void)
 {
-	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 	volatile memctl8xx_t *memctl = &immap->im_memctl;
 	int i;
 	unsigned char tmp;
@@ -265,7 +265,7 @@
 
 		sl811_write(SL811_CTRL_A, ctrl);
 		while (!(sl811_read(SL811_INTRSTS) & SL811_INTR_DONE_A)) {
-			if (5*CFG_HZ < get_timer(time_start)) {
+			if (5*CONFIG_SYS_HZ < get_timer(time_start)) {
 				printf("USB transmit timed out\n");
 				return -USB_ST_CRC_ERR;
 			}