diff --git a/drivers/usb/dwc_otg/usbdev_rk30.c b/drivers/usb/dwc_otg/usbdev_rk30.c
index 819838baa291..c4ffc03832d9 100755
--- a/drivers/usb/dwc_otg/usbdev_rk30.c
+++ b/drivers/usb/dwc_otg/usbdev_rk30.c
@@ -52,7 +52,8 @@ void usb20otg_hw_init(void)
 
     // other haredware init
 #ifdef CONFIG_ARCH_RK3066B
-    rk30_mux_api_set(GPIO3D5_PWM2_JTAGTCK_OTGDRVVBUS_NAME, GPIO3D_OTGDRVVBUS);
+//  conflict with pwm2
+//    rk30_mux_api_set(GPIO3D5_PWM2_JTAGTCK_OTGDRVVBUS_NAME, GPIO3D_OTGDRVVBUS);
 #else
     rk30_mux_api_set(GPIO0A5_OTGDRVVBUS_NAME, GPIO0A_OTG_DRV_VBUS);
 #endif