diff --git a/port/dwc2/usb_glue_gd.c b/port/dwc2/usb_glue_gd.c
index f9727848..d8d23fe6 100644
--- a/port/dwc2/usb_glue_gd.c
+++ b/port/dwc2/usb_glue_gd.c
@@ -13,7 +13,7 @@ uint32_t usbd_get_dwc2_gccfg_conf(uint32_t reg_base)
 #ifdef CONFIG_USB_HS
     return 0;
 #else
-    return ((1 << 16) | (1 << 18) | (1 << 19));
+    return ((1 << 16) | (1 << 18) | (1 << 19) | (1 << 21));
 #endif
 }
 
@@ -22,6 +22,6 @@ uint32_t usbh_get_dwc2_gccfg_conf(uint32_t reg_base)
 #ifdef CONFIG_USB_HS
     return 0;
 #else
-    return ((1 << 16) | (1 << 18) | (1 << 19));
+    return ((1 << 16) | (1 << 18) | (1 << 19) | (1 << 21));
 #endif
 }
\ No newline at end of file