diff --git a/configs/nucleus2g/src/nucleus2g_internal.h b/configs/nucleus2g/src/nucleus2g_internal.h
index 6a84314ee6..fe9551c335 100755
--- a/configs/nucleus2g/src/nucleus2g_internal.h
+++ b/configs/nucleus2g/src/nucleus2g_internal.h
@@ -144,16 +144,6 @@
 
 extern void weak_function lpc17_sspinitialize(void);
 
-/************************************************************************************
- * Name: lpc17_usbinitialize
- *
- * Description:
- *   Called to setup USB-related GPIO pins for the NUCLEUS-2G board.
- *
- ************************************************************************************/
-
-extern void weak_function lpc17_usbinitialize(void);
-
 #endif /* __ASSEMBLY__ */
 #endif /* _CONFIGS_NUCLEUS2G_SRC_NUCLEUS2G_INTERNAL_H */
 
diff --git a/configs/nucleus2g/src/up_boot.c b/configs/nucleus2g/src/up_boot.c
index 2871a1dd5a..8e2a5c72c6 100755
--- a/configs/nucleus2g/src/up_boot.c
+++ b/configs/nucleus2g/src/up_boot.c
@@ -101,18 +101,6 @@ void lpc17_boardinitialize(void)
     }
 #endif
 
-   /* Initialize USB if 1) USBDEV is selected, 2) the USB controller is not
-    * disabled, and 3) the weak function lpc17_usbinitialize() has been brought
-    * into the build.
-    */
-
-#if defined(CONFIG_USBDEV) && defined(CONFIG_LPC17_USBDEV)
-  if (lpc17_usbinitialize)
-    {
-      lpc17_usbinitialize();
-    }
-#endif
-
   /* Configure on-board LEDs if LED support has been selected. */
 
 #ifdef CONFIG_ARCH_LEDS