diff --git a/arch/arm/src/cxd56xx/cxd56_usbdev.c b/arch/arm/src/cxd56xx/cxd56_usbdev.c
index 07aea3d6047..08858425ea7 100644
--- a/arch/arm/src/cxd56xx/cxd56_usbdev.c
+++ b/arch/arm/src/cxd56xx/cxd56_usbdev.c
@@ -664,19 +664,6 @@ static inline void cxd56_cableconnected(bool connected)
     }
 }
 
-/****************************************************************************
- * Name: cxd56_iscableconnected
- *
- * Description:
- *   Return the cable status. (true is connected)
- *
- ****************************************************************************/
-
-static inline bool cxd56_iscableconnected(void)
-{
-  return getreg32(CXD56_TOPREG_USB_VBUS) & VBUS_DET;
-}
-
 /****************************************************************************
  * Name: cxd56_rqdequeue
  *