--- a/include/asm-arm/arch-pxa/udc.h
+++ b/include/asm-arm/arch-pxa/udc.h
@@ -5,6 +5,7 @@
  * USB Device Controller (UDC) is wired.
  *
  */
+#include <asm/arch/pxa-regs.h>
 #include <asm/mach/udc_pxa2xx.h>
 
 extern void pxa_set_udc_info(struct pxa2xx_udc_mach_info *info);