diff --git a/include/asm-arm/arch-at91/gpio.h b/include/asm-arm/arch-at91/gpio.h
index c4d7b97..e2d375b 100644
--- a/include/asm-arm/arch-at91/gpio.h
+++ b/include/asm-arm/arch-at91/gpio.h
@@ -16,6 +16,7 @@
 #include <asm/io.h>
 #include <asm/errno.h>
 #include <asm/arch/at91_pio.h>
+#include <asm/arch/hardware.h>
 
 #define PIN_BASE		32