-#ifndef __ASM_ARCH_ZYLONITE_H
-#define __ASM_ARCH_ZYLONITE_H
+#ifndef __ASM_ARCH_LITTLETON_H
+#define __ASM_ARCH_LITTLETON_H
+
+#include <mach/gpio.h>
#define LITTLETON_ETH_PHYS 0x30000000
#define LITTLETON_GPIO_LCD_CS (17)
-#endif /* __ASM_ARCH_ZYLONITE_H */
+#define EXT0_GPIO_BASE (NR_BUILTIN_GPIO)
+#define EXT0_GPIO(x) (EXT0_GPIO_BASE + (x))
+
+#endif /* __ASM_ARCH_LITTLETON_H */