diff --git a/sys/mips/atheros/ar934xreg.h b/sys/mips/atheros/ar934xreg.h
index 1df1cb293ac8..3d850190bc9d 100644
--- a/sys/mips/atheros/ar934xreg.h
+++ b/sys/mips/atheros/ar934xreg.h
@@ -179,6 +179,12 @@
 /*
  * GPIO block
  */
+#define	AR934X_GPIO_REG_OUT_FUNC0	0x2c
+#define	AR934X_GPIO_REG_OUT_FUNC1	0x30
+#define	AR934X_GPIO_REG_OUT_FUNC2	0x34
+#define	AR934X_GPIO_REG_OUT_FUNC3	0x38
+#define	AR934X_GPIO_REG_OUT_FUNC4	0x3c
+#define	AR934X_GPIO_REG_OUT_FUNC5	0x40
 #define	AR934X_GPIO_REG_FUNC		0x6c
 #define	AR934X_GPIO_COUNT		23