diff --git a/arch/arm/src/tiva/lm/lm3s_gpio.h b/arch/arm/src/tiva/lm/lm3s_gpio.h
index bdd5b2f35c4..19ab6b47f03 100644
--- a/arch/arm/src/tiva/lm/lm3s_gpio.h
+++ b/arch/arm/src/tiva/lm/lm3s_gpio.h
@@ -234,6 +234,16 @@
 #  define GPIO_PIN_6                  (6 << GPIO_PIN_SHIFT)
 #  define GPIO_PIN_7                  (7 << GPIO_PIN_SHIFT)
 
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* This opaque type permits common function prototype for GPIO functions
+ * across all MCUs.
+ */
+
+typedef uint32_t pinconfig_t;
+
 /****************************************************************************
  * Public Function Prototypes
  ****************************************************************************/