diff --git a/include/dt-bindings/pinctrl/am33xx.h b/include/dt-bindings/pinctrl/am33xx.h
index 2fbc804..226f772 100644
--- a/include/dt-bindings/pinctrl/am33xx.h
+++ b/include/dt-bindings/pinctrl/am33xx.h
@@ -13,7 +13,8 @@
 
 #define PULL_DISABLE		(1 << 3)
 #define INPUT_EN		(1 << 5)
-#define SLEWCTRL_FAST		(1 << 6)
+#define SLEWCTRL_SLOW		(1 << 6)
+#define SLEWCTRL_FAST		0
 
 /* update macro depending on INPUT_EN and PULL_ENA */
 #undef PIN_OUTPUT