diff --git a/arch/arm/boot/dts/r8a7779-marzen-reference.dts b/arch/arm/boot/dts/r8a7779-marzen-reference.dts
index 76f5eef7d1cce9055587164f5a157a48ec66956a..b27c6373ff4d028b69c310f882d986ec57f8baf6 100644
--- a/arch/arm/boot/dts/r8a7779-marzen-reference.dts
+++ b/arch/arm/boot/dts/r8a7779-marzen-reference.dts
@@ -45,6 +45,7 @@
 		phy-mode = "mii";
 		interrupt-parent = <&irqpin0>;
 		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+		smsc,irq-push-pull;
 		reg-io-width = <4>;
 		vddvario-supply = <&fixedregulator3v3>;
 		vdd33a-supply = <&fixedregulator3v3>;