diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
index cb83d866db7f..a945db3c4644 100644
--- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
@@ -604,6 +604,7 @@
 			power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
 			resets = <&cpg 812>;
 			phy-mode = "rgmii";
+			iommus = <&ipmmu_ds0 16>;
 			#address-cells = <1>;
 			#size-cells = <0>;
 			status = "disabled";