diff --git a/arch/arm/boot/dts/bcm53573.dtsi b/arch/arm/boot/dts/bcm53573.dtsi
index d38f103db8a6..5aef9fd65104 100644
--- a/arch/arm/boot/dts/bcm53573.dtsi
+++ b/arch/arm/boot/dts/bcm53573.dtsi
@@ -180,6 +180,24 @@ ohci_port2: port@2 {
 
 		gmac0: ethernet@5000 {
 			reg = <0x5000 0x1000>;
+
+			mdio {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				switch: switch@1e {
+					compatible = "brcm,bcm53125";
+					reg = <0x1e>;
+
+					status = "disabled";
+
+					/* ports are defined in board DTS */
+					ports {
+						#address-cells = <1>;
+						#size-cells = <0>;
+					};
+				};
+			};
 		};
 
 		gmac1: ethernet@b000 {