diff --git a/arch/arm/dts/socfpga_cyclone5_socrates.dts b/arch/arm/dts/socfpga_cyclone5_socrates.dts
index 05b935da0a080986d66a3952c0fa1fc509df4761..a18d16856b4912666fbdb9abacc269d65084bb77 100644
--- a/arch/arm/dts/socfpga_cyclone5_socrates.dts
+++ b/arch/arm/dts/socfpga_cyclone5_socrates.dts
@@ -28,6 +28,15 @@
 &gmac1 {
 	status = "okay";
 	phy-mode = "rgmii";
+
+	rxd0-skew-ps = <0>;
+	rxd1-skew-ps = <0>;
+	rxd2-skew-ps = <0>;
+	rxd3-skew-ps = <0>;
+	txen-skew-ps = <0>;
+	txc-skew-ps = <2600>;
+	rxdv-skew-ps = <0>;
+	rxc-skew-ps = <2000>;
 };
 
 &i2c0 {