diff --git a/target/linux/ath79/dts/qca9558_tplink_archer-c7.dtsi b/target/linux/ath79/dts/qca9558_tplink_archer-c7.dtsi
index 70c8f63fbb..d6fb29ecfa 100644
--- a/target/linux/ath79/dts/qca9558_tplink_archer-c7.dtsi
+++ b/target/linux/ath79/dts/qca9558_tplink_archer-c7.dtsi
@@ -167,6 +167,7 @@
 	mtd-mac-address = <&uboot 0x1fc00>;
 	mtd-mac-address-increment = <1>;
 	phy-handle = <&phy0>;
+	pll-data = <0x56000000 0x00000101 0x00001616>;
 
 	gmac-config {
 		device = <&gmac>;
@@ -178,6 +179,7 @@
 	status = "okay";
 
 	mtd-mac-address = <&uboot 0x1fc00>;
+	pll-data = <0x03000101 0x00000101 0x00001616>;
 
 	fixed-link {
 		speed = <1000>;