diff --git a/target/linux/ath79/dts/ar1022_sitecom_wlr-7100.dts b/target/linux/ath79/dts/ar1022_sitecom_wlr-7100.dts
index d008dd5ec86..e2ccef105d6 100644
--- a/target/linux/ath79/dts/ar1022_sitecom_wlr-7100.dts
+++ b/target/linux/ath79/dts/ar1022_sitecom_wlr-7100.dts
@@ -65,6 +65,8 @@
 	gmac-config {
 		device = <&gmac>;
 		rgmii-gmac0 = <1>;
+		rxdv-delay = <3>;
+		rxd-delay = <3>;
 	};
 };