diff --git a/arch/arm64/boot/dts/rockchip/rk3366-tb.dts b/arch/arm64/boot/dts/rockchip/rk3366-tb.dts
index 243aaff59c08..943303b06855 100644
--- a/arch/arm64/boot/dts/rockchip/rk3366-tb.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3366-tb.dts
@@ -784,8 +784,8 @@
 	assigned-clock-parents = <&ext_gmac>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&rgmii_pins>;
-	tx_delay = <0x30>;
-	rx_delay = <0x10>;
+	tx_delay = <0x25>;
+	rx_delay = <0x1d>;
 	status = "okay";
 };