diff --git a/kernel/arch/arm/boot/dts/firefly-rk3288-AIO.dts b/kernel/arch/arm/boot/dts/firefly-rk3288-AIO.dts
index 59ce0c7977..3ecf3f5c3c 100644
--- a/kernel/arch/arm/boot/dts/firefly-rk3288-AIO.dts
+++ b/kernel/arch/arm/boot/dts/firefly-rk3288-AIO.dts
@@ -187,8 +187,8 @@
 	reset-gpio = <&gpio4 GPIO_B0 GPIO_ACTIVE_LOW>;
 	phy-mode = "rgmii";
 	clock_in_out = "input";
-	tx_delay = <0x30>;
-	rx_delay = <0x20>;
+	tx_delay = <0x23>;
+	rx_delay = <0x19>;
 };
 
 &uart_dbg {