diff --git a/arch/arm/dts/rk3399-firefly.dts b/arch/arm/dts/rk3399-firefly.dts
index 3d3f5079345a13f17441aff28d1ca67aad873c9f..31e3ba8a4742bb4fb862859e3808288016f42aa4 100644
--- a/arch/arm/dts/rk3399-firefly.dts
+++ b/arch/arm/dts/rk3399-firefly.dts
@@ -211,8 +211,8 @@
 	snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
 	snps,reset-active-low;
 	snps,reset-delays-us = <0 10000 50000>;
-	tx_delay = <0x28>;
-	rx_delay = <0x11>;
+	tx_delay = <0x33>;
+	rx_delay = <0x45>;
 	status = "okay";
 };