diff --git a/patch/kernel/rockchip64-current/rockpi-4b_increase_rx_delay.patch b/patch/kernel/rockchip64-current/rockpi-4b_increase_rx_delay.patch
new file mode 100644
index 000000000000..0df2e473c260
--- /dev/null
+++ b/patch/kernel/rockchip64-current/rockpi-4b_increase_rx_delay.patch
@@ -0,0 +1,13 @@
+diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi
+index 5ecaf63ea..b71336f96 100644
+--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi
++++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi
+@@ -177,7 +177,7 @@
+ 	snps,reset-delays-us = <0 10000 30000>;
+ 	snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
+ 	tx_delay = <0x28>;
+-	rx_delay = <0x11>;
++	rx_delay = <0x20>;
+ 	status = "okay";
+ 
+ 	mdio {