diff --git a/patch/kernel/rockchip64-dev/board-rockpro64-reduce-sdcard-speed.patch b/patch/kernel/rockchip64-dev/board-rockpro64-reduce-sdcard-speed.patch
new file mode 100644
index 0000000000..1eb2d5366a
--- /dev/null
+++ b/patch/kernel/rockchip64-dev/board-rockpro64-reduce-sdcard-speed.patch
@@ -0,0 +1,13 @@
+diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
+index 4cbca4d..a0e2efb 100644
+--- a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
+@@ -694,7 +729,7 @@
+ 	cd-gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
+ 	disable-wp;
+ 	sd-uhs-sdr104;
+-	max-frequency = <150000000>;
++	max-frequency = <10000000>;
+ 	vqmmc-supply = <&vcc_sdio>;
+ 	pinctrl-names = "default";
+ 	pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_bus4>;