diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 2a220cb1228d..f69486665484 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -1314,6 +1314,18 @@
 		status = "disabled";
 	};
 
+	sdmmc_ext: dwmmc@ff5f0000 {
+		compatible = "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc";
+		reg = <0x0 0xff5f0000 0x0 0x4000>;
+		clock-freq-min-max = <400000 150000000>;
+		clocks = <&cru HCLK_SDMMC_EXT>, <&cru SCLK_SDMMC_EXT>,
+			 <&cru SCLK_SDMMC_EXT_DRV>, <&cru SCLK_SDMMC_EXT_SAMPLE>;
+		clock-names = "biu", "ciu", "ciu-drv", "ciu-sample";
+		fifo-depth = <0x100>;
+		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
 	usbdrd3: usb@ff600000 {
 		compatible = "rockchip,rk3328-dwc3";
 		clocks = <&cru SCLK_USB3OTG_REF>, <&cru SCLK_USB3OTG_SUSPEND>,