diff --git a/arch/arm/boot/dts/rk3188-radxarock.dts b/arch/arm/boot/dts/rk3188-radxarock.dts
index 9b31abedcef1..66fa87d1e2c2 100644
--- a/arch/arm/boot/dts/rk3188-radxarock.dts
+++ b/arch/arm/boot/dts/rk3188-radxarock.dts
@@ -90,6 +90,21 @@ sleep {
 		};
 	};
 
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "SPDIF";
+
+		simple-audio-card,dai-link@1 {  /* S/PDIF - S/PDIF */
+			cpu { sound-dai = <&spdif>; };
+			codec { sound-dai = <&spdif_out>; };
+		};
+	};
+
+	spdif_out: spdif-out {
+		compatible = "linux,spdif-dit";
+		#sound-dai-cells = <0>;
+	};
+
 	ir_recv: gpio-ir-receiver {
 		compatible = "gpio-ir-receiver";
 		gpios = <&gpio0 10 1>;
@@ -345,6 +360,10 @@ otg_vbus_drv: otg-vbus-drv {
 	};
 };
 
+&spdif {
+	status = "okay";
+};
+
 &uart0 {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/rk3188.dtsi b/arch/arm/boot/dts/rk3188.dtsi
index 316304272118..6399942f1840 100644
--- a/arch/arm/boot/dts/rk3188.dtsi
+++ b/arch/arm/boot/dts/rk3188.dtsi
@@ -121,6 +121,20 @@ i2s0: i2s@1011a000 {
 		status = "disabled";
 	};
 
+	spdif: sound@1011e000 {
+		compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif";
+		reg = <0x1011e000 0x2000>;
+		#sound-dai-cells = <0>;
+		clock-names = "hclk", "mclk";
+		clocks = <&cru HCLK_SPDIF>, <&cru SCLK_SPDIF>;
+		dmas = <&dmac1_s 8>;
+		dma-names = "tx";
+		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&spdif_tx>;
+		status = "disabled";
+	};
+
 	cru: clock-controller@20000000 {
 		compatible = "rockchip,rk3188-cru";
 		reg = <0x20000000 0x1000>;
@@ -484,6 +498,12 @@ i2s0_bus: i2s0-bus {
 						<RK_GPIO1 21 RK_FUNC_1 &pcfg_pull_none>;
 			};
 		};
+
+		spdif {
+			spdif_tx: spdif-tx {
+				rockchip,pins = <RK_GPIO1 14 RK_FUNC_1 &pcfg_pull_none>;
+			};
+		};
 	};
 };
 
diff --git a/arch/arm/boot/dts/rk3288-rock2-square.dts b/arch/arm/boot/dts/rk3288-rock2-square.dts
index d5f6f2665e6c..8af35c867a80 100644
--- a/arch/arm/boot/dts/rk3288-rock2-square.dts
+++ b/arch/arm/boot/dts/rk3288-rock2-square.dts
@@ -49,6 +49,20 @@ chosen {
 		stdout-path = "serial2:115200n8";
 	};
 
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "SPDIF";
+		simple-audio-card,dai-link@1 {  /* S/PDIF - S/PDIF */
+			cpu { sound-dai = <&spdif>; };
+			codec { sound-dai = <&spdif_out>; };
+		};
+	};
+
+	spdif_out: spdif-out {
+		compatible = "linux,spdif-dit";
+		#sound-dai-cells = <0>;
+	};
+
 	vcc_usb_host: vcc-host-regulator {
 		compatible = "regulator-fixed";
 		enable-active-high;
@@ -136,6 +150,10 @@ sdmmc_pwr: sdmmc-pwr {
 	};
 };
 
+&spdif {
+	status = "okay";
+};
+
 &uart2 {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index d6c2f9116646..12ae3450be54 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -744,6 +744,21 @@ wdt: watchdog@ff800000 {
 		status = "disabled";
 	};
 
+	spdif: sound@ff88b0000 {
+		compatible = "rockchip,rk3288-spdif", "rockchip,rk3066-spdif";
+		reg = <0xff8b0000 0x10000>;
+		#sound-dai-cells = <0>;
+		clock-names = "hclk", "mclk";
+		clocks = <&cru HCLK_SPDIF8CH>, <&cru SCLK_SPDIF8CH>;
+		dmas = <&dmac_bus_s 3>;
+		dma-names = "tx";
+		interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&spdif_tx>;
+		rockchip,grf = <&grf>;
+		status = "disabled";
+	};
+
 	i2s: i2s@ff890000 {
 		compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s";
 		reg = <0xff890000 0x10000>;
@@ -1437,5 +1452,11 @@ rmii_pins: rmii-pins {
 						<4 3 3 &pcfg_pull_none>;
 			};
 		};
+
+		spdif {
+			spdif_tx: spdif-tx {
+				rockchip,pins = <RK_GPIO6 11 RK_FUNC_1 &pcfg_pull_none>;
+			};
+		};
 	};
 };