diff --git a/arch/arm64/boot/dts/rockchip/rk3366-tb.dts b/arch/arm64/boot/dts/rockchip/rk3366-tb.dts
index 0609a31e5dc8..c25371416611 100644
--- a/arch/arm64/boot/dts/rockchip/rk3366-tb.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3366-tb.dts
@@ -155,6 +155,27 @@
 		};
 	};
 
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,name = "rockchip,rt5640-codec";
+		simple-audio-card,mclk-fs = <256>;
+		simple-audio-card,widgets =
+			"Microphone", "Mic Jack",
+			"Headphone", "Headphone Jack";
+		simple-audio-card,routing =
+			"Mic Jack", "MICBIAS1",
+			"IN1P", "Mic Jack",
+			"Headphone Jack", "HPOL",
+			"Headphone Jack", "HPOR";
+		simple-audio-card,cpu {
+			sound-dai = <&i2s_8ch>;
+		};
+		simple-audio-card,codec {
+			sound-dai = <&rt5640>;
+		};
+	};
+
 	vcc_sys: vcc-sys {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc_sys";
@@ -440,6 +461,27 @@
 	};
 };
 
+&i2c1 {
+	status = "okay";
+
+	rt5640: rt5640@1c {
+		#sound-dai-cells = <0>;
+		compatible = "realtek,rt5640";
+		reg = <0x1c>;
+		clocks = <&cru SCLK_I2S_8CH_OUT>;
+		clock-names = "mclk";
+		realtek,in1-differential;
+	};
+};
+
+&i2s_8ch {
+	status = "okay";
+	rockchip,i2s-broken-burst-len;
+	rockchip,playback-channels = <8>;
+	rockchip,capture-channels = <2>;
+	#sound-dai-cells = <0>;
+};
+
 &pwm0 {
 	status = "okay";
 };