diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 7ea29d4b873f..daeb9e9946a5 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -250,6 +250,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb1-v10-linux-amp.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb1-v10-lontium-hdmiin.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb1-v10-nvp6324-ahd2csi.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb1-v10-pdm.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb1-v10-rk621-hdmi2csi.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb1-v10-rk628-hdmi2csi.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb1-v10-tp2815-ahd2csi.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb2-v10.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10-rk621-hdmi2csi.dts b/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10-rk621-hdmi2csi.dts
new file mode 100644
index 000000000000..909865f344c2
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10-rk621-hdmi2csi.dts
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2024 Rockchip Electronics Co., Ltd.
+ *
+ */
+
+/dts-v1/;
+
+#include "rk3576.dtsi"
+#include "rk3576-evb1.dtsi"
+#include "rk3576-android.dtsi"
+
+/ {
+	model = "Rockchip RK3576 EVB1 V10 Board + Rockchip RK621 HDMI to MIPI Extboard";
+	compatible = "rockchip,rk3576-evb1-v10", "rockchip,rk3576";
+
+	rkvtunnel: rkvtunnel {
+		compatible = "rockchip,video-tunnel";
+		status = "okay";
+	};
+
+	hdmiin_sound: hdmiin-sound {
+		status = "okay";
+		compatible = "rockchip,hdmi";
+		rockchip,mclk-fs = <128>;
+		rockchip,card-name = "rockchip,rk621hdmiin";
+		rockchip,cpu = <&sai4>;
+		rockchip,codec = <&rk621_csi>;
+		rockchip,bitclock-master = <&rk621_csi>;
+		rockchip,frame-master = <&rk621_csi>;
+		rockchip,jack-det;
+	};
+};
+
+&csi2_dphy0 {
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		port@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			hdmi_mipi_in: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&hdmiin_out>;
+				data-lanes = <1 2 3 4>;
+			};
+		};
+		port@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			csidphy0_out: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&mipi1_csi2_input>;
+			};
+		};
+	};
+};
+
+&csi2_dphy0_hw {
+	status = "okay";
+};
+
+&csi2_dphy1_hw {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+	pinctrl-0 = <&i2c5m3_xfer>;
+	clock-frequency = <400000>;
+
+	rk621_csi: rk621_csi@50 {
+		reg = <0x50>;
+		compatible = "rockchip,rk628-csi-v4l2";
+		status = "okay";
+		power-domains = <&power RK3576_PD_VI>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&rk621_pin>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <RK_PB0 IRQ_TYPE_LEVEL_HIGH>;
+		enable-gpios = <&gpio3 RK_PD0 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpio3 RK_PC5 GPIO_ACTIVE_LOW>;
+		plugin-det-gpios = <&gpio3 RK_PD5 GPIO_ACTIVE_LOW>;
+		continues-clk = <1>;
+		cec-enable;
+		#sound-dai-cells = <0>;
+
+		rockchip,camera-module-index = <0>;
+		rockchip,camera-module-facing = "back";
+		rockchip,camera-module-name = "HDMI-MIPI1";
+		rockchip,camera-module-lens-name = "RK621-CSI";
+
+		port {
+			hdmiin_out: endpoint {
+				remote-endpoint = <&hdmi_mipi_in>;
+				data-lanes = <1 2 3 4>;
+			};
+		};
+	};
+};
+
+&mipi1_csi2 {
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			mipi1_csi2_input: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&csidphy0_out>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			mipi1_csi2_output: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&cif_mipi_in1>;
+			};
+		};
+	};
+};
+
+&rkcif {
+	status = "okay";
+};
+
+&rkcif_mipi_lvds1 {
+	status = "okay";
+
+	port {
+		cif_mipi_in1: endpoint {
+			remote-endpoint = <&mipi1_csi2_output>;
+		};
+	};
+};
+
+&rkcif_mmu {
+	status = "okay";
+};
+
+&sai4 {
+	dmas = <&dmac2 1>;
+	dma-names = "rx";
+	 pinctrl-0 = <&sai4m2_lrck
+		      &sai4m2_sclk
+		      &sai4m2_sdi>;
+	rockchip,sai-rx-wait-time-ms = <50>;
+	status = "okay";
+};
+
+&vcc_mipicsi0 {
+	/delete-property/ gpio;
+	/delete-property/ pinctrl-0;
+};
+
+&vcc_mipicsi1 {
+	/delete-property/ gpio;
+	/delete-property/ pinctrl-0;
+};
+
+&pinctrl {
+	hdmiin {
+		rk621_pin: rk621-pin {
+			rockchip,pins = <3 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>,
+					<3 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>,
+					<3 RK_PD0 RK_FUNC_GPIO &pcfg_pull_none>,
+					<3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};