diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 355b81148b8567..c1c094e245f26a 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -259,6 +259,8 @@ patternProperties:
     description: DataImage, Inc.
   "^davicom,.*":
     description: DAVICOM Semiconductor, Inc.
+  "^dawn,.*":
+    description: Dawn Corporation
   "^dell,.*":
     description: Dell Inc.
   "^delta,.*":
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 03b5424bafa80d..b640bb9c42c67a 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1405,6 +1405,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-ibm-rainier-4u.dtb \
 	aspeed-bmc-intel-s2600wf.dtb \
 	aspeed-bmc-inspur-fp5280g2.dtb \
+	aspeed-bmc-dawn-p620.dtb \
 	aspeed-bmc-lenovo-hr630.dtb \
 	aspeed-bmc-lenovo-hr855xg2.dtb \
 	aspeed-bmc-microsoft-olympus.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-dawn-p620.dts b/arch/arm/boot/dts/aspeed-bmc-dawn-p620.dts
new file mode 100644
index 00000000000000..3d8d4a5918e01f
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-dawn-p620.dts
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2021 Dawn Corporation
+/dts-v1/;
+
+#include "aspeed-g5.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+	model = "P620 BMC";
+	compatible = "dawn,p620-bmc", "aspeed,ast2500";
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "earlyprintk";
+	};
+
+	memory {
+		reg = <0x80000000 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		vga_memory: framebuffer@9f000000 {
+			no-map;
+			reg = <0x9f000000 0x01000000>;
+		};
+	};
+
+	leds {
+	    compatible = "gpio-leds";
+	    bmc_alive {
+		label = "bmc_alive";
+		gpios = <&gpio ASPEED_GPIO(I, 1) GPIO_ACTIVE_LOW>;
+		linux,default-trigger = "timer";
+	    };
+	};
+
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
+			<&adc 4>, <&adc 5>, <&adc 6>, <&adc 7>;
+	};
+
+};
+
+&fmc {
+	status = "okay";
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc";
+#include "openbmc-flash-layout.dtsi"
+	};
+};
+
+&spi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1_default>;
+
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "pnor";
+	};
+};
+
+&uart5 {
+	status = "okay";
+};
+
+&mac0 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii1_default>;
+	clocks = <&syscon ASPEED_CLK_GATE_MAC1CLK>,
+		 <&syscon ASPEED_CLK_MAC1RCLK>;
+	clock-names = "MACCLK", "RCLK";
+	use-ncsi;
+};
+
+&mac1 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii2_default &pinctrl_mdio2_default>;
+};
+
+&i2c6 {
+	status = "okay";
+
+	tmp421@4e {
+		compatible = "ti,tmp421";
+		reg = <0x4e>;
+	};
+
+	tmp112@48 {
+		compatible = "ti,tmp112";
+		reg = <0x48>;
+	};
+
+	eeprom@54 {
+		compatible = "atmel,24c64";
+		reg = <0x54>;
+		pagesize = <32>;
+	};
+};
+
+&i2c7 {
+	status = "okay";
+
+	adm1278@11 {
+		  compatible = "adi,adm1278";
+		  reg = <0x11>;
+	};
+};
+
+&gfx {
+	status = "okay";
+};
+
+&pinctrl {
+	aspeed,external-nodes = <&gfx &lhc>;
+};
+
+&pwm_tacho {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default>;
+
+	fan@0 {
+		reg = <0x00>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x00 0x01>;
+	};
+
+	fan@1 {
+		reg = <0x01>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x02 0x03>;
+	};
+};
+
+&adc {
+	status = "okay";
+};