Merge tag 'aspeed-5.17-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc into arm/dt

ASPEED device tree updates for 5.17

 - New machines:

  * TYAN S8036 AST2500 BMC
  * Facebook Bletchley AST2600 BMC
  * Yadro VEGMAN series of AST2500 BMC for x86 servers

 - LPC clock additions, to fix long standing missed irq on boot issue

 - Secure boot controller description for AST2600

 - Alternate chip flash layout, used by Bytedance's G220A

 - Various additions to Rainier, Everest, S7106

* tag 'aspeed-5.17-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc:
  ARM: dts: aspeed: add LCLK setting into LPC KCS nodes
  dt-bindings: ipmi: bt-bmc: add 'clocks' as a required property
  ARM: dts: aspeed: add LCLK setting into LPC IBT node
  ARM: dts: aspeed: p10: Add TPM device
  ARM: dts: aspeed: p10: Enable USB host ports
  ARM: dts: aspeed: Add TYAN S8036 BMC machine
  ARM: dts: aspeed: tyan-s7106: Add uart_routing and fix vuart config
  ARM: dts: aspeed: Adding Facebook Bletchley BMC
  ARM: dts: aspeed: g220a: Enable secondary flash
  ARM: dts: Add openbmc-flash-layout-64-alt.dtsi
  ARM: dts: aspeed: Add secure boot controller node
  dt-bindings: aspeed: Add Secure Boot Controller bindings
  ARM: dts: aspeed: add device tree for YADRO VEGMAN BMC
  dt-bindings: vendor-prefixes: add YADRO
  ARM: dts: aspeed: mtjade: Add uefi partition
  ARM: dts: aspeed: mtjade: Add I2C buses for NVMe devices
  ARM: dts: aspeed: tyan-s7106: Update nct7802 config

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

16 files changed, 2498 insertions, 2 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index a6ec7928eda6..235ad559acb2 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1506,6 +1506,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-arm-stardragon4800-rep2.dtb \
 	aspeed-bmc-asrock-e3c246d4i.dtb \
 	aspeed-bmc-bytedance-g220a.dtb \
+	aspeed-bmc-facebook-bletchley.dtb \
 	aspeed-bmc-facebook-cloudripper.dtb \
 	aspeed-bmc-facebook-cmm.dtb \
 	aspeed-bmc-facebook-elbert.dtb \
@@ -1543,4 +1544,8 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-quanta-q71l.dtb \
 	aspeed-bmc-supermicro-x11spi.dtb \
 	aspeed-bmc-inventec-transformers.dtb \
-	aspeed-bmc-tyan-s7106.dtb
+	aspeed-bmc-tyan-s7106.dtb \
+	aspeed-bmc-tyan-s8036.dtb \
+	aspeed-bmc-vegman-n110.dtb \
+	aspeed-bmc-vegman-rx20.dtb \
+	aspeed-bmc-vegman-sx20.dtb
diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dts b/arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dts
index 3515d55bd312..4c3c3f1a12ea 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dts
@@ -7,6 +7,50 @@
 	model = "Ampere Mt. Jade BMC";
 	compatible = "ampere,mtjade-bmc", "aspeed,ast2500";
 
+	aliases {
+		/*
+		 *  i2c bus 50-57 assigned to NVMe slot 0-7
+		 */
+		i2c50 = &nvmeslot_0;
+		i2c51 = &nvmeslot_1;
+		i2c52 = &nvmeslot_2;
+		i2c53 = &nvmeslot_3;
+		i2c54 = &nvmeslot_4;
+		i2c55 = &nvmeslot_5;
+		i2c56 = &nvmeslot_6;
+		i2c57 = &nvmeslot_7;
+
+		/*
+		 *  i2c bus 60-67 assigned to NVMe slot 8-15
+		 */
+		i2c60 = &nvmeslot_8;
+		i2c61 = &nvmeslot_9;
+		i2c62 = &nvmeslot_10;
+		i2c63 = &nvmeslot_11;
+		i2c64 = &nvmeslot_12;
+		i2c65 = &nvmeslot_13;
+		i2c66 = &nvmeslot_14;
+		i2c67 = &nvmeslot_15;
+
+		/*
+		 *  i2c bus 70-77 assigned to NVMe slot 16-23
+		 */
+		i2c70 = &nvmeslot_16;
+		i2c71 = &nvmeslot_17;
+		i2c72 = &nvmeslot_18;
+		i2c73 = &nvmeslot_19;
+		i2c74 = &nvmeslot_20;
+		i2c75 = &nvmeslot_21;
+		i2c76 = &nvmeslot_22;
+		i2c77 = &nvmeslot_23;
+
+		/*
+		 *  i2c bus 80-81 assigned to NVMe M2 slot 0-1
+		 */
+		i2c80 = &nvme_m2_0;
+		i2c81 = &nvme_m2_1;
+	};
+
 	chosen {
 		stdout-path = &uart5;
 		bootargs = "console=ttyS4,115200 earlycon";
@@ -330,6 +374,15 @@
 		m25p,fast-read;
 		label = "pnor";
 		/* spi-max-frequency = <100000000>; */
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			uefi@400000 {
+				reg = <0x400000 0x1C00000>;
+				label = "pnor-uefi";
+			};
+		};
 	};
 };
 
@@ -445,6 +498,220 @@
 
 &i2c5 {
 	status = "okay";
+	i2c-mux@70 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x70>;
+		i2c-mux-idle-disconnect;
+
+		nvmeslot_0_7: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x3>;
+		};
+	};
+
+	i2c-mux@71 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x71>;
+		i2c-mux-idle-disconnect;
+
+		nvmeslot_8_15: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x4>;
+		};
+
+		nvmeslot_16_23: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x3>;
+		};
+
+	};
+
+	i2c-mux@72 {
+		compatible = "nxp,pca9545";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x72>;
+		i2c-mux-idle-disconnect;
+
+		nvme_m2_0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0>;
+		};
+
+		nvme_m2_1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x1>;
+		};
+	};
+};
+
+&nvmeslot_0_7 {
+	status = "okay";
+
+	i2c-mux@75 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x75>;
+		i2c-mux-idle-disconnect;
+
+		nvmeslot_0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0>;
+		};
+		nvmeslot_1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x1>;
+		};
+		nvmeslot_2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x2>;
+		};
+		nvmeslot_3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x3>;
+		};
+		nvmeslot_4: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x4>;
+		};
+		nvmeslot_5: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x5>;
+		};
+		nvmeslot_6: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x6>;
+		};
+		nvmeslot_7: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x7>;
+		};
+
+	};
+};
+
+&nvmeslot_8_15 {
+	status = "okay";
+
+	i2c-mux@75 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x75>;
+		i2c-mux-idle-disconnect;
+
+		nvmeslot_8: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0>;
+		};
+		nvmeslot_9: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x1>;
+		};
+		nvmeslot_10: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x2>;
+		};
+		nvmeslot_11: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x3>;
+		};
+		nvmeslot_12: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x4>;
+		};
+		nvmeslot_13: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x5>;
+		};
+		nvmeslot_14: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x6>;
+		};
+		nvmeslot_15: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x7>;
+		};
+	};
+};
+
+&nvmeslot_16_23 {
+	status = "okay";
+
+	i2c-mux@75 {
+		compatible = "nxp,pca9548";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x75>;
+		i2c-mux-idle-disconnect;
+
+		nvmeslot_16: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0>;
+		};
+		nvmeslot_17: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x1>;
+		};
+		nvmeslot_18: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x2>;
+		};
+		nvmeslot_19: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x3>;
+		};
+		nvmeslot_20: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x4>;
+		};
+		nvmeslot_21: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x5>;
+		};
+		nvmeslot_22: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x6>;
+		};
+		nvmeslot_23: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x7>;
+		};
+	};
 };
 
 &i2c6 {
diff --git a/arch/arm/boot/dts/aspeed-bmc-bytedance-g220a.dts b/arch/arm/boot/dts/aspeed-bmc-bytedance-g220a.dts
index 01dace8f5e5f..0d1fb5ccfd36 100644
--- a/arch/arm/boot/dts/aspeed-bmc-bytedance-g220a.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-bytedance-g220a.dts
@@ -260,6 +260,13 @@
 		spi-max-frequency = <50000000>;
 #include "openbmc-flash-layout-64.dtsi"
 	};
+	flash@1 {
+		status = "okay";
+		label = "alt-bmc";
+		m25p,fast-read;
+		spi-max-frequency = <50000000>;
+#include "openbmc-flash-layout-64-alt.dtsi"
+	};
 };
 
 &spi1 {
@@ -278,6 +285,11 @@
 	status = "okay";
 };
 
+&wdt2 {
+	status = "okay";
+	aspeed,alt-boot;
+};
+
 &gpio {
 	status = "okay";
 	gpio-line-names =
diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts
new file mode 100644
index 000000000000..f973ea883b97
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts
@@ -0,0 +1,756 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2021 Facebook Inc.
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/usb/pd.h>
+
+/ {
+	model = "Facebook Bletchley BMC";
+	compatible = "facebook,bletchley-bmc", "aspeed,ast2600";
+
+	aliases {
+		serial4 = &uart5;
+	};
+
+	chosen {
+		bootargs = "console=ttyS4,57600n8";
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x80000000>;
+	};
+
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc0 0>, <&adc0 1>, <&adc0 2>, <&adc0 3>,
+			<&adc0 4>, <&adc0 5>, <&adc0 6>, <&adc0 7>,
+			<&adc1 0>, <&adc1 1>, <&adc1 2>, <&adc1 3>,
+			<&adc1 4>, <&adc1 5>, <&adc1 6>, <&adc1 7>;
+	};
+
+	spi_gpio: spi-gpio {
+		compatible = "spi-gpio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpio-sck = <&gpio0 ASPEED_GPIO(Z, 3) GPIO_ACTIVE_HIGH>;
+		gpio-mosi = <&gpio0 ASPEED_GPIO(Z, 4) GPIO_ACTIVE_HIGH>;
+		gpio-miso = <&gpio0 ASPEED_GPIO(Z, 5) GPIO_ACTIVE_HIGH>;
+		num-chipselects = <1>;
+		cs-gpios = <&gpio0 ASPEED_GPIO(Z, 0) GPIO_ACTIVE_LOW>;
+
+		tpmdev@0 {
+			compatible = "tcg,tpm_tis-spi";
+			spi-max-frequency = <33000000>;
+			reg = <0>;
+		};
+	};
+
+	switchphy: ethernet-phy@0 {
+		// Fixed link
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		sys_log_id {
+			retain-state-shutdown;
+			default-state = "keep";
+			gpios = <&front_leds 0 GPIO_ACTIVE_HIGH>;
+		};
+		fan0_blue {
+			retain-state-shutdown;
+			default-state = "on";
+			gpios = <&fan_ioexp 8 GPIO_ACTIVE_HIGH>;
+		};
+		fan1_blue {
+			retain-state-shutdown;
+			default-state = "on";
+			gpios = <&fan_ioexp 9 GPIO_ACTIVE_HIGH>;
+		};
+		fan2_blue {
+			retain-state-shutdown;
+			default-state = "on";
+			gpios = <&fan_ioexp 10 GPIO_ACTIVE_HIGH>;
+		};
+		fan3_blue {
+			retain-state-shutdown;
+			default-state = "on";
+			gpios = <&fan_ioexp 11 GPIO_ACTIVE_HIGH>;
+		};
+		fan0_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&fan_ioexp 12 GPIO_ACTIVE_HIGH>;
+		};
+		fan1_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&fan_ioexp 13 GPIO_ACTIVE_HIGH>;
+		};
+		fan2_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&fan_ioexp 14 GPIO_ACTIVE_HIGH>;
+		};
+		fan3_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&fan_ioexp 15 GPIO_ACTIVE_HIGH>;
+		};
+		sled0_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled0_leds 0 GPIO_ACTIVE_LOW>;
+		};
+		sled0_blue {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled0_leds 1 GPIO_ACTIVE_LOW>;
+		};
+		sled1_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled1_leds 0 GPIO_ACTIVE_LOW>;
+		};
+		sled1_blue {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled1_leds 1 GPIO_ACTIVE_LOW>;
+		};
+		sled2_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled2_leds 0 GPIO_ACTIVE_LOW>;
+		};
+		sled2_blue {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled2_leds 1 GPIO_ACTIVE_LOW>;
+		};
+		sled3_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled3_leds 0 GPIO_ACTIVE_LOW>;
+		};
+		sled3_blue {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled3_leds 1 GPIO_ACTIVE_LOW>;
+		};
+		sled4_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled4_leds 0 GPIO_ACTIVE_LOW>;
+		};
+		sled4_blue {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled4_leds 1 GPIO_ACTIVE_LOW>;
+		};
+		sled5_amber {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled5_leds 0 GPIO_ACTIVE_LOW>;
+		};
+		sled5_blue {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&sled5_leds 1 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&mac2 {
+	status = "okay";
+	phy-mode = "rgmii";
+	phy-handle = <&switchphy>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii3_default>;
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&rtc {
+	status = "okay";
+};
+
+&fmc {
+	status = "okay";
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc";
+		spi-max-frequency = <50000000>;
+#include "openbmc-flash-layout-128.dtsi"
+	};
+};
+
+&spi2 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi2_default>;
+
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "pnor";
+		spi-max-frequency = <100000000>;
+	};
+};
+
+&i2c0 {
+	status = "okay";
+	/* TODO: Add ADC INA230 */
+
+	mp5023@40 {
+		compatible = "mps,mp5023";
+		reg = <0x40>;
+	};
+
+	tmp421@4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+
+	sled0_ioexp: pca9539@76 {
+		compatible = "nxp,pca9539";
+		reg = <0x76>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"SLED0_MS_DETECT1","SLED0_VBUS_BMC_EN","SLED0_INA230_ALERT","SLED0_P12V_STBY_ALERT",
+		"SLED0_SSD_ALERT","SLED0_MS_DETECT0","SLED0_RST_CCG5","SLED0_FUSB302_INT",
+		"SLED0_MD_STBY_RESET","SLED0_MD_IOEXP_EN_FAULT","SLED0_MD_DIR","SLED0_MD_DECAY",
+		"SLED0_MD_MODE1","SLED0_MD_MODE2","SLED0_MD_MODE3","power-host0";
+	};
+
+	sled0_leds: pca9552@67 {
+		compatible = "nxp,pca9552";
+		reg = <0x67>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"led-sled0-amber","led-sled0-blue","SLED0_RST_IOEXP","",
+		"","","","",
+		"","","","",
+		"","","","";
+	};
+
+	sled0_fusb302: typec-portc@22 {
+		compatible = "fcs,fusb302";
+		reg = <0x22>;
+
+		connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			power-role = "dual";
+			try-power-role = "sink";
+			data-role = "dual";
+			source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+			sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+					PDO_VAR(3000, 12000, 3000)
+					PDO_PPS_APDO(3000, 11000, 3000)>;
+			op-sink-microwatt = <10000000>;
+		};
+	};
+};
+
+&i2c1 {
+	status = "okay";
+	/* TODO: Add ADC INA230 */
+
+	mp5023@40 {
+		compatible = "mps,mp5023";
+		reg = <0x40>;
+	};
+
+	tmp421@4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+
+	sled1_ioexp: pca9539@76 {
+		compatible = "nxp,pca9539";
+		reg = <0x76>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"SLED1_MS_DETECT1","SLED1_VBUS_BMC_EN","SLED1_INA230_ALERT","SLED1_P12V_STBY_ALERT",
+		"SLED1_SSD_ALERT","SLED1_MS_DETECT0","SLED1_RST_CCG5","SLED1_FUSB302_INT",
+		"SLED1_MD_STBY_RESET","SLED1_MD_IOEXP_EN_FAULT","SLED1_MD_DIR","SLED1_MD_DECAY",
+		"SLED1_MD_MODE1","SLED1_MD_MODE2","SLED1_MD_MODE3","power-host1";
+	};
+
+	sled1_leds: pca9552@67 {
+		compatible = "nxp,pca9552";
+		reg = <0x67>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"led-sled1-amber","led-sled1-blue","SLED1_RST_IOEXP","",
+		"","","","",
+		"","","","",
+		"","","","";
+	};
+
+	sled1_fusb302: typec-portc@22 {
+		compatible = "fcs,fusb302";
+		reg = <0x22>;
+
+		connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			power-role = "dual";
+			try-power-role = "sink";
+			data-role = "dual";
+			source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+			sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+					PDO_VAR(3000, 12000, 3000)
+					PDO_PPS_APDO(3000, 11000, 3000)>;
+			op-sink-microwatt = <10000000>;
+		};
+	};
+};
+
+&i2c1 {
+	status = "okay";
+};
+
+&i2c2 {
+	status = "okay";
+	/* TODO: Add ADC INA230 */
+
+	mp5023@40 {
+		compatible = "mps,mp5023";
+		reg = <0x40>;
+	};
+
+	tmp421@4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+
+	sled2_ioexp: pca9539@76 {
+		compatible = "nxp,pca9539";
+		reg = <0x76>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"SLED2_MS_DETECT1","SLED2_VBUS_BMC_EN","SLED2_INA230_ALERT","SLED2_P12V_STBY_ALERT",
+		"SLED2_SSD_ALERT","SLED2_MS_DETECT0","SLED2_RST_CCG5","SLED2_FUSB302_INT",
+		"SLED2_MD_STBY_RESET","SLED2_MD_IOEXP_EN_FAULT","SLED2_MD_DIR","SLED2_MD_DECAY",
+		"SLED2_MD_MODE1","SLED2_MD_MODE2","SLED2_MD_MODE3","power-host2";
+	};
+
+	sled2_leds: pca9552@67 {
+		compatible = "nxp,pca9552";
+		reg = <0x67>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"led-sled2-amber","led-sled2-blue","SLED2_RST_IOEXP","",
+		"","","","",
+		"","","","",
+		"","","","";
+	};
+
+	sled2_fusb302: typec-portc@22 {
+		compatible = "fcs,fusb302";
+		reg = <0x22>;
+
+		connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			power-role = "dual";
+			try-power-role = "sink";
+			data-role = "dual";
+			source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+			sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+					PDO_VAR(3000, 12000, 3000)
+					PDO_PPS_APDO(3000, 11000, 3000)>;
+			op-sink-microwatt = <10000000>;
+		};
+	};
+};
+
+&i2c3 {
+	status = "okay";
+	/* TODO: Add ADC INA230 */
+
+	mp5023@40 {
+		compatible = "mps,mp5023";
+		reg = <0x40>;
+	};
+
+	tmp421@4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+
+	sled3_ioexp: pca9539@76 {
+		compatible = "nxp,pca9539";
+		reg = <0x76>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"SLED3_MS_DETECT1","SLED3_VBUS_BMC_EN","SLED3_INA230_ALERT","SLED3_P12V_STBY_ALERT",
+		"SLED3_SSD_ALERT","SLED3_MS_DETECT0","SLED3_RST_CCG5","SLED3_FUSB302_INT",
+		"SLED3_MD_STBY_RESET","SLED3_MD_IOEXP_EN_FAULT","SLED3_MD_DIR","SLED3_MD_DECAY",
+		"SLED3_MD_MODE1","SLED3_MD_MODE2","SLED3_MD_MODE3","power-host3";
+	};
+
+	sled3_leds: pca9552@67 {
+		compatible = "nxp,pca9552";
+		reg = <0x67>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"led-sled3-amber","led-sled3-blue","SLED3_RST_IOEXP","",
+		"","","","",
+		"","","","",
+		"","","","";
+	};
+
+	sled3_fusb302: typec-portc@22 {
+		compatible = "fcs,fusb302";
+		reg = <0x22>;
+
+		connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			power-role = "dual";
+			try-power-role = "sink";
+			data-role = "dual";
+			source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+			sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+					PDO_VAR(3000, 12000, 3000)
+					PDO_PPS_APDO(3000, 11000, 3000)>;
+			op-sink-microwatt = <10000000>;
+		};
+	};
+};
+
+&i2c4 {
+	status = "okay";
+	/* TODO: Add ADC INA230 */
+
+	mp5023@40 {
+		compatible = "mps,mp5023";
+		reg = <0x40>;
+	};
+
+	tmp421@4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+
+	sled4_ioexp: pca9539@76 {
+		compatible = "nxp,pca9539";
+		reg = <0x76>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"SLED4_MS_DETECT1","SLED4_VBUS_BMC_EN","SLED4_INA230_ALERT","SLED4_P12V_STBY_ALERT",
+		"SLED4_SSD_ALERT","SLED4_MS_DETECT0","SLED4_RST_CCG5","SLED4_FUSB302_INT",
+		"SLED4_MD_STBY_RESET","SLED4_MD_IOEXP_EN_FAULT","SLED4_MD_DIR","SLED4_MD_DECAY",
+		"SLED4_MD_MODE1","SLED4_MD_MODE2","SLED4_MD_MODE3","power-host4";
+	};
+
+	sled4_leds: pca9552@67 {
+		compatible = "nxp,pca9552";
+		reg = <0x67>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"led-sled4-amber","led-sled4-blue","SLED4_RST_IOEXP","",
+		"","","","",
+		"","","","",
+		"","","","";
+	};
+
+	sled4_fusb302: typec-portc@22 {
+		compatible = "fcs,fusb302";
+		reg = <0x22>;
+
+		connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			power-role = "dual";
+			try-power-role = "sink";
+			data-role = "dual";
+			source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+			sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+					PDO_VAR(3000, 12000, 3000)
+					PDO_PPS_APDO(3000, 11000, 3000)>;
+			op-sink-microwatt = <10000000>;
+		};
+	};
+};
+
+&i2c5 {
+	status = "okay";
+	/* TODO: Add ADC INA230 */
+
+	mp5023@40 {
+		compatible = "mps,mp5023";
+		reg = <0x40>;
+	};
+
+	tmp421@4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+
+	sled5_ioexp: pca9539@76 {
+		compatible = "nxp,pca9539";
+		reg = <0x76>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"SLED5_MS_DETECT1","SLED5_VBUS_BMC_EN","SLED5_INA230_ALERT","SLED5_P12V_STBY_ALERT",
+		"SLED5_SSD_ALERT","SLED5_MS_DETECT0","SLED5_RST_CCG5","SLED5_FUSB302_INT",
+		"SLED5_MD_STBY_RESET","SLED5_MD_IOEXP_EN_FAULT","SLED5_MD_DIR","SLED5_MD_DECAY",
+		"SLED5_MD_MODE1","SLED5_MD_MODE2","SLED5_MD_MODE3","power-host5";
+	};
+
+	sled5_leds: pca9552@67 {
+		compatible = "nxp,pca9552";
+		reg = <0x67>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"led-sled5-amber","led-sled5-blue","SLED5_RST_IOEXP","",
+		"","","","",
+		"","","","",
+		"","","","";
+	};
+
+	sled5_fusb302: typec-portc@22 {
+		compatible = "fcs,fusb302";
+		reg = <0x22>;
+
+		connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			power-role = "dual";
+			try-power-role = "sink";
+			data-role = "dual";
+			source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+			sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+					PDO_VAR(3000, 12000, 3000)
+					PDO_PPS_APDO(3000, 11000, 3000)>;
+			op-sink-microwatt = <10000000>;
+		};
+	};
+};
+
+&i2c6 {
+	status = "okay";
+
+	eeprom@56 {
+		compatible = "atmel,24c64";
+		reg = <0x56>;
+	};
+
+	rtc@51 {
+		compatible = "nxp,pcf85263";
+		reg = <0x51>;
+	};
+};
+
+&i2c7 {
+	status = "okay";
+
+	eeprom@54 {
+		compatible = "atmel,24c64";
+		reg = <0x54>;
+	};
+};
+
+&i2c9 {
+	status = "okay";
+
+	tmp421@4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+};
+
+&i2c10 {
+	status = "okay";
+
+	tmp421@4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+
+	hdc1080@40 {
+		compatible = "ti,hdc1080";
+		reg = <0x40>;
+	};
+
+	front_leds: pca9552@67 {
+		compatible = "nxp,pca9552";
+		reg = <0x67>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"led-fault-identify","power-p5v-stby-good",
+		"power-p1v0-dvdd-good","power-p1v0-avdd-good",
+		"","","","",
+		"","","","",
+		"","","","";
+	};
+};
+
+&i2c12 {
+	status = "okay";
+
+	adm1278@11 {
+		compatible = "adi,adm1278";
+		reg = <0x11>;
+	};
+
+	tmp421@4c {
+		compatible = "ti,tmp421";
+		reg = <0x4c>;
+	};
+
+	tmp421@4d {
+		compatible = "ti,tmp421";
+		reg = <0x4d>;
+	};
+
+	fan_ioexp: pca9552@67 {
+		compatible = "nxp,pca9552";
+		reg = <0x67>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+		"presence-fan0","presence-fan1",
+		"presence-fan2","presence-fan3",
+		"power-fan0-good","power-fan1-good",
+		"power-fan2-good","power-fan3-good",
+		"","","","",
+		"","","","";
+	};
+};
+
+&i2c13 {
+	multi-master;
+	aspeed,hw-timeout-ms = <1000>;
+	status = "okay";
+};
+
+&gpio0 {
+	gpio-line-names =
+	/*A0-A7*/	"","","","","","","","",
+	/*B0-B7*/	"","","SEL_SPI2_MUX","SPI2_MUX1",
+			"SPI2_MUX2","SPI2_MUX3","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"","","","","","","","",
+	/*E0-E7*/	"","","","","","","","",
+	/*F0-F7*/	"","","","","","","","",
+	/*G0-G7*/	"","SWITCH_FRU_MUX","","","","","","",
+	/*H0-H7*/	"presence-riser1","presence-riser2",
+			"presence-sled0","presence-sled1",
+			"presence-sled2","presence-sled3",
+			"presence-sled4","presence-sled5",
+	/*I0-I7*/	"REV_ID0","","REV_ID1","REV_ID2",
+			"","","","",
+	/*J0-J7*/	"","","","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"ALERT_SLED0","ALERT_SLED1",
+			"ALERT_SLED2","ALERT_SLED3",
+			"ALERT_SLED4","ALERT_SLED5",
+			"P12V_AUX_ALERT1","",
+	/*N0-N7*/	"","","","","","","","",
+	/*O0-O7*/	"","","","",
+			"","BOARD_ID0","BOARD_ID1","BOARD_ID2",
+	/*P0-P7*/	"","","","","","","","",
+	/*Q0-Q7*/	"","","","","","","","",
+	/*R0-R7*/	"","","","","","","","",
+	/*S0-S7*/	"","","","BAT_DETECT",
+			"BMC_BT_WP0","BMC_BT_WP1","","",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","RST_BMC_MVL","","",
+			"USB2_SEL0_A","USB2_SEL1_A",
+			"USB2_SEL0_B","USB2_SEL1_B",
+	/*W0-W7*/	"RST_FRONT_IOEXP","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"","","BSM_FLASH_LATCH","","","","","",
+	/*Z0-Z7*/	"","","","","","","","";
+};
+
+&adc0 {
+	vref = <1800>;
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_adc0_default &pinctrl_adc1_default
+		&pinctrl_adc2_default &pinctrl_adc3_default
+		&pinctrl_adc4_default &pinctrl_adc5_default
+		&pinctrl_adc6_default &pinctrl_adc7_default>;
+};
+
+&adc1 {
+	vref = <2500>;
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_adc8_default &pinctrl_adc9_default
+		&pinctrl_adc10_default &pinctrl_adc11_default
+		&pinctrl_adc12_default &pinctrl_adc13_default
+		&pinctrl_adc14_default &pinctrl_adc15_default>;
+};
diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
index f42e2d776ba8..22c06ff7a7ed 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
@@ -280,7 +280,7 @@
 	/*L0-L7*/	"","","","","","","","",
 	/*M0-M7*/	"","","","","","","","",
 	/*N0-N7*/	"","","","","","","","",
-	/*O0-O7*/	"","","","","","","","",
+	/*O0-O7*/	"","","","usb-power","","","","",
 	/*P0-P7*/	"","","","","led-pcieslot-power","","","",
 	/*Q0-Q7*/	"","","regulator-standby-faulted","","","","","",
 	/*R0-R7*/	"bmc-tpm-reset","power-chassis-control","power-chassis-good","","","I2C_FLASH_MICRO_N","","",
@@ -292,6 +292,12 @@
 	/*X0-X7*/	"","","","","","","","",
 	/*Y0-Y7*/	"","","","","","","","",
 	/*Z0-Z7*/   "","","","","","","","";
+
+	usb_power {
+		gpio-hog;
+		gpios = <ASPEED_GPIO(O, 3) GPIO_ACTIVE_LOW>;
+		output-high;
+	};
 };
 
 &i2c0 {
@@ -1881,6 +1887,11 @@
 
 &i2c12 {
 	status = "okay";
+
+	tpm@2e {
+		compatible = "nuvoton,npct75x", "tcg,tpm-tis-i2c";
+		reg = <0x2e>;
+	};
 };
 
 &i2c13 {
@@ -2375,6 +2386,10 @@
 	};
 };
 
+&ehci0 {
+	status = "okay";
+};
+
 &ehci1 {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
index 866f32cdccea..c47974219832 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
@@ -275,6 +275,12 @@
 		output-high;
 		line-name = "I2C3_MUX_OE_N";
 	};
+
+	usb_power {
+		gpio-hog;
+		gpios = <ASPEED_GPIO(O, 3) GPIO_ACTIVE_LOW>;
+		output-high;
+	};
 };
 
 &emmc_controller {
@@ -2061,6 +2067,11 @@
 &i2c12 {
 	status = "okay";
 
+	tpm@2e {
+		compatible = "nuvoton,npct75x";
+		reg = <0x2e>;
+	};
+
 	eeprom@50 {
 		compatible = "atmel,24c64";
 		reg = <0x50>;
diff --git a/arch/arm/boot/dts/aspeed-bmc-tyan-s7106.dts b/arch/arm/boot/dts/aspeed-bmc-tyan-s7106.dts
index 68f332ee1886..aff27c1d4b06 100644
--- a/arch/arm/boot/dts/aspeed-bmc-tyan-s7106.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-tyan-s7106.dts
@@ -3,6 +3,7 @@
 
 #include "aspeed-g5.dtsi"
 #include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 
 / {
 	model = "Tyan S7106 BMC";
@@ -127,8 +128,23 @@
 	status = "okay";
 };
 
+&uart_routing {
+	status = "okay";
+};
+
 &vuart {
 	status = "okay";
+
+	/* We enable the VUART here, but leave it in a state that does
+	 * not interfere with the SuperIO. The goal is to have both the
+	 * VUART and the SuperIO available and decide at runtime whether
+	 * the VUART should actually be used. For that reason, configure
+	 * an "invalid" IO address and an IRQ that is not used by the
+	 * BMC.
+	 */
+
+	aspeed,lpc-io-reg = <0xffff>;
+	aspeed,lpc-interrupts = <15 IRQ_TYPE_LEVEL_HIGH>;
 };
 
 &lpc_ctrl {
@@ -213,6 +229,30 @@
 	nct7802@28 {
 		compatible = "nuvoton,nct7802";
 		reg = <0x28>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		channel@0 { /* LTD */
+			reg = <0>;
+		};
+
+		channel@1 { /* RTD1 */
+			reg = <1>;
+			sensor-type = "temperature";
+			temperature-mode = "thermistor";
+		};
+
+		channel@2 { /* RTD2 */
+			reg = <2>;
+			sensor-type = "temperature";
+			temperature-mode = "thermistor";
+		};
+
+		channel@3 { /* RTD3 */
+			reg = <3>;
+			sensor-type = "temperature";
+		};
 	};
 
 	/* Also connected to:
diff --git a/arch/arm/boot/dts/aspeed-bmc-tyan-s8036.dts b/arch/arm/boot/dts/aspeed-bmc-tyan-s8036.dts
new file mode 100644
index 000000000000..708ee78e4b83
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-tyan-s8036.dts
@@ -0,0 +1,470 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+#include "aspeed-g5.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	model = "Tyan S8036 BMC";
+	compatible = "tyan,s8036-bmc", "aspeed,ast2500";
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,115200 earlycon";
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		p2a_memory: region@987f0000 {
+			no-map;
+			reg = <0x987f0000 0x00010000>; /* 64KB */
+		};
+
+		vga_memory: framebuffer@9f000000 {
+			no-map;
+			reg = <0x9f000000 0x01000000>; /* 16M */
+		};
+
+		gfx_memory: framebuffer {
+			size = <0x01000000>; /* 16M */
+			alignment = <0x01000000>;
+			compatible = "shared-dma-pool";
+			reusable;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		identify {
+			gpios = <&gpio ASPEED_GPIO(A, 2) GPIO_ACTIVE_LOW>;
+		};
+
+		heartbeat {
+			gpios = <&gpio ASPEED_GPIO(E, 7) GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
+			<&adc 4>, <&adc 5>, <&adc 6>, <&adc 7>,
+			<&adc 8>, <&adc 9>, <&adc 10>, <&adc 11>,
+			<&adc 12>, <&adc 13>, <&adc 14>;
+	};
+
+	iio-hwmon-battery {
+		compatible = "iio-hwmon";
+		io-channels = <&adc 15>;
+	};
+};
+
+&fmc {
+	status = "okay";
+	flash@0 {
+		label = "bmc";
+		status = "okay";
+		m25p,fast-read;
+#include "openbmc-flash-layout.dtsi"
+	};
+};
+
+&spi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1_default>;
+
+	flash@0 {
+		status = "okay";
+		label = "pnor";
+		m25p,fast-read;
+	};
+};
+
+&uart1 {
+	/* Rear RS-232 connector */
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd1_default
+			&pinctrl_rxd1_default>;
+};
+
+&uart2 {
+	/* RS-232 connector on header */
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd2_default
+			&pinctrl_rxd2_default>;
+};
+
+&uart3 {
+	/* Alternative to vuart to internally connect (route) to uart1
+	 * when vuart cannot be used due to BIOS limitations.
+	 */
+	status = "okay";
+};
+
+&uart4 {
+	/* Alternative to vuart to internally connect (route) to the
+	 * external port usually used by uart1 when vuart cannot be
+	 * used due to BIOS limitations.
+	 */
+	status = "okay";
+};
+
+&uart5 {
+	/* BMC "debug" (console) UART; connected to RS-232 connector
+	 * on header; selectable via jumpers as alternative to uart2
+	 */
+	status = "okay";
+};
+
+&uart_routing {
+	status = "okay";
+};
+
+&vuart {
+	status = "okay";
+
+	/* We enable the VUART here, but leave it in a state that does
+	 * not interfere with the SuperIO. The goal is to have both the
+	 * VUART and the SuperIO available and decide at runtime whether
+	 * the VUART should actually be used. For that reason, configure
+	 * an "invalid" IO address and an IRQ that is not used by the
+	 * BMC.
+	 */
+	aspeed,lpc-io-reg = <0xffff>;
+	aspeed,lpc-interrupts = <15 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&lpc_ctrl {
+	status = "okay";
+};
+
+&p2a {
+	status = "okay";
+	memory-region = <&p2a_memory>;
+};
+
+&lpc_snoop {
+	status = "okay";
+	snoop-ports = <0x80>;
+};
+
+&adc {
+	status = "okay";
+};
+
+&vhub {
+	status = "okay";
+};
+
+&pwm_tacho {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_default
+			&pinctrl_pwm1_default
+			&pinctrl_pwm3_default
+			&pinctrl_pwm4_default>;
+
+	/* CPU fan */
+	fan@0 {
+		reg = <0x00>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x00>;
+	};
+
+	/* PWM group for chassis fans #1, #2, #3 and #4 */
+	fan@2 {
+		reg = <0x03>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x02>;
+	};
+
+	fan@3 {
+		reg = <0x03>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x03>;
+	};
+
+	fan@4 {
+		reg = <0x03>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x04>;
+	};
+
+	fan@5 {
+		reg = <0x03>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x05>;
+	};
+
+	/* PWM group for chassis fans #5 and #6  */
+	fan@6 {
+		reg = <0x04>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x06>;
+	};
+
+	fan@7 {
+		reg = <0x04>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x07>;
+	};
+};
+
+&i2c0 {
+	/* Directly connected to Sideband-Temperature Sensor Interface (APML) */
+	status = "okay";
+};
+
+&i2c1 {
+	/* Directly connected to IPMB HDR. */
+	status = "okay";
+};
+
+&i2c2 {
+	status = "okay";
+
+	/* BMC EEPROM, incl. mainboard FRU */
+	eeprom@50 {
+		compatible = "atmel,24c256";
+		reg = <0x50>;
+	};
+	/* Also connected to:
+	 * - BCM5720
+	 * - FPGA
+	 * - FAN HDR
+	 * - FPIO HDR
+	 */
+};
+
+&i2c3 {
+	status = "okay";
+
+	/* PSU1 FRU @ 0xA0 */
+	eeprom@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+	};
+
+	/* PSU2 FRU @ 0xA2 */
+	eeprom@51 {
+		compatible = "atmel,24c02";
+		reg = <0x51>;
+	};
+
+	/* PSU1 @ 0xB0 */
+	power-supply@58 {
+		compatible = "pmbus";
+		reg = <0x58>;
+	};
+
+	/* PSU2 @ 0xB2 */
+	power-supply@59 {
+		compatible = "pmbus";
+		reg = <0x59>;
+	};
+
+};
+
+&i2c4 {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+	/* Hardware monitor with temperature sensors */
+	nct7802@28 {
+		compatible = "nuvoton,nct7802";
+		reg = <0x28>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		channel@0 { /* LTD */
+			reg = <0>;
+			status = "okay";
+		};
+
+		channel@1 { /* RTD1 */
+			reg = <1>;
+			status = "okay";
+			sensor-type = "temperature";
+			temperature-mode = "thermistor";
+		};
+
+		channel@2 { /* RTD2 */
+			reg = <2>;
+			status = "okay";
+			sensor-type = "temperature";
+			temperature-mode = "thermistor";
+		};
+
+		channel@3 { /* RTD3 */
+			reg = <3>;
+			status = "okay";
+			sensor-type = "temperature";
+		};
+	};
+
+	/* Also connected to:
+	 * - PCA9544
+	 * - CLK BUFF
+	 * - OCP FRU
+	 */
+};
+
+&i2c6 {
+	status = "okay";
+	/* Connected to:
+	 * - PCA9548 @0xE0
+	 * - PCA9548 @0xE2
+	 * - PCA9544 @0xE4
+	 */
+};
+
+&i2c7 {
+	status = "okay";
+
+	/* Connected to:
+	 * - PCH SMBUS #4
+	 */
+};
+
+&i2c8 {
+	status = "okay";
+
+	/* Not connected */
+};
+
+&mac0 {
+	status = "okay";
+	use-ncsi;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii1_default>;
+};
+
+&mac1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii2_default &pinctrl_mdio2_default>;
+};
+
+&ibt {
+	status = "okay";
+};
+
+&kcs1 {
+	status = "okay";
+	aspeed,lpc-io-reg = <0xca8>;
+};
+
+&kcs3 {
+	status = "okay";
+	aspeed,lpc-io-reg = <0xca2>;
+};
+
+/* Enable BMC VGA output to show an early (pre-BIOS) boot screen */
+&gfx {
+	status = "okay";
+	memory-region = <&gfx_memory>;
+};
+
+/* We're following the GPIO naming as defined at
+ * https://github.com/openbmc/docs/blob/master/designs/device-tree-gpio-naming.md.
+ *
+ * Notes on led-identify and id-button:
+ * - A physical button is connected to id-button which
+ *   triggers the clock on a D flip-flop. The /Q output of the
+ *   flip-flop drives its D input.
+ * - The flip-flop's Q output drives led-identify which is
+ *   connected to LEDs.
+ * - With that, every button press toggles the LED between on and off.
+ *
+ * Notes on power-, reset- and nmi- button and control:
+ * - The -button signals can be used to monitor physical buttons.
+ * - The -control signals can be used to actuate the specific
+ *   operation.
+ * - In hardware, the -button signals are connected to the -control
+ *   signals through drivers with the -control signals being
+ *   protected through diodes.
+ */
+&gpio {
+	status = "okay";
+	gpio-line-names =
+	/*A0*/		"",
+	/*A1*/		"",
+	/*A2*/		"led-identify", /* in/out: BMC_CHASSIS_ID_LED_L */
+	/*A3*/		"",
+	/*A4*/		"",
+	/*A5*/		"",
+	/*A6*/		"",
+	/*A7*/		"",
+	/*B0-B7*/	"","","","","","","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0*/		"",
+	/*D1*/		"",
+	/*D2*/		"power-chassis-good", /* in: PWR_GOOD_LED -- Check if this is Z3?*/
+	/*D3*/		"platform-reset", /* in: RESET_LED_L */
+	/*D4*/		"",
+	/*D5*/		"",
+	/*D6*/		"",
+	/*D7*/		"",
+	/*E0*/		"power-button", /* in: BMC_SYS_MON_PWR_BTN_L */
+	/*E1*/		"power-chassis-control", /* out: BMC_ASSERT_PWR_BTN */
+	/*E2*/		"reset-button", /* in: BMC_SYS_MOS_RST_BTN_L*/
+	/*E3*/		"reset-control", /* out: BMC_ASSERT_RST_BTN */
+	/*E4*/		"nmi-button", /* in: BMC_SYS_MON_NMI_BTN_L */
+	/*E5*/		"nmi-control", /* out: BMC_ASSERT_NMI_BTN */
+	/*E6*/		"TSI_RESERT",
+	/*E7*/		"led-heartbeat", /* out: BMC_GPIOE7 */
+	/*F0*/		"",
+	/*F1*/		"clear-cmos-control", /* out: BMC_ASSERT_CLR_CMOS_L */
+	/*F2*/		"",
+	/*F3*/		"",
+	/*F4*/		"led-fault", /* out: BMC_HWM_FAULT_LED_L */
+	/*F5*/		"BMC_SYS_FAULT_LED_L",
+	/*F6*/		"BMC_ASSERT_BIOS_WP_L",
+	/*F7*/		"",
+	/*G0-G7*/	"","","","","","","","",
+	/*H0-H7*/	"","","","","","","","",
+	/*I0-I7*/	"","","","","","","","",
+	/*J0-J7*/	"","","","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"","","","","","","","",
+	/*N0-N7*/	"","","","","","","","",
+	/*O0-O7*/	"","","","","","","","",
+	/*P0-P7*/	"","","","","","","","",
+	/*Q0*/		"",
+	/*Q1*/		"",
+	/*Q2*/		"",
+	/*Q3*/		"",
+	/*Q4*/		"",
+	/*Q5*/		"",
+	/*Q6*/		"id-button", /* in: BMC_CHASSIS_ID_BTN_L */
+	/*Q7*/		"",
+	/*R0-R7*/	"","","","","","","","",
+	/*S0-S7*/	"","","","","","","","",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","","","","","","","",
+	/*W0-W7*/	"","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"","","","","","","","",
+	/*Z0-Z2*/	"","","",
+	/*Z3*/		"post-complete", /* BMC_SYS_MON_PWROK */
+	/*Z4-Z7*/	"","","","",
+	/*AA0*/		"",
+	/*AA1*/		"",
+	/*AA2*/		"",
+	/*AA3*/		"",
+	/*AA4*/		"",
+	/*AA5*/		"",
+	/*AA6*/		"",
+	/*AA7*/		"BMC_ASSERT_BMC_READY",
+	/*AB0*/		"BMC_SPD_SEL",
+	/*AB1-AB7*/	"","","","","","","";
+};
diff --git a/arch/arm/boot/dts/aspeed-bmc-vegman-n110.dts b/arch/arm/boot/dts/aspeed-bmc-vegman-n110.dts
new file mode 100644
index 000000000000..24319267d550
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-vegman-n110.dts
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (C) 2021 YADRO
+/dts-v1/;
+
+#include "aspeed-bmc-vegman.dtsi"
+
+/ {
+	model = "YADRO VEGMAN N110 BMC";
+	compatible = "yadro,vegman-n110-bmc", "aspeed,ast2500";
+};
+
+&gpio {
+	status = "okay";
+	gpio-line-names =
+	/*A0-A7*/	"CHASSIS_INTRUSION","CASE_OPEN_FAULT_RST","","","SPEAKER_BMC","FM_FORCE_BMC_UPDATE","","",
+	/*B0-B7*/	"","","","","","","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"","","","","","","","",
+	/*E0-E7*/	"RESET_BUTTON","RESET_OUT","POWER_BUTTON","POWER_OUT","","","","",
+	/*F0-F7*/	"NMI_OUT","PCIE_NIC_ALERT","","","SKT0_FAULT_LED","","RST_RGMII_PHYRST_DNP","",
+	/*G0-G7*/	"CPU_ERR2","CPU_CATERR","PCH_BMC_THERMTRIP","","IRQ_NMI_EVENT","","","",
+	/*H0-H7*/	"PWRGD_P3V3_RISER1","PWRGD_P3V3_RISER2","PWRGD_P3V3_RISER3","","MIO_BIOS_SEL","_SPI_FLASH_HOLD","_SPI_FLASH_WP","FM_240VA_STATUS",
+	/*I0-I7*/	"","","","","","","","",
+	/*J0-J7*/	"","","","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"","","","","","","","",
+	/*N0-N7*/	"","","","","","","","",
+	/*O0-O7*/	"","","","","","","","_SPI2_BMC_CS_SEL",
+	/*P0-P7*/	"","","","","","","","",
+	/*Q0-Q7*/	"","","","","","","","",
+	/*R0-R7*/	"_SPI_RMM4_LITE_CS","","","","","","","",
+	/*S0-S7*/	"_SPI2_BMC_CS1","","","IRQ_SML0_ALERT_MUX","FP_LED_STATUS_GREEN","FP_LED_STATUS_AMBER","FP_ID_LED","",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","","","","","","","",
+	/*W0-W7*/	"","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"SIO_S3","SIO_S5","","SIO_ONCONTROL","","","","",
+	/*Z0-Z7*/	"FM_BMC_PWR_BTN","SIO_POWER_GOOD","FM_BMC_PWRBTN_OUT","FM_BMC_PCH_SCI_LPC","","","","",
+	/*AA0-AA7*/	"","IRQ_SML1_PMBUS_ALERT","FM_PVCCIN_CPU0_PWR_IN_ALERT","FM_PVCCIN_CPU1_PWR_IN_ALERT","BMC_SYS_PWR_FAULT","BMC_SYS_PWR_OK","SMI","POST_COMPLETE",
+	/*AB0-AB7*/	"FM_CPU_BMCINIT","NMI_BUTTON","ID_BUTTON","PS_PWROK","","","","",
+	/*AC0-AC7*/	"","","","","","","","";
+};
+
+&sgpio {
+	ngpios = <80>;
+	bus-frequency = <2000000>;
+	status = "okay";
+	/* SGPIO lines. even: input, odd: output */
+	gpio-line-names =
+	/*A0-A7*/	"CPU1_PRESENCE","","CPU1_THERMTRIP","","CPU1_VRHOT","","CPU1_FIVR_FAULT","","CPU1_MEM_ABCD_VRHOT","","CPU1_MEM_EFGH_VRHOT","","","","","",
+	/*B0-B7*/	"CPU1_MISMATCH","","CPU1_MEM_THERM_EVENT","","CPU2_PRESENCE","","CPU2_THERMTRIP","","CPU2_VRHOT","","CPU2_FIVR_FAULT","","CPU2_MEM_ABCD_VRHOT","","CPU2_MEM_EFGH_VRHOT","",
+	/*C0-C7*/	"","","","","CPU2_MISMATCH","","CPU2_MEM_THERM_EVENT","","","","","","","","","",
+	/*D0-D7*/	"","","","","","","","","","","","","","","","",
+	/*E0-E7*/	"","","","","","","","","","","","","","","","",
+	/*F0-F7*/	"SGPIO_PLD_MINOR_REV_BIT0","","SGPIO_PLD_MINOR_REV_BIT1","","SGPIO_PLD_MINOR_REV_BIT2","","SGPIO_PLD_MINOR_REV_BIT3","","SGPIO_PLD_MAJOR_REV_BIT0","","SGPIO_PLD_MAJOR_REV_BIT1","","SGPIO_PLD_MAJOR_REV_BIT2","","SGPIO_PLD_MAJOR_REV_BIT3","",
+	/*G0-G7*/	"MAIN_PLD_MINOR_REV_BIT0","","MAIN_PLD_MINOR_REV_BIT1","","MAIN_PLD_MINOR_REV_BIT2","","MAIN_PLD_MINOR_REV_BIT3","","MAIN_PLD_MAJOR_REV_BIT0","","MAIN_PLD_MAJOR_REV_BIT1","","MAIN_PLD_MAJOR_REV_BIT2","","MAIN_PLD_MAJOR_REV_BIT3","",
+	/*H0-H7*/	"","","","","","","","","","","","","","","","",
+	/*I0-I7*/	"","","","","","","","","","","","","","","","",
+	/*J0-J7*/	"","","","","","","","","","","","","","","","";
+};
+
+&i2c11 {
+	/* SMB_BMC_MGMT_LVC3 */
+	gpio@21 {
+		compatible = "nxp,pcal9535";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+		/*IO0.0-0.7*/	"", "", "", "", "", "", "PE_PCH_SCR_CLKREQ", "",
+		/*IO1.0-1.7*/	"", "PE_PCH_MEZ_PRSNT", "PE_PCH_MEZ_PRSNT_", "NIC_4_PE_PRSNT", "NIC_3_PE_PRSNT", "NIC_2_PE_PRSNT", "NIC_1_PE_PRSNT", "";
+	};
+	gpio@27 {
+		compatible = "nxp,pca9698";
+		reg = <0x27>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+		/*IO0.0-0.7*/	"PWRGD_PS_PWROK", "PWRGD_DSW_PWROK", "PWRGD_P5V_AUX", "PWRGD_P3V3_AUX", "PWRGD_P5V", "PWRGD_P3V3", "PWRGD_P1V8_PCH_AUX", "PWRGD_PCH_PVNN_AUX",
+		/*IO1.0-1.7*/	"PWRGD_P1V05_PCH_AUX", "PWRGD_PCH_AUX_VRS", "PWRGD_PVCCIN_CPU0", "PWRGD_PVCCSA_CPU0", "PWRGD_PVCCIO_CPU0", "PWRGD_PVMCP_CPU0", "PWRGD_P1V0_CPU0", "PWRGD_PVDDQ_ABC_CPU0",
+		/*IO2.0-2.7*/	"PWRGD_PVPP_ABC_CPU0", "PWRGD_PVTT_ABC_CPU0", "PWRGD_PVDDQ_DEF_CPU0", "PWRGD_PVPP_DEF_CPU0", "PWRGD_PVTT_DEF_CPU0", "", "", "",
+		/*IO3.0-3.7*/	"", "", "", "", "", "", "", "",
+		/*IO4.0-4.7*/	"", "", "", "", "", "", "", "";
+	};
+};
+
+&i2c13 {
+	/* SMB_PCIE2_STBY_LVC3 */
+	mux-expa@73 {
+		compatible = "nxp,pca9545";
+		reg = <0x73>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+	};
+	mux-sata@71 {
+		compatible = "nxp,pca9543";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+	};
+};
+
+&i2c2 {
+	/* SMB_PCIE_STBY_LVC3 */
+	mux-expb@71 {
+		compatible = "nxp,pca9545";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+	};
+};
+
+&pwm_tacho {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default
+			 &pinctrl_pwm2_default &pinctrl_pwm3_default
+			 &pinctrl_pwm4_default &pinctrl_pwm5_default>;
+
+	fan@0 {
+		reg = <0x00>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x00 0x06>;
+	};
+	fan@1 {
+		reg = <0x01>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x01 0x08>;
+	};
+	fan@2 {
+		reg = <0x02>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x02 0x09>;
+	};
+	fan@3 {
+		reg = <0x03>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x03 0x0A>;
+	};
+	fan@4 {
+		reg = <0x04>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x04 0x0B>;
+	};
+	fan@5 {
+		reg = <0x05>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x05>;
+	};
+};
diff --git a/arch/arm/boot/dts/aspeed-bmc-vegman-rx20.dts b/arch/arm/boot/dts/aspeed-bmc-vegman-rx20.dts
new file mode 100644
index 000000000000..ebbb68b55559
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-vegman-rx20.dts
@@ -0,0 +1,255 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (C) 2021 YADRO
+/dts-v1/;
+
+#include "aspeed-bmc-vegman.dtsi"
+
+/ {
+	model = "YADRO VEGMAN Rx20 BMC";
+	compatible = "yadro,vegman-rx20-bmc", "aspeed,ast2500";
+
+	leds {
+		compatible = "gpio-leds";
+
+		temp_alarm {
+			label = "temp:red:status";
+			default-state = "off";
+			gpios = <&gpio ASPEED_GPIO(E, 4) GPIO_ACTIVE_LOW>;
+		};
+
+		temp_ok {
+			label = "temp:green:status";
+			default-state = "off";
+			gpios = <&gpio ASPEED_GPIO(E, 5) GPIO_ACTIVE_LOW>;
+		};
+
+		psu_fault {
+			label = "psu:red:status";
+			default-state = "off";
+			gpios = <&gpio ASPEED_GPIO(E, 6) GPIO_ACTIVE_LOW>;
+		};
+
+		psu_ok {
+			label = "psu:green:status";
+			default-state = "off";
+			gpios = <&gpio ASPEED_GPIO(E, 7) GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&gpio {
+	status = "okay";
+	gpio-line-names =
+	/*A0-A7*/	"CASE_OPEN_DNP","CASE_OPEN_FAULT_RST_DNP","BEZEL_ON_PWR_P3V3","PWM_PWRGD_EXP_EN","SPEAKER_BMC","FM_FORCE_BMC_UPDATE","","",
+	/*B0-B7*/	"","","","","","","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"","","","","","","","",
+	/*E0-E7*/	"RESET_BUTTON","RESET_OUT","POWER_BUTTON","POWER_OUT","LED_TEMP_STATUS_R","LED_TEMP_STATUS_G","LED_PWR_STATUS_R","LED_PWR_STATUS_G",
+	/*F0-F7*/	"NMI_OUT","CPU1_DISABLE_COD","","","SKT0_FAULT_LED_DNP","SKT1_FAULT_LED_DNP","RST_RGMII_PHYRST_DNP","",
+	/*G0-G7*/	"CPU_ERR2","CPU_CATERR","PCH_BMC_THERMTRIP","SPI_BMC_BOOT_HD","IRQ_NMI_EVENT","SPI_BMC_BOOT_WP","SPI_BMC_BOOT_WP1","",
+	/*H0-H7*/	"PWRGD_P3V3_RISER1","PWRGD_P3V3_RISER2","PWRGD_P3V3_RISER3","","MIO_BIOS_SEL","_SPI_FLASH_HOLD","_SPI_FLASH_WP","FM_240VA_STATUS",
+	/*I0-I7*/	"","","","","","","","",
+	/*J0-J7*/	"","","","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"SEL_FLASH_SOFT","STATUS_SEL_BMC","","","BMC_WDT_P","ID_BUTTON","PS_PWROK","",
+	/*N0-N7*/	"","","","","","","","",
+	/*O0-O7*/	"","","","","","","","",
+	/*P0-P7*/	"","","","","","","SPI_BIOS_ACTIVE_FLASH_SEL","STATUS_SEL_BIOS",
+	/*Q0-Q7*/	"","","","","","","","",
+	/*R0-R7*/	"_SPI_BMC_BOOT_CS1","","","","","","","",
+	/*S0-S7*/	"_SPI2_BMC_CS1","RSR_A_SMBEXP_RST_INT","RSR_B_SMBEXP_RST_INT","IRQ_SML0_ALERT_MUX","FP_LED_STATUS_GREEN","FP_LED_STATUS_AMBER","FP_ID_LED","",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","","","","","","","",
+	/*W0-W7*/	"","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"SIO_S3","SIO_S5","","SIO_ONCONTROL","","","","",
+	/*Z0-Z7*/	"FM_BMC_PWR_BTN","SIO_POWER_GOOD","FM_BMC_PWRBTN_OUT","FM_BMC_PCH_SCI_LPC","","","","",
+	/*AA0-AA7*/	"CPU_CLK_MUX_SEL","IRQ_SML1_PMBUS_ALERT","FM_PVCCIN_CPU0_PWR_IN_ALERT","FM_PVCCIN_CPU1_PWR_IN_ALERT","BMC_SYS_PWR_FAULT","BMC_SYS_PWR_OK","SMI","POST_COMPLETE",
+	/*AB0-AB7*/	"FM_CPU_BMCINIT","NMI_BUTTON","BMC_WDT_RST1","BMC_WDT_RST2","","","","",
+	/*AC0-AC7*/	"","","","","","","","";
+};
+
+&sgpio {
+	ngpios = <80>;
+	bus-frequency = <2000000>;
+	status = "okay";
+	/* SGPIO lines. even: input, odd: output */
+	gpio-line-names =
+	/*A0-A7*/	"CPU1_PRESENCE","","CPU1_THERMTRIP","","CPU1_VRHOT","","CPU1_FIVR_FAULT","","CPU1_MEM_ABCD_VRHOT","","CPU1_MEM_EFGH_VRHOT","","","","","",
+	/*B0-B7*/	"CPU1_MISMATCH","","CPU1_MEM_THERM_EVENT","","CPU2_PRESENCE","","CPU2_THERMTRIP","","CPU2_VRHOT","","CPU2_FIVR_FAULT","","CPU2_MEM_ABCD_VRHOT","","CPU2_MEM_EFGH_VRHOT","",
+	/*C0-C7*/	"","","","","CPU2_MISMATCH","","CPU2_MEM_THERM_EVENT","","","","","","","","","",
+	/*D0-D7*/	"","","","","","","","","","","","","","","","",
+	/*E0-E7*/	"","","","","","","","","","","","","","","","",
+	/*F0-F7*/	"SGPIO_PLD_MINOR_REV_BIT0","","SGPIO_PLD_MINOR_REV_BIT1","","SGPIO_PLD_MINOR_REV_BIT2","","SGPIO_PLD_MINOR_REV_BIT3","","SGPIO_PLD_MAJOR_REV_BIT0","","SGPIO_PLD_MAJOR_REV_BIT1","","SGPIO_PLD_MAJOR_REV_BIT2","","SGPIO_PLD_MAJOR_REV_BIT3","",
+	/*G0-G7*/	"MAIN_PLD_MINOR_REV_BIT0","","MAIN_PLD_MINOR_REV_BIT1","","MAIN_PLD_MINOR_REV_BIT2","","MAIN_PLD_MINOR_REV_BIT3","","MAIN_PLD_MAJOR_REV_BIT0","","MAIN_PLD_MAJOR_REV_BIT1","","MAIN_PLD_MAJOR_REV_BIT2","","MAIN_PLD_MAJOR_REV_BIT3","",
+	/*H0-H7*/	"","","","","","","","","","","","","","","","",
+	/*I0-I7*/	"","","","","","","","","","","","","","","","",
+	/*J0-J7*/	"","","","","","","","","","","","","","","","";
+};
+
+&i2c11 {
+	/* SMB_BMC_MGMT_LVC3 */
+	gpio@21 {
+		compatible = "nxp,pcal9535";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+		/*IO0.0-0.7*/	"ETH3_CLK_REQ", "ETH2_CLK_REQ", "RSR_A_PCIE_X16_2_PRSNT", "RSR_B_PCIE_X16_2_PRSNT", "", "RSR_B_PCIE_X8_3_PRSNT", "RSR_B_PCIE_X8_4_PRSNT", "RSR_B_PCIE_X16_PRSNT_N",
+		/*IO1.0-1.7*/	"RSR_B_PCIE_X8_2_PRSNT", "RSR_B_PCIE_X8_1_PRSNT", "NIC_1_PE_BUF_PRSNT", "RSR_A_PCIE_X16_PRSNT", "RSR_A_PCIE_X8_3_PRSNT", "RSR_A_PCIE_X8_2_PRSNT", "RSR_A_PCIE_X8_1_PRSNT_N", "";
+	};
+	gpio@23 {
+		compatible = "nxp,pcal9535";
+		reg = <0x23>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+		/*IO0.0-0.7*/	"FM_LINK_WIDTH_ID0", "FM_LINK_WIDTH_ID0", "FM_LINK_WIDTH_ID0", "FM_LINK_WIDTH_ID0", "FM_LINK_WIDTH_ID0", "", "", "",
+		/*IO1.0-1.7*/	"", "", "", "", "", "", "", "";
+	};
+	gpio@27 {
+		compatible = "nxp,pca9698";
+		reg = <0x27>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+		/*IO0.0-0.7*/	"PWRGD_PS_PWROK", "PWRGD_DSW_PWROK", "PWRGD_P5V_AUX", "PWRGD_P3V3_AUX", "PWRGD_P5V", "PWRGD_P3V3", "PWRGD_P1V8_PCH_AUX", "PWRGD_PCH_PVNN_AUX",
+		/*IO1.0-1.7*/	"PWRGD_P1V05_PCH_AUX", "PWRGD_PCH_AUX_VRS", "PWRGD_PVCCIN_CPU0", "PWRGD_PVCCSA_CPU0", "PWRGD_PVCCIO_CPU0", "PWRGD_PVMCP_CPU0", "PWRGD_P1V0_CPU0", "PWRGD_PVDDQ_ABC_CPU0",
+		/*IO2.0-2.7*/	"PWRGD_PVPP_ABC_CPU0", "PWRGD_PVTT_ABC_CPU0", "PWRGD_PVDDQ_DEF_CPU0", "PWRGD_PVPP_DEF_CPU0", "PWRGD_PVTT_DEF_CPU0", "PWRGD_PVCCIN_CPU1", "PWRGD_PVCCSA_CPU1", "PWRGD_PVCCIO_CPU1",
+		/*IO3.0-3.7*/	"PWRGD_PVMCP_CPU1", "PWRGD_P1V0_CPU1", "PWRGD_PVDDQ_GHJ_CPU1", "PWRGD_PVPP_GHJ_CPU1", "PWRGD_PVTT_GHJ_CPU1", "PWRGD_PVDDQ_KLM_CPU1", "PWRGD_PVPP_KLM_CPU1", "PWRGD_PVTT_KLM_CPU1",
+		/*IO4.0-4.7*/	"PCH_PWR_RESET_N", "FM_BOARD_SKU_ID0", "FM_BOARD_SKU_ID1", "FM_BOARD_SKU_ID2", "FM_BOARD_SKU_ID3", "FM_BOARD_SKU_ID4", "FM_BOARD_REV_ID0", "FM_BOARD_REV_ID1";
+	};
+	gpio@39 {
+		compatible = "nxp,pca9554";
+		reg = <0x39>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+		/*IO0.0-0.7*/	"FAN_FAULT_0", "FAN_FAULT_1", "FAN_FAULT_2", "FAN_FAULT_3", "FAN_FAULT_4", "FAN_FAULT_5", "FAN_FAULT_6", "";
+	};
+};
+
+&i2c13 {
+	/* SMB_PCIE2_STBY_LVC3 */
+	mux-expa@70 {
+		compatible = "nxp,pca9548";
+		reg = <0x70>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+
+		i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			rsra-mux@72 {
+				compatible = "nxp,pca9548";
+				reg = <0x72>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				i2c@7 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <7>;
+					at24@50 {
+						compatible = "atmel,24c64";
+						reg = <0x50>;
+						pagesize = <32>;
+						size = <8192>;
+						address-width = <16>;
+					};
+				};
+			};
+		};
+	};
+	mux-sata@71 {
+		compatible = "nxp,pca9543";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+	};
+};
+
+&i2c2 {
+	/* SMB_PCIE_STBY_LVC3 */
+	mux-expb@71 {
+		compatible = "nxp,pca9548";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+
+		i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			rsrb-mux@72 {
+				compatible = "nxp,pca9548";
+				reg = <0x72>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				i2c@7 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <7>;
+					at24@50 {
+						compatible = "atmel,24c64";
+						reg = <0x50>;
+						pagesize = <32>;
+						size = <8192>;
+						address-width = <16>;
+					};
+				};
+			};
+			at24@50 {
+				compatible = "atmel,24c64";
+				reg = <0x50>;
+				pagesize = <32>;
+				size = <8192>;
+				address-width = <16>;
+			};
+		};
+	};
+};
+
+&pwm_tacho {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default
+			 &pinctrl_pwm2_default &pinctrl_pwm3_default
+			 &pinctrl_pwm4_default &pinctrl_pwm5_default
+			 &pinctrl_pwm6_default>;
+
+	fan@0 {
+		reg = <0x00>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x00 0x07>;
+	};
+	fan@1 {
+		reg = <0x01>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x01 0x08>;
+	};
+	fan@2 {
+		reg = <0x02>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x02 0x09>;
+	};
+	fan@3 {
+		reg = <0x03>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x03 0x0A>;
+	};
+	fan@4 {
+		reg = <0x04>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x04 0x0B>;
+	};
+	fan@5 {
+		reg = <0x05>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x05 0x0C>;
+	};
+	fan@6 {
+		reg = <0x06>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x06 0x0D>;
+	};
+};
diff --git a/arch/arm/boot/dts/aspeed-bmc-vegman-sx20.dts b/arch/arm/boot/dts/aspeed-bmc-vegman-sx20.dts
new file mode 100644
index 000000000000..e36ee4704994
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-vegman-sx20.dts
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (C) 2021 YADRO
+/dts-v1/;
+
+#include "aspeed-bmc-vegman.dtsi"
+
+/ {
+	model = "YADRO VEGMAN Sx20 BMC";
+	compatible = "yadro,vegman-sx20-bmc", "aspeed,ast2500";
+};
+
+&gpio {
+	status = "okay";
+	gpio-line-names =
+	/*A0-A7*/	"CHASSIS_INTRUSION","CASE_OPEN_FAULT_RST","","","SPEAKER_BMC","FM_FORCE_BMC_UPDATE","","",
+	/*B0-B7*/	"","","","","","","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"","","","","","","","",
+	/*E0-E7*/	"RESET_BUTTON","RESET_OUT","POWER_BUTTON","POWER_OUT","","","","",
+	/*F0-F7*/	"NMI_OUT","CPU1_DISABLE_COD","","","SKT0_FAULT_LED","SKT1_FAULT_LED","RST_RGMII_PHYRST_DNP","",
+	/*G0-G7*/	"CPU_ERR2","CPU_CATERR","PCH_BMC_THERMTRIP","","IRQ_NMI_EVENT","","","",
+	/*H0-H7*/	"PWRGD_P3V3_RISER1","PWRGD_P3V3_RISER2","PWRGD_P3V3_RISER3","","MIO_BIOS_SEL","_SPI_FLASH_HOLD","_SPI_FLASH_WP","FM_240VA_STATUS",
+	/*I0-I7*/	"","","","","","","","",
+	/*J0-J7*/	"","","","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"","","","","BMC_GPU_RISER_ID1","BMC_GPU_RISER_ID0","","",
+	/*N0-N7*/	"","","","","","","","",
+	/*O0-O7*/	"","","","","","","","_SPI2_BMC_CS_SEL",
+	/*P0-P7*/	"","P12V_HDDS_A_EN","P12V_HDDS_B_EN","P5V_HDDS_A_EN","PWRGD_P5V_HDDS_A","P5V_HDDS_B_EN","PWRGD_P5V_HDDS_B","",
+	/*Q0-Q7*/	"","","","","","","","",
+	/*R0-R7*/	"_SPI_RMM4_LITE_CS","","","","","","","",
+	/*S0-S7*/	"_SPI2_BMC_CS1","","","IRQ_SML0_ALERT_MUX","FP_LED_STATUS_GREEN","FP_LED_STATUS_AMBER","FP_ID_LED","",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","","","","","","","",
+	/*W0-W7*/	"","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"SIO_S3","SIO_S5","","SIO_ONCONTROL","","","","",
+	/*Z0-Z7*/	"FM_BMC_PWR_BTN","SIO_POWER_GOOD","FM_BMC_PWRBTN_OUT","FM_BMC_PCH_SCI_LPC","","","","",
+	/*AA0-AA7*/	"CPU_CLK_MUX_SEL","IRQ_SML1_PMBUS_ALERT","FM_PVCCIN_CPU0_PWR_IN_ALERT","FM_PVCCIN_CPU1_PWR_IN_ALERT","BMC_SYS_PWR_FAULT","BMC_SYS_PWR_OK","SMI","POST_COMPLETE",
+	/*AB0-AB7*/	"FM_CPU_BMCINIT","NMI_BUTTON","ID_BUTTON","PS_PWROK","","","","",
+	/*AC0-AC7*/	"","","","","","","","";
+};
+
+&sgpio {
+	ngpios = <80>;
+	bus-frequency = <2000000>;
+	status = "okay";
+	/* SGPIO lines. even: input, odd: output */
+	gpio-line-names =
+	/*A0-A7*/	"CPU1_PRESENCE","","CPU1_THERMTRIP","","CPU1_VRHOT","","CPU1_FIVR_FAULT","","CPU1_MEM_ABCD_VRHOT","","CPU1_MEM_EFGH_VRHOT","","","","","",
+	/*B0-B7*/	"CPU1_MISMATCH","","CPU1_MEM_THERM_EVENT","","CPU2_PRESENCE","","CPU2_THERMTRIP","","CPU2_VRHOT","","CPU2_FIVR_FAULT","","CPU2_MEM_ABCD_VRHOT","","CPU2_MEM_EFGH_VRHOT","",
+	/*C0-C7*/	"","","","","CPU2_MISMATCH","","CPU2_MEM_THERM_EVENT","","","","","","","","","",
+	/*D0-D7*/	"","","","","","","","","","","","","","","","",
+	/*E0-E7*/	"","","","","","","","","","","","","","","","",
+	/*F0-F7*/	"SGPIO_PLD_MINOR_REV_BIT0","","SGPIO_PLD_MINOR_REV_BIT1","","SGPIO_PLD_MINOR_REV_BIT2","","SGPIO_PLD_MINOR_REV_BIT3","","SGPIO_PLD_MAJOR_REV_BIT0","","SGPIO_PLD_MAJOR_REV_BIT1","","SGPIO_PLD_MAJOR_REV_BIT2","","SGPIO_PLD_MAJOR_REV_BIT3","",
+	/*G0-G7*/	"MAIN_PLD_MINOR_REV_BIT0","","MAIN_PLD_MINOR_REV_BIT1","","MAIN_PLD_MINOR_REV_BIT2","","MAIN_PLD_MINOR_REV_BIT3","","MAIN_PLD_MAJOR_REV_BIT0","","MAIN_PLD_MAJOR_REV_BIT1","","MAIN_PLD_MAJOR_REV_BIT2","","MAIN_PLD_MAJOR_REV_BIT3","",
+	/*H0-H7*/	"","","","","","","","","","","","","","","","",
+	/*I0-I7*/	"","","","","","","","","","","","","","","","",
+	/*J0-J7*/	"","","","","","","","","","","","","","","","";
+};
+
+&i2c11 {
+	/* SMB_BMC_MGMT_LVC3 */
+	gpio@21 {
+		compatible = "nxp,pcal9535";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+		/*IO0.0-0.7*/	"", "", "CPU1_PE3_0_SLOT_PRSNT", "", "CPU1_PE1_GPU_PRSNT", "CPU1_PE3_1_SLOT_PRSNT", "PE_PCH_MEZ_PRSNT", "CPU0_PE3_1_SLOT_PRSNT",
+		/*IO1.0-1.7*/	"CPU0_PE1_GPU_PRSNT", "CPU0_PE2_NVME2_PRSNT", "CPU1_PE2_NVME3_PRSNT", "CPU1_PE2_SLOT_PRSNT", "CPU1_PE2_NVME4_PRSNT", "", "CPU0_PE2_NVME1_PRSNT", "CPU0_PE3_0_RAID_PRSNT";
+	};
+	gpio@27 {
+		compatible = "nxp,pca9698";
+		reg = <0x27>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+		/*IO0.0-0.7*/	"PWRGD_PS_PWROK", "PWRGD_DSW_PWROK", "PWRGD_P5V_AUX", "PWRGD_P3V3_AUX", "PWRGD_P5V", "PWRGD_P3V3", "PWRGD_P1V8_PCH_AUX", "PWRGD_PCH_PVNN_AUX",
+		/*IO1.0-1.7*/	"PWRGD_P1V05_PCH_AUX", "PWRGD_PCH_AUX_VRS", "PWRGD_PVCCIN_CPU0", "PWRGD_PVCCSA_CPU0", "PWRGD_PVCCIO_CPU0", "PWRGD_PVMCP_CPU0", "PWRGD_P1V0_CPU0", "PWRGD_PVDDQ_ABC_CPU0",
+		/*IO2.0-2.7*/	"PWRGD_PVPP_ABC_CPU0", "PWRGD_PVTT_ABC_CPU0", "PWRGD_PVDDQ_DEF_CPU0", "PWRGD_PVPP_DEF_CPU0", "PWRGD_PVTT_DEF_CPU0", "PWRGD_PVCCIN_CPU1", "PWRGD_PVCCSA_CPU1", "PWRGD_PVCCIO_CPU1",
+		/*IO3.0-3.7*/	"PWRGD_PVMCP_CPU1", "PWRGD_P1V0_CPU1", "PWRGD_PVDDQ_GHJ_CPU1", "PWRGD_PVPP_GHJ_CPU1", "PWRGD_PVTT_GHJ_CPU1", "PWRGD_PVDDQ_KLM_CPU1", "PWRGD_PVPP_KLM_CPU1", "PWRGD_PVTT_KLM_CPU1",
+		/*IO4.0-4.7*/	"PWRGD_P5V_HDDS_A_R", "PWRGD_P5V_HDDS_B_R", "", "", "", "", "", "";
+	};
+};
+
+&i2c13 {
+	/* SMB_PCIE2_STBY_LVC3 */
+	mux-expa@73 {
+		compatible = "nxp,pca9545";
+		reg = <0x73>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+	};
+	mux-sata@71 {
+		compatible = "nxp,pca9543";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+	};
+};
+
+&i2c2 {
+	/* SMB_PCIE_STBY_LVC3 */
+	mux-expb@71 {
+		compatible = "nxp,pca9545";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+	};
+};
+
+&pwm_tacho {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default
+			 &pinctrl_pwm2_default &pinctrl_pwm3_default
+			 &pinctrl_pwm4_default &pinctrl_pwm5_default
+			 &pinctrl_pwm6_default>;
+
+	fan@0 {
+		reg = <0x00>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x00>;
+	};
+	fan@1 {
+		reg = <0x01>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x01>;
+	};
+	fan@2 {
+		reg = <0x02>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x02>;
+	};
+	fan@3 {
+		reg = <0x03>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x03>;
+	};
+	fan@4 {
+		reg = <0x04>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x04>;
+	};
+	fan@5 {
+		reg = <0x05>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x05>;
+	};
+	fan@6 {
+		reg = <0x06>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x06>;
+	};
+};
diff --git a/arch/arm/boot/dts/aspeed-bmc-vegman.dtsi b/arch/arm/boot/dts/aspeed-bmc-vegman.dtsi
new file mode 100644
index 000000000000..1a5b25b2ea29
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-vegman.dtsi
@@ -0,0 +1,311 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (C) 2021 YADRO
+
+#include "aspeed-g5.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+	aliases {
+		serial4 = &uart5;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,115200 earlyprintk";
+	};
+
+	memory@80000000 {
+		reg = <0x80000000 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		video_engine_memory: jpegbuffer {
+			size = <0x02000000>;	/* 32M */
+			alignment = <0x01000000>;
+			compatible = "shared-dma-pool";
+			reusable;
+		};
+
+		ramoops@9eff0000{
+			compatible = "ramoops";
+			reg = <0x9eff0000 0x10000>;
+			record-size = <0x2000>;
+			console-size = <0x2000>;
+		};
+	};
+
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
+			<&adc 4>, <&adc 5>, <&adc 6>, <&adc 7>,
+			<&adc 8>, <&adc 9>, <&adc 10>, <&adc 11>,
+			<&adc 12>, <&adc 13>, <&adc 14>, <&adc 15>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		identify {
+			label = "platform:blue:indicator";
+			linux,default-trigger = "heartbeat";
+			gpios = <&gpio ASPEED_GPIO(S, 6) GPIO_ACTIVE_LOW>;
+		};
+
+		status_amber {
+			label = "platform:red:status";
+			default-state = "off";
+			gpios = <&gpio ASPEED_GPIO(S, 5) GPIO_ACTIVE_LOW>;
+		};
+
+		status_green {
+			label = "platform:green:status";
+			default-state = "off";
+			gpios = <&gpio ASPEED_GPIO(S, 4) GPIO_ACTIVE_LOW>;
+		};
+
+		power_fault {
+			label = "platform:red:power";
+			default-state = "off";
+			gpios = <&gpio ASPEED_GPIO(AA, 4) GPIO_ACTIVE_LOW>;
+		};
+
+		power_ok {
+			label = "platform:green:power";
+			default-state = "off";
+			gpios = <&gpio ASPEED_GPIO(AA, 5) GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	beeper {
+		compatible = "pwm-beeper";
+		pwms = <&timer 5 1000000 0>;
+	};
+};
+
+&fmc {
+	status = "okay";
+	flash@0 {
+		status = "okay";
+		label = "bmc";
+		m25p,fast-read;
+#include "openbmc-flash-layout-64.dtsi"
+	};
+};
+
+&spi2 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi2ck_default
+			&pinctrl_spi2miso_default
+			&pinctrl_spi2mosi_default
+			&pinctrl_spi2cs0_default>;
+	flash@0 {
+		status = "okay";
+		label = "bios";
+		m25p,fast-read;
+	};
+};
+
+&mac0 {
+	status = "okay";
+	use-ncsi;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii1_default>;
+};
+
+&mac1 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii2_default &pinctrl_mdio2_default>;
+
+	phy-mode = "rgmii";
+	phy-handle = <&phy>;
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy: ethernet-phy@1 {
+			/* KSZ9131 */
+			compatible = "ethernet-phy-id0022.1640";
+			reg = <1>;
+
+			micrel,led-mode = <0>;
+		};
+	};
+};
+
+&vhub {
+	status = "okay";
+};
+
+&adc {
+	status = "okay";
+};
+
+&video {
+	status = "okay";
+	memory-region = <&video_engine_memory>;
+};
+
+&sdmmc {
+	status = "okay";
+};
+
+&sdhci1 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sd2_default>;
+	disable-wp;
+};
+
+&timer {
+	fttmr010,pwm-outputs = <5>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_timer5_default>;
+	#pwm-cells = <3>;
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd1_default
+			&pinctrl_rxd1_default
+			&pinctrl_nrts1_default
+			&pinctrl_ndtr1_default
+			&pinctrl_ndsr1_default
+			&pinctrl_ncts1_default
+			&pinctrl_ndcd1_default
+			&pinctrl_nri1_default>;
+};
+
+&uart5 {
+	status = "okay";
+};
+
+&vuart {
+	status = "okay";
+};
+
+&kcs3 {
+	aspeed,lpc-io-reg = <0xCA2>;
+	status = "okay";
+};
+
+&kcs4 {
+	aspeed,lpc-io-reg = <0xCA4>;
+	status = "okay";
+};
+
+&lpc_snoop {
+	snoop-ports = <0x80>;
+	status = "okay";
+};
+
+&uart_routing {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <>;
+};
+
+&uart3 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <>;
+};
+
+&uart4 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <>;
+};
+
+&i2c0 {
+	/* SMB_IPMB_STBY_LVC3 */
+	multi-master;
+	status = "okay";
+};
+
+&i2c1 {
+	/* SMB_CHASSENSOR_STBY_LVC3 */
+	status = "okay";
+};
+
+&i2c2 {
+	/* SMB_PCIE_STBY_LVC3 */
+	status = "okay";
+};
+
+&i2c3 {
+	/* SMB_HOST_STBY_LVC3 */
+	multi-master;
+	status = "okay";
+};
+
+&i2c4 {
+	/* BMC_PMBUS2_STBY */
+	status = "okay";
+};
+
+&i2c5 {
+	/* SMB_SMLINK0_STBY_LVC3 */
+	bus-frequency = <1000000>;
+	multi-master;
+	status = "okay";
+};
+
+&i2c6 {
+	/* SMB_TEMPSENSOR_STBY_LVC3 */
+	multi-master;
+	status = "okay";
+};
+
+&i2c7 {
+	/* SMB_SM_PMB1_SML1_STBY_LVC3 */
+	multi-master;
+	status = "okay";
+};
+
+&i2c9 {
+	/* SMB_BMC_ETH3_LVC3 */
+	status = "okay";
+};
+
+&i2c10 {
+	/* SMB_BMC_ETH2_LVC3 */
+	status = "okay";
+};
+
+&i2c11 {
+	/* SMB_BMC_MGMT_LVC3 */
+	status = "okay";
+
+	at24@50 {
+		compatible = "atmel,24c64";
+		reg = <0x50>;
+		pagesize = <32>;
+		size = <8192>;
+		address-width = <16>;
+	};
+};
+
+&i2c12 {
+	/* SMB_BMC_FAULT_EXP_LVC3 */
+	status = "okay";
+};
+
+&i2c13 {
+	/* SMB_PCIE2_STBY_LVC3 */
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi
index b313a1cf5f73..f14dace34c5a 100644
--- a/arch/arm/boot/dts/aspeed-g4.dtsi
+++ b/arch/arm/boot/dts/aspeed-g4.dtsi
@@ -381,6 +381,7 @@
 					compatible = "aspeed,ast2400-ibt-bmc";
 					reg = <0x140 0x18>;
 					interrupts = <8>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index c7049454c7cb..7495f93c5069 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -446,6 +446,7 @@
 					compatible = "aspeed,ast2500-kcs-bmc-v2";
 					reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>;
 					interrupts = <8>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 
@@ -453,6 +454,7 @@
 					compatible = "aspeed,ast2500-kcs-bmc-v2";
 					reg = <0x28 0x1>, <0x34 0x1>, <0x40 0x1>;
 					interrupts = <8>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 
@@ -460,6 +462,7 @@
 					compatible = "aspeed,ast2500-kcs-bmc-v2";
 					reg = <0x2c 0x1>, <0x38 0x1>, <0x44 0x1>;
 					interrupts = <8>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 
@@ -467,6 +470,7 @@
 					compatible = "aspeed,ast2500-kcs-bmc-v2";
 					reg = <0x114 0x1>, <0x118 0x1>, <0x11c 0x1>;
 					interrupts = <8>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 
@@ -507,6 +511,7 @@
 					compatible = "aspeed,ast2500-ibt-bmc";
 					reg = <0x140 0x18>;
 					interrupts = <8>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 			};
diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi
index 5106a424f1ce..c32e87fad4dc 100644
--- a/arch/arm/boot/dts/aspeed-g6.dtsi
+++ b/arch/arm/boot/dts/aspeed-g6.dtsi
@@ -384,6 +384,11 @@
 				status = "disabled";
 			};
 
+			sbc: secure-boot-controller@1e6f2000 {
+				compatible = "aspeed,ast2600-sbc";
+				reg = <0x1e6f2000 0x1000>;
+			};
+
 			gpio0: gpio@1e780000 {
 				#gpio-cells = <2>;
 				gpio-controller;
@@ -520,6 +525,7 @@
 					compatible = "aspeed,ast2500-kcs-bmc-v2";
 					reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>;
 					interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					kcs_chan = <1>;
 					status = "disabled";
 				};
@@ -528,6 +534,7 @@
 					compatible = "aspeed,ast2500-kcs-bmc-v2";
 					reg = <0x28 0x1>, <0x34 0x1>, <0x40 0x1>;
 					interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 
@@ -535,6 +542,7 @@
 					compatible = "aspeed,ast2500-kcs-bmc-v2";
 					reg = <0x2c 0x1>, <0x38 0x1>, <0x44 0x1>;
 					interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 
@@ -542,6 +550,7 @@
 					compatible = "aspeed,ast2500-kcs-bmc-v2";
 					reg = <0x114 0x1>, <0x118 0x1>, <0x11c 0x1>;
 					interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 
@@ -581,6 +590,7 @@
 					compatible = "aspeed,ast2600-ibt-bmc";
 					reg = <0x140 0x18>;
 					interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
 					status = "disabled";
 				};
 			};
diff --git a/arch/arm/boot/dts/openbmc-flash-layout-64-alt.dtsi b/arch/arm/boot/dts/openbmc-flash-layout-64-alt.dtsi
new file mode 100644
index 000000000000..650525867561
--- /dev/null
+++ b/arch/arm/boot/dts/openbmc-flash-layout-64-alt.dtsi
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Bytedance.
+ */
+
+partitions {
+	compatible = "fixed-partitions";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	u-boot@0 {
+		reg = <0x0 0xe0000>; // 896KB
+		label = "alt-u-boot";
+	};
+
+	u-boot-env@e0000 {
+		reg = <0xe0000 0x20000>; // 128KB
+		label = "alt-u-boot-env";
+	};
+
+	kernel@100000 {
+		reg = <0x100000 0x900000>; // 9MB
+		label = "alt-kernel";
+	};
+
+	rofs@a00000 {
+		reg = <0xa00000 0x2000000>; // 32MB
+		label = "alt-rofs";
+	};
+
+	rwfs@6000000 {
+		reg = <0x2a00000 0x1600000>; // 22MB
+		label = "alt-rwfs";
+	};
+};