ARM: dts: aspeed: Add Microsoft Olympus BMC

Olympus is a Microsoft OCP platform equipped with Aspeed 1250 or
2400 BMC SoC.
Signed-off-by: Hongwei Zhang <hongweiz@ami.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>

arch/arm/boot/dts/Makefile

@@ -1271,6 +1271,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-facebook-yamp.dtb \
 	aspeed-bmc-intel-s2600wf.dtb \
 	aspeed-bmc-lenovo-hr630.dtb \
+	aspeed-bmc-microsoft-olympus.dtb \
 	aspeed-bmc-opp-lanyang.dtb \
 	aspeed-bmc-opp-palmetto.dtb \
 	aspeed-bmc-opp-romulus.dtb \

arch/arm/boot/dts/aspeed-bmc-microsoft-olympus.dts

+//SPDX-License-Identifier: GPL-2.0+
+
+/dts-v1/;
+
+#include "aspeed-g4.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+	model = "Olympus BMC";
+	compatible = "microsoft,olympus-bmc", "aspeed,ast2400";
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,115200 earlyprintk";
+	};
+
+	memory@40000000 {
+		reg = <0x40000000 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		vga_memory: framebuffer@5f000000 {
+			no-map;
+			reg = <0x5f000000 0x01000000>; /* 16M */
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		bmc_heartbeat {
+			gpios = <&gpio ASPEED_GPIO(B, 0) GPIO_ACTIVE_LOW>;
+		};
+
+		power_green {
+			gpios = <&gpio ASPEED_GPIO(U, 2) GPIO_ACTIVE_HIGH>;
+		};
+
+		power_amber {
+			gpios = <&gpio ASPEED_GPIO(U, 3) GPIO_ACTIVE_HIGH>;
+		};
+
+		identify {
+			gpios = <&gpio ASPEED_GPIO(Q, 5) GPIO_ACTIVE_LOW>;
+		};
+
+		fault {
+			gpios = <&gpio ASPEED_GPIO(A, 1) 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 {
+	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>;
+};
+
+&fmc {
+	status = "okay";
+
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc";
+#include "openbmc-flash-layout.dtsi"
+	};
+};
+
+&spi {
+	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_rgmii1_default &pinctrl_mdio1_default>;
+};
+
+&i2c0 {
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+
+	tmp421@4c {
+		compatible = "ti,tmp421";
+		reg = <0x4c>;
+	};
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&i2c3 {
+	status = "okay";
+};
+
+&i2c4 {
+	status = "okay";
+	clock-frequency = <100000>;
+};
+
+&i2c5 {
+	status = "okay";
+};
+
+&i2c6 {
+	status = "okay";
+
+	tmp421@4c {
+		compatible = "ti,tmp421";
+		reg = <0x4c>;
+	};
+};
+
+&i2c7 {
+	status = "okay";
+};
+
+&vuart {
+	status = "okay";
+};
+
+&wdt2 {
+	status = "okay";
+};
+
+&lpc_ctrl {
+	status = "okay";
+};
+
+&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>;
+	};
+
+};