Message-ID: <20250917180428.810751-3-rebecca@bsdio.com>
Date: Wed, 17 Sep 2025 12:04:26 -0600
From: Rebecca Cran <rebecca@...io.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Joel Stanley <joel@....id.au>,
	Andrew Jeffery <andrew@...econstruct.com.au>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-aspeed@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Cc: Rebecca Cran <rebecca@...io.com>
Subject: [PATCH v2 2/2] ARM: dts: aspeed: add device tree for ASRock Rack ALTRAD8 BMC

The ALTRAD8 BMC is an Aspeed AST2500-based BMC for the ASRock Rack
ALTRAD8UD-1L2T and ALTRAD8UD2-1L2Q boards.

Signed-off-by: Rebecca Cran <rebecca@...io.com>
---
 arch/arm/boot/dts/aspeed/Makefile                      |   1 +
 arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-altrad8.dts | 633 ++++++++++++++++++++
 2 files changed, 634 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index aba7451ab749..6bffb7130839 100644
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -9,6 +9,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-ampere-mtjefferson.dtb \
 	aspeed-bmc-ampere-mtmitchell.dtb \
 	aspeed-bmc-arm-stardragon4800-rep2.dtb \
+	aspeed-bmc-asrock-altrad8.dtb \
 	aspeed-bmc-asrock-e3c246d4i.dtb \
 	aspeed-bmc-asrock-e3c256d4i.dtb \
 	aspeed-bmc-asrock-romed8hm3.dtb \
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-altrad8.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-altrad8.dts
new file mode 100644
index 000000000000..ae3ddf5f6eb7
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-altrad8.dts
@@ -0,0 +1,633 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+#include "aspeed-g5.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/i2c/i2c.h>
+
+/ {
+	model = "ASRock ALTRAD8 BMC";
+	compatible = "asrock,altrad8-bmc", "aspeed,ast2500";
+
+	aliases {
+		serial4 = &uart5;
+		i2c50 = &nvme1;
+		i2c51 = &pcie4;
+		i2c52 = &pcie5;
+		i2c53 = &pcie6;
+		i2c54 = &pcie7;
+		i2c55 = &nvme3;
+		i2c56 = &nvme2;
+		i2c57 = &nvme0;
+		i2c58 = &nvme4;
+		i2c59 = &nvme5;
+		i2c60 = &nvme6;
+		i2c61 = &nvme7;
+		i2c62 = &nvme8;
+		i2c63 = &nvme9;
+		i2c64 = &nvme10;
+		i2c65 = &nvme11;
+	};
+
+	chosen {
+		stdout-path = "uart5:115200n8";
+	};
+
+	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";
+
+		led-system-fault {
+			gpios = <&gpio ASPEED_GPIO(G,3) GPIO_ACTIVE_LOW>;
+			label = "platform:red:fault";
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_FAULT;
+		};
+
+		led-enclosure-identify {
+			gpios = <&gpio ASPEED_GPIO(G,0) GPIO_ACTIVE_LOW>;
+			label = "platform:green:indicator";
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_INDICATOR;
+		};
+
+		led-fan1-fault {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&pca0 0 GPIO_ACTIVE_LOW>;
+			label = "fan1:red:fault";
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_FAULT;
+		};
+
+		led-fan2-fault {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&pca0 1 GPIO_ACTIVE_LOW>;
+			label = "fan2:red:fault";
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_FAULT;
+		};
+
+		led-fan3-fault {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&pca0 2 GPIO_ACTIVE_LOW>;
+			label = "fan3:red:fault";
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_FAULT;
+		};
+
+		led-fan4-fault {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&pca0 3 GPIO_ACTIVE_LOW>;
+			label = "fan4:red:fault";
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_FAULT;
+		};
+
+		led-fan5-fault {
+			retain-state-shutdown;
+			default-state = "off";
+			gpios = <&pca0 4 GPIO_ACTIVE_LOW>;
+			label = "fan5:red:fault";
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_FAULT;
+		};
+	};
+
+	memory@...00000 {
+		reg = <0x80000000 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		gfx_memory: framebuffer {
+			compatible = "shared-dma-pool";
+			size = <0x01000000>;
+			alignment = <0x01000000>;
+			reusable;
+		};
+
+		vga_memory: framebuffer@...00000 {
+			no-map;
+			reg = <0x9f000000 0x01000000>; /* 16M */
+		};
+
+		video_engine_memory: jpegbuffer {
+			compatible = "shared-dma-pool";
+			size = <0x02000000>;	/* 32M */
+			alignment = <0x01000000>;
+			reusable;
+		};
+	};
+};
+
+&adc {
+	status = "okay";
+};
+
+&fmc {
+	flash@0 {
+		label = "bmc";
+		m25p,fast-read;
+		spi-max-frequency = <50000000>;
+#include "openbmc-flash-layout-64.dtsi"
+	};
+};
+
+&gfx {
+	memory-region = <&gfx_memory>;
+};
+
+&gpio {
+	gpio-line-names =
+	/*A0-A7*/	"","","","BMC_READY","","","","",
+	/*B0-B7*/	"i2c-backup-sel","","","","","","","host0-shd-ack-n",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"POWER_BUTTON","POWER_OUT","RESET_BUTTON",
+			"host0-sysreset-n","","","SYS_PWR_GD","",
+	/*E0-E7*/	"","s0-vrd1-vddq0123-fault-l",
+			"s0-vrd1-vddq4567-fault-l","s0-vrd0-vddc-fault-l",
+			"s0-vrd3-p0v75-fault-l","","","",
+	/*F0-F7*/	"","","SYS_ATX_PSON_L","","","","","",
+	/*G0-G7*/	"id-led","id-button","","","UBOOT_READY",\
+			"BMC_SALT2_L","","",
+	/*H0-H7*/	"PS_PWROK","uart1-mode1","uart2-mode1","uart3-mode1",
+			"uart4-mode1","","BMC_HB_LED","",
+	/*I0-I7*/	"","","","","","","","",
+	/*J0-J7*/	"s0-hightemp-n","","","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"","","","","","s0-spi-auth-fail-n","","",
+	/*N0-N7*/	"","","","","","","","",
+	/*O0-O7*/	"","","","","","","","",
+	/*P0-P7*/	"","","CPLD_DISABLE_BMC","","","","","",
+	/*Q0-Q7*/	"","","ext-hightemp-n","","","","",
+			"CHASSIS_INTRUSION",
+	/*R0-R7*/	"","","EXT_HIGHTEMP_L","spi0-program-sel","",
+			"HWM_BAT_EN","","",
+	/*S0-S7*/	"s0-vr-hot-n","","","BMC_SYSRESET_L","","","","",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","","","","","","","",
+	/*W0-W7*/	"","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"SIOS3","SIOS5","SIOPWREQ","SIOONCTRL","","","","",
+	/*Z0-Z7*/	"","SIOPWRGD","","s0-rtc-lock","","","","",
+	/*AA0-AA7*/	"RTC_INT","","","","","PMBUS_SEL_N","","",
+	/*AB0-AB7*/	"host0-reboot-ack-n","s0-sys-auth-failure-n",
+			"","","","","","",
+	/*AC0-AC7*/	"s0-fault-alert","host0-ready","s0-overtemp-n",
+			"","bmc-ok","host0-special-boot","presence-cpu0",
+			"host0-shd-req-n";
+};
+
+&i2c0 {
+	bus-frequency = <100000>;
+
+	ipmb@10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+
+};
+
+&i2c1 {
+	bus-frequency = <100000>;
+
+	i2c-mux1@73 {
+		compatible = "nxp,pca9548";
+		reg = <0x73>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+
+		nvme1: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		pcie4: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		pcie5: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		pcie6: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+
+		pcie7: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <4>;
+		};
+
+		nvme3: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <5>;
+		};
+
+		nvme2: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <6>;
+		};
+
+		nvme0: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <7>;
+		};
+	};
+
+	i2c-mux2@75 {
+		compatible = "nxp,pca9548";
+		reg = <0x75>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-mux-idle-disconnect;
+
+		nvme4: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		nvme5: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		nvme6: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		nvme7: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+
+		nvme8: i2c@4 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <4>;
+		};
+
+		nvme9: i2c@5 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <5>;
+		};
+
+		nvme10: i2c@6 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <6>;
+		};
+
+		nvme11: i2c@7 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <7>;
+		};
+	};
+};
+
+&i2c2 {
+	bus-frequency = <100000>;
+
+	smpro@4f {
+		compatible = "ampere,smpro";
+		reg = <0x4f>;
+	};
+};
+
+&i2c3 {
+	// PSU FRU
+	eeprom@38 {
+		compatible = "atmel,24c02";
+		reg = <0x38>;
+	};
+};
+
+&i2c4 {
+	bus-frequency = <100000>;
+
+	hardware-monitor@29 {
+		compatible = "nuvoton,nct7802";
+		reg = <0x29>;
+
+		#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 = "thermal-diode";
+		};
+	};
+
+	temperature-sensor@4c {
+		compatible = "nuvoton,w83773g";
+		reg = <0x4c>;
+	};
+};
+
+&i2c5 {
+	status = "okay";
+};
+
+&i2c6 {
+	bus-frequency = <100000>;
+
+	rtc@6f {
+		compatible = "isil,isl1208";
+		reg = <0x6f>;
+	};
+};
+
+&i2c7 {
+	bus-frequency = <100000>;
+
+	// BMC FRU
+	eeprom@57 {
+		compatible = "atmel,24c128";
+		reg = <0x57>;
+
+		nvmem-layout {
+			compatible = "fixed-layout";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			eth0_macaddress: macaddress@...8 {
+				reg = <0x3f88 6>;
+			};
+
+			eth1_macaddress: macaddress@...0 {
+				reg = <0x3f80 6>;
+			};
+		};
+	};
+};
+
+&i2c8 {
+	bus-frequency = <100000>;
+
+	pca0: gpio@1c {
+		compatible = "nxp,pca9557";
+		reg = <0x1c>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio@0 {
+			reg = <0>;
+		};
+
+		gpio@1 {
+			reg = <1>;
+		};
+
+		gpio@2 {
+			reg = <2>;
+		};
+
+		gpio@3 {
+			reg = <3>;
+		};
+
+		gpio@4 {
+			reg = <4>;
+		};
+
+		gpio@5 {
+			reg = <5>;
+		};
+
+		gpio@6 {
+			reg = <6>;
+		};
+
+		gpio@7 {
+			reg = <7>;
+		};
+	};
+};
+
+&i2c9 {
+	status = "okay";
+};
+
+&i2c10 {
+	status = "okay";
+};
+
+&i2c11 {
+	status = "okay";
+};
+
+&i2c12 {
+	status = "okay";
+};
+
+&i2c13 {
+	bus-frequency = <100000>;
+
+	ssif-bmc@10 {
+		compatible = "ssif-bmc";
+		reg = <0x10>;
+	};
+};
+
+// Connected to host Intel X550 (ALTRAD8UD-1L2T) or
+// Broadcom BCM57414 (ALTRAD8UD2-1L2Q) interface
+&mac0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii1_default>;
+
+	clocks = <&syscon ASPEED_CLK_GATE_MAC1CLK>,
+		 <&syscon ASPEED_CLK_MAC1RCLK>;
+	clock-names = "MACCLK", "RCLK";
+
+	use-ncsi;
+
+	nvmem-cells = <&eth0_macaddress>;
+	nvmem-cell-names = "mac-address";
+};
+
+// Connected to Realtek RTL8211E
+&mac1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii2_default &pinctrl_mdio2_default>;
+
+	nvmem-cells = <&eth1_macaddress>;
+	nvmem-cell-names = "mac-address";
+};
+
+&pinctrl {
+	aspeed,external-nodes = <&gfx &lhc>;
+};
+
+&pwm_tacho {
+	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
+			&pinctrl_pwm7_default>;
+
+	fan@0 {
+		reg = <0x00>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x00 0x08>;
+	};
+
+	fan@1 {
+		reg = <0x01>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x01 0x09>;
+	};
+
+	fan@2 {
+		reg = <0x02>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x02 0x0a>;
+	};
+
+	fan@3 {
+		reg = <0x03>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x03 0x0b>;
+	};
+
+	fan@4 {
+		reg = <0x04>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x04 0x0c>;
+	};
+
+	fan@5 {
+		reg = <0x05>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x05 0x0d>;
+	};
+
+	fan@6 {
+		reg = <0x06>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x06 0x0e>;
+	};
+
+	fan@7 {
+		reg = <0x07>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x07 0x0f>;
+	};
+};
+
+&spi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1_default>;
+
+	flash@0 {
+		m25p,fast-read;
+		label = "pnor";
+		spi-max-frequency = <100000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			code@...000 {
+				reg = <0x400000 0x1C00000>;
+				label = "pnor-code";
+			};
+
+			tfa@...000 {
+				reg = <0x400000 0x200000>;
+				label = "pnor-tfa";
+			};
+
+			uefi@...000 {
+				reg = <0x600000 0x1A00000>;
+				label = "pnor-uefi";
+			};
+		};
+	};
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd1_default
+			 &pinctrl_rxd1_default
+			 &pinctrl_ncts1_default
+			 &pinctrl_nrts1_default>;
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd2_default
+			 &pinctrl_rxd2_default>;
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd3_default
+			 &pinctrl_rxd3_default>;
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd4_default
+			 &pinctrl_rxd4_default>;
+};
+
+// The BMC's uart
+&uart5 {
+	status = "okay";
+};
+
+&vhub {
+	status = "okay";
+};
+
+&video {
+	memory-region = <&video_engine_memory>;
+};
-- 
2.47.3

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