[PATCH v2 2/2] ARM: dts: aspeed: add device tree for ASRock Rack ALTRAD8 BMC

Rebecca Cran
2025-09-17T18:04:59Z

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@bsdio.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@80000000 {
+ 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@9f000000 {
+ 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@3f88 {
+ reg = <0x3f88 6>;
+ };
+
+ eth1_macaddress: macaddress@3f80 {
+ 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@400000 {
+ reg = <0x400000 0x1C00000>;
+ label = "pnor-code";
+ };
+
+ tfa@400000 {
+ reg = <0x400000 0x200000>;
+ label = "pnor-tfa";
+ };
+
+ uefi@600000 {
+ 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