[PATCH v3 2/2] ARM: dts: aspeed: add asrock x470d4u bmc
Tan Siewert
tan at siewert.io
Wed Aug 12 13:28:27 PDT 2026
The ASRock Rack X470D4U X470D4U is a single-socket X470-based microATX
motherboard for Ryzen processors with an AST2500 BMC and either 32MB or
64MB SPI flash.
This mainboard exists in three known "flavors" which only differ in the
used host NIC, the BMC SPI size and some parts that may be un-populated.
To allow the use of the full SPI flash, add two trees, one of which has
the 32M layout with the base config, and a 64M tree that includes the
base tree.
Signed-off-by: Tan Siewert <tan at siewert.io>
---
arch/arm/boot/dts/aspeed/Makefile | 2 +
.../aspeed/aspeed-bmc-asrock-x470d4u-data64.dts | 15 +
.../boot/dts/aspeed/aspeed-bmc-asrock-x470d4u.dts | 381 +++++++++++++++++++++
3 files changed, 398 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index 6b68671f9379..e27d33e85fb2 100644
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -15,6 +15,8 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
aspeed-bmc-asrock-paul-ipmi-card.dtb \
aspeed-bmc-asrock-romed8hm3.dtb \
aspeed-bmc-asrock-spc621d8hm3.dtb \
+ aspeed-bmc-asrock-x470d4u.dtb \
+ aspeed-bmc-asrock-x470d4u-data64.dtb \
aspeed-bmc-asrock-x570d4u.dtb \
aspeed-bmc-asus-kommando-ipmi-card.dtb \
aspeed-bmc-asus-x4tf.dtb \
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-x470d4u-data64.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-x470d4u-data64.dts
new file mode 100644
index 000000000000..6f11aeab087c
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-x470d4u-data64.dts
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include "aspeed-bmc-asrock-x470d4u.dts"
+
+/ {
+ compatible = "asrock,x470d4u-data64-bmc", "aspeed,ast2500";
+ model = "Asrock Rack X470D4U-series BMC (64MB store)";
+};
+
+&fmc {
+ flash at 0 {
+ /delete-node/partitions;
+#include "openbmc-flash-layout-64.dtsi"
+ };
+};
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-x470d4u.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-x470d4u.dts
new file mode 100644
index 000000000000..80fb2b7c1e0c
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-x470d4u.dts
@@ -0,0 +1,381 @@
+// 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/interrupt-controller/irq.h>
+
+/ {
+ compatible = "asrock,x470d4u-bmc", "aspeed,ast2500";
+ model = "Asrock Rack X470D4U-series BMC";
+
+ aliases {
+ serial4 = &uart5;
+ };
+
+ chosen {
+ stdout-path = &uart5;
+ };
+
+ 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>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led-heartbeat {
+ /* led-heartbeat-n */
+ gpios = <&gpio ASPEED_GPIO(H, 6) GPIO_ACTIVE_LOW>;
+ label = "platform:heartbeat";
+ linux,default-trigger = "timer";
+ };
+
+ led-identify {
+ /* led-identify-n */
+ gpios = <&gpio ASPEED_GPIO(D, 6) GPIO_ACTIVE_LOW>;
+ label = "platform:identify";
+ };
+
+ led-systemfault {
+ /* led-fault-n */
+ gpios = <&gpio ASPEED_GPIO(Z, 2) GPIO_ACTIVE_LOW>;
+ label = "platform:systemfault";
+ panic-indicator;
+ };
+ };
+
+ memory at 80000000 {
+ reg = <0x80000000 0x20000000>;
+ };
+
+ reserved-memory {
+ ranges;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ pci_memory: region at 9a000000 {
+ reg = <0x9a000000 0x00010000>; /* 64K */
+ no-map;
+ };
+
+ gfx_memory: framebuffer {
+ compatible = "shared-dma-pool";
+ alignment = <0x01000000>;
+ reusable;
+ size = <0x01000000>;
+ };
+
+ video_engine_memory: jpegbuffer {
+ compatible = "shared-dma-pool";
+ alignment = <0x01000000>;
+ reusable;
+ size = <0x02800000>; /* 40M */
+ };
+ };
+};
+
+&adc {
+ pinctrl-0 = <&pinctrl_adc0_default /* 3VSB */
+ &pinctrl_adc1_default /* 5VSB */
+ &pinctrl_adc2_default /* VCPU */
+ &pinctrl_adc3_default /* VSOC */
+ &pinctrl_adc4_default /* VCCM */
+ &pinctrl_adc5_default /* APU-VDDP */
+ &pinctrl_adc6_default /* 1V05-PROM-S5 */
+ &pinctrl_adc7_default /* 2V5-PROM */
+ &pinctrl_adc8_default /* 1V05-PROM-RUN */
+ &pinctrl_adc9_default /* VBAT */
+ &pinctrl_adc10_default /* 3V */
+ &pinctrl_adc11_default /* 5V */
+ &pinctrl_adc12_default>; /* 12V */
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&fmc {
+ status = "okay";
+
+ flash at 0 {
+ label = "bmc";
+ spi-max-frequency = <10000000>;
+ m25p,fast-read;
+
+ status = "okay";
+
+#include "openbmc-flash-layout.dtsi"
+ };
+};
+
+&gfx {
+ memory-region = <&gfx_memory>;
+
+ status = "okay";
+};
+
+&gpio {
+ gpio-line-names =
+ /* A */ "input-locatorled-n", "", "", "", "", "", "", "",
+ /* B */ "input-bios-post-cmplt-n", "", "", "", "", "", "", "",
+ /* C */ "", "", "", "", "", "", "", "",
+ /* D */ "button-power-n", "control-power-n", "button-reset-n",
+ "control-reset-n", "", "", "", "",
+ /* E */ "", "", "", "", "", "", "", "",
+ /* F */ "", "", "", "", "", "", "", "",
+ /* G */ "output-hwm-vbat-enable", "input-id0-n", "input-id1-n",
+ "input-id2-n", "input-aux-smb-alert-n", "",
+ "input-psu-smb-alert-n", "",
+ /* H */ "", "", "", "", "input-mfg-mode-n", "",
+ "led-heartbeat-n", "input-case-open-n",
+ /* I */ "", "", "", "", "", "", "", "",
+ /* J */ "output-bmc-ready-n", "output-bios-cs-n", "", "", "", "",
+ "", "",
+ /* K */ "", "", "", "", "", "", "", "",
+ /* L */ "", "", "", "", "", "", "", "",
+ /* M */ "", "", "", "", "", "", "", "",
+ /* N */ "", "", "", "", "", "", "", "",
+ /* O */ "", "", "", "", "", "", "", "",
+ /* P */ "", "", "", "", "", "", "", "",
+ /* Q */ "", "", "", "", "input-bmc-smb-present-n", "", "",
+ "input-pcie-wake-n",
+ /* R */ "", "", "", "", "", "", "", "",
+ /* S */ "input-bmc-pchhot-n", "", "", "", "", "", "", "",
+ /* T */ "", "", "", "", "", "", "", "",
+ /* U */ "", "", "", "", "", "", "", "",
+ /* V */ "", "", "", "", "", "", "", "",
+ /* W */ "", "", "", "", "", "", "", "",
+ /* X */ "", "", "", "", "", "", "", "",
+ /* Y */ "input-sleep-s3-n", "input-sleep-s5-n", "", "", "", "",
+ "", "",
+ /* Z */ "", "", "led-fault-n", "output-bmc-throttle-n", "", "",
+ "", "",
+ /* AA */ "input-cpu1-thermtrip-latch-n", "",
+ "input-cpu1-prochot-n", "", "", "", "", "",
+ /* AB */ "", "input-power-good", "", "hard-power-off", "", "", "", "",
+ /* AC */ "", "", "", "", "", "", "", "";
+
+ bmc-ready-hog {
+ gpio-hog;
+ gpios = <ASPEED_GPIO(J, 0) GPIO_ACTIVE_LOW>;
+ output-high;
+ };
+};
+
+&i2c0 {
+ /* SMBus on auxiliary panel header (AUX_PANEL1) */
+ status = "okay";
+};
+
+&i2c1 {
+ /* Hardware monitoring SMBus */
+ status = "okay";
+
+ w83773g at 4c {
+ compatible = "nuvoton,w83773g";
+ reg = <0x4c>;
+ };
+};
+
+&i2c2 {
+ /* PSU SMBus (PSU_SMB1) */
+ status = "okay";
+};
+
+&i2c3 {
+ status = "okay";
+};
+
+&i2c4 {
+ status = "okay";
+};
+
+&i2c6 {
+ /* SMBus on BMC connector (BMC_SMB_1) */
+ status = "okay";
+};
+
+&i2c7 {
+ /* FRU EEPROM */
+ status = "okay";
+
+ eeprom at 57 {
+ compatible = "atmel,24c128";
+ reg = <0x57>;
+ pagesize = <16>;
+
+ nvmem-layout {
+ compatible = "fixed-layout";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ eth0_macaddress: macaddress at 3f80 {
+ reg = <0x3f80 6>;
+ };
+
+ eth1_macaddress: macaddress at 3f88 {
+ reg = <0x3f88 6>;
+ };
+ };
+ };
+};
+
+&kcs3 {
+ aspeed,lpc-io-reg = <0xca2>;
+
+ status = "okay";
+};
+
+&lpc_ctrl {
+ status = "okay";
+};
+
+&lpc_snoop {
+ snoop-ports = <0x80>;
+
+ status = "okay";
+};
+
+&mac0 {
+ nvmem-cells = <ð0_macaddress>;
+ nvmem-cell-names = "mac-address";
+
+ pinctrl-0 = <&pinctrl_rgmii1_default &pinctrl_mdio1_default>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+&mac1 {
+ nvmem-cells = <ð1_macaddress>;
+ nvmem-cell-names = "mac-address";
+
+ pinctrl-0 = <&pinctrl_rmii2_default>;
+ pinctrl-names = "default";
+ use-ncsi;
+
+ status = "okay";
+};
+
+&pwm_tacho {
+ pinctrl-0 = <&pinctrl_pwm0_default
+ &pinctrl_pwm1_default
+ &pinctrl_pwm2_default
+ &pinctrl_pwm3_default
+ &pinctrl_pwm4_default
+ &pinctrl_pwm5_default>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ fan at 0 {
+ /* FAN1 (4-pin) */
+ reg = <0x00>;
+ aspeed,fan-tach-ch = /bits/ 8 <0x00>;
+ };
+
+ fan at 1 {
+ /* FAN2 (4-pin) */
+ reg = <0x01>;
+ aspeed,fan-tach-ch = /bits/ 8 <0x01>;
+ };
+
+ fan at 2 {
+ /* FAN3 (4-pin) */
+ reg = <0x02>;
+ aspeed,fan-tach-ch = /bits/ 8 <0x02>;
+ };
+
+ fan at 3 {
+ /* FAN4 (6-pin) */
+ reg = <0x03>;
+ aspeed,fan-tach-ch = /bits/ 8 <0x03 0x0b>;
+ };
+
+ fan at 4 {
+ /* FAN5 (6-pin) */
+ reg = <0x04>;
+ aspeed,fan-tach-ch = /bits/ 8 <0x04 0x0d>;
+ };
+
+ fan at 5 {
+ /* FAN6 (6-pin) */
+ reg = <0x05>;
+ aspeed,fan-tach-ch = /bits/ 8 <0x05 0x0e>;
+ };
+};
+
+&p2a {
+ memory-region = <&pci_memory>;
+
+ status = "okay";
+};
+
+&spi1 {
+ pinctrl-0 = <&pinctrl_spi1_default>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ flash at 0 {
+ label = "bios";
+ /* Frequency extracted from original ROM */
+ spi-max-frequency = <24000000>; /* 24 MHz */
+ m25p,fast-read;
+
+ status = "okay";
+ };
+};
+
+&uhci {
+ status = "okay";
+};
+
+&vhub {
+ status = "okay";
+};
+
+&video {
+ memory-region = <&video_engine_memory>;
+
+ status = "okay";
+};
+
+&vuart {
+ aspeed,lpc-interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+ aspeed,lpc-io-reg = <0x2f8>;
+
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart3 {
+ status = "okay";
+};
+
+&uart4 {
+ status = "okay";
+};
+
+&uart5 {
+ status = "okay";
+};
+
+&uart_routing {
+ status = "okay";
+};
--
2.54.0
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