* [PATCH v4 2/2] ARM: dts: aspeed: Add NVIDIA VR-NVL BMC
2026-07-28 8:55 [PATCH v4 0/2] Add device tree for NVIDIA VR-NVL BMC Jacky Huang
2026-07-28 8:55 ` [PATCH v4 1/2] dt-bindings: arm: aspeed: Add " Jacky Huang
@ 2026-07-28 8:55 ` Jacky Huang
2026-07-28 14:39 ` Rob Herring
1 sibling, 1 reply; 4+ messages in thread
From: Jacky Huang @ 2026-07-28 8:55 UTC (permalink / raw)
To: andrew, joel, robh, krzysztof.kozlowski, conor+dt, andrew
Cc: devicetree, linux-aspeed, linux-arm-kernel, linux-kernel, openbmc,
Jacky Huang
Add the device tree for the Aspeed AST2600 BMC for NVIDIA's Vera
Rubin NVL compute platform.
MAC0 uses phy-mode = "rgmii-id" because the on-board PHY supplies
both RGMII internal delays. The matching U-Boot device tree does not
enable SoC-side MAC clock delays, leaving the MAC internal delay at
zero so the PHY-provided delay is not doubled by the MAC controller.
The corresponding U-Boot change has been submitted to openbmc/u-boot:
Link: https://lore.kernel.org/all/20260629105202.1417679-1-jackyhuang@nvidia.com/
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jacky Huang <jackyhuang@nvidia.com>
---
v4: address dt-check-style findings for property and child node ordering,
required blank lines, and line length. Retain 8 conventional multi-line
block comments with mixed-indent and 22 meaningful unused labels for
source readability and future references. They can be removed if
preferred.
arch/arm/boot/dts/aspeed/Makefile | 1 +
.../aspeed/aspeed-bmc-nvidia-vr-nvl-bmc.dts | 923 ++++++++++++++++++
2 files changed, 924 insertions(+)
create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-vr-nvl-bmc.dts
diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index 6b68671f9379..07e10083a8bd 100644
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -65,6 +65,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
aspeed-bmc-microsoft-olympus.dtb \
aspeed-bmc-nvidia-gb200nvl-bmc.dtb \
aspeed-bmc-nvidia-msx4-bmc.dtb \
+ aspeed-bmc-nvidia-vr-nvl-bmc.dtb \
aspeed-bmc-opp-lanyang.dtb \
aspeed-bmc-opp-mowgli.dtb \
aspeed-bmc-opp-nicole.dtb \
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-vr-nvl-bmc.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-vr-nvl-bmc.dts
new file mode 100644
index 000000000000..1c04fd3e627c
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-vr-nvl-bmc.dts
@@ -0,0 +1,923 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2026 NVIDIA Corporation
+
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/i2c/i2c.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+ compatible = "nvidia,vr-nvl-bmc", "aspeed,ast2600";
+ model = "AST2600 VR NVL BMC";
+
+ aliases {
+ i2c16 = &i2c_usbhub;
+ i2c17 = &i2c_tpm;
+ i2c18 = &i2c_dp;
+ serial2 = &uart3;
+ serial4 = &uart5;
+ };
+
+ chosen {
+ stdout-path = &uart5;
+ };
+
+ memory@80000000 {
+ reg = <0x80000000 0x80000000>;
+ device_type = "memory";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led-0 {
+ gpios = <&exp4 10 GPIO_ACTIVE_LOW>;
+ label = "uid_led";
+ };
+
+ led-1 {
+ gpios = <&exp4 12 GPIO_ACTIVE_LOW>;
+ label = "fault_led";
+ };
+
+ led-2 {
+ gpios = <&exp4 8 GPIO_ACTIVE_LOW>;
+ label = "power_led";
+ };
+ };
+
+ standby_power_regulator: regulator-standby-power {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpios = <&gpio0 ASPEED_GPIO(M, 3) GPIO_ACTIVE_HIGH>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-max-microvolt = <1800000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-name = "standby_power";
+ };
+
+ reserved-memory {
+ ranges;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ vga_memory: framebuffer@9f000000 {
+ reg = <0x9f000000 0x01000000>; /* 16 MiB */
+ no-map;
+ };
+
+ ramoops@a0000000 {
+ compatible = "ramoops";
+ reg = <0xa0000000 0x100000>; /* 1 MiB */
+ max-reason = <2>; /* KMSG_DUMP_OOPS */
+ record-size = <0x10000>; /* 64 KiB */
+ };
+
+ gfx_memory: framebuffer {
+ compatible = "shared-dma-pool";
+ alignment = <0x01000000>;
+ reusable;
+ size = <0x01000000>;
+ };
+
+ video_engine_memory: jpegbuffer {
+ compatible = "shared-dma-pool";
+ alignment = <0x01000000>;
+ reusable;
+ size = <0x02000000>; /* 32 MiB */
+ };
+ };
+};
+
+&ehci1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ status = "okay";
+
+ hub@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hub@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hub@4 {
+ reg = <4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* port 1: BlueField-4 SMA mgmt */
+ device@1 {
+ reg = <1>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ interface@1 {
+ reg = <1 1>;
+ };
+ };
+
+ cp2112g: device@2 {
+ reg = <2>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "BF4_USB_MCU_RECOVERY_L",
+ "BF4_USB_MCU_RST_L",
+ "BF4_USB_FORCE_FNP_L",
+ "BF4_GLOBAL_WP",
+ "BF4_FORCE_POR_L",
+ "BF4_BMC_EROT_RST_L",
+ "BF4_BMC_EROT_RECOVERY_L",
+ "BF4_THERM_SHUTDOWN";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+ };
+
+ hub@2 {
+ reg = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hub@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ device@1 {
+ reg = <1>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cp2112a: interface@1 {
+ reg = <1 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+
+ hub@3 {
+ reg = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ device@1 {
+ reg = <1>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ iob1_sma: interface@1 {
+ reg = <1 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+
+ cp2112c: device@2 {
+ reg = <2>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "IOB1_MCP_P0_2-B",
+ "IOB1_MCU_RST_L-O",
+ "IOB1_MCU_RECOVERY_L-O",
+ "IOB1_GLOBAL_WP-O",
+ "IOB1_GLOBAL_ADDR_L_R-O",
+ "IOB1_GLOBAL_ADDR_U_D-O",
+ "IOB1_PWR_EN-O",
+ "IOB1_MCU_READY_STATUS-I";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+
+ hub@4 {
+ reg = <4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ device@1 {
+ reg = <1>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ iob0_sma: interface@1 {
+ reg = <1 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+
+ cp2112d: device@2 {
+ reg = <2>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "IOB0_MCP_P0_2-B",
+ "IOB0_MCU_RST_L-O",
+ "IOB0_MCU_RECOVERY_L-O",
+ "IOB0_GLOBAL_WP-O",
+ "IOB0_GLOBAL_ADDR_L_R-O",
+ "IOB0_GLOBAL_ADDR_U_D-O",
+ "IOB0_PWR_EN-O",
+ "IOB0_MCU_READY_STATUS-I";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+ };
+
+ hub@2 {
+ reg = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ device@1 {
+ reg = <1>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cp2112b: interface@1 {
+ reg = <1 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+
+ hub@3 {
+ reg = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ device@1 {
+ reg = <1>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ iob2_sma: interface@1 {
+ reg = <1 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+
+ cp2112e: device@2 {
+ reg = <2>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "IOB2_MCP_P0_2-B",
+ "IOB2_MCU_RST_L-O",
+ "IOB2_MCU_RECOVERY_L-O",
+ "IOB2_GLOBAL_WP-O",
+ "IOB2_GLOBAL_ADDR_L_R-O",
+ "IOB2_GLOBAL_ADDR_U_D-O",
+ "IOB2_PWR_EN-O",
+ "IOB2_MCU_READY_STATUS-I";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+
+ hub@4 {
+ reg = <4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ device@1 {
+ reg = <1>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ iob3_sma: interface@1 {
+ reg = <1 1>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+
+ cp2112f: device@2 {
+ reg = <2>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "IOB3_MCP_P0_2-B",
+ "IOB3_MCU_RST_L-O",
+ "IOB3_MCU_RECOVERY_L-O",
+ "IOB3_GLOBAL_WP-O",
+ "IOB3_GLOBAL_ADDR_L_R-O",
+ "IOB3_GLOBAL_ADDR_U_D-O",
+ "IOB3_PWR_EN-O",
+ "IOB3_MCU_READY_STATUS-I";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ };
+ };
+ };
+ };
+ };
+};
+
+&fmc {
+ status = "okay";
+
+ flash@0 {
+ label = "bmc";
+
+ status = "okay";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ reg = <0x0 0xe0000>; /* 896 KiB */
+ label = "u-boot";
+ };
+
+ partition@100000 {
+ reg = <0x100000 0x900000>; /* 9 MiB */
+ label = "kernel";
+ };
+
+ partition@a00000 {
+ /*
+ * extends to end of 64 MiB - 4 KiB; last
+ * 4 KiB reserved for EROT image
+ */
+ reg = <0xa00000 0x35ff000>;
+ label = "rofs";
+ };
+ };
+ };
+};
+
+&gpio0 {
+ gpio-line-names =
+ /* A0-A7 */ "", "", "", "", "", "", "", "",
+ /* B0-B7 */ "", "", "", "", "", "", "", "",
+ /* C0-C7 */ "", "BF4_USB_RST_L-O", "", "", "", "", "", "",
+ /* D0-D7 */ "", "", "", "", "", "FPGA_PEX_RST_L", "", "",
+ /* E0-E7 */ "RTL8221_PHY_RST_L-O", "RTL8211_PHY_INT_L-I",
+ "", "", "", "", "", "MUX_SGPIO_SEL-O",
+ /* F0-F7 */ "", "", "", "", "", "", "", "",
+ /* G0-G7 */ "", "", "", "", "", "", "", "",
+ /* H0-H7 */ "", "", "", "", "", "", "", "",
+ /* I0-I7 */ "", "", "", "", "", "QSPI2_RST_L-O",
+ "GLOBAL_WP_BMC-I", "BMC_DDR4_TEN-O",
+ /* J0-J7 */ "", "", "", "", "", "", "", "",
+ /* K0-K7 */ "", "", "", "", "", "", "", "",
+ /* L0-L7 */ "", "", "", "", "", "", "", "",
+ /* M0-M7 */ "USB_HUB_RST_N-O", "BMC_FRU_WP-O",
+ "", "HMC_STBY_POWER_EN-O", "STBY_POWER_PG-I",
+ "PCIE_EP_RST_L-O", "", "",
+ /* N0-N7 */ "", "", "", "", "", "", "", "",
+ /* O0-O7 */ "", "", "", "", "", "", "", "",
+ /* P0-P7 */ "", "", "", "", "", "", "", "",
+ /* Q0-Q7 */ "", "", "", "", "", "", "", "",
+ /* R0-R7 */ "", "SP0_AP_INTR_N-I", "", "", "", "", "", "",
+ /* S0-S7 */ "", "", "", "", "", "", "", "",
+ /* T0-T7 */ "", "", "", "", "", "", "", "",
+ /* U0-U7 */ "", "", "", "", "", "", "", "",
+ /* V0-V7 */ "", "", "", "", "",
+ "PCB_TEMP_ALERT-I", "", "",
+ /* W0-W7 */ "", "", "", "", "", "", "", "CPU_RST_L-I",
+ /* X0-X7 */ "", "", "", "", "", "", "", "",
+ /* Y0-Y7 */ "", "", "", "EMMC_RST-O", "", "", "", "",
+ /* Z0-Z7 */ "HMC_EROT_SPI_INT_L-I",
+ "", "", "", "", "", "", "";
+};
+
+&gpio1 {
+ gpio-line-names =
+ /* A0-A7 */ "", "", "", "", "", "", "", "",
+ /* B0-B7 */ "", "", "", "", "AP_EROT_REQ-O",
+ "EROT_AP_GNT-I", "IO_EXPANDER_INT_L-I", "",
+ /* C0-C7 */ "", "", "", "", "", "", "", "",
+ /* D0-D7 */ "", "", "", "", "", "", "",
+ "I2C_SSIF_ALERT_L-I",
+ /* E0-E7 */ "", "", "", "", "", "", "", "";
+};
+
+/* SSIF (CPU0 host IPMI) */
+&i2c0 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+};
+
+/* BMC <-> HMC management (FRU proxy) */
+&i2c1 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+};
+
+&i2c2 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+
+ exp0: gpio@20 {
+ compatible = "nxp,pca9555";
+ reg = <0x20>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "B0_M0_SHDN_FORCE_L-O",
+ "B0_M0_STBY_POWER_PG-I",
+ "B0_M0_THERM_OVERT_L-I",
+ "B0_M0_THERM_WARN_L-I",
+ "B0_M0_GLOBAL_WP-O",
+ "B0_M0_USB_HUB0_RST_L-O",
+ "B0_M0_PRE_SYS_RST_L-O",
+ "B0_M0_LEAK_DETECT_ALERT_L-I",
+ "B0_M0_RUN_POWER_EN-O",
+ "B0_M0_RUN_POWER_PG-I",
+ "B0_M0_CPU_CHIPTHROT_L-O",
+ "B0_M0_SHDN_REQ_L-O",
+ "B0_M0_CPU_SHDN_OK_L-I",
+ "B0_M0_CPLD_READY-I",
+ "B0_M0_PWR_BRAKE_L-O",
+ "B0_M0_PWR_BRAKE_STATUS_L-I";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ vcc-supply = <&standby_power_regulator>;
+ };
+
+ exp1: gpio@21 {
+ compatible = "nxp,pca9555";
+ reg = <0x21>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "B0_M0_I2C_BUS_MUX_RESET_L-O",
+ "B0_M0_HPM_MCU_OK-I",
+ "B0_M0_CPU_L0_RST_IND_L-O",
+ "B0_M0_C0_SOCAMM_DAC_SEL0-O",
+ "B0_M0_C1_SOCAMM_DAC_SEL1-O",
+ "B0_M0_C0_SOCAMM_I2C_SEL_R-O",
+ "B0_M0_C1_SOCAMM_I2C_SEL_R-O",
+ "B0_M0_EEPROM_POWER_DISABLE-O",
+ "B0_M0_L0L1_RST_L-I",
+ "B0_M0_L2_RST_L-I",
+ "B0_M0_BRD_ID_0-I",
+ "B0_M0_BRD_ID_1-I",
+ "B0_M0_BMC_LEAK_TEST_L-O",
+ "B0_M0_MCU_BMC_ALERT_L-I",
+ "B0_M0_CPU_BOOT_COMPLETE_3V3-I",
+ "B0_M0_BMC_TO_GPU_MCU_I2C_EN-O";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ vcc-supply = <&standby_power_regulator>;
+ };
+};
+
+/* HMC virtual EEPROM / sensor proxy */
+&i2c3 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+};
+
+/* MCIO expansion connector (HPM board 0) */
+&i2c4 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+};
+
+&i2c5 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+
+ exp4: gpio@20 {
+ compatible = "nxp,pca9555";
+ reg = <0x20>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "HMC_RST_R_L-O",
+ "HMC_RECOVERY_R-O",
+ "HMC_SPI_MUX_R_SEL-O",
+ "GLOBAL_WP-O",
+ "HMC_READY-I",
+ "HMC_PRSNT_R-I",
+ "BMC_SELF_PWR_CYCLE-O",
+ "EEDO_LED2-O",
+ "PWR_LED_L-O",
+ "PWR_BTN_L-I",
+ "UID_LED_L-O",
+ "UID_BTN_L-I",
+ "FAULT_LED_L-O",
+ "USB2_HUB_RST_L-O",
+ "IOX_GPIO_P16_TP",
+ "WARN_LED_L-O";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ exp5: gpio@21 {
+ compatible = "nxp,pca9555";
+ reg = <0x21>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "BMC_HMC_MUX_SEL-O",
+ "BMC_TPM_MUX_SEL-O",
+ "BMC_USB2_MUX_SEL-O",
+ "HMC_PGOOD_3V3-I",
+ "BF3_AOC_NCSI_PRSNT_L-I",
+ "HDR_SPI_PRSNT_L-I",
+ "SW_NRESET_R_L-O",
+ "MUX_I2C_ESPI_SEL-O",
+ "I2C_BUS_MUX_RESET_L-O",
+ "USB_MUX_EN-O",
+ "PDB_TRAY_RST-O",
+ "USB_PWR_EN-O",
+ "RTC_CLR_L-O",
+ "I2C_RTC_ALERT_L-I",
+ "X86_TPM_RST_SEL_L-O",
+ "BMC_MUX_PI3DP_SEL-O";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+&i2c6 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+
+ exp19: gpio@20 {
+ compatible = "ti,tca6408";
+ reg = <0x20>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "", "",
+ "HMC_EROT_FATAL_ERROR_L-I", "",
+ "", "HMC_EROT_RECOVERY_L-O",
+ "HMC_EROT_RESET_L-O", "";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ i2c-mux@70 {
+ compatible = "nxp,pca9546";
+ reg = <0x70>;
+ #address-cells = <1>;
+ i2c-mux-idle-disconnect;
+ #size-cells = <0>;
+
+ /* USB hub sideband */
+ i2c_usbhub: i2c@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ /* optional TPM mux (unused; primary TPM is SPI) */
+ i2c_tpm: i2c@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ /* DisplayPort/USB-C crossbar */
+ i2c_dp: i2c@2 {
+ reg = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+};
+
+&i2c7 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+
+ exp2: gpio@20 {
+ compatible = "nxp,pca9555";
+ reg = <0x20>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "B1_M0_SHDN_FORCE_L-O",
+ "B1_M0_STBY_POWER_PG-I",
+ "B1_M0_THERM_OVERT_L-I",
+ "B1_M0_THERM_WARN_L-I",
+ "B1_M0_GLOBAL_WP-O",
+ "B1_M0_USB_HUB0_RST_L-O",
+ "B1_M0_PRE_SYS_RST_L-O",
+ "B1_M0_LEAK_DETECT_ALERT_L-I",
+ "B1_M0_RUN_POWER_EN-O",
+ "B1_M0_RUN_POWER_PG-I",
+ "B1_M0_CPU_CHIPTHROT_L-O",
+ "B1_M0_SHDN_REQ_L-O",
+ "B1_M0_CPU_SHDN_OK_L-I",
+ "B1_M0_CPLD_READY-I",
+ "B1_M0_PWR_BRAKE_L-O",
+ "B1_M0_PWR_BRAKE_STATUS_L-I";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ vcc-supply = <&standby_power_regulator>;
+ };
+
+ exp3: gpio@21 {
+ compatible = "nxp,pca9555";
+ reg = <0x21>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "B1_M0_I2C_BUS_MUX_RESET_L-O",
+ "B1_M0_HPM_MCU_OK-I",
+ "B1_M0_CPU_L0_RST_IND_L-O",
+ "B1_M0_C0_SOCAMM_DAC_SEL0-O",
+ "B1_M0_C1_SOCAMM_DAC_SEL1-O",
+ "B1_M0_C0_SOCAMM_I2C_SEL_R-O",
+ "B1_M0_C1_SOCAMM_I2C_SEL_R-O",
+ "B1_M0_EEPROM_POWER_DISABLE-O",
+ "B1_M0_L0L1_RST_L-I",
+ "B1_M0_L2_RST_L-I",
+ "B1_M0_BRD_ID_0-I",
+ "B1_M0_BRD_ID_1-I",
+ "B1_M0_BMC_LEAK_TEST_L-O",
+ "B1_M0_MCU_BMC_ALERT_L-I",
+ "B1_M0_CPU_BOOT_COMPLETE_3V3-I",
+ "B1_M0_BMC_TO_GPU_MCU_I2C_EN-O";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ vcc-supply = <&standby_power_regulator>;
+ };
+};
+
+/* SSIF (CPU1 host IPMI) */
+&i2c8 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+};
+
+&i2c9 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+
+ exp6: gpio@20 {
+ compatible = "nxp,pca9555";
+ reg = <0x20>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "PDB_STRAP-I",
+ "STBY_POWER_EN-O",
+ "STBY_PWR_OK-I",
+ "", "",
+ "MAIN_PWR_EN-O",
+ "MAIN_PWR_OK-I",
+ "PDB_GLB_WP-O",
+ "PDB_PWR_BRK_L-I",
+ "FAN_PRSNT-I",
+ "", "",
+ "HSC4_S5_OR_S0_N-O",
+ "", "", "";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ eeprom@50 {
+ compatible = "atmel,24c02";
+ reg = <0x50>;
+ pagesize = <8>;
+ };
+
+ exp7: gpio@75 {
+ compatible = "nxp,pca9539";
+ reg = <0x75>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "SNN_PDB_RUN_IO0_A_R_PG-I",
+ "RST_STBY_R_L-O",
+ "SNN_PDB_RUN_IO0_B_R_EN-O",
+ "PSU1_PRSNT_R_N-O",
+ "PSU2_PRSNT_R_N-O",
+ "PSU3_PRSNT_R_N-O",
+ "PSU4_PRSNT_R_N-O",
+ "PDB_12V_PG_R-I",
+ "PDB_12V_2_PG_R-I",
+ "PDB_12V_2_EN_R-O",
+ "PDB_12V_EN_N_R-O",
+ "",
+ "HSC_PG_VIN_PG_R-I",
+ "PDB_PSU_SMB_ALERT_L_R-O",
+ "SNN_JSB2_17_R-I",
+ "TRAY_RST_L_R-I";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+&i2c10 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+
+ eeprom@50 {
+ compatible = "atmel,24c02";
+ reg = <0x50>;
+ pagesize = <8>;
+ };
+};
+
+/* Realtek Ethernet switch config EEPROM */
+&i2c11 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+};
+
+/* BMC EROT */
+&i2c12 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+};
+
+&i2c13 {
+ clock-frequency = <400000>;
+ mctp-controller;
+ multi-master;
+
+ status = "okay";
+
+ mctp-controller@18 {
+ compatible = "mctp-i2c-controller";
+ reg = <(0x18 | I2C_OWN_SLAVE_ADDRESS)>;
+ };
+
+ exp18: gpio@38 {
+ compatible = "nxp,pca9554";
+ reg = <0x38>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-line-names =
+ "SSD0_PRSNT_L-I",
+ "E1S_PWR_EN-O",
+ "SSD0_PWRDIS-O",
+ "I2C_PDB_ALERT_L-I",
+ "BMC_SSD0_RST_L-O",
+ "GLOBAL_WP_E1S-O",
+ "12V_SSD0_PGD-I",
+ "SSD0_LED-O";
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gpio1>;
+ interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+/* MCIO expansion connector (HPM board 1) */
+&i2c14 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+};
+
+/* USB-C PD controller */
+&i2c15 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+};
+
+&mac0 {
+ phy-handle = <ðphy0>;
+ /*
+ * The on-board PHY uses both the RX and TX RGMII internal
+ * delays. Declare "rgmii-id" so the MAC does not add
+ * additional delay. The same setting is applied in the
+ * matching u-boot DTS to keep early-boot networking working.
+ */
+ phy-mode = "rgmii-id";
+ pinctrl-0 = <&pinctrl_rgmii1_default>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+&mdio0 {
+ status = "okay";
+
+ ethphy0: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ };
+};
+
+&spi2 {
+ pinctrl-0 = <&pinctrl_spi2_default>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ flash@0 {
+ label = "config";
+
+ status = "okay";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ reg = <0x0 0x40000>; /* 256 KiB */
+ label = "u-boot-env";
+ };
+
+ partition@40000 {
+ reg = <0x40000 0x1000000>; /* 16 MiB */
+ label = "rwfs";
+ };
+
+ partition@1040000 {
+ reg = <0x1040000 0x2800000>; /* 40 MiB */
+ label = "log";
+ };
+ };
+ };
+};
+
+/* BMC <-> host CPU UART */
+&uart1 {
+ status = "okay";
+};
+
+/* Serial-over-LAN */
+&uart3 {
+ status = "okay";
+};
+
+/* BMC debug console */
+&uart5 {
+ status = "okay";
+};
+
+&uart_routing {
+ status = "okay";
+};
+
+&vhub {
+ status = "okay";
+};
+
+&video {
+ memory-region = <&video_engine_memory>;
+
+ status = "okay";
+};
--
2.43.0
^ permalink raw reply related [flat|nested] 4+ messages in thread