]> git.ipfire.org Git - thirdparty/linux.git/commitdiff
ARM: dts: aspeed: Add device tree for Nvidia's GB200NVL BMC
authorWillie Thai <wthai@nvidia.com>
Tue, 1 Apr 2025 15:39:55 +0000 (15:39 +0000)
committerAndrew Jeffery <andrew@codeconstruct.com.au>
Wed, 11 Jun 2025 04:19:19 +0000 (13:49 +0930)
The GB200NVL BMC is an Aspeed Ast2600 based BMC [1] for Nvidia Blackwell
GB200NVL platform [2].

Co-developed-by: Mars Yang <maryang@nvidia.com>
Signed-off-by: Mars Yang <maryang@nvidia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
Link: https://www.aspeedtech.com/server_ast2600/
Link: https://nvdam.widen.net/s/wwnsxrhm2w/blackwell-datasheet-3384703
Signed-off-by: Willie Thai <wthai@nvidia.com>
Link: https://patch.msgid.link/20250401153955.314860-3-wthai@nvidia.com
[arj: tidy commit message]
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
arch/arm/boot/dts/aspeed/Makefile
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts [new file with mode: 0644]

index 456da4b6fc9bb7891eda943172d2a101bef0b69d..b3170fdd30969b5b064c5333aea136d3abfcbe72 100644 (file)
@@ -50,6 +50,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
        aspeed-bmc-lenovo-hr630.dtb \
        aspeed-bmc-lenovo-hr855xg2.dtb \
        aspeed-bmc-microsoft-olympus.dtb \
+       aspeed-bmc-nvidia-gb200nvl-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-gb200nvl-bmc.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
new file mode 100644 (file)
index 0000000..41e3e9d
--- /dev/null
@@ -0,0 +1,1128 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+#include <dt-bindings/i2c/i2c.h>
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+       model = "AST2600 GB200NVL BMC";
+       compatible = "nvidia,gb200nvl-bmc", "aspeed,ast2600";
+
+       aliases {
+               serial2 = &uart3;
+               serial4 = &uart5;
+               i2c16   = &imux16;
+               i2c17   = &imux17;
+               i2c18   = &imux18;
+               i2c19   = &imux19;
+               i2c20   = &imux20;
+               i2c21   = &imux21;
+               i2c22   = &imux22;
+               i2c23   = &imux23;
+               i2c24   = &imux24;
+               i2c25   = &imux25;
+               i2c26   = &imux26;
+               i2c27   = &imux27;
+               i2c28   = &imux28;
+               i2c29   = &imux29;
+               i2c30   = &imux30;
+               i2c31   = &imux31;
+               i2c32   = &imux32;
+               i2c33   = &imux33;
+               i2c34   = &imux34;
+               i2c35   = &imux35;
+               i2c36   = &imux36;
+               i2c37   = &imux37;
+               i2c38   = &imux38;
+               i2c39   = &imux39;
+               i2c40   = &e1si2c0;
+               i2c41   = &e1si2c1;
+               i2c42   = &e1si2c2;
+               i2c43   = &e1si2c3;
+               i2c44   = &e1si2c4;
+               i2c45   = &e1si2c5;
+               i2c46   = &e1si2c6;
+               i2c47   = &e1si2c7;
+               i2c48   = &i2c17mux0;
+               i2c49   = &i2c17mux1;
+               i2c50   = &i2c17mux2;
+               i2c51   = &i2c17mux3;
+               i2c52   = &i2c25mux0;
+               i2c53   = &i2c25mux1;
+               i2c54   = &i2c25mux2;
+               i2c55   = &i2c25mux3;
+               i2c56   = &i2c29mux0;
+               i2c57   = &i2c29mux1;
+               i2c58   = &i2c29mux2;
+               i2c59   = &i2c29mux3;
+       };
+
+       chosen {
+               stdout-path = &uart5;
+       };
+
+       memory@80000000 {
+               device_type = "memory";
+               reg = <0x80000000 0x80000000>;
+       };
+
+       reserved-memory {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges;
+
+               vga_memory: framebuffer@9f000000 {
+                       no-map;
+                       reg = <0x9f000000 0x01000000>; /* 16M */
+               };
+
+               ramoops@a0000000 {
+                       compatible = "ramoops";
+                       reg = <0xa0000000 0x100000>; /* 1MB */
+                       record-size = <0x10000>; /* 64KB */
+                       max-reason = <2>; /* KMSG_DUMP_OOPS */
+               };
+
+               gfx_memory: framebuffer {
+                       size = <0x01000000>;
+                       alignment = <0x01000000>;
+                       compatible = "shared-dma-pool";
+                       reusable;
+               };
+
+               video_engine_memory: jpegbuffer {
+                       size = <0x02000000>;    /* 32M */
+                       alignment = <0x01000000>;
+                       compatible = "shared-dma-pool";
+                       reusable;
+               };
+       };
+
+       leds {
+               compatible = "gpio-leds";
+               led-0 {
+                       label = "uid_led";
+                       gpios = <&sgpiom0 27 GPIO_ACTIVE_LOW>;
+               };
+               led-1 {
+                       label = "fault_led";
+                       gpios = <&sgpiom0 29 GPIO_ACTIVE_LOW>;
+               };
+               led-2 {
+                       label = "power_led";
+                       gpios = <&sgpiom0 31 GPIO_ACTIVE_LOW>;
+               };
+       };
+
+       buttons {
+               button-power {
+                       label = "power-btn";
+                       gpio = <&sgpiom0 156 GPIO_ACTIVE_LOW>;
+               };
+               button-uid {
+                       label = "uid-btn";
+                       gpio = <&sgpiom0 154 GPIO_ACTIVE_LOW>;
+               };
+       };
+};
+
+// Enable Primary flash on FMC for bring up activity
+&fmc {
+       status = "okay";
+       flash@0 {
+               status = "okay";
+               compatible = "jedec,spi-nor";
+               label = "bmc";
+               spi-max-frequency = <50000000>;
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       u-boot@0 {
+                               // 896KB
+                               reg = <0x0 0xe0000>;
+                               label = "u-boot";
+                       };
+
+                       kernel@100000 {
+                               // 9MB
+                               reg = <0x100000 0x900000>;
+                               label = "kernel";
+                       };
+
+                       rofs@a00000 {
+                               // 55292KB (extends to end of 64MB SPI - 4KB)
+                               reg = <0xa00000 0x35FF000>;
+                               label = "rofs";
+                       };
+               };
+       };
+};
+
+&spi2 {
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_spi2_default>;
+
+       // Data SPI is 64MB in size
+       flash@0 {
+               status = "okay";
+               label = "config";
+               spi-max-frequency = <50000000>;
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       u-boot-env@0 {
+                               // 256KB
+                               reg = <0x0 0x40000>;
+                               label = "u-boot-env";
+                       };
+
+                       rwfs@40000 {
+                               // 16MB
+                               reg = <0x40000 0x1000000>;
+                               label = "rwfs";
+                       };
+
+                       log@1040000 {
+                               // 40MB
+                               reg = <0x1040000 0x2800000>;
+                               label = "log";
+                       };
+               };
+       };
+};
+
+&uart1 {
+       status = "okay";
+};
+
+&uart3 {
+       // Enabling SOL
+       status = "okay";
+};
+
+&uart5 {
+       // BMC Debug Console
+       status = "okay";
+};
+
+&uart_routing {
+       status = "okay";
+};
+
+&mac2 {
+       status = "okay";
+       phy-mode = "rmii";
+       use-ncsi;
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_rmii3_default>;
+};
+
+/*
+ * Enable USB port A as device (via the virtual hub) to host
+ */
+&vhub {
+       status = "okay";
+};
+
+&video {
+       status = "okay";
+       memory-region = <&video_engine_memory>;
+};
+
+// USB 2.0 to HMC, on USB Port B
+&ehci1 {
+       status = "okay";
+};
+
+// USB 1.0
+&uhci {
+       status = "okay";
+};
+
+&sgpiom0 {
+       status="okay";
+       ngpios = <128>;
+       gpio-line-names =
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "RUN_POWER_FAULT_L-I","SYS_RST_IN_L-O",
+               "RUN_POWER_PG-I","PWR_BRAKE_L-O",
+               "SYS_RST_OUT_L-I","RUN_POWER_EN-O",
+               "L0L1_RST_REQ_OUT_L-I","SHDN_FORCE_L-O",
+               "L2_RST_REQ_OUT_L-I","SHDN_REQ_L-O",
+               "SHDN_OK_L-I","UID_LED_N-O",
+               "BMC_I2C1_FPGA_ALERT_L-I","SYS_FAULT_LED_N-O",
+               "BMC_I2C0_FPGA_ALERT_L-I","PWR_LED_N-O",
+               "FPGA_RSVD_FFU3-I","",
+               "FPGA_RSVD_FFU2-I","",
+               "FPGA_RSVD_FFU1-I","",
+               "FPGA_RSVD_FFU0-I","BMC_I2C_SSIF_ALERT_L-O",
+               "CPU_BOOT_DONE-I","JTAG_MUX_SELECT-O",
+               "SPI_BMC_FPGA_INT_L-I","RTC_CLR_L-O",
+               "THERM_BB_WARN_L-I","UART_MUX_SEL-O",
+               "THERM_BB_OVERT_L-I","",
+               "CPU0_UPHY3_PRSNT1_L-I","IOBRD0_RUN_POWER_EN-O",
+               "CPU0_UPHY3_PRSNT0_L-I","IOBRD1_RUN_POWER_EN-O",
+               "CPU0_UPHY2_PRSNT1_L-I","FPGA_RSVD_FFU4-O",
+               "CPU0_UPHY2_PRSNT0_L-I","FPGA_RSVD_FFU5-O",
+               "CPU0_UPHY1_PRSNT1_L-I","FPGA_RSVD_FFU6-O",
+               "CPU0_UPHY1_PRSNT0_L-I","FPGA_RSVD_FFU7-O",
+               "CPU0_UPHY0_PRSNT1_L-I","RSVD_NV_PLT_DETECT-O",
+               "CPU0_UPHY0_PRSNT0_L-I","SPI1_INT_L-O",
+               "CPU1_UPHY3_PRSNT1_L-I","",
+               "CPU1_UPHY3_PRSNT0_L-I","HMC_EROT_MUX_STATUS",
+               "CPU1_UPHY2_PRSNT1_L-I","",
+               "CPU1_UPHY2_PRSNT0_L-I","",
+               "CPU1_UPHY1_PRSNT1_L-I","",
+               "CPU1_UPHY1_PRSNT0_L-I","",
+               "CPU1_UPHY0_PRSNT1_L-I","",
+               "CPU1_UPHY0_PRSNT0_L-I","",
+               "FAN1_PRESENT_L-I","",
+               "FAN0_PRESENT_L-I","",
+               "","",
+               "IPEX_CABLE_PRSNT_L-I","",
+               "M2_1_PRSNT_L-I","",
+               "M2_0_PRSNT_L-I","",
+               "CPU1_UPHY4_PRSNT1_L-I","",
+               "CPU0_UPHY4_PRSNT0_L-I","",
+               "","",
+               "I2C_RTC_ALERT_L-I","",
+               "FAN7_PRESENT_L-I","",
+               "FAN6_PRESENT_L-I","",
+               "FAN5_PRESENT_L-I","",
+               "FAN4_PRESENT_L-I","",
+               "FAN3_PRESENT_L-I","",
+               "FAN2_PRESENT_L-I","",
+               "IOBRD0_IOX_INT_L-I","",
+               "IOBRD1_PRSNT_L-I","",
+               "IOBRD0_PRSNT_L-I","",
+               "IOBRD1_PWR_GOOD-I","",
+               "IOBRD0_PWR_GOOD-I","",
+               "","",
+               "","",
+               "FAN_FAIL_IN_L-I","",
+               "","",
+               "","",
+               "","",
+               "PDB_CABLE_PRESENT_L-I","",
+               "","",
+               "CHASSIS_PWR_BRK_L-I","",
+               "","",
+               "IOBRD1_IOX_INT_L-I","",
+               "10GBE_SMBALRT_L-I","",
+               "PCIE_WAKE_L-I","",
+               "I2C_M21_ALERT_L-I","",
+               "I2C_M20_ALERT_L-I","",
+               "TRAY_FAST_SHDN_L-I","",
+               "UID_BTN_N-I","",
+               "PWR_BTN_L-I","",
+               "PSU_SMB_ALERT_L-I","",
+               "","",
+               "","",
+               "NODE_LOC_ID[0]-I","",
+               "NODE_LOC_ID[1]-I","",
+               "NODE_LOC_ID[2]-I","",
+               "NODE_LOC_ID[3]-I","",
+               "NODE_LOC_ID[4]-I","",
+               "NODE_LOC_ID[5]-I","",
+               "FAN10_PRESENT_L-I","",
+               "FAN9_PRESENT_L-I","",
+               "FAN8_PRESENT_L-I","",
+               "FPGA1_READY_HMC-I","",
+               "DP_HPD-I","",
+               "HMC_I2C3_FPGA_ALERT_L-I","",
+               "HMC_I2C2_FPGA_ALERT_L-I","",
+               "FPGA0_READY_HMC-I","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "LEAK_DETECT_ALERT_L-I","",
+               "MOD1_B2B_CABLE_PRESENT_L-I","",
+               "MOD1_CLINK_CABLE_PRESENT_L-I","",
+               "FAN11_PRESENT_L-I","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "","",
+               "RSVD_SGPIO_IN_CRC[0]","RSVD_SGPIO_O_CRC[7]",
+               "RSVD_SGPIO_IN_CRC[1]","RSVD_SGPIO_O_CRC[6]",
+               "RSVD_SGPIO_IN_CRC[2]","RSVD_SGPIO_O_CRC[5]",
+               "RSVD_SGPIO_IN_CRC[3]","RSVD_SGPIO_O_CRC[4]",
+               "RSVD_SGPIO_IN_CRC[4]","RSVD_SGPIO_O_CRC[3]",
+               "RSVD_SGPIO_IN_CRC[5]","RSVD_SGPIO_O_CRC[2]",
+               "RSVD_SGPIO_IN_CRC[6]","RSVD_SGPIO_O_CRC[1]",
+               "RSVD_SGPIO_IN_CRC[7]","RSVD_SGPIO_O_CRC[0]";
+};
+
+// I2C1, SSIF IPMI interface
+&i2c0 {
+       status = "okay";
+       clock-frequency = <400000>;
+
+       ssif-bmc@10 {
+               compatible = "ssif-bmc";
+               reg = <0x10>;
+       };
+};
+
+// I2C2
+// BMC_I2C1_FPGA - Secondary FPGA
+// HMC EROT
+&i2c1 {
+       status = "okay";
+       clock-frequency = <400000>;
+       multi-master;
+};
+
+// I2C3
+// BMC_I2C0_FPGA - Primary FPGA
+// HMC FRU EEPROM
+&i2c2 {
+       status = "okay";
+       clock-frequency = <400000>;
+       multi-master;
+};
+
+// I2C4
+&i2c3 {
+       status = "disabled";
+};
+
+// I2C5
+// RTC Driver
+// IO Expander
+&i2c4 {
+       status = "okay";
+       clock-frequency = <400000>;
+
+       // Module 0, Expander @0x21
+       exp4: gpio@21 {
+               compatible = "nxp,pca9555";
+               reg = <0x21>;
+               gpio-controller;
+               #gpio-cells = <2>;
+               interrupt-controller;
+               #interrupt-cells = <2>;
+               interrupt-parent = <&gpio1>;
+               interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+               gpio-line-names =
+                       "RTC_MUX_SEL-O",
+                       "PCI_MUX_SEL-O",
+                       "TPM_MUX_SEL-O",
+                       "FAN_MUX-SEL-O",
+                       "SGMII_MUX_SEL-O",
+                       "DP_MUX_SEL-O",
+                       "UPHY3_USB_SEL-O",
+                       "NCSI_MUX_SEL-O",
+                       "BMC_PHY_RST-O",
+                       "RTC_CLR_L-O",
+                       "BMC_12V_CTRL-O",
+                       "PS_RUN_IO0_PG-I",
+                       "",
+                       "",
+                       "",
+                       "";
+       };
+};
+
+// I2C6
+// Module 0/1 I2C MUX x3
+&i2c5 {
+       status = "okay";
+       clock-frequency = <400000>;
+       multi-master;
+
+       i2c-mux@71 {
+               compatible = "nxp,pca9546";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x71>;
+               i2c-mux-idle-disconnect;
+
+               imux16: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+               };
+
+               imux17: i2c@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+
+                       i2c-mux@74 {
+                               compatible = "nxp,pca9546";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x74>;
+                               i2c-mux-idle-disconnect;
+
+                               i2c17mux0: i2c@0 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0>;
+                               };
+
+                               i2c17mux1: i2c@1 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <1>;
+                               };
+
+                               i2c17mux2: i2c@2 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <2>;
+                               };
+
+                               i2c17mux3: i2c@3 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <3>;
+                               };
+                       };
+               };
+
+               imux18: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <2>;
+               };
+
+               imux19: i2c@3 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <3>;
+               };
+       };
+
+       i2c-mux@72 {
+               compatible = "nxp,pca9546";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x72>;
+               i2c-mux-idle-disconnect;
+
+               imux20: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+               };
+
+               imux21: i2c@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+
+                       gpio@21 {
+                               compatible = "nxp,pca9555";
+                               reg = <0x21>;
+                               gpio-controller;
+                               #gpio-cells = <2>;
+                               gpio-line-names =
+                                       "RST_CX_0_L-O",
+                                       "RST_CX_1_L-O",
+                                       "CX0_SSD0_PRSNT_L-I",
+                                       "CX1_SSD1_PRSNT_L-I",
+                                       "CX_BOOT_CMPLT_CX0-I",
+                                       "CX_BOOT_CMPLT_CX1-I",
+                                       "CX_TWARN_CX0_L-I",
+                                       "CX_TWARN_CX1_L-I",
+                                       "CX_OVT_SHDN_CX0-I",
+                                       "CX_OVT_SHDN_CX1-I",
+                                       "FNP_L_CX0-O",
+                                       "FNP_L_CX1-O",
+                                       "",
+                                       "MCU_GPIO-I",
+                                       "MCU_RST_N-O",
+                                       "MCU_RECOVERY_N-O";
+                       };
+               };
+
+               imux22: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <2>;
+               };
+
+               imux23: i2c@3 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <3>;
+               };
+       };
+
+       i2c-mux@73 {
+               compatible = "nxp,pca9546";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x73>;
+               i2c-mux-idle-disconnect;
+
+               imux24: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+               };
+
+               imux25: i2c@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+
+                       i2c-mux@70 {
+                               compatible = "nxp,pca9546";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x70>;
+                               i2c-mux-idle-disconnect;
+
+                               i2c25mux0: i2c@0 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0>;
+                               };
+
+                               i2c25mux1: i2c@1 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <1>;
+                               };
+
+                               i2c25mux2: i2c@2 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <2>;
+                               };
+
+                               i2c25mux3: i2c@3 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <3>;
+                               };
+                       };
+               };
+
+               imux26: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <2>;
+               };
+
+               imux27: i2c@3 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <3>;
+               };
+       };
+
+       i2c-mux@75 {
+               compatible = "nxp,pca9546";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x75>;
+               i2c-mux-idle-disconnect;
+
+               imux28: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+               };
+
+               imux29: i2c@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+
+                       i2c-mux@74 {
+                               compatible = "nxp,pca9546";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x74>;
+                               i2c-mux-idle-disconnect;
+
+                               i2c29mux0: i2c@0 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0>;
+                               };
+
+                               i2c29mux1: i2c@1 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <1>;
+                               };
+
+                               i2c29mux2: i2c@2 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <2>;
+                               };
+
+                               i2c29mux3: i2c@3 {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <3>;
+                               };
+                       };
+               };
+
+               imux30: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <2>;
+               };
+
+               imux31: i2c@3 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <3>;
+               };
+       };
+
+       i2c-mux@76 {
+               compatible = "nxp,pca9546";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x76>;
+               i2c-mux-idle-disconnect;
+
+               imux32: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+               };
+
+               imux33: i2c@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+
+                       gpio@21 {
+                               compatible = "nxp,pca9555";
+                               reg = <0x21>;
+                               gpio-controller;
+                               #gpio-cells = <2>;
+                               gpio-line-names =
+                                       "SEC_RST_CX_0_L-O",
+                                       "SEC_RST_CX_1_L-O",
+                                       "SEC_CX0_SSD0_PRSNT_L-I",
+                                       "SEC_CX1_SSD1_PRSNT_L-I",
+                                       "SEC_CX_BOOT_CMPLT_CX0-I",
+                                       "SEC_CX_BOOT_CMPLT_CX1-I",
+                                       "SEC_CX_TWARN_CX0_L-I",
+                                       "SEC_CX_TWARN_CX1_L-I",
+                                       "SEC_CX_OVT_SHDN_CX0-I",
+                                       "SEC_CX_OVT_SHDN_CX1-I",
+                                       "SEC_FNP_L_CX0-O",
+                                       "SEC_FNP_L_CX1-O",
+                                       "",
+                                       "SEC_MCU_GPIO-I",
+                                       "SEC_MCU_RST_N-O",
+                                       "SEC_MCU_RECOVERY_N-O";
+                               };
+               };
+
+               imux34: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <2>;
+               };
+
+               imux35: i2c@3 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <3>;
+               };
+       };
+
+       i2c-mux@77 {
+               compatible = "nxp,pca9546";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x77>;
+               i2c-mux-idle-disconnect;
+
+               imux36: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+               };
+
+               imux37: i2c@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+               };
+
+               imux38: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <2>;
+               };
+
+               imux39: i2c@3 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <3>;
+               };
+       };
+};
+
+// I2C7
+// Module 0/1 Leak Sensors
+// Module 0/1 Fan Controllers
+&i2c6 {
+       status = "okay";
+       clock-frequency = <400000>;
+
+       pmic@12 {
+               compatible = "ti,lm5066i";
+               reg = <0x12>;
+               shunt-resistor-micro-ohms = <190>;
+               status = "okay";
+       };
+
+       pmic@14 {
+               compatible = "ti,lm5066i";
+               reg = <0x14>;
+               shunt-resistor-micro-ohms = <190>;
+               status = "okay";
+       };
+
+       pwm@20 {
+               compatible = "maxim,max31790";
+               reg = <0x20>;
+       };
+
+       pwm@23 {
+               compatible = "maxim,max31790";
+               reg = <0x23>;
+       };
+
+       pwm@2c {
+               compatible = "maxim,max31790";
+               reg = <0x2c>;
+       };
+
+       pwm@2f {
+               compatible = "maxim,max31790";
+               reg = <0x2f>;
+       };
+};
+
+// I2C9
+// M.2
+&i2c8 {
+       status = "okay";
+       clock-frequency = <400000>;
+       multi-master;
+};
+
+// I2C10
+// HMC IO Expander
+// Module 0/1 IO Expanders
+&i2c9 {
+       status = "okay";
+       clock-frequency = <400000>;
+
+       // Module 0, Expander @0x20
+       exp0: gpio@20 {
+               compatible = "nxp,pca9555";
+               reg = <0x20>;
+               gpio-controller;
+               #gpio-cells = <2>;
+               interrupt-controller;
+               #interrupt-cells = <2>;
+               interrupt-parent = <&gpio1>;
+               interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+               gpio-line-names =
+                       "FPGA_THERM_OVERT_L-I",
+                       "FPGA_READY_BMC-I",
+                       "HMC_BMC_DETECT-O",
+                       "HMC_PGOOD-O",
+                       "",
+                       "BMC_STBY_CYCLE-O",
+                       "FPGA_EROT_FATAL_ERROR_L-I",
+                       "WP_HW_EXT_CTRL_L-O",
+                       "EROT_FPGA_RST_L-O",
+                       "FPGA_EROT_RECOVERY_L-O",
+                       "BMC_EROT_FPGA_SPI_MUX_SEL-O",
+                       "USB_HUB_RESET_L-O",
+                       "NCSI_CS1_SEL-O",
+                       "SGPIO_EN_L-O",
+                       "B2B_IOEXP_INT_L-I",
+                       "I2C_BUS_MUX_RESET_L-O";
+       };
+
+       // Module 1, Expander @0x21
+       exp1: gpio@21 {
+               compatible = "nxp,pca9555";
+               reg = <0x21>;
+               gpio-controller;
+               #gpio-cells = <2>;
+               interrupt-controller;
+               #interrupt-cells = <2>;
+               interrupt-parent = <&gpio1>;
+               interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+               gpio-line-names =
+                       "SEC_FPGA_THERM_OVERT_L-I",
+                       "SEC_FPGA_READY_BMC-I",
+                       "",
+                       "",
+                       "",
+                       "",
+                       "SEC_FPGA_EROT_FATAL_ERROR_L-I",
+                       "SEC_WP_HW_EXT_CTRL_L-O",
+                       "SEC_EROT_FPGA_RST_L-O",
+                       "SEC_FPGA_EROT_RECOVERY_L-O",
+                       "SEC_BMC_EROT_FPGA_SPI_MUX_SEL-O",
+                       "SEC_USB2_HUB_RST_L-O",
+                       "",
+                       "",
+                       "",
+                       "SEC_I2C_BUS_MUX_RESET_L-O";
+       };
+
+       // HMC Expander @0x27
+       exp2: gpio@27 {
+               compatible = "nxp,pca9555";
+               reg = <0x27>;
+               gpio-controller;
+               #gpio-cells = <2>;
+               interrupt-controller;
+               #interrupt-cells = <2>;
+               interrupt-parent = <&gpio1>;
+               interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+               gpio-line-names =
+                       "HMC_PRSNT_L-I",
+                       "HMC_READY-I",
+                       "HMC_EROT_FATAL_ERROR_L-I",
+                       "I2C_MUX_SEL-O",
+                       "HMC_EROT_SPI_MUX_SEL-O",
+                       "HMC_EROT_RECOVERY_L-O",
+                       "HMC_EROT_RST_L-O",
+                       "GLOBAL_WP_HMC-O",
+                       "FPGA_RST_L-O",
+                       "USB2_HUB_RST-O",
+                       "CPU_UART_MUX_SEL-O",
+                       "",
+                       "",
+                       "",
+                       "",
+                       "";
+       };
+
+       // HMC Expander @0x74
+       exp3: gpio@74 {
+               compatible = "nxp,pca9555";
+               reg = <0x74>;
+               gpio-controller;
+               #gpio-cells = <2>;
+               interrupt-controller;
+               #interrupt-cells = <2>;
+               interrupt-parent = <&gpio1>;
+               interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+               gpio-line-names =
+                       "IOB_PRSNT_L",
+                       "IOB_DP_HPD",
+                       "IOX_BMC_RESET",
+                       "IOB_IOEXP_INT_L",
+                       "IOB_UID_LED_L",
+                       "IOB_UID_BTN_L",
+                       "IOB_SYS_RST_BTN_L",
+                       "IOB_PWR_LED_L",
+                       "IOB_PWR_BTN_L",
+                       "IOB_PHY_RST",
+                       "CPLD_JTAG_MUX_SEL",
+                       "",
+                       "",
+                       "",
+                       "",
+                       "";
+       };
+};
+
+// I2C11
+// BMC FRU EEPROM
+// BMC Temp Sensor
+&i2c10 {
+       status = "okay";
+       clock-frequency = <400000>;
+
+       // BMC FRU EEPROM - 256 bytes
+       eeprom@50 {
+               compatible = "atmel,24c02";
+               reg = <0x50>;
+               pagesize = <8>;
+       };
+};
+
+// I2C12
+&i2c11 {
+       status = "disabled";
+};
+
+// I2C13
+&i2c12 {
+       status = "disabled";
+};
+
+// I2C14
+// Module 0 UPHY3 SMBus
+&i2c13 {
+       status = "disabled";
+};
+
+// I2C15
+// Module 1 UPHY3 SMBus
+&i2c14 {
+       status = "okay";
+       clock-frequency = <100000>;
+       multi-master;
+
+       //E1.S drive slot 0-3
+       i2c-mux@77 {
+               compatible = "nxp,pca9546";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x77>;
+               i2c-mux-idle-disconnect;
+
+               e1si2c0: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+               };
+
+               e1si2c1: i2c@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+               };
+
+               e1si2c2: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <2>;
+               };
+
+               e1si2c3: i2c@3 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <3>;
+               };
+       };
+};
+
+// I2C16
+&i2c15 {
+       status = "okay";
+       clock-frequency = <100000>;
+       multi-master;
+
+       //E1.S drive slot 4-7
+       i2c-mux@77 {
+               compatible = "nxp,pca9546";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               reg = <0x77>;
+               i2c-mux-idle-disconnect;
+
+               e1si2c4: i2c@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+               };
+
+               e1si2c5: i2c@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+               };
+
+               e1si2c6: i2c@2 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <2>;
+               };
+
+               e1si2c7: i2c@3 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <3>;
+               };
+       };
+};
+
+&rng {
+       status = "okay";
+};
+
+&gpio0 {
+       gpio-line-names =
+               /*A0-A7*/ "", "", "", "", "", "", "", "",
+               /*B0-B7*/ "", "", "", "", "", "", "", "",
+               /*C0-C7*/ "SGPIO_I2C_MUX_SEL-O", "", "", "", "", "", "", "",
+               /*D0-D7*/ "", "", "", "UART1_MUX_SEL-O", "", "FPGA_PEX_RST_L-O", "", "",
+               /*E0-E7*/ "RTL8221_PHY_RST_L-O", "RTL8211_PHY_INT_L-I", "", "UART3_MUX_SEL-O",
+                                       "", "", "", "SGPIO_BMC_EN-O",
+               /*F0-F7*/ "", "", "", "", "", "", "", "",
+               /*G0-G7*/ "", "", "", "", "", "", "", "",
+               /*H0-H7*/ "", "", "", "", "", "", "", "",
+               /*I0-I7*/ "", "", "", "", "", "QSPI2_RST_L-O", "GLOBAL_WP_BMC-O", "BMC_DDR4_TEN-O",
+               /*J0-J7*/ "", "", "", "", "", "", "", "",
+               /*K0-K7*/ "", "", "", "", "", "", "", "",
+               /*L0-L7*/ "", "", "", "", "", "", "", "",
+               /*M0-M7*/ "PCIE_EP_RST_EN-O", "BMC_FRU_WP-O", "HMC_RESET_L-O", "STBY_POWER_EN-O",
+                                       "STBY_POWER_PG-I", "PCIE_EP_RST_L-O", "", "",
+               /*N0-N7*/ "", "", "", "", "", "", "", "",
+               /*O0-O7*/ "", "", "", "", "", "", "", "",
+               /*P0-P7*/ "", "", "", "", "", "", "", "",
+               /*Q0-Q7*/ "", "", "", "", "", "", "", "",
+               /*R0-R7*/ "", "", "", "", "", "", "", "",
+               /*S0-S7*/ "", "", "", "", "", "", "", "",
+               /*T0-T7*/ "", "", "", "", "", "", "", "",
+               /*U0-U7*/ "", "", "", "", "", "", "", "",
+               /*V0-V7*/ "AP_EROT_REQ-O", "EROT_AP_GNT-I", "", "","PCB_TEMP_ALERT-I", "","", "",
+               /*W0-W7*/ "", "", "", "", "", "", "", "",
+               /*X0-X7*/ "", "", "TPM_MUX_SEL-O", "", "", "", "", "",
+               /*Y0-Y7*/ "", "", "", "EMMC_RST-O", "","", "", "",
+               /*Z0-Z7*/ "BMC_READY-O","", "", "", "", "", "", "";
+};
+
+&gpio1 {
+       /* 36 1.8V GPIOs */
+       gpio-line-names =
+               /*A0-A7*/ "", "", "", "", "", "", "", "",
+               /*B0-B7*/ "", "", "", "", "", "", "IO_EXPANDER_INT_L-I","",
+               /*C0-C7*/ "", "", "", "", "", "", "", "",
+               /*D0-D7*/ "", "", "", "", "", "", "SPI_HOST_TPM_RST_L-O", "SPI_BMC_FPGA_INT_L-I",
+               /*E0-E7*/ "", "", "", "", "", "", "", "";
+};