The Mt. Mitchell BMC is an ASPEED AST2600-based BMC for the Mt. Mitchell
hardware reference platform with AmpereOne(TM) processor.
Signed-off-by: Quan Nguyen <quan@xxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Phong Vo <phong@xxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Thang Q. Nguyen <thang@xxxxxxxxxxxxxxxxxxxxxx>
---
arch/arm/boot/dts/Makefile | 1 +
.../boot/dts/aspeed-bmc-ampere-mtmitchell.dts | 579 ++++++++++++++++++
2 files changed, 580 insertions(+)
create mode 100644 arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 5112f493f494..93c236c14fa0 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1558,6 +1558,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
aspeed-ast2600-evb.dtb \
aspeed-bmc-amd-ethanolx.dtb \
aspeed-bmc-ampere-mtjade.dtb \
+ aspeed-bmc-ampere-mtmitchell.dtb \
aspeed-bmc-arm-centriq2400-rep.dtb \
aspeed-bmc-arm-stardragon4800-rep2.dtb \
aspeed-bmc-asrock-e3c246d4i.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
new file mode 100644
index 000000000000..42425e13030a
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts
@@ -0,0 +1,579 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright 2022 Ampere Computing LTC.
+
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+ model = "Ampere Mt.Mitchell BMC";
+ compatible = "ampere,mtmitchell-bmc", "aspeed,ast2600";
+
+ chosen {
+ stdout-path = &uart5;
+ bootargs = "console=ttyS4,115200n8 earlycon";
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0x80000000 0x80000000>;
+ };
+
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ gfx_memory: framebuffer {
+ size = <0x01000000>;
+ alignment = <0x01000000>;
+ compatible = "shared-dma-pool";
+ reusable;
+ };
+
+ video_engine_memory: video {
+ size = <0x04000000>;
+ alignment = <0x01000000>;
+ compatible = "shared-dma-pool";
+ reusable;
+ };
+
+ /* 1GB memory */
+ vga_memory: region@bf000000 {
+ no-map;
+ compatible = "shared-dma-pool";
+ reg = <0xbf000000 0x01000000>; /* 16M */
+ };
+
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ S0_overtemp {
+ label = "S0_OVERTEMP";
+ gpios = <&gpio0 ASPEED_GPIO(V, 7) GPIO_ACTIVE_LOW>;
+ linux,code = <ASPEED_GPIO(V, 7)>;
+ };
+
+ S0_hightemp {
+ label = "S0_HIGHTEMP";
+ gpios = <&gpio0 ASPEED_GPIO(V, 0) GPIO_ACTIVE_LOW>;
+ linux,code = <ASPEED_GPIO(V, 0)>;
+ };
+
+ S1_overtemp {
+ label = "S1_OVERTEMP";
+ gpios = <&gpio0 ASPEED_GPIO(X, 6) GPIO_ACTIVE_LOW>;
+ linux,code = <ASPEED_GPIO(X, 6)>;
+ };
+
+ S1_hightemp {
+ label = "S1_HIGHTEMP";
+ gpios = <&gpio0 ASPEED_GPIO(X, 3) GPIO_ACTIVE_LOW>;
+ linux,code = <ASPEED_GPIO(X, 3)>;
+ };
+ };
+
+ ltc2497_reg: ltc2497_regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "ltc2497_reg";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ gpioI5mux: mux-controller {
+ compatible = "gpio-mux";
+ #mux-control-cells = <0>;
+ mux-gpios = <&gpio0 ASPEED_GPIO(I, 5) GPIO_ACTIVE_HIGH>;
+ };
+
+ adc0mux: adc0mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc0 0>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc1mux: adc1mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc0 1>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc2mux: adc2mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc0 2>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc3mux: adc3mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc0 3>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc4mux: adc4mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc0 4>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc5mux: adc5mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc0 5>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc6mux: adc6mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc0 6>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc7mux: adc7mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc0 7>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc8mux: adc8mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc1 0>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc9mux: adc9mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc1 1>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc10mux: adc10mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc1 2>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc11mux: adc11mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc1 3>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc12mux: adc12mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc1 4>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc13mux: adc13mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc1 5>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc14mux: adc14mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc1 6>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ adc15mux: adc15mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc1 7>;
+ #io-channel-cells = <1>;
+ io-channel-names = "parent";
+ mux-controls = <&gpioI5mux>;
+ channels = "s0", "s1";
+ };
+
+ iio-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&adc0mux 0>, <&adc0mux 1>,
+ <&adc1mux 0>, <&adc1mux 1>,
+ <&adc2mux 0>, <&adc2mux 1>,
+ <&adc3mux 0>, <&adc3mux 1>,
+ <&adc4mux 0>, <&adc4mux 1>,
+ <&adc5mux 0>, <&adc5mux 1>,
+ <&adc6mux 0>, <&adc6mux 1>,
+ <&adc7mux 0>, <&adc7mux 1>,
+ <&adc8mux 0>, <&adc8mux 1>,
+ <&adc9mux 0>, <&adc9mux 1>,
+ <&adc10mux 0>, <&adc10mux 1>,
+ <&adc11mux 0>, <&adc11mux 1>,
+ <&adc12mux 0>, <&adc12mux 1>,
+ <&adc13mux 0>, <&adc13mux 1>,
+ <&adc14mux 0>, <&adc14mux 1>,
+ <&adc15mux 0>, <&adc15mux 1>,
+ <<c2497 0>, <<c2497 1>,
+ <<c2497 2>, <<c2497 3>,
+ <<c2497 4>, <<c2497 5>,
+ <<c2497 6>, <<c2497 7>,
+ <<c2497 8>, <<c2497 9>,
+ <<c2497 10>, <<c2497 11>,
+ <<c2497 12>, <<c2497 13>,
+ <<c2497 14>, <<c2497 15>;
+ };
+};
+
+&mdio0 {
+ status = "okay";
+
+ ethphy0: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ };
+};
+
+&mac0 {
+ status = "okay";
+
+ phy-mode = "rgmii";
+ phy-handle = <ðphy0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_rgmii1_default>;
+};
+
+&fmc {
+ status = "okay";
+ flash@0 {
+ status = "okay";
+ m25p,fast-read;
+ label = "bmc";
+ spi-max-frequency = <50000000>;
+#include "openbmc-flash-layout-64.dtsi"
+ };
+
+ flash@1 {
+ status = "okay";
+ m25p,fast-read;
+ label = "alt-bmc";
+ spi-max-frequency = <50000000>;
+#include "openbmc-flash-layout-64-alt.dtsi"
+ };
+};
+
+&spi1 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spi1_default>;
+
+ flash@0 {
+ status = "okay";
+ m25p,fast-read;
+ label = "pnor";
+ spi-max-frequency = <20000000>;
+ };
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart3 {
+ status = "okay";
+};
+
+&uart4 {
+ status = "okay";
+};
+
+&i2c0 {
+ status = "okay";
+
+ temp@2e {
+ compatible = "adi,adt7490";
+ reg = <0x2e>;
+ };
+};
+
+&i2c1 {
+ status = "okay";
+};
+
+&i2c2 {
+ status = "okay";
+
+ psu@58 {
+ compatible = "pmbus";
+ reg = <0x58>;
+ };
+
+ psu@59 {
+ compatible = "pmbus";
+ reg = <0x59>;
+ };
+};
+
+&i2c3 {
+ status = "okay";
+};
+
+&i2c4 {
+ status = "okay";
+
+ ltc2497: ltc2497@16 {
+ compatible = "lltc,ltc2497";
+ reg = <0x16>;
+ vref-supply = <<c2497_reg>;
+ #io-channel-cells = <1>;
+ status = "okay";
+ };
+
+ eeprom@50 {
+ compatible = "atmel,24c64";
+ reg = <0x50>;
+ pagesize = <32>;
+ };
+
+ i2c-mux@70 {
+ compatible = "nxp,pca9545";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ i2c4_bus70_chn0: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+
+ outlet_temp1: tmp75@48 {
+ compatible = "ti,tmp75";
+ reg = <0x48>;
+ };
+ psu1_inlet_temp2: tmp75@49 {
+ compatible = "ti,tmp75";
+ reg = <0x49>;
+ };
+ };
+
+ i2c4_bus70_chn1: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1>;
+
+ pcie_zone_temp1: tmp75@48 {
+ compatible = "ti,tmp75";
+ reg = <0x48>;
+ };
+ psu0_inlet_temp2: tmp75@49 {
+ compatible = "ti,tmp75";
+ reg = <0x49>;
+ };
+ };
+
+ i2c4_bus70_chn2: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2>;
+
+ pcie_zone_temp2: tmp75@48 {
+ compatible = "ti,tmp75";
+ reg = <0x48>;
+ };
+ outlet_temp2: tmp75@49 {
+ compatible = "ti,tmp75";
+ reg = <0x49>;
+ };
+ };
+
+ i2c4_bus70_chn3: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x3>;
+
+ mb_inlet_temp1: tmp75@7c {
+ compatible = "microchip,emc1413";
+ reg = <0x7c>;
+ };
+ mb_inlet_temp2: tmp75@4c {
+ compatible = "microchip,emc1413";
+ reg = <0x4c>;
+ };
+ };
+ };
+};
+
+&i2c5 {
+ status = "okay";
+
+ i2c-mux@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+ };
+};
+
+&i2c6 {
+ status = "okay";
+ rtc@51 {
+ compatible = "nxp,pcf85063a";
+ reg = <0x51>;
+ };
+};
+
+&i2c7 {
+ status = "okay";
+};
+
+&i2c9 {
+ status = "okay";
+};
+
+&i2c11 {
+ status = "okay";
+};
+
+&i2c14 {
+ status = "okay";
+ eeprom@50 {
+ compatible = "atmel,24c64";
+ reg = <0x50>;
+ pagesize = <32>;
+ };
+
+ bmc_ast2600_cpu: tmp175@35 {
+ compatible = "ti,tmp175";
+ reg = <0x35>;
+ };
+};
+
+&adc0 {
+ ref_voltage = <2500>;
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adc0_default &pinctrl_adc1_default
+ &pinctrl_adc2_default &pinctrl_adc3_default
+ &pinctrl_adc4_default &pinctrl_adc5_default
+ &pinctrl_adc6_default &pinctrl_adc7_default>;
+};
+
+&adc1 {
+ ref_voltage = <2500>;
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adc8_default &pinctrl_adc9_default
+ &pinctrl_adc10_default &pinctrl_adc11_default
+ &pinctrl_adc12_default &pinctrl_adc13_default
+ &pinctrl_adc14_default &pinctrl_adc15_default>;
+};
+
+&vhub {
+ status = "okay";
+};
+
+&video {
+ status = "okay";
+ memory-region = <&video_engine_memory>;
+};
+
+&gpio0 {
+ gpio-line-names =
+ /*A0-A7*/ "","","","","","i2c2-reset-n","i2c6-reset-n","i2c4-reset-n",
+ /*B0-B7*/ "","","","","host0-sysreset-n","host0-pmin-n","","",
+ /*C0-C7*/ "s0-vrd-fault-n","s1-vrd-fault-n","bmc-debug-mode","",
+ "irq-n","","vrd-sel","spd-sel",
+ /*D0-D7*/ "presence-ps0","presence-ps1","hsc-12vmain-alt2-n","ext-high-temp-n",
+ "","bmc-ncsi-txen","","",
+ /*E0-E7*/ "eth-phy-rst-n","eth-phy-int-n","clk50m-bmc-ncsi","","","","","",
+ /*F0-F7*/ "s0-pcp-oc-warn-n","s1-pcp-oc-warn-n","power-chassis-control",
+ "cpu-bios-recover","cpld-done","hs-scout-proc-hot",
+ "s0-vr-hot-n","s1-vr-hot-n",
+ /*G0-G7*/ "","","hsc-12vmain-alt1-n","bmc-salt12-s0-ssif-n","","","","",
+ /*H0-H7*/ "","fpga-program-b","wd-disable-n","power-chassis-good","","","","",
+ /*I0-I7*/ "","","","","","adc-sw","power-button","rtc-battery-voltage-read-enable",
+ /*J0-J7*/ "","","","","","","","",
+ /*K0-K7*/ "","","","","","","","",
+ /*L0-L7*/ "","","","","","","","",
+ /*M0-M7*/ "bmc-uart-cts1","s0-ddr-save","soc-spi-nor-access","presence-cpu0",
+ "s0-rtc-lock","","","",
+ /*N0-N7*/ "hpm-fw-recovery","hpm-stby-rst-n","jtag-sel-s0","led-sw-hb",
+ "jtag-dbgr-prsnt-n","","","",
+ /*O0-O7*/ "","","","","","","","",
+ /*P0-P7*/ "ps0-ac-loss-n","ps1-ac-loss-n","","",
+ "led-fault","cpld-user-mode","jtag-srst-n","led-bmc-hb",
+ /*Q0-Q7*/ "","","","","","","","",
+ /*R0-R7*/ "","","","","","","","",
+ /*S0-S7*/ "","","identify-button","led-identify",
+ "s1-ddr-save","spi-nor-access","sys-pgood","presence-cpu1",
+ /*T0-T7*/ "","","","","","","","",
+ /*U0-U7*/ "","","","","","","","",
+ /*V0-V7*/ "s0-hightemp-n","s0-fault-alert","s0-sys-auth-failure-n",
+ "host0-reboot-ack-n","host0-ready","host0-shd-req-n",
+ "host0-shd-ack-n","s0-overtemp-n",
+ /*W0-W7*/ "ocp-aux-pwren","ocp-main-pwren","ocp-pgood","",
+ "bmc-ok","bmc-ready","spi0-program-sel","spi0-backup-sel",
+ /*X0-X7*/ "i2c-backup-sel","s1-fault-alert","s1-fw-boot-ok",
+ "s1-hightemp-n","s0-spi-auth-fail-n","s1-sys-auth-failure-n",
+ "s1-overtemp-n","cpld-s1-spi-auth-fail-n",
+ /*Y0-Y7*/ "","","","","","","bmc-spi-fm-boot-abr-pd","host0-special-boot",
+ /*Z0-Z7*/ "reset-button","ps0-pgood","ps1-pgood","","","","","";
+};
+
+&gpio1 {
+ gpio-line-names =
+ /*18A0-18A7*/ "","","","","","","","",
+ /*18B0-18B7*/ "","","","","emmc-rst-n","","s0-soc-pgood","",
+ /*18C0-18C7*/ "uart1-mode0","uart1-mode1","uart2-mode0","uart2-mode1",
+ "uart3-mode0","uart3-mode1","uart4-mode0","uart4-mode1",
+ /*18D0-18D7*/ "","","","","","","","",
+ /*18E0-18E3*/ "","","","";
+};
+
--
2.35.1
