Re: [PATCH] ARM: dts: aspeed: Add device tree for Ampere's Mt. Jefferson BMC

From: Chanh Nguyen
Date: Mon Oct 14 2024 - 06:57:32 EST

Hi @Andrew, I just upstreamed the patch https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/Documentation/devicetree/bindings/trivial-devices.yaml?id=3d973b98d2744cfced1f06167c83e2cc2d7b63d5  to linux-next branch,  I think we also need to pick it up to https://github.com/openbmc/linux/tree/dev-6.6, which will help pass the "onnn,adt7462" compatible warning log from the dt_binding_check tool.

On 14/10/2024 17:50, Chanh Nguyen wrote:
The Mt. Jefferson BMC is an ASPEED AST2600-based BMC for the Mt. Jefferson
hardware reference platform with AmpereOne(TM)M processor.

Signed-off-by: Chanh Nguyen <chanh@xxxxxxxxxxxxxxxxxxxxxx>
---
arch/arm/boot/dts/aspeed/Makefile | 1 +
.../aspeed/aspeed-bmc-ampere-mtjefferson.dts | 646 ++++++++++++++++++
2 files changed, 647 insertions(+)
create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjefferson.dts

diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index c4f064e4b073..b1fb0853a789 100644
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -6,6 +6,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
aspeed-bmc-amd-daytonax.dtb \
aspeed-bmc-amd-ethanolx.dtb \
aspeed-bmc-ampere-mtjade.dtb \
+ aspeed-bmc-ampere-mtjefferson.dtb \
aspeed-bmc-ampere-mtmitchell.dtb \
aspeed-bmc-arm-stardragon4800-rep2.dtb \
aspeed-bmc-asrock-e3c246d4i.dtb \
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjefferson.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjefferson.dts
new file mode 100644
index 000000000000..f24111ab9e65
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjefferson.dts
@@ -0,0 +1,646 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright 2024 Ampere Computing LLC.
+
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+#include <dt-bindings/i2c/i2c.h>
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+ model = "Ampere Mt. Jefferson BMC";
+ compatible = "ampere,mtjefferson-bmc", "aspeed,ast2600";
+
+ aliases {
+ i2c20 = &i2c4_bus70_chn0;
+ i2c22 = &i2c4_bus70_chn2;
+ i2c24 = &i2c2_bus70_chn0;
+
+ /*
+ * I2C OCP alias port
+ */
+ i2c30 = &ocpslot;
+
+ /*
+ * I2C NVMe alias port
+ */
+ i2c48 = &nvmeslot_0;
+ i2c49 = &nvmeslot_1;
+ i2c50 = &nvmeslot_2;
+ i2c51 = &nvmeslot_3;
+ i2c52 = &nvmeslot_4;
+ i2c53 = &nvmeslot_5;
+ i2c54 = &nvmeslot_6;
+ i2c55 = &nvmeslot_7;
+ i2c56 = &nvmeslot_8;
+ i2c57 = &nvmeslot_9;
+ i2c58 = &nvmeslot_10;
+ i2c59 = &nvmeslot_11;
+ };
+
+ chosen {
+ stdout-path = &uart5;
+ };
+
+ 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;
+ };
+
+ vga_memory: region@bf000000 {
+ no-map;
+ compatible = "shared-dma-pool";
+ reg = <0xbf000000 0x01000000>; /* 16M */
+ };
+ };
+
+ voltage_mon_reg: voltage-mon-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "ltc2497_reg";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ led-bmc-ready {
+ gpios = <&gpio0 ASPEED_GPIO(W, 5) (GPIO_ACTIVE_HIGH | GPIO_TRANSITORY)>;
+ };
+
+ led-sw-heartbeat {
+ gpios = <&gpio0 ASPEED_GPIO(N, 3) GPIO_ACTIVE_HIGH>;
+ };
+
+ led-identify {
+ gpios = <&gpio0 ASPEED_GPIO(S, 3) GPIO_ACTIVE_HIGH>;
+ };
+
+ led-fault {
+ gpios = <&gpio0 ASPEED_GPIO(P, 4) GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ iio-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&adc0 0>, <&adc0 1>, <&adc0 2>,
+ <&adc_i2c_2 0>, <&adc_i2c_2 1>,
+ <&adc_i2c_2 2>, <&adc_i2c_2 3>,
+ <&adc_i2c_2 4>, <&adc_i2c_2 5>,
+ <&adc_i2c_2 6>, <&adc_i2c_2 7>,
+ <&adc_i2c_2 8>, <&adc_i2c_2 9>,
+ <&adc_i2c_2 10>, <&adc_i2c_2 11>,
+ <&adc_i2c_2 12>, <&adc_i2c_2 13>,
+ <&adc_i2c_2 14>, <&adc_i2c_2 15>,
+ <&adc_i2c_0 0>, <&adc_i2c_0 1>,
+ <&adc_i2c_0 2>, <&adc_i2c_0 3>,
+ <&adc_i2c_0 4>, <&adc_i2c_0 5>,
+ <&adc_i2c_0 6>, <&adc_i2c_0 7>,
+ <&adc_i2c_0 8>, <&adc_i2c_0 9>,
+ <&adc_i2c_0 10>, <&adc_i2c_0 11>,
+ <&adc_i2c_0 12>;
+ };
+};
+
+&mdio0 {
+ status = "okay";
+
+ ethphy0: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ };
+};
+
+&mac0 {
+ status = "okay";
+
+ phy-mode = "rgmii";
+ phy-handle = <&ethphy0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_rgmii1_default>;
+};
+
+&mac3 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_rmii4_default>;
+ clock-names = "MACCLK", "RCLK";
+ use-ncsi;
+};
+
+&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";
+};
+
+&i2c0 {
+ status = "okay";
+};
+
+&i2c1 {
+ status = "okay";
+};
+
+&i2c2 {
+ status = "okay";
+ i2c-mux@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ i2c2_bus70_chn0: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+ psu@58 {
+ compatible = "pmbus";
+ reg = <0x58>;
+ };
+
+ psu@59 {
+ compatible = "pmbus";
+ reg = <0x59>;
+ };
+ };
+ };
+};
+
+&i2c3 {
+ status = "okay";
+ bus-frequency = <1000000>;
+ multi-master;
+ mctp-controller;
+
+ mctp@10 {
+ compatible = "mctp-i2c-controller";
+ reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+ };
+};
+
+&i2c4 {
+ 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>;
+
+ eeprom@52 {
+ compatible = "atmel,24c256";
+ reg = <0x52>;
+ pagesize = <32>;
+ };
+ temperature-sensor@48 {
+ compatible = "ti,tmp75";
+ reg = <0x48>;
+ };
+ temperature-sensor@49 {
+ compatible = "ti,tmp75";
+ reg = <0x49>;
+ };
+ temperature-sensor@4a{
+ compatible = "ti,tmp75";
+ reg = <0x4a>;
+ };
+ temperature-sensor@4b {
+ compatible = "ti,tmp464";
+ reg = <0x4b>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0x0>;
+ status = "disabled";
+ };
+ channel@1 {
+ reg = <0x1>;
+ status = "disabled";
+ };
+ channel@2 {
+ reg = <0x2>;
+ status = "disabled";
+ };
+ channel@3 {
+ reg = <0x3>;
+ status = "disabled";
+ };
+ channel@4 {
+ reg = <0x4>;
+ };
+ };
+ temperature-sensor@4d {
+ compatible = "ti,tmp75";
+ reg = <0x4d>;
+ };
+ temperature-sensor@4e {
+ compatible = "ti,tmp75";
+ reg = <0x4e>;
+ };
+ temperature-sensor@4f {
+ compatible = "ti,tmp75";
+ reg = <0x4f>;
+ };
+ temperature-sensor@28 {
+ compatible = "nuvoton,nct7802";
+ reg = <0x28>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ channel@1 { /* RTD1 */
+ reg = <1>;
+ sensor-type = "temperature";
+ temperature-mode = "thermistor";
+ };
+ };
+ adc_i2c_0: adc@14 {
+ compatible = "lltc,ltc2497";
+ reg = <0x14>;
+ vref-supply = <&voltage_mon_reg>;
+ #io-channel-cells = <1>;
+ };
+ };
+
+ i2c4_bus70_chn2: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2>;
+
+ adc_i2c_2: adc@14 {
+ compatible = "lltc,ltc2497";
+ reg = <0x14>;
+ vref-supply = <&voltage_mon_reg>;
+ #io-channel-cells = <1>;
+ };
+ };
+ };
+};
+
+&i2c5 {
+ status = "okay";
+ i2c-mux@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+ i2c-mux-idle-disconnect;
+
+ i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+
+ i2c-mux@71 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x71>;
+ i2c-mux-idle-disconnect;
+
+ nvmeslot_8: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+ };
+ nvmeslot_9: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1>;
+ };
+ nvmeslot_10: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2>;
+ };
+ nvmeslot_11: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x3>;
+ };
+ };
+
+ i2c-mux@72 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x72>;
+ i2c-mux-idle-disconnect;
+
+ nvmeslot_4: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x4>;
+ };
+ nvmeslot_5: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x5>;
+ };
+ nvmeslot_6: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x6>;
+ };
+ nvmeslot_7: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x7>;
+ };
+ };
+
+ i2c-mux@74 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x74>;
+ i2c-mux-idle-disconnect;
+
+ ocpslot: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x0>;
+
+ ocpslot_temp: temperature-sensor@1f {
+ compatible = "ti,tmp421";
+ reg = <0x1f>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0x0>;
+ status = "disabled";
+ };
+ channel@1 {
+ reg = <0x1>;
+ };
+ };
+ };
+
+ nvmeslot_0: i2c@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x4>;
+ };
+ nvmeslot_1: i2c@5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x5>;
+ };
+ nvmeslot_2: i2c@6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x6>;
+ };
+ nvmeslot_3: i2c@7 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x7>;
+ };
+ };
+ };
+ };
+};
+
+&i2c6 {
+ status = "okay";
+
+ rtc@51 {
+ compatible = "nxp,pcf8563";
+ reg = <0x51>;
+ };
+};
+
+&i2c7 {
+ status = "okay";
+
+ temperature-sensor@4f {
+ compatible = "ti,tmp75";
+ reg = <0x4f>;
+ };
+};
+
+&i2c8 {
+ status = "okay";
+
+ fan-controller@5c {
+ compatible = "onnn,adt7462";
+ reg = <0x5c>;
+ };
+};
+
+&i2c9 {
+ status = "okay";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@50 {
+ compatible = "atmel,24c02";
+ reg = <0x50>;
+ };
+
+ eeprom@52 {
+ compatible = "atmel,24c02";
+ reg = <0x52>;
+ };
+
+ temperature-sensor@18 {
+ compatible = "jedec,jc-42.4-temp";
+ reg = <0x18>;
+ };
+
+ temperature-sensor@1a {
+ compatible = "jedec,jc-42.4-temp";
+ reg = <0x1a>;
+ };
+};
+
+&i2c10 {
+ status = "okay";
+};
+
+&i2c11 {
+ status = "okay";
+ ssif-bmc@10 {
+ compatible = "ssif-bmc";
+ reg = <0x10>;
+ };
+};
+
+&i2c14 {
+ status = "okay";
+ eeprom@50 {
+ compatible = "atmel,24c64";
+ reg = <0x50>;
+ pagesize = <32>;
+ };
+
+ bmc_ast2600_cpu: temperature-sensor@48 {
+ compatible = "ti,tmp75";
+ reg = <0x48>;
+ };
+};
+
+&i2c15 {
+ status = "okay";
+ gpio_expander1: gpio-expander@22 {
+ compatible = "nxp,pca9535";
+ reg = <0x22>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names =
+ "presence-ocp1","presence-ocp2",
+ "","",
+ "","",
+ "","",
+ "","",
+ "","",
+ "","",
+ "","";
+ };
+};
+
+&adc0 {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adc0_default &pinctrl_adc1_default
+ &pinctrl_adc2_default>;
+};
+
+&vhub {
+ status = "okay";
+};
+
+&video {
+ status = "okay";
+ memory-region = <&video_engine_memory>;
+};
+
+&gpio0 {
+ gpio-line-names =
+ /*A0-A7*/ "","","","","cpu-type-detect","i2c2-reset-n","i2c6-reset-n","i2c5-reset-n",
+ /*B0-B7*/ "","","","","host0-sysreset-n","host0-pmin-n","fru-rd-complete",
+ "chassis-id-sel",
+ /*C0-C7*/ "s0-vrd-fault-n","","bmc-debug-mode","","cpld-3v3-irq-n","","vrd-sel",
+ "spd-sel",
+ /*D0-D7*/ "presence-ps0","presence-ps1","hsc-12vmain-alt2-n","ext-high-temp-n",
+ "","","","",
+ /*E0-E7*/ "eth-phy-rst-n","eth-phy-int-n","","","","","","",
+ /*F0-F7*/ "s0-pcp-oc-warn-n","","power-chassis-control",
+ "cpu-bios-recover","s0-heartbeat","hs-scout-proc-hot","s0-vr-hot-n","",
+ /*G0-G7*/ "","","hsc-12vmain-alt1-n","","","bp-cpld-program-en","led-fp-sta-gr",
+ "led-fp-sta-amb",
+ /*H0-H7*/ "jtag-program-sel","jtag-cmpl2","wd-disable-n","power-chassis-good","","",
+ "","",
+ /*I0-I7*/ "","","","","","","power-button","rtc-battery-voltage-read-enable",
+ /*J0-J7*/ "","","","","","","","",
+ /*K0-K7*/ "","","","","","","","",
+ /*L0-L7*/ "","","","","reset-button","","","",
+ /*M0-M7*/ "nmi-n","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","user-mode","jtag-srst-n",
+ "led-bmc-hb",
+ /*Q0-Q7*/ "","","","","","","","",
+ /*R0-R7*/ "","","","","","","","",
+ /*S0-S7*/ "","","identify-button","led-identify","","spi-nor-access","host0-ready","",
+ /*T0-T7*/ "","","","","","","","",
+ /*U0-U7*/ "","","","","","","","",
+ /*V0-V7*/ "s0-hightemp-n","s0-fault-alert","s0-sys-auth-failure-n",
+ "host0-reboot-ack-n","s0-fw-boot-ok","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*/ "","","","","","","","",
+ /*Y0-Y7*/ "","","","vrd-prg-en-n","","","","host0-special-boot",
+ /*Z0-Z7*/ "","ps0-pgood","ps1-pgood","","","","","";
+
+ ocp-aux-pwren-hog {
+ gpio-hog;
+ gpios = <ASPEED_GPIO(W, 0) GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "ocp-aux-pwren";
+ };
+
+};
+
+&gpio1 {
+ gpio-line-names =
+ /*18A0-18A7*/ "","","","","","","","",
+ /*18B0-18B7*/ "","","","","s0-soc-pgood","vga-ft-press-n","emmc-rst-n","s01-uart1-sel",
+ /*18C0-18C7*/ "uart1-mode0","uart1-mode1","uart2-mode0","uart2-mode1",
+ "","","","",
+ /*18D0-18D7*/ "","","","","","","","",
+ /*18E0-18E3*/ "","","","";
+};