ARM: dts: aspeed: Add Facebook Darwin (AST2600) BMC

Add initial device tree for the Meta (Facebook) Darwin AST2600 BMC.

Darwin is Meta's rack switch platform with an AST2600 BMC integrated for
health monitoring purpose.

Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Link: https://patch.msgid.link/20250728055618.61616-14-rentao.bupt@gmail.com
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>

diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index 5c447533f47484f35ab41312bf6924c29e977fd6..8062c685f7e8795b9b805499e7461013cee28c94 100644 (file)
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -20,6 +20,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
        aspeed-bmc-facebook-bletchley.dtb \
        aspeed-bmc-facebook-catalina.dtb \
        aspeed-bmc-facebook-cmm.dtb \
+       aspeed-bmc-facebook-darwin.dtb \
        aspeed-bmc-facebook-elbert.dtb \
        aspeed-bmc-facebook-fuji-data64.dtb \
        aspeed-bmc-facebook-fuji.dtb \

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-darwin.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-darwin.dts
new file mode 100644 (file)
index 0000000..58c107a
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-darwin.dts
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2021 Facebook Inc.
+
+/dts-v1/;
+
+#include "ast2600-facebook-netbmc-common.dtsi"
+
+/ {
+       model = "Facebook Darwin BMC";
+       compatible = "facebook,darwin-bmc", "aspeed,ast2600";
+
+       aliases {
+               serial0 = &uart5;
+               serial1 = &uart1;
+               serial2 = &uart2;
+               serial3 = &uart3;
+       };
+
+       chosen {
+               stdout-path = &uart5;
+       };
+
+       iio-hwmon {
+               compatible = "iio-hwmon";
+               io-channels = <&adc0 0>, <&adc0 1>, <&adc0 2>, <&adc0 3>,
+                             <&adc0 4>, <&adc0 5>, <&adc0 6>, <&adc0 7>,
+                             <&adc1 0>, <&adc1 1>, <&adc1 2>, <&adc1 3>,
+                             <&adc1 4>, <&adc1 5>, <&adc1 6>, <&adc1 7>;
+       };
+
+       spi_gpio: spi {
+               num-chipselects = <1>;
+               cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>;
+       };
+};
+
+&i2c0 {
+       eeprom@50 {
+               compatible = "atmel,24c512";
+               reg = <0x50>;
+       };
+};
+
+&adc0 {
+       status = "okay";
+
+       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 {
+       status = "okay";
+
+       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>;
+};
+
+&emmc_controller {
+       status = "okay";
+};
+
+&emmc {
+       status = "okay";
+
+       non-removable;
+       max-frequency = <25000000>;
+       bus-width = <4>;
+};