[PATCH v3] greatlakes: dts: Add Facebook greatlakes (AST2600) BMC

[Delphine CC Chiu]

Add linux device tree entry related to
greatlakes specific devices connected to BMC SoC.

---
--- v3 - Add documentation of board compatible (bindings)
---    - Add board compatible
---    - Remove the bootargs
---    - Revise the DTS node name
---
--- v2 - Add binding document
---
--- v1 - Initial draft
---

Signed-off-by: Bonnie Lo <Bonnie_Lo at Wiwynn.com>
---
 arch/arm/boot/dts/Makefile                    |   1 +
 .../dts/aspeed-bmc-facebook-greatlakes.dts    | 241 ++++++++++++++++++
 2 files changed, 242 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed-bmc-facebook-greatlakes.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 05d8aef6e5d2..d9f417f2d7df 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1586,6 +1586,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-facebook-elbert.dtb \
 	aspeed-bmc-facebook-fuji.dtb \
 	aspeed-bmc-facebook-galaxy100.dtb \
+	aspeed-bmc-facebook-greatlakes.dtb \
 	aspeed-bmc-facebook-minipack.dtb \
 	aspeed-bmc-facebook-tiogapass.dtb \
 	aspeed-bmc-facebook-wedge40.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-greatlakes.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-greatlakes.dts
new file mode 100644
index 000000000000..8c05bd56ce1e
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-greatlakes.dts
@@ -0,0 +1,241 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright 2022 Facebook Inc.
+
+/dts-v1/;
+#include "aspeed-g6.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/leds/leds-pca955x.h>
+#include <dt-bindings/i2c/i2c.h>
+
+/ {
+	model = "Facebook Greatlakes BMC";
+	compatible = "facebook,greatlakes-bmc", "aspeed,ast2600";
+
+	aliases {
+		serial4 = &uart5;
+	};
+
+	memory at 80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x80000000>;
+	};
+
+	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 2>, <&adc1 3>, <&adc1 4>,
+				<&adc1 5>, <&adc1 6>;
+	};
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&uart3 {
+	status = "okay";
+};
+
+&uart4 {
+	status = "okay";
+};
+
+&uart5 {
+	status = "okay";
+};
+
+&wdt1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdtrst1_default>;
+	aspeed,reset-type = "soc";
+	aspeed,external-signal;
+	aspeed,ext-push-pull;
+	aspeed,ext-active-high;
+	aspeed,ext-pulse-duration = <256>;
+};
+
+&mac3 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii4_default>;
+	no-hw-checksum;
+	use-ncsi;
+	mlx,multi-host;
+	ncsi-ctrl,start-redo-probe;
+	ncsi-ctrl,no-channel-monitor;
+	ncsi-package = <1>;
+	ncsi-channel = <1>;
+	ncsi-rexmit = <1>;
+	ncsi-timeout = <2>;
+};
+
+&rtc {
+	status = "okay";
+};
+
+&fmc {
+	status = "okay";
+	flash at 0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc";
+		spi-rx-bus-width = <4>;
+		spi-max-frequency = <50000000>;
+#include "openbmc-flash-layout-64.dtsi"
+	};
+	flash at 1 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc2";
+		spi-rx-bus-width = <4>;
+		spi-max-frequency = <50000000>;
+	};
+};
+
+&i2c0 {
+	status = "okay";
+	multi-master;
+	ipmb at 10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c1 {
+	status = "okay";
+	multi-master;
+	ipmb at 10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c2 {
+	status = "okay";
+	multi-master;
+	ipmb at 10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c3 {
+	status = "okay";
+	multi-master;
+	ipmb at 10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c4 {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+};
+
+&i2c6 {
+	status = "okay";
+};
+
+&i2c7 {
+	status = "okay";
+};
+
+&i2c8 {
+	status = "okay";
+	temperature-sensor at 1f {
+		compatible = "ti,tmp421";
+		reg = <0x1f>;
+	};
+	// NIC EEPROM
+	eeprom at 50 {
+		compatible = "st,24c32";
+		reg = <0x50>;
+	};
+};
+
+&i2c9 {
+	status = "okay";
+	multi-master;
+	ipmb at 10 {
+		compatible = "ipmb-dev";
+		reg = <(0x10 | I2C_OWN_SLAVE_ADDRESS)>;
+		i2c-protocol;
+	};
+};
+
+&i2c10 {
+	status = "okay";
+};
+
+&i2c11 {
+	status = "okay";
+	eeprom at 51 {
+		compatible = "atmel,24c128";
+		reg = <0x51>;
+	};
+	eeprom at 54 {
+		compatible = "atmel,24c128";
+		reg = <0x54>;
+	};
+};
+
+&i2c12 {
+	status = "okay";
+	temperature-sensor at 4f {
+		compatible = "lm75";
+		reg = <0x4f>;
+	};
+};
+
+&i2c13 {
+	status = "okay";
+};
+
+&adc0 {
+	ref_voltage = <2500>;
+	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 {
+	ref_voltage = <2500>;
+	status = "okay";
+	pinctrl-0 = <&pinctrl_adc8_default &pinctrl_adc10_default
+			&pinctrl_adc11_default &pinctrl_adc12_default
+			&pinctrl_adc13_default &pinctrl_adc14_default>;
+};
+
+
+&ehci0 {
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&uhci {
+	status = "okay";
+};
+
+&gpio0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpiu1_default &pinctrl_gpiu7_default>;
+};
-- 
2.25.1