[PATCH linux dev-4.13 v6] Add ARM system BMC device tree

[Ken Chen]

The Qualcomm Centriq 2400 REP (Reference Evaluation Platorm) is
aarch64 Armv8 server platform with an ast2520 BMC.

Signed-off-by: Ken Chen <chen.kenyy at inventec.com>
Acked-by: Andrew Jeffery <andrew at aj.id.au>

---
v5->v6
- Modify commit text
- Fix Build fatel error
- Remove PCA9542 and and PAC9641 device
- Rebase to dev-4.13

v4->v5
- Removed strange whitespace
- Removed aspeed.c commit
- Modify commit content

v3->v4
- Modify Makefile for centriq2400-rep dts
- Fix typo label
- Removed unnecessary define of spi2 and centriq2400-spi-hwmon device
- Removed lpc device
- Fix coding style
- Removed ssif device
- Removed max31790 device
- Removed register control of GPIO and Watchdog
---
 arch/arm/boot/dts/Makefile                         |   1 +
 .../boot/dts/aspeed-bmc-arm-centriq2400-rep.dts    | 226 +++++++++++++++++++++
 2 files changed, 227 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed-bmc-arm-centriq2400-rep.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 79b0218..5cfee25 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1055,6 +1055,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
 dtb-$(CONFIG_ARCH_ZX) += zx296702-ad1.dtb
 dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-ast2500-evb.dtb \
+	aspeed-bmc-arm-centriq2400-rep.dtb \
 	aspeed-bmc-intel-s2600wf.dtb \
 	aspeed-bmc-opp-palmetto.dtb \
 	aspeed-bmc-opp-romulus.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-arm-centriq2400-rep.dts b/arch/arm/boot/dts/aspeed-bmc-arm-centriq2400-rep.dts
new file mode 100644
index 0000000..b857589
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-arm-centriq2400-rep.dts
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+#include "aspeed-g5.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+	model = "Qualcomm Centriq 2400  REP AST2520";
+	compatible = "qualcomm,centriq2400-rep-bmc", "aspeed,ast2500";
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,115200 earlyprintk";
+	};
+
+	memory {
+		reg = <0x80000000 0x40000000>;
+	};
+
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
+                        <&adc 4>, <&adc 5>, <&adc 6>, <&adc 8>;
+	};
+
+	iio-hwmon-battery {
+		compatible = "iio-hwmon";
+		io-channels = <&adc 7>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		uid_led {
+			label = "UID_LED";
+			gpios = <&gpio ASPEED_GPIO(Q, 5) GPIO_ACTIVE_LOW>;
+		};
+
+		ras_error_led {
+			label = "RAS_ERROR_LED";
+			gpios = <&gpio ASPEED_GPIO(F, 6) GPIO_ACTIVE_LOW>;
+		};
+
+		system_fault {
+			label = "System_fault";
+			gpios = <&gpio ASPEED_GPIO(A, 1) GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&fmc {
+	status = "okay";
+	flash at 0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc";
+#include "openbmc-flash-layout.dtsi"
+	};
+};
+
+&spi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1_default>;
+	flash at 0 {
+		status = "okay";
+	};
+};
+
+&spi2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi2ck_default &pinctrl_spi2miso_default &pinctrl_spi2mosi_default &pinctrl_spi2cs0_default>;
+};
+
+&uart3 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd3_default &pinctrl_rxd3_default>;
+	current-speed = <115200>;
+};
+
+&uart5 {
+	status = "okay";
+};
+
+&mac0 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii1_default &pinctrl_mdio1_default>;
+};
+
+&i2c0 {
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+
+	tmp421 at 1e {
+		compatible = "ti,tmp421";
+		reg = <0x1e>;
+	};
+	tmp421 at 2a {
+		compatible = "ti,tmp421";
+		reg = <0x2a>;
+	};
+	tmp421 at 4e {
+		compatible = "ti,tmp421";
+		reg = <0x4e>;
+	};
+	tmp421 at 1c {
+		compatible = "ti,tmp421";
+		reg = <0x1c>;
+	};
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&i2c3 {
+	status = "okay";
+};
+
+&i2c4 {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+};
+
+&i2c6 {
+	status = "okay";
+
+	tmp421 at 1d {
+		compatible = "ti,tmp421";
+		reg = <0x1d>;
+	};
+	tmp421 at 1f {
+		compatible = "ti,tmp421";
+		reg = <0x1f>;
+	};
+	tmp421 at 4d {
+		compatible = "ti,tmp421";
+		reg = <0x4d>;
+	};
+	tmp421 at 4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+	nvt210 at 4c {
+		compatible = "nvt210";
+		reg = <0x4c>;
+	};
+	eeprom at 50 {
+		compatible = "atmel,24c128";
+		reg = <0x50>;
+		pagesize = <128>;
+	};
+};
+
+&i2c7 {
+	status = "okay";
+};
+
+&i2c8 {
+	status = "okay";
+
+	pca9641 at 70 {
+		compatible = "nxp,pca9641";
+		reg = <0x70>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-arb {
+			tmp421 at 1d {
+				compatible = "tmp421";
+				reg = <0x1d>;
+			};
+			adm1278 at 12 {
+				compatible = "adi,adm1278";
+				reg = <0x12>;
+				Rsense = <500>;
+			};
+			eeprom at 50 {
+				compatible = "atmel,24c02";
+				reg = <0x50>;
+			};
+			ds1100 at 58 {
+				compatible = "ds1100";
+				reg = <0x58>;
+			};
+		};
+	};
+};
+
+&i2c9 {
+	status = "okay";
+};
+
+&vuart {
+	status = "okay";
+};
+
+&gfx {
+	status = "okay";
+};
+
+&pinctrl {
+	aspeed,external-nodes = <&gfx &lhc>;
+};
+
+&wdt2 {
+	status = "okay";
+};
+
+&gpio {
+	pin_gpio_c7 {
+		gpio-hog;
+		gpios = <ASPEED_GPIO(C, 7) GPIO_ACTIVE_HIGH>;
+		output;
+		line-name = "BIOS_SPI_MUX_S";
+	};
+};
-- 
2.9.3