[PATCH v2] ARM: dts: aspeed: Adding Facebook TioagaPass BMC

[Vijay Khemka]

Initial introduction of Facebook TioagaPass family equipped with
Aspeed 2500 BMC SoC. Neptune is a x86 server development kit
with a ASPEED ast2500 BMC manufactured by Facebook.
Specifically, This adds the tiogapass platform device tree file
including the flash layout used by the tiogapass BMC machines.

This also adds an entry of tiogapass device tree file in Makefile
as well an entry of Facebook in Documentation for vendor prefix

Signed-off-by: Vijay Khemka <vijaykhemka at fb.com>
---
 .../devicetree/bindings/vendor-prefixes.txt   |   1 +
 arch/arm/boot/dts/Makefile                    |   1 +
 .../dts/aspeed-bmc-facebook-tiogapass.dts     | 146 ++++++++++++++++++
 3 files changed, 148 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 2c3fc512e746..733b2d523642 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -127,6 +127,7 @@ everspin	Everspin Technologies, Inc.
 exar	Exar Corporation
 excito	Excito
 ezchip	EZchip Semiconductor
+facebook  Facebook
 fairphone	Fairphone B.V.
 faraday	Faraday Technology Corporation
 fastrax	Fastrax Oy
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index b5bd3de87c33..1a2db605185a 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1199,6 +1199,7 @@ dtb-$(CONFIG_ARCH_ZX) += zx296702-ad1.dtb
 dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-ast2500-evb.dtb \
 	aspeed-bmc-arm-centriq2400-rep.dtb \
+	aspeed-bmc-facebook-tiogapass.dtb \
 	aspeed-bmc-intel-s2600wf.dtb \
 	aspeed-bmc-opp-lanyang.dtb \
 	aspeed-bmc-opp-palmetto.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts
new file mode 100644
index 000000000000..90f5f958bc3a
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017 Facebook Inc.
+// Author: Vijay Khemka <vijaykhemka at fb.com>
+/dts-v1/;
+
+#include "aspeed-g5.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+	model = "Facebook TiogaPass BMC";
+	compatible = "facebook,tiogapass-bmc", "aspeed,ast2500";
+	aliases {
+		serial0 = &uart1;
+		serial4 = &uart5;
+	};
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,115200 earlyprintk";
+	};
+
+	memory {
+		reg = <0x80000000 0x20000000>;
+	};
+};
+
+&fmc {
+	status = "okay";
+	flash at 0 {
+		status = "okay";
+		m25p,fast-read;
+#include "openbmc-flash-layout.dtsi"
+	};
+};
+
+&spi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1_default>;
+	flash at 0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "pnor";
+	};
+};
+
+&uart1 {
+	// Host Console
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd1_default
+		     &pinctrl_rxd1_default>;
+};
+
+&uart5 {
+	// BMC Console
+	status = "okay";
+};
+
+&mac0 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii1_default>;
+	use-ncsi;
+};
+
+&i2c0 {
+	status = "okay";
+	//Airmax Conn B, CPU0 PIROM, CPU1 PIROM
+};
+
+&i2c1 {
+	status = "okay";
+	//X24 Riser
+};
+
+&i2c2 {
+	status = "okay";
+	// Mezz Management SMBus
+};
+
+&i2c3 {
+	status = "okay";
+	// SMBus to Board ID EEPROM
+};
+
+&i2c4 {
+	status = "okay";
+	// BMC Debug Header
+};
+
+&i2c5 {
+	status = "okay";
+  //CPU Voltage regulators
+};
+
+&i2c6 {
+	status = "okay";
+	tpm at 20 {
+		compatible = "infineon,slb9645tt";
+		reg = <0x20>;
+	};
+	tmp421 at 4e {
+		compatible = "ti,tmp421";
+		reg = <0x4e>;
+	};
+	tmp421 at 4f {
+		compatible = "ti,tmp421";
+		reg = <0x4f>;
+	};
+	eeprom at 54 {
+		compatible = "atmel,24c64";
+		reg = <0x54>;
+		pagesize = <32>;
+	};
+};
+
+&i2c7 {
+	status = "okay";
+  //HSC, AirMax Conn A
+};
+
+&i2c8 {
+	status = "okay";
+  //Mezz Sensor SMBus
+};
+
+&i2c9 {
+	status = "okay";
+  //USB Debug Connector
+};
+
+&pwm_tacho {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default>;
+	fan at 0 {
+		reg = <0x00>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x00>;
+	};
+
+	fan at 1 {
+		reg = <0x00>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x01>;
+	};
+};
-- 
2.17.1