[PATCHv2] ARM: mvebu: Add Netgear ReadyNAS 2120 board

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All hardware parts of the (mv78230 Armada XP based) NETGEAR ReadyNAS
2120 are supported by mainline kernel (USB 3.0 and eSATA rear ports,
USB 2.0 front port, Gigabit controller and PHYs for the two rear ports,
serial port, LEDs, Buttons, 88SE9170 SATA controllers, three G762 fan
controllers, G751 temperature sensor) except for:

 - the Intersil ISL12057 I2C RTC Chip,
 - the Armada NAND controller.

Support for both of those is currently work in progress and does not
prevent boot.

Signed-off-by: Arnaud Ebalard <arno@xxxxxxxxxxxx>
---
Hi,

Initial message:

 This one is intended for v3.14. This depends on the recent fix I pushed
 for mv78230 PCIe and also on a small patch Guenter Roeck just accepted
 to have lm75 driver support GMT G751 Temperature sensor (see 
 https://lkml.org/lkml/2013/11/9/273).
 
 Regarding the SATA presence and power pin definitions under pinctrl
 node if you wonder, I thought it would not harm to have them for
 reference even though they are currently not used. FWIW, I am currently
 looking if a GPIO regulator can make any use of those.

Changes since v1:

 After Andrew's comment:
  - Added comment about G751 function

 After Sebastian's comments:
  - Changed clock frequency for a clock provider for serial line
  - Added compatible string for PHY (marvell,mv88e1318s)
  - Removed useless properties in clocks and gpio_keys nodes
  - Made G762 clock node name unique by including g762 in it
  - Changed values for macros for GPIO voltage level
  - Removed comments after GPIOs
  - Changed buttons and button pins names

 After Jason's comment:
  - Changed values for macros for input keys, removed comments

 After more documenation reading:
  - changed i2c compatible string to marvell,mv78230-i2c

Comments welcome,

Cheers,

a+

 arch/arm/boot/dts/Makefile                     |   1 +
 arch/arm/boot/dts/armada-xp-netgear-rn2120.dts | 288 +++++++++++++++++++++++++
 2 files changed, 289 insertions(+)
 create mode 100644 arch/arm/boot/dts/armada-xp-netgear-rn2120.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 802720e..c6dd4de 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -112,6 +112,7 @@ dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
 	armada-xp-axpwifiap.dtb \
 	armada-xp-db.dtb \
 	armada-xp-gp.dtb \
+	armada-xp-netgear-rn2120.dtb \
 	armada-xp-openblocks-ax3-4.dtb
 dtb-$(CONFIG_ARCH_MXC) += \
 	imx25-karo-tx25.dtb \
diff --git a/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts b/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts
new file mode 100644
index 0000000..ba1e0de
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts
@@ -0,0 +1,288 @@
+/*
+ * Device Tree file for NETGEAR ReadyNAS 2120
+ *
+ * Copyright (C) 2013, Arnaud EBALARD <arno@xxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+/dts-v1/;
+
+#include "armada-xp-mv78230.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "NETGEAR ReadyNAS 2120";
+	compatible = "netgear,readynas-2120", "marvell,armadaxp-mv78230", "marvell,armadaxp", "marvell,armada-370-xp";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0 0x00000000 0 0x80000000>; /* 2GB */
+	};
+
+	soc {
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000
+			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000>;
+
+		pcie-controller {
+			status = "okay";
+
+			/* Connected to first Marvell 88SE9170 SATA controller */
+			pcie@1,0 {
+				/* Port 0, Lane 0 */
+				status = "okay";
+			};
+
+			/* Connected to second Marvell 88SE9170 SATA controller */
+			pcie@2,0 {
+				/* Port 0, Lane 1 */
+				status = "okay";
+			};
+
+			/* Connected to Fresco Logic FL1009 USB 3.0 controller */
+			pcie@5,0 {
+				/* Port 1, Lane 0 */
+				status = "okay";
+			};
+		};
+
+		internal-regs {
+			pinctrl {
+				poweroff: poweroff {
+					marvell,pins = "mpp42";
+					marvell,function = "gpio";
+				};
+
+				power_button_pin: power-button-pin {
+					marvell,pins = "mpp27";
+					marvell,function = "gpio";
+				};
+
+				reset_button_pin: reset-button-pin {
+					marvell,pins = "mpp41";
+					marvell,function = "gpio";
+				};
+
+				sata1_led_pin: sata1-led-pin {
+					marvell,pins = "mpp31";
+					marvell,function = "gpio";
+				};
+
+				sata2_led_pin: sata2-led-pin {
+					marvell,pins = "mpp40";
+					marvell,function = "gpio";
+				};
+
+				sata3_led_pin: sata3-led-pin {
+					marvell,pins = "mpp44";
+					marvell,function = "gpio";
+				};
+
+				sata4_led_pin: sata4-led-pin {
+					marvell,pins = "mpp47";
+					marvell,function = "gpio";
+				};
+
+				sata1_power_pin: sata1-power-pin {
+					marvell,pins = "mpp24";
+					marvell,function = "gpio";
+				};
+
+				sata2_power_pin: sata2-power-pin {
+					marvell,pins = "mpp25";
+					marvell,function = "gpio";
+				};
+
+				sata3_power_pin: sata3-power-pin {
+					marvell,pins = "mpp26";
+					marvell,function = "gpio";
+				};
+
+				sata4_power_pin: sata4-power-pin {
+					marvell,pins = "mpp28";
+					marvell,function = "gpio";
+				};
+
+				sata1_pres_pin: sata1-pres-pin {
+					marvell,pins = "mpp32";
+					marvell,function = "gpio";
+				};
+
+				sata2_pres_pin: sata2-pres-pin {
+					marvell,pins = "mpp33";
+					marvell,function = "gpio";
+				};
+
+				sata3_pres_pin: sata3-pres-pin {
+					marvell,pins = "mpp34";
+					marvell,function = "gpio";
+				};
+
+				sata4_pres_pin: sata4-pres-pin {
+					marvell,pins = "mpp35";
+					marvell,function = "gpio";
+				};
+
+				err_led_pin: err-led-pin {
+					marvell,pins = "mpp45";
+					marvell,function = "gpio";
+				};
+			};
+
+			serial@12000 {
+				clocks = <&coreclk 0>;
+				status = "okay";
+			};
+
+			mdio {
+				phy0: ethernet-phy@0 {
+					compatible = "marvell,88e1318s";
+					reg = <0>;
+				};
+
+				phy1: ethernet-phy@1 {
+					compatible = "marvell,88e1318s";
+					reg = <1>;
+				};
+			};
+
+			ethernet@70000 {
+				status = "okay";
+				phy = <&phy0>;
+				phy-mode = "rgmii-id";
+			};
+
+			ethernet@74000 {
+				status = "okay";
+				phy = <&phy1>;
+				phy-mode = "rgmii-id";
+			};
+
+			/* Front USB 2.0 port */
+			usb@50000 {
+				status = "okay";
+			};
+
+			i2c@11000 {
+				compatible = "marvell,mv78230-i2c";
+				clock-frequency = <400000>;
+				status = "okay";
+
+				/* Controller for rear fan #1 of 3 (Protechnic
+				 * MGT4012XB-O20, 8000RPM) near eSATA port */
+				g762_fan1: g762@3e {
+					compatible = "gmt,g762";
+					reg = <0x3e>;
+					clocks = <&g762_clk>; /* input clock */
+					fan_gear_mode = <0>;
+					fan_startv = <1>;
+					pwm_polarity = <0>;
+				};
+
+				/*  Controller for rear (center) fan #2 of 3 */
+				g762_fan2: g762@48 {
+					compatible = "gmt,g762";
+					reg = <0x48>;
+					clocks = <&g762_clk>; /* input clock */
+					fan_gear_mode = <0>;
+					fan_startv = <1>;
+					pwm_polarity = <0>;
+				};
+
+				/*  Controller for rear fan #3 of 3 */
+				g762_fan3: g762@49 {
+					compatible = "gmt,g762";
+					reg = <0x49>;
+					clocks = <&g762_clk>; /* input clock */
+					fan_gear_mode = <0>;
+					fan_startv = <1>;
+					pwm_polarity = <0>;
+				};
+
+				/* Temperature sensor */
+				g751: g751@4c {
+					compatible = "gmt,g751";
+					reg = <0x4c>;
+				};
+			};
+		};
+	};
+
+	clocks {
+	       g762_clk: g762_oscillator {
+			 compatible = "fixed-clock";
+			 #clock-cells = <0>;
+			 clock-frequency = <32768>;
+	       };
+	};
+
+	gpio_leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&sata1_led_pin &sata2_led_pin &err_led_pin
+			     &sata3_led_pin &sata4_led_pin>;
+		pinctrl-names = "default";
+
+		red_sata1_led {
+			label = "rn2120:red:sata1";
+			gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		red_sata2_led {
+			label = "rn2120:red:sata2";
+			gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		red_sata3_led {
+			label = "rn2120:red:sata3";
+			gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		red_sata4_led {
+			label = "rn2120:red:sata4";
+			gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		red_err_led {
+			label = "rn2120:red:err";
+			gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&power_button_pin &reset_button_pin>;
+		pinctrl-names = "default";
+
+		power_button {
+			label = "Power Button";
+			linux,code = <KEY_POWER>;
+			gpios = <&gpio0 27 GPIO_ACTIVE_HIGH>;
+		};
+
+		reset_button {
+			label = "Reset Button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio_poweroff {
+		compatible = "gpio-poweroff";
+		pinctrl-0 = <&poweroff>;
+		pinctrl-names = "default";
+		gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+	};
+};
-- 
1.8.4.rc3

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