[PATCHv1] ARM: mvebu: Add Netgear ReadyNAS 104 board

[arno@natisbad.org (Arnaud Ebalard)]

Main hardware parts of the (Armada 370 based) NETGEAR ReadyNAS 104 are
supported by mainline kernel (USB 3.0 rear ports, USB 2.0 front port,
Gigabit controller and PHYs, serial port, LEDs, buttons, SATA ports,
G762 fan controller) and referenced in provided .dts file. Some additonal
work remains for:

 - Intersil ISL12057 I2C RTC and Alarm chip: working driver but needs
   to be splitted for submission of RTC part first;
 - Front LCD (Winstar 1602G): driver needs to be written
 - Armada NAND controller (to access onboard 128MB of NAND): support
   being pushed by @free-electrons people
 - 4 front SATA LEDs controlled via GPIO brought by NXP PCA9554:
   driver is available upstream. Not referenced/tested yet.

but the device is usable w/o those.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
---

Changes since v0, based on comments from Andrew:

 - removed useless sata nodes w/ disabled status
 - changed power LED to default-state="keep" and backup LED to "off"

 arch/arm/boot/dts/Makefile                     |   1 +
 arch/arm/boot/dts/armada-370-netgear-rn104.dts | 193 +++++++++++++++++++++++++
 2 files changed, 194 insertions(+)
 create mode 100644 arch/arm/boot/dts/armada-370-netgear-rn104.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 802720e..be682cb 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -108,6 +108,7 @@ dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
 dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
 	armada-370-mirabox.dtb \
 	armada-370-netgear-rn102.dtb \
+	armada-370-netgear-rn104.dtb \
 	armada-370-rd.dtb \
 	armada-xp-axpwifiap.dtb \
 	armada-xp-db.dtb \
diff --git a/arch/arm/boot/dts/armada-370-netgear-rn104.dts b/arch/arm/boot/dts/armada-370-netgear-rn104.dts
new file mode 100644
index 0000000..2eb855f
--- /dev/null
+++ b/arch/arm/boot/dts/armada-370-netgear-rn104.dts
@@ -0,0 +1,193 @@
+/*
+ * Device Tree file for NETGEAR ReadyNAS 104
+ *
+ * Copyright (C) 2013, Arnaud EBALARD <arno@natisbad.org>
+ *
+ * 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-370.dtsi"
+
+/ {
+	model = "NETGEAR ReadyNAS 104";
+	compatible = "netgear,readynas-104", "marvell,armada370", "marvell,armada-370-xp";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x20000000>; /* 512 MB */
+	};
+
+	soc {
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
+			  MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000>;
+
+		pcie-controller {
+			status = "okay";
+
+			/* Connected to FL1009 USB 3.0 controller */
+			pcie at 1,0 {
+				/* Port 0, Lane 0 */
+				status = "okay";
+			};
+
+			/* Connected to Marvell 88SE9215 SATA controller */
+			pcie at 2,0 {
+				/* Port 1, Lane 0 */
+				status = "okay";
+			};
+		};
+
+		internal-regs {
+			serial at 12000 {
+				clock-frequency = <200000000>;
+				status = "okay";
+			};
+
+			pinctrl {
+				poweroff: poweroff {
+					marvell,pins = "mpp60";
+					marvell,function = "gpio";
+				};
+
+				backup_key_pin: backup-key-pin {
+					marvell,pins = "mpp52";
+					marvell,function = "gpio";
+				};
+
+				power_key_pin: power-key-pin {
+					marvell,pins = "mpp62";
+					marvell,function = "gpio";
+				};
+
+				backup_led_pin: backup-led-pin {
+					marvell,pins = "mpp63";
+					marvell,function = "gpo";
+				};
+
+				power_led_pin: power-led-pin {
+					marvell,pins = "mpp64";
+					marvell,function = "gpio";
+				};
+
+				reset_key_pin: reset-key-pin {
+					marvell,pins = "mpp65";
+					marvell,function = "gpio";
+				};
+			};
+
+			mdio {
+				phy0: ethernet-phy at 0 {
+					reg = <0>;
+				};
+
+				phy1: ethernet-phy at 1 {
+					reg = <1>;
+				};
+			};
+
+			ethernet at 70000 {
+				status = "okay";
+				phy = <&phy0>;
+				phy-mode = "rgmii-id";
+			};
+
+			ethernet at 74000 {
+				status = "okay";
+				phy = <&phy1>;
+				phy-mode = "rgmii-id";
+			};
+
+			usb at 50000 {
+				status = "okay";
+			};
+
+			i2c at 11000 {
+				compatible = "marvell,mv64xxx-i2c";
+				clock-frequency = <100000>;
+				status = "okay";
+
+				g762: g762 at 3e {
+					compatible = "gmt,g762";
+					reg = <0x3e>;
+					clocks = <&g762_clk>; /* input clock */
+					fan_gear_mode = <0>;
+					fan_startv = <1>;
+					pwm_polarity = <0>;
+				};
+			};
+		};
+	};
+
+	clocks {
+	       #address-cells = <1>;
+	       #size-cells = <0>;
+
+	       g762_clk: fixedclk {
+			 compatible = "fixed-clock";
+			 #clock-cells = <0>;
+			 clock-frequency = <8192>;
+	       };
+	};
+
+	gpio_leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&backup_led_pin &power_led_pin>;
+		pinctrl-names = "default";
+
+		blue_backup_led {
+			label = "rn104:blue:backup";
+			gpios = <&gpio1 31 0>;   /* GPIO 63 Active High */
+			default-state = "off";
+		};
+
+		blue_power_led {
+			label = "rn104:blue:pwr";
+			gpios = <&gpio2 0 1>;    /* GPIO 64 Active Low */
+			linux,default-trigger = "keep";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&backup_key_pin
+			     &power_key_pin
+			     &reset_key_pin>;
+		pinctrl-names = "default";
+
+		button at 1 {
+			label = "Backup Button";
+			linux,code = <133>;     /* KEY_COPY */
+			gpios = <&gpio1 20 1>;
+		};
+
+		button at 2 {
+			label = "Power Button";
+			linux,code = <116>;     /* KEY_POWER */
+			gpios = <&gpio1 30 0>;
+		};
+
+		button at 3 {
+			label = "Reset Button";
+			linux,code = <0x198>;   /* KEY_RESTART */
+			gpios = <&gpio2 1 1>;
+		};
+	};
+
+	gpio_poweroff {
+		compatible = "gpio-poweroff";
+		pinctrl-0 = <&poweroff>;
+		pinctrl-names = "default";
+		gpios = <&gpio1 28 1>;
+	};
+};
-- 
1.8.4.rc3