ARM: kirkwood: add support for OpenBlocks A7 platform

The OpenBlocks A7 board is designed and sold by PlatHome, and based on
a Kirkwood 6283 Marvell SoC. It is quite similar to the OpenBlocks A6
already supported in the kernel, with the following main differences:

 - The A6 uses a RTC on I2C, while the A7 uses the internal SoC RTC.

 - The A6 has one Ethernet port, while the A7 has two Ethernet ports

 - The A6 has only one USB port, while the A7 integrates a USB hub,
   which provides two front-side USB port, and an internal USB port as
   well.

 - The A6 has 512 MB of RAM, while the A7 has 1 GB of RAM.

 - Slightly different GPIOs for some functions.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/Makefile

@@ -95,12 +95,13 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-cloudbox.dtb \
 	kirkwood-ns2mini.dtb \
 	kirkwood-nsa310.dtb \
 	kirkwood-nsa310a.dtb \
+	kirkwood-openblocks_a6.dtb \
+	kirkwood-openblocks_a7.dtb \
 	kirkwood-sheevaplug.dtb \
 	kirkwood-sheevaplug-esata.dtb \
 	kirkwood-topkick.dtb \
 	kirkwood-ts219-6281.dtb \
-	kirkwood-ts219-6282.dtb \
-	kirkwood-openblocks_a6.dtb
+	kirkwood-ts219-6282.dtb
 dtb-$(CONFIG_ARCH_MARCO) += marco-evb.dtb
 dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
 	msm8960-cdp.dtb

arch/arm/boot/dts/kirkwood-openblocks_a7.dts

@@ -0,0 +1,223 @@
+/*
+ * Device Tree file for OpenBlocks A7 board
+ *
+ * Copyright (C) 2013 Free Electrons
+ *
+ * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+/dts-v1/;
+
+#include "kirkwood.dtsi"
+#include "kirkwood-6282.dtsi"
+
+/ {
+	model = "Plat'Home OpenBlocksA7";
+	compatible = "plathome,openblocks-a7", "marvell,kirkwood-88f6283", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x40000000>; /* 1 GB */
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 earlyprintk";
+	};
+
+	ocp@f1000000 {
+		serial@12000 {
+			status = "ok";
+			pinctrl-0 = <&pmx_uart0>;
+			pinctrl-names = "default";
+		};
+
+		serial@12100 {
+			status = "ok";
+			pinctrl-0 = <&pmx_uart1>;
+			pinctrl-names = "default";
+		};
+
+		sata@80000 {
+			nr-ports = <1>;
+			status = "okay";
+		};
+
+		i2c@11100 {
+			status = "okay";
+			pinctrl-0 = <&pmx_twsi1>;
+			pinctrl-names = "default";
+
+			s24c02: s24c02@50 {
+				compatible = "24c02";
+				reg = <0x50>;
+			};
+		};
+
+		pinctrl: pinctrl@10000 {
+			pinctrl-0 = <&pmx_dip_switches &pmx_gpio_header>;
+			pinctrl-names = "default";
+
+			pmx_uart0: pmx-uart0 {
+				marvell,pins = "mpp10", "mpp11", "mpp15",
+					"mpp16";
+				marvell,function = "uart0";
+			};
+
+			pmx_uart1: pmx-uart1 {
+				marvell,pins = "mpp13", "mpp14", "mpp8",
+					"mpp9";
+				marvell,function = "uart1";
+			};
+
+			pmx_sysrst: pmx-sysrst {
+				marvell,pins = "mpp6";
+				marvell,function = "sysrst";
+			};
+
+			pmx_dip_switches: pmx-dip-switches {
+				marvell,pins = "mpp44", "mpp45", "mpp46", "mpp47";
+				marvell,function = "gpio";
+			};
+
+			/*
+			 * Accessible on connector J202. The MPP
+			 * listed below are pin 1-7, pin 8 is unused,
+			 * pin 9 is external reset input and pin 10 is
+			 * ground.
+			 */
+			pmx_gpio_header: pmx-gpio-header {
+				marvell,pins = "mpp17", "mpp7", "mpp29", "mpp28",
+					       "mpp35", "mpp34", "mpp40";
+				marvell,function = "gpio";
+			};
+
+			pmx_gpio_init: pmx-init {
+				marvell,pins = "mpp38";
+				marvell,function = "gpio";
+			};
+
+			pmx_usb_oc: pmx-usb-oc {
+				marvell,pins = "mpp39";
+				marvell,function = "gpio";
+			};
+
+			pmx_leds: pmx-leds {
+				marvell,pins = "mpp41", "mpp42", "mpp43";
+				marvell,function = "gpio";
+			};
+
+			pmx_ge1: pmx-ge1 {
+				marvell,pins = "mpp20", "mpp21", "mpp22", "mpp23",
+					       "mpp24", "mpp25", "mpp26", "mpp27",
+					       "mpp30", "mpp31", "mpp32", "mpp33";
+				marvell,function = "ge1";
+			};
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&pmx_leds>;
+		pinctrl-names = "default";
+
+		led-red {
+			label = "obsa7:red:stat";
+			gpios = <&gpio1 9 1>;
+		};
+
+		led-green {
+			label = "obsa7:green:stat";
+			gpios = <&gpio1 10 1>;
+		};
+
+		led-yellow {
+			label = "obsa7:yellow:stat";
+			gpios = <&gpio1 11 1>;
+		};
+        };
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&pmx_gpio_init>;
+		pinctrl-names = "default";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		button@1 {
+			label = "Init Button";
+			linux,code = <116>;
+			gpios = <&gpio1 6 0>;
+		};
+	};
+};
+
+&nand {
+	chip-delay = <25>;
+	status = "okay";
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+
+	partition@0 {
+		label = "uboot";
+		reg = <0x0 0x1c0000>;
+	};
+
+	partition@1c0000 {
+		label = "env";
+		reg = <0x1c0000 0x2c0000>;
+	};
+
+	partition@480000 {
+		label = "test";
+		reg = <0x480000 0x160000>;
+	};
+
+	partition@5e0000 {
+		label = "conf";
+		reg = <0x5e0000 0x540000>;
+	};
+
+	partition@b20000 {
+		label = "linux";
+		reg = <0xb20000 0x3d40000>;
+	};
+
+	partition@4860000 {
+		label = "user";
+		reg = <0x4860000 0xb7a0000>;
+	};
+};
+
+&mdio {
+	status = "okay";
+
+	ethphy0: ethernet-phy@0 {
+		device_type = "ethernet-phy";
+		reg = <0>;
+	};
+
+	ethphy1: ethernet-phy@1 {
+		device_type = "ethernet-phy";
+		reg = <1>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+	ethernet0-port@0 {
+		phy-handle = <&ethphy0>;
+	};
+};
+
+&eth1 {
+	status = "okay";
+	pinctrl-0 = <&pmx_ge1>;
+	pinctrl-names = "default";
+	ethernet1-port@0 {
+		phy-handle = <&ethphy1>;
+	};
+};