ARM: mvebu: add Device Tree for the Armada 385 DB board

The Armada 385 DB board is the development board from Marvell for the
Armada 385 SoC. This commit adds a Device Tree description for this
board, which enables the following features:

 * Network interfaces
 * I2C buses
 * SDIO
 * Serial port
 * SPI bus, with a SPI flash
 * PCIe interfaces
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/Makefile

@@ -127,6 +127,7 @@ dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
 	armada-370-netgear-rn104.dtb \
 	armada-370-rd.dtb \
 	armada-375-db.dtb \
+	armada-385-db.dtb \
 	armada-xp-axpwifiap.dtb \
 	armada-xp-db.dtb \
 	armada-xp-gp.dtb \

arch/arm/boot/dts/armada-385-db.dts

+/*
+ * Device Tree file for Marvell Armada 385 evaluation board
+ * (DB-88F6820)
+ *
+ *  Copyright (C) 2014 Marvell
+ *
+ * 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 "armada-385.dtsi"
+
+/ {
+	model = "Marvell Armada 385 Development Board";
+	compatible = "marvell,a385-db", "marvell,armada385", "marvell,armada38x";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x10000000>; /* 256 MB */
+	};
+
+	soc {
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
+			  MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000>;
+
+		internal-regs {
+			spi@10600 {
+				status = "okay";
+
+				spi-flash@0 {
+					#address-cells = <1>;
+					#size-cells = <1>;
+					compatible = "w25q32";
+					reg = <0>; /* Chip select 0 */
+					spi-max-frequency = <108000000>;
+				};
+			};
+
+			i2c@11000 {
+				status = "okay";
+				clock-frequency = <100000>;
+			};
+
+			i2c@11100 {
+				status = "okay";
+				clock-frequency = <100000>;
+			};
+
+			serial@12000 {
+				clock-frequency = <200000000>;
+				status = "okay";
+			};
+
+			ethernet@30000 {
+				status = "okay";
+				phy = <&phy1>;
+				phy-mode = "rgmii";
+			};
+
+			ethernet@70000 {
+				status = "okay";
+				phy = <&phy0>;
+				phy-mode = "rgmii";
+			};
+
+			mdio {
+				phy0: ethernet-phy@0 {
+					reg = <0>;
+				};
+
+				phy1: ethernet-phy@1 {
+					reg = <1>;
+				};
+			};
+		};
+
+		pcie-controller {
+			status = "okay";
+			/*
+			 * The two PCIe units are accessible through
+			 * standard PCIe slots on the board.
+			 */
+			pcie@1,0 {
+				/* Port 0, Lane 0 */
+				status = "okay";
+			};
+			pcie@2,0 {
+				/* Port 1, Lane 0 */
+				status = "okay";
+			};
+		};
+	};
+};