ARM: dts: Add support for the cpuimx51 board from Eukrea and its baseboard.

The following devices/functionalities were added:
* Main and secondary UARTs.
* i2c and the pcf8563 device.
* Ethernet.
* NAND.
* The BP1 button.
* The LED.
* Watchdog
* SD.

Cc: Rob Herring <[e-mail]>
Cc: Pawel Moll <[e-mail]>
Cc: Mark Rutland <[e-mail]>
Cc: Stephen Warren <[e-mail]>
Cc: Ian Campbell <[e-mail]>
Cc: [e-mail]
Cc: Sascha Hauer <[e-mail]>
Cc: [e-mail]
Cc: Eric Bénard <[e-mail]>
Signed-off-by: Denis Carikli <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/Makefile

···
 	imx51-apf51.dtb \
 	imx51-apf51dev.dtb \
 	imx51-babbage.dtb \
+	imx51-eukrea-mbimxsd51-baseboard.dtb \
 	imx53-ard.dtb \
 	imx53-evk.dtb \
 	imx53-m53evk.dtb \

arch/arm/boot/dts/imx51-eukrea-cpuimx51.dtsi

···
+/*
+ * Copyright 2013 Eukréa Electromatique <[e-mail]>
+ *
+ * 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.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include "imx51.dtsi"
+
+/ {
+	model = "Eukrea CPUIMX51";
+	compatible = "eukrea,cpuimx51", "fsl,imx51";
+
+	memory {
+		reg = <0x90000000 0x10000000>; /* 256M */
+	};
+};
+
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	pcf8563@51 {
+		compatible = "nxp,pcf8563";
+		reg = <0x51>;
+	};
+};
+
+&iomuxc {
+	imx51-eukrea {
+		pinctrl_tsc2007_1: tsc2007grp-1 {
+			fsl,pins = <
+				MX51_PAD_GPIO_NAND__GPIO_NAND 0x1f5
+				MX51_PAD_NANDF_D8__GPIO4_0 0x1f5
+			>;
+		};
+
+		pinctrl_fec: fecgrp {
+			fsl,pins = <
+				MX51_PAD_DI_GP3__FEC_TX_ER		0x80000000
+				MX51_PAD_DI2_PIN4__FEC_CRS		0x80000000
+				MX51_PAD_DI2_PIN2__FEC_MDC		0x80000000
+				MX51_PAD_DI2_PIN3__FEC_MDIO		0x80000000
+				MX51_PAD_DI2_DISP_CLK__FEC_RDATA1	0x80000000
+				MX51_PAD_DI_GP4__FEC_RDATA2		0x80000000
+				MX51_PAD_DISP2_DAT0__FEC_RDATA3		0x80000000
+				MX51_PAD_DISP2_DAT1__FEC_RX_ER		0x80000000
+				MX51_PAD_DISP2_DAT6__FEC_TDATA1		0x80000000
+				MX51_PAD_DISP2_DAT7__FEC_TDATA2		0x80000000
+				MX51_PAD_DISP2_DAT8__FEC_TDATA3		0x80000000
+				MX51_PAD_DISP2_DAT9__FEC_TX_EN		0x80000000
+				MX51_PAD_DISP2_DAT10__FEC_COL		0x80000000
+				MX51_PAD_DISP2_DAT11__FEC_RX_CLK	0x80000000
+				MX51_PAD_DISP2_DAT12__FEC_RX_DV		0x80000000
+				MX51_PAD_DISP2_DAT13__FEC_TX_CLK	0x80000000
+				MX51_PAD_DISP2_DAT14__FEC_RDATA0	0x80000000
+				MX51_PAD_DISP2_DAT15__FEC_TDATA0	0x80000000
+			>;
+		};
+
+		pinctrl_i2c1: i2c1grp {
+			fsl,pins = <
+				MX51_PAD_SD2_CMD__I2C1_SCL		0x400001ed
+				MX51_PAD_SD2_CLK__I2C1_SDA		0x400001ed
+			>;
+		};
+	};
+};
+
+&nfc {
+	nand-bus-width = <8>;
+	nand-ecc-mode = "hw";
+	nand-on-flash-bbt;
+	status = "okay";
+};

arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts

···
+/*
+ * Copyright 2013 Eukréa Electromatique <[e-mail]>
+ *
+ * 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.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+/dts-v1/;
+#include "imx51-eukrea-cpuimx51.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Eukrea CPUIMX51";
+	compatible = "eukrea,mbimxsd51","eukrea,cpuimx51", "fsl,imx51";
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpiokeys_1>;
+
+		button-1 {
+			label = "BP1";
+			gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+			linux,code = <256>;
+			gpio-key,wakeup;
+			linux,input-type = <1>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpioled>;
+
+		led1 {
+			label = "led1";
+			gpios = <&gpio3 30 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	sound {
+		compatible = "eukrea,asoc-tlv320";
+		eukrea,model = "imx51-eukrea-tlv320aic23";
+		ssi-controller = <&ssi2>;
+		fsl,mux-int-port = <2>;
+		fsl,mux-ext-port = <3>;
+	};
+};
+
+&audmux {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_audmux>;
+	status = "okay";
+};
+
+&esdhc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_esdhc1 &pinctrl_esdhc1_cd>;
+	fsl,cd-controller;
+	status = "okay";
+};
+
+&i2c1 {
+	tlv320aic23: codec@1a {
+		compatible = "ti,tlv320aic23";
+		reg = <0x1a>;
+	};
+};
+
+&iomuxc {
+	imx51-eukrea {
+		pinctrl_audmux: audmuxgrp {
+			fsl,pins = <
+				MX51_PAD_AUD3_BB_TXD__AUD3_TXD		0x80000000
+				MX51_PAD_AUD3_BB_RXD__AUD3_RXD		0x80000000
+				MX51_PAD_AUD3_BB_CK__AUD3_TXC		0x80000000
+				MX51_PAD_AUD3_BB_FS__AUD3_TXFS		0x80000000
+			>;
+		};
+
+		pinctrl_esdhc1: esdhc1grp {
+			fsl,pins = <
+				MX51_PAD_SD1_CMD__SD1_CMD		0x400020d5
+				MX51_PAD_SD1_CLK__SD1_CLK		0x20d5
+				MX51_PAD_SD1_DATA0__SD1_DATA0		0x20d5
+				MX51_PAD_SD1_DATA1__SD1_DATA1		0x20d5
+				MX51_PAD_SD1_DATA2__SD1_DATA2		0x20d5
+				MX51_PAD_SD1_DATA3__SD1_DATA3		0x20d5
+			>;
+		};
+
+		pinctrl_uart1: uart1grp {
+			fsl,pins = <
+				MX51_PAD_UART1_RXD__UART1_RXD		0x1c5
+				MX51_PAD_UART1_TXD__UART1_TXD		0x1c5
+			>;
+		};
+
+		pinctrl_uart3: uart3grp {
+			fsl,pins = <
+				MX51_PAD_UART3_RXD__UART3_RXD		0x1c5
+				MX51_PAD_UART3_TXD__UART3_TXD		0x1c5
+			>;
+		};
+
+		pinctrl_uart3_rtscts: uart3rtsctsgrp {
+			fsl,pins = <
+				MX51_PAD_KEY_COL4__UART3_RTS		0x1c5
+				MX51_PAD_KEY_COL5__UART3_CTS		0x1c5
+			>;
+		};
+
+		pinctrl_backlight_1: backlightgrp-1 {
+			fsl,pins = <
+				MX51_PAD_DI1_D1_CS__GPIO3_4 0x1f5
+			>;
+		};
+
+		pinctrl_esdhc1_cd: esdhc1_cd {
+			fsl,pins = <
+				MX51_PAD_GPIO1_0__SD1_CD 0x20d5
+			>;
+		};
+
+		pinctrl_gpiokeys_1: gpiokeysgrp-1 {
+			fsl,pins = <
+				MX51_PAD_NANDF_D9__GPIO3_31 0x1f5
+			>;
+		};
+
+		pinctrl_gpioled: gpioledgrp-1 {
+			fsl,pins = <
+				MX51_PAD_NANDF_D10__GPIO3_30 0x80000000
+			>;
+		};
+
+		pinctrl_reg_lcd_3v3: reg_lcd_3v3 {
+			fsl,pins = <
+				MX51_PAD_CSI1_D9__GPIO3_13 0x1f5
+			>;
+		};
+	};
+};
+
+&ssi2 {
+	codec-handle = <&tlv320aic23>;
+	fsl,mode = "i2s-slave";
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	fsl,uart-has-rtscts;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3 &pinctrl_uart3_rtscts>;
+	fsl,uart-has-rtscts;
+	status = "okay";
+};