ARM: dts: imx6: Add Savageboard common file

* Memory
  memblock for DDR3 1GB

* Regulator
  3.3V for panel and backlight.

* Display
  Enable HDMI and LVDS panel. Savageboard supports AVIC TM097TDH02 panel
  which is compatible with Hannstar HSD100PXN1, so reuse it.

* Clock
  The commit d28be499 ("ARM: dts: imx6qdl-sabresd: Allow HDMI and
  LVDS to work simultaneously") is applied to support LVDS and HDMI output
  at the same time.

* Pinmux
  Support eMMC, ethernet, gpio key for power button, I2C, PWM, SD card
  and UART.

* Others
  Enable ethernet, UART1 debug, USB host, USDHC3 for microSD card and
  USDHC4 for built-in eMMC storage.
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-savageboard.dtsi

+/*
+ * Copyright (C) 2017 Milo Kim <woogyom.kim@gmail.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file 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 file 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.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	chosen {
+		stdout-path = &uart1;
+	};
+
+	memory@10000000 {
+		device_type = "memory";
+		reg = <0x10000000 0x40000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_keys>;
+
+		power {
+			gpios = <&gpio3 7 GPIO_ACTIVE_LOW>;
+			label = "Power Button";
+			linux,code = <KEY_POWER>;
+			wakeup-source;
+		};
+	};
+
+	panel {
+		compatible = "avic,tm097tdh02", "hannstar,hsd100pxn1";
+		backlight = <&panel_bl>;
+		power-supply = <&reg_3p3v>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&lvds0_out>;
+			};
+		};
+	};
+
+	panel_bl: backlight {
+		compatible = "pwm-backlight";
+		brightness-levels = <0 4 8 16 32 64 128 255>;
+		default-brightness-level = <4>;
+		power-supply = <&reg_3p3v>;
+		pwms = <&pwm1 0 10000>;
+	};
+
+	reg_3p3v: regulator-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "3P3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+};
+
+&clks {
+	assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
+			  <&clks IMX6QDL_CLK_LDB_DI1_SEL>;
+	assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>,
+				 <&clks IMX6QDL_CLK_PLL3_USB_OTG>;
+};
+
+&fec {
+	phy-mode = "rgmii";
+	phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet>;
+	status = "okay";
+};
+
+&hdmi {
+	ddc-i2c-bus = <&i2c2>;
+	status = "okay";
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+};
+
+&ldb {
+	status = "okay";
+
+	lvds-channel@0 {
+		reg = <0>;
+		status = "okay";
+
+		port@4 {
+			reg = <4>;
+
+			lvds0_out: endpoint {
+				remote-endpoint = <&panel_in>;
+			};
+		};
+	};
+};
+
+&pwm1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm1>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+&usbh1 {
+	status = "okay";
+};
+
+/* SD card */
+&usdhc3 {
+	bus-width = <4>;
+	cd-gpios = <&gpio2 0 GPIO_ACTIVE_LOW>;
+	no-1-8-v;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sd>;
+	status = "okay";
+};
+
+/* eMMC */
+&usdhc4 {
+	bus-width = <8>;
+	keep-power-in-suspend;
+	no-1-8-v;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_emmc>;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_emmc: emmcgrp {
+		fsl,pins = <
+			MX6QDL_PAD_SD4_CMD__SD4_CMD		0x17059
+			MX6QDL_PAD_SD4_CLK__SD4_CLK		0x10059
+			MX6QDL_PAD_SD4_DAT0__SD4_DATA0		0x17059
+			MX6QDL_PAD_SD4_DAT1__SD4_DATA1		0x17059
+			MX6QDL_PAD_SD4_DAT2__SD4_DATA2		0x17059
+			MX6QDL_PAD_SD4_DAT3__SD4_DATA3		0x17059
+			MX6QDL_PAD_SD4_DAT4__SD4_DATA4		0x17059
+			MX6QDL_PAD_SD4_DAT5__SD4_DATA5		0x17059
+			MX6QDL_PAD_SD4_DAT6__SD4_DATA6		0x17059
+			MX6QDL_PAD_SD4_DAT7__SD4_DATA7		0x17059
+		>;
+	};
+
+	pinctrl_enet: enetgrp {
+		fsl,pins = <
+			MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x1b0b0
+			MX6QDL_PAD_ENET_MDC__ENET_MDC		0x1b0b0
+			MX6QDL_PAD_RGMII_TXC__RGMII_TXC		0x1b030
+			MX6QDL_PAD_RGMII_TD0__RGMII_TD0		0x1b030
+			MX6QDL_PAD_RGMII_TD1__RGMII_TD1		0x1b030
+			MX6QDL_PAD_RGMII_TD2__RGMII_TD2		0x1b030
+			MX6QDL_PAD_RGMII_TD3__RGMII_TD3		0x1b030
+			MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL	0x1b030
+			MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK	0x1b0b0
+			MX6QDL_PAD_RGMII_RXC__RGMII_RXC		0x1b030
+			MX6QDL_PAD_RGMII_RD0__RGMII_RD0		0x1b030
+			MX6QDL_PAD_RGMII_RD1__RGMII_RD1		0x1b030
+			MX6QDL_PAD_RGMII_RD2__RGMII_RD2		0x1b030
+			MX6QDL_PAD_RGMII_RD3__RGMII_RD3		0x1b030
+			MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL	0x1b030
+			/* PHY reset */
+			MX6QDL_PAD_ENET_CRS_DV__GPIO1_IO25	0x1b0b0
+		>;
+	};
+
+	pinctrl_gpio_keys: gpiokeysgrp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_DA7__GPIO3_IO07		0x1b0b1
+		>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL3__I2C2_SCL		0x4001b8b1
+			MX6QDL_PAD_KEY_ROW3__I2C2_SDA		0x4001b8b1
+		>;
+	};
+
+	pinctrl_pwm1: pwm1grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD1_DAT3__PWM1_OUT		0x1b0b1
+		>;
+	};
+
+	pinctrl_sd: sdgrp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_CMD__SD3_CMD		0x17059
+			MX6QDL_PAD_SD3_CLK__SD3_CLK		0x10059
+			MX6QDL_PAD_SD3_DAT0__SD3_DATA0		0x17059
+			MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x17059
+			MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x17059
+			MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x17059
+			/* CD pin */
+			MX6QDL_PAD_NANDF_D0__GPIO2_IO00		0x1b0b1
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA	0x1b0b1
+			MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA	0x1b0b1
+		>;
+	};
+};