u-boot/arch/arm/dts/imx53-usbarmory.dts

/*
 * USB armory MkI device tree file
 * https://inversepath.com/usbarmory
 *
 * Copyright (C) 2015, Inverse Path
 * Andrej Rosano <andrej@inversepath.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.
 */

/dts-v1/;
#include "imx53.dtsi"

/ {
	model = "Inverse Path USB armory";
	compatible = "inversepath,imx53-usbarmory", "fsl,imx53";
};

/ {
	chosen {
		stdout-path = &uart1;
	};

	memory@70000000 {
		device_type = "memory";
		reg = <0x70000000 0x20000000>;
	};

	leds {
		compatible = "gpio-leds";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_led>;

		user {
			label = "LED";
			gpios = <&gpio4 27 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "heartbeat";
		};
	};
};

/*
 * Not every i.MX53 P/N supports clock > 800MHz.
 * As USB armory does not mount a specific P/N set a safe clock upper limit.
 */
&cpu0 {
	operating-points = <
		/* kHz */
		166666  850000
		400000  900000
		800000 1050000
	>;
};

&esdhc1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_esdhc1>;
	status = "okay";
};

&iomuxc {
	pinctrl_esdhc1: esdhc1grp {
		fsl,pins = <
			MX53_PAD_SD1_DATA0__ESDHC1_DAT0		0x1d5
			MX53_PAD_SD1_DATA1__ESDHC1_DAT1		0x1d5
			MX53_PAD_SD1_DATA2__ESDHC1_DAT2		0x1d5
			MX53_PAD_SD1_DATA3__ESDHC1_DAT3		0x1d5
			MX53_PAD_SD1_CMD__ESDHC1_CMD		0x1d5
			MX53_PAD_SD1_CLK__ESDHC1_CLK		0x1d5
		>;
	};

	pinctrl_i2c1_pmic: i2c1grp {
		fsl,pins = <
			MX53_PAD_EIM_D21__I2C1_SCL	0x80
			MX53_PAD_EIM_D28__I2C1_SDA	0x80
		>;
	};

	pinctrl_led: ledgrp {
		fsl,pins = <
			MX53_PAD_DISP0_DAT6__GPIO4_27 0x1e4
		>;
	};

	/*
	 * UART mode pin header configuration
	 * 3 - GPIO5[26], pull-down 100K
	 * 4 - GPIO5[27], pull-down 100K
	 * 5 - TX, pull-up 100K
	 * 6 - RX, pull-up 100K
	 * 7 - GPIO5[30], pull-down 100K
	 */
	pinctrl_uart1: uart1grp {
		fsl,pins = <
			MX53_PAD_CSI0_DAT8__GPIO5_26		0xc0
			MX53_PAD_CSI0_DAT9__GPIO5_27		0xc0
			MX53_PAD_CSI0_DAT10__UART1_TXD_MUX	0x1e4
			MX53_PAD_CSI0_DAT11__UART1_RXD_MUX	0x1e4
			MX53_PAD_CSI0_DAT12__GPIO5_30		0xc0
		>;
	};
};

&i2c1 {
	pinctrl-0 = <&pinctrl_i2c1_pmic>;
	status = "okay";

	ltc3589: pmic@34 {
		compatible = "lltc,ltc3589-2";
		reg = <0x34>;

		regulators {
			sw1_reg: sw1 {
				regulator-min-microvolt = <591930>;
				regulator-max-microvolt = <1224671>;
				lltc,fb-voltage-divider = <100000 158000>;
				regulator-ramp-delay = <7000>;
				regulator-boot-on;
				regulator-always-on;
			};

			sw2_reg: sw2 {
				regulator-min-microvolt = <704123>;
				regulator-max-microvolt = <1456803>;
				lltc,fb-voltage-divider = <180000 191000>;
				regulator-ramp-delay = <7000>;
				regulator-boot-on;
				regulator-always-on;
			};

			sw3_reg: sw3 {
				regulator-min-microvolt = <1341250>;
				regulator-max-microvolt = <2775000>;
				lltc,fb-voltage-divider = <270000 100000>;
				regulator-ramp-delay = <7000>;
				regulator-boot-on;
				regulator-always-on;
			};

			bb_out_reg: bb-out {
				regulator-min-microvolt = <3387341>;
				regulator-max-microvolt = <3387341>;
				lltc,fb-voltage-divider = <511000 158000>;
				regulator-boot-on;
				regulator-always-on;
			};

			ldo1_reg: ldo1 {
				regulator-min-microvolt = <1306329>;
				regulator-max-microvolt = <1306329>;
				lltc,fb-voltage-divider = <100000 158000>;
				regulator-boot-on;
				regulator-always-on;
			};

			ldo2_reg: ldo2 {
				regulator-min-microvolt = <704123>;
				regulator-max-microvolt = <1456806>;
				lltc,fb-voltage-divider = <180000 191000>;
				regulator-ramp-delay = <7000>;
				regulator-boot-on;
				regulator-always-on;
			};

			ldo3_reg: ldo3 {
				regulator-min-microvolt = <2800000>;
				regulator-max-microvolt = <2800000>;
				regulator-boot-on;
			};

			ldo4_reg: ldo4 {
				regulator-min-microvolt = <1200000>;
				regulator-max-microvolt = <3200000>;
			};
		};
	};
};

&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_uart1>;
	status = "okay";
};

&usbotg {
	dr_mode = "peripheral";
	status = "okay";
};