1/*
  2 * Copyright 2017 - Vikas MANOCHA <vikas.manocha@st.com>
  3 *
  4 * This file is dual-licensed: you can use it either under the terms
  5 * of the GPL or the X11 license, at your option. Note that this dual
  6 * licensing only applies to this file, and not this project as a
  7 * whole.
  8 *
  9 *  a) This file is free software; you can redistribute it and/or
 10 *     modify it under the terms of the GNU General Public License as
 11 *     published by the Free Software Foundation; either version 2 of the
 12 *     License, or (at your option) any later version.
 13 *
 14 *     This file is distributed in the hope that it will be useful,
 15 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 16 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17 *     GNU General Public License for more details.
 18 *
 19 * Or, alternatively,
 20 *
 21 *  b) Permission is hereby granted, free of charge, to any person
 22 *     obtaining a copy of this software and associated documentation
 23 *     files (the "Software"), to deal in the Software without
 24 *     restriction, including without limitation the rights to use,
 25 *     copy, modify, merge, publish, distribute, sublicense, and/or
 26 *     sell copies of the Software, and to permit persons to whom the
 27 *     Software is furnished to do so, subject to the following
 28 *     conditions:
 29 *
 30 *     The above copyright notice and this permission notice shall be
 31 *     included in all copies or substantial portions of the Software.
 32 *
 33 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 34 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 35 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 36 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 37 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 38 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 39 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 40 *     OTHER DEALINGS IN THE SOFTWARE.
 41 */
 42
 43/dts-v1/;
 44#include "stm32f746.dtsi"
 45#include "stm32f746-pinctrl.dtsi"
 46#include <dt-bindings/gpio/gpio.h>
 47#include <dt-bindings/input/input.h>
 48#include <dt-bindings/interrupt-controller/irq.h>
 49
 50/ {
 51	model = "STMicroelectronics STM32F746-DISCO board";
 52	compatible = "st,stm32f746-disco", "st,stm32f746";
 53
 54	chosen {
 55		bootargs = "root=/dev/ram";
 56		stdout-path = "serial0:115200n8";
 57	};
 58
 59	memory@c0000000 {
 60		device_type = "memory";
 61		reg = <0xC0000000 0x800000>;
 62	};
 63
 64	reserved-memory {
 65		#address-cells = <1>;
 66		#size-cells = <1>;
 67		ranges;
 68
 69		linux,cma {
 70			compatible = "shared-dma-pool";
 71			no-map;
 72			size = <0x80000>;
 73			linux,dma-default;
 74		};
 75	};
 76
 77	aliases {
 78		serial0 = &usart1;
 79	};
 80
 81	usbotg_hs_phy: usb-phy {
 82		#phy-cells = <0>;
 83		compatible = "usb-nop-xceiv";
 84		clocks = <&rcc 0 STM32F7_AHB1_CLOCK(OTGHSULPI)>;
 85		clock-names = "main_clk";
 86	};
 87
 88	/* This turns on vbus for otg fs for host mode (dwc2) */
 89	vcc5v_otg_fs: vcc5v-otg-fs-regulator {
 90		compatible = "regulator-fixed";
 91		gpio = <&gpiod 5 0>;
 92		regulator-name = "vcc5_host1";
 93		regulator-always-on;
 94	};
 95
 96	vcc_3v3: vcc-3v3 {
 97		compatible = "regulator-fixed";
 98		regulator-name = "vcc_3v3";
 99		regulator-min-microvolt = <3300000>;
100		regulator-max-microvolt = <3300000>;
101	};
102
103	backlight: backlight {
104		compatible = "gpio-backlight";
105		gpios = <&gpiok 3 GPIO_ACTIVE_HIGH>;
106		status = "okay";
107	};
108
109	panel_rgb: panel-rgb {
110		compatible = "rocktech,rk043fn48h";
111		power-supply = <&vcc_3v3>;
112		backlight = <&backlight>;
113		enable-gpios = <&gpioi 12 GPIO_ACTIVE_HIGH>;
114		status = "okay";
115		port {
116			panel_in_rgb: endpoint {
117				remote-endpoint = <&ltdc_out_rgb>;
118			};
119		};
120	};
121};
122
123&clk_hse {
124	clock-frequency = <25000000>;
125};
126
127&i2c1 {
128	pinctrl-0 = <&i2c1_pins_b>;
129	pinctrl-names = "default";
130	i2c-scl-rising-time-ns = <185>;
131	i2c-scl-falling-time-ns = <20>;
132	status = "okay";
133};
134
135&i2c3 {
136	pinctrl-0 = <&i2c3_pins_a>;
137	pinctrl-names = "default";
138	clock-frequency = <400000>;
139	status = "okay";
140
141	touchscreen@38 {
142		compatible = "edt,edt-ft5306";
143		reg = <0x38>;
144		interrupt-parent = <&gpioi>;
145		interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
146		touchscreen-size-x = <480>;
147		touchscreen-size-y = <272>;
148	};
149};
150
151&ltdc {
152	pinctrl-0 = <&ltdc_pins_a>;
153	pinctrl-names = "default";
154	status = "okay";
155
156	port {
157		ltdc_out_rgb: endpoint {
158			remote-endpoint = <&panel_in_rgb>;
159		};
160	};
161};
162
163&sdio1 {
164	status = "okay";
165	vmmc-supply = <&vcc_3v3>;
166	cd-gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
167	pinctrl-names = "default", "opendrain", "sleep";
168	pinctrl-0 = <&sdio_pins_a>;
169	pinctrl-1 = <&sdio_pins_od_a>;
170	pinctrl-2 = <&sdio_pins_sleep_a>;
171	bus-width = <4>;
172};
173
174&timers5 {
175	/* Override timer5 to act as clockevent */
176	compatible = "st,stm32-timer";
177	interrupts = <50>;
178	status = "okay";
179	/delete-property/#address-cells;
180	/delete-property/#size-cells;
181	/delete-property/clock-names;
182	/delete-node/pwm;
183	/delete-node/timer@4;
184};
185
186&usart1 {
187	pinctrl-0 = <&usart1_pins_b>;
188	pinctrl-names = "default";
189	status = "okay";
190};
191
192&usbotg_fs {
193	dr_mode = "host";
194	pinctrl-0 = <&usbotg_fs_pins_a>;
195	pinctrl-names = "default";
196	status = "okay";
197};
198
199&usbotg_hs {
200	dr_mode = "host";
201	phys = <&usbotg_hs_phy>;
202	phy-names = "usb2-phy";
203	pinctrl-0 = <&usbotg_hs_pins_b>;
204	pinctrl-names = "default";
205	status = "okay";
206};