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 leds { 82 compatible = "gpio-leds"; 83 led-usr { 84 gpios = <&gpioi 1 GPIO_ACTIVE_HIGH>; 85 linux,default-trigger = "heartbeat"; 86 }; 87 }; 88 89 gpio-keys { 90 compatible = "gpio-keys"; 91 autorepeat; 92 button-0 { 93 label = "User"; 94 linux,code = <KEY_HOME>; 95 gpios = <&gpioi 11 GPIO_ACTIVE_HIGH>; 96 }; 97 }; 98 99 usbotg_hs_phy: usb-phy { 100 #phy-cells = <0>; 101 compatible = "usb-nop-xceiv"; 102 clocks = <&rcc 0 STM32F7_AHB1_CLOCK(OTGHSULPI)>; 103 clock-names = "main_clk"; 104 }; 105 106 /* This turns on vbus for otg fs for host mode (dwc2) */ 107 vcc5v_otg_fs: vcc5v-otg-fs-regulator { 108 compatible = "regulator-fixed"; 109 gpio = <&gpiod 5 0>; 110 regulator-name = "vcc5_host1"; 111 regulator-always-on; 112 }; 113 114 vcc_3v3: vcc-3v3 { 115 compatible = "regulator-fixed"; 116 regulator-name = "vcc_3v3"; 117 regulator-min-microvolt = <3300000>; 118 regulator-max-microvolt = <3300000>; 119 }; 120 121 backlight: backlight { 122 compatible = "gpio-backlight"; 123 gpios = <&gpiok 3 GPIO_ACTIVE_HIGH>; 124 status = "okay"; 125 }; 126 127 panel_rgb: panel-rgb { 128 compatible = "rocktech,rk043fn48h"; 129 power-supply = <&vcc_3v3>; 130 backlight = <&backlight>; 131 enable-gpios = <&gpioi 12 GPIO_ACTIVE_HIGH>; 132 status = "okay"; 133 port { 134 panel_in_rgb: endpoint { 135 remote-endpoint = <<dc_out_rgb>; 136 }; 137 }; 138 }; 139}; 140 141&clk_hse { 142 clock-frequency = <25000000>; 143}; 144 145&i2c1 { 146 pinctrl-0 = <&i2c1_pins_b>; 147 pinctrl-names = "default"; 148 i2c-scl-rising-time-ns = <185>; 149 i2c-scl-falling-time-ns = <20>; 150 status = "okay"; 151}; 152 153&i2c3 { 154 pinctrl-0 = <&i2c3_pins_a>; 155 pinctrl-names = "default"; 156 clock-frequency = <400000>; 157 status = "okay"; 158 159 touchscreen@38 { 160 compatible = "edt,edt-ft5306"; 161 reg = <0x38>; 162 interrupt-parent = <&gpioi>; 163 interrupts = <13 IRQ_TYPE_EDGE_FALLING>; 164 touchscreen-size-x = <480>; 165 touchscreen-size-y = <272>; 166 }; 167}; 168 169<dc { 170 pinctrl-0 = <<dc_pins_a>; 171 pinctrl-names = "default"; 172 status = "okay"; 173 174 port { 175 ltdc_out_rgb: endpoint { 176 remote-endpoint = <&panel_in_rgb>; 177 }; 178 }; 179}; 180 181&sdio1 { 182 status = "okay"; 183 vmmc-supply = <&vcc_3v3>; 184 cd-gpios = <&gpioc 13 GPIO_ACTIVE_LOW>; 185 pinctrl-names = "default", "opendrain", "sleep"; 186 pinctrl-0 = <&sdio_pins_a>; 187 pinctrl-1 = <&sdio_pins_od_a>; 188 pinctrl-2 = <&sdio_pins_sleep_a>; 189 bus-width = <4>; 190}; 191 192&timers5 { 193 /* Override timer5 to act as clockevent */ 194 compatible = "st,stm32-timer"; 195 interrupts = <50>; 196 status = "okay"; 197 /delete-property/#address-cells; 198 /delete-property/#size-cells; 199 /delete-property/clock-names; 200 /delete-node/pwm; 201 /delete-node/timer@4; 202}; 203 204&usart1 { 205 pinctrl-0 = <&usart1_pins_b>; 206 pinctrl-names = "default"; 207 status = "okay"; 208}; 209 210&usbotg_fs { 211 dr_mode = "host"; 212 pinctrl-0 = <&usbotg_fs_pins_a>; 213 pinctrl-names = "default"; 214 status = "okay"; 215}; 216 217&usbotg_hs { 218 dr_mode = "host"; 219 phys = <&usbotg_hs_phy>; 220 phy-names = "usb2-phy"; 221 pinctrl-0 = <&usbotg_hs_pins_b>; 222 pinctrl-names = "default"; 223 status = "okay"; 224}; 225