1 /* 2 * Copyright 2017 - Vikas MANOCHA <vikas.manocha (at) 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 = <<dc_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 <dc { 152 pinctrl-0 = <<dc_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 }; 207
Indexes created Sun Feb 15 12:34:49 CET 2026