1/* 2 * Copyright 2015 - Maxime Coquelin <mcoquelin.stm32@gmail.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 * You should have received a copy of the GNU General Public 20 * License along with this file; if not, write to the Free 21 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, 22 * MA 02110-1301 USA 23 * 24 * Or, alternatively, 25 * 26 * b) Permission is hereby granted, free of charge, to any person 27 * obtaining a copy of this software and associated documentation 28 * files (the "Software"), to deal in the Software without 29 * restriction, including without limitation the rights to use, 30 * copy, modify, merge, publish, distribute, sublicense, and/or 31 * sell copies of the Software, and to permit persons to whom the 32 * Software is furnished to do so, subject to the following 33 * conditions: 34 * 35 * The above copyright notice and this permission notice shall be 36 * included in all copies or substantial portions of the Software. 37 * 38 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 39 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 40 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 41 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 42 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 43 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 44 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 45 * OTHER DEALINGS IN THE SOFTWARE. 46 */ 47 48/dts-v1/; 49#include "stm32f429.dtsi" 50#include "stm32f429-pinctrl.dtsi" 51#include <dt-bindings/input/input.h> 52#include <dt-bindings/interrupt-controller/irq.h> 53#include <dt-bindings/gpio/gpio.h> 54 55/ { 56 model = "STMicroelectronics STM32F429i-DISCO board"; 57 compatible = "st,stm32f429i-disco", "st,stm32f429"; 58 59 chosen { 60 bootargs = "root=/dev/ram"; 61 stdout-path = "serial0:115200n8"; 62 }; 63 64 memory@90000000 { 65 device_type = "memory"; 66 reg = <0x90000000 0x800000>; 67 }; 68 69 aliases { 70 serial0 = &usart1; 71 }; 72 73 leds { 74 compatible = "gpio-leds"; 75 led-red { 76 gpios = <&gpiog 14 0>; 77 }; 78 led-green { 79 gpios = <&gpiog 13 0>; 80 linux,default-trigger = "heartbeat"; 81 }; 82 }; 83 84 gpio_keys { 85 compatible = "gpio-keys"; 86 #address-cells = <1>; 87 #size-cells = <0>; 88 autorepeat; 89 button@0 { 90 label = "User"; 91 linux,code = <KEY_HOME>; 92 gpios = <&gpioa 0 0>; 93 }; 94 }; 95 96 /* This turns on vbus for otg for host mode (dwc2) */ 97 vcc5v_otg: vcc5v-otg-regulator { 98 compatible = "regulator-fixed"; 99 gpio = <&gpioc 4 0>; 100 regulator-name = "vcc5_host1"; 101 regulator-always-on; 102 }; 103}; 104 105&clk_hse { 106 clock-frequency = <8000000>; 107}; 108 109&crc { 110 status = "okay"; 111}; 112 113&i2c3 { 114 pinctrl-names = "default"; 115 pinctrl-0 = <&i2c3_pins>; 116 clock-frequency = <100000>; 117 status = "okay"; 118 119 stmpe811@41 { 120 compatible = "st,stmpe811"; 121 reg = <0x41>; 122 interrupts = <15 IRQ_TYPE_EDGE_FALLING>; 123 interrupt-parent = <&gpioa>; 124 /* 3.25 MHz ADC clock speed */ 125 st,adc-freq = <1>; 126 /* 12-bit ADC */ 127 st,mod-12b = <1>; 128 /* internal ADC reference */ 129 st,ref-sel = <0>; 130 /* ADC converstion time: 80 clocks */ 131 st,sample-time = <4>; 132 133 stmpe_touchscreen { 134 compatible = "st,stmpe-ts"; 135 /* 8 sample average control */ 136 st,ave-ctrl = <3>; 137 /* 7 length fractional part in z */ 138 st,fraction-z = <7>; 139 /* 140 * 50 mA typical 80 mA max touchscreen drivers 141 * current limit value 142 */ 143 st,i-drive = <1>; 144 /* 1 ms panel driver settling time */ 145 st,settling = <3>; 146 /* 5 ms touch detect interrupt delay */ 147 st,touch-det-delay = <5>; 148 }; 149 150 stmpe_adc { 151 compatible = "st,stmpe-adc"; 152 /* forbid to use ADC channels 3-0 (touch) */ 153 st,norequest-mask = <0x0F>; 154 }; 155 }; 156}; 157 158<dc { 159 status = "okay"; 160 pinctrl-0 = <<dc_pins_b>; 161 pinctrl-names = "default"; 162 163 port { 164 ltdc_out_rgb: endpoint { 165 remote-endpoint = <&panel_in_rgb>; 166 }; 167 }; 168}; 169 170&rtc { 171 assigned-clocks = <&rcc 1 CLK_RTC>; 172 assigned-clock-parents = <&rcc 1 CLK_LSI>; 173 status = "okay"; 174}; 175 176&spi5 { 177 status = "okay"; 178 pinctrl-0 = <&spi5_pins>; 179 pinctrl-names = "default"; 180 #address-cells = <1>; 181 #size-cells = <0>; 182 cs-gpios = <&gpioc 1 GPIO_ACTIVE_LOW>, <&gpioc 2 GPIO_ACTIVE_LOW>; 183 184 l3gd20: l3gd20@0 { 185 compatible = "st,l3gd20-gyro"; 186 spi-max-frequency = <10000000>; 187 st,drdy-int-pin = <2>; 188 interrupt-parent = <&gpioa>; 189 interrupts = <1 IRQ_TYPE_EDGE_RISING>, 190 <2 IRQ_TYPE_EDGE_RISING>; 191 reg = <0>; 192 status = "okay"; 193 }; 194 195 display: display@1{ 196 /* Connect panel-ilitek-9341 to ltdc */ 197 compatible = "st,sf-tc240t-9370-t"; 198 reg = <1>; 199 spi-3wire; 200 spi-max-frequency = <10000000>; 201 dc-gpios = <&gpiod 13 0>; 202 port { 203 panel_in_rgb: endpoint { 204 remote-endpoint = <<dc_out_rgb>; 205 }; 206 }; 207 }; 208}; 209 210&usart1 { 211 pinctrl-0 = <&usart1_pins_a>; 212 pinctrl-names = "default"; 213 status = "okay"; 214}; 215 216&usbotg_hs { 217 compatible = "st,stm32f4x9-fsotg"; 218 dr_mode = "host"; 219 pinctrl-0 = <&usbotg_fs_pins_b>; 220 pinctrl-names = "default"; 221 status = "okay"; 222}; 223