arch/arm/dts/stm32f429-disco.dts

   1 /*
   2  * Copyright (C) 2015, STMicroelectronics - All Rights Reserved
   3  * Author(s):  Maxime Coquelin <mcoquelin.stm32@gmail.com> for STMicroelectronics.
   4  *
   5  * This file is dual-licensed: you can use it either under the terms
   6  * of the GPL or the X11 license, at your option. Note that this dual
   7  * licensing only applies to this file, and not this project as a
   8  * whole.
   9  *
  10  *  a) This file is free software; you can redistribute it and/or
  11  *     modify it under the terms of the GNU General Public License as
  12  *     published by the Free Software Foundation; either version 2 of the
  13  *     License, or (at your option) any later version.
  14  *
  15  *     This file is distributed in the hope that it will be useful,
  16  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *     GNU General Public License for more details.
  19  *
  20  * Or, alternatively,
  21  *
  22  *  b) Permission is hereby granted, free of charge, to any person
  23  *     obtaining a copy of this software and associated documentation
  24  *     files (the "Software"), to deal in the Software without
  25  *     restriction, including without limitation the rights to use,
  26  *     copy, modify, merge, publish, distribute, sublicense, and/or
  27  *     sell copies of the Software, and to permit persons to whom the
  28  *     Software is furnished to do so, subject to the following
  29  *     conditions:
  30  *
  31  *     The above copyright notice and this permission notice shall be
  32  *     included in all copies or substantial portions of the Software.
  33  *
  34  *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  35  *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  36  *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  37  *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  38  *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  39  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  40  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  41  *     OTHER DEALINGS IN THE SOFTWARE.
  42  */
  43
  44 /dts-v1/;
  45 #include "stm32f429.dtsi"
  46 #include "stm32f429-pinctrl.dtsi"
  47 #include <dt-bindings/input/input.h>
  48
  49 / {
  50         model = "STMicroelectronics STM32F429i-DISCO board";
  51         compatible = "st,stm32f429i-disco", "st,stm32f429";
  52
  53         chosen {
  54                 bootargs = "root=/dev/ram";
  55                 stdout-path = "serial0:115200n8";
  56         };
  57
  58         memory {
  59                 reg = <0x90000000 0x800000>;
  60         };
  61
  62         aliases {
  63                 serial0 = &usart1;
  64         };
  65
  66         leds {
  67                 compatible = "gpio-leds";
  68                 red {
  69                         gpios = <&gpiog 14 0>;
  70                 };
  71                 green {
  72                         gpios = <&gpiog 13 0>;
  73                         linux,default-trigger = "heartbeat";
  74                 };
  75         };
  76
  77         gpio_keys {
  78                 compatible = "gpio-keys";
  79                 #address-cells = <1>;
  80                 #size-cells = <0>;
  81                 autorepeat;
  82                 button@0 {
  83                         label = "User";
  84                         linux,code = <KEY_HOME>;
  85                         gpios = <&gpioa 0 0>;
  86                 };
  87         };
  88
  89         /* This turns on vbus for otg for host mode (dwc2) */
  90         vcc5v_otg: vcc5v-otg-regulator {
  91                 compatible = "regulator-fixed";
  92                 gpio = <&gpioc 4 0>;
  93                 regulator-name = "vcc5_host1";
  94                 regulator-always-on;
  95         };
  96 };
  97
  98 &clk_hse {
  99         clock-frequency = <8000000>;
 100 };
 101
 102 &crc {
 103         status = "okay";
 104 };
 105
 106 &rtc {
 107         assigned-clocks = <&rcc 1 CLK_RTC>;
 108         assigned-clock-parents = <&rcc 1 CLK_LSI>;
 109         status = "okay";
 110 };
 111
 112 &usart1 {
 113         pinctrl-0 = <&usart1_pins_a>;
 114         pinctrl-names = "default";
 115         status = "okay";
 116 };
 117
 118 &usbotg_hs {
 119         compatible = "st,stm32f4x9-fsotg";
 120         dr_mode = "host";
 121         pinctrl-0 = <&usbotg_fs_pins_b>;
 122         pinctrl-names = "default";
 123         status = "okay";
 124 };