arch/arm/boot/dts/stm32f429-disco.dts

   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
  53 / {
  54         model = "STMicroelectronics STM32F429i-DISCO board";
  55         compatible = "st,stm32f429i-disco", "st,stm32f429";
  56
  57         chosen {
  58                 bootargs = "root=/dev/ram";
  59                 stdout-path = "serial0:115200n8";
  60         };
  61
  62         memory {
  63                 reg = <0x90000000 0x800000>;
  64         };
  65
  66         aliases {
  67                 serial0 = &usart1;
  68         };
  69
  70         leds {
  71                 compatible = "gpio-leds";
  72                 red {
  73                         gpios = <&gpiog 14 0>;
  74                 };
  75                 green {
  76                         gpios = <&gpiog 13 0>;
  77                         linux,default-trigger = "heartbeat";
  78                 };
  79         };
  80
  81         gpio_keys {
  82                 compatible = "gpio-keys";
  83                 #address-cells = <1>;
  84                 #size-cells = <0>;
  85                 autorepeat;
  86                 button@0 {
  87                         label = "User";
  88                         linux,code = <KEY_HOME>;
  89                         gpios = <&gpioa 0 0>;
  90                 };
  91         };
  92
  93         /* This turns on vbus for otg for host mode (dwc2) */
  94         vcc5v_otg: vcc5v-otg-regulator {
  95                 compatible = "regulator-fixed";
  96                 gpio = <&gpioc 4 0>;
  97                 regulator-name = "vcc5_host1";
  98                 regulator-always-on;
  99         };
 100 };
 101
 102 &clk_hse {
 103         clock-frequency = <8000000>;
 104 };
 105
 106 &crc {
 107         status = "okay";
 108 };
 109
 110 &rtc {
 111         assigned-clocks = <&rcc 1 CLK_RTC>;
 112         assigned-clock-parents = <&rcc 1 CLK_LSI>;
 113         status = "okay";
 114 };
 115
 116 &usart1 {
 117         pinctrl-0 = <&usart1_pins_a>;
 118         pinctrl-names = "default";
 119         status = "okay";
 120 };
 121
 122 &usbotg_hs {
 123         compatible = "st,stm32f4x9-fsotg";
 124         dr_mode = "host";
 125         pinctrl-0 = <&usbotg_fs_pins_b>;
 126         pinctrl-names = "default";
 127         status = "okay";
 128 };