arch/arm/boot/dts/stm32h743i-eval.dts

   1 /*
   2  * Copyright 2017 - Alexandre Torgue <alexandre.torgue@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 "stm32h743.dtsi"
  45 #include "stm32h743-pinctrl.dtsi"
  46
  47 / {
  48         model = "STMicroelectronics STM32H743i-EVAL board";
  49         compatible = "st,stm32h743i-eval", "st,stm32h743";
  50
  51         chosen {
  52                 bootargs = "root=/dev/ram";
  53                 stdout-path = "serial0:115200n8";
  54         };
  55
  56         memory {
  57                 device_type = "memory";
  58                 reg = <0xd0000000 0x2000000>;
  59         };
  60
  61         aliases {
  62                 serial0 = &usart1;
  63         };
  64
  65         vdda: regulator-vdda {
  66                 compatible = "regulator-fixed";
  67                 regulator-name = "vdda";
  68                 regulator-min-microvolt = <3300000>;
  69                 regulator-max-microvolt = <3300000>;
  70                 regulator-always-on;
  71         };
  72
  73         usbotg_hs_phy: usb-phy {
  74                 #phy-cells = <0>;
  75                 compatible = "usb-nop-xceiv";
  76                 clocks = <&rcc USB1ULPI_CK>;
  77                 clock-names = "main_clk";
  78         };
  79
  80 };
  81
  82 &adc_12 {
  83         vref-supply = <&vdda>;
  84         status = "okay";
  85         adc1: adc@0 {
  86                 /* potentiometer */
  87                 st,adc-channels = <0>;
  88                 status = "okay";
  89         };
  90 };
  91
  92 &clk_hse {
  93         clock-frequency = <25000000>;
  94 };
  95
  96 &i2c1 {
  97         pinctrl-0 = <&i2c1_pins_a>;
  98         pinctrl-names = "default";
  99         i2c-scl-rising-time-ns = <185>;
 100         i2c-scl-falling-time-ns = <20>;
 101         status = "okay";
 102 };
 103
 104 &rtc {
 105         status = "okay";
 106 };
 107
 108 &usart1 {
 109         pinctrl-0 = <&usart1_pins>;
 110         pinctrl-names = "default";
 111         status = "okay";
 112 };
 113
 114 &usbotg_hs {
 115         pinctrl-0 = <&usbotg_hs_pins_a>;
 116         pinctrl-names = "default";
 117         phys = <&usbotg_hs_phy>;
 118         phy-names = "usb2-phy";
 119         dr_mode = "otg";
 120         status = "okay";
 121 };