arch/arm/boot/dts/stm32f746-disco.dts

   1 /*
   2  * Copyright 2017 - Vikas MANOCHA <vikas.manocha@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/input/input.h>
  47 #include <dt-bindings/gpio/gpio.h>
  48
  49 / {
  50         model = "STMicroelectronics STM32F746-DISCO board";
  51         compatible = "st,stm32f746-disco", "st,stm32f746";
  52
  53         chosen {
  54                 bootargs = "root=/dev/ram";
  55                 stdout-path = "serial0:115200n8";
  56         };
  57
  58         memory {
  59                 reg = <0xC0000000 0x800000>;
  60         };
  61
  62         aliases {
  63                 serial0 = &usart1;
  64         };
  65
  66         usbotg_hs_phy: usb-phy {
  67                 #phy-cells = <0>;
  68                 compatible = "usb-nop-xceiv";
  69                 clocks = <&rcc 0 STM32F7_AHB1_CLOCK(OTGHSULPI)>;
  70                 clock-names = "main_clk";
  71         };
  72
  73         /* This turns on vbus for otg fs for host mode (dwc2) */
  74         vcc5v_otg_fs: vcc5v-otg-fs-regulator {
  75                 compatible = "regulator-fixed";
  76                 gpio = <&gpiod 5 0>;
  77                 regulator-name = "vcc5_host1";
  78                 regulator-always-on;
  79         };
  80
  81         mmc_vcard: mmc_vcard {
  82                 compatible = "regulator-fixed";
  83                 regulator-name = "mmc_vcard";
  84                 regulator-min-microvolt = <3300000>;
  85                 regulator-max-microvolt = <3300000>;
  86         };
  87 };
  88
  89 &clk_hse {
  90         clock-frequency = <25000000>;
  91 };
  92
  93 &i2c1 {
  94         pinctrl-0 = <&i2c1_pins_b>;
  95         pinctrl-names = "default";
  96         i2c-scl-rising-time-ns = <185>;
  97         i2c-scl-falling-time-ns = <20>;
  98         status = "okay";
  99 };
 100
 101 &sdio1 {
 102         status = "okay";
 103         vmmc-supply = <&mmc_vcard>;
 104         cd-gpios = <&gpioc 13 GPIO_ACTIVE_HIGH>;
 105         cd-inverted;
 106         pinctrl-names = "default", "opendrain";
 107         pinctrl-0 = <&sdio_pins_a>;
 108         pinctrl-1 = <&sdio_pins_od_a>;
 109         bus-width = <4>;
 110 };
 111
 112 &usart1 {
 113         pinctrl-0 = <&usart1_pins_b>;
 114         pinctrl-names = "default";
 115         status = "okay";
 116 };
 117
 118 &usbotg_fs {
 119         dr_mode = "host";
 120         pinctrl-0 = <&usbotg_fs_pins_a>;
 121         pinctrl-names = "default";
 122         status = "okay";
 123 };
 124
 125 &usbotg_hs {
 126         dr_mode = "host";
 127         phys = <&usbotg_hs_phy>;
 128         phy-names = "usb2-phy";
 129         pinctrl-0 = <&usbotg_hs_pins_b>;
 130         pinctrl-names = "default";
 131         status = "okay";
 132 };