FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm/stm32f746-disco.dts

     /*
      * Copyright 2017 - Vikas MANOCHA <vikas.manocha@st.com>
      *
      * This file is dual-licensed: you can use it either under the terms
      * of the GPL or the X11 license, at your option. Note that this dual
      * licensing only applies to this file, and not this project as a
      * whole.
      *
      *  a) This file is free software; you can redistribute it and/or
     *     modify it under the terms of the GNU General Public License as
     *     published by the Free Software Foundation; either version 2 of the
     *     License, or (at your option) any later version.
     *
     *     This file is distributed in the hope that it will be useful,
     *     but WITHOUT ANY WARRANTY; without even the implied warranty of
     *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     *     GNU General Public License for more details.
     *
     * Or, alternatively,
     *
     *  b) Permission is hereby granted, free of charge, to any person
     *     obtaining a copy of this software and associated documentation
     *     files (the "Software"), to deal in the Software without
     *     restriction, including without limitation the rights to use,
     *     copy, modify, merge, publish, distribute, sublicense, and/or
     *     sell copies of the Software, and to permit persons to whom the
     *     Software is furnished to do so, subject to the following
     *     conditions:
     *
     *     The above copyright notice and this permission notice shall be
     *     included in all copies or substantial portions of the Software.
     *
     *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
     *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
     *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
     *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     *     OTHER DEALINGS IN THE SOFTWARE.
     */
    
    /dts-v1/;
    #include "stm32f746.dtsi"
    #include "stm32f746-pinctrl.dtsi"
    #include <dt-bindings/input/input.h>
    #include <dt-bindings/gpio/gpio.h>
    
    / {
            model = "STMicroelectronics STM32F746-DISCO board";
            compatible = "st,stm32f746-disco", "st,stm32f746";
    
            chosen {
                    bootargs = "root=/dev/ram";
                    stdout-path = "serial0:115200n8";
            };
    
            memory@c0000000 {
                    device_type = "memory";
                    reg = <0xC0000000 0x800000>;
            };
    
            aliases {
                    serial0 = &usart1;
            };
    
            usbotg_hs_phy: usb-phy {
                    #phy-cells = <0>;
                    compatible = "usb-nop-xceiv";
                    clocks = <&rcc 0 STM32F7_AHB1_CLOCK(OTGHSULPI)>;
                    clock-names = "main_clk";
            };
    
            /* This turns on vbus for otg fs for host mode (dwc2) */
            vcc5v_otg_fs: vcc5v-otg-fs-regulator {
                    compatible = "regulator-fixed";
                    gpio = <&gpiod 5 0>;
                    regulator-name = "vcc5_host1";
                    regulator-always-on;
            };
    
            mmc_vcard: mmc_vcard {
                    compatible = "regulator-fixed";
                    regulator-name = "mmc_vcard";
                    regulator-min-microvolt = <3300000>;
                    regulator-max-microvolt = <3300000>;
            };
    };
    
    &clk_hse {
            clock-frequency = <25000000>;
    };
    
    &i2c1 {
            pinctrl-0 = <&i2c1_pins_b>;
            pinctrl-names = "default";
            i2c-scl-rising-time-ns = <185>;
            i2c-scl-falling-time-ns = <20>;
            status = "okay";
   };
   
   &sdio1 {
           status = "okay";
           vmmc-supply = <&mmc_vcard>;
           cd-gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
           pinctrl-names = "default", "opendrain";
           pinctrl-0 = <&sdio_pins_a>;
           pinctrl-1 = <&sdio_pins_od_a>;
           bus-width = <4>;
   };
   
   &timers5 {
           /* Override timer5 to act as clockevent */
           compatible = "st,stm32-timer";
           interrupts = <50>;
           status = "okay";
           /delete-property/#address-cells;
           /delete-property/#size-cells;
           /delete-property/clock-names;
           /delete-node/pwm;
           /delete-node/timer@4;
   };
   
   &usart1 {
           pinctrl-0 = <&usart1_pins_b>;
           pinctrl-names = "default";
           status = "okay";
   };
   
   &usbotg_fs {
           dr_mode = "host";
           pinctrl-0 = <&usbotg_fs_pins_a>;
           pinctrl-names = "default";
           status = "okay";
   };
   
   &usbotg_hs {
           dr_mode = "host";
           phys = <&usbotg_hs_phy>;
           phy-names = "usb2-phy";
           pinctrl-0 = <&usbotg_hs_pins_b>;
           pinctrl-names = "default";
           status = "okay";
   };

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