arch/arm/dts/stm32f746-disco.dts

   1 // SPDX-License-Identifier: GPL-2.0+ OR X11
   2 /*
   3  * Copyright 2017 - Vikas MANOCHA <vikas.manocha@st.com>
   4  *
   5  */
   6
   7 /dts-v1/;
   8 #include "stm32f746.dtsi"
   9 #include "stm32f746-pinctrl.dtsi"
  10 #include <dt-bindings/input/input.h>
  11 #include <dt-bindings/gpio/gpio.h>
  12
  13 / {
  14         model = "STMicroelectronics STM32F746-DISCO board";
  15         compatible = "st,stm32f746-disco", "st,stm32f746";
  16
  17         chosen {
  18                 bootargs = "root=/dev/ram";
  19                 stdout-path = "serial0:115200n8";
  20         };
  21
  22         memory@c0000000 {
  23                 device_type = "memory";
  24                 reg = <0xC0000000 0x800000>;
  25         };
  26
  27         aliases {
  28                 serial0 = &usart1;
  29         };
  30
  31         usbotg_hs_phy: usb-phy {
  32                 #phy-cells = <0>;
  33                 compatible = "usb-nop-xceiv";
  34                 clocks = <&rcc 0 STM32F7_AHB1_CLOCK(OTGHSULPI)>;
  35                 clock-names = "main_clk";
  36         };
  37
  38         /* This turns on vbus for otg fs for host mode (dwc2) */
  39         vcc5v_otg_fs: vcc5v-otg-fs-regulator {
  40                 compatible = "regulator-fixed";
  41                 gpio = <&gpiod 5 0>;
  42                 regulator-name = "vcc5_host1";
  43                 regulator-always-on;
  44         };
  45
  46         mmc_vcard: mmc_vcard {
  47                 compatible = "regulator-fixed";
  48                 regulator-name = "mmc_vcard";
  49                 regulator-min-microvolt = <3300000>;
  50                 regulator-max-microvolt = <3300000>;
  51         };
  52 };
  53
  54 &clk_hse {
  55         clock-frequency = <25000000>;
  56 };
  57
  58 &i2c1 {
  59         pinctrl-0 = <&i2c1_pins_b>;
  60         pinctrl-names = "default";
  61         i2c-scl-rising-time-ns = <185>;
  62         i2c-scl-falling-time-ns = <20>;
  63         status = "okay";
  64 };
  65
  66 &sdio1 {
  67         status = "okay";
  68         vmmc-supply = <&mmc_vcard>;
  69         cd-gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
  70         pinctrl-names = "default", "opendrain";
  71         pinctrl-0 = <&sdio_pins_a>;
  72         pinctrl-1 = <&sdio_pins_od_a>;
  73         bus-width = <4>;
  74 };
  75
  76 &usart1 {
  77         pinctrl-0 = <&usart1_pins_b>;
  78         pinctrl-names = "default";
  79         status = "okay";
  80 };
  81
  82 &usbotg_fs {
  83         dr_mode = "host";
  84         pinctrl-0 = <&usbotg_fs_pins_a>;
  85         pinctrl-names = "default";
  86         status = "okay";
  87 };
  88
  89 &usbotg_hs {
  90         dr_mode = "host";
  91         phys = <&usbotg_hs_phy>;
  92         phy-names = "usb2-phy";
  93         pinctrl-0 = <&usbotg_hs_pins_b>;
  94         pinctrl-names = "default";
  95         status = "okay";
  96 };