arch/arm/dts/stm32h743i-disco.dts

   1 // SPDX-License-Identifier: GPL-2.0+ OR X11
   2 /*
   3  * Copyright 2017 - Patrice Chotard <patrice.chotard@st.com>
   4  *
   5  */
   6
   7 /dts-v1/;
   8 #include "stm32h743.dtsi"
   9 #include "stm32h743-pinctrl.dtsi"
  10
  11 / {
  12         model = "STMicroelectronics STM32H743i-Discovery board";
  13         compatible = "st,stm32h743i-disco", "st,stm32h743";
  14
  15         chosen {
  16                 bootargs = "root=/dev/ram";
  17                 stdout-path = "serial0:115200n8";
  18         };
  19
  20         memory {
  21                 device_type = "memory";
  22                 reg = <0xd0000000 0x2000000>;
  23         };
  24
  25         aliases {
  26                 serial0 = &usart2;
  27         };
  28
  29         v3v3: regulator-v3v3 {
  30                 compatible = "regulator-fixed";
  31                 regulator-name = "v3v3";
  32                 regulator-min-microvolt = <3300000>;
  33                 regulator-max-microvolt = <3300000>;
  34                 regulator-always-on;
  35         };
  36 };
  37
  38 &clk_hse {
  39         clock-frequency = <25000000>;
  40 };
  41
  42 &mac {
  43         status = "disabled";
  44         pinctrl-0       = <&ethernet_rmii>;
  45         pinctrl-names   = "default";
  46         phy-mode        = "rmii";
  47         phy-handle      = <&phy0>;
  48
  49         mdio0 {
  50                 #address-cells = <1>;
  51                 #size-cells = <0>;
  52                 compatible = "snps,dwmac-mdio";
  53                 phy0: ethernet-phy@0 {
  54                         reg = <0>;
  55                 };
  56         };
  57 };
  58
  59 &sdmmc1 {
  60         pinctrl-names = "default", "opendrain", "sleep";
  61         pinctrl-0 = <&sdmmc1_b4_pins_a>;
  62         pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
  63         pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
  64         broken-cd;
  65         st,neg-edge;
  66         bus-width = <4>;
  67         vmmc-supply = <&v3v3>;
  68         status = "okay";
  69 };
  70
  71 &usart2 {
  72         pinctrl-0 = <&usart2_pins>;
  73         pinctrl-names = "default";
  74         status = "okay";
  75 };