1/*
  2 * Copyright 2017 - Patrice Chotard <patrice.chotard@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 "stm32h7-pinctrl.dtsi"
 46
 47/ {
 48	model = "STMicroelectronics STM32H743i-Discovery board";
 49	compatible = "st,stm32h743i-disco", "st,stm32h743";
 50
 51	chosen {
 52		bootargs = "root=/dev/ram";
 53		stdout-path = "serial0:115200n8";
 54	};
 55
 56	memory@d0000000 {
 57		device_type = "memory";
 58		reg = <0xd0000000 0x2000000>;
 59	};
 60
 61	aliases {
 62		serial0 = &usart2;
 63	};
 64
 65	v3v3: regulator-v3v3 {
 66		compatible = "regulator-fixed";
 67		regulator-name = "v3v3";
 68		regulator-min-microvolt = <3300000>;
 69		regulator-max-microvolt = <3300000>;
 70		regulator-always-on;
 71	};
 72};
 73
 74&clk_hse {
 75	clock-frequency = <25000000>;
 76};
 77
 78&mac {
 79	status = "disabled";
 80	pinctrl-0 = <&ethernet_rmii>;
 81	pinctrl-names = "default";
 82	phy-mode = "rmii";
 83	phy-handle = <&phy0>;
 84
 85	mdio0 {
 86		#address-cells = <1>;
 87		#size-cells = <0>;
 88		compatible = "snps,dwmac-mdio";
 89		phy0: ethernet-phy@0 {
 90			reg = <0>;
 91		};
 92	};
 93};
 94
 95&sdmmc1 {
 96	pinctrl-names = "default", "opendrain", "sleep";
 97	pinctrl-0 = <&sdmmc1_b4_pins_a>;
 98	pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
 99	pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
100	broken-cd;
101	st,neg-edge;
102	bus-width = <4>;
103	vmmc-supply = <&v3v3>;
104	status = "okay";
105};
106
107&usart2 {
108	pinctrl-0 = <&usart2_pins>;
109	pinctrl-names = "default";
110	status = "okay";
111};