2 * Copyright 2016 - Michael Kurz <michi.kurz@gmail.com>
3 * Copyright 2016 - Vikas MANOCHA <vikas.manocha@st.com>
6 * stm32f469-disco.dts from Linux
7 * Copyright 2016 - Lee Jones <lee.jones@linaro.org>
9 * This file is dual-licensed: you can use it either under the terms
10 * of the GPL or the X11 license, at your option. Note that this dual
11 * licensing only applies to this file, and not this project as a
14 * a) This file is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
19 * This file is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
26 * b) Permission is hereby granted, free of charge, to any person
27 * obtaining a copy of this software and associated documentation
28 * files (the "Software"), to deal in the Software without
29 * restriction, including without limitation the rights to use,
30 * copy, modify, merge, publish, distribute, sublicense, and/or
31 * sell copies of the Software, and to permit persons to whom the
32 * Software is furnished to do so, subject to the following
35 * The above copyright notice and this permission notice shall be
36 * included in all copies or substantial portions of the Software.
38 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
39 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
40 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
41 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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45 * OTHER DEALINGS IN THE SOFTWARE.
49 #include "stm32f746.dtsi"
50 #include <dt-bindings/memory/stm32-sdram.h>
53 model = "STMicroelectronics STM32F746-DISCO board";
54 compatible = "st,stm32f746-disco", "st,stm32f746";
57 bootargs = "root=/dev/ram rdinit=/linuxrc";
58 stdout-path = "serial0:115200n8";
62 reg = <0xC0000000 0x800000>;
68 /* Aliases for gpios so as to use sequence */
83 compatible = "st,led1";
84 led-gpio = <&gpioi 1 0>;
88 compatible = "st,button1";
89 button-gpio = <&gpioi 11 0>;
94 clock-frequency = <25000000>;
98 pinctrl-0 = <&usart1_pins_a>;
99 pinctrl-names = "default";
104 pinctrl-0 = <&fmc_pins>;
105 pinctrl-names = "default";
109 /* Memory configuration from sdram datasheet MT48LC_4M32_B2B5-6A */
111 st,sdram-control = /bits/ 8 <NO_COL_8 NO_ROW_12 MWIDTH_16 BANKS_4
112 CAS_3 SDCLK_2 RD_BURST_EN
114 st,sdram-timing = /bits/ 8 <TMRD_2 TXSR_6 TRAS_4 TRC_6 TWR_2
116 /* refcount = (64msec/total_row_sdram)*freq - 20 */
117 st,sdram-refcount = < 1542 >;
123 pinctrl-0 = <ðernet_mii>;
125 phy-handle = <&phy0>;
128 #address-cells = <1>;
130 compatible = "snps,dwmac-mdio";
131 phy0: ethernet-phy@0 {
138 pinctrl-0 = <&qspi_pins>;
142 #address-cells = <1>;
144 compatible = "micron,n25q128a13", "spi-flash";
145 spi-max-frequency = <108000000>;
146 spi-tx-bus-width = <1>;
147 spi-rx-bus-width = <1>;
148 memory-map = <0x90000000 0x1000000>;