| /* |
| * Copyright 2016 - Michael Kurz <michi.kurz@gmail.com> |
| * Copyright 2016 - Vikas MANOCHA <vikas.manocha@st.com> |
| * |
| * Based on: |
| * stm32f469-disco.dts from Linux |
| * Copyright 2016 - Lee Jones <lee.jones@linaro.org> |
| * |
| * 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 <dt-bindings/memory/stm32-sdram.h> |
| |
| / { |
| model = "STMicroelectronics STM32F746-DISCO board"; |
| compatible = "st,stm32f746-disco", "st,stm32f746"; |
| |
| chosen { |
| bootargs = "root=/dev/ram rdinit=/linuxrc"; |
| stdout-path = "serial0:115200n8"; |
| }; |
| |
| memory { |
| reg = <0xC0000000 0x800000>; |
| }; |
| |
| aliases { |
| serial0 = &usart1; |
| spi0 = &qspi; |
| }; |
| }; |
| |
| &clk_hse { |
| clock-frequency = <25000000>; |
| }; |
| |
| &usart1 { |
| pinctrl-0 = <&usart1_pins_a>; |
| pinctrl-names = "default"; |
| status = "okay"; |
| }; |
| |
| &fmc { |
| pinctrl-0 = <&fmc_pins>; |
| pinctrl-names = "default"; |
| status = "okay"; |
| |
| mr-nbanks = <1>; |
| /* sdram memory configuration from sdram datasheet IS42S16400J */ |
| bank1: bank@0 { |
| st,sdram-control = /bits/ 8 <NO_COL_8 NO_ROW_12 MWIDTH_16 BANKS_2 |
| CAS_3 RD_BURST_EN RD_PIPE_DL_0>; |
| st,sdram-timing = /bits/ 8 <TMRD_1 TXSR_60 TRAS_42 TRC_60 TRP_18 |
| TRCD_18>; |
| }; |
| }; |
| |
| &mac { |
| status = "okay"; |
| pinctrl-0 = <ðernet_mii>; |
| phy-mode = "rmii"; |
| phy-handle = <&phy0>; |
| |
| mdio0 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| compatible = "snps,dwmac-mdio"; |
| phy0: ethernet-phy@0 { |
| reg = <0>; |
| }; |
| }; |
| }; |
| |
| &qspi { |
| pinctrl-0 = <&qspi_pins>; |
| status = "okay"; |
| |
| qflash0: n25q128a { |
| #address-cells = <1>; |
| #size-cells = <1>; |
| compatible = "micron,n25q128a13", "spi-flash"; |
| spi-max-frequency = <108000000>; |
| spi-tx-bus-width = <1>; |
| spi-rx-bus-width = <1>; |
| memory-map = <0x90000000 0x1000000>; |
| reg = <0>; |
| }; |
| }; |