/* * 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> #include <dt-bindings/gpio/gpio.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; mmc0 = &sdio; /* Aliases for gpios so as to use sequence */ gpio0 = &gpioa; gpio1 = &gpiob; gpio2 = &gpioc; gpio3 = &gpiod; gpio4 = &gpioe; gpio5 = &gpiof; gpio6 = &gpiog; gpio7 = &gpioh; gpio8 = &gpioi; gpio9 = &gpioj; gpio10 = &gpiok; }; led1 { compatible = "st,led1"; led-gpio = <&gpioi 1 0>; }; button1 { compatible = "st,button1"; button-gpio = <&gpioi 11 0>; }; backlight: backlight { compatible = "gpio-backlight"; gpios = <&gpiok 3 0>; status = "okay"; }; panel-rgb@0 { compatible = "simple-panel"; backlight = <&backlight>; enable-gpios = <&gpioi 12 0>; status = "okay"; display-timings { timing@0 { clock-frequency = <9000000>; hactive = <480>; vactive = <272>; hfront-porch = <2>; hback-porch = <2>; hsync-len = <41>; vfront-porch = <2>; vback-porch = <2>; vsync-len = <10>; hsync-active = <0>; vsync-active = <0>; de-active = <0>; pixelclk-active = <1>; }; }; }; }; &clk_hse { clock-frequency = <25000000>; }; &pinctrl { usart1_pins_a: usart1@0 { pins1 { pinmux = <STM32F746_PA9_FUNC_USART1_TX>; bias-disable; drive-push-pull; slew-rate = <2>; }; pins2 { pinmux = <STM32F746_PB7_FUNC_USART1_RX>; bias-disable; }; }; ethernet_mii: mii@0 { pins { pinmux = <STM32F746_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0>, <STM32F746_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1>, <STM32F746_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN>, <STM32F746_PA2_FUNC_ETH_MDIO>, <STM32F746_PC1_FUNC_ETH_MDC>, <STM32F746_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK>, <STM32F746_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV>, <STM32F746_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0>, <STM32F746_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1>; slew-rate = <2>; }; }; qspi_pins: qspi@0 { pins { pinmux = <STM32F746_PB2_FUNC_QUADSPI_CLK>, <STM32F746_PB6_FUNC_QUADSPI_BK1_NCS>, <STM32F746_PD11_FUNC_QUADSPI_BK1_IO0>, <STM32F746_PD12_FUNC_QUADSPI_BK1_IO1>, <STM32F746_PD13_FUNC_QUADSPI_BK1_IO3>, <STM32F746_PE2_FUNC_QUADSPI_BK1_IO2>; slew-rate = <2>; }; }; fmc_pins: fmc@0 { pins { pinmux = <STM32F746_PD10_FUNC_FMC_D15>, <STM32F746_PD9_FUNC_FMC_D14>, <STM32F746_PD8_FUNC_FMC_D13>, <STM32F746_PE15_FUNC_FMC_D12>, <STM32F746_PE14_FUNC_FMC_D11>, <STM32F746_PE13_FUNC_FMC_D10>, <STM32F746_PE12_FUNC_FMC_D9>, <STM32F746_PE11_FUNC_FMC_D8>, <STM32F746_PE10_FUNC_FMC_D7>, <STM32F746_PE9_FUNC_FMC_D6>, <STM32F746_PE8_FUNC_FMC_D5>, <STM32F746_PE7_FUNC_FMC_D4>, <STM32F746_PD1_FUNC_FMC_D3>, <STM32F746_PD0_FUNC_FMC_D2>, <STM32F746_PD15_FUNC_FMC_D1>, <STM32F746_PD14_FUNC_FMC_D0>, <STM32F746_PE1_FUNC_FMC_NBL1>, <STM32F746_PE0_FUNC_FMC_NBL0>, <STM32F746_PG5_FUNC_FMC_A15_FMC_BA1>, <STM32F746_PG4_FUNC_FMC_A14_FMC_BA0>, <STM32F746_PG1_FUNC_FMC_A11>, <STM32F746_PG0_FUNC_FMC_A10>, <STM32F746_PF15_FUNC_FMC_A9>, <STM32F746_PF14_FUNC_FMC_A8>, <STM32F746_PF13_FUNC_FMC_A7>, <STM32F746_PF12_FUNC_FMC_A6>, <STM32F746_PF5_FUNC_FMC_A5>, <STM32F746_PF4_FUNC_FMC_A4>, <STM32F746_PF3_FUNC_FMC_A3>, <STM32F746_PF2_FUNC_FMC_A2>, <STM32F746_PF1_FUNC_FMC_A1>, <STM32F746_PF0_FUNC_FMC_A0>, <STM32F746_PH3_FUNC_FMC_SDNE0>, <STM32F746_PH5_FUNC_FMC_SDNWE>, <STM32F746_PF11_FUNC_FMC_SDNRAS>, <STM32F746_PG15_FUNC_FMC_SDNCAS>, <STM32F746_PC3_FUNC_FMC_SDCKE0>, <STM32F746_PG8_FUNC_FMC_SDCLK>; slew-rate = <2>; }; }; ltdc_pins: ltdc@0 { pins { pinmux = <STM32F746_PE4_FUNC_LCD_B0>, <STM32F746_PG12_FUNC_LCD_B4>, <STM32F746_PI9_FUNC_LCD_VSYNC>, <STM32F746_PI10_FUNC_LCD_HSYNC>, <STM32F746_PI14_FUNC_LCD_CLK>, <STM32F746_PI15_FUNC_LCD_R0>, <STM32F746_PJ0_FUNC_LCD_R1>, <STM32F746_PJ1_FUNC_LCD_R2>, <STM32F746_PJ2_FUNC_LCD_R3>, <STM32F746_PJ3_FUNC_LCD_R4>, <STM32F746_PJ4_FUNC_LCD_R5>, <STM32F746_PJ5_FUNC_LCD_R6>, <STM32F746_PJ6_FUNC_LCD_R7>, <STM32F746_PJ7_FUNC_LCD_G0>, <STM32F746_PJ8_FUNC_LCD_G1>, <STM32F746_PJ9_FUNC_LCD_G2>, <STM32F746_PJ10_FUNC_LCD_G3>, <STM32F746_PJ11_FUNC_LCD_G4>, <STM32F746_PJ13_FUNC_LCD_B1>, <STM32F746_PJ14_FUNC_LCD_B2>, <STM32F746_PJ15_FUNC_LCD_B3>, <STM32F746_PK0_FUNC_LCD_G5>, <STM32F746_PK1_FUNC_LCD_G6>, <STM32F746_PK2_FUNC_LCD_G7>, <STM32F746_PK4_FUNC_LCD_B5>, <STM32F746_PK5_FUNC_LCD_B6>, <STM32F746_PK6_FUNC_LCD_B7>, <STM32F746_PK7_FUNC_LCD_DE>; slew-rate = <2>; }; }; }; &usart1 { pinctrl-0 = <&usart1_pins_a>; pinctrl-names = "default"; status = "okay"; }; &fmc { pinctrl-0 = <&fmc_pins>; pinctrl-names = "default"; status = "okay"; /* Memory configuration from sdram datasheet MT48LC_4M32_B2B5-6A */ bank1: bank@0 { st,sdram-control = /bits/ 8 <NO_COL_8 NO_ROW_12 MWIDTH_16 BANKS_4 CAS_3 SDCLK_2 RD_BURST_EN RD_PIPE_DL_0>; st,sdram-timing = /bits/ 8 <TMRD_2 TXSR_6 TRAS_4 TRC_6 TWR_2 TRP_2 TRCD_2>; /* refcount = (64msec/total_row_sdram)*freq - 20 */ st,sdram-refcount = < 1542 >; }; }; &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", "jedec,spi-nor"; spi-max-frequency = <108000000>; spi-tx-bus-width = <1>; spi-rx-bus-width = <1>; memory-map = <0x90000000 0x1000000>; reg = <0>; }; }; &sdio { status = "okay"; cd-gpios = <&gpioc 13 GPIO_ACTIVE_LOW>; pinctrl-names = "default", "opendrain"; pinctrl-0 = <&sdio_pins>; pinctrl-1 = <&sdio_pins_od>; bus-width = <4>; max-frequency = <25000000>; }; <dc { status = "okay"; pinctrl-0 = <<dc_pins>; };