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ARM: DTS: stm32: add stm32f746-disco device tree files 

This patch adds the DTS source files needed for stm32f746-disco board
The files are based on the stm32f429/469 files from current linux
kernel.

Source for "arch/arm/dts/armv7-m.dtsi": Linux: "arch/arm/boot/dts/armv7-m.dtsi"

Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
This commit is contained in:
Michael Kurz 2017-01-22 16:04:23 +01:00 committed by Tom Rini
parent 797c3c13a9
commit b1a8de7e07
6 changed files with 242 additions and 0 deletions
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2
arch/arm/dts/Makefile
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@ -176,6 +176,8 @@ dtb-$(CONFIG_FSL_LSCH2) += fsl-ls1043a-qds-duart.dtb \
dtb-$(CONFIG_ARCH_SNAPDRAGON) += dragonboard410c.dtb dtb-$(CONFIG_ARCH_SNAPDRAGON) += dragonboard410c.dtb
dtb-$(CONFIG_STM32F7) += stm32f746-disco.dtb
dtb-$(CONFIG_MACH_SUN4I) += \ dtb-$(CONFIG_MACH_SUN4I) += \
sun4i-a10-a1000.dtb \ sun4i-a10-a1000.dtb \
sun4i-a10-ba10-tvbox.dtb \ sun4i-a10-ba10-tvbox.dtb \

25
arch/arm/dts/armv7-m.dtsi Normal file
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@ -0,0 +1,25 @@
#include "skeleton.dtsi"
/ {
nvic: interrupt-controller@e000e100 {
compatible = "arm,armv7m-nvic";
interrupt-controller;
#interrupt-cells = <1>;
reg = <0xe000e100 0xc00>;
};
systick: timer@e000e010 {
compatible = "arm,armv7m-systick";
reg = <0xe000e010 0x10>;
status = "disabled";
};
soc {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-bus";
interrupt-parent = <&nvic>;
ranges;
};
};

96
arch/arm/dts/stm32f746-disco.dts Normal file
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@ -0,0 +1,96 @@
/*
* Copyright 2016 - Michael Kurz <michi.kurz@gmail.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"
/ {
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 {
spi0 = &qspi;
};
};
&mac {
status = "okay";
phy-mode = "rmii";
phy-handle = <&phy0>;
mdio0 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,dwmac-mdio";
phy0: ethernet-phy@0 {
reg = <0>;
};
};
};
&qspi {
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>;
};
};

79
arch/arm/dts/stm32f746.dtsi Normal file
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@ -0,0 +1,79 @@
/*
* Copyright 2016 - Michael Kurz <michi.kurz@gmail.com>
*
* Based on:
* stm32f429.dtsi from Linux
* Copyright 2015 - Maxime Coquelin <mcoquelin.stm32@gmail.com>
*
* 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.
*/
#include "armv7-m.dtsi"
#include <dt-bindings/pinctrl/stm32f746-pinfunc.h>
/ {
soc {
mac: ethernet@40028000 {
compatible = "st,stm32-dwmac";
reg = <0x40028000 0x8000>;
reg-names = "stmmaceth";
interrupts = <61>, <62>;
interrupt-names = "macirq", "eth_wake_irq";
snps,pbl = <8>;
snps,mixed-burst;
dma-ranges;
status = "disabled";
};
qspi: quadspi@A0001000 {
compatible = "st,stm32-qspi";
#address-cells = <1>;
#size-cells = <0>;
reg = <0xA0001000 0x1000>, <0x90000000 0x10000000>;
reg-names = "QuadSPI", "QuadSPI-memory";
interrupts = <92>;
spi-max-frequency = <108000000>;
status = "disabled";
};
};
};
&systick {
status = "okay";
};

1
configs/stm32f746-disco_defconfig
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@ -3,6 +3,7 @@ CONFIG_STM32=y
CONFIG_STM32F7=y CONFIG_STM32F7=y
CONFIG_TARGET_STM32F746_DISCO=y CONFIG_TARGET_STM32F746_DISCO=y
# CONFIG_MMC is not set # CONFIG_MMC is not set
CONFIG_DEFAULT_DEVICE_TREE="stm32f746-disco"
CONFIG_BOOTDELAY=3 CONFIG_BOOTDELAY=3
# CONFIG_DISPLAY_CPUINFO is not set # CONFIG_DISPLAY_CPUINFO is not set
# CONFIG_DISPLAY_BOARDINFO is not set # CONFIG_DISPLAY_BOARDINFO is not set

39
doc/device-tree-bindings/spi/spi-stm32-qspi.txt Normal file
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@ -0,0 +1,39 @@
STM32 QSPI controller device tree bindings
--------------------------------------------
Required properties:
- compatible : should be "st,stm32-qspi".
- reg : 1. Physical base address and size of SPI registers map.
2. Physical base address & size of mapped NOR Flash.
- spi-max-frequency : Max supported spi frequency.
- status : enable in requried dts.
Connected flash properties
--------------------------
- spi-max-frequency : Max supported spi frequency.
- spi-tx-bus-width : Bus width (number of lines) for writing (1-4)
- spi-rx-bus-width : Bus width (number of lines) for reading (1-4)
- memory-map : Address and size for memory-mapping the flash
Example:
qspi: quadspi@A0001000 {
compatible = "st,stm32-qspi";
#address-cells = <1>;
#size-cells = <0>;
reg = <0xA0001000 0x1000>, <0x90000000 0x10000000>;
reg-names = "QuadSPI", "QuadSPI-memory";
interrupts = <92>;
spi-max-frequency = <108000000>;
status = "okay";
qflash0: n25q128a {
#address-cells = <1>;
#size-cells = <1>;
compatible = "micron,n25q128a13", "spi-flash";
spi-max-frequency = <108000000>;
spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
memory-map = <0x90000000 0x1000000>;
reg = <0>;
};
};