diff options
| -rw-r--r-- | arch/arm/dts/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/dts/armv7-m.dtsi | 25 | ||||
| -rw-r--r-- | arch/arm/dts/stm32f746-disco.dts | 96 | ||||
| -rw-r--r-- | arch/arm/dts/stm32f746.dtsi | 79 | ||||
| -rw-r--r-- | configs/stm32f746-disco_defconfig | 1 | ||||
| -rw-r--r-- | doc/device-tree-bindings/spi/spi-stm32-qspi.txt | 39 |
6 files changed, 242 insertions, 0 deletions
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 9ac5862..796b24d 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -176,6 +176,8 @@ dtb-$(CONFIG_FSL_LSCH2) += fsl-ls1043a-qds-duart.dtb \ dtb-$(CONFIG_ARCH_SNAPDRAGON) += dragonboard410c.dtb +dtb-$(CONFIG_STM32F7) += stm32f746-disco.dtb + dtb-$(CONFIG_MACH_SUN4I) += \ sun4i-a10-a1000.dtb \ sun4i-a10-ba10-tvbox.dtb \ diff --git a/arch/arm/dts/armv7-m.dtsi b/arch/arm/dts/armv7-m.dtsi new file mode 100644 index 0000000..31349da --- /dev/null +++ b/arch/arm/dts/armv7-m.dtsi @@ -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; + }; +}; + diff --git a/arch/arm/dts/stm32f746-disco.dts b/arch/arm/dts/stm32f746-disco.dts new file mode 100644 index 0000000..bad0698 --- /dev/null +++ b/arch/arm/dts/stm32f746-disco.dts @@ -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>; + }; +}; diff --git a/arch/arm/dts/stm32f746.dtsi b/arch/arm/dts/stm32f746.dtsi new file mode 100644 index 0000000..3902e76 --- /dev/null +++ b/arch/arm/dts/stm32f746.dtsi @@ -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"; +}; diff --git a/configs/stm32f746-disco_defconfig b/configs/stm32f746-disco_defconfig index 9e0210e..0499f1e 100644 --- a/configs/stm32f746-disco_defconfig +++ b/configs/stm32f746-disco_defconfig @@ -3,6 +3,7 @@ CONFIG_STM32=y CONFIG_STM32F7=y CONFIG_TARGET_STM32F746_DISCO=y # CONFIG_MMC is not set +CONFIG_DEFAULT_DEVICE_TREE="stm32f746-disco" CONFIG_BOOTDELAY=3 # CONFIG_DISPLAY_CPUINFO is not set # CONFIG_DISPLAY_BOARDINFO is not set diff --git a/doc/device-tree-bindings/spi/spi-stm32-qspi.txt b/doc/device-tree-bindings/spi/spi-stm32-qspi.txt new file mode 100644 index 0000000..6c7da1d --- /dev/null +++ b/doc/device-tree-bindings/spi/spi-stm32-qspi.txt @@ -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>; + }; + }; |