ARM: DTS: stm32: add stm32f746-disco device tree files
authorMichael Kurz <michi.kurz@gmail.com>
Sun, 22 Jan 2017 15:04:23 +0000 (16:04 +0100)
committerTom Rini <trini@konsulko.com>
Sat, 28 Jan 2017 19:04:42 +0000 (14:04 -0500)
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>
arch/arm/dts/Makefile
arch/arm/dts/armv7-m.dtsi [new file with mode: 0644]
arch/arm/dts/stm32f746-disco.dts [new file with mode: 0644]
arch/arm/dts/stm32f746.dtsi [new file with mode: 0644]
configs/stm32f746-disco_defconfig
doc/device-tree-bindings/spi/spi-stm32-qspi.txt [new file with mode: 0644]

index 9ac58620e28b32aba831a1f232f9574d4ef88da5..796b24d76eb7e983380c2419eff02e6ee00419ce 100644 (file)
@@ -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 (file)
index 0000000..31349da
--- /dev/null
@@ -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 (file)
index 0000000..bad0698
--- /dev/null
@@ -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 (file)
index 0000000..3902e76
--- /dev/null
@@ -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";
+};
index 9e0210e691af4c9c843472abe6994c3097d38e9d..0499f1ed0409b02015b1a77cf9845d5fc23b482b 100644 (file)
@@ -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 (file)
index 0000000..6c7da1d
--- /dev/null
@@ -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>;
+               };
+       };