ARM: DTS: stm32: add stm32h743i-disco files

All these files are imported from linux kernel v4.13

Add device tree support for STM32H743 SoC and discovery
board. This board offers :
  _ STM32H743XIH6 microcontroller with 2 Mbytes of
    Flash memory and 1 Mbyte of RAM in TFBGA240+25 package
  _ 5.7” 640x480 TFT color LCD with touch screen
  _ Ethernet compliant with IEEE-802.3-2002
  _ USB OTG HS
  _ I2 C compatible serial interface
  _ ST-MEMS digital microphones
  _ 8-Gbyte (or more) SDIO3.0 interface microSD™ card
  _ 8Mx32bit SDRAM
  _ 1-Gbit Twin Quad-SPI NOR Flash
  _ Reset, wakeup, or key buttons
  _ Joystick with 4-direction control and selector
  _ Board connectors :
	1 USB with Micro-AB
	Ethernet RJ45
	Stereo headset jack including analog microphone input
	microSD™ card
	RCA connector
	JTAG/SWD and ETM trace
   _ Expansion connectors:
	Arduino Uno compatible Connectors
	2 x PIO connectors (PMOD and PMOD+)
   _ On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration
     capability: mass storage, virtual COM port and debug port

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/Makefile

@@ -206,6 +206,7 @@ dtb-$(CONFIG_ARCH_SNAPDRAGON) += dragonboard410c.dtb
 
 dtb-$(CONFIG_STM32F7) += stm32f746-disco.dtb \
 	stm32f769-disco.dtb
+dtb-$(CONFIG_STM32H7) += stm32h743i-disco.dtb
 
 dtb-$(CONFIG_MACH_SUN4I) += \
 	sun4i-a10-a1000.dtb \

arch/arm/dts/stm32h743-pinctrl.dtsi

@@ -0,0 +1,169 @@
+/*
+ * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.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 <dt-bindings/pinctrl/stm32h7-pinfunc.h>
+
+/ {
+	soc {
+		pin-controller {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "st,stm32h743-pinctrl";
+			ranges = <0 0x58020000 0x3000>;
+			pins-are-numbered;
+
+			gpioa: gpio@58020000 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x0 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOA";
+			};
+
+			gpiob: gpio@58020400 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x400 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOB";
+			};
+
+			gpioc: gpio@58020800 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x800 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOC";
+			};
+
+			gpiod: gpio@58020c00 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0xc00 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOD";
+			};
+
+			gpioe: gpio@58021000 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x1000 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOE";
+			};
+
+			gpiof: gpio@58021400 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x1400 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOF";
+			};
+
+			gpiog: gpio@58021800 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x1800 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOG";
+			};
+
+			gpioh: gpio@58021c00 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x1c00 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOH";
+			};
+
+			gpioi: gpio@58022000 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x2000 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOI";
+			};
+
+			gpioj: gpio@58022400 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x2400 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOJ";
+			};
+
+			gpiok: gpio@58022800 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				reg = <0x2800 0x400>;
+				clocks = <&timer_clk>;
+				st,bank-name = "GPIOK";
+			};
+
+			usart1_pins: usart1@0 {
+				pins1 {
+					pinmux = <STM32H7_PB14_FUNC_USART1_TX>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <0>;
+				};
+				pins2 {
+					pinmux = <STM32H7_PB15_FUNC_USART1_RX>;
+					bias-disable;
+				};
+			};
+
+			usart2_pins: usart2@0 {
+				pins1 {
+					pinmux = <STM32H7_PD5_FUNC_USART2_TX>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <0>;
+				};
+				pins2 {
+					pinmux = <STM32H7_PD6_FUNC_USART2_RX>;
+					bias-disable;
+				};
+			};
+		};
+	};
+};

arch/arm/dts/stm32h743.dtsi

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.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 "skeleton.dtsi"
+#include "armv7-m.dtsi"
+
+/ {
+	clocks {
+		clk_hse: clk-hse {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <0>;
+		};
+
+		timer_clk: timer-clk {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <125000000>;
+		};
+	};
+
+	soc {
+		usart1: serial@40011000 {
+			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			reg = <0x40011000 0x400>;
+			interrupts = <37>;
+			status = "disabled";
+			clocks = <&timer_clk>;
+
+		};
+
+		usart2: serial@40004400 {
+			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			reg = <0x40004400 0x400>;
+			interrupts = <38>;
+			status = "disabled";
+			clocks = <&timer_clk>;
+		};
+
+		timer5: timer@40000c00 {
+			compatible = "st,stm32-timer";
+			reg = <0x40000c00 0x400>;
+			interrupts = <50>;
+			clocks = <&timer_clk>;
+		};
+	};
+};
+
+&systick {
+	clock-frequency = <250000000>;
+	status = "okay";
+};

arch/arm/dts/stm32h743i-disco.dts

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2017 - Patrice Chotard <patrice.chotard@st.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.
+ */
+
+/dts-v1/;
+#include "stm32h743.dtsi"
+#include "stm32h743-pinctrl.dtsi"
+
+/ {
+	model = "STMicroelectronics STM32H743i-Discovery board";
+	compatible = "st,stm32h743i-disco", "st,stm32h743";
+
+	chosen {
+		bootargs = "root=/dev/ram";
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory {
+		reg = <0xd0000000 0x2000000>;
+	};
+
+	aliases {
+		serial0 = &usart2;
+	};
+};
+
+&clk_hse {
+	clock-frequency = <125000000>;
+};
+
+&usart2 {
+	pinctrl-0 = <&usart2_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};