ARM: dts: stm32: Add STM32H743 MCU and STM32H743i-EVAL board

Add basic support for STM32H743 MCU and his eval board.
The STMicrolectornics's STM32H743 MCU is based on  Cortex-M7 core
running up to @400MHz with 2MB internal flash and 1MB internal RAM.

For more details see:
Documentation/arm/stm32/stm32h743-overview.txt

Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>

1 files changed, 83 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
new file mode 100644
index 000000000000..46856298ee16
--- /dev/null
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -0,0 +1,83 @@
+/*
+ * 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>;
+
+		};
+
+		timer5: timer@40000c00 {
+			compatible = "st,stm32-timer";
+			reg = <0x40000c00 0x400>;
+			interrupts = <50>;
+			clocks = <&timer_clk>;
+		};
+	};
+};
+
+&systick {
+	clock-frequency = <250000000>;
+	status = "okay";
+};