Merge tag 'stm32-dt-for-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into next/dt

STM32 DT updates for v4.12, round 1

Highlights:
----------

 - ADD RTC support on STM32F746 MCU
 - Enable RTC on STM32F746 Eval board
 - Enable clocks on STM32F746 MCU
 - Enable DMA, pwm1 and pwm3 on STM32F429I Eval
 - Add support of STM32H743 MCU and his Eval board
 - Enable USB HS and FS on STM32F469 Disco board

* tag 'stm32-dt-for-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
  dt-bindings: Document the STM32 USB OTG DWC2 core binding
  ARM: dts: stm32: Enable USB HS in FS mode (embedded phy) on stm32f429-disco
  ARM: dts: stm32: Enable USB FS on stm32f469-disco
  ARM: dts: stm32: Add USB FS support for STM32F429 MCU
  ARM: dts: stm32: Add STM32H743 MCU and STM32H743i-EVAL board
  ARM: dts: stm32: Enable pwm1 and pwm3 on stm32f429i-eval
  ARM: dts: stm32: Enable dma by default on stm32f4 adc
  ARM: dts: stm32: enable RTC on stm32746g-eval
  ARM: dts: stm32: Add RTC support for STM32F746 MCU
  ARM: dts: stm32: set HSE_RTC clock frequency to 1 MHz on stm32f746
  dt-bindings: mfd: Add STM32F7 RCC numeric constants into DT include file
  ARM: dts: stm32: Enable clocks for STM32F746 MCU

Signed-off-by: Olof Johansson <olof@lixom.net>

10 files changed, 485 insertions, 28 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 889b8b9c9eb7..496648b9d539 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -776,7 +776,8 @@ dtb-$(CONFIG_ARCH_STM32)+= \
 	stm32f429-disco.dtb \
 	stm32f469-disco.dtb \
 	stm32429i-eval.dtb \
-	stm32746g-eval.dtb
+	stm32746g-eval.dtb \
+	stm32h743i-eval.dtb
 dtb-$(CONFIG_MACH_SUN4I) += \
 	sun4i-a10-a1000.dtb \
 	sun4i-a10-ba10-tvbox.dtb \
diff --git a/arch/arm/boot/dts/stm32429i-eval.dts b/arch/arm/boot/dts/stm32429i-eval.dts
index 3c99466989b1..b6331146aa02 100644
--- a/arch/arm/boot/dts/stm32429i-eval.dts
+++ b/arch/arm/boot/dts/stm32429i-eval.dts
@@ -167,6 +167,34 @@
 	status = "okay";
 };
 
+&timers1 {
+	status = "okay";
+
+	pwm {
+		pinctrl-0 = <&pwm1_pins>;
+		pinctrl-names = "default";
+		status = "okay";
+	};
+
+	timer@0 {
+		status = "okay";
+	};
+};
+
+&timers3 {
+	status = "okay";
+
+	pwm {
+		pinctrl-0 = <&pwm3_pins>;
+		pinctrl-names = "default";
+		status = "okay";
+	};
+
+	timer@2 {
+		status = "okay";
+	};
+};
+
 &usart1 {
 	pinctrl-0 = <&usart1_pins_a>;
 	pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/stm32746g-eval.dts b/arch/arm/boot/dts/stm32746g-eval.dts
index aa03fac1ec55..b5207588bdcb 100644
--- a/arch/arm/boot/dts/stm32746g-eval.dts
+++ b/arch/arm/boot/dts/stm32746g-eval.dts
@@ -89,6 +89,10 @@
 	clock-frequency = <25000000>;
 };
 
+&rtc {
+	status = "okay";
+};
+
 &usart1 {
 	pinctrl-0 = <&usart1_pins_a>;
 	pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index 9222b9f37bc0..191fa50e34eb 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -88,6 +88,14 @@
 			gpios = <&gpioa 0 0>;
 		};
 	};
+
+	/* This turns on vbus for otg for host mode (dwc2) */
+	vcc5v_otg: vcc5v-otg-regulator {
+		compatible = "regulator-fixed";
+		gpio = <&gpioc 4 0>;
+		regulator-name = "vcc5_host1";
+		regulator-always-on;
+	};
 };
 
 &clk_hse {
@@ -105,3 +113,11 @@
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&usbotg_hs {
+	compatible = "st,stm32f4x9-fsotg";
+	dr_mode = "host";
+	pinctrl-0 = <&usbotg_fs_pins_b>;
+	pinctrl-names = "default";
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index ee0da970e8ad..b2a2b5c38caa 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -450,6 +450,8 @@
 				clocks = <&rcc 0 STM32F4_APB2_CLOCK(ADC1)>;
 				interrupt-parent = <&adc>;
 				interrupts = <0>;
+				dmas = <&dma2 0 0 0x400 0x0>;
+				dma-names = "rx";
 				status = "disabled";
 			};
 
@@ -460,6 +462,8 @@
 				clocks = <&rcc 0 STM32F4_APB2_CLOCK(ADC2)>;
 				interrupt-parent = <&adc>;
 				interrupts = <1>;
+				dmas = <&dma2 3 1 0x400 0x0>;
+				dma-names = "rx";
 				status = "disabled";
 			};
 
@@ -470,6 +474,8 @@
 				clocks = <&rcc 0 STM32F4_APB2_CLOCK(ADC3)>;
 				interrupt-parent = <&adc>;
 				interrupts = <2>;
+				dmas = <&dma2 1 2 0x400 0x0>;
+				dma-names = "rx";
 				status = "disabled";
 			};
 		};
@@ -666,6 +672,28 @@
 				};
 			};
 
+			usbotg_fs_pins_a: usbotg_fs@0 {
+				pins {
+					pinmux = <STM32F429_PA10_FUNC_OTG_FS_ID>,
+						 <STM32F429_PA11_FUNC_OTG_FS_DM>,
+						 <STM32F429_PA12_FUNC_OTG_FS_DP>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <2>;
+				};
+			};
+
+			usbotg_fs_pins_b: usbotg_fs@1 {
+				pins {
+					pinmux = <STM32F429_PB12_FUNC_OTG_HS_ID>,
+						 <STM32F429_PB14_FUNC_OTG_HS_DM>,
+						 <STM32F429_PB15_FUNC_OTG_HS_DP>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <2>;
+				};
+			};
+
 			usbotg_hs_pins_a: usbotg_hs@0 {
 				pins {
 					pinmux = <STM32F429_PH4_FUNC_OTG_HS_ULPI_NXT>,
@@ -805,6 +833,15 @@
 			status = "disabled";
 		};
 
+		usbotg_fs: usb@50000000 {
+			compatible = "st,stm32f4x9-fsotg";
+			reg = <0x50000000 0x40000>;
+			interrupts = <67>;
+			clocks = <&rcc 0 39>;
+			clock-names = "otg";
+			status = "disabled";
+		};
+
 		rng: rng@50060800 {
 			compatible = "st,stm32-rng";
 			reg = <0x50060800 0x400>;
diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts
index 0dd56ef574fa..75470c34b92c 100644
--- a/arch/arm/boot/dts/stm32f469-disco.dts
+++ b/arch/arm/boot/dts/stm32f469-disco.dts
@@ -68,6 +68,15 @@
 	soc {
 		dma-ranges = <0xc0000000 0x0 0x10000000>;
 	};
+
+	/* This turns on vbus for otg for host mode (dwc2) */
+	vcc5v_otg: vcc5v-otg-regulator {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpiob 2 0>;
+		regulator-name = "vcc5_host1";
+		regulator-always-on;
+	};
 };
 
 &rcc {
@@ -115,3 +124,10 @@
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&usbotg_fs {
+	dr_mode = "host";
+	pinctrl-0 = <&usbotg_fs_pins_a>;
+	pinctrl-names = "default";
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi
index f321ffe87144..bd8406b02a57 100644
--- a/arch/arm/boot/dts/stm32f746.dtsi
+++ b/arch/arm/boot/dts/stm32f746.dtsi
@@ -43,6 +43,8 @@
 #include "skeleton.dtsi"
 #include "armv7-m.dtsi"
 #include <dt-bindings/pinctrl/stm32f746-pinfunc.h>
+#include <dt-bindings/clock/stm32fx-clock.h>
+#include <dt-bindings/mfd/stm32f7-rcc.h>
 
 / {
 	clocks {
@@ -51,6 +53,24 @@
 			compatible = "fixed-clock";
 			clock-frequency = <0>;
 		};
+
+		clk-lse {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <32768>;
+		};
+
+		clk-lsi {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <32000>;
+		};
+
+		clk_i2s_ckin: clk-i2s-ckin {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <48000000>;
+		};
 	};
 
 	soc {
@@ -58,7 +78,7 @@
 			compatible = "st,stm32-timer";
 			reg = <0x40000000 0x400>;
 			interrupts = <28>;
-			clocks = <&rcc 0 128>;
+			clocks = <&rcc 0 STM32F7_APB1_CLOCK(TIM2)>;
 			status = "disabled";
 		};
 
@@ -66,7 +86,7 @@
 			compatible = "st,stm32-timer";
 			reg = <0x40000400 0x400>;
 			interrupts = <29>;
-			clocks = <&rcc 0 129>;
+			clocks = <&rcc 0 STM32F7_APB1_CLOCK(TIM3)>;
 			status = "disabled";
 		};
 
@@ -74,7 +94,7 @@
 			compatible = "st,stm32-timer";
 			reg = <0x40000800 0x400>;
 			interrupts = <30>;
-			clocks = <&rcc 0 130>;
+			clocks = <&rcc 0 STM32F7_APB1_CLOCK(TIM4)>;
 			status = "disabled";
 		};
 
@@ -82,14 +102,14 @@
 			compatible = "st,stm32-timer";
 			reg = <0x40000c00 0x400>;
 			interrupts = <50>;
-			clocks = <&rcc 0 131>;
+			clocks = <&rcc 0 STM32F7_APB1_CLOCK(TIM5)>;
 		};
 
 		timer6: timer@40001000 {
 			compatible = "st,stm32-timer";
 			reg = <0x40001000 0x400>;
 			interrupts = <54>;
-			clocks = <&rcc 0 132>;
+			clocks = <&rcc 0 STM32F7_APB1_CLOCK(TIM6)>;
 			status = "disabled";
 		};
 
@@ -97,7 +117,21 @@
 			compatible = "st,stm32-timer";
 			reg = <0x40001400 0x400>;
 			interrupts = <55>;
-			clocks = <&rcc 0 133>;
+			clocks = <&rcc 0 STM32F7_APB1_CLOCK(TIM7)>;
+			status = "disabled";
+		};
+
+		rtc: rtc@40002800 {
+			compatible = "st,stm32-rtc";
+			reg = <0x40002800 0x400>;
+			clocks = <&rcc 1 CLK_RTC>;
+			clock-names = "ck_rtc";
+			assigned-clocks = <&rcc 1 CLK_RTC>;
+			assigned-clock-parents = <&rcc 1 CLK_LSE>;
+			interrupt-parent = <&exti>;
+			interrupts = <17 1>;
+			interrupt-names = "alarm";
+			st,syscfg = <&pwrcfg>;
 			status = "disabled";
 		};
 
@@ -105,7 +139,7 @@
 			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
 			reg = <0x40004400 0x400>;
 			interrupts = <38>;
-			clocks =  <&rcc 0 145>;
+			clocks = <&rcc 1 CLK_USART2>;
 			status = "disabled";
 		};
 
@@ -113,7 +147,7 @@
 			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
 			reg = <0x40004800 0x400>;
 			interrupts = <39>;
-			clocks = <&rcc 0 146>;
+			clocks = <&rcc 1 CLK_USART3>;
 			status = "disabled";
 		};
 
@@ -121,7 +155,7 @@
 			compatible = "st,stm32f7-uart";
 			reg = <0x40004c00 0x400>;
 			interrupts = <52>;
-			clocks = <&rcc 0 147>;
+			clocks = <&rcc 1 CLK_UART4>;
 			status = "disabled";
 		};
 
@@ -129,7 +163,7 @@
 			compatible = "st,stm32f7-uart";
 			reg = <0x40005000 0x400>;
 			interrupts = <53>;
-			clocks = <&rcc 0 148>;
+			clocks = <&rcc 1 CLK_UART5>;
 			status = "disabled";
 		};
 
@@ -137,7 +171,7 @@
 			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
 			reg = <0x40007800 0x400>;
 			interrupts = <82>;
-			clocks = <&rcc 0 158>;
+			clocks = <&rcc 1 CLK_UART7>;
 			status = "disabled";
 		};
 
@@ -145,7 +179,7 @@
 			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
 			reg = <0x40007c00 0x400>;
 			interrupts = <83>;
-			clocks = <&rcc 0 159>;
+			clocks = <&rcc 1 CLK_UART8>;
 			status = "disabled";
 		};
 
@@ -153,7 +187,7 @@
 			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
 			reg = <0x40011000 0x400>;
 			interrupts = <37>;
-			clocks = <&rcc 0 164>;
+			clocks = <&rcc 1 CLK_USART1>;
 			status = "disabled";
 		};
 
@@ -161,7 +195,7 @@
 			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
 			reg = <0x40011400 0x400>;
 			interrupts = <71>;
-			clocks = <&rcc 0 165>;
+			clocks = <&rcc 1 CLK_USART6>;
 			status = "disabled";
 		};
 
@@ -178,6 +212,11 @@
 			interrupts = <1>, <2>, <3>, <6>, <7>, <8>, <9>, <10>, <23>, <40>, <41>, <42>, <62>, <76>;
 		};
 
+		pwrcfg: power-config@40007000 {
+			compatible = "syscon";
+			reg = <0x40007000 0x400>;
+		};
+
 		pin-controller {
 			#address-cells = <1>;
 			#size-cells = <1>;
@@ -191,7 +230,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x0 0x400>;
-				clocks = <&rcc 0 256>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOA)>;
 				st,bank-name = "GPIOA";
 			};
 
@@ -199,7 +238,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x400 0x400>;
-				clocks = <&rcc 0 257>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOB)>;
 				st,bank-name = "GPIOB";
 			};
 
@@ -207,7 +246,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x800 0x400>;
-				clocks = <&rcc 0 258>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOC)>;
 				st,bank-name = "GPIOC";
 			};
 
@@ -215,7 +254,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0xc00 0x400>;
-				clocks = <&rcc 0 259>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOD)>;
 				st,bank-name = "GPIOD";
 			};
 
@@ -223,7 +262,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x1000 0x400>;
-				clocks = <&rcc 0 260>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOE)>;
 				st,bank-name = "GPIOE";
 			};
 
@@ -231,7 +270,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x1400 0x400>;
-				clocks = <&rcc 0 261>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOF)>;
 				st,bank-name = "GPIOF";
 			};
 
@@ -239,7 +278,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x1800 0x400>;
-				clocks = <&rcc 0 262>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOG)>;
 				st,bank-name = "GPIOG";
 			};
 
@@ -247,7 +286,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x1c00 0x400>;
-				clocks = <&rcc 0 263>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOH)>;
 				st,bank-name = "GPIOH";
 			};
 
@@ -255,7 +294,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x2000 0x400>;
-				clocks = <&rcc 0 264>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOI)>;
 				st,bank-name = "GPIOI";
 			};
 
@@ -263,7 +302,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x2400 0x400>;
-				clocks = <&rcc 0 265>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOJ)>;
 				st,bank-name = "GPIOJ";
 			};
 
@@ -271,7 +310,7 @@
 				gpio-controller;
 				#gpio-cells = <2>;
 				reg = <0x2800 0x400>;
-				clocks = <&rcc 0 266>;
+				clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOK)>;
 				st,bank-name = "GPIOK";
 			};
 
@@ -291,9 +330,12 @@
 
 		rcc: rcc@40023800 {
 			#clock-cells = <2>;
-			compatible = "st,stm32f42xx-rcc", "st,stm32-rcc";
+			compatible = "st,stm32f746-rcc", "st,stm32-rcc";
 			reg = <0x40023800 0x400>;
-			clocks = <&clk_hse>;
+			clocks = <&clk_hse>, <&clk_i2s_ckin>;
+			st,syscfg = <&pwrcfg>;
+			assigned-clocks = <&rcc 1 CLK_HSE_RTC>;
+			assigned-clock-rates = <1000000>;
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
new file mode 100644
index 000000000000..fcc1e0640233
--- /dev/null
+++ b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
@@ -0,0 +1,156 @@
+/*
+ * 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;
+				};
+			};
+		};
+	};
+};
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";
+};
diff --git a/arch/arm/boot/dts/stm32h743i-eval.dts b/arch/arm/boot/dts/stm32h743i-eval.dts
new file mode 100644
index 000000000000..c6effbb36e4a
--- /dev/null
+++ b/arch/arm/boot/dts/stm32h743i-eval.dts
@@ -0,0 +1,74 @@
+/*
+ * 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.
+ */
+
+/dts-v1/;
+#include "stm32h743.dtsi"
+#include "stm32h743-pinctrl.dtsi"
+
+/ {
+	model = "STMicroelectronics STM32H743i-EVAL board";
+	compatible = "st,stm32h743i-eval", "st,stm32h743";
+
+	chosen {
+		bootargs = "root=/dev/ram";
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory {
+		reg = <0xd0000000 0x2000000>;
+	};
+
+	aliases {
+		serial0 = &usart1;
+	};
+};
+
+&clk_hse {
+	clock-frequency = <125000000>;
+};
+
+&usart1 {
+	pinctrl-0 = <&usart1_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+