boards: Add stm32h747i_disco, C-M7 target

Add C-M7 target for board stm32h747i_disco.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>

boards/arm/stm32h747i_disco/CMakeLists.txt

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: Apache-2.0
+
+if(CONFIG_PINMUX)
+zephyr_library()
+zephyr_library_sources(pinmux.c)
+zephyr_library_include_directories(${PROJECT_SOURCE_DIR}/drivers)
+endif()

boards/arm/stm32h747i_disco/Kconfig.board

@@ -0,0 +1,11 @@
+# Kconfig - STM32H747I Discovery board configuration
+#
+# Copyright (c) 2019 Linaro Limited
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+config BOARD_STM32H747I_DISCO_M7
+	bool "STM32H747I Discovery Development Board"
+	depends on SOC_STM32H747XX
+	select CPU_CORTEX_M7

boards/arm/stm32h747i_disco/Kconfig.defconfig

@@ -0,0 +1,27 @@
+# Kconfig - STM32H747I DISCOVERY board configuration
+#
+# Copyright (c) 2019 Linaro Limited
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+if BOARD_STM32H747I_DISCO_M7
+
+config BOARD
+	default "stm32h747i_disco_m7" if BOARD_STM32H747I_DISCO_M7
+
+if UART_CONSOLE
+
+config UART_1
+	default y
+
+endif # UART_CONSOLE
+
+if SERIAL
+
+config UART_8
+	default y
+
+endif # SERIAL
+
+endif # BOARD_STM32H747I_DISCO_M7

boards/arm/stm32h747i_disco/pinmux.c

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2019 Linaro Limited
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <kernel.h>
+#include <device.h>
+#include <init.h>
+#include <pinmux.h>
+#include <sys_io.h>
+
+#include <pinmux/stm32/pinmux_stm32.h>
+
+/* pin assignments for STM32H747I-DISCO board */
+static const struct pin_config pinconf[] = {
+#ifdef CONFIG_UART_1
+	{STM32_PIN_PA9, STM32H7_PINMUX_FUNC_PA9_USART1_TX},
+	{STM32_PIN_PA10, STM32H7_PINMUX_FUNC_PA10_USART1_RX},
+#endif	/* CONFIG_UART_1 */
+#ifdef CONFIG_UART_8
+	{STM32_PIN_PJ8, STM32H7_PINMUX_FUNC_PJ8_UART8_TX},
+	{STM32_PIN_PJ9, STM32H7_PINMUX_FUNC_PJ9_UART8_RX},
+#endif	/* CONFIG_UART_8 */
+};
+
+static int pinmux_stm32_init(struct device *port)
+{
+	ARG_UNUSED(port);
+
+	stm32_setup_pins(pinconf, ARRAY_SIZE(pinconf));
+
+	return 0;
+}
+
+SYS_INIT(pinmux_stm32_init, PRE_KERNEL_1,
+		CONFIG_PINMUX_STM32_DEVICE_INITIALIZATION_PRIORITY);

boards/arm/stm32h747i_disco/stm32h747i_disco.dtsi

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2019 Linaro Limited
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	leds {
+		compatible = "gpio-leds";
+		green_led_1:led_1 {
+			gpios = <&gpioi 12 GPIO_INT_ACTIVE_HIGH>;
+			label = "User LD1";
+			status = "disabled";
+		};
+		orange_led_2:led_2 {
+			gpios = <&gpioi 13 GPIO_INT_ACTIVE_HIGH>;
+			label = "User LD2";
+			status = "disabled";
+		};
+		red_led_3:led_3 {
+			gpios = <&gpioi 14 GPIO_INT_ACTIVE_HIGH>;
+			label = "User LD3";
+			status = "disabled";
+		};
+		blue_led_4:led_4 {
+			gpios = <&gpioi 15 GPIO_INT_ACTIVE_HIGH>;
+			label = "User LD4";
+			status = "disabled";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		wake_up: button {
+			label = "Wakeup";
+			gpios = <&gpioc 13 GPIO_INT_ACTIVE_HIGH>;
+			status = "disabled";
+		};
+		joy_center: joystick_center {
+			label = "joystick center";
+			gpios = <&gpiok 2 GPIO_INT_ACTIVE_LOW>;
+			status = "disabled";
+		};
+		joy_down: joystick_down {
+			label = "joystick down";
+			gpios = <&gpiok 3 GPIO_INT_ACTIVE_LOW>;
+			status = "disabled";
+		};
+		joy_up: joystick_up {
+			label = "joystick up";
+			gpios = <&gpiok 6 GPIO_INT_ACTIVE_LOW>;
+			status = "disabled";
+		};
+		joy_left: joystick_left {
+			label = "joystick left";
+			gpios = <&gpiok 4 GPIO_INT_ACTIVE_LOW>;
+		};
+		joy_right: joystick_right {
+			label = "joystick right";
+			gpios = <&gpiok 5 GPIO_INT_ACTIVE_LOW>;
+			status = "disabled";
+		};
+	};
+};
+
+arduino_serial: &uart8 {};

boards/arm/stm32h747i_disco/stm32h747i_disco_m7.dts

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2019 Linaro Limited
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <st/h7/stm32h747Xi_m7.dtsi>
+#include "stm32h747i_disco.dtsi"
+
+/ {
+	model = "STMicroelectronics STM32H747I DISCOVERY board";
+	compatible = "st,stm32h747i-disco", "st,stm32h747";
+
+	/* HW resources are split between CM7 and CM4 */
+	chosen {
+		zephyr,console = &usart1;
+		zephyr,shell-uart = &usart1;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+	};
+
+	leds {
+		green_led_1:led_1 {
+			status = "okay";
+		};
+		orange_led_2:led_2 {
+			status = "okay";
+		};
+	};
+
+	gpio_keys {
+		wake_up: button {
+			status = "okay";
+		};
+	};
+
+	aliases {
+		led0 = &green_led_1;
+		led1 = &orange_led_2;
+		sw0 = &wake_up;
+	};
+};
+
+
+&usart1 {
+	current-speed = <115200>;
+	pinctrl-names = "default";
+	status = "ok";
+};
+
+&uart8 {
+	current-speed = <115200>;
+	pinctrl-names = "default";
+	status = "ok";
+};

boards/arm/stm32h747i_disco/stm32h747i_disco_m7.yaml

@@ -0,0 +1,12 @@
+identifier: stm32h747i_disco_m7
+name: STM32H747IDISCOVERY
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+ram: 512
+flash: 1024
+supported:
+  - gpio

boards/arm/stm32h747i_disco/stm32h747i_disco_m7_defconfig

@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_ARM=y
+CONFIG_BOARD_STM32H747I_DISCO_M7=y
+CONFIG_SOC_SERIES_STM32H7X=y
+CONFIG_SOC_STM32H747XX=y
+CONFIG_CORTEX_M_SYSTICK=y
+CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
+
+# enable pinmux
+CONFIG_PINMUX=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+# clock configuration
+CONFIG_CLOCK_CONTROL=y
+
+# Clock configuration for Cube Clock control driver
+CONFIG_CLOCK_STM32_HSE_CLOCK=25000000
+CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
+
+# use HSE (bypass) as PLL input
+CONFIG_CLOCK_STM32_PLL_SRC_HSE=y
+CONFIG_CLOCK_STM32_HSE_BYPASS=y
+
+# produce 400MHz clock at PLL output
+CONFIG_CLOCK_STM32_PLL_M_DIVISOR=5
+CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=160
+CONFIG_CLOCK_STM32_PLL_P_DIVISOR=2
+CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=4
+CONFIG_CLOCK_STM32_PLL_R_DIVISOR=2
+
+CONFIG_CLOCK_STM32_D1CPRE=1
+# HCLK: 200MHz
+CONFIG_CLOCK_STM32_HPRE=2
+# APBX: 100MHz
+CONFIG_CLOCK_STM32_D2PPRE1=2
+CONFIG_CLOCK_STM32_D2PPRE2=2
+CONFIG_CLOCK_STM32_D1PPRE=2
+CONFIG_CLOCK_STM32_D3PPRE=2
+
+# enable uart driver
+CONFIG_SERIAL=y
+
+# console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y