boards: add support for stm32f7508-dk

boards/stm32f746g-disco/Makefile.features

@@ -1,17 +1,4 @@
 CPU = stm32
 CPU_MODEL = stm32f746ng
 
-# Put defined MCU peripherals here (in alphabetical order)
-FEATURES_PROVIDED += periph_dma
-FEATURES_PROVIDED += periph_eth
-FEATURES_PROVIDED += periph_i2c
-FEATURES_PROVIDED += periph_ltdc
-FEATURES_PROVIDED += periph_rtc
-FEATURES_PROVIDED += periph_rtt
-FEATURES_PROVIDED += periph_spi
-FEATURES_PROVIDED += periph_timer
-FEATURES_PROVIDED += periph_uart
-FEATURES_PROVIDED += periph_usbdev
-
-# stm32f746g-disco provides a custom default Kconfig clock configuration
-KCONFIG_BOARD_CONFIG += $(RIOTBOARD)/stm32f746g-disco/clock.config
+include $(RIOTBOARD)/stm32f746g-disco/features-shared.mk

boards/stm32f746g-disco/features-shared.mk

@@ -0,0 +1,14 @@
+# Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_dma
+FEATURES_PROVIDED += periph_eth
+FEATURES_PROVIDED += periph_i2c
+FEATURES_PROVIDED += periph_ltdc
+FEATURES_PROVIDED += periph_rtc
+FEATURES_PROVIDED += periph_rtt
+FEATURES_PROVIDED += periph_spi
+FEATURES_PROVIDED += periph_timer
+FEATURES_PROVIDED += periph_uart
+FEATURES_PROVIDED += periph_usbdev
+
+# stm32f746g-disco provides a custom default Kconfig clock configuration
+KCONFIG_BOARD_CONFIG += $(RIOTBOARD)/stm32f746g-disco/clock.config

boards/stm32f7508-dk/Kconfig

@@ -0,0 +1,34 @@
+# Copyright (c) 2022 Inria
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+
+config BOARD
+    default "stm32f7508-dk" if BOARD_STM32F7508_DK
+
+config BOARD_STM32F7508_DK
+    bool
+    default y
+    select CPU_MODEL_STM32F750N8
+
+    # Put defined MCU peripherals here (in alphabetical order)
+    select HAS_PERIPH_DMA
+    select HAS_PERIPH_ETH
+    select HAS_PERIPH_I2C
+    select HAS_PERIPH_LTDC
+    select HAS_PERIPH_RTC
+    select HAS_PERIPH_RTT
+    select HAS_PERIPH_SPI
+    select HAS_PERIPH_TIMER
+    select HAS_PERIPH_UART
+    select HAS_PERIPH_USBDEV
+
+    # Clock configuration
+    select BOARD_HAS_HSE
+    select BOARD_HAS_LSE
+
+    select HAVE_SAUL_GPIO
+    select HAVE_FT5X06
+
+source "$(RIOTBOARD)/common/stm32/Kconfig"

boards/stm32f7508-dk/Makefile

@@ -0,0 +1,5 @@
+MODULE = board
+
+DIRS = $(RIOTBOARD)/stm32f746g-disco
+
+include $(RIOTBASE)/Makefile.base

boards/stm32f7508-dk/Makefile.dep

@@ -0,0 +1 @@
+include $(RIOTBOARD)/stm32f746g-disco/Makefile.dep

boards/stm32f7508-dk/Makefile.features

@@ -0,0 +1,4 @@
+CPU = stm32
+CPU_MODEL = stm32f750n8
+
+include $(RIOTBOARD)/stm32f746g-disco/features-shared.mk

boards/stm32f7508-dk/Makefile.include

@@ -0,0 +1,3 @@
+INCLUDES  += -I$(RIOTBOARD)/stm32f746g-disco/include
+
+include $(RIOTBOARD)/stm32f746g-disco/Makefile.include

boards/stm32f7508-dk/doc.txt

@@ -0,0 +1,60 @@
+/**
+ * @defgroup    boards_stm32f750n8-dk STM32F750N8-DK
+ * @ingroup     boards
+ * @brief       Support for the STM32F750N8-DK board.
+
+## Overview
+
+The ST [STM32F750N8-DK](https://www.st.com/en/evaluation-tools/stm32f7508-dk.html)
+is an evaluation board supporting a ARM Cortex-M7 STM32750N8 microcontroller
+with 340KB of RAM and 64KB of ROM Flash. This board is just a clone of the
+STM32F746G-DISCO board with a different microcontroller. The pinout
+is identical.
+
+As a result, the main features available on this board are shared with the ones
+provided by the STM32F746G-DISCO:
+- a 4"3 RGB 480×272 color LCD-TFT with capacitive touch screen,
+- an ethernet port
+- 2 user USB ports (FS and HS)
+- 2 user digital microphones
+- 128M-bit external Quas-SPI flash
+- 128M-bit external SDRAM
+
+Current hardware support:
+
+| Feature        | Support     |  Configuration     |
+| ------------- | :---------------------: | --------------------- |
+| UART |  X  | USART1 on PB7/PA9 (stdio) and USART6 on PC6/PC7    |
+| SPI |  X  | SPI2 on PB15/PB14/PI1    |
+| I2C |  X | I2C1 on PB8/PB9    |
+| Ethernet | X |  |
+| USB OTG FS | X |  |
+| USB OTG HS | - |  |
+| TFT LCD | X |  |
+| Capacitive touch screen | X | |
+| User microphones | - | |
+| External Quad-SPI Flash | - | |
+| External SDRAM | - | |
+
+## Flashing the device
+
+The STM32F750N8-DK board includes an on-board ST-LINK programmer and can be
+flashed using OpenOCD.
+The board can be flashed with:
+
+```
+make BOARD=stm32f750n8-dk flash
+```
+
+and debug via GDB with
+```
+make BOARD=stm32f750n8-dk debug
+```
+
+## Supported Toolchains
+
+For using the STM32F750N8-DK board we recommend the usage of the
+[GNU Tools for ARM Embedded Processors](https://launchpad.net/gcc-arm-embedded)
+toolchain.
+
+ */