board: arm: Add support for WeAct Mini STM32H7B0

This board is mostly the same as mini_stm32h743.

Noatable diffrences for dt:
- rcc config
- octospi in quadspi mode
- pinmux naming for USB and quadspi

Signed-off-by: Sahaj Sarup <[email protected]>

boards/weact/mini_stm32h7b0/Kconfig.defconfig

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+# Copyright (c) 2024 Linaro Limited
+# SPDX-License-Identifier: Apache-2.0
+
+# WeAct Studio MiniSTM32H7B0 board configuration
+
+if BOARD_MINI_STM32H7B0
+
+if DISPLAY
+
+config INPUT
+	default y
+
+if LVGL
+
+config LV_COLOR_16_SWAP
+	default y
+
+config LV_Z_BITS_PER_PIXEL
+	default 16
+
+endif # LVGL
+
+endif # DISPLAY
+
+if USB_DEVICE_STACK
+
+config UART_CONSOLE
+	default CONSOLE
+
+config USB_DEVICE_INITIALIZE_AT_BOOT
+	default y
+
+endif # USB_DEVICE_STACK
+
+endif # BOARD_MINI_STM32H7B0

boards/weact/mini_stm32h7b0/Kconfig.mini_stm32h7b0

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+# Copyright (c) 2024 Linaro Limited
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_MINI_STM32H7B0
+	select SOC_STM32H7B0XX

boards/weact/mini_stm32h7b0/board.cmake

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+# Copyright (c) 2024 Linaro Limited
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(dfu-util "--pid=0483:df11" "--alt=0" "--dfuse")
+board_runner_args(jlink "--device=STM32H7B0VB" "--speed=4000")
+
+include(${ZEPHYR_BASE}/boards/common/dfu-util.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/weact/mini_stm32h7b0/board.yml

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+board:
+  name: mini_stm32h7b0
+  full_name: MiniSTM32H7B0 Core Board
+  vendor: weact
+  socs:
+    - name: stm32h7b0xx

boards/weact/mini_stm32h7b0/doc/index.rst

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+.. _mini_stm32h7b0:
+
+WeAct Studio MiniSTM32H7B0 Core Board
+#####################################
+
+Overview
+********
+
+The MiniSTM32H7B0 Core board is a compact development board equipped with
+an STM32H7B0VBT6 microcontroller. It features a variety of peripherals,
+including a user LED and button, a display, and external SPI and QuadSPI
+NOR flash memory.
+
+Key Features
+
+- STM32 microcontroller in LQFP100 package
+- USB OTG or full-speed device
+- 1 user LED
+- User, boot, and reset push-buttons
+- 32.768 kHz and 25MHz HSE crystal oscillators
+- External NOR Flash memories: 64-Mbit Quad-SPI and 64-Mbit SPI
+- Board connectors:
+   - Camera (8 bit) connector
+   - ST7735 TFT-LCD 160 x 80 pixels (RGB565 3-SPI)
+   - microSD |trade| card
+   - USB Type-C Connector
+   - SWD header for external debugger
+   - 2x 40-pin GPIO connector
+
+.. figure:: img/stm32h7xx.webp
+      :align: center
+      :alt: MiniSTM32H7B0 Core Board
+
+      MiniSTM32H7B0 Core Board (Credit: WeAct Studio)
+
+More information about the board can be found on the `Mini_STM32H7B0 website`_.
+
+Hardware
+********
+
+The MiniSTM32H743 Core board provides the following hardware components:
+
+- STM32H7B0VBT6 in LQFP100 package
+- ARM 32-bit Cortex-M7 CPU with FPU
+- Chrom-ART Accelerator
+- Hardware JPEG Codec
+- 280 MHz max CPU frequency
+- VDD from 1.62 V to 3.6 V
+- 128 KB Flash
+- 1.4 MB SRAM
+- High-resolution timer (2.1 ns)
+- 32-bit timers(2)
+- 16-bit timers(10)
+- SPI(5)
+- I2C(4)
+- I2S (4)
+- USART(5)
+- UART(5)
+- USB OTG Full Speed and High Speed(1)
+- CAN FD(2)
+- SAI(4)
+- SPDIF_Rx(4)
+- HDMI_CEC(1)
+- Dual Mode Quad SPI(1)
+- Camera Interface
+- GPIO (up to 80) with external interrupt capability
+- 16-bit ADC(2) with 16 channels
+- 12-bit DAC with 2 channels(2)
+- True Random Number Generator (RNG)
+- 16-channel DMA
+- LCD-TFT Controller with XGA resolution
+
+More information about STM32H7BO can be found here:
+
+- `STM32H7B0VB on www.st.com`_
+- `STM32H7B0VB reference manual`_
+- `STM32H7B0VB datasheet`_
+
+Supported Features
+==================
+
+The mini_stm32h7b0 board configuration supports the following hardware features:
+
++-----------+------------+-------------------------------------+
+| Interface | Controller | Driver/Component                    |
++===========+============+=====================================+
+| NVIC      | on-chip    | nested vector interrupt controller  |
++-----------+------------+-------------------------------------+
+| WDT       | on-chip    | watchdog                            |
++-----------+------------+-------------------------------------+
+| PINMUX    | on-chip    | pinmux                              |
++-----------+------------+-------------------------------------+
+| FLASH     | on-chip    | flash memory                        |
++-----------+------------+-------------------------------------+
+| GPIO      | on-chip    | gpio                                |
++-----------+------------+-------------------------------------+
+| SPI       | on-chip    | spi                                 |
++-----------+------------+-------------------------------------+
+| QSPI NOR  | on-chip    | off-chip flash                      |
++-----------+------------+-------------------------------------+
+| SDMMC     | on-chip    | disk access                         |
++-----------+------------+-------------------------------------+
+| DISPLAY   | on-chip    | display                             |
++-----------+------------+-------------------------------------+
+
+Other hardware features have not been enabled yet for this board.
+
+The default configuration per core can be found in the defconfig file:
+``boards/weact/mini_stm32h743/mini_stm32h7b0_defconfig``
+
+Pin Mapping
+===========
+
+MiniSTM32H7B0 Core board has 5 GPIO controllers. These controllers are responsible for pin muxing,
+input/output, pull-up, etc.
+
+For more details please refer to `Mini_STM32H7B0 website`_.
+
+Default Zephyr Peripheral Mapping:
+----------------------------------
+
+The MiniSTM32H743 Core board is configured as follows
+
+- USER_LED : PE3
+- USER_PB : PC13
+- SPI1 SCK/MISO/MOSI/NSS : PB3/PB4/PD7/PD6 (NOR Flash memory)
+- SPI4 SCK/MOSI/NSS : PE12/PE14/PE11 (LCD)
+- QuadSPI CLK/NCS/IO0/IO1/IO2/IO3 : PB2/PB6/PD11/PD12/PE2/PD13 (NOR Flash memory)
+- SDMMC1 CLK/DCMD/CD/D0/D1/D2/D3 : PC12/PD2/PD4/PC8/PC9/PC10/PC11 (microSD card)
+- USB DM/DP : PA11/PA12 (USB CDC ACM)
+
+System Clock
+============
+
+The STM32H7B0VB System Clock can be driven by an internal or external oscillator,
+as well as by the main PLL clock. By default, the System clock is driven
+by the PLL clock at 280MHz. PLL clock is fed by a 25MHz high speed external clock.
+
+Serial Port (USB CDC ACM)
+=========================
+
+The Zephyr console output is assigned to the USB CDC ACM virtual serial port.
+Virtual COM port interface. Default communication settings are 115200 8N1.
+
+Programming and Debugging
+*************************
+
+The MiniSTM32H7B0 Core board facilitates firmware flashing via the USB DFU
+bootloader. This method simplifies the process of updating images, although
+it doesn't provide debugging capabilities. However, the board provides header
+pins for the Serial Wire Debug (SWD) interface, which can be used to connect
+an external debugger, such as ST-Link.
+
+Flashing
+========
+
+To activate the bootloader, follow these steps:
+
+1. Press and hold the BOOT0 key.
+2. While still holding the BOOT0 key, press and release the RESET key.
+3. Wait for 0.5 seconds, then release the BOOT0 key.
+
+Upon successful execution of these steps, the device will transition into
+bootloader mode and present itself as a USB DFU Mode device. You can program
+the device using the west tool or the STM32CubeProgrammer.
+
+Flashing an application to MiniSTM32H743
+----------------------------------------
+
+Here is an example for the :zephyr:code-sample:`hello_world` application.
+
+First, put the board in bootloader mode as described above. Then build and flash
+the application in the usual way. Just add ``CONFIG_BOOT_DELAY=5000`` to the
+configuration, so that USB CDC ACM is initialized before any text is printed,
+as below:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: mini_stm32h7b0
+   :goals: build flash
+   :gen-args: -DCONFIG_BOOT_DELAY=5000
+
+Run a serial host program to connect with your board:
+
+.. code-block:: console
+
+   $ minicom -D <tty_device> -b 115200
+
+Then, press the RESET button, you should see the following message after few seconds:
+
+.. code-block:: console
+
+   Hello World! mini_stm32h7b0
+
+Replace :code:`<tty_device>` with the port where the board XIAO BLE
+can be found. For example, under Linux, :code:`/dev/ttyACM0`.
+
+Debugging
+---------
+
+This current Zephyr port does not support debugging.
+
+Testing the LEDs in the MiniSTM32H7B0
+*************************************
+
+There is a sample that allows to test that LED on the board are working
+properly with Zephyr:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/basic/blinky
+   :board: mini_stm32h7b0
+   :goals: build flash
+   :gen-args: -DCONFIG_BOOT_DELAY=5000
+
+You can build and flash the examples to make sure Zephyr is running correctly on
+your board. The LED definitions can be found in
+:zephyr_file:`boards/weact/mini_stm32h743/mini_stm32h7b0.dts`.
+
+Testing shell over USB in the MiniSTM32H7B0
+*******************************************
+
+There is a sample that allows to test shell interface over USB CDC ACM interface
+with Zephyr:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/subsys/shell/shell_module
+   :board: mini_stm32h7b0
+   :goals: build flash
+   :gen-args: -DCONFIG_BOOT_DELAY=5000
+
+.. _Mini_STM32H7B0 website:
+   https://github.com/WeActStudio/WeActStudio.MiniSTM32H7B0
+
+.. _STM32H7B0VB on www.st.com:
+   https://www.st.com/en/microcontrollers-microprocessors/stm32h7b0vb.html
+
+.. _STM32H7B0 reference manual:
+   https://www.st.com/resource/en/reference_manual/rm0455-stm32h7a37b3-and-stm32h7b0-value-line-advanced-armbased-32bit-mcus-stmicroelectronics.pdf
+
+.. _STM32H7B0VB datasheet:
+   https://www.st.com/resource/en/datasheet/stm32h7b0vb.pdf