board: arm: Add support for WeAct Mini STM31H7B0

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 <sahaj.sarup@linaro.org>

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
+
+configdefault 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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+.. zephyr:board:: mini_stm32h7b0
+
+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
+
+
+More information about the board can be found on the `Mini_STM32H7B0 website`_.
+
+Hardware
+********
+
+The MiniSTM32H7B0 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 target 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:
+:zephyr_file:`boards/weact/mini_stm32h7b0/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 MiniSTM32H7B0 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 MiniSTM32H7B0
+----------------------------------------
+
+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_stm32h7b0/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
+
+.. _STM32H7B0VB 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

boards/weact/mini_stm32h7b0/mini_stm32h7b0.dts

@@ -0,0 +1,223 @@
+/*
+ * Copyright (c) 2024 Linaro Limited
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <st/h7/stm32h7b0Xb.dtsi>
+#include <st/h7/stm32h7b0vbtx-pinctrl.dtsi>
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+#include <zephyr/dt-bindings/mipi_dbi/mipi_dbi.h>
+
+/ {
+	model = "WeAct Studio MiniSTM32H7B0 Core Board";
+	compatible = "weact,mini-stm32h7b0";
+
+	chosen {
+		zephyr,console = &usb_cdc_acm_uart;
+		zephyr,shell-uart = &usb_cdc_acm_uart;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,display = &st7735r_160x80;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		user_led: led {
+			gpios = <&gpioe 3 GPIO_ACTIVE_HIGH>;
+			label = "User LED";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		user_button: button {
+			label = "User PB";
+			gpios = <&gpioc 13 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
+	mipi_dbi_st7735r_160x80 {
+		compatible = "zephyr,mipi-dbi-spi";
+		spi-dev = <&spi4>;
+		dc-gpios = <&gpioe 13 GPIO_ACTIVE_HIGH>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		st7735r_160x80: st7735r@0 {
+			compatible = "sitronix,st7735r";
+			mipi-max-frequency = <20000000>;
+			mipi-mode = "MIPI_DBI_MODE_SPI_4WIRE";
+			reg = <0>;
+			width = <160>;
+			height = <80>;
+			inversion-on;
+			rgb-is-inverted;
+			x-offset = <1>;
+			y-offset = <26>;
+			pwctr1 = [A2 02 84];
+			pwctr2 = [C5];
+			pwctr3 = [0A 00];
+			pwctr4 = [8A 2A];
+			pwctr5 = [8A EE];
+			invctr = <7>;
+			frmctr1 = [01 2C 2D];
+			frmctr2 = [01 2C 2D];
+			frmctr3 = [01 2C 2D 01 2C 2D];
+			vmctr1 = <14>;
+			gamctrp1 = [02 1C 07 12 37 32 29 2D 29 25 2B 39 00 01 03 10];
+			gamctrn1 = [03 1D 07 06 2E 2C 29 2D 2E 2E 37 3F 00 00 02 10];
+			colmod = <5>;
+			/* Set D3 (RGB) bit to 1. LV_COLOR_16_SWAP is enabled by default */
+			madctl = <120>; /* Set to <184> to rotate the image 180 degrees. */
+			caset = [00 01 00 a0];
+			raset = [00 1a 00 69];
+		};
+	};
+
+	aliases {
+		led0 = &user_led;
+		sw0 = &user_button;
+		watchdog0 = &iwdg;
+		sdhc0 = &sdmmc1;
+	};
+};
+
+&clk_lsi {
+	status = "okay";
+};
+
+&clk_hsi48 {
+	status = "okay";
+};
+
+&clk_hse {
+	clock-frequency = <DT_FREQ_M(25)>;
+	status = "okay";
+};
+
+&pll {
+	div-m = <5>;
+	mul-n = <112>;
+	div-p = <2>;
+	div-q = <2>;
+	div-r = <2>;
+	clocks = <&clk_hse>;
+	status = "okay";
+};
+
+&rcc {
+	clocks = <&pll>;
+	clock-frequency = <DT_FREQ_M(280)>;
+	d1cpre = <1>;
+	hpre = <2>;
+	d1ppre = <1>;
+	d2ppre1 = <1>;
+	d2ppre2 = <1>;
+	d3ppre = <1>;
+};
+
+&sdmmc1 {
+	pinctrl-0 = <&sdmmc1_d0_pc8 &sdmmc1_d1_pc9
+		     &sdmmc1_d2_pc10 &sdmmc1_d3_pc11
+		     &sdmmc1_ck_pc12 &sdmmc1_cmd_pd2>;
+	pinctrl-names = "default";
+	cd-gpios = <&gpiod 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
+	status = "okay";
+};
+
+zephyr_udc0: &usbotg_hs {
+	pinctrl-0 = <&usb_otg_hs_dm_pa11 &usb_otg_hs_dp_pa12>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	usb_cdc_acm_uart: cdc_acm_uart {
+		compatible = "zephyr,cdc-acm-uart";
+	};
+};
+
+
+&octospi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&octospim_p1_clk_pb2 &octospim_p1_ncs_pb6
+		&octospim_p1_io0_pd11 &octospim_p1_io1_pd12
+		&octospim_p1_io2_pe2 &octospim_p1_io3_pd13>;
+	status = "okay";
+
+	w25q64_qspi: ospi-nor-flash@90000000 {
+		compatible = "st,stm32-ospi-nor";
+		reg = <0x90000000 DT_SIZE_M(64)>; /* 64 Mbits */
+		ospi-max-frequency = <40000000>;
+		status = "okay";
+		spi-bus-width = <4>;
+		data-rate = <OSPI_STR_TRANSFER>;
+		writeoc = "PP_1_1_4";
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			slot0_partition: partition@0 {
+				reg = <0x00000000 DT_SIZE_M(64)>;
+			};
+		};
+	};
+};
+
+&spi1 {
+	pinctrl-0 = <&spi1_sck_pb3 &spi1_miso_pb4 &spi1_mosi_pd7>;
+	cs-gpios = <&gpiod 6 GPIO_ACTIVE_LOW>;
+	pinctrl-names = "default";
+	status = "okay";
+	w25q64_spi: spi-nor-flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+		size = <DT_SIZE_M(64)>; /* 64 Mbits */
+		status = "okay";
+		jedec-id = [ef 40 17];
+		has-dpd;
+		t-enter-dpd = <3500>;
+		t-exit-dpd = <3500>;
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			storage_partition: partition@0 {
+				label = "storage";
+				reg = <0x00000000 DT_SIZE_M(64)>;
+			};
+		};
+	};
+};
+
+&gpioe {
+	status = "okay";
+
+	lcd_led {
+		gpio-hog;
+		gpios = <10 GPIO_ACTIVE_LOW>;
+		output-high;
+	};
+};
+
+&spi4 {
+	pinctrl-0 = <&spi4_sck_pe12 &spi4_mosi_pe14>;
+	cs-gpios = <&gpioe 11 GPIO_ACTIVE_LOW>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&rng {
+	status = "okay";
+};
+
+&backup_sram {
+	status = "okay";
+};
+
+&iwdg1 {
+	status = "okay";
+};

boards/weact/mini_stm32h7b0/mini_stm32h7b0.yaml

@@ -0,0 +1,19 @@
+identifier: mini_stm32h7b0
+name: WeAct Studio MiniSTM32H7B0 Core Board
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+ram: 512
+flash: 2048
+supported:
+  - gpio
+  - counter
+  - spi
+  - backup_sram
+  - watchdog
+  - qspi
+  - video
+vendor: weact

boards/weact/mini_stm32h7b0/mini_stm32h7b0_defconfig

@@ -0,0 +1,23 @@
+# Copyright (c) 2024 Linaro Limited
+# SPDX-License-Identifier: Apache-2.0
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# Enable HW stack protection
+CONFIG_HW_STACK_PROTECTION=y
+
+# Enable UART driver
+CONFIG_SERIAL=y
+
+# Enable console
+CONFIG_CONSOLE=y
+
+# Enable GPIO
+CONFIG_GPIO=y
+
+# Logger cannot use itself to log
+CONFIG_USB_CDC_ACM_LOG_LEVEL_OFF=y
+
+# Enable USB
+CONFIG_USB_DEVICE_STACK=y