boards: Add support for Blue Clover PLT Demo V2

Added boards/arm/blueclover_plt_demo_v2_nrf52832.

Signed-off-by: Jeremy Wood <jeremy@bcdevices.com>

boards/arm/blueclover_plt_demo_v2_nrf52832/Kconfig

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+# Blue Clover PLT Demo V2 Configuration
+
+# Copyright (c) 2021 Blue Clover
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_ENABLE_DCDC
+	bool "Enable DCDC mode"
+	select SOC_DCDC_NRF52X
+	default y
+	depends on BOARD_BLUECLOVER_PLT_DEMO_V2_NRF52832

boards/arm/blueclover_plt_demo_v2_nrf52832/Kconfig.board

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+# Blue Clover PLT Demo V2 Configuration
+
+# Copyright (c) 2021 Blue Clover
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_BLUECLOVER_PLT_DEMO_V2_NRF52832
+	bool "Blue Clover PLT Demo Board V2"
+	depends on SOC_NRF52832_QFAA

boards/arm/blueclover_plt_demo_v2_nrf52832/Kconfig.defconfig

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+# Blue Clover PLT Demo V2 Configuration
+
+# Copyright (c) 2021 Blue Clover
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_BLUECLOVER_PLT_DEMO_V2_NRF52832
+
+config BOARD
+	default "blueclover_plt_demo_v2_nrf52832"
+
+config BT_CTLR
+	default BT
+
+endif # BOARD_BLUECLOVER_PLT_DEMO_V2_NRF52832

boards/arm/blueclover_plt_demo_v2_nrf52832/blueclover_plt_demo_v2_nrf52832.dts

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+// SPDX-License-Identifier: Apache-2.0
+
+/*
+ * Copyright (c) 2021 Blue Clover
+ */
+
+/dts-v1/;
+#include <nordic/nrf52832_qfaa.dtsi>
+
+/ {
+	model = "Blue Clover PLT Demo Board V2";
+	compatible = "nordic,blueclover-plt-demo-v2-nrf52832";
+
+	chosen {
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,uart-mcumgr = &uart0;
+		zephyr,bt-mon-uart = &uart0;
+		zephyr,bt-c2h-uart = &uart0;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+	};
+
+	buttons {
+		compatible = "gpio-keys";
+		button0: button_0 {
+			gpios = <&gpio0 26 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 0";
+		};
+		button1: button_1 {
+			gpios = <&gpio0 21 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			label = "Push button switch 1";
+		};
+	};
+
+	/* These aliases are provided for compatibility with samples */
+	aliases {
+		sw0 = &button0;
+		sw1 = &button1;
+		pwm-buzzer = &pwm0;
+	};
+};
+
+&gpiote {
+	status ="okay";
+};
+
+&gpio0 {
+	status ="okay";
+};
+
+&uart0 {
+	status = "okay";
+	compatible = "nordic,nrf-uart";
+	current-speed = <115200>;
+	tx-pin = <6>;
+	rx-pin = <8>;
+};
+
+&i2c0 {
+	compatible = "nordic,nrf-twi";
+	status = "okay";
+	sda-pin = <12>;
+	scl-pin = <14>;
+
+	sht3xd@44 {
+		compatible = "sensirion,sht3xd";
+		reg = <0x44>;
+		label = "SHT3XD";
+	};
+
+	bmi270@68 {
+		compatible = "bosch,bmi270";
+		reg = <0x68>;
+		label = "BMI270";
+	};
+};
+
+&pwm0 {
+	/* buzzer */
+	status = "okay";
+	ch0-pin = <22>;
+	ch0-inverted;
+};
+
+&spi1 {
+	compatible = "nordic,nrf-spi";
+	status = "okay";
+	sck-pin = <2>;
+	mosi-pin = <3>;
+	miso-pin = <27>; /* unused */
+
+	apa102@0 {
+		compatible = "apa,apa102";
+		reg = <0>;
+		spi-max-frequency = <5250000>;
+		label = "APA102";
+	};
+};
+
+&flash0 {
+	/*
+	 * For more information, see:
+	 * http://docs.zephyrproject.org/latest/guides/dts/index.html#flash-partitions
+	 */
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0xc000>;
+		};
+		slot0_partition: partition@c000 {
+			label = "image-0";
+			reg = <0x0000C000 0x32000>;
+		};
+		slot1_partition: partition@3e000 {
+			label = "image-1";
+			reg = <0x0003E000 0x32000>;
+		};
+		scratch_partition: partition@70000 {
+			label = "image-scratch";
+			reg = <0x00070000 0xa000>;
+		};
+		storage_partition: partition@7a000 {
+			label = "storage";
+			reg = <0x0007a000 0x00006000>;
+		};
+	};
+};

boards/arm/blueclover_plt_demo_v2_nrf52832/blueclover_plt_demo_v2_nrf52832.yaml

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+# SPDX-License-Identifier: Apache-2.0
+identifier: blueclover_plt_demo_v2_nrf52832
+name: Blue Clover PLT Demo Board V2
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+ram: 64
+flash: 512
+supported:
+  - ble
+  - counter
+  - nvs
+  - i2c
+  - pwm
+  - spi
+  - watchdog

boards/arm/blueclover_plt_demo_v2_nrf52832/blueclover_plt_demo_v2_nrf52832_defconfig

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+# Kconfig - Blue Clover PLT Demo V2 Configuration
+#
+# Copyright (c) 2021 Blue Clover
+#
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52832_QFAA=y
+CONFIG_BOARD_BLUECLOVER_PLT_DEMO_V2_NRF52832=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# Enable RTT
+CONFIG_USE_SEGGER_RTT=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+# enable uart driver
+CONFIG_SERIAL=y
+
+# enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# additional board options
+CONFIG_GPIO_AS_PINRESET=y

boards/arm/blueclover_plt_demo_v2_nrf52832/board.cmake

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+# SPDX-License-Identifier: Apache-2.0
+
+set(OPENOCD_NRF5_SUBFAMILY "nrf52")
+board_runner_args(nrfjprog "--nrf-family=NRF52")
+board_runner_args(jlink "--device=nrf52" "--speed=4000")
+board_runner_args(pyocd "--target=nrf52" "--frequency=4000000")
+include(${ZEPHYR_BASE}/boards/common/nrfjprog.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/openocd-nrf5.board.cmake)

boards/arm/blueclover_plt_demo_v2_nrf52832/doc/index.rst

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+.. _blueclover_plt_demo_v2_nrf52832:
+
+Blue Clover PLT Demo V2 nRF52832
+################################
+
+Overview
+********
+
+The Blue Clover PLT Demo V2 is an open source (OSWHA certified) hardware
+product, featuring the Nordic Semiconductor nRF52832 ARM Cortex-M4F MCU
+and several useful external peripherals.
+
+The Nordic Semiconductor nRF52832 ARM Cortex-M4F MCU features the following:
+
+* :abbr:`ADC (Analog to Digital Converter)`
+* CLOCK
+* FLASH
+* :abbr:`GPIO (General Purpose Input Output)`
+* :abbr:`I2C (Inter-Integrated Circuit)`
+* :abbr:`MPU (Memory Protection Unit)`
+* :abbr:`NVIC (Nested Vectored Interrupt Controller)`
+* :abbr:`PWM (Pulse Width Modulation)`
+* RADIO (Bluetooth Low Energy)
+* :abbr:`RTC (nRF RTC System Clock)`
+* Segger RTT (RTT Console)
+* :abbr:`SPI (Serial Peripheral Interface)`
+* :abbr:`UART (Universal asynchronous receiver-transmitter)`
+* :abbr:`WDT (Watchdog Timer)`
+
+.. figure:: img/blueclover_plt_demo_v2.png
+     :width: 614px
+     :align: center
+     :alt: Blue Clover PLT Demo V2 nRF52832
+
+Hardware
+********
+
+- nRF52832 ARM Cortex-M4F processor at 64 MHz
+- 512 KB flash memory and 64 KB of SRAM
+- Bosch BMI270 IMU
+- Sensiron SHT30 Humidity and Temperature sensor
+- Murata PKLCS1212E4001R1 Piezo Buzzer
+- Battery connector and charger for 3.7 V lithium polymer batteries
+- 4 APA102C Addressable LEDs
+- Reset button (can be configured as user button)
+- 1 User button
+- Tag-Connect TC2030-FP 6-pin Debug Connector
+
+Supported Features
+==================
+
+The Blue Clover PLT Demo V2 board configuration supports the
+following hardware features:
+
++-----------+------------+----------------------+
+| Interface | Controller | Driver/Component     |
++===========+============+======================+
+| ADC       | on-chip    | adc                  |
++-----------+------------+----------------------+
+| CLOCK     | on-chip    | clock_control        |
++-----------+------------+----------------------+
+| FLASH     | on-chip    | flash                |
++-----------+------------+----------------------+
+| GPIO      | on-chip    | gpio                 |
++-----------+------------+----------------------+
+| I2C(M)    | on-chip    | i2c                  |
++-----------+------------+----------------------+
+| MPU       | on-chip    | arch/arm             |
++-----------+------------+----------------------+
+| NVIC      | on-chip    | arch/arm             |
++-----------+------------+----------------------+
+| PWM       | on-chip    | pwm                  |
++-----------+------------+----------------------+
+| RADIO     | on-chip    | Bluetooth            |
++-----------+------------+----------------------+
+| RTC       | on-chip    | system clock         |
++-----------+------------+----------------------+
+| RTT       | Segger     | console              |
++-----------+------------+----------------------+
+| SPI(M/S)  | on-chip    | spi                  |
++-----------+------------+----------------------+
+| UART      | on-chip    | serial               |
++-----------+------------+----------------------+
+| WDT       | on-chip    | watchdog             |
++-----------+------------+----------------------+
+
+Connections and IOs
+===================
+
+Push buttons
+------------
+
+* RESET = P0.21
+* STATUS = P0.26
+
+UART
+----
+
+* TXD = P0.06
+* RXD = P0.08
+
+Power
+-----
+
+* USB-C Connector
+* JST-PH Battery Connector
+
+NFC
+---
+
+* U.FL Connector, on NFC1/P0.09, NFC2/P0.10
+
+Programming and Debugging
+*************************
+
+Applications for the ``blueclover_plt_demo_v2_nrf52832`` board configuration
+can be built and flashed in the usual way (see :ref:`build_an_application`
+and :ref:`application_run` for more details).
+
+Flashing
+========
+
+Flashing Zephyr onto the ``blueclover_plt_demo_v2_nrf52832`` board requires
+an external programmer. The programmer is attached to the SWD header.
+
+Build the Zephyr kernel and the :ref:`led_apa102_sample` sample application.
+
+   .. zephyr-app-commands::
+      :zephyr-app: samples/drivers/led_apa102
+      :board: blueclover_plt_demo_v2_nrf52832
+      :goals: build
+      :compact:
+
+Flash the image.
+
+   .. zephyr-app-commands::
+      :zephyr-app: samples/drivers/led_apa102
+      :board: blueclover_plt_demo_v2_nrf52832
+      :goals: flash
+      :compact:
+
+References
+**********
+
+.. target-notes::
+
+.. _Blue Clover PLT Demo V2 Product site:
+    https://bcdevices.com/products/plt-demo-board
+
+.. _Blue Clover PLT Demo V2 OSWHA Certification:
+    https://certification.oshwa.org/us002054.html
+
+.. _Schematic, layout, and gerbers:
+    https://github.com/bcdevices/plt-docs/tree/master/PLT-DEMOv2