boards: particle_xenon: Add support Xenon

This patch adds support for the Particle Xenon dev board that
has a nrf52840 mcu.

Signed-off-by: Endre Karlson <endre.karlson@gmail.com>

boards/arm/particle_xenon/Kconfig

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+# Kconfig - Particle Xenon configuration
+#
+# Copyright (c) 2018 Endre Karlson
+#
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_PARTICLE_XENON
+
+config BOARD_ENABLE_DCDC
+	bool "Enable DCDC mode"
+	select SOC_DCDC_NRF52X
+	default y
+
+endif # BOARD_PARTICLE_XENON

boards/arm/particle_xenon/Kconfig.board

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+# Kconfig - Particle Xenon configuration
+#
+# Copyright (c) 2018 Endre Karlson
+#
+# SPDX-License-Identifier: Apache-2.0
+
+config  BOARD_PARTICLE_XENON
+	bool "Particle Xenon Board"
+	depends on SOC_NRF52840_QIAA

boards/arm/particle_xenon/Kconfig.defconfig

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+# Kconfig - Endre Karlson configuration
+#
+# Copyright (c) 2018 Endre Karlson
+#
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_PARTICLE_XENON
+
+config BOARD
+	default "particle_xenon"
+
+config I2C
+	default y
+
+if I2C
+
+config I2C_NRFX
+	default y
+
+if I2C_NRFX
+
+config I2C_0
+	default y
+
+config I2C_1
+	default n
+
+endif #I2C_NRFX
+
+if I2C_0
+
+choice I2C_0_NRF_TYPE
+	default I2C_0_NRF_TWIM
+
+endchoice
+
+endif # I2C_0
+
+if I2C_1
+
+choice I2C_1_NRF_TYPE
+	default I2C_1_NRF_TWIM
+
+endchoice
+
+endif # I2C_1
+
+endif # I2C
+
+if SPI
+
+config SPI_NRFX
+    default y
+
+if SPI_NRFX
+
+config SPI_0
+    default n
+
+config SPI_1
+    default y
+
+config SPI_2
+    default n
+
+endif # SPI_NRFX
+
+endif # SPI
+
+if USB
+
+config USB_NRF52840
+	default y
+
+config USB_DEVICE_STACK
+	default y
+
+endif # USB
+
+if IEEE802154
+
+config IEEE802154_NRF5
+	default y
+
+endif # IEEE802154
+
+endif # BOARD_PARTICLE_XENON

boards/arm/particle_xenon/board.cmake

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2018, Endre Karlson
+#
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(jlink "--device=nrf52" "--speed=4000")
+board_runner_args(nrfjprog "--nrf-family=NRF52")
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/nrfjprog.board.cmake)

boards/arm/particle_xenon/doc/particle_xenon.rst

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+.. _particle_xenon:
+
+particle xenon
+##############
+
+Overview
+********
+
+`particle xenon`_ is a evaluation board based on the Nordic Semiconductor
+nRF52840 SoC. The board was developed by Particle Industries.
+The board has a JTAG connector on it to be programmable.
+
+It is equipped with a onboard LIPO circuit and conforms with the
+Adafruit Feather formfactor.
+
+Zephyr applications use the particle xenon board configuration
+to run on the particle xenon board hardware. It provides
+support for the Nordic Semiconductor nRF52840 ARM |reg| Cortex |reg|-M4F SoC
+with an integrated 2.4 GHz transceiver supporting Bluetooth |reg| Low Energy
+and IEEE |reg| 802.15.4.
+
+The schematic can be found on the `particle xenon website`_.
+
+Hardware
+********
+
+On the front of the board are RGB-LED, LED and LIPO circuitru.
+The RGB-LED is controlled by the nRF52840 via GPIO pins.
+
+.. figure:: img/particle_xenon_block.png
+     :width: 442px
+     :align: center
+     :alt: particle xenon block
+
+     particle xenon block (Credit: PHYTEC)
+
+.. figure:: img/particle_xenon_pinout.png
+     :width: 442px
+     :align: center
+     :alt: particle xenon pin markings
+
+     particle xenon pinout (Credit: Particle Industries)
+
+.. figure:: img/particle_xenon_pin_markings.png
+     :width: 442px
+     :align: center
+     :alt: particle xenon pin markings
+
+     particle xenon pin markings (Credit: Particle Industries)
+
+Power supply
+============
+
+The board is optimized for low power applications and supports two
+power source configurations, battery and micro USB connector.
+
+It contains circuitry for LIPO usage and can be charged via the USB port.
+
+Supported Features
+==================
+
+The particle_xenon board configuration supports the following
+hardware features:
+
++-----------+------------+----------------------+
+| Interface | Controller | Driver/Component     |
++===========+============+======================+
+| NVIC      | on-chip    | nested vectored      |
+|           |            | interrupt controller |
++-----------+------------+----------------------+
+| RTC       | on-chip    | system clock         |
++-----------+------------+----------------------+
+| UART      | on-chip    | serial port          |
++-----------+------------+----------------------+
+| I2C       | on-chip    | i2c                  |
++-----------+------------+----------------------+
+| SPI       | on-chip    | spi                  |
++-----------+------------+----------------------+
+| GPIO      | on-chip    | gpio                 |
++-----------+------------+----------------------+
+| FLASH     | on-chip    | flash                |
++-----------+------------+----------------------+
+| RADIO     | on-chip    | Bluetooth            |
++-----------+------------+----------------------+
+
+Other hardware features are not supported by the Zephyr kernel.
+
+Connections and IOs
+===================
+
+Please see the `particle xenon Website` for the board on github / schematic.
+
+Adapter LEDs
+------------
+
++-------+-----------------------+--------------------------------+
+| Name  | Type                  | Usage                          |
++=======+=======================+================================+
+| P1,14 | green                 | -                              |
++-------+-----------------------+--------------------------------+
+| P1,15 | blue                  | -                              |
++-------+-----------------------+--------------------------------+
+| P1,13 | red                   | -                              |
++-------+-----------------------+--------------------------------+
+
+Programming and Debugging
+*************************
+
+Applications for the ``particle_xenon`` board configuration can be
+built and flashed in the usual way (see :ref:`build_an_application`
+and :ref:`application_run` for more details).
+
+Flashing
+========
+
+Build and flash an application in the usual way, for example:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/basic/blinky
+   :board: particle_xenon
+   :goals: build flash
+
+Debugging
+=========
+
+You can debug an application in the usual way.  Here is an example for the
+:ref:`hello_world` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: particle_xenon
+   :maybe-skip-config:
+   :goals: debug
+
+
+Testing the LEDs and buttons
+****************************
+
+There are 2 samples that allow you to test that the buttons (switches) and
+LEDs on the board are working properly with Zephyr:
+
+* :ref:`blinky-sample`
+* :ref:`button-sample`
+
+You can build and flash the examples to make sure Zephyr is running correctly on
+your board.
+
+.. _particle xenon Website:
+   https://github.com/particle-iot/xenon

boards/arm/particle_xenon/particle_xenon.dts

@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2018 Endre Karlson
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <nordic/nrf52840_qiaa.dtsi>
+
+/ {
+	model = "particle xenon";
+	compatible = "particle,particle_xenon", "nordic,nrf52840-qiaa",
+			 "nordic,nrf52840";
+
+	chosen {
+		zephyr,console = &uart0;
+		zephyr,uart-mcumgr = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		user_led: led_0 {
+			gpios = <&gpio1 12 0>;
+			label = "User LED";
+		};
+		status_green: led_1 {
+				gpios = <&gpio1 14 0>;
+				label = "Green LED";
+		};
+		status_blue: led_2 {
+				gpios = <&gpio1 15 0>;
+				label = "Blue LED";
+		};
+		status_red: led_3 {
+				gpios = <&gpio1 13 0>;
+				label = "Red LED";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		mode_button: button_0 {
+			gpios = <&gpio0 11 GPIO_PUD_PULL_UP>;
+			label = "Mode Button";
+		};
+
+		reset_button: button_1 {
+			gpios = <&gpio0 18 GPIO_PUD_PULL_UP>;
+			label = "Reset Button";
+		};
+	};
+
+	aliases {
+		led0 = &user_led;
+		led1 = &status_green;
+		led2 = &status_blue;
+		led3 = &status_red;
+		sw0 = &mode_button;
+		sw1 = &reset_button;
+	};
+};
+
+&gpiote {
+	status ="ok";
+};
+
+&gpio0 {
+	status ="ok";
+};
+
+&gpio1 {
+	status ="ok";
+};
+
+&uart0 {
+	compatible = "nordic,nrf-uart";
+	current-speed = <115200>;
+	status = "ok";
+	tx-pin = <6>;
+	rx-pin = <8>;
+	rts-pin = <2>;
+	cts-pin = <3>;
+};
+
+&i2c0 {
+	status = "ok";
+	clock-frequency = <I2C_BITRATE_FAST>;
+	sda-pin = <26>;
+	scl-pin = <27>;
+};
+
+&i2c1 {
+	status = "ok";
+	clock-frequency = <I2C_BITRATE_FAST>;
+	sda-pin = <33>;
+	scl-pin = <34>;
+};
+
+&spi0 {
+	status = "ok";
+	sck-pin = <47>;
+	mosi-pin = <45>;
+	miso-pin = <46>;
+	cs-gpios = <&gpio0 31 0>;
+};
+
+&spi1 {
+	status = "ok";
+	sck-pin = <33>;
+	mosi-pin = <34>;
+	miso-pin = <40>;
+};
+
+&adc {
+	status = "ok";
+};
+
+&flash0 {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x000000000 0x0000C000>;
+		};
+		slot0_partition: partition@c000 {
+			label = "image-0";
+			reg = <0x0000C000 0x000069000>;
+		};
+		slot1_partition: partition@75000 {
+			label = "image-1";
+			reg = <0x00075000 0x000069000>;
+		};
+		scratch_partition: partition@de000 {
+			label = "image-scratch";
+			reg = <0x000de000 0x0001e000>;
+		};
+
+		storage_partition: partition@fc000 {
+			label = "storage";
+			reg = <0x000fc000 0x00004000>;
+		};
+	};
+};
+
+&usbd {
+	compatible = "nordic,nrf-usbd";
+	status = "ok";
+};

boards/arm/particle_xenon/particle_xenon.yaml

@@ -0,0 +1,21 @@
+#
+# Copyright (c) 2018, Endre Karlson
+#
+# SPDX-License-Identifier: Apache-2.0
+
+identifier: particle_xenon
+name: particle-xenon
+type: mcu
+arch: arm
+ram: 512
+flash: 1024
+toolchain:
+  - zephyr
+  - gnuarmemb
+supported:
+  - i2c
+  - spi
+  - gpio
+  - usb_device
+  - ble
+  - ieee802154

boards/arm/particle_xenon/particle_xenon_defconfig

@@ -0,0 +1,29 @@
+#
+# Copyright (c) 2018, Endre Karlson
+#
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_ARM=y
+CONFIG_SOC_FAMILY_NRF=y
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_PARTICLE_XENON=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# enable uart driver
+CONFIG_SERIAL=y
+CONFIG_UART_NRFX=y
+CONFIG_UART_0_NRF_UART=y
+
+# enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# additional board options
+CONFIG_GPIO_AS_PINRESET=y
+
+# bluetooth
+CONFIG_BT=y
+CONFIG_BT_CTLR=y