boards: arm: Add support for the VBLUno51 board

+ VBLUno51 board
    nRF51822
    Bluetooth Low Energy
    DAPLink interface
    UNO pinout
    4 power

+ Wiki: https://vngiotlab.github.io/vbluno/

+ The following samples were tested:
    hello_world
    basic/button
    basic/blinky
    bluetooth/peripheral_hr
    bluetooth/beacon

Signed-off-by: Nam Do <robotden@gmail.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>

boards/arm/nrf51_vbluno51/Kconfig.board

@@ -0,0 +1,9 @@
+# Kconfig - nRF51-VBLUNO51 board configuration
+#
+# Copyright (c) 2017 VNG IoT Lab Limited.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_NRF51_VBLUNO51
+	bool "nRF51 VBLUno51 BLE"
+	depends on SOC_NRF51822_QFAC

boards/arm/nrf51_vbluno51/Kconfig.defconfig

@@ -0,0 +1,62 @@
+# Kconfig - nRF51 VBLUno51 board configuration
+#
+# Copyright (c) 2017 VNG IoT Lab Limited.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_NRF51_VBLUNO51
+
+config BOARD
+	default nrf51_vbluno51
+
+if GPIO_NRF5
+
+config GPIO_NRF5_P0
+	default y
+
+endif # GPIO_NRF5
+
+if UART_NRF5
+
+config UART_NRF5_GPIO_TX_PIN
+	default 10
+
+config UART_NRF5_GPIO_RX_PIN
+	default 11
+
+config UART_NRF5_GPIO_RTS_PIN
+	default 12
+
+config UART_NRF5_GPIO_CTS_PIN
+	default 13
+
+endif # UART_NRF5
+
+if I2C
+
+config I2C_NRF5
+	def_bool y
+
+config I2C_0
+	default y
+
+config I2C_0_IRQ_PRI
+	default 1
+
+endif # I2C
+
+if I2C_NRF5
+
+config I2C_NRF5_GPIO_SCL_PIN
+	default 30
+
+config I2C_NRF5_GPIO_SCA_PIN
+	default 29
+
+config I2C_0_DEFAULT_CFG
+	# Standard speed, master
+	default 0x11
+
+endif # I2C_NRF5
+
+endif # BOARD_NRF51_VBLUNO51

boards/arm/nrf51_vbluno51/Makefile

@@ -0,0 +1,2 @@
+# No C files (yet)
+obj- += dummy.o

boards/arm/nrf51_vbluno51/Makefile.board

@@ -0,0 +1,6 @@
+FLASH_SCRIPT = pyocd.sh
+DEBUG_SCRIPT = pyocd.sh
+
+PYOCD_TARGET = nrf51
+
+export FLASH_SCRIPT DEBUG_SCRIPT PYOCD_TARGET

boards/arm/nrf51_vbluno51/board.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2017 VNG IoT Lab Limited.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __INC_BOARD_H
+#define __INC_BOARD_H
+
+#include <soc.h>
+
+/* Button*/
+#define BUT_GPIO_PIN	15
+#define BUT_GPIO_NAME	CONFIG_GPIO_NRF5_P0_DEV_NAME
+#define SW0_GPIO_PIN	BUT_GPIO_PIN
+#define SW0_GPIO_NAME	BUT_GPIO_NAME
+
+/* Onboard GREEN LED 0 */
+#define LED0_GPIO_PIN   7
+#define LED0_GPIO_PORT  CONFIG_GPIO_NRF5_P0_DEV_NAME
+
+#define LED_GPIO_PIN    LED0_GPIO_PIN
+#define LED_GPIO_PORT   LED0_GPIO_PORT
+
+#endif /* __INC_BOARD_H */

boards/arm/nrf51_vbluno51/doc/nrf51_vbluno51.rst

@@ -0,0 +1,141 @@
+.. _nrf51_vbluno51:
+
+nRF51-VBLUno51
+##############
+
+Overview
+********
+
+Zephyr uses the nrf51_vbluno51 board configuration to run on the VBLUno51 board,
+a VNG Bluetooth Low Energy UNO using an nRF51822 ARM processor.
+
+.. figure:: img/nrf51_vbluno51.jpg
+     :align: center
+     :alt: nRF51_VBLUno51
+
+     nrf51_vbluno51 Top
+
+.. figure:: img/nrf51_vbluno51_bot.jpg
+     :align: center
+     :alt: nRF51_VBLUno51 Bottom
+
+     nrf51_vbluno51 Bottom
+
+More information about the board can be found at the
+`VBLUno51 wiki page`_.
+
+Hardware
+********
+
+VBLUno51 board has two external oscillators. The frequency of
+the slow clock is 32.768 kHz. The frequency of the main clock
+is 16 MHz.
+
+Supported Features
+==================
+
+- CPU:
+	+ Nordic nRF51822: ARM® Cortex™ M0 32bit.
+	+ *Bluetooth Low Energy interface.*
+	+ 256KB Flash, 32KB Ram.
+	+ UART(1), I2C(2), SPI(1), PWM(3), SWD, Timer 16bit(3).
+	+ 21 digital channels, 6 ADC 10bit channels.
+	+ 1 Led and 1 Button onboard.
+	+ GPIO Voltage: 0 – 3.3V.
+- DAPLink (CMSIS-DAP) interface for program and debug:
+	+ USB MSD: Drag and Drop programming flash memory.
+	+ USB HID (DAP): CMSIS-DAP compliant debug channel.
+	+ USB CDC: Virtual COM port for log, trace and terminal emulation.
+
+- Supports hardware flow control features (RTS/CTS).
+- *Energy monitoring for BLE module by current measurement (Only VBLUno51_EM)*
+- FOTA (Firmware over the air): Upgrade firmware over BLE interface.
+- Build good applications with:
+	+ Compiler and IDE: GCC, Keil MDK, IAR, Eclipse, Qt Creator.
+	+ Frameworks: Arduino, ARM mbed-OS, Zephyr-OS, Nordic SDK, RIOT-OS, MyNewt-OS, ChibiOS, NuttX RTOS
+	+ A lot of tutorials for Arduino, mbed-os and more.
+- Pinout: Arduino Uno Rev3 compliant.
+- Power:
+	+ USB port.
+	+ Power adapter: +9 -> +12V.
+	+ 3V Battery: CR20xx holder
+	+ Recharageable battery jump: +3.7 -> +12V
+- Open source: Hardware design, firmware, packages, tutorial and example codes
+
+See `VBLUno51 wiki page`_ for full documents and tutorials about the VBLUno51 board.
+
+Connections and IOs
+===================
+
+LED
+---
+
+* LED = LED0 (green) = P0.7
+
+Push buttons
+------------
+
+* BUTTON = BUT = SW0 = P0.15
+
+More details
+------------
+
+.. figure:: img/vbluno51_nordic_pinout.png
+     :align: center
+     :alt: nRF51_VBLUno51 Pinout
+
+     nrf51_vbluno51 Pinout
+
+.. figure:: img/vbluno51_frizting.png
+     :align: center
+     :alt: nRF51_VBLUno51 Fritzing part
+
+     nrf51_vbluno51 Fritzing part
+
+Programming and Debugging
+*************************
+
+Flashing
+========
+
+The VBLUno51 board has on-board DAPLink (CMSIS-DAP) interface for flashing and debugging.
+You do not need any other programming device.
+You only need to install pyOCD tool (https://pypi.python.org/pypi/pyOCD)
+
+This tutorial uses the blinky application :ref:`blinky-sample`
+
+See the :ref:`getting_started` for general information on setting up
+ your development environment.
+
+#. To build the Zephyr kernel along with the blinky sample app, enter:
+
+   .. code-block:: console
+
+      $ cd $ZEPHYR_BASE/samples/basic/blinky
+      $ make BOARD=nrf51_vbluno51
+
+#. To build and flash the generated binary image to the board, enter:
+
+   .. code-block:: console
+
+      $ make BOARD=nrf51_vbluno51 flash
+
+Testing the VBLUno51 with Zephyr: buttons, LEDs, UART, BLE
+**********************************************************
+
+ Here are some sample applications that you can use to test different
+ components on the VBLUno51 board:
+
+ * :ref:`hello_world`
+ * :ref:`blinky-sample`
+ * :ref:`button-sample`
+ * :ref:`bluetooth-beacon-sample`
+ * :ref:`peripheral_hr`
+
+References
+**********
+
+.. target-notes::
+
+.. _VBLUno51 website: http://iotviet.com.vn/store/detail?id=2
+.. _VBLUno51 wiki page: https://vngiotlab.github.io/vbluno/

boards/arm/nrf51_vbluno51/nrf51_vbluno51.yaml

@@ -0,0 +1,8 @@
+identifier: nrf51_vbluno51
+name: nRF51-VBLUno51
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gccarmemb
+ram: 32

boards/arm/nrf51_vbluno51/nrf51_vbluno51_defconfig

@@ -0,0 +1,17 @@
+CONFIG_ARM=y
+CONFIG_SOC_FAMILY_NRF5=y
+CONFIG_SOC_SERIES_NRF51X=y
+CONFIG_SOC_NRF51822_QFAC=y
+CONFIG_BOARD_NRF51_VBLUNO51=y
+
+# enable uart driver
+CONFIG_SERIAL=y
+CONFIG_UART_NRF5=y
+
+# enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# bluetooth
+CONFIG_BLUETOOTH=y
+CONFIG_BLUETOOTH_CONTROLLER=y

dts/arm/Makefile

@@ -35,6 +35,7 @@ dtb-$(CONFIG_BOARD_BBC_MICROBIT)	=	bbc_microbit.dts_compiled
 dtb-$(CONFIG_BOARD_CURIE_BLE)		=	curie_ble.dts_compiled
 dtb-$(CONFIG_BOARD_NRF51_BLENANO)	=	nrf51_blenano.dts_compiled
 dtb-$(CONFIG_BOARD_NRF51_PCA10028)	=	nrf51_pca10028.dts_compiled
+dtb-$(CONFIG_BOARD_NRF51_VBLUNO51)	=	nrf51_vbluno51.dts_compiled
 dtb-$(CONFIG_BOARD_QUARK_SE_C1000_BLE)	=	quark_se_c1000_ble.dts_compiled
 dtb-$(CONFIG_BOARD_QEMU_CORTEX_M3)	=	qemu_cortex_m3.dts_compiled
 dtb-$(CONFIG_BOARD_SAM_E70_XPLAINED)	=	sam_e70_xplained.dts_compiled

dts/arm/nrf51_vbluno51.dts

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2017 VNG IoT Lab Limited
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <nordic/nrf51822.dtsi>
+
+/ {
+	model = "VNG VBLUno51 BLE board";
+	compatible = "vng,vbluno51", "nordic,nrf51822-qfac",
+		     "nordic,nrf51822";
+
+	chosen {
+		zephyr,console = &uart0;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+	};
+};
+
+&uart0 {
+	current-speed = <115200>;
+	status = "ok";
+};

dts/arm/nrf51_vbluno51.fixup

@@ -0,0 +1,4 @@
+#define CONFIG_NUM_IRQ_PRIO_BITS	ARM_V6M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
+#define CONFIG_UART_NRF5_IRQ_PRI	NORDIC_NRF_UART_40002000_IRQ_0_PRIORITY
+#define CONFIG_UART_NRF5_BAUD_RATE	NORDIC_NRF_UART_40002000_CURRENT_SPEED
+#define CONFIG_UART_NRF5_NAME		NORDIC_NRF_UART_40002000_LABEL