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Posted to commits@mynewt.apache.org by we...@apache.org on 2016/10/11 00:43:42 UTC

[2/3] incubator-mynewt-core git commit: MYNEWT-433: Add RedBear nano2 bsp.

MYNEWT-433: Add RedBear nano2 bsp.


Project: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/commit/c117b7b2
Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/tree/c117b7b2
Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/diff/c117b7b2

Branch: refs/heads/develop
Commit: c117b7b27d1f01a2d1a3a8313f7979115b8ad4bc
Parents: b3b452c
Author: William San Filippo <wi...@runtime.io>
Authored: Mon Oct 10 17:42:35 2016 -0700
Committer: William San Filippo <wi...@runtime.io>
Committed: Mon Oct 10 17:43:33 2016 -0700

----------------------------------------------------------------------
 hw/bsp/rb-nano2/boot-rb-nano2.ld                | 191 ++++++++
 hw/bsp/rb-nano2/bsp.yml                         |  58 +++
 hw/bsp/rb-nano2/cmsis-dap.cfg                   |  12 +
 hw/bsp/rb-nano2/include/bsp/boards.h            |   0
 hw/bsp/rb-nano2/include/bsp/bsp.h               |  53 +++
 hw/bsp/rb-nano2/include/bsp/bsp_sysid.h         |  37 ++
 hw/bsp/rb-nano2/include/bsp/cmsis_nvic.h        |  29 ++
 hw/bsp/rb-nano2/include/bsp/nrf_drv_config.h    | 471 +++++++++++++++++++
 hw/bsp/rb-nano2/nrf52.cfg                       |  41 ++
 hw/bsp/rb-nano2/pkg.yml                         |  48 ++
 hw/bsp/rb-nano2/rb-nano2.ld                     | 202 ++++++++
 hw/bsp/rb-nano2/rb-nano2_debug.sh               |  56 +++
 hw/bsp/rb-nano2/rb-nano2_download.sh            | 120 +++++
 hw/bsp/rb-nano2/rb-nano2_no_boot.ld             | 191 ++++++++
 hw/bsp/rb-nano2/split-rb-nano2.ld               | 208 ++++++++
 .../src/arch/cortex_m4/gcc_startup_nrf52.s      | 294 ++++++++++++
 .../arch/cortex_m4/gcc_startup_nrf52_split.s    | 152 ++++++
 hw/bsp/rb-nano2/src/hal_bsp.c                   |  65 +++
 hw/bsp/rb-nano2/src/libc_stubs.c                |  84 ++++
 hw/bsp/rb-nano2/src/os_bsp.c                    |  72 +++
 hw/bsp/rb-nano2/src/sbrk.c                      |  59 +++
 hw/bsp/rb-nano2/src/system_nrf52.c              | 183 +++++++
 hw/bsp/rb-nano2/syscfg.yml                      |  90 ++++
 23 files changed, 2716 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/boot-rb-nano2.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/boot-rb-nano2.ld b/hw/bsp/rb-nano2/boot-rb-nano2.ld
new file mode 100755
index 0000000..5bb2099
--- /dev/null
+++ b/hw/bsp/rb-nano2/boot-rb-nano2.ld
@@ -0,0 +1,191 @@
+/* Linker script for Nordic Semiconductor nRF5 devices
+ *
+ * Version: Sourcery G++ 4.5-1
+ * Support: https://support.codesourcery.com/GNUToolchain/
+ *
+ * Copyright (c) 2007, 2008, 2009, 2010 CodeSourcery, Inc.
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions.  No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x4000
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x10000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __HeapBase
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ *   __bssnz_start__
+ *   __bssnz_end__
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+    .text :
+    {
+        __isr_vector_start = .;
+        KEEP(*(.isr_vector))
+        __isr_vector_end = .;
+        *(.text*)
+
+        KEEP(*(.init))
+        KEEP(*(.fini))
+
+        /* .ctors */
+        *crtbegin.o(.ctors)
+        *crtbegin?.o(.ctors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+        *(SORT(.ctors.*))
+        *(.ctors)
+
+        /* .dtors */
+        *crtbegin.o(.dtors)
+        *crtbegin?.o(.dtors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+        *(SORT(.dtors.*))
+        *(.dtors)
+
+        *(.rodata*)
+
+        *(.eh_frame*)
+        . = ALIGN(4);
+    } > FLASH
+
+
+    .ARM.extab :
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+        . = ALIGN(4);
+    } > FLASH
+
+    __exidx_start = .;
+    .ARM.exidx :
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+        . = ALIGN(4);
+    } > FLASH
+    __exidx_end = .;
+
+    __etext = .;
+
+    .vector_relocation :
+    {
+        . = ALIGN(4);
+        __vector_tbl_reloc__ = .;
+        . = . + (__isr_vector_end - __isr_vector_start);
+        . = ALIGN(4);
+    } > RAM
+
+    .data : AT (__etext)
+    {
+        __data_start__ = .;
+        *(vtable)
+        *(.data*)
+
+        . = ALIGN(4);
+        /* preinit data */
+        PROVIDE_HIDDEN (__preinit_array_start = .);
+        *(.preinit_array)
+        PROVIDE_HIDDEN (__preinit_array_end = .);
+
+        . = ALIGN(4);
+        /* init data */
+        PROVIDE_HIDDEN (__init_array_start = .);
+        *(SORT(.init_array.*))
+        *(.init_array)
+        PROVIDE_HIDDEN (__init_array_end = .);
+
+
+        . = ALIGN(4);
+        /* finit data */
+        PROVIDE_HIDDEN (__fini_array_start = .);
+        *(SORT(.fini_array.*))
+        *(.fini_array)
+        PROVIDE_HIDDEN (__fini_array_end = .);
+
+        *(.jcr)
+        . = ALIGN(4);
+        /* All data end */
+        __data_end__ = .;
+    } > RAM
+
+    /* Non-zeroed BSS.  This section is similar to BSS, with the following 
+     * caveat:
+     *    1. It does not get zeroed at init-time.
+     */
+    .bssnz :
+    {
+        . = ALIGN(4);
+        __bssnz_start__ = .;
+        *(.bss.core.nz*)
+        . = ALIGN(4);
+        __bssnz_end__ = .;
+    } > RAM
+
+    .bss :
+    {
+        . = ALIGN(4);
+        __bss_start__ = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4);
+        __bss_end__ = .;
+    } > RAM
+
+    /* Heap starts after BSS */
+    __HeapBase = .;
+
+    /* .stack_dummy section doesn't contains any symbols. It is only
+     * used for linker to calculate size of stack sections, and assign
+     * values to stack symbols later */
+    .stack_dummy (COPY):
+    {
+        *(.stack*)
+    } > RAM
+
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    __StackLimit = __StackTop - SIZEOF(.stack_dummy);
+    PROVIDE(__stack = __StackTop);
+
+    /* Top of head is the bottom of the stack */
+    __HeapLimit = __StackLimit;
+
+    /* Check if data + heap + stack exceeds RAM limit */
+    ASSERT(__HeapBase <= __HeapLimit, "region RAM overflowed with stack")
+}
+

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/bsp.yml
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/bsp.yml b/hw/bsp/rb-nano2/bsp.yml
new file mode 100644
index 0000000..bc9ef54
--- /dev/null
+++ b/hw/bsp/rb-nano2/bsp.yml
@@ -0,0 +1,58 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+bsp.arch: cortex_m4
+bsp.compiler: compiler/arm-none-eabi-m4
+bsp.linkerscript: "rb-nano2.ld"
+bsp.linkerscript.BOOT_LOADER.OVERWRITE: "boot-rb-nano2.ld"
+bsp.part2linkerscript: "split-rb-nano2.ld"
+bsp.downloadscript: rb-nano2_download.sh
+bsp.debugscript: rb-nano2_debug.sh
+
+bsp.flash_map:
+    areas:
+        # System areas.
+        FLASH_AREA_BOOTLOADER:
+            device: 0
+            offset: 0x00000000
+            size: 16kB
+        FLASH_AREA_IMAGE_0:
+            device: 0
+            offset: 0x00008000
+            size: 232kB
+        FLASH_AREA_IMAGE_1:
+            device: 0
+            offset: 0x00042000
+            size: 232kB
+        FLASH_AREA_IMAGE_SCRATCH:
+            device: 0
+            offset: 0x0007c000
+            size: 4kB
+
+        # User areas.
+        FLASH_AREA_REBOOT_LOG:
+            user_id: 0
+            device: 0
+            offset: 0x00004000
+            size: 16kB
+        FLASH_AREA_NFFS:
+            user_id: 1
+            device: 0
+            offset: 0x0007d000
+            size: 12kB

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/cmsis-dap.cfg
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/cmsis-dap.cfg b/hw/bsp/rb-nano2/cmsis-dap.cfg
new file mode 100644
index 0000000..7251280
--- /dev/null
+++ b/hw/bsp/rb-nano2/cmsis-dap.cfg
@@ -0,0 +1,12 @@
+#
+# ARM CMSIS-DAP compliant adapter
+#
+# http://www.keil.com/support/man/docs/dapdebug/
+#
+
+interface cmsis-dap
+
+#set WORKAREASIZE 0x2000
+
+# Optionally specify the serial number of CMSIS-DAP usb device.
+#cmsis_dap_serial 02200201E6661E601B98E3B9

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/include/bsp/boards.h
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/include/bsp/boards.h b/hw/bsp/rb-nano2/include/bsp/boards.h
new file mode 100644
index 0000000..e69de29

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/include/bsp/bsp.h
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/include/bsp/bsp.h b/hw/bsp/rb-nano2/include/bsp/bsp.h
new file mode 100644
index 0000000..a1a7455
--- /dev/null
+++ b/hw/bsp/rb-nano2/include/bsp/bsp.h
@@ -0,0 +1,53 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#ifndef H_BSP_H
+#define H_BSP_H
+
+#include <inttypes.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Define special stackos sections */
+#define sec_data_core   __attribute__((section(".data.core")))
+#define sec_bss_core    __attribute__((section(".bss.core")))
+#define sec_bss_nz_core __attribute__((section(".bss.core.nz")))
+
+/* More convenient section placement macros. */
+#define bssnz_t         sec_bss_nz_core
+
+extern uint8_t _ram_start;
+#define RAM_SIZE        0x10000
+
+/* LED */
+#define LED_BLINK_PIN   (11)
+
+/* UART info */
+#define CONSOLE_UART    "uart0"
+#define CONSOLE_UART_SPEED      115200
+
+#define NFFS_AREA_MAX   (8)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* H_BSP_H */

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/include/bsp/bsp_sysid.h
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/include/bsp/bsp_sysid.h b/hw/bsp/rb-nano2/include/bsp/bsp_sysid.h
new file mode 100644
index 0000000..63959e5
--- /dev/null
+++ b/hw/bsp/rb-nano2/include/bsp/bsp_sysid.h
@@ -0,0 +1,37 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+#ifndef BSP_SYSID_H
+#define BSP_SYSID_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* stub until this BSP gets new HAL */
+enum system_device_id  
+{
+    RESERVED,
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BSP_SYSID_H */
+

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/include/bsp/cmsis_nvic.h
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/include/bsp/cmsis_nvic.h b/hw/bsp/rb-nano2/include/bsp/cmsis_nvic.h
new file mode 100644
index 0000000..856f7d0
--- /dev/null
+++ b/hw/bsp/rb-nano2/include/bsp/cmsis_nvic.h
@@ -0,0 +1,29 @@
+/* mbed Microcontroller Library - cmsis_nvic
+ * Copyright (c) 2009-2011 ARM Limited. All rights reserved.
+ *
+ * CMSIS-style functionality to support dynamic vectors
+ */
+
+#ifndef MBED_CMSIS_NVIC_H
+#define MBED_CMSIS_NVIC_H
+
+#include <stdint.h>
+
+#define NVIC_NUM_VECTORS      (16 + 38)   // CORE + MCU Peripherals
+#define NVIC_USER_IRQ_OFFSET  16
+
+#include "nrf52.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void NVIC_Relocate(void);
+void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector);
+uint32_t NVIC_GetVector(IRQn_Type IRQn);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/include/bsp/nrf_drv_config.h
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/include/bsp/nrf_drv_config.h b/hw/bsp/rb-nano2/include/bsp/nrf_drv_config.h
new file mode 100644
index 0000000..b5c7806
--- /dev/null
+++ b/hw/bsp/rb-nano2/include/bsp/nrf_drv_config.h
@@ -0,0 +1,471 @@
+/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
+ *
+ * The information contained herein is property of Nordic Semiconductor ASA.
+ * Terms and conditions of usage are described in detail in NORDIC
+ * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
+ *
+ * Licensees are granted free, non-transferable use of the information. NO
+ * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
+ * the file.
+ *
+ */
+
+#ifndef NRF_DRV_CONFIG_H
+#define NRF_DRV_CONFIG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Provide a non-zero value here in applications that need to use several
+ * peripherals with the same ID that are sharing certain resources
+ * (for example, SPI0 and TWI0). Obviously, such peripherals cannot be used
+ * simultaneously. Therefore, this definition allows to initialize the driver
+ * for another peripheral from a given group only after the previously used one
+ * is uninitialized. Normally, this is not possible, because interrupt handlers
+ * are implemented in individual drivers.
+ * This functionality requires a more complicated interrupt handling and driver
+ * initialization, hence it is not always desirable to use it.
+ */
+#define PERIPHERAL_RESOURCE_SHARING_ENABLED  1
+
+/* CLOCK */
+#define CLOCK_ENABLED 1
+
+#if (CLOCK_ENABLED == 1)
+#define CLOCK_CONFIG_XTAL_FREQ          NRF_CLOCK_XTALFREQ_Default
+#define CLOCK_CONFIG_LF_SRC             NRF_CLOCK_LFCLK_Xtal
+#define CLOCK_CONFIG_IRQ_PRIORITY       APP_IRQ_PRIORITY_LOW
+#endif
+
+/* GPIOTE */
+#define GPIOTE_ENABLED 1
+
+#if (GPIOTE_ENABLED == 1)
+#define GPIOTE_CONFIG_USE_SWI_EGU false
+#define GPIOTE_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+#define GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS 1
+#endif
+
+/* TIMER */
+#define TIMER0_ENABLED 1
+
+#if (TIMER0_ENABLED == 1)
+#define TIMER0_CONFIG_FREQUENCY    NRF_TIMER_FREQ_16MHz
+#define TIMER0_CONFIG_MODE         TIMER_MODE_MODE_Timer
+#define TIMER0_CONFIG_BIT_WIDTH    TIMER_BITMODE_BITMODE_32Bit
+#define TIMER0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+
+#define TIMER0_INSTANCE_INDEX      0
+#endif
+
+#define TIMER1_ENABLED 0
+
+#if (TIMER1_ENABLED == 1)
+#define TIMER1_CONFIG_FREQUENCY    NRF_TIMER_FREQ_16MHz
+#define TIMER1_CONFIG_MODE         TIMER_MODE_MODE_Timer
+#define TIMER1_CONFIG_BIT_WIDTH    TIMER_BITMODE_BITMODE_16Bit
+#define TIMER1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+
+#define TIMER1_INSTANCE_INDEX      (TIMER0_ENABLED)
+#endif
+
+#define TIMER2_ENABLED 0
+
+#if (TIMER2_ENABLED == 1)
+#define TIMER2_CONFIG_FREQUENCY    NRF_TIMER_FREQ_16MHz
+#define TIMER2_CONFIG_MODE         TIMER_MODE_MODE_Timer
+#define TIMER2_CONFIG_BIT_WIDTH    TIMER_BITMODE_BITMODE_16Bit
+#define TIMER2_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+
+#define TIMER2_INSTANCE_INDEX      (TIMER1_ENABLED+TIMER0_ENABLED)
+#endif
+
+#define TIMER3_ENABLED 0
+
+#if (TIMER3_ENABLED == 1)
+#define TIMER3_CONFIG_FREQUENCY    NRF_TIMER_FREQ_16MHz
+#define TIMER3_CONFIG_MODE         TIMER_MODE_MODE_Timer
+#define TIMER3_CONFIG_BIT_WIDTH    TIMER_BITMODE_BITMODE_16Bit
+#define TIMER3_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+
+#define TIMER3_INSTANCE_INDEX      (TIMER2_ENABLED+TIMER1_ENABLED+TIMER0_ENABLED)
+#endif
+
+#define TIMER4_ENABLED 0
+
+#if (TIMER4_ENABLED == 1)
+#define TIMER4_CONFIG_FREQUENCY    NRF_TIMER_FREQ_16MHz
+#define TIMER4_CONFIG_MODE         TIMER_MODE_MODE_Timer
+#define TIMER4_CONFIG_BIT_WIDTH    TIMER_BITMODE_BITMODE_16Bit
+#define TIMER4_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+
+#define TIMER4_INSTANCE_INDEX      (TIMER3_ENABLED+TIMER2_ENABLED+TIMER1_ENABLED+TIMER0_ENABLED)
+#endif
+
+
+#define TIMER_COUNT (TIMER0_ENABLED + TIMER1_ENABLED + TIMER2_ENABLED + TIMER3_ENABLED + TIMER4_ENABLED)
+
+/* RTC */
+#define RTC0_ENABLED 0
+
+#if (RTC0_ENABLED == 1)
+#define RTC0_CONFIG_FREQUENCY    32678
+#define RTC0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+#define RTC0_CONFIG_RELIABLE     false
+
+#define RTC0_INSTANCE_INDEX      0
+#endif
+
+#define RTC1_ENABLED 0
+
+#if (RTC1_ENABLED == 1)
+#define RTC1_CONFIG_FREQUENCY    32768
+#define RTC1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+#define RTC1_CONFIG_RELIABLE     false
+
+#define RTC1_INSTANCE_INDEX      (RTC0_ENABLED)
+#endif
+
+#define RTC2_ENABLED 0
+
+#if (RTC2_ENABLED == 1)
+#define RTC2_CONFIG_FREQUENCY    32768
+#define RTC2_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+#define RTC2_CONFIG_RELIABLE     false
+
+#define RTC2_INSTANCE_INDEX      (RTC0_ENABLED+RTC1_ENABLED)
+#endif
+
+
+#define RTC_COUNT                (RTC0_ENABLED+RTC1_ENABLED+RTC2_ENABLED)
+
+#define NRF_MAXIMUM_LATENCY_US 2000
+
+/* RNG */
+#define RNG_ENABLED 1
+
+#if (RNG_ENABLED == 1)
+#define RNG_CONFIG_ERROR_CORRECTION true
+#define RNG_CONFIG_POOL_SIZE        8
+#define RNG_CONFIG_IRQ_PRIORITY     APP_IRQ_PRIORITY_LOW
+#endif
+
+/* PWM */
+
+#define PWM0_ENABLED 1
+
+#if (PWM0_ENABLED == 1)
+#define PWM0_CONFIG_OUT0_PIN        2
+#define PWM0_CONFIG_OUT1_PIN        3
+#define PWM0_CONFIG_OUT2_PIN        4
+#define PWM0_CONFIG_OUT3_PIN        5
+#define PWM0_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+#define PWM0_CONFIG_BASE_CLOCK      NRF_PWM_CLK_1MHz
+#define PWM0_CONFIG_COUNT_MODE      NRF_PWM_MODE_UP
+#define PWM0_CONFIG_TOP_VALUE       1000
+#define PWM0_CONFIG_LOAD_MODE       NRF_PWM_LOAD_COMMON
+#define PWM0_CONFIG_STEP_MODE       NRF_PWM_STEP_AUTO
+
+#define PWM0_INSTANCE_INDEX 0
+#endif
+
+#define PWM1_ENABLED 0
+
+#if (PWM1_ENABLED == 1)
+#define PWM1_CONFIG_OUT0_PIN        2
+#define PWM1_CONFIG_OUT1_PIN        3
+#define PWM1_CONFIG_OUT2_PIN        4
+#define PWM1_CONFIG_OUT3_PIN        5
+#define PWM1_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+#define PWM1_CONFIG_BASE_CLOCK      NRF_PWM_CLK_1MHz
+#define PWM1_CONFIG_COUNT_MODE      NRF_PWM_MODE_UP
+#define PWM1_CONFIG_TOP_VALUE       1000
+#define PWM1_CONFIG_LOAD_MODE       NRF_PWM_LOAD_COMMON
+#define PWM1_CONFIG_STEP_MODE       NRF_PWM_STEP_AUTO
+
+#define PWM1_INSTANCE_INDEX (PWM0_ENABLED)
+#endif
+
+#define PWM2_ENABLED 0
+
+#if (PWM2_ENABLED == 1)
+#define PWM2_CONFIG_OUT0_PIN        2
+#define PWM2_CONFIG_OUT1_PIN        3
+#define PWM2_CONFIG_OUT2_PIN        4
+#define PWM2_CONFIG_OUT3_PIN        5
+#define PWM2_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+#define PWM2_CONFIG_BASE_CLOCK      NRF_PWM_CLK_1MHz
+#define PWM2_CONFIG_COUNT_MODE      NRF_PWM_MODE_UP
+#define PWM2_CONFIG_TOP_VALUE       1000
+#define PWM2_CONFIG_LOAD_MODE       NRF_PWM_LOAD_COMMON
+#define PWM2_CONFIG_STEP_MODE       NRF_PWM_STEP_AUTO
+
+#define PWM2_INSTANCE_INDEX (PWM0_ENABLED + PWM1_ENABLED)
+#endif
+
+#define PWM_COUNT   (PWM0_ENABLED + PWM1_ENABLED + PWM2_ENABLED)
+
+/* SPI */
+#define SPI0_ENABLED 1
+
+#if (SPI0_ENABLED == 1)
+#define SPI0_USE_EASY_DMA 1
+#define SPI0_CONFIG_SCK_PIN         2
+#define SPI0_CONFIG_MOSI_PIN        3
+#define SPI0_CONFIG_MISO_PIN        4
+#define SPI0_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+
+#define SPI0_INSTANCE_INDEX 0
+#endif
+
+#define SPI1_ENABLED 0
+
+#if (SPI1_ENABLED == 1)
+#define SPI1_USE_EASY_DMA 0
+
+#define SPI1_CONFIG_SCK_PIN         2
+#define SPI1_CONFIG_MOSI_PIN        3
+#define SPI1_CONFIG_MISO_PIN        4
+#define SPI1_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+
+#define SPI1_INSTANCE_INDEX (SPI0_ENABLED)
+#endif
+
+#define SPI2_ENABLED 0
+
+#if (SPI2_ENABLED == 1)
+#define SPI2_USE_EASY_DMA 0
+
+#define SPI2_CONFIG_SCK_PIN         2
+#define SPI2_CONFIG_MOSI_PIN        3
+#define SPI2_CONFIG_MISO_PIN        4
+#define SPI2_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+
+#define SPI2_INSTANCE_INDEX (SPI0_ENABLED + SPI1_ENABLED)
+#endif
+
+#define SPI_COUNT   (SPI0_ENABLED + SPI1_ENABLED + SPI2_ENABLED)
+
+/* SPIS */
+#define SPIS0_ENABLED 1
+
+#if (SPIS0_ENABLED == 1)
+#define SPIS0_CONFIG_SCK_PIN         23
+#define SPIS0_CONFIG_MOSI_PIN        24
+#define SPIS0_CONFIG_MISO_PIN        25
+#define SPIS0_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+
+#define SPIS0_INSTANCE_INDEX 0
+#endif
+
+#define SPIS1_ENABLED 0
+
+#if (SPIS1_ENABLED == 1)
+#define SPIS1_CONFIG_SCK_PIN         2
+#define SPIS1_CONFIG_MOSI_PIN        3
+#define SPIS1_CONFIG_MISO_PIN        4
+#define SPIS1_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+
+#define SPIS1_INSTANCE_INDEX SPIS0_ENABLED
+#endif
+
+#define SPIS2_ENABLED 0
+
+#if (SPIS2_ENABLED == 1)
+#define SPIS2_CONFIG_SCK_PIN         2
+#define SPIS2_CONFIG_MOSI_PIN        3
+#define SPIS2_CONFIG_MISO_PIN        4
+#define SPIS2_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+
+#define SPIS2_INSTANCE_INDEX (SPIS0_ENABLED + SPIS1_ENABLED)
+#endif
+
+#define SPIS_COUNT   (SPIS0_ENABLED + SPIS1_ENABLED + SPIS2_ENABLED)
+
+/* UART */
+#define UART0_ENABLED 1
+
+#if (UART0_ENABLED == 1)
+#define UART0_CONFIG_HWFC         NRF_UART_HWFC_DISABLED
+#define UART0_CONFIG_PARITY       NRF_UART_PARITY_EXCLUDED
+#define UART0_CONFIG_BAUDRATE     NRF_UART_BAUDRATE_115200
+#define UART0_CONFIG_PSEL_TXD     0
+#define UART0_CONFIG_PSEL_RXD     0
+#define UART0_CONFIG_PSEL_CTS     0
+#define UART0_CONFIG_PSEL_RTS     0
+#define UART0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+#ifdef NRF52
+#define UART0_CONFIG_USE_EASY_DMA false
+//Compile time flag
+#define UART_EASY_DMA_SUPPORT     1
+#define UART_LEGACY_SUPPORT       1
+#endif //NRF52
+#endif
+
+#define TWI0_ENABLED 1
+
+#if (TWI0_ENABLED == 1)
+#define TWI0_USE_EASY_DMA 0
+
+#define TWI0_CONFIG_FREQUENCY    NRF_TWI_FREQ_100K
+#define TWI0_CONFIG_SCL          0
+#define TWI0_CONFIG_SDA          1
+#define TWI0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+
+#define TWI0_INSTANCE_INDEX      0
+#endif
+
+#define TWI1_ENABLED 1
+
+#if (TWI1_ENABLED == 1)
+#define TWI1_USE_EASY_DMA 0
+
+#define TWI1_CONFIG_FREQUENCY    NRF_TWI_FREQ_100K
+#define TWI1_CONFIG_SCL          0
+#define TWI1_CONFIG_SDA          1
+#define TWI1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+
+#define TWI1_INSTANCE_INDEX      (TWI0_ENABLED)
+#endif
+
+#define TWI_COUNT                (TWI0_ENABLED + TWI1_ENABLED)
+
+/* TWIS */
+#define TWIS0_ENABLED 1
+
+#if (TWIS0_ENABLED == 1)
+    #define TWIS0_CONFIG_ADDR0        0
+    #define TWIS0_CONFIG_ADDR1        0 /* 0: Disabled */
+    #define TWIS0_CONFIG_SCL          0
+    #define TWIS0_CONFIG_SDA          1
+    #define TWIS0_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+
+    #define TWIS0_INSTANCE_INDEX      0
+#endif
+
+#define TWIS1_ENABLED 0
+
+#if (TWIS1_ENABLED ==  1)
+    #define TWIS1_CONFIG_ADDR0        0
+    #define TWIS1_CONFIG_ADDR1        0 /* 0: Disabled */
+    #define TWIS1_CONFIG_SCL          0
+    #define TWIS1_CONFIG_SDA          1
+    #define TWIS1_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+
+    #define TWIS1_INSTANCE_INDEX      (TWIS0_ENABLED)
+#endif
+
+#define TWIS_COUNT (TWIS0_ENABLED + TWIS1_ENABLED)
+/* For more documentation see nrf_drv_twis.h file */
+#define TWIS_ASSUME_INIT_AFTER_RESET_ONLY 0
+/* For more documentation see nrf_drv_twis.h file */
+#define TWIS_NO_SYNC_MODE 0
+
+/* QDEC */
+#define QDEC_ENABLED 1
+
+#if (QDEC_ENABLED == 1)
+#define QDEC_CONFIG_REPORTPER    NRF_QDEC_REPORTPER_10
+#define QDEC_CONFIG_SAMPLEPER    NRF_QDEC_SAMPLEPER_16384us
+#define QDEC_CONFIG_PIO_A        1
+#define QDEC_CONFIG_PIO_B        2
+#define QDEC_CONFIG_PIO_LED      3
+#define QDEC_CONFIG_LEDPRE       511
+#define QDEC_CONFIG_LEDPOL       NRF_QDEC_LEPOL_ACTIVE_HIGH
+#define QDEC_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+#define QDEC_CONFIG_DBFEN        false
+#define QDEC_CONFIG_SAMPLE_INTEN false
+#endif
+
+/* ADC */
+#define ADC_ENABLED 0
+
+#if (ADC_ENABLED == 1)
+#define ADC_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+#endif
+
+
+/* SAADC */
+#define SAADC_ENABLED 1
+
+#if (SAADC_ENABLED == 1)
+#define SAADC_CONFIG_RESOLUTION      NRF_SAADC_RESOLUTION_10BIT
+#define SAADC_CONFIG_OVERSAMPLE      NRF_SAADC_OVERSAMPLE_DISABLED
+#define SAADC_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+#endif
+
+/* PDM */
+#define PDM_ENABLED 0
+
+#if (PDM_ENABLED == 1)
+#define PDM_CONFIG_MODE            NRF_PDM_MODE_MONO
+#define PDM_CONFIG_EDGE            NRF_PDM_EDGE_LEFTFALLING
+#define PDM_CONFIG_CLOCK_FREQ      NRF_PDM_FREQ_1032K
+#define PDM_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW
+#endif
+
+/* COMP */
+#define COMP_ENABLED 1
+
+#if (COMP_ENABLED == 1)
+#define COMP_CONFIG_REF     		NRF_COMP_REF_Int1V8
+#define COMP_CONFIG_MAIN_MODE		NRF_COMP_MAIN_MODE_SE
+#define COMP_CONFIG_SPEED_MODE		NRF_COMP_SP_MODE_High
+#define COMP_CONFIG_HYST			NRF_COMP_HYST_NoHyst
+#define COMP_CONFIG_ISOURCE			NRF_COMP_ISOURCE_Off
+#define COMP_CONFIG_IRQ_PRIORITY 	APP_IRQ_PRIORITY_LOW
+#define COMP_CONFIG_INPUT        	NRF_COMP_INPUT_0
+#endif
+
+/* LPCOMP */
+#define LPCOMP_ENABLED 1
+
+#if (LPCOMP_ENABLED == 1)
+#define LPCOMP_CONFIG_REFERENCE    NRF_LPCOMP_REF_SUPPLY_4_8
+#define LPCOMP_CONFIG_DETECTION    NRF_LPCOMP_DETECT_DOWN
+#define LPCOMP_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_LOW
+#define LPCOMP_CONFIG_INPUT        NRF_LPCOMP_INPUT_0
+#endif
+
+/* WDT */
+#define WDT_ENABLED 1
+
+#if (WDT_ENABLED == 1)
+#define WDT_CONFIG_BEHAVIOUR     NRF_WDT_BEHAVIOUR_RUN_SLEEP
+#define WDT_CONFIG_RELOAD_VALUE  2000
+#define WDT_CONFIG_IRQ_PRIORITY  APP_IRQ_PRIORITY_HIGH
+#endif
+
+/* SWI EGU */
+#ifdef NRF52
+    #define EGU_ENABLED 0
+#endif
+
+/* I2S */
+#define I2S_ENABLED 1
+
+#if (I2S_ENABLED == 1)
+#define I2S_CONFIG_SCK_PIN      22
+#define I2S_CONFIG_LRCK_PIN     23
+#define I2S_CONFIG_MCK_PIN      NRF_DRV_I2S_PIN_NOT_USED
+#define I2S_CONFIG_SDOUT_PIN    24
+#define I2S_CONFIG_SDIN_PIN     25
+#define I2S_CONFIG_IRQ_PRIORITY APP_IRQ_PRIORITY_HIGH
+#define I2S_CONFIG_MASTER       NRF_I2S_MODE_MASTER
+#define I2S_CONFIG_FORMAT       NRF_I2S_FORMAT_I2S
+#define I2S_CONFIG_ALIGN        NRF_I2S_ALIGN_LEFT
+#define I2S_CONFIG_SWIDTH       NRF_I2S_SWIDTH_16BIT
+#define I2S_CONFIG_CHANNELS     NRF_I2S_CHANNELS_STEREO
+#define I2S_CONFIG_MCK_SETUP    NRF_I2S_MCK_32MDIV8
+#define I2S_CONFIG_RATIO        NRF_I2S_RATIO_256X
+#endif
+
+#include "nrf_drv_config_validation.h"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NRF_DRV_CONFIG_H

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/nrf52.cfg
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/nrf52.cfg b/hw/bsp/rb-nano2/nrf52.cfg
new file mode 100644
index 0000000..c4ba167
--- /dev/null
+++ b/hw/bsp/rb-nano2/nrf52.cfg
@@ -0,0 +1,41 @@
+#
+# Nordic nRF52 series: ARM Cortex-M4 @ 64 MHz
+#
+
+source [find target/swj-dp.tcl]
+
+if { [info exists CHIPNAME] } {
+	set _CHIPNAME $CHIPNAME
+} else {
+	set _CHIPNAME nrf52
+}
+
+if { [info exists CPUTAPID] } {
+	set _CPUTAPID $CPUTAPID
+} else {
+	set _CPUTAPID 0x2ba01477
+}
+
+# Work-area is a space in RAM used for flash programming
+# By default use 16kB
+if { [info exists WORKAREASIZE] } {
+   set _WORKAREASIZE $WORKAREASIZE
+} else {
+   set _WORKAREASIZE 0x4000
+}
+
+swj_newdap $_CHIPNAME cpu -expected-id $_CPUTAPID
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME cortex_m -chain-position $_TARGETNAME
+
+$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
+
+flash bank $_CHIPNAME.flash nrf52 0x00000000 0 1 1 $_TARGETNAME
+flash bank $_CHIPNAME.uicr nrf52 0x10001000 0 1 1 $_TARGETNAME
+
+adapter_khz 10000
+
+if { ![using_hla] } {
+	cortex_m reset_config sysresetreq
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/pkg.yml
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/pkg.yml b/hw/bsp/rb-nano2/pkg.yml
new file mode 100644
index 0000000..1b6f68b
--- /dev/null
+++ b/hw/bsp/rb-nano2/pkg.yml
@@ -0,0 +1,48 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+pkg.name: hw/bsp/rb-nano2
+pkg.type: bsp
+pkg.description: BSP definition for the Red Bear Labs nano2 module.
+pkg.author: "Apache Mynewt <de...@mynewt.incubator.apache.org>"
+pkg.homepage: "http://mynewt.apache.org/"
+pkg.keywords:
+    - nrf52
+    - nano2
+    - RedBearLabs
+
+pkg.cflags:
+    # Nordic SDK files require these defines.
+    - '-DNRF52'
+    - '-DSPI_MASTER_0_ENABLE'
+
+pkg.deps:
+    - boot/bootutil
+    - hw/mcu/nordic/nrf52xxx
+    - libc/baselibc
+    - sys/flash_map
+
+pkg.deps.BLE_DEVICE:
+    - hw/drivers/nimble/nrf52
+
+pkg.deps.ADC_0:
+    - hw/drivers/adc/adc_nrf52
+
+pkg.deps.UART_0:
+    - hw/drivers/uart/uart_hal

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/rb-nano2.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/rb-nano2.ld b/hw/bsp/rb-nano2/rb-nano2.ld
new file mode 100755
index 0000000..e131176
--- /dev/null
+++ b/hw/bsp/rb-nano2/rb-nano2.ld
@@ -0,0 +1,202 @@
+/* Linker script for Nordic Semiconductor nRF5 devices
+ *
+ * Version: Sourcery G++ 4.5-1
+ * Support: https://support.codesourcery.com/GNUToolchain/
+ *
+ * Copyright (c) 2007, 2008, 2009, 2010 CodeSourcery, Inc.
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions.  No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00008000, LENGTH = 0x3a000
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x10000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __HeapBase
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ *   __bssnz_start__
+ *   __bssnz_end__
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+    .imghdr (NOLOAD):
+    {
+        . = . + 0x20;
+    } > FLASH
+
+    .text :
+    {
+        __isr_vector_start = .;
+        KEEP(*(.isr_vector))
+        __isr_vector_end = .;
+        *(.text*)
+
+        KEEP(*(.init))
+        KEEP(*(.fini))
+
+        /* .ctors */
+        *crtbegin.o(.ctors)
+        *crtbegin?.o(.ctors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+        *(SORT(.ctors.*))
+        *(.ctors)
+
+        /* .dtors */
+        *crtbegin.o(.dtors)
+        *crtbegin?.o(.dtors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+        *(SORT(.dtors.*))
+        *(.dtors)
+
+        *(.rodata*)
+
+        *(.eh_frame*)
+        . = ALIGN(4);
+    } > FLASH
+
+
+    .ARM.extab :
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+        . = ALIGN(4);
+    } > FLASH
+
+    __exidx_start = .;
+    .ARM.exidx :
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+        . = ALIGN(4);
+    } > FLASH
+    __exidx_end = .;
+
+    __etext = .;
+
+    .vector_relocation :
+    {
+        . = ALIGN(4);
+        __vector_tbl_reloc__ = .;
+        . = . + (__isr_vector_end - __isr_vector_start);
+        . = ALIGN(4);
+    } > RAM
+
+    .data : AT (__etext)
+    {
+        __data_start__ = .;
+        *(vtable)
+        *(.data*)
+
+        . = ALIGN(4);
+        /* preinit data */
+        PROVIDE_HIDDEN (__preinit_array_start = .);
+        *(.preinit_array)
+        PROVIDE_HIDDEN (__preinit_array_end = .);
+
+        . = ALIGN(4);
+        /* init data */
+        PROVIDE_HIDDEN (__init_array_start = .);
+        *(SORT(.init_array.*))
+        *(.init_array)
+        PROVIDE_HIDDEN (__init_array_end = .);
+
+
+        . = ALIGN(4);
+        /* finit data */
+        PROVIDE_HIDDEN (__fini_array_start = .);
+        *(SORT(.fini_array.*))
+        *(.fini_array)
+        PROVIDE_HIDDEN (__fini_array_end = .);
+
+        *(.jcr)
+        . = ALIGN(4);
+        /* All data end */
+        __data_end__ = .;
+    } > RAM
+
+    /* Non-zeroed BSS.  This section is similar to BSS, with the following two
+     * caveats:
+     *    1. It does not get zeroed at init-time.
+     *    2. You cannot use it as source memory for EasyDMA.
+     *
+     * This section exists because of a hardware defect; see errata 33 and 34
+     * in nrf52 errata sheet.
+     */
+    .bssnz :
+    {
+        . = ALIGN(4);
+        __bssnz_start__ = .;
+        *(.bss.core.nz*)
+        . = ALIGN(4);
+        __bssnz_end__ = .;
+    } > RAM
+
+    .bss :
+    {
+        . = ALIGN(4);
+        __bss_start__ = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4);
+        __bss_end__ = .;
+    } > RAM
+
+    /* Heap starts after BSS */
+    __HeapBase = .;
+
+    /* .stack_dummy section doesn't contains any symbols. It is only
+     * used for linker to calculate size of stack sections, and assign
+     * values to stack symbols later */
+    .stack_dummy (COPY):
+    {
+        *(.stack*)
+    } > RAM
+
+    _ram_start = ORIGIN(RAM);
+
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    __StackLimit = __StackTop - SIZEOF(.stack_dummy);
+    PROVIDE(__stack = __StackTop);
+
+    /* Top of head is the bottom of the stack */
+    __HeapLimit = __StackLimit;
+
+    /* Check if data + heap + stack exceeds RAM limit */
+    ASSERT(__HeapBase <= __HeapLimit, "region RAM overflowed with stack")
+}
+

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/rb-nano2_debug.sh
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/rb-nano2_debug.sh b/hw/bsp/rb-nano2/rb-nano2_debug.sh
new file mode 100755
index 0000000..ccaf5fd
--- /dev/null
+++ b/hw/bsp/rb-nano2/rb-nano2_debug.sh
@@ -0,0 +1,56 @@
+#!/bin/sh
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+# Called with following variables set:
+#  - BSP_PATH is absolute path to hw/bsp/bsp_name
+#  - BIN_BASENAME is the path to prefix to target binary,
+#    .elf appended to name is the ELF file
+#  - FEATURES holds the target features string
+#  - EXTRA_JTAG_CMD holds extra parameters to pass to jtag software
+#  - RESET set if target should be reset when attaching
+#
+if [ -z "$BIN_BASENAME" ]; then
+    echo "Need binary to debug"
+    exit 1
+fi
+
+if [ -z "$BSP_PATH" ]; then
+    echo "Need BSP path for openocd script location"
+    exit 1
+fi
+
+FILE_NAME=$BIN_BASENAME.elf
+GDB_CMD_FILE=.gdb_cmds
+
+echo "Debugging" $FILE_NAME
+
+set -m
+openocd -s $BSP_PATH -f cmsis-dap.cfg -f nrf52.cfg -c "nrf52.cpu configure -event gdb-detach {resume;shutdown}" -c "$EXTRA_JTAG_CMD" -c init -c halt &
+set +m
+
+echo "target remote localhost:3333" > $GDB_CMD_FILE
+# Whether target should be reset or not
+if [ ! -z "$RESET" ]; then
+    echo "mon reset" >> $GDB_CMD_FILE
+fi
+
+arm-none-eabi-gdb -x $GDB_CMD_FILE $FILE_NAME
+
+rm $GDB_CMD_FILE
+

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/rb-nano2_download.sh
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/rb-nano2_download.sh b/hw/bsp/rb-nano2/rb-nano2_download.sh
new file mode 100755
index 0000000..d461450
--- /dev/null
+++ b/hw/bsp/rb-nano2/rb-nano2_download.sh
@@ -0,0 +1,120 @@
+#!/bin/bash
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+# Called with following variables set:
+#  - BSP_PATH is absolute path to hw/bsp/bsp_name
+#  - BIN_BASENAME is the path to prefix to target binary,
+#    .elf appended to name is the ELF file
+#  - IMAGE_SLOT is the image slot to download to
+#  - FEATURES holds the target features string
+#  - EXTRA_JTAG_CMD holds extra parameters to pass to jtag software
+#
+
+if [ -z "$BIN_BASENAME" ]; then
+    echo "Need binary to download"
+    exit 1
+fi
+
+if [ -z "$IMAGE_SLOT" ]; then
+    echo "Need image slot to download"
+    exit 1
+fi
+
+IS_BOOTLOADER=0
+#JLINK_SCRIPT=.download.jlink
+GDB_CMD_FILE=.gdb_cmds
+
+# Look for 'bootloader' in FEATURES
+for feature in $FEATURES; do
+    if [ $feature == "BOOT_LOADER" ]; then
+        IS_BOOTLOADER=1
+    fi
+done
+
+if [ $IS_BOOTLOADER -eq 1 ]; then
+    FLASH_OFFSET=0x0
+    FILE_NAME=$BIN_BASENAME.elf.bin
+elif [ $IMAGE_SLOT -eq 0 ]; then
+    FLASH_OFFSET=0x8000
+    FILE_NAME=$BIN_BASENAME.img
+elif [ $IMAGE_SLOT -eq 1 ]; then
+    FLASH_OFFSET=0x23800
+    FILE_NAME=$BIN_BASENAME.img
+else
+    echo "Invalid Image Slot Number: $IMAGE_SLOT"
+    exit 1
+fi
+
+echo "Downloading" $FILE_NAME "to" $FLASH_OFFSET
+
+if [ ! -f $FILE_NAME ]; then
+    echo "File " $FILE_NAME "not found"
+    exit 1
+fi
+
+# XXX for some reason JLinkExe overwrites flash at offset 0 when
+# downloading somewhere in the flash. So need to figure out how to tell it
+# not to do that, or report failure if gdb fails to write this file
+#
+echo "shell /bin/sh -c 'trap \"\" 2;openocd -s $BSP_PATH -f cmsis-dap.cfg -c \"$EXTRA_JTAG_CMD\" -f nrf52.cfg' &" > $GDB_CMD_FILE
+echo "target remote localhost:3333" >> $GDB_CMD_FILE
+echo "monitor reset halt" >> $GDB_CMD_FILE
+echo "monitor flash write_image erase $FILE_NAME $FLASH_OFFSET" >> $GDB_CMD_FILE
+echo "monitor reset run" >> $GDB_CMD_FILE
+echo "monitor shutdown" >> $GDB_CMD_FILE
+echo "quit" >> $GDB_CMD_FILE
+
+msgs=`arm-none-eabi-gdb -x $GDB_CMD_FILE 2>&1`
+echo $msgs > .gdb_out
+
+rm $GDB_CMD_FILE
+
+#cat > $JLINK_SCRIPT <<EOF
+#w 4001e504 1
+#loadbin $FILE_NAME,$FLASH_OFFSET
+#q
+#EOF
+
+#msgs=`JLinkExe -device nRF52 -speed 4000 -if SWD $JLINK_SCRIPT`
+
+# Echo output from script run, so newt can show it if things go wrong.
+echo $msgs
+#rm $JLINK_SCRIPT
+
+error=`echo $msgs | grep error | grep -v Ignoring`
+if [ -n "$error" ]; then
+    exit 1
+fi
+
+error=`echo $msgs | grep -i failed`
+if [ -n "$error" ]; then
+    exit 1
+fi
+
+error=`echo $msgs | grep -i "unknown / supported"`
+if [ -n "$error" ]; then
+    exit 1
+fi
+
+error=`echo $msgs | grep -i "not found"`
+if [ -n "$error" ]; then
+    exit 1
+fi
+
+exit 0

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/rb-nano2_no_boot.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/rb-nano2_no_boot.ld b/hw/bsp/rb-nano2/rb-nano2_no_boot.ld
new file mode 100755
index 0000000..e2fb5a8
--- /dev/null
+++ b/hw/bsp/rb-nano2/rb-nano2_no_boot.ld
@@ -0,0 +1,191 @@
+/* Linker script for Nordic Semiconductor nRF5 devices
+ *
+ * Version: Sourcery G++ 4.5-1
+ * Support: https://support.codesourcery.com/GNUToolchain/
+ *
+ * Copyright (c) 2007, 2008, 2009, 2010 CodeSourcery, Inc.
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions.  No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x80000
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x10000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __HeapBase
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ *   __bssnz_start__
+ *   __bssnz_end__
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+    .text :
+    {
+        __isr_vector_start = .;
+        KEEP(*(.isr_vector))
+        __isr_vector_end = .;
+        *(.text*)
+
+        KEEP(*(.init))
+        KEEP(*(.fini))
+
+        /* .ctors */
+        *crtbegin.o(.ctors)
+        *crtbegin?.o(.ctors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+        *(SORT(.ctors.*))
+        *(.ctors)
+
+        /* .dtors */
+        *crtbegin.o(.dtors)
+        *crtbegin?.o(.dtors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+        *(SORT(.dtors.*))
+        *(.dtors)
+
+        *(.rodata*)
+
+        *(.eh_frame*)
+        . = ALIGN(4);
+    } > FLASH
+
+
+    .ARM.extab :
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+        . = ALIGN(4);
+    } > FLASH
+
+    __exidx_start = .;
+    .ARM.exidx :
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+        . = ALIGN(4);
+    } > FLASH
+    __exidx_end = .;
+
+    __etext = .;
+
+    .vector_relocation :
+    {
+        . = ALIGN(4);
+        __vector_tbl_reloc__ = .;
+        . = . + (__isr_vector_end - __isr_vector_start);
+        . = ALIGN(4);
+    } > RAM
+
+    .data : AT (__etext)
+    {
+        __data_start__ = .;
+        *(vtable)
+        *(.data*)
+
+        . = ALIGN(4);
+        /* preinit data */
+        PROVIDE_HIDDEN (__preinit_array_start = .);
+        *(.preinit_array)
+        PROVIDE_HIDDEN (__preinit_array_end = .);
+
+        . = ALIGN(4);
+        /* init data */
+        PROVIDE_HIDDEN (__init_array_start = .);
+        *(SORT(.init_array.*))
+        *(.init_array)
+        PROVIDE_HIDDEN (__init_array_end = .);
+
+
+        . = ALIGN(4);
+        /* finit data */
+        PROVIDE_HIDDEN (__fini_array_start = .);
+        *(SORT(.fini_array.*))
+        *(.fini_array)
+        PROVIDE_HIDDEN (__fini_array_end = .);
+
+        *(.jcr)
+        . = ALIGN(4);
+        /* All data end */
+        __data_end__ = .;
+    } > RAM
+
+    /* Non-zeroed BSS.  This section is similar to BSS, with the following
+     * caveat:
+     *    1. It does not get zeroed at init-time.
+     */
+    .bssnz :
+    {
+        . = ALIGN(4);
+        __bssnz_start__ = .;
+        *(.bss.core.nz*)
+        . = ALIGN(4);
+        __bssnz_end__ = .;
+    } > RAM
+
+    .bss :
+    {
+        . = ALIGN(4);
+        __bss_start__ = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4);
+        __bss_end__ = .;
+    } > RAM
+
+    /* Heap starts after BSS */
+    __HeapBase = .;
+
+    /* .stack_dummy section doesn't contains any symbols. It is only
+     * used for linker to calculate size of stack sections, and assign
+     * values to stack symbols later */
+    .stack_dummy (COPY):
+    {
+        *(.stack*)
+    } > RAM
+
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    __StackLimit = __StackTop - SIZEOF(.stack_dummy);
+    PROVIDE(__stack = __StackTop);
+
+    /* Top of head is the bottom of the stack */
+    __HeapLimit = __StackLimit;
+
+    /* Check if data + heap + stack exceeds RAM limit */
+    ASSERT(__HeapBase <= __HeapLimit, "region RAM overflowed with stack")
+}
+

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/split-rb-nano2.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/split-rb-nano2.ld b/hw/bsp/rb-nano2/split-rb-nano2.ld
new file mode 100755
index 0000000..ebfac21
--- /dev/null
+++ b/hw/bsp/rb-nano2/split-rb-nano2.ld
@@ -0,0 +1,208 @@
+/* Linker script for Nordic Semiconductor nRF5 devices
+ *
+ * Version: Sourcery G++ 4.5-1
+ * Support: https://support.codesourcery.com/GNUToolchain/
+ *
+ * Copyright (c) 2007, 2008, 2009, 2010 CodeSourcery, Inc.
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions.  No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+
+MEMORY
+{
+  FLASH (rx) : ORIGIN =  0x00042000, LENGTH = 0x3a000
+  RAM  (rwx) : ORIGIN =  0x20000000, LENGTH = 0x10000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __HeapBase
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ *   __bssnz_start__
+ *   __bssnz_end__
+ */
+ENTRY(Reset_Handler_split)
+
+SECTIONS
+{
+    .imghdr (NOLOAD):
+    {
+        . = . + 0x20;
+    } > FLASH
+
+    .text :
+    {
+        __split_isr_vector_start = .;
+        KEEP(*(.isr_vector_split))
+        __split_isr_vector_end = .;
+        *(.text*)
+
+        KEEP(*(.init))
+        KEEP(*(.fini))
+
+        /* .ctors */
+        *crtbegin.o(.ctors)
+        *crtbegin?.o(.ctors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+        *(SORT(.ctors.*))
+        *(.ctors)
+
+        /* .dtors */
+        *crtbegin.o(.dtors)
+        *crtbegin?.o(.dtors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+        *(SORT(.dtors.*))
+        *(.dtors)
+
+        *(.rodata*)
+
+        *(.eh_frame*)
+        . = ALIGN(4);
+    } > FLASH
+
+
+    .ARM.extab : ALIGN(4)
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+    } > FLASH
+
+    .ARM.extab :
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+        . = ALIGN(4);
+    } > FLASH
+
+    __exidx_start = .;
+    .ARM.exidx :
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+        . = ALIGN(4);
+    } > FLASH
+    __exidx_end = .;
+
+    __etext = .;
+
+    /* save RAM used by the split image. This assumes that 
+     * the loader uses all the RAM up to its HeapBase  */
+    .loader_ram_contents :
+    {
+        _loader_ram_start = .;
+
+ 	/* this symbol comes from the loader linker */
+	. = . + (ABSOLUTE(__HeapBase_loader) - _loader_ram_start);
+        _loader_ram_end = .;
+    } > RAM
+
+    .data : AT (__etext)
+    {
+        __data_start__ = .;
+        *(.data*)
+
+        . = ALIGN(4);
+        /* preinit data */
+        PROVIDE_HIDDEN (__preinit_array_start = .);
+        *(.preinit_array)
+        PROVIDE_HIDDEN (__preinit_array_end = .);
+
+        . = ALIGN(4);
+        /* init data */
+        PROVIDE_HIDDEN (__init_array_start = .);
+        *(SORT(.init_array.*))
+        *(.init_array)
+        PROVIDE_HIDDEN (__init_array_end = .);
+
+        . = ALIGN(4);
+        /* finit data */
+        PROVIDE_HIDDEN (__fini_array_start = .);
+        *(SORT(.fini_array.*))
+        *(.fini_array)
+        PROVIDE_HIDDEN (__fini_array_end = .);
+
+        *(.jcr)
+        . = ALIGN(4);
+        /* All data end */
+        __data_end__ = .;
+    } > RAM
+
+    /* Non-zeroed BSS.  This section is similar to BSS, with the following two
+     * caveats:
+     *    1. It does not get zeroed at init-time.
+     *    2. You cannot use it as source memory for EasyDMA.
+     *
+     * This section exists because of a hardware defect; see errata 33 and 34
+     * in nrf52 errata sheet.
+     */
+    .bssnz :
+    {
+        . = ALIGN(4);
+        __bssnz_start__ = .;
+        *(.bss.core.nz*)
+        . = ALIGN(4);
+        __bssnz_end__ = .;
+    } > RAM
+
+    .bss :
+    {
+        . = ALIGN(4);
+        __bss_start__ = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4);
+        __bss_end__ = .;
+    } > RAM
+
+    /* Heap starts after BSS */
+    __HeapBase = .;
+
+    /* .stack_dummy section doesn't contains any symbols. It is only
+     * used for linker to calculate size of stack sections, and assign
+     * values to stack symbols later */
+    .stack_dummy (COPY):
+    {
+        *(.stack*)
+    } > RAM
+
+    _ram_start = ORIGIN(RAM);
+
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    __StackLimit = __StackTop - SIZEOF(.stack_dummy);
+    PROVIDE(__stack = __StackTop);
+
+    /* Top of head is the bottom of the stack */
+    __HeapLimit = __StackLimit;
+
+    /* Check if data + heap + stack exceeds RAM limit */
+    ASSERT(__HeapBase <= __HeapLimit, "region RAM overflowed with stack")
+}
+

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/src/arch/cortex_m4/gcc_startup_nrf52.s
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/src/arch/cortex_m4/gcc_startup_nrf52.s b/hw/bsp/rb-nano2/src/arch/cortex_m4/gcc_startup_nrf52.s
new file mode 100755
index 0000000..54b76ad
--- /dev/null
+++ b/hw/bsp/rb-nano2/src/arch/cortex_m4/gcc_startup_nrf52.s
@@ -0,0 +1,294 @@
+/*
+Copyright (c) 2015, Nordic Semiconductor ASA
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of Nordic Semiconductor ASA nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+NOTE: Template files (including this one) are application specific and therefore
+expected to be copied into the application project folder prior to its use!
+*/
+
+    .syntax unified
+    .arch armv7-m
+
+    .section .stack
+    .align 3
+    .equ    Stack_Size, 432
+    .globl    __StackTop
+    .globl    __StackLimit
+__StackLimit:
+    .space    Stack_Size
+    .size __StackLimit, . - __StackLimit
+__StackTop:
+    .size __StackTop, . - __StackTop
+
+    .section .heap
+    .align 3
+#ifdef __HEAP_SIZE
+    .equ    Heap_Size, __HEAP_SIZE
+#else
+    .equ    Heap_Size, 0
+#endif
+    .globl    __HeapBase
+    .globl    __HeapLimit
+__HeapBase:
+    .if    Heap_Size
+    .space    Heap_Size
+    .endif
+    .size __HeapBase, . - __HeapBase
+__HeapLimit:
+    .size __HeapLimit, . - __HeapLimit
+
+    .section .isr_vector
+    .align 2
+    .globl __isr_vector
+__isr_vector:
+    .long    __StackTop            /* Top of Stack */
+    .long   Reset_Handler               /* Reset Handler */
+    .long   NMI_Handler                 /* NMI Handler */
+    .long   HardFault_Handler           /* Hard Fault Handler */
+    .long   0                           /* Reserved */
+    .long   0                           /* Reserved */
+    .long   0                           /* Reserved */
+    .long   0                           /* Reserved */
+    .long   0                           /* Reserved */
+    .long   0                           /* Reserved */
+    .long   0                           /* Reserved */
+    .long   SVC_Handler                 /* SVCall Handler */
+    .long   0                           /* Reserved */
+    .long   0                           /* Reserved */
+    .long   PendSV_Handler              /* PendSV Handler */
+    .long   SysTick_Handler             /* SysTick Handler */
+
+  /* External Interrupts */
+    .long   POWER_CLOCK_IRQHandler
+    .long   RADIO_IRQHandler
+    .long   UARTE0_UART0_IRQHandler
+    .long   SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler
+    .long   SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler
+    .long   NFCT_IRQHandler
+    .long   GPIOTE_IRQHandler
+    .long   SAADC_IRQHandler
+    .long   TIMER0_IRQHandler
+    .long   TIMER1_IRQHandler
+    .long   TIMER2_IRQHandler
+    .long   RTC0_IRQHandler
+    .long   TEMP_IRQHandler
+    .long   RNG_IRQHandler
+    .long   ECB_IRQHandler
+    .long   CCM_AAR_IRQHandler
+    .long   WDT_IRQHandler
+    .long   RTC1_IRQHandler
+    .long   QDEC_IRQHandler
+    .long   COMP_LPCOMP_IRQHandler
+    .long   SWI0_EGU0_IRQHandler
+    .long   SWI1_EGU1_IRQHandler
+    .long   SWI2_EGU2_IRQHandler
+    .long   SWI3_EGU3_IRQHandler
+    .long   SWI4_EGU4_IRQHandler
+    .long   SWI5_EGU5_IRQHandler
+    .long   TIMER3_IRQHandler
+    .long   TIMER4_IRQHandler
+    .long   PWM0_IRQHandler
+    .long   PDM_IRQHandler
+    .long   0                         /*Reserved */
+    .long   0                         /*Reserved */
+    .long   MWU_IRQHandler
+    .long   PWM1_IRQHandler
+    .long   PWM2_IRQHandler
+    .long   SPIM2_SPIS2_SPI2_IRQHandler
+    .long   RTC2_IRQHandler
+    .long   I2S_IRQHandler
+
+    .size    __isr_vector, . - __isr_vector
+
+/* Reset Handler */
+
+    .text
+    .thumb
+    .thumb_func
+    .align 1
+    .globl    Reset_Handler
+    .type    Reset_Handler, %function
+Reset_Handler:
+    .fnstart
+
+    /* This is called but current_slot is in the data section so it is
+     * overwritten. its only called here to ensure that the global and this
+     * function are linked into the loader */
+    BL      boot_set_image_slot_split
+
+/*     Loop to copy data from read only memory to RAM. The ranges
+ *      of copy from/to are specified by following symbols evaluated in
+ *      linker script.
+ *      __etext: End of code section, i.e., begin of data sections to copy from.
+ *      __data_start__/__data_end__: RAM address range that data should be
+ *      copied to. Both must be aligned to 4 bytes boundary.  */
+
+    ldr    r1, =__etext
+    ldr    r2, =__data_start__
+    ldr    r3, =__data_end__
+
+    subs    r3, r2
+    ble     .LC0
+
+.LC1:
+    subs    r3, 4
+    ldr    r0, [r1,r3]
+    str    r0, [r2,r3]
+    bgt    .LC1
+
+.LC0:
+
+    LDR     R0, =__HeapBase
+    LDR     R1, =__HeapLimit
+    BL      _sbrkInit
+
+    LDR     R0, =SystemInit
+    BLX     R0
+
+    LDR     R0, =_start
+    BX      R0
+
+    .pool
+    .cantunwind
+    .fnend
+    .size   Reset_Handler,.-Reset_Handler
+
+    .section ".text"
+
+
+/* Dummy Exception Handlers (infinite loops which can be modified) */
+
+    .weak   NMI_Handler
+    .type   NMI_Handler, %function
+NMI_Handler:
+    B       .
+    .size   NMI_Handler, . - NMI_Handler
+
+
+    .weak   HardFault_Handler
+    .type   HardFault_Handler, %function
+HardFault_Handler:
+    B       .
+    .size   HardFault_Handler, . - HardFault_Handler
+
+
+    .weak   MemoryManagement_Handler
+    .type   MemoryManagement_Handler, %function
+MemoryManagement_Handler:
+    B       .
+    .size   MemoryManagement_Handler, . - MemoryManagement_Handler
+
+
+    .weak   BusFault_Handler
+    .type   BusFault_Handler, %function
+BusFault_Handler:
+    B       .
+    .size   BusFault_Handler, . - BusFault_Handler
+
+
+    .weak   UsageFault_Handler
+    .type   UsageFault_Handler, %function
+UsageFault_Handler:
+    B       .
+    .size   UsageFault_Handler, . - UsageFault_Handler
+
+
+    .weak   SVC_Handler
+    .type   SVC_Handler, %function
+SVC_Handler:
+    B       .
+    .size   SVC_Handler, . - SVC_Handler
+
+
+    .weak   PendSV_Handler
+    .type   PendSV_Handler, %function
+PendSV_Handler:
+    B       .
+    .size   PendSV_Handler, . - PendSV_Handler
+
+
+    .weak   SysTick_Handler
+    .type   SysTick_Handler, %function
+SysTick_Handler:
+    B       .
+    .size   SysTick_Handler, . - SysTick_Handler
+
+
+/* IRQ Handlers */
+
+    .globl  Default_Handler
+    .type   Default_Handler, %function
+Default_Handler:
+    B       .
+    .size   Default_Handler, . - Default_Handler
+
+    .macro  IRQ handler
+    .weak   \handler
+    .set    \handler, Default_Handler
+    .endm
+
+    IRQ  POWER_CLOCK_IRQHandler
+    IRQ  RADIO_IRQHandler
+    IRQ  UARTE0_UART0_IRQHandler
+    IRQ  SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler
+    IRQ  SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler
+    IRQ  NFCT_IRQHandler
+    IRQ  GPIOTE_IRQHandler
+    IRQ  SAADC_IRQHandler
+    IRQ  TIMER0_IRQHandler
+    IRQ  TIMER1_IRQHandler
+    IRQ  TIMER2_IRQHandler
+    IRQ  RTC0_IRQHandler
+    IRQ  TEMP_IRQHandler
+    IRQ  RNG_IRQHandler
+    IRQ  ECB_IRQHandler
+    IRQ  CCM_AAR_IRQHandler
+    IRQ  WDT_IRQHandler
+    IRQ  RTC1_IRQHandler
+    IRQ  QDEC_IRQHandler
+    IRQ  COMP_LPCOMP_IRQHandler
+    IRQ  SWI0_EGU0_IRQHandler
+    IRQ  SWI1_EGU1_IRQHandler
+    IRQ  SWI2_EGU2_IRQHandler
+    IRQ  SWI3_EGU3_IRQHandler
+    IRQ  SWI4_EGU4_IRQHandler
+    IRQ  SWI5_EGU5_IRQHandler
+    IRQ  TIMER3_IRQHandler
+    IRQ  TIMER4_IRQHandler
+    IRQ  PWM0_IRQHandler
+    IRQ  PDM_IRQHandler
+    IRQ  MWU_IRQHandler
+    IRQ  PWM1_IRQHandler
+    IRQ  PWM2_IRQHandler
+    IRQ  SPIM2_SPIS2_SPI2_IRQHandler
+    IRQ  RTC2_IRQHandler
+    IRQ  I2S_IRQHandler
+
+  .end

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/src/arch/cortex_m4/gcc_startup_nrf52_split.s
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/src/arch/cortex_m4/gcc_startup_nrf52_split.s b/hw/bsp/rb-nano2/src/arch/cortex_m4/gcc_startup_nrf52_split.s
new file mode 100755
index 0000000..26bb3a8
--- /dev/null
+++ b/hw/bsp/rb-nano2/src/arch/cortex_m4/gcc_startup_nrf52_split.s
@@ -0,0 +1,152 @@
+/*
+Copyright (c) 2015, Nordic Semiconductor ASA
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of Nordic Semiconductor ASA nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+NOTE: Template files (including this one) are application specific and therefore
+expected to be copied into the application project folder prior to its use!
+*/
+
+    .syntax unified
+    .arch armv7-m
+    .section .stack
+    .align 3
+    .equ    Stack_Size, 432
+    .globl    __StackTop
+    .globl    __StackLimit
+__StackLimit:
+    .space    Stack_Size
+    .size __StackLimit, . - __StackLimit
+__StackTop:
+    .size __StackTop, . - __StackTop
+
+    .section .heap
+    .align 3
+#ifdef __HEAP_SIZE
+    .equ    Heap_Size, __HEAP_SIZE
+#else
+    .equ    Heap_Size, 0
+#endif
+    .globl    __HeapBase
+    .globl    __HeapLimit
+__HeapBase:
+    .if    Heap_Size
+    .space    Heap_Size
+    .endif
+    .size __HeapBase, . - __HeapBase
+__HeapLimit:
+    .size __HeapLimit, . - __HeapLimit
+
+    .section .isr_vector_split
+    .align 2
+    .globl __isr_vector_split
+__isr_vector_split:
+    .long    __StackTop            /* Top of Stack */
+    .long   Reset_Handler_split               /* Reset Handler */
+
+    .size    __isr_vector_split, . - __isr_vector_split
+
+/* Reset Handler */
+
+    .text
+    .thumb
+    .thumb_func
+    .align 1
+    .globl    Reset_Handler_split
+    .type    Reset_Handler_split, %function
+Reset_Handler_split:
+    .fnstart
+
+
+/*     Loop to copy data from read only memory to RAM. The ranges
+ *      of copy from/to are specified by following symbols evaluated in
+ *      linker script.
+ *      __etext: End of code section, i.e., begin of data sections to copy from.
+ *      __data_start__/__data_end__: RAM address range that data should be
+ *      copied to. Both must be aligned to 4 bytes boundary.  */
+
+    ldr    r1, =__etext
+    ldr    r2, =__data_start__
+    ldr    r3, =__data_end__
+
+    subs    r3, r2
+    ble     .LC0
+
+.LC1:
+    subs    r3, 4
+    ldr    r0, [r1,r3]
+    str    r0, [r2,r3]
+    bgt    .LC1
+
+.LC0:
+    ldr    r1, =__etext_loader
+    ldr    r2, =__data_start___loader
+    ldr    r3, =__data_end___loader
+
+    subs    r3, r2
+    ble     .LC2
+
+.LC3:
+    subs    r3, 4
+    ldr    r0, [r1,r3]
+    str    r0, [r2,r3]
+    bgt    .LC3
+.LC2:
+
+    subs    r0, r0
+    ldr    r2, =__bss_start___loader
+    ldr    r3, =__bss_end___loader
+
+    subs    r3, r2
+    ble     .LC4
+
+.LC5:
+    subs    r3, 4
+    str    r0, [r2,r3]
+    bgt    .LC5
+.LC4:
+
+    LDR     R0, =__HeapBase
+    LDR     R1, =__HeapLimit
+    BL      _sbrkInit
+
+    BL      boot_set_image_slot_split
+
+    LDR     R0, =SystemInit
+    BLX     R0
+    LDR     R0, =_start
+    BX      R0
+
+    .pool
+    .cantunwind
+    .fnend
+    .size   Reset_Handler_split,.-Reset_Handler_split
+
+    .section ".text"
+  .end

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/src/hal_bsp.c
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/src/hal_bsp.c b/hw/bsp/rb-nano2/src/hal_bsp.c
new file mode 100644
index 0000000..242c862
--- /dev/null
+++ b/hw/bsp/rb-nano2/src/hal_bsp.c
@@ -0,0 +1,65 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+#include <stdint.h>
+#include <stddef.h>
+
+#include "bsp/bsp.h"
+#include <hal/hal_bsp.h>
+#include "mcu/nrf52_hal.h"
+
+/*
+ * What memory to include in coredump.
+ */
+static const struct bsp_mem_dump dump_cfg[] = {
+    [0] = {
+        .bmd_start = &_ram_start,
+        .bmd_size = RAM_SIZE
+    }
+};
+
+const struct hal_flash *
+bsp_flash_dev(uint8_t id)
+{
+    /*
+     * Internal flash mapped to id 0.
+     */
+    if (id != 0) {
+        return NULL;
+    }
+    return &nrf52k_flash_dev;
+}
+
+const struct bsp_mem_dump *
+bsp_core_dump(int *area_cnt)
+{
+    *area_cnt = sizeof(dump_cfg) / sizeof(dump_cfg[0]);
+    return dump_cfg;
+}
+
+uint16_t
+bsp_get_refmv(void *cfgdata)
+{
+    return (2800);
+}
+
+int
+hal_bsp_power_state(int state)
+{
+    return (0);
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/src/libc_stubs.c
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/src/libc_stubs.c b/hw/bsp/rb-nano2/src/libc_stubs.c
new file mode 100644
index 0000000..b1b6b8b
--- /dev/null
+++ b/hw/bsp/rb-nano2/src/libc_stubs.c
@@ -0,0 +1,84 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+#include <hal/hal_system.h>
+#include <hal/hal_bsp.h>
+
+int _close(int fd);
+int _fstat(int fd, void *s);
+void _exit(int s);
+int _kill(int pid, int sig);
+int _write(int fd, void *b, int nb);
+int _isatty(int c);
+int _lseek(int fd, int off, int w);
+int _read(int fd, void *b, int nb);
+int _getpid(void);
+
+int
+_close(int fd)
+{
+    return -1;
+}
+
+int
+_fstat(int fd, void *s)
+{
+    return -1;
+}
+
+
+void
+_exit(int s)
+{
+    system_reset();
+}
+
+int
+_kill(int pid, int sig)
+{
+    return -1;
+}
+
+int
+_write(int fd, void *b, int nb)
+{
+    return -1;
+}
+
+int
+_isatty(int c)
+{
+    return -1;
+}
+
+int
+_lseek(int fd, int off, int w)
+{
+    return -1;
+}
+
+int
+_read(int fd, void *b, int nb)
+{
+    return -1;
+}
+
+int
+_getpid(void) {
+    return -1;
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/src/os_bsp.c
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/src/os_bsp.c b/hw/bsp/rb-nano2/src/os_bsp.c
new file mode 100644
index 0000000..1395116
--- /dev/null
+++ b/hw/bsp/rb-nano2/src/os_bsp.c
@@ -0,0 +1,72 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include <assert.h>
+#include <stdint.h>
+#include "os/os_cputime.h"
+#include "syscfg/syscfg.h"
+#include "sysflash/sysflash.h"
+#include "flash_map/flash_map.h"
+#include "hal/hal_bsp.h"
+#include "hal/hal_flash.h"
+#include "hal/hal_spi.h"
+#include "hal/hal_watchdog.h"
+#include "mcu/nrf52_hal.h"
+#include "uart/uart.h"
+#include "uart_hal/uart_hal.h"
+#include "os/os_dev.h"
+#include "bsp.h"
+
+#if MYNEWT_VAL(SPI_MASTER)
+#include "nrf_drv_spi.h"
+#endif
+#if MYNEWT_VAL(SPI_SLAVE)
+#include "nrf_drv_spis.h"
+#endif
+#include "nrf_drv_config.h"
+#include "app_util_platform.h"
+#include "nrf.h"
+#include "app_error.h"
+#include "nrf_drv_saadc.h"
+
+#if MYNEWT_VAL(UART_0)
+static struct uart_dev os_bsp_uart0;
+static const struct nrf52_uart_cfg os_bsp_uart0_cfg = {
+    .suc_pin_tx = MYNEWT_VAL(UART_0_PIN_TX),
+    .suc_pin_rx = MYNEWT_VAL(UART_0_PIN_RX),
+    .suc_pin_rts = MYNEWT_VAL(UART_0_PIN_RTS),
+    .suc_pin_cts = MYNEWT_VAL(UART_0_PIN_CTS),
+};
+#endif
+
+void
+bsp_init(void)
+{
+    int rc;
+
+    /* Set cputime to count at 1 usec increments */
+    rc = os_cputime_init(MYNEWT_VAL(CLOCK_FREQ));
+    assert(rc == 0);
+
+#if MYNEWT_VAL(UART_0)
+    rc = os_dev_create((struct os_dev *) &os_bsp_uart0, "uart0",
+      OS_DEV_INIT_PRIMARY, 0, uart_hal_init, (void *)&os_bsp_uart0_cfg);
+    assert(rc == 0);
+#endif
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/src/sbrk.c
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/src/sbrk.c b/hw/bsp/rb-nano2/src/sbrk.c
new file mode 100644
index 0000000..242f11b
--- /dev/null
+++ b/hw/bsp/rb-nano2/src/sbrk.c
@@ -0,0 +1,59 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include <hal/hal_bsp.h>
+
+/* put these in the data section so they are not cleared by _start */
+static char *sbrkBase __attribute__ ((section (".data")));
+static char *sbrkLimit __attribute__ ((section (".data")));
+static char *brk __attribute__ ((section (".data")));
+
+void
+_sbrkInit(char *base, char *limit) {
+    sbrkBase = base;
+    sbrkLimit = limit;
+    brk = base;
+}
+
+void *
+_sbrk(int incr)
+{
+    void *prev_brk;
+
+    if (incr < 0) {
+        /* Returning memory to the heap. */
+        incr = -incr;
+        if (brk - incr < sbrkBase) {
+            prev_brk = (void *)-1;
+        } else {
+            prev_brk = brk;
+            brk -= incr;
+        }
+    } else {
+        /* Allocating memory from the heap. */
+        if (sbrkLimit - brk >= incr) {
+            prev_brk = brk;
+            brk += incr;
+        } else {
+            prev_brk = (void *)-1;
+        }
+    }
+
+    return prev_brk;
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/src/system_nrf52.c
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/src/system_nrf52.c b/hw/bsp/rb-nano2/src/system_nrf52.c
new file mode 100644
index 0000000..86af900
--- /dev/null
+++ b/hw/bsp/rb-nano2/src/system_nrf52.c
@@ -0,0 +1,183 @@
+/* Copyright (c) 2015, Nordic Semiconductor ASA
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice, this
+ *     list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ *   * Neither the name of Nordic Semiconductor ASA nor the names of its
+ *     contributors may be used to endorse or promote products derived from
+ *     this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "bsp/cmsis_nvic.h"
+#include "nrf.h"
+#include "system_nrf52.h"
+
+/*lint ++flb "Enter library region" */
+
+#define __SYSTEM_CLOCK_16M      (16000000UL)
+#define __SYSTEM_CLOCK_64M      (64000000UL)
+
+static bool ftpan_32(void);
+static bool ftpan_37(void);
+static bool ftpan_36(void);
+
+
+#if defined ( __CC_ARM )
+    uint32_t SystemCoreClock __attribute__((used)) = __SYSTEM_CLOCK_64M;
+#elif defined ( __ICCARM__ )
+    __root uint32_t SystemCoreClock = __SYSTEM_CLOCK_64M;
+#elif defined   ( __GNUC__ )
+    uint32_t SystemCoreClock __attribute__((used)) = __SYSTEM_CLOCK_64M;
+#endif
+
+void SystemCoreClockUpdate(void)
+{
+    SystemCoreClock = __SYSTEM_CLOCK_64M;
+}
+
+void SystemInit(void)
+{
+    /* Workaround for FTPAN-32 "DIF: Debug session automatically enables TracePort pins" found at Product Anomaly document
+       for your device located at https://www.nordicsemi.com/ */
+    if (ftpan_32()){
+        CoreDebug->DEMCR &= ~CoreDebug_DEMCR_TRCENA_Msk;
+    }
+
+    /* Workaround for FTPAN-37 "AMLI: EasyDMA is slow with Radio, ECB, AAR and CCM." found at Product Anomaly document
+       for your device located at https://www.nordicsemi.com/  */
+    if (ftpan_37()){
+        *(volatile uint32_t *)0x400005A0 = 0x3;
+    }
+
+    /* Workaround for FTPAN-36 "CLOCK: Some registers are not reset when expected." found at Product Anomaly document
+       for your device located at https://www.nordicsemi.com/  */
+    if (ftpan_36()){
+        NRF_CLOCK->EVENTS_DONE = 0;
+        NRF_CLOCK->EVENTS_CTTO = 0;
+    }
+
+    /* Enable the FPU if the compiler used floating point unit instructions. __FPU_USED is a MACRO defined by the
+     * compiler. Since the FPU consumes energy, remember to disable FPU use in the compiler if floating point unit
+     * operations are not used in your code. */
+    #if (__FPU_USED == 1)
+        SCB->CPACR |= (3UL << 20) | (3UL << 22);
+        __DSB();
+        __ISB();
+    #endif
+
+    /* Configure NFCT pins as GPIOs if NFCT is not to be used in your code. If CONFIG_NFCT_PINS_AS_GPIOS is not defined,
+       two GPIOs (see Product Specification to see which ones) will be reserved for NFC and will not be available as
+       normal GPIOs. */
+    #if defined (CONFIG_NFCT_PINS_AS_GPIOS)
+        if ((NRF_UICR->NFCPINS & UICR_NFCPINS_PROTECT_Msk) == (UICR_NFCPINS_PROTECT_NFC << UICR_NFCPINS_PROTECT_Pos)){
+            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
+            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
+            NRF_UICR->NFCPINS &= ~UICR_NFCPINS_PROTECT_Msk;
+            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
+            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
+            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
+            NVIC_SystemReset();
+        }
+    #endif
+
+    /* Configure GPIO pads as pPin Reset pin if Pin Reset capabilities desired. If CONFIG_GPIO_AS_PINRESET is not
+      defined, pin reset will not be available. One GPIO (see Product Specification to see which one) will then be
+      reserved for PinReset and not available as normal GPIO. */
+    #if defined (CONFIG_GPIO_AS_PINRESET)
+        if (((NRF_UICR->PSELRESET[0] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos)) ||
+            ((NRF_UICR->PSELRESET[0] & UICR_PSELRESET_CONNECT_Msk) != (UICR_PSELRESET_CONNECT_Connected << UICR_PSELRESET_CONNECT_Pos))){
+            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
+            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
+            NRF_UICR->PSELRESET[0] = 21;
+            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
+            NRF_UICR->PSELRESET[1] = 21;
+            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
+            NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
+            while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}
+            NVIC_SystemReset();
+        }
+    #endif
+
+    /* Enable SWO trace functionality. If ENABLE_SWO is not defined, SWO pin will be used as GPIO (see Product
+       Specification to see which one). */
+    #if defined (ENABLE_SWO)
+        CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
+        NRF_CLOCK->TRACECONFIG |= CLOCK_TRACECONFIG_TRACEMUX_Serial << CLOCK_TRACECONFIG_TRACEMUX_Pos;
+    #endif
+
+    /* Enable Trace functionality. If ENABLE_TRACE is not defined, TRACE pins will be used as GPIOs (see Product
+       Specification to see which ones). */
+    #if defined (ENABLE_TRACE)
+        CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
+        NRF_CLOCK->TRACECONFIG |= CLOCK_TRACECONFIG_TRACEMUX_Parallel << CLOCK_TRACECONFIG_TRACEMUX_Pos;
+    #endif
+
+    SystemCoreClockUpdate();
+
+    NVIC_Relocate();
+}
+
+static bool ftpan_32(void)
+{
+    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0))
+    {
+        if ((((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30) && (((*(uint32_t *)0xF0000FEC) & 0x000000F0) == 0x0))
+        {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+static bool ftpan_37(void)
+{
+    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0))
+    {
+        if ((((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30) && (((*(uint32_t *)0xF0000FEC) & 0x000000F0) == 0x0))
+        {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+static bool ftpan_36(void)
+{
+    if ((((*(uint32_t *)0xF0000FE0) & 0x000000FF) == 0x6) && (((*(uint32_t *)0xF0000FE4) & 0x0000000F) == 0x0))
+    {
+        if ((((*(uint32_t *)0xF0000FE8) & 0x000000F0) == 0x30) && (((*(uint32_t *)0xF0000FEC) & 0x000000F0) == 0x0))
+        {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+
+
+/*lint --flb "Leave library region" */

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/c117b7b2/hw/bsp/rb-nano2/syscfg.yml
----------------------------------------------------------------------
diff --git a/hw/bsp/rb-nano2/syscfg.yml b/hw/bsp/rb-nano2/syscfg.yml
new file mode 100644
index 0000000..f79771e
--- /dev/null
+++ b/hw/bsp/rb-nano2/syscfg.yml
@@ -0,0 +1,90 @@
+# Package: hw/bsp/rb-nano2
+
+syscfg.defs:
+    BSP_NRF52:
+        description: 'TBD'
+        value: 1
+
+    CLOCK_FREQ:
+        description: 'TBD'
+        value:  1000000
+
+    OS_CPUTIME_TIMER_NUM:
+        description: 'Timer to use for cputime'
+        value:  0
+
+    XTAL_32768:
+        description: 'TBD'
+        value: 1
+    ADC_0:
+        description: 'TBD'
+        value:  0
+    ADC_0_RESOLUTION:
+        description: 'TBD'
+        value: 'SAADC_CONFIG_RESOLUTION'
+    ADC_0_OVERSAMPLE:
+        description: 'TBD'
+        value: 'SAADC_CONFIG_OVERSAMPLE'
+    ADC_0_INTERRUPT_PRIORITY:
+        description: 'TBD'
+        value: 'SAADC_CONFIG_IRQ_PRIORITY'
+
+    UART_0:
+        description: 'TBD'
+        value: 1
+    UART_0_PIN_TX:
+        description: 'TBD'
+        value: 29
+    UART_0_PIN_RX:
+        description: 'TBD'
+        value: 30
+    UART_0_PIN_RTS:
+        description: 'TBD'
+        value: 2
+    UART_0_PIN_CTS:
+        description: 'TBD'
+        value: 28
+
+    SPI_MASTER:
+        description: 'TBD'
+        value:  0
+    SPI_SLAVE:
+        description: 'TBD'
+        value:  0
+
+    TIMER_0:
+        description: 'NRF52 Timer 0'
+        value:  1
+    TIMER_0_INTERRUPT_PRIORITY:
+        description: 'TBD'
+        value: '((1 << __NVIC_PRIO_BITS) - 1)'
+    TIMER_1:
+        description: 'NRF52 Timer 1'
+        value:  0
+    TIMER_1_INTERRUPT_PRIORITY:
+        description: 'TBD'
+        value: '((1 << __NVIC_PRIO_BITS) - 1)'
+    TIMER_2:
+        description: 'NRF52 Timer 2'
+        value:  0
+    TIMER_2_INTERRUPT_PRIORITY:
+        description: 'TBD'
+        value: '((1 << __NVIC_PRIO_BITS) - 1)'
+    TIMER_3:
+        description: 'NRF52 Timer 3'
+        value:  0
+    TIMER_3_INTERRUPT_PRIORITY:
+        description: 'TBD'
+        value: '((1 << __NVIC_PRIO_BITS) - 1)'
+    TIMER_4:
+        description: 'NRF52 Timer 4'
+        value:  0
+    TIMER_4_INTERRUPT_PRIORITY:
+        description: 'TBD'
+        value: '((1 << __NVIC_PRIO_BITS) - 1)'
+
+syscfg.vals:
+    CONFIG_FCB_FLASH_AREA: FLASH_AREA_NFFS
+    REBOOT_LOG_FLASH_AREA: FLASH_AREA_REBOOT_LOG
+    NFFS_FLASH_AREA: FLASH_AREA_REBOOT_LOG
+    COREDUMP_FLASH_AREA: FLASH_AREA_IMAGE_1