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Posted to commits@mynewt.apache.org by we...@apache.org on 2016/12/26 20:48:32 UTC

[4/4] incubator-mynewt-core git commit: No jira ticket

No jira ticket

This is very, very initial BSP for the usbmkw41z. There is very limited HAL support and
the OS ticker will probably get changed as I did something simple for proof of concept.

Note that there is nothing in the devices directory in the SDK for this mcu. The reason
for this is that we currently do not have a good way of specifying which include paths
are used and there are identical files in each of the two devices currently in this
SDK. Thus, a number of the header files for this MCU have been moved to the mcu
specific directory (hw/mcu/nxp/mkw41z).


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/a2993a9f
Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/tree/a2993a9f
Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/diff/a2993a9f

Branch: refs/heads/develop
Commit: a2993a9f8c5b6329cf69d666cf9ac9278a82f370
Parents: 0a81b25
Author: William San Filippo <wi...@runtime.io>
Authored: Mon Dec 26 12:45:44 2016 -0800
Committer: William San Filippo <wi...@runtime.io>
Committed: Mon Dec 26 12:48:22 2016 -0800

----------------------------------------------------------------------
 hw/bsp/usbmkw41z/boot-mkw41z512.ld              |   197 +
 hw/bsp/usbmkw41z/bsp.yml                        |    60 +
 hw/bsp/usbmkw41z/include/bsp/bsp.h              |    47 +
 hw/bsp/usbmkw41z/include/bsp/cmsis_nvic.h       |    42 +
 hw/bsp/usbmkw41z/mkw41z512.ld                   |   186 +
 hw/bsp/usbmkw41z/no-boot-mkw41z512.ld           |   197 +
 hw/bsp/usbmkw41z/pkg.yml                        |    35 +
 .../src/arch/cortex_m0/gcc_startup_mkw41z.s     |   240 +
 hw/bsp/usbmkw41z/src/hal_bsp.c                  |    88 +
 hw/bsp/usbmkw41z/src/sbrk.c                     |    59 +
 hw/bsp/usbmkw41z/syscfg.yml                     |    35 +
 hw/bsp/usbmkw41z/usbkw41z_debug.sh              |    36 +
 hw/bsp/usbmkw41z/usbkw41z_download.sh           |    41 +
 hw/mcu/nxp/mkw41z/include/mcu/MKW41Z4.h         | 12979 +++++++++++++++++
 .../nxp/mkw41z/include/mcu/MKW41Z4_features.h   |  1719 +++
 hw/mcu/nxp/mkw41z/include/mcu/cortex_m0.h       |    41 +
 .../mkw41z/include/mcu/fsl_device_registers.h   |    56 +
 hw/mcu/nxp/mkw41z/include/mcu/mcu.h             |    38 +
 hw/mcu/nxp/mkw41z/include/mcu/mkw41z_hal.h      |    46 +
 hw/mcu/nxp/mkw41z/include/mcu/system_MKW41Z4.h  |   133 +
 hw/mcu/nxp/mkw41z/pkg.yml                       |    31 +
 hw/mcu/nxp/mkw41z/src/hal_gpio.c                |   161 +
 hw/mcu/nxp/mkw41z/src/hal_os_tick.c             |   104 +
 hw/mcu/nxp/mkw41z/src/hal_system.c              |    37 +
 hw/mcu/nxp/mkw41z/src/hal_watchdog.c            |    41 +
 hw/mcu/nxp/mkw41z/src/system_MKW41Z4.c          |   179 +
 26 files changed, 16828 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a2993a9f/hw/bsp/usbmkw41z/boot-mkw41z512.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/boot-mkw41z512.ld b/hw/bsp/usbmkw41z/boot-mkw41z512.ld
new file mode 100644
index 0000000..1f74b3d
--- /dev/null
+++ b/hw/bsp/usbmkw41z/boot-mkw41z512.ld
@@ -0,0 +1,197 @@
+/*
+** ###################################################################
+**     Processor:           MKW41Z
+**     Compiler:            GNU C Compiler
+**
+**     Abstract:
+**         Linker file for the GNU C Compiler
+**
+**     Copyright (c) 2015 Freescale Semiconductor, Inc.
+**     All rights reserved.
+**
+**     Redistribution and use in source and binary forms, with or without modification,
+**     are permitted provided that the following conditions are met:
+**
+**     o Redistributions of source code must retain the above copyright notice, this list
+**       of conditions and the following disclaimer.
+**
+**     o 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.
+**
+**     o Neither the name of Freescale Semiconductor, Inc. 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.
+**
+**     http:                 www.freescale.com
+**     mail:                 support@freescale.com
+**
+** ###################################################################
+*/
+OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/*
+ * NOTE: there are 16 bytes of flash configuration at address 0x400.
+ * The bootloader starts at 0 and is 24KB (0x6000). Thus, we need to subtract
+ * 0x410 from the total bootloader length and that is how we get 0x5BF0.
+ */
+MEMORY
+{
+  VECTOR_TBL (rx) : ORIGIN = 0x00000000, LENGTH = 0x100
+  FCF (rx) : ORIGIN = 0x00000400, LENGTH = 0x10
+  FLASH (rx) : ORIGIN = 0x00000410, LENGTH = 0x5BF0
+  RAM (rwx) : ORIGIN = 0x1FFF8000, LENGTH = 0x20000
+}
+
+/* Define output sections */
+SECTIONS
+{
+    .interrupts :
+    {
+        __isr_vector_start = .;
+        KEEP(*(.isr_vector))
+        __isr_vector_end = .;
+    } > VECTOR_TBL
+
+    .flash_config :
+    {
+        . = ALIGN(4);
+        KEEP(*(.FlashConfig))    /* Flash Configuration Field (FCF) */
+        . = ALIGN(4);
+    } > FCF
+
+    .text :
+    {
+        *(.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 = .;
+
+    /* Keep first in RAM, as well as in bootloader */
+    .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
+
+    .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/a2993a9f/hw/bsp/usbmkw41z/bsp.yml
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/bsp.yml b/hw/bsp/usbmkw41z/bsp.yml
new file mode 100644
index 0000000..2084335
--- /dev/null
+++ b/hw/bsp/usbmkw41z/bsp.yml
@@ -0,0 +1,60 @@
+#
+# 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_m0
+bsp.compiler: compiler/arm-none-eabi-m0
+bsp.linkerscript:
+    - "hw/bsp/usbmkw41z/no-boot-mkw41z512.ld"
+bsp.linkerscript.BOOT_LOADER.OVERWRITE:
+    - "hw/bsp/usbmkw41z/boot-mkw41z512.ld"
+bsp.part2linkerscript: "hw/bsp/usbmkw41z/split-usbkw41z.ld"
+bsp.downloadscript: "hw/bsp/usbmkw41z/usbkw41z_download.sh"
+bsp.debugscript: "hw/bsp/usbmkw41z/usbkw41z_debug.sh"
+
+bsp.flash_map:
+    areas:
+        # System areas.
+        FLASH_AREA_BOOTLOADER:
+            device: 0
+            offset: 0x00000000
+            size: 24kB
+        FLASH_AREA_IMAGE_0:
+            device: 0
+            offset: 0x0000A000
+            size: 228kB
+        FLASH_AREA_IMAGE_1:
+            device: 0
+            offset: 0x00043000
+            size: 228kB
+        FLASH_AREA_IMAGE_SCRATCH:
+            device: 0
+            offset: 0x0007C000
+            size: 8kB
+
+        # User areas.
+        FLASH_AREA_REBOOT_LOG:
+            user_id: 0
+            device: 0
+            offset: 0x00006000
+            size: 16kB
+        FLASH_AREA_NFFS:
+            user_id: 1
+            device: 0
+            offset: 0x0007E000
+            size: 8kB

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a2993a9f/hw/bsp/usbmkw41z/include/bsp/bsp.h
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/include/bsp/bsp.h b/hw/bsp/usbmkw41z/include/bsp/bsp.h
new file mode 100644
index 0000000..6d35ce5
--- /dev/null
+++ b/hw/bsp/usbmkw41z/include/bsp/bsp.h
@@ -0,0 +1,47 @@
+/*
+ * 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
+
+extern uint8_t _ram_start;
+#define RAM_SIZE        0x20000
+
+/* LED pins */
+#define LED_0           (35)    /* Port B, pin 3 */
+#define LED_1           (50)    /* Port B, pin 18 */
+#define LED_BLINK_PIN   (LED_0)
+
+/* UART info */
+#define CONSOLE_UART    "uart0"
+
+/* WWW: is this needed? */
+//#define NFFS_AREA_MAX    (8)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* H_BSP_H */

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a2993a9f/hw/bsp/usbmkw41z/include/bsp/cmsis_nvic.h
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/include/bsp/cmsis_nvic.h b/hw/bsp/usbmkw41z/include/bsp/cmsis_nvic.h
new file mode 100644
index 0000000..ee1c3ba
--- /dev/null
+++ b/hw/bsp/usbmkw41z/include/bsp/cmsis_nvic.h
@@ -0,0 +1,42 @@
+/*
+ * 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_CMSIS_NVIC_
+#define H_CMSIS_NVIC_
+
+#include <stdint.h>
+
+#include "mcu/MKW41Z4.h"
+
+/* The MKW41Z has 32 user interrupt vectors */
+#define NVIC_USER_IRQ_OFFSET  16
+#define NVIC_NUM_VECTORS      (NVIC_USER_IRQ_OFFSET + 32)
+
+#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/a2993a9f/hw/bsp/usbmkw41z/mkw41z512.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/mkw41z512.ld b/hw/bsp/usbmkw41z/mkw41z512.ld
new file mode 100644
index 0000000..b6f30b8
--- /dev/null
+++ b/hw/bsp/usbmkw41z/mkw41z512.ld
@@ -0,0 +1,186 @@
+/*
+** ###################################################################
+**     Processor:           MKW41Z
+**     Compiler:            GNU C Compiler
+**
+**     Abstract:
+**         Linker file for the GNU C Compiler
+**
+**     Copyright (c) 2015 Freescale Semiconductor, Inc.
+**     All rights reserved.
+**
+**     Redistribution and use in source and binary forms, with or without modification,
+**     are permitted provided that the following conditions are met:
+**
+**     o Redistributions of source code must retain the above copyright notice, this list
+**       of conditions and the following disclaimer.
+**
+**     o 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.
+**
+**     o Neither the name of Freescale Semiconductor, Inc. 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.
+**
+**     http:                 www.freescale.com
+**     mail:                 support@freescale.com
+**
+** ###################################################################
+*/
+OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* This linker script is used for images and thus contains an image header */
+_imghdr_size = 0x20;
+
+MEMORY
+{
+    FLASH (rx) : ORIGIN = 0x0000A000, LENGTH = 0x39000
+    RAM (rwx) : ORIGIN = 0x1FFF8000, LENGTH = 0x20000
+}
+
+/* Define output sections */
+SECTIONS
+{
+    .imghdr (NOLOAD):
+    {
+      . = . + _imghdr_size;
+    } > 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 = .;
+
+    /* Keep first in RAM, as well as in bootloader */
+    .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
+
+    .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/a2993a9f/hw/bsp/usbmkw41z/no-boot-mkw41z512.ld
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/no-boot-mkw41z512.ld b/hw/bsp/usbmkw41z/no-boot-mkw41z512.ld
new file mode 100644
index 0000000..8f2e0ad
--- /dev/null
+++ b/hw/bsp/usbmkw41z/no-boot-mkw41z512.ld
@@ -0,0 +1,197 @@
+/*
+** ###################################################################
+**     Processor:           MKW41Z
+**     Compiler:            GNU C Compiler
+**
+**     Abstract:
+**         Linker file for the GNU C Compiler
+**
+**     Copyright (c) 2015 Freescale Semiconductor, Inc.
+**     All rights reserved.
+**
+**     Redistribution and use in source and binary forms, with or without modification,
+**     are permitted provided that the following conditions are met:
+**
+**     o Redistributions of source code must retain the above copyright notice, this list
+**       of conditions and the following disclaimer.
+**
+**     o 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.
+**
+**     o Neither the name of Freescale Semiconductor, Inc. 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.
+**
+**     http:                 www.freescale.com
+**     mail:                 support@freescale.com
+**
+** ###################################################################
+*/
+OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/*
+ * NOTE: there are 16 bytes of flash configuration at address 0x400. Thus,
+ * the FCF section. Flash starts at 0xA000 since we there is a reboot log
+ * between 0 and 0xA000.
+ */
+MEMORY
+{
+  VECTOR_TBL (rx) : ORIGIN = 0x00000000, LENGTH = 0x100
+  FCF (rx) : ORIGIN = 0x00000400, LENGTH = 0x10
+  FLASH (rx) : ORIGIN = 0x0000A000, LENGTH = 0x39000
+  RAM (rwx) : ORIGIN = 0x1FFF8000, LENGTH = 0x20000
+}
+
+/* Define output sections */
+SECTIONS
+{
+    .interrupts :
+    {
+        __isr_vector_start = .;
+        KEEP(*(.isr_vector))
+        __isr_vector_end = .;
+    } > VECTOR_TBL
+
+    .flash_config :
+    {
+        . = ALIGN(4);
+        KEEP(*(.FlashConfig))    /* Flash Configuration Field (FCF) */
+        . = ALIGN(4);
+    } > FCF
+
+    .text :
+    {
+        *(.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 = .;
+
+    /* Keep first in RAM, as well as in bootloader */
+    .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
+
+    .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/a2993a9f/hw/bsp/usbmkw41z/pkg.yml
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/pkg.yml b/hw/bsp/usbmkw41z/pkg.yml
new file mode 100644
index 0000000..cc8d098
--- /dev/null
+++ b/hw/bsp/usbmkw41z/pkg.yml
@@ -0,0 +1,35 @@
+#
+# 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/usbmkw41z
+pkg.type: bsp
+pkg.description: BSP definition for the NXP USB KW41Z.
+pkg.author: "Apache Mynewt <de...@mynewt.incubator.apache.org>"
+pkg.homepage: "http://mynewt.apache.org/"
+pkg.keywords:
+    - nxp
+    - mkw41z
+    - usb-kw41z
+
+# NOTE: boot/bootutil and sys/flash_map were here. Seeing if they can be removed
+pkg.deps:
+    - hw/mcu/nxp/mkw41z
+    - libc/baselibc
+
+pkg.cflags: -DCPU_MKW41Z512VHT4

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a2993a9f/hw/bsp/usbmkw41z/src/arch/cortex_m0/gcc_startup_mkw41z.s
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/src/arch/cortex_m0/gcc_startup_mkw41z.s b/hw/bsp/usbmkw41z/src/arch/cortex_m0/gcc_startup_mkw41z.s
new file mode 100644
index 0000000..e80a85f
--- /dev/null
+++ b/hw/bsp/usbmkw41z/src/arch/cortex_m0/gcc_startup_mkw41z.s
@@ -0,0 +1,240 @@
+/* ---------------------------------------------------------------------------------------*/
+/*  @file:    startup_MKW40Z4.s                                                           */
+/*  @purpose: CMSIS Cortex-M0P Core Device Startup File                                   */
+/*            MKW40Z4                                                                     */
+/*  @version: 1.2                                                                         */
+/*  @date:    2015-5-7                                                                    */
+/*  @build:   b150513                                                                     */
+/* ---------------------------------------------------------------------------------------*/
+/*                                                                                        */
+/* Copyright (c) 1997 - 2015 , Freescale Semiconductor, Inc.                              */
+/* All rights reserved.                                                                   */
+/*                                                                                        */
+/* Redistribution and use in source and binary forms, with or without modification,       */
+/* are permitted provided that the following conditions are met:                          */
+/*                                                                                        */
+/* o Redistributions of source code must retain the above copyright notice, this list     */
+/*   of conditions and the following disclaimer.                                          */
+/*                                                                                        */
+/* o 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.                                      */
+/*                                                                                        */
+/* o Neither the name of Freescale Semiconductor, Inc. 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.                           */
+/*****************************************************************************/
+/* Version: GCC for ARM Embedded Processors                                  */
+/*****************************************************************************/
+    .syntax unified
+    .arch armv6-m
+
+    .section .stack
+    .align 3
+    .equ    Stack_Size, 432
+    .globl    __StackTop
+    .globl    __StackLimit
+__StackLimit:
+    .space    Stack_Size
+    .size __StackLimit, . - __StackLimit
+__StackTop:
+    .size __StackTop, . - __StackTop
+
+/* XXX: probably not needed; just possibly the global __HeapBase and __HeapLimit labels */
+    .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, "a"
+    .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   DMA0_IRQHandler                                 /* DMA channel 0 transfer complete*/
+    .long   DMA1_IRQHandler                                 /* DMA channel 1 transfer complete*/
+    .long   DMA2_IRQHandler                                 /* DMA channel 2 transfer complete*/
+    .long   DMA3_IRQHandler                                 /* DMA channel 3 transfer complete*/
+    .long   Reserved20_IRQHandler                           /* Reserved interrupt*/
+    .long   FTFA_IRQHandler                                 /* Command complete and read collision*/
+    .long   LVD_LVW_DCDC_IRQHandler                         /* Low-voltage detect, low-voltage warning, DCDC*/
+    .long   LLWU_IRQHandler                                 /* Low leakage wakeup Unit*/
+    .long   I2C0_IRQHandler                                 /* I2C0 interrupt*/
+    .long   I2C1_IRQHandler                                 /* I2C1 interrupt*/
+    .long   SPI0_IRQHandler                                 /* SPI0 single interrupt vector for all sources*/
+    .long   TSI0_IRQHandler                                 /* TSI0 single interrupt vector for all sources*/
+    .long   LPUART0_IRQHandler                              /* LPUART0 status and error*/
+    .long   TRNG0_IRQHandler                                /* TRNG0 interrupt*/
+    .long   CMT_IRQHandler                                  /* CMT interrupt*/
+    .long   ADC0_IRQHandler                                 /* ADC0 interrupt*/
+    .long   CMP0_IRQHandler                                 /* CMP0 interrupt*/
+    .long   TPM0_IRQHandler                                 /* TPM0 single interrupt vector for all sources*/
+    .long   TPM1_IRQHandler                                 /* TPM1 single interrupt vector for all sources*/
+    .long   TPM2_IRQHandler                                 /* TPM2 single interrupt vector for all sources*/
+    .long   RTC_IRQHandler                                  /* RTC alarm*/
+    .long   RTC_Seconds_IRQHandler                          /* RTC seconds*/
+    .long   PIT_IRQHandler                                  /* PIT interrupt*/
+    .long   LTC0_IRQHandler                                 /* LTC0 interrupt*/
+    .long   RF2400_0_IRQHandler                             /* 2.4 GHz radio INT0 */
+    .long   DAC0_IRQHandler                                 /* DAC0 interrupt*/
+    .long   RF2400_1_IRQHandler                             /* 2.4 GHz radio INT1 */
+    .long   MCG_IRQHandler                                  /* MCG interrupt*/
+    .long   LPTMR0_IRQHandler                               /* LPTMR0 interrupt*/
+    .long   SPI1_IRQHandler                                 /* SPI1 single interrupt vector for all sources*/
+    .long   PORTA_IRQHandler                                /* PORTA Pin detect*/
+    .long   PORTB_PORTC_IRQHandler                          /* PORTB and PORTC Pin detect*/
+
+    .size    __isr_vector, . - __isr_vector
+
+/* Flash Configuration */
+    .section .FlashConfig, "a"
+    .long 0xFFFFFFFF
+    .long 0xFFFFFFFF
+    .long 0xFFFFFFFF
+    .long 0xFFFFFFFE
+
+/* Reset Handler */
+    .text
+    .thumb
+    .thumb_func
+    .align 2
+    .globl   Reset_Handler
+    .type    Reset_Handler, %function
+Reset_Handler:
+    .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     R0, =__HeapBase
+    LDR     R1, =__HeapLimit
+    BL      _sbrkInit
+
+    LDR     R0, =SystemInit
+    BLX     R0
+    LDR     R0, =_start
+    BX      R0
+    .pool
+    .size Reset_Handler, . - Reset_Handler
+
+    .section ".text"
+
+/* Default handler. This uses the vector in the relocated vector table */
+    .globl  Default_Handler
+    .type   Default_Handler, %function
+Default_Handler:
+    LDR     R2, =__vector_tbl_reloc__
+    MRS     R0, PSR
+    MOVS    R1, #0x3F
+    ANDS    R0, R1
+    LSLS    R0, R0, #2
+    LDR     R0, [R0, R2]
+    BX      R0
+    .size   Default_Handler, . - Default_Handler
+
+
+/*    Macro to define default handlers. Default handler
+ *    will be weak symbol and just dead loops. They can be
+ *    overwritten by other handlers */
+    .macro def_irq_handler	handler_name
+    .weak \handler_name
+    .set  \handler_name, Default_Handler
+    .endm
+
+/* Exception Handlers */
+    def_irq_handler    NMI_Handler
+    def_irq_handler    HardFault_Handler
+    def_irq_handler    SVC_Handler
+    def_irq_handler    PendSV_Handler
+    def_irq_handler    SysTick_Handler
+    def_irq_handler    DMA0_IRQHandler
+    def_irq_handler    DMA1_IRQHandler
+    def_irq_handler    DMA2_IRQHandler
+    def_irq_handler    DMA3_IRQHandler
+    def_irq_handler    Reserved20_IRQHandler
+    def_irq_handler    FTFA_IRQHandler
+    def_irq_handler    LVD_LVW_DCDC_IRQHandler
+    def_irq_handler    LLWU_IRQHandler
+    def_irq_handler    I2C0_IRQHandler
+    def_irq_handler    I2C1_IRQHandler
+    def_irq_handler    SPI0_IRQHandler
+    def_irq_handler    TSI0_IRQHandler
+    def_irq_handler    LPUART0_IRQHandler
+    def_irq_handler    TRNG0_IRQHandler
+    def_irq_handler    CMT_IRQHandler
+    def_irq_handler    ADC0_IRQHandler
+    def_irq_handler    CMP0_IRQHandler
+    def_irq_handler    TPM0_IRQHandler
+    def_irq_handler    TPM1_IRQHandler
+    def_irq_handler    TPM2_IRQHandler
+    def_irq_handler    RTC_IRQHandler
+    def_irq_handler    RTC_Seconds_IRQHandler
+    def_irq_handler    PIT_IRQHandler
+    def_irq_handler    LTC0_IRQHandler
+    def_irq_handler    RF2400_0_IRQHandler
+    def_irq_handler    DAC0_IRQHandler
+    def_irq_handler    RF2400_1_IRQHandler
+    def_irq_handler    MCG_IRQHandler
+    def_irq_handler    LPTMR0_IRQHandler
+    def_irq_handler    SPI1_IRQHandler
+    def_irq_handler    PORTA_IRQHandler
+    def_irq_handler    PORTB_PORTC_IRQHandler
+
+    .end

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a2993a9f/hw/bsp/usbmkw41z/src/hal_bsp.c
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/src/hal_bsp.c b/hw/bsp/usbmkw41z/src/hal_bsp.c
new file mode 100644
index 0000000..454ee64
--- /dev/null
+++ b/hw/bsp/usbmkw41z/src/hal_bsp.c
@@ -0,0 +1,88 @@
+/*
+ * 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 <assert.h>
+#include "hal/hal_bsp.h"
+#include "bsp/bsp.h"
+#include "flash_map/flash_map.h"
+#include "hal/hal_flash.h"
+
+/*
+ * What memory to include in coredump.
+ */
+static const struct hal_bsp_mem_dump dump_cfg[] = {
+    [0] = {
+        .hbmd_start = &_ram_start,
+        .hbmd_size = RAM_SIZE
+    }
+};
+
+const struct hal_flash *
+hal_bsp_flash_dev(uint8_t id)
+{
+    /*
+     * Internal flash mapped to id 0.
+     */
+    if (id != 0) {
+        return NULL;
+    }
+    return NULL;
+}
+
+const struct hal_bsp_mem_dump *
+hal_bsp_core_dump(int *area_cnt)
+{
+    *area_cnt = sizeof(dump_cfg) / sizeof(dump_cfg[0]);
+    return dump_cfg;
+}
+
+int
+hal_bsp_power_state(int state)
+{
+    return (0);
+}
+
+/**
+ * Returns the configured priority for the given interrupt. If no priority
+ * configured, return the priority passed in
+ *
+ * @param irq_num
+ * @param pri
+ *
+ * @return uint32_t
+ */
+uint32_t
+hal_bsp_get_nvic_priority(int irq_num, uint32_t pri)
+{
+    uint32_t cfg_pri;
+
+    switch (irq_num) {
+    default:
+        cfg_pri = pri;
+    }
+    return cfg_pri;
+}
+
+void
+hal_bsp_init(void)
+{
+    return;
+}

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a2993a9f/hw/bsp/usbmkw41z/src/sbrk.c
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/src/sbrk.c b/hw/bsp/usbmkw41z/src/sbrk.c
new file mode 100644
index 0000000..5df43c9
--- /dev/null
+++ b/hw/bsp/usbmkw41z/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/a2993a9f/hw/bsp/usbmkw41z/syscfg.yml
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/syscfg.yml b/hw/bsp/usbmkw41z/syscfg.yml
new file mode 100644
index 0000000..8379c99
--- /dev/null
+++ b/hw/bsp/usbmkw41z/syscfg.yml
@@ -0,0 +1,35 @@
+#
+# 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.
+#
+
+# Package: hw/bsp/usbmkw41z
+
+syscfg.defs:
+    BSP_USBMKW41Z:
+        description: 'TBD'
+        value: 1
+
+    CLOCK_FREQ:
+        description: 'TBD'
+        value: 1000000
+
+syscfg.vals:
+    CONFIG_FCB_FLASH_AREA: FLASH_AREA_NFFS
+    REBOOT_LOG_FLASH_AREA: FLASH_AREA_REBOOT_LOG
+    NFFS_FLASH_AREA: FLASH_AREA_NFFS
+    COREDUMP_FLASH_AREA: FLASH_AREA_IMAGE_1

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a2993a9f/hw/bsp/usbmkw41z/usbkw41z_debug.sh
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/usbkw41z_debug.sh b/hw/bsp/usbmkw41z/usbkw41z_debug.sh
new file mode 100755
index 0000000..90d0596
--- /dev/null
+++ b/hw/bsp/usbmkw41z/usbkw41z_debug.sh
@@ -0,0 +1,36 @@
+#!/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:
+#  - CORE_PATH is absolute path to @apache-mynewt-core
+#  - 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
+#  - NO_GDB set if we should not start gdb to debug
+#
+
+. $CORE_PATH/hw/scripts/jlink.sh
+
+FILE_NAME=$BIN_BASENAME.elf
+JLINK_DEV="MKW41Z512xxx4"
+
+jlink_debug

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/a2993a9f/hw/bsp/usbmkw41z/usbkw41z_download.sh
----------------------------------------------------------------------
diff --git a/hw/bsp/usbmkw41z/usbkw41z_download.sh b/hw/bsp/usbmkw41z/usbkw41z_download.sh
new file mode 100755
index 0000000..78dbe83
--- /dev/null
+++ b/hw/bsp/usbmkw41z/usbkw41z_download.sh
@@ -0,0 +1,41 @@
+#!/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:
+#  - CORE_PATH is absolute path to @apache-mynewt-core
+#  - 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 (for non-mfg-image, non-boot)
+#  - FEATURES holds the target features string
+#  - EXTRA_JTAG_CMD holds extra parameters to pass to jtag software
+#  - MFG_IMAGE is "1" if this is a manufacturing image
+#  - FLASH_OFFSET contains the flash offset to download to
+#  - BOOT_LOADER is set if downloading a bootloader
+
+. $CORE_PATH/hw/scripts/jlink.sh
+
+if [ "$MFG_IMAGE" ]; then
+    FLASH_OFFSET=0x0
+fi
+
+JLINK_DEV="MKW41Z512xxx4"
+
+common_file_to_load
+jlink_load