Initial support for the Kinetis L family and the Freedom KL25Z board from Alan Carvalho de Assis

16 files changed, 3222 insertions, 0 deletions

diff --git a/nuttx/configs/freedom-kl25z/Kconfig b/nuttx/configs/freedom-kl25z/Kconfig
new file mode 100644
index 000000000..c605a0a0d
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/Kconfig
@@ -0,0 +1,7 @@
+#
+# For a description of the syntax of this configuration file,
+# see misc/tools/kconfig-language.txt.
+#
+
+if ARCH_BOARD_FREEDOM_KL25Z
+endif
diff --git a/nuttx/configs/freedom-kl25z/README.txt b/nuttx/configs/freedom-kl25z/README.txt
new file mode 100644
index 000000000..7929668c5
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/README.txt
@@ -0,0 +1,383 @@
+README.txt
+==========
+
+This is the README file for the port of NuttX to the Freescale
+Freedom K25Z board.  This board has the K25Z120LE3AN chip
+with a built-in NuLink debugger.
+
+Contents
+========
+
+  - Development Environment
+  - GNU Toolchain Options
+  - NuttX Buildroot Toolchain
+  - LEDs
+  - Serial Console
+  - Debugging
+  - NuTiny-specific Configuration Options
+  - Configurations
+
+Development Environment
+=======================
+
+  Either Linux or Cygwin on Windows can be used for the development environment.
+  The source has been built only using the GNU toolchain (see below).  Other
+  toolchains will likely cause problems.
+
+GNU Toolchain Options
+=====================
+
+  As of this writing, all testing has been performed using the NuttX buildroot
+  toolchain described below.  I have also verified the build using the
+  CodeSourcery GCC toolchain for windows.  Most any contemporary EABI GCC
+  toolchain should work will a little tinkering.
+
+NuttX Buildroot Toolchain
+=========================
+
+  A GNU GCC-based toolchain is assumed.  The files */setenv.sh should
+  be modified to point to the correct path to the Cortex-M3 GCC toolchain (if
+  different from the default in your PATH variable).
+
+  If you have no Cortex-M0 toolchain, one can be downloaded from the NuttX
+  SourceForge download site (https://sourceforge.net/projects/nuttx/files/buildroot/).
+  This GNU toolchain builds and executes in the Linux or Cygwin environment.
+
+  1. You must have already configured Nuttx in <some-dir>/nuttx.
+
+     cd tools
+     ./configure.sh freedom-kl25z/<sub-dir>
+
+  2. Download the latest buildroot package into <some-dir>
+
+  3. unpack the buildroot tarball.  The resulting directory may
+     have versioning information on it like buildroot-x.y.z.  If so,
+     rename <some-dir>/buildroot-x.y.z to <some-dir>/buildroot.
+
+  4. cd <some-dir>/buildroot
+
+  5. cp configs/cortexm0-eabi-defconfig-4.6.3 .config
+
+  6. make oldconfig
+
+  7. make
+
+  8. Edit setenv.h, if necessary, so that the PATH variable includes
+     the path to the newly built binaries.
+
+  See the file configs/README.txt in the buildroot source tree.  That has more
+  details PLUS some special instructions that you will need to follow if you are
+  building a Cortex-M3 toolchain for Cygwin under Windows.
+
+LEDs
+====
+
+  The NuTiny has a single green LED that can be controlled from sofware.
+  This LED is connected to PIN17.  It is pulled high so a low value will
+  illuminate the LED.
+
+  If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board the
+  NuTiny.  The following definitions describe how NuttX controls the LEDs:
+
+    SYMBOL                Meaning                 LED state
+                                                  Initially all LED is OFF
+    -------------------  -----------------------  ------------- ------------
+    LED_STARTED          NuttX has been started   LED ON
+    LED_HEAPALLOCATE     Heap has been allocated  LED ON
+    LED_IRQSENABLED      Interrupts enabled       LED ON
+    LED_STACKCREATED     Idle stack created       LED ON
+    LED_INIRQ            In an interrupt          LED should glow
+    LED_SIGNAL           In a signal handler      LED might glow
+    LED_ASSERTION        An assertion failed      LED ON while handling the assertion
+    LED_PANIC            The system has crashed   LED Blinking at 2Hz
+    LED_IDLE             K25Z1XX is in sleep mode  (Optional, not used)
+
+Serial Console
+==============
+
+As with most NuttX configurations, the Freedom K25Z configurations
+depend on having a serial console to interact with the software.  The
+Freedom K25Z, however, has not on-board RS-232 drivers so will be
+necessary to connect the Freedom K25Z UART pins to an external
+RS-232 driver board or TTL-to-Serial USB adaptor.
+
+By default UART1 is used as the serial console on these boards.  K25Z120LE3AN
+is provided as an LQFP48 package and, for this case, the UART1 RX signal
+(RXD1) is on PB.4, pin 8, and the TX signal (TXD1) is on PB.5, pin 9.
+These pins are available on the Freedom K25Z JP5.
+
+  NOTE: The TX vs RX labeling may be confusing.  On one RS-232 driver board,
+  I had to connect the K25Z120 TXD0 pin to the driver boards RXD pin.  How
+  confusing!
+
+UART0 is an alternative that can be selected by modifying the default
+configuation.  UART0 RX (RXD0) is on PB.0, pin 17, and the TX signal (TXD0)
+is on PB.1, pin 18.  These pins are available on the Freedom K25Z JP1.
+
+  NOTE: PB.0, pin 17, is also used to control the user LED on board (labeled
+  "IO").  CONFIG_ARCH_LED should not be selected if UART0 is used.
+
+The K25Z120LE3AN does not support UART2.
+
+Debugging
+=========
+
+The Freedom K25Z includes a built-in NuLink debugger.  Unfortunately,
+full debug support is available only with the Keil and IAR toolchains.
+There is, however, a free program called ICP (In-Circuit Programmer).  It
+can be used to burn programs into FLASH (aka APROM).
+
+The ICP program can also be used to burn an ISP program into LDROM.  The
+ISP (In-System Programmer) is available free from the Nuvton website.
+
+Then NuttX build does not set the configuration words at 0x0030000-0x00300004.
+You should uncheck the Config box when burning APROM or the previous contents
+of the configuration words will be erased.
+
+NuTiny-specific Configuration Options
+=====================================
+
+    CONFIG_ARCH - Identifies the arch/ subdirectory.  This should
+       be set to:
+
+       CONFIG_ARCH=arm
+
+    CONFIG_ARCH_family - For use in C code:
+
+       CONFIG_ARCH_ARM=y
+
+    CONFIG_ARCH_architecture - For use in C code:
+
+       CONFIG_ARCH_CORTEXM0=y
+
+    CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
+
+       CONFIG_ARCH_CHIP=kl
+
+    CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
+       chip:
+
+       CONFIG_ARCH_CHIP_K25Z120LE3AN=y
+
+    CONFIG_ARCH_BOARD - Identifies the configs subdirectory and
+       hence, the board that supports the particular chip or SoC.
+
+       CONFIG_ARCH_BOARD=freedom-kl25z (for the Freescale FRDM-KL25Z development board)
+
+    CONFIG_ARCH_BOARD_name - For use in C code
+
+       CONFIG_ARCH_BOARD_FREEDOM_K25Z128=y
+
+    CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation
+       of delay loops
+
+    CONFIG_ENDIAN_BIG - define if big endian (default is little
+       endian)
+
+    CONFIG_DRAM_SIZE - Describes the installed DRAM (SRAM in this case):
+
+       CONFIG_DRAM_SIZE=16384 (16Kb)
+
+    CONFIG_DRAM_START - The start address of installed DRAM
+
+       CONFIG_DRAM_START=0x20000000
+
+    CONFIG_ARCH_IRQPRIO - The Cortex-M0 supports interrupt prioritization
+
+       CONFIG_ARCH_IRQPRIO=y
+
+    CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to boards that
+       have LEDs
+
+    CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
+       stack. If defined, this symbol is the size of the interrupt
+       stack in bytes.  If not defined, the user task stacks will be
+       used during interrupt handling.
+
+    CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
+
+    CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
+
+    CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
+       cause a 100 second delay during boot-up.  This 100 second delay
+       serves no purpose other than it allows you to calibratre
+       CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
+       the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
+       the delay actually is 100 seconds.
+
+  Individual subsystems can be enabled as follows.  These settings are for
+  all of the K25Z100/120 line and may not be available for the K25Z120LE3AN
+  in particular:
+
+  AHB
+  ---
+
+    CONFIG_KL_PDMA    Peripheral DMA
+    CONFIG_KL_FMC     Flash memory
+    CONFIG_KL_EBI     External bus interface
+
+  APB1
+  ----
+
+    CONFIG_KL_WDT     Watchdog timer
+    CONFIG_KL_RTC     Real time clock (RTC)
+    CONFIG_KL_TMR0    Timer0
+    CONFIG_KL_TMR1    Timer1
+    CONFIG_KL_I2C0    I2C interface
+    CONFIG_KL_SPI0    SPI0 master/slave
+    CONFIG_KL_SPI1    SPI1 master/slave
+    CONFIG_KL_PWM0    PWM0
+    CONFIG_KL_PWM1    PWM1
+    CONFIG_KL_PWM2    PWM2
+    CONFIG_KL_PWM3    PWM3
+    CONFIG_KL_UART0   UART0
+    CONFIG_KL_USBD    USB 2.0 FS device controller
+    CONFIG_KL_ACMP    Analog comparator
+    CONFIG_KL_ADC     Analog-digital-converter (ADC)
+
+  APB2
+  ---
+
+    CONFIG_KL_PS2     PS/2 interface
+    CONFIG_KL_TIMR2   Timer2
+    CONFIG_KL_TIMR3   Timer3
+    CONFIG_KL_I2C1    I2C1 interface
+    CONFIG_KL_SPI2    SPI2 master/slave
+    CONFIG_KL_SPI3    SPI3 master/slave
+    CONFIG_KL_PWM4    PWM4
+    CONFIG_KL_PWM5    PWM5
+    CONFIG_KL_PWM6    PWM6
+    CONFIG_KL_PWM7    PWM7
+    CONFIG_KL_UART1   UART1
+    CONFIG_KL_UART2   UART2
+    CONFIG_KL_I2S     I2S interface
+
+  K25Z1XX specific device driver settings
+
+    CONFIG_UARTn_SERIAL_CONSOLE - Selects the UARTn (n=0,1,2) for the
+      console and ttys0.
+    CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received.
+       This specific the size of the receive buffer for UARTn.
+    CONFIG_UARTn_TXBUFSIZE - Characters are buffered before
+       being sent.  This specific the size of the transmit buffer
+       for UARTn.
+    CONFIG_UARTn_BAUD - The configure BAUD of UARTn,
+    CONFIG_UARTn_BITS - The number of bits.  Must be 5, 6, 7, or 8.
+    CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
+    CONFIG_UARTn_2STOP - Two stop bits
+
+Configurations
+==============
+
+Each FREEDOM-KL25Z configuration is maintained in a sub-directory and
+can be selected as follow:
+
+    cd tools
+    ./configure.sh freedom-kl25z/<subdir>
+    cd -
+    . ./setenv.sh
+
+If this is a Windows native build, then configure.bat should be used
+instead of configure.sh:
+
+    configure.bat freedom-kl25z\<subdir>
+
+Where <subdir> is one of the following:
+
+  ostest:
+  ------
+    This configuration directory, performs a simple OS test using
+    apps/examples/ostest.
+
+    NOTES:
+ 
+    1. This configuration uses the mconf-based configuration tool.  To
+       change this configuration using that tool, you should:
+
+       a. Build and install the kconfig-mconf tool.  See nuttx/README.txt
+          and misc/tools/
+
+       b. Execute 'make menuconfig' in nuttx/ in order to start the
+          reconfiguration process.
+
+    2. Default toolchain:
+
+       CONFIG_HOST_WINDOWS=y                   : Builds under Windows
+       CONFIG_WINDOWS_CYGWIN=y                 : Using Cygwin
+       CONFIG_ARMV6M_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
+
+    3. Serial Console.  A serial console is required to see the OS test
+       output.  The serial console is configured on UART1 which is available
+       on JP5:
+
+       UART1 RX signal (RXD1) is on PB.4, pin 8, and
+       UART1 TX signal (TXD1) is on PB.5, pin 9.
+
+  nsh:
+  ---
+    Configures the NuttShell (nsh) located at apps/examples/nsh.  The
+    Configuration enables the serial interfaces on UART1.  Support for
+    builtin applications is disabled.
+
+    NOTES:
+ 
+    1. This configuration uses the mconf-based configuration tool.  To
+       change this configuration using that tool, you should:
+
+       a. Build and install the kconfig-mconf tool.  See nuttx/README.txt
+          and misc/tools/
+
+       b. Execute 'make menuconfig' in nuttx/ in order to start the
+          reconfiguration process.
+
+    2. By default, this configuration uses the CodeSourcery toolchain
+       for Windows and builds under Cygwin (or probably MSYS).  That
+       can easily be reconfigured, of course.
+
+       CONFIG_HOST_WINDOWS=y                   : Builds under Windows
+       CONFIG_WINDOWS_CYGWIN=y                 : Using Cygwin
+       CONFIG_ARMV7M_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
+
+    3. Serial Console.  A serial console is necessary to interrupt with
+       NSH. The serial console is configured on UART1 which is available
+       on JP5:
+
+       UART1 RX signal (RXD1) is on PB.4, pin 8, and
+       UART1 TX signal (TXD1) is on PB.5, pin 9.
+
+       It is possible to configure NSH to use a USB serial console instead
+       of an RS-232 serial console.  However, that configuration has not
+       been impelmented as of this writing.
+
+    4. Memory Usage.  The size command gives us the static memory usage.
+       This is what I get:
+
+       $ size nuttx
+          text    data     bss     dec     hex filename
+         35037     106    1092   36235    8d8b nuttx
+
+       And we can get the runtime memory usage from the NSH free command:
+
+       NuttShell (NSH) NuttX-6.25
+       nsh> free
+            total  used free  largest
+       Mem: 14160  3944 10216 10216
+       nsh>
+
+       Summary:
+
+       - This slightly tuned NSH example uses 34.2KB of FLASH leaving 93.8KB
+         of FLASH (72%) free from additional application development.
+
+         I did not do all of the arithmetic, but it appears to me that of this
+         34+KB of FLASH usage, probably 20-30% of the FLASH is used by libgcc!
+         libgcc has gotten very fat!
+
+       - Static SRAM usage is about 1.2KB (<4%).
+
+       - At run time, 10.0KB of SRAM (62%) is still available for additional
+         applications. Most of the memory used at runtime is allocated I/O
+         buffers and the stack for the NSH main thread (1.5KB).
+
+       There is probably enough free memroy to support 3 or 4 application
+       threads in addition to NSH.
diff --git a/nuttx/configs/freedom-kl25z/include/board.h b/nuttx/configs/freedom-kl25z/include/board.h
new file mode 100644
index 000000000..7a17570c4
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/include/board.h
@@ -0,0 +1,286 @@
+/************************************************************************************
+ * configs/kwikstik-k40/include/board.h
+ * include/arch/board/board.h
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name NuttX 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 OWNER 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.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_BOARD_BOARD_H
+#define __ARCH_BOARD_BOARD_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#ifndef __ASSEMBLY__
+# include <stdint.h>
+#endif
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* Clocking *************************************************************************/
+/* The Kwikstik-K40 has a 4MHz crystal on board */
+
+#undef  BOARD_EXTCLOCK                      /* Crystal */
+#define BOARD_EXTAL_FREQ     8000000        /* 8MHz crystal frequency (REFCLK) */
+#define BOARD_HCLK_FREQUENCY BOARD_EXTAL_FREQ
+#define BOARD_XTAL32_FREQ    32768          /* 32KHz RTC Oscillator */
+
+/* PLL Configuration.  NOTE: Only even frequency crystals are supported that will
+ * produce a 2MHz reference clock to the PLL.
+ *
+ *   PLL Input frequency:   PLLIN  = REFCLK/PRDIV = 4MHz/2 = 2MHz
+ *   PLL Output frequency:  PLLOUT = PLLIN*VDIV   = 2Mhz*48 = 96MHz
+ *   MCG Frequency:         PLLOUT = 96MHz
+ */
+
+#define BOARD_PRDIV          2              /* PLL External Reference Divider */
+#define BOARD_VDIV           48             /* PLL VCO Divider (frequency multiplier) */
+
+#define BOARD_PLLIN_FREQ     (BOARD_EXTAL_FREQ / BOARD_PRDIV)
+#define BOARD_PLLOUT_FREQ    (BOARD_PLLIN_FREQ * BOARD_VDIV)
+#define BOARD_MCG_FREQ       BOARD_PLLOUT_FREQ
+
+/* SIM CLKDIV1 dividers */
+
+#define BOARD_OUTDIV1        1              /* Core        = MCG, 96MHz */
+#define BOARD_OUTDIV2        2              /* Bus         = MCG/2, 48MHz */
+#define BOARD_OUTDIV3        2              /* FlexBus     = MCG/2, 48MHz */
+#define BOARD_OUTDIV4        4              /* Flash clock = MCG/4, 24MHz */
+
+#define BOARD_CORECLK_FREQ  (BOARD_MCG_FREQ / BOARD_OUTDIV1)
+#define BOARD_BUS_FREQ      (BOARD_MCG_FREQ / BOARD_OUTDIV2)
+#define BOARD_FLEXBUS_FREQ  (BOARD_MCG_FREQ / BOARD_OUTDIV3)
+#define BOARD_FLASHCLK_FREQ (BOARD_MCG_FREQ / BOARD_OUTDIV4)
+
+/* SDHC clocking ********************************************************************/
+
+/* SDCLK configurations corresponding to various modes of operation.   Formula is:
+ *
+ *   SDCLK  frequency = (base clock) / (prescaler * divisor)
+ *
+ * The SDHC module is always configure configured so that the core clock is the base
+ * clock.
+ */
+
+/* Identification mode:  400KHz = 96MHz / ( 16 * 15) */
+
+#define BOARD_SDHC_IDMODE_PRESCALER   SDHC_SYSCTL_SDCLKFS_DIV16
+#define BOARD_SDHC_IDMODE_DIVISOR     SDHC_SYSCTL_DVS_DIV(15)
+
+/* MMC normal mode: 16MHz  = 96MHz / (2 * 3) */
+
+#define BOARD_SDHC_MMCMODE_PRESCALER  SDHC_SYSCTL_SDCLKFS_DIV2
+#define BOARD_SDHC_MMCMODE_DIVISOR    SDHC_SYSCTL_DVS_DIV(3)
+
+/* SD normal mode (1-bit): 16MHz  = 96MHz / (2 * 3) */
+
+#define BOARD_SDHC_SD1MODE_PRESCALER  SDHC_SYSCTL_SDCLKFS_DIV2
+#define BOARD_SDHC_SD1MODE_DIVISOR    SDHC_SYSCTL_DVS_DIV(3)
+
+/* SD normal mode (4-bit): 24MHz  = 96MHz / (2 * 2) (with DMA)
+ * SD normal mode (4-bit): 16MHz  = 96MHz / (2 * 3) (no DMA)
+ */
+
+#ifdef CONFIG_SDIO_DMA
+#  define BOARD_SDHC_SD4MODE_PRESCALER SDHC_SYSCTL_SDCLKFS_DIV2
+#  define BOARD_SDHC_SD4MODE_DIVISOR   SDHC_SYSCTL_DVS_DIV(2)
+#else
+//#  define BOARD_SDHC_SD4MODE_PRESCALER SDHC_SYSCTL_SDCLKFS_DIV2
+//#  define BOARD_SDHC_SD4MODE_DIVISOR   SDHC_SYSCTL_DVS_DIV(3)
+#  define BOARD_SDHC_SD4MODE_PRESCALER SDHC_SYSCTL_SDCLKFS_DIV16
+#  define BOARD_SDHC_SD4MODE_DIVISOR   SDHC_SYSCTL_DVS_DIV(15)
+#endif
+
+/* LED definitions ******************************************************************/
+/* The KwikStik-K40 board has no MCU driven, GPIO-based LEDs */
+
+#define LED_STARTED       0
+#define LED_HEAPALLOCATE  1
+#define LED_IRQSENABLED   2
+#define LED_STACKCREATED  3
+#define LED_INIRQ         4
+#define LED_SIGNAL        5
+#define LED_ASSERTION     6
+#define LED_PANIC         7
+
+/* Button definitions ***************************************************************/
+/* The KwikStik-K40 board has no standard GPIO contact buttons */
+
+/* Alternative pin resolution *******************************************************/
+/* If there are alternative configurations for various pins in the
+ * kinetis_k40pinmux.h header file, those alternative pins will be labeled with a
+ * suffix like _1, _2, etc.  The logic in this file must select the correct pin
+ * configuration for the board by defining a pin configuration (with no suffix) that
+ * maps to the correct alternative.
+ */
+
+/* On-Board Connections
+ *
+ * ------------------- -------------------------- -------- -------------------
+ * FEATURE             CONNECTION                 PORT/PIN PIN FUNCTION
+ * ------------------- -------------------------- -------- -------------------
+ * Audio Jack Output   Audio Amp On               PTE28    PTE28
+ *                     Audio Output               DAC1_OUT DAC1_OUT
+ *                     Volume Up                  PTD10    PTD10
+ *                     Volume Down                PTD11    PTD11
+ * Buzzer              Audio Out                  PTA8     FTM1_CH0
+ * Microphone          Microphone input           PTA7     ADC0_SE10
+ * SD Card Slot        SD Clock                   PTE2     SDHC0_DCLK
+ *                     SD Command                 PTE3     SDHC0_CMD
+ *                     SD Data0                   PTD12    SDHC0_D4
+ *                     SD Data1                   PTD13    SDHC0_D5
+ *                     SD Data2                   PTD14    SDHC0_D6
+ *                     SD Data3                   PTD15    SDHC0_D7
+ *                     SD Card Detect             PTE27    PTE27
+ *                     SD Card On                 PTE6     PTE6
+ * Infrared Port       IR Transmit                PTE4     IR_TX
+ *                     IR Receive                 PTA13    CMP2_IN0
+ * Touch Pads          E1 / Touch                 PTB0     TSI0_CH0
+ *                     E2 / Touch                 PTA4     TSI0_CH5
+ *                     E3 / Touch                 PTA24    PTA24
+ *                     E4 / Touch                 PTA25    PTA25
+ *                     E5 / Touch                 PTA26    PTA26
+ *                     E6 / Touch                 PTA27    PTA27
+ */
+
+#define PIN_FTM1_CH0   PIN_FTM1_CH0_1
+
+/* Connections via the General Purpose Tower Plug-in (TWRPI) Socket
+ * ------------------- -------------------------- -------- -------------------
+ * FEATURE             CONNECTION                 PORT/PIN PIN FUNCTION
+ * ------------------- -------------------------- -------- -------------------
+ * General Purpose     TWRPI AN0 (J8 Pin 8)       ?        ADC0_DP0/ADC1_DP3
+ * TWRPI Socket        TWRPI AN1 (J8 Pin 9)       ?        ADC0_DM0/ADC1_DM3
+ *                     TWRPI AN2 (J8 Pin 12)      ?        ADC1_DP0/ADC0_DP3
+ *                     TWRPI ID0 (J8 Pin 17)      ?        ADC0_DP1
+ *                     TWRPI ID1 (J8 Pin 18)      ?        ADC0_DM1
+ *                     TWRPI I2C SCL (J9 Pin 3)   PTC10    I2C1_SCL
+ *                     TWRPI I2C SDA (J9 Pin 4)   PTC11    I2C1_SDA
+ *                     TWRPI SPI MISO (J9 Pin 9)  PTB23    SPI2_SIN
+ *                     TWRPI SPI MOSI (J9 Pin 10) PTB22    SPI2_SOUT
+ *                     TWRPI SPI SS (J9 Pin 11)   PTB20    SPI2_PCS0
+ *                     TWRPI SPI CLK (J9 Pin 12)  PTB21    SPI2_SCK
+ *                     TWRPI GPIO0 (J9 Pin 15)    PTC12    PTC12
+ *                     TWRPI GPIO1 (J9 Pin 16)    PTB9     PTB9
+ *                     TWRPI GPIO2 (J9 Pin 17)    PTB10    PTB10
+ *                     TWRPI GPIO3 (J9 Pin 18)    PTC5     PTC5
+ *                     TWRPI GPIO4 (J9 Pin 19)    PTA5     PTA5
+ */
+
+#define PIN_I2C1_SCL   PIN_I2C1_SCL_1
+#define PIN_I2C1_SDA   PIN_I2C1_SDA_1
+#define PIN_SPI2_SIN   PIN_SPI2_SIN_1
+#define PIN_SPI2_SOUT  PIN_SPI2_SOUT_1
+#define PIN_SPI2_PCS0  PIN_SPI2_PCS0_1
+#define PIN_SPI2_SCK   PIN_SPI2_SCK_1
+
+/* Connections via the Tower Primary Connector Side A
+ * --- -------------------- --------------------------------
+ * PIN NAME                 USAGE
+ * --- -------------------- --------------------------------
+ * A9  GPIO9 / CTS1         PTE10/UART_CTS
+ * A43 RXD1                 PTE9/UART_RX
+ * A44 TXD1                 PTE8/UART_TX
+ * A63 RSTOUT_b             PTA9/FTM1_CH1
+ */
+
+#define PIN_UART5_CTS   PIN_UART5_CTS_2
+#define PIN_FTM1_CH1    PIN_FTM1_CH1_1
+
+/* Connections via the Tower Primary Connector Side B
+ * --- -------------------- --------------------------------
+ * PIN NAME                 USAGE
+ * --- -------------------- --------------------------------
+ * B21 GPIO1 / RTS1         PTE7/UART_RTS
+ * B37 PWM7                 PTA8/FTM1_CH0
+ * B38 PWM6                 PTA9/FTM1_CH1
+ * B41 CANRX0               PTE25/CAN1_RX
+ * B42 CANTX0               PTE24/CAN1_TX
+ * B44 SPI0_MISO            PTA17/SPI0_SIN
+ * B45 SPI0_MOSI            PTA16/SPI0_SOUT
+ * B46 SPI0_CS0_b           PTA14/SPI0_PCS0
+ * B48 SPI0_CLK             PTA15/SPI0_SCK
+ * B50 SCL1                 PTE1/I2C1_SCL
+ * B51 SDA1                 PTE0/I2C1_SDA
+ * B52 GPIO5 / SD_CARD_DET  PTA16
+ */
+
+#define PIN_UART3_RTS   PIN_UART3_RTS_3
+#define PIN_CAN1_RX     PIN_CAN1_RX_2
+#define PIN_CAN1_TX     PIN_CAN1_TX_2
+#define PIN_SPI0_SIN    PIN_SPI0_SIN_1
+#define PIN_SPI0_SOUT   PIN_SPI0_SOUT_1
+#define PIN_SPI0_SCK    PIN_SPI0_SCK_1
+#define PIN_SPI0_PCS0   PIN_SPI0_PCS0_1
+#define PIN_I2C1_SCL    PIN_I2C1_SCL_2
+#define PIN_I2C1_SDA    PIN_I2C1_SDA_2
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+/************************************************************************************
+ * Name: kinetis_boardinitialize
+ *
+ * Description:
+ *   All STM32 architectures must provide the following entry point.  This entry point
+ *   is called early in the intitialization -- after all memory has been configured
+ *   and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+EXTERN void kinetis_boardinitialize(void);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif  /* __ARCH_BOARD_BOARD_H */
diff --git a/nuttx/configs/freedom-kl25z/include/board.h_orig b/nuttx/configs/freedom-kl25z/include/board.h_orig
new file mode 100644
index 000000000..639d7b580
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/include/board.h_orig
@@ -0,0 +1,170 @@
+/************************************************************************************
+ * configs/freedom-kl25z/include/board.h
+ * include/arch/board/board.h
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name NuttX 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 OWNER 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.
+ *
+ ************************************************************************************/
+
+#ifndef __CONFIGS_FREEDOM_KL25Z_INCLUDE_BOARD_H
+#define __CONFIGS_FREEDOM_KL25Z_INCLUDE_BOARD_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#ifndef __ASSEMBLY__
+# include <stdint.h>
+#endif
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+/* Clocking *************************************************************************/
+/* Crystal frequencies */
+
+#define BOARD_XTALHI_FREQUENCY 12000000
+#define BOARD_XTALLO_FREQUENCY 32768
+
+/* PLL: The PLL must be 48MHz x N times when using USB
+ *
+ * FOUT = FIN x (NF/NR) x (1 / NO)
+ * FIN  = Input reference clock frequency
+ * NF   = Feedback divider
+ *      = (FB_DV + 2)
+ * NR   = Input divider
+ *      = (IN_DV + 2)
+ * NO   = 1 if OUT_DV == 0
+ *        2 if OUT_DV == 1 or 2
+ *        4 if OUT_DV == 3
+ *
+ * FOUT = 12000000 x 48 / 3 / 4
+ *      = 48MHz
+ */
+
+#define BOARD_PLL_FIN    BOARD_XTALHI_FREQUENCY
+#define BOARD_PLL_FB_DV  46
+#define BOARD_PLL_NF     (BOARD_PLL_FB_DV+2)
+#define BOARD_PLL_IN_DV  1
+#define BOARD_PLL_NR     (BOARD_PLL_IN_DV+2)
+#define BOARD_PLL_OUT_DV 3
+#define BOARD_PLL_NO     4
+
+#define BOARD_PLL_FOUT \
+  (BOARD_PLL_FIN * BOARD_PLL_NF / BOARD_PLL_NR / BOARD_PLL_NO)
+
+/* HCLK. FOUT is the HCLK source clock. */
+
+#define BOARD_HCLK_N     1
+#define BOARD_HCLK_FREQUENCY (BOARD_PLL_FOUT / BOARD_HCLK_N)
+
+/* USB. FOUT is the source.  The USB CLK must be 48MHz */
+
+#define BOARD_USB_N     1
+#define BOARD_USB_FREQUENCY (BOARD_PLL_FOUT / BOARD_USB_N)
+
+/* LED definitions ******************************************************************/
+/* The NuTiny has a single green LED that can be controlled from sofware.  This LED
+ * is connected to PIN17.  It is pulled high so a low value will illuminate the LED.
+ */
+
+#define BOARD_NLEDS       1
+
+/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board the
+ * NuTiny.  The following definitions describe how NuttX controls the LEDs:
+ *
+ *   SYMBOL                Meaning                 LED state
+ *                                                 Initially all LED is OFF
+ *   -------------------  -----------------------  ------------- ------------
+ *   LED_STARTED          NuttX has been started   LED ON
+ *   LED_HEAPALLOCATE     Heap has been allocated  LED ON
+ *   LED_IRQSENABLED      Interrupts enabled       LED ON
+ *   LED_STACKCREATED     Idle stack created       LED ON
+ *   LED_INIRQ            In an interrupt          LED should glow
+ *   LED_SIGNAL           In a signal handler      LED might glow
+ *   LED_ASSERTION        An assertion failed      LED ON while handling the assertion
+ *   LED_PANIC            The system has crashed   LED Blinking at 2Hz
+ *   LED_IDLE             K25Z is is sleep mode   (Optional, not used)
+ */
+
+#define LED_STARTED       0
+#define LED_HEAPALLOCATE  0
+#define LED_IRQSENABLED   0
+#define LED_STACKCREATED  0
+#define LED_INIRQ         0
+#define LED_SIGNAL        0
+#define LED_ASSERTION     0
+#define LED_PANIC         0
+
+/* Button definitions ***************************************************************/
+/* The NuTiny has no buttons */
+
+#define NUM_BUTTONS        0
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+/************************************************************************************
+ * Name: kl_boardinitialize
+ *
+ * Description:
+ *   All K25Z architectures must provide the following entry point.  This entry point
+ *   is called early in the intitialization -- after all memory has been configured
+ *   and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void kl_boardinitialize(void);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif  /* __CONFIGS_FREEDOM_KL25Z_INCLUDE_BOARD_H */
diff --git a/nuttx/configs/freedom-kl25z/nsh/Make.defs b/nuttx/configs/freedom-kl25z/nsh/Make.defs
new file mode 100644
index 000000000..b2e6b718e
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/nsh/Make.defs
@@ -0,0 +1,122 @@
+############################################################################
+# configs/freedom-kl25z/nsh/Make.defs
+#
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. 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.
+# 3. Neither the name NuttX 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 OWNER 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 ${TOPDIR}/.config
+include ${TOPDIR}/tools/Config.mk
+include ${TOPDIR}/arch/arm/src/armv6-m/Toolchain.defs
+
+LDSCRIPT = ld.script
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
+  MAXOPTIMIZATION = -O2
+else
+  # Linux/Cygwin-native toolchain
+  ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+AR = $(ARCROSSDEV)ar rcs
+NM = $(ARCROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
+ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g
+else
+  ARCHOPTIMIZATION = $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fno-rtti
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX = -Wall -Wshadow
+ARCHDEFINES =
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+ifneq ($(CROSSDEV),arm-nuttx-elf-)
+  LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  LDFLAGS += -g
+endif
+
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS =
+ifeq ($(CONFIG_HOST_WINDOWS),y)
+  HOSTEXEEXT = .exe
+else
+  HOSTEXEEXT =
+endif
+
+ifeq ($(WINTOOL),y)
+  # Windows-native host tools
+  DIRLINK = $(TOPDIR)/tools/copydir.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mknulldeps.sh
+else
+  # Linux/Cygwin-native host tools 
+  MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
+endif
+
diff --git a/nuttx/configs/freedom-kl25z/nsh/defconfig b/nuttx/configs/freedom-kl25z/nsh/defconfig
new file mode 100644
index 000000000..b9071686b
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/nsh/defconfig
@@ -0,0 +1,651 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# Nuttx/ Configuration
+#
+CONFIG_NUTTX_NEWCONFIG=y
+
+#
+# Build Setup
+#
+# CONFIG_EXPERIMENTAL is not set
+CONFIG_HOST_LINUX=y
+# CONFIG_HOST_OSX is not set
+# CONFIG_HOST_WINDOWS is not set
+# CONFIG_HOST_OTHER is not set
+# CONFIG_WINDOWS_NATIVE is not set
+# CONFIG_WINDOWS_CYGWIN is not set
+# CONFIG_WINDOWS_MSYS is not set
+# CONFIG_WINDOWS_OTHER is not set
+
+#
+# Build Configuration
+#
+# CONFIG_APPS_DIR="../apps"
+# CONFIG_BUILD_2PASS is not set
+
+#
+# Binary Output Formats
+#
+# CONFIG_RRLOAD_BINARY is not set
+CONFIG_INTELHEX_BINARY=y
+# CONFIG_MOTOROLA_SREC is not set
+CONFIG_RAW_BINARY=y
+
+#
+# Customize Header Files
+#
+# CONFIG_ARCH_STDBOOL_H is not set
+# CONFIG_ARCH_MATH_H is not set
+# CONFIG_ARCH_FLOAT_H is not set
+# CONFIG_ARCH_STDARG_H is not set
+
+#
+# Debug Options
+#
+CONFIG_DEBUG=y
+CONFIG_DEBUG_SCHED=y
+# CONFIG_DEBUG_SYMBOLS is not set
+
+#
+# System Type
+#
+# CONFIG_ARCH_8051 is not set
+CONFIG_ARCH_ARM=y
+# CONFIG_ARCH_AVR is not set
+# CONFIG_ARCH_HC is not set
+# CONFIG_ARCH_MIPS is not set
+# CONFIG_ARCH_RGMP is not set
+# CONFIG_ARCH_SH is not set
+# CONFIG_ARCH_SIM is not set
+# CONFIG_ARCH_X86 is not set
+# CONFIG_ARCH_Z16 is not set
+# CONFIG_ARCH_Z80 is not set
+CONFIG_ARCH="arm"
+
+#
+# ARM Options
+#
+# CONFIG_ARCH_CHIP_C5471 is not set
+# CONFIG_ARCH_CHIP_CALYPSO is not set
+# CONFIG_ARCH_CHIP_DM320 is not set
+# CONFIG_ARCH_CHIP_IMX is not set
+# CONFIG_ARCH_CHIP_KINETIS is not set
+# CONFIG_ARCH_CHIP_LM is not set
+# CONFIG_ARCH_CHIP_LPC17XX is not set
+# CONFIG_ARCH_CHIP_LPC214X is not set
+# CONFIG_ARCH_CHIP_LPC2378 is not set
+# CONFIG_ARCH_CHIP_LPC31XX is not set
+# CONFIG_ARCH_CHIP_LPC43XX is not set
+CONFIG_ARCH_CHIP_KL=y
+# CONFIG_ARCH_CHIP_SAM3U is not set
+# CONFIG_ARCH_CHIP_STM32 is not set
+# CONFIG_ARCH_CHIP_STR71X is not set
+CONFIG_ARCH_CORTEXM0=y
+CONFIG_ARCH_FAMILY="armv6-m"
+CONFIG_ARCH_CHIP="kl"
+CONFIG_ARCH_HAVE_CMNVECTOR=y
+# CONFIG_ARMV7M_CMNVECTOR is not set
+# CONFIG_ARCH_HAVE_MPU is not set
+CONFIG_BOARD_LOOPSPERMSEC=2988
+# CONFIG_ARCH_CALIBRATION is not set
+
+#
+# ARMV6M Configuration Options
+#
+# CONFIG_ARMV6M_TOOLCHAIN_ATOLLIC is not set
+# CONFIG_ARMV6M_TOOLCHAIN_BUILDROOT is not set
+# CONFIG_ARMV6M_TOOLCHAIN_CODEREDW is not set
+# CONFIG_ARMV6M_TOOLCHAIN_CODESOURCERYW is not set
+# CONFIG_ARMV6M_TOOLCHAIN_DEVKITARM is not set
+CONFIG_ARMV6M_TOOLCHAIN_GNU_EABI=y
+
+#
+# KL25Z128/120 Configuration Options
+#
+# CONFIG_ARCH_CHIP_KL25Z128LC1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD2BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RC1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD2BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LE3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RE3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VD2AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VE3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LC1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD2BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RC1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD2BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD3AN is not set
+CONFIG_ARCH_CHIP_MKL25Z128=y
+# CONFIG_ARCH_CHIP_KL25Z128RD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RE3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VD2AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VE3AN is not set
+CONFIG_ARCH_FAMILY_L20=y
+
+#
+# KL25Z Peripheral Support
+#
+# CONFIG_KL_PDMA is not set
+# CONFIG_KL_FMC is not set
+# CONFIG_KL_EBI is not set
+# CONFIG_KL_WDT is not set
+# CONFIG_KL_RTC is not set
+# CONFIG_KL_TMR0 is not set
+# CONFIG_KL_TMR1 is not set
+# CONFIG_KL_TIMR2 is not set
+# CONFIG_KL_TIMR3 is not set
+# CONFIG_KL_I2C0 is not set
+# CONFIG_KL_I2C1 is not set
+# CONFIG_KL_SPI0 is not set
+# CONFIG_KL_SPI1 is not set
+# CONFIG_KL_SPI2 is not set
+# CONFIG_KL_SPI3 is not set
+# CONFIG_KL_PWM0 is not set
+# CONFIG_KL_PWM1 is not set
+# CONFIG_KL_PWM2 is not set
+# CONFIG_KL_PWM3 is not set
+# CONFIG_KL_PWM4 is not set
+# CONFIG_KL_PWM5 is not set
+# CONFIG_KL_PWM6 is not set
+# CONFIG_KL_PWM7 is not set
+CONFIG_KL_UART0=y
+# CONFIG_KL_UART1 is not set
+# CONFIG_KL_USBD is not set
+# CONFIG_KL_ACMP is not set
+# CONFIG_KL_ADC is not set
+# CONFIG_KL_PS2 is not set
+# CONFIG_KL_I2S is not set
+CONFIG_KL_INTHI=y
+CONFIG_KL_SYSTICK_CORECLK=y
+# CONFIG_KL_SYSTICK_XTALHI is not set
+# CONFIG_KL_SYSTICK_XTALLO is not set
+# CONFIG_KL_SYSTICK_XTALHId2 is not set
+# CONFIG_KL_SYSTICK_HCLKd2 is not set
+# CONFIG_KL_SYSTICK_INTHId2 is not set
+# CONFIG_KL_UARTCLK_XTALHI is not set
+# CONFIG_KL_UARTCLK_PLL is not set
+CONFIG_KL_UARTCLK_INTHI=y
+
+#
+# External Memory Configuration
+#
+
+#
+# Architecture Options
+#
+# CONFIG_ARCH_NOINTC is not set
+# CONFIG_ARCH_VECNOTIRQ is not set
+# CONFIG_ARCH_DMA is not set
+CONFIG_ARCH_IRQPRIO=y
+# CONFIG_CUSTOM_STACK is not set
+# CONFIG_ADDRENV is not set
+CONFIG_ARCH_HAVE_VFORK=y
+CONFIG_ARCH_STACKDUMP=y
+# CONFIG_ENDIAN_BIG is not set
+# CONFIG_ARCH_HAVE_RAMFUNCS is not set
+
+#
+# Board Settings
+#
+# CONFIG_ARCH_CALIBRATION is not set
+CONFIG_DRAM_START=0x1FFFF000
+CONFIG_DRAM_SIZE=16384
+CONFIG_ARCH_HAVE_INTERRUPTSTACK=y
+CONFIG_ARCH_INTERRUPTSTACK=0
+
+#
+# Boot options
+#
+# CONFIG_BOOT_RUNFROMEXTSRAM is not set
+CONFIG_BOOT_RUNFROMFLASH=y
+# CONFIG_BOOT_RUNFROMISRAM is not set
+# CONFIG_BOOT_RUNFROMSDRAM is not set
+# CONFIG_BOOT_COPYTORAM is not set
+
+#
+# Board Selection
+#
+CONFIG_ARCH_BOARD_FREEDOM_KL25Z=y
+# CONFIG_ARCH_BOARD_CUSTOM is not set
+CONFIG_ARCH_BOARD="freedom-kl25z"
+
+#
+# Common Board Options
+#
+CONFIG_ARCH_HAVE_LEDS=y
+CONFIG_ARCH_LEDS=y
+CONFIG_NSH_MMCSDMINOR=0
+
+#
+# Board-Specific Options
+#
+
+#
+# RTOS Features
+#
+# CONFIG_BOARD_INITIALIZE is not set
+CONFIG_MSEC_PER_TICK=10
+CONFIG_RR_INTERVAL=200
+# CONFIG_SCHED_INSTRUMENTATION is not set
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_SCHED_HAVE_PARENT=y
+CONFIG_SCHED_CHILD_STATUS=y
+CONFIG_PREALLOC_CHILDSTATUS=0
+# CONFIG_JULIAN_TIME is not set
+CONFIG_START_YEAR=2013
+CONFIG_START_MONTH=2
+CONFIG_START_DAY=26
+CONFIG_DEV_CONSOLE=y
+# CONFIG_MUTEX_TYPES is not set
+# CONFIG_PRIORITY_INHERITANCE is not set
+# CONFIG_FDCLONE_DISABLE is not set
+# CONFIG_FDCLONE_STDIO is not set
+CONFIG_SDCLONE_DISABLE=y
+# CONFIG_SCHED_WORKQUEUE is not set
+CONFIG_SCHED_WAITPID=y
+# CONFIG_SCHED_STARTHOOK is not set
+# CONFIG_SCHED_ATEXIT is not set
+# CONFIG_SCHED_ONEXIT is not set
+CONFIG_USER_ENTRYPOINT="nsh_main"
+CONFIG_DISABLE_OS_API=y
+# CONFIG_DISABLE_CLOCK is not set
+# CONFIG_DISABLE_POSIX_TIMERS is not set
+# CONFIG_DISABLE_PTHREAD is not set
+# CONFIG_DISABLE_SIGNALS is not set
+# CONFIG_DISABLE_MQUEUE is not set
+CONFIG_DISABLE_ENVIRON=y
+
+#
+# Signal Numbers
+#
+CONFIG_SIG_SIGUSR1=1
+CONFIG_SIG_SIGUSR2=2
+CONFIG_SIG_SIGALARM=3
+CONFIG_SIG_SIGCONDTIMEDOUT=16
+
+#
+# Sizes of configurable things (0 disables)
+#
+CONFIG_MAX_TASKS=8
+CONFIG_MAX_TASK_ARGS=4
+CONFIG_NPTHREAD_KEYS=4
+CONFIG_NFILE_DESCRIPTORS=8
+CONFIG_NFILE_STREAMS=8
+CONFIG_NAME_MAX=32
+CONFIG_PREALLOC_MQ_MSGS=4
+CONFIG_MQ_MAXMSGSIZE=32
+CONFIG_MAX_WDOGPARMS=2
+CONFIG_PREALLOC_WDOGS=4
+CONFIG_PREALLOC_TIMERS=4
+
+#
+# Stack and heap information
+#
+CONFIG_IDLETHREAD_STACKSIZE=1024
+CONFIG_USERMAIN_STACKSIZE=1536
+CONFIG_PTHREAD_STACK_MIN=256
+CONFIG_PTHREAD_STACK_DEFAULT=1536
+
+#
+# Device Drivers
+#
+CONFIG_DISABLE_POLL=y
+CONFIG_DEV_NULL=y
+# CONFIG_DEV_ZERO is not set
+# CONFIG_LOOP is not set
+# CONFIG_RAMDISK is not set
+# CONFIG_CAN is not set
+# CONFIG_PWM is not set
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_RTC is not set
+# CONFIG_WATCHDOG is not set
+# CONFIG_ANALOG is not set
+# CONFIG_BCH is not set
+# CONFIG_INPUT is not set
+# CONFIG_LCD is not set
+# CONFIG_MMCSD is not set
+# CONFIG_MTD is not set
+# CONFIG_PIPES is not set
+# CONFIG_PM is not set
+# CONFIG_POWER is not set
+# CONFIG_SENSORS is not set
+# CONFIG_SERCOMM_CONSOLE is not set
+CONFIG_SERIAL=y
+CONFIG_DEV_LOWCONSOLE=y
+# CONFIG_16550_UART is not set
+CONFIG_ARCH_HAVE_UART0=y
+CONFIG_MCU_SERIAL=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+# CONFIG_NO_SERIAL_CONSOLE is not set
+
+#
+# UART0 Configuration
+#
+CONFIG_UART0_RXBUFSIZE=256
+CONFIG_UART0_TXBUFSIZE=256
+CONFIG_UART0_BAUD=115200
+CONFIG_UART0_BITS=8
+CONFIG_UART0_PARITY=0
+CONFIG_UART0_2STOP=0
+# CONFIG_USBDEV is not set
+# CONFIG_USBHOST is not set
+# CONFIG_WIRELESS is not set
+
+#
+# System Logging Device Options
+#
+
+#
+# System Logging
+#
+# CONFIG_RAMLOG is not set
+
+#
+# Networking Support
+#
+# CONFIG_NET is not set
+
+#
+# File Systems
+#
+
+#
+# File system configuration
+#
+CONFIG_DISABLE_MOUNTPOINT=y
+# CONFIG_FS_RAMMAP is not set
+
+#
+# System Logging
+#
+# CONFIG_SYSLOG_ENABLE is not set
+# CONFIG_SYSLOG is not set
+
+#
+# Graphics Support
+#
+# CONFIG_NX is not set
+
+#
+# Memory Management
+#
+CONFIG_MM_SMALL=y
+CONFIG_MM_REGIONS=1
+# CONFIG_GRAN is not set
+
+#
+# Binary Formats
+#
+# CONFIG_BINFMT_DISABLE is not set
+# CONFIG_NXFLAT is not set
+# CONFIG_ELF is not set
+# CONFIG_BUILTIN is not set
+# CONFIG_PIC is not set
+# CONFIG_SYMTAB_ORDEREDBYNAME is not set
+
+#
+# Library Routines
+#
+
+#
+# Standard C Library Options
+#
+CONFIG_STDIO_BUFFER_SIZE=0
+CONFIG_STDIO_LINEBUFFER=y
+CONFIG_NUNGET_CHARS=2
+# CONFIG_LIBM is not set
+# CONFIG_NOPRINTF_FIELDWIDTH is not set
+# CONFIG_LIBC_FLOATINGPOINT is not set
+# CONFIG_EOL_IS_CR is not set
+# CONFIG_EOL_IS_LF is not set
+# CONFIG_EOL_IS_BOTH_CRLF is not set
+CONFIG_EOL_IS_EITHER_CRLF=y
+# CONFIG_LIBC_EXECFUNCS is not set
+CONFIG_POSIX_SPAWN_PROXY_STACKSIZE=1024
+CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=1536
+# CONFIG_LIBC_STRERROR is not set
+# CONFIG_LIBC_PERROR_STDOUT is not set
+CONFIG_ARCH_LOWPUTC=y
+CONFIG_LIB_SENDFILE_BUFSIZE=512
+# CONFIG_ARCH_ROMGETC is not set
+# CONFIG_ARCH_OPTIMIZED_FUNCTIONS is not set
+
+#
+# Non-standard Helper Functions
+#
+# CONFIG_LIB_KBDCODEC is not set
+
+#
+# Basic CXX Support
+#
+# CONFIG_C99_BOOL8 is not set
+# CONFIG_HAVE_CXX is not set
+
+#
+# Application Configuration
+#
+
+#
+# Built-In Applications
+#
+
+#
+# Examples
+#
+# CONFIG_EXAMPLES_BUTTONS is not set
+# CONFIG_EXAMPLES_CAN is not set
+# CONFIG_EXAMPLES_COMPOSITE is not set
+# CONFIG_EXAMPLES_DHCPD is not set
+# CONFIG_EXAMPLES_ELF is not set
+# CONFIG_EXAMPLES_FTPC is not set
+# CONFIG_EXAMPLES_FTPD is not set
+# CONFIG_EXAMPLES_HELLO is not set
+# CONFIG_EXAMPLES_HELLOXX is not set
+# CONFIG_EXAMPLES_JSON is not set
+# CONFIG_EXAMPLES_HIDKBD is not set
+# CONFIG_EXAMPLES_KEYPADTEST is not set
+# CONFIG_EXAMPLES_IGMP is not set
+# CONFIG_EXAMPLES_LCDRW is not set
+# CONFIG_EXAMPLES_MM is not set
+# CONFIG_EXAMPLES_MOUNT is not set
+# CONFIG_EXAMPLES_MODBUS is not set
+CONFIG_EXAMPLES_NSH=y
+# CONFIG_EXAMPLES_NULL is not set
+# CONFIG_EXAMPLES_NX is not set
+# CONFIG_EXAMPLES_NXCONSOLE is not set
+# CONFIG_EXAMPLES_NXFFS is not set
+# CONFIG_EXAMPLES_NXFLAT is not set
+# CONFIG_EXAMPLES_NXHELLO is not set
+# CONFIG_EXAMPLES_NXIMAGE is not set
+# CONFIG_EXAMPLES_NXLINES is not set
+# CONFIG_EXAMPLES_NXTEXT is not set
+# CONFIG_EXAMPLES_OSTEST is not set
+# CONFIG_EXAMPLES_PASHELLO is not set
+# CONFIG_EXAMPLES_PIPE is not set
+# CONFIG_EXAMPLES_POLL is not set
+# CONFIG_EXAMPLES_POSIXSPAWN is not set
+# CONFIG_EXAMPLES_QENCODER is not set
+# CONFIG_EXAMPLES_RGMP is not set
+# CONFIG_EXAMPLES_ROMFS is not set
+# CONFIG_EXAMPLES_SENDMAIL is not set
+# CONFIG_EXAMPLES_SERLOOP is not set
+# CONFIG_EXAMPLES_TELNETD is not set
+# CONFIG_EXAMPLES_THTTPD is not set
+# CONFIG_EXAMPLES_TIFF is not set
+# CONFIG_EXAMPLES_TOUCHSCREEN is not set
+# CONFIG_EXAMPLES_UDP is not set
+# CONFIG_EXAMPLES_UIP is not set
+# CONFIG_EXAMPLES_USBSERIAL is not set
+# CONFIG_EXAMPLES_USBMSC is not set
+# CONFIG_EXAMPLES_USBTERM is not set
+# CONFIG_EXAMPLES_WATCHDOG is not set
+
+#
+# Interpreters
+#
+# CONFIG_INTERPRETERS_FICL is not set
+# CONFIG_INTERPRETERS_PCODE is not set
+
+#
+# Network Utilities
+#
+
+#
+# Networking Utilities
+#
+# CONFIG_NETUTILS_CODECS is not set
+# CONFIG_NETUTILS_DHCPC is not set
+# CONFIG_NETUTILS_DHCPD is not set
+# CONFIG_NETUTILS_FTPC is not set
+# CONFIG_NETUTILS_FTPD is not set
+# CONFIG_NETUTILS_JSON is not set
+# CONFIG_NETUTILS_RESOLV is not set
+# CONFIG_NETUTILS_SMTP is not set
+# CONFIG_NETUTILS_TELNETD is not set
+# CONFIG_NETUTILS_TFTPC is not set
+# CONFIG_NETUTILS_THTTPD is not set
+# CONFIG_NETUTILS_UIPLIB is not set
+# CONFIG_NETUTILS_WEBCLIENT is not set
+
+#
+# FreeModBus
+#
+# CONFIG_MODBUS is not set
+
+#
+# NSH Library
+#
+CONFIG_NSH_LIBRARY=y
+
+#
+# Disable Individual commands
+#
+# CONFIG_NSH_DISABLE_CAT is not set
+CONFIG_NSH_DISABLE_CD=y
+CONFIG_NSH_DISABLE_CP=y
+CONFIG_NSH_DISABLE_DD=y
+# CONFIG_NSH_DISABLE_ECHO is not set
+# CONFIG_NSH_DISABLE_EXEC is not set
+# CONFIG_NSH_DISABLE_EXIT is not set
+# CONFIG_NSH_DISABLE_FREE is not set
+CONFIG_NSH_DISABLE_GET=y
+# CONFIG_NSH_DISABLE_HELP is not set
+# CONFIG_NSH_DISABLE_HEXDUMP is not set
+CONFIG_NSH_DISABLE_IFCONFIG=y
+# CONFIG_NSH_DISABLE_KILL is not set
+CONFIG_NSH_DISABLE_LOSETUP=y
+# CONFIG_NSH_DISABLE_LS is not set
+# CONFIG_NSH_DISABLE_MB is not set
+CONFIG_NSH_DISABLE_MKDIR=y
+CONFIG_NSH_DISABLE_MKFATFS=y
+# CONFIG_NSH_DISABLE_MKFIFO is not set
+CONFIG_NSH_DISABLE_MKRD=y
+# CONFIG_NSH_DISABLE_MH is not set
+CONFIG_NSH_DISABLE_MOUNT=y
+# CONFIG_NSH_DISABLE_MW is not set
+CONFIG_NSH_DISABLE_NSFMOUNT=y
+# CONFIG_NSH_DISABLE_PS is not set
+CONFIG_NSH_DISABLE_PING=y
+CONFIG_NSH_DISABLE_PUT=y
+# CONFIG_NSH_DISABLE_PWD is not set
+CONFIG_NSH_DISABLE_RM=y
+CONFIG_NSH_DISABLE_RMDIR=y
+# CONFIG_NSH_DISABLE_SET is not set
+# CONFIG_NSH_DISABLE_SH is not set
+# CONFIG_NSH_DISABLE_SLEEP is not set
+# CONFIG_NSH_DISABLE_TEST is not set
+CONFIG_NSH_DISABLE_UMOUNT=y
+# CONFIG_NSH_DISABLE_UNSET is not set
+# CONFIG_NSH_DISABLE_USLEEP is not set
+CONFIG_NSH_DISABLE_WGET=y
+# CONFIG_NSH_DISABLE_XD is not set
+CONFIG_NSH_CODECS_BUFSIZE=128
+CONFIG_NSH_FILEIOSIZE=64
+CONFIG_NSH_LINELEN=80
+CONFIG_NSH_NESTDEPTH=3
+CONFIG_NSH_DISABLESCRIPT=y
+# CONFIG_NSH_DISABLEBG is not set
+CONFIG_NSH_CONSOLE=y
+
+#
+# USB Trace Support
+#
+# CONFIG_NSH_CONDEV is not set
+# CONFIG_NSH_ARCHINIT is not set
+
+#
+# NxWidgets/NxWM
+#
+
+#
+# System NSH Add-Ons
+#
+
+#
+# Custom Free Memory Command
+#
+# CONFIG_SYSTEM_FREE is not set
+
+#
+# I2C tool
+#
+
+#
+# FLASH Program Installation
+#
+# CONFIG_SYSTEM_INSTALL is not set
+
+#
+# readline()
+#
+CONFIG_SYSTEM_READLINE=y
+CONFIG_READLINE_ECHO=y
+
+#
+# Power Off
+#
+# CONFIG_SYSTEM_POWEROFF is not set
+
+#
+# RAMTRON
+#
+# CONFIG_SYSTEM_RAMTRON is not set
+
+#
+# SD Card
+#
+# CONFIG_SYSTEM_SDCARD is not set
+
+#
+# Sysinfo
+#
+# CONFIG_SYSTEM_SYSINFO is not set
+
+#
+# USB Monitor
+#
+
+# Application configuration
+
+
+# Application configuration
+
+
+# Application configuration
+
+
+# Application configuration
+
+
+# Application configuration
+
+CONFIG_APPS_DIR="../apps"
diff --git a/nuttx/configs/freedom-kl25z/nsh/setenv.sh b/nuttx/configs/freedom-kl25z/nsh/setenv.sh
new file mode 100644
index 000000000..edcf820ca
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/nsh/setenv.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+# configs/freedom-kl25z/nsh/setenv.sh
+#
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. 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.
+# 3. Neither the name NuttX 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 OWNER 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.
+#
+
+if [ "$_" = "$0" ] ; then
+  echo "You must source this script, not run it!" 1>&2
+  exit 1
+fi
+
+WD=`pwd`
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the RIDE
+# toolchain under windows.  You will also have to edit this if you install
+# the RIDE toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Raisonance/Ride/arm-gcc/bin"
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# These are the Cygwin paths to the locations where I installed the Atollic
+# toolchain under windows.  You will also have to edit this if you install
+# the Atollic toolchain in any other location.  /usr/bin is added before
+# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
+# at those locations as well.
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
+
+echo "PATH : ${PATH}"
diff --git a/nuttx/configs/freedom-kl25z/ostest/Make.defs b/nuttx/configs/freedom-kl25z/ostest/Make.defs
new file mode 100644
index 000000000..5ffe7cb83
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/ostest/Make.defs
@@ -0,0 +1,122 @@
+############################################################################
+# configs/freedom-kl25z/ostest/Make.defs
+#
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. 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.
+# 3. Neither the name NuttX 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 OWNER 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 ${TOPDIR}/.config
+include ${TOPDIR}/tools/Config.mk
+include ${TOPDIR}/arch/arm/src/armv6-m/Toolchain.defs
+
+LDSCRIPT = ld.script
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
+  MAXOPTIMIZATION = -O2
+else
+  # Linux/Cygwin-native toolchain
+  ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+AR = $(ARCROSSDEV)ar rcs
+NM = $(ARCROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
+ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g
+else
+  ARCHOPTIMIZATION = $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fno-rtti
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX = -Wall -Wshadow
+ARCHDEFINES =
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+ifneq ($(CROSSDEV),arm-nuttx-elf-)
+  LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  LDFLAGS += -g
+endif
+
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS =
+ifeq ($(CONFIG_HOST_WINDOWS),y)
+  HOSTEXEEXT = .exe
+else
+  HOSTEXEEXT =
+endif
+
+ifeq ($(WINTOOL),y)
+  # Windows-native host tools
+  DIRLINK = $(TOPDIR)/tools/copydir.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mknulldeps.sh
+else
+  # Linux/Cygwin-native host tools 
+  MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
+endif
+
diff --git a/nuttx/configs/freedom-kl25z/ostest/defconfig b/nuttx/configs/freedom-kl25z/ostest/defconfig
new file mode 100644
index 000000000..61e10e3ec
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/ostest/defconfig
@@ -0,0 +1,579 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# Nuttx/ Configuration
+#
+CONFIG_NUTTX_NEWCONFIG=y
+
+#
+# Build Setup
+#
+# CONFIG_EXPERIMENTAL is not set
+CONFIG_HOST_LINUX=y
+# CONFIG_HOST_OSX is not set
+# CONFIG_HOST_WINDOWS is not set
+# CONFIG_HOST_OTHER is not set
+
+#
+# Build Configuration
+#
+# CONFIG_APPS_DIR="../apps"
+# CONFIG_BUILD_2PASS is not set
+
+#
+# Binary Output Formats
+#
+# CONFIG_RRLOAD_BINARY is not set
+CONFIG_INTELHEX_BINARY=y
+# CONFIG_MOTOROLA_SREC is not set
+CONFIG_RAW_BINARY=y
+
+#
+# Customize Header Files
+#
+# CONFIG_ARCH_STDBOOL_H is not set
+# CONFIG_ARCH_MATH_H is not set
+# CONFIG_ARCH_FLOAT_H is not set
+# CONFIG_ARCH_STDARG_H is not set
+
+#
+# Debug Options
+#
+CONFIG_DEBUG=y
+CONFIG_DEBUG_SCHED=y
+# CONFIG_DEBUG_SYMBOLS is not set
+
+#
+# System Type
+#
+# CONFIG_ARCH_8051 is not set
+CONFIG_ARCH_ARM=y
+# CONFIG_ARCH_AVR is not set
+# CONFIG_ARCH_HC is not set
+# CONFIG_ARCH_MIPS is not set
+# CONFIG_ARCH_RGMP is not set
+# CONFIG_ARCH_SH is not set
+# CONFIG_ARCH_SIM is not set
+# CONFIG_ARCH_X86 is not set
+# CONFIG_ARCH_Z16 is not set
+# CONFIG_ARCH_Z80 is not set
+CONFIG_ARCH="arm"
+
+#
+# ARM Options
+#
+# CONFIG_ARCH_CHIP_C5471 is not set
+# CONFIG_ARCH_CHIP_CALYPSO is not set
+# CONFIG_ARCH_CHIP_DM320 is not set
+# CONFIG_ARCH_CHIP_IMX is not set
+# CONFIG_ARCH_CHIP_KINETIS is not set
+# CONFIG_ARCH_CHIP_LM is not set
+# CONFIG_ARCH_CHIP_LPC17XX is not set
+# CONFIG_ARCH_CHIP_LPC214X is not set
+# CONFIG_ARCH_CHIP_LPC2378 is not set
+# CONFIG_ARCH_CHIP_LPC31XX is not set
+# CONFIG_ARCH_CHIP_LPC43XX is not set
+CONFIG_ARCH_CHIP_KL=y
+# CONFIG_ARCH_CHIP_SAM3U is not set
+# CONFIG_ARCH_CHIP_STM32 is not set
+# CONFIG_ARCH_CHIP_STR71X is not set
+CONFIG_ARCH_CORTEXM0=y
+CONFIG_ARCH_FAMILY="armv6-m"
+CONFIG_ARCH_CHIP="kl"
+CONFIG_ARCH_HAVE_CMNVECTOR=y
+# CONFIG_ARMV7M_CMNVECTOR is not set
+# CONFIG_ARCH_HAVE_MPU is not set
+CONFIG_BOARD_LOOPSPERMSEC=2988
+# CONFIG_ARCH_CALIBRATION is not set
+
+#
+# ARMV6M Configuration Options
+#
+# CONFIG_ARMV6M_TOOLCHAIN_ATOLLIC is not set
+# CONFIG_ARMV6M_TOOLCHAIN_BUILDROOT is not set
+# CONFIG_ARMV6M_TOOLCHAIN_CODEREDW is not set
+# CONFIG_ARMV6M_TOOLCHAIN_CODESOURCERYW is not set
+# CONFIG_ARMV6M_TOOLCHAIN_DEVKITARM is not set
+CONFIG_ARMV6M_TOOLCHAIN_GNU_EABI=y
+
+#
+# KL25Z128/120 Configuration Options
+#
+# CONFIG_ARCH_CHIP_KL25Z128LC1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD2BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RC1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD2BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LE3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RE3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VD2AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VE3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LC1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD2BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RC1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD1BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RD2BN is not set
+# CONFIG_ARCH_CHIP_KL25Z128LD3AN is not set
+CONFIG_ARCH_CHIP_MKL25Z128=y
+# CONFIG_ARCH_CHIP_KL25Z128RD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128RE3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VD2AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VD3AN is not set
+# CONFIG_ARCH_CHIP_KL25Z128VE3AN is not set
+CONFIG_ARCH_FAMILY_L20=y
+
+#
+# KL25Z Peripheral Support
+#
+# CONFIG_KL_PDMA is not set
+# CONFIG_KL_FMC is not set
+# CONFIG_KL_EBI is not set
+# CONFIG_KL_WDT is not set
+# CONFIG_KL_RTC is not set
+# CONFIG_KL_TMR0 is not set
+# CONFIG_KL_TMR1 is not set
+# CONFIG_KL_TIMR2 is not set
+# CONFIG_KL_TIMR3 is not set
+# CONFIG_KL_I2C0 is not set
+# CONFIG_KL_I2C1 is not set
+# CONFIG_KL_SPI0 is not set
+# CONFIG_KL_SPI1 is not set
+# CONFIG_KL_SPI2 is not set
+# CONFIG_KL_SPI3 is not set
+# CONFIG_KL_PWM0 is not set
+# CONFIG_KL_PWM1 is not set
+# CONFIG_KL_PWM2 is not set
+# CONFIG_KL_PWM3 is not set
+# CONFIG_KL_PWM4 is not set
+# CONFIG_KL_PWM5 is not set
+# CONFIG_KL_PWM6 is not set
+# CONFIG_KL_PWM7 is not set
+CONFIG_KL_UART0=y
+# CONFIG_KL_UART1 is not set
+# CONFIG_KL_USBD is not set
+# CONFIG_KL_ACMP is not set
+# CONFIG_KL_ADC is not set
+# CONFIG_KL_PS2 is not set
+# CONFIG_KL_I2S is not set
+CONFIG_KL_INTHI=y
+CONFIG_KL_SYSTICK_CORECLK=y
+# CONFIG_KL_SYSTICK_XTALHI is not set
+# CONFIG_KL_SYSTICK_XTALLO is not set
+# CONFIG_KL_SYSTICK_XTALHId2 is not set
+# CONFIG_KL_SYSTICK_HCLKd2 is not set
+# CONFIG_KL_SYSTICK_INTHId2 is not set
+# CONFIG_KL_UARTCLK_XTALHI is not set
+# CONFIG_KL_UARTCLK_PLL is not set
+CONFIG_KL_UARTCLK_INTHI=y
+
+#
+# External Memory Configuration
+#
+
+#
+# Architecture Options
+#
+# CONFIG_ARCH_NOINTC is not set
+# CONFIG_ARCH_VECNOTIRQ is not set
+# CONFIG_ARCH_DMA is not set
+CONFIG_ARCH_IRQPRIO=y
+# CONFIG_CUSTOM_STACK is not set
+# CONFIG_ADDRENV is not set
+CONFIG_ARCH_HAVE_VFORK=y
+CONFIG_ARCH_STACKDUMP=y
+# CONFIG_ENDIAN_BIG is not set
+# CONFIG_ARCH_HAVE_RAMFUNCS is not set
+
+#
+# Board Settings
+#
+# CONFIG_ARCH_CALIBRATION is not set
+CONFIG_DRAM_START=0x1FFFF000
+CONFIG_DRAM_SIZE=16384
+CONFIG_ARCH_HAVE_INTERRUPTSTACK=y
+CONFIG_ARCH_INTERRUPTSTACK=0
+
+#
+# Boot options
+#
+# CONFIG_BOOT_RUNFROMEXTSRAM is not set
+CONFIG_BOOT_RUNFROMFLASH=y
+# CONFIG_BOOT_RUNFROMISRAM is not set
+# CONFIG_BOOT_RUNFROMSDRAM is not set
+# CONFIG_BOOT_COPYTORAM is not set
+
+#
+# Board Selection
+#
+CONFIG_ARCH_BOARD_FREEDOM_KL25Z=y
+# CONFIG_ARCH_BOARD_CUSTOM is not set
+CONFIG_ARCH_BOARD="freedom-kl25z"
+
+#
+# Common Board Options
+#
+CONFIG_ARCH_HAVE_LEDS=y
+CONFIG_ARCH_LEDS=y
+
+#
+# Board-Specific Options
+#
+
+#
+# RTOS Features
+#
+# CONFIG_BOARD_INITIALIZE is not set
+CONFIG_MSEC_PER_TICK=10
+CONFIG_RR_INTERVAL=200
+# CONFIG_SCHED_INSTRUMENTATION is not set
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_SCHED_HAVE_PARENT=y
+CONFIG_SCHED_CHILD_STATUS=y
+CONFIG_PREALLOC_CHILDSTATUS=0
+# CONFIG_JULIAN_TIME is not set
+CONFIG_START_YEAR=2013
+CONFIG_START_MONTH=2
+CONFIG_START_DAY=22
+CONFIG_DEV_CONSOLE=y
+# CONFIG_MUTEX_TYPES is not set
+# CONFIG_PRIORITY_INHERITANCE is not set
+# CONFIG_FDCLONE_DISABLE is not set
+# CONFIG_FDCLONE_STDIO is not set
+CONFIG_SDCLONE_DISABLE=y
+# CONFIG_SCHED_WORKQUEUE is not set
+CONFIG_SCHED_WAITPID=y
+# CONFIG_SCHED_STARTHOOK is not set
+# CONFIG_SCHED_ATEXIT is not set
+# CONFIG_SCHED_ONEXIT is not set
+CONFIG_USER_ENTRYPOINT="ostest_main"
+CONFIG_DISABLE_OS_API=y
+# CONFIG_DISABLE_CLOCK is not set
+# CONFIG_DISABLE_POSIX_TIMERS is not set
+# CONFIG_DISABLE_PTHREAD is not set
+# CONFIG_DISABLE_SIGNALS is not set
+# CONFIG_DISABLE_MQUEUE is not set
+CONFIG_DISABLE_ENVIRON=y
+
+#
+# Signal Numbers
+#
+CONFIG_SIG_SIGUSR1=1
+CONFIG_SIG_SIGUSR2=2
+CONFIG_SIG_SIGALARM=3
+CONFIG_SIG_SIGCONDTIMEDOUT=16
+
+#
+# Sizes of configurable things (0 disables)
+#
+CONFIG_MAX_TASKS=8
+CONFIG_MAX_TASK_ARGS=4
+CONFIG_NPTHREAD_KEYS=4
+CONFIG_NFILE_DESCRIPTORS=8
+CONFIG_NFILE_STREAMS=8
+CONFIG_NAME_MAX=32
+CONFIG_PREALLOC_MQ_MSGS=4
+CONFIG_MQ_MAXMSGSIZE=32
+CONFIG_MAX_WDOGPARMS=2
+CONFIG_PREALLOC_WDOGS=4
+CONFIG_PREALLOC_TIMERS=4
+
+#
+# Stack and heap information
+#
+CONFIG_IDLETHREAD_STACKSIZE=1024
+CONFIG_USERMAIN_STACKSIZE=1536
+CONFIG_PTHREAD_STACK_MIN=256
+CONFIG_PTHREAD_STACK_DEFAULT=1536
+
+#
+# Device Drivers
+#
+CONFIG_DISABLE_POLL=y
+CONFIG_DEV_NULL=y
+# CONFIG_DEV_ZERO is not set
+# CONFIG_LOOP is not set
+# CONFIG_RAMDISK is not set
+# CONFIG_CAN is not set
+# CONFIG_PWM is not set
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_RTC is not set
+# CONFIG_WATCHDOG is not set
+# CONFIG_ANALOG is not set
+# CONFIG_BCH is not set
+# CONFIG_INPUT is not set
+# CONFIG_LCD is not set
+# CONFIG_MMCSD is not set
+# CONFIG_MTD is not set
+# CONFIG_PIPES is not set
+# CONFIG_PM is not set
+# CONFIG_POWER is not set
+# CONFIG_SENSORS is not set
+# CONFIG_SERCOMM_CONSOLE is not set
+CONFIG_SERIAL=y
+CONFIG_DEV_LOWCONSOLE=y
+# CONFIG_16550_UART is not set
+CONFIG_ARCH_HAVE_UART0=y
+CONFIG_MCU_SERIAL=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+# CONFIG_NO_SERIAL_CONSOLE is not set
+
+#
+# UART0 Configuration
+#
+CONFIG_UART0_RXBUFSIZE=256
+CONFIG_UART0_TXBUFSIZE=256
+CONFIG_UART0_BAUD=115200
+CONFIG_UART0_BITS=8
+CONFIG_UART0_PARITY=0
+CONFIG_UART0_2STOP=0
+# CONFIG_USBDEV is not set
+# CONFIG_USBHOST is not set
+# CONFIG_WIRELESS is not set
+
+#
+# System Logging Device Options
+#
+
+#
+# System Logging
+#
+# CONFIG_RAMLOG is not set
+
+#
+# Networking Support
+#
+# CONFIG_NET is not set
+
+#
+# File Systems
+#
+
+#
+# File system configuration
+#
+CONFIG_DISABLE_MOUNTPOINT=y
+# CONFIG_FS_RAMMAP is not set
+
+#
+# System Logging
+#
+# CONFIG_SYSLOG_ENABLE is not set
+# CONFIG_SYSLOG is not set
+
+#
+# Graphics Support
+#
+# CONFIG_NX is not set
+
+#
+# Memory Management
+#
+CONFIG_MM_SMALL=y
+CONFIG_MM_REGIONS=1
+# CONFIG_GRAN is not set
+
+#
+# Binary Formats
+#
+# CONFIG_BINFMT_DISABLE is not set
+# CONFIG_NXFLAT is not set
+# CONFIG_ELF is not set
+# CONFIG_BUILTIN is not set
+# CONFIG_PIC is not set
+# CONFIG_SYMTAB_ORDEREDBYNAME is not set
+
+#
+# Library Routines
+#
+
+#
+# Standard C Library Options
+#
+CONFIG_STDIO_BUFFER_SIZE=0
+CONFIG_STDIO_LINEBUFFER=y
+CONFIG_NUNGET_CHARS=2
+# CONFIG_LIBM is not set
+# CONFIG_NOPRINTF_FIELDWIDTH is not set
+# CONFIG_LIBC_FLOATINGPOINT is not set
+# CONFIG_EOL_IS_CR is not set
+# CONFIG_EOL_IS_LF is not set
+# CONFIG_EOL_IS_BOTH_CRLF is not set
+CONFIG_EOL_IS_EITHER_CRLF=y
+# CONFIG_LIBC_EXECFUNCS is not set
+CONFIG_POSIX_SPAWN_PROXY_STACKSIZE=1024
+CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=1536
+# CONFIG_LIBC_STRERROR is not set
+# CONFIG_LIBC_PERROR_STDOUT is not set
+CONFIG_ARCH_LOWPUTC=y
+CONFIG_LIB_SENDFILE_BUFSIZE=512
+# CONFIG_ARCH_ROMGETC is not set
+# CONFIG_ARCH_OPTIMIZED_FUNCTIONS is not set
+
+#
+# Non-standard Helper Functions
+#
+# CONFIG_LIB_KBDCODEC is not set
+
+#
+# Basic CXX Support
+#
+# CONFIG_C99_BOOL8 is not set
+# CONFIG_HAVE_CXX is not set
+
+#
+# Application Configuration
+#
+
+#
+# Built-In Applications
+#
+
+#
+# Examples
+#
+# CONFIG_EXAMPLES_BUTTONS is not set
+# CONFIG_EXAMPLES_CAN is not set
+# CONFIG_EXAMPLES_COMPOSITE is not set
+# CONFIG_EXAMPLES_DHCPD is not set
+# CONFIG_EXAMPLES_ELF is not set
+# CONFIG_EXAMPLES_FTPC is not set
+# CONFIG_EXAMPLES_FTPD is not set
+# CONFIG_EXAMPLES_HELLO is not set
+# CONFIG_EXAMPLES_HELLOXX is not set
+# CONFIG_EXAMPLES_JSON is not set
+# CONFIG_EXAMPLES_HIDKBD is not set
+# CONFIG_EXAMPLES_KEYPADTEST is not set
+# CONFIG_EXAMPLES_IGMP is not set
+# CONFIG_EXAMPLES_LCDRW is not set
+# CONFIG_EXAMPLES_MM is not set
+# CONFIG_EXAMPLES_MOUNT is not set
+# CONFIG_EXAMPLES_MODBUS is not set
+# CONFIG_EXAMPLES_NSH is not set
+# CONFIG_EXAMPLES_NULL is not set
+# CONFIG_EXAMPLES_NX is not set
+# CONFIG_EXAMPLES_NXCONSOLE is not set
+# CONFIG_EXAMPLES_NXFFS is not set
+# CONFIG_EXAMPLES_NXFLAT is not set
+# CONFIG_EXAMPLES_NXHELLO is not set
+# CONFIG_EXAMPLES_NXIMAGE is not set
+# CONFIG_EXAMPLES_NXLINES is not set
+# CONFIG_EXAMPLES_NXTEXT is not set
+CONFIG_EXAMPLES_OSTEST=y
+# CONFIG_EXAMPLES_OSTEST_BUILTIN is not set
+CONFIG_EXAMPLES_OSTEST_LOOPS=1
+CONFIG_EXAMPLES_OSTEST_STACKSIZE=1536
+CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
+CONFIG_EXAMPLES_OSTEST_RR_RANGE=10000
+CONFIG_EXAMPLES_OSTEST_RR_RUNS=1
+# CONFIG_EXAMPLES_PASHELLO is not set
+# CONFIG_EXAMPLES_PIPE is not set
+# CONFIG_EXAMPLES_POLL is not set
+# CONFIG_EXAMPLES_POSIXSPAWN is not set
+# CONFIG_EXAMPLES_QENCODER is not set
+# CONFIG_EXAMPLES_RGMP is not set
+# CONFIG_EXAMPLES_ROMFS is not set
+# CONFIG_EXAMPLES_SENDMAIL is not set
+# CONFIG_EXAMPLES_SERLOOP is not set
+# CONFIG_EXAMPLES_TELNETD is not set
+# CONFIG_EXAMPLES_THTTPD is not set
+# CONFIG_EXAMPLES_TIFF is not set
+# CONFIG_EXAMPLES_TOUCHSCREEN is not set
+# CONFIG_EXAMPLES_UDP is not set
+# CONFIG_EXAMPLES_UIP is not set
+# CONFIG_EXAMPLES_USBSERIAL is not set
+# CONFIG_EXAMPLES_USBMSC is not set
+# CONFIG_EXAMPLES_USBTERM is not set
+# CONFIG_EXAMPLES_WATCHDOG is not set
+
+#
+# Interpreters
+#
+# CONFIG_INTERPRETERS_FICL is not set
+# CONFIG_INTERPRETERS_PCODE is not set
+
+#
+# Network Utilities
+#
+
+#
+# Networking Utilities
+#
+# CONFIG_NETUTILS_CODECS is not set
+# CONFIG_NETUTILS_DHCPC is not set
+# CONFIG_NETUTILS_DHCPD is not set
+# CONFIG_NETUTILS_FTPC is not set
+# CONFIG_NETUTILS_FTPD is not set
+# CONFIG_NETUTILS_JSON is not set
+# CONFIG_NETUTILS_RESOLV is not set
+# CONFIG_NETUTILS_SMTP is not set
+# CONFIG_NETUTILS_TELNETD is not set
+# CONFIG_NETUTILS_TFTPC is not set
+# CONFIG_NETUTILS_THTTPD is not set
+# CONFIG_NETUTILS_UIPLIB is not set
+# CONFIG_NETUTILS_WEBCLIENT is not set
+
+#
+# FreeModbus
+#
+# CONFIG_MODBUS is not set
+
+#
+# NSH Library
+#
+# CONFIG_NSH_LIBRARY is not set
+
+#
+# NxWidgets/NxWM
+#
+
+#
+# System NSH Add-Ons
+#
+
+#
+# Custom Free Memory Command
+#
+# CONFIG_SYSTEM_FREE is not set
+
+#
+# I2C tool
+#
+
+#
+# FLASH Program Installation
+#
+# CONFIG_SYSTEM_INSTALL is not set
+
+#
+# readline()
+#
+# CONFIG_SYSTEM_READLINE is not set
+
+#
+# Power Off
+#
+# CONFIG_SYSTEM_POWEROFF is not set
+
+#
+# RAMTRON
+#
+# CONFIG_SYSTEM_RAMTRON is not set
+
+#
+# SD Card
+#
+# CONFIG_SYSTEM_SDCARD is not set
+
+#
+# Sysinfo
+#
+# CONFIG_SYSTEM_SYSINFO is not set
+
+#
+# USB Monitor
+#
diff --git a/nuttx/configs/freedom-kl25z/ostest/setenv.sh b/nuttx/configs/freedom-kl25z/ostest/setenv.sh
new file mode 100644
index 000000000..60e50d20b
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/ostest/setenv.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+# configs/freedom-kl25z/ostest/setenv.sh
+#
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. 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.
+# 3. Neither the name NuttX 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 OWNER 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.
+#
+
+if [ "$_" = "$0" ] ; then
+  echo "You must source this script, not run it!" 1>&2
+  exit 1
+fi
+
+WD=`pwd`
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the RIDE
+# toolchain under windows.  You will also have to edit this if you install
+# the RIDE toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Raisonance/Ride/arm-gcc/bin"
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# These are the Cygwin paths to the locations where I installed the Atollic
+# toolchain under windows.  You will also have to edit this if you install
+# the Atollic toolchain in any other location.  /usr/bin is added before
+# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
+# at those locations as well.
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
+
+echo "PATH : ${PATH}"
diff --git a/nuttx/configs/freedom-kl25z/scripts/ld.script b/nuttx/configs/freedom-kl25z/scripts/ld.script
new file mode 100644
index 000000000..b9dd95ca4
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/scripts/ld.script
@@ -0,0 +1,134 @@
+/****************************************************************************
+ * configs/kwikstik-k40/scripts/ld.script
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name NuttX 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 OWNER 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.
+ *
+ ****************************************************************************/
+
+/* The MKL25Z128 has 128Kb of FLASH beginning at address 0x00000000 and
+ * 16Kb of SRAM at address 0x1ffff000. 
+ */
+
+MEMORY
+{
+	vectflash (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00c0
+	cfmprotect (rx) : ORIGIN = 0x00000400, LENGTH = 0x10
+	progflash (rx)  : ORIGIN = 0x00000410, LENGTH = 128K - 0x410
+	datasram (rwx)  : ORIGIN = 0x1ffff000, LENGTH = 16K
+}
+
+OUTPUT_ARCH(arm)
+EXTERN(_vectors)
+EXTERN(_cfmconfig)
+ENTRY(_stext)
+SECTIONS
+{
+	.vectors : {
+		_svectors = ABSOLUTE(.);
+		*(.vectors)
+		_evectors = ABSOLUTE(.);
+	} > vectflash
+
+	.cfmprotect : {
+		*(.cfmconfig)
+	} > cfmprotect
+
+	.text : {
+		_stext = ABSOLUTE(.);
+		*(.text .text.*)
+		*(.fixup)
+		*(.gnu.warning)
+		*(.rodata .rodata.*)
+		*(.gnu.linkonce.t.*)
+		*(.glue_7)
+		*(.glue_7t)
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
+		_etext = ABSOLUTE(.);
+	} > progflash
+
+	.init_section : {
+		_sinit = ABSOLUTE(.);
+		*(.init_array .init_array.*)
+		_einit = ABSOLUTE(.);
+	} > progflash
+
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} > progflash
+
+	__exidx_start = ABSOLUTE(.);
+	.ARM.exidx : {
+		*(.ARM.exidx*)
+	} > progflash
+	__exidx_end = ABSOLUTE(.);
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > datasram AT > progflash
+
+	_eronly = LOADADDR(.data);
+
+	.ramfunc ALIGN(4): {
+		_sramfuncs = ABSOLUTE(.);
+		*(.ramfunc  .ramfunc.*)
+		_eramfuncs = ABSOLUTE(.);
+	} > datasram AT > progflash
+
+	_framfuncs = LOADADDR(.ramfunc);
+
+	.bss : {
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > datasram
+
+	/* Stabs debugging sections. */
+	.stab 0 : { *(.stab) }
+	.stabstr 0 : { *(.stabstr) }
+	.stab.excl 0 : { *(.stab.excl) }
+	.stab.exclstr 0 : { *(.stab.exclstr) }
+	.stab.index 0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment 0 : { *(.comment) }
+	.debug_abbrev 0 : { *(.debug_abbrev) }
+	.debug_info 0 : { *(.debug_info) }
+	.debug_line 0 : { *(.debug_line) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	.debug_aranges 0 : { *(.debug_aranges) }
+}
diff --git a/nuttx/configs/freedom-kl25z/scripts/ld.script_old b/nuttx/configs/freedom-kl25z/scripts/ld.script_old
new file mode 100644
index 000000000..9cb70bd3e
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/scripts/ld.script_old
@@ -0,0 +1,115 @@
+/****************************************************************************
+ * configs/freedom-kl25z/scripts/ld.script
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name NuttX 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 OWNER 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.
+ *
+ ****************************************************************************/
+
+/* The MKL25Z128 has 128Kb of FLASH beginning at address 0x0000:0000 and
+ * 16Kb of SRAM at address 0x20000000. 
+ */
+
+MEMORY
+{
+    flash (rx) : ORIGIN = 0x00000000, LENGTH = 128K
+    sram (rwx) : ORIGIN = 0x1FFFF000, LENGTH = 16K
+}
+
+OUTPUT_ARCH(arm)
+EXTERN(_vectors)
+ENTRY(_stext)
+
+SECTIONS
+{
+	.text : {
+		_stext = ABSOLUTE(.);
+		*(.vectors)
+		*(.text .text.*)
+		*(.fixup)
+		*(.gnu.warning)
+		*(.rodata .rodata.*)
+		*(.gnu.linkonce.t.*)
+		*(.glue_7)
+		*(.glue_7t)
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
+		_etext = ABSOLUTE(.);
+	} > flash
+
+	.init_section : {
+		_sinit = ABSOLUTE(.);
+		*(.init_array .init_array.*)
+		_einit = ABSOLUTE(.);
+	} > flash
+
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} > flash
+
+	__exidx_start = ABSOLUTE(.);
+	.ARM.exidx : {
+		*(.ARM.exidx*)
+	} > flash
+	__exidx_end = ABSOLUTE(.);
+
+	_eronly = ABSOLUTE(.);
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > sram AT > flash
+
+	.bss : {
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > sram
+
+	/* Stabs debugging sections. */
+	.stab 0 : { *(.stab) }
+	.stabstr 0 : { *(.stabstr) }
+	.stab.excl 0 : { *(.stab.excl) }
+	.stab.exclstr 0 : { *(.stab.exclstr) }
+	.stab.index 0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment 0 : { *(.comment) }
+	.debug_abbrev 0 : { *(.debug_abbrev) }
+	.debug_info 0 : { *(.debug_info) }
+	.debug_line 0 : { *(.debug_line) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	.debug_aranges 0 : { *(.debug_aranges) }
+}
diff --git a/nuttx/configs/freedom-kl25z/src/Makefile b/nuttx/configs/freedom-kl25z/src/Makefile
new file mode 100644
index 000000000..30333c4cc
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/src/Makefile
@@ -0,0 +1,116 @@
+############################################################################
+# configs/freedom-kl25z/src/Makefile
+#
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. 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.
+# 3. Neither the name NuttX 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 OWNER 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 $(TOPDIR)/Make.defs
+
+CFLAGS += -I$(TOPDIR)/sched
+
+ASRCS = 
+AOBJS = $(ASRCS:.S=$(OBJEXT))
+
+CSRCS = kl_boardinitialize.c 
+
+ifeq ($(CONFIG_HAVE_CXX),y)
+CSRCS += kl_cxxinitialize.c
+endif
+
+ifeq ($(CONFIG_ARCH_LEDS),y)
+CSRCS += kl_led.c
+endif
+
+ifeq ($(CONFIG_NUC1XX_USBD),y)
+CSRCS += kl_usbd.c
+endif
+
+ifeq ($(CONFIG_PWM),y)
+CSRCS += kl_pwm.c
+endif
+
+ifeq ($(CONFIG_QENCODER),y)
+CSRCS += kl_qencoder.c
+endif
+
+ifeq ($(CONFIG_WATCHDOG),y)
+CSRCS += kl_watchdog.c
+endif
+
+ifeq ($(CONFIG_NSH_ARCHINIT),y)
+CSRCS += kl_nsh.c
+endif
+
+COBJS = $(CSRCS:.c=$(OBJEXT))
+
+SRCS = $(ASRCS) $(CSRCS)
+OBJS = $(AOBJS) $(COBJS)
+
+ARCH_SRCDIR = $(TOPDIR)/arch/$(CONFIG_ARCH)/src
+ifeq ($(CONFIG_WINDOWS_NATIVE),y)
+  CFLAGS += -I$(ARCH_SRCDIR)\chip -I$(ARCH_SRCDIR)\common -I$(ARCH_SRCDIR)\armv7-m
+else
+ifeq ($(WINTOOL),y)
+  CFLAGS += -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
+			-I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
+			-I "${shell cygpath -w $(ARCH_SRCDIR)/armv7-m}"
+else
+  CFLAGS += -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/armv7-m
+endif
+endif
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+libboard$(LIBEXT): $(OBJS)
+	$(call ARCHIVE, $@, $(OBJS))
+
+.depend: Makefile $(SRCS)
+	$(Q) $(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(Q) touch $@
+
+depend: .depend
+
+clean:
+	$(call DELFILE, libboard$(LIBEXT))
+	$(call CLEAN)
+
+distclean: clean
+	$(call DELFILE, Make.dep)
+	$(call DELFILE, .depend)
+
+-include Make.dep
diff --git a/nuttx/configs/freedom-kl25z/src/freedom-kl25z.h b/nuttx/configs/freedom-kl25z/src/freedom-kl25z.h
new file mode 100644
index 000000000..a3f70578b
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/src/freedom-kl25z.h
@@ -0,0 +1,131 @@
+/****************************************************************************************************
+ * configs/freedom-kl25z/src/freedom-kl25z.h
+ * arch/arm/src/board/freedom-kl25z.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name NuttX 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 OWNER 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.
+ *
+ ****************************************************************************************************/
+
+#ifndef __CONFIGS_NUTINY_NUC120_SRC_NUTINY_NUC120_H
+#define __CONFIGS_NUTINY_NUC120_SRC_NUTINY_NUC120_H
+
+/****************************************************************************************************
+ * Included Files
+ ****************************************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/compiler.h>
+#include <stdint.h>
+
+/****************************************************************************************************
+ * Definitions
+ ****************************************************************************************************/
+/* Configuration ************************************************************************************/
+
+/* NuTiny-EVB-120 GPIOs *****************************************************************************/
+/* The NuTiny has a single green LED that can be controlled from sofware.  This LED
+ * is connected to PIN17 (PB.0).  It is pulled high so a low value will illuminate the LED.
+ *
+ * If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board the
+ * NuTiny.  The following definitions describe how NuttX controls the LEDs:
+ *
+ *   SYMBOL                Meaning                 LED state
+ *                                                 Initially all LED is OFF
+ *   -------------------  -----------------------  ------------- ------------
+ *   LED_STARTED          NuttX has been started   LED ON
+ *   LED_HEAPALLOCATE     Heap has been allocated  LED ON
+ *   LED_IRQSENABLED      Interrupts enabled       LED ON
+ *   LED_STACKCREATED     Idle stack created       LED ON
+ *   LED_INIRQ            In an interrupt          LED should glow
+ *   LED_SIGNAL           In a signal handler      LED might glow
+ *   LED_ASSERTION        An assertion failed      LED ON while handling the assertion
+ *   LED_PANIC            The system has crashed   LED Blinking at 2Hz
+ *   LED_IDLE             NUC1XX is in sleep mode   (Optional, not used)
+ */
+
+#define GPIO_LED (GPIO_OUTPUT | GPIO_OUTPUT_SET | GPIO_PORTB | GPIO_PIN0)
+
+/* Button definitions ***************************************************************/
+/* The NuTiny has no buttons */
+
+/****************************************************************************************************
+ * Public Types
+ ****************************************************************************************************/
+
+/****************************************************************************************************
+ * Public data
+ ****************************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************************************
+ * Public Functions
+ ****************************************************************************************************/
+
+/****************************************************************************************************
+ * Name: kl_spiinitialize
+ *
+ * Description:
+ *   Called to configure SPI chip select GPIO pins for the NuTiny-EVB-120 board.
+ *
+ ****************************************************************************************************/
+
+void weak_function kl_spiinitialize(void);
+
+/****************************************************************************************************
+ * Name: kl_usbinitialize
+ *
+ * Description:
+ *   Called from kl_usbinitialize very early in inialization to setup USB-related
+ *   GPIO pins for the NuTiny-EVB-120 board.
+ *
+ ****************************************************************************************************/
+
+#ifdef CONFIG_STM32_USB
+void weak_function kl_usbinitialize(void);
+#endif
+
+/****************************************************************************************************
+ * Name: kl_ledinit
+ *
+ * Description:
+ *   Initialize the on-board LED
+ *
+ ****************************************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void kl_ledinit(void);
+#endif
+
+
+#endif /* __ASSEMBLY__ */
+#endif /* __CONFIGS_NUTINY_NUC120_SRC_NUTINY_NUC120_H */
+
diff --git a/nuttx/configs/freedom-kl25z/src/kl_boardinitialize.c b/nuttx/configs/freedom-kl25z/src/kl_boardinitialize.c
new file mode 100644
index 000000000..562302237
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/src/kl_boardinitialize.c
@@ -0,0 +1,102 @@
+/************************************************************************************
+ * configs/freedom-kl25z/src/up_boot.c
+ * arch/arm/src/board/up_boot.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name NuttX 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 OWNER 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.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "freedom-kl25z.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: kl_boardinitialize
+ *
+ * Description:
+ *   All K25Z architectures must provide the following entry point.  This entry point
+ *   is called early in the intitialization -- after all memory has been configured
+ *   and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void kl_boardinitialize(void)
+{
+  /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
+   * kl_spiinitialize() has been brought into the link.
+   */
+
+#if defined(CONFIG_NUC1XX_SPI1) || defined(CONFIG_NUC1XX_SPI2) || defined(CONFIG_NUC1XX_SPI3)
+  if (kl_spiinitialize)
+    {
+      kl_spiinitialize();
+    }
+#endif
+
+  /* Initialize USB if the 1) USB device controller is in the configuration and 2)
+   * disabled, and 3) the weak function kl_usbinitialize() has been brought 
+   * into the build. Presumeably either CONFIG_USBDEV is also selected.
+   */
+
+#ifdef CONFIG_NUC1XX_USB
+  if (kl_usbinitialize)
+    {
+      kl_usbinitialize();
+    }
+#endif
+
+  /* Configure on-board LED if LED support has been selected. */
+
+#ifdef CONFIG_ARCH_LEDS
+  kl_ledinit();
+#endif
+}
diff --git a/nuttx/configs/freedom-kl25z/src/kl_led.c b/nuttx/configs/freedom-kl25z/src/kl_led.c
new file mode 100644
index 000000000..aa633a080
--- /dev/null
+++ b/nuttx/configs/freedom-kl25z/src/kl_led.c
@@ -0,0 +1,154 @@
+/****************************************************************************
+ * configs/freedom-kl25z/src/up_autoleds.c
+ * arch/arm/src/board/up_autoleds.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name NuttX 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 OWNER 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.
+ *
+ ****************************************************************************/
+/* The NuTiny has a single green LED that can be controlled from sofware.
+ * This LED is connected to PIN17.  It is pulled high so a low value will
+ * illuminate the LED.
+ *
+ * If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board the
+ * NuTiny.  The following definitions describe how NuttX controls the LEDs:
+ *
+ *   SYMBOL                Meaning                 LED state
+ *                                                 Initially all LED is OFF
+ *   -------------------  -----------------------  ------------- ------------
+ *   LED_STARTED          NuttX has been started   LED ON
+ *   LED_HEAPALLOCATE     Heap has been allocated  LED ON
+ *   LED_IRQSENABLED      Interrupts enabled       LED ON
+ *   LED_STACKCREATED     Idle stack created       LED ON
+ *   LED_INIRQ            In an interrupt          LED should glow
+ *   LED_SIGNAL           In a signal handler      LED might glow
+ *   LED_ASSERTION        An assertion failed      LED ON while handling the assertion
+ *   LED_PANIC            The system has crashed   LED Blinking at 2Hz
+ *   LED_IDLE             NUC1XX is is sleep mode   (Optional, not used)
+ */
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "chip.h"
+#include "kl_gpio.h"
+#include "freedom-kl25z.h"
+
+//extern void blueled(int on);
+//int i=0;
+
+#ifdef CONFIG_ARCH_LEDS
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
+ * with CONFIG_DEBUG_VERBOSE too)
+ */
+
+#ifdef CONFIG_DEBUG_LEDS
+#  define leddbg  lldbg
+#  ifdef CONFIG_DEBUG_VERBOSE
+#    define ledvdbg lldbg
+#  else
+#    define ledvdbg(x...)
+#  endif
+#else
+#  define leddbg(x...)
+#  define ledvdbg(x...)
+#endif
+
+/* Dump GPIO registers */
+
+#if defined(CONFIG_DEBUG_VERBOSE) && defined(CONFIG_DEBUG_LEDS)
+#  define led_dumpgpio(m) kl_dumpgpio(GPIO_LED, m)
+#else
+#  define led_dumpgpio(m)
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: kl_ledinit
+ *
+ * Description:
+ *   Initialize the on-board LED
+ *
+ ****************************************************************************/
+
+void kl_ledinit(void)
+{
+  led_dumpgpio("Before configuration");
+  //kl_configgpio(GPIO_LED);
+  /* Blink blue LED to indicate we are here */
+  //for (; ; i++)
+  //      blueled(i & 0x10000);
+  led_dumpgpio("After configuration");
+}
+
+/****************************************************************************
+ * Name: up_ledon
+ ****************************************************************************/
+
+void up_ledon(int led)
+{
+  kl_gpiowrite(GPIO_LED, false);
+}
+
+/****************************************************************************
+ * Name: up_ledoff
+ ****************************************************************************/
+
+void up_ledoff(int led)
+{
+  kl_gpiowrite(GPIO_LED, true);
+}
+
+#endif /* CONFIG_ARCH_LEDS */