diff --git a/configs/freedom-k64f/include/board.h b/configs/freedom-k64f/include/board.h
index 61ef7384cfe..4ce03acd932 100644
--- a/configs/freedom-k64f/include/board.h
+++ b/configs/freedom-k64f/include/board.h
@@ -1,8 +1,7 @@
 /************************************************************************************
  * configs/freedom-k64f/include/board.h
- * include/arch/board/board.h
  *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,8 +33,8 @@
  *
  ************************************************************************************/
 
-#ifndef __ARCH_BOARD_BOARD_H
-#define __ARCH_BOARD_BOARD_H
+#ifndef __CONFIG_FREEDOM_K64F_INCLUDE_BOARD_H
+#define __CONFIG_FREEDOM_K64F_INCLUDE_BOARD_H
 
 /************************************************************************************
  * Included Files
@@ -378,7 +377,8 @@
 #undef EXTERN
 #if defined(__cplusplus)
 #define EXTERN extern "C"
-extern "C" {
+extern "C"
+{
 #else
 #define EXTERN extern
 #endif
@@ -386,6 +386,7 @@ extern "C" {
 /************************************************************************************
  * Public Function Prototypes
  ************************************************************************************/
+
 /************************************************************************************
  * Name: kinetis_boardinitialize
  *
@@ -396,7 +397,7 @@ extern "C" {
  *
  ************************************************************************************/
 
-EXTERN void kinetis_boardinitialize(void);
+void kinetis_boardinitialize(void);
 
 #undef EXTERN
 #if defined(__cplusplus)
@@ -404,4 +405,4 @@ EXTERN void kinetis_boardinitialize(void);
 #endif
 
 #endif /* __ASSEMBLY__ */
-#endif  /* __ARCH_BOARD_BOARD_H */
+#endif  /* __CONFIG_FREEDOM_K64F_INCLUDE_BOARD_H */
diff --git a/configs/freedom-k64f/nsh/setenv.sh b/configs/freedom-k64f/nsh/setenv.sh
index cfb4e25e25c..43bab49e0ad 100644
--- a/configs/freedom-k64f/nsh/setenv.sh
+++ b/configs/freedom-k64f/nsh/setenv.sh
@@ -47,10 +47,25 @@ if [ -z "${PATH_ORIG}" ]; then
   export PATH_ORIG="${PATH}"
 fi
 
+# This is the Cygwin path to the location where I installed the Atmel GCC
+# toolchain under Windows.  You will also have to edit this if you install
+# this toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atmel/Atmel Toolchain/ARM GCC/Native/4.7.3.99/arm-gnu-toolchain/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"
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
+# export TOOLCHAIN_BIN="/cygdrive/c/Users/MyName/MentorGraphics/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
+
+# This is the location where I installed the ARM "GNU Tools for ARM Embedded Processors"
+# You can this free toolchain here https://launchpad.net/gcc-arm-embedded
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/GNU Tools ARM Embedded/4.9 2015q2/bin"
+
+# This is the path to the location where I installed the devkitARM toolchain
+# You can get this free toolchain from http://devkitpro.org/ or http://sourceforge.net/projects/devkitpro/
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/devkitARM/bin"
 
 # This is the Cygwin path to the location where I build the buildroot
 # toolchain.
@@ -58,4 +73,5 @@ export TOOLCHAIN_BIN="${WD}/../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/configs/freedom-k64f/src/Makefile b/configs/freedom-k64f/src/Makefile
index 1b6b3167d38..05f58900fb0 100644
--- a/configs/freedom-k64f/src/Makefile
+++ b/configs/freedom-k64f/src/Makefile
@@ -1,7 +1,7 @@
 ############################################################################
 # configs/freedom-k64f/src/Makefile
 #
-#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2016 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>
 #
 # Redistribution and use in source and binary forms, with or without
diff --git a/configs/freedom-k64f/src/freedom-k64f.h b/configs/freedom-k64f/src/freedom-k64f.h
index 36320a34c30..0f90392bca7 100644
--- a/configs/freedom-k64f/src/freedom-k64f.h
+++ b/configs/freedom-k64f/src/freedom-k64f.h
@@ -1,7 +1,7 @@
 /************************************************************************************
- * configs/twr-k60n512/src/twr-k60n512.h
+ * configs/freedom-k64f/src/freedom-k64f.h
  *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,8 +33,8 @@
  *
  ************************************************************************************/
 
-#ifndef __CONFIGS_FREEDOM_K64F_SRC_FRDMK64_H
-#define __CONFIGS_FREEDOM_K64F_SRC_FRDMK64_H
+#ifndef __CONFIGS_FREEDOM_K64F_SRC_FREEDOM_K64F_H
+#define __CONFIGS_FREEDOM_K64F_SRC_FREEDOM_K64F_H
 
 /************************************************************************************
  * Included Files
@@ -55,10 +55,10 @@
  */
 
 #if KINETIS_NSPI < 1
-#  undef CONFIG_K64_SPI1
-#  undef CONFIG_K64_SPI2
+#  undef CONFIG_KINETIS_SPI1
+#  undef CONFIG_KINETIS_SPI2
 #elif KINETIS_NSPI < 2
-#  undef CONFIG_K64_SPI2
+#  undef CONFIG_KINETIS_SPI2
 #endif
 
 /* FREEDOM-K64F GPIOs ****************************************************************/
@@ -293,4 +293,4 @@ void weak_function k64_spidev_initialize(void);
 void weak_function k64_usbinitialize(void);
 
 #endif /* __ASSEMBLY__ */
-#endif /* __CONFIGS_FREEDOM_K64F_SRC_FRDMK64_H */
+#endif /* __CONFIGS_FREEDOM_K64F_SRC_FREEDOM_K64F_H */
diff --git a/configs/freedom-k64f/src/k64_appinit.c b/configs/freedom-k64f/src/k64_appinit.c
index 034f9e3b7c2..d55c3bfd064 100644
--- a/configs/freedom-k64f/src/k64_appinit.c
+++ b/configs/freedom-k64f/src/k64_appinit.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * config/freedom-k64f/src/k64_appinit.c
  *
- *   Copyright (C) 2011, 2016 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -46,7 +46,7 @@
 
 #include <nuttx/board.h>
 
-#ifdef CONFIG_K64_SDHC
+#ifdef CONFIG_KINETIS_SDHC
 #  include <nuttx/sdio.h>
 #  include <nuttx/mmcsd.h>
 #endif
@@ -88,7 +88,7 @@
  * is not enabled.
  */
 
-#if defined(CONFIG_DISABLE_MOUNTPOINT) || !defined(CONFIG_K64_SDHC)
+#if defined(CONFIG_DISABLE_MOUNTPOINT) || !defined(CONFIG_KINETIS_SDHC)
 #  undef NSH_HAVEMMCSD
 #endif
 
@@ -102,8 +102,8 @@
 #  error "CONFIG_GPIO_IRQ required for card detect interrupt"
 #endif
 
-#ifndef CONFIG_K64_PORTEINTS
-#  error "CONFIG_K64_PORTEINTS required for card detect interrupt"
+#ifndef CONFIG_KINETIS_PORTEINTS
+#  error "CONFIG_KINETIS_PORTEINTS required for card detect interrupt"
 #endif
 
 /****************************************************************************
@@ -224,7 +224,7 @@ int board_app_initialize(uintptr_t arg)
   /* Attached the card detect interrupt (but don't enable it yet) */
 
   kinetis_pinconfig(GPIO_SD_CARDDETECT);
-  k64_pinirqattach(GPIO_SD_CARDDETECT, k64_cdinterrupt);
+  kinetis_pinirqattach(GPIO_SD_CARDDETECT, k64_cdinterrupt);
 
   /* Configure the write protect GPIO */
 
@@ -264,7 +264,7 @@ int board_app_initialize(uintptr_t arg)
 
   /* Enable CD interrupts to handle subsequent media changes */
 
-  k64_pinirqenable(GPIO_SD_CARDDETECT);
+  kinetis_pinirqenable(GPIO_SD_CARDDETECT);
 #endif
   return OK;
 }
diff --git a/configs/freedom-k64f/src/k64_boot.c b/configs/freedom-k64f/src/k64_boot.c
index 2eef462690d..1358f6633ad 100644
--- a/configs/freedom-k64f/src/k64_boot.c
+++ b/configs/freedom-k64f/src/k64_boot.c
@@ -1,7 +1,7 @@
 /************************************************************************************
  * configs/freedom-k64f/src/k64_boot.c
  *
- *   Copyright (C) 2011, 2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -47,14 +47,6 @@
 #include "up_arch.h"
 #include "freedom-k64f.h"
 
-/************************************************************************************
- * Pre-processor Definitions
- ************************************************************************************/
-
-/************************************************************************************
- * Private Functions
- ************************************************************************************/
-
 /************************************************************************************
  * Public Functions
  ************************************************************************************/
@@ -71,32 +63,32 @@
 
 void kinetis_boardinitialize(void)
 {
+#if defined(CONFIG_KINETIS_SPI1) || defined(CONFIG_KINETIS_SPI2)
   /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
    * k64_spidev_initialize() has been brought into the link.
    */
 
-#if defined(CONFIG_K64_SPI1) || defined(CONFIG_K64_SPI2)
   if (k64_spidev_initialize)
     {
       k64_spidev_initialize();
     }
 #endif
 
+#if defined(CONFIG_USBDEV) && defined(CONFIG_KINETIS_USB)
    /* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not
     * disabled, and 3) the weak function k64_usbinitialize() has been brought
     * into the build.
     */
 
-#if defined(CONFIG_USBDEV) && defined(CONFIG_K64_USB)
   if (k64_usbinitialize)
     {
       k64_usbinitialize();
     }
 #endif
 
+#ifdef CONFIG_ARCH_LEDS
   /* Configure on-board LEDs if LED support has been selected. */
 
-#ifdef CONFIG_ARCH_LEDS
   board_autoled_initialize();
 #endif
 }
diff --git a/configs/freedom-k64f/src/k64_buttons.c b/configs/freedom-k64f/src/k64_buttons.c
index c05c82b76c3..a8d5c3dcce2 100644
--- a/configs/freedom-k64f/src/k64_buttons.c
+++ b/configs/freedom-k64f/src/k64_buttons.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/freedom-k64f/src/k64_buttons.c
  *
- *   Copyright (C) 2011, 2014-2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -52,20 +52,13 @@
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
+
 /* The TWR-K60N512 has user buttons (plus a reset button):
  *
  * 1. SW1 (IRQ0)   PTA19
  * 2. SW2 (IRQ1)   PTE26
  */
 
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -74,10 +67,10 @@
  * Name: board_button_initialize
  *
  * Description:
- *   board_button_initialize() must be called to initialize button resources.  After
- *   that, board_buttons() may be called to collect the current state of all
- *   buttons or board_button_irq() may be called to register button interrupt
- *   handlers.
+ *   board_button_initialize() must be called to initialize button resources.
+ *   After that, board_buttons() may be called to collect the current state
+ *   of all buttons or board_button_irq() may be called to register button
+ *   interrupt handlers.
  *
  ****************************************************************************/
 
@@ -110,28 +103,29 @@ uint8_t board_buttons(void)
   return ret
 }
 
-/************************************************************************************
+/****************************************************************************
  * Button support.
  *
  * Description:
- *   board_button_initialize() must be called to initialize button resources.  After
- *   that, board_buttons() may be called to collect the current state of all
- *   buttons or board_button_irq() may be called to register button interrupt
- *   handlers.
+ *   board_button_initialize() must be called to initialize button
+ *   resources.  After that, board_buttons() may be called to collect the
+ *   current state of all buttons or board_button_irq() may be called to
+ *   register button interrupt handlers.
  *
- *   After board_button_initialize() has been called, board_buttons() may be called to
- *   collect the state of all buttons.  board_buttons() returns an 8-bit bit set
- *   with each bit associated with a button.  See the BUTTON_*_BIT and JOYSTICK_*_BIT
- *   definitions in board.h for the meaning of each bit.
+ *   After board_button_initialize() has been called, board_buttons() may
+ *   be called to collect the state of all buttons.  board_buttons() returns
+ *   an 8-bit bit set with each bit associated with a button.  See the
+ *   BUTTON_*_BIT and JOYSTICK_*_BIT definitions in board.h for the meaning
+ *   of each bit.
  *
- *   board_button_irq() may be called to register an interrupt handler that will
- *   be called when a button is depressed or released.  The ID value is a
- *   button enumeration value that uniquely identifies a button resource. See the
- *   BUTTON_* and JOYSTICK_* definitions in board.h for the meaning of enumeration
- *   value.  The previous interrupt handler address is returned (so that it may
- *   restored, if so desired).
+ *   board_button_irq() may be called to register an interrupt handler that
+ *   will be called when a button is depressed or released.  The ID value is
+ *   a button enumeration value that uniquely identifies a button resource.
+ *   See the BUTTON_* and JOYSTICK_* definitions in board.h for the meaning
+ *   of enumeration value.  The previous interrupt handler address is
+ *   returned (so that it may restored, if so desired).
  *
- ************************************************************************************/
+ ****************************************************************************/
 
 #ifdef CONFIG_ARCH_IRQBUTTONS
 xcpt_t board_button_irq(int id, xcpt_t irqhandler)
@@ -164,7 +158,7 @@ xcpt_t board_button_irq(int id, xcpt_t irqhandler)
 
   /* Then make sure that interrupts are enabled on the pin */
 
-  k64_pindmaenable(pinset);
+  kinetis_pindmaenable(pinset);
   return oldhandler;
 }
 #endif
diff --git a/configs/freedom-k64f/src/k64_leds.c b/configs/freedom-k64f/src/k64_leds.c
index 65488f1ccf0..da05edc8484 100644
--- a/configs/freedom-k64f/src/k64_leds.c
+++ b/configs/freedom-k64f/src/k64_leds.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/freedom-k64f/src/k64_leds.c
  *
- *   Copyright (C) 2011, 2013, 2015 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -49,6 +49,7 @@
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
+
 /* The FREEDOM-K64F has four LEDs:
  *
  * 1. E1 / Orange LED   PTA11
diff --git a/configs/freedom-k64f/src/k64_spi.c b/configs/freedom-k64f/src/k64_spi.c
index b6c5ea32f8f..847d5af7e47 100644
--- a/configs/freedom-k64f/src/k64_spi.c
+++ b/configs/freedom-k64f/src/k64_spi.c
@@ -1,7 +1,7 @@
 /************************************************************************************
- * configs/freedom-k64f/src/k60_spi.c
+ * configs/freedom-k64f/src/k64_spi.c
  *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -51,7 +51,7 @@
 #include "kinetis.h"
 #include "freedom-k64f.h"
 
-#if defined(CONFIG_K64_SPI1) || defined(CONFIG_K64_SPI2)
+#if defined(CONFIG_KINETIS_SPI1) || defined(CONFIG_KINETIS_SPI2)
 
 /************************************************************************************
  * Public Functions
@@ -77,8 +77,8 @@ void weak_function k64_spidev_initialize(void)
  *   These external functions must be provided by board-specific logic.  They are
  *   implementations of the select, status, and cmddata methods of the SPI interface
  *   defined by struct spi_ops_s (see include/nuttx/spi/spi.h). All other methods
- *   including kinetis_spibus_initialize()) are provided by common Kinetis logic.  To use
- *   this common SPI logic on your board:
+ *   including kinetis_spibus_initialize()) are provided by common Kinetis logic.
+ *   To use this common SPI logic on your board:
  *
  *   1. Provide logic in kinetis_boardinitialize() to configure SPI chip select
  *      pins.
@@ -98,7 +98,7 @@ void weak_function k64_spidev_initialize(void)
  *
  ************************************************************************************/
 
-#ifdef CONFIG_K64_SPI1
+#ifdef CONFIG_KINETIS_SPI1
 void kinetis_spi1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
 {
   spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
@@ -112,7 +112,7 @@ uint8_t kinetis_spi1status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
 }
 #endif
 
-#ifdef CONFIG_K64_SPI2
+#ifdef CONFIG_KINETIS_SPI2
 void kinetis_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
 {
   spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
@@ -126,7 +126,7 @@ uint8_t kinetis_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
 }
 #endif
 
-#ifdef CONFIG_K64_SPI3
+#ifdef CONFIG_KINETIS_SPI3
 void kinetis_spi3select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
 {
   spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
@@ -140,4 +140,4 @@ uint8_t kinetis_spi3status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
 }
 #endif
 
-#endif /* CONFIG_K64_SPI1 || CONFIG_K64_SPI2 */
+#endif /* CONFIG_KINETIS_SPI1 || CONFIG_KINETIS_SPI2 */
diff --git a/configs/freedom-k64f/src/k64_usbdev.c b/configs/freedom-k64f/src/k64_usbdev.c
index 144aabae49b..379f0e2cc19 100644
--- a/configs/freedom-k64f/src/k64_usbdev.c
+++ b/configs/freedom-k64f/src/k64_usbdev.c
@@ -1,7 +1,7 @@
 /************************************************************************************
- * configs/freedom-k64f/src/k60_usbdev.c
+ * configs/freedom-k64f/src/k64_usbdev.c
  *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -51,14 +51,6 @@
 #include "kinetis.h"
 #include "freedom-k64f.h"
 
-/************************************************************************************
- * Pre-processor Definitions
- ************************************************************************************/
-
-/************************************************************************************
- * Private Functions
- ************************************************************************************/
-
 /************************************************************************************
  * Public Functions
  ************************************************************************************/
@@ -77,18 +69,18 @@ void k64_usbinitialize(void)
 }
 
 /************************************************************************************
- * Name:  k64_usbpullup
+ * Name:  kinetis_usbpullup
  *
  * Description:
  *   If USB is supported and the board supports a pullup via GPIO (for USB software
- *   connect and disconnect), then the board software must provide k64_pullup.
+ *   connect and disconnect), then the board software must provide kinetis_usbpullup.
  *   See include/nuttx/usb/usbdev.h for additional description of this method.
  *   Alternatively, if no pull-up GPIO the following EXTERN can be redefined to be
  *   NULL.
  *
  ************************************************************************************/
 
-int k64_usbpullup(FAR struct usbdev_s *dev, bool enable)
+int kinetis_usbpullup(FAR struct usbdev_s *dev, bool enable)
 {
   usbtrace(TRACE_DEVPULLUP, (uint16_t)enable);
 # warning "Missing logic"
@@ -96,18 +88,18 @@ int k64_usbpullup(FAR struct usbdev_s *dev, bool enable)
 }
 
 /************************************************************************************
- * Name:  k64_usbsuspend
+ * Name:  kinetis_usbsuspend
  *
  * Description:
- *   Board logic must provide the k64_usbsuspend logic if the USBDEV driver is
+ *   Board logic must provide the kinetis_usbsuspend logic if the USBDEV driver is
  *   used.  This function is called whenever the USB enters or leaves suspend mode.
  *   This is an opportunity for the board logic to shutdown clocks, power, etc.
  *   while the USB is suspended.
  *
  ************************************************************************************/
 
-void k64_usbsuspend(FAR struct usbdev_s *dev, bool resume)
+void kinetis_usbsuspend(FAR struct usbdev_s *dev, bool resume)
 {
-  ullinfo("resume: %d\n", resume);
+  uinfo("resume: %d\n", resume);
 #warning "Missing logic"
 }
diff --git a/configs/freedom-k64f/src/k64_usbmsc.c b/configs/freedom-k64f/src/k64_usbmsc.c
index bef62c1ae7a..06ff717d637 100644
--- a/configs/freedom-k64f/src/k64_usbmsc.c
+++ b/configs/freedom-k64f/src/k64_usbmsc.c
@@ -1,7 +1,7 @@
 /****************************************************************************
- * configs/freedom-k64f/src/k60_usbmsc.c
+ * configs/freedom-k64f/src/k64_usbmsc.c
  *
- *   Copyright (C) 2011, 2013, 2016 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Configure and register the Kinetis MMC/SD block driver.