Add support for the ISOTEL NetClamps VSN board

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3321 42af7a65-404d-4744-a932-0658087f49c3

10 files changed, 1367 insertions, 0 deletions

diff --git a/nuttx/configs/vsn/src/Makefile b/nuttx/configs/vsn/src/Makefile
new file mode 100644
index 000000000..f6d03d41f
--- /dev/null
+++ b/nuttx/configs/vsn/src/Makefile
@@ -0,0 +1,94 @@
+############################################################################
+# configs/vsn/src/Makefile
+#
+#   Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
+#   Copyright (c) 2011 Uros Platise. All rights reserved.
+#
+#   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+#            Uros Platise <uros.platise@isotel.eu>
+#
+# 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		= up_sysclock.c up_boot.c up_leds.c up_buttons.c up_spi.c up_usbdev.c 
+
+ifeq ($(CONFIG_EXAMPLES_NSH_ARCHINIT),y)
+CSRCS		+= up_nsh.c
+endif
+ifeq ($(CONFIG_APP_DIR),examples/usbstorage)
+CSRCS		+= up_usbstrg.c
+endif
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
+ifeq ($(WINTOOL),y)
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/cortexm3}"
+else
+  CFLAGS	+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/cortexm3
+endif
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+libboard$(LIBEXT): $(OBJS)
+	@( for obj in $(OBJS) ; do \
+		$(call ARCHIVE, $@, $${obj}); \
+	done ; )
+
+.depend: Makefile $(SRCS)
+	@$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	@touch $@
+
+depend: .depend
+
+clean:
+	@rm -f libboard$(LIBEXT) *~ .*.swp
+	$(call CLEAN)
+
+distclean: clean
+	@rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/nuttx/configs/vsn/src/up_boot.c b/nuttx/configs/vsn/src/up_boot.c
new file mode 100644
index 000000000..df05a10bf
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_boot.c
@@ -0,0 +1,105 @@
+/************************************************************************************

+ * configs/vsn/src/up_boot.c

+ * arch/arm/src/board/up_boot.c

+ *

+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.

+ *   Copyright (c) 2011 Uros Platise. All rights reserved.

+ *

+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>

+ *            Uros Platise <uros.platise@isotel.eu>

+ *

+ * 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 "vsn-internal.h"

+

+/************************************************************************************

+ * Definitions

+ ************************************************************************************/

+

+/************************************************************************************

+ * Private Functions

+ ************************************************************************************/

+

+/************************************************************************************

+ * Public Functions

+ ************************************************************************************/

+

+/************************************************************************************

+ * Name: stm32_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.

+ *

+ ************************************************************************************/

+

+void stm32_boardinitialize(void)

+{

+  /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function

+   * stm32_spiinitialize() has been brought into the link.

+   */

+

+#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2)

+  if (stm32_spiinitialize)

+    {

+      stm32_spiinitialize();

+    }

+#endif

+

+   /* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not

+    * disabled, and 3) the weak function stm32_usbinitialize() has been brought

+    * into the build.

+    */

+

+#if defined(CONFIG_USBDEV) && defined(CONFIG_STM32_USB)

+  if (stm32_usbinitialize)

+    {

+      stm32_usbinitialize();

+    }

+#endif

+

+  /* Configure on-board LEDs if LED support has been selected. */

+

+#ifdef CONFIG_ARCH_LEDS

+  up_ledinit();

+#endif

+}

diff --git a/nuttx/configs/vsn/src/up_buttons.c b/nuttx/configs/vsn/src/up_buttons.c
new file mode 100644
index 000000000..27284a8d0
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_buttons.c
@@ -0,0 +1,84 @@
+/****************************************************************************
+ * configs/vsn-1.2/src/up_buttons.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * 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 <stdint.h>
+#include <arch/board/board.h>
+#include "vsn-internal.h"
+
+#ifdef CONFIG_ARCH_BUTTONS
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_buttoninit
+ ****************************************************************************/
+
+void up_buttoninit(void)
+{
+  stm32_configgpio(GPIO_PUSHBUTTON);
+}
+
+/****************************************************************************
+ * Name: up_buttons
+ ****************************************************************************/
+
+uint8_t up_buttons(void)
+{
+  return stm32_gpioread(GPIO_PUSHBUTTON);
+}
+
+#endif /* CONFIG_ARCH_BUTTONS */
diff --git a/nuttx/configs/vsn/src/up_leds.c b/nuttx/configs/vsn/src/up_leds.c
new file mode 100644
index 000000000..a936aac2e
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_leds.c
@@ -0,0 +1,116 @@
+/****************************************************************************
+ * configs/vsn-1.2/src/up_leds.c
+ * arch/arm/src/board/up_leds.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * 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 <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+#include "vsn-internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* Enables debug output from this file (needs CONFIG_DEBUG with
+ * CONFIG_DEBUG_VERBOSE too)
+ */
+
+#undef LED_DEBUG  /* Define to enable debug */
+
+#ifdef LED_DEBUG
+#  define leddbg  lldbg
+#  define ledvdbg llvdbg
+#else
+#  define leddbg(x...)
+#  define ledvdbg(x...)
+#endif
+
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void led_setonoff(unsigned int bits)
+{
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_ledinit
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void up_ledinit(void)
+{
+   stm32_configgpio(GPIO_LED);
+}
+
+/****************************************************************************
+ * Name: up_ledon
+ ****************************************************************************/
+
+void up_ledon(int led)
+{
+  if (led==LED_IDLE) stm32_gpiowrite(GPIO_LED, true);
+}
+
+/****************************************************************************
+ * Name: up_ledoff
+ ****************************************************************************/
+
+void up_ledoff(int led)
+{
+  if (led==LED_IDLE) stm32_gpiowrite(GPIO_LED, false);
+}
+
+#endif /* CONFIG_ARCH_LEDS */
diff --git a/nuttx/configs/vsn/src/up_nsh.c b/nuttx/configs/vsn/src/up_nsh.c
new file mode 100644
index 000000000..323e91a44
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_nsh.c
@@ -0,0 +1,215 @@
+/****************************************************************************
+ * config/vsn/src/up_nsh.c
+ * arch/arm/src/board/up_nsh.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * 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 <stdbool.h>
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#ifdef CONFIG_STM32_SPI1
+#  include <nuttx/spi.h>
+#  include <nuttx/mtd.h>
+#endif
+
+#ifdef CONFIG_STM32_SDIO
+#  include <nuttx/sdio.h>
+#  include <nuttx/mmcsd.h>
+#endif
+
+#include "vsn-internal.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+/* For now, don't build in any SPI1 support -- NSH is not using it */
+
+#undef CONFIG_STM32_SPI1
+
+/* PORT and SLOT number probably depend on the board configuration */
+
+#ifdef CONFIG_ARCH_BOARD_VSN
+#  define CONFIG_EXAMPLES_NSH_HAVEUSBDEV 1
+#  define CONFIG_EXAMPLES_NSH_HAVEMMCSD  1
+#  if defined(CONFIG_EXAMPLES_NSH_MMCSDSLOTNO) && CONFIG_EXAMPLES_NSH_MMCSDSLOTNO != 0
+#    error "Only one MMC/SD slot"
+#    undef CONFIG_EXAMPLES_NSH_MMCSDSLOTNO
+#  endif
+#  ifndef CONFIG_EXAMPLES_NSH_MMCSDSLOTNO
+#    define CONFIG_EXAMPLES_NSH_MMCSDSLOTNO 0
+#  endif
+#else
+   /* Add configuration for new STM32 boards here */
+#  undef CONFIG_EXAMPLES_NSH_HAVEUSBDEV
+#  undef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+#endif
+
+/* Can't support USB features if USB is not enabled */
+
+#ifndef CONFIG_USBDEV
+#  undef CONFIG_EXAMPLES_NSH_HAVEUSBDEV
+#endif
+
+/* Can't support MMC/SD features if mountpoints are disabled or if SDIO support
+ * is not enabled.
+ */
+
+#if defined(CONFIG_DISABLE_MOUNTPOINT) || !defined(CONFIG_STM32_SDIO)
+#  undef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+#endif
+
+#ifndef CONFIG_EXAMPLES_NSH_MMCSDMINOR
+#  define CONFIG_EXAMPLES_NSH_MMCSDMINOR 0
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) lib_lowprintf(__VA_ARGS__)
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message lib_lowprintf
+#  else
+#    define message printf
+#  endif
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int nsh_archinitialize(void)
+{
+#ifdef CONFIG_STM32_SPI1
+  FAR struct spi_dev_s *spi;
+  FAR struct mtd_dev_s *mtd;
+#endif
+#ifdef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+  FAR struct sdio_dev_s *sdio;
+  int ret;
+#endif
+
+  /* Configure SPI-based devices */
+
+#ifdef CONFIG_STM32_SPI1
+  /* Get the SPI port */
+
+  message("nsh_archinitialize: Initializing SPI port 0\n");
+  spi = up_spiinitialize(0);
+  if (!spi)
+    {
+      message("nsh_archinitialize: Failed to initialize SPI port 0\n");
+      return -ENODEV;
+    }
+  message("nsh_archinitialize: Successfully initialized SPI port 0\n");
+
+  /* Now bind the SPI interface to the M25P64/128 SPI FLASH driver */
+
+  message("nsh_archinitialize: Bind SPI to the SPI flash driver\n");
+  mtd = m25p_initialize(spi);
+  if (!mtd)
+    {
+      message("nsh_archinitialize: Failed to bind SPI port 0 to the SPI FLASH driver\n");
+      return -ENODEV;
+    }
+  message("nsh_archinitialize: Successfully bound SPI port 0 to the SPI FLASH driver\n");
+#warning "Now what are we going to do with this SPI FLASH driver?"
+#endif
+
+  /* Create the SPI FLASH MTD instance */
+  /* The M25Pxx is not a give media to implement a file system..
+   * its block sizes are too large
+   */
+
+  /* Mount the SDIO-based MMC/SD block driver */
+
+#ifdef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+  /* First, get an instance of the SDIO interface */
+
+  message("nsh_archinitialize: Initializing SDIO slot %d\n",
+          CONFIG_EXAMPLES_NSH_MMCSDSLOTNO);
+  sdio = sdio_initialize(CONFIG_EXAMPLES_NSH_MMCSDSLOTNO);
+  if (!sdio)
+    {
+      message("nsh_archinitialize: Failed to initialize SDIO slot %d\n",
+              CONFIG_EXAMPLES_NSH_MMCSDSLOTNO);
+      return -ENODEV;
+    }
+
+  /* Now bind the SPI interface to the MMC/SD driver */
+
+  message("nsh_archinitialize: Bind SDIO to the MMC/SD driver, minor=%d\n",
+          CONFIG_EXAMPLES_NSH_MMCSDMINOR);
+  ret = mmcsd_slotinitialize(CONFIG_EXAMPLES_NSH_MMCSDMINOR, sdio);
+  if (ret != OK)
+    {
+      message("nsh_archinitialize: Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
+      return ret;
+    }
+  message("nsh_archinitialize: Successfully bound SDIO to the MMC/SD driver\n");
+  
+  /* Then let's guess and say that there is a card in the slot.  I need to check to
+   * see if the VSN board supports a GPIO to detect if there is a card in
+   * the slot.
+   */
+
+   sdio_mediachange(sdio, true);
+#endif
+  return OK;
+}
diff --git a/nuttx/configs/vsn/src/up_spi.c b/nuttx/configs/vsn/src/up_spi.c
new file mode 100644
index 000000000..bfc5f8682
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_spi.c
@@ -0,0 +1,181 @@
+/************************************************************************************
+ * configs/vsn/src/up_spi.c
+ * arch/arm/src/board/up_spi.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * 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 <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/spi.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "chip.h"
+#include "stm32_internal.h"
+#include "vsn-internal.h"
+
+#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2)
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* Enables debug output from this file (needs CONFIG_DEBUG too) */
+
+#undef SPI_DEBUG   /* Define to enable debug */
+#undef SPI_VERBOSE /* Define to enable verbose debug */
+
+#ifdef SPI_DEBUG
+#  define spidbg  lldbg
+#  ifdef SPI_VERBOSE
+#    define spivdbg lldbg
+#  else
+#    define spivdbg(x...)
+#  endif
+#else
+#  undef SPI_VERBOSE
+#  define spidbg(x...)
+#  define spivdbg(x...)
+#endif
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32_spiinitialize
+ *
+ * Description:
+ *   Called to configure SPI chip select GPIO pins for the VSN board.
+ *
+ ************************************************************************************/
+
+void weak_function stm32_spiinitialize(void)
+{
+  /* NOTE: Clocking for SPI1 and/or SPI2 was already provided in stm32_rcc.c.
+   *       Configurations of SPI pins is performed in stm32_spi.c.
+   *       Here, we only initialize chip select pins unique to the board
+   *       architecture.
+   */
+
+#ifdef CONFIG_STM32_SPI1
+  /* Configure the SPI-based FLASH CS GPIO */
+
+  stm32_configgpio(GPIO_FLASH_CS);
+#endif
+}
+
+/****************************************************************************
+ * Name:  stm32_spi1/2/3select and stm32_spi1/2/3status
+ *
+ * Description:
+ *   The external functions, stm32_spi1/2/3select and stm32_spi1/2/3status must be
+ *   provided by board-specific logic.  They are implementations of the select
+ *   and status methods of the SPI interface defined by struct spi_ops_s (see
+ *   include/nuttx/spi.h). All other methods (including up_spiinitialize())
+ *   are provided by common STM32 logic.  To use this common SPI logic on your
+ *   board:
+ *
+ *   1. Provide logic in stm32_boardinitialize() to configure SPI chip select
+ *      pins.
+ *   2. Provide stm32_spi1/2/3select() and stm32_spi1/2/3status() functions in your
+ *      board-specific logic.  These functions will perform chip selection and
+ *      status operations using GPIOs in the way your board is configured.
+ *   3. Add a calls to up_spiinitialize() in your low level application
+ *      initialization logic
+ *   4. The handle returned by up_spiinitialize() may then be used to bind the
+ *      SPI driver to higher level logic (e.g., calling
+ *      mmcsd_spislotinitialize(), for example, will bind the SPI driver to
+ *      the SPI MMC/SD driver).
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_STM32_SPI1
+void stm32_spi1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+  spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+
+  if (devid == SPIDEV_FLASH)
+  {
+    /* Set the GPIO low to select and high to de-select */
+
+    stm32_gpiowrite(GPIO_FLASH_CS, !selected);
+  }
+}
+
+uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+  return SPI_STATUS_PRESENT;
+}
+#endif
+
+#ifdef CONFIG_STM32_SPI2
+void stm32_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+  spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+}
+
+uint8_t stm32_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+  return SPI_STATUS_PRESENT;
+}
+#endif
+
+#ifdef CONFIG_STM32_SPI3
+void stm32_spi3select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+  spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+}
+
+uint8_t stm32_spi3status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+  return SPI_STATUS_PRESENT;
+}
+#endif
+
+#endif /* CONFIG_STM32_SPI1 || CONFIG_STM32_SPI2 */
diff --git a/nuttx/configs/vsn/src/up_sysclock.c b/nuttx/configs/vsn/src/up_sysclock.c
new file mode 100644
index 000000000..c93b251c1
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_sysclock.c
@@ -0,0 +1,172 @@
+/****************************************************************************
+ * configs/vsn-1.2/src/up_sysclock.c
+ *
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ * 
+ *   Author: Uros Platise <uros.platise@isotel.eu>
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/** \file
+  */
+
+#include <arch/board/board.h>
+#include "stm32_rcc.h"
+#include "stm32_flash.h"
+#include "up_internal.h"
+#include "up_arch.h"
+#include "chip.h"
+
+
+		/*--- Private ---*/
+
+/** Selects internal HSI Clock, SYSCLK = 36 MHz, HCLK = 36 MHz
+  *  - HSI at 8 MHz, :2 enters DPLL * 9, to get 36 MHz
+  *  - AHB prescaler is set to 1 for maximum performance of all peripherals and FRAM (18 Mbps)
+  *  - Suitable for start-up and lower power operation
+  *  - Flash Wait State = 1, since it is 64-bit prefetch, it satisfies two 32-bit instructions
+  *    (and branch losses a single cycle only, I found this as the best performance vs. frequency)
+  *  - Sleep with peripherals disabled is about 2.5 mA @ 36 MHz, HSI
+  * 
+  * \todo:
+  *   - dynamic clock scalling according to cross-peripheral requirements, AHB prescaler could
+  *     change if all other prescalers increase, to maintain the ratio and to have min. HCLK
+  *     possible; This is of interest when peripherals consume 50% of all power, as for instance
+  *     in sleep mode @ 36 MHz, HSI with all peripherals enabled, i = 7 mA, on 24 Mhz 4.8 mA and
+  *     on 16 MHz 3.2 mA only. 
+  * 
+  * \return Nothing, operation is always successful.
+  */
+void stm32_board_select_hsi(void)
+{
+	uint32_t regval;
+
+	// Are we running on HSE?
+	regval = getreg32(STM32_RCC_CR);
+	if (regval & RCC_CR_HSEON) {
+		
+		// \todo: check is if we are running on HSE, we need the step down sequenuce from HSE -> HSI
+		
+		return;	// do nothing at this time
+	}
+	
+	// Set FLASH prefetch buffer and 1 wait state
+	regval  = getreg32(STM32_FLASH_ACR);
+	regval &= ~ACR_LATENCY_MASK;
+	regval |= (ACR_LATENCY_1|ACR_PRTFBE);
+	putreg32(regval, STM32_FLASH_ACR);
+	 
+    // Set the HCLK source/divider
+	regval = getreg32(STM32_RCC_CFGR);
+	regval &= ~RCC_CFGR_HPRE_MASK;
+	regval |= STM32_RCC_CFGR_HPRE_HSI;
+	putreg32(regval, STM32_RCC_CFGR);
+
+    // Set the PCLK2 divider
+    regval = getreg32(STM32_RCC_CFGR);
+    regval &= ~RCC_CFGR_PPRE2_MASK;
+    regval |= STM32_RCC_CFGR_PPRE2;
+    putreg32(regval, STM32_RCC_CFGR);
+  
+    // Set the PCLK1 divider
+    regval = getreg32(STM32_RCC_CFGR);
+    regval &= ~RCC_CFGR_PPRE1_MASK;
+    regval |= STM32_RCC_CFGR_PPRE1;
+    putreg32(regval, STM32_RCC_CFGR);
+ 
+    // Set the PLL source = HSI, divider (/2) and multipler (*9)
+	regval = getreg32(STM32_RCC_CFGR);
+	regval &= ~(RCC_CFGR_PLLSRC|RCC_CFGR_PLLXTPRE|RCC_CFGR_PLLMUL_MASK);
+	regval |= (STM32_CFGR_PLLSRC_HSI|STM32_CFGR_PLLMUL_HSI);
+	putreg32(regval, STM32_RCC_CFGR);
+ 
+    // Enable the PLL
+	regval = getreg32(STM32_RCC_CR);
+	regval |= RCC_CR_PLLON;
+	putreg32(regval, STM32_RCC_CR);
+ 
+    // Wait until the PLL is ready
+	while ((getreg32(STM32_RCC_CR) & RCC_CR_PLLRDY) == 0);
+ 
+    // Select the system clock source (probably the PLL)
+    regval  = getreg32(STM32_RCC_CFGR);
+    regval &= ~RCC_CFGR_SW_MASK;
+    regval |= STM32_SYSCLK_SW;
+    putreg32(regval, STM32_RCC_CFGR);
+
+    // Wait until the selected source is used as the system clock source
+    while ((getreg32(STM32_RCC_CFGR) & RCC_CFGR_SWS_MASK) != STM32_SYSCLK_SWS);
+}
+
+
+/** Selects external HSE Clock, SYSCLK = 72 MHz, HCLK = 36/72 MHz
+  *  - HSE at 9 MHz, DPLL * 8, to get 72 MHz
+  *  - Suitable for maximum performance and USB 
+  *  - Sleep power consumption at HSE and at 72 MHz is 5.5 mA (3.1 @ 36 MHz)
+  *  - Option AHB prescaler is set to :2 to be compatible with HSI to remain on HCLK = 36 MHz
+  *  - Flash memory running on 72 MHz needs two wait states
+  * 
+  * \return Clock selection status
+  * \retval 0 Successful
+  * \retval -1 External clock is not provided
+  * \retval -2 Could not lock to external clock
+  */
+int stm32_board_select_hse(void)
+{
+	// if (is cc1101 9 MHz clock output enabled), otherwise return with -1
+	// I think that clock register provides HSE valid signal to detect that as well.
+	
+	return 0;
+}
+
+
+		/*--- Interrupts ---*/
+
+
+/** TODO: Interrupt on lost HSE clock, change it to HSI, ... restarting is 
+  *   more complex as the step requires restart of CC1101 device driver;
+  *   so spawn a task for that... once cc1101 is restarted signal an event
+  *   to restart clock.
+  */
+void stm32_board_hse_lost(void)
+{
+}
+
+
+		/*--- Public API ---*/
+
+/** Setup system clock, enabled when:
+  *   - CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG
+  *  option is set in .config
+  */
+void stm32_board_clockconfig(void)
+{
+	stm32_board_select_hsi();
+}
diff --git a/nuttx/configs/vsn/src/up_usbdev.c b/nuttx/configs/vsn/src/up_usbdev.c
new file mode 100644
index 000000000..a30a8f8a1
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_usbdev.c
@@ -0,0 +1,123 @@
+/************************************************************************************
+ * configs/svsn/src/up_usbdev.c
+ * arch/arm/src/board/up_boot.c
+ *
+ *   Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
+ *   Copyright (c) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * 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 <sys/types.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/usb/usbdev.h>
+#include <nuttx/usb/usbdev_trace.h>
+
+#include "up_arch.h"
+#include "stm32_internal.h"
+#include "vsn-internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32_usbinitialize
+ *
+ * Description:
+ *   Called to setup USB-related GPIO pins for the VSN board.
+ *
+ ************************************************************************************/
+
+void stm32_usbinitialize(void)
+{
+  /* USB Soft Connect Pullup: PB.14 */
+
+#if defined(GPIO_USB_PULLUP)
+  stm32_configgpio(GPIO_USB_PULLUP);
+#endif
+}
+
+/************************************************************************************
+ * Name:  stm32_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 stm32_pullup.
+ *   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 stm32_usbpullup(FAR struct usbdev_s *dev, bool enable)
+{
+  usbtrace(TRACE_DEVPULLUP, (uint16_t)enable);
+#if defined(GPIO_USB_PULLUP)
+  stm32_gpiowrite(GPIO_USB_PULLUP, !enable);
+#endif
+  return OK;
+}
+
+/************************************************************************************
+ * Name:  stm32_usbsuspend
+ *
+ * Description:
+ *   Board logic must provide the stm32_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 stm32_usbsuspend(FAR struct usbdev_s *dev, bool resume)
+{
+  ulldbg("resume: %d\n", resume);
+}
+
diff --git a/nuttx/configs/vsn/src/up_usbstrg.c b/nuttx/configs/vsn/src/up_usbstrg.c
new file mode 100644
index 000000000..2a34bab40
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_usbstrg.c
@@ -0,0 +1,156 @@
+/****************************************************************************
+ * configs/vsn/src/up_usbstrg.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (c) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Configure and register the STM32 MMC/SD SDIO block driver.
+ *
+ * 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 <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/sdio.h>
+#include <nuttx/mmcsd.h>
+
+#include "vsn-internal.h"
+
+#ifdef CONFIG_STM32_SDIO
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#ifndef CONFIG_EXAMPLES_USBSTRG_DEVMINOR1
+#  define CONFIG_EXAMPLES_USBSTRG_DEVMINOR1 0
+#endif
+
+/* SLOT number(s) could depend on the board configuration */
+
+#ifdef CONFIG_ARCH_BOARD_VSN
+#  undef STM32_MMCSDSLOTNO
+#  define STM32_MMCSDSLOTNO 0
+#else
+   /* Add configuration for new STM32 boards here */
+#  error "Unrecognized STM32 board"
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) lib_lowprintf(__VA_ARGS__)
+#    define msgflush()
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#    define msgflush() fflush(stdout)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message lib_lowprintf
+#    define msgflush()
+#  else
+#    define message printf
+#    define msgflush() fflush(stdout)
+#  endif
+#endif
+
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: usbstrg_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int usbstrg_archinitialize(void)
+{
+  FAR struct sdio_dev_s *sdio;
+  int ret;
+
+  /* First, get an instance of the SDIO interface */
+
+  message("usbstrg_archinitialize: "
+          "Initializing SDIO slot %d\n",
+          STM32_MMCSDSLOTNO);
+
+  sdio = sdio_initialize(STM32_MMCSDSLOTNO);
+  if (!sdio)
+    {
+      message("usbstrg_archinitialize: Failed to initialize SDIO slot %d\n",
+              STM32_MMCSDSLOTNO);
+      return -ENODEV;
+    }
+
+  /* Now bind the SPI interface to the MMC/SD driver */
+
+  message("usbstrg_archinitialize: "
+          "Bind SDIO to the MMC/SD driver, minor=%d\n",
+          CONFIG_EXAMPLES_USBSTRG_DEVMINOR1);
+
+  ret = mmcsd_slotinitialize(CONFIG_EXAMPLES_USBSTRG_DEVMINOR1, sdio);
+  if (ret != OK)
+    {
+      message("usbstrg_archinitialize: "
+              "Failed to bind SDIO to the MMC/SD driver: %d\n",
+              ret);
+      return ret;
+    }
+  message("usbstrg_archinitialize: "
+          "Successfully bound SDIO to the MMC/SD driver\n");
+  
+  /* Then let's guess and say that there is a card in the slot.  I need to check to
+   * see if the VSN board supports a GPIO to detect if there is a card in
+   * the slot.
+   */
+
+   sdio_mediachange(sdio, true);
+   return OK;
+}
+
+#endif /* CONFIG_STM32_SDIO */
diff --git a/nuttx/configs/vsn/src/vsn-internal.h b/nuttx/configs/vsn/src/vsn-internal.h
new file mode 100644
index 000000000..832dff146
--- /dev/null
+++ b/nuttx/configs/vsn/src/vsn-internal.h
@@ -0,0 +1,121 @@
+/************************************************************************************

+ * configs/vsn/src/vsn-internal.h

+ * arch/arm/src/board/vsn-internal.n

+ *

+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.

+ *   Copyright (c) 2011 Uros Platise. All rights reserved.

+ *

+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>

+ *            Uros Platise <uros.platise@isotel.eu>

+ *

+ * 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_VSN_1_2_SRC_VSN_INTERNAL_H

+#define __CONFIGS_VSN_1_2_SRC_VSN_INTERNAL_H

+

+/************************************************************************************

+ * Included Files

+ ************************************************************************************/

+

+#include <nuttx/config.h>

+#include <nuttx/compiler.h>

+#include <stdint.h>

+

+/************************************************************************************

+ * Definitions

+ ************************************************************************************/

+

+/* How many SPI modules does this chip support? The LM3S6918 supports 2 SPI

+ * modules (others may support more -- in such case, the following must be

+ * expanded).

+ */

+

+#if STM32_NSPI < 1

+#  undef CONFIG_STM32_SPI1

+#  undef CONFIG_STM32_SPI2

+#elif STM32_NSPI < 2

+#  undef CONFIG_STM32_SPI2

+#endif

+

+/* VSN 1.2 GPIOs **************************************************************/

+

+/* LED */

+

+#define GPIO_LED		(GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN2)

+                         

+/* BUTTON - Note that after a good second button causes hardware reset */

+

+#define GPIO_PUSHBUTTON    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTC|GPIO_PIN5)

+

+/************************************************************************************

+ * Public Types

+ ************************************************************************************/

+

+/************************************************************************************

+ * Public data

+ ************************************************************************************/

+

+#ifndef __ASSEMBLY__

+

+/************************************************************************************

+ * Public Functions

+ ************************************************************************************/

+

+/************************************************************************************

+ * Name: stm32_spiinitialize

+ *

+ * Description:

+ *   Called to configure SPI chip select GPIO pins for the VSN board.

+ *

+ ************************************************************************************/

+

+extern void weak_function stm32_spiinitialize(void);

+

+/************************************************************************************

+ * Name: stm32_usbinitialize

+ *

+ * Description:

+ *   Called to setup USB-related GPIO pins for the VSN board.

+ *

+ ************************************************************************************/

+

+extern void weak_function stm32_usbinitialize(void);

+

+/************************************************************************************

+ * Name: stm32_extcontextsave

+ *

+ * Description:

+ *  Save current GPIOs that will used by external memory configurations

+ *

+ ************************************************************************************/

+

+#endif /* __ASSEMBLY__ */

+#endif /* __CONFIGS_VSN_1_2_SRC_VSN_INTERNAL_H */

+