From ffdd034c35f899fbed3de26401566d0b7caa58f1 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Wed, 31 Jul 2013 10:46:13 -0600
Subject: [PATCH] SAMA5: Add an NSH configuration of the SAMA5D3x-EK board

---
 ChangeLog                                   |   5 +-
 Documentation/NuttX.html                    |  50 +-
 arch/arm/src/sama5/sam_serial.c             |   4 +-
 configs/README.txt                          |  18 +-
 configs/sama5d3x-ek/README.txt              | 155 ++++-
 configs/sama5d3x-ek/nsh/Make.defs           | 136 ++++
 configs/sama5d3x-ek/nsh/defconfig           | 718 ++++++++++++++++++++
 configs/sama5d3x-ek/nsh/setenv.sh           |  76 +++
 configs/sama5d3x-ek/src/sam_cxxinitialize.c | 153 +++++
 9 files changed, 1291 insertions(+), 24 deletions(-)
 create mode 100644 configs/sama5d3x-ek/nsh/Make.defs
 create mode 100644 configs/sama5d3x-ek/nsh/defconfig
 create mode 100755 configs/sama5d3x-ek/nsh/setenv.sh
 create mode 100644 configs/sama5d3x-ek/src/sam_cxxinitialize.c

diff --git a/ChangeLog b/ChangeLog
index 07e149d686..ff3ac74a44 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5237,4 +5237,7 @@
 	* arch/arm/include/armv7-m:  Add irqdisable() (2013-7-30);
 	* configs/sama5d3-ek/src/nor_main.c:  Now disables interrupts
 	  before jumping to NOR flash (2013-7-30).
-
+	* configs/sama5d3-ek/nsh:  Add an NSH configuration for the
+	  SAMA5D3x-EK (2013-7-31)
+	* configs/sama5d3-ek/src/sam_cxxinitialize.c:  Add C++ support
+	  (2013-7-31).
diff --git a/Documentation/NuttX.html b/Documentation/NuttX.html
index f522cd43da..658f86b9b9 100644
--- a/Documentation/NuttX.html
+++ b/Documentation/NuttX.html
@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
-      <p>Last Updated: July 16, 2013</p>
+      <p>Last Updated: July 31, 2013</p>
     </td>
   </tr>
 </table>
@@ -1631,6 +1631,7 @@
       <li><a href="#arm7tdmi">ARM7TDMI</b></a> (5)</li>
       <li><a href="#arm920t">ARM920T</a> (1) </li>
       <li><a href="#arm926ejs">ARM926EJS</a> (3) </li>
+      <li><a href="#armcortexa5">ARM Cortex-A5</a> (1) </li>
       <li><a href="#armcortexm0">ARM Cortex-M0/M0+</a> (2)</li>
       <li><a href="#armcortexm3">ARM Cortex-M3</a> (20)</li>
       <li><a href="#armcortexm4">ARM Cortex-M4</a> (9)</li>
@@ -1698,6 +1699,7 @@
       <li><a href="#at91sam3x">Atmel AT91SAM3X</a> <small>(ARM Cortex-M3)</small></li>
       <li><a href="#at91sam4l">Atmel AT91SAM4L</a> <small>(ARM Cortex-M4)</small></li>
       <li><a href="#at91sam4s">Atmel AT91SAM4S</a> <small>(ARM Cortex-M4)</small></li>
+      <li><a href="#at91sama5d">Atmel AT91SAMA5D</a> <small>(ARM Cortex-A5)</small></li>
     </ul>
   </li>
   <li>Freescale
@@ -2092,6 +2094,52 @@
     </ul>
   </td>
 </tr>
+<tr>
+  <td valign="top"><img height="20" width="20" src="favicon.ico"></td>
+  <td bgcolor="#5eaee1">
+    <a name="armcortexa5"><b>ARM Cortex-A5</b>.</a>
+  </td>
+</tr>
+<tr>
+  <td><br></td>
+  <td>
+    <p>
+      <a name="at91sama5d"><b>Atmel SAMA5D</b>.</a>
+        This is the  port of NuttX to the Atmel SAMA5D3x-EK development boards (where x=1,3,4, or 5).
+        These boards feature the Atmel SAMA5D3 microprocessors.
+        Four different SAMA5D3x-EK kits are available
+    </p>
+    <ul>
+      <li>SAMA5D31-EK with the <a href="http://www.atmel.com/devices/sama5d31.aspx">ATSAMA5D1</a></li>
+      <li>SAMA5D33-EK with the <a href="http://www.atmel.com/devices/sama5d33.aspx">ATSAMA5D3</a></li>
+      <li>SAMA5D34-EK with the <a href="http://www.atmel.com/devices/sama5d34.aspx">ATSAMA5D4</a></li>
+      <li>SAMA5D35-EK with the <a href="http://www.atmel.com/devices/sama5d35.aspx">ATSAMA5D5</a></li>
+    </ul>
+    <p>
+      The each kit consist of an identical base board with different plug-in modules for each CPU.
+      An option 7 inch LCD is also available.
+      All four boards are supported by NuttX with a simple reconfiguration of the processor type.
+    </p>
+    <p>
+      There is also the SAMA5D3FAE-EK bundle includes everything:  The base board, all four CPU modules, and the LCD.
+    </p>
+    <ul>
+      <p>
+        <b>STATUS</b>.
+        Initial support for the NUC120 was released in NuttX-6.29.
+        This initial support is very minimal:
+        There are simple test configurations that run out of internal SRAM and two configurations that run out of the on-boar NOR FLASH:
+        (1) An OS test configuration that verifies the correct port of NuttX to the part and
+        (2) a NuttShell (<a href="NuttShell.html">NSH</a>) configuration that might be the basis for further application development.
+        As of this writing, more device drivers are needed to make this a more complete port.
+        Refer to the NuttX board <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/sama5d3x-ek/README.txt">README</a> file for further information.
+      </p>
+        <b>Development Environments:</b>
+        1) Linux with native Linux GNU toolchain, 2) Cygwin/MSYS with Cygwin GNU toolchain, 3) Cygwin/MSYS  with Windows native toolchain, or 4) Native Windows.
+        All testing has been perfomed with the CodeSourcery toolchain (GCC version 4.7.3) in the Cygwin environment under Windows.
+    </p>
+  </td>
+</tr>
 <tr>
   <td valign="top"><img height="20" width="20" src="favicon.ico"></td>
   <td bgcolor="#5eaee1">
diff --git a/arch/arm/src/sama5/sam_serial.c b/arch/arm/src/sama5/sam_serial.c
index 094c0ba5a5..017584c4fd 100644
--- a/arch/arm/src/sama5/sam_serial.c
+++ b/arch/arm/src/sama5/sam_serial.c
@@ -1111,7 +1111,7 @@ static bool up_txempty(struct uart_dev_s *dev)
  ****************************************************************************/
 
 /****************************************************************************
- * Name: up_earlyserialinit
+ * Name: sam_earlyserialinit
  *
  * Description:
  *   Performs the low level USART initialization early in debug so that the
@@ -1120,7 +1120,7 @@ static bool up_txempty(struct uart_dev_s *dev)
  *
  ****************************************************************************/
 
-void up_earlyserialinit(void)
+void sam_earlyserialinit(void)
 {
   /* NOTE:  All GPIO configuration for the USARTs was performed in
    * sam_lowsetup
diff --git a/configs/README.txt b/configs/README.txt
index 17cfed5c0b..c8237de024 100644
--- a/configs/README.txt
+++ b/configs/README.txt
@@ -1964,8 +1964,22 @@ configs/rgmp
   information about RGMP.
 
 configs/sama5d3x-ek
-  The port of NuttX to the Atmel SAMA5D3x-EK development board (where
-  x=1,3,4, or 5).
+  This is the  port of NuttX to the Atmel SAMA5D3x-EK development boards
+  (where x=1,3,4, or 5).  These boards feature the Atmel SAMA5D3
+  microprocessors.  Four different SAMA5D3x-EK kits are available
+
+    - SAMA5D31-EK with the ATSAMA5D1 (http://www.atmel.com/devices/sama5d31.aspx)
+    - SAMA5D33-EK with the ATSAMA5D3 (http://www.atmel.com/devices/sama5d33.aspx)
+    - SAMA5D34-EK with the ATSAMA5D4 (http://www.atmel.com/devices/sama5d34.aspx)
+    - SAMA5D35-EK with the ATSAMA5D5 (http://www.atmel.com/devices/sama5d35.aspx)
+
+  The each consist of an identical base board with different plug-in modules
+  for each CPU.  An option 7 inch LCD is also available.  All four boards
+  are supported by NuttX with a simple reconfiguration of the processor
+  type.
+
+  There is also the SAMA5D3FAE-EK bundle includes everything:  The base
+  board, all four CPU modules, and the LCD.
 
 configs/sam3u-ek
   The port of NuttX to the Atmel SAM3U-EK development board.
diff --git a/configs/sama5d3x-ek/README.txt b/configs/sama5d3x-ek/README.txt
index 66a7e760b2..901c052591 100644
--- a/configs/sama5d3x-ek/README.txt
+++ b/configs/sama5d3x-ek/README.txt
@@ -3,7 +3,7 @@ README
 
   This README file describes the port of NuttX to the SAMA5D3x-EK
   development boards. These boards feature the Atmel SAMA5D3
-  microprocessors.  Three different SAMA5D3x-EK kits are available
+  microprocessors.  Four different SAMA5D3x-EK kits are available
 
     - SAMA5D31-EK with the ATSAMA5D1 (http://www.atmel.com/devices/sama5d31.aspx)
     - SAMA5D33-EK with the ATSAMA5D3 (http://www.atmel.com/devices/sama5d31.aspx)
@@ -73,6 +73,7 @@ Contents
   - NXFLAT Toolchain
   - Loading Code into SRAM with J-Link
   - Writing to FLASH using SAM-BA
+  - Creating and Using NORBOOT
   - Buttons and LEDs
   - Serial Consoles
   - SAMA5D3x-EK Configuration Options
@@ -341,6 +342,80 @@ Writing to FLASH using SAM-BA
   you provide a special code header so that you code can be recognized as a
   boot-able image by the ROM bootloader.
 
+Creating and Using NORBOOT
+==========================
+
+  In order to have more control of debugging code that runs out of NOR FLASH,
+  I created the sama5d3x-ek/norboot configuration.  That configuration is
+  described below under "Configurations."
+
+  Here are some general instructions on how to build an use norboot:
+
+  Building:
+  1. Remove any old configurations (if applicable).
+
+       cd <nuttx>
+       make distclean
+
+  2. Install and build the norboot configuration:
+
+       cd tools
+       ./configure.sh sama5d3x-ek/<subdir>
+       cd -
+       . ./setenv.sh
+
+     Before sourcing the setenv.sh file above, you should examine it and
+     perform edits as necessary so that TOOLCHAIN_BIN is the correct path
+     to the directory than holds your toolchain binaries.
+
+  3. Rename the binaries.  Since you will need two versions of NuttX:  this
+     norboot version that runs in internal SRAM and another under test in
+     NOR FLASH, I rename the resulting binary files so that they can be
+     distinguished:
+
+       mv nuttx norboot
+       mv nuttx.hex norboot.hex
+       mv nuttx.bin norboot.bin
+
+  4. Build your NOR configuration and write this into NOR FLASH.  Here, for
+     example, is how you would create the NSH NOR configuration:
+
+       cd <nuttx>
+       make distclean                 # Remove the norboot configuration
+       cd tools
+       ./configure.sh sama5d3x-ek/nsh # Establish the NSH configuration
+       cd -
+       make                           # Build the NSH configuration
+
+     Then use SAM-BA to write the nuttx.bin binary into NOR FLASH.  This
+     will involve holding the CS_BOOT button and power cycling to start
+     the ROM loader.  The SAM-BA serial connection will be on the device
+     USB port, not the debug USB port.  Follow the SAM-BA instruction to
+     write the nuttx.bin binary to NOR FLASH.
+
+   5. Restart the system without holding CS_BOOT to get back to the normal
+      debug setup.
+
+   6. Then start the J-Link GDB server and GDB.  In GDB, I do the following:
+
+       (gdb) mon reset                # Reset and halt the CPU
+       (gdb) load norboot             # Load norboot into internal SRAM
+       (gdb) mon go                   # Start norboot
+       (gdb) mon halt                 # Break in
+       (gdb) mon reg pc = 0x10000040  # Set the PC to NOR flash entry point
+       (gdb) mon go                   # And jump into NOR flash
+
+      The norboot program can also be configured to jump directly into
+      NOR FLASH with out requiring the the final halt and go, but since I
+      have been debugging the early boot sequence, the above sequence has
+      been most convenient for me.
+
+    STATUS:
+      2013-7-30:  I have been unable to execute this configuration from NOR
+        FLASH by closing the BMS jumper (J9).  As far as I can tell, this
+        jumper does nothing on my board???  So I have been using the norboot
+        configuration exclusively to start the program-under-test in NOR FLASH.
+
 Buttons and LEDs
 ================
 
@@ -608,7 +683,7 @@ Configurations
     . ./setenv.sh
 
   Before sourcing the setenv.sh file above, you should examine it and perform
-  edits as necessary so that BUILDROOT_BIN is the correct path to the directory
+  edits as necessary so that TOOLCHAIN_BIN is the correct path to the directory
   than holds your toolchain binaries.
 
   And then build NuttX by simply typing the following.  At the conclusion of
@@ -713,6 +788,58 @@ Configurations
     1. This program derives from the hello configuration.  All of the
        notes there apply to this configuration as well.
 
+  nsh:
+    This configuration directory provide the NuttShell (NSH).
+
+    NOTES:
+    1. This configuration uses the default USART1 serial console.  That
+       is easily changed by reconfiguring to (1) enable a different
+       serial peripheral, and (2) selecting that serial peripheral as
+       the console device.
+
+    2. By default, this configuration is set up to build on Windows
+       under either a Cygwin or MSYS environment using a recent, Windows-
+       native, generic ARM EABI GCC toolchain (such as the CodeSourcery
+       toolchain).  Both the build environment and the toolchain
+       selection can easily be changed by reconfiguring:
+
+       CONFIG_HOST_WINDOWS=y                   : Windows operating system
+       CONFIG_WINDOWS_CYGWIN=y                 : POSIX environment under windows
+       CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
+
+    3. This configuration executes out of CS0 NOR flash and can only
+       be loaded via SAM-BA.  These are the relevant configuration options
+       the define the NOR FLASH configuration:
+
+       CONFIG_SAMA5_BOOT_CS0FLASH=y            : Boot from FLASH on CS0
+       CONFIG_BOOT_RUNFROMFLASH=y              : Run in place on FLASH (vs copying to RAM)
+
+       CONFIG_SAMA5_EBICS0=y                   : Enable CS0 external memory
+       CONFIG_SAMA5_EBICS0_SIZE=134217728      : Memory size is 128KB
+       CONFIG_SAMA5_EBICS0_NOR=y               : Memory type is NOR FLASH
+
+       CONFIG_FLASH_START=0x10000000           : Physical FLASH start address
+       CONFIG_FLASH_VSTART=0x10000000          : Virtual FLASH start address
+       CONFIG_FLASH_SIZE=134217728             : FLASH size (again)
+
+       CONFIG_RAM_START=0x00300400             : Data stored after page table
+       CONFIG_RAM_VSTART=0x00300400
+       CONFIG_RAM_SIZE=114688                  : Available size of 128KB - 16KB for page table
+
+       NOTE:  In order to boot in this configuration, you need to close the
+       BMS jumper.
+
+    4. This configuration has support for NSH built-in applications enabled.
+       However, no built-in applications are selected in the base configuration.
+
+    STATUS:
+      2013-7-31:  I have been unable to execute this configuration from NOR
+        FLASH by closing the BMS jumper (J9).  As far as I can tell, this
+        jumper does nothing on my board???  I have been using the norboot
+        configuration to start the program in NOR FLASH (see just above).
+        See "Creating and Using NORBOOT" above.
+      2013-7-31:  This NSH configuration appears to be fully functional.
+
   ostest:
     This configuration directory, performs a simple OS test using
     examples/ostest.
@@ -734,7 +861,8 @@ Configurations
        CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
 
     3. This configuration executes out of CS0 NOR flash and can only
-       be loaded via JTAG.  128MB
+       be loaded via SAM-BA.  These are the relevant configuration options
+       the define the NOR FLASH configuration:
 
        CONFIG_SAMA5_BOOT_CS0FLASH=y            : Boot from FLASH on CS0
        CONFIG_BOOT_RUNFROMFLASH=y              : Run in place on FLASH (vs copying to RAM)
@@ -759,20 +887,11 @@ Configurations
         FLASH by closing the BMS jumper (J9).  As far as I can tell, this
         jumper does nothing on my board???  I have been using the norboot
         configuration to start the program in NOR FLASH (see just above).
-        I do that as follows:
-
-        1. I build the norboot configuration and rename nuttx to norboot
-        2. I build the the ostest configuration and write it to NOR FLASH
-           using SAM-BA
-        3. Then I start the J-Link GDB server and GDB.  In GDB, I do the
-           following:
-
-           (gdb) mon reset                # Reset and halt the CPU
-           (gdb) load norboot             # Load norboot into internal SRAM
-           (gdb) mon go                   # Start norboot
-           (gdb) mon halt                 # Break in
-           (gdb) mon reg pc = 0x10000040  # Set the PC to NOR flash entry point
-           (gdb) mon go                   # And jump into NOR flash
+        See "Creating and Using NORBOOT" above.
 
        2013-7-31:
-         The OS test configuration is functional.
+         The OS test configuration is basically functional, but takes a very
+         long time in the round-robin scheduler test computing prime numbers.
+         This test is suppose to be slow -- like several seconds -- but not
+         many minutes.  No idea why yet.  The best guess would be an excessive
+         number of context switches.
diff --git a/configs/sama5d3x-ek/nsh/Make.defs b/configs/sama5d3x-ek/nsh/Make.defs
new file mode 100644
index 0000000000..f8629606a0
--- /dev/null
+++ b/configs/sama5d3x-ek/nsh/Make.defs
@@ -0,0 +1,136 @@
+############################################################################
+# configs/sama5d3x-ek/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 ${TOPDIR}$(DELIM)arch$(DELIM)arm$(DELIM)src$(DELIM)armv7-a$(DELIM)Toolchain.defs
+
+ifeq ($(CONFIG_SAMA5_BOOT_ISRAM),y)
+  LDSCRIPT = isram.ld
+endif
+ifeq ($(CONFIG_SAMA5_BOOT_SDRAM),y)
+  LDSCRIPT = ddram.ld
+endif
+ifeq ($(CONFIG_SAMA5_BOOT_CS0FLASH),y)
+  LDSCRIPT = norflash.ld
+endif
+ifeq ($(CONFIG_SAMA5_BOOT_CS1FLASH),y)
+#  LDSCRIPT = cs1flash.ld
+endif
+ifeq ($(CONFIG_SAMA5_BOOT_CS2FLASH),y)
+#  LDSCRIPT = cs2flash.ld
+endif
+ifeq ($(CONFIG_SAMA5_BOOT_CS3FLASH),y)
+#  LDSCRIPT = cs3flash.ld
+endif
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
+  ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
+  MAXOPTIMIZATION = -O2
+else
+  # Linux/Cygwin-native toolchain
+  ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
+  ARCHXXINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include -isystem $(TOPDIR)$(DELIM)include$(DELIM)cxx
+  ARCHSCRIPT = -T$(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(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 = $(CROSSDEV)objdump
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g
+else
+  ARCHOPTIMIZATION = $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCPUFLAGS = -mcpu=cortex-a5 -mfpu=vfpv4-d16
+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)$(DELIM)binfmt$(DELIM)libnxflat$(DELIM)gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+ifneq ($(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 = $(TOPDIR)$(DELIM)tools$(DELIM)copydir.sh
+  DIRUNLINK = $(TOPDIR)$(DELIM)tools$(DELIM)unlink.sh
+  MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mknulldeps.sh
+else
+  # Linux/Cygwin-native host tools 
+  MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mkdeps$(HOSTEXEEXT)
+endif
+
diff --git a/configs/sama5d3x-ek/nsh/defconfig b/configs/sama5d3x-ek/nsh/defconfig
new file mode 100644
index 0000000000..0c8d50b876
--- /dev/null
+++ b/configs/sama5d3x-ek/nsh/defconfig
@@ -0,0 +1,718 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# Nuttx/ Configuration
+#
+CONFIG_NUTTX_NEWCONFIG=y
+
+#
+# Build Setup
+#
+# CONFIG_EXPERIMENTAL is not set
+# CONFIG_HOST_LINUX is not set
+# CONFIG_HOST_OSX is not set
+CONFIG_HOST_WINDOWS=y
+# CONFIG_HOST_OTHER is not set
+# CONFIG_WINDOWS_NATIVE is not set
+CONFIG_WINDOWS_CYGWIN=y
+# 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 is not set
+# 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_KL 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_NUC1XX is not set
+CONFIG_ARCH_CHIP_SAMA5=y
+# CONFIG_ARCH_CHIP_SAM34 is not set
+# CONFIG_ARCH_CHIP_STM32 is not set
+# CONFIG_ARCH_CHIP_STR71X is not set
+# CONFIG_ARCH_ARM7TDMI is not set
+# CONFIG_ARCH_ARM926EJS is not set
+# CONFIG_ARCH_ARM920T is not set
+# CONFIG_ARCH_CORTEXM0 is not set
+# CONFIG_ARCH_CORTEXM3 is not set
+# CONFIG_ARCH_CORTEXM4 is not set
+CONFIG_ARCH_CORTEXA5=y
+CONFIG_ARCH_FAMILY="armv7-a"
+CONFIG_ARCH_CHIP="sama5"
+CONFIG_ARCH_HAVE_FPU=y
+CONFIG_ARCH_FPU=y
+# CONFIG_ARCH_HAVE_MPU is not set
+CONFIG_ARCH_HAVE_LOWVECTORS=y
+CONFIG_ARCH_LOWVECTORS=y
+CONFIG_PGTABLE_VADDR=0x20000000
+# CONFIG_ARCH_ROMPGTABLE is not set
+# CONFIG_PAGING is not set
+
+#
+# ARMv7-A Configuration Options
+#
+# CONFIG_ARMV7A_TOOLCHAIN_BUILDROOT is not set
+CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y
+# CONFIG_ARMV7A_TOOLCHAIN_DEVKITARM is not set
+# CONFIG_ARMV7A_TOOLCHAIN_GNU_EABIL is not set
+# CONFIG_ARMV7A_TOOLCHAIN_GNU_EABIW is not set
+# CONFIG_ARMV7A_TOOLCHAIN_GNU_OABI is not set
+
+#
+# ATSAMA5 Configuration Options
+#
+# CONFIG_ARCH_CHIP_ATSAMA5D31 is not set
+CONFIG_ARCH_CHIP_ATSAMA5D33=y
+# CONFIG_ARCH_CHIP_ATSAMA5D34 is not set
+# CONFIG_ARCH_CHIP_ATSAMA5D35 is not set
+
+#
+# ATSAMA5 Peripheral Support
+#
+# CONFIG_SAMA5_DBGU is not set
+# CONFIG_SAMA5_PIT is not set
+# CONFIG_SAMA5_WDT is not set
+# CONFIG_SAMA5_HSMC is not set
+# CONFIG_SAMA5_SMD is not set
+# CONFIG_SAMA5_UART0 is not set
+# CONFIG_SAMA5_UART1 is not set
+# CONFIG_SAMA5_USART0 is not set
+CONFIG_SAMA5_USART1=y
+# CONFIG_SAMA5_USART2 is not set
+# CONFIG_SAMA5_USART3 is not set
+# CONFIG_SAMA5_TWI0 is not set
+# CONFIG_SAMA5_TWI1 is not set
+# CONFIG_SAMA5_TWI2 is not set
+# CONFIG_SAMA5_HSMCI0 is not set
+# CONFIG_SAMA5_HSMCI1 is not set
+# CONFIG_SAMA5_HSMCI2 is not set
+# CONFIG_SAMA5_SPI0 is not set
+# CONFIG_SAMA5_SPI1 is not set
+# CONFIG_SAMA5_TC0 is not set
+# CONFIG_SAMA5_TC1 is not set
+# CONFIG_SAMA5_PWM is not set
+# CONFIG_SAMA5_ADC is not set
+# CONFIG_SAMA5_DMAC0 is not set
+# CONFIG_SAMA5_DMAC1 is not set
+# CONFIG_SAMA5_UHPHS is not set
+# CONFIG_SAMA5_UDPHS is not set
+# CONFIG_SAMA5_GMAC is not set
+# CONFIG_SAMA5_EMAC is not set
+# CONFIG_SAMA5_LCDC is not set
+# CONFIG_SAMA5_ISI is not set
+# CONFIG_SAMA5_SSC0 is not set
+# CONFIG_SAMA5_SSC1 is not set
+# CONFIG_SAMA5_CAN0 is not set
+# CONFIG_SAMA5_CAN1 is not set
+# CONFIG_SAMA5_SHA is not set
+# CONFIG_SAMA5_AES is not set
+# CONFIG_SAMA5_TDES is not set
+# CONFIG_SAMA5_TRNG is not set
+# CONFIG_SAMA5_ARM is not set
+# CONFIG_SAMA5_FUSE is not set
+# CONFIG_SAMA5_MPDDRC is not set
+# CONFIG_PIO_IRQ is not set
+
+#
+# External Memory Configuration
+#
+# CONFIG_SAMA5_DDRCS is not set
+CONFIG_SAMA5_EBICS0=y
+CONFIG_SAMA5_EBICS0_SIZE=134217728
+# CONFIG_SAMA5_EBICS0_SRAM is not set
+# CONFIG_SAMA5_EBICS0_PSRAM is not set
+# CONFIG_SAMA5_EBICS0_PROM is not set
+# CONFIG_SAMA5_EBICS0_EEPROM is not set
+# CONFIG_SAMA5_EBICS0_EPROM is not set
+# CONFIG_SAMA5_EBICS0_LCD is not set
+CONFIG_SAMA5_EBICS0_NOR=y
+# CONFIG_SAMA5_EBICS0_NAND is not set
+# CONFIG_SAMA5_EBICS1 is not set
+# CONFIG_SAMA5_EBICS2 is not set
+# CONFIG_SAMA5_EBICS3 is not set
+# CONFIG_SAMA5_BOOT_ISRAM is not set
+CONFIG_SAMA5_BOOT_CS0FLASH=y
+
+#
+# Heap Configuration
+#
+CONFIG_SAMA5_ISRAM_HEAP=y
+
+#
+# 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_HAVE_MMU=y
+CONFIG_ARCH_STACKDUMP=y
+# CONFIG_ENDIAN_BIG is not set
+# CONFIG_ARCH_HAVE_RAMFUNCS is not set
+# CONFIG_ARCH_HAVE_RAMVECTORS is not set
+
+#
+# Board Settings
+#
+CONFIG_BOARD_LOOPSPERMSEC=16717
+# CONFIG_ARCH_CALIBRATION is not set
+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
+
+#
+# Boot Memory Configuration
+#
+CONFIG_RAM_START=0x00304000
+CONFIG_RAM_VSTART=0x00304000
+CONFIG_RAM_SIZE=114688
+CONFIG_FLASH_START=0x10000000
+CONFIG_FLASH_VSTART=0x10000000
+CONFIG_FLASH_SIZE=134217728
+
+#
+# Board Selection
+#
+CONFIG_ARCH_BOARD_SAMA5D3X_EK=y
+# CONFIG_ARCH_BOARD_CUSTOM is not set
+CONFIG_ARCH_BOARD="sama5d3x-ek"
+
+#
+# Common Board Options
+#
+CONFIG_ARCH_HAVE_LEDS=y
+CONFIG_ARCH_LEDS=y
+CONFIG_ARCH_HAVE_BUTTONS=y
+# CONFIG_ARCH_BUTTONS is not set
+CONFIG_ARCH_HAVE_IRQBUTTONS=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 is not set
+# CONFIG_JULIAN_TIME is not set
+CONFIG_START_YEAR=2013
+CONFIG_START_MONTH=7
+CONFIG_START_DAY=31
+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_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=16
+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=2048
+CONFIG_PTHREAD_STACK_MIN=256
+CONFIG_PTHREAD_STACK_DEFAULT=2048
+
+#
+# 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_AUDIO_DEVICES 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_SERIAL=y
+# CONFIG_DEV_LOWCONSOLE is not set
+# CONFIG_16550_UART is not set
+CONFIG_ARCH_HAVE_USART1=y
+
+#
+# USART Configuration
+#
+CONFIG_USART1_ISUART=y
+CONFIG_MCU_SERIAL=y
+CONFIG_STANDARD_SERIAL=y
+CONFIG_USART1_SERIAL_CONSOLE=y
+# CONFIG_NO_SERIAL_CONSOLE is not set
+
+#
+# USART1 Configuration
+#
+CONFIG_USART1_RXBUFSIZE=256
+CONFIG_USART1_TXBUFSIZE=256
+CONFIG_USART1_BAUD=115200
+CONFIG_USART1_BITS=8
+CONFIG_USART1_PARITY=0
+CONFIG_USART1_2STOP=0
+# CONFIG_USART1_IFLOWCONTROL is not set
+# CONFIG_USART1_OFLOWCONTROL is not set
+# CONFIG_SERIAL_IFLOWCONTROL is not set
+# CONFIG_SERIAL_OFLOWCONTROL is not set
+# 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
+# CONFIG_FS_BINFS 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_MULTIHEAP is not set
+# CONFIG_MM_SMALL is not set
+CONFIG_MM_REGIONS=1
+# CONFIG_GRAN is not set
+
+#
+# Audio Support
+#
+# CONFIG_AUDIO is not set
+
+#
+# Binary Formats
+#
+# CONFIG_BINFMT_DISABLE is not set
+# CONFIG_NXFLAT is not set
+# CONFIG_ELF is not set
+CONFIG_BUILTIN=y
+# CONFIG_PIC is not set
+CONFIG_SYMTAB_ORDEREDBYNAME=y
+
+#
+# Library Routines
+#
+
+#
+# Standard C Library Options
+#
+CONFIG_STDIO_BUFFER_SIZE=64
+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_LIB_RAND_ORDER=1
+# 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=2048
+# 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 Library Support
+#
+# CONFIG_SCHED_WORKQUEUE is not set
+# CONFIG_LIB_KBDCODEC is not set
+# CONFIG_LIB_SLCDCODEC is not set
+
+#
+# Basic CXX Support
+#
+# CONFIG_C99_BOOL8 is not set
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+# CONFIG_CXX_NEWLONG is not set
+
+#
+# uClibc++ Standard C++ Library
+#
+# CONFIG_UCLIBCXX is not set
+
+#
+# Application Configuration
+#
+
+#
+# Built-In Applications
+#
+CONFIG_BUILTIN_PROXY_STACKSIZE=1024
+
+#
+# Examples
+#
+# CONFIG_EXAMPLES_BUTTONS is not set
+# CONFIG_EXAMPLES_CAN is not set
+# CONFIG_EXAMPLES_COMPOSITE is not set
+# CONFIG_EXAMPLES_CXXTEST 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_MODBUS is not set
+# CONFIG_EXAMPLES_MOUNT is not set
+# CONFIG_EXAMPLES_NRF24L01TERM is not set
+CONFIG_EXAMPLES_NSH=y
+CONFIG_EXAMPLES_NSH_CXXINITIALIZE=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_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_SLCD is not set
+# CONFIG_EXAMPLES_SMART_TEST is not set
+# CONFIG_EXAMPLES_SMART is not set
+# CONFIG_EXAMPLES_TCPECHO 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
+
+#
+# Graphics Support
+#
+# CONFIG_TIFF 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
+CONFIG_NSH_BUILTIN_APPS=y
+
+#
+# Disable Individual commands
+#
+# CONFIG_NSH_DISABLE_CAT is not set
+# CONFIG_NSH_DISABLE_CD is not set
+# CONFIG_NSH_DISABLE_CP is not set
+# CONFIG_NSH_DISABLE_CMP is not set
+# CONFIG_NSH_DISABLE_DD is not set
+# 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 is not set
+# CONFIG_NSH_DISABLE_HELP is not set
+# CONFIG_NSH_DISABLE_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_IFCONFIG is not set
+# CONFIG_NSH_DISABLE_KILL is not set
+# CONFIG_NSH_DISABLE_LOSETUP is not set
+# CONFIG_NSH_DISABLE_LS is not set
+# CONFIG_NSH_DISABLE_MB is not set
+# CONFIG_NSH_DISABLE_MKDIR is not set
+# CONFIG_NSH_DISABLE_MKFATFS is not set
+# CONFIG_NSH_DISABLE_MKFIFO is not set
+# CONFIG_NSH_DISABLE_MKRD is not set
+# CONFIG_NSH_DISABLE_MH is not set
+# CONFIG_NSH_DISABLE_MOUNT is not set
+# CONFIG_NSH_DISABLE_MW is not set
+# CONFIG_NSH_DISABLE_NSFMOUNT is not set
+# CONFIG_NSH_DISABLE_PS is not set
+# CONFIG_NSH_DISABLE_PING is not set
+# CONFIG_NSH_DISABLE_PUT is not set
+# CONFIG_NSH_DISABLE_PWD is not set
+# CONFIG_NSH_DISABLE_RM is not set
+# CONFIG_NSH_DISABLE_RMDIR is not set
+# 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 is not set
+# CONFIG_NSH_DISABLE_UNSET is not set
+# CONFIG_NSH_DISABLE_USLEEP is not set
+# CONFIG_NSH_DISABLE_WGET is not set
+# CONFIG_NSH_DISABLE_XD is not set
+
+#
+# Configure Command Options
+#
+# CONFIG_NSH_CMDOPT_DF_H is not set
+CONFIG_NSH_CODECS_BUFSIZE=128
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=80
+CONFIG_NSH_MAXARGUMENTS=6
+CONFIG_NSH_NESTDEPTH=3
+# CONFIG_NSH_DISABLESCRIPT is not set
+# 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
+
+#
+# FLASH Erase-all Command
+#
+
+#
+# RAM test
+#
+# CONFIG_SYSTEM_RAMTEST 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
+#
+
+#
+# Zmodem Commands
+#
+# CONFIG_SYSTEM_ZMODEM is not set
diff --git a/configs/sama5d3x-ek/nsh/setenv.sh b/configs/sama5d3x-ek/nsh/setenv.sh
new file mode 100755
index 0000000000..5145f93a03
--- /dev/null
+++ b/configs/sama5d3x-ek/nsh/setenv.sh
@@ -0,0 +1,76 @@
+#!/bin/bash
+# configs/samard3x-ek/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="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the Atmel GCC
+# toolchain under Windows.  You will also have to edit this if you install
+# this toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atmel/Atmel Toolchain/ARM GCC/Native/4.7.3.99/arm-gnu-toolchain/bin"
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
+
+# These are the Cygwin paths to the locations where I installed the Atollic
+# toolchain under windows.  You will also have to edit this if you install
+# the Atollic toolchain in any other location.  /usr/bin is added before
+# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
+# at those locations as well.
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+#export TOOLCHAIN_BIN="${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/configs/sama5d3x-ek/src/sam_cxxinitialize.c b/configs/sama5d3x-ek/src/sam_cxxinitialize.c
new file mode 100644
index 0000000000..563c10d7a3
--- /dev/null
+++ b/configs/sama5d3x-ek/src/sam_cxxinitialize.c
@@ -0,0 +1,153 @@
+/************************************************************************************
+ * configs/sama5dx-ek/src/sam_cxxinitialize.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 <nuttx/arch.h>
+
+#include <arch/sama5/chip.h>
+#include "chip.h"
+
+#if defined(CONFIG_HAVE_CXX) && defined(CONFIG_HAVE_CXXINITIALIZE)
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+/* Debug ****************************************************************************/
+/* Non-standard debug that may be enabled just for testing the static constructors */
+
+#ifndef CONFIG_DEBUG
+#  undef CONFIG_DEBUG_CXX
+#endif
+
+#ifdef CONFIG_DEBUG_CXX
+#  define cxxdbg              dbg
+#  define cxxlldbg            lldbg
+#  ifdef CONFIG_DEBUG_VERBOSE
+#    define cxxvdbg           vdbg
+#    define cxxllvdbg         llvdbg
+#  else
+#    define cxxvdbg(x...)
+#    define cxxllvdbg(x...)
+#  endif
+#else
+#  define cxxdbg(x...)
+#  define cxxlldbg(x...)
+#  define cxxvdbg(x...)
+#  define cxxllvdbg(x...)
+#endif
+
+/************************************************************************************
+ * Private Types
+ ************************************************************************************/
+/* This type defines one entry in initialization array */
+
+typedef void (*initializer_t)(void);
+
+/************************************************************************************
+ * External references
+ ************************************************************************************/
+/* _sinit and _einit are symbols exported by the linker script that mark the
+ * beginning and the end of the C++ initialization section.
+ */
+
+extern initializer_t _sinit;
+extern initializer_t _einit;
+
+/* _stext and _etext are symbols exported by the linker script that mark the
+ * beginning and the end of text.
+ */
+
+extern uint32_t _stext;
+extern uint32_t _etext;
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/****************************************************************************
+ * Name: up_cxxinitialize
+ *
+ * Description:
+ *   If C++ and C++ static constructors are supported, then this function
+ *   must be provided by board-specific logic in order to perform
+ *   initialization of the static C++ class instances.
+ *
+ *   This function should then be called in the application-specific
+ *   user_start logic in order to perform the C++ initialization.  NOTE
+ *   that no component of the core NuttX RTOS logic is involved; This
+ *   function defintion only provides the 'contract' between application
+ *   specific C++ code and platform-specific toolchain support
+ *
+ ***************************************************************************/
+
+void up_cxxinitialize(void)
+{
+  initializer_t *initp;
+
+  cxxdbg("_sinit: %p _einit: %p _stext: %p _etext: %p\n",
+         &_sinit, &_einit, &_stext, &_etext);
+
+  /* Visit each entry in the initialzation table */
+
+  for (initp = &_sinit; initp != &_einit; initp++)
+    {
+      initializer_t initializer = *initp;
+      cxxdbg("initp: %p initializer: %p\n", initp, initializer);
+
+      /* Make sure that the address is non-NULL and lies in the text region
+       * defined by the linker script.  Some toolchains may put NULL values
+       * or counts in the initialization table
+       */
+
+      if ((void*)initializer > (void*)&_stext && (void*)initializer < (void*)&_etext)
+        {
+          cxxdbg("Calling %p\n", initializer);
+          initializer();
+        }
+    }
+}
+
+#endif /* CONFIG_HAVE_CXX && CONFIG_HAVE_CXXINITIALIZE */