Initial Revision

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@148 42af7a65-404d-4744-a932-0658087f49c3

17 files changed, 1060 insertions, 0 deletions

diff --git a/nuttx/configs/c5471evm/src/Makefile b/nuttx/configs/c5471evm/src/Makefile
new file mode 100644
index 000000000..177328576
--- /dev/null
+++ b/nuttx/configs/c5471evm/src/Makefile
@@ -0,0 +1,78 @@
+############################################################
+# Makefile
+#
+#   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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 Gregory Nutt 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
+
+MKDEP 		= $(TOPDIR)/tools/mkdeps.sh
+CFLAGS		+= -I$(TOPDIR)/sched
+
+ASRCS		= 
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+CSRCS		= up_leds.c
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+CFLAGS		+= -I $(TOPDIR)/arch/$(CONFIG_ARCH)/src
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(CC) -c $(CFLAGS) -D__ASSEMBLY__ $< -o $@
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(CC) -c $(CFLAGS) $< -o $@
+
+libboard$(LIBEXT): $(OBJS)
+	( for obj in $(OBJS) ; do \
+		$(AR) $@ $${obj} || \
+			{ echo "$(AR) $@ $obj FAILED!" ; exit 1 ; } ; \
+	done ; )
+
+.depend: Makefile $(SRCS)
+	$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	touch $@
+
+depend: .depend
+
+clean:
+	rm -f libboard$(LIBEXT) *~
+	if [ ! -z "$(OBJEXT)" ]; then rm -f *$(OBJEXT); fi
+
+distclean: clean
+	rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/nuttx/configs/c5471evm/src/README.txt b/nuttx/configs/c5471evm/src/README.txt
new file mode 100644
index 000000000..40a798d35
--- /dev/null
+++ b/nuttx/configs/c5471evm/src/README.txt
@@ -0,0 +1,2 @@
+This directory contains drivers unique to the Spectrum Digital C5471 EVM.
+
diff --git a/nuttx/configs/c5471evm/src/up_leds.c b/nuttx/configs/c5471evm/src/up_leds.c
new file mode 100644
index 000000000..59ba2464b
--- /dev/null
+++ b/nuttx/configs/c5471evm/src/up_leds.c
@@ -0,0 +1,107 @@
+/************************************************************
+ * up_leds.c
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 Gregory Nutt 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 "up_internal.h"
+
+/************************************************************
+ * Definitions
+ ************************************************************/
+
+#define CS2  *(volatile uint32*)0xffff2e08
+#define LEDS *(volatile uint32*)0x01000000
+
+/************************************************************
+ * Private Data
+ ************************************************************/
+
+static uint32 g_ledstate;
+
+/************************************************************
+ * Private Functions
+ ************************************************************/
+
+/************************************************************
+ * Public Funtions
+ ************************************************************/
+
+/************************************************************
+ * Name: up_ledinit
+ ************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void up_ledinit(void)
+{
+  /* Enable access to LEDs */
+
+  CS2 = 0x000013db;
+
+  /* Turn LED 1-7 off; turn LED 0 on */
+
+  g_ledstate = 0x000000fe;
+  LEDS       = g_ledstate;
+}
+
+/************************************************************
+ * Name: up_ledon
+ ************************************************************/
+
+void up_ledon(int led)
+{
+  if (led < 8)
+    {
+      g_ledstate &= ~(1 << led);
+      LEDS        = g_ledstate;
+    }
+}
+
+/************************************************************
+ * Name: up_ledoff
+ ************************************************************/
+
+void up_ledoff(int led)
+{
+  if (led < 8)
+    {
+      g_ledstate |= (1 << led);
+      LEDS        = g_ledstate;
+    }
+}
+#endif /* CONFIG_ARCH_LEDS */
diff --git a/nuttx/configs/m68332evb/src/Make.defs b/nuttx/configs/m68332evb/src/Make.defs
new file mode 100644
index 000000000..2dc2d5b2b
--- /dev/null
+++ b/nuttx/configs/m68332evb/src/Make.defs
@@ -0,0 +1,71 @@
+############################################################
+# Make.defs
+#
+#   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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 Gregory Nutt 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
+
+ifeq ("${CONFIG_DEBUG}","y")
+  ARCHOPTIMIZATION	= -g
+else
+  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce \
+			  -fomit-frame-pointer
+endif
+
+ARCHCPUFLAGS		= -m68332 -mcpu32
+ARCHPICFLAGS		= -pic
+ARCHWARNINGS		= -Wall -Wstrict-prototypes -Wshadow
+ARCHDEFINES		=
+ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
+ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_BOARD)/ld.script
+
+CROSSDEV		= m68k-elf-
+CC			= $(CROSSDEV)gcc
+LD			= $(CROSSDEV)ld
+AR			= $(CROSSDEV)ar rcs
+NM			= $(CROSSDEV)nm
+OBJCOPY			= $(CROSSDEV)objcopy
+OBJDUMP			= $(CROSSDEV)objdump
+
+CFLAGS			= $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
+			  $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) -pipe
+
+OBJEXT			= .o
+LIBEXT			= .a
+EXEEXT			=
+
+ifeq ("${CONFIG_DEBUG}","y")
+  LDFLAGS		+= -g
+endif
+
+
diff --git a/nuttx/configs/m68332evb/src/defconfig b/nuttx/configs/m68332evb/src/defconfig
new file mode 100644
index 000000000..c63dc6aa2
--- /dev/null
+++ b/nuttx/configs/m68332evb/src/defconfig
@@ -0,0 +1,252 @@
+############################################################
+# defconfig
+#
+#   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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 Gregory Nutt 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.
+#
+############################################################
+#
+# architecture selection
+#
+# CONFIG_ARCH - identifies the arch subdirectory and, hence, the
+#   processor architecture.
+# CONFIG_ARCH_name - for use in C code.  This identifies the
+#   particular chip or SoC that the architecture is implemented
+#   in.
+# CONFIG_BOARD - identifies the configs subdirectory and, hence,
+#   the board that supports the particular chip or SoC.
+# CONFIG_BOARD_name - for use in C code
+# CONFIG_DRAM_SIZE - Describes the installed DRAM.
+# CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
+#
+CONFIG_ARCH=m68332evb
+CONFIG_ARCH_M68332=y
+CONFIG_ARCH_M68332EVB=y
+CONFIG_BOARD=m68332evb
+CONFIG_BOARD_M68332EVB=y
+CONFIG_DRAM_SIZE=0x003000
+CONFIG_DRAM_NUTTXENTRY=0x003000
+CONFIG_ARCH_STACKDUMP=y
+
+#
+# DM320 specific device driver settings
+#
+# CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the
+#   console and ttys0 (default is the UART0).
+# CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received.
+#   This specific the size of the receive buffer
+# CONFIG_UARTn_TXBUFSIZE - Characters are buffered before
+#   being sent.  This specific the size of the transmit buffer
+# CONFIG_UARTn_BAUD - The configure BAUD of the UART.  Must be
+# CONFIG_UARTn_BITS - The number of bits.  Must be either 7 or 8.
+# CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
+# CONFIG_UARTn_2STOP - Two stop bits
+#
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_UART1_SERIAL_CONSOLE=n
+CONFIG_UART0_TXBUFSIZE=256
+CONFIG_UART1_TXBUFSIZE=256
+CONFIG_UART0_RXBUFSIZE=256
+CONFIG_UART1_RXBUFSIZE=256
+CONFIG_UART0_BAUD=115200
+CONFIG_UART1_BAUD=115200
+CONFIG_UART0_BITS=8
+CONFIG_UART1_BITS=8
+CONFIG_UART0_PARITY=0
+CONFIG_UART1_PARITY=0
+CONFIG_UART0_2STOP=0
+CONFIG_UART1_2STOP=0
+
+#
+# General OS setup
+#
+# CONFIG_EXAMPLE - identifies the subdirectory in examples
+#   that will be used in the build
+# CONFIG_DEBUG - enables built-in debug options
+# CONFIG_DEBUG_VERBOSE - enables verbose debug output
+# CONFIG_MM_REGIONS - If the architecture includes multiple
+#   regions of memory to allocate from, this specifies the
+#   number of memory regions that the memory manager must
+#   handle and enables the API mm_addregion(start, end);
+# CONFIG_HAVE_LOWPUTC - architecture supports low-level, boot
+#   time console output
+# CONFIG_RR_INTERVAL - The round robin timeslice will be set
+#   this number of milliseconds;  Round robin scheduling can
+#   be disabled by setting this value to zero.
+# CONFIG_SCHED_INSTRUMENTATION - enables instrumentation in 
+#   scheduler to monitor system performance
+# CONFIG_TASK_NAME_SIZE - Spcifies that maximum size of a
+#   task name to save in the TCB.  Useful if scheduler
+#   instrumentation is selected.  Set to zero to disable.
+# CONFIG_START_YEAR, CONFIG_START_MONTH, CONFIG_START_DAY -
+#   Used to initialize the internal time logic.
+# CONFIG_JULIAN_TIME - Enables Julian time conversions
+# CONFIG_DEV_CONSOLE - Set if architecture-specific logic
+#   provides /dev/console.  Enables stdout, stderr, stdin.
+#
+CONFIG_EXAMPLE=ostest
+CONFIG_DEBUG=n
+CONFIG_DEBUG_VERBOSE=n
+CONFIG_MM_REGIONS=1
+CONFIG_ARCH_LOWPUTC=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_INSTRUMENTATION=n
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_START_YEAR=2007
+CONFIG_START_MONTH=2
+CONFIG_START_DAY=13
+CONFIG_JULIAN_TIME=n
+CONFIG_DEV_CONSOLE=y
+
+#
+# The following can be used to disable categories of
+# APIs supported by the OS.  If the compiler supports
+# weak functions, then it should not be necessary to
+# disable functions unless you want to restrict usage
+# of those APIs.
+#
+# There are certain dependency relationships in these
+# features.
+#
+# o mq_notify logic depends on signals to awaken tasks
+#   waiting for queues to become full or empty.
+# o pthread_condtimedwait() depends on signals to wake
+#   up waiting tasks.
+#
+CONFIG_DISABLE_CLOCK=n
+CONFIG_DISABLE_POSIX_TIMERS=n
+CONFIG_DISABLE_PTHREAD=n
+CONFIG_DISABLE_SIGNALS=n
+CONFIG_DISABLE_MQUEUE=n
+
+#
+# Misc libc settings
+#
+# CONFIG_NOPRINTF_FIELDWIDTH - sprintf-related logic is a
+#   little smaller if we do not support fieldwidthes
+#
+CONFIG_NOPRINTF_FIELDWIDTH=n
+
+#
+# Allow for architecture optimized implementations
+#
+# The architecture can provide optimized versions of the
+# following to improve sysem performance
+#
+CONFIG_ARCH_MEMCPY=n
+CONFIG_ARCH_MEMCMP=n
+CONFIG_ARCH_MEMMOVE=n
+CONFIG_ARCH_MEMSET=n
+CONFIG_ARCH_STRCMP=n
+CONFIG_ARCH_STRCPY=n
+CONFIG_ARCH_STRNCPY=n
+CONFIG_ARCH_STRLEN=n
+CONFIG_ARCH_BZERO=n
+CONFIG_ARCH_KMALLOC=n
+CONFIG_ARCH_KZMALLOC=n
+CONFIG_ARCH_KFREE=n
+
+#
+# General build options
+#
+# CONFIG_RRLOAD_BINARY - make the rrload binary format used with
+#   BSPs from www.ridgerun.com
+#
+CONFIG_RRLOAD_BINARY=n
+
+#
+# Sizes of configurable things (0 disables)
+#
+# CONFIG_MAX_TASKS - The maximum number of simultaneously
+#   active tasks.  This value must be a power of two.
+# CONFIG_MAX_TASK_ARGS - This controls the maximum number of
+#   of parameters that a task may receive (i.e., maxmum value
+#   of 'argc')
+# CONFIG_NPTHREAD_KEYS - The number of items of thread-
+#   specific data that can be retained
+# CONFIG_NFILE_DESCRIPTORS - The maximum number of file
+#   descriptors (one for each open)
+# CONFIG_NFILE_STREAMS - The maximum number of streams that
+#   can be fopen'ed
+# CONFIG_NAME_MAX - The maximum size of a file name.
+# CONFIG_STDIO_BUFFER_SIZE - Size of the buffer to allocate
+#   on fopen. (Only if CONFIG_NFILE_STREAMS > 0)
+# CONFIG_NUNGET_CHARS - Number of characters that can be
+#   buffered by ungetc() (Only if CONFIG_NFILE_STREAMS > 0)
+# CONFIG_PREALLOC_MQ_MSGS - The number of pre-allocated message
+#   structures.  The system manages a pool of preallocated
+#   message structures to minimize dynamic allocations
+# CONFIG_MQ_MAXMSGSIZE - Message structures are allocated with
+#   a fixed payload size given by this settin (does not include
+#   other message structure overhead.
+# CONFIG_MAX_WDOGPARMS - Maximum number of parameters that
+#   can be passed to a watchdog handler
+# CONFIG_PREALLOC_WDOGS - The number of pre-allocated watchdog
+#   structures.  The system manages a pool of preallocated
+#   watchdog structures to minimize dynamic allocations
+# CONFIG_PREALLOC_TIMERS - The number of pre-allocated POSIX
+#   timer structures.  The system manages a pool of preallocated
+#   timer structures to minimize dynamic allocations.  Set to
+#   zero for all dynamic allocations.
+#
+CONFIG_MAX_TASKS=64
+CONFIG_MAX_TASK_ARGS=4
+CONFIG_NPTHREAD_KEYS=4
+CONFIG_NFILE_DESCRIPTORS=32
+CONFIG_NFILE_STREAMS=16
+CONFIG_NAME_MAX=32
+CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_NUNGET_CHARS=2
+CONFIG_PREALLOC_MQ_MSGS=32
+CONFIG_MQ_MAXMSGSIZE=32
+CONFIG_MAX_WDOGPARMS=4
+CONFIG_PREALLOC_WDOGS=32
+CONFIG_PREALLOC_TIMERS=8
+
+#
+# Stack and heap information
+#
+# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
+#   operation from FLASH.
+# CONFIG_CUSTOM_STACK - The up_ implementation will handle
+#   all stack operations outside of the nuttx model.
+# CONFIG_PROC_STACK_SIZE - The size of the initial stack
+# CONFIG_PTHREAD_STACK_MIN - Minimum pthread stack size
+# CONFIG_PTHREAD_STACK_DEFAULT - Default pthread stack size
+# CONFIG_HEAP_BASE - The beginning of the heap
+# CONFIG_HEAP_SIZE - The size of the heap
+#
+CONFIG_BOOT_FROM_FLASH=n
+CONFIG_CUSTOM_STACK=n
+CONFIG_PROC_STACK_SIZE=4096
+CONFIG_PTHREAD_STACK_MIN=256
+CONFIG_PTHREAD_STACK_DEFAULT=4096
+CONFIG_HEAP_BASE=
+CONFIG_HEAP_SIZE=
diff --git a/nuttx/configs/m68332evb/src/doc/m68k-defconfig b/nuttx/configs/m68332evb/src/doc/m68k-defconfig
new file mode 100644
index 000000000..cbe3c11cd
--- /dev/null
+++ b/nuttx/configs/m68332evb/src/doc/m68k-defconfig
@@ -0,0 +1,111 @@
+#
+# Automatically generated make config: don't edit
+#
+BR2_HAVE_DOT_CONFIG=y
+# BR2_alpha is not set
+# BR2_arm is not set
+# BR2_armeb is not set
+# BR2_avr32 is not set
+# BR2_cris is not set
+# BR2_i386 is not set
+BR2_m68k=y
+# BR2_mips is not set
+# BR2_mipsel is not set
+# BR2_nios2 is not set
+# BR2_powerpc is not set
+# BR2_sh is not set
+# BR2_sh64 is not set
+# BR2_sparc is not set
+# BR2_x86_64 is not set
+BR2_ARCH="m68k"
+BR2_ENDIAN="BIG"
+
+#
+# Build options
+#
+BR2_WGET="wget --passive-ftp"
+BR2_SVN="svn co"
+BR2_ZCAT="zcat"
+BR2_BZCAT="bzcat"
+BR2_TAR_OPTIONS=""
+BR2_DL_DIR="$(BASE_DIR)/../archives"
+BR2_SOURCEFORGE_MIRROR="easynews"
+BR2_STAGING_DIR="$(BUILD_DIR)/staging_dir"
+BR2_NUTTX_DIR="$(TOPDIR)/../nuttx"
+BR2_TOPDIR_PREFIX=""
+BR2_TOPDIR_SUFFIX=""
+BR2_GNU_BUILD_SUFFIX="m68k-elf"
+BR2_GNU_TARGET_SUFFIX="elf"
+# BR2_PREFER_IMA is not set
+# BR2_DEPRECATED is not set
+
+#
+# Toolchain Options
+#
+
+#
+# Binutils Options
+#
+# BR2_BINUTILS_VERSION_2_14_90_0_8 is not set
+# BR2_BINUTILS_VERSION_2_15 is not set
+# BR2_BINUTILS_VERSION_2_15_94_0_2_2 is not set
+# BR2_BINUTILS_VERSION_2_16_1 is not set
+# BR2_BINUTILS_VERSION_2_16_90_0_3 is not set
+# BR2_BINUTILS_VERSION_2_16_91_0_5 is not set
+# BR2_BINUTILS_VERSION_2_16_91_0_6 is not set
+# BR2_BINUTILS_VERSION_2_16_91_0_7 is not set
+BR2_BINUTILS_VERSION_2_17=y
+# BR2_BINUTILS_VERSION_2_17_50_0_2 is not set
+# BR2_BINUTILS_VERSION_2_17_50_0_3 is not set
+# BR2_BINUTILS_VERSION_2_17_50_0_4 is not set
+# BR2_BINUTILS_VERSION_2_17_50_0_5 is not set
+# BR2_BINUTILS_VERSION_2_17_50_0_6 is not set
+# BR2_BINUTILS_VERSION_2_17_50_0_7 is not set
+# BR2_BINUTILS_VERSION_2_17_50_0_8 is not set
+# BR2_BINUTILS_VERSION_2_17_50_0_9 is not set
+# BR2_BINUTILS_VERSION_2_17_50_0_10 is not set
+BR2_BINUTILS_VERSION="2.17"
+BR2_EXTRA_BINUTILS_CONFIG_OPTIONS=""
+
+#
+# Gcc Options
+#
+# BR2_GCC_VERSION_3_3_5 is not set
+# BR2_GCC_VERSION_3_3_6 is not set
+# BR2_GCC_VERSION_3_4_2 is not set
+# BR2_GCC_VERSION_3_4_3 is not set
+# BR2_GCC_VERSION_3_4_4 is not set
+# BR2_GCC_VERSION_3_4_5 is not set
+BR2_GCC_VERSION_3_4_6=y
+# BR2_GCC_VERSION_4_0_0 is not set
+# BR2_GCC_VERSION_4_0_1 is not set
+# BR2_GCC_VERSION_4_0_2 is not set
+# BR2_GCC_VERSION_4_0_3 is not set
+# BR2_GCC_VERSION_4_0_4 is not set
+# BR2_GCC_VERSION_4_1_0 is not set
+# BR2_GCC_VERSION_4_1_1 is not set
+# BR2_GCC_VERSION_4_1_2 is not set
+# BR2_GCC_VERSION_4_2 is not set
+# BR2_GCC_IS_SNAP is not set
+BR2_GCC_VERSION="3.4.6"
+# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
+BR2_EXTRA_GCC_CONFIG_OPTIONS=""
+# BR2_INSTALL_LIBSTDCPP is not set
+# BR2_INSTALL_OBJC is not set
+# BR2_INSTALL_FORTRAN is not set
+
+#
+# Gdb Options
+#
+# BR2_PACKAGE_GDB is not set
+# BR2_PACKAGE_GDB_SERVER is not set
+# BR2_PACKAGE_GDB_HOST is not set
+
+#
+# Common Toolchain Options
+#
+# BR2_PACKAGE_SSTRIP_TARGET is not set
+# BR2_PACKAGE_SSTRIP_HOST is not set
+# BR2_ENABLE_MULTILIB is not set
+BR2_LARGEFILE=y
+BR2_TARGET_OPTIMIZATION="-Os -pipe"
diff --git a/nuttx/configs/m68332evb/src/include/README.txt b/nuttx/configs/m68332evb/src/include/README.txt
new file mode 100644
index 000000000..507354711
--- /dev/null
+++ b/nuttx/configs/m68332evb/src/include/README.txt
@@ -0,0 +1 @@
+This directory contains header files unique to the M68322EVB.
diff --git a/nuttx/configs/m68332evb/src/ld.script b/nuttx/configs/m68332evb/src/ld.script
new file mode 100644
index 000000000..0054ff1d1
--- /dev/null
+++ b/nuttx/configs/m68332evb/src/ld.script
@@ -0,0 +1,84 @@
+/************************************************************
+ * ld.script
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 Gregory Nutt 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.
+ *
+ ************************************************************/
+
+OUTPUT_ARCH(arm)
+ENTRY(_stext)
+SECTIONS
+{
+	/* The OS entry point is here */
+
+	. = 0x003000;
+	.text : {
+		_stext = ABSOLUTE(.);
+		*(.text)
+		*(.fixup)
+		*(.gnu.warning)
+		*(.rodata)
+		*(.glue_7)
+		*(.glue_7t)
+		*(.got)			/* Global offset table		*/
+		_etext = ABSOLUTE(.);
+	}
+
+	_eronly = ABSOLUTE(.);		/* See below                    */
+	. = ALIGN(4096);
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	}
+
+	.bss : {			/* BSS				*/
+		_sbss = ABSOLUTE(.);
+		*(.bss)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	}
+					/* Stabs debugging sections.	*/
+	.stab 0 : { *(.stab) }
+	.stabstr 0 : { *(.stabstr) }
+	.stab.excl 0 : { *(.stab.excl) }
+	.stab.exclstr 0 : { *(.stab.exclstr) }
+	.stab.index 0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment 0 : { *(.comment) }
+	.debug_abbrev 0 : { *(.debug_abbrev) }
+	.debug_info 0 : { *(.debug_info) }
+	.debug_line 0 : { *(.debug_line) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	.debug_aranges 0 : { *(.debug_aranges) }
+}
diff --git a/nuttx/configs/m68332evb/src/setenv.sh b/nuttx/configs/m68332evb/src/setenv.sh
new file mode 100755
index 000000000..506a6c624
--- /dev/null
+++ b/nuttx/configs/m68332evb/src/setenv.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+# setenv.sh
+#
+#   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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 Gregory Nutt 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 [ "$(basename $0)" = "setenv" ] ; then
+  echo "You must source this script, not run it!" 1>&2
+  exit 1
+fi
+
+if [ -z ${PATH_ORIG} ]; then export PATH_ORIG=${PATH}; fi
+
+WD=`pwd`
+export BUILDROOT_BIN=${WD}/../buildroot/build_m68k/staging_dir/bin
+export PATH=${BUILDROOT_BIN}:/sbin:/usr/sbin:${PATH_ORIG}
+
+echo "PATH : ${PATH}"
diff --git a/nuttx/configs/m68332evb/src/src/Makefile b/nuttx/configs/m68332evb/src/src/Makefile
new file mode 100644
index 000000000..5f2bd8083
--- /dev/null
+++ b/nuttx/configs/m68332evb/src/src/Makefile
@@ -0,0 +1,76 @@
+############################################################
+# Makefile
+#
+#   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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 Gregory Nutt 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
+
+MKDEP 		= $(TOPDIR)/tools/mkdeps.sh
+CFLAGS		+= -I$(TOPDIR)/sched
+
+ASRCS		= 
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+CSRCS		= 
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(CC) -c $(CFLAGS) -D__ASSEMBLY__ $< -o $@
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(CC) -c $(CFLAGS) $< -o $@
+
+libboard$(LIBEXT): $(OBJS)
+	( for obj in $(OBJS) ; do \
+		$(AR) $@ $${obj} || \
+			{ echo "$(AR) $@ $obj FAILED!" ; exit 1 ; } ; \
+	done ; )
+
+.depend: Makefile $(SRCS)
+	$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	touch $@
+
+depend: .depend
+
+clean:
+	rm -f libboard$(LIBEXT) *~
+	if [ ! -z "$(OBJEXT)" ]; then rm -f *$(OBJEXT); fi
+
+distclean: clean
+	rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/nuttx/configs/m68332evb/src/src/README.txt b/nuttx/configs/m68332evb/src/src/README.txt
new file mode 100644
index 000000000..983bf5e99
--- /dev/null
+++ b/nuttx/configs/m68332evb/src/src/README.txt
@@ -0,0 +1 @@
+This directory contains drivers unique to the m68332evb.
diff --git a/nuttx/configs/ntosd-dm320/src/Makefile b/nuttx/configs/ntosd-dm320/src/Makefile
new file mode 100644
index 000000000..5f2bd8083
--- /dev/null
+++ b/nuttx/configs/ntosd-dm320/src/Makefile
@@ -0,0 +1,76 @@
+############################################################
+# Makefile
+#
+#   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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 Gregory Nutt 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
+
+MKDEP 		= $(TOPDIR)/tools/mkdeps.sh
+CFLAGS		+= -I$(TOPDIR)/sched
+
+ASRCS		= 
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+CSRCS		= 
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(CC) -c $(CFLAGS) -D__ASSEMBLY__ $< -o $@
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(CC) -c $(CFLAGS) $< -o $@
+
+libboard$(LIBEXT): $(OBJS)
+	( for obj in $(OBJS) ; do \
+		$(AR) $@ $${obj} || \
+			{ echo "$(AR) $@ $obj FAILED!" ; exit 1 ; } ; \
+	done ; )
+
+.depend: Makefile $(SRCS)
+	$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	touch $@
+
+depend: .depend
+
+clean:
+	rm -f libboard$(LIBEXT) *~
+	if [ ! -z "$(OBJEXT)" ]; then rm -f *$(OBJEXT); fi
+
+distclean: clean
+	rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/nuttx/configs/ntosd-dm320/src/README.txt b/nuttx/configs/ntosd-dm320/src/README.txt
new file mode 100644
index 000000000..280539eb4
--- /dev/null
+++ b/nuttx/configs/ntosd-dm320/src/README.txt
@@ -0,0 +1 @@
+This directory contains drivers unique to the Neuros OSD.
diff --git a/nuttx/configs/pjrc-8051/src/Makefile b/nuttx/configs/pjrc-8051/src/Makefile
new file mode 100644
index 000000000..5f2bd8083
--- /dev/null
+++ b/nuttx/configs/pjrc-8051/src/Makefile
@@ -0,0 +1,76 @@
+############################################################
+# Makefile
+#
+#   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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 Gregory Nutt 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
+
+MKDEP 		= $(TOPDIR)/tools/mkdeps.sh
+CFLAGS		+= -I$(TOPDIR)/sched
+
+ASRCS		= 
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+CSRCS		= 
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(CC) -c $(CFLAGS) -D__ASSEMBLY__ $< -o $@
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(CC) -c $(CFLAGS) $< -o $@
+
+libboard$(LIBEXT): $(OBJS)
+	( for obj in $(OBJS) ; do \
+		$(AR) $@ $${obj} || \
+			{ echo "$(AR) $@ $obj FAILED!" ; exit 1 ; } ; \
+	done ; )
+
+.depend: Makefile $(SRCS)
+	$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	touch $@
+
+depend: .depend
+
+clean:
+	rm -f libboard$(LIBEXT) *~
+	if [ ! -z "$(OBJEXT)" ]; then rm -f *$(OBJEXT); fi
+
+distclean: clean
+	rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/nuttx/configs/pjrc-8051/src/README.txt b/nuttx/configs/pjrc-8051/src/README.txt
new file mode 100644
index 000000000..74f820427
--- /dev/null
+++ b/nuttx/configs/pjrc-8051/src/README.txt
@@ -0,0 +1 @@
+This directory contains drivers unique to the PJRC 87C52 board.
diff --git a/nuttx/configs/sim/src/Makefile b/nuttx/configs/sim/src/Makefile
new file mode 100644
index 000000000..5f2bd8083
--- /dev/null
+++ b/nuttx/configs/sim/src/Makefile
@@ -0,0 +1,76 @@
+############################################################
+# Makefile
+#
+#   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# 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 Gregory Nutt 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
+
+MKDEP 		= $(TOPDIR)/tools/mkdeps.sh
+CFLAGS		+= -I$(TOPDIR)/sched
+
+ASRCS		= 
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+CSRCS		= 
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(CC) -c $(CFLAGS) -D__ASSEMBLY__ $< -o $@
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(CC) -c $(CFLAGS) $< -o $@
+
+libboard$(LIBEXT): $(OBJS)
+	( for obj in $(OBJS) ; do \
+		$(AR) $@ $${obj} || \
+			{ echo "$(AR) $@ $obj FAILED!" ; exit 1 ; } ; \
+	done ; )
+
+.depend: Makefile $(SRCS)
+	$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	touch $@
+
+depend: .depend
+
+clean:
+	rm -f libboard$(LIBEXT) *~
+	if [ ! -z "$(OBJEXT)" ]; then rm -f *$(OBJEXT); fi
+
+distclean: clean
+	rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/nuttx/configs/sim/src/README.txt b/nuttx/configs/sim/src/README.txt
new file mode 100644
index 000000000..28315582a
--- /dev/null
+++ b/nuttx/configs/sim/src/README.txt
@@ -0,0 +1 @@
+This directory contains drivers unique to the Linux user-mode platform.