Merged in alinjerpelea/nuttx (pull request #963)

Move boards to boards folder

* boards: rename configs folder to boards

    This is the proposed layout after the change:

    boards: - folder containing board folders
            <board>: - name of each board
                    drivers: - extra drivers specific for platform
                    include: - header files for the boars
                    scripts: - extra scripts specific for platform
                        src: - board specific code
                      tools: - extra tools specific for platform
                    <config>: - board specific configuration(s)

    Note:
    <xxx> names are dependent on platform

    This is a logical change to aim to the arch layout but this is a
    huge change it should be done in several steps to lower the risk.

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Kconfig: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Makefile: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Makefile.*: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Make.defs: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .sh: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .mk: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .c & .h: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .bat: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>

Kconfig

@@ -1654,7 +1654,7 @@ source "arch/Kconfig"
 endmenu
 
 menu "Board Selection"
-source "configs/Kconfig"
+source "boards/Kconfig"
 endmenu
 
 menu "RTOS Features"

arch/arm/Kconfig

@@ -345,7 +345,7 @@ config ARCH_CHIP_STM32H7
 		STMicro STM32H7 architectures (ARM Cortex-M7).
 
 		BEWARE: This is a work-in-progress and not yet ready for general
-		usage.  See configs/nucleo-h743zi/README.txt for the current state
+		usage.  See boards/nucleo-h743zi/README.txt for the current state
 		of the port.
 
 config ARCH_CHIP_STM32L4

arch/arm/src/lpc43xx/spifi/src/Make.defs

@@ -1,5 +1,5 @@
 ############################################################################
-# configs/lpc4330-xplorer/src/Makefile
+# boards/lpc4330-xplorer/src/Makefile
 #
 #   Copyright (C) 2015 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>

arch/arm/src/stm32/Kconfig

@@ -8609,7 +8609,7 @@ config STM32_SERIAL_DISABLE_REORDERING
 		can, however, have the side-effect that all port mappings
 		(hardware USART1 -> /dev/ttyS0) change if the console is moved to another
 		UART. This is in particular relevant if a project uses the USB console
-		in some configs and a serial console in other configs, but does not
+		in some boards and a serial console in other boards, but does not
 		want the side effect of having all serial port names change when just
 		the console is moved from serial to USB.
 

arch/arm/src/stm32f0l0g0/Kconfig

@@ -1779,7 +1779,7 @@ config STM32F0L0G0_SERIAL_DISABLE_REORDERING
 		can, however, have the side-effect that all port mappings
 		(hardware USART1 -> /dev/ttyS0) change if the console is moved to another
 		UART. This is in particular relevant if a project uses the USB console
-		in some configs and a serial console in other configs, but does not
+		in some boards and a serial console in other boards, but does not
 		want the side effect of having all serial port names change when just
 		the console is moved from serial to USB.
 

arch/arm/src/stm32f7/Kconfig

@@ -1935,7 +1935,7 @@ config STM32F7_SERIAL_DISABLE_REORDERING
 		can, however, have the side-effect that all port mappings
 		(hardware USART1 -> /dev/ttyS0) change if the console is moved to another
 		UART. This is in particular relevant if a project uses the USB console
-		in some configs and a serial console in other configs, but does not
+		in some boards and a serial console in other boards, but does not
 		want the side effect of having all serial port names change when just
 		the console is moved from serial to USB.
 

arch/arm/src/stm32h7/Kconfig

@@ -828,7 +828,7 @@ config STM32H7_SERIAL_DISABLE_REORDERING
 		can, however, have the side-effect that all port mappings
 		(hardware USART1 -> /dev/ttyS0) change if the console is moved to another
 		UART. This is in particular relevant if a project uses the USB console
-		in some configs and a serial console in other configs, but does not
+		in some boards and a serial console in other boards, but does not
 		want the side effect of having all serial port names change when just
 		the console is moved from serial to USB.
 

arch/arm/src/stm32l4/Kconfig

@@ -3990,7 +3990,7 @@ config STM32L4_SERIAL_DISABLE_REORDERING
 		can, however, have the side-effect that all port mappings
 		(hardware USART1 -> /dev/ttyS0) change if the console is moved to another
 		UART. This is in particular relevant if a project uses the USB console
-		in some configs and a serial console in other configs, but does not
+		in some boards and a serial console in other boards, but does not
 		want the side effect of having all serial port names change when just
 		the console is moved from serial to USB.
 

arch/sim/Kconfig

@@ -123,7 +123,7 @@ config SIM_NET_HOST_ROUTE
 	---help---
 		Add a host route for the simulation that points to the created tap device.  The
 		simulation will not be able to access the public network unless iptables is
-		configured to masquerade for it.  See configs/sim/NETWORK-LINUX.txt for more
+		configured to masquerade for it.  See boards/sim/NETWORK-LINUX.txt for more
 		information.
 
 config SIM_NET_BRIDGE
@@ -131,7 +131,7 @@ config SIM_NET_BRIDGE
 	 ---help---
 		Add the created tap device to the specified bridge.  You will need to manually
 		configure the bridge IP address (if any) and routes that point to the bridge.
-		See configs/sim/NETWORK-LINUX.txt for more information.
+		See boards/sim/NETWORK-LINUX.txt for more information.
 
 endchoice
 endif

arch/z80/src/z180/Kconfig

@@ -135,7 +135,7 @@ config ARCH_HAVEHEAD
 	default n
 	---help---
 		Use a board-specific version of the "head" file in the
-		configs/<board-name>/src directory
+		boards/<board-name>/src directory
 
 menu "Z180 Peripheral Support"
 

arch/z80/src/z80/Kconfig

@@ -50,6 +50,6 @@ config ARCH_HAVEHEAD
 	default n
 	---help---
 		Use a board-specific version of the "head" file in the
-		configs/<board-name>/src directory
+		boards/<board-name>/src directory
 
 endif

boards/Board.mk

@@ -1,5 +1,5 @@
 ############################################################################
-# configs/Board.mk
+# boards/Board.mk
 #
 #   Copyright (C) 2015 Gregory Nutt. All rights reserved.
 #   Copyright (C) 2015 Omni Hoverboards Inc. All rights reserved.

boards/Makefile

@@ -0,0 +1,139 @@
+############################################################################
+# boards/Makefile
+#
+#   Copyright (C) 2015-2016 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+# Determine if there is a Kconfig file for any custom board configuration
+
+ifeq ($(CONFIG_ARCH_BOARD_CUSTOM),y)
+  CUSTOM_DIR = $(patsubst "%",%,$(CONFIG_ARCH_BOARD_CUSTOM_DIR))
+  ifeq ($(CONFIG_ARCH_BOARD_CUSTOM_DIR_RELPATH),y)
+    CUSTOM_KPATH = $(TOPDIR)$(DELIM)$(CUSTOM_DIR)$(DELIM)Kconfig
+  else
+    CUSTOM_KPATH = $(CUSTOM_DIR)$(DELIM)Kconfig
+  endif
+  CUSTOM_KCONFIG = $(if $(wildcard $(CUSTOM_KPATH)),y,)
+else
+  CUSTOM_KCONFIG =
+endif
+
+ifeq ($(CUSTOM_KCONFIG),y)
+  BOARD_KCONFIG = $(CUSTOM_KPATH)
+else
+  BOARD_KCONFIG = $(TOPDIR)$(DELIM)boards$(DELIM)dummy$(DELIM)dummy_kconfig
+endif
+
+DUMMY_KCONFIG = $(TOPDIR)$(DELIM)boards$(DELIM)dummy$(DELIM)Kconfig
+
+# The board configuration should be installed in the arch/ directory
+
+BOARD_DIR = $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board
+BOARD_INSTALLED = $(if $(wildcard $(BOARD_DIR)$(DELIM)Makefile),y,)
+
+# Basic
+
+CONFIG_ASRCS =
+CONFIG_CSRCS = dummy.c
+CONFIG_CXXSRCS =
+
+# boardctl support
+
+ifeq ($(CONFIG_LIB_BOARDCTL),y)
+CONFIG_CSRCS += boardctl.c
+endif
+
+ASRCS = $(CONFIG_ASRCS)
+AOBJS = $(ASRCS:.S=$(OBJEXT))
+
+CSRCS = $(CONFIG_CSRCS)
+COBJS = $(CSRCS:.c=$(OBJEXT))
+
+CXXSRCS = $(CONFIG_CXXSRCS)
+CXXOBJS = $(CXXSRCS:.cxx=$(OBJEXT))
+
+SRCS = $(ASRCS) $(CSRCS) $(CXXSRCS)
+OBJS = $(AOBJS) $(COBJS) $(CXXOBJS)
+
+BIN = libboards$(LIBEXT)
+
+all: $(BIN)
+.PHONY: depend context clean_context clean distclean
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+$(CXXOBJS): %$(OBJEXT): %.cxx
+	$(call COMPILEXX, $<, $@)
+
+$(BIN): $(OBJS)
+	$(call ARCHIVE, $@, $(OBJS))
+
+.depend: Makefile $(SRCS)
+ifneq ($(SRCS),)
+	$(Q) $(MKDEP) --dep-path . "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
+endif
+ifneq ($(CXXSRCS),)
+	$(Q) $(MKDEP) --dep-path . "$(CXX)" -- $(CXXFLAGS) -- $(CXXSRCS) >>Make.dep
+endif
+	$(Q) touch $@
+
+depend: .depend
+
+$(DUMMY_KCONFIG): $(BOARD_KCONFIG)
+	$(call DELFILE, $(DUMMY_KCONFIG))
+	$(call COPYFILE, $(BOARD_KCONFIG), $(DUMMY_KCONFIG))
+
+dirlinks: $(DUMMY_KCONFIG)
+
+context: $(DUMMY_KCONFIG)
+ifeq ($(BOARD_INSTALLED),y)
+	$(Q) $(MAKE) -C $(BOARD_DIR) TOPDIR="$(TOPDIR)" context
+endif
+
+clean_context:
+	$(call DELFILE, $(DUMMY_KCONFIG))
+
+clean: clean_context
+	$(call DELFILE, $(BIN))
+	$(call CLEAN)
+
+distclean: clean
+	$(call DELFILE, Make.dep)
+	$(call DELFILE, .depend)
+
+-include Make.dep

boards/amber/include/board.h

@@ -0,0 +1,100 @@
+/****************************************************************************
+ * boards/amber/include/board.h
+ * include/arch/board/board.h
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_AMBER_INCLUDE_BOARD_H
+#define __BOARDS_AMBER_INCLUDE_BOARD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+
+/* Clocking *****************************************************************/
+/* Assume default CLKDIV8 fuse setting is overridden to CLKDIV1 */
+
+#define BOARD_XTAL_FREQ        14745600         /* 14.7456MHz crystal */
+#define BOARD_CPU_CLOCK        BOARD_XTAL_FREQ  /* F_CPU = 14.7456MHz */
+#define BOARD_TOSCK_CLOCK      32768            /* TOSC  = 32.768KHz */
+
+/* LED definitions **********************************************************/
+/* The Amber Web Server has a reset switch and four LEDs. The LEDs indicate
+ * the status of power, programming state, Ethernet link status and reset
+ * status (Active).  None are available for software use.
+ */
+
+#define LED_STARTED            0
+#define LED_HEAPALLOCATE       1
+#define LED_IRQSENABLED        2
+#define LED_STACKCREATED       3
+#define LED_INIRQ              4
+#define LED_SIGNAL             5
+#define LED_ASSERTION          6
+#define LED_PANIC              7
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_AMBER_INCLUDE_BOARD_H */

boards/amber/scripts/Make.defs

@@ -0,0 +1,100 @@
+############################################################################
+# boards/amber/scripts/Make.defs
+#
+#   Copyright (C) 2011-2012, 2017 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+include ${TOPDIR}/.config
+include ${TOPDIR}/tools/Config.mk
+include ${TOPDIR}/arch/avr/src/avr/Toolchain.defs
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  DIRLINK = $(TOPDIR)/tools/copydir.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mkwindeps.sh
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = $(ARCHINCLUDES) "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/boards/$(CONFIG_ARCH_BOARD)/scripts/amber.ld}"
+else
+  # Linux/Cygwin-native toolchain
+  MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
+  ARCHINCLUDES = -I. -isystem "$(TOPDIR)/include"
+  ARCHXXINCLUDES =  $(ARCHINCLUDES) -isystem "$(TOPDIR)/include/cxx"
+  ARCHSCRIPT = -T$(TOPDIR)/boards/$(CONFIG_ARCH_BOARD)/scripts/amber.ld
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+STRIP = $(CROSSDEV)strip --strip-unneeded
+AR = $(CROSSDEV)ar rcs
+NM = $(CROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g
+endif
+
+ifneq ($(CONFIG_DEBUG_NOOPT),y)
+  ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
+ARCHWARNINGSXX = -Wall -Wshadow -Wundef
+ARCHDEFINES =
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+ASMEXT = .S
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
+HOSTLDFLAGS =
+

boards/amber/src/Makefile

@@ -0,0 +1,45 @@
+############################################################################
+# boards/amber/src/Makefile
+#
+#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+ASRCS =
+CSRCS = atmega_boot.c
+
+ifeq ($(CONFIG_ARCH_LEDS),y)
+CSRCS += atmega_leds.c
+endif
+
+include $(TOPDIR)/boards/Board.mk

boards/amber/src/amber.h

@@ -1,5 +1,5 @@
 /****************************************************************************
- * configs/amber/src/amber.h
+ * boards/amber/src/amber.h
  *
  *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
@@ -33,8 +33,8 @@
  *
  ****************************************************************************/
 
-#ifndef __CONFIGS_AMBER_SRC_AMBER_H
-#define __CONFIGS_AMBER_SRC_AMBER_H
+#ifndef __BOARDS_AMBER_SRC_AMBER_H
+#define __BOARDS_AMBER_SRC_AMBER_H
 
 /****************************************************************************
  * Included Files
@@ -99,4 +99,4 @@ void atmega_led_initialize(void);
 #endif
 
 #endif /* __ASSEMBLY__ */
-#endif /* __CONFIGS_AMBER_SRC_AMBER_H */
+#endif /* __BOARDS_AMBER_SRC_AMBER_H */

boards/amber/src/atmega_boot.c

@@ -1,5 +1,5 @@
 /************************************************************************************
- * configs/amber/src/atmega_boot.c
+ * boards/amber/src/atmega_boot.c
  *
  *   Copyright (C) 2011, 2015 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>

boards/arduino-due/include/board.h

@@ -0,0 +1,227 @@
+/************************************************************************************
+ * boards/arduino-due/include/board.h
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __BOARDS_ARDUINO_DUE_INCLUDE_BOARD_H
+#define __BOARDS_ARDUINO_DUE_INCLUDE_BOARD_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#ifndef __ASSEMBLY__
+#  include <stdint.h>
+#  include <stdbool.h>
+#  ifdef CONFIG_SAM34_GPIO_IRQ
+#    include <arch/irq.h>
+#  endif
+#endif
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Clocking *************************************************************************/
+/* After power-on reset, the SAM3X device is running on a 4MHz internal RC.  These
+ * definitions will configure clocking
+ *
+ *   MAINOSC:  Frequency = 12MHz (crystal)
+ *   PLLA: PLL Divider = 1, Multiplier = 14 to generate PLLACK = 168MHz
+ *   Master Clock (MCK): Source = PLLACK, Prescalar = 1 to generate MCK = 84MHz
+ *   CPU clock: 84MHz
+ */
+
+#define BOARD_32KOSC_FREQUENCY     (32768)
+#define BOARD_SCLK_FREQUENCY       (BOARD_32KOSC_FREQUENCY)
+#define BOARD_MAINOSC_FREQUENCY    (12000000)  /* MAINOSC: 12MHz crystal on-board */
+
+/* Main oscillator register settings.
+ *
+ *   The start up time should be should be:
+ *   Start Up Time = 8 * MOSCXTST / SLCK = 56 Slow Clock Cycles.
+ */
+
+#define BOARD_CKGR_MOR_MOSCXTST    (62 << PMC_CKGR_MOR_MOSCXTST_SHIFT) /* Start-up Time */
+
+/* PLLA configuration.
+ *
+ *   Divider = 1
+ *   Multipler = 14
+ */
+
+#define BOARD_CKGR_PLLAR_MUL       (13 << PMC_CKGR_PLLAR_MUL_SHIFT)
+#define BOARD_CKGR_PLLAR_COUNT     (63 << PMC_CKGR_PLLAR_COUNT_SHIFT)
+#define BOARD_CKGR_PLLAR_DIV       PMC_CKGR_PLLAR_DIV_BYPASS
+
+/* PMC master clock register settings.
+ *
+ *  Source = PLLA
+ *  Divider = 2
+ */
+
+#define BOARD_PMC_MCKR_CSS         PMC_MCKR_CSS_PLLA
+#define BOARD_PMC_MCKR_PRES        PMC_MCKR_PRES_DIV2
+
+/* USB UTMI PLL start-up time */
+
+#define BOARD_CKGR_UCKR_UPLLCOUNT  (3 << PMC_CKGR_UCKR_UPLLCOUNT_SHIFT)
+
+/* Resulting frequencies */
+
+#define BOARD_PLLA_FREQUENCY       (168000000) /* PLLACK:  14 * 12Mhz / 1 */
+#define BOARD_MCK_FREQUENCY        (84000000)  /* MCK:     PLLACK / 2 */
+#define BOARD_CPU_FREQUENCY        (84000000)  /* CPU:     MCK */
+
+/* HSMCI clocking
+ *
+ * Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK)
+ * divided by (2*(CLKDIV+1)).
+ *
+ *   MCI_SPEED = MCCK / (2*(CLKDIV+1))
+ *   CLKDIV = MCCK / MCI_SPEED / 2 - 1
+ *
+ * Where CLKDIV has a range of 0-255.
+ */
+
+/* MCK = 84MHz, CLKDIV = 104, MCI_SPEED = 84MHz / 2 * (104+1) = 400 KHz */
+
+#define HSMCI_INIT_CLKDIV          (104 << HSMCI_MR_CLKDIV_SHIFT)
+
+/* MCK = 84MHz, CLKDIV = 2, MCI_SPEED = 84MHz / 2 * (2+1) = 14 MHz */
+
+#define HSMCI_MMCXFR_CLKDIV        (1 << HSMCI_MR_CLKDIV_SHIFT)
+
+/* MCK = 84MHz, CLKDIV = 1, MCI_SPEED = 84MHz / 2 * (1+1) = 21 MHz */
+
+#define HSMCI_SDXFR_CLKDIV         (1 << HSMCI_MR_CLKDIV_SHIFT)
+#define HSMCI_SDWIDEXFR_CLKDIV     HSMCI_SDXFR_CLKDIV
+
+/* FLASH wait states
+ *
+ * FWS MAX FREQUENCY
+ *     1.62V 1.8V
+ * --- ----- ------
+ *  0  17MHz 19MHz
+ *  1  45MHz 50MHz
+ *  2  58MHz 64MHz
+ *  3  70MHz 80MHz
+ *  4  78MHz 90MHz
+ */
+
+#define BOARD_FWS                  4
+
+/* LED definitions ******************************************************************/
+/*  There are three user-controllable LEDs on board the Arduino Due board:
+ *
+ *     LED              GPIO
+ *     ---------------- -----
+ *     L   Amber LED    PB27
+ *     TX  Yellow LED   PA21
+ *     RX  Yellow LED   PC30
+ *
+ * LED L is connected to ground and can be illuminated by driving the PB27
+ * output high. The TX and RX LEDs are pulled high and can be illuminated by
+ * driving the corresponding
+ * GPIO output to low.
+ */
+
+/* LED index values for use with board_userled() */
+
+#define BOARD_LED_L       0
+#define BOARD_LED_RX      1
+#define BOARD_LED_TX      2
+#define BOARD_NLEDS       3
+
+/* LED bits for use with board_userled_all() */
+
+#define BOARD_LED_L_BIT   (1 << BOARD_LED_L)
+#define BOARD_LED_RX_BIT  (1 << BOARD_LED_RX)
+#define BOARD_LED_TX_BIT  (1 << BOARD_LED_TX)
+
+/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
+ * defined.  In that case, the usage by the board port is defined in
+ * include/board.h and src/sam_leds.c. The LEDs are used to encode OS-related
+ * events as follows:
+ *
+ *  SYMBOL                MEANING                         LED STATE
+ *                                                         L         TX       RX
+ *  -----------------------  --------------------------  -------- -------- --------    */
+#define LED_STARTED       0  /* NuttX has been started     OFF      OFF      OFF       */
+#define LED_HEAPALLOCATE  0  /* Heap has been allocated    OFF      OFF      OFF       */
+#define LED_IRQSENABLED   0  /* Interrupts enabled         OFF      OFF      OFF       */
+#define LED_STACKCREATED  1  /* Idle stack created         ON       OFF      OFF       */
+#define LED_INIRQ         2  /* In an interrupt            N/C      GLOW     OFF       */
+#define LED_SIGNAL        2  /* In a signal handler        N/C      GLOW     OFF       */
+#define LED_ASSERTION     2  /* An assertion failed        N/C      GLOW     OFF       */
+#define LED_PANIC         3  /* The system has crashed     N/C      N/C      Blinking  */
+#define LED_PANIC         3  /* MCU is is sleep mode       ------ Not used --------    */
+
+/* Thus if LED L is statically on, NuttX has successfully booted and is,
+ * apparently, running normmally.  If LED RX is glowing, then NuttX is
+ * handling interrupts (and also signals and assertions).  If TX is flashing
+ * at approximately 2Hz, then a fatal error has been detected and the system
+ */
+
+/* Button definitions ***************************************************************/
+/*   There are no buttons on the Arduino Due board. */
+
+/* GPIO pin configurations **********************************************************/
+
+#if 1 /* #ifdef CONFIG_ARDUINO_DUE_REV3 works with REV2 as well */
+/* This port was performed on the Arduino Due Rev 2 board.  A NuttX user reported
+ * issues with the serial port on his Aduino Due Rev 3 board.  That problem was
+ * resolved as follows:
+ *
+ *  "... The issue was in my hardware. I found the difference between Arduino
+ *   Due shematics (revision R2) and actual PCB layout of my Arduino (revision
+ *   R3). On a schematics which I download from arduino.cc was shown that 2nd
+ *   pin of IC10 is connected to the ground, but on my Arduino the 2nd pin
+ *   of IC10 was connected to its 1st pin instead of ground and in my case
+ *   IC10 works in open-drain mode, but RX0 pin on SAM3x doesn't have pull-up
+ *   and thus TX signal from AtMega16U2 can't reach the SAM3x input pin, on
+ *   this pin always '0'.
+ *
+ *  "My solution is to enable internal pull-up in SAM3x. ...
+ *   Now shell console on UART0 (via USB programming connector) of Arduino Due
+ *   Due works as expected."
+ */
+
+#  undef  GPIO_UART0_RXD
+#  define GPIO_UART0_RXD  (GPIO_PERIPHA | GPIO_CFG_DEFAULT | GPIO_PORT_PIOA | \
+                           GPIO_PIN8 | GPIO_CFG_PULLUP)
+#endif
+
+#endif  /* __BOARDS_ARDUINO_DUE_INCLUDE_BOARD_H */

boards/arduino-due/scripts/Make.defs

@@ -0,0 +1,110 @@
+############################################################################
+# boards/arduino-due/scripts/Make.defs
+#
+#   Copyright (C) 2013, 2017 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+include ${TOPDIR}/.config
+include ${TOPDIR}/tools/Config.mk
+include ${TOPDIR}/arch/arm/src/armv7-m/Toolchain.defs
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  DIRLINK = $(TOPDIR)/tools/copydir.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mkwindeps.sh
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/boards/$(CONFIG_ARCH_BOARD)/scripts/arduino-due.ld}"
+else
+  # Linux/Cygwin-native toolchain
+  MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
+  ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT = -T$(TOPDIR)/boards/$(CONFIG_ARCH_BOARD)/scripts/arduino-due.ld
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+STRIP = $(CROSSDEV)strip --strip-unneeded
+AR = $(CROSSDEV)ar rcs
+NM = $(CROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
+ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g
+endif
+
+ifneq ($(CONFIG_DEBUG_NOOPT),y)
+  ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
+ARCHWARNINGSXX = -Wall -Wshadow -Wundef
+ARCHDEFINES =
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+ASMEXT = .S
+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 -Wundef -g -pipe
+HOSTLDFLAGS =

boards/arduino-due/src/Makefile

@@ -0,0 +1,68 @@
+############################################################################
+# boards/arduino-due/src/Makefile
+#
+#   Copyright (C) 2013, 2018 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+ASRCS =
+CSRCS = sam_boot.c sam_bringup.c
+
+ifeq ($(CONFIG_ARCH_LEDS),y)
+CSRCS += sam_autoleds.c
+else
+CSRCS += sam_userleds.c
+endif
+
+ifeq ($(CONFIG_ARDUINO_ITHEAD_TFT),y)
+
+ifeq ($(CONFIG_SPI_BITBANG),y)
+ifeq ($(CONFIG_MMCSD_SPI),y)
+CSRCS += sam_mmcsd.c
+endif
+
+ifeq ($(CONFIG_INPUT_ADS7843E),y)
+CSRCS += sam_touchscreen.c
+endif
+endif
+
+ifeq ($(CONFIG_LCD),y)
+CSRCS += sam_lcd.c
+endif
+endif
+
+ifeq ($(CONFIG_LIB_BOARDCTL),y)
+CSRCS += sam_appinit.c
+endif
+
+include $(TOPDIR)/boards/Board.mk

boards/arduino-due/src/arduino-due.h

@@ -1,5 +1,5 @@
 /************************************************************************************
- * configs/arduino-due/src/arduino-due.h
+ * boards/arduino-due/src/arduino-due.h
  *
  *   Copyright (C) 2013, 2018 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
@@ -33,8 +33,8 @@
  *
  ************************************************************************************/
 
-#ifndef __CONFIGS_ARDUINO_DUE_SRC_ARDUNO_DUE_H
-#define __CONFIGS_ARDUINO_DUE_SRC_ARDUNO_DUE_H
+#ifndef __BOARDS_ARDUINO_DUE_SRC_ARDUNO_DUE_H
+#define __BOARDS_ARDUINO_DUE_SRC_ARDUNO_DUE_H
 
 /************************************************************************************
  * Included Files
@@ -360,5 +360,5 @@ int sam_tsc_setup(int minor);
 #endif
 
 #endif /* __ASSEMBLY__ */
-#endif /* __CONFIGS_ARDUINO_DUE_SRC_ARDUNO_DUE_H */
+#endif /* __BOARDS_ARDUINO_DUE_SRC_ARDUNO_DUE_H */
 

boards/arduino-due/src/sam_autoleds.c

@@ -0,0 +1,204 @@
+/****************************************************************************
+ * boards/arduino-due/src/sam_autoleds.c
+ *
+ *   Copyright (C) 2013, 2015 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 <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/board.h>
+
+#include "chip.h"
+#include "sam_gpio.h"
+#include "arduino-due.h"
+
+/* The board.h file may override pin configurations defined in sam_pinmap.h */
+
+#include <arch/board/board.h>
+
+#ifdef CONFIG_ARCH_LEDS
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+/*  There are three user-controllable LEDs on board the Arduino Due board:
+ *
+ *     LED              GPIO
+ *     ---------------- -----
+ *     L   Amber LED    PB27
+ *     TX  Yellow LED   PA21
+ *     RX  Yellow LED   PC30
+ *
+ * LED L is connected to ground and can be illuminated by driving the PB27
+ * output high. The TX and RX LEDs are pulled high and can be illuminated by
+ * driving the corresponding
+ * GPIO output to low.
+ *
+ * These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
+ * defined.  In that case, the usage by the board port is defined in
+ * include/board.h and src/sam_leds.c. The LEDs are used to encode OS-related
+ * events as follows:
+ *
+ *   SYMBOL                MEANING                         LED STATE
+ *                                                   L         TX       RX
+ *   -------------------  -----------------------  -------- -------- --------
+ *   LED_STARTED          NuttX has been started     OFF      OFF      OFF
+ *   LED_HEAPALLOCATE     Heap has been allocated    OFF      OFF      OFF
+ *   LED_IRQSENABLED      Interrupts enabled         OFF      OFF      OFF
+ *   LED_STACKCREATED     Idle stack created         ON       OFF      OFF
+ *   LED_INIRQ            In an interrupt            N/C      GLOW     OFF
+ *   LED_SIGNAL           In a signal handler        N/C      GLOW     OFF
+ *   LED_ASSERTION        An assertion failed        N/C      GLOW     OFF
+ *   LED_PANIC            The system has crashed     N/C      N/C      Blinking
+ *   LED_IDLE             MCU is is sleep mode       ------ Not used --------
+ *
+ * Thus if LED L is statically on, NuttX has successfully booted and is,
+ * apparently, running normmally.  If LED RX is glowing, then NuttX is
+ * handling interrupts (and also signals and assertions).  If TX is flashing
+ * at approximately 2Hz, then a fatal error has been detected and the system
+ */
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_autoled_initialize
+ ****************************************************************************/
+
+void board_autoled_initialize(void)
+{
+  /* Configure RX and TX LED GPIOs for output */
+
+  sam_configgpio(GPIO_LED_L);
+  sam_configgpio(GPIO_LED_RX);
+  sam_configgpio(GPIO_LED_TX);
+}
+
+/****************************************************************************
+ * Name: board_autoled_on
+ ****************************************************************************/
+
+void board_autoled_on(int led)
+{
+  switch (led)
+    {
+      /* 0: LED_STARTED, LED_HEAPALLOCATE, LED_IRQSENABLED: L=OFF TX=OFF
+       *    RX=OFF
+       *
+       * Since the LEDs were initially all OFF and since this state only
+       * occurs one time, nothing need be done.
+       */
+
+      default:
+      case 0:
+        break;
+
+      /* 1: LED_STACKCREATED: L=ON TX=OFF RX=OFF
+       *
+       * This case will also occur only once.  Note that unlike the other
+       * LEDs, LED L is active high.
+       */
+
+      case 1:
+        sam_gpiowrite(GPIO_LED_L, true);
+        break;
+
+      /* 2: LED_INIRQ, LED_SIGNAL, LED_ASSERTION: L=N/C TX=ON RX=N/C
+       *
+       * This case will occur many times.  LED TX is active low.
+       */
+
+     case 2:
+        sam_gpiowrite(GPIO_LED_TX, false);
+        break;
+
+      /* 3: LED_PANIC: L=N/X TX=N/C RX=ON
+       *
+       * This case will also occur many times. LED RX is active low.
+       */
+
+      case 3:
+        sam_gpiowrite(GPIO_LED_RX, false);
+        break;
+    }
+}
+
+/****************************************************************************
+ * Name: board_autoled_off
+ ****************************************************************************/
+
+void board_autoled_off(int led)
+{
+  switch (led)
+    {
+      /* 0: LED_STARTED, LED_HEAPALLOCATE, LED_IRQSENABLED: L=OFF TX=OFF
+       *    RX=OFF
+       * 1: LED_STACKCREATED: L=ON TX=OFF RX=OFF
+       *
+       * These cases should never happen.
+       */
+
+      default:
+      case 1:
+      case 0:
+        break;
+
+      /* 2: LED_INIRQ, LED_SIGNAL, LED_ASSERTION: L=N/C TX=OFF RX=N/C
+       *
+       * This case will occur many times.  LED TX is active low.
+       */
+
+     case 2:
+        sam_gpiowrite(GPIO_LED_TX, true);
+        break;
+
+      /* 3: LED_PANIC: L=N/X TX=N/C RX=OFF
+       *
+       * This case will also occur many times. LED RX is active low.
+       */
+
+      case 3:
+        sam_gpiowrite(GPIO_LED_RX, true);
+        break;
+    }
+}
+
+#endif /* CONFIG_ARCH_LEDS */

boards/arduino-due/src/sam_boot.c

@@ -0,0 +1,92 @@
+/****************************************************************************
+ * boards/arduino-due/src/sam_boot.c
+ *
+ *   Copyright (C) 2013, 2015, 2018 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/board.h>
+
+#include "arduino-due.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sam_boardinitialize
+ *
+ * Description:
+ *   All SAM3/4 architectures must provide the following entry point.  This
+ *   entry point is called early in the initialization -- after all memory
+ *   has been configured and mapped but before any devices have been
+ *   initialized.
+ *
+ ****************************************************************************/
+
+void sam_boardinitialize(void)
+{
+#ifdef CONFIG_ARCH_LEDS
+  /* Configure on-board LEDs if LED support has been selected. */
+
+  board_autoled_initialize();
+#endif
+}
+
+/****************************************************************************
+ * Name: board_late_initialize
+ *
+ * Description:
+ *   If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
+ *   initialization call will be performed in the boot-up sequence to a
+ *   function called board_late_initialize().  board_late_initialize() will be
+ *   called immediately after up_initialize() is called and just before the
+ *   initial application is started.  This additional initialization phase
+ *   may be used, for example, to initialize board-specific device drivers.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_BOARD_LATE_INITIALIZE
+void board_late_initialize(void)
+{
+  /* Perform board-specific initialization */
+
+  (void)sam_bringup();
+}
+#endif

boards/arduino-due/src/sam_mmcsd.c

@@ -0,0 +1,287 @@
+/****************************************************************************
+ * boards/sam3u-ek/src/up_mmcsd.c
+ *
+ *   Copyright (C) 2010, 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 <stdbool.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/mmcsd.h>
+#include <nuttx/spi/spi.h>
+#include <nuttx/spi/spi_bitbang.h>
+
+#include "up_arch.h"
+#include "sam_gpio.h"
+#include "hardware/sam3u_pio.h"
+
+#include "arduino-due.h"
+
+/* In order to use the SD card on the ITEAD shield, you must enable the SPI bit-bang
+ * driver as well as support for SPI-based MMC/SD cards.
+ */
+
+#if defined(CONFIG_ARDUINO_ITHEAD_TFT) && defined(CONFIG_SPI_BITBANG) && \
+    defined(CONFIG_MMCSD_SPI)
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+
+#ifdef CONFIG_DISABLE_MOUNTPOINT
+#  error Mountpoints are disabled (CONFIG_DISABLE_MOUNTPOINT=y)
+#endif
+
+/* Definitions for include/nuttx/spi/spi_bitbang.c. */
+
+#define SPI_SETSCK  putreg32(1 << 27, SAM_PIOB_SODR)
+#define SPI_CLRSCK  putreg32(1 << 27, SAM_PIOB_CODR)
+#define SPI_SETMOSI putreg32(1 << 7,  SAM_PIOD_SODR)
+#define SPI_CLRMOSI putreg32(1 << 7,  SAM_PIOD_CODR)
+#define SPI_GETMISO ((getreg32(SAM_PIOD_PDSR) >> 8) & 1)
+#define SPI_SETCS   putreg32(1 << 28, SAM_PIOA_SODR)
+#define SPI_CLRCS   putreg32(1 << 28, SAM_PIOA_CODR)
+
+/* Only mode 0 */
+
+#undef  SPI_BITBANG_DISABLEMODE0
+#define SPI_BITBANG_DISABLEMODE1 1
+#define SPI_BITBANG_DISABLEMODE2 1
+#define SPI_BITBANG_DISABLEMODE3 1
+
+/* Only 8-bit data width */
+
+#undef SPI_BITBANG_VARWIDTH
+
+/* Calibration value for timing loop */
+
+#define SPI_BITBAND_LOOPSPERMSEC CONFIG_BOARD_LOOPSPERMSEC
+
+/* SPI_PERBIT_NSEC is the minimum time to transfer one bit.  This determines
+ * the maximum frequency and is also used to calculate delays to achieve
+ * other SPI frequencies.
+ */
+
+#define SPI_PERBIT_NSEC      100
+
+/* Misc definitions */
+
+#define SAM34_MMCSDSLOTNO    0    /* There is only one slot */
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+static void spi_select(FAR struct spi_bitbang_s *priv, uint32_t devid,
+                       bool selected);
+static uint8_t spi_status(FAR struct spi_bitbang_s *priv, uint32_t devid);
+#ifdef CONFIG_SPI_CMDDATA
+static int spi_cmddata(FAR struct spi_bitbang_s *priv, uint32_t devid,
+                       bool cmd);
+#endif
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+/****************************************************************************
+ * Include the bit-band skeleton logic
+ ****************************************************************************/
+
+#include <nuttx/spi/spi_bitbang.c>
+
+/****************************************************************************
+ * Name: spi_select
+ *
+ * Description:
+ *   Select or de-selected the SPI device specified by 'devid'
+ *
+ * Input Parameters:
+ *   priv     - An instance of the bit-bang driver structure
+ *   devid    - The device to select or de-select
+ *   selected - True:select false:de-select
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+static void spi_select(FAR struct spi_bitbang_s *priv, uint32_t devid,
+                       bool selected)
+{
+  if (devid == SPIDEV_MMCSD(0))
+    {
+      if (selected)
+        {
+          SPI_CLRCS;
+        }
+      else
+        {
+          SPI_SETCS;
+        }
+    }
+}
+
+/****************************************************************************
+ * Name: spi_status
+ *
+ * Description:
+ *   Return status of the SPI device specified by 'devid'
+ *
+ * Input Parameters:
+ *   priv     - An instance of the bit-bang driver structure
+ *   devid    - The device to select or de-select
+ *
+ * Returned Value:
+ *   An 8-bit, bit-encoded status byte
+ *
+ ****************************************************************************/
+
+static uint8_t spi_status(FAR struct spi_bitbang_s *priv, uint32_t devid)
+{
+  if (devid == SPIDEV_MMCSD(0))
+    {
+      return SPI_STATUS_PRESENT;
+    }
+
+  return 0;
+}
+
+/****************************************************************************
+ * Name: spi_cmddata
+ *
+ * Description:
+ *   If there were was a CMD/DATA line, this function would manage it
+ *
+ * Input Parameters:
+ *   priv  - An instance of the bit-bang driver structure
+ *   devid - The device to use
+ *   cmd   - True=MCD false=DATA
+ *
+ * Returned Value:
+ *  OK
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SPI_CMDDATA
+static int spi_cmddata(FAR struct spi_bitbang_s *priv, uint32_t devid,
+                       bool cmd)
+{
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * Name: sam_mmcsd_spiinitialize
+ *
+ * Description:
+ *   Initialize the SPI bit-bang driver
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   A non-NULL reference to the SPI driver on success
+ *
+ ****************************************************************************/
+
+static FAR struct spi_dev_s *sam_mmcsd_spiinitialize(void)
+{
+  /* Initialize GPIOs */
+
+  sam_configgpio(GPIO_SD_SCK);
+  sam_configgpio(GPIO_SD_MISO);
+  sam_configgpio(GPIO_SD_MOSI);
+  sam_configgpio(GPIO_SD_CS);
+
+  /* Create the SPI driver instance */
+
+  return spi_create_bitbang(&g_spiops);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sam_sdinitialize
+ *
+ * Description:
+ *   Initialize the SPI-based SD card.
+ *
+ ****************************************************************************/
+
+int sam_sdinitialize(int minor)
+{
+  FAR struct spi_dev_s *spi;
+  int ret;
+
+  /* Get the SPI driver instance for the SD chip select */
+
+  finfo("Initializing bit bang SPI for the MMC/SD slot\n");
+
+  spi = sam_mmcsd_spiinitialize();
+  if (!spi)
+    {
+      ferr("ERROR: Failed to bit bang SPI for the MMC/SD slot\n");
+      return -ENODEV;
+    }
+
+  finfo("Successfully initialized bit bang SPI for the MMC/SD slot\n");
+
+  /* Bind the SPI device for the chip select to the slot */
+
+  finfo("Binding bit bang SPI device to MMC/SD slot %d\n",
+        SAM34_MMCSDSLOTNO);
+
+  ret = mmcsd_spislotinitialize(minor, SAM34_MMCSDSLOTNO, spi);
+  if (ret < 0)
+    {
+      ferr("ERROR: Failed to bind  bit bang SPI device to MMC/SD slot %d: %d\n",
+            SAM34_MMCSDSLOTNO, ret);
+      return ret;
+    }
+
+  finfo("Successfuly bound  bit bang SPI device to MMC/SD slot %d\n",
+        SAM34_MMCSDSLOTNO);
+
+  return OK;
+}
+
+#endif /* CONFIG_ARDUINO_ITHEAD_TFT && CONFIG_SPI_BITBANG && CONFIG_MMC_SPI */

boards/arduino-due/src/sam_touchscreen.c

@@ -0,0 +1,393 @@
+/************************************************************************************
+ * boards/sam3u-ek/src/up_touchscreen.c
+ *
+ *   Copyright (C) 2011-2013 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 <stdbool.h>
+#include <stdio.h>
+#include <debug.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <nuttx/board.h>
+#include <nuttx/spi/spi.h>
+#include <nuttx/spi/spi_bitbang.h>
+#include <nuttx/input/touchscreen.h>
+#include <nuttx/input/ads7843e.h>
+
+#include "up_arch.h"
+#include "sam_gpio.h"
+#include "hardware/sam3u_pio.h"
+
+#include "arduino-due.h"
+
+/* In order to use the SD card on the ITEAD shield, you must enable the SPI
+ * bit-bang driver as well as support for SPI-based ADS7843E/XPT2046
+ * touchscreen controller.
+ */
+
+#if defined(CONFIG_ARDUINO_ITHEAD_TFT) && defined(CONFIG_SPI_BITBANG) && \
+    defined(CONFIG_INPUT_ADS7843E)
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+
+#ifndef CONFIG_SAM34_GPIOC_IRQ
+#  error "Touchscreen support requires CONFIG_SAM34_GPIOC_IRQ"
+#endif
+
+#ifndef CONFIG_ADS7843E_FREQUENCY
+#  define CONFIG_ADS7843E_FREQUENCY 500000
+#endif
+
+#ifndef CONFIG_ADS7843E_SPIDEV
+#  define CONFIG_ADS7843E_SPIDEV 0
+#endif
+
+#ifndef CONFIG_ADS7843E_DEVMINOR
+#  define CONFIG_ADS7843E_DEVMINOR 0
+#endif
+
+/* Definitions for include/nuttx/spi/spi_bitbang.c. */
+
+#define SPI_SETSCK  putreg32(1 << 24, SAM_PIOA_SODR)
+#define SPI_CLRSCK  putreg32(1 << 24, SAM_PIOA_CODR)
+#define SPI_SETMOSI putreg32(1 << 16, SAM_PIOA_SODR)
+#define SPI_CLRMOSI putreg32(1 << 16, SAM_PIOA_CODR)
+#define SPI_GETMISO ((getreg32(SAM_PIOC_PDSR) >> 22) & 1)
+
+/* Only mode 0 */
+
+#undef  SPI_BITBANG_DISABLEMODE0
+#define SPI_BITBANG_DISABLEMODE1 1
+#define SPI_BITBANG_DISABLEMODE2 1
+#define SPI_BITBANG_DISABLEMODE3 1
+
+/* Only 8-bit data width */
+
+#undef SPI_BITBANG_VARWIDTH
+
+/* Calibration value for timing loop */
+
+#define SPI_BITBAND_LOOPSPERMSEC CONFIG_BOARD_LOOPSPERMSEC
+
+/* SPI_PERBIT_NSEC is the minimum time to transfer one bit.  This determines
+ * the maximum frequency and is also used to calculate delays to achieve
+ * other SPI frequencies.
+ */
+
+#define SPI_PERBIT_NSEC      100
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+/* Lower-half SPI */
+
+static void spi_select(FAR struct spi_bitbang_s *priv, uint32_t devid,
+                       bool selected);
+static uint8_t spi_status(FAR struct spi_bitbang_s *priv, uint32_t devid);
+#ifdef CONFIG_SPI_CMDDATA
+static int spi_cmddata(FAR struct spi_bitbang_s *priv, uint32_t devid,
+                       bool cmd);
+#endif
+
+/* IRQ/GPIO access callbacks.  These operations all hidden behind
+ * callbacks to isolate the XPT2046 driver from differences in GPIO
+ * interrupt handling by varying boards and MCUs.  If possible,
+ * interrupts should be configured on both rising and falling edges
+ * so that contact and loss-of-contact events can be detected.
+ *
+ * attach  - Attach the XPT2046 interrupt handler to the GPIO interrupt
+ * enable  - Enable or disable the GPIO interrupt
+ * clear   - Acknowledge/clear any pending GPIO interrupt
+ * pendown - Return the state of the pen down GPIO input
+ */
+
+static int  tsc_attach(FAR struct ads7843e_config_s *state, xcpt_t isr);
+static void tsc_enable(FAR struct ads7843e_config_s *state, bool enable);
+static void tsc_clear(FAR struct ads7843e_config_s *state);
+static bool tsc_busy(FAR struct ads7843e_config_s *state);
+static bool tsc_pendown(FAR struct ads7843e_config_s *state);
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/* A reference to a structure of this type must be passed to the XPT2046
+ * driver.  This structure provides information about the configuration
+ * of the XPT2046 and provides some board-specific hooks.
+ *
+ * Memory for this structure is provided by the caller.  It is not copied
+ * by the driver and is presumed to persist while the driver is active. The
+ * memory must be writable because, under certain circumstances, the driver
+ * may modify frequency or X plate resistance values.
+ */
+
+static struct ads7843e_config_s g_tscinfo =
+{
+  .frequency = CONFIG_ADS7843E_FREQUENCY,
+
+  .attach    = tsc_attach,
+  .enable    = tsc_enable,
+  .clear     = tsc_clear,
+  .busy      = tsc_busy,
+  .pendown   = tsc_pendown,
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Include the bit-band skeleton logic
+ ****************************************************************************/
+
+#include <nuttx/spi/spi_bitbang.c>
+
+/****************************************************************************
+ * Name: spi_select
+ *
+ * Description:
+ *   Select or de-selected the SPI device specified by 'devid'
+ *
+ * Input Parameters:
+ *   priv     - An instance of the bit-bang driver structure
+ *   devid    - The device to select or de-select
+ *   selected - True:select false:de-select
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+static void spi_select(FAR struct spi_bitbang_s *priv, uint32_t devid,
+                       bool selected)
+{
+  /* The touchscreen controller is always selected */
+}
+
+/****************************************************************************
+ * Name: spi_status
+ *
+ * Description:
+ *   Return status of the SPI device specified by 'devid'
+ *
+ * Input Parameters:
+ *   priv     - An instance of the bit-bang driver structure
+ *   devid    - The device to select or de-select
+ *
+ * Returned Value:
+ *   An 8-bit, bit-encoded status byte
+ *
+ ****************************************************************************/
+
+static uint8_t spi_status(FAR struct spi_bitbang_s *priv, uint32_t devid)
+{
+  return 0;
+}
+
+/****************************************************************************
+ * Name: spi_cmddata
+ *
+ * Description:
+ *   If there were was a CMD/DATA line, this function would manage it
+ *
+ * Input Parameters:
+ *   priv  - An instance of the bit-bang driver structure
+ *   devid - The device to use
+ *   cmd   - True=MCD false=DATA
+ *
+ * Returned Value:
+ *  OK
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SPI_CMDDATA
+static int spi_cmddata(FAR struct spi_bitbang_s *priv, uint32_t devid,
+                       bool cmd)
+{
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * IRQ/GPIO access callbacks.  These operations all hidden behind
+ * callbacks to isolate the XPT2046 driver from differences in GPIO
+ * interrupt handling by varying boards and MCUs.  If possible,
+ * interrupts should be configured on both rising and falling edges
+ * so that contact and loss-of-contact events can be detected.
+ *
+ *   attach  - Attach the XPT2046 interrupt handler to the GPIO interrupt
+ *   enable  - Enable or disable the GPIO interrupt
+ *   clear   - Acknowledge/clear any pending GPIO interrupt
+ *   pendown - Return the state of the pen down GPIO input
+ *
+ ****************************************************************************/
+
+static int tsc_attach(FAR struct ads7843e_config_s *state, xcpt_t isr)
+{
+  /* Attach the XPT2046 interrupt */
+
+  iinfo("Attaching %p to IRQ %d\n", isr, SAM_TSC_IRQ);
+  return irq_attach(SAM_TSC_IRQ, isr, NULL);
+}
+
+static void tsc_enable(FAR struct ads7843e_config_s *state, bool enable)
+{
+  /* Attach and enable, or detach and disable */
+
+  iinfo("IRQ:%d enable:%d\n", SAM_TSC_IRQ, enable);
+  if (enable)
+    {
+      sam_gpioirqenable(SAM_TSC_IRQ);
+    }
+  else
+    {
+      sam_gpioirqdisable(SAM_TSC_IRQ);
+    }
+}
+
+static void tsc_clear(FAR struct ads7843e_config_s *state)
+{
+  /* Does nothing */
+}
+
+static bool tsc_busy(FAR struct ads7843e_config_s *state)
+{
+  return false; /* The BUSY signal is not connected */
+}
+
+static bool tsc_pendown(FAR struct ads7843e_config_s *state)
+{
+  /* The /PENIRQ value is active low */
+
+  bool pendown = !sam_gpioread(GPIO_TSC_IRQ);
+  iinfo("pendown:%d\n", pendown);
+  return pendown;
+}
+
+/****************************************************************************
+ * Name: sam_tsc_spiinitialize
+ *
+ * Description:
+ *   Initialize the SPI bit-bang driver
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   A non-NULL reference to the SPI driver on success
+ *
+ ****************************************************************************/
+
+static FAR struct spi_dev_s *sam_tsc_spiinitialize(void)
+{
+  /* Configure the SPI bit-bang pins */
+
+  sam_configgpio(GPIO_TSC_SCK);
+  sam_configgpio(GPIO_TSC_MISO);
+  sam_configgpio(GPIO_TSC_MOSI);
+
+  /* Create the SPI driver instance */
+
+  return spi_create_bitbang(&g_spiops);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sam_tsc_setup
+ *
+ * Description:
+ *   This function is called by board-bringup logic to configure the
+ *   touchscreen device.  This function will register the driver as
+ *   /dev/inputN where N is the minor device number.
+ *
+ * Input Parameters:
+ *   minor   - The input device minor number
+ *
+ * Returned Value:
+ *   Zero is returned on success.  Otherwise, a negated errno value is
+ *   returned to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+int sam_tsc_setup(int minor)
+{
+  FAR struct spi_dev_s *dev;
+  int ret;
+
+  iinfo("minor %d\n", minor);
+  DEBUGASSERT(minor == 0);
+
+  /* Configure and enable the XPT2046 interrupt pin as an input */
+
+  (void)sam_configgpio(GPIO_TSC_IRQ);
+
+  /* Configure the PIO interrupt */
+
+  sam_gpioirq(SAM_TSC_IRQ);
+
+  /* Get an instance of the SPI interface for the touchscreen chip select */
+
+  dev = sam_tsc_spiinitialize();
+  if (!dev)
+    {
+      ierr("ERROR: Failed to initialize bit bang SPI\n");
+      return -ENODEV;
+    }
+
+  /* Initialize and register the SPI touschscreen device */
+
+  ret = ads7843e_register(dev, &g_tscinfo, CONFIG_ADS7843E_DEVMINOR);
+  if (ret < 0)
+    {
+      ierr("ERROR: Failed to register touchscreen device\n");
+      /* up_spiuninitialize(dev); */
+      return -ENODEV;
+    }
+
+  return OK;
+}
+
+#endif /* CONFIG_ARDUINO_ITHEAD_TFT && CONFIG_SPI_BITBANG && CONFIG_INPUT_ADS7843E */

boards/arduino-due/src/sam_userleds.c

@@ -0,0 +1,119 @@
+/****************************************************************************
+ * boards/arduino-due/src/sam_userleds.c
+ *
+ *   Copyright (C) 2013, 2015 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 <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "chip.h"
+#include "sam_gpio.h"
+#include "arduino-due.h"
+
+#ifndef CONFIG_ARCH_LEDS
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_userled_initialize
+ ****************************************************************************/
+
+void board_userled_initialize(void)
+{
+  /* Configure LED1-2 GPIOs for output */
+
+  sam_configgpio(GPIO_LED_L);
+  sam_configgpio(GPIO_LED_RX);
+  sam_configgpio(GPIO_LED_TX);
+}
+
+/****************************************************************************
+ * Name: board_userled
+ ****************************************************************************/
+
+void board_userled(int led, bool ledon)
+{
+  uint32_t ledcfg;
+
+  if (led == BOARD_LED_L)
+    {
+      ledcfg = GPIO_LED_RX;
+    }
+  else if (led == BOARD_LED_RX)
+    {
+      ledcfg = GPIO_LED_RX;
+      ledon = !ledon;
+    }
+  else if (led == BOARD_LED_TX)
+    {
+      ledcfg = GPIO_LED_TX;
+      ledon = !ledon;
+    }
+  else
+    {
+      return;
+    }
+
+  sam_gpiowrite(ledcfg, ledon);
+}
+
+/****************************************************************************
+ * Name: board_userled_all
+ ****************************************************************************/
+
+void board_userled_all(uint8_t ledset)
+{
+  bool ledon;
+
+  ledon = ((ledset & BOARD_LED_L_BIT) != 0);
+  sam_gpiowrite(GPIO_LED_L, ledon);
+
+  ledon = ((ledset & BOARD_LED_RX_BIT) != 0);
+  sam_gpiowrite(GPIO_LED_RX, ledon);
+
+  ledon = ((ledset & BOARD_LED_TX_BIT) != 0);
+  sam_gpiowrite(GPIO_LED_TX, ledon);
+}
+
+#endif /* !CONFIG_ARCH_LEDS */

boards/arduino-mega2560/include/board.h

@@ -0,0 +1,85 @@
+/****************************************************************************
+ * boards/arduino-mega2560/include/board.h
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARDUINO_MEGA2560_INCLUDE_BOARD_H
+#define __BOARDS_ARDUINO_MEGA2560_INCLUDE_BOARD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+
+/* Clocking *****************************************************************/
+/* Assume default CLKDIV8 fuse setting is overridden to CLKDIV1 */
+
+//#define BOARD_XTAL_FREQ        20000000         /* 20MHz crystal */
+//#define BOARD_XTAL_FREQ        16700000         /* 16.7MHz crystal */
+#define BOARD_XTAL_FREQ        16000000         /* 16MHz crystal */
+#define BOARD_CPU_CLOCK        BOARD_XTAL_FREQ  /* F_CPU = 16MHz */
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_ARDUINO_MEGA2560_INCLUDE_BOARD_H */

boards/arduino-mega2560/scripts/Make.defs

@@ -0,0 +1,102 @@
+############################################################################
+# boards/arduino-mega2560/scripts/Make.defs
+#
+#   Copyright (C) 2015, 2017 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+include ${TOPDIR}/.config
+include ${TOPDIR}/tools/Config.mk
+include ${TOPDIR}/arch/avr/src/avr/Toolchain.defs
+
+LDSCRIPT = flash.ld
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  DIRLINK = $(TOPDIR)/tools/copydir.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mkwindeps.sh
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = $(ARCHINCLUDES) "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/boards/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
+else
+  # Linux/Cygwin-native toolchain
+  MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
+  ARCHINCLUDES = -I. -isystem "$(TOPDIR)/include"
+  ARCHXXINCLUDES =  $(ARCHINCLUDES) -isystem "$(TOPDIR)/include/cxx"
+  ARCHSCRIPT = -T$(TOPDIR)/boards/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+STRIP = $(CROSSDEV)strip --strip-unneeded
+AR = $(CROSSDEV)ar rcs
+NM = $(CROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g3
+endif
+
+ifneq ($(CONFIG_DEBUG_NOOPT),y)
+  ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
+ARCHWARNINGSXX = -Wall -Wshadow -Wundef
+ARCHDEFINES =
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+ASMEXT = .S
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT = .elf
+
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
+HOSTLDFLAGS =
+

boards/arduino-mega2560/src/Makefile

@@ -0,0 +1,100 @@
+############################################################################
+# boards/arduino-mega2560/src/Makefile
+#
+#   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+ASRCS		=
+CSRCS		= avr_boot.c
+
+ifeq ($(CONFIG_ARCH_LEDS),y)
+CSRCS		+= avr_leds.c
+endif
+
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
+ifeq ($(CONFIG_ARCH_AVR32),y)
+ARCH_SUBDIR	= avr32
+endif
+ifeq ($(CONFIG_ARCH_AVR),y)
+ARCH_SUBDIR	= avr
+endif
+
+ifeq ($(WINTOOL),y)
+  CFLAGS	+= -I "${shell cygpath -w $(TOPDIR)/sched}"
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}"
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/common}"
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/$(ARCH_SUBDIR)}"
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/$(ARCH_SUBDIR)/atmega2560}"
+else
+  CFLAGS	+= -I "$(TOPDIR)/sched"
+  CFLAGS	+= -I "$(ARCH_SRCDIR)/chip"
+  CFLAGS	+= -I "$(ARCH_SRCDIR)/common"
+  CFLAGS	+= -I "$(ARCH_SRCDIR)/$(ARCH_SUBDIR)"
+  CFLAGS	+= -I "$(ARCH_SRCDIR)/$(ARCH_SUBDIR)/atmega2560"
+endif
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+libboard$(LIBEXT): $(OBJS)
+	$(call ARCHIVE, $@, $(OBJS))
+
+.depend: Makefile $(SRCS)
+	$(Q) $(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(Q) touch $@
+
+depend: .depend
+
+context:
+
+clean:
+	$(call DELFILE, libboard$(LIBEXT))
+	$(call CLEAN)
+
+distclean: clean
+	$(call DELFILE, Make.dep)
+	$(call DELFILE, .depend)
+
+-include Make.dep