SAMV71-XULT: Add a network-enabled NSH configuration

configs/samv71-xult/README.txt

@@ -87,9 +87,15 @@ The BASIC nsh configuration is fully function (as desribed below under
      Many drivers will port easily from either the SAM3/4 or from the SAMA5Dx.
      So there is still plenty to be done.
 
-  6. There has been a quick'n'dirty port of the SAMA5D4-EK Ethernet logic
+  6. There is a port of the SAMA5D4-EK Ethernet driver to the SAMV71-XULT.
-     for the SAMV71-XULT.  It does not work properly.  Data on the line
+     Some basic functionality is present, but there are issues:
-     appears to be corrupted, probably at the level of the PHY.
+
+     - There is a compiler optimization problem.  At -O2, there is odd
+       behavior on pings and ARP messages.  But the behavior is OK with
+       optimization disabled.  This is clearly a compiler issue, but I
+       will need eventually to find something better than -O0.
+     - The driver has not been tested with I- and D-Caches enabled.  There
+       are likely issues in that configuration.
 
   7. The USBHS device controller driver (DCD) is complete but non-functional.
      At this point, work has stopped because I am stuck.  The problem is that
@@ -103,6 +109,8 @@ The BASIC nsh configuration is fully function (as desribed below under
      sample code and study of the data sheet, but I have not found the key to
      solving this.
 
+     - Could this be a compiler issue????
+
 Serial Console
 ==============
 
@@ -755,7 +763,103 @@ Configuration sub-directories
 
   nsh:
 
-    Configures the NuttShell (nsh) located at examples/nsh.
+    Configures the NuttShell (nsh) located at examples/nsh.  There are two
+    NSH configurations:
+
+      - nsh.  This configuration is focused on low level, command-line
+        driver testing.  It has not network.
+      - netnsh.  This configuration is focused on network testing and
+        has only limited command support.
+
+    NOTES:
+
+    1. The serial console is configured by default for use with and Arduino
+       serial shield (UART3).  You will need to reconfigure if you will
+       to use a different U[S]ART.
+
+    2. Default stack sizes are large and should really be tuned to reduce
+       the RAM footprint:
+
+         CONFIG_ARCH_INTERRUPTSTACK=2048
+         CONFIG_IDLETHREAD_STACKSIZE=1024
+         CONFIG_USERMAIN_STACKSIZE=2048
+         CONFIG_PTHREAD_STACK_DEFAULT=2048
+         ... and others ...
+
+    3. NSH built-in applications are supported.
+
+       Binary Formats:
+         CONFIG_BUILTIN=y           : Enable support for built-in programs
+
+       Application Configuration:
+         CONFIG_NSH_BUILTIN_APPS=y  : Enable starting apps from NSH command line
+
+    4. The network initialization thread is NOT enabled in this configuration.
+       As a result, networking initialization is performed serially with 
+       NSH bring-up.  The time from reset to the NSH prompt will be determined
+       primarily by this network initialization time.  And can be especially
+       long, perhaps minutes, if the network cable is not connected!
+
+       If fast boot times are required, you need to perform asynchronous
+       network initializatino as described about under "Network Initialization
+       Thread"
+
+    5. SDRAM is NOT enabled in this configuration.
+
+    6. TWI/I2C
+
+       TWIHS0 is enabled in this configuration.  The SAM V71 Xplained Ultra
+       supports two devices on the one on-board I2C device on the TWIHS0 bus:
+       (1) The AT24MAC402 serial EEPROM described above and (2) the Wolfson
+       WM8904 audio CODEC.  This device contains a MAC address for use with
+       the Ethernet interface.
+
+       Relevant configuration settings:
+
+         CONFIG_SAMV7_TWIHS0=y
+         CONFIG_SAMV7_TWIHS0_FREQUENCY=100000
+
+         CONFIG_I2C=y
+         CONFIG_I2C_TRANSFER=y
+
+    7. TWIHS0 is used to support 256 byte non-volatile storage.  This EEPROM
+       holds the assigned MAC address which is necessary for networking. The
+       EEPROM is also avaiable for storage of configuration data using the
+       MTD configuration as described above under the heading, "MTD
+       Configuration Data".
+
+    8. Support for HSMCI is built-in by default. The SAMV71-XULT provides
+       one full-size SD memory card slot.  Refer to the section entitled
+       "SD card" for configuration-related information.
+
+       See "Open Issues" above for issues related to HSMCI.
+
+       The auto-mounter is not enabled.  See the section above entitled
+       "Auto-Mounter".
+
+    9. Performance-related Configuration settings:
+
+       CONFIG_ARMV7M_ICACHE=y                : Instruction cache is enabled
+       CONFIG_ARMV7M_DCACHE=y                : Data cache is enabled
+       CONFIG_ARCH_FPU=y                     : H/W floating point support is enabled
+       CONFIG_ARCH_DPFPU=y                   : 64-bit H/W floating point support is enabled
+
+       # CONFIG_ARMV7M_ITCM is not set       : Support not yet in place
+       # CONFIG_ARMV7M_DTCM is not set       : Support not yet in place
+
+       Stack sizes are also large to simplify the bring-up and should be
+       tuned for better memory usages.
+
+  nsh:
+
+    Configures the NuttShell (nsh) located at examples/nsh.  There are two
+    NSH configurations:
+
+      - nsh.  This configuration is focused on low level, command-line
+        driver testing.  It has not network.
+      - netnsh.  This configuration is focused on network testing and
+        has only limited command support.
+
     NOTES:
 
     1. The serial console is configured by default for use with and Arduino

configs/samv71-xult/netnsh/Make.defs

@@ -0,0 +1,116 @@
+############################################################################
+# configs/samv71-xult/netnsh/Make.defs
+#
+#   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}/.config
+include ${TOPDIR}/tools/Config.mk
+include ${TOPDIR}/arch/arm/src/armv7-m/Toolchain.defs
+
+ifeq ($(CONFIG_ARMV7M_DTCM),y)
+  LDSCRIPT = flash-dtcm.ld
+else
+  LDSCRIPT = flash-sram.ld
+endif
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  DIRLINK = $(TOPDIR)/tools/copydir.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES = -I. -isystem "${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 $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
+else
+  # Linux/Cygwin-native toolchain
+  MKDEP = $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+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)
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fno-rtti
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -fno-strict-aliasing
+ARCHWARNINGSXX = -Wall -Wshadow
+ARCHDEFINES =
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+ifneq ($(CROSSDEV),arm-nuttx-elf-)
+  LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  LDFLAGS += -g
+endif
+
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS =
+

configs/samv71-xult/netnsh/setenv.sh

@@ -0,0 +1,77 @@
+#!/bin/bash
+# configs/sam4e-ek/netnsh/Make.defs
+#
+#   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.
+#
+
+if [ "$_" = "$0" ] ; then
+  echo "You must source this script, not run it!" 1>&2
+  exit 1
+fi
+
+WD=`pwd`
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the Atmel GCC
+# toolchain under Windows.  You will also have to edit this if you install
+# this toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atmel/Atmel Toolchain/ARM GCC/Native/4.7.3.99/arm-gnu-toolchain/bin"
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
+# export TOOLCHAIN_BIN="/cygdrive/c/Users/MyName/MentorGraphics/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
+
+# This is the location where I installed the ARM "GNU Tools for ARM Embedded Processors"
+# You can this free toolchain here https://launchpad.net/gcc-arm-embedded
+export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/GNU Tools ARM Embedded/4.9 2014q4/bin"
+
+# This is the path to the location where I installed the devkitARM toolchain
+# You can get this free toolchain from http://devkitpro.org/ or http://sourceforge.net/projects/devkitpro/
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/devkitARM/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+# export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
+
+echo "PATH : ${PATH}"