Integration testing with Nexys 4 DDR (xilfpga)

conf/bblayers.conf.sample

@@ -0,0 +1,10 @@
+POKY_BBLAYERS_CONF_VERSION = "2"
+BBPATH = "${TOPDIR}"
+BBFILES ?= ""
+BBLAYERS ?= " \
+  ##COREBASE##/meta \
+  ##COREBASE##/meta-poky \
+  ##COREBASE##/meta-yocto-bsp \
+  ##COREBASE##/meta-openembedded/meta-oe \
+  ##COREBASE##/meta-img \
+  "

conf/layer.conf

@@ -8,3 +8,9 @@ BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
 BBFILE_COLLECTIONS += "img"
 BBFILE_PATTERN_img = "^${LAYERDIR}/"
 BBFILE_PRIORITY_img = "6"
+
+LAYERDEPENDS_img = "\
+	core \
+	yocto \
+	openembedded-layer \
+"

conf/local.conf.sample

@@ -0,0 +1,246 @@
+#
+# This file is your local configuration file and is where all local user settings
+# are placed. The comments in this file give some guide to the options a new user
+# to the system might want to change but pretty much any configuration option can
+# be set in this file. More adventurous users can look at local.conf.extended
+# which contains other examples of configuration which can be placed in this file
+# but new users likely won't need any of them initially.
+#
+# Lines starting with the '#' character are commented out and in some cases the
+# default values are provided as comments to show people example syntax. Enabling
+# the option is a question of removing the # character and making any change to the
+# variable as required.
+
+#
+# Machine Selection
+#
+# You need to select a specific machine to target the build with. There are a selection
+# of emulated machines available which can boot and run in the QEMU emulator:
+#
+#MACHINE ?= "qemuarm"
+#MACHINE ?= "qemuarm64"
+#MACHINE ?= "qemumips"
+#MACHINE ?= "qemumips64"
+#MACHINE ?= "qemuppc"
+#MACHINE ?= "qemux86"
+#MACHINE ?= "qemux86-64"
+#
+# There are also the following hardware board target machines included for 
+# demonstration purposes:
+#
+#MACHINE ?= "beaglebone"
+#MACHINE ?= "genericx86"
+#MACHINE ?= "genericx86-64"
+#MACHINE ?= "mpc8315e-rdb"
+#MACHINE ?= "edgerouter"
+#
+# This sets the default machine to be qemuxmips if no other machine is selected:
+MACHINE ??= "qemumips"
+
+#
+# Where to place downloads
+#
+# During a first build the system will download many different source code tarballs
+# from various upstream projects. This can take a while, particularly if your network
+# connection is slow. These are all stored in DL_DIR. When wiping and rebuilding you
+# can preserve this directory to speed up this part of subsequent builds. This directory
+# is safe to share between multiple builds on the same machine too.
+#
+# The default is a downloads directory under TOPDIR which is the build directory.
+#
+#DL_DIR ?= "${TOPDIR}/downloads"
+
+#
+# Where to place shared-state files
+#
+# BitBake has the capability to accelerate builds based on previously built output.
+# This is done using "shared state" files which can be thought of as cache objects
+# and this option determines where those files are placed.
+#
+# You can wipe out TMPDIR leaving this directory intact and the build would regenerate
+# from these files if no changes were made to the configuration. If changes were made
+# to the configuration, only shared state files where the state was still valid would
+# be used (done using checksums).
+#
+# The default is a sstate-cache directory under TOPDIR.
+#
+#SSTATE_DIR ?= "${TOPDIR}/sstate-cache"
+
+#
+# Where to place the build output
+#
+# This option specifies where the bulk of the building work should be done and
+# where BitBake should place its temporary files and output. Keep in mind that
+# this includes the extraction and compilation of many applications and the toolchain
+# which can use Gigabytes of hard disk space.
+#
+# The default is a tmp directory under TOPDIR.
+#
+#TMPDIR = "${TOPDIR}/tmp"
+
+#
+# Default policy config
+#
+# The distribution setting controls which policy settings are used as defaults.
+# The default value is fine for general Yocto project use, at least initially.
+# Ultimately when creating custom policy, people will likely end up subclassing 
+# these defaults.
+#
+DISTRO ?= "poky"
+# As an example of a subclass there is a "bleeding" edge policy configuration
+# where many versions are set to the absolute latest code from the upstream 
+# source control systems. This is just mentioned here as an example, its not
+# useful to most new users.
+# DISTRO ?= "poky-bleeding"
+
+#
+# Package Management configuration
+#
+# This variable lists which packaging formats to enable. Multiple package backends
+# can be enabled at once and the first item listed in the variable will be used
+# to generate the root filesystems.
+# Options are:
+#  - 'package_deb' for debian style deb files
+#  - 'package_ipk' for ipk files are used by opkg (a debian style embedded package manager)
+#  - 'package_rpm' for rpm style packages
+# E.g.: PACKAGE_CLASSES ?= "package_rpm package_deb package_ipk"
+# We default to rpm:
+PACKAGE_CLASSES ?= "package_rpm"
+
+# Using rm_work to save space
+INHERIT += "rm_work"
+
+# If using rm_work, this prevents the rootfs of these images from being deleted 
+# before wic has a chance to package it up into an image file.
+RM_WORK_EXCLUDE = "\
+    ${BUILD_IMAGE} \
+    "
+
+#
+# SDK target architecture
+#
+# This variable specifies the architecture to build SDK items for and means
+# you can build the SDK packages for architectures other than the machine you are
+# running the build on (i.e. building i686 packages on an x86_64 host).
+# Supported values are i686 and x86_64
+#SDKMACHINE ?= "i686"
+
+#
+# Extra image configuration defaults
+#
+# The EXTRA_IMAGE_FEATURES variable allows extra packages to be added to the generated
+# images. Some of these options are added to certain image types automatically. The
+# variable can contain the following options:
+#  "dbg-pkgs"       - add -dbg packages for all installed packages
+#                     (adds symbol information for debugging/profiling)
+#  "dev-pkgs"       - add -dev packages for all installed packages
+#                     (useful if you want to develop against libs in the image)
+#  "ptest-pkgs"     - add -ptest packages for all ptest-enabled packages
+#                     (useful if you want to run the package test suites)
+#  "tools-sdk"      - add development tools (gcc, make, pkgconfig etc.)
+#  "tools-debug"    - add debugging tools (gdb, strace)
+#  "eclipse-debug"  - add Eclipse remote debugging support
+#  "tools-profile"  - add profiling tools (oprofile, lttng, valgrind)
+#  "tools-testapps" - add useful testing tools (ts_print, aplay, arecord etc.)
+#  "debug-tweaks"   - make an image suitable for development
+#                     e.g. ssh root access has a blank password
+# There are other application targets that can be used here too, see
+# meta/classes/image.bbclass and meta/classes/core-image.bbclass for more details.
+# We default to enabling the debugging tweaks.
+EXTRA_IMAGE_FEATURES ?= "debug-tweaks"
+
+#
+# Additional image features
+#
+# The following is a list of additional classes to use when building images which
+# enable extra features. Some available options which can be included in this variable
+# are:
+#   - 'buildstats' collect build statistics
+#   - 'image-mklibs' to reduce shared library files size for an image
+#   - 'image-prelink' in order to prelink the filesystem image
+#   - 'image-swab' to perform host system intrusion detection
+# NOTE: if listing mklibs & prelink both, then make sure mklibs is before prelink
+# NOTE: mklibs also needs to be explicitly enabled for a given image, see local.conf.extended
+USER_CLASSES ?= "buildstats image-mklibs image-prelink"
+
+#
+# Runtime testing of images
+#
+# The build system can test booting virtual machine images under qemu (an emulator)
+# after any root filesystems are created and run tests against those images. To
+# enable this uncomment this line. See classes/testimage(-auto).bbclass for
+# further details.
+#TEST_IMAGE = "1"
+#
+# Interactive shell configuration
+#
+# Under certain circumstances the system may need input from you and to do this it
+# can launch an interactive shell. It needs to do this since the build is
+# multithreaded and needs to be able to handle the case where more than one parallel
+# process may require the user's attention. The default is iterate over the available
+# terminal types to find one that works.
+#
+# Examples of the occasions this may happen are when resolving patches which cannot
+# be applied, to use the devshell or the kernel menuconfig
+#
+# Supported values are auto, gnome, xfce, rxvt, screen, konsole (KDE 3.x only), none
+# Note: currently, Konsole support only works for KDE 3.x due to the way
+# newer Konsole versions behave
+#OE_TERMINAL = "auto"
+# By default disable interactive patch resolution (tasks will just fail instead):
+PATCHRESOLVE = "noop"
+
+#
+# Disk Space Monitoring during the build
+#
+# Monitor the disk space during the build. If there is less that 1GB of space or less
+# than 100K inodes in any key build location (TMPDIR, DL_DIR, SSTATE_DIR), gracefully
+# shutdown the build. If there is less that 100MB or 1K inodes, perform a hard abort
+# of the build. The reason for this is that running completely out of space can corrupt
+# files and damages the build in ways which may not be easily recoverable.
+# It's necesary to monitor /tmp, if there is no space left the build will fail
+# with very exotic errors.
+BB_DISKMON_DIRS = "\
+    STOPTASKS,${TMPDIR},1G,100K \
+    STOPTASKS,${DL_DIR},1G,100K \
+    STOPTASKS,${SSTATE_DIR},1G,100K \
+    STOPTASKS,/tmp,100M,100K \
+    ABORT,${TMPDIR},100M,1K \
+    ABORT,${DL_DIR},100M,1K \
+    ABORT,${SSTATE_DIR},100M,1K \
+    ABORT,/tmp,10M,1K"
+
+#
+# Shared-state files from other locations
+#
+# As mentioned above, shared state files are prebuilt cache data objects which can
+# used to accelerate build time. This variable can be used to configure the system
+# to search other mirror locations for these objects before it builds the data itself.
+#
+# This can be a filesystem directory, or a remote url such as http or ftp. These
+# would contain the sstate-cache results from previous builds (possibly from other
+# machines). This variable works like fetcher MIRRORS/PREMIRRORS and points to the
+# cache locations to check for the shared objects.
+# NOTE: if the mirror uses the same structure as SSTATE_DIR, you need to add PATH
+# at the end as shown in the examples below. This will be substituted with the
+# correct path within the directory structure.
+#SSTATE_MIRRORS ?= "\
+#file://.* http://someserver.tld/share/sstate/PATH;downloadfilename=PATH \n \
+#file://.* file:///some/local/dir/sstate/PATH"
+
+
+#
+# Qemu configuration
+#
+# By default qemu will build with a builtin VNC server where graphical output can be
+# seen. The two lines below enable the SDL backend too. By default libsdl-native will
+# be built, if you want to use your host's libSDL instead of the minimal libsdl built
+# by libsdl-native then uncomment the ASSUME_PROVIDED line below.
+PACKAGECONFIG_append_pn-qemu-native = " sdl"
+PACKAGECONFIG_append_pn-nativesdk-qemu = " sdl"
+#ASSUME_PROVIDED += "libsdl-native"
+
+# CONF_VERSION is increased each time build/conf/ changes incompatibly and is used to
+# track the version of this file when it was generated. This can safely be ignored if
+# this doesn't mean anything to you.
+CONF_VERSION = "1"

conf/machine/xilfpga.conf

@@ -10,5 +10,12 @@ SERIAL_CONSOLES = "115200;ttyS0"
 IMAGE_FSTYPES ?= "cpio.gz"
 
 PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
-#KERNEL_DEFCONFIG_xilfpga = "xilfpga_defconfig"
+PREFERRED_VERSION_linux-yocto = "4.8.12%"
+MACHINE_DEVICETREE ?= "xilfpga/nexys4ddr.dts"
 KERNEL_IMAGETYPE = "vmlinux"
+
+INITRAMFS_IMAGE = "mipsfpga-soc-initramfs"
+INITRAMFS_IMAGE_BUNDLE = "1"
+
+# This device doesn't have an RTC
+MACHINE_FEATURES_BACKFILL_CONSIDERED = "rtc"

recipes-core/images/mipsfpga-soc-initramfs.bb

@@ -0,0 +1,19 @@
+
+include recipes-core/images/core-image-minimal.bb
+
+IMAGE_FSTYPES = "${INITRAMFS_FSTYPES}"
+PACKAGE_INSTALL = "${IMAGE_INSTALL}"
+
+# initramfs/initrd support for dynamic /dev
+PACKAGE_INSTALL += "\
+	initramfs-module-udev \
+	initramfs-module-debug \
+	initramfs-module-use-rootfs \
+	"
+BAD_RECOMMENDATIONS += "initramfs-module-rootfs"
+
+CORE_IMAGE_EXTRA_INSTALL += "\
+	devmem2 \
+	i2c-tools \
+	simple-gpio \
+"

recipes-core/initrdscripts/files/userootfs

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+userootfs_enabled() {
+	return 0
+}
+
+userootfs_run() {
+	if [ -n "$ROOTFS_DIR" ]; then
+		info "Unsetting ROOTFS_DIR"
+		unset ROOTFS_DIR
+	fi
+	exec /sbin/init
+}

recipes-core/initrdscripts/initramfs-framework_1.0.bbappend

@@ -0,0 +1,23 @@
+# Presently, we do not need to find an alternate rootfs since our 
+# kernel and file system are combined.  In the future if we add
+# SD card support to the MIPSfpga core, we can revisit using udev
+# to bootstrap into an external filesystem if necessary.  For now,
+# this append adds a 'norootfs' script
+
+FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+
+SRC_URI += "\
+	file://userootfs \
+"
+
+do_install_append() {
+    install -d ${D}/init.d
+    install -m 0755 ${WORKDIR}/userootfs ${D}/init.d/89-userootfs
+}
+
+PACKAGES += "\
+	initramfs-module-use-rootfs \
+"
+SUMMARY_initramfs-module-use-rootfs = "initramfs for skipping the search for rootfs"
+RDEPENDS_initramfs-module-use-rootfs = "${PN}-base"
+FILES_initramfs-module-use-rootfs = "/init.d/89-userootfs"

recipes-examples/gpio/simple-gpio.bb

@@ -0,0 +1,21 @@
+SUMMARY = "Simple GPIO control example"
+LICENSE = "CLOSED"
+
+COMPATIBLE_MACHINE = "xilfpga"
+
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+SRC_URI = "file://simple_gpio_on.c"
+
+S = "${WORKDIR}"
+
+do_configure[noexec] = "1"
+
+do_compile() {
+    ${CC}  ${CFLAGS} ${LDFLAGS} simple_gpio_on.c -o simple_gpio_on
+}
+
+do_install() {
+    install -d ${D}${bindir}
+    install -m 0755 simple_gpio_on ${D}${bindir}
+}