Merge pull request #81 from agherzan/master

[pyro] Update to follow master

8 files changed, 846 insertions, 0 deletions

diff --git a/docs/Makefile b/docs/Makefile
new file mode 100644
index 0000000..d0de87f
--- /dev/null
+++ b/docs/Makefile
@@ -0,0 +1,225 @@
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+PAPER         =
+BUILDDIR      = _build
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+.PHONY: help
+help:
+        @echo "Please use \`make <target>' where <target> is one of"
+        @echo "  html       to make standalone HTML files"
+        @echo "  dirhtml    to make HTML files named index.html in directories"
+        @echo "  singlehtml to make a single large HTML file"
+        @echo "  pickle     to make pickle files"
+        @echo "  json       to make JSON files"
+        @echo "  htmlhelp   to make HTML files and a HTML help project"
+        @echo "  qthelp     to make HTML files and a qthelp project"
+        @echo "  applehelp  to make an Apple Help Book"
+        @echo "  devhelp    to make HTML files and a Devhelp project"
+        @echo "  epub       to make an epub"
+        @echo "  epub3      to make an epub3"
+        @echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+        @echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+        @echo "  latexpdfja to make LaTeX files and run them through platex/dvipdfmx"
+        @echo "  text       to make text files"
+        @echo "  man        to make manual pages"
+        @echo "  texinfo    to make Texinfo files"
+        @echo "  info       to make Texinfo files and run them through makeinfo"
+        @echo "  gettext    to make PO message catalogs"
+        @echo "  changes    to make an overview of all changed/added/deprecated items"
+        @echo "  xml        to make Docutils-native XML files"
+        @echo "  pseudoxml  to make pseudoxml-XML files for display purposes"
+        @echo "  linkcheck  to check all external links for integrity"
+        @echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
+        @echo "  coverage   to run coverage check of the documentation (if enabled)"
+        @echo "  dummy      to check syntax errors of document sources"
+
+.PHONY: clean
+clean:
+        rm -rf $(BUILDDIR)/*
+
+.PHONY: html
+html:
+        $(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+        @echo
+        @echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+.PHONY: dirhtml
+dirhtml:
+        $(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+        @echo
+        @echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+.PHONY: singlehtml
+singlehtml:
+        $(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+        @echo
+        @echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+.PHONY: pickle
+pickle:
+        $(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
+        @echo
+        @echo "Build finished; now you can process the pickle files."
+
+.PHONY: json
+json:
+        $(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
+        @echo
+        @echo "Build finished; now you can process the JSON files."
+
+.PHONY: htmlhelp
+htmlhelp:
+        $(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+        @echo
+        @echo "Build finished; now you can run HTML Help Workshop with the" \
+              ".hhp project file in $(BUILDDIR)/htmlhelp."
+
+.PHONY: qthelp
+qthelp:
+        $(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
+        @echo
+        @echo "Build finished; now you can run "qcollectiongenerator" with the" \
+              ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
+        @echo "# qcollectiongenerator $(BUILDDIR)/qthelp/meta-raspberrypi.qhcp"
+        @echo "To view the help file:"
+        @echo "# assistant -collectionFile $(BUILDDIR)/qthelp/meta-raspberrypi.qhc"
+
+.PHONY: applehelp
+applehelp:
+        $(SPHINXBUILD) -b applehelp $(ALLSPHINXOPTS) $(BUILDDIR)/applehelp
+        @echo
+        @echo "Build finished. The help book is in $(BUILDDIR)/applehelp."
+        @echo "N.B. You won't be able to view it unless you put it in" \
+              "~/Library/Documentation/Help or install it in your application" \
+              "bundle."
+
+.PHONY: devhelp
+devhelp:
+        $(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
+        @echo
+        @echo "Build finished."
+        @echo "To view the help file:"
+        @echo "# mkdir -p $$HOME/.local/share/devhelp/meta-raspberrypi"
+        @echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/meta-raspberrypi"
+        @echo "# devhelp"
+
+.PHONY: epub
+epub:
+        $(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+        @echo
+        @echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+.PHONY: epub3
+epub3:
+        $(SPHINXBUILD) -b epub3 $(ALLSPHINXOPTS) $(BUILDDIR)/epub3
+        @echo
+        @echo "Build finished. The epub3 file is in $(BUILDDIR)/epub3."
+
+.PHONY: latex
+latex:
+        $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+        @echo
+        @echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
+        @echo "Run \`make' in that directory to run these through (pdf)latex" \
+              "(use \`make latexpdf' here to do that automatically)."
+
+.PHONY: latexpdf
+latexpdf:
+        $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+        @echo "Running LaTeX files through pdflatex..."
+        $(MAKE) -C $(BUILDDIR)/latex all-pdf
+        @echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+.PHONY: latexpdfja
+latexpdfja:
+        $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+        @echo "Running LaTeX files through platex and dvipdfmx..."
+        $(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
+        @echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+.PHONY: text
+text:
+        $(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
+        @echo
+        @echo "Build finished. The text files are in $(BUILDDIR)/text."
+
+.PHONY: man
+man:
+        $(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
+        @echo
+        @echo "Build finished. The manual pages are in $(BUILDDIR)/man."
+
+.PHONY: texinfo
+texinfo:
+        $(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+        @echo
+        @echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
+        @echo "Run \`make' in that directory to run these through makeinfo" \
+              "(use \`make info' here to do that automatically)."
+
+.PHONY: info
+info:
+        $(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+        @echo "Running Texinfo files through makeinfo..."
+        make -C $(BUILDDIR)/texinfo info
+        @echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
+
+.PHONY: gettext
+gettext:
+        $(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
+        @echo
+        @echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
+
+.PHONY: changes
+changes:
+        $(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
+        @echo
+        @echo "The overview file is in $(BUILDDIR)/changes."
+
+.PHONY: linkcheck
+linkcheck:
+        $(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
+        @echo
+        @echo "Link check complete; look for any errors in the above output " \
+              "or in $(BUILDDIR)/linkcheck/output.txt."
+
+.PHONY: doctest
+doctest:
+        $(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
+        @echo "Testing of doctests in the sources finished, look at the " \
+              "results in $(BUILDDIR)/doctest/output.txt."
+
+.PHONY: coverage
+coverage:
+        $(SPHINXBUILD) -b coverage $(ALLSPHINXOPTS) $(BUILDDIR)/coverage
+        @echo "Testing of coverage in the sources finished, look at the " \
+              "results in $(BUILDDIR)/coverage/python.txt."
+
+.PHONY: xml
+xml:
+        $(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml
+        @echo
+        @echo "Build finished. The XML files are in $(BUILDDIR)/xml."
+
+.PHONY: pseudoxml
+pseudoxml:
+        $(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml
+        @echo
+        @echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."
+
+.PHONY: dummy
+dummy:
+        $(SPHINXBUILD) -b dummy $(ALLSPHINXOPTS) $(BUILDDIR)/dummy
+        @echo
+        @echo "Build finished. Dummy builder generates no files."
diff --git a/docs/conf.py b/docs/conf.py
new file mode 100644
index 0000000..013c8a7
--- /dev/null
+++ b/docs/conf.py
@@ -0,0 +1,343 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# meta-raspberrypi documentation build configuration file, created by
+# sphinx-quickstart on Tue May 23 09:51:24 2017.
+#
+# This file is execfile()d with the current directory set to its
+# containing dir.
+#
+# Note that not all possible configuration values are present in this
+# autogenerated file.
+#
+# All configuration values have a default; values that are commented out
+# serve to show the default.
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#
+# import os
+# import sys
+# sys.path.insert(0, os.path.abspath('.'))
+
+# -- General configuration ------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+#
+# needs_sphinx = '1.0'
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = []
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix(es) of source filenames.
+# You can specify multiple suffix as a list of string:
+#
+# source_suffix = ['.rst', '.md']
+source_suffix = ['.rst', '.md']
+
+# The encoding of source files.
+#
+# source_encoding = 'utf-8-sig'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = 'meta-raspberrypi'
+copyright = '2017, meta-raspberrypi contributors'
+author = 'meta-raspberrypi contributors'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# The short X.Y version.
+version = 'master'
+# The full version, including alpha/beta/rc tags.
+release = 'master'
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#
+# This is also used if you do content translation via gettext catalogs.
+# Usually you set "language" from the command line for these cases.
+language = None
+
+# There are two options for replacing |today|: either, you set today to some
+# non-false value, then it is used:
+#
+# today = ''
+#
+# Else, today_fmt is used as the format for a strftime call.
+#
+# today_fmt = '%B %d, %Y'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This patterns also effect to html_static_path and html_extra_path
+exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
+
+# The reST default role (used for this markup: `text`) to use for all
+# documents.
+#
+# default_role = None
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+#
+# add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+#
+# add_module_names = True
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+#
+# show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# A list of ignored prefixes for module index sorting.
+# modindex_common_prefix = []
+
+# If true, keep warnings as "system message" paragraphs in the built documents.
+# keep_warnings = False
+
+# If true, `todo` and `todoList` produce output, else they produce nothing.
+todo_include_todos = False
+
+
+# -- Options for HTML output ----------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+html_theme = 'alabaster'
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+#
+# html_theme_options = {}
+
+# Add any paths that contain custom themes here, relative to this directory.
+# html_theme_path = []
+
+# The name for this set of Sphinx documents.
+# "<project> v<release> documentation" by default.
+#
+# html_title = 'meta-raspberrypi vmaster'
+
+# A shorter title for the navigation bar.  Default is the same as html_title.
+#
+# html_short_title = None
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+#
+# html_logo = None
+
+# The name of an image file (relative to this directory) to use as a favicon of
+# the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+#
+# html_favicon = None
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+# Add any extra paths that contain custom files (such as robots.txt or
+# .htaccess) here, relative to this directory. These files are copied
+# directly to the root of the documentation.
+#
+# html_extra_path = []
+
+# If not None, a 'Last updated on:' timestamp is inserted at every page
+# bottom, using the given strftime format.
+# The empty string is equivalent to '%b %d, %Y'.
+#
+# html_last_updated_fmt = None
+
+# If true, SmartyPants will be used to convert quotes and dashes to
+# typographically correct entities.
+#
+# html_use_smartypants = True
+
+# Custom sidebar templates, maps document names to template names.
+#
+# html_sidebars = {}
+
+# Additional templates that should be rendered to pages, maps page names to
+# template names.
+#
+# html_additional_pages = {}
+
+# If false, no module index is generated.
+#
+# html_domain_indices = True
+
+# If false, no index is generated.
+#
+# html_use_index = True
+
+# If true, the index is split into individual pages for each letter.
+#
+# html_split_index = False
+
+# If true, links to the reST sources are added to the pages.
+#
+# html_show_sourcelink = True
+
+# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
+#
+# html_show_sphinx = True
+
+# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
+#
+# html_show_copyright = True
+
+# If true, an OpenSearch description file will be output, and all pages will
+# contain a <link> tag referring to it.  The value of this option must be the
+# base URL from which the finished HTML is served.
+#
+# html_use_opensearch = ''
+
+# This is the file name suffix for HTML files (e.g. ".xhtml").
+# html_file_suffix = None
+
+# Language to be used for generating the HTML full-text search index.
+# Sphinx supports the following languages:
+#   'da', 'de', 'en', 'es', 'fi', 'fr', 'h', 'it', 'ja'
+#   'nl', 'no', 'pt', 'ro', 'r', 'sv', 'tr', 'zh'
+#
+# html_search_language = 'en'
+
+# A dictionary with options for the search language support, empty by default.
+# 'ja' uses this config value.
+# 'zh' user can custom change `jieba` dictionary path.
+#
+# html_search_options = {'type': 'default'}
+
+# The name of a javascript file (relative to the configuration directory) that
+# implements a search results scorer. If empty, the default will be used.
+#
+# html_search_scorer = 'scorer.js'
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'meta-raspberrypidoc'
+
+# -- Options for LaTeX output ---------------------------------------------
+
+latex_elements = {
+     # The paper size ('letterpaper' or 'a4paper').
+     #
+     # 'papersize': 'letterpaper',
+
+     # The font size ('10pt', '11pt' or '12pt').
+     #
+     # 'pointsize': '10pt',
+
+     # Additional stuff for the LaTeX preamble.
+     #
+     # 'preamble': '',
+
+     # Latex figure (float) alignment
+     #
+     # 'figure_align': 'htbp',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title,
+#  author, documentclass [howto, manual, or own class]).
+latex_documents = [
+    (master_doc, 'meta-raspberrypi.tex', 'meta-raspberrypi Documentation',
+     'meta-raspberrypi contributors', 'manual'),
+]
+
+# The name of an image file (relative to this directory) to place at the top of
+# the title page.
+#
+# latex_logo = None
+
+# For "manual" documents, if this is true, then toplevel headings are parts,
+# not chapters.
+#
+# latex_use_parts = False
+
+# If true, show page references after internal links.
+#
+# latex_show_pagerefs = False
+
+# If true, show URL addresses after external links.
+#
+# latex_show_urls = False
+
+# Documents to append as an appendix to all manuals.
+#
+# latex_appendices = []
+
+# It false, will not define \strong, \code,     itleref, \crossref ... but only
+# \sphinxstrong, ..., \sphinxtitleref, ... To help avoid clash with user added
+# packages.
+#
+# latex_keep_old_macro_names = True
+
+# If false, no module index is generated.
+#
+# latex_domain_indices = True
+
+
+# -- Options for manual page output ---------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    (master_doc, 'meta-raspberrypi', 'meta-raspberrypi Documentation',
+     [author], 1)
+]
+
+# If true, show URL addresses after external links.
+#
+# man_show_urls = False
+
+
+# -- Options for Texinfo output -------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+    (master_doc, 'meta-raspberrypi', 'meta-raspberrypi Documentation',
+     author, 'meta-raspberrypi', 'One line description of project.',
+     'Miscellaneous'),
+]
+
+# Documents to append as an appendix to all manuals.
+#
+# texinfo_appendices = []
+
+# If false, no module index is generated.
+#
+# texinfo_domain_indices = True
+
+# How to display URL addresses: 'footnote', 'no', or 'inline'.
+#
+# texinfo_show_urls = 'footnote'
+
+# If true, do not generate a @detailmenu in the "Top" node's menu.
+#
+# texinfo_no_detailmenu = False
+
+source_parsers = {
+    '.md': 'recommonmark.parser.CommonMarkParser',
+}
diff --git a/docs/contributing.md b/docs/contributing.md
new file mode 100644
index 0000000..94dbf49
--- /dev/null
+++ b/docs/contributing.md
@@ -0,0 +1,38 @@
+# Contributing
+
+## Mailing list
+
+The main communication tool we use is a mailing list:
+* <yocto@yoctoproject.org>
+* <https://lists.yoctoproject.org/listinfo/yocto>
+
+Feel free to ask any kind of questions but always prepend your email subject
+with "[meta-raspberrypi]". This is because we use the 'yocto' mailing list and
+not a perticular 'meta-raspberrypi' mailing list.
+
+## Patches and pull requests
+
+All the contributions should be compliant with the openembedded patch
+guidelines: <http://www.openembedded.org/wiki/Commit_Patch_Message_Guidelines>
+
+To contribute to this project you should send pull requests to the github mirror
+(<https://github.com/agherzan/meta-raspberrypi>). **Additionally** you can send
+the patches for review to the above specified mailing list.
+
+When creating patches for the mailing list, please use something like:
+
+    git format-patch -s --subject-prefix='meta-raspberrypi][PATCH' origin
+
+When sending patches to the mailing list, please use something like:
+
+    git send-email --to yocto@yoctoproject.org <generated patch>
+
+## Github issues
+
+In order to manage and trace the meta-raspberrypi issues, we use github issues:
+<https://github.com/agherzan/meta-raspberrypi/issues>
+
+If you push patches which have a github issue associated, please provide the
+issue number in the commit log just before "Signed-off-by" line(s). Example line
+for a bug:
+`[Issue #13]`
diff --git a/docs/extra-apps.md b/docs/extra-apps.md
new file mode 100644
index 0000000..53007dc
--- /dev/null
+++ b/docs/extra-apps.md
@@ -0,0 +1,9 @@
+# Extra apps
+
+## omxplayer
+
+omxplayer depends on libav which has a commercial license. So in order to be
+able to compile omxplayer you will need to whiteflag the commercial
+license in your local.conf:
+
+    LICENSE_FLAGS_WHITELIST = "commercial"
diff --git a/docs/extra-build-config.md b/docs/extra-build-config.md
new file mode 100644
index 0000000..365c490
--- /dev/null
+++ b/docs/extra-build-config.md
@@ -0,0 +1,180 @@
+# Optional build configuration
+
+There are a set of ways in which a user can influence different paramenters of
+the build. We list here the ones that are closely related to this BSP or
+specific to it. For the rest please check:
+<http://www.yoctoproject.org/docs/latest/ref-manual/ref-manual.html>
+
+## Compressed deployed files
+
+1. Overwrite IMAGE_FSTYPES in local.conf
+    * `IMAGE_FSTYPES = "tar.bz2 ext3.xz"`
+
+2. Overwrite SDIMG_ROOTFS_TYPE in local.conf
+    * `SDIMG_ROOTFS_TYPE = "ext3.xz"`
+
+3. Overwrite SDIMG_COMPRESSION in local.conf
+    * `SDIMG_COMPRESSION = "xz"`
+
+Accommodate the values above to your own needs (ex: ext3 / ext4).
+
+## GPU memory
+
+* `GPU_MEM`: GPU memory in megabyte. Sets the memory split between the ARM and
+  GPU. ARM gets the remaining memory. Min 16. Default 64.
+
+* `GPU_MEM_256`: GPU memory in megabyte for the 256MB Raspberry Pi. Ignored by
+  the 512MB RP. Overrides gpu_mem. Max 192. Default not set.
+
+* `GPU_MEM_512`: GPU memory in megabyte for the 512MB Raspberry Pi. Ignored by
+  the 256MB RP. Overrides gpu_mem. Max 448. Default not set.
+
+* `GPU_MEM_1024`: GPU memory in megabyte for the 1024MB Raspberry Pi. Ignored by
+  the 256MB/512MB RP. Overrides gpu_mem. Max 944. Default not set.
+
+## Add purchased license codecs
+
+To add you own licenses use variables `KEY_DECODE_MPG2` and `KEY_DECODE_WVC1` in
+local.conf. Example:
+
+    KEY_DECODE_MPG2 = "12345678"
+    KEY_DECODE_WVC1 = "12345678"
+
+You can supply more licenses separated by comma. Example:
+
+    KEY_DECODE_WVC1 = "0x12345678,0xabcdabcd,0x87654321"
+
+
+## Disable overscan
+
+By default the GPU adds a black border around the video output to compensate for
+TVs which cut off part of the image. To disable this set this variable in
+local.conf:
+
+    DISABLE_OVERSCAN = "1"
+
+## Set overclocking options
+
+The Raspberry PI can be overclocked. As of now overclocking up to the "Turbo
+Mode" is officially supported by the raspbery and does not void warranty. Check
+the config.txt for a detailed description of options and modes. Example turbo
+mode:
+
+    ARM_FREQ = "1000"
+    CORE_FREQ = "500"
+    SDRAM_FREQ = "500"
+    OVER_VOLTAGE = "6"
+
+## Video camera support with V4L2 drivers
+
+Set this variable to enable support for the video camera (Linux 3.12.4+
+required):
+
+    VIDEO_CAMERA = "1"
+
+## Enable offline compositing support
+
+Set this variable to enable support for dispmanx offline compositing:
+
+    DISPMANX_OFFLINE = "1"
+
+This will enable the firmware to fall back to off-line compositing of Dispmanx
+elements. Normally the compositing is done on-line, during scanout, but cannot
+handle too many elements. With off-line enabled, an off-screen buffer is
+allocated for compositing. When scene complexity (number and sizes
+of elements) is high, compositing will happen off-line into the buffer.
+
+Heavily recommended for Wayland/Weston.
+
+See: <http://wayland.freedesktop.org/raspberrypi.html>
+
+## Enable kgdb over console support
+
+To add the kdbg over console (kgdboc) parameter to the kernel command line, set
+this variable in local.conf:
+
+    ENABLE_KGDB = "1"
+
+## Boot to U-Boot
+
+To have u-boot load kernel image, set in your local.conf:
+
+    KERNEL_IMAGETYPE = "uImage"
+
+This will make kernel.img be u-boot image which will load uImage. By default,
+kernel.img is the actual kernel image (ex. Image).
+
+## Image with Initramfs
+
+To build an initramfs image:
+
+* Set this 3 kernel variables (in linux-raspberrypi.inc for example)
+  - kernel_configure_variable BLK_DEV_INITRD y
+  - kernel_configure_variable INITRAMFS_SOURCE ""
+  - kernel_configure_variable RD_GZIP y
+
+* Set the yocto variables (in linux-raspberrypi.inc for example)
+  - `INITRAMFS_IMAGE = "<a name for your initramfs image>"`
+  - `INITRAMFS_IMAGE_BUNDLE = "1"`
+
+* Set the meta-rasberrypi variable (in raspberrypi.conf for example)
+  - `KERNEL_INITRAMFS = "-initramfs"`
+
+## Enable SPI bus
+
+When using device tree kernels, set this variable to enable the SPI bus:
+
+    ENABLE_SPI_BUS = "1"
+
+## Enable I2C
+
+When using device tree kernels, set this variable to enable I2C:
+
+    ENABLE_I2C = "1"
+
+## Enable PiTFT support
+
+Basic support for using PiTFT screens can be enabled by adding below in
+local.conf:
+
+* `MACHINE_FEATURES += "pitft"`
+  - This will enable SPI bus and i2c device-trees, it will also setup
+    framebuffer for console and x server on PiTFT.
+
+NOTE: To get this working the overlay for the PiTFT model must be build, added
+and specified as well (dtoverlay=<driver> in config.txt).
+
+Below is a list of currently supported PiTFT models in meta-raspberrypi, the
+modelname should be added as a MACHINE_FEATURES in local.conf like below:
+
+    MACHINE_FEATURES += "pitft <modelname>"
+
+List of currently supported models:
+* pitft22
+* pitft28r
+* pitft35r
+
+## Misc. display
+
+If you would like to use the Waveshare "C" 1024×600, 7 inch Capacitive Touch
+Screen LCD, HDMI interface (<http://www.waveshare.com/7inch-HDMI-LCD-C.htm>) Rev
+2.1, please set the following in your local.conf:
+
+    WAVESHARE_1024X600_C_2_1 = "1"
+
+## Enable UART
+
+RaspberryPi 0, 1, 2 and CM will have UART console enabled by default.
+
+RaspberryPi 0 WiFi and 3 does not have the UART enabled by default because this
+needs a fixed core frequency and enable_uart wil set it to the minimum. Certain
+operations - 60fps h264 decode, high quality deinterlace - which aren't
+performed on the ARM may be affected, and we wouldn't want to do that to users
+who don't want to use the serial port. Users who want serial console support on
+RaspberryPi3 will have to explicitely set in local.conf:
+
+    ENABLE_UART = "1"
+
+Ref.:
+* <https://github.com/raspberrypi/firmware/issues/553>
+* <https://github.com/RPi-Distro/repo/issues/22>
diff --git a/docs/index.rst b/docs/index.rst
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+++ b/docs/index.rst
@@ -0,0 +1,26 @@
+.. meta-raspberrypi documentation master file, created by
+   sphinx-quickstart on Tue May 23 09:51:24 2017.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to meta-raspberrypi's documentation!
+============================================
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   readme
+   layer-contents
+   extra-build-config
+   extra-apps
+   contributing
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+
diff --git a/docs/layer-contents.md b/docs/layer-contents.md
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+# Layer Contents
+
+## Supported Machines
+
+* raspberrypi
+* raspberrypi0
+* raspberrypi0-wifi
+* raspberrypi2
+* raspberrypi3
+* raspberrypi3-64 (64 bit kernel & userspace)
+* raspberrypi-cm (dummy alias for raspberrypi)
+* raspberrypi-cm3 (dummy alias for raspberrypi2)
+
+## Images
+
+* rpi-hwup-image
+  * Hardware up image
+
+* rpi-basic-image
+  * Based on rpi-hwup-image with some added features (ex: splash)
+
+* rpi-test-image
+  * Image based on rpi-basic-image which includes most of the packages in this
+    layer and some media samples.
diff --git a/docs/readme.md b/docs/readme.md
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+++ b/docs/readme.md
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+../README.md
\ No newline at end of file