With so many layers, manually cloning each of them and adding them to your project's conf/bblayers.conf file is cumbersome. The community uses the repo tool developed by Google for their community Android to simplify the installation of Yocto.

To install repo in your host system, type in the following commands:

$ mkdir -p ${HOME}/bin/
$ curl https://storage.googleapis.com/git-repo-downloads/repo >  
  ${HOME}/bin/repo$ chmod a+x ${HOME}/bin/repo

The repo tool is a Python utility that parses an XML file, called manifest, with a list of Git repositories. The repo tool is then used to manage those repositories as a whole.

For an example, we will use repo to download all the repositories listed in the previous recipe to our host system. For that, we will point it to the FSL community BSP manifest for the Rocko release:

<?xml version="1.0" encoding="UTF-8"?> 
<manifest> 
 
  <default sync-j="4" revision="master"/> 
 
  <remote fetch="https://git.yoctoproject.org/git" name="yocto"/> 
  <remote fetch="https://github.com/Freescale" name="freescale"/> 
  <remote fetch="https://github.com/openembedded" name="oe"/> 
 
  <project remote="yocto" revision="rocko" name="poky" path="sources/poky"/> 
  <project remote="yocto" revision="rocko" name="meta-freescale" path="sources/meta-freescale"/> 
 
  <project remote="oe" revision="rocko" name="meta-openembedded" path="sources/meta-openembedded"/> 
 
  <project remote="freescale" revision="rocko" name="fsl-community-bsp-base" path="sources/base"> 
    <linkfile dest="README" src="README"/> 
    <linkfile dest="setup-environment" src="setup-environment"/> 
  </project> 
 
  <project remote="freescale" revision="rocko" name="meta-freescale-3rdparty" path="sources/meta-freescale-3rdparty"/> 
  <project remote="freescale" revision="rocko" name="meta-freescale-distro" path="sources/meta-freescale-distro"/> 
  <project remote="freescale" revision="rocko" name="Documentation" path="sources/Documentation"/> 
 
</manifest> 

The manifest file shows all the installation paths and repository sources for the different components that are going to be installed.

The manifest file is a list of the different layers that are needed for the FSL community BSP release. We can now use repo to install it. Run the following:

$ mkdir /opt/yocto/fsl-community-bsp$ cd /opt/yocto/fsl-community-bsp$ repo init -u https://github.com/Freescale/fsl-community-bsp-platform -b rocko$ repo sync

To list the hardware boards supported by the different layers, we may run:

$ ls sources/meta-freescale*/conf/machine/*.conf

And to list the newly introduced target images, use the following:

$ ls sources/meta-freescale*/recipes*/images/*.bb

The FSL community BSP release introduces the following new target images:

The release includes a sources/Documentation repository with buildable documentation. To build, we first need to install some host tools as follows:

$ sudo apt-get install libfreetype6-dev libjpeg8-dev python3-dev python3-pip python3-sphinx texlive-fonts-recommended texlive-latex-extra zlib1g-dev fonts-liberation                                                         $ sudo pip3 install reportlab sphinxcontrib-blockdiag

And then we can build the different documents by entering its sub-directory, and build an HTML document with:

$ make singlehtml

Or a PDF version with:

$ make latexpdf

For example, to build the release notes in both HTML and PDF versions we do:

$ cd /opt/yocto/fsl-community-bsp/sources/Documentation/release-notes$ make latexpdf singlehtml

The documents can be found inside the build/latex and build/singlehtml directories.