TS i.MX6 Yocto Zeus Build Instructions: Difference between revisions
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= Prerequisites = | = Prerequisites = | ||
This will change depending on your system. Refer to the Yocto documentation for more information, but for building from Debian Buster or Ubuntu Bionic (18.04) these are the required apt-get | This will change depending on your system. Refer to the Yocto documentation for more information, but for building from Debian Buster or Ubuntu Bionic (18.04) these are the required packages to install from <source lang=bash inline>apt-get</source>: | ||
<source lang=bash> | <source lang=bash> | ||
sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential chrpath socat libsdl1.2-dev xterm curl | sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential chrpath socat libsdl1.2-dev xterm curl | ||
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source sources/poky/oe-init-build-env | source sources/poky/oe-init-build-env | ||
</source> | </source> | ||
The source command must be run in any new terminal before running bitbake commands. The MACHINE exports must be set before running the source command. | The source command must be run in any new terminal before running bitbake commands. The <source lang=bash inline>*MACHINE</source> exports must be set before running the source command. | ||
Next replace the newly generated contents of conf/bblayers.conf with the following in order to specify all of our used layers: | Next replace the newly generated contents of conf/bblayers.conf with the following in order to specify all of our used layers: |
Revision as of 16:34, 23 March 2020
Recommended reading
Prerequisites
This will change depending on your system. Refer to the Yocto documentation for more information, but for building from Debian Buster or Ubuntu Bionic (18.04) these are the required packages to install from apt-get
:
sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential chrpath socat libsdl1.2-dev xterm curl
We recommend using a 64-bit Linux distribution to build Yocto.
Build Yocto
To get started, install repo
. repo
is a tool for downloading and updating a set of git repositories.
mkdir ~/bin
curl http://commondatastorage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo
export PATH=${PATH}:~/bin
Check out our BSP:
mkdir ts-bsp
cd ts-bsp
repo init -u https://github.com/embeddedarm/ts-oe-bsp.git -b zeus
repo sync # This can take some time as it depends on internet connection speeds.
Once it is downloaded the environment needs to bet set up:
## The SDK will default to the architecture of the build system
## or you can override it with one of the following:
#export SDKMACHINE="x86_64"
#export SDKMACHINE="i686"
export MACHINE="tsimx6"
source sources/poky/oe-init-build-env
The source command must be run in any new terminal before running bitbake commands. The *MACHINE
exports must be set before running the source command.
Next replace the newly generated contents of conf/bblayers.conf with the following in order to specify all of our used layers:
# POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf # changes incompatibly POKY_BBLAYERS_CONF_VERSION = "2" BBPATH = "${TOPDIR}" BSPDIR := "${@os.path.abspath(os.path.dirname(d.getVar('FILE', True)) + '/../..')}" BBFILES ?= "" BBLAYERS ?= " \ ${BSPDIR}/sources/poky/meta \ ${BSPDIR}/sources/poky/meta-poky \ ${BSPDIR}/sources/poky/meta-yocto-bsp \ ${BSPDIR}/sources/meta-freescale \ ${BSPDIR}/sources/meta-freescale-3rdparty \ ${BSPDIR}/sources/meta-freescale-distro \ ${BSPDIR}/sources/meta-openembedded/meta-oe \ ${BSPDIR}/sources/meta-openembedded/meta-python \ ${BSPDIR}/sources/meta-openembedded/meta-multimedia \ ${BSPDIR}/sources/meta-openembedded/meta-gnome \ ${BSPDIR}/sources/meta-openembedded/meta-networking \ ${BSPDIR}/sources/meta-ts \ ${BSPDIR}/sources/meta-qt5 \ "
The image can now be built. Our default image is named ts-x11-image
.
# Build our common image with X11/QT support
bitbake ts-x11-image
# Build a toolchain with QT support
bitbake meta-toolchain-qt5
After the build has finished, the output files will be available in "tmp/deploy/images/tsimx6". Use gparted
or other preferred partitioning tool to create an MBR partition table with a single partition on an SD card. Once created, the SD card can be mounted and the rootfs tarball can be unpacked to the device. For example, assuming "/dev/sdc" is the SD card:
sudo mkdir /mnt/sd
sudo mkfs.ext3 /dev/sdc1
sudo mount /dev/sdc1 /mnt/sd
sudo tar -xf ts-x11-image-tsimx6.tar.bz2 -C /mnt/sd
sudo umount /mnt/sd/
sync
Updating the distribution
Occasionally we will make updates to Yocto. These changes can be synced and merged together rather than rebuilding everything from the start:
# Add 'repo' to $PATH
export PATH=${PATH}:~/bin
cd ts-bsp
repo sync
export MACHINE="tsimx6"
source sources/poky/oe-init-build-env
# Regenerate image
bitbake ts-x11-image
The build system will build or rebuild only the necessary packages for the change rather than starting over. The output image will have all of the latest updates from us and other included layers.