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Build Instructions
==================
The following instructions require OE-Core meta and BitBake. Poky provides these
components, however they can be acquired separately.
Initialize a build using the `oe-init-build-env` script. Once initialized
configure `bblayers.conf` by adding the `meta-xilinx-bsp` and
`meta-xilinx-contrib` layer. e.g.:
BBLAYERS ?= " \
<path to layer>/oe-core/meta \
<path to layer>/meta-xilinx-bsp \
<path to layer>/meta-xilinx-standalone \
<path to layer>/meta-xilinx-contrib \
"
meta-xilinx-standalone layer provides recipes which enable building baremetal
toolchain for PMU firmware. This layer is required for ZU+ devices which
depends on PMU firmware
meta-xilinx-contrib is a contribution layer and is optional.
To build a specific target BSP configure the associated machine in `local.conf`:
MACHINE ?= "zc702-zynq7"
Build the target file system image using `bitbake`:
$ bitbake core-image-minimal
Once complete the images for the target machine will be available in the output
directory `tmp/deploy/images/<machine name>/`.
Using multiconfig to build ZU+
------------------------------
multiconfig dependency has to be added in image file or local.conf.
For example in core-image-minimal you will need
do_image[mcdepends] = "multiconfig:zcu102:pmu:pmu-firmware:do_deploy"
Add conf/multiconfig in the build directory and create pmu.conf and zcu102.conf
Add the following in pmu.conf:
MACHINE="zynqmp-pmu"
DISTRO="xilinx-standalone"
GCCVERSION="7.%"
TMPDIR="${TOPDIR}/pmutmp"
Add the following in zcu102.conf:
MACHINE="zcu102-zynqmp"
DISTRO="poky"
In local.conf multiconfig is enabled by: BBMULTICONFIG ?= "zcu102 pmu"
bitbake multiconfig:zcu102:core-image-minimal
More information about multiconfig:
https://www.yoctoproject.org/docs/current/mega-manual/mega-manual.html#dev-building-images-for-multiple-targets-using-multiple-configurations
Workaround:
There is additional workaround required in u-boot-xlnx recipe. Add the below dependency
do_compile[mcdepends] = "multiconfig:zcu102:pmu:pmu-firmware:do_deploy"
Additional Information
----------------------
For more complete details on setting up and using Yocto/OE refer to the Yocto
Project Quick Start guide available at:
http://www.yoctoproject.org/docs/current/yocto-project-qs/yocto-project-qs.html
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