README: Add information related to multiconfig
Add information related to multiconfig
@@ -11,9 +11,14 @@ configure `bblayers.conf` by adding the `meta-xilinx-bsp` and
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`:
@@ -27,6 +32,36 @@ Build the target file system image using `bitbake`:
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
----------------------
