Example: OpenAMP RPU Zephyr Firmware on VEK385 RevB - Example: OpenAMP RPU Zephyr Firmware on VEK385 RevB - 2026.1 English - UG1186

Libmetal and OpenAMP User Guide (UG1186)
Document ID
UG1186
Release Date
2026-06-24
Version
2026.1 English

Firmware Recipe

EDF provides a firmware packaging recipe for the OpenAMP RPU Zephyr demo: https://github.com/Xilinx/meta-xilinx/blob/rel-v2025.2/meta-xilinx-standalone-sdt/recipes-applications/openamp-fw/openamp-zephyr-demo.bb 
meta-xilinx-standalone-sdt/
└── recipes-applications/
    └── openamp-fw/
        └── openamp-zephyr-demo.bb
This recipe declares a multiconfig dependency on the firmware build:
FW_MCDEPENDS = "mc::${MACHINE}-${TARGET_MC}:zephyr-openamp-rpmsg-multi-srv:do_deploy"

This dependency means:

  • Yocto builds the firmware under a specific multiconfig.
  • Yocto deploys the firmware output.
  • The Linux-side package knows where to find and install it.

Enable the Firmware Package

Add the firmware package to your image in local.conf:
IMAGE_INSTALL:append = " openamp-zephyr-demo "

Build the Image

Use a MACHINE that defines the required firmware multiconfigs.

For VEK385 RevB, run the following:

MACHINE=versal-2ve-2vm-vek385-revb-sdt-seg bitbake edf-linux-disk-image

What Happens During the Build

  1. Yocto starts the Linux image build.
  2. Yocto pulls openamp-zephyr-demo into the image.
  3. Yocto builds the dependent firmware recipe under its target multiconfig.
    • In this case, Yocto targets RPU0, cluster 0, running Zephyr.
  4. Yocto deploys the firmware binary.
  5. openamp-zephyr-demo packages the firmware in a known location.
  6. edf-linux-disk-image installs the firmware package into the rootfs.

You do not need manual steps beyond selecting the correct MACHINE and enabling the package.