Adding Layers - 2023.2 English

PetaLinux Tools Documentation: Reference Guide (UG1144)

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2023.2 English
You can add layers to the PetaLinux project. The upstream layers for the Langdale version of Yocto can be found at +.

The following steps demonstrate how to add the meta-my layer into the PetaLinux project.

  1. Copy or create a layer in <proj_root>/project-spec/meta-mylayer.
  2. Run petalinux-config > Yocto Settings > User Layers.
  3. Enter the following:
  4. Save and exit.
  5. Verify by viewing the file in <proj_root>/build/conf/bblayers.conf.
Note: The 2023.2 release of the PetaLinux tool is on the Langdale baseline. Choose the layers/recipes from the Langdale branch only. Some of the layers/recipes might not be compatible with the current architecture. You are responsible for all additional layers/recipes.
Note: You can also add a layer that is outside your project; such layers can be shared across projects. Ensure that the added layer has <layer>/conf/layer.conf; otherwise, it causes build errors.
Important: If you want to change the layer priority, you can update ${PROOT}/project-spec/meta-mylayer/conf/layer.conf to set BBFILE_PRIORITY_meta-mylayer = 7 (0 to 99, higher values have higher priority).
Note: By default, the meta-user layer in the PetaLinux project has a PRIORITY of 7. To override or use the meta-user changes before the custom layer changes, use a PRIORITY level that is equivalent or higher than meta-user. For more information, see Support.