DTB binding for FCONF properties

This document describes the device tree format of FCONF properties. These properties are not related to a specific platform and can be queried from common code. Dynamic configuration

The FCONF framework expects a dtb-registry node with the following field:

  • compatible [mandatory]
    • value type: <string>

    • Must be the string “fconf,dyn_cfg-dtb_registry”.

Then a list of subnodes representing a configuration DTB, which can be used by FCONF. Each subnode should be named according to the information it contains, and must be formed with the following fields:

  • load-address [mandatory]
    • value type: <u64>

    • Physical loading base address of the configuration.

  • max-size [mandatory]
    • value type: <u32>

    • Maximum size of the configuration.

  • id [mandatory]
    • value type: <u32>

    • Image ID of the configuration.

  • ns-load-address [optional]
    • value type: <u64>

    • Physical loading base address of the configuration in the non-secure memory. Only needed by those configuration files which require being loaded in secure memory (at load-address) as well as in non-secure memory e.g. HW_CONFIG