Quentin Schulz <foss+uboot@0leil.net> says:
This does a bit of "cleanup" by reusing constants for some FIT
properties instead of having the same string in multiple places.
Additionally, this adds a new constant for the compatible property in
FIT configuration nodes[1] which is useful for FIT images with multiple
FIT configuration nodes to support multiple devices in the same blob.
U-Boot will try to figure out which node to select based on that
compatible[2].
However, if this property is missing (and the first blob in the fdt
property of the configuration node is uncompressed), the compatible from
the root node of the associated kernel FDT will be used for the
autoselection mechanism. For now, I only print the property if it
exists, but maybe it'd make sense to expose the fallback one if it's
missing. I guess we can implement that later on if desired.
[1] https://fitspec.osfw.foundation/#optional-properties compatible paragraph
[2] https://fitspec.osfw.foundation/#select-a-configuration-to-boot
Link: https://lore.kernel.org/r/20251203-fit-compat-v2-0-0fea56f23809@cherry.de
a333d9e59f