On Tue, Jun 10, 2025 at 06:23:33PM +0200, Casey Connolly wrote: > Since we're using the upstream file structure, we know at build time > the path to each DTB that we build. These same paths are used relative > to some (maybe version specific) dtb directory on the boot partition > or ESP. > > By recording this path at build time and embedding it into the > devicetree, we can set the fdtfile environment variable with 100% > certainty that it is correct. > > Devicetree file names are already treated as stable kernel API upstream, > since they are used by OS loaders extensively. > > Embedding the path into the devicetree itself just simplifies the > process and allows U-Boot or the OS loader to select a devicetree of a > different version for the specific board that U-Boot is running on. > > Signed-off-by: Casey Connolly <casey.conno...@linaro.org>
My biggest and really only problem is that you need to work with https://github.com/devicetree-org/dt-schema and to get the chosen.yaml updated with fdtfile and then we can go ahead and do whatever that resulting discussion is. -- Tom
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