On Thu, Jan 19, 2023 at 11:57:44AM -0500, Tom Rini wrote: > > But it's also true that at run-time, within U-Boot, we can modify the > device tree we have, with live tree yes? So, the whole series in > question here can be done without modifying the base DT and getting in > to the further discussions that doing so entails. The assertion is that > the software discoverable bus here is sufficient to not need DT, so, OK, > lets go.
OK, may be I am not up-to-date on the U-Boot. IIUC, the modifications done in the DT by U-Boot is mostly for consumption by the next stage loader/OS and not for self-consumption. But if it is for self consumption, then good. It helps especially for the subnodes(as Simon referred) or the partitions that can be discovered at run-time using FF-A interface. As mentioned I am not again DT, it is just not needed and especially for subnodes it could result in inconsistency b/w what is in DT and what the firmware provides. As mentioned in previous response, having a simple node that Simon provided as example earlier is fine by me if that is the only option to make progress as I just feel it is redundant and one can say not scalable(but that is debatable again 😄). In short, I am not concerned about having simple node, just don't like to see entire FF-A bus enumerated in DT as subnodes for reasons mentioned already. -- Regards, Sudeep
