On Mon, Jun 22, 2020 at 11:12:40AM -0300, Walter Lozano wrote: > Hi Tom, > > On 19/6/20 18:48, Tom Rini wrote: > > On Fri, Jun 19, 2020 at 06:11:36PM -0300, Walter Lozano wrote: > > > > > Based on several reports and discussions it is clear that U-Boot's > > > footprint is always a concern, and any kind of reduction is an > > > improvement. > > > > > > This series is a proposal to help reducing the footprint by parsing > > > information provided in DT and drivers in different ways and adding > > > additional intelligence to dtoc. The current version implements the basic > > > functionality in dtoc but this is no fully integrated, however it will > > > allow > > > us to discuss this approach. > > > > > > Firstly, based on the compatible strings found in drivers, include only > > > DT nodes > > > which are supported by any driver present in U-Boot. > > > > > > Secondly, generate struct udevice_id entries only for nodes present in DT, > > > which will allow to avoid including additional data. > > > > > > These are the first steps for further improvements as proposed in the > > > specific > > > patches in this series. > > > > > > This work is based on the work of Simon Glass present in [1] which adds > > > support to dtoc for parsing compatible strings. > > > > > > [1] https://gitlab.denx.de/u-boot/custodians/u-boot-dm/-/tree/dtoc-working > > I applied this series on top of the above tree, but there's no rule for > > <generated/compatible.h> so is something missing? Thanks! > > > Thanks for taking the time to check this RFC. > > As you pointed, the Makefile needs to be tweaked in order to be able to run > a build, that is what I meant by "not fully integrated", also some > additional stuff are missing. However, I thought that sending this RFC > explaining the idea will be nice in order to confirm if the approaches > proposed make sense for the community and at least the one to handle > compatible strings is different from the linker list suggestion.
I think I like the idea, but I need to give a build a spin and poke things harder. What do I need to do to manually have this build+link? Thanks! -- Tom
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