Hi Rob, On Tue, 1 Dec 2020 at 04:11, Rob Herring <robh@xxxxxxxxxx> wrote: > > Is there a good way to describe this? I think maybe the memory mapped > > area should be another node (syscon?) and that should be referenced in > > the driver node and the driver node itself nested in the riu simple > > bus where the registers are. > > There's not really a better way. I would stick with 'reg' and not a > syscon. Unless you restrict the address space with 'ranges' nothing > prevents having the above. The main thing we want to avoid is having > the same address used (in 'reg') by multiple nodes. Ok, I'll go for a node with 'reg' that the driver node references. The simple bus the registers are in does now have a range that doesn't include where the memory mapped region is. Thank you for the input. Daniel
