On Wed, Aug 31, 2022 at 03:32:25PM +0200, Linus Walleij wrote: > On Tue, Aug 30, 2022 at 9:58 AM Davide Ciminaghi <ciminaghi@xxxxxxxxx> wrote: > > > the sta2x11 was a chip containing AMBA peripherals and a PCIe to AMBA bridge > > (it is still in production as far as I know, but deprecated for new designs). > > It would typically be installed on x86 machines, so you needed to build and > > run AMBA drivers in an x86 environment. The original drivers we started from > > had platform data, but then we were told to switch to DTS. > > For the record I think that was bad advice, I hope it wasn't me. > But the world was different back then I suppose. > Adding DTS to x86 which is inherently ACPI is not a good idea. > Especially if you look at how SBSA ACPI UARTS were done > in drivers/tty/serial/amba-pl011.c. > now that I think of it, ACPI was also listed as a possible choice, but the problem was that we didn't know much about ACPI, and took the DTS way. So there was no bad advice, just fear of the unknown :-) Thanks Davide
