Re: debian boot CDs & G5

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

> Yuck. How about something that doesn't look so PowerPC-specific?
> You're contaminating non-arch drivers with arch-specific code.
> 
> if(has_isa_bus)
>         return -ENODEV;
> 
> Better yet, find a way to flag the driver init functions
> so that they don't even execute until an ISA bus is found.

Actually, it's a bit nastier, since we have cases like 8250 serial
which we still want to be able to use on pmac for pcmcia... (Though
I think with the current version, the simple fact of loading the
driver it starts tapping those legacy IOs...)

has_isa_bus may not perfectly exact (a pmac will not have an ISA bus,
but you can have a legacy serial card on the PCI bus, or you can
have a 8250 compatible uart on a non-ISA bus).

At this point, this is a real can of worms.

Ben.