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SubjectRe: reserve legacy io regions on powermac
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On Wed, 2004-07-21 at 05:12, Olaf Hering wrote:
> Anton pointed this out.
>
> ppc32 can boot one single binary on prep, chrp and pmac boards.
> pmac has no legacy io, probing for PC style legacy hardware leads to a
> hard crash.
> Several patches exist to prevent serial, floppy, ps2, parport and other
> drivers from probing these io ports.
> I think the simplest fix for 2.6 is a request_region of the problematic
> areas.
> PCMCIA is still missing.
> I found that partport_pc.c pokes at varios ports, without claiming the
> ports first. Should this be fixed?
> smsc_check(), winbond_check(), winbond_check2()

Note that this is still all workarounds... Nothing prevents you (and some
people actually do that) to put a PCI card with legacy serial ports on it
inside a pmac....

Ben.


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