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None PCMCIA on PowerPC is problematic 

Forum: Non-x86 PCMCIA Issues
Re: Question Panic on card insert on ppc g3, 3.1.11 / 2.2.x (Wim Lewis)
Date: 2000, Feb 22
From: David Hinds <dhinds@pcmcia.sourceforge.org>

PCMCIA setup on PowerBooks is sketchy, because I can't test it and get
very little feedback from users.

Only a subset of PCMCIA drivers have had any testing on PowerPC
systems.  The supported-cards list shows which drivers are reported to
work on PowerPC; I have not heard that the Wavelan driver works.  It
may be ok, or it may have big-endian/little-endian issues that need to
be sorted out.

/etc/pcmcia/config.opts also needs to be configured specially.  I
would try changing the default memory and IO port windows to something
like:

    include memory 0x80000000-0x80ffffff
    include port 0x100-0x1ff

(remove the 0xc0000-0xfffff memory window, and the other IO port
windows), and see if that works any better, at least for the modem
card.

-- Dave

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