linux-kernel - Re: [PATCH] Prevent legacy io access on pmac

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Date:	Mon, 11 Sep 2006 17:52:39 +0200
From:	Olaf Hering <olaf@...fle.de>
To:	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	Daniel Quinlan <quinlan@...hname.com>,
	Vojtech Pavlik <vojtech@...e.cz>
Subject: Re: [PATCH] Prevent legacy io access on pmac

On Mon, Sep 11, Olaf Hering wrote:

> 
> The ppc32 common config runs also on PReP/CHRP, which uses PC style IO
> devices.  The probing is bogus, it crashes or floods dmesg.
> 
> ppc can boot one single binary on prep, chrp and pmac boards.
> ppc64 can boot one single binary on pseries and G5 boards.
> pmac has no legacy io, probing for PC style legacy hardware leads to a
> hard crash:

drivers/input/touchscreen/mk712.c pokes at 0x262 and other IO ports.
A comment in the driver suggests that it is only used on Gateway
computers. Should the driver be X86 only?
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