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Date: Thu, 20 Oct 2005 13:21:50 -0700
From: Matt Porter <mporter@kernel.crashing.org>
To: Madhu Saravana Sibi Govindan <ssshayagriva@gmail.com>
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	from ssshayagriva@gmail.com on Thu, Oct 20, 2005 at 02:56:21PM
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Cc: linuxppc-dev@ozlabs.org
Subject: Re: PowerPC/Linux device driver question
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On Thu, Oct 20, 2005 at 02:56:21PM -0500, Madhu Saravana Sibi Govindan wrote:
> I'm not sure how to request this range of physical memory from the
> kernel. I thought I could use ioremap to map this range into the
> virtual space, but ioremap takes only an unsigned long as an argument,
> which is only 32 bits on 440GP. I don't think I can represent the range of my
> device with 32 bits.
> 
> Could someone tell me how to solve the problem? I want this range of
> physical addresses to be associated with my device driver and how do I
> do that?

Use the ppc-specific ioremap64() call. 

-Matt