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Subject: Re: Calculating virtual address from physical address
From: Josh Boyer <jwboyer@jdub.homelinux.org>
To: Matt Porter <mporter@kernel.crashing.org>
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Date: Fri, 05 May 2006 15:58:52 -0500
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On Fri, 2006-05-05 at 13:24 -0700, Matt Porter wrote:
> 
> There are no BATs on 4xx. However, the same conceptual thing can be
> done by wiring a fixed TLB entry to cover those LEDs temporarily
> during bringup debug.  The temporary TLB entry will be wiped out by
> normal tlb misses after things are running whenever the fixed entry
> is clobbered by the round robin replacement.

At which point you should be able to call ioremap to generate a virtual
address inside a device driver or board file.

josh