From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jerry Van Baren <gerald.vanbaren@smiths-aerospace.com>
Date: Fri, 17 Feb 2006 16:14:28 -0500
Subject: [U-Boot-Users] PPC8xx chip select configuration at startup
In-Reply-To: <20060217204822.80970353A86@atlas.denx.de>
References: <20060217204822.80970353A86@atlas.denx.de>
Message-ID: <43F63CB4.8060300@smiths-aerospace.com>
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To: u-boot@lists.denx.de

Wolfgang Denk wrote:
> In message <43F6091D.7040901@paulidav.org> you wrote:

[snip]

>>> The desired location for FLASH memory will be at 0x0400_0000. This is 
>>> the address space to which I link U-Boot.
>>>
>> That's OK. It will simply limit your SDRAM size to 64M.
> 
> And my cause other problems as well. Don't do it. Map flash at a high
> address.

Just to be explicit: you _must_ map your flash _well_above_ 0xC000_0000 
(the start of the linux kernel area) if you want to run linux.

Since _you_ control BR0 (don't listen to them hardware engineers), you 
can put it anywhere you want.  0xFF00_0000 is a good spot.  0xFFF0_0000 
is not as good of a spot because it limits you to 16MB of flash.  Think 
big. ;-)

> Best regards,
> 
> Wolfgang Denk

Best regards,
gvb