440GX MMU problem

[Barbier, Renaud (GE Infrastructure)]

the memory test from U-boot does not complain as well as vxWorks.

I will do my own test anyway.

-----Original Message-----
From: Eugene Surovegin [mailto:ebs at ebshome.net]
Sent: Friday, December 03, 2004 5:40 PM
To: Barbier, Renaud (GE Infrastructure)
Cc: linuxppc-embedded at ozlabs.org
Subject: Re: 440GX MMU problem


On Fri, Dec 03, 2004 at 06:12:31AM -0600, Barbier, Renaud (GE Infrastructure) wrote:
> 
> I am using linux 2.4.26 on a 440GX with 512MB of SDRAM.
> >From U-boot I can see the whole memory.
> If I boot Linux, unless I set the boot parameter mem=256M (or less).
> it will not boot. Linux does not seem to go further than the MMU_setup.
> 
> Any idea why it cannot use 512MB?

Incorrect SDRAM setup? Try running at least simple memory tests.

--
Eugene