[U-Boot-Users] Data abort while mtest

[Praveen V.S.]

Thanks for your suggestions, 
We tried with the CFG_MEMTEST_SCRATCH giving it A1FFFFFC.
But again the same problem..., Data Abort....

My Ram is 32 MB...& so the RAM is from A0000000 to A2000000 
Is there anything wrong in the RAM Configuration.?. 
But I am able to properly write to different location using mw & 
display it by using md 
My U-boot is from A07E0000 -> A07F59D8..

What might be the problem ?

Regards
Praveen

-----Original Message-----
From: u-boot-users-admin at lists.sourceforge.net
[mailto:u-boot-users-admin at lists.sourceforge.net] On Behalf Of Anders
Larsen
Sent: Thursday, December 16, 2004 3:21 PM
To: praveen at spacomp.com
Cc: u-boot-users at lists.sourceforge.net
Subject: Re: [U-Boot-Users] Data abort while mtest


praveen at spacomp.com schreibt:
>We have successfuuly configured U-boot for our custom board based on 
>PXA255. The Board is having 32 MB ram. I am able to sucessfully run the
>coimmands, md, mw etc..
>But if I give mtest( CFG_ALT_MEMTEST is defined) I am getting dataabort

Hi,
on ARM (including PXA), you MUST set CFG_MEMTEST_SCRATCH to
a valid RAM address (outside the area to be tested, e.g.
the last 32-bit word of your RAM), otherwise the memtest
will try to write to address 0 (which is flash).

To quote the README:
"- CFG_MEMTEST_SCRATCH:
      Scratch address used by the alternate memory test
      You only need to set this if address zero isn't writeable"

Cheers
 Anders



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