[U-Boot-Users] data abort
Wolfgang Denk
wd at denx.de
Mon Sep 15 13:29:13 CEST 2003
Hello,
in message <3F659CD2.1040102 at gmx.de> you wrote:
>
> Now, I've a new problem: When U-Boot starts I can see following outsputs
> through "cu", before the system stops due to a data abort.
...
> U-Boot code: A1FE0000 -> A1FF5728 BSS: -> A1FF6BD4
> DRAM Configuration:
> Bank #0: a0000000 32 MB
> Flash: 32 MB
> data abort
> undefined instruction
> undefined instruction
> undefined instruction
There is a 99.99% likelyhood of SDRAM error.
> If I understand right, this exception occurs due to access to the
> contents of the created list. For example at the line(lists.c:
Most probably it occurs because you are reading garbage from RAM.
> Why does this happen? I'm quite sure that my Flash and SDRAM are working
> properly. Can somebody suggest a way to workaround this problem?
Fix your SDRAM initialization.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
There are very few personal problems that cannot be solved through a
suitable application of high explosives.
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