[U-Boot-Users] Stack Pointer Problem: MPC8270 Custom Board

Wolfgang Denk wd at denx.de
Mon Oct 20 20:39:10 CEST 2003

In message <102020031738.3826.73f8 at att.net> you wrote:
> I am working on an MPC8270 based custom board. u-boot is ported from EP8260
> board version. RAM is 128M, flash is 16M.
> After u-boot relocates code in the ram, sometimes, stack pointer gets
> corrupted. And sometimes, I get bus fault which overwirtes all u-boot area in
> the RAM with some pattern like this
> Any ideas.....

As usual: you RAM initialization sequence is not correct.

And yes, that's a FAQ.

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
"I've seen it. It's rubbish."          - Marvin the Paranoid Android

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