[U-Boot-Users] PPC440GX exception handler and associated text strings

[U-Boot-Users] PPC440GX exception handler and associated text strings

[sleibelt at verizon.net]

I'm having a problem with exception detection and subsequent message
display while running u-boot-1.1.2:

I'm currently running uboot-1.1.2 on a PPC440GX Ocotea evaluation board and am not seeing any exception messages (that are defined in
u-boot-1.1.2\cpu\ppc4xx\traps.c) when I force exceptions to happen (I'm particularly interested in seeing the machine check exception string and associated register dump).  What appears to be happening is the PPC just enters a loop and is no longer functioning when the exception happens.  All the registers appear to be set up correctly.

I can manually cause the exception strings to be displayed by using the 'go <handler_address>' uboot command, so I think the code built OK.

The code I am running is umodified; it is the standard uboot-1.1.2 distribution for the Ocotea board.

Does anybody have any ideas as to why I'm not seeing the exception strings when an exception occurs?

Regards,

-Scott

[U-Boot-Users] PPC440GX exception handler and associated text strings

[Wolfgang Denk]

Dear Scott,

in message <30834199.1123019099427.JavaMail.root@vms070.mailsrvcs.net> you wrote:
>
> The code I am running is umodified; it is the standard uboot-1.1.2 distribution for the Ocotea board.

We just checked in a major cleanup of the code for all  AMCC  boards;
see doc/README.AMCC-eval-boards-cleanup for details.

Please update your code and use top of tree in  CVS  instead;  alter-
natively try the pre-built image at
ftp://ftp.denx.de/pub/u-boot/images/amcc/ocotea/u-boot.bin


Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Any sufficiently advanced technology is indistinguishable from magic.
Clarke's Third Law       - _Profiles of the Future_ (1962; rev. 1973)
                  ``Hazards of Prophecy: The Failure of Imagination''