[U-Boot-Users] IVT on 405GP

Stefan Roese stefan.roese at esd-electronics.com
Wed Apr 16 14:05:41 CEST 2003

Hi Jerry!

Please find attached a binary file with a memory dump (address
0x0000--0x3fff) of our CPCI-405 board (PPC405GP based). I initialized the
memory with 0xaa and then started U-Boot. You can see, which memory
locations are written (with exception vector code) from U-Boot.

Hope this helps...

Best regards,

> If someone out there has a 405GP running with
> u-boot, I'd really appreciated a snapshot of the
> interrupt vector table.  It appears that though
> the vector and and the int return vector are
> getting copied, however if prior to running u-boot
> I zero out all memory in the IVT, I see that not
> Prologue code etc is getting coping into those ares.
> If I look at "trap_init" it appears as though it
> does not copy code, and only sets vectors.
> If I look at "relocate_code" it appears as though
> it only starts to copy code from the top of the boot
> rom to the end.  I do not see where the interrupt vectors
> are stored in the bootrom - although they must - so
> I must be missing a simple calculation someplace -
> Any assistance is greatly appreciated.
> Jerry Walden
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