[U-Boot-Users] BDI3000 and PPC460GT board

[vb]

On Wed, Jul 9, 2008 at 11:40 AM, Stefan Roese <sr at denx.de> wrote:
> Hi Vadim,
>
> On Wednesday 09 July 2008, vb wrote:
>> I am trying to control the amcc glacier (evkit460gt) eval board with a
>> BDI3000, using the config file from
>> ftp://78.31.64.234/bdigdb/config/powerpc/ppc4xx/ppc440/evkit460gt.cfg
>> (modulo my local IP/tftp configuration).
>
> I attached my local version for you. Perhaps this works better. It works here
> fine on my Glacier.
>

Stefan, this works like a charm, thank you so much for a prompt reply!

cheers,
\vb

>> The problem is that the board fails to run under the BDI control, and
>> runs just fine without it.
>>
>> When looking closer I see that the bdi resets the board properly and
>> takes it all the way to the point where the TLBs are set and the rfi
>> instruction is executed to jump out of the original 4k window. At this
>> point a TLB exception is thrown, that is it loos like TLB programming
>> 'did not take' while under BDI control. So, if I just reset the board
>> and let it run, it keeps cycling through TLB error exception as no
>> memory other than the top 4k bytes is accessible. Again, it works just
>> fine without the BDI.
>>
>> Any hints and suggestions will be highly appreciated,
>
> What command are you using to "control" the PPC? "reset halt" will run you
> initialization from the script and halt the PPC. "reset run" will skip this
> init and give just run the PPC (hopefully to the U-Boot prompt).
>
> Best regards,
> Stefan
>
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