bdi2000 debugging
Sylvain Munaut
tnt at 246tNt.com
Thu Feb 17 10:44:46 EST 2005
>>The bad news : AFAIK you can't fix it :(
>>
>>There is a bug in the rev <= 1.2 of the silicon of MPC5200 : When there
>>is another XLB Master active (like USB or any bestcomm activity), the XLB
>>arbiter can get confused during debugging and you can resume nor
>>can you access memory or do anything ... you can just reboot.
>>
>>
>
>Hmm, this is not good. :(
>
>
No kidding ;)
>How can I determine the silicon rev.?
>I'll look it up in the docs.
>
>
L25R marking on the top means rev 1.2 IIRC. That's the one I have. Also,
if you have a
rev 2, you're lucky, I'd like one ;)
>>It's VERY frustrating since the BDI2000 is then kind of useless for debug
>>in the cases when you need those activated ...
>>
>>
>
>So I have to disable USB (can live without it for debugging), bestcomm
>(hmm, how can I use console on serial port then?) and what else?
>
>
Serial port console is OK the drivers I know don't use bestcomm. But
USB, Ethernet, IDE, Codec, ....
Sylvain
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