[U-Boot-Users] LITE5200 board: Bus Fault with 2 network cards

[Olivier Singla]

Wolfgang Denk wrote:

>In message <40F344F1.1000603 at singla.us> you wrote:
>  
>
>>I use a Lite5200 board (ref. board from Motorola). With the two PCI network
>>cards I tried (which I would want to use under Linux 2.4.25), u-boot 
>>crashes:
>>    
>>
>
>Try to debug this. It would be interesting to know  where  the  crash
>happens.
>  
>
Can I debug it without a jtag debugger ?
How could I use GDB ?

>  
>
>>Is there a known issue with the PCI on the MPC5200, and more specifically
>>    
>>
>
>There is the known timing problems.
>  
>
I changed the PCI to run at 66 Mhz. Then, one network card which was always
causing a u-boot crash (with the PCI at 33 Mhz) was sometimes correctly 
detected
(one one 3 or 4 attempts). So things are not really better...

>  
>
>>with PCI network cards ?
>>Or is-that with the u-boot PCI implementation for this board ?
>>    
>>
>
>I don;t think so,. We used several  network  cards  on  the  LITE5200
>without  problem (the most reliable card on all test systems seems to
>be the EEPRO100).
>  
>

Thanks for this information.

>  
>
>>I tried to disable the PCI from the u-boot/IceCube config file,
>>but then u-boot hangs up...
>>    
>>
>
>Are you sure? Where does it hang?
>  
>
My mistake, sorry...

Thanks,
Olivier Singla

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