[ECOS] Net crasch on mpc850

[Daniel Lidsten]

Hi,

This was a very good tip. I havent tried it yet so i dont know if it was
the reason for my crasches. However, i can find the below *_INVALIDATE
on two places. As you mentioned it is located in the *_send function but
also in the quicc_eth_recv function. Should it be replaced with _FLUSH
there too?

Regards, Daniel

> There was a bug in SCC ethernet driver that mistakenly 
> invalidated data cache for the transmit buffer instead of 
> flushing it: search for line
> 	HAL_DCACHE_INVALIDATE(txbd->buffer, txbd->length);
> in file devs/eth/powerpc/quicc/current/src/if_quicc.c,
> it should be replaced with
> 	HAL_DCACHE_FLUSH(txbd->buffer, txbd->length);
> I'm not sure if this has been fixed in the CVS repository lately.
> 
> The SMC serial driver handles the cache correctly.
> 
> -lq
> 

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