Re: Stability of MPC5200 FEC

In message [ref] you wrote:

quoted

had before the Platform Device rework. But the problem is that we are
experiencing that the FEC stops working after a long uptime.

Did you ever observe that behavior on a lite5200 ?
What is 'long uptime' and do you have sustained transfer during that
period ? (To try reproduice the problem).

This is a well-known problem,  I'm  afraid.  To  trigger  it,  it  is
usually  (*)  sufficient to transfer a large file (700 MB or so) over
FTP to the target. Note that I've  encountered  the  problem  in  the
context of the 2.4 kernel.

(*) In some cases you can run several such transfers in a row without
problem. Power-cycling the board will bring it back to "normal" mode.

It's probably Bestcomm related. See  the  previous  discussions  with
Freescale about known issues with the 2.6 Bestcomm code.

Also, what are the 'symptoms' ? (anything in dmesg ?)

No, nothing.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
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