[Trac #309] v20 EC breaks PS2 ports on atest.

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#309: v20 EC breaks PS2 ports on atest.
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 Reporter:  warp      |        Owner:  ray.tseng at quantatw.com
     Type:  defect    |       Status:  new                   
 Priority:  low       |    Milestone:  BTest-1               
Component:  hardware  |   Resolution:                        
 Keywords:            |  
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Comment (by warp):

 Added data for maybe later tracking down of the bug.

 The problem is _not_ caused by setting EC register FC83 to FF on atest,
 forcing that with the older EC code still lets stuff work just fine, so
 it's something more interesting.

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Ticket URL: <http://dev.laptop.org/ticket/309#comment:2>
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