[Trac #641] Debug port(80h) need open firmware support.

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#641: Debug port(80h) need open firmware support.
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 Reporter:  chiaying.lin         |        Owner:  rsmith 
     Type:  defect               |       Status:  new    
 Priority:  normal               |    Milestone:  BTest-2
Component:  ofw - open firmware  |   Resolution:         
 Keywords:                       |  
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Changes (by wmb at firmworks.com):

  * owner:  wmb at firmworks.com => rsmith

Comment:

 Ted replied and said that a connector will be added to the hardware so
 that Quanta's existing LPC port 80 debug dongles can be used.

 So what we need to do is to make a list of the existing writes to port 80
 in the LinuxBIOS early startup code, describing which init phase they
 represent.  We also need to add some port 80 writes to the OFW startup
 code and document them similarly.

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Ticket URL: <http://dev.laptop.org/ticket/641#comment:2>
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