#1644 NORM BTest-4: USB port 1-1 timeouts after warm boot when devices are plugged in

[Zarro Boogs per Child]

#1644: USB port 1-1 timeouts after warm boot when devices are plugged in
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  Reporter:  JordanCrouse         |       Owner:  wmb at firmworks.com      
      Type:  defect               |      Status:  new                    
  Priority:  normal               |   Milestone:  BTest-4                
 Component:  ofw - open firmware  |     Version:  OFW development version
Resolution:                       |    Keywords:                         
  Verified:  0                    |  
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Changes (by wmb at firmworks.com):

  * owner:  dilinger => wmb at firmworks.com
  * version:  Git as of bug date => OFW development version
  * component:  kernel => ofw - open firmware

Comment:

 I can reproduce this sometimes in OFW - the wlan fails to enumerate
 sometimes.

 When it is failing, I can make it start working by resetting that USB port
 by with the 0x100 bit of the EHCI PORTSC register.  But pulsing the
 WLAN_RESET# signal via the EC GPIO pin does not make it work.

 This suggests to me that the WLAN is remaining active and the firmware
 startup code is not doing enough to get its attention.

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Ticket URL: <http://dev.laptop.org/ticket/1644#comment:2>
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