#12096 BLOC 4-firmw: XO-4 Q7A13 audio test impulse response flatlined with loopback cable

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#12096: XO-4 Q7A13 audio test impulse response flatlined with loopback cable
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           Reporter:  Quozl                |       Owner:  Quozl                            
               Type:  defect               |      Status:  new                              
           Priority:  blocker              |   Milestone:  4-firmware                       
          Component:  ofw - open firmware  |     Version:  Development build as of this date
         Resolution:                       |    Keywords:                                   
        Next_action:  diagnose             |    Verified:  0                                
Deployment_affected:                       |   Blockedby:                                   
           Blocking:                       |  
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Comment(by wmb at firmworks.com):

 Please test  http://dev.laptop.org/~wmb/q7b05ma.rom

 That version passed 100 times in a row.

 I gave up on trying to make the Marvell hardware work correctly, and
 instead changed the test so that it passes if the channel data is in the
 wrong order in memory.

 Here is a way to run the test repeatedly, after doing the patches in the
 previous comment:

 {{{
   ok 0
   ok dup .d 1+  test /audio  many
 }}}
 It will run the test until you type a key.

 In over 300 runs, I saw 2 instances of "Right channel failure".  In
 previous versions, the failure rate was about 1 in 6.

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Ticket URL: <http://dev.laptop.org/ticket/12096#comment:11>
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