[Trac #858] SD doesn't work in PIO mode

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#858: SD doesn't work in PIO mode
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 Reporter:  PierreOssman  |       Owner:  mlj      
     Type:  defect        |      Status:  new      
 Priority:  low           |   Milestone:  Untriaged
Component:  hardware      |    Keywords:           
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 The SD controller isn't work reliably in PIO (non-DMA) mode. Haven't
 determined exactly why yet, but I've noticed that it sends lots of
 needless buffer interrupts.

 This is probably not a critical issue as we shouldn't need to turn of DMA.

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Ticket URL: <http://dev.laptop.org/ticket/858>
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