#1905 BLOC Trial-3: Field Return: flash corruption - OpenFirmware complaining of 'unknown node type 2006'.

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#1905: Field Return: flash corruption - OpenFirmware complaining of 'unknown node
type 2006'.
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  Reporter:  dwmw2     |       Owner:  wad    
      Type:  defect    |      Status:  new    
  Priority:  blocker   |   Milestone:  Trial-3
 Component:  hardware  |     Version:         
Resolution:            |    Keywords:         
  Verified:  0         |  
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Comment (by dwmw2):

 We always perform the DMA transfer to write to the flash chip immediately
 after memcpy() into the buffer.
 We suspected that there might be interaction between the CPU's dcache and
 the DMA. But adding a cache flush ('wbinvd') to the driver immediately
 before the DMA is triggered does not solve the problem.

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Ticket URL: <http://dev.laptop.org/ticket/1905#comment:46>
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