#11215 NORM 1.75-fi: XO-1.75 may brick OpenFirmware by power button press during flash

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#11215: XO-1.75 may brick OpenFirmware by power button press during flash
---------------------------------+------------------------------------------
 Reporter:  Quozl                |                 Owner:  rsmith              
     Type:  defect               |                Status:  new                 
 Priority:  normal               |             Milestone:  1.75-firmware       
Component:  embedded controller  |               Version:  Development firmware
 Keywords:                       |           Next_action:  review              
 Verified:  0                    |   Deployment_affected:                      
Blockedby:                       |              Blocking:                      
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 With XO-1 and XO-1.5 we disabled the power button during bulk write to the
 SPI FLASH, in order to reduce the risk of bricking caused by the user
 pressing the power button during flashing.

 With XO-1.75 we have two SPI FLASH chips.  When reflashing the EC, the
 power button is already disabled.  When reflashing OpenFirmware, it is
 not.

 Provide a method to disable the power button.

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Ticket URL: <http://dev.laptop.org/ticket/11215>
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