#12051 HIGH Not Tri: SD card lock sense inverted w. q7a04 and XO-4

Zarro Boogs per Child bugtracker at laptop.org
Thu Aug 16 15:11:44 EDT 2012

#12051: SD card lock sense inverted w. q7a04 and XO-4
           Reporter:  wad                  |       Owner:  wmb at firmworks.com
               Type:  defect               |      Status:  assigned         
           Priority:  high                 |   Milestone:  Not Triaged      
          Component:  ofw - open firmware  |     Version:  CL4-A2           
         Resolution:                       |    Keywords:                   
        Next_action:  code                 |    Verified:  0                
Deployment_affected:                       |   Blockedby:                   
           Blocking:                       |  

Comment(by wmb at firmworks.com):

 BTW, I measured the voltage on pin 12 (WP#) of the SD connector at 1.47V
 when the card is in locked state.  I wonder if that is high enough,
 considering that we are running the card at 3V3 ?  The MMC pins can be
 used at either 1V8 or 3V3, if that is relevant.

Ticket URL: <http://dev.laptop.org/ticket/12051#comment:3>
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