#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 15:00:45 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:                       |  
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Changes (by wmb at firmworks.com):

  * status:  new => assigned


Comment:

 Sigh.

 The MMP3 has the write protect pin logic sense wrong:

 ARMADA 610 Datasheet (MMP2): MMCx_WP  - High indicates the card is write
 protected.

 PXA2128 Datasheet (MMP3) :  MMC[3,1]_WRITE_PROTECT  - Low indicates the
 card is write protected:

 Simplified SD Host Controller Spec: Write protected (SDWP#=0)

 THANKS MARVELL!

 I wish I could reassign this bug to the real culprit.

-- 
Ticket URL: <http://dev.laptop.org/ticket/12051#comment:1>
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