#11736 NORM Not Tri: Can't boot from external SD card since 39fc327: mmcblk0: error -84 transferring data

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#11736: Can't boot from external SD card since 39fc327: mmcblk0: error -84
transferring data
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           Reporter:  sascha_silbe  |       Owner:                                    
               Type:  defect        |      Status:  new                               
           Priority:  normal        |   Milestone:  Not Triaged                       
          Component:  kernel        |     Version:  Development source as of this date
         Resolution:                |    Keywords:                                    
        Next_action:  never set     |    Verified:  0                                 
Deployment_affected:                |   Blockedby:                                    
           Blocking:                |  
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Comment(by sascha_silbe):

 git bisect blames the following OLPC commit:

 {{{
 39fc327e8d541d146528f03150fec36189e4dac5 is the first bad commit
 commit 39fc327e8d541d146528f03150fec36189e4dac5
 Author: Andres Salomon <dilinger at queued.net>
 Date:   Thu Dec 22 16:28:55 2011 -0800

     sdhci-pxa: add retuning of timing in the case of CRC errors

     This is only for the !wlan devices.

     Signed-off-by: Andres Salomon <dilinger at queued.net>

 :040000 040000 8491cdb303acbd02ff57aedb87692034bf5f0c3a
 6539c5e378cad2515cff0de742f4f2c45436fa35 M      arch
 :040000 040000 98a157c23be118fbd5df6dae5cdab93f3562db71
 bd14b387a72156a605e15a7923e308bc9f5cb6e5 M      drivers
 }}}

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Ticket URL: <http://dev.laptop.org/ticket/11736#comment:1>
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