#12341 LOW 13.1.0: 13.1.0 build 14 fails to boot on Open Firmware XO-1.75 head

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#12341: 13.1.0 build 14 fails to boot on Open Firmware XO-1.75 head
---------------------------------+------------------------------------------
 Reporter:  Quozl                |                 Owner:  dsd                 
     Type:  defect               |                Status:  new                 
 Priority:  low                  |             Milestone:  13.1.0              
Component:  ofw - open firmware  |               Version:  Development firmware
 Keywords:                       |           Next_action:  diagnose            
 Verified:  0                    |   Deployment_affected:                      
Blockedby:                       |              Blocking:                      
---------------------------------+------------------------------------------
 When 13.1.0 build 14 is booted on Q4D23ja:
  * pretty boot jams, with one dot visible,
  * a dracut emergency shell is available from the keyboard,
  * serial console shows
 {{{
 [   38.245116] dracut Warning: Could not boot.
 [   38.288608] dracut Warning: "/dev/disk/mmc/mmc1p2" does not exist
 }}}
  * ''/dev/disk/mmc/mmc1p2'' indeed does not exist, but there is a
 ''/dev/disk/mmc/mmc2p2'' that ought to be used,

 Workaround:
 {{{
 ok boot root=/dev/disk/mmc/mmc2p2
 }}}

 Here is serial console output, with an empty SD card also inserted,
 http://dev.laptop.org/~quozl/z/1TblJS.txt

 Here is the build from Open Firmware svn head, less emacs and NANDblaster,
 http://dev.laptop.org/~quozl/q4d23ja.rom

 13.1.0 development is apparently happy with q4d23 right now, so this is
 low priority.  But I'd like assistance with diagnosis so that we can bring
 the device-tree work into XO-1.75 Open Firmware releases.

-- 
Ticket URL: <http://dev.laptop.org/ticket/12341>
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