#12617 NORM Not Tri: unsecured XO-1 fails to boot 13.1.0 on 3rd boot after install, if previously using 11.3.1

[Zarro Boogs per Child]

#12617: unsecured XO-1 fails to boot 13.1.0 on 3rd boot after install, if
previously using 11.3.1
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           Reporter:  Quozl                |       Owner:  dsd          
               Type:  defect               |      Status:  new          
           Priority:  normal               |   Milestone:  Not Triaged  
          Component:  ofw - open firmware  |     Version:  not specified
         Resolution:                       |    Keywords:               
        Next_action:  design               |    Verified:  0            
Deployment_affected:  Haiti                |   Blockedby:               
           Blocking:                       |  
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Comment(by Quozl):

 A test of RTC interactions on XO-1 and XO-4.

 ----

 XO-1: If the RTC battery is removed, resulting in 0000-00-00 00:00:00, or
 the RTC is manually set to 0000-00-00 00:00:00, then Open Firmware reports
 2000-00-00 00:00:00 on banner.

 ----

 XO-1: If the RTC battery is removed, resulting in 0000-00-00 00:00:00, or
 the RTC is manually set to 0000-00-00 00:00:00, then Linux is booted, the
 system time is shown as 1999-11-30 00:00:00.  (Verified on 8.2.1, 10.1.3,
 11.3.0, 11.3.1, 12.1.0, and 13.1.0.)

 After boot on 8.2.1, the RTC contains 1999-11-30.  (Verified using
 ''hwclock'').

 After boot and shutdown on 12.1.0 and 13.1.0, the RTC is unchanged,
 showing 2000-00-00 in Open Firmware banner.  (Verified using Open
 Firmware, because ''hwclock'' failed with #12622).

 ----

 XO-1: If the RTC is left at 1999-11-30 from the previous test, or manually
 set to 1999-12-06 16:31:15, then Linux is booted, the system time is shown
 as either:
  * 1999-11-30 or 1999-12-06 on 8.2.1, 10.1.3, 11.3.0, or
  * 1963-10-24 or 1963-10-31 on 11.3.1, 12.1.0 and 13.1.0.

 ----

 XO-4: If the RTC battery is removed, the RTC will be cleared to 2000-00-00
 by Open Firmware startup.

 ----

 XO-4: If the RTC is set to 2000-00-00 or 0000-00-00, then Linux is booted,
 the system time is shown as 1970-01-01.  ''hwclock'' shows 1970-01-01.
 After shutdown and reboot, Open Firmware continues to show 2000-00-00 or
 0000-00-00.  If ''hwclock --systohc'' is used, there is no change to the
 value shown by Open Firmware.

 ----

 XO-4: If the RTC is set to 1999-12-06, then Linux is booted, the system
 time is shown as 1970-01-01.  ''hwclock'' reports "''hwclock: The Hardware
 Clock registers contain values that are either invalid (e.g. 50th day of
 month) or beyond the range we can handle (e.g. Year 2095).''"

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Ticket URL: <http://dev.laptop.org/ticket/12617#comment:4>
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