#4392 BLOC MP Star: OS doesn't support the board revision for MP

[Zarro Boogs per Child]

#4392: OS doesn't support the board revision for MP
-------------------------------+--------------------------------------------
 Reporter:  wmb at firmworks.com  |       Owner:  dilinger
     Type:  defect             |      Status:  new     
 Priority:  blocker            |   Milestone:  MP Start
Component:  kernel             |     Version:          
 Keywords:                     |    Verified:  0       
-------------------------------+--------------------------------------------
 Cutting to the chase, arch/i386/kernel/olpc.c has no entry for "C2" in
 olpc_boardrev_str[] .  One implication is that suspend via the power
 button won't happen (Quanta has observed this already); I'm sure there are
 others.

 We need a better way of doing this; otherwise this problem will keep
 coming up again and again.  OFW already handles it automatically.  The
 value of /ofw/board-revision-int is a 32-bit big-endian binary integer
 that is monotonically increasing.  Its value for rev C2, for example, is
 (0xC2 << 4) + 8.   The "8" is for the production build; pre-builds might
 have a smaller (0-7) last digit, and post-variants might have a larger
 (9-f) last digit.  Shifting off the last digit will give you the base
 board revision.

-- 
Ticket URL: <https://dev.laptop.org/ticket/4392>
One Laptop Per Child <https://dev.laptop.org>
OLPC bug tracking system