In message <20030109105749.GA26773@cs.hut.fi>, you write: 

-> On Wed Jan 08 2003 at 15:57:35 +0900, Christopher SEKIYA wrote:
-> > According to the DS17287 docs, the century byte is located in bank 1, offs
-> et
-> > 0x48.  Probably should initialize the clock to bank 1 and leave it there,
-> > possibly split off ds17287-specific clock get/set routines from the stock
-> > mcclock routines as there's no century provision in the base code.
-> 
-> Are you sure it's a ds17287? I remember the IRIX headers hint something
-> to that direction, but at least on my O2 the top of chip says: DS1678-5.
-> (the physical top, that is). Feel free to peek inside of yours and see
-> what it ate.

I'm not; at one point I was convinced it was a 16*87* but I think that was
a touch of dyslexia and too much IP22 on my brain (which has a 1286, IIRC).
Then Chris pointed out the ds17287.h header file in IRIX, so "I believed" ;)

I haven't yet looked at my O2 system board, but the 17287 and 1678 both have
the same software interface for ~ all functions, so it shouldn't matter if
the system uses one or the other... Additionally, as  these chips have an
ID register built in, we should be able to tell in software which chip is
on the board 8-)

--rafal

----
Rafal Boni                                                     rafal@attbi.com
  We are all worms.  But I do believe I am a glowworm.  -- Winston Churchill