Re: [coreboot] [RFC] CMOS options

[Andrew Goodbody]

Stefan Reinauer wrote:
> > I noticed that century byte is happily ignored - need to check if it
> > really
> > collides.
>
> Is that good for anything? Does the BIOS need to care? I thought hwclock
> --sys-to-hc does that ;-)

Some implementations of the RTC will auto increment the century byte on 
a century roll over. I know we are past Y2K so this is unlikely to 
produce a bug in practice but there is the possibility for an unexpected 
change in the contents if that position is used for any other purpose.
It is a 'well known' position and can be read/written by an OS.

Andrew