On Wed, 2003-02-26 at 11:35, Richard B. Johnson wrote:
> On 26 Feb 2003, Rusty Lynch wrote:
>
> > The real time clock only needs 8 bytes, but rtc.c is reserving 10h bytes.
> [SNIPPED...]
>
> It only needs two bytes port 0x70 and port 0x71 in ix86. Since the Sparc
> gets addressed differently and can only read/write words, it needs 8
> bytes. Please, if you are going to fix it, please fix it only once by
> setting a different length for the different machines!
> Cheers,
> Dick Johnson
Actually, it's finer grain then x86, it's a chipset issue. As Randy
pointed out in the original thread ==>
> Some Intel chipset specs list RTC as using 0x70 - 0x77, probably with
> some aliasing in there, so it looks to me like an EXTENT of 8 would be
> safer and still allow you access to 0x79.
>
> I'm looking at 82801BA-ICH2, 82801-ICH3, and 82801AA-ICH0 specs.
>
> --
> ~Randy
>
Any suggestions on the right way of doing this?
--rustyl
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Feb 28 2003 - 22:00:38 EST