On Sunday, May 20, 2007, Udo A. Steinberg wrote:
> On Mon, 7 May 2007 13:31:28 -0700 Venki Pallipadi (VP) wrote:
>
> VP> Force detect and/or enable HPET on ICH chipsets. This patch just
> handles the VP> detection part and following patches use this
> information.
> VP>
> VP> Signed-off-by: Venkatesh Pallipadi <[email protected]>
>
> Venki,
>
> Is there any reason your patch only enables HPET on ICH6 and beyond?
> HPET can be enabled on earlier ICH by setting bit 17 in GEN_CNTL on PCI
> dev 31, func 0, offset d0. This seems to work for ICH3/4/5. Are there
> any errata affecting these ICHs?
I see it documented in the ICH5 datasheet, but that bit is marked reserved
in the ICH3 and ICH4 datasheets... Which docs are you looking at?
Jesse
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