[coreboot] Uncommitted GPIOs

Joseph Smith joe at settoplinux.org
Wed Jul 14 23:06:24 CEST 2010


On 07/14/2010 05:00 PM, Peter Stuge wrote:
> Gregg C Levine wrote:
>> Would anyone be able to confirm this line of reasoning? For anything
>> based on the X86 design styles, only the GEODE families have these
>> uncommitted GPIO points that are documented.
>
> I think there's more to the story.
>
>
>> But do the Intel designed chipsets contain undocumented GPIO
>> points?
>
> Yes, and many if not all superio chips have documented GPIO pins.
>
Intel northbridges have GPIO lines in the integrated graphics display 
(IGD). Not usually documented in datasheets.

Intel southbridges also have GPIO lines.

And every SuperIO has many GPIO lines.

-- 
Thanks,
Joseph Smith
Set-Top-Linux
www.settoplinux.org




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