[coreboot] Uncommitted GPIOs
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
> 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.
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