On Thu, Apr 7, 2011 at 12:07 PM, Jeremy Moles <[email protected]> wrote: > On Thu, 2011-04-07 at 17:39 +0200, Peter Stuge wrote: >> Jeremy Moles wrote: >> > > To clarify, superiotool has functions internally for writing to >> > > registers in superios, >> .. >> > I will need to find whatever register corresponds to GPIO03 and >> > set just that particular HIGH bit? >> >> Yes. Look at the data sheet and maybe as a help you can step through >> superiotool as well. >> >> >> > (Other keywords in their email were things like "GPIO:0x2" and >> > GPIO:0x18", but I haven't been able to get any additional >> > clarification from them...) >> >> Superios are easier to program than many other components, and are >> well documented, so you shouldn't have too much trouble. GPIO 3 is >> what you need to know about how the hardware is built. > > I do have a document describing the hardware pretty thoroughly, but > I am unfamiliar with the terminology it uses and how I would map that > into something I AM familiar with in Linux. > > When you say well-documented: is there a particular document you can > think of offhand? > > At any rate, I'm sure I'm close to the edge of how much this list is > willing to tolerate. :) Thanks for the help, hopefully I can make > something out of this...
Perhaps this will help: http://www.coreboot.org/Developer_Manual/Super_IO Try looking at a datasheet for just about any Winbond super IO that does have a public datasheet, they all work generally the same way, just the LDNs and registers vary. Also, have you tried contacting Winbond/Nuvoton for the datasheet? I've never had them deny me a datasheet, and never had to sign an NDA for one either. And have you inspected the board to find the Super IO and confirm that it is a Winbond? Sometimes designs change, it wouldn't surprise me to find that it really is the NSC chip. -Corey -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
