[coreboot] Dump GPIO I/O Registers

Gregg C Levine hansolofalcon at worldnet.att.net
Mon Feb 18 18:09:08 CET 2008


Hello!
Perfectly.
As others have stated, you have reached the point where you might really
need the board's schematic. Plus a good understanding of the datasheets for
the appropriate part.


I was under the understanding that you had already gotten this far on other
systems.
--
Gregg C Levine hansolofalcon at worldnet.att.net
"The Force will be with you always." Obi-Wan Kenobi
  


> -----Original Message-----
> From: coreboot-bounces at coreboot.org [mailto:coreboot-bounces at coreboot.org]
On
> Behalf Of joe at smittys.pointclark.net
> Sent: Sunday, February 17, 2008 8:39 PM
> To: Gregg C Levine
> Cc: 'Coreboot'
> Subject: Re: [coreboot] Dump GPIO I/O Registers
> 
> Quoting Gregg C Levine <hansolofalcon at worldnet.att.net>:
> 
> > Hello!
> > Isn't the southbridge part of the basic PCI structure? I seem to recall
a
> > discussion on the earlier list for what we do here, and it came up that
you
> > can dump the registers for the bridges via the lspci and probably manage
> > them via the setpci commands from the pcitools stuff.
> >
> > According to the cover sheet for them for my distribution it is possible
to
> > adjust the latency timers of the whole thing via the setpci command.
Ideally
> > simply doing a man lspci should tell you what and who behind them. Oh
and
> > one more thing? Be careful.
> >
> > --
> > Gregg C Levine hansolofalcon at worldnet.att.net
> > "The Force will be with you always." Obi-Wan Kenobi
> >
> Greg lspci works ok to find/set pci configuration registers. I need
> something that will probe the GPIO's to find out which one is asserted
> and if the signal is in or out? Does that make more sense?
> >
> >
> >> -----Original Message-----
> >> From: coreboot-bounces at coreboot.org
[mailto:coreboot-bounces at coreboot.org]
> > On
> >> Behalf Of joe at smittys.pointclark.net
> >> Sent: Saturday, February 16, 2008 11:58 AM
> >> To: Coreboot
> >> Subject: [coreboot] Dump GPIO I/O Registers
> >>
> >> Hello,
> >> How do I dump the GPIO I/O Registers in linux. I need to dump the
> >> GPIO's from the southbridge. Anyone?
> >>
> >> Thanks - Joe





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