Re: Accesing GPIO of ICH10

[Peter Teoh <htmldeveloper@xxxxxxxxx>]

On Wed, Apr 1, 2009 at 8:09 PM, Lakshmana Reddy <rvlreddy.tech@xxxxxxxxx> wrote:
> Hi,
>
> I was trying toggle one of the GPIO pins on ICH10 chipset (Intel
> southbridge), but couldn't find the relevant GPIO source in linux 2.6.23.
> Can somebody shed some light on relevant sources in linux to access the GPIO
> address.
>
> From the datasheet I see there is a GPIOBASE which is LPC config register,
> so technically mapping the GPIOBASE + offset would give me access to the
> required GPIO reg.
> I looked at "arch/i386", boot related code.. couldnt find the any place
> these GPIOBASE getting configured.
> Unlike for other embedded platform (arm/mips), i386/x-86 doesn't have its
> own "gpio" sources.
>
> Any help is greatly appreciated.
> Thanks in advance.
>
> Lakshmana
>
this is for 2.6.25:

http://www.gossamer-threads.com/lists/linux/kernel/878036

and this is for 2.6.24:

http://fixunix.com/kernel/335692-patch-2-6-24-pci_ids-patch-intel-ich10-deviceids.html

perhaps u reused these changes for 2.6.23?


-- 
Regards,
Peter Teoh

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