Re: [coreboot] Dump GPIO I/O Registers

Quoting Carl-Daniel Hailfinger :
> On 16.02.2008 17:57, [e-mail] wrote:
> > Hello,
> > How do I dump the GPIO I/O Registers in linux. I need to dump the    
> > GPIO's from the southbridge. Anyone?
>
> Depends on the southbridge. It could be directly/indirectly
> memory-mapped or port-based. Simply tell us what the data sheet says
> about reading the GPIO state and we can help.
>
> Regards,
> Carl-Daniel

The southbridge is the Intel 82801DB ICH4. I don't see anything in the  
datasheet about reading the GPIO state....just says:

The control for the general purpose I/O signals is handled through a  
separate 64-byte I/O space.

I can find out the base offset address from the LPC pci configuration  
registers, but how do I dump it into human readable form??

Thanks - Joe