[coreboot] Dump GPIO I/O Registers

joe at smittys.pointclark.net joe at smittys.pointclark.net
Tue Feb 19 15:40:23 CET 2008

Quoting Stefan Reinauer <stepan at coresystems.de>:

> Sorry for joining in late. I wrote a utility a while ago that dumped the
> GPIO registers of an ICH7. Maybe your registers look pretty similar.
> My output is something like:
> Intel Southbridge: 8086:27b8
> GPIOBASE = 0x0480
> gpiobase+0x0000: 0x1f1ff7c0
> gpiobase+0x0004: 0xe0e8efc3
> gpiobase+0x0008: 0x00000000
> gpiobase+0x000c: 0xebffeeff
> gpiobase+0x0010: 0x00000000
> gpiobase+0x0014: 0x00000000
> gpiobase+0x0018: 0x00000000
> gpiobase+0x001c: 0x00000000
> gpiobase+0x0020: 0x00000000
> gpiobase+0x0024: 0x00000000
> gpiobase+0x0028: 0x00000000
> gpiobase+0x002c: 0x00002180
> gpiobase+0x0030: 0x000000ff
> gpiobase+0x0034: 0x00000030
> gpiobase+0x0038: 0x00010035
> gpiobase+0x003c: 0x00000000
Stefan, Stefan, Stefan. You are the bomb:-)
I wish you would have brought this up earlier....
As Ron said "btw, this type of tool is incredibly useful, as you  
doubtless know". I think we should mofify it for all the ICH's and add  
it to the utils or at least a wiki page maybe?

Thanks - Joe

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