[coreboot] Reference stub for CB signature detection?

[Philip Prindeville]

I'm writing a Linux platform driver for a couple of Geode based boards, and was thinking that it would be nice if there was a canonical/prototypical stub routine that came with coreboot that detected the signature on a target system.

That is, I could paste this code into a platform driver (for instance) in Linux that would locate the mainboard vendor and model, and I could use that to confirm that I'm running on the correct target and not a mismatched kernel configuration.

I looked at flashrom's coreboot_init() and find_lb_table() and it looks like something could be cobbled from there.

Can someone please piece that together?

Thanks,

-Philip