on the cs5530 southbridge,
setpci -s 0:12.0 52.b=ee
setpci -x 0:12.0 5b.b= 0x20 (| with whatever is there)
I am making this a general-purpose userland flash burner -- RGM
Earlier notes from Ollie:
Here is some utilities for using/programming flash ROM on SiS 630/950 M/Bs
1. flash_on, turnning on the flash writer enable for 630/950 M/Bs,
you have to run this before load DoC drivers.
2. flash_rom, use your 630/950 M/Bs as a flash programmer for some
flash parts. This utility is made as modular as possible. If
you find your flash part is not supported, you can add a driver
your own. Or sending me the data sheet.
Ollie