[coreboot] dell s1850: 00e8 is important!

[ron minnich]

interesting.

e8 matters.

here is the first round, where it comes up and patches from MCH
registers and restarts.
reset:SerialICE-hlp: outl 00e8 <= 44656c6c
reset:SerialICE-hlp: outl 00e8 <= 50726f74

here is post rest
postreset:SerialICE-hlp: outl 00e8 <= 44656c6c
postreset:SerialICE-hlp: outl 00e8 <= 50726f74
postreset:SerialICE-hlp: outl 00e8 <= 496e6974 <=== this one kills serialice

If I disable writes to 00e8, then Things Don't Work Right. At some
point the factory bios just goes into a jump . style loop.

I wonder what e8 is?

ron