According to Intel Document 290744 (ICH4 datasheet), 0xcf9 is the reset
register, and setting bits 1 and 2 will result in a hard reset.
Change-Id: Id1a532857d9643d222d61c3902faadd471ae2a9a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43384
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>