It rewrites the results of receive enable stored in the upper nvram
region, to avoid running receive enable again.
Some debug info is also printed about the self-refresh registers.
(Not enforcing a reset here, since 0 does not necessarily mean it's
not in self-refresh).
Change-Id: Ib54bc5c7b0fed6d975ffc31f037b5179d9e5600b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17998
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>