Uses common hardware access functions to make smbus block read and
write available in romstage.
Those are needed to reconfigure the clockgen on smbus offset 0x69,
which is sometimes needed for things like CPU C-states or analog
display out to work properly.
Change-Id: I0a06178d2474ce65972de157cb437b42f3354da0
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19594
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Damien Zammit <damien@zamaudio.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
ad29ec351e