MR0 may not always be programmed in the training result registers. Thus,
do not rely on its values. Also account for per-channel differences.
Change-Id: Iaf3b545ea55735b46caf1bd62d5859f2b3efa159
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47750
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>