nb/intel/x4x: Don't use cached settings if CPU FSB has been changed
commitb0c6cffb093d82b8a24b00e1914e5195bcc0b50d
authorArthur Heymans <arthur@aheymans.xyz>
Wed, 5 Sep 2018 18:39:39 +0000 (5 20:39 +0200)
committerFelix Held <felix-coreboot@felixheld.de>
Sun, 16 Sep 2018 18:57:20 +0000 (16 18:57 +0000)
tree7ff7d0c805cd41389399c58c3df008fd3d7f8fcf
parentf2c3d8076e6ed0d8f1e2bc83d61f1930ec9d1e18
nb/intel/x4x: Don't use cached settings if CPU FSB has been changed

Using the cached CPU FSB setting can simply be wrong, in which case it won't
boot. Since the selected timings also depend on the CPU FSB, it is also best to
not use cached timings at all when a change is detected.

Tested on P5QC, swapped a 1333MHz FSB to a 800MHz FSB and it uses !fast_boot
boot path.

Change-Id: I12d91d0e892c15778409d7c00b27652ee52ca80c
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/28506
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
src/northbridge/intel/x4x/raminit.c