diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2017-12-11 07:36:15 +0100 |
|---|---|---|
| committer | Arthur Heymans <arthur@aheymans.xyz> | 2017-12-12 12:05:22 +0000 |
| commit | f6f4ba9e4579e2c6ce5bda375c0f3b7cd7595bd7 (patch) | |
| tree | a4c13164045e468c5cd869a994e17471b606a945 /src/northbridge | |
| parent | cda1c4a521918056cfb4f1fc4f6a259e58fe0260 (diff) | |
nb/intel/x4x/rcven.c: Fix programming coarse offset
This fixes some bitwise logic errors that caused the coarse offset not
to be programmed.
This fixes a regression introduced by 6d7a8c
"nb/intel/x4x/raminit: Rework receive enable calibration"
where the coarse offset doesn't get programmed anymore.
TESTED on Foxconn g41s-k on a DIMM where the final DQS receive enable
delays are close but above and below the edge of a coarse delay setting.
Change-Id: I41869815f782a2ea1178bdea006e3a7587441323
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/22816
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/intel/x4x/rcven.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/northbridge/intel/x4x/rcven.c b/src/northbridge/intel/x4x/rcven.c index 23f8d52c3c..cc45aa9331 100644 --- a/src/northbridge/intel/x4x/rcven.c +++ b/src/northbridge/intel/x4x/rcven.c @@ -365,8 +365,9 @@ void rcven(const struct sysinfo *s) "medium: %d; tap: %d\n", channel, lane, reg8, timing[lane].medium, timing[lane].tap); - MCHBAR16(0x400 * channel + 0x5fa) &= - ~(3 << (lane * 2)) | (reg8 << (lane * 2)); + MCHBAR16(0x400 * channel + 0x5fa) = + (MCHBAR16(0x400 * channel + 0x5fa) & + ~(3 << (lane * 2))) | (reg8 << (lane * 2)); } /* simply use timing[0] to program mincoarse */ timing[0].coarse = mincoarse; |