[coreboot-gerrit] Patch merged into coreboot/master: nb/intel/sandybridge/raminit: Allow 933Mhz on Lenovo devices
gerrit at coreboot.org
gerrit at coreboot.org
Mon Jun 20 21:44:37 CEST 2016
the following patch was just integrated into master:
commit 7bddd30e948e6c3856336e77221fdbe5ba749453
Author: Patrick Rudolph <siro at das-labor.org>
Date: Sat Jun 11 18:39:35 2016 +0200
nb/intel/sandybridge/raminit: Allow 933Mhz on Lenovo devices
Set max_mem_clock_mhz in devicetree to 933Mhz.
Allows to run the memory at up to DDR3-1866.
The same frequency was allowed within the first vendor bios,
but Lenovo than decided to limit it to DDR3-1333.
Tested on Lenovo T520 and DDR3-1600 DIMM (RMT3170eb86e9w16).
The RAM is now running at DDR3-1600 instead of DDR3-1333.
This gives about 4% performance increase in glmark2 using the
Intel GPU.
Change-Id: If15be497402d84a2778f0434b6381a64eda832d6
Signed-off-by: Patrick Rudolph <siro at das-labor.org>
Reviewed-on: https://review.coreboot.org/15158
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter at users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth at google.com>
See https://review.coreboot.org/15158 for details.
-gerrit
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