[coreboot-gerrit] Patch merged into coreboot/master: 1164d51 broadwell: Increase I2C SDA hold timing to 300ns
gerrit at coreboot.org
gerrit at coreboot.org
Fri Apr 10 19:31:37 CEST 2015
the following patch was just integrated into master:
commit 1164d51828c0edae56376b9ebcbb910e577ed748
Author: Chiranjeevi Rapolu <chiranjeevi.rapolu at intel.com>
Date: Wed Oct 29 17:26:05 2014 -0700
broadwell: Increase I2C SDA hold timing to 300ns
I2C bus SDA hold time can be marginal with 60ns value, especially
when there is level shifter on the bus. So program it to 300ns
based on Fast-mode specification, which is between 0 to 900ns.
Apply the same timing for Standard-mode as well.
Refer to original bug on BayTrail chrome-os-partner:28092, this
is to carry forward the fix to Broadwell.
BRANCH=chromeos-2013.04
BUG=chrome-os-partner:33378
TEST=suspend resume test, watch for I2C errors
Change-Id: I93200b141602163903f5c9f52b94013bcf3382a5
Signed-off-by: Stefan Reinauer <reinauer at chromium.org>
Original-Commit-Id: 72b82a1d5d836594e7d0f95972cc0dc91ae7ff8c
Original-Change-Id: I995d6868a44f2578a6d0b18dd5e8548f3c3cd494
Original-Signed-off-by: Chiranjeevi Rapolu <chiranjeevi.rapolu at intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/226386
Original-Reviewed-by: Wenkai Du <wenkai.du at intel.com>
Original-Reviewed-by: Duncan Laurie <dlaurie at chromium.org>
Reviewed-on: http://review.coreboot.org/9467
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi at google.com>
See http://review.coreboot.org/9467 for details.
-gerrit
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