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authorPeichao Wang <peichao.wang@bitland.corp-partner.google.com>2019-10-15 11:29:36 +0800
committerPatrick Georgi <pgeorgi@google.com>2019-10-16 14:13:56 +0000
commit04b5123aed8983bb9002402545f2cc62b9ffd148 (patch)
treed30bc3ad2c08e54738ce854409ffbbcab428d158 /src
parentf88c0115461f34230b5e02e353087ed09dbe969f (diff)
downloadcoreboot-04b5123aed8983bb9002402545f2cc62b9ffd148.tar.xz
mb/google/hatch/akemi: Tune I2C bus 1 clock
Tune I2C bus 1 clock and insure it meets I2C spec. BUG=b:142683257 TEST==flash coreboot to the DUT and measure I2C bus 1 clock frequency less than 400KHz Signed-off-by: Peichao.Wang <peichao.wang@bitland.corp-partner.google.com> Change-Id: Id4cdbad4dd9d451763fb536988402d6e6fe3a378 Reviewed-on: https://review.coreboot.org/c/coreboot/+/36050 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/hatch/variants/akemi/overridetree.cb2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/google/hatch/variants/akemi/overridetree.cb b/src/mainboard/google/hatch/variants/akemi/overridetree.cb
index 5ba8531ba3..b58beaa7a3 100644
--- a/src/mainboard/google/hatch/variants/akemi/overridetree.cb
+++ b/src/mainboard/google/hatch/variants/akemi/overridetree.cb
@@ -35,6 +35,8 @@ chip soc/intel/cannonlake
},
.i2c[0] = {
.speed = I2C_SPEED_FAST,
+ .rise_time_ns = 50,
+ .fall_time_ns = 15,
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,