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google/grunt: Update TP/TS/H1 i2c timings 

After adjustment on Careena EVT
TP: 400.0 KHz
TS: 396.8 KHz
H1: 396.8 KHz

BUG=b:112663934,b:112664258
BRANCH=master
TEST=emerge-grunt coreboot
     measure by scope
Change-Id: I9eeaf9290d95969a283f14618878e28faf0ea46f
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/28119
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kevin Chiu 2018-08-16 22:49:49 +08:00 committed by Martin Roth
parent 24462e6507
commit 108bf29516
1 changed files with 5 additions and 5 deletions
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10
src/mainboard/google/kahlee/variants/careena/devicetree.cb
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@ -32,22 +32,22 @@ chip soc/amd/stoneyridge
register "i2c[1]" = "{
.early_init = 1,
.speed = I2C_SPEED_FAST,
.rise_time_ns = 84,
.rise_time_ns = 45,
.fall_time_ns = 4,
}"
# Enable I2C2 for trackpad, pen at 400kHz
register "i2c[2]" = "{
.speed = I2C_SPEED_FAST,
.rise_time_ns = 117,
.fall_time_ns = 113,
.rise_time_ns = 67,
.fall_time_ns = 55,
}"
# Enable I2C3 for touchscreen at 400kHz
register "i2c[3]" = "{
.speed = I2C_SPEED_FAST,
.rise_time_ns = 82,
.fall_time_ns = 67,
.rise_time_ns = 22,
.fall_time_ns = 19,
}"
device cpu_cluster 0 on