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| author | Peichao Wang <peichao.wang@bitland.corp-partner.google.com> | 2019-10-15 11:29:36 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-10-16 14:13:56 +0000 |
| commit | 04b5123aed8983bb9002402545f2cc62b9ffd148 (patch) | |
| tree | d30bc3ad2c08e54738ce854409ffbbcab428d158 /src/mainboard | |
| parent | f88c0115461f34230b5e02e353087ed09dbe969f (diff) | |
| download | coreboot-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/mainboard')
| -rw-r--r-- | src/mainboard/google/hatch/variants/akemi/overridetree.cb | 2 |
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, |