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mb/google/octopus/var/ampton: Tune I2C Audio 

The previous settings caused the I2C frequency for the audio bus to be
too high, at 417kHz. The settings in this commit correct the frequency
to 396kHz.

BUG=b:119423345

Change-Id: Ibed886e6e1b0df4df6b87f6291e515364b3bf718
Signed-off-by: Justin TerAvest <teravest@chromium.org>
Reviewed-on: https://review.coreboot.org/c/30129
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Justin TerAvest 2018-12-10 08:12:36 -07:00 committed by Patrick Georgi
parent da24535309
commit afd40b2e2f
1 changed files with 3 additions and 2 deletions
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5
src/mainboard/google/octopus/variants/ampton/overridetree.cb
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@ -12,8 +12,9 @@ chip soc/intel/apollolake
}, },
.i2c[5] = { .i2c[5] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,
.rise_time_ns = 104, .rise_time_ns = 60,
.fall_time_ns = 52, .fall_time_ns = 20,
.data_hold_time_ns = 350,
}, },
.i2c[6] = { .i2c[6] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,