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mb/google/brya/var/agah: Adjust I2C speed 

Adjust I2C speed for codec, TPM, touchpad.

BUG=b:237691531
TEST=Built and verified adjusted I2C speed < 400KHz

Change-Id: I203d137d61019235ddf38ef74607427db2a7e975
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65957
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Tony Huang 2022-07-19 07:32:43 +08:00 committed by Felix Held
parent 6f4c18db0d
commit 6a0e470197
1 changed files with 9 additions and 0 deletions
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9
src/mainboard/google/brya/variants/agah/overridetree.cb
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@ -14,6 +14,9 @@ chip soc/intel/alderlake
register "common_soc_config" = "{
.i2c[0] = {
.speed = I2C_SPEED_FAST,
.rise_time_ns = 650,
.fall_time_ns = 400,
.data_hold_time_ns = 50,
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
@ -24,9 +27,15 @@ chip soc/intel/alderlake
.i2c[3] = {
.early_init = 1,
.speed = I2C_SPEED_FAST,
.rise_time_ns = 600,
.fall_time_ns = 400,
.data_hold_time_ns = 50,
},
.i2c[5] = {
.speed = I2C_SPEED_FAST,
.rise_time_ns = 650,
.fall_time_ns = 400,
.data_hold_time_ns = 50,
},
}"