diff options
| author | Tony Huang <tony-huang@quanta.corp-partner.google.com> | 2022-07-19 07:32:43 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-07-20 20:29:57 +0000 |
| commit | 6a0e47019733890307d93329de79fc58f71ced77 (patch) | |
| tree | f910efda5c00454b927d2c79710be44e5bdb46bd /src | |
| parent | 6f4c18db0d06d46cad722be93e180aa5ab0d67c8 (diff) | |
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>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brya/variants/agah/overridetree.cb | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/agah/overridetree.cb b/src/mainboard/google/brya/variants/agah/overridetree.cb index a50a9d4cb8..0f50f96712 100644 --- a/src/mainboard/google/brya/variants/agah/overridetree.cb +++ b/src/mainboard/google/brya/variants/agah/overridetree.cb @@ -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, }, }" |