Martin L Roth has submitted this change. ( https://review.coreboot.org/c/coreboot/+/68906 )
Change subject: mb/google/brya/var/skolas: Adjust I2C3 CLK to meet 400 kHz ......................................................................
mb/google/brya/var/skolas: Adjust I2C3 CLK to meet 400 kHz
Fine tune I2C3 clock frequency under the 400 kHz. From 402.7 kHz to 382.9 kHz.
BUG=b:255505160 BRANCH=firmware-brya-14505.B TEST=FW_NAME="skolas" emerge-brya coreboot chromeos-bootimage measure by scope with skolas
Signed-off-by: AlanKY Lee alanky_lee@compal.corp-partner.google.com Change-Id: Ib6c3f895751387256378964ec76be45a4fcbba4e Reviewed-on: https://review.coreboot.org/c/coreboot/+/68906 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Nick Vaccaro nvaccaro@google.com Reviewed-by: Eric Lai eric_lai@quanta.corp-partner.google.com --- M src/mainboard/google/brya/variants/skolas/overridetree.cb 1 file changed, 23 insertions(+), 1 deletion(-)
Approvals: build bot (Jenkins): Verified Nick Vaccaro: Looks good to me, approved Eric Lai: Looks good to me, approved
diff --git a/src/mainboard/google/brya/variants/skolas/overridetree.cb b/src/mainboard/google/brya/variants/skolas/overridetree.cb index 110ca42..fe60e90 100644 --- a/src/mainboard/google/brya/variants/skolas/overridetree.cb +++ b/src/mainboard/google/brya/variants/skolas/overridetree.cb @@ -95,7 +95,7 @@ }, .i2c[3] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 650, + .rise_time_ns = 600, .fall_time_ns = 400, .data_hold_time_ns = 50, },