Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/83906?usp=email )
Change subject: mb/google/dedede/var/awasuki: Adjust I2C frequency to less than 400 KHz ......................................................................
mb/google/dedede/var/awasuki: Adjust I2C frequency to less than 400 KHz
Before: I2C2 - 431KHz I2C4 - 413KHz
After: I2C2 - 364KHz I2C4 - 370KHz
BUG=b:351968527 TEST=Rate of the actual measured machine is pass.
Change-Id: Ieb75db1dc95ffd5ca806a194ae678c700fa0741c Signed-off-by: Wei Hualin weihualin@huaqin.corp-partner.google.com Reviewed-on: https://review.coreboot.org/c/coreboot/+/83906 Reviewed-by: Eric Lai ericllai@google.com Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Subrata Banik subratabanik@google.com Reviewed-by: Weimin Wu wuweimin@huaqin.corp-partner.google.com --- M src/mainboard/google/dedede/variants/awasuki/overridetree.cb 1 file changed, 4 insertions(+), 0 deletions(-)
Approvals: Weimin Wu: Looks good to me, but someone else must approve build bot (Jenkins): Verified Eric Lai: Looks good to me, but someone else must approve Subrata Banik: Looks good to me, approved
diff --git a/src/mainboard/google/dedede/variants/awasuki/overridetree.cb b/src/mainboard/google/dedede/variants/awasuki/overridetree.cb index 5c85f50..2b153d0 100644 --- a/src/mainboard/google/dedede/variants/awasuki/overridetree.cb +++ b/src/mainboard/google/dedede/variants/awasuki/overridetree.cb @@ -33,9 +33,13 @@ }, .i2c[2] = { .speed = I2C_SPEED_FAST, + .rise_time_ns = 86, + .fall_time_ns = 5, }, .i2c[4] = { .speed = I2C_SPEED_FAST, + .rise_time_ns = 69, + .fall_time_ns = 3, }, }"