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authorWei Hualin <weihualin@huaqin.corp-partner.google.com>2024-08-13 22:54:51 +0800
committerFelix Held <felix-coreboot@felixheld.de>2024-08-19 13:25:40 +0000
commitd9a625e052491dfa164bcad97d97487671c5dd1d (patch)
tree902e649031668a96faae537165d9258251981a85 /src/mainboard/google
parent5137e1e1995233f65e146e1b88887738cdd29527 (diff)
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>
Diffstat (limited to 'src/mainboard/google')
-rw-r--r--src/mainboard/google/dedede/variants/awasuki/overridetree.cb4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/awasuki/overridetree.cb b/src/mainboard/google/dedede/variants/awasuki/overridetree.cb
index 5c85f50d43..2b153d0cc1 100644
--- a/src/mainboard/google/dedede/variants/awasuki/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/awasuki/overridetree.cb
@@ -33,9 +33,13 @@ chip soc/intel/jasperlake
},
.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,
},
}"