SH Kim has uploaded this change for review.
mb/google/brya/var/xol: Update I2C5 timing parameter
Update I2C5 timing parameter values to meet touchpad spec.
BUG=None
BRANCH=brya
TEST=built and measure I2C5 timing parameters
tLOW : 2.06 us
tHIGH: 1.05 us
tHD : 0.42 us
FSCL : 304 KHz
Change-Id: I386b2765410fd10b8cd711f54478fb52428de5a3
Signed-off-by: Seunghwan Kim <sh_.kim@samsung.corp-partner.google.com>
---
M src/mainboard/google/brya/variants/xol/overridetree.cb
1 file changed, 2 insertions(+), 3 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/00/82100/1
diff --git a/src/mainboard/google/brya/variants/xol/overridetree.cb b/src/mainboard/google/brya/variants/xol/overridetree.cb
index 80d15fe..e60d535 100644
--- a/src/mainboard/google/brya/variants/xol/overridetree.cb
+++ b/src/mainboard/google/brya/variants/xol/overridetree.cb
@@ -131,9 +131,8 @@
},
.i2c[5] = {
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 650,
- .fall_time_ns = 400,
- .data_hold_time_ns = 50,
+ .rise_time_ns = 112,
+ .fall_time_ns = 2,
},
}"
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