Morris Hsu has uploaded this change for review.
mb/google/brya/var/dochi: Adjust I2C3 Waveform to meet SPEC
Tuning i2c3 frequency ,timing ,Waveform to meet SPEC
BUG=b:318339970
TEST=emerge-brya coreboot and Touchpanel can work.
Change-Id: Iad3bf3810fa794dd3852274d4532035a83c064e0
Signed-off-by: Morris Hsu <morris-hsu@quanta.corp-partner.google.com>
---
M src/mainboard/google/brya/variants/dochi/overridetree.cb
1 file changed, 6 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/46/80146/1
diff --git a/src/mainboard/google/brya/variants/dochi/overridetree.cb b/src/mainboard/google/brya/variants/dochi/overridetree.cb
index 19ace7b..4f76579 100644
--- a/src/mainboard/google/brya/variants/dochi/overridetree.cb
+++ b/src/mainboard/google/brya/variants/dochi/overridetree.cb
@@ -75,6 +75,12 @@
.rise_time_ns = 550,
.fall_time_ns = 400,
.data_hold_time_ns = 50,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 190,
+ .scl_hcnt = 110,
+ .sda_hold = 40,
+ }
},
.i2c[5] = {
.speed = I2C_SPEED_FAST,
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