From 04b5123aed8983bb9002402545f2cc62b9ffd148 Mon Sep 17 00:00:00 2001
From: Peichao Wang <peichao.wang@bitland.corp-partner.google.com>
Date: Tue, 15 Oct 2019 11:29:36 +0800
Subject: mb/google/hatch/akemi: Tune I2C bus 1 clock

Tune I2C bus 1 clock and insure it meets I2C spec.

BUG=b:142683257
TEST==flash coreboot to the DUT and measure I2C bus 1 clock
frequency less than 400KHz

Signed-off-by: Peichao.Wang <peichao.wang@bitland.corp-partner.google.com>
Change-Id: Id4cdbad4dd9d451763fb536988402d6e6fe3a378
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36050
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
---
 src/mainboard/google/hatch/variants/akemi/overridetree.cb | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/mainboard/google/hatch/variants/akemi/overridetree.cb b/src/mainboard/google/hatch/variants/akemi/overridetree.cb
index 5ba8531ba3..b58beaa7a3 100644
--- a/src/mainboard/google/hatch/variants/akemi/overridetree.cb
+++ b/src/mainboard/google/hatch/variants/akemi/overridetree.cb
@@ -35,6 +35,8 @@ chip soc/intel/cannonlake
 		},
 		.i2c[0] = {
 			.speed = I2C_SPEED_FAST,
+			.rise_time_ns = 50,
+			.fall_time_ns = 15,
 		},
 		.i2c[1] = {
 			.speed = I2C_SPEED_FAST,
-- 
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