[coreboot-gerrit] Change in coreboot[master]: soraka: Update I2C5 bus tuning parameters

Furquan Shaikh (Code Review) gerrit at coreboot.org
Mon Sep 25 05:51:50 CEST 2017


Furquan Shaikh has uploaded this change for review. ( https://review.coreboot.org/21669


Change subject: soraka: Update I2C5 bus tuning parameters
......................................................................

soraka: Update I2C5 bus tuning parameters

Update I2C5 bus parameters to obtain clock frequency <400kHz.

BUG=b:65062416
TEST=Verified that I2C5 bus frequency in factory is ~397kHz.

Change-Id: I3d0b0388343d4c6c5e7eabf3e06799d059307517
Signed-off-by: Furquan Shaikh <furquan at chromium.org>
---
M src/mainboard/google/poppy/variants/soraka/devicetree.cb
1 file changed, 2 insertions(+), 2 deletions(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/21669/1

diff --git a/src/mainboard/google/poppy/variants/soraka/devicetree.cb b/src/mainboard/google/poppy/variants/soraka/devicetree.cb
index fa16ae0..6d4e8a5 100644
--- a/src/mainboard/google/poppy/variants/soraka/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/soraka/devicetree.cb
@@ -226,8 +226,8 @@
 		.speed = I2C_SPEED_FAST,
 		.speed_config[0] = {
 			.speed = I2C_SPEED_FAST,
-			.scl_lcnt = 180,
-			.scl_hcnt = 80,
+			.scl_lcnt = 195,
+			.scl_hcnt = 90,
 			.sda_hold = 36,
 		},
 	}"

-- 
To view, visit https://review.coreboot.org/21669
To unsubscribe, visit https://review.coreboot.org/settings

Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I3d0b0388343d4c6c5e7eabf3e06799d059307517
Gerrit-Change-Number: 21669
Gerrit-PatchSet: 1
Gerrit-Owner: Furquan Shaikh <furquan at google.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.coreboot.org/pipermail/coreboot-gerrit/attachments/20170925/f133e090/attachment.html>


More information about the coreboot-gerrit mailing list