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authorJohn Su <john_su@compal.corp-partner.google.com>2019-11-26 10:39:45 +0800
committerPatrick Georgi <pgeorgi@google.com>2019-12-04 14:09:08 +0000
commitafd687f71f629bbdf6c5bb25ac43e32079853a0c (patch)
tree5e4c74d2e754bb0eb4cde6805c6685e1b998b489
parentd9105d98b7cf98bec64f53ee1fb786599279b336 (diff)
downloadcoreboot-afd687f71f629bbdf6c5bb25ac43e32079853a0c.tar.xz
mb/google/drallion/variants/drallion: Adjust all I2C CLK to meet spec
After adjustment on Drallion Touch Pad CLK: 393 KHz Touch Screen CLK: 381 KHz H1 CLK: 391 KHz BUG=b:144245601 BRANCH=master TEST=emerge-drallion coreboot chromeos-bootimage measure by scope with drallion. Change-Id: Id669d7199bc6ed4b55d7542f095c6c8baf00f984 Signed-off-by: John Su <john_su@compal.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37230 Reviewed-by: Mathew King <mathewk@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
-rw-r--r--src/mainboard/google/drallion/variants/drallion/devicetree.cb12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/mainboard/google/drallion/variants/drallion/devicetree.cb b/src/mainboard/google/drallion/variants/drallion/devicetree.cb
index 2fcf191eae..75fd3ee09b 100644
--- a/src/mainboard/google/drallion/variants/drallion/devicetree.cb
+++ b/src/mainboard/google/drallion/variants/drallion/devicetree.cb
@@ -176,20 +176,20 @@ chip soc/intel/cannonlake
.chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT,
.i2c[0] = {
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 52,
- .fall_time_ns = 110,
+ .rise_time_ns = 180,
+ .fall_time_ns = 200,
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 52,
- .fall_time_ns = 110,
+ .rise_time_ns = 30,
+ .fall_time_ns = 80,
.data_hold_time_ns = 330,
},
.i2c[4] = {
.early_init = 1,
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 36,
- .fall_time_ns = 99,
+ .rise_time_ns = 30,
+ .fall_time_ns = 60,
},
}"