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| author | Kevin Chiu <kevin.chiu.17802@gmail.com> | 2021-02-22 11:31:57 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-02-23 15:42:45 +0000 |
| commit | dfd52bd466485e73f1511e05ee7499b05413224b (patch) | |
| tree | 5aa719d9613194ddf141c5a13af7efa091b19fa1 /src/mainboard | |
| parent | 5273322f7395544dfd82d7e380d34aa4f0e3256c (diff) | |
| download | coreboot-dfd52bd466485e73f1511e05ee7499b05413224b.tar.xz | |
mb/google/zork: Adjust Gumboz H1 I2C CLK
Adjust H1 I2C CLK:
404kHz -> 391 kHz
BUG=b:179753353
BRANCH=zork
TEST=1. emerge-zork coreboot chromeos-bootimage
2. power on proto board successfully
3. measure i2c freq by scope is close to 400kHz
Change-Id: Iedd47dd6fc4f7ac7f0aac480d63ddbdf85a84ec2
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50994
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/zork/variants/gumboz/overridetree.cb | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mainboard/google/zork/variants/gumboz/overridetree.cb b/src/mainboard/google/zork/variants/gumboz/overridetree.cb index 73a4a282ff..1cbe0584be 100644 --- a/src/mainboard/google/zork/variants/gumboz/overridetree.cb +++ b/src/mainboard/google/zork/variants/gumboz/overridetree.cb @@ -70,8 +70,8 @@ chip soc/amd/picasso # I2C3 for H1 register "i2c[3]" = "{ .speed = I2C_SPEED_FAST, - .rise_time_ns = 184, /* 0 to 1.26v (1.8 * .7) */ - .fall_time_ns = 42, /* 1.26v to 0 */ + .rise_time_ns = 98, /* 0 to 1.26v (1.8 * .7) */ + .fall_time_ns = 17, /* 1.26v to 0 */ .early_init = true, }" |