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| author | Kevin Chiu <kevin.chiu.17802@gmail.com> | 2021-02-04 20:09:51 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-02-06 09:08:44 +0000 |
| commit | 72463720a2aa831c703e2536843f5f58ed32091d (patch) | |
| tree | 5a7c92996b45e09640d0a0da051c56d9eb666115 | |
| parent | 26b0bad671dd4b0248a7f5e041cfe831d1506e85 (diff) | |
| download | coreboot-72463720a2aa831c703e2536843f5f58ed32091d.tar.xz | |
mb/google/zork: Adjust Dirinboz H1 I2C CLK
Adjust H1 I2C CLK:
404kHz -> 391 kHz
BUG=b:178656936
BRANCH=master
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: I9067db9fc7a4d6aa2ce33b86ba6a611dfd5d7838
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50284
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Kangheui Won <khwon@chromium.org>
| -rw-r--r-- | src/mainboard/google/zork/variants/dirinboz/overridetree.cb | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mainboard/google/zork/variants/dirinboz/overridetree.cb b/src/mainboard/google/zork/variants/dirinboz/overridetree.cb index 554cdeac94..0e50d2f70c 100644 --- a/src/mainboard/google/zork/variants/dirinboz/overridetree.cb +++ b/src/mainboard/google/zork/variants/dirinboz/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, }" |