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| author | John Su <john_su@compal.corp-partner.google.com> | 2020-06-08 17:23:17 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-06-10 18:49:39 +0000 |
| commit | 02cce9024e7ffc142ddf309bba089a0940a2dd7f (patch) | |
| tree | 18596381f3340b8e6d26a9c774c6accbe9a8b2ef /src/mainboard/google | |
| parent | e3c68d2e1bc21dbd5b47925959779aeb57c4a538 (diff) | |
| download | coreboot-02cce9024e7ffc142ddf309bba089a0940a2dd7f.tar.xz | |
mb/google/dedede/variants/waddledoo: Adjust I2Cs CLK to meet spec
After adjustment on waddledoo
Touch Pad CLK: 392.9 KHz
Touch Screen CLK: 387.4 KHz
Audio CLK: 350.9 KHz
BUG=b:151302522
BRANCH=master
TEST=emerge-dedede coreboot chromeos-bootimage
measure by scope with waddledoo.
Signed-off-by: John Su <john_su@compal.corp-partner.google.com>
Change-Id: Iec02a751f1effdbefbb2969db2fd57f27ecdd033
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42187
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/dedede/variants/waddledoo/overridetree.cb | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb b/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb index 4546c9f026..b8be9268ce 100644 --- a/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb +++ b/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb @@ -24,8 +24,8 @@ chip soc/intel/jasperlake }, .i2c[0] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 66, - .fall_time_ns = 90, + .rise_time_ns = 270, + .fall_time_ns = 270, .data_hold_time_ns = 350, }, .i2c[1] = { @@ -33,6 +33,8 @@ chip soc/intel/jasperlake }, .i2c[2] = { .speed = I2C_SPEED_FAST, + .rise_time_ns = 200, + .fall_time_ns = 200, }, .i2c[3] = { .speed = I2C_SPEED_FAST, @@ -41,8 +43,8 @@ chip soc/intel/jasperlake .speed = I2C_SPEED_FAST, .speed_config[0] = { .speed = I2C_SPEED_FAST, - .scl_lcnt = 176, - .scl_hcnt = 95, + .scl_lcnt = 200, + .scl_hcnt = 120, .sda_hold = 36, } }, |