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authorLucas Chen <lucas.chen@quanta.corp-partner.google.com>2018-10-18 11:49:27 +0800
committerMartin Roth <martinroth@google.com>2018-11-13 19:04:01 +0000
commit19651a20e2fec2620f5614c3e7a197e725d60417 (patch)
tree86be65375550e2f102a9738dd7cf2c7c8860710b /src
parentc62b477b6e24d78a7072e0f87e7062b87f9396fe (diff)
downloadcoreboot-19651a20e2fec2620f5614c3e7a197e725d60417.tar.xz
google/grunt/aleena: Update H1/TP/TS i2c timings
After adjustment on aleena EVT Audio: 390.0 KHz H1: 390.0 KHz TP: 399.8 KHz TS: 399.8 kHz BUG=b:116306959 BRANCH=master TEST=emerge-grunt coreboot, scope measuring. Change-Id: I6f621508ce2dbb1b9dcdf529ac35afc80d485f53 Signed-off-by: Lucas Chen <lucas.chen@quanta.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/29548 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/kahlee/variants/aleena/devicetree.cb10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/mainboard/google/kahlee/variants/aleena/devicetree.cb b/src/mainboard/google/kahlee/variants/aleena/devicetree.cb
index 27a8e28cd5..784ea6f414 100644
--- a/src/mainboard/google/kahlee/variants/aleena/devicetree.cb
+++ b/src/mainboard/google/kahlee/variants/aleena/devicetree.cb
@@ -32,22 +32,22 @@ chip soc/amd/stoneyridge
register "i2c[1]" = "{
.early_init = 1,
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 84,
+ .rise_time_ns = 45,
.fall_time_ns = 4,
}"
# Enable I2C2 for trackpad, pen at 400kHz
register "i2c[2]" = "{
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 117,
- .fall_time_ns = 113,
+ .rise_time_ns = 26,
+ .fall_time_ns = 11,
}"
# Enable I2C3 for touchscreen at 400kHz
register "i2c[3]" = "{
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 82,
- .fall_time_ns = 67,
+ .rise_time_ns = 20,
+ .fall_time_ns = 19,
}"
register "i2c_scl_reset" = "GPIO_I2C0_SCL | GPIO_I2C1_SCL | \