diff options
| author | Matt Wells <dawells@google.com> | 2018-07-19 12:21:22 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-07-23 08:10:05 +0000 |
| commit | c8e974f063af7773f91c267071d747a496b2e9ae (patch) | |
| tree | a4bb2256c16de59da3a5512c37ce5d991df40e3d /src/mainboard/google/kahlee | |
| parent | 8583a716bc53e7a12998849045da4e214b3025db (diff) | |
mb/google/kahlee: Update i2c timings
Change the I2c timings to the latest measurements.
BUG=b:72442912
TEST=Boot grunt
Change-Id: I6f9538d26b77ae952ad585e569b3a836e1a09da2
Signed-off-by: Matt Wells <dawells@google.com>
Reviewed-on: https://review.coreboot.org/27553
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/mainboard/google/kahlee')
| -rw-r--r-- | src/mainboard/google/kahlee/variants/grunt/devicetree.cb | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/mainboard/google/kahlee/variants/grunt/devicetree.cb b/src/mainboard/google/kahlee/variants/grunt/devicetree.cb index 3863100b63..a5229b44c2 100644 --- a/src/mainboard/google/kahlee/variants/grunt/devicetree.cb +++ b/src/mainboard/google/kahlee/variants/grunt/devicetree.cb @@ -24,30 +24,30 @@ chip soc/amd/stoneyridge # Enable I2C0 for audio, USB3 hub at 400kHz register "i2c[0]" = "{ .speed = I2C_SPEED_FAST, - .rise_time_ns = 95, - .fall_time_ns = 3, + .rise_time_ns = 151, + .fall_time_ns = 50, }" # Enable I2C1 for H1 at 400kHz register "i2c[1]" = "{ .early_init = 1, .speed = I2C_SPEED_FAST, - .rise_time_ns = 84, - .fall_time_ns = 4, + .rise_time_ns = 62, + .fall_time_ns = 2, }" # 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 = 170, + .fall_time_ns = 91, }" # Enable I2C3 for touchscreen at 400kHz register "i2c[3]" = "{ .speed = I2C_SPEED_FAST, - .rise_time_ns = 82, - .fall_time_ns = 67, + .rise_time_ns = 84, + .fall_time_ns = 50, }" device cpu_cluster 0 on |