From c8e974f063af7773f91c267071d747a496b2e9ae Mon Sep 17 00:00:00 2001 From: Matt Wells Date: Thu, 19 Jul 2018 12:21:22 -0600 Subject: 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 Reviewed-on: https://review.coreboot.org/27553 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth Reviewed-by: Paul Menzel --- src/mainboard/google/kahlee/variants/grunt/devicetree.cb | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'src') 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 -- cgit v1.2.3