Peichao Li has uploaded this change for review. ( https://review.coreboot.org/28973
Change subject: mb/google/octopus: STYLUS EMR PEN I2C bus 0 CLK frequency(401KHz)over spec(＜400KHz) ......................................................................
mb/google/octopus: STYLUS EMR PEN I2C bus 0 CLK frequency(401KHz)over spec(＜400KHz)
Need to tune I2C bus 0 clock frequency under the 400KHz
Bug=b:117297214 TEST=flash coreboot to the DUT and measure I2C bus 0 clock frequency whether under 400KHz
Change-Id: I06d9d25f52d7f641d937de0d6b7df3d7a076fbf9 Signed-off-by: Peichao.Wang peichao.wang@bitland.corp-partner.google.com --- M src/mainboard/google/octopus/variants/phaser/overridetree.cb 1 file changed, 2 insertions(+), 2 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/73/28973/1
diff --git a/src/mainboard/google/octopus/variants/phaser/overridetree.cb b/src/mainboard/google/octopus/variants/phaser/overridetree.cb index 2f6915e..3a208ea 100644 --- a/src/mainboard/google/octopus/variants/phaser/overridetree.cb +++ b/src/mainboard/google/octopus/variants/phaser/overridetree.cb @@ -20,8 +20,8 @@ }, .i2c[0] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 152, - .fall_time_ns = 30, + .rise_time_ns = 66, + .fall_time_ns = 90, }, .i2c[5] = { .speed = I2C_SPEED_FAST,