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mb/google/dedede/var/waddledee: Configure I2C high and low time 

Configure the I2C bus high and low time for all enabled I2C buses.

BUG=b:163743035
TEST=Measured the I2C bus frequency as 384 KHz, high time as 924 ns and
low time as 1680 ns.

Change-Id: I60a5f6814fb9818c724f6b6fe465ea49d0de0f97
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45083
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Karthikeyan Ramasubramanian 2020-09-03 11:54:23 -06:00 committed by Patrick Georgi
parent dc87025ce4
commit 9526c5deda
1 changed files with 18 additions and 0 deletions
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18
src/mainboard/google/dedede/variants/waddledee/overridetree.cb
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@ -21,18 +21,36 @@ chip soc/intel/jasperlake
},
.i2c[0] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
},
.i2c[2] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
},
.i2c[3] = {
.speed = I2C_SPEED_FAST,
},
.i2c[4] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
},
}"