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

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

BUG=b:168783630
TEST=Measured the I2C bus frequency reduce to 387 KHz.

Signed-off-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Change-Id: I9f5b81815f86db7bdcea95a95b9c9b235b4a34b1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46613
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Ren Kuo 2020-10-21 11:26:48 +08:00 committed by Patrick Georgi
parent 8f594b7319
commit 12b376c87f
1 changed files with 24 additions and 0 deletions
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24
src/mainboard/google/dedede/variants/magolor/overridetree.cb
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@ -25,18 +25,42 @@ chip soc/intel/jasperlake
}, },
.i2c[0] = { .i2c[0] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
}, },
.i2c[1] = { .i2c[1] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,
}, },
.i2c[2] = { .i2c[2] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
}, },
.i2c[3] = { .i2c[3] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
}, },
.i2c[4] = { .i2c[4] = {
.speed = I2C_SPEED_FAST, .speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 190,
.scl_hcnt = 100,
.sda_hold = 40,
}
}, },
}" }"