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mb/google/dedede/var/metaknight: Configure I2C high and low times 

Configure the I2C bus high and low times for port0,2 and 4 I2C buses.

BUG=b:176519792
TEST=Measured the I2C bus frequency lower than 400 KHz.

Change-Id: Ieed038c93f0972c06cb3fa311742dd22ac2e875d
Signed-off-by: Tim Chen <tim-chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49014
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
This commit is contained in:
Tim Chen 2020-12-30 17:38:06 +08:00 committed by Patrick Georgi
parent cd6998b810
commit ed47332ff6
1 changed files with 18 additions and 0 deletions
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18
src/mainboard/google/dedede/variants/metaknight/overridetree.cb
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@ -25,15 +25,33 @@ 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[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,
}
}, },
}" }"