mb/google/dedede/var/kracko: Configure I2C high and low times
Configure I2C high / low time in device tree to ensure I2C CLK runs under I2C_SPEED_FAST (400 kHz). Touchpad: 387.7kHz Touchscreen: 389.4kHz Audio: 387.6kHz P-sensor: 372.5kHz BaUG=b:178092096 BRANCH=dedede TEST=Build and EE check after tuning I2C clock is under 400kHz Change-Id: I4f6bdd3802cd94671325a89458cde981a2ffa929 Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55407 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
This commit is contained in:
parent
5fd0341fcc
commit
e4aa07e2bd
|
@ -35,18 +35,26 @@ chip soc/intel/jasperlake
|
|||
},
|
||||
.i2c[0] = {
|
||||
.speed = I2C_SPEED_FAST,
|
||||
.rise_time_ns = 212,
|
||||
.fall_time_ns = 38,
|
||||
},
|
||||
.i2c[1] = {
|
||||
.speed = I2C_SPEED_FAST,
|
||||
},
|
||||
.i2c[2] = {
|
||||
.speed = I2C_SPEED_FAST,
|
||||
.rise_time_ns = 212,
|
||||
.fall_time_ns = 38,
|
||||
},
|
||||
.i2c[4] = {
|
||||
.speed = I2C_SPEED_FAST,
|
||||
.rise_time_ns = 212,
|
||||
.fall_time_ns = 38,
|
||||
},
|
||||
.i2c[5] = {
|
||||
.speed = I2C_SPEED_FAST,
|
||||
.rise_time_ns = 212,
|
||||
.fall_time_ns = 38,
|
||||
},
|
||||
}"
|
||||
|
||||
|
|
Loading…
Reference in New Issue