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mb/google/nissa/var/joxer: Config I2C frequency 

Measured the I2C frequency meets spec
- I2C0  (TPM): 949.7 Khz
- I2C1  (TouchScreen): 395.8 Khz
- I2C3  (Audio): 387.4 Khz
- I2C5  (Touchpad): 384.8 Khz

BUG=b:303356736
TEST=USE="project_joxer emerge-nissa coreboot"
and check all I2C devices measurement result

Signed-off-by: Mark Hsieh <mark_hsieh@wistron.corp-partner.google.com>
Change-Id: I17dd1cb7800d00669f86fc6e2b350757695da881
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78218
Reviewed-by: Derek Huang <derekhuang@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
This commit is contained in:
Mark Hsieh 2023-10-04 18:20:35 +08:00 committed by Felix Held
parent b7f602a9fc
commit 0177c95c16
1 changed files with 20 additions and 20 deletions
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40
src/mainboard/google/brya/variants/joxer/overridetree.cb
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@ -92,6 +92,24 @@ chip soc/intel/alderlake
register "common_soc_config" = "{
.i2c[0] = {
.early_init = 1,
.speed = I2C_SPEED_FAST_PLUS,
.speed_config[0] = {
.speed = I2C_SPEED_FAST_PLUS,
.scl_lcnt = 56,
.scl_hcnt = 30,
.sda_hold = 7,
}
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 158,
.scl_hcnt = 79,
.sda_hold = 30,
}
},
.i2c[3] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
@ -100,31 +118,13 @@ chip soc/intel/alderlake
.sda_hold = 7,
}
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 160,
.scl_hcnt = 79,
.sda_hold = 7,
}
},
.i2c[3] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 157,
.scl_hcnt = 79,
.sda_hold = 7,
}
},
.i2c[5] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 152,
.scl_lcnt = 158,
.scl_hcnt = 79,
.sda_hold = 7,
.sda_hold = 40,
}
},
}"