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

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1.Change the TPM I2C freqeuncy to 1 MHz for xivu.
2.Config same settings as the baseboard for I2C buses 1-5.

BUG=b:249953477
TEST=On xivu, all timing requirements in the spec are met.
Frequencies:
1. I2C0 (TPM): 974.3 Khz
2. I2C1 (TouchScreen); 375.5 Khz
3. I2C3 （Audio): 389.0 Khz
4. I2C5 (Touchpad): 388.5 Khz

Signed-off-by: Ian Feng <ian_feng@compal.corp-partner.google.com>
Change-Id: I33f712c14978b95f3a4da82d6f1f5fbae1283b17
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68071
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Reka Norman <rekanorman@chromium.org>
Reviewed-by: Frank Wu <frank_wu@compal.corp-partner.google.com>
This commit is contained in:
Ian Feng
2022-10-03 12:28:31 +08:00
committed by Felix Held
parent 30e8fc1f4e
commit 9ace946c23
1 changed files with 49 additions and 0 deletions
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49
src/mainboard/google/brya/variants/xivu/overridetree.cb
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@@ -41,6 +41,55 @@ chip soc/intel/alderlake
#| I2C3 | Audio |
#| I2C5 | Trackpad |
#+-------------------+---------------------------+
register "common_soc_config" = "{
.i2c[0] = {
.early_init = 1,
.speed = I2C_SPEED_FAST_PLUS,
.speed_config[0] = {
.speed = I2C_SPEED_FAST_PLUS,
.scl_lcnt = 55,
.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 = 7,
}
},
.i2c[2] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 158,
.scl_hcnt = 79,
.sda_hold = 7,
}
},
.i2c[3] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 158,
.scl_hcnt = 79,
.sda_hold = 7,
}
},
.i2c[5] = {
.speed = I2C_SPEED_FAST,
.speed_config[0] = {
.speed = I2C_SPEED_FAST,
.scl_lcnt = 158,
.scl_hcnt = 79,
.sda_hold = 7,
}
},
}"
device domain 0 on
device ref dtt on
chip drivers/intel/dptf