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mb/google/beltino: Set initial fan PWM to 30%

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Recent changes to the ITE 8772F SIO code caused the initial fan PWM
to change from 0 to 50%; set it to 30% to reduce fan noise while
still providing some temp control before the OS/ACPI takes over.

TEST=build/boot google/beltino to payload, verify fan noise is
negligible.

Change-Id: I0177235d73e051f02b5333cf1d735556382b919f
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81513
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Matt DeVillier
2024-03-25 10:10:31 -05:00
committed by Nico Huber
parent e45d6bfd8a
commit b8c451e375
1 changed files with 1 additions and 0 deletions
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src/mainboard/google/beltino/devicetree.cb
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@@ -84,6 +84,7 @@ chip northbridge/intel/haswell
register "TMPIN3.mode" = "THERMAL_PECI" register "TMPIN3.mode" = "THERMAL_PECI"
# Enable FAN2 # Enable FAN2
register "FAN2.mode" = "FAN_SMART_SOFTWARE" register "FAN2.mode" = "FAN_SMART_SOFTWARE"
register "FAN2.smart.pwm_start" = "30"
device pnp 2e.0 off end # FDC device pnp 2e.0 off end # FDC
device pnp 2e.1 on # Serial Port 1 device pnp 2e.1 on # Serial Port 1