mb/asus/p5q: Document working fan control and FireWire port

Fan control and FireWire work fine on my board.

Signed-off-by: Stefan Ott <stefan@ott.net>
Change-Id: Idc69e902370c4094daef93e843abc6ae564625f3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51360
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Stefan Ott 2021-03-09 02:46:58 +01:00 committed by Felix Held
parent 925e3896d0
commit dc77bc0546
1 changed files with 64 additions and 7 deletions

View File

@ -2,9 +2,7 @@
This page describes how to run coreboot on the [ASUS P5Q] desktop board. This page describes how to run coreboot on the [ASUS P5Q] desktop board.
## TODO ## Working
The following things are working in this coreboot port:
+ PCI slots + PCI slots
+ PCI-e slots + PCI-e slots
@ -15,20 +13,21 @@ The following things are working in this coreboot port:
+ All 4 DIMM slots + All 4 DIMM slots
+ S3 suspend and resume + S3 suspend and resume
+ Red SATA ports + Red SATA ports
+ Fan control through the W83667HG chip
+ FireWire
The following things are still missing from this coreboot port: ## Not working
+ PS/2 mouse support + PS/2 mouse support
+ PATA aka IDE (because of buggy IDE controller) + PATA aka IDE (because of buggy IDE controller)
+ Fan control (will be working on 100% power) + Fan profiles with Q-Fan
+ TPM module (support not implemented) + TPM module (support not implemented)
The following things are untested on this coreboot port: ## Untested
+ S/PDIF + S/PDIF
+ CD Audio In + CD Audio In
+ Floppy disk drive + Floppy disk drive
+ FireWire: PCI device shows up and driver loads, no further test
## Flashing coreboot ## Flashing coreboot
@ -73,5 +72,63 @@ You can flash coreboot into your motherboard using [this guide].
+------------------+---------------------------------------------------+ +------------------+---------------------------------------------------+
``` ```
## Controlling fans
With vendor firmware, the P5Q uses the ATK0110 ACPI device to control its fans
according to the parameters configured in the BIOS setup menu. With coreboot,
one can instead control the Super I/O directly as described in the
[kernel docs]:
+ pwm1 controls fan1 (CHA_FAN1) and fan4 (CHA_FAN2)
+ pwm2 controls fan2 (CPU_FAN)
+ fan3 (PWR_FAN) cannot be controlled
+ temp1 (board) can be used to control fan1 and fan4
+ temp2 (CPU) can be used to control fan2
### Manual fan speed
These commands set the chassis fans to a constant speed:
# Use PWM output
echo 1 >/sys/class/hwmon/hwmon2/pwm1_mode
# Set to manual mode
echo 1 >/sys/class/hwmon/hwmon2/pwm1_enable
# Set relative speed: 0 (stop) to 255 (full)
echo 150 >/sys/class/hwmon/hwmon2/pwm1
### Automatic fan speed
The W83667HG can adjust fan speeds when things get too warm. These settings will
control the chassis fans:
# Set to "Thermal Cruise" mode
echo 2 >/sys/class/hwmon/hwmon2/pwm1_enable
# Target temperature: 60°C
echo 60000 >/sys/class/hwmon/hwmon2/pwm1_target
# Minimum fan speed when spinning up
echo 135 >/sys/class/hwmon/hwmon2/pwm1_start_output
# Minimum fan speed when spinning down
echo 135 >/sys/class/hwmon/hwmon2/pwm1_stop_output
# Tolerance: 2°C
echo 2000 >/sys/class/hwmon/hwmon2/pwm1_tolerance
# Turn fans off after 600 seconds when below defined range
echo 600000 >/sys/class/hwmon/hwmon2/pwm1_stop_time
You can also control the CPU fan with similar rules:
# Switch to "Thermal Cruise" mode
echo 2 >/sys/class/hwmon/hwmon2/pwm2_enable
# Target temperature: 55°C
echo 55000 >/sys/class/hwmon/hwmon2/pwm2_target
# Minimum fan speed when spinning down
echo 50 >/sys/class/hwmon/hwmon2/pwm2_stop_output
# Rate of fan speed change
echo 50 >/sys/class/hwmon/hwmon2/pwm2_step_output
# Maximum fan speed
echo 200 >/sys/class/hwmon/hwmon2/pwm2_max_output
# Tolerance: 2°C
echo 2000 >/sys/class/hwmon/hwmon2/pwm1_tolerance
[ASUS P5Q]: https://www.asus.com/Motherboards/P5Q [ASUS P5Q]: https://www.asus.com/Motherboards/P5Q
[this guide]: https://doc.coreboot.org/flash_tutorial/int_flashrom.html [this guide]: https://doc.coreboot.org/flash_tutorial/int_flashrom.html
[kernel docs]: https://www.kernel.org/doc/Documentation/hwmon/w83627ehf.rst