mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 07:35:20 +07:00
37ab356417
Added documentation for Infineon PXE1610 driver Signed-off-by: Vijay Khemka <vijaykhemka@fb.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
91 lines
2.4 KiB
Plaintext
91 lines
2.4 KiB
Plaintext
Kernel driver pxe1610
|
|
=====================
|
|
|
|
Supported chips:
|
|
* Infineon PXE1610
|
|
Prefix: 'pxe1610'
|
|
Addresses scanned: -
|
|
Datasheet: Datasheet is not publicly available.
|
|
|
|
* Infineon PXE1110
|
|
Prefix: 'pxe1110'
|
|
Addresses scanned: -
|
|
Datasheet: Datasheet is not publicly available.
|
|
|
|
* Infineon PXM1310
|
|
Prefix: 'pxm1310'
|
|
Addresses scanned: -
|
|
Datasheet: Datasheet is not publicly available.
|
|
|
|
Author: Vijay Khemka <vijaykhemka@fb.com>
|
|
|
|
|
|
Description
|
|
-----------
|
|
|
|
PXE1610/PXE1110 are Multi-rail/Multiphase Digital Controllers
|
|
and compliant to
|
|
-- Intel VR13 DC-DC converter specifications.
|
|
-- Intel SVID protocol.
|
|
Used for Vcore power regulation for Intel VR13 based microprocessors
|
|
-- Servers, Workstations, and High-end desktops
|
|
|
|
PXM1310 is a Multi-rail Controller and it is compliant to
|
|
-- Intel VR13 DC-DC converter specifications.
|
|
-- Intel SVID protocol.
|
|
Used for DDR3/DDR4 Memory power regulation for Intel VR13 and
|
|
IMVP8 based systems
|
|
|
|
|
|
Usage Notes
|
|
-----------
|
|
|
|
This driver does not probe for PMBus devices. You will have
|
|
to instantiate devices explicitly.
|
|
|
|
Example: the following commands will load the driver for an PXE1610
|
|
at address 0x70 on I2C bus #4:
|
|
|
|
# modprobe pxe1610
|
|
# echo pxe1610 0x70 > /sys/bus/i2c/devices/i2c-4/new_device
|
|
|
|
It can also be instantiated by declaring in device tree
|
|
|
|
|
|
Sysfs attributes
|
|
----------------
|
|
|
|
curr1_label "iin"
|
|
curr1_input Measured input current
|
|
curr1_alarm Current high alarm
|
|
|
|
curr[2-4]_label "iout[1-3]"
|
|
curr[2-4]_input Measured output current
|
|
curr[2-4]_crit Critical maximum current
|
|
curr[2-4]_crit_alarm Current critical high alarm
|
|
|
|
in1_label "vin"
|
|
in1_input Measured input voltage
|
|
in1_crit Critical maximum input voltage
|
|
in1_crit_alarm Input voltage critical high alarm
|
|
|
|
in[2-4]_label "vout[1-3]"
|
|
in[2-4]_input Measured output voltage
|
|
in[2-4]_lcrit Critical minimum output voltage
|
|
in[2-4]_lcrit_alarm Output voltage critical low alarm
|
|
in[2-4]_crit Critical maximum output voltage
|
|
in[2-4]_crit_alarm Output voltage critical high alarm
|
|
|
|
power1_label "pin"
|
|
power1_input Measured input power
|
|
power1_alarm Input power high alarm
|
|
|
|
power[2-4]_label "pout[1-3]"
|
|
power[2-4]_input Measured output power
|
|
|
|
temp[1-3]_input Measured temperature
|
|
temp[1-3]_crit Critical high temperature
|
|
temp[1-3]_crit_alarm Chip temperature critical high alarm
|
|
temp[1-3]_max Maximum temperature
|
|
temp[1-3]_max_alarm Chip temperature high alarm
|