Broadcom BCM54140 Quad SGMII/QSGMII PHY

Supported chips:

  • Broadcom BCM54140

    Datasheet: not public

Author: Michael Walle <michael@walle.cc>

Description

The Broadcom BCM54140 is a Quad SGMII/QSGMII PHY which supports monitoring its die temperature as well as two analog voltages.

The AVDDL is a 1.0V analogue voltage, the AVDDH is a 3.3V analogue voltage. Both voltages and the temperature are measured in a round-robin fashion.

Sysfs entries

The following attributes are supported.

in0_label

“AVDDL”

in0_input

Measured AVDDL voltage.

in0_min

Minimum AVDDL voltage.

in0_max

Maximum AVDDL voltage.

in0_alarm

AVDDL voltage alarm.

in1_label

“AVDDH”

in1_input

Measured AVDDH voltage.

in1_min

Minimum AVDDH voltage.

in1_max

Maximum AVDDH voltage.

in1_alarm

AVDDH voltage alarm.

temp1_input

Die temperature.

temp1_min

Minimum die temperature.

temp1_max

Maximum die temperature.

temp1_alarm

Die temperature alarm.