1.. SPDX-License-Identifier: GPL-2.0-only 2 3Broadcom BCM54140 Quad SGMII/QSGMII PHY 4======================================= 5 6Supported chips: 7 8 * Broadcom BCM54140 9 10 Datasheet: not public 11 12Author: Michael Walle <michael@walle.cc> 13 14Description 15----------- 16 17The Broadcom BCM54140 is a Quad SGMII/QSGMII PHY which supports monitoring 18its die temperature as well as two analog voltages. 19 20The AVDDL is a 1.0V analogue voltage, the AVDDH is a 3.3V analogue voltage. 21Both voltages and the temperature are measured in a round-robin fashion. 22 23Sysfs entries 24------------- 25 26The following attributes are supported. 27 28======================= ======================================================== 29in0_label "AVDDL" 30in0_input Measured AVDDL voltage. 31in0_min Minimum AVDDL voltage. 32in0_max Maximum AVDDL voltage. 33in0_alarm AVDDL voltage alarm. 34 35in1_label "AVDDH" 36in1_input Measured AVDDH voltage. 37in1_min Minimum AVDDH voltage. 38in1_max Maximum AVDDH voltage. 39in1_alarm AVDDH voltage alarm. 40 41temp1_input Die temperature. 42temp1_min Minimum die temperature. 43temp1_max Maximum die temperature. 44temp1_alarm Die temperature alarm. 45======================= ======================================================== 46