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4406d36d MW |
1 | .. SPDX-License-Identifier: GPL-2.0-only |
2 | ||
3 | Broadcom BCM54140 Quad SGMII/QSGMII PHY | |
4 | ======================================= | |
5 | ||
6 | Supported chips: | |
7 | ||
8 | * Broadcom BCM54140 | |
9 | ||
10 | Datasheet: not public | |
11 | ||
12 | Author: Michael Walle <michael@walle.cc> | |
13 | ||
14 | Description | |
15 | ----------- | |
16 | ||
17 | The Broadcom BCM54140 is a Quad SGMII/QSGMII PHY which supports monitoring | |
18 | its die temperature as well as two analog voltages. | |
19 | ||
20 | The AVDDL is a 1.0V analogue voltage, the AVDDH is a 3.3V analogue voltage. | |
21 | Both voltages and the temperature are measured in a round-robin fashion. | |
22 | ||
23 | Sysfs entries | |
24 | ------------- | |
25 | ||
26 | The following attributes are supported. | |
27 | ||
28 | ======================= ======================================================== | |
29 | in0_label "AVDDL" | |
30 | in0_input Measured AVDDL voltage. | |
31 | in0_min Minimum AVDDL voltage. | |
32 | in0_max Maximum AVDDL voltage. | |
33 | in0_alarm AVDDL voltage alarm. | |
34 | ||
35 | in1_label "AVDDH" | |
36 | in1_input Measured AVDDH voltage. | |
37 | in1_min Minimum AVDDH voltage. | |
38 | in1_max Maximum AVDDH voltage. | |
39 | in1_alarm AVDDH voltage alarm. | |
40 | ||
41 | temp1_input Die temperature. | |
42 | temp1_min Minimum die temperature. | |
43 | temp1_max Maximum die temperature. | |
44 | temp1_alarm Die temperature alarm. | |
45 | ======================= ======================================================== |