1 .. SPDX-License-Identifier: GPL-2.0 1 .. SPDX-License-Identifier: GPL-2.0
2 2
3 Kernel driver intel-m10-bmc-hwmon 3 Kernel driver intel-m10-bmc-hwmon
4 ================================= 4 =================================
5 5
6 Supported chips: 6 Supported chips:
7 7
8 * Intel MAX 10 BMC for Intel PAC N3000 8 * Intel MAX 10 BMC for Intel PAC N3000
9 9
10 Prefix: 'n3000bmc-hwmon' 10 Prefix: 'n3000bmc-hwmon'
11 11
12 Author: Xu Yilun <yilun.xu@intel.com> 12 Author: Xu Yilun <yilun.xu@intel.com>
13 13
14 14
15 Description 15 Description
16 ----------- 16 -----------
17 17
18 This driver adds the temperature, voltage, cur 18 This driver adds the temperature, voltage, current and power reading
19 support for the Intel MAX 10 Board Management 19 support for the Intel MAX 10 Board Management Controller (BMC) chip.
20 The BMC chip is integrated in some Intel Progr 20 The BMC chip is integrated in some Intel Programmable Acceleration
21 Cards (PAC). It connects to a set of sensor ch 21 Cards (PAC). It connects to a set of sensor chips to monitor the
22 sensor data of different components on the boa 22 sensor data of different components on the board. The BMC firmware is
23 responsible for sensor data sampling and recor 23 responsible for sensor data sampling and recording in shared
24 registers. The host driver reads the sensor da 24 registers. The host driver reads the sensor data from these shared
25 registers and exposes them to users as hwmon i 25 registers and exposes them to users as hwmon interfaces.
26 26
27 The BMC chip is implemented using the Intel MA 27 The BMC chip is implemented using the Intel MAX 10 CPLD. It could be
28 reprogramed to some variants in order to suppo 28 reprogramed to some variants in order to support different Intel
29 PACs. The driver is designed to be able to dis 29 PACs. The driver is designed to be able to distinguish between the
30 variants, but now it only supports the BMC for 30 variants, but now it only supports the BMC for Intel PAC N3000.
31 31
32 32
33 Sysfs attributes 33 Sysfs attributes
34 ---------------- 34 ----------------
35 35
36 The following attributes are supported: 36 The following attributes are supported:
37 37
38 - Intel MAX 10 BMC for Intel PAC N3000: 38 - Intel MAX 10 BMC for Intel PAC N3000:
39 39
40 ======================= ====================== 40 ======================= =======================================================
41 tempX_input Temperature of the com 41 tempX_input Temperature of the component (specified by tempX_label)
42 tempX_max Temperature maximum se 42 tempX_max Temperature maximum setpoint of the component
43 tempX_crit Temperature critical s 43 tempX_crit Temperature critical setpoint of the component
44 tempX_max_hyst Hysteresis for tempera 44 tempX_max_hyst Hysteresis for temperature maximum of the component
45 tempX_crit_hyst Hysteresis for tempera 45 tempX_crit_hyst Hysteresis for temperature critical of the component
46 temp1_label "Board Temperature" 46 temp1_label "Board Temperature"
47 temp2_label "FPGA Die Temperature" 47 temp2_label "FPGA Die Temperature"
48 temp3_label "QSFP0 Temperature" 48 temp3_label "QSFP0 Temperature"
49 temp4_label "QSFP1 Temperature" 49 temp4_label "QSFP1 Temperature"
50 temp5_label "Retimer A Temperature 50 temp5_label "Retimer A Temperature"
51 temp6_label "Retimer A SerDes Temp 51 temp6_label "Retimer A SerDes Temperature"
52 temp7_label "Retimer B Temperature 52 temp7_label "Retimer B Temperature"
53 temp8_label "Retimer B SerDes Temp 53 temp8_label "Retimer B SerDes Temperature"
54 54
55 inX_input Measured voltage of th 55 inX_input Measured voltage of the component (specified by
56 inX_label) 56 inX_label)
57 in0_label "QSFP0 Supply Voltage" 57 in0_label "QSFP0 Supply Voltage"
58 in1_label "QSFP1 Supply Voltage" 58 in1_label "QSFP1 Supply Voltage"
59 in2_label "FPGA Core Voltage" 59 in2_label "FPGA Core Voltage"
60 in3_label "12V Backplane Voltage 60 in3_label "12V Backplane Voltage"
61 in4_label "1.2V Voltage" 61 in4_label "1.2V Voltage"
62 in5_label "12V AUX Voltage" 62 in5_label "12V AUX Voltage"
63 in6_label "1.8V Voltage" 63 in6_label "1.8V Voltage"
64 in7_label "3.3V Voltage" 64 in7_label "3.3V Voltage"
65 65
66 currX_input Measured current of th 66 currX_input Measured current of the component (specified by
67 currX_label) 67 currX_label)
68 curr1_label "FPGA Core Current" 68 curr1_label "FPGA Core Current"
69 curr2_label "12V Backplane Current 69 curr2_label "12V Backplane Current"
70 curr3_label "12V AUX Current" 70 curr3_label "12V AUX Current"
71 71
72 powerX_input Measured power of the 72 powerX_input Measured power of the component (specified by
73 powerX_label) 73 powerX_label)
74 power1_label "Board Power" 74 power1_label "Board Power"
75 75
76 ======================= ====================== 76 ======================= =======================================================
77 77
78 All the attributes are read-only. 78 All the attributes are read-only.
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