Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 1 | Kernel driver pxe1610 |
| 2 | ===================== |
| 3 | |
| 4 | Supported chips: |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 5 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 6 | * Infineon PXE1610 |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 7 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 8 | Prefix: 'pxe1610' |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 9 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 10 | Addresses scanned: - |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 11 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 12 | Datasheet: Datasheet is not publicly available. |
| 13 | |
| 14 | * Infineon PXE1110 |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 15 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 16 | Prefix: 'pxe1110' |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 17 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 18 | Addresses scanned: - |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 19 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 20 | Datasheet: Datasheet is not publicly available. |
| 21 | |
| 22 | * Infineon PXM1310 |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 23 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 24 | Prefix: 'pxm1310' |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 25 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 26 | Addresses scanned: - |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 27 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 28 | Datasheet: Datasheet is not publicly available. |
| 29 | |
| 30 | Author: Vijay Khemka <vijaykhemka@fb.com> |
| 31 | |
| 32 | |
| 33 | Description |
| 34 | ----------- |
| 35 | |
| 36 | PXE1610/PXE1110 are Multi-rail/Multiphase Digital Controllers |
| 37 | and compliant to |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 38 | |
| 39 | - Intel VR13 DC-DC converter specifications. |
| 40 | - Intel SVID protocol. |
| 41 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 42 | Used for Vcore power regulation for Intel VR13 based microprocessors |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 43 | |
| 44 | - Servers, Workstations, and High-end desktops |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 45 | |
| 46 | PXM1310 is a Multi-rail Controller and it is compliant to |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 47 | |
| 48 | - Intel VR13 DC-DC converter specifications. |
| 49 | - Intel SVID protocol. |
| 50 | |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 51 | Used for DDR3/DDR4 Memory power regulation for Intel VR13 and |
| 52 | IMVP8 based systems |
| 53 | |
| 54 | |
| 55 | Usage Notes |
| 56 | ----------- |
| 57 | |
| 58 | This driver does not probe for PMBus devices. You will have |
| 59 | to instantiate devices explicitly. |
| 60 | |
| 61 | Example: the following commands will load the driver for an PXE1610 |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 62 | at address 0x70 on I2C bus #4:: |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 63 | |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 64 | # modprobe pxe1610 |
| 65 | # echo pxe1610 0x70 > /sys/bus/i2c/devices/i2c-4/new_device |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 66 | |
| 67 | It can also be instantiated by declaring in device tree |
| 68 | |
| 69 | |
| 70 | Sysfs attributes |
| 71 | ---------------- |
| 72 | |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 73 | ====================== ==================================== |
Vijay Khemka | 37ab356 | 2019-05-30 16:11:57 -0700 | [diff] [blame] | 74 | curr1_label "iin" |
| 75 | curr1_input Measured input current |
| 76 | curr1_alarm Current high alarm |
| 77 | |
| 78 | curr[2-4]_label "iout[1-3]" |
| 79 | curr[2-4]_input Measured output current |
| 80 | curr[2-4]_crit Critical maximum current |
| 81 | curr[2-4]_crit_alarm Current critical high alarm |
| 82 | |
| 83 | in1_label "vin" |
| 84 | in1_input Measured input voltage |
| 85 | in1_crit Critical maximum input voltage |
| 86 | in1_crit_alarm Input voltage critical high alarm |
| 87 | |
| 88 | in[2-4]_label "vout[1-3]" |
| 89 | in[2-4]_input Measured output voltage |
| 90 | in[2-4]_lcrit Critical minimum output voltage |
| 91 | in[2-4]_lcrit_alarm Output voltage critical low alarm |
| 92 | in[2-4]_crit Critical maximum output voltage |
| 93 | in[2-4]_crit_alarm Output voltage critical high alarm |
| 94 | |
| 95 | power1_label "pin" |
| 96 | power1_input Measured input power |
| 97 | power1_alarm Input power high alarm |
| 98 | |
| 99 | power[2-4]_label "pout[1-3]" |
| 100 | power[2-4]_input Measured output power |
| 101 | |
| 102 | temp[1-3]_input Measured temperature |
| 103 | temp[1-3]_crit Critical high temperature |
| 104 | temp[1-3]_crit_alarm Chip temperature critical high alarm |
| 105 | temp[1-3]_max Maximum temperature |
| 106 | temp[1-3]_max_alarm Chip temperature high alarm |
Mauro Carvalho Chehab | 899df7b | 2019-07-22 08:07:45 -0300 | [diff] [blame] | 107 | ====================== ==================================== |