lochnagar.rst 3.8 KB

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  1. Kernel Driver Lochnagar
  2. =======================
  3. Supported systems:
  4. * Cirrus Logic : Lochnagar 2
  5. Author: Lucas A. Tanure Alves
  6. Description
  7. -----------
  8. Lochnagar 2 features built-in Current Monitor circuitry that allows for the
  9. measurement of both voltage and current on up to eight of the supply voltage
  10. rails provided to the minicards. The Current Monitor does not require any
  11. hardware modifications or external circuitry to operate.
  12. The current and voltage measurements are obtained through the standard register
  13. map interface to the Lochnagar board controller, and can therefore be monitored
  14. by software.
  15. Sysfs attributes
  16. ----------------
  17. ======================= =======================================================
  18. temp1_input The Lochnagar board temperature (milliCelsius)
  19. in0_input Measured voltage for DBVDD1 (milliVolts)
  20. in0_label "DBVDD1"
  21. curr1_input Measured current for DBVDD1 (milliAmps)
  22. curr1_label "DBVDD1"
  23. power1_average Measured average power for DBVDD1 (microWatts)
  24. power1_average_interval Power averaging time input valid from 1 to 1708mS
  25. power1_label "DBVDD1"
  26. in1_input Measured voltage for 1V8 DSP (milliVolts)
  27. in1_label "1V8 DSP"
  28. curr2_input Measured current for 1V8 DSP (milliAmps)
  29. curr2_label "1V8 DSP"
  30. power2_average Measured average power for 1V8 DSP (microWatts)
  31. power2_average_interval Power averaging time input valid from 1 to 1708mS
  32. power2_label "1V8 DSP"
  33. in2_input Measured voltage for 1V8 CDC (milliVolts)
  34. in2_label "1V8 CDC"
  35. curr3_input Measured current for 1V8 CDC (milliAmps)
  36. curr3_label "1V8 CDC"
  37. power3_average Measured average power for 1V8 CDC (microWatts)
  38. power3_average_interval Power averaging time input valid from 1 to 1708mS
  39. power3_label "1V8 CDC"
  40. in3_input Measured voltage for VDDCORE DSP (milliVolts)
  41. in3_label "VDDCORE DSP"
  42. curr4_input Measured current for VDDCORE DSP (milliAmps)
  43. curr4_label "VDDCORE DSP"
  44. power4_average Measured average power for VDDCORE DSP (microWatts)
  45. power4_average_interval Power averaging time input valid from 1 to 1708mS
  46. power4_label "VDDCORE DSP"
  47. in4_input Measured voltage for AVDD 1V8 (milliVolts)
  48. in4_label "AVDD 1V8"
  49. curr5_input Measured current for AVDD 1V8 (milliAmps)
  50. curr5_label "AVDD 1V8"
  51. power5_average Measured average power for AVDD 1V8 (microWatts)
  52. power5_average_interval Power averaging time input valid from 1 to 1708mS
  53. power5_label "AVDD 1V8"
  54. curr6_input Measured current for SYSVDD (milliAmps)
  55. curr6_label "SYSVDD"
  56. power6_average Measured average power for SYSVDD (microWatts)
  57. power6_average_interval Power averaging time input valid from 1 to 1708mS
  58. power6_label "SYSVDD"
  59. in6_input Measured voltage for VDDCORE CDC (milliVolts)
  60. in6_label "VDDCORE CDC"
  61. curr7_input Measured current for VDDCORE CDC (milliAmps)
  62. curr7_label "VDDCORE CDC"
  63. power7_average Measured average power for VDDCORE CDC (microWatts)
  64. power7_average_interval Power averaging time input valid from 1 to 1708mS
  65. power7_label "VDDCORE CDC"
  66. in7_input Measured voltage for MICVDD (milliVolts)
  67. in7_label "MICVDD"
  68. curr8_input Measured current for MICVDD (milliAmps)
  69. curr8_label "MICVDD"
  70. power8_average Measured average power for MICVDD (microWatts)
  71. power8_average_interval Power averaging time input valid from 1 to 1708mS
  72. power8_label "MICVDD"
  73. ======================= =======================================================
  74. Note:
  75. It is not possible to measure voltage on the SYSVDD rail.