drivers/misc/Kconfig

   1 config CMD_CROS_EC
   2         bool "Enable crosec command"
   3         depends on CROS_EC
   4         help
   5           Enable command-line access to the Chrome OS EC (Embedded
   6           Controller). This provides the 'crosec' command which has
   7           a number of sub-commands for performing EC tasks such as
   8           updating its flash, accessing a small saved context area
   9           and talking to the I2C bus behind the EC (if there is one).
  10
  11 config CROS_EC
  12         bool "Enable Chrome OS EC"
  13         help
  14           Enable access to the Chrome OS EC. This is a separate
  15           microcontroller typically available on a SPI bus on Chromebooks. It
  16           provides access to the keyboard, some internal storage and may
  17           control access to the battery and main PMIC depending on the
  18           device. You can use the 'crosec' command to access it.
  19
  20 config CROS_EC_I2C
  21         bool "Enable Chrome OS EC I2C driver"
  22         depends on CROS_EC
  23         help
  24           Enable I2C access to the Chrome OS EC. This is used on older
  25           ARM Chromebooks such as snow and spring before the standard bus
  26           changed to SPI. The EC will accept commands across the I2C using
  27           a special message protocol, and provide responses.
  28
  29 config CROS_EC_LPC
  30         bool "Enable Chrome OS EC LPC driver"
  31         depends on CROS_EC
  32         help
  33           Enable I2C access to the Chrome OS EC. This is used on x86
  34           Chromebooks such as link and falco. The keyboard is provided
  35           through a legacy port interface, so on x86 machines the main
  36           function of the EC is power and thermal management.
  37
  38 config CROS_EC_SPI
  39         bool "Enable Chrome OS EC SPI driver"
  40         depends on CROS_EC
  41         help
  42           Enable SPI access to the Chrome OS EC. This is used on newer
  43           ARM Chromebooks such as pit, pi and nyan-big. The SPI interface
  44           provides a faster and more robust interface than I2C but the bugs
  45           are less interesting.
  46
  47 config CONFIG_FSL_SEC_MON
  48         bool "Enable FSL SEC_MON Driver"
  49         help
  50           Freescale Security Monitor block is responsible for monitoring
  51           system states.
  52           Security Monitor can be transitioned on any security failures,
  53           like software violations or hardware security violations.