drivers/tpm/Kconfig

   1 #
   2 # TPM subsystem configuration
   3 #
   4
   5 menu "TPM support"
   6
   7 config DM_TPM
   8         bool "Enable driver model for Trusted Platform Module drivers"
   9         depends on DM && TPM
  10         help
  11           Enable driver model for TPMs. The TIS interface (tis_open(),
  12           tis_sendrecv(), etc.) is then implemented by the TPM uclass. Note
  13           that even with driver model only a single TPM is currently
  14           supported, since the tpm library assumes this.
  15
  16 config TPM_TIS_SANDBOX
  17         bool "Enable sandbox TPM driver"
  18         depends on SANDBOX
  19         help
  20           This driver emulates a TPM, providing access to base functions
  21           such as reading and writing TPM private data. This is enough to
  22           support Chrome OS verified boot. Extend functionality is not
  23           implemented.
  24
  25 config TPM_ATMEL_TWI
  26         bool "Enable Atmel TWI TPM device driver"
  27         depends on TPM && DM_I2C
  28         help
  29           This driver supports an Atmel TPM device connected on the I2C bus.
  30           The usual tpm operations and the 'tpm' command can be used to talk
  31           to the device using the standard TPM Interface Specification (TIS)
  32           protocol
  33
  34 config TPM_TIS_INFINEON
  35         bool "Enable support for Infineon SLB9635/45 TPMs on I2C"
  36         depends on TPM && DM_I2C
  37         help
  38           This driver supports Infineon TPM devices connected on the I2C bus.
  39           The usual tpm operations and the 'tpm' command can be used to talk
  40           to the device using the standard TPM Interface Specification (TIS)
  41           protocol
  42
  43 config TPM_TIS_I2C_BURST_LIMITATION
  44         bool "Enable I2C burst length limitation"
  45         depends on TPM_TIS_INFINEON
  46         help
  47           Some broken TPMs have a limitation on the number of bytes they can
  48           receive in one message. Enable this option to allow you to set this
  49           option. The can allow a broken TPM to be used by splitting messages
  50           into separate pieces.
  51
  52 config TPM_TIS_I2C_BURST_LIMITATION_LEN
  53         int "Length"
  54         depends on TPM_TIS_I2C_BURST_LIMITATION
  55         help
  56           Use this to set the burst limitation length
  57
  58 config TPM_TIS_LPC
  59         bool "Enable support for Infineon SLB9635/45 TPMs on LPC"
  60         depends on TPM && X86
  61         help
  62           This driver supports Infineon TPM devices connected on the I2C bus.
  63           The usual tpm operations and the 'tpm' command can be used to talk
  64           to the device using the standard TPM Interface Specification (TIS)
  65           protocol
  66
  67 config TPM_AUTH_SESSIONS
  68         bool "Enable TPM authentication session support"
  69         depends on TPM
  70         help
  71           Enable support for authorised (AUTH1) commands as specified in the
  72           TCG Main Specification 1.2. OIAP-authorised versions of the commands
  73           TPM_LoadKey2 and TPM_GetPubKey are provided. Both features are
  74           available using the 'tpm' command, too.
  75
  76 endmenu