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#
# TPM subsystem configuration
#
menu "TPM support"
config DM_TPM
bool "Enable driver model for Trusted Platform Module drivers"
depends on DM && TPM
help
Enable driver model for TPMs. The TIS interface (tis_open(),
tis_sendrecv(), etc.) is then implemented by the TPM uclass. Note
that even with driver model only a single TPM is currently
supported, since the tpm library assumes this.
config TPM_TIS_SANDBOX
bool "Enable sandbox TPM driver"
depends on SANDBOX
help
This driver emulates a TPM, providing access to base functions
such as reading and writing TPM private data. This is enough to
support Chrome OS verified boot. Extend functionality is not
implemented.
config TPM_ATMEL_TWI
bool "Enable Atmel TWI TPM device driver"
depends on TPM
help
This driver supports an Atmel TPM device connected on the I2C bus.
The usual tpm operations and the 'tpm' command can be used to talk
to the device using the standard TPM Interface Specification (TIS)
protocol
config TPM_TIS_INFINEON
bool "Enable support for Infineon SLB9635/45 TPMs on I2C"
depends on TPM && DM_I2C
help
This driver supports Infineon TPM devices connected on the I2C bus.
The usual tpm operations and the 'tpm' command can be used to talk
to the device using the standard TPM Interface Specification (TIS)
protocol
config TPM_TIS_I2C_BURST_LIMITATION
bool "Enable I2C burst length limitation"
depends on TPM_TIS_INFINEON
help
Some broken TPMs have a limitation on the number of bytes they can
receive in one message. Enable this option to allow you to set this
option. The can allow a broken TPM to be used by splitting messages
into separate pieces.
config TPM_TIS_I2C_BURST_LIMITATION_LEN
int "Length"
depends on TPM_TIS_I2C_BURST_LIMITATION
help
Use this to set the burst limitation length
config TPM_TIS_LPC
bool "Enable support for Infineon SLB9635/45 TPMs on LPC"
depends on TPM && X86
help
This driver supports Infineon TPM devices connected on the I2C bus.
The usual tpm operations and the 'tpm' command can be used to talk
to the device using the standard TPM Interface Specification (TIS)
protocol
config TPM_AUTH_SESSIONS
bool "Enable TPM authentication session support"
depends on TPM
help
Enable support for authorised (AUTH1) commands as specified in the
TCG Main Specification 1.2. OIAP-authorised versions of the commands
TPM_LoadKey2 and TPM_GetPubKey are provided. Both features are
available using the 'tpm' command, too.
endmenu
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