# # TPM subsystem configuration # menu "TPM support" 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_I2C 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_I2C 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