1a7d660bcSSimon Glass# 2a7d660bcSSimon Glass# TPM subsystem configuration 3a7d660bcSSimon Glass# 4a7d660bcSSimon Glass 5a7d660bcSSimon Glassmenu "TPM support" 6a7d660bcSSimon Glass 7527a0727SSimon Glassconfig TPM_TIS_SANDBOX 8527a0727SSimon Glass bool "Enable sandbox TPM driver" 9a7d660bcSSimon Glass depends on SANDBOX 10527a0727SSimon Glass help 11527a0727SSimon Glass This driver emulates a TPM, providing access to base functions 12527a0727SSimon Glass such as reading and writing TPM private data. This is enough to 13527a0727SSimon Glass support Chrome OS verified boot. Extend functionality is not 14527a0727SSimon Glass implemented. 15a7d660bcSSimon Glass 16a7d660bcSSimon Glassconfig TPM_ATMEL_TWI 17a7d660bcSSimon Glass bool "Enable Atmel TWI TPM device driver" 18*2419cd16SSimon Glass depends on TPM && DM_I2C 19a7d660bcSSimon Glass help 20a7d660bcSSimon Glass This driver supports an Atmel TPM device connected on the I2C bus. 21a7d660bcSSimon Glass The usual tpm operations and the 'tpm' command can be used to talk 22a7d660bcSSimon Glass to the device using the standard TPM Interface Specification (TIS) 23a7d660bcSSimon Glass protocol 24a7d660bcSSimon Glass 250766ad2fSChristophe Ricardconfig TPM_TIS_INFINEON 26a7d660bcSSimon Glass bool "Enable support for Infineon SLB9635/45 TPMs on I2C" 27*2419cd16SSimon Glass depends on TPM && DM_I2C 28a7d660bcSSimon Glass help 29a7d660bcSSimon Glass This driver supports Infineon TPM devices connected on the I2C bus. 30a7d660bcSSimon Glass The usual tpm operations and the 'tpm' command can be used to talk 31a7d660bcSSimon Glass to the device using the standard TPM Interface Specification (TIS) 32a7d660bcSSimon Glass protocol 33a7d660bcSSimon Glass 34a7d660bcSSimon Glassconfig TPM_TIS_I2C_BURST_LIMITATION 35a7d660bcSSimon Glass bool "Enable I2C burst length limitation" 360766ad2fSChristophe Ricard depends on TPM_TIS_INFINEON 37a7d660bcSSimon Glass help 38a7d660bcSSimon Glass Some broken TPMs have a limitation on the number of bytes they can 39a7d660bcSSimon Glass receive in one message. Enable this option to allow you to set this 40a7d660bcSSimon Glass option. The can allow a broken TPM to be used by splitting messages 41a7d660bcSSimon Glass into separate pieces. 42a7d660bcSSimon Glass 43a7d660bcSSimon Glassconfig TPM_TIS_I2C_BURST_LIMITATION_LEN 44a7d660bcSSimon Glass int "Length" 45a7d660bcSSimon Glass depends on TPM_TIS_I2C_BURST_LIMITATION 46a7d660bcSSimon Glass help 47a7d660bcSSimon Glass Use this to set the burst limitation length 48a7d660bcSSimon Glass 49a7d660bcSSimon Glassconfig TPM_TIS_LPC 50a7d660bcSSimon Glass bool "Enable support for Infineon SLB9635/45 TPMs on LPC" 51*2419cd16SSimon Glass depends on TPM && X86 52a7d660bcSSimon Glass help 53a7d660bcSSimon Glass This driver supports Infineon TPM devices connected on the I2C bus. 54a7d660bcSSimon Glass The usual tpm operations and the 'tpm' command can be used to talk 55a7d660bcSSimon Glass to the device using the standard TPM Interface Specification (TIS) 56a7d660bcSSimon Glass protocol 57a7d660bcSSimon Glass 58a7d660bcSSimon Glassconfig TPM_AUTH_SESSIONS 59a7d660bcSSimon Glass bool "Enable TPM authentication session support" 60a7d660bcSSimon Glass depends on TPM 61a7d660bcSSimon Glass help 62a7d660bcSSimon Glass Enable support for authorised (AUTH1) commands as specified in the 63a7d660bcSSimon Glass TCG Main Specification 1.2. OIAP-authorised versions of the commands 64a7d660bcSSimon Glass TPM_LoadKey2 and TPM_GetPubKey are provided. Both features are 65a7d660bcSSimon Glass available using the 'tpm' command, too. 66a7d660bcSSimon Glass 67a7d660bcSSimon Glassendmenu 68