1# 2# TPM subsystem configuration 3# 4 5menu "TPM support" 6 7config TPM_TIS_SANDBOX 8 bool "Enable sandbox TPM driver" 9 depends on SANDBOX 10 help 11 This driver emulates a TPM, providing access to base functions 12 such as reading and writing TPM private data. This is enough to 13 support Chrome OS verified boot. Extend functionality is not 14 implemented. 15 16config TPM_ATMEL_TWI 17 bool "Enable Atmel TWI TPM device driver" 18 depends on TPM 19 help 20 This driver supports an Atmel TPM device connected on the I2C bus. 21 The usual tpm operations and the 'tpm' command can be used to talk 22 to the device using the standard TPM Interface Specification (TIS) 23 protocol 24 25config TPM_TIS_INFINEON 26 bool "Enable support for Infineon SLB9635/45 TPMs on I2C" 27 depends on TPM && DM_I2C 28 help 29 This driver supports Infineon TPM devices 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 34config TPM_TIS_I2C_BURST_LIMITATION 35 bool "Enable I2C burst length limitation" 36 depends on TPM_TIS_INFINEON 37 help 38 Some broken TPMs have a limitation on the number of bytes they can 39 receive in one message. Enable this option to allow you to set this 40 option. The can allow a broken TPM to be used by splitting messages 41 into separate pieces. 42 43config TPM_TIS_I2C_BURST_LIMITATION_LEN 44 int "Length" 45 depends on TPM_TIS_I2C_BURST_LIMITATION 46 help 47 Use this to set the burst limitation length 48 49config TPM_TIS_LPC 50 bool "Enable support for Infineon SLB9635/45 TPMs on LPC" 51 depends on TPM && X86 52 help 53 This driver supports Infineon TPM devices connected on the LPC bus. 54 The usual tpm operations and the 'tpm' command can be used to talk 55 to the device using the standard TPM Interface Specification (TIS) 56 protocol 57 58config TPM_AUTH_SESSIONS 59 bool "Enable TPM authentication session support" 60 depends on TPM 61 help 62 Enable support for authorised (AUTH1) commands as specified in the 63 TCG Main Specification 1.2. OIAP-authorised versions of the commands 64 TPM_LoadKey2 and TPM_GetPubKey are provided. Both features are 65 available using the 'tpm' command, too. 66 67config TPM_ST33ZP24_I2C 68 bool "STMicroelectronics ST33ZP24 I2C TPM" 69 depends on TPM && DM_I2C 70 ---help--- 71 This driver supports STMicroelectronics TPM devices connected on the I2C bus. 72 The usual tpm operations and the 'tpm' command can be used to talk 73 to the device using the standard TPM Interface Specification (TIS) 74 protocol 75 76config TPM_ST33ZP24_SPI 77 bool "STMicroelectronics ST33ZP24 SPI TPM" 78 depends on TPM && DM_SPI 79 ---help--- 80 This driver supports STMicroelectronics TPM devices connected on the SPI bus. 81 The usual tpm operations and the 'tpm' command can be used to talk 82 to the device using the standard TPM Interface Specification (TIS) 83 protocol 84 85endmenu 86