| Simon Glass | a7d660b | 2015-08-22 18:31:19 -0600 | [diff] [blame] | 1 | # |
| 2 | # TPM subsystem configuration |
| 3 | # |
| 4 | |
| 5 | menu "TPM support" |
| 6 | |
| Simon Glass | f255d31 | 2015-08-22 18:31:31 -0600 | [diff] [blame] | 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 | |
| Simon Glass | 527a072 | 2015-03-06 13:19:07 -0700 | [diff] [blame] | 16 | config TPM_TIS_SANDBOX |
| 17 | bool "Enable sandbox TPM driver" |
| Simon Glass | a7d660b | 2015-08-22 18:31:19 -0600 | [diff] [blame] | 18 | depends on SANDBOX |
| Simon Glass | 527a072 | 2015-03-06 13:19:07 -0700 | [diff] [blame] | 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. |
| Simon Glass | a7d660b | 2015-08-22 18:31:19 -0600 | [diff] [blame] | 24 | |
| 25 | config TPM_ATMEL_TWI |
| 26 | bool "Enable Atmel TWI TPM device driver" |
| 27 | depends on TPM |
| 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 | |
| Christophe Ricard | 0766ad2 | 2015-10-06 22:54:41 +0200 | [diff] [blame^] | 34 | config TPM_TIS_INFINEON |
| Simon Glass | a7d660b | 2015-08-22 18:31:19 -0600 | [diff] [blame] | 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" |
| Christophe Ricard | 0766ad2 | 2015-10-06 22:54:41 +0200 | [diff] [blame^] | 45 | depends on TPM_TIS_INFINEON |
| Simon Glass | a7d660b | 2015-08-22 18:31:19 -0600 | [diff] [blame] | 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 |