2 # TPM subsystem configuration
8 bool "Enable driver model for Trusted Platform Module drivers"
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.
16 config TPM_TIS_SANDBOX
17 bool "Enable sandbox TPM driver"
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
26 bool "Enable Atmel TWI TPM device driver"
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)
35 bool "Enable support for Infineon SLB9635/45 TPMs on I2C"
36 depends on TPM && DM_I2C
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)
43 config TPM_TIS_I2C_BURST_LIMITATION
44 bool "Enable I2C burst length limitation"
45 depends on TPM_TIS_I2C
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
52 config TPM_TIS_I2C_BURST_LIMITATION_LEN
54 depends on TPM_TIS_I2C_BURST_LIMITATION
56 Use this to set the burst limitation length
59 bool "Enable support for Infineon SLB9635/45 TPMs on LPC"
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)
67 config TPM_AUTH_SESSIONS
68 bool "Enable TPM authentication session support"
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.