xref: /openbmc/u-boot/drivers/tpm/Kconfig (revision aefb8f4c)
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 && DM_I2C
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 I2C 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
67endmenu
68