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![Miquel Raynal](/assets/img/avatar_default.png)
Because both major revisions are not compatible at all, let's make them mutually exclusive in Kconfig. This way we will be sure, when using a command or a library function that it is supported by the right revision. Current drivers are currently prefixed by "tpm_", we will prefix TPMv2.x files by "tpm2_" to make the distinction without moving everything. The Kconfig menu about TPM drivers is now divided into two sections, one for each specification. Compliant drivers with one specification will only show up if this specification _only_ has been selected, otherwise a comment is displayed. Once a driver is selected by the user, it selects automatically a boolean value, that is needed in order to activate the TPM commands. Selecting the TPM commands will automatically select the right command/library files. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> [trini: Rework deps as TPM_V1 and TPM_V2 depend on TPM, drop TPM_DRIVER_SELECTED] Signed-off-by: Tom Rini <trini@konsulko.com>
134 lines
4.1 KiB
Plaintext
134 lines
4.1 KiB
Plaintext
#
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# TPM subsystem configuration
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#
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menu "TPM support"
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comment "Please select only one TPM revision"
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depends on TPM_V1 && TPM_V2
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config TPM_V1
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bool "TPMv1.x support"
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depends on TPM
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default y
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help
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Major TPM versions are not compatible at all, choose either
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one or the other. This option enables TPMv1.x drivers/commands.
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if TPM_V1 && !TPM_V2
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config TPM_TIS_SANDBOX
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bool "Enable sandbox TPM driver"
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depends on TPM_V1 && SANDBOX
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help
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This driver emulates a TPM, providing access to base functions
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such as reading and writing TPM private data. This is enough to
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support Chrome OS verified boot. Extend functionality is not
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implemented.
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config TPM_ATMEL_TWI
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bool "Enable Atmel TWI TPM device driver"
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depends on TPM_V1
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help
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This driver supports an Atmel TPM device connected on the I2C bus.
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The usual tpm operations and the 'tpm' command can be used to talk
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to the device using the standard TPM Interface Specification (TIS)
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protocol
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config TPM_TIS_INFINEON
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bool "Enable support for Infineon SLB9635/45 TPMs on I2C"
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depends on TPM_V1 && DM_I2C
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help
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This driver supports Infineon TPM devices connected on the I2C bus.
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The usual tpm operations and the 'tpm' command can be used to talk
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to the device using the standard TPM Interface Specification (TIS)
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protocol
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config TPM_TIS_I2C_BURST_LIMITATION
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bool "Enable I2C burst length limitation"
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depends on TPM_V1 && TPM_TIS_INFINEON
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help
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Some broken TPMs have a limitation on the number of bytes they can
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receive in one message. Enable this option to allow you to set this
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option. The can allow a broken TPM to be used by splitting messages
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into separate pieces.
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config TPM_TIS_I2C_BURST_LIMITATION_LEN
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int "Length"
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depends on TPM_TIS_I2C_BURST_LIMITATION
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help
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Use this to set the burst limitation length
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config TPM_TIS_LPC
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bool "Enable support for Infineon SLB9635/45 TPMs on LPC"
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depends on TPM_V1 && X86
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help
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This driver supports Infineon TPM devices connected on the LPC bus.
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The usual tpm operations and the 'tpm' command can be used to talk
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to the device using the standard TPM Interface Specification (TIS)
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protocol
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config TPM_AUTH_SESSIONS
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bool "Enable TPM authentication session support"
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depends on TPM_V1
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help
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Enable support for authorised (AUTH1) commands as specified in the
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TCG Main Specification 1.2. OIAP-authorised versions of the commands
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TPM_LoadKey2 and TPM_GetPubKey are provided. Both features are
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available using the 'tpm' command, too.
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config TPM_ST33ZP24_I2C
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bool "STMicroelectronics ST33ZP24 I2C TPM"
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depends on TPM_V1 && DM_I2C
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---help---
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This driver supports STMicroelectronics TPM devices connected on the I2C bus.
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The usual tpm operations and the 'tpm' command can be used to talk
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to the device using the standard TPM Interface Specification (TIS)
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protocol
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config TPM_ST33ZP24_SPI
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bool "STMicroelectronics ST33ZP24 SPI TPM"
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depends on TPM_V1 && DM_SPI
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---help---
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This driver supports STMicroelectronics TPM devices connected on the SPI bus.
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The usual tpm operations and the 'tpm' command can be used to talk
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to the device using the standard TPM Interface Specification (TIS)
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protocol
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config TPM_FLUSH_RESOURCES
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bool "Enable TPM resource flushing support"
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depends on TPM_V1
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help
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Enable support to flush specific resources (e.g. keys) from the TPM.
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The functionality is available via the 'tpm' command as well.
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config TPM_LOAD_KEY_BY_SHA1
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bool "Enable TPM key loading by SHA1 support"
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depends on TPM_V1
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help
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Enable support to load keys into the TPM by identifying
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their parent via the public key's SHA1 hash.
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The functionality is available via the 'tpm' command as well.
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config TPM_LIST_RESOURCES
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bool "Enable TPM resource listing support"
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depends on TPM_V1
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help
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Enable support to list specific resources (e.g. keys) within the TPM.
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The functionality is available via the 'tpm' command as well.
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endif # TPM_V1
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config TPM_V2
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bool "TPMv2.x support"
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depends on TPM
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help
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Major TPM versions are not compatible at all, choose either
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one or the other. This option enables TPMv2.x drivers/commands.
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if TPM_V2 && !TPM_V1
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endif # TPM_V2
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endmenu
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