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| author | Simon Glass <sjg@chromium.org> | 2018-11-23 21:29:32 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2018-12-05 06:01:34 -0700 |
| commit | 0a60a0a65fa98f265c79f3928d8628aabcba8a92 (patch) | |
| tree | 5a7c28336bc8ab523acbff7c67d56478f9aef249 /include/tpm-common.h | |
| parent | 40e9ede1dcd852a97d772b8d592e36195c5d8b80 (diff) | |
| download | u-boot-0a60a0a65fa98f265c79f3928d8628aabcba8a92.tar.gz u-boot-0a60a0a65fa98f265c79f3928d8628aabcba8a92.tar.xz u-boot-0a60a0a65fa98f265c79f3928d8628aabcba8a92.zip | |
tpm: Remove use of build-time TPM versions
There is only one place in the code which assumes at build-time that we
are using either a v1 or a v2 TPM. Fix this up and add a new function to
return the version of a TPM.
Supported TPM versions (v1 and v2) can be enabled independently and it is
possible to use both versions at once. This is useful for sandbox when
running tests.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/tpm-common.h')
| -rw-r--r-- | include/tpm-common.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/tpm-common.h b/include/tpm-common.h index 3d88b44db7..91a1484b3d 100644 --- a/include/tpm-common.h +++ b/include/tpm-common.h @@ -274,4 +274,15 @@ static inline cmd_tbl_t *get_tpm2_commands(unsigned int *size) } #endif +/** + * tpm_get_version() - Find the version of a TPM + * + * This checks the uclass data for a TPM device and returns the version number + * it supports. + * + * @dev: TPM device + * @return version number (TPM_V1 or TPMV2) + */ +enum tpm_version tpm_get_version(struct udevice *dev); + #endif /* __TPM_COMMON_H */ |