[U-Boot] [PATCH] tpm: Add TPM command library and utility commands

[Wolfgang Denk]

Dear Che-Liang Chiou,

In message <1360371227-13404-1-git-send-email-clchiou at chromium.org> you wrote:
> TPM command library implements a subset of TPM commands defined in TCG
> Main Specification 1.2 that are useful for implementing secure boot.
> More TPM commands could be added out of necessity.
> 
> You may exercise these commands through the 'tpm' command.  However,
> the 'tpm' command is too primitive for writing secure boot in command
> interpreter scripts; so the utility commands 'tpmutil' is provided to
> make this task easier.
> 
> For example, to define a counter in TPM non-volatile storage and
> initialize it to zero:
> 
> $ tpm init
> $ tpm startup TPM_ST_CLEAR
> $ tpmutil nv_define d 0x1001 0x1
> $ tpmutil nv_write d 0x1001 0

This is extremely ugly?  Why can we not implement both parts of the
functionality in a single command (tpm) ?

Please fix!

Best regards,

Wolfgang Denk

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