tree 8d61dc213de3090ede364c566ac1fdb3d852a27b
parent 6fa56e93679631b0d23c88e962b9e40c97971942
author Abhi Singh <abhi.singh@arm.com> 1731022778 -0600
committer Abhi Singh <Abhi.Singh@arm.com> 1742324343 +0100

feat(rpi3): add dTPM backed measured boot

In BL1 and BL2 add support for the use of an Infineon Optiga SLB 9670
TPM2.0.
The platform utilizes the gpio_spi.c driver to bit-bang gpio pins in
order to send commands and receive responses to/from the TPM.
In BL1 & BL2:
-utilize TPM commands to initialize the gpio pins for "spi"
 communication, and extend image hashes to the TPM's PCR 0,
 at the end of the measured boot phase for the bootloader,
 the TPM locality is released.
-Bl1 executes a tpm_startup command in order to flush the TPM.

Change-Id: I2f2fa28f60a262a0aa25a674c72a9904b3cf4d8a
Signed-off-by: Tushar Khandelwal <tushar.khandelwal@arm.com>
Signed-off-by: Abhi Singh <abhi.singh@arm.com>