|
Now that multiple TPM drivers may be compiled in, it is possible to
support switching between fTPM and dTPM.
The patch adds:
- Device tree entry for PC80 discrete TPM
- TPM PIRQ# GPIO active low routed to IOAPIC for TPM interrupt
- MEMORY_MAPPED_TPM option to board's Kconfig to enable PC80 TPM driver
When the ME is disabled, e.g. via HECI command, chipset will route the
TPM traffic to SPI automatically. When a SPI TPM is connected to the
JTPM1 on the board, it will be probed successfully and initialized
in place of inactive PTT/fTPM.
Change-Id: Ie6e7026b6f1cec842bce4ef40b6db7feb75200e3
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80456
Reviewed-by: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
|
