tree 619b69f01b827e665af12b1b390488cf48f79ba1
parent ef886c4ede4fd09558d568e13376246fe13badf3
author Michał Żygowski <michal.zygowski@3mdeb.com> 1664876667 +0200
committer Felix Held <felix-coreboot@felixheld.de> 1676674614 +0000

mb/protectli/vault_cml: Disable PTT and SPI TPM

The platform supports a discrete LPC TPM module. However, ME firmware
enables PTT by default and descriptor is configured for SPI TPM on the
platform's original firmware. So disabling PTT in ME is not enough,
because it falls back to SPI TPM. Ensure PTT is disabled in ME and SPI
TPM is disabled in descriptor soft straps.

TEST=Boot VP4650 and see LPC TPM is recognized by coreboot.

Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: I3764e085f2eb5ae957b9087d150320def7af4fc6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68920
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com>