Change in coreboot[master]: mb/google/guybrush: Enable SOC_AMD_COMMON_BLOCK_I2C_TPM_SHARED_WITH_PSP

[Jan Dabros (Code Review)]

Attention is currently required from: Marshall Dawson, Paul Menzel, Jan Dabros, Felix Held.
Hello build bot (Jenkins), Raul Rangel, Marshall Dawson, Karthik Ramasubramanian, Felix Held,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/61965

to look at the new patch set (#5).

Change subject: mb/google/guybrush: Enable SOC_AMD_COMMON_BLOCK_I2C_TPM_SHARED_WITH_PSP
......................................................................

mb/google/guybrush: Enable SOC_AMD_COMMON_BLOCK_I2C_TPM_SHARED_WITH_PSP

Guybrush platforms have I2C3 controller which is shared between PSP and
X86. In order to enable cooperation, PSP acts as an arbitrator. Enable
SOC_AMD_COMMON_BLOCK_I2C_TPM_SHARED_WITH_PSP, so that proper driver is
binded on the OS side.

With this change in place it is important to use correct kernel version
which has I2C-amdpsp driver [1] enabled. Otherwise, we won't have I2C3
available and thus TPM device available in OS, what may end up as a
serious error - guybrush refuses to boot without access to TPM.

BUG=b:204508404
BRANCH=guybrush
TEST=Build proper kernel and firmware. Run on guybrush and verify TPM
     functionality.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?...

Signed-off-by: Jan Dabros 
Change-Id: I9dd94e47e1a02e790427b67adff84de3eb3ee387
---
M src/mainboard/google/guybrush/Kconfig
1 file changed, 1 insertion(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/65/61965/5