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| author | Rob Barnes <robbarnes@google.com> | 2021-11-02 17:47:47 -0600 |
|---|---|---|
| committer | Karthik Ramasubramanian <kramasub@google.com> | 2021-11-22 16:30:08 +0000 |
| commit | b35acf9210ffdd458a806ddbbf7deef7aac20fcd (patch) | |
| tree | ae50e227433bc5563e231339a99c1d692c619c8b /src/soc/amd/common/psp_verstage/Kconfig | |
| parent | 2c89d08d7eff7007b4ef48aa333085d20cd74bb9 (diff) | |
| download | coreboot-b35acf9210ffdd458a806ddbbf7deef7aac20fcd.tar.gz coreboot-b35acf9210ffdd458a806ddbbf7deef7aac20fcd.tar.bz2 coreboot-b35acf9210ffdd458a806ddbbf7deef7aac20fcd.zip | |
soc/amd/psp_verstage: Init TPM on S0i3 resume
Add option to initialize the TPM in PSP verstage during s0i3 resume.
This is needed if the TPM is reset in s0i3. FSDL is handling
restoring everything else, so only the minimum TPM initialization is done.
Move aoac and i2c init before psp_verstrage_s0i3_resume becasue i2c
needs to be ready before attempting to restore tpm.
BUG=b:200578885,b:197965075
TEST=Multiple cycles of S0i3 suspend resume. ~66ms of additional delay.
BRANCH=None
Change-Id: Ie511928da6a8b4be62621fd2c4c31a8d1e724d48
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58870
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Diffstat (limited to 'src/soc/amd/common/psp_verstage/Kconfig')
| -rw-r--r-- | src/soc/amd/common/psp_verstage/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/amd/common/psp_verstage/Kconfig b/src/soc/amd/common/psp_verstage/Kconfig index 834abaaa5ffb..6cac8b70ed78 100644 --- a/src/soc/amd/common/psp_verstage/Kconfig +++ b/src/soc/amd/common/psp_verstage/Kconfig @@ -5,3 +5,12 @@ config PSP_VERSTAGE_CCP_DMA Configure PSP Verstage to use Crypto Co-processor (CCP) DMA while accessing the boot device. Select it on platforms which supports using CCP DMA to access the boot device. + +config PSP_INIT_TPM_ON_S0I3_RESUME + bool + depends on TPM2 && VBOOT_STARTS_BEFORE_BOOTBLOCK + default VBOOT_STARTS_BEFORE_BOOTBLOCK + help + If the TPM is reset while in S0i3, it must be reinitialized + during s0i3 resume. This must be performed in PSP verstage since + coreboot is otherwise not involved with s0i3 resume. |