[coreboot-gerrit] Change in coreboot[master]: src/arch/x86/acpi.c: Change TPM ACPI Table to support CRB

[Christian Walter (Code Review)]

Christian Walter has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/34333 )

Change subject: src/arch/x86/acpi.c: Change TPM ACPI Table to support CRB
......................................................................

src/arch/x86/acpi.c: Change TPM ACPI Table to support CRB

Change the TPM ACPI Table to support CRB Interface when
selected.

Change-Id: Ide3af348fd4676f2d04e1d0b9ad83f9124e09dcc
Signed-off-by: Christian Walter 
---
M src/arch/x86/acpi.c
1 file changed, 8 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/33/34333/1

diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c
index 8ab993e..18c517a 100644
--- a/src/arch/x86/acpi.c
+++ b/src/arch/x86/acpi.c
@@ -386,10 +386,14 @@

/* Hard to detect for coreboot. Just set it to 0 */
    tpm2->platform_class = 0;
-	/* Must be set to 0 for TIS interface support */
-	tpm2->control_area = 0;
-	/* coreboot only supports the TIS interface driver. */
-	tpm2->start_method = 6;
+	if (CONFIG(CRB_TPM)) {
+		tpm2->control_area = 0xfed40000;
+		tpm2->start_method = 7;
+	} else {
+		/* Must be set to 0 for TIS interface support */
+		tpm2->control_area = 0;
+		tpm2->start_method = 6;
+	}
    memset(tpm2->msp, 0, sizeof(tpm2->msp));

/* Fill the log area size and start address fields. */