New patch to review for coreboot: a3f42dd pc80/tpm: allow for cache-as-ram migration

[Aaron Durbin]

Aaron Durbin ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3233

-gerrit

commit a3f42dd864a9ec942f992cc0121ae2889fd3cdac
Author: Aaron Durbin 
Date:   Fri May 10 00:40:56 2013 -0500

pc80/tpm: allow for cache-as-ram migration

As the TPM driver can be accessed in romstage after
    cache-as-ram is torn down use the cache-as-ram migration
    API to dynamically determine the global variable address.

Change-Id: I149d7c130bc3677ed52282095670c07a76c34439
    Signed-off-by: Aaron Durbin 
---
 src/drivers/pc80/tpm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/drivers/pc80/tpm.c b/src/drivers/pc80/tpm.c
index c7b5081..9a4fc09 100644
--- a/src/drivers/pc80/tpm.c
+++ b/src/drivers/pc80/tpm.c
@@ -278,7 +278,7 @@ static u32 tis_probe(void)
    u16 vid, did;
    int i;

-	if (vendor_dev_id)
+	if (car_get_var(vendor_dev_id))
    	return 0;  /* Already probed. */

didvid = tpm_read(0, TIS_REG_DID_VID);
@@ -287,7 +287,7 @@ static u32 tis_probe(void)
    	return TPM_DRIVER_ERR;
    }

-	vendor_dev_id = didvid;
+	car_set_var(vendor_dev_id, didvid);

vid = didvid & 0xffff;
    did = (didvid >> 16) & 0xffff;