From cb997d3710900d5950d244edd607e25bb45ea962 Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Fri, 10 May 2013 00:40:56 -0500 Subject: 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 Reviewed-on: http://review.coreboot.org/3233 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/drivers/pc80/tpm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/drivers/pc80') diff --git a/src/drivers/pc80/tpm.c b/src/drivers/pc80/tpm.c index c7b50816be..9a4fc096ff 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; -- cgit v1.2.3