[coreboot-gerrit] Patch set updated for coreboot: amd/model_fxx: Check FID&VID Support for the BSP (too)
Urja Rannikko (urjaman@gmail.com)
gerrit at coreboot.org
Sat Nov 7 14:47:49 CET 2015
Urja Rannikko (urjaman at gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/12336
-gerrit
commit 3d67a449879047f7530221e94a3b3aecf64b4efb
Author: Urja Rannikko <urjaman at gmail.com>
Date: Sat Nov 7 15:43:06 2015 +0200
amd/model_fxx: Check FID&VID Support for the BSP (too)
Tested in the direction that now my Sempron 2800+ / K8V-X boots.
Change-Id: I76196176635bb0f6ac284c8cb3b72212774fdfe4
Signed-off-by: Urja Rannikko <urjaman at gmail.com>
---
src/cpu/amd/model_fxx/fidvid.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/cpu/amd/model_fxx/fidvid.c b/src/cpu/amd/model_fxx/fidvid.c
index 9851e65..03415d1 100644
--- a/src/cpu/amd/model_fxx/fidvid.c
+++ b/src/cpu/amd/model_fxx/fidvid.c
@@ -535,6 +535,9 @@ static void init_fidvid_bsp(unsigned bsp_apicid)
unsigned i;
#endif
+ if ((cpuid_edx(0x80000007) & 0x06) != 0x06)
+ return; /* FID/VID change not supported */
+
msr_t msr;
msr = rdmsr(0xc0010042);
fid_max = ((msr.lo >> 16) & 0x3f); /* max fid */
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