From: Zheng Bao <zheng.bao@amd.com>
Date: Fri, 10 Jul 2009 03:42:13 +0000 (+0000)
Subject: This seems to be a more official, common, simple way to check if the CPU is dual... 
X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=commitdiff_plain;h=7d4fd2c1081a7674c0631cbe96aa23ca51879586;p=coreboot.git

This seems to be a more official, common, simple way to check if the CPU is dual core or
single core.


Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4415 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
---

diff --git a/src/southbridge/amd/sb600/sb600_early_setup.c b/src/southbridge/amd/sb600/sb600_early_setup.c
index b605b5e3b..df3c55892 100644
--- a/src/southbridge/amd/sb600/sb600_early_setup.c
+++ b/src/southbridge/amd/sb600/sb600_early_setup.c
@@ -125,11 +125,7 @@ static u32 get_sbdn(u32 bus)
 
 static u8 dual_core()
 {
-	if(((cpuid_eax(0x80000000) & ~0xff) >= 8)) {
-		if(cpuid_ecx(0x80000008) & 1)
-			return 1;
-	}
-	return 0;
+	return (pci_read_config32(PCI_DEV(0, 0x18, 3), 0xE8) & (0x3<<12)) != 0;
 }
 
 /*