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-rw-r--r--src/cpu/intel/common/fsb.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cpu/intel/common/fsb.c b/src/cpu/intel/common/fsb.c
index 5ad98d4c8f..c32bc235c2 100644
--- a/src/cpu/intel/common/fsb.c
+++ b/src/cpu/intel/common/fsb.c
@@ -42,12 +42,12 @@ static int get_fsb_tsc(int *fsb, int *ratio)
case 0xe: /* Core Solo/Duo */
case 0x1c: /* Atom */
*fsb = core_fsb[rdmsr(MSR_FSB_FREQ).lo & 7];
- *ratio = rdmsr(MSR_EBC_FREQUENCY_ID).lo >> 24;
+ *ratio = (rdmsr(IA32_PERF_STATUS).hi >> 8) & 0x1f;
break;
case 0xf: /* Core 2 or Xeon */
case 0x17: /* Enhanced Core */
*fsb = core2_fsb[rdmsr(MSR_FSB_FREQ).lo & 7];
- *ratio = rdmsr(MSR_EBC_FREQUENCY_ID).lo >> 24;
+ *ratio = (rdmsr(IA32_PERF_STATUS).hi >> 8) & 0x1f;
break;
case 0x25: /* Nehalem BCLK fixed at 133MHz */
*fsb = 133;