diff options
Diffstat (limited to 'src/cpu/intel/common')
| -rw-r--r-- | src/cpu/intel/common/fsb.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/cpu/intel/common/fsb.c b/src/cpu/intel/common/fsb.c index 14dbd60e24..0004eade89 100644 --- a/src/cpu/intel/common/fsb.c +++ b/src/cpu/intel/common/fsb.c @@ -32,6 +32,7 @@ static int get_fsb_tsc(int *fsb, int *ratio) static const short core_fsb[8] = { -1, 133, -1, 166, -1, 100, -1, -1 }; static const short core2_fsb[8] = { 266, 133, 200, 166, 333, 100, 400, -1 }; static const short f2x_fsb[8] = { 100, 133, 200, 166, 333, -1, -1, -1 }; + static const short rangeley_fsb[4] = { 83, 100, 133, 116 }; msr_t msr; get_fms(&c, cpuid_eax(1)); @@ -56,10 +57,13 @@ static int get_fsb_tsc(int *fsb, int *ratio) case 0x3a: /* IvyBridge BCLK fixed at 100MHz */ case 0x3c: /* Haswell BCLK fixed at 100MHz */ case 0x45: /* Haswell-ULT BCLK fixed at 100MHz */ - case 0x4d: /* Rangeley BCLK fixed at 100MHz */ *fsb = 100; *ratio = (rdmsr(MSR_PLATFORM_INFO).lo >> 8) & 0xff; break; + case 0x4d: /* Rangeley */ + *fsb = rangeley_fsb[rdmsr(MSR_FSB_FREQ).lo & 3]; + *ratio = (rdmsr(MSR_PLATFORM_INFO).lo >> 8) & 0xff; + break; default: return -2; } |