diff options
Diffstat (limited to 'src/soc/intel/braswell/tsc_freq.c')
| -rw-r--r-- | src/soc/intel/braswell/tsc_freq.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/soc/intel/braswell/tsc_freq.c b/src/soc/intel/braswell/tsc_freq.c index fff882eb9b..f4f1a8be8c 100644 --- a/src/soc/intel/braswell/tsc_freq.c +++ b/src/soc/intel/braswell/tsc_freq.c @@ -72,18 +72,23 @@ void set_max_freq(void) msr.lo |= (1 << 16); wrmsr(MSR_IA32_MISC_ENABLES, msr); + /* Enable Burst Mode */ + msr = rdmsr(MSR_IA32_MISC_ENABLES); + msr.hi = 0; + wrmsr(MSR_IA32_MISC_ENABLES, msr); + /* * Set guranteed ratio [21:16] from IACORE_RATIOS to bits [15:8] of * the PERF_CTL. */ - msr = rdmsr(MSR_IACORE_RATIOS); + msr = rdmsr(MSR_IACORE_TURBO_RATIOS); perf_ctl.lo = (msr.lo & 0x3f0000) >> 8; /* * Set guranteed vid [21:16] from IACORE_VIDS to bits [7:0] of * the PERF_CTL. */ - msr = rdmsr(MSR_IACORE_VIDS); + msr = rdmsr(MSR_IACORE_TURBO_VIDS); perf_ctl.lo |= (msr.lo & 0x7f0000) >> 16; perf_ctl.hi = 0; |