diff options
Diffstat (limited to 'src/soc/intel/broadwell/cpu.c')
| -rw-r--r-- | src/soc/intel/broadwell/cpu.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/soc/intel/broadwell/cpu.c b/src/soc/intel/broadwell/cpu.c index b46c2e256d..8e05998c19 100644 --- a/src/soc/intel/broadwell/cpu.c +++ b/src/soc/intel/broadwell/cpu.c @@ -246,8 +246,11 @@ static void initialize_vr_config(void) msr = rdmsr(MSR_VR_MISC_CONFIG2); msr.lo &= ~0xffff; /* Allow CPU to control minimum voltage completely (15:8) and - * set the fast ramp voltage to 1110mV (0x6f in 10mV steps). */ - msr.lo |= 0x006f; + * set the fast ramp voltage in 10mV steps. */ + if (cpu_family_model() == BROADWELL_FAMILY_ULT) + msr.lo |= 0x006a; /* 1.56V */ + else + msr.lo |= 0x006f; /* 1.60V */ wrmsr(MSR_VR_MISC_CONFIG2, msr); } |