diff options
Diffstat (limited to 'src/soc/intel/broadwell/cpu.c')
| -rw-r--r-- | src/soc/intel/broadwell/cpu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/soc/intel/broadwell/cpu.c b/src/soc/intel/broadwell/cpu.c index 3676865efb..58f81fc79d 100644 --- a/src/soc/intel/broadwell/cpu.c +++ b/src/soc/intel/broadwell/cpu.c @@ -218,7 +218,7 @@ static void initialize_vr_config(void) msr.hi &= 0xc0000000; msr.hi |= (0x01 << (52 - 32)); /* PSI3 threshold - 1A. */ msr.hi |= (0x05 << (42 - 32)); /* PSI2 threshold - 5A. */ - msr.hi |= (0x0f << (32 - 32)); /* PSI1 threshold - 15A. */ + msr.hi |= (0x14 << (32 - 32)); /* PSI1 threshold - 20A. */ msr.hi |= (1 << (62 - 32)); /* Enable PSI4 */ /* Leave the max instantaneous current limit (12:0) to default. */ wrmsr(MSR_VR_CURRENT_CONFIG, msr); @@ -387,6 +387,7 @@ static void configure_c_states(void) msr_t msr; msr = rdmsr(MSR_PMG_CST_CONFIG_CONTROL); + msr.lo |= (1 << 31); // Timed MWAIT Enable msr.lo |= (1 << 30); // Package c-state Undemotion Enable msr.lo |= (1 << 29); // Package c-state Demotion Enable msr.lo |= (1 << 28); // C1 Auto Undemotion Enable @@ -661,6 +662,7 @@ static struct cpu_device_id cpu_table[] = { { X86_VENDOR_INTEL, CPUID_HASWELL_ULT }, { X86_VENDOR_INTEL, CPUID_BROADWELL_C0 }, { X86_VENDOR_INTEL, CPUID_BROADWELL_D0 }, + { X86_VENDOR_INTEL, CPUID_BROADWELL_E0 }, { 0, 0 }, }; |