diff options
Diffstat (limited to 'src/soc/intel/skylake/cpu.c')
| -rw-r--r-- | src/soc/intel/skylake/cpu.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/soc/intel/skylake/cpu.c b/src/soc/intel/skylake/cpu.c index c472617b0f..057241327b 100644 --- a/src/soc/intel/skylake/cpu.c +++ b/src/soc/intel/skylake/cpu.c @@ -245,12 +245,17 @@ static void configure_isst(void) static void configure_misc(void) { + device_t dev = SA_DEV_ROOT; + config_t *conf = dev->chip_info; msr_t msr; msr = rdmsr(IA32_MISC_ENABLE); msr.lo |= (1 << 0); /* Fast String enable */ msr.lo |= (1 << 3); /* TM1/TM2/EMTTM enable */ - msr.lo |= (1 << 16); /* Enhanced SpeedStep Enable */ + if (conf->eist_enable) + msr.lo |= (1 << 16); /* Enhanced SpeedStep Enable */ + else + msr.lo &= ~(1 << 16); /* Enhanced SpeedStep Disable */ wrmsr(IA32_MISC_ENABLE, msr); /* Disable Thermal interrupts */ |