diff options
Diffstat (limited to 'src/soc/intel/skylake')
-rw-r--r-- | src/soc/intel/skylake/cpu.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/src/soc/intel/skylake/cpu.c b/src/soc/intel/skylake/cpu.c index 1682503d4b..6872c12101 100644 --- a/src/soc/intel/skylake/cpu.c +++ b/src/soc/intel/skylake/cpu.c @@ -21,7 +21,6 @@ #include <soc/cpu.h> #include <soc/msr.h> #include <soc/pci_devs.h> -#include <soc/pm.h> #include <soc/ramstage.h> #include <soc/systemagent.h> @@ -96,29 +95,6 @@ static void configure_c_states(void) wrmsr(MSR_C_STATE_LATENCY_CONTROL_5, msr); } -/* - * The emulated ACPI timer allows disabling of the ACPI timer - * (PM1_TMR) to have no impart on the system. - */ -static void enable_pm_timer_emulation(void) -{ - msr_t msr; - - if (!CONFIG_CPU_XTAL_HZ) - return; - - /* - * The derived frequency is calculated as follows: - * (clock * msr[63:32]) >> 32 = target frequency. - * Back solve the multiplier so the 3.579545MHz ACPI timer frequency is used. - */ - msr.hi = (3579545ULL << 32) / CONFIG_CPU_XTAL_HZ; - /* Set PM1 timer IO port and enable */ - msr.lo = (EMULATE_DELAY_VALUE << EMULATE_DELAY_OFFSET_VALUE) | - EMULATE_PM_TMR_EN | (ACPI_BASE_ADDRESS + PM1_TMR); - wrmsr(MSR_EMULATE_PM_TIMER, msr); -} - /* All CPUs including BSP will run the following function. */ void soc_core_init(struct device *cpu) { |