diff options
Diffstat (limited to 'src/soc/intel/elkhartlake/cpu.c')
| -rw-r--r-- | src/soc/intel/elkhartlake/cpu.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/src/soc/intel/elkhartlake/cpu.c b/src/soc/intel/elkhartlake/cpu.c index 720a295e15..d0fa019ef8 100644 --- a/src/soc/intel/elkhartlake/cpu.c +++ b/src/soc/intel/elkhartlake/cpu.c @@ -17,7 +17,6 @@ #include <soc/cpu.h> #include <soc/msr.h> #include <soc/pci_devs.h> -#include <soc/pm.h> #include <soc/soc_chip.h> static void soc_fsp_load(void) @@ -56,25 +55,6 @@ static void configure_misc(void) wrmsr(MSR_POWER_CTL, msr); } -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) { @@ -91,7 +71,6 @@ void soc_core_init(struct device *cpu) /* Configure Enhanced SpeedStep and Thermal Sensors */ configure_misc(); - /* Enable PM timer emulation */ enable_pm_timer_emulation(); /* Enable Direct Cache Access */ |