config ARM_TIMER bool select PTIMER config ARM_MPTIMER bool select PTIMER config A9_GTIMER bool config HPET bool default y if PC config I8254 bool depends on ISA_BUS config ALLWINNER_A10_PIT bool select PTIMER config PXA2XX_TIMER bool config SIFIVE_PWM bool config STM32F2XX_TIMER bool config CMSDK_APB_TIMER bool select PTIMER config CMSDK_APB_DUALTIMER bool select PTIMER config SH_TIMER bool select PTIMER config RENESAS_TMR bool config RENESAS_CMT bool config SSE_COUNTER bool config SSE_TIMER bool config STELLARIS_GPTM bool config AVR_TIMER16 bool