config ARM_TIMER bool select PTIMER config ARM_MPTIMER bool select PTIMER config A9_GTIMER bool config DS1338 bool depends on I2C config HPET bool default y if PC config I8254 bool config M41T80 bool depends on I2C config M48T59 bool config PL031 bool config TWL92230 bool depends on I2C config XLNX_ZYNQMP bool config ALTERA_TIMER bool select PTIMER config MC146818RTC bool config ALLWINNER_A10_PIT bool select PTIMER config STM32F2XX_TIMER bool config SUN4V_RTC bool config CMSDK_APB_TIMER bool select PTIMER config CMSDK_APB_DUALTIMER bool select PTIMER