| # Timer driver configuration options |
| # Copyright (c) 2024 Nordic Semiconductor ASA |
| |
| menuconfig NRF_GRTC_TIMER |
| bool "nRF GRTC Timer" |
| default y |
| depends on DT_HAS_NORDIC_NRF_GRTC_ENABLED |
| select TICKLESS_CAPABLE |
| select TIMER_HAS_64BIT_CYCLE_COUNTER |
| select NRFX_GRTC |
| help |
| This module implements a kernel device driver for the nRF Global Real |
| Time Counter NRF_GRTC and provides the standard "system clock driver" |
| interfaces. |
| |
| if NRF_GRTC_TIMER |
| |
| config NRF_GRTC_ALWAYS_ON |
| bool |
| help |
| Always keep the SYSCOUNTER active even if the CPU is in sleep mode. |
| |
| config NRF_GRTC_TIMER_APP_DEFINED_INIT |
| bool "Application defines GRTC initialization" |
| help |
| Application defines the initialization procedure and time of the GRTC |
| drivers, rather than leaving it up to SYS_INIT. |
| |
| config NRF_GRTC_START_SYSCOUNTER |
| bool "Start SYSCOUNTER on driver init" |
| select NRF_GRTC_TIMER_CLOCK_MANAGEMENT |
| help |
| Start the SYSCOUNTER when initializing the GRTC. This should only be |
| handled by one processor in the system. |
| |
| config NRF_GRTC_TIMER_CLOCK_MANAGEMENT |
| bool |
| help |
| Compile additional driver code for enabling management functionality of |
| the GRTC. Usually this is only needed by the processor that is starting |
| the SYSCOUNTER, but can be shared by multiple processors in the system. |
| |
| config NRF_GRTC_SYSCOUNTER_SLEEP_MINIMUM_LATENCY |
| int |
| default 1000 |
| depends on POWEROFF |
| help |
| The value (in us) ensures that the wakeup event will not fire |
| too early. In other words, applying SYSCOUNTER sleep state for less than |
| NRF_GRTC_SYSCOUNTER_SLEEP_MINIMUM_LATENCY period makes no sense. |
| |
| config NRF_GRTC_TIMER_AUTO_KEEP_ALIVE |
| bool |
| default y if NRF_GRTC_START_SYSCOUNTER |
| help |
| This feature prevents the SYSCOUNTER from sleeping when any core is in |
| active state. |
| |
| endif # NRF_GRTC_TIMER |