# Copyright (c) 2014-2015 Wind River Systems, Inc. # Copyright (c) 2016 Cadence Design Systems, Inc. # Copyright (c) 2019 Intel Corp. # SPDX-License-Identifier: Apache-2.0 # Keep this option as an alias to INTEL_ADSP_TIMER because # SoF is still referencing this symbol. The reason is the # symbiotic relationship between these two projects, that from # Zephyr's perspective is the framework and also the application. # Once it gets merged, we have to update SoF to use INTEL_ADSP_TIMER # option and remove it. config CAVS_TIMER bool help Temporary alias to INTEL_ADSP_TIMER config INTEL_ADSP_TIMER bool "Intel Audio DSP timer" default y depends on DT_HAS_INTEL_ADSP_TIMER_ENABLED select CAVS_TIMER select TICKLESS_CAPABLE select TIMER_HAS_64BIT_CYCLE_COUNTER select SYSTEM_CLOCK_LOCK_FREE_COUNT help The DSP wall clock timer is a timer driven directly by external oscillator and is external to the CPU core(s). It is not as fast as the internal core clock, but provides a common and synchronized counter for all CPU cores (which is useful for SMP).