ad42e4d87d
This commit add a system timer driver for Renesas RX using the CMT peripheral. The driver supports both system ticks and high-resolution cycle counting - Configures CMT0 as the system tick timer - Configures CMT1 as a free-running cycle timer for precise time tracking - Handles timer overflows to maintain a continuous cycle count. - Implements sys_clock_cycle_get_32() and sys_clock_cycle_get_64() for high-resolution timing - Supports Zephyr tickless kernel mode by tracking elapsed cycles - Enables interrupt-based tick announcement using CMT0 Signed-off-by: Duy Nguyen <duy.nguyen.xa@renesas.com> Signed-off-by: Yuichi Nakada <yuichi.nakada.sx@renesas.com>
14 lines
453 B
Plaintext
14 lines
453 B
Plaintext
# Copyright (c) 2024 Renesas Electronics Corporation
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# SPDX-License-Identifier: Apache-2.0
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config RENESAS_RX_TIMER_CMT
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bool "Renesas RX timer CMT"
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default y
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depends on DT_HAS_RENESAS_RX_TIMER_CMT_ENABLED
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select TIMER_HAS_64BIT_CYCLE_COUNTER
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select TICKLESS_CAPABLE
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help
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This module implements a kernel device driver for the Renesas RX
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platform provides the standard "system clock driver" interfaces.
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If unchecked, no timer will be used.
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