OrgZephyr/zephyr
OrgZephyr
/
zephyr
mirror of https://github.com/zephyrproject-rtos/zephyr.git
1
0
Fork 0
Code Issues Releases Wiki Activity
zephyr/drivers/timer/Kconfig.cortex_m_systick

31 lines
1.1 KiB
Plaintext
Raw Normal View History

drivers: timer: split Kconfig Split Kconfig into individual files for each driver. This improves overall readability of the Kconfig options. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-11-04 21:14:51 +08:00
# 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
DT_COMPAT_ARM_V6M_SYSTICK := arm,armv6m-systick
DT_COMPAT_ARM_V7M_SYSTICK := arm,armv7m-systick
DT_COMPAT_ARM_V8M_SYSTICK := arm,armv8m-systick
DT_COMPAT_ARM_V8_1M_SYSTICK := arm,armv8.1m-systick
config CORTEX_M_SYSTICK
bool "Cortex-M SYSTICK timer"
depends on CPU_CORTEX_M_HAS_SYSTICK
default $(dt_compat_enabled,$(DT_COMPAT_ARM_V6M_SYSTICK)) || \
$(dt_compat_enabled,$(DT_COMPAT_ARM_V7M_SYSTICK)) || \
$(dt_compat_enabled,$(DT_COMPAT_ARM_V8M_SYSTICK)) || \
$(dt_compat_enabled,$(DT_COMPAT_ARM_V8_1M_SYSTICK))
select TICKLESS_CAPABLE
drivers: timer: improve sys_timer_disable usage - Remove the weak symbol definition - Notify about the capability of disabling via a selected Kconfig option (CONFIG_SYSTEM_TIMER_HAS_DISABLE_SUPPORT) - Provide a dummy inline function when the functionality is not available Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-11-04 21:26:19 +08:00
select SYSTEM_TIMER_HAS_DISABLE_SUPPORT
drivers: timer: cortex_m_systick: improve ISR installation A Cortex-M specific function (sys_clock_isr()) was defined as a weak function, so in practice it was always available when system clock was enabled, even if no Cortex-M systick was available. This patch introduces an auxiliary Kconfig option that, when selected, the ISR function gets installed. External SysTick drivers can also make use of this function, thus achieving the same functionality offered today but in a cleaner way. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-11-04 22:33:35 +08:00
select CORTEX_M_SYSTICK_INSTALL_ISR
drivers: timer: split Kconfig Split Kconfig into individual files for each driver. This improves overall readability of the Kconfig options. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-11-04 21:14:51 +08:00
help
This module implements a kernel device driver for the Cortex-M processor
SYSTICK timer and provides the standard "system clock driver" interfaces.
drivers: timer: cortex_m_systick: improve ISR installation A Cortex-M specific function (sys_clock_isr()) was defined as a weak function, so in practice it was always available when system clock was enabled, even if no Cortex-M systick was available. This patch introduces an auxiliary Kconfig option that, when selected, the ISR function gets installed. External SysTick drivers can also make use of this function, thus achieving the same functionality offered today but in a cleaner way. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-11-04 22:33:35 +08:00
config CORTEX_M_SYSTICK_INSTALL_ISR
bool
depends on CPU_CORTEX_M_HAS_SYSTICK
help
This option should be selected by SysTick-based drivers so that the
sys_clock_isr() function is installed.