mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 06:04:14 +08:00
7a932e5702
This cleans up two ancient timer features that were never completed in the past, CONFIG_GENERIC_CLOCKEVENTS and CONFIG_ARCH_USES_GETTIMEOFFSET. There was only one user left for the ARCH_USES_GETTIMEOFFSET variant of clocksource implementations, the ARM EBSA110 platform. Rather than changing to use modern timekeeping, we remove the platform entirely as Russell no longer uses his machine and nobody else seems to have one any more. The conditional code for using arch_gettimeoffset() is removed as a result. For CONFIG_GENERIC_CLOCKEVENTS, there are still a couple of platforms not using clockevent drivers: parisc, ia64, most of m68k, and one Arm platform. These all do timer ticks slighly differently, and this gets cleaned up to the point they at least all call the same helper function. Instead of most platforms using 'select GENERIC_CLOCKEVENTS' in Kconfig, the polarity is now reversed, with the few remaining ones selecting LEGACY_TIMER_TICK instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAl/Y1v8ACgkQmmx57+YA GNmCvQ/9EDlgCt92r8SB+LGafDtgB8TUQZeIrs9S2mByzdxwnw0lxObIXFCnhQgh RpG3dR+ONRDnC5eI149B377JOEFMZWe2+BtYHUHkFARtUEWatslQcz7yAGvVRK/l TS/qReb6piKltlzuanF1bMZbjy2OhlaDRcm+OlC3y5mALR33M4emb+rJ6cSdfk3K v1iZhrxtfQT77ztesh/oPkPiyQ6kNcz7SfpyYOb6f5VLlml2BZ7YwBSVyGY7urHk RL3XqOUP4KKlMEAI8w0E2nvft6Fk+luziBhrMYWK0GvbmI1OESENuX/c6tgT2OQ1 DRaVHvcPG/EAY8adOKxxVyHhEJDSoz5GJV/EtjlOegsJk6RomczR1uuiT3Kvm7Ah PktMKv4xQht1E15KPSKbOvNIEP18w2s5z6gw+jVDv8pw42pVEQManm1D+BICqrhl fcpw6T1drf9UxAjwX4+zXtmNs+a+mqiFG8puU4VVgT4GpQ8umHvunXz2WUjZO0jc 3m8ErJHBvtJwW5TOHGyXnjl9SkwPzHOfF6IcXTYWEDU4/gQIK9TwUvCjLc0lE27t FMCV2ds7/K1CXwRgpa5IrefSkb8yOXSbRZ56NqqF7Ekxw4J5bYRSaY7jb+qD/e+3 5O1y+iPxFrpH+16hSahvzrtcdFNbLQvBBuRtEQOYuHLt2UJrNoU= =QpNs -----END PGP SIGNATURE----- Merge tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic cross-architecture timer cleanup from Arnd Bergmann: "This cleans up two ancient timer features that were never completed in the past, CONFIG_GENERIC_CLOCKEVENTS and CONFIG_ARCH_USES_GETTIMEOFFSET. There was only one user left for the ARCH_USES_GETTIMEOFFSET variant of clocksource implementations, the ARM EBSA110 platform. Rather than changing to use modern timekeeping, we remove the platform entirely as Russell no longer uses his machine and nobody else seems to have one any more. The conditional code for using arch_gettimeoffset() is removed as a result. For CONFIG_GENERIC_CLOCKEVENTS, there are still a couple of platforms not using clockevent drivers: parisc, ia64, most of m68k, and one Arm platform. These all do timer ticks slighly differently, and this gets cleaned up to the point they at least all call the same helper function. Instead of most platforms using 'select GENERIC_CLOCKEVENTS' in Kconfig, the polarity is now reversed, with the few remaining ones selecting LEGACY_TIMER_TICK instead" * tag 'asm-generic-timers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: timekeeping: default GENERIC_CLOCKEVENTS to enabled timekeeping: remove xtime_update m68k: remove timer_interrupt() function m68k: change remaining timers to legacy_timer_tick m68k: m68328: use legacy_timer_tick() m68k: sun3/sun3c: use legacy_timer_tick m68k: split heartbeat out of timer function m68k: coldfire: use legacy_timer_tick() parisc: use legacy_timer_tick ARM: rpc: use legacy_timer_tick ia64: convert to legacy_timer_tick timekeeping: add CONFIG_LEGACY_TIMER_TICK timekeeping: remove arch_gettimeoffset net: remove am79c961a driver ARM: remove ebsa110 platform
732 lines
19 KiB
Plaintext
732 lines
19 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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menu "Clock Source drivers"
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depends on GENERIC_CLOCKEVENTS
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config TIMER_OF
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bool
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select TIMER_PROBE
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config TIMER_ACPI
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bool
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select TIMER_PROBE
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config TIMER_PROBE
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bool
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config CLKSRC_I8253
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bool
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config CLKEVT_I8253
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bool
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config I8253_LOCK
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bool
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config OMAP_DM_TIMER
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bool
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config CLKBLD_I8253
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def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
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config CLKSRC_MMIO
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bool
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config BCM2835_TIMER
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bool "BCM2835 timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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help
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Enables the support for the BCM2835 timer driver.
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config BCM_KONA_TIMER
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bool "BCM mobile timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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help
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Enables the support for the BCM Kona mobile timer driver.
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config DAVINCI_TIMER
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bool "Texas Instruments DaVinci timer driver" if COMPILE_TEST
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help
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Enables the support for the TI DaVinci timer driver.
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config DIGICOLOR_TIMER
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bool "Digicolor timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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depends on HAS_IOMEM
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help
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Enables the support for the digicolor timer driver.
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config DW_APB_TIMER
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bool "DW APB timer driver" if COMPILE_TEST
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help
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Enables the support for the dw_apb timer.
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config DW_APB_TIMER_OF
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bool
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select DW_APB_TIMER
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select TIMER_OF
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config FTTMR010_TIMER
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bool "Faraday Technology timer driver" if COMPILE_TEST
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depends on HAS_IOMEM
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select CLKSRC_MMIO
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select TIMER_OF
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select MFD_SYSCON
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help
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Enables support for the Faraday Technology timer block
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FTTMR010.
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config IXP4XX_TIMER
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bool "Intel XScale IXP4xx timer driver" if COMPILE_TEST
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depends on HAS_IOMEM
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select CLKSRC_MMIO
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help
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Enables support for the Intel XScale IXP4xx SoC timer.
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config ROCKCHIP_TIMER
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bool "Rockchip timer driver" if COMPILE_TEST
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depends on ARM || ARM64
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select TIMER_OF
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select CLKSRC_MMIO
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help
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Enables the support for the Rockchip timer driver.
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config ARMADA_370_XP_TIMER
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bool "Armada 370 and XP timer driver" if COMPILE_TEST
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depends on ARM
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select TIMER_OF
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select CLKSRC_MMIO
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help
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Enables the support for the Armada 370 and XP timer driver.
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config MESON6_TIMER
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bool "Meson6 timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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help
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Enables the support for the Meson6 timer driver.
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config ORION_TIMER
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bool "Orion timer driver" if COMPILE_TEST
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depends on ARM
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select TIMER_OF
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select CLKSRC_MMIO
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help
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Enables the support for the Orion timer driver
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config OWL_TIMER
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bool "Owl timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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help
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Enables the support for the Actions Semi Owl timer driver.
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config RDA_TIMER
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bool "RDA timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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select TIMER_OF
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help
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Enables the support for the RDA Micro timer driver.
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config SUN4I_TIMER
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bool "Sun4i timer driver" if COMPILE_TEST
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depends on HAS_IOMEM
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select CLKSRC_MMIO
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select TIMER_OF
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help
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Enables support for the Sun4i timer.
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config SUN5I_HSTIMER
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bool "Sun5i timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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depends on COMMON_CLK
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help
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Enables support the Sun5i timer.
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config TEGRA_TIMER
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bool "Tegra timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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select TIMER_OF
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depends on ARCH_TEGRA || COMPILE_TEST
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help
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Enables support for the Tegra driver.
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config VT8500_TIMER
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bool "VT8500 timer driver" if COMPILE_TEST
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depends on HAS_IOMEM
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help
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Enables support for the VT8500 driver.
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config NPCM7XX_TIMER
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bool "NPCM7xx timer driver" if COMPILE_TEST
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depends on HAS_IOMEM
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select TIMER_OF
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select CLKSRC_MMIO
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help
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Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture,
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where TIMER0 serves as clockevent and TIMER1 serves as clocksource.
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config CADENCE_TTC_TIMER
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bool "Cadence TTC timer driver" if COMPILE_TEST
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depends on COMMON_CLK
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help
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Enables support for the Cadence TTC driver.
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config ASM9260_TIMER
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bool "ASM9260 timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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select TIMER_OF
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help
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Enables support for the ASM9260 timer.
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config CLKSRC_NOMADIK_MTU
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bool "Nomakdik clocksource driver" if COMPILE_TEST
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depends on ARM
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select CLKSRC_MMIO
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help
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Support for Multi Timer Unit. MTU provides access
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to multiple interrupt generating programmable
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32-bit free running decrementing counters.
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config CLKSRC_DBX500_PRCMU
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bool "Clocksource PRCMU Timer" if COMPILE_TEST
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depends on HAS_IOMEM
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help
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Use the always on PRCMU Timer as clocksource.
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config CLPS711X_TIMER
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bool "Cirrus Logic timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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help
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Enables support for the Cirrus Logic PS711 timer.
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config ATLAS7_TIMER
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bool "Atlas7 timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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help
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Enables support for the Atlas7 timer.
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config MXS_TIMER
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bool "MXS timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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select STMP_DEVICE
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help
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Enables support for the MXS timer.
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config PRIMA2_TIMER
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bool "Prima2 timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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help
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Enables support for the Prima2 timer.
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config U300_TIMER
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bool "U300 timer driver" if COMPILE_TEST
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depends on ARM
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select CLKSRC_MMIO
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help
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Enables support for the U300 timer.
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config NSPIRE_TIMER
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bool "NSpire timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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help
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Enables support for the Nspire timer.
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config KEYSTONE_TIMER
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bool "Keystone timer driver" if COMPILE_TEST
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depends on ARM || ARM64
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select CLKSRC_MMIO
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help
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Enables support for the Keystone timer.
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config INTEGRATOR_AP_TIMER
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bool "Integrator-AP timer driver" if COMPILE_TEST
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select CLKSRC_MMIO
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help
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Enables support for the Integrator-AP timer.
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config CLKSRC_EFM32
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bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
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depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
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select CLKSRC_MMIO
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default ARCH_EFM32
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help
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Support to use the timers of EFM32 SoCs as clock source and clock
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event device.
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config CLKSRC_LPC32XX
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bool "Clocksource for LPC32XX" if COMPILE_TEST
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depends on HAS_IOMEM
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depends on ARM
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select CLKSRC_MMIO
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select TIMER_OF
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help
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Support for the LPC32XX clocksource.
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config CLKSRC_PISTACHIO
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bool "Clocksource for Pistachio SoC" if COMPILE_TEST
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depends on HAS_IOMEM
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select TIMER_OF
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help
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Enables the clocksource for the Pistachio SoC.
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config CLKSRC_TI_32K
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bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
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depends on GENERIC_SCHED_CLOCK
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select TIMER_OF if OF
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help
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This option enables support for Texas Instruments 32.768 Hz clocksource
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available on many OMAP-like platforms.
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config CLKSRC_STM32
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bool "Clocksource for STM32 SoCs" if !ARCH_STM32
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depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
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select CLKSRC_MMIO
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select TIMER_OF
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config CLKSRC_STM32_LP
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bool "Low power clocksource for STM32 SoCs"
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depends on MFD_STM32_LPTIMER || COMPILE_TEST
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config CLKSRC_MPS2
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bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
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depends on GENERIC_SCHED_CLOCK
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select CLKSRC_MMIO
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select TIMER_OF
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config ARC_TIMERS
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bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST
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depends on GENERIC_SCHED_CLOCK
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select TIMER_OF
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help
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These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
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(ARC700 as well as ARC HS38).
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TIMER0 serves as clockevent while TIMER1 provides clocksource.
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config ARC_TIMERS_64BIT
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bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
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depends on ARC_TIMERS
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select TIMER_OF
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help
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This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP).
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RTC is implemented inside the core, while GFRC sits outside the core in
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ARConnect IP block. Driver automatically picks one of them for clocksource
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as appropriate.
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config ARM_ARCH_TIMER
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bool
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select TIMER_OF if OF
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select TIMER_ACPI if ACPI
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config ARM_ARCH_TIMER_EVTSTREAM
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bool "Enable ARM architected timer event stream generation by default"
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default y if ARM_ARCH_TIMER
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depends on ARM_ARCH_TIMER
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help
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This option enables support by default for event stream generation
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based on the ARM architected timer. It is used for waking up CPUs
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executing the wfe instruction at a frequency represented as a
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power-of-2 divisor of the clock rate. The behaviour can also be
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overridden on the command line using the
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clocksource.arm_arch_timer.evtstream parameter.
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The main use of the event stream is wfe-based timeouts of userspace
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locking implementations. It might also be useful for imposing timeout
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on wfe to safeguard against any programming errors in case an expected
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event is not generated.
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This must be disabled for hardware validation purposes to detect any
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hardware anomalies of missing events.
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config ARM_ARCH_TIMER_OOL_WORKAROUND
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bool
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config FSL_ERRATUM_A008585
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bool "Workaround for Freescale/NXP Erratum A-008585"
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default y
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depends on ARM_ARCH_TIMER && ARM64
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select ARM_ARCH_TIMER_OOL_WORKAROUND
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help
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This option enables a workaround for Freescale/NXP Erratum
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A-008585 ("ARM generic timer may contain an erroneous
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value"). The workaround will only be active if the
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fsl,erratum-a008585 property is found in the timer node.
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config HISILICON_ERRATUM_161010101
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bool "Workaround for Hisilicon Erratum 161010101"
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default y
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select ARM_ARCH_TIMER_OOL_WORKAROUND
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depends on ARM_ARCH_TIMER && ARM64
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help
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This option enables a workaround for Hisilicon Erratum
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161010101. The workaround will be active if the hisilicon,erratum-161010101
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property is found in the timer node.
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config ARM64_ERRATUM_858921
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bool "Workaround for Cortex-A73 erratum 858921"
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default y
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select ARM_ARCH_TIMER_OOL_WORKAROUND
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depends on ARM_ARCH_TIMER && ARM64
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help
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This option enables a workaround applicable to Cortex-A73
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(all versions), whose counter may return incorrect values.
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The workaround will be dynamically enabled when an affected
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core is detected.
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config SUN50I_ERRATUM_UNKNOWN1
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bool "Workaround for Allwinner A64 erratum UNKNOWN1"
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default y
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depends on ARM_ARCH_TIMER && ARM64 && ARCH_SUNXI
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select ARM_ARCH_TIMER_OOL_WORKAROUND
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help
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This option enables a workaround for instability in the timer on
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the Allwinner A64 SoC. The workaround will only be active if the
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allwinner,erratum-unknown1 property is found in the timer node.
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config ARM_GLOBAL_TIMER
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bool "Support for the ARM global timer" if COMPILE_TEST
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select TIMER_OF if OF
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depends on ARM
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help
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This option enables support for the ARM global timer unit.
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config ARM_TIMER_SP804
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bool "Support for Dual Timer SP804 module" if COMPILE_TEST
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depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
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select CLKSRC_MMIO
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select TIMER_OF if OF
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config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
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bool
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depends on ARM_GLOBAL_TIMER
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default y
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help
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Use ARM global timer clock source as sched_clock.
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config ARMV7M_SYSTICK
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bool "Support for the ARMv7M system time" if COMPILE_TEST
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select TIMER_OF if OF
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select CLKSRC_MMIO
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help
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This option enables support for the ARMv7M system timer unit.
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config ATMEL_PIT
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bool "Atmel PIT support" if COMPILE_TEST
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depends on HAS_IOMEM
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select TIMER_OF if OF
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help
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Support for the Periodic Interval Timer found on Atmel SoCs.
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config ATMEL_ST
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bool "Atmel ST timer support" if COMPILE_TEST
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depends on HAS_IOMEM
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select TIMER_OF
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select MFD_SYSCON
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help
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Support for the Atmel ST timer.
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config ATMEL_TCB_CLKSRC
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bool "Atmel TC Block timer driver" if COMPILE_TEST
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depends on ARM && HAS_IOMEM
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select TIMER_OF if OF
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help
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Support for Timer Counter Blocks on Atmel SoCs.
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config CLKSRC_EXYNOS_MCT
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bool "Exynos multi core timer driver" if COMPILE_TEST
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depends on ARM || ARM64
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help
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Support for Multi Core Timer controller on Exynos SoCs.
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config CLKSRC_SAMSUNG_PWM
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bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
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depends on HAS_IOMEM
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help
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This is a new clocksource driver for the PWM timer found in
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Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
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for all devicetree enabled platforms. This driver will be
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needed only on systems that do not have the Exynos MCT available.
|
|
|
|
config FSL_FTM_TIMER
|
|
bool "Freescale FlexTimer Module driver" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_MMIO
|
|
help
|
|
Support for Freescale FlexTimer Module (FTM) timer.
|
|
|
|
config VF_PIT_TIMER
|
|
bool
|
|
select CLKSRC_MMIO
|
|
help
|
|
Support for Periodic Interrupt Timer on Freescale Vybrid Family SoCs.
|
|
|
|
config OXNAS_RPS_TIMER
|
|
bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
|
|
select TIMER_OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
This enables support for the Oxford Semiconductor OXNAS RPS timers.
|
|
|
|
config SYS_SUPPORTS_SH_CMT
|
|
bool
|
|
|
|
config MTK_TIMER
|
|
bool "Mediatek timer driver" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
select TIMER_OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
Support for Mediatek timer driver.
|
|
|
|
config SPRD_TIMER
|
|
bool "Spreadtrum timer driver" if EXPERT
|
|
depends on HAS_IOMEM
|
|
depends on (ARCH_SPRD || COMPILE_TEST)
|
|
default ARCH_SPRD
|
|
select TIMER_OF
|
|
help
|
|
Enables support for the Spreadtrum timer driver.
|
|
|
|
config SYS_SUPPORTS_SH_MTU2
|
|
bool
|
|
|
|
config SYS_SUPPORTS_SH_TMU
|
|
bool
|
|
|
|
config SYS_SUPPORTS_EM_STI
|
|
bool
|
|
|
|
config CLKSRC_JCORE_PIT
|
|
bool "J-Core PIT timer driver" if COMPILE_TEST
|
|
depends on OF
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_MMIO
|
|
help
|
|
This enables build of clocksource and clockevent driver for
|
|
the integrated PIT in the J-Core synthesizable, open source SoC.
|
|
|
|
config SH_TIMER_CMT
|
|
bool "Renesas CMT timer driver" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
default SYS_SUPPORTS_SH_CMT
|
|
help
|
|
This enables build of a clocksource and clockevent driver for
|
|
the Compare Match Timer (CMT) hardware available in 16/32/48-bit
|
|
variants on a wide range of Mobile and Automotive SoCs from Renesas.
|
|
|
|
config SH_TIMER_MTU2
|
|
bool "Renesas MTU2 timer driver" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
default SYS_SUPPORTS_SH_MTU2
|
|
help
|
|
This enables build of a clockevent driver for the Multi-Function
|
|
Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
|
|
This hardware comes with 16-bit timer registers.
|
|
|
|
config RENESAS_OSTM
|
|
bool "Renesas OSTM timer driver" if COMPILE_TEST
|
|
select CLKSRC_MMIO
|
|
select TIMER_OF
|
|
help
|
|
Enables the support for the Renesas OSTM.
|
|
|
|
config SH_TIMER_TMU
|
|
bool "Renesas TMU timer driver" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
default SYS_SUPPORTS_SH_TMU
|
|
help
|
|
This enables build of a clocksource and clockevent driver for
|
|
the 32-bit Timer Unit (TMU) hardware available on a wide range
|
|
SoCs from Renesas.
|
|
|
|
config EM_TIMER_STI
|
|
bool "Renesas STI timer driver" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
default SYS_SUPPORTS_EM_STI
|
|
help
|
|
This enables build of a clocksource and clockevent driver for
|
|
the 48-bit System Timer (STI) hardware available on a SoCs
|
|
such as EMEV2 from former NEC Electronics.
|
|
|
|
config CLKSRC_QCOM
|
|
bool "Qualcomm MSM timer" if COMPILE_TEST
|
|
depends on ARM
|
|
select TIMER_OF
|
|
help
|
|
This enables the clocksource and the per CPU clockevent driver for the
|
|
Qualcomm SoCs.
|
|
|
|
config CLKSRC_VERSATILE
|
|
bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
|
|
depends on GENERIC_SCHED_CLOCK
|
|
select TIMER_OF
|
|
default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM
|
|
help
|
|
This option enables clock source based on free running
|
|
counter available in the "System Registers" block of
|
|
ARM Versatile and Versatile Express reference platforms.
|
|
|
|
config CLKSRC_MIPS_GIC
|
|
bool
|
|
depends on MIPS_GIC
|
|
select CLOCKSOURCE_WATCHDOG
|
|
select TIMER_OF
|
|
|
|
config CLKSRC_TANGO_XTAL
|
|
bool "Clocksource for Tango SoC" if COMPILE_TEST
|
|
depends on ARM
|
|
select TIMER_OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
This enables the clocksource for Tango SoC.
|
|
|
|
config CLKSRC_PXA
|
|
bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_MMIO
|
|
help
|
|
This enables OST0 support available on PXA and SA-11x0
|
|
platforms.
|
|
|
|
config H8300_TMR8
|
|
bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
help
|
|
This enables the 8 bits timer for the H8300 platform.
|
|
|
|
config H8300_TMR16
|
|
bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
help
|
|
This enables the 16 bits timer for the H8300 platform with the
|
|
H83069 CPU.
|
|
|
|
config H8300_TPU
|
|
bool "Clocksource for the H8300 platform" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
help
|
|
This enables the clocksource for the H8300 platform with the
|
|
H8S2678 CPU.
|
|
|
|
config CLKSRC_IMX_GPT
|
|
bool "Clocksource using i.MX GPT" if COMPILE_TEST
|
|
depends on (ARM || ARM64) && CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
|
|
config CLKSRC_IMX_TPM
|
|
bool "Clocksource using i.MX TPM" if COMPILE_TEST
|
|
depends on (ARM || ARM64) && CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
select TIMER_OF
|
|
help
|
|
Enable this option to use IMX Timer/PWM Module (TPM) timer as
|
|
clocksource.
|
|
|
|
config TIMER_IMX_SYS_CTR
|
|
bool "i.MX system counter timer" if COMPILE_TEST
|
|
select TIMER_OF
|
|
help
|
|
Enable this option to use i.MX system counter timer as a
|
|
clockevent.
|
|
|
|
config CLKSRC_ST_LPC
|
|
bool "Low power clocksource found in the LPC" if COMPILE_TEST
|
|
select TIMER_OF if OF
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enable this option to use the Low Power controller timer
|
|
as clocksource.
|
|
|
|
config ATCPIT100_TIMER
|
|
bool "ATCPIT100 timer driver"
|
|
depends on NDS32 || COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
select TIMER_OF
|
|
default NDS32
|
|
help
|
|
This option enables support for the Andestech ATCPIT100 timers.
|
|
|
|
config RISCV_TIMER
|
|
bool "Timer for the RISC-V platform" if COMPILE_TEST
|
|
depends on GENERIC_SCHED_CLOCK && RISCV && RISCV_SBI
|
|
select TIMER_PROBE
|
|
select TIMER_OF
|
|
help
|
|
This enables the per-hart timer built into all RISC-V systems, which
|
|
is accessed via both the SBI and the rdcycle instruction. This is
|
|
required for all RISC-V systems.
|
|
|
|
config CLINT_TIMER
|
|
bool "CLINT Timer for the RISC-V platform" if COMPILE_TEST
|
|
depends on GENERIC_SCHED_CLOCK && RISCV
|
|
select TIMER_PROBE
|
|
select TIMER_OF
|
|
help
|
|
This option enables the CLINT timer for RISC-V systems. The CLINT
|
|
driver is usually used for NoMMU RISC-V systems.
|
|
|
|
config CSKY_MP_TIMER
|
|
bool "SMP Timer for the C-SKY platform" if COMPILE_TEST
|
|
depends on CSKY
|
|
select TIMER_OF
|
|
help
|
|
Say yes here to enable C-SKY SMP timer driver used for C-SKY SMP
|
|
system.
|
|
csky,mptimer is not only used in SMP system, it also could be used in
|
|
single core system. It's not a mmio reg and it uses mtcr/mfcr instruction.
|
|
|
|
config GX6605S_TIMER
|
|
bool "Gx6605s SOC system timer driver" if COMPILE_TEST
|
|
depends on CSKY
|
|
select CLKSRC_MMIO
|
|
select TIMER_OF
|
|
help
|
|
This option enables support for gx6605s SOC's timer.
|
|
|
|
config MILBEAUT_TIMER
|
|
bool "Milbeaut timer driver" if COMPILE_TEST
|
|
depends on OF
|
|
depends on ARM
|
|
select TIMER_OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables the support for Milbeaut timer driver.
|
|
|
|
config INGENIC_TIMER
|
|
bool "Clocksource/timer using the TCU in Ingenic JZ SoCs"
|
|
default MACH_INGENIC
|
|
depends on MIPS || COMPILE_TEST
|
|
depends on COMMON_CLK
|
|
select MFD_SYSCON
|
|
select TIMER_OF
|
|
select IRQ_DOMAIN
|
|
help
|
|
Support for the timer/counter unit of the Ingenic JZ SoCs.
|
|
|
|
config INGENIC_SYSOST
|
|
bool "Clocksource/timer using the SYSOST in Ingenic X SoCs"
|
|
depends on MIPS || COMPILE_TEST
|
|
depends on COMMON_CLK
|
|
select MFD_SYSCON
|
|
select TIMER_OF
|
|
select IRQ_DOMAIN
|
|
help
|
|
Support for the SYSOST of the Ingenic X Series SoCs.
|
|
|
|
config INGENIC_OST
|
|
bool "Clocksource using the OST in Ingenic JZ SoCs"
|
|
depends on MIPS || COMPILE_TEST
|
|
depends on COMMON_CLK
|
|
select MFD_SYSCON
|
|
help
|
|
Support for the Operating System Timer of the Ingenic JZ SoCs.
|
|
|
|
config MICROCHIP_PIT64B
|
|
bool "Microchip PIT64B support"
|
|
depends on OF || COMPILE_TEST
|
|
select CLKSRC_MMIO
|
|
select TIMER_OF
|
|
help
|
|
This option enables Microchip PIT64B timer for Atmel
|
|
based system. It supports the oneshot, the periodic
|
|
modes and high resolution. It is used as a clocksource
|
|
and a clockevent.
|
|
|
|
endmenu
|