1ec8f24b7SThomas Gleixner# SPDX-License-Identifier: GPL-2.0-only 258394271SJean Delvaremenu "Clock Source drivers" 32f8a26c1SArnd Bergmann depends on GENERIC_CLOCKEVENTS 458394271SJean Delvare 5bb0eb050SDaniel Lezcanoconfig TIMER_OF 6ae278a93SStephen Warren bool 7bb0eb050SDaniel Lezcano select TIMER_PROBE 8aad83b15SMarc Zyngier 9fa1bffabSDaniel Lezcanoconfig TIMER_ACPI 10aad83b15SMarc Zyngier bool 11bb0eb050SDaniel Lezcano select TIMER_PROBE 12aad83b15SMarc Zyngier 13bb0eb050SDaniel Lezcanoconfig TIMER_PROBE 14aad83b15SMarc Zyngier bool 15ae278a93SStephen Warren 1689c0b8e2SRussell Kingconfig CLKSRC_I8253 1789c0b8e2SRussell King bool 18442c8176SRussell King 19e6220bdcSThomas Gleixnerconfig CLKEVT_I8253 20e6220bdcSThomas Gleixner bool 21e6220bdcSThomas Gleixner 2215f304b6SRalf Baechleconfig I8253_LOCK 2315f304b6SRalf Baechle bool 2415f304b6SRalf Baechle 25af04aa85SKeerthyconfig OMAP_DM_TIMER 26af04aa85SKeerthy bool 27af04aa85SKeerthy 2815f304b6SRalf Baechleconfig CLKBLD_I8253 29e6220bdcSThomas Gleixner def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK 3015f304b6SRalf Baechle 31442c8176SRussell Kingconfig CLKSRC_MMIO 32442c8176SRussell King bool 3306c3df49SJamie Iles 342ea879a7SDaniel Lezcanoconfig BCM2835_TIMER 352ea879a7SDaniel Lezcano bool "BCM2835 timer driver" if COMPILE_TEST 362ea879a7SDaniel Lezcano select CLKSRC_MMIO 372ea879a7SDaniel Lezcano help 382ea879a7SDaniel Lezcano Enables the support for the BCM2835 timer driver. 392ea879a7SDaniel Lezcano 401cad71e3SDaniel Lezcanoconfig BCM_KONA_TIMER 411cad71e3SDaniel Lezcano bool "BCM mobile timer driver" if COMPILE_TEST 421cad71e3SDaniel Lezcano select CLKSRC_MMIO 431cad71e3SDaniel Lezcano help 441cad71e3SDaniel Lezcano Enables the support for the BCM Kona mobile timer driver. 451cad71e3SDaniel Lezcano 46721154f9SBartosz Golaszewskiconfig DAVINCI_TIMER 47721154f9SBartosz Golaszewski bool "Texas Instruments DaVinci timer driver" if COMPILE_TEST 48721154f9SBartosz Golaszewski help 49721154f9SBartosz Golaszewski Enables the support for the TI DaVinci timer driver. 50721154f9SBartosz Golaszewski 519b8bb773SBaruch Siachconfig DIGICOLOR_TIMER 52e6c1db13SDaniel Lezcano bool "Digicolor timer driver" if COMPILE_TEST 532be6d9bfSArnd Bergmann select CLKSRC_MMIO 54d7023e62SRichard Weinberger depends on HAS_IOMEM 55e6c1db13SDaniel Lezcano help 56e6c1db13SDaniel Lezcano Enables the support for the digicolor timer driver. 579b8bb773SBaruch Siach 5806c3df49SJamie Ilesconfig DW_APB_TIMER 595b097f6bSDaniel Lezcano bool "DW APB timer driver" if COMPILE_TEST 605b097f6bSDaniel Lezcano help 615b097f6bSDaniel Lezcano Enables the support for the dw_apb timer. 62489bcceaSMattias Wallin 63cfda5901SDinh Nguyenconfig DW_APB_TIMER_OF 64cfda5901SDinh Nguyen bool 651b4eca0fSHeiko Stuebner select DW_APB_TIMER 66bb0eb050SDaniel Lezcano select TIMER_OF 67cfda5901SDinh Nguyen 68f5bf0ee4SLinus Walleijconfig FTTMR010_TIMER 69f5bf0ee4SLinus Walleij bool "Faraday Technology timer driver" if COMPILE_TEST 704750535bSLinus Walleij depends on HAS_IOMEM 714750535bSLinus Walleij select CLKSRC_MMIO 72bb0eb050SDaniel Lezcano select TIMER_OF 734750535bSLinus Walleij select MFD_SYSCON 744750535bSLinus Walleij help 75f5bf0ee4SLinus Walleij Enables support for the Faraday Technology timer block 76f5bf0ee4SLinus Walleij FTTMR010. 774750535bSLinus Walleij 7813e0b405SLinus Walleijconfig IXP4XX_TIMER 7913e0b405SLinus Walleij bool "Intel XScale IXP4xx timer driver" if COMPILE_TEST 8013e0b405SLinus Walleij depends on HAS_IOMEM 8113e0b405SLinus Walleij select CLKSRC_MMIO 8213e0b405SLinus Walleij help 8313e0b405SLinus Walleij Enables support for the Intel XScale IXP4xx SoC timer. 8413e0b405SLinus Walleij 85468b8c4cSDaniel Lezcanoconfig ROCKCHIP_TIMER 8640ada2aaSDaniel Lezcano bool "Rockchip timer driver" if COMPILE_TEST 8740ada2aaSDaniel Lezcano depends on ARM || ARM64 88bb0eb050SDaniel Lezcano select TIMER_OF 895e0a39d0SAlexander Kochetkov select CLKSRC_MMIO 9040ada2aaSDaniel Lezcano help 9106293463SRandy Dunlap Enables the support for the Rockchip timer driver. 92468b8c4cSDaniel Lezcano 936fe9cbd1SGregory CLEMENTconfig ARMADA_370_XP_TIMER 949519e80cSDaniel Lezcano bool "Armada 370 and XP timer driver" if COMPILE_TEST 959519e80cSDaniel Lezcano depends on ARM 96bb0eb050SDaniel Lezcano select TIMER_OF 972be6d9bfSArnd Bergmann select CLKSRC_MMIO 989519e80cSDaniel Lezcano help 999519e80cSDaniel Lezcano Enables the support for the Armada 370 and XP timer driver. 1006fe9cbd1SGregory CLEMENT 101e4a6b378SCarlo Caioneconfig MESON6_TIMER 1020b7a7bb7SDaniel Lezcano bool "Meson6 timer driver" if COMPILE_TEST 1037b6b0a45SBeniamino Galvani select CLKSRC_MMIO 1040b7a7bb7SDaniel Lezcano help 1050b7a7bb7SDaniel Lezcano Enables the support for the Meson6 timer driver. 106e4a6b378SCarlo Caione 1070c1dcfd5SSebastian Hesselbarthconfig ORION_TIMER 108c9165549SDaniel Lezcano bool "Orion timer driver" if COMPILE_TEST 109c9165549SDaniel Lezcano depends on ARM 110bb0eb050SDaniel Lezcano select TIMER_OF 1110c1dcfd5SSebastian Hesselbarth select CLKSRC_MMIO 112c9165549SDaniel Lezcano help 113c9165549SDaniel Lezcano Enables the support for the Orion timer driver 1140c1dcfd5SSebastian Hesselbarth 1154be78a86SAndreas Färberconfig OWL_TIMER 1164be78a86SAndreas Färber bool "Owl timer driver" if COMPILE_TEST 1174be78a86SAndreas Färber select CLKSRC_MMIO 1184be78a86SAndreas Färber help 1194be78a86SAndreas Färber Enables the support for the Actions Semi Owl timer driver. 1204be78a86SAndreas Färber 1217f83a132SManivannan Sadhasivamconfig RDA_TIMER 1227f83a132SManivannan Sadhasivam bool "RDA timer driver" if COMPILE_TEST 1237f83a132SManivannan Sadhasivam select CLKSRC_MMIO 1247f83a132SManivannan Sadhasivam select TIMER_OF 1257f83a132SManivannan Sadhasivam help 1267f83a132SManivannan Sadhasivam Enables the support for the RDA Micro timer driver. 1277f83a132SManivannan Sadhasivam 128119fd635SMaxime Ripardconfig SUN4I_TIMER 129b4fcd48bSDaniel Lezcano bool "Sun4i timer driver" if COMPILE_TEST 130d7023e62SRichard Weinberger depends on HAS_IOMEM 13171c568c0SMaxime Ripard select CLKSRC_MMIO 132239751edSDaniel Lezcano select TIMER_OF 133b4fcd48bSDaniel Lezcano help 134b4fcd48bSDaniel Lezcano Enables support for the Sun4i timer. 135b2ac5d75SMaxime Ripard 13667905540SMaxime Ripardconfig SUN5I_HSTIMER 137f0c5afb7SDaniel Lezcano bool "Sun5i timer driver" if COMPILE_TEST 13867905540SMaxime Ripard select CLKSRC_MMIO 139f0c5afb7SDaniel Lezcano depends on COMMON_CLK 140f0c5afb7SDaniel Lezcano help 141f0c5afb7SDaniel Lezcano Enables support the Sun5i timer. 14267905540SMaxime Ripard 143910978e7SThierry Redingconfig TEGRA_TIMER 144adce4bc8SDaniel Lezcano bool "Tegra timer driver" if COMPILE_TEST 1452be6d9bfSArnd Bergmann select CLKSRC_MMIO 146b4822dc7SJoseph Lo select TIMER_OF 147acb4bb3fSDmitry Osipenko depends on ARCH_TEGRA || COMPILE_TEST 148adce4bc8SDaniel Lezcano help 149adce4bc8SDaniel Lezcano Enables support for the Tegra driver. 150910978e7SThierry Reding 151ff7ec345STony Priskconfig VT8500_TIMER 152b4bdf7efSDaniel Lezcano bool "VT8500 timer driver" if COMPILE_TEST 153d7023e62SRichard Weinberger depends on HAS_IOMEM 154b4bdf7efSDaniel Lezcano help 155b4bdf7efSDaniel Lezcano Enables support for the VT8500 driver. 156ff7ec345STony Prisk 1571c00289eSTomer Maimonconfig NPCM7XX_TIMER 1581c00289eSTomer Maimon bool "NPCM7xx timer driver" if COMPILE_TEST 1591c00289eSTomer Maimon depends on HAS_IOMEM 16099834eeaSArnd Bergmann select TIMER_OF 1611c00289eSTomer Maimon select CLKSRC_MMIO 1621c00289eSTomer Maimon help 1631c00289eSTomer Maimon Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture, 16406293463SRandy Dunlap where TIMER0 serves as clockevent and TIMER1 serves as clocksource. 1651c00289eSTomer Maimon 1664f0f234fSMichal Simekconfig CADENCE_TTC_TIMER 16757f49318SDaniel Lezcano bool "Cadence TTC timer driver" if COMPILE_TEST 16857f49318SDaniel Lezcano depends on COMMON_CLK 16957f49318SDaniel Lezcano help 17006293463SRandy Dunlap Enables support for the Cadence TTC driver. 1714f0f234fSMichal Simek 172a8b1b9fcSDaniel Lezcanoconfig ASM9260_TIMER 173b9755841SDaniel Lezcano bool "ASM9260 timer driver" if COMPILE_TEST 174a8b1b9fcSDaniel Lezcano select CLKSRC_MMIO 175bb0eb050SDaniel Lezcano select TIMER_OF 176b9755841SDaniel Lezcano help 177b9755841SDaniel Lezcano Enables support for the ASM9260 timer. 178a8b1b9fcSDaniel Lezcano 179694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU 18070329653SDaniel Lezcano bool "Nomakdik clocksource driver" if COMPILE_TEST 18170329653SDaniel Lezcano depends on ARM 182694e33a7SLinus Walleij select CLKSRC_MMIO 183694e33a7SLinus Walleij help 184694e33a7SLinus Walleij Support for Multi Timer Unit. MTU provides access 185694e33a7SLinus Walleij to multiple interrupt generating programmable 186694e33a7SLinus Walleij 32-bit free running decrementing counters. 187694e33a7SLinus Walleij 188489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU 1891becd6edSDaniel Lezcano bool "Clocksource PRCMU Timer" if COMPILE_TEST 190d7023e62SRichard Weinberger depends on HAS_IOMEM 191489bcceaSMattias Wallin help 19206293463SRandy Dunlap Use the always on PRCMU Timer as clocksource. 193489bcceaSMattias Wallin 194ecf0efdcSDaniel Lezcanoconfig CLPS711X_TIMER 19506293463SRandy Dunlap bool "Cirrus Logic timer driver" if COMPILE_TEST 196ecf0efdcSDaniel Lezcano select CLKSRC_MMIO 197ecf0efdcSDaniel Lezcano help 198ecf0efdcSDaniel Lezcano Enables support for the Cirrus Logic PS711 timer. 199ecf0efdcSDaniel Lezcano 200b56d5d21SDaniel Lezcanoconfig ATLAS7_TIMER 201b56d5d21SDaniel Lezcano bool "Atlas7 timer driver" if COMPILE_TEST 202b56d5d21SDaniel Lezcano select CLKSRC_MMIO 203b56d5d21SDaniel Lezcano help 204b56d5d21SDaniel Lezcano Enables support for the Atlas7 timer. 205b56d5d21SDaniel Lezcano 206d81c50a0SDaniel Lezcanoconfig MXS_TIMER 20706293463SRandy Dunlap bool "MXS timer driver" if COMPILE_TEST 208d81c50a0SDaniel Lezcano select CLKSRC_MMIO 209d81c50a0SDaniel Lezcano select STMP_DEVICE 210d81c50a0SDaniel Lezcano help 21106293463SRandy Dunlap Enables support for the MXS timer. 212d81c50a0SDaniel Lezcano 213f3550d49SDaniel Lezcanoconfig PRIMA2_TIMER 214f3550d49SDaniel Lezcano bool "Prima2 timer driver" if COMPILE_TEST 215f3550d49SDaniel Lezcano select CLKSRC_MMIO 216f3550d49SDaniel Lezcano help 217f3550d49SDaniel Lezcano Enables support for the Prima2 timer. 218f3550d49SDaniel Lezcano 21985f98db4SDaniel Lezcanoconfig U300_TIMER 22085f98db4SDaniel Lezcano bool "U300 timer driver" if COMPILE_TEST 22185f98db4SDaniel Lezcano depends on ARM 22285f98db4SDaniel Lezcano select CLKSRC_MMIO 22385f98db4SDaniel Lezcano help 22485f98db4SDaniel Lezcano Enables support for the U300 timer. 22585f98db4SDaniel Lezcano 226d683b9dcSDaniel Lezcanoconfig NSPIRE_TIMER 227d683b9dcSDaniel Lezcano bool "NSpire timer driver" if COMPILE_TEST 228d683b9dcSDaniel Lezcano select CLKSRC_MMIO 229d683b9dcSDaniel Lezcano help 230d683b9dcSDaniel Lezcano Enables support for the Nspire timer. 231d683b9dcSDaniel Lezcano 232c12547a0SDaniel Lezcanoconfig KEYSTONE_TIMER 233c12547a0SDaniel Lezcano bool "Keystone timer driver" if COMPILE_TEST 234c12547a0SDaniel Lezcano depends on ARM || ARM64 235c12547a0SDaniel Lezcano select CLKSRC_MMIO 236c12547a0SDaniel Lezcano help 237c12547a0SDaniel Lezcano Enables support for the Keystone timer. 238c12547a0SDaniel Lezcano 239568c0342SDaniel Lezcanoconfig INTEGRATOR_AP_TIMER 24006293463SRandy Dunlap bool "Integrator-AP timer driver" if COMPILE_TEST 241568c0342SDaniel Lezcano select CLKSRC_MMIO 242568c0342SDaniel Lezcano help 24306293463SRandy Dunlap Enables support for the Integrator-AP timer. 244568c0342SDaniel Lezcano 2459c9b7818SUwe Kleine-Königconfig CLKSRC_EFM32 2469c9b7818SUwe Kleine-König bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 2479c9b7818SUwe Kleine-König depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 24809ca2757SAxel Lin select CLKSRC_MMIO 2499c9b7818SUwe Kleine-König default ARCH_EFM32 2509c9b7818SUwe Kleine-König help 2519c9b7818SUwe Kleine-König Support to use the timers of EFM32 SoCs as clock source and clock 2529c9b7818SUwe Kleine-König event device. 2539c9b7818SUwe Kleine-König 254050dd322SJoachim Eastwoodconfig CLKSRC_LPC32XX 255ddcf48c7SDaniel Lezcano bool "Clocksource for LPC32XX" if COMPILE_TEST 2562f8a26c1SArnd Bergmann depends on HAS_IOMEM 2571b18fd20SEzequiel Garcia depends on ARM 258050dd322SJoachim Eastwood select CLKSRC_MMIO 259bb0eb050SDaniel Lezcano select TIMER_OF 260ddcf48c7SDaniel Lezcano help 261ddcf48c7SDaniel Lezcano Support for the LPC32XX clocksource. 262050dd322SJoachim Eastwood 26384583983SEzequiel Garciaconfig CLKSRC_PISTACHIO 264dfdb1652SDaniel Lezcano bool "Clocksource for Pistachio SoC" if COMPILE_TEST 2652f8a26c1SArnd Bergmann depends on HAS_IOMEM 266bb0eb050SDaniel Lezcano select TIMER_OF 267dfdb1652SDaniel Lezcano help 268dfdb1652SDaniel Lezcano Enables the clocksource for the Pistachio SoC. 26984583983SEzequiel Garcia 270fe851f56SFelipe Balbiconfig CLKSRC_TI_32K 271fe851f56SFelipe Balbi bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST 272dfedaf10SFelipe Balbi depends on GENERIC_SCHED_CLOCK 273bb0eb050SDaniel Lezcano select TIMER_OF if OF 274fe851f56SFelipe Balbi help 275fe851f56SFelipe Balbi This option enables support for Texas Instruments 32.768 Hz clocksource 276fe851f56SFelipe Balbi available on many OMAP-like platforms. 277fe851f56SFelipe Balbi 278a5322457SNoam Camusconfig CLKSRC_NPS 279a5322457SNoam Camus bool "NPS400 clocksource driver" if COMPILE_TEST 280a5322457SNoam Camus depends on !PHYS_ADDR_T_64BIT 281a5322457SNoam Camus select CLKSRC_MMIO 282bb0eb050SDaniel Lezcano select TIMER_OF if OF 283a5322457SNoam Camus help 284a5322457SNoam Camus NPS400 clocksource support. 28506293463SRandy Dunlap It has a 64-bit counter with update rate up to 1000MHz. 28606293463SRandy Dunlap This counter is accessed via couple of 32-bit memory-mapped registers. 287a5322457SNoam Camus 288e37e4593SMaxime Coquelinconfig CLKSRC_STM32 2891cb6c215SPaul Gortmaker bool "Clocksource for STM32 SoCs" if !ARCH_STM32 2901cb6c215SPaul Gortmaker depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST) 291e37e4593SMaxime Coquelin select CLKSRC_MMIO 292d04af490SBenjamin Gaignard select TIMER_OF 293e37e4593SMaxime Coquelin 29448b41c5eSBenjamin Gaignardconfig CLKSRC_STM32_LP 29548b41c5eSBenjamin Gaignard bool "Low power clocksource for STM32 SoCs" 29648b41c5eSBenjamin Gaignard depends on MFD_STM32_LPTIMER || COMPILE_TEST 29748b41c5eSBenjamin Gaignard 2980302637fSVladimir Murzinconfig CLKSRC_MPS2 2990302637fSVladimir Murzin bool "Clocksource for MPS2 SoCs" if COMPILE_TEST 3000302637fSVladimir Murzin depends on GENERIC_SCHED_CLOCK 3010302637fSVladimir Murzin select CLKSRC_MMIO 302bb0eb050SDaniel Lezcano select TIMER_OF 3030302637fSVladimir Murzin 304c4c9a040SVineet Guptaconfig ARC_TIMERS 305c4c9a040SVineet Gupta bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST 306bf287607SAlexey Brodkin depends on GENERIC_SCHED_CLOCK 307bb0eb050SDaniel Lezcano select TIMER_OF 308c4c9a040SVineet Gupta help 309c4c9a040SVineet Gupta These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores 310c4c9a040SVineet Gupta (ARC700 as well as ARC HS38). 31106293463SRandy Dunlap TIMER0 serves as clockevent while TIMER1 provides clocksource. 312c4c9a040SVineet Gupta 313c4c9a040SVineet Guptaconfig ARC_TIMERS_64BIT 314c4c9a040SVineet Gupta bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST 315c4c9a040SVineet Gupta depends on ARC_TIMERS 316bb0eb050SDaniel Lezcano select TIMER_OF 317c4c9a040SVineet Gupta help 31806293463SRandy Dunlap This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP). 319c4c9a040SVineet Gupta RTC is implemented inside the core, while GFRC sits outside the core in 320c4c9a040SVineet Gupta ARConnect IP block. Driver automatically picks one of them for clocksource 321c4c9a040SVineet Gupta as appropriate. 322c4c9a040SVineet Gupta 3238a4da6e3SMark Rutlandconfig ARM_ARCH_TIMER 3248a4da6e3SMark Rutland bool 325bb0eb050SDaniel Lezcano select TIMER_OF if OF 326fa1bffabSDaniel Lezcano select TIMER_ACPI if ACPI 327a2c5d4edSJames Hogan 328037f6377SWill Deaconconfig ARM_ARCH_TIMER_EVTSTREAM 32946fd5c6bSWill Deacon bool "Enable ARM architected timer event stream generation by default" 330037f6377SWill Deacon default y if ARM_ARCH_TIMER 33177f7ce9aSStephen Boyd depends on ARM_ARCH_TIMER 332037f6377SWill Deacon help 33346fd5c6bSWill Deacon This option enables support by default for event stream generation 33446fd5c6bSWill Deacon based on the ARM architected timer. It is used for waking up CPUs 33546fd5c6bSWill Deacon executing the wfe instruction at a frequency represented as a 33646fd5c6bSWill Deacon power-of-2 divisor of the clock rate. The behaviour can also be 33746fd5c6bSWill Deacon overridden on the command line using the 33846fd5c6bSWill Deacon clocksource.arm_arch_timer.evtstream parameter. 339037f6377SWill Deacon The main use of the event stream is wfe-based timeouts of userspace 340037f6377SWill Deacon locking implementations. It might also be useful for imposing timeout 341037f6377SWill Deacon on wfe to safeguard against any programming errors in case an expected 342037f6377SWill Deacon event is not generated. 343037f6377SWill Deacon This must be disabled for hardware validation purposes to detect any 344037f6377SWill Deacon hardware anomalies of missing events. 345037f6377SWill Deacon 34616d10ef2SDing Tianhongconfig ARM_ARCH_TIMER_OOL_WORKAROUND 34716d10ef2SDing Tianhong bool 34816d10ef2SDing Tianhong 349f6dc1576SScott Woodconfig FSL_ERRATUM_A008585 350f6dc1576SScott Wood bool "Workaround for Freescale/NXP Erratum A-008585" 351f6dc1576SScott Wood default y 352f6dc1576SScott Wood depends on ARM_ARCH_TIMER && ARM64 35316d10ef2SDing Tianhong select ARM_ARCH_TIMER_OOL_WORKAROUND 354f6dc1576SScott Wood help 355f6dc1576SScott Wood This option enables a workaround for Freescale/NXP Erratum 356f6dc1576SScott Wood A-008585 ("ARM generic timer may contain an erroneous 357f6dc1576SScott Wood value"). The workaround will only be active if the 358f6dc1576SScott Wood fsl,erratum-a008585 property is found in the timer node. 359f6dc1576SScott Wood 360bb42ca47SDing Tianhongconfig HISILICON_ERRATUM_161010101 361bb42ca47SDing Tianhong bool "Workaround for Hisilicon Erratum 161010101" 362bb42ca47SDing Tianhong default y 363bb42ca47SDing Tianhong select ARM_ARCH_TIMER_OOL_WORKAROUND 364bb42ca47SDing Tianhong depends on ARM_ARCH_TIMER && ARM64 365bb42ca47SDing Tianhong help 366bb42ca47SDing Tianhong This option enables a workaround for Hisilicon Erratum 367bb42ca47SDing Tianhong 161010101. The workaround will be active if the hisilicon,erratum-161010101 368bb42ca47SDing Tianhong property is found in the timer node. 369bb42ca47SDing Tianhong 370fa8d815fSMarc Zyngierconfig ARM64_ERRATUM_858921 371fa8d815fSMarc Zyngier bool "Workaround for Cortex-A73 erratum 858921" 372fa8d815fSMarc Zyngier default y 373fa8d815fSMarc Zyngier select ARM_ARCH_TIMER_OOL_WORKAROUND 374fa8d815fSMarc Zyngier depends on ARM_ARCH_TIMER && ARM64 375fa8d815fSMarc Zyngier help 376fa8d815fSMarc Zyngier This option enables a workaround applicable to Cortex-A73 377fa8d815fSMarc Zyngier (all versions), whose counter may return incorrect values. 378fa8d815fSMarc Zyngier The workaround will be dynamically enabled when an affected 379fa8d815fSMarc Zyngier core is detected. 380fa8d815fSMarc Zyngier 381c950ca8cSSamuel Hollandconfig SUN50I_ERRATUM_UNKNOWN1 382c950ca8cSSamuel Holland bool "Workaround for Allwinner A64 erratum UNKNOWN1" 383c950ca8cSSamuel Holland default y 384c950ca8cSSamuel Holland depends on ARM_ARCH_TIMER && ARM64 && ARCH_SUNXI 385c950ca8cSSamuel Holland select ARM_ARCH_TIMER_OOL_WORKAROUND 386c950ca8cSSamuel Holland help 387c950ca8cSSamuel Holland This option enables a workaround for instability in the timer on 388c950ca8cSSamuel Holland the Allwinner A64 SoC. The workaround will only be active if the 389c950ca8cSSamuel Holland allwinner,erratum-unknown1 property is found in the timer node. 390c950ca8cSSamuel Holland 391c1b40e44SStuart Menefyconfig ARM_GLOBAL_TIMER 39267a87a43SDaniel Lezcano bool "Support for the ARM global timer" if COMPILE_TEST 393bb0eb050SDaniel Lezcano select TIMER_OF if OF 39467a87a43SDaniel Lezcano depends on ARM 395c1b40e44SStuart Menefy help 39606293463SRandy Dunlap This option enables support for the ARM global timer unit. 397c1b40e44SStuart Menefy 3980b7402dcSSudeep Hollaconfig ARM_TIMER_SP804 399dfc82faaSDavid Abdurachmanov bool "Support for Dual Timer SP804 module" if COMPILE_TEST 400002af195SGuenter Roeck depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP 4010b7402dcSSudeep Holla select CLKSRC_MMIO 402bb0eb050SDaniel Lezcano select TIMER_OF if OF 4030b7402dcSSudeep Holla 404c1b40e44SStuart Menefyconfig CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK 405c1b40e44SStuart Menefy bool 406c1b40e44SStuart Menefy depends on ARM_GLOBAL_TIMER 407c1b40e44SStuart Menefy default y 408c1b40e44SStuart Menefy help 40906293463SRandy Dunlap Use ARM global timer clock source as sched_clock. 410c1b40e44SStuart Menefy 4114958ebb3SMaxime Coquelinconfig ARMV7M_SYSTICK 412e2146d86SDaniel Lezcano bool "Support for the ARMv7M system time" if COMPILE_TEST 413bb0eb050SDaniel Lezcano select TIMER_OF if OF 4144958ebb3SMaxime Coquelin select CLKSRC_MMIO 4154958ebb3SMaxime Coquelin help 41606293463SRandy Dunlap This option enables support for the ARMv7M system timer unit. 4174958ebb3SMaxime Coquelin 418b052ff30SMaxime Ripardconfig ATMEL_PIT 4192f982703SAlexandre Belloni bool "Atmel PIT support" if COMPILE_TEST 4202f982703SAlexandre Belloni depends on HAS_IOMEM 421bb0eb050SDaniel Lezcano select TIMER_OF if OF 4222f982703SAlexandre Belloni help 4232f982703SAlexandre Belloni Support for the Periodic Interval Timer found on Atmel SoCs. 424b052ff30SMaxime Ripard 425b53cdd03SAlexandre Belloniconfig ATMEL_ST 426b988d3f0SDaniel Lezcano bool "Atmel ST timer support" if COMPILE_TEST 427bd2746f0SMasahiro Yamada depends on HAS_IOMEM 428bb0eb050SDaniel Lezcano select TIMER_OF 4297ab7ef74SAlexandre Belloni select MFD_SYSCON 430b988d3f0SDaniel Lezcano help 431b988d3f0SDaniel Lezcano Support for the Atmel ST timer. 432b53cdd03SAlexandre Belloni 4336275f494SAlexandre Belloniconfig ATMEL_TCB_CLKSRC 4346275f494SAlexandre Belloni bool "Atmel TC Block timer driver" if COMPILE_TEST 4351ce861ceSAlexandre Belloni depends on ARM && HAS_IOMEM 4366275f494SAlexandre Belloni select TIMER_OF if OF 4376275f494SAlexandre Belloni help 4386275f494SAlexandre Belloni Support for Timer Counter Blocks on Atmel SoCs. 4396275f494SAlexandre Belloni 4406938d75aSThomas Abrahamconfig CLKSRC_EXYNOS_MCT 44139366ef4SDaniel Lezcano bool "Exynos multi core timer driver" if COMPILE_TEST 442f1a4c1f3SChanwoo Choi depends on ARM || ARM64 4436938d75aSThomas Abraham help 4446938d75aSThomas Abraham Support for Multi Core Timer controller on Exynos SoCs. 445241a9871SArnd Bergmann 446f1189989STomasz Figaconfig CLKSRC_SAMSUNG_PWM 447de37b0b5SAlexandre Belloni bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST 448d7023e62SRichard Weinberger depends on HAS_IOMEM 449f1189989STomasz Figa help 450f1189989STomasz Figa This is a new clocksource driver for the PWM timer found in 451f1189989STomasz Figa Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver 452f1189989STomasz Figa for all devicetree enabled platforms. This driver will be 453f1189989STomasz Figa needed only on systems that do not have the Exynos MCT available. 454c1967249SJingchang Lu 4552529c3a3SXiubo Liconfig FSL_FTM_TIMER 456ef49336bSDaniel Lezcano bool "Freescale FlexTimer Module driver" if COMPILE_TEST 457d7023e62SRichard Weinberger depends on HAS_IOMEM 45803724ac3SDaniel Lezcano select CLKSRC_MMIO 4592529c3a3SXiubo Li help 4602529c3a3SXiubo Li Support for Freescale FlexTimer Module (FTM) timer. 4612529c3a3SXiubo Li 462c1967249SJingchang Luconfig VF_PIT_TIMER 463c1967249SJingchang Lu bool 4642be6d9bfSArnd Bergmann select CLKSRC_MMIO 465c1967249SJingchang Lu help 46606293463SRandy Dunlap Support for Periodic Interrupt Timer on Freescale Vybrid Family SoCs. 467fd3f1270SMagnus Damm 46889355274SNeil Armstrongconfig OXNAS_RPS_TIMER 46989355274SNeil Armstrong bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST 470bb0eb050SDaniel Lezcano select TIMER_OF 47189355274SNeil Armstrong select CLKSRC_MMIO 47289355274SNeil Armstrong help 47389355274SNeil Armstrong This enables support for the Oxford Semiconductor OXNAS RPS timers. 47489355274SNeil Armstrong 475fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_CMT 476fd3f1270SMagnus Damm bool 477fd3f1270SMagnus Damm 478ecb3530dSMatthias Bruggerconfig MTK_TIMER 479fbca9eabSDaniel Lezcano bool "Mediatek timer driver" if COMPILE_TEST 4802f8a26c1SArnd Bergmann depends on HAS_IOMEM 481bb0eb050SDaniel Lezcano select TIMER_OF 482ecb3530dSMatthias Brugger select CLKSRC_MMIO 483fbca9eabSDaniel Lezcano help 484fbca9eabSDaniel Lezcano Support for Mediatek timer driver. 485ecb3530dSMatthias Brugger 486067bc914SBaolin Wangconfig SPRD_TIMER 4878a1ece26SChunyan Zhang bool "Spreadtrum timer driver" if EXPERT 488067bc914SBaolin Wang depends on HAS_IOMEM 4898a1ece26SChunyan Zhang depends on (ARCH_SPRD || COMPILE_TEST) 4908a1ece26SChunyan Zhang default ARCH_SPRD 491067bc914SBaolin Wang select TIMER_OF 492067bc914SBaolin Wang help 493067bc914SBaolin Wang Enables support for the Spreadtrum timer driver. 494067bc914SBaolin Wang 495fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_MTU2 496fd3f1270SMagnus Damm bool 497fd3f1270SMagnus Damm 498fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_TMU 499fd3f1270SMagnus Damm bool 500fd3f1270SMagnus Damm 501fd3f1270SMagnus Dammconfig SYS_SUPPORTS_EM_STI 502fd3f1270SMagnus Damm bool 503fd3f1270SMagnus Damm 5049995f4f1SRich Felkerconfig CLKSRC_JCORE_PIT 5059995f4f1SRich Felker bool "J-Core PIT timer driver" if COMPILE_TEST 5069995f4f1SRich Felker depends on OF 5079995f4f1SRich Felker depends on HAS_IOMEM 5089995f4f1SRich Felker select CLKSRC_MMIO 5099995f4f1SRich Felker help 5109995f4f1SRich Felker This enables build of clocksource and clockevent driver for 5119995f4f1SRich Felker the integrated PIT in the J-Core synthesizable, open source SoC. 5129995f4f1SRich Felker 513fd3f1270SMagnus Dammconfig SH_TIMER_CMT 514fd3f1270SMagnus Damm bool "Renesas CMT timer driver" if COMPILE_TEST 51511bc26feSRichard Weinberger depends on HAS_IOMEM 516fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_CMT 517fd3f1270SMagnus Damm help 518fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 519fd3f1270SMagnus Damm the Compare Match Timer (CMT) hardware available in 16/32/48-bit 520fd3f1270SMagnus Damm variants on a wide range of Mobile and Automotive SoCs from Renesas. 521fd3f1270SMagnus Damm 522fd3f1270SMagnus Dammconfig SH_TIMER_MTU2 523fd3f1270SMagnus Damm bool "Renesas MTU2 timer driver" if COMPILE_TEST 52411bc26feSRichard Weinberger depends on HAS_IOMEM 525fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_MTU2 526fd3f1270SMagnus Damm help 527fd3f1270SMagnus Damm This enables build of a clockevent driver for the Multi-Function 5287e139187SKuninori Morimoto Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. 52906293463SRandy Dunlap This hardware comes with 16-bit timer registers. 530fd3f1270SMagnus Damm 531fb6002a8SChris Brandtconfig RENESAS_OSTM 532fb6002a8SChris Brandt bool "Renesas OSTM timer driver" if COMPILE_TEST 533fb6002a8SChris Brandt select CLKSRC_MMIO 53422731423SGeert Uytterhoeven select TIMER_OF 535fb6002a8SChris Brandt help 536fb6002a8SChris Brandt Enables the support for the Renesas OSTM. 537fb6002a8SChris Brandt 538fd3f1270SMagnus Dammconfig SH_TIMER_TMU 539fd3f1270SMagnus Damm bool "Renesas TMU timer driver" if COMPILE_TEST 54011bc26feSRichard Weinberger depends on HAS_IOMEM 541fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_TMU 542fd3f1270SMagnus Damm help 543fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 544fd3f1270SMagnus Damm the 32-bit Timer Unit (TMU) hardware available on a wide range 545fd3f1270SMagnus Damm SoCs from Renesas. 546fd3f1270SMagnus Damm 547fd3f1270SMagnus Dammconfig EM_TIMER_STI 548fd3f1270SMagnus Damm bool "Renesas STI timer driver" if COMPILE_TEST 5492f8a26c1SArnd Bergmann depends on HAS_IOMEM 550fd3f1270SMagnus Damm default SYS_SUPPORTS_EM_STI 551fd3f1270SMagnus Damm help 552fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 553fd3f1270SMagnus Damm the 48-bit System Timer (STI) hardware available on a SoCs 554fd3f1270SMagnus Damm such as EMEV2 from former NEC Electronics. 555dfc25e45SLinus Torvalds 5563f8e8ceeSKumar Galaconfig CLKSRC_QCOM 5573dc0e9f6SDaniel Lezcano bool "Qualcomm MSM timer" if COMPILE_TEST 5583dc0e9f6SDaniel Lezcano depends on ARM 559bb0eb050SDaniel Lezcano select TIMER_OF 5603dc0e9f6SDaniel Lezcano help 5613dc0e9f6SDaniel Lezcano This enables the clocksource and the per CPU clockevent driver for the 5623dc0e9f6SDaniel Lezcano Qualcomm SoCs. 563220e2a8dSPawel Moll 564220e2a8dSPawel Mollconfig CLKSRC_VERSATILE 5655cc87a4dSDaniel Lezcano bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST 5665cc87a4dSDaniel Lezcano depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET 567bb0eb050SDaniel Lezcano select TIMER_OF 568bfed0edeSRob Herring default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM 569220e2a8dSPawel Moll help 570220e2a8dSPawel Moll This option enables clock source based on free running 571220e2a8dSPawel Moll counter available in the "System Registers" block of 572bfed0edeSRob Herring ARM Versatile and Versatile Express reference platforms. 57358394271SJean Delvare 574fa5635a2SAndrew Brestickerconfig CLKSRC_MIPS_GIC 575fa5635a2SAndrew Bresticker bool 576fa5635a2SAndrew Bresticker depends on MIPS_GIC 5777d7de1a6SSerge Semin select CLOCKSOURCE_WATCHDOG 578bb0eb050SDaniel Lezcano select TIMER_OF 579fa5635a2SAndrew Bresticker 580ccd63ce4SMarc Gonzalezconfig CLKSRC_TANGO_XTAL 5815a7351f0SDaniel Lezcano bool "Clocksource for Tango SoC" if COMPILE_TEST 5825a7351f0SDaniel Lezcano depends on ARM 583bb0eb050SDaniel Lezcano select TIMER_OF 5840881841fSDaniel Lezcano select CLKSRC_MMIO 5855a7351f0SDaniel Lezcano help 58606293463SRandy Dunlap This enables the clocksource for Tango SoC. 587ccd63ce4SMarc Gonzalez 588e074ff86SDmitry Eremin-Solenikovconfig CLKSRC_PXA 5895ae996cbSDaniel Lezcano bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST 590d7023e62SRichard Weinberger depends on HAS_IOMEM 5915ae996cbSDaniel Lezcano select CLKSRC_MMIO 592e074ff86SDmitry Eremin-Solenikov help 593e074ff86SDmitry Eremin-Solenikov This enables OST0 support available on PXA and SA-11x0 594e074ff86SDmitry Eremin-Solenikov platforms. 595618b902dSYoshinori Sato 59697a23bebSDaniel Lezcanoconfig H8300_TMR8 59746e7c3c6SDaniel Lezcano bool "Clockevent timer for the H8300 platform" if COMPILE_TEST 5982f8a26c1SArnd Bergmann depends on HAS_IOMEM 59946e7c3c6SDaniel Lezcano help 60046e7c3c6SDaniel Lezcano This enables the 8 bits timer for the H8300 platform. 60197a23bebSDaniel Lezcano 602618b902dSYoshinori Satoconfig H8300_TMR16 60346e7c3c6SDaniel Lezcano bool "Clockevent timer for the H83069 platform" if COMPILE_TEST 6042f8a26c1SArnd Bergmann depends on HAS_IOMEM 60546e7c3c6SDaniel Lezcano help 60646e7c3c6SDaniel Lezcano This enables the 16 bits timer for the H8300 platform with the 60706293463SRandy Dunlap H83069 CPU. 608618b902dSYoshinori Sato 609618b902dSYoshinori Satoconfig H8300_TPU 61046e7c3c6SDaniel Lezcano bool "Clocksource for the H8300 platform" if COMPILE_TEST 6112f8a26c1SArnd Bergmann depends on HAS_IOMEM 61246e7c3c6SDaniel Lezcano help 61346e7c3c6SDaniel Lezcano This enables the clocksource for the H8300 platform with the 61406293463SRandy Dunlap H8S2678 CPU. 615618b902dSYoshinori Sato 616bea5af41SShawn Guoconfig CLKSRC_IMX_GPT 617bea5af41SShawn Guo bool "Clocksource using i.MX GPT" if COMPILE_TEST 618df181e38SAnson Huang depends on (ARM || ARM64) && CLKDEV_LOOKUP 619bea5af41SShawn Guo select CLKSRC_MMIO 620bea5af41SShawn Guo 621059ab7b8SDong Aishengconfig CLKSRC_IMX_TPM 622059ab7b8SDong Aisheng bool "Clocksource using i.MX TPM" if COMPILE_TEST 6232f8a26c1SArnd Bergmann depends on ARM && CLKDEV_LOOKUP 624059ab7b8SDong Aisheng select CLKSRC_MMIO 625059ab7b8SDong Aisheng help 626059ab7b8SDong Aisheng Enable this option to use IMX Timer/PWM Module (TPM) timer as 627059ab7b8SDong Aisheng clocksource. 628059ab7b8SDong Aisheng 6297117a44bSBai Pingconfig TIMER_IMX_SYS_CTR 6307117a44bSBai Ping bool "i.MX system counter timer" if COMPILE_TEST 6317117a44bSBai Ping select TIMER_OF 6327117a44bSBai Ping help 6337117a44bSBai Ping Enable this option to use i.MX system counter timer as a 6347117a44bSBai Ping clockevent. 6357117a44bSBai Ping 63670bef01cSLee Jonesconfig CLKSRC_ST_LPC 637baacaf83SDaniel Lezcano bool "Low power clocksource found in the LPC" if COMPILE_TEST 638bb0eb050SDaniel Lezcano select TIMER_OF if OF 639863ee050SRichard Weinberger depends on HAS_IOMEM 6402be6d9bfSArnd Bergmann select CLKSRC_MMIO 64170bef01cSLee Jones help 64270bef01cSLee Jones Enable this option to use the Low Power controller timer 64370bef01cSLee Jones as clocksource. 64470bef01cSLee Jones 64535dbb74aSRick Chenconfig ATCPIT100_TIMER 64635dbb74aSRick Chen bool "ATCPIT100 timer driver" 64735dbb74aSRick Chen depends on NDS32 || COMPILE_TEST 64835dbb74aSRick Chen depends on HAS_IOMEM 64935dbb74aSRick Chen select TIMER_OF 65035dbb74aSRick Chen default NDS32 65135dbb74aSRick Chen help 65235dbb74aSRick Chen This option enables support for the Andestech ATCPIT100 timers. 65335dbb74aSRick Chen 65462b01943SPalmer Dabbeltconfig RISCV_TIMER 65562b01943SPalmer Dabbelt bool "Timer for the RISC-V platform" 65692e0d143SAnup Patel depends on GENERIC_SCHED_CLOCK && RISCV 65762b01943SPalmer Dabbelt default y 65862b01943SPalmer Dabbelt select TIMER_PROBE 65962b01943SPalmer Dabbelt select TIMER_OF 66062b01943SPalmer Dabbelt help 66162b01943SPalmer Dabbelt This enables the per-hart timer built into all RISC-V systems, which 66262b01943SPalmer Dabbelt is accessed via both the SBI and the rdcycle instruction. This is 66362b01943SPalmer Dabbelt required for all RISC-V systems. 66462b01943SPalmer Dabbelt 665a7ad38b0SGuo Renconfig CSKY_MP_TIMER 666a7ad38b0SGuo Ren bool "SMP Timer for the C-SKY platform" if COMPILE_TEST 667a7ad38b0SGuo Ren depends on CSKY 668a7ad38b0SGuo Ren select TIMER_OF 669a7ad38b0SGuo Ren help 670a7ad38b0SGuo Ren Say yes here to enable C-SKY SMP timer driver used for C-SKY SMP 671a7ad38b0SGuo Ren system. 67206293463SRandy Dunlap csky,mptimer is not only used in SMP system, it also could be used in 67306293463SRandy Dunlap single core system. It's not a mmio reg and it uses mtcr/mfcr instruction. 674a7ad38b0SGuo Ren 67533745c3cSGuo Renconfig GX6605S_TIMER 67633745c3cSGuo Ren bool "Gx6605s SOC system timer driver" if COMPILE_TEST 67733745c3cSGuo Ren depends on CSKY 67833745c3cSGuo Ren select CLKSRC_MMIO 67933745c3cSGuo Ren select TIMER_OF 68033745c3cSGuo Ren help 68133745c3cSGuo Ren This option enables support for gx6605s SOC's timer. 68233745c3cSGuo Ren 683b58f28f3SSugaya Taichiconfig MILBEAUT_TIMER 684b58f28f3SSugaya Taichi bool "Milbeaut timer driver" if COMPILE_TEST 685b58f28f3SSugaya Taichi depends on OF 686b58f28f3SSugaya Taichi depends on ARM 687b58f28f3SSugaya Taichi select TIMER_OF 688b58f28f3SSugaya Taichi select CLKSRC_MMIO 689b58f28f3SSugaya Taichi help 690b58f28f3SSugaya Taichi Enables the support for Milbeaut timer driver. 691b58f28f3SSugaya Taichi 69234e93683SPaul Cercueilconfig INGENIC_TIMER 69334e93683SPaul Cercueil bool "Clocksource/timer using the TCU in Ingenic JZ SoCs" 69434e93683SPaul Cercueil default MACH_INGENIC 69534e93683SPaul Cercueil depends on MIPS || COMPILE_TEST 69634e93683SPaul Cercueil depends on COMMON_CLK 69734e93683SPaul Cercueil select MFD_SYSCON 69834e93683SPaul Cercueil select TIMER_OF 69934e93683SPaul Cercueil select IRQ_DOMAIN 70034e93683SPaul Cercueil help 70134e93683SPaul Cercueil Support for the timer/counter unit of the Ingenic JZ SoCs. 70234e93683SPaul Cercueil 703ca7b72b5SMaarten ter Huurneconfig INGENIC_OST 704ca7b72b5SMaarten ter Huurne bool "Clocksource for Ingenic OS Timer" 705ca7b72b5SMaarten ter Huurne depends on MIPS || COMPILE_TEST 706ca7b72b5SMaarten ter Huurne depends on COMMON_CLK 707ca7b72b5SMaarten ter Huurne select MFD_SYSCON 708ca7b72b5SMaarten ter Huurne help 709ca7b72b5SMaarten ter Huurne Support for the Operating System Timer of the Ingenic JZ SoCs. 710ca7b72b5SMaarten ter Huurne 711625022a5SClaudiu Bezneaconfig MICROCHIP_PIT64B 712625022a5SClaudiu Beznea bool "Microchip PIT64B support" 713625022a5SClaudiu Beznea depends on OF || COMPILE_TEST 714625022a5SClaudiu Beznea select CLKSRC_MMIO 71525259f7aSMichael Ellerman select TIMER_OF 716625022a5SClaudiu Beznea help 717625022a5SClaudiu Beznea This option enables Microchip PIT64B timer for Atmel 718625022a5SClaudiu Beznea based system. It supports the oneshot, the periodic 719625022a5SClaudiu Beznea modes and high resolution. It is used as a clocksource 720625022a5SClaudiu Beznea and a clockevent. 721625022a5SClaudiu Beznea 72258394271SJean Delvareendmenu 723