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 27eda9a4f7SKees Cook select TIMER_OF 28af04aa85SKeerthy 2915f304b6SRalf Baechleconfig CLKBLD_I8253 30e6220bdcSThomas Gleixner def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK 3115f304b6SRalf Baechle 32442c8176SRussell Kingconfig CLKSRC_MMIO 33442c8176SRussell King bool 3406c3df49SJamie Iles 352ea879a7SDaniel Lezcanoconfig BCM2835_TIMER 362ea879a7SDaniel Lezcano bool "BCM2835 timer driver" if COMPILE_TEST 372ea879a7SDaniel Lezcano select CLKSRC_MMIO 382ea879a7SDaniel Lezcano help 392ea879a7SDaniel Lezcano Enables the support for the BCM2835 timer driver. 402ea879a7SDaniel Lezcano 411cad71e3SDaniel Lezcanoconfig BCM_KONA_TIMER 421cad71e3SDaniel Lezcano bool "BCM mobile timer driver" if COMPILE_TEST 431cad71e3SDaniel Lezcano select CLKSRC_MMIO 441cad71e3SDaniel Lezcano help 451cad71e3SDaniel Lezcano Enables the support for the BCM Kona mobile timer driver. 461cad71e3SDaniel Lezcano 47721154f9SBartosz Golaszewskiconfig DAVINCI_TIMER 48721154f9SBartosz Golaszewski bool "Texas Instruments DaVinci timer driver" if COMPILE_TEST 49721154f9SBartosz Golaszewski help 50721154f9SBartosz Golaszewski Enables the support for the TI DaVinci timer driver. 51721154f9SBartosz Golaszewski 529b8bb773SBaruch Siachconfig DIGICOLOR_TIMER 53e6c1db13SDaniel Lezcano bool "Digicolor timer driver" if COMPILE_TEST 542be6d9bfSArnd Bergmann select CLKSRC_MMIO 55d7023e62SRichard Weinberger depends on HAS_IOMEM 56e6c1db13SDaniel Lezcano help 57e6c1db13SDaniel Lezcano Enables the support for the digicolor timer driver. 589b8bb773SBaruch Siach 5906c3df49SJamie Ilesconfig DW_APB_TIMER 605b097f6bSDaniel Lezcano bool "DW APB timer driver" if COMPILE_TEST 615b097f6bSDaniel Lezcano help 625b097f6bSDaniel Lezcano Enables the support for the dw_apb timer. 63489bcceaSMattias Wallin 64cfda5901SDinh Nguyenconfig DW_APB_TIMER_OF 65cfda5901SDinh Nguyen bool 661b4eca0fSHeiko Stuebner select DW_APB_TIMER 67bb0eb050SDaniel Lezcano select TIMER_OF 68cfda5901SDinh Nguyen 69f5bf0ee4SLinus Walleijconfig FTTMR010_TIMER 70f5bf0ee4SLinus Walleij bool "Faraday Technology timer driver" if COMPILE_TEST 714750535bSLinus Walleij depends on HAS_IOMEM 724750535bSLinus Walleij select CLKSRC_MMIO 73bb0eb050SDaniel Lezcano select TIMER_OF 744750535bSLinus Walleij select MFD_SYSCON 754750535bSLinus Walleij help 76f5bf0ee4SLinus Walleij Enables support for the Faraday Technology timer block 77f5bf0ee4SLinus Walleij FTTMR010. 784750535bSLinus Walleij 7913e0b405SLinus Walleijconfig IXP4XX_TIMER 8013e0b405SLinus Walleij bool "Intel XScale IXP4xx timer driver" if COMPILE_TEST 8113e0b405SLinus Walleij depends on HAS_IOMEM 8213e0b405SLinus Walleij select CLKSRC_MMIO 8341929c9fSLinus Walleij select TIMER_OF 8413e0b405SLinus Walleij help 8513e0b405SLinus Walleij Enables support for the Intel XScale IXP4xx SoC timer. 8613e0b405SLinus Walleij 87468b8c4cSDaniel Lezcanoconfig ROCKCHIP_TIMER 8840ada2aaSDaniel Lezcano bool "Rockchip timer driver" if COMPILE_TEST 8940ada2aaSDaniel Lezcano depends on ARM || ARM64 90bb0eb050SDaniel Lezcano select TIMER_OF 915e0a39d0SAlexander Kochetkov select CLKSRC_MMIO 9240ada2aaSDaniel Lezcano help 9306293463SRandy Dunlap Enables the support for the Rockchip timer driver. 94468b8c4cSDaniel Lezcano 956fe9cbd1SGregory CLEMENTconfig ARMADA_370_XP_TIMER 969519e80cSDaniel Lezcano bool "Armada 370 and XP timer driver" if COMPILE_TEST 979519e80cSDaniel Lezcano depends on ARM 98bb0eb050SDaniel Lezcano select TIMER_OF 992be6d9bfSArnd Bergmann select CLKSRC_MMIO 1009519e80cSDaniel Lezcano help 1019519e80cSDaniel Lezcano Enables the support for the Armada 370 and XP timer driver. 1026fe9cbd1SGregory CLEMENT 103e4a6b378SCarlo Caioneconfig MESON6_TIMER 1040b7a7bb7SDaniel Lezcano bool "Meson6 timer driver" if COMPILE_TEST 1057b6b0a45SBeniamino Galvani select CLKSRC_MMIO 1060b7a7bb7SDaniel Lezcano help 1070b7a7bb7SDaniel Lezcano Enables the support for the Meson6 timer driver. 108e4a6b378SCarlo Caione 1090c1dcfd5SSebastian Hesselbarthconfig ORION_TIMER 110c9165549SDaniel Lezcano bool "Orion timer driver" if COMPILE_TEST 111c9165549SDaniel Lezcano depends on ARM 112bb0eb050SDaniel Lezcano select TIMER_OF 1130c1dcfd5SSebastian Hesselbarth select CLKSRC_MMIO 114c9165549SDaniel Lezcano help 115c9165549SDaniel Lezcano Enables the support for the Orion timer driver 1160c1dcfd5SSebastian Hesselbarth 1174be78a86SAndreas Färberconfig OWL_TIMER 1184be78a86SAndreas Färber bool "Owl timer driver" if COMPILE_TEST 1194be78a86SAndreas Färber select CLKSRC_MMIO 1204be78a86SAndreas Färber help 1214be78a86SAndreas Färber Enables the support for the Actions Semi Owl timer driver. 1224be78a86SAndreas Färber 1237f83a132SManivannan Sadhasivamconfig RDA_TIMER 1247f83a132SManivannan Sadhasivam bool "RDA timer driver" if COMPILE_TEST 1257f83a132SManivannan Sadhasivam select CLKSRC_MMIO 1267f83a132SManivannan Sadhasivam select TIMER_OF 1277f83a132SManivannan Sadhasivam help 1287f83a132SManivannan Sadhasivam Enables the support for the RDA Micro timer driver. 1297f83a132SManivannan Sadhasivam 130119fd635SMaxime Ripardconfig SUN4I_TIMER 131b4fcd48bSDaniel Lezcano bool "Sun4i timer driver" if COMPILE_TEST 132d7023e62SRichard Weinberger depends on HAS_IOMEM 13371c568c0SMaxime Ripard select CLKSRC_MMIO 134239751edSDaniel Lezcano select TIMER_OF 135b4fcd48bSDaniel Lezcano help 136b4fcd48bSDaniel Lezcano Enables support for the Sun4i timer. 137b2ac5d75SMaxime Ripard 13867905540SMaxime Ripardconfig SUN5I_HSTIMER 139f0c5afb7SDaniel Lezcano bool "Sun5i timer driver" if COMPILE_TEST 14067905540SMaxime Ripard select CLKSRC_MMIO 141f0c5afb7SDaniel Lezcano depends on COMMON_CLK 142f0c5afb7SDaniel Lezcano help 143f0c5afb7SDaniel Lezcano Enables support the Sun5i timer. 14467905540SMaxime Ripard 145910978e7SThierry Redingconfig TEGRA_TIMER 146adce4bc8SDaniel Lezcano bool "Tegra timer driver" if COMPILE_TEST 1472be6d9bfSArnd Bergmann select CLKSRC_MMIO 148b4822dc7SJoseph Lo select TIMER_OF 149acb4bb3fSDmitry Osipenko depends on ARCH_TEGRA || COMPILE_TEST 150adce4bc8SDaniel Lezcano help 151adce4bc8SDaniel Lezcano Enables support for the Tegra driver. 152910978e7SThierry Reding 153ff7ec345STony Priskconfig VT8500_TIMER 154b4bdf7efSDaniel Lezcano bool "VT8500 timer driver" if COMPILE_TEST 155d7023e62SRichard Weinberger depends on HAS_IOMEM 156b4bdf7efSDaniel Lezcano help 157b4bdf7efSDaniel Lezcano Enables support for the VT8500 driver. 158ff7ec345STony Prisk 1591c00289eSTomer Maimonconfig NPCM7XX_TIMER 1601c00289eSTomer Maimon bool "NPCM7xx timer driver" if COMPILE_TEST 1611c00289eSTomer Maimon depends on HAS_IOMEM 16299834eeaSArnd Bergmann select TIMER_OF 1631c00289eSTomer Maimon select CLKSRC_MMIO 1641c00289eSTomer Maimon help 1651c00289eSTomer Maimon Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture, 16606293463SRandy Dunlap where TIMER0 serves as clockevent and TIMER1 serves as clocksource. 1671c00289eSTomer Maimon 1684f0f234fSMichal Simekconfig CADENCE_TTC_TIMER 16957f49318SDaniel Lezcano bool "Cadence TTC timer driver" if COMPILE_TEST 17057f49318SDaniel Lezcano depends on COMMON_CLK 17157f49318SDaniel Lezcano help 17206293463SRandy Dunlap Enables support for the Cadence TTC driver. 1734f0f234fSMichal Simek 174a8b1b9fcSDaniel Lezcanoconfig ASM9260_TIMER 175b9755841SDaniel Lezcano bool "ASM9260 timer driver" if COMPILE_TEST 176a8b1b9fcSDaniel Lezcano select CLKSRC_MMIO 177bb0eb050SDaniel Lezcano select TIMER_OF 178b9755841SDaniel Lezcano help 179b9755841SDaniel Lezcano Enables support for the ASM9260 timer. 180a8b1b9fcSDaniel Lezcano 181694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU 18270329653SDaniel Lezcano bool "Nomakdik clocksource driver" if COMPILE_TEST 18370329653SDaniel Lezcano depends on ARM 184694e33a7SLinus Walleij select CLKSRC_MMIO 185694e33a7SLinus Walleij help 186694e33a7SLinus Walleij Support for Multi Timer Unit. MTU provides access 187694e33a7SLinus Walleij to multiple interrupt generating programmable 188694e33a7SLinus Walleij 32-bit free running decrementing counters. 189694e33a7SLinus Walleij 190489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU 1911becd6edSDaniel Lezcano bool "Clocksource PRCMU Timer" if COMPILE_TEST 192d7023e62SRichard Weinberger depends on HAS_IOMEM 193489bcceaSMattias Wallin help 19406293463SRandy Dunlap Use the always on PRCMU Timer as clocksource. 195489bcceaSMattias Wallin 196ecf0efdcSDaniel Lezcanoconfig CLPS711X_TIMER 19706293463SRandy Dunlap bool "Cirrus Logic timer driver" if COMPILE_TEST 198ecf0efdcSDaniel Lezcano select CLKSRC_MMIO 199ecf0efdcSDaniel Lezcano help 200ecf0efdcSDaniel Lezcano Enables support for the Cirrus Logic PS711 timer. 201ecf0efdcSDaniel Lezcano 202d81c50a0SDaniel Lezcanoconfig MXS_TIMER 20306293463SRandy Dunlap bool "MXS timer driver" if COMPILE_TEST 204d81c50a0SDaniel Lezcano select CLKSRC_MMIO 205d81c50a0SDaniel Lezcano select STMP_DEVICE 206d81c50a0SDaniel Lezcano help 20706293463SRandy Dunlap Enables support for the MXS timer. 208d81c50a0SDaniel Lezcano 209d683b9dcSDaniel Lezcanoconfig NSPIRE_TIMER 210d683b9dcSDaniel Lezcano bool "NSpire timer driver" if COMPILE_TEST 211d683b9dcSDaniel Lezcano select CLKSRC_MMIO 212d683b9dcSDaniel Lezcano help 213d683b9dcSDaniel Lezcano Enables support for the Nspire timer. 214d683b9dcSDaniel Lezcano 215c12547a0SDaniel Lezcanoconfig KEYSTONE_TIMER 216c12547a0SDaniel Lezcano bool "Keystone timer driver" if COMPILE_TEST 217c12547a0SDaniel Lezcano depends on ARM || ARM64 218c12547a0SDaniel Lezcano select CLKSRC_MMIO 219c12547a0SDaniel Lezcano help 220c12547a0SDaniel Lezcano Enables support for the Keystone timer. 221c12547a0SDaniel Lezcano 222568c0342SDaniel Lezcanoconfig INTEGRATOR_AP_TIMER 22306293463SRandy Dunlap bool "Integrator-AP timer driver" if COMPILE_TEST 224568c0342SDaniel Lezcano select CLKSRC_MMIO 225568c0342SDaniel Lezcano help 22606293463SRandy Dunlap Enables support for the Integrator-AP timer. 227568c0342SDaniel Lezcano 228050dd322SJoachim Eastwoodconfig CLKSRC_LPC32XX 229ddcf48c7SDaniel Lezcano bool "Clocksource for LPC32XX" if COMPILE_TEST 2302f8a26c1SArnd Bergmann depends on HAS_IOMEM 2311b18fd20SEzequiel Garcia depends on ARM 232050dd322SJoachim Eastwood select CLKSRC_MMIO 233bb0eb050SDaniel Lezcano select TIMER_OF 234ddcf48c7SDaniel Lezcano help 235ddcf48c7SDaniel Lezcano Support for the LPC32XX clocksource. 236050dd322SJoachim Eastwood 23784583983SEzequiel Garciaconfig CLKSRC_PISTACHIO 2381e4fd60bSJiaxun Yang bool "Clocksource for Pistachio SoC" 2392f8a26c1SArnd Bergmann depends on HAS_IOMEM 2401e4fd60bSJiaxun Yang depends on MIPS || COMPILE_TEST 241bb0eb050SDaniel Lezcano select TIMER_OF 242dfdb1652SDaniel Lezcano help 243dfdb1652SDaniel Lezcano Enables the clocksource for the Pistachio SoC. 24484583983SEzequiel Garcia 245fe851f56SFelipe Balbiconfig CLKSRC_TI_32K 246fe851f56SFelipe Balbi bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST 247dfedaf10SFelipe Balbi depends on GENERIC_SCHED_CLOCK 248bb0eb050SDaniel Lezcano select TIMER_OF if OF 249fe851f56SFelipe Balbi help 250fe851f56SFelipe Balbi This option enables support for Texas Instruments 32.768 Hz clocksource 251fe851f56SFelipe Balbi available on many OMAP-like platforms. 252fe851f56SFelipe Balbi 253e37e4593SMaxime Coquelinconfig CLKSRC_STM32 2541cb6c215SPaul Gortmaker bool "Clocksource for STM32 SoCs" if !ARCH_STM32 2551cb6c215SPaul Gortmaker depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST) 256e37e4593SMaxime Coquelin select CLKSRC_MMIO 257d04af490SBenjamin Gaignard select TIMER_OF 258e37e4593SMaxime Coquelin 25948b41c5eSBenjamin Gaignardconfig CLKSRC_STM32_LP 26048b41c5eSBenjamin Gaignard bool "Low power clocksource for STM32 SoCs" 26148b41c5eSBenjamin Gaignard depends on MFD_STM32_LPTIMER || COMPILE_TEST 26248b41c5eSBenjamin Gaignard 2630302637fSVladimir Murzinconfig CLKSRC_MPS2 2640302637fSVladimir Murzin bool "Clocksource for MPS2 SoCs" if COMPILE_TEST 2650302637fSVladimir Murzin depends on GENERIC_SCHED_CLOCK 2660302637fSVladimir Murzin select CLKSRC_MMIO 267bb0eb050SDaniel Lezcano select TIMER_OF 2680302637fSVladimir Murzin 269c4c9a040SVineet Guptaconfig ARC_TIMERS 270c4c9a040SVineet Gupta bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST 271bf287607SAlexey Brodkin depends on GENERIC_SCHED_CLOCK 272bb0eb050SDaniel Lezcano select TIMER_OF 273c4c9a040SVineet Gupta help 274c4c9a040SVineet Gupta These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores 275c4c9a040SVineet Gupta (ARC700 as well as ARC HS38). 27606293463SRandy Dunlap TIMER0 serves as clockevent while TIMER1 provides clocksource. 277c4c9a040SVineet Gupta 278c4c9a040SVineet Guptaconfig ARC_TIMERS_64BIT 279c4c9a040SVineet Gupta bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST 280c4c9a040SVineet Gupta depends on ARC_TIMERS 281bb0eb050SDaniel Lezcano select TIMER_OF 282c4c9a040SVineet Gupta help 28306293463SRandy Dunlap This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP). 284c4c9a040SVineet Gupta RTC is implemented inside the core, while GFRC sits outside the core in 285c4c9a040SVineet Gupta ARConnect IP block. Driver automatically picks one of them for clocksource 286c4c9a040SVineet Gupta as appropriate. 287c4c9a040SVineet Gupta 2888a4da6e3SMark Rutlandconfig ARM_ARCH_TIMER 2898a4da6e3SMark Rutland bool 290bb0eb050SDaniel Lezcano select TIMER_OF if OF 291fa1bffabSDaniel Lezcano select TIMER_ACPI if ACPI 292a2c5d4edSJames Hogan 293037f6377SWill Deaconconfig ARM_ARCH_TIMER_EVTSTREAM 29446fd5c6bSWill Deacon bool "Enable ARM architected timer event stream generation by default" 295037f6377SWill Deacon default y if ARM_ARCH_TIMER 29677f7ce9aSStephen Boyd depends on ARM_ARCH_TIMER 297037f6377SWill Deacon help 29846fd5c6bSWill Deacon This option enables support by default for event stream generation 29946fd5c6bSWill Deacon based on the ARM architected timer. It is used for waking up CPUs 30046fd5c6bSWill Deacon executing the wfe instruction at a frequency represented as a 30146fd5c6bSWill Deacon power-of-2 divisor of the clock rate. The behaviour can also be 30246fd5c6bSWill Deacon overridden on the command line using the 30346fd5c6bSWill Deacon clocksource.arm_arch_timer.evtstream parameter. 304037f6377SWill Deacon The main use of the event stream is wfe-based timeouts of userspace 305037f6377SWill Deacon locking implementations. It might also be useful for imposing timeout 306037f6377SWill Deacon on wfe to safeguard against any programming errors in case an expected 307037f6377SWill Deacon event is not generated. 308037f6377SWill Deacon This must be disabled for hardware validation purposes to detect any 309037f6377SWill Deacon hardware anomalies of missing events. 310037f6377SWill Deacon 31116d10ef2SDing Tianhongconfig ARM_ARCH_TIMER_OOL_WORKAROUND 31216d10ef2SDing Tianhong bool 31316d10ef2SDing Tianhong 314f6dc1576SScott Woodconfig FSL_ERRATUM_A008585 315f6dc1576SScott Wood bool "Workaround for Freescale/NXP Erratum A-008585" 316f6dc1576SScott Wood default y 317f6dc1576SScott Wood depends on ARM_ARCH_TIMER && ARM64 31816d10ef2SDing Tianhong select ARM_ARCH_TIMER_OOL_WORKAROUND 319f6dc1576SScott Wood help 320f6dc1576SScott Wood This option enables a workaround for Freescale/NXP Erratum 321f6dc1576SScott Wood A-008585 ("ARM generic timer may contain an erroneous 322f6dc1576SScott Wood value"). The workaround will only be active if the 323f6dc1576SScott Wood fsl,erratum-a008585 property is found in the timer node. 324f6dc1576SScott Wood 325bb42ca47SDing Tianhongconfig HISILICON_ERRATUM_161010101 326bb42ca47SDing Tianhong bool "Workaround for Hisilicon Erratum 161010101" 327bb42ca47SDing Tianhong default y 328bb42ca47SDing Tianhong select ARM_ARCH_TIMER_OOL_WORKAROUND 329bb42ca47SDing Tianhong depends on ARM_ARCH_TIMER && ARM64 330bb42ca47SDing Tianhong help 331bb42ca47SDing Tianhong This option enables a workaround for Hisilicon Erratum 332bb42ca47SDing Tianhong 161010101. The workaround will be active if the hisilicon,erratum-161010101 333bb42ca47SDing Tianhong property is found in the timer node. 334bb42ca47SDing Tianhong 335fa8d815fSMarc Zyngierconfig ARM64_ERRATUM_858921 336fa8d815fSMarc Zyngier bool "Workaround for Cortex-A73 erratum 858921" 337fa8d815fSMarc Zyngier default y 338fa8d815fSMarc Zyngier select ARM_ARCH_TIMER_OOL_WORKAROUND 339fa8d815fSMarc Zyngier depends on ARM_ARCH_TIMER && ARM64 340fa8d815fSMarc Zyngier help 341fa8d815fSMarc Zyngier This option enables a workaround applicable to Cortex-A73 342fa8d815fSMarc Zyngier (all versions), whose counter may return incorrect values. 343fa8d815fSMarc Zyngier The workaround will be dynamically enabled when an affected 344fa8d815fSMarc Zyngier core is detected. 345fa8d815fSMarc Zyngier 346c950ca8cSSamuel Hollandconfig SUN50I_ERRATUM_UNKNOWN1 347c950ca8cSSamuel Holland bool "Workaround for Allwinner A64 erratum UNKNOWN1" 348c950ca8cSSamuel Holland default y 349c950ca8cSSamuel Holland depends on ARM_ARCH_TIMER && ARM64 && ARCH_SUNXI 350c950ca8cSSamuel Holland select ARM_ARCH_TIMER_OOL_WORKAROUND 351c950ca8cSSamuel Holland help 352c950ca8cSSamuel Holland This option enables a workaround for instability in the timer on 353c950ca8cSSamuel Holland the Allwinner A64 SoC. The workaround will only be active if the 354c950ca8cSSamuel Holland allwinner,erratum-unknown1 property is found in the timer node. 355c950ca8cSSamuel Holland 356c1b40e44SStuart Menefyconfig ARM_GLOBAL_TIMER 35767a87a43SDaniel Lezcano bool "Support for the ARM global timer" if COMPILE_TEST 358bb0eb050SDaniel Lezcano select TIMER_OF if OF 35967a87a43SDaniel Lezcano depends on ARM 360c1b40e44SStuart Menefy help 36106293463SRandy Dunlap This option enables support for the ARM global timer unit. 362c1b40e44SStuart Menefy 363171b45a4SAndrea Merelloconfig ARM_GT_INITIAL_PRESCALER_VAL 364171b45a4SAndrea Merello int "ARM global timer initial prescaler value" 36568e2215eSAndrea Merello default 2 if ARCH_ZYNQ 366171b45a4SAndrea Merello default 1 367171b45a4SAndrea Merello depends on ARM_GLOBAL_TIMER 368171b45a4SAndrea Merello help 369171b45a4SAndrea Merello When the ARM global timer initializes, its current rate is declared 370*6f6f3e31SRandy Dunlap to the kernel and maintained forever. Should its parent clock 371171b45a4SAndrea Merello change, the driver tries to fix the timer's internal prescaler. 372171b45a4SAndrea Merello On some machs (i.e. Zynq) the initial prescaler value thus poses 373171b45a4SAndrea Merello bounds about how much the parent clock is allowed to decrease or 374171b45a4SAndrea Merello increase wrt the initial clock value. 375171b45a4SAndrea Merello This affects CPU_FREQ max delta from the initial frequency. 376171b45a4SAndrea Merello 3770b7402dcSSudeep Hollaconfig ARM_TIMER_SP804 378dfc82faaSDavid Abdurachmanov bool "Support for Dual Timer SP804 module" if COMPILE_TEST 3792f4574ddSArnd Bergmann depends on GENERIC_SCHED_CLOCK && HAVE_CLK 3800b7402dcSSudeep Holla select CLKSRC_MMIO 381bb0eb050SDaniel Lezcano select TIMER_OF if OF 3820b7402dcSSudeep Holla 383c1b40e44SStuart Menefyconfig CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK 384c1b40e44SStuart Menefy bool 385c1b40e44SStuart Menefy depends on ARM_GLOBAL_TIMER 386c1b40e44SStuart Menefy default y 387c1b40e44SStuart Menefy help 38806293463SRandy Dunlap Use ARM global timer clock source as sched_clock. 389c1b40e44SStuart Menefy 3904958ebb3SMaxime Coquelinconfig ARMV7M_SYSTICK 391e2146d86SDaniel Lezcano bool "Support for the ARMv7M system time" if COMPILE_TEST 392bb0eb050SDaniel Lezcano select TIMER_OF if OF 3934958ebb3SMaxime Coquelin select CLKSRC_MMIO 3944958ebb3SMaxime Coquelin help 39506293463SRandy Dunlap This option enables support for the ARMv7M system timer unit. 3964958ebb3SMaxime Coquelin 397b052ff30SMaxime Ripardconfig ATMEL_PIT 3982f982703SAlexandre Belloni bool "Atmel PIT support" if COMPILE_TEST 3992f982703SAlexandre Belloni depends on HAS_IOMEM 400bb0eb050SDaniel Lezcano select TIMER_OF if OF 4012f982703SAlexandre Belloni help 4022f982703SAlexandre Belloni Support for the Periodic Interval Timer found on Atmel SoCs. 403b052ff30SMaxime Ripard 404b53cdd03SAlexandre Belloniconfig ATMEL_ST 405b988d3f0SDaniel Lezcano bool "Atmel ST timer support" if COMPILE_TEST 406bd2746f0SMasahiro Yamada depends on HAS_IOMEM 407bb0eb050SDaniel Lezcano select TIMER_OF 4087ab7ef74SAlexandre Belloni select MFD_SYSCON 409b988d3f0SDaniel Lezcano help 410b988d3f0SDaniel Lezcano Support for the Atmel ST timer. 411b53cdd03SAlexandre Belloni 4126275f494SAlexandre Belloniconfig ATMEL_TCB_CLKSRC 4136275f494SAlexandre Belloni bool "Atmel TC Block timer driver" if COMPILE_TEST 4141ce861ceSAlexandre Belloni depends on ARM && HAS_IOMEM 4156275f494SAlexandre Belloni select TIMER_OF if OF 4166275f494SAlexandre Belloni help 4176275f494SAlexandre Belloni Support for Timer Counter Blocks on Atmel SoCs. 4186275f494SAlexandre Belloni 4196938d75aSThomas Abrahamconfig CLKSRC_EXYNOS_MCT 42039366ef4SDaniel Lezcano bool "Exynos multi core timer driver" if COMPILE_TEST 421f1a4c1f3SChanwoo Choi depends on ARM || ARM64 4228602a80bSKrzysztof Kozlowski depends on ARCH_EXYNOS || COMPILE_TEST 4236938d75aSThomas Abraham help 4246938d75aSThomas Abraham Support for Multi Core Timer controller on Exynos SoCs. 425241a9871SArnd Bergmann 426f1189989STomasz Figaconfig CLKSRC_SAMSUNG_PWM 427de37b0b5SAlexandre Belloni bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST 428d7023e62SRichard Weinberger depends on HAS_IOMEM 4298602a80bSKrzysztof Kozlowski depends on ARCH_EXYNOS || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || COMPILE_TEST 430f1189989STomasz Figa help 431f1189989STomasz Figa This is a new clocksource driver for the PWM timer found in 432f1189989STomasz Figa Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver 433f1189989STomasz Figa for all devicetree enabled platforms. This driver will be 434f1189989STomasz Figa needed only on systems that do not have the Exynos MCT available. 435c1967249SJingchang Lu 4362529c3a3SXiubo Liconfig FSL_FTM_TIMER 437ef49336bSDaniel Lezcano bool "Freescale FlexTimer Module driver" if COMPILE_TEST 438d7023e62SRichard Weinberger depends on HAS_IOMEM 43903724ac3SDaniel Lezcano select CLKSRC_MMIO 4402529c3a3SXiubo Li help 4412529c3a3SXiubo Li Support for Freescale FlexTimer Module (FTM) timer. 4422529c3a3SXiubo Li 443c1967249SJingchang Luconfig VF_PIT_TIMER 444c1967249SJingchang Lu bool 4452be6d9bfSArnd Bergmann select CLKSRC_MMIO 446c1967249SJingchang Lu help 44706293463SRandy Dunlap Support for Periodic Interrupt Timer on Freescale Vybrid Family SoCs. 448fd3f1270SMagnus Damm 44989355274SNeil Armstrongconfig OXNAS_RPS_TIMER 45089355274SNeil Armstrong bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST 451bb0eb050SDaniel Lezcano select TIMER_OF 45289355274SNeil Armstrong select CLKSRC_MMIO 45389355274SNeil Armstrong help 45489355274SNeil Armstrong This enables support for the Oxford Semiconductor OXNAS RPS timers. 45589355274SNeil Armstrong 456fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_CMT 457fd3f1270SMagnus Damm bool 458fd3f1270SMagnus Damm 459ecb3530dSMatthias Bruggerconfig MTK_TIMER 460fbca9eabSDaniel Lezcano bool "Mediatek timer driver" if COMPILE_TEST 4612f8a26c1SArnd Bergmann depends on HAS_IOMEM 462bb0eb050SDaniel Lezcano select TIMER_OF 463ecb3530dSMatthias Brugger select CLKSRC_MMIO 464fbca9eabSDaniel Lezcano help 465fbca9eabSDaniel Lezcano Support for Mediatek timer driver. 466ecb3530dSMatthias Brugger 467067bc914SBaolin Wangconfig SPRD_TIMER 4688a1ece26SChunyan Zhang bool "Spreadtrum timer driver" if EXPERT 469067bc914SBaolin Wang depends on HAS_IOMEM 4708a1ece26SChunyan Zhang depends on (ARCH_SPRD || COMPILE_TEST) 4718a1ece26SChunyan Zhang default ARCH_SPRD 472067bc914SBaolin Wang select TIMER_OF 473067bc914SBaolin Wang help 474067bc914SBaolin Wang Enables support for the Spreadtrum timer driver. 475067bc914SBaolin Wang 476fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_MTU2 477fd3f1270SMagnus Damm bool 478fd3f1270SMagnus Damm 479fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_TMU 480fd3f1270SMagnus Damm bool 481fd3f1270SMagnus Damm 482fd3f1270SMagnus Dammconfig SYS_SUPPORTS_EM_STI 483fd3f1270SMagnus Damm bool 484fd3f1270SMagnus Damm 4859995f4f1SRich Felkerconfig CLKSRC_JCORE_PIT 4869995f4f1SRich Felker bool "J-Core PIT timer driver" if COMPILE_TEST 4879995f4f1SRich Felker depends on OF 4889995f4f1SRich Felker depends on HAS_IOMEM 4899995f4f1SRich Felker select CLKSRC_MMIO 4909995f4f1SRich Felker help 4919995f4f1SRich Felker This enables build of clocksource and clockevent driver for 4929995f4f1SRich Felker the integrated PIT in the J-Core synthesizable, open source SoC. 4939995f4f1SRich Felker 494fd3f1270SMagnus Dammconfig SH_TIMER_CMT 495fd3f1270SMagnus Damm bool "Renesas CMT timer driver" if COMPILE_TEST 49611bc26feSRichard Weinberger depends on HAS_IOMEM 497fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_CMT 498fd3f1270SMagnus Damm help 499fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 500fd3f1270SMagnus Damm the Compare Match Timer (CMT) hardware available in 16/32/48-bit 501fd3f1270SMagnus Damm variants on a wide range of Mobile and Automotive SoCs from Renesas. 502fd3f1270SMagnus Damm 503fd3f1270SMagnus Dammconfig SH_TIMER_MTU2 504fd3f1270SMagnus Damm bool "Renesas MTU2 timer driver" if COMPILE_TEST 50511bc26feSRichard Weinberger depends on HAS_IOMEM 506fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_MTU2 507fd3f1270SMagnus Damm help 508fd3f1270SMagnus Damm This enables build of a clockevent driver for the Multi-Function 5097e139187SKuninori Morimoto Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. 51006293463SRandy Dunlap This hardware comes with 16-bit timer registers. 511fd3f1270SMagnus Damm 512fb6002a8SChris Brandtconfig RENESAS_OSTM 513a2807f65SBiju Das bool "Renesas OSTM timer driver" 514a2807f65SBiju Das depends on ARCH_RENESAS || COMPILE_TEST 515fb6002a8SChris Brandt select CLKSRC_MMIO 51622731423SGeert Uytterhoeven select TIMER_OF 517fb6002a8SChris Brandt help 518fb6002a8SChris Brandt Enables the support for the Renesas OSTM. 519fb6002a8SChris Brandt 520fd3f1270SMagnus Dammconfig SH_TIMER_TMU 521fd3f1270SMagnus Damm bool "Renesas TMU timer driver" if COMPILE_TEST 52211bc26feSRichard Weinberger depends on HAS_IOMEM 523fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_TMU 524fd3f1270SMagnus Damm help 525fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 526fd3f1270SMagnus Damm the 32-bit Timer Unit (TMU) hardware available on a wide range 527fd3f1270SMagnus Damm SoCs from Renesas. 528fd3f1270SMagnus Damm 529fd3f1270SMagnus Dammconfig EM_TIMER_STI 530fd3f1270SMagnus Damm bool "Renesas STI timer driver" if COMPILE_TEST 5312f8a26c1SArnd Bergmann depends on HAS_IOMEM 532fd3f1270SMagnus Damm default SYS_SUPPORTS_EM_STI 533fd3f1270SMagnus Damm help 534fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 535fd3f1270SMagnus Damm the 48-bit System Timer (STI) hardware available on a SoCs 536fd3f1270SMagnus Damm such as EMEV2 from former NEC Electronics. 537dfc25e45SLinus Torvalds 5383f8e8ceeSKumar Galaconfig CLKSRC_QCOM 5393dc0e9f6SDaniel Lezcano bool "Qualcomm MSM timer" if COMPILE_TEST 5403dc0e9f6SDaniel Lezcano depends on ARM 541bb0eb050SDaniel Lezcano select TIMER_OF 5423dc0e9f6SDaniel Lezcano help 5433dc0e9f6SDaniel Lezcano This enables the clocksource and the per CPU clockevent driver for the 5443dc0e9f6SDaniel Lezcano Qualcomm SoCs. 545220e2a8dSPawel Moll 546220e2a8dSPawel Mollconfig CLKSRC_VERSATILE 5475cc87a4dSDaniel Lezcano bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST 54877f6c0b8SArnd Bergmann depends on GENERIC_SCHED_CLOCK 549bb0eb050SDaniel Lezcano select TIMER_OF 550bfed0edeSRob Herring default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM 551220e2a8dSPawel Moll help 552220e2a8dSPawel Moll This option enables clock source based on free running 553220e2a8dSPawel Moll counter available in the "System Registers" block of 554bfed0edeSRob Herring ARM Versatile and Versatile Express reference platforms. 55558394271SJean Delvare 556fa5635a2SAndrew Brestickerconfig CLKSRC_MIPS_GIC 557fa5635a2SAndrew Bresticker bool 558fa5635a2SAndrew Bresticker depends on MIPS_GIC 5597d7de1a6SSerge Semin select CLOCKSOURCE_WATCHDOG 560bb0eb050SDaniel Lezcano select TIMER_OF 561fa5635a2SAndrew Bresticker 562e074ff86SDmitry Eremin-Solenikovconfig CLKSRC_PXA 5635ae996cbSDaniel Lezcano bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST 564d7023e62SRichard Weinberger depends on HAS_IOMEM 5655ae996cbSDaniel Lezcano select CLKSRC_MMIO 566e074ff86SDmitry Eremin-Solenikov help 567e074ff86SDmitry Eremin-Solenikov This enables OST0 support available on PXA and SA-11x0 568e074ff86SDmitry Eremin-Solenikov platforms. 569618b902dSYoshinori Sato 57097a23bebSDaniel Lezcanoconfig H8300_TMR8 57146e7c3c6SDaniel Lezcano bool "Clockevent timer for the H8300 platform" if COMPILE_TEST 5722f8a26c1SArnd Bergmann depends on HAS_IOMEM 57346e7c3c6SDaniel Lezcano help 57446e7c3c6SDaniel Lezcano This enables the 8 bits timer for the H8300 platform. 57597a23bebSDaniel Lezcano 576618b902dSYoshinori Satoconfig H8300_TMR16 57746e7c3c6SDaniel Lezcano bool "Clockevent timer for the H83069 platform" if COMPILE_TEST 5782f8a26c1SArnd Bergmann depends on HAS_IOMEM 57946e7c3c6SDaniel Lezcano help 58046e7c3c6SDaniel Lezcano This enables the 16 bits timer for the H8300 platform with the 58106293463SRandy Dunlap H83069 CPU. 582618b902dSYoshinori Sato 583618b902dSYoshinori Satoconfig H8300_TPU 58446e7c3c6SDaniel Lezcano bool "Clocksource for the H8300 platform" if COMPILE_TEST 5852f8a26c1SArnd Bergmann depends on HAS_IOMEM 58646e7c3c6SDaniel Lezcano help 58746e7c3c6SDaniel Lezcano This enables the clocksource for the H8300 platform with the 58806293463SRandy Dunlap H8S2678 CPU. 589618b902dSYoshinori Sato 590bea5af41SShawn Guoconfig CLKSRC_IMX_GPT 591bea5af41SShawn Guo bool "Clocksource using i.MX GPT" if COMPILE_TEST 5922f4574ddSArnd Bergmann depends on (ARM || ARM64) && HAVE_CLK 593bea5af41SShawn Guo select CLKSRC_MMIO 594bea5af41SShawn Guo 595059ab7b8SDong Aishengconfig CLKSRC_IMX_TPM 596059ab7b8SDong Aisheng bool "Clocksource using i.MX TPM" if COMPILE_TEST 5972f4574ddSArnd Bergmann depends on (ARM || ARM64) && HAVE_CLK 598059ab7b8SDong Aisheng select CLKSRC_MMIO 599a6d0812aSAnson Huang select TIMER_OF 600059ab7b8SDong Aisheng help 601059ab7b8SDong Aisheng Enable this option to use IMX Timer/PWM Module (TPM) timer as 602059ab7b8SDong Aisheng clocksource. 603059ab7b8SDong Aisheng 6047117a44bSBai Pingconfig TIMER_IMX_SYS_CTR 6057117a44bSBai Ping bool "i.MX system counter timer" if COMPILE_TEST 6067117a44bSBai Ping select TIMER_OF 6077117a44bSBai Ping help 6087117a44bSBai Ping Enable this option to use i.MX system counter timer as a 6097117a44bSBai Ping clockevent. 6107117a44bSBai Ping 61170bef01cSLee Jonesconfig CLKSRC_ST_LPC 612baacaf83SDaniel Lezcano bool "Low power clocksource found in the LPC" if COMPILE_TEST 613bb0eb050SDaniel Lezcano select TIMER_OF if OF 614863ee050SRichard Weinberger depends on HAS_IOMEM 6152be6d9bfSArnd Bergmann select CLKSRC_MMIO 61670bef01cSLee Jones help 61770bef01cSLee Jones Enable this option to use the Low Power controller timer 61870bef01cSLee Jones as clocksource. 61970bef01cSLee Jones 62062b01943SPalmer Dabbeltconfig RISCV_TIMER 6212bc3fc87SAnup Patel bool "Timer for the RISC-V platform" if COMPILE_TEST 622ab310544SKefeng Wang depends on GENERIC_SCHED_CLOCK && RISCV && RISCV_SBI 62362b01943SPalmer Dabbelt select TIMER_PROBE 62462b01943SPalmer Dabbelt select TIMER_OF 62562b01943SPalmer Dabbelt help 62662b01943SPalmer Dabbelt This enables the per-hart timer built into all RISC-V systems, which 62762b01943SPalmer Dabbelt is accessed via both the SBI and the rdcycle instruction. This is 62862b01943SPalmer Dabbelt required for all RISC-V systems. 62962b01943SPalmer Dabbelt 6302ac6795fSAnup Patelconfig CLINT_TIMER 6312ac6795fSAnup Patel bool "CLINT Timer for the RISC-V platform" if COMPILE_TEST 6322ac6795fSAnup Patel depends on GENERIC_SCHED_CLOCK && RISCV 6332ac6795fSAnup Patel select TIMER_PROBE 6342ac6795fSAnup Patel select TIMER_OF 6352ac6795fSAnup Patel help 6362ac6795fSAnup Patel This option enables the CLINT timer for RISC-V systems. The CLINT 6372ac6795fSAnup Patel driver is usually used for NoMMU RISC-V systems. 6382ac6795fSAnup Patel 639a7ad38b0SGuo Renconfig CSKY_MP_TIMER 640a7ad38b0SGuo Ren bool "SMP Timer for the C-SKY platform" if COMPILE_TEST 641a7ad38b0SGuo Ren depends on CSKY 642a7ad38b0SGuo Ren select TIMER_OF 643a7ad38b0SGuo Ren help 644a7ad38b0SGuo Ren Say yes here to enable C-SKY SMP timer driver used for C-SKY SMP 645a7ad38b0SGuo Ren system. 64606293463SRandy Dunlap csky,mptimer is not only used in SMP system, it also could be used in 64706293463SRandy Dunlap single core system. It's not a mmio reg and it uses mtcr/mfcr instruction. 648a7ad38b0SGuo Ren 64933745c3cSGuo Renconfig GX6605S_TIMER 65033745c3cSGuo Ren bool "Gx6605s SOC system timer driver" if COMPILE_TEST 65133745c3cSGuo Ren depends on CSKY 65233745c3cSGuo Ren select CLKSRC_MMIO 65333745c3cSGuo Ren select TIMER_OF 65433745c3cSGuo Ren help 65533745c3cSGuo Ren This option enables support for gx6605s SOC's timer. 65633745c3cSGuo Ren 657b58f28f3SSugaya Taichiconfig MILBEAUT_TIMER 658b58f28f3SSugaya Taichi bool "Milbeaut timer driver" if COMPILE_TEST 659b58f28f3SSugaya Taichi depends on OF 660b58f28f3SSugaya Taichi depends on ARM 661b58f28f3SSugaya Taichi select TIMER_OF 662b58f28f3SSugaya Taichi select CLKSRC_MMIO 663b58f28f3SSugaya Taichi help 664b58f28f3SSugaya Taichi Enables the support for Milbeaut timer driver. 665b58f28f3SSugaya Taichi 6665fc1f93fSRomain Perierconfig MSC313E_TIMER 6675fc1f93fSRomain Perier bool "MSC313E timer driver" if COMPILE_TEST 6685fc1f93fSRomain Perier select TIMER_OF 6695fc1f93fSRomain Perier select CLKSRC_MMIO 6705fc1f93fSRomain Perier help 6715fc1f93fSRomain Perier Enables support for the MStar MSC313E timer driver. 6725fc1f93fSRomain Perier This provides access to multiple interrupt generating 6735fc1f93fSRomain Perier programmable 32-bit free running incrementing counters. 6745fc1f93fSRomain Perier 67534e93683SPaul Cercueilconfig INGENIC_TIMER 67634e93683SPaul Cercueil bool "Clocksource/timer using the TCU in Ingenic JZ SoCs" 67734e93683SPaul Cercueil default MACH_INGENIC 67834e93683SPaul Cercueil depends on MIPS || COMPILE_TEST 67934e93683SPaul Cercueil depends on COMMON_CLK 68034e93683SPaul Cercueil select MFD_SYSCON 68134e93683SPaul Cercueil select TIMER_OF 68234e93683SPaul Cercueil select IRQ_DOMAIN 68334e93683SPaul Cercueil help 68434e93683SPaul Cercueil Support for the timer/counter unit of the Ingenic JZ SoCs. 68534e93683SPaul Cercueil 6865ecafc12S周琰杰 (Zhou Yanjie)config INGENIC_SYSOST 6875ecafc12S周琰杰 (Zhou Yanjie) bool "Clocksource/timer using the SYSOST in Ingenic X SoCs" 6885ecafc12S周琰杰 (Zhou Yanjie) depends on MIPS || COMPILE_TEST 6895ecafc12S周琰杰 (Zhou Yanjie) depends on COMMON_CLK 6905ecafc12S周琰杰 (Zhou Yanjie) select MFD_SYSCON 6915ecafc12S周琰杰 (Zhou Yanjie) select TIMER_OF 6925ecafc12S周琰杰 (Zhou Yanjie) select IRQ_DOMAIN 6935ecafc12S周琰杰 (Zhou Yanjie) help 6945ecafc12S周琰杰 (Zhou Yanjie) Support for the SYSOST of the Ingenic X Series SoCs. 6955ecafc12S周琰杰 (Zhou Yanjie) 696ca7b72b5SMaarten ter Huurneconfig INGENIC_OST 6975ecafc12S周琰杰 (Zhou Yanjie) bool "Clocksource using the OST in Ingenic JZ SoCs" 698ca7b72b5SMaarten ter Huurne depends on MIPS || COMPILE_TEST 699ca7b72b5SMaarten ter Huurne depends on COMMON_CLK 700ca7b72b5SMaarten ter Huurne select MFD_SYSCON 701ca7b72b5SMaarten ter Huurne help 702ca7b72b5SMaarten ter Huurne Support for the Operating System Timer of the Ingenic JZ SoCs. 703ca7b72b5SMaarten ter Huurne 704625022a5SClaudiu Bezneaconfig MICROCHIP_PIT64B 705625022a5SClaudiu Beznea bool "Microchip PIT64B support" 706625022a5SClaudiu Beznea depends on OF || COMPILE_TEST 70725259f7aSMichael Ellerman select TIMER_OF 708625022a5SClaudiu Beznea help 709625022a5SClaudiu Beznea This option enables Microchip PIT64B timer for Atmel 710625022a5SClaudiu Beznea based system. It supports the oneshot, the periodic 711625022a5SClaudiu Beznea modes and high resolution. It is used as a clocksource 712625022a5SClaudiu Beznea and a clockevent. 713625022a5SClaudiu Beznea 71458394271SJean Delvareendmenu 715