158394271SJean Delvaremenu "Clock Source drivers" 23da6d49eSArnd Bergmann depends on !ARCH_USES_GETTIMEOFFSET 358394271SJean Delvare 4bb0eb050SDaniel Lezcanoconfig TIMER_OF 5ae278a93SStephen Warren bool 6dc11bae7SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 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 2515f304b6SRalf Baechleconfig CLKBLD_I8253 26e6220bdcSThomas Gleixner def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK 2715f304b6SRalf Baechle 28442c8176SRussell Kingconfig CLKSRC_MMIO 29442c8176SRussell King bool 3006c3df49SJamie Iles 312ea879a7SDaniel Lezcanoconfig BCM2835_TIMER 322ea879a7SDaniel Lezcano bool "BCM2835 timer driver" if COMPILE_TEST 332ea879a7SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 342ea879a7SDaniel Lezcano select CLKSRC_MMIO 352ea879a7SDaniel Lezcano help 362ea879a7SDaniel Lezcano Enables the support for the BCM2835 timer driver. 372ea879a7SDaniel Lezcano 381cad71e3SDaniel Lezcanoconfig BCM_KONA_TIMER 391cad71e3SDaniel Lezcano bool "BCM mobile timer driver" if COMPILE_TEST 401cad71e3SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 411cad71e3SDaniel Lezcano select CLKSRC_MMIO 421cad71e3SDaniel Lezcano help 431cad71e3SDaniel Lezcano Enables the support for the BCM Kona mobile timer driver. 441cad71e3SDaniel Lezcano 459b8bb773SBaruch Siachconfig DIGICOLOR_TIMER 46e6c1db13SDaniel Lezcano bool "Digicolor timer driver" if COMPILE_TEST 470901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 482be6d9bfSArnd Bergmann select CLKSRC_MMIO 49d7023e62SRichard Weinberger depends on HAS_IOMEM 50e6c1db13SDaniel Lezcano help 51e6c1db13SDaniel Lezcano Enables the support for the digicolor timer driver. 529b8bb773SBaruch Siach 5306c3df49SJamie Ilesconfig DW_APB_TIMER 545b097f6bSDaniel Lezcano bool "DW APB timer driver" if COMPILE_TEST 550901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 565b097f6bSDaniel Lezcano help 575b097f6bSDaniel Lezcano Enables the support for the dw_apb timer. 58489bcceaSMattias Wallin 59cfda5901SDinh Nguyenconfig DW_APB_TIMER_OF 60cfda5901SDinh Nguyen bool 611b4eca0fSHeiko Stuebner select DW_APB_TIMER 62bb0eb050SDaniel Lezcano select TIMER_OF 63cfda5901SDinh Nguyen 64f5bf0ee4SLinus Walleijconfig FTTMR010_TIMER 65f5bf0ee4SLinus Walleij bool "Faraday Technology timer driver" if COMPILE_TEST 664750535bSLinus Walleij depends on GENERIC_CLOCKEVENTS 674750535bSLinus Walleij depends on HAS_IOMEM 684750535bSLinus Walleij select CLKSRC_MMIO 69bb0eb050SDaniel Lezcano select TIMER_OF 704750535bSLinus Walleij select MFD_SYSCON 714750535bSLinus Walleij help 72f5bf0ee4SLinus Walleij Enables support for the Faraday Technology timer block 73f5bf0ee4SLinus Walleij FTTMR010. 744750535bSLinus Walleij 75468b8c4cSDaniel Lezcanoconfig ROCKCHIP_TIMER 7640ada2aaSDaniel Lezcano bool "Rockchip timer driver" if COMPILE_TEST 7740ada2aaSDaniel Lezcano depends on ARM || ARM64 78bb0eb050SDaniel Lezcano select TIMER_OF 795e0a39d0SAlexander Kochetkov select CLKSRC_MMIO 8040ada2aaSDaniel Lezcano help 8140ada2aaSDaniel Lezcano Enables the support for the rockchip timer driver. 82468b8c4cSDaniel Lezcano 836fe9cbd1SGregory CLEMENTconfig ARMADA_370_XP_TIMER 849519e80cSDaniel Lezcano bool "Armada 370 and XP timer driver" if COMPILE_TEST 859519e80cSDaniel Lezcano depends on ARM 86bb0eb050SDaniel Lezcano select TIMER_OF 872be6d9bfSArnd Bergmann select CLKSRC_MMIO 889519e80cSDaniel Lezcano help 899519e80cSDaniel Lezcano Enables the support for the Armada 370 and XP timer driver. 906fe9cbd1SGregory CLEMENT 91e4a6b378SCarlo Caioneconfig MESON6_TIMER 920b7a7bb7SDaniel Lezcano bool "Meson6 timer driver" if COMPILE_TEST 930901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 947b6b0a45SBeniamino Galvani select CLKSRC_MMIO 950b7a7bb7SDaniel Lezcano help 960b7a7bb7SDaniel Lezcano Enables the support for the Meson6 timer driver. 97e4a6b378SCarlo Caione 980c1dcfd5SSebastian Hesselbarthconfig ORION_TIMER 99c9165549SDaniel Lezcano bool "Orion timer driver" if COMPILE_TEST 100c9165549SDaniel Lezcano depends on ARM 101bb0eb050SDaniel Lezcano select TIMER_OF 1020c1dcfd5SSebastian Hesselbarth select CLKSRC_MMIO 103c9165549SDaniel Lezcano help 104c9165549SDaniel Lezcano Enables the support for the Orion timer driver 1050c1dcfd5SSebastian Hesselbarth 106119fd635SMaxime Ripardconfig SUN4I_TIMER 107b4fcd48bSDaniel Lezcano bool "Sun4i timer driver" if COMPILE_TEST 1080901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 109d7023e62SRichard Weinberger depends on HAS_IOMEM 11071c568c0SMaxime Ripard select CLKSRC_MMIO 111b4fcd48bSDaniel Lezcano help 112b4fcd48bSDaniel Lezcano Enables support for the Sun4i timer. 113b2ac5d75SMaxime Ripard 11467905540SMaxime Ripardconfig SUN5I_HSTIMER 115f0c5afb7SDaniel Lezcano bool "Sun5i timer driver" if COMPILE_TEST 11667905540SMaxime Ripard select CLKSRC_MMIO 117f0c5afb7SDaniel Lezcano depends on COMMON_CLK 118f0c5afb7SDaniel Lezcano help 119f0c5afb7SDaniel Lezcano Enables support the Sun5i timer. 12067905540SMaxime Ripard 121910978e7SThierry Redingconfig TEGRA_TIMER 122adce4bc8SDaniel Lezcano bool "Tegra timer driver" if COMPILE_TEST 1232be6d9bfSArnd Bergmann select CLKSRC_MMIO 124adce4bc8SDaniel Lezcano depends on ARM 125adce4bc8SDaniel Lezcano help 126adce4bc8SDaniel Lezcano Enables support for the Tegra driver. 127910978e7SThierry Reding 128ff7ec345STony Priskconfig VT8500_TIMER 129b4bdf7efSDaniel Lezcano bool "VT8500 timer driver" if COMPILE_TEST 1300901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 131d7023e62SRichard Weinberger depends on HAS_IOMEM 132b4bdf7efSDaniel Lezcano help 133b4bdf7efSDaniel Lezcano Enables support for the VT8500 driver. 134ff7ec345STony Prisk 1354f0f234fSMichal Simekconfig CADENCE_TTC_TIMER 13657f49318SDaniel Lezcano bool "Cadence TTC timer driver" if COMPILE_TEST 13757f49318SDaniel Lezcano depends on COMMON_CLK 13857f49318SDaniel Lezcano help 13957f49318SDaniel Lezcano Enables support for the cadence ttc driver. 1404f0f234fSMichal Simek 141a8b1b9fcSDaniel Lezcanoconfig ASM9260_TIMER 142b9755841SDaniel Lezcano bool "ASM9260 timer driver" if COMPILE_TEST 1430901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 144a8b1b9fcSDaniel Lezcano select CLKSRC_MMIO 145bb0eb050SDaniel Lezcano select TIMER_OF 146b9755841SDaniel Lezcano help 147b9755841SDaniel Lezcano Enables support for the ASM9260 timer. 148a8b1b9fcSDaniel Lezcano 149694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU 15070329653SDaniel Lezcano bool "Nomakdik clocksource driver" if COMPILE_TEST 15170329653SDaniel Lezcano depends on ARM 152694e33a7SLinus Walleij select CLKSRC_MMIO 153694e33a7SLinus Walleij help 154694e33a7SLinus Walleij Support for Multi Timer Unit. MTU provides access 155694e33a7SLinus Walleij to multiple interrupt generating programmable 156694e33a7SLinus Walleij 32-bit free running decrementing counters. 157694e33a7SLinus Walleij 158694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU_SCHED_CLOCK 159694e33a7SLinus Walleij bool 160694e33a7SLinus Walleij depends on CLKSRC_NOMADIK_MTU 161694e33a7SLinus Walleij help 162694e33a7SLinus Walleij Use the Multi Timer Unit as the sched_clock. 163694e33a7SLinus Walleij 164489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU 1651becd6edSDaniel Lezcano bool "Clocksource PRCMU Timer" if COMPILE_TEST 1660901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 167d7023e62SRichard Weinberger depends on HAS_IOMEM 168489bcceaSMattias Wallin help 169489bcceaSMattias Wallin Use the always on PRCMU Timer as clocksource 170489bcceaSMattias Wallin 171ecf0efdcSDaniel Lezcanoconfig CLPS711X_TIMER 172ecf0efdcSDaniel Lezcano bool "Cirrus logic timer driver" if COMPILE_TEST 173ecf0efdcSDaniel Lezcano depends on GENERIC_CLOCKEVENTS 174ecf0efdcSDaniel Lezcano select CLKSRC_MMIO 175ecf0efdcSDaniel Lezcano help 176ecf0efdcSDaniel Lezcano Enables support for the Cirrus Logic PS711 timer. 177ecf0efdcSDaniel Lezcano 178b56d5d21SDaniel Lezcanoconfig ATLAS7_TIMER 179b56d5d21SDaniel Lezcano bool "Atlas7 timer driver" if COMPILE_TEST 180b56d5d21SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 181b56d5d21SDaniel Lezcano select CLKSRC_MMIO 182b56d5d21SDaniel Lezcano help 183b56d5d21SDaniel Lezcano Enables support for the Atlas7 timer. 184b56d5d21SDaniel Lezcano 185d81c50a0SDaniel Lezcanoconfig MXS_TIMER 186d81c50a0SDaniel Lezcano bool "Mxs timer driver" if COMPILE_TEST 187d81c50a0SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 188d81c50a0SDaniel Lezcano select CLKSRC_MMIO 189d81c50a0SDaniel Lezcano select STMP_DEVICE 190d81c50a0SDaniel Lezcano help 191d81c50a0SDaniel Lezcano Enables support for the Mxs timer. 192d81c50a0SDaniel Lezcano 193f3550d49SDaniel Lezcanoconfig PRIMA2_TIMER 194f3550d49SDaniel Lezcano bool "Prima2 timer driver" if COMPILE_TEST 195f3550d49SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 196f3550d49SDaniel Lezcano select CLKSRC_MMIO 197f3550d49SDaniel Lezcano help 198f3550d49SDaniel Lezcano Enables support for the Prima2 timer. 199f3550d49SDaniel Lezcano 20085f98db4SDaniel Lezcanoconfig U300_TIMER 20185f98db4SDaniel Lezcano bool "U300 timer driver" if COMPILE_TEST 20285f98db4SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 20385f98db4SDaniel Lezcano depends on ARM 20485f98db4SDaniel Lezcano select CLKSRC_MMIO 20585f98db4SDaniel Lezcano help 20685f98db4SDaniel Lezcano Enables support for the U300 timer. 20785f98db4SDaniel Lezcano 208d683b9dcSDaniel Lezcanoconfig NSPIRE_TIMER 209d683b9dcSDaniel Lezcano bool "NSpire timer driver" if COMPILE_TEST 210d683b9dcSDaniel Lezcano depends on GENERIC_CLOCKEVENTS 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 GENERIC_CLOCKEVENTS 218c12547a0SDaniel Lezcano depends on ARM || ARM64 219c12547a0SDaniel Lezcano select CLKSRC_MMIO 220c12547a0SDaniel Lezcano help 221c12547a0SDaniel Lezcano Enables support for the Keystone timer. 222c12547a0SDaniel Lezcano 223568c0342SDaniel Lezcanoconfig INTEGRATOR_AP_TIMER 224568c0342SDaniel Lezcano bool "Integrator-ap timer driver" if COMPILE_TEST 225568c0342SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 226568c0342SDaniel Lezcano select CLKSRC_MMIO 227568c0342SDaniel Lezcano help 228568c0342SDaniel Lezcano Enables support for the Integrator-ap timer. 229568c0342SDaniel Lezcano 230489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU_SCHED_CLOCK 231489bcceaSMattias Wallin bool "Clocksource PRCMU Timer sched_clock" 232694e33a7SLinus Walleij depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK) 233489bcceaSMattias Wallin default y 234489bcceaSMattias Wallin help 235489bcceaSMattias Wallin Use the always on PRCMU Timer as sched_clock 236985c0679SMarc Zyngier 2379c9b7818SUwe Kleine-Königconfig CLKSRC_EFM32 2389c9b7818SUwe Kleine-König bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 2399c9b7818SUwe Kleine-König depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 24009ca2757SAxel Lin select CLKSRC_MMIO 2419c9b7818SUwe Kleine-König default ARCH_EFM32 2429c9b7818SUwe Kleine-König help 2439c9b7818SUwe Kleine-König Support to use the timers of EFM32 SoCs as clock source and clock 2449c9b7818SUwe Kleine-König event device. 2459c9b7818SUwe Kleine-König 246050dd322SJoachim Eastwoodconfig CLKSRC_LPC32XX 247ddcf48c7SDaniel Lezcano bool "Clocksource for LPC32XX" if COMPILE_TEST 248863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 2491b18fd20SEzequiel Garcia depends on ARM 250050dd322SJoachim Eastwood select CLKSRC_MMIO 251bb0eb050SDaniel Lezcano select TIMER_OF 252ddcf48c7SDaniel Lezcano help 253ddcf48c7SDaniel Lezcano Support for the LPC32XX clocksource. 254050dd322SJoachim Eastwood 25584583983SEzequiel Garciaconfig CLKSRC_PISTACHIO 256dfdb1652SDaniel Lezcano bool "Clocksource for Pistachio SoC" if COMPILE_TEST 257863ee050SRichard Weinberger depends on HAS_IOMEM 258bb0eb050SDaniel Lezcano select TIMER_OF 259dfdb1652SDaniel Lezcano help 260dfdb1652SDaniel Lezcano Enables the clocksource for the Pistachio SoC. 26184583983SEzequiel Garcia 262fe851f56SFelipe Balbiconfig CLKSRC_TI_32K 263fe851f56SFelipe Balbi bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST 264dfedaf10SFelipe Balbi depends on GENERIC_SCHED_CLOCK 265bb0eb050SDaniel Lezcano select TIMER_OF if OF 266fe851f56SFelipe Balbi help 267fe851f56SFelipe Balbi This option enables support for Texas Instruments 32.768 Hz clocksource 268fe851f56SFelipe Balbi available on many OMAP-like platforms. 269fe851f56SFelipe Balbi 270a5322457SNoam Camusconfig CLKSRC_NPS 271a5322457SNoam Camus bool "NPS400 clocksource driver" if COMPILE_TEST 272a5322457SNoam Camus depends on !PHYS_ADDR_T_64BIT 273a5322457SNoam Camus select CLKSRC_MMIO 274bb0eb050SDaniel Lezcano select TIMER_OF if OF 275a5322457SNoam Camus help 276a5322457SNoam Camus NPS400 clocksource support. 277a5322457SNoam Camus Got 64 bit counter with update rate up to 1000MHz. 278a5322457SNoam Camus This counter is accessed via couple of 32 bit memory mapped registers. 279a5322457SNoam Camus 280e37e4593SMaxime Coquelinconfig CLKSRC_STM32 2811cb6c215SPaul Gortmaker bool "Clocksource for STM32 SoCs" if !ARCH_STM32 2821cb6c215SPaul Gortmaker depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST) 283e37e4593SMaxime Coquelin select CLKSRC_MMIO 284e37e4593SMaxime Coquelin 2850302637fSVladimir Murzinconfig CLKSRC_MPS2 2860302637fSVladimir Murzin bool "Clocksource for MPS2 SoCs" if COMPILE_TEST 2870302637fSVladimir Murzin depends on GENERIC_SCHED_CLOCK 2880302637fSVladimir Murzin select CLKSRC_MMIO 289bb0eb050SDaniel Lezcano select TIMER_OF 2900302637fSVladimir Murzin 291c4c9a040SVineet Guptaconfig ARC_TIMERS 292c4c9a040SVineet Gupta bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST 293c4c9a040SVineet Gupta depends on GENERIC_CLOCKEVENTS 294bb0eb050SDaniel Lezcano select TIMER_OF 295c4c9a040SVineet Gupta help 296c4c9a040SVineet Gupta These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores 297c4c9a040SVineet Gupta (ARC700 as well as ARC HS38). 298c4c9a040SVineet Gupta TIMER0 serves as clockevent while TIMER1 provides clocksource 299c4c9a040SVineet Gupta 300c4c9a040SVineet Guptaconfig ARC_TIMERS_64BIT 301c4c9a040SVineet Gupta bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST 302c4c9a040SVineet Gupta depends on GENERIC_CLOCKEVENTS 303c4c9a040SVineet Gupta depends on ARC_TIMERS 304bb0eb050SDaniel Lezcano select TIMER_OF 305c4c9a040SVineet Gupta help 306c4c9a040SVineet Gupta This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP) 307c4c9a040SVineet Gupta RTC is implemented inside the core, while GFRC sits outside the core in 308c4c9a040SVineet Gupta ARConnect IP block. Driver automatically picks one of them for clocksource 309c4c9a040SVineet Gupta as appropriate. 310c4c9a040SVineet Gupta 3118a4da6e3SMark Rutlandconfig ARM_ARCH_TIMER 3128a4da6e3SMark Rutland bool 313bb0eb050SDaniel Lezcano select TIMER_OF if OF 314fa1bffabSDaniel Lezcano select TIMER_ACPI if ACPI 315a2c5d4edSJames Hogan 316037f6377SWill Deaconconfig ARM_ARCH_TIMER_EVTSTREAM 31746fd5c6bSWill Deacon bool "Enable ARM architected timer event stream generation by default" 318037f6377SWill Deacon default y if ARM_ARCH_TIMER 31977f7ce9aSStephen Boyd depends on ARM_ARCH_TIMER 320037f6377SWill Deacon help 32146fd5c6bSWill Deacon This option enables support by default for event stream generation 32246fd5c6bSWill Deacon based on the ARM architected timer. It is used for waking up CPUs 32346fd5c6bSWill Deacon executing the wfe instruction at a frequency represented as a 32446fd5c6bSWill Deacon power-of-2 divisor of the clock rate. The behaviour can also be 32546fd5c6bSWill Deacon overridden on the command line using the 32646fd5c6bSWill Deacon clocksource.arm_arch_timer.evtstream parameter. 327037f6377SWill Deacon The main use of the event stream is wfe-based timeouts of userspace 328037f6377SWill Deacon locking implementations. It might also be useful for imposing timeout 329037f6377SWill Deacon on wfe to safeguard against any programming errors in case an expected 330037f6377SWill Deacon event is not generated. 331037f6377SWill Deacon This must be disabled for hardware validation purposes to detect any 332037f6377SWill Deacon hardware anomalies of missing events. 333037f6377SWill Deacon 33416d10ef2SDing Tianhongconfig ARM_ARCH_TIMER_OOL_WORKAROUND 33516d10ef2SDing Tianhong bool 33616d10ef2SDing Tianhong 337f6dc1576SScott Woodconfig FSL_ERRATUM_A008585 338f6dc1576SScott Wood bool "Workaround for Freescale/NXP Erratum A-008585" 339f6dc1576SScott Wood default y 340f6dc1576SScott Wood depends on ARM_ARCH_TIMER && ARM64 34116d10ef2SDing Tianhong select ARM_ARCH_TIMER_OOL_WORKAROUND 342f6dc1576SScott Wood help 343f6dc1576SScott Wood This option enables a workaround for Freescale/NXP Erratum 344f6dc1576SScott Wood A-008585 ("ARM generic timer may contain an erroneous 345f6dc1576SScott Wood value"). The workaround will only be active if the 346f6dc1576SScott Wood fsl,erratum-a008585 property is found in the timer node. 347f6dc1576SScott Wood 348bb42ca47SDing Tianhongconfig HISILICON_ERRATUM_161010101 349bb42ca47SDing Tianhong bool "Workaround for Hisilicon Erratum 161010101" 350bb42ca47SDing Tianhong default y 351bb42ca47SDing Tianhong select ARM_ARCH_TIMER_OOL_WORKAROUND 352bb42ca47SDing Tianhong depends on ARM_ARCH_TIMER && ARM64 353bb42ca47SDing Tianhong help 354bb42ca47SDing Tianhong This option enables a workaround for Hisilicon Erratum 355bb42ca47SDing Tianhong 161010101. The workaround will be active if the hisilicon,erratum-161010101 356bb42ca47SDing Tianhong property is found in the timer node. 357bb42ca47SDing Tianhong 358fa8d815fSMarc Zyngierconfig ARM64_ERRATUM_858921 359fa8d815fSMarc Zyngier bool "Workaround for Cortex-A73 erratum 858921" 360fa8d815fSMarc Zyngier default y 361fa8d815fSMarc Zyngier select ARM_ARCH_TIMER_OOL_WORKAROUND 362fa8d815fSMarc Zyngier depends on ARM_ARCH_TIMER && ARM64 363fa8d815fSMarc Zyngier help 364fa8d815fSMarc Zyngier This option enables a workaround applicable to Cortex-A73 365fa8d815fSMarc Zyngier (all versions), whose counter may return incorrect values. 366fa8d815fSMarc Zyngier The workaround will be dynamically enabled when an affected 367fa8d815fSMarc Zyngier core is detected. 368fa8d815fSMarc Zyngier 369c1b40e44SStuart Menefyconfig ARM_GLOBAL_TIMER 37067a87a43SDaniel Lezcano bool "Support for the ARM global timer" if COMPILE_TEST 371bb0eb050SDaniel Lezcano select TIMER_OF if OF 37267a87a43SDaniel Lezcano depends on ARM 373c1b40e44SStuart Menefy help 374c1b40e44SStuart Menefy This options enables support for the ARM global timer unit 375c1b40e44SStuart Menefy 3760b7402dcSSudeep Hollaconfig ARM_TIMER_SP804 3770b7402dcSSudeep Holla bool "Support for Dual Timer SP804 module" 378002af195SGuenter Roeck depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP 3790b7402dcSSudeep Holla select CLKSRC_MMIO 380bb0eb050SDaniel Lezcano select TIMER_OF if OF 3810b7402dcSSudeep Holla 382c1b40e44SStuart Menefyconfig CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK 383c1b40e44SStuart Menefy bool 384c1b40e44SStuart Menefy depends on ARM_GLOBAL_TIMER 385c1b40e44SStuart Menefy default y 386c1b40e44SStuart Menefy help 387c1b40e44SStuart Menefy Use ARM global timer clock source as sched_clock 388c1b40e44SStuart Menefy 3894958ebb3SMaxime Coquelinconfig ARMV7M_SYSTICK 390e2146d86SDaniel Lezcano bool "Support for the ARMv7M system time" if COMPILE_TEST 391bb0eb050SDaniel Lezcano select TIMER_OF if OF 3924958ebb3SMaxime Coquelin select CLKSRC_MMIO 3934958ebb3SMaxime Coquelin help 3944958ebb3SMaxime Coquelin This options enables support for the ARMv7M system timer unit 3954958ebb3SMaxime Coquelin 396b052ff30SMaxime Ripardconfig ATMEL_PIT 397bb0eb050SDaniel Lezcano select TIMER_OF if OF 398b052ff30SMaxime Ripard def_bool SOC_AT91SAM9 || SOC_SAMA5 399b052ff30SMaxime Ripard 400b53cdd03SAlexandre Belloniconfig ATMEL_ST 401b988d3f0SDaniel Lezcano bool "Atmel ST timer support" if COMPILE_TEST 402b988d3f0SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 403bb0eb050SDaniel Lezcano select TIMER_OF 4047ab7ef74SAlexandre Belloni select MFD_SYSCON 405b988d3f0SDaniel Lezcano help 406b988d3f0SDaniel Lezcano Support for the Atmel ST timer. 407b53cdd03SAlexandre Belloni 408a2c5d4edSJames Hoganconfig CLKSRC_METAG_GENERIC 409a2c5d4edSJames Hogan def_bool y if METAG 410a2c5d4edSJames Hogan help 411a2c5d4edSJames Hogan This option enables support for the Meta per-thread timers. 4126938d75aSThomas Abraham 4136938d75aSThomas Abrahamconfig CLKSRC_EXYNOS_MCT 41439366ef4SDaniel Lezcano bool "Exynos multi core timer driver" if COMPILE_TEST 415f1a4c1f3SChanwoo Choi depends on ARM || ARM64 4166938d75aSThomas Abraham help 4176938d75aSThomas Abraham Support for Multi Core Timer controller on Exynos SoCs. 418241a9871SArnd Bergmann 419f1189989STomasz Figaconfig CLKSRC_SAMSUNG_PWM 420de37b0b5SAlexandre Belloni bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST 4210901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 422d7023e62SRichard Weinberger depends on HAS_IOMEM 423f1189989STomasz Figa help 424f1189989STomasz Figa This is a new clocksource driver for the PWM timer found in 425f1189989STomasz Figa Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver 426f1189989STomasz Figa for all devicetree enabled platforms. This driver will be 427f1189989STomasz Figa needed only on systems that do not have the Exynos MCT available. 428c1967249SJingchang Lu 4292529c3a3SXiubo Liconfig FSL_FTM_TIMER 430ef49336bSDaniel Lezcano bool "Freescale FlexTimer Module driver" if COMPILE_TEST 4310901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 432d7023e62SRichard Weinberger depends on HAS_IOMEM 43303724ac3SDaniel Lezcano select CLKSRC_MMIO 4342529c3a3SXiubo Li help 4352529c3a3SXiubo Li Support for Freescale FlexTimer Module (FTM) timer. 4362529c3a3SXiubo Li 437c1967249SJingchang Luconfig VF_PIT_TIMER 438c1967249SJingchang Lu bool 4392be6d9bfSArnd Bergmann select CLKSRC_MMIO 440c1967249SJingchang Lu help 441c1967249SJingchang Lu Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. 442fd3f1270SMagnus Damm 44389355274SNeil Armstrongconfig OXNAS_RPS_TIMER 44489355274SNeil Armstrong bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST 44589355274SNeil Armstrong depends on GENERIC_CLOCKEVENTS 446bb0eb050SDaniel Lezcano select TIMER_OF 44789355274SNeil Armstrong select CLKSRC_MMIO 44889355274SNeil Armstrong help 44989355274SNeil Armstrong This enables support for the Oxford Semiconductor OXNAS RPS timers. 45089355274SNeil Armstrong 451fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_CMT 452fd3f1270SMagnus Damm bool 453fd3f1270SMagnus Damm 454ecb3530dSMatthias Bruggerconfig MTK_TIMER 455fbca9eabSDaniel Lezcano bool "Mediatek timer driver" if COMPILE_TEST 456863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 457bb0eb050SDaniel Lezcano select TIMER_OF 458ecb3530dSMatthias Brugger select CLKSRC_MMIO 459fbca9eabSDaniel Lezcano help 460fbca9eabSDaniel Lezcano Support for Mediatek timer driver. 461ecb3530dSMatthias Brugger 462fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_MTU2 463fd3f1270SMagnus Damm bool 464fd3f1270SMagnus Damm 465fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_TMU 466fd3f1270SMagnus Damm bool 467fd3f1270SMagnus Damm 468fd3f1270SMagnus Dammconfig SYS_SUPPORTS_EM_STI 469fd3f1270SMagnus Damm bool 470fd3f1270SMagnus Damm 4719995f4f1SRich Felkerconfig CLKSRC_JCORE_PIT 4729995f4f1SRich Felker bool "J-Core PIT timer driver" if COMPILE_TEST 4739995f4f1SRich Felker depends on OF 4749995f4f1SRich Felker depends on GENERIC_CLOCKEVENTS 4759995f4f1SRich Felker depends on HAS_IOMEM 4769995f4f1SRich Felker select CLKSRC_MMIO 4779995f4f1SRich Felker help 4789995f4f1SRich Felker This enables build of clocksource and clockevent driver for 4799995f4f1SRich Felker the integrated PIT in the J-Core synthesizable, open source SoC. 4809995f4f1SRich Felker 481fd3f1270SMagnus Dammconfig SH_TIMER_CMT 482fd3f1270SMagnus Damm bool "Renesas CMT timer driver" if COMPILE_TEST 48387291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 48411bc26feSRichard Weinberger depends on HAS_IOMEM 485fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_CMT 486fd3f1270SMagnus Damm help 487fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 488fd3f1270SMagnus Damm the Compare Match Timer (CMT) hardware available in 16/32/48-bit 489fd3f1270SMagnus Damm variants on a wide range of Mobile and Automotive SoCs from Renesas. 490fd3f1270SMagnus Damm 491fd3f1270SMagnus Dammconfig SH_TIMER_MTU2 492fd3f1270SMagnus Damm bool "Renesas MTU2 timer driver" if COMPILE_TEST 49387291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 49411bc26feSRichard Weinberger depends on HAS_IOMEM 495fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_MTU2 496fd3f1270SMagnus Damm help 497fd3f1270SMagnus Damm This enables build of a clockevent driver for the Multi-Function 4987e139187SKuninori Morimoto Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. 499fd3f1270SMagnus Damm This hardware comes with 16 bit-timer registers. 500fd3f1270SMagnus Damm 501fb6002a8SChris Brandtconfig RENESAS_OSTM 502fb6002a8SChris Brandt bool "Renesas OSTM timer driver" if COMPILE_TEST 503fb6002a8SChris Brandt depends on GENERIC_CLOCKEVENTS 504fb6002a8SChris Brandt select CLKSRC_MMIO 505fb6002a8SChris Brandt help 506fb6002a8SChris Brandt Enables the support for the Renesas OSTM. 507fb6002a8SChris Brandt 508fd3f1270SMagnus Dammconfig SH_TIMER_TMU 509fd3f1270SMagnus Damm bool "Renesas TMU timer driver" if COMPILE_TEST 51087291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 51111bc26feSRichard Weinberger depends on HAS_IOMEM 512fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_TMU 513fd3f1270SMagnus Damm help 514fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 515fd3f1270SMagnus Damm the 32-bit Timer Unit (TMU) hardware available on a wide range 516fd3f1270SMagnus Damm SoCs from Renesas. 517fd3f1270SMagnus Damm 518fd3f1270SMagnus Dammconfig EM_TIMER_STI 519fd3f1270SMagnus Damm bool "Renesas STI timer driver" if COMPILE_TEST 52040c96312SChen Gang depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 521fd3f1270SMagnus Damm default SYS_SUPPORTS_EM_STI 522fd3f1270SMagnus Damm help 523fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 524fd3f1270SMagnus Damm the 48-bit System Timer (STI) hardware available on a SoCs 525fd3f1270SMagnus Damm such as EMEV2 from former NEC Electronics. 526dfc25e45SLinus Torvalds 5273f8e8ceeSKumar Galaconfig CLKSRC_QCOM 5283dc0e9f6SDaniel Lezcano bool "Qualcomm MSM timer" if COMPILE_TEST 5293dc0e9f6SDaniel Lezcano depends on ARM 530bb0eb050SDaniel Lezcano select TIMER_OF 5313dc0e9f6SDaniel Lezcano help 5323dc0e9f6SDaniel Lezcano This enables the clocksource and the per CPU clockevent driver for the 5333dc0e9f6SDaniel Lezcano Qualcomm SoCs. 534220e2a8dSPawel Moll 535220e2a8dSPawel Mollconfig CLKSRC_VERSATILE 5365cc87a4dSDaniel Lezcano bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST 5375cc87a4dSDaniel Lezcano depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET 538bb0eb050SDaniel Lezcano select TIMER_OF 539220e2a8dSPawel Moll default y if MFD_VEXPRESS_SYSREG 540220e2a8dSPawel Moll help 541220e2a8dSPawel Moll This option enables clock source based on free running 542220e2a8dSPawel Moll counter available in the "System Registers" block of 543220e2a8dSPawel Moll ARM Versatile, RealView and Versatile Express reference 544220e2a8dSPawel Moll platforms. 54558394271SJean Delvare 546fa5635a2SAndrew Brestickerconfig CLKSRC_MIPS_GIC 547fa5635a2SAndrew Bresticker bool 548fa5635a2SAndrew Bresticker depends on MIPS_GIC 549bb0eb050SDaniel Lezcano select TIMER_OF 550fa5635a2SAndrew Bresticker 551ccd63ce4SMarc Gonzalezconfig CLKSRC_TANGO_XTAL 5525a7351f0SDaniel Lezcano bool "Clocksource for Tango SoC" if COMPILE_TEST 5535a7351f0SDaniel Lezcano depends on ARM 554bb0eb050SDaniel Lezcano select TIMER_OF 5550881841fSDaniel Lezcano select CLKSRC_MMIO 5565a7351f0SDaniel Lezcano help 5575a7351f0SDaniel Lezcano This enables the clocksource for Tango SoC 558ccd63ce4SMarc Gonzalez 559e074ff86SDmitry Eremin-Solenikovconfig CLKSRC_PXA 5605ae996cbSDaniel Lezcano bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST 5615ae996cbSDaniel Lezcano depends on GENERIC_CLOCKEVENTS 562d7023e62SRichard Weinberger depends on HAS_IOMEM 5635ae996cbSDaniel Lezcano select CLKSRC_MMIO 564e074ff86SDmitry Eremin-Solenikov help 565e074ff86SDmitry Eremin-Solenikov This enables OST0 support available on PXA and SA-11x0 566e074ff86SDmitry Eremin-Solenikov platforms. 567618b902dSYoshinori Sato 56897a23bebSDaniel Lezcanoconfig H8300_TMR8 56946e7c3c6SDaniel Lezcano bool "Clockevent timer for the H8300 platform" if COMPILE_TEST 570863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 57146e7c3c6SDaniel Lezcano help 57246e7c3c6SDaniel Lezcano This enables the 8 bits timer for the H8300 platform. 57397a23bebSDaniel Lezcano 574618b902dSYoshinori Satoconfig H8300_TMR16 57546e7c3c6SDaniel Lezcano bool "Clockevent timer for the H83069 platform" if COMPILE_TEST 576863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 57746e7c3c6SDaniel Lezcano help 57846e7c3c6SDaniel Lezcano This enables the 16 bits timer for the H8300 platform with the 57946e7c3c6SDaniel Lezcano H83069 cpu. 580618b902dSYoshinori Sato 581618b902dSYoshinori Satoconfig H8300_TPU 58246e7c3c6SDaniel Lezcano bool "Clocksource for the H8300 platform" if COMPILE_TEST 583863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 58446e7c3c6SDaniel Lezcano help 58546e7c3c6SDaniel Lezcano This enables the clocksource for the H8300 platform with the 58646e7c3c6SDaniel Lezcano H8S2678 cpu. 587618b902dSYoshinori Sato 588bea5af41SShawn Guoconfig CLKSRC_IMX_GPT 589bea5af41SShawn Guo bool "Clocksource using i.MX GPT" if COMPILE_TEST 590bea5af41SShawn Guo depends on ARM && CLKDEV_LOOKUP 591bea5af41SShawn Guo select CLKSRC_MMIO 592bea5af41SShawn Guo 59370bef01cSLee Jonesconfig CLKSRC_ST_LPC 594baacaf83SDaniel Lezcano bool "Low power clocksource found in the LPC" if COMPILE_TEST 595bb0eb050SDaniel Lezcano select TIMER_OF if OF 596863ee050SRichard Weinberger depends on HAS_IOMEM 5972be6d9bfSArnd Bergmann select CLKSRC_MMIO 59870bef01cSLee Jones help 59970bef01cSLee Jones Enable this option to use the Low Power controller timer 60070bef01cSLee Jones as clocksource. 60170bef01cSLee Jones 60258394271SJean Delvareendmenu 603