158394271SJean Delvaremenu "Clock Source drivers" 23da6d49eSArnd Bergmann depends on !ARCH_USES_GETTIMEOFFSET 358394271SJean Delvare 4bb0eb050SDaniel Lezcanoconfig TIMER_OF 5ae278a93SStephen Warren bool 6bb0eb050SDaniel Lezcano select TIMER_PROBE 7aad83b15SMarc Zyngier 8*fa1bffabSDaniel Lezcanoconfig TIMER_ACPI 9aad83b15SMarc Zyngier bool 10bb0eb050SDaniel Lezcano select TIMER_PROBE 11aad83b15SMarc Zyngier 12bb0eb050SDaniel Lezcanoconfig TIMER_PROBE 13aad83b15SMarc Zyngier bool 14ae278a93SStephen Warren 1589c0b8e2SRussell Kingconfig CLKSRC_I8253 1689c0b8e2SRussell King bool 17442c8176SRussell King 18e6220bdcSThomas Gleixnerconfig CLKEVT_I8253 19e6220bdcSThomas Gleixner bool 20e6220bdcSThomas Gleixner 2115f304b6SRalf Baechleconfig I8253_LOCK 2215f304b6SRalf Baechle bool 2315f304b6SRalf Baechle 2415f304b6SRalf Baechleconfig CLKBLD_I8253 25e6220bdcSThomas Gleixner def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK 2615f304b6SRalf Baechle 27442c8176SRussell Kingconfig CLKSRC_MMIO 28442c8176SRussell King bool 2906c3df49SJamie Iles 302ea879a7SDaniel Lezcanoconfig BCM2835_TIMER 312ea879a7SDaniel Lezcano bool "BCM2835 timer driver" if COMPILE_TEST 322ea879a7SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 332ea879a7SDaniel Lezcano select CLKSRC_MMIO 342ea879a7SDaniel Lezcano help 352ea879a7SDaniel Lezcano Enables the support for the BCM2835 timer driver. 362ea879a7SDaniel Lezcano 371cad71e3SDaniel Lezcanoconfig BCM_KONA_TIMER 381cad71e3SDaniel Lezcano bool "BCM mobile timer driver" if COMPILE_TEST 391cad71e3SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 401cad71e3SDaniel Lezcano select CLKSRC_MMIO 411cad71e3SDaniel Lezcano help 421cad71e3SDaniel Lezcano Enables the support for the BCM Kona mobile timer driver. 431cad71e3SDaniel Lezcano 449b8bb773SBaruch Siachconfig DIGICOLOR_TIMER 45e6c1db13SDaniel Lezcano bool "Digicolor timer driver" if COMPILE_TEST 460901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 472be6d9bfSArnd Bergmann select CLKSRC_MMIO 48d7023e62SRichard Weinberger depends on HAS_IOMEM 49e6c1db13SDaniel Lezcano help 50e6c1db13SDaniel Lezcano Enables the support for the digicolor timer driver. 519b8bb773SBaruch Siach 5206c3df49SJamie Ilesconfig DW_APB_TIMER 535b097f6bSDaniel Lezcano bool "DW APB timer driver" if COMPILE_TEST 540901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 555b097f6bSDaniel Lezcano help 565b097f6bSDaniel Lezcano Enables the support for the dw_apb timer. 57489bcceaSMattias Wallin 58cfda5901SDinh Nguyenconfig DW_APB_TIMER_OF 59cfda5901SDinh Nguyen bool 601b4eca0fSHeiko Stuebner select DW_APB_TIMER 61bb0eb050SDaniel Lezcano select TIMER_OF 62cfda5901SDinh Nguyen 63f5bf0ee4SLinus Walleijconfig FTTMR010_TIMER 64f5bf0ee4SLinus Walleij bool "Faraday Technology timer driver" if COMPILE_TEST 654750535bSLinus Walleij depends on GENERIC_CLOCKEVENTS 664750535bSLinus Walleij depends on HAS_IOMEM 674750535bSLinus Walleij select CLKSRC_MMIO 68bb0eb050SDaniel Lezcano select TIMER_OF 694750535bSLinus Walleij select MFD_SYSCON 704750535bSLinus Walleij help 71f5bf0ee4SLinus Walleij Enables support for the Faraday Technology timer block 72f5bf0ee4SLinus Walleij FTTMR010. 734750535bSLinus Walleij 74468b8c4cSDaniel Lezcanoconfig ROCKCHIP_TIMER 7540ada2aaSDaniel Lezcano bool "Rockchip timer driver" if COMPILE_TEST 7640ada2aaSDaniel Lezcano depends on ARM || ARM64 77bb0eb050SDaniel Lezcano select TIMER_OF 785e0a39d0SAlexander Kochetkov select CLKSRC_MMIO 7940ada2aaSDaniel Lezcano help 8040ada2aaSDaniel Lezcano Enables the support for the rockchip timer driver. 81468b8c4cSDaniel Lezcano 826fe9cbd1SGregory CLEMENTconfig ARMADA_370_XP_TIMER 839519e80cSDaniel Lezcano bool "Armada 370 and XP timer driver" if COMPILE_TEST 849519e80cSDaniel Lezcano depends on ARM 85bb0eb050SDaniel Lezcano select TIMER_OF 862be6d9bfSArnd Bergmann select CLKSRC_MMIO 879519e80cSDaniel Lezcano help 889519e80cSDaniel Lezcano Enables the support for the Armada 370 and XP timer driver. 896fe9cbd1SGregory CLEMENT 90e4a6b378SCarlo Caioneconfig MESON6_TIMER 910b7a7bb7SDaniel Lezcano bool "Meson6 timer driver" if COMPILE_TEST 920901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 937b6b0a45SBeniamino Galvani select CLKSRC_MMIO 940b7a7bb7SDaniel Lezcano help 950b7a7bb7SDaniel Lezcano Enables the support for the Meson6 timer driver. 96e4a6b378SCarlo Caione 970c1dcfd5SSebastian Hesselbarthconfig ORION_TIMER 98c9165549SDaniel Lezcano bool "Orion timer driver" if COMPILE_TEST 99c9165549SDaniel Lezcano depends on ARM 100bb0eb050SDaniel Lezcano select TIMER_OF 1010c1dcfd5SSebastian Hesselbarth select CLKSRC_MMIO 102c9165549SDaniel Lezcano help 103c9165549SDaniel Lezcano Enables the support for the Orion timer driver 1040c1dcfd5SSebastian Hesselbarth 105119fd635SMaxime Ripardconfig SUN4I_TIMER 106b4fcd48bSDaniel Lezcano bool "Sun4i timer driver" if COMPILE_TEST 1070901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 108d7023e62SRichard Weinberger depends on HAS_IOMEM 10971c568c0SMaxime Ripard select CLKSRC_MMIO 110b4fcd48bSDaniel Lezcano help 111b4fcd48bSDaniel Lezcano Enables support for the Sun4i timer. 112b2ac5d75SMaxime Ripard 11367905540SMaxime Ripardconfig SUN5I_HSTIMER 114f0c5afb7SDaniel Lezcano bool "Sun5i timer driver" if COMPILE_TEST 11567905540SMaxime Ripard select CLKSRC_MMIO 116f0c5afb7SDaniel Lezcano depends on COMMON_CLK 117f0c5afb7SDaniel Lezcano help 118f0c5afb7SDaniel Lezcano Enables support the Sun5i timer. 11967905540SMaxime Ripard 120910978e7SThierry Redingconfig TEGRA_TIMER 121adce4bc8SDaniel Lezcano bool "Tegra timer driver" if COMPILE_TEST 1222be6d9bfSArnd Bergmann select CLKSRC_MMIO 123adce4bc8SDaniel Lezcano depends on ARM 124adce4bc8SDaniel Lezcano help 125adce4bc8SDaniel Lezcano Enables support for the Tegra driver. 126910978e7SThierry Reding 127ff7ec345STony Priskconfig VT8500_TIMER 128b4bdf7efSDaniel Lezcano bool "VT8500 timer driver" if COMPILE_TEST 1290901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 130d7023e62SRichard Weinberger depends on HAS_IOMEM 131b4bdf7efSDaniel Lezcano help 132b4bdf7efSDaniel Lezcano Enables support for the VT8500 driver. 133ff7ec345STony Prisk 1344f0f234fSMichal Simekconfig CADENCE_TTC_TIMER 13557f49318SDaniel Lezcano bool "Cadence TTC timer driver" if COMPILE_TEST 13657f49318SDaniel Lezcano depends on COMMON_CLK 13757f49318SDaniel Lezcano help 13857f49318SDaniel Lezcano Enables support for the cadence ttc driver. 1394f0f234fSMichal Simek 140a8b1b9fcSDaniel Lezcanoconfig ASM9260_TIMER 141b9755841SDaniel Lezcano bool "ASM9260 timer driver" if COMPILE_TEST 1420901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 143a8b1b9fcSDaniel Lezcano select CLKSRC_MMIO 144bb0eb050SDaniel Lezcano select TIMER_OF 145b9755841SDaniel Lezcano help 146b9755841SDaniel Lezcano Enables support for the ASM9260 timer. 147a8b1b9fcSDaniel Lezcano 148694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU 14970329653SDaniel Lezcano bool "Nomakdik clocksource driver" if COMPILE_TEST 15070329653SDaniel Lezcano depends on ARM 151694e33a7SLinus Walleij select CLKSRC_MMIO 152694e33a7SLinus Walleij help 153694e33a7SLinus Walleij Support for Multi Timer Unit. MTU provides access 154694e33a7SLinus Walleij to multiple interrupt generating programmable 155694e33a7SLinus Walleij 32-bit free running decrementing counters. 156694e33a7SLinus Walleij 157694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU_SCHED_CLOCK 158694e33a7SLinus Walleij bool 159694e33a7SLinus Walleij depends on CLKSRC_NOMADIK_MTU 160694e33a7SLinus Walleij help 161694e33a7SLinus Walleij Use the Multi Timer Unit as the sched_clock. 162694e33a7SLinus Walleij 163489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU 1641becd6edSDaniel Lezcano bool "Clocksource PRCMU Timer" if COMPILE_TEST 1650901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 166d7023e62SRichard Weinberger depends on HAS_IOMEM 167489bcceaSMattias Wallin help 168489bcceaSMattias Wallin Use the always on PRCMU Timer as clocksource 169489bcceaSMattias Wallin 170ecf0efdcSDaniel Lezcanoconfig CLPS711X_TIMER 171ecf0efdcSDaniel Lezcano bool "Cirrus logic timer driver" if COMPILE_TEST 172ecf0efdcSDaniel Lezcano depends on GENERIC_CLOCKEVENTS 173ecf0efdcSDaniel Lezcano select CLKSRC_MMIO 174ecf0efdcSDaniel Lezcano help 175ecf0efdcSDaniel Lezcano Enables support for the Cirrus Logic PS711 timer. 176ecf0efdcSDaniel Lezcano 177b56d5d21SDaniel Lezcanoconfig ATLAS7_TIMER 178b56d5d21SDaniel Lezcano bool "Atlas7 timer driver" if COMPILE_TEST 179b56d5d21SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 180b56d5d21SDaniel Lezcano select CLKSRC_MMIO 181b56d5d21SDaniel Lezcano help 182b56d5d21SDaniel Lezcano Enables support for the Atlas7 timer. 183b56d5d21SDaniel Lezcano 184d81c50a0SDaniel Lezcanoconfig MXS_TIMER 185d81c50a0SDaniel Lezcano bool "Mxs timer driver" if COMPILE_TEST 186d81c50a0SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 187d81c50a0SDaniel Lezcano select CLKSRC_MMIO 188d81c50a0SDaniel Lezcano select STMP_DEVICE 189d81c50a0SDaniel Lezcano help 190d81c50a0SDaniel Lezcano Enables support for the Mxs timer. 191d81c50a0SDaniel Lezcano 192f3550d49SDaniel Lezcanoconfig PRIMA2_TIMER 193f3550d49SDaniel Lezcano bool "Prima2 timer driver" if COMPILE_TEST 194f3550d49SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 195f3550d49SDaniel Lezcano select CLKSRC_MMIO 196f3550d49SDaniel Lezcano help 197f3550d49SDaniel Lezcano Enables support for the Prima2 timer. 198f3550d49SDaniel Lezcano 19985f98db4SDaniel Lezcanoconfig U300_TIMER 20085f98db4SDaniel Lezcano bool "U300 timer driver" if COMPILE_TEST 20185f98db4SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 20285f98db4SDaniel Lezcano depends on ARM 20385f98db4SDaniel Lezcano select CLKSRC_MMIO 20485f98db4SDaniel Lezcano help 20585f98db4SDaniel Lezcano Enables support for the U300 timer. 20685f98db4SDaniel Lezcano 207d683b9dcSDaniel Lezcanoconfig NSPIRE_TIMER 208d683b9dcSDaniel Lezcano bool "NSpire timer driver" if COMPILE_TEST 209d683b9dcSDaniel Lezcano depends on GENERIC_CLOCKEVENTS 210d683b9dcSDaniel Lezcano select CLKSRC_MMIO 211d683b9dcSDaniel Lezcano help 212d683b9dcSDaniel Lezcano Enables support for the Nspire timer. 213d683b9dcSDaniel Lezcano 214c12547a0SDaniel Lezcanoconfig KEYSTONE_TIMER 215c12547a0SDaniel Lezcano bool "Keystone timer driver" if COMPILE_TEST 216c12547a0SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 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 223568c0342SDaniel Lezcano bool "Integrator-ap timer driver" if COMPILE_TEST 224568c0342SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 225568c0342SDaniel Lezcano select CLKSRC_MMIO 226568c0342SDaniel Lezcano help 227568c0342SDaniel Lezcano Enables support for the Integrator-ap timer. 228568c0342SDaniel Lezcano 229489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU_SCHED_CLOCK 230489bcceaSMattias Wallin bool "Clocksource PRCMU Timer sched_clock" 231694e33a7SLinus Walleij depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK) 232489bcceaSMattias Wallin default y 233489bcceaSMattias Wallin help 234489bcceaSMattias Wallin Use the always on PRCMU Timer as sched_clock 235985c0679SMarc Zyngier 2369c9b7818SUwe Kleine-Königconfig CLKSRC_EFM32 2379c9b7818SUwe Kleine-König bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 2389c9b7818SUwe Kleine-König depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 23909ca2757SAxel Lin select CLKSRC_MMIO 2409c9b7818SUwe Kleine-König default ARCH_EFM32 2419c9b7818SUwe Kleine-König help 2429c9b7818SUwe Kleine-König Support to use the timers of EFM32 SoCs as clock source and clock 2439c9b7818SUwe Kleine-König event device. 2449c9b7818SUwe Kleine-König 245050dd322SJoachim Eastwoodconfig CLKSRC_LPC32XX 246ddcf48c7SDaniel Lezcano bool "Clocksource for LPC32XX" if COMPILE_TEST 247863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 2481b18fd20SEzequiel Garcia depends on ARM 249050dd322SJoachim Eastwood select CLKSRC_MMIO 250bb0eb050SDaniel Lezcano select TIMER_OF 251ddcf48c7SDaniel Lezcano help 252ddcf48c7SDaniel Lezcano Support for the LPC32XX clocksource. 253050dd322SJoachim Eastwood 25484583983SEzequiel Garciaconfig CLKSRC_PISTACHIO 255dfdb1652SDaniel Lezcano bool "Clocksource for Pistachio SoC" if COMPILE_TEST 256863ee050SRichard Weinberger depends on HAS_IOMEM 257bb0eb050SDaniel Lezcano select TIMER_OF 258dfdb1652SDaniel Lezcano help 259dfdb1652SDaniel Lezcano Enables the clocksource for the Pistachio SoC. 26084583983SEzequiel Garcia 261fe851f56SFelipe Balbiconfig CLKSRC_TI_32K 262fe851f56SFelipe Balbi bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST 263dfedaf10SFelipe Balbi depends on GENERIC_SCHED_CLOCK 264bb0eb050SDaniel Lezcano select TIMER_OF if OF 265fe851f56SFelipe Balbi help 266fe851f56SFelipe Balbi This option enables support for Texas Instruments 32.768 Hz clocksource 267fe851f56SFelipe Balbi available on many OMAP-like platforms. 268fe851f56SFelipe Balbi 269a5322457SNoam Camusconfig CLKSRC_NPS 270a5322457SNoam Camus bool "NPS400 clocksource driver" if COMPILE_TEST 271a5322457SNoam Camus depends on !PHYS_ADDR_T_64BIT 272a5322457SNoam Camus select CLKSRC_MMIO 273bb0eb050SDaniel Lezcano select TIMER_OF if OF 274a5322457SNoam Camus help 275a5322457SNoam Camus NPS400 clocksource support. 276a5322457SNoam Camus Got 64 bit counter with update rate up to 1000MHz. 277a5322457SNoam Camus This counter is accessed via couple of 32 bit memory mapped registers. 278a5322457SNoam Camus 279e37e4593SMaxime Coquelinconfig CLKSRC_STM32 2801cb6c215SPaul Gortmaker bool "Clocksource for STM32 SoCs" if !ARCH_STM32 2811cb6c215SPaul Gortmaker depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST) 282e37e4593SMaxime Coquelin select CLKSRC_MMIO 283e37e4593SMaxime Coquelin 2840302637fSVladimir Murzinconfig CLKSRC_MPS2 2850302637fSVladimir Murzin bool "Clocksource for MPS2 SoCs" if COMPILE_TEST 2860302637fSVladimir Murzin depends on GENERIC_SCHED_CLOCK 2870302637fSVladimir Murzin select CLKSRC_MMIO 288bb0eb050SDaniel Lezcano select TIMER_OF 2890302637fSVladimir Murzin 290c4c9a040SVineet Guptaconfig ARC_TIMERS 291c4c9a040SVineet Gupta bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST 292c4c9a040SVineet Gupta depends on GENERIC_CLOCKEVENTS 293bb0eb050SDaniel Lezcano select TIMER_OF 294c4c9a040SVineet Gupta help 295c4c9a040SVineet Gupta These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores 296c4c9a040SVineet Gupta (ARC700 as well as ARC HS38). 297c4c9a040SVineet Gupta TIMER0 serves as clockevent while TIMER1 provides clocksource 298c4c9a040SVineet Gupta 299c4c9a040SVineet Guptaconfig ARC_TIMERS_64BIT 300c4c9a040SVineet Gupta bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST 301c4c9a040SVineet Gupta depends on GENERIC_CLOCKEVENTS 302c4c9a040SVineet Gupta depends on ARC_TIMERS 303bb0eb050SDaniel Lezcano select TIMER_OF 304c4c9a040SVineet Gupta help 305c4c9a040SVineet Gupta This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP) 306c4c9a040SVineet Gupta RTC is implemented inside the core, while GFRC sits outside the core in 307c4c9a040SVineet Gupta ARConnect IP block. Driver automatically picks one of them for clocksource 308c4c9a040SVineet Gupta as appropriate. 309c4c9a040SVineet Gupta 3108a4da6e3SMark Rutlandconfig ARM_ARCH_TIMER 3118a4da6e3SMark Rutland bool 312bb0eb050SDaniel Lezcano select TIMER_OF if OF 313*fa1bffabSDaniel Lezcano select TIMER_ACPI if ACPI 314a2c5d4edSJames Hogan 315037f6377SWill Deaconconfig ARM_ARCH_TIMER_EVTSTREAM 31646fd5c6bSWill Deacon bool "Enable ARM architected timer event stream generation by default" 317037f6377SWill Deacon default y if ARM_ARCH_TIMER 31877f7ce9aSStephen Boyd depends on ARM_ARCH_TIMER 319037f6377SWill Deacon help 32046fd5c6bSWill Deacon This option enables support by default for event stream generation 32146fd5c6bSWill Deacon based on the ARM architected timer. It is used for waking up CPUs 32246fd5c6bSWill Deacon executing the wfe instruction at a frequency represented as a 32346fd5c6bSWill Deacon power-of-2 divisor of the clock rate. The behaviour can also be 32446fd5c6bSWill Deacon overridden on the command line using the 32546fd5c6bSWill Deacon clocksource.arm_arch_timer.evtstream parameter. 326037f6377SWill Deacon The main use of the event stream is wfe-based timeouts of userspace 327037f6377SWill Deacon locking implementations. It might also be useful for imposing timeout 328037f6377SWill Deacon on wfe to safeguard against any programming errors in case an expected 329037f6377SWill Deacon event is not generated. 330037f6377SWill Deacon This must be disabled for hardware validation purposes to detect any 331037f6377SWill Deacon hardware anomalies of missing events. 332037f6377SWill Deacon 33316d10ef2SDing Tianhongconfig ARM_ARCH_TIMER_OOL_WORKAROUND 33416d10ef2SDing Tianhong bool 33516d10ef2SDing Tianhong 336f6dc1576SScott Woodconfig FSL_ERRATUM_A008585 337f6dc1576SScott Wood bool "Workaround for Freescale/NXP Erratum A-008585" 338f6dc1576SScott Wood default y 339f6dc1576SScott Wood depends on ARM_ARCH_TIMER && ARM64 34016d10ef2SDing Tianhong select ARM_ARCH_TIMER_OOL_WORKAROUND 341f6dc1576SScott Wood help 342f6dc1576SScott Wood This option enables a workaround for Freescale/NXP Erratum 343f6dc1576SScott Wood A-008585 ("ARM generic timer may contain an erroneous 344f6dc1576SScott Wood value"). The workaround will only be active if the 345f6dc1576SScott Wood fsl,erratum-a008585 property is found in the timer node. 346f6dc1576SScott Wood 347bb42ca47SDing Tianhongconfig HISILICON_ERRATUM_161010101 348bb42ca47SDing Tianhong bool "Workaround for Hisilicon Erratum 161010101" 349bb42ca47SDing Tianhong default y 350bb42ca47SDing Tianhong select ARM_ARCH_TIMER_OOL_WORKAROUND 351bb42ca47SDing Tianhong depends on ARM_ARCH_TIMER && ARM64 352bb42ca47SDing Tianhong help 353bb42ca47SDing Tianhong This option enables a workaround for Hisilicon Erratum 354bb42ca47SDing Tianhong 161010101. The workaround will be active if the hisilicon,erratum-161010101 355bb42ca47SDing Tianhong property is found in the timer node. 356bb42ca47SDing Tianhong 357fa8d815fSMarc Zyngierconfig ARM64_ERRATUM_858921 358fa8d815fSMarc Zyngier bool "Workaround for Cortex-A73 erratum 858921" 359fa8d815fSMarc Zyngier default y 360fa8d815fSMarc Zyngier select ARM_ARCH_TIMER_OOL_WORKAROUND 361fa8d815fSMarc Zyngier depends on ARM_ARCH_TIMER && ARM64 362fa8d815fSMarc Zyngier help 363fa8d815fSMarc Zyngier This option enables a workaround applicable to Cortex-A73 364fa8d815fSMarc Zyngier (all versions), whose counter may return incorrect values. 365fa8d815fSMarc Zyngier The workaround will be dynamically enabled when an affected 366fa8d815fSMarc Zyngier core is detected. 367fa8d815fSMarc Zyngier 368c1b40e44SStuart Menefyconfig ARM_GLOBAL_TIMER 36967a87a43SDaniel Lezcano bool "Support for the ARM global timer" if COMPILE_TEST 370bb0eb050SDaniel Lezcano select TIMER_OF if OF 37167a87a43SDaniel Lezcano depends on ARM 372c1b40e44SStuart Menefy help 373c1b40e44SStuart Menefy This options enables support for the ARM global timer unit 374c1b40e44SStuart Menefy 3750b7402dcSSudeep Hollaconfig ARM_TIMER_SP804 3760b7402dcSSudeep Holla bool "Support for Dual Timer SP804 module" 377002af195SGuenter Roeck depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP 3780b7402dcSSudeep Holla select CLKSRC_MMIO 379bb0eb050SDaniel Lezcano select TIMER_OF if OF 3800b7402dcSSudeep Holla 381c1b40e44SStuart Menefyconfig CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK 382c1b40e44SStuart Menefy bool 383c1b40e44SStuart Menefy depends on ARM_GLOBAL_TIMER 384c1b40e44SStuart Menefy default y 385c1b40e44SStuart Menefy help 386c1b40e44SStuart Menefy Use ARM global timer clock source as sched_clock 387c1b40e44SStuart Menefy 3884958ebb3SMaxime Coquelinconfig ARMV7M_SYSTICK 389e2146d86SDaniel Lezcano bool "Support for the ARMv7M system time" if COMPILE_TEST 390bb0eb050SDaniel Lezcano select TIMER_OF if OF 3914958ebb3SMaxime Coquelin select CLKSRC_MMIO 3924958ebb3SMaxime Coquelin help 3934958ebb3SMaxime Coquelin This options enables support for the ARMv7M system timer unit 3944958ebb3SMaxime Coquelin 395b052ff30SMaxime Ripardconfig ATMEL_PIT 396bb0eb050SDaniel Lezcano select TIMER_OF if OF 397b052ff30SMaxime Ripard def_bool SOC_AT91SAM9 || SOC_SAMA5 398b052ff30SMaxime Ripard 399b53cdd03SAlexandre Belloniconfig ATMEL_ST 400b988d3f0SDaniel Lezcano bool "Atmel ST timer support" if COMPILE_TEST 401b988d3f0SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 402bb0eb050SDaniel Lezcano select TIMER_OF 4037ab7ef74SAlexandre Belloni select MFD_SYSCON 404b988d3f0SDaniel Lezcano help 405b988d3f0SDaniel Lezcano Support for the Atmel ST timer. 406b53cdd03SAlexandre Belloni 407a2c5d4edSJames Hoganconfig CLKSRC_METAG_GENERIC 408a2c5d4edSJames Hogan def_bool y if METAG 409a2c5d4edSJames Hogan help 410a2c5d4edSJames Hogan This option enables support for the Meta per-thread timers. 4116938d75aSThomas Abraham 4126938d75aSThomas Abrahamconfig CLKSRC_EXYNOS_MCT 41339366ef4SDaniel Lezcano bool "Exynos multi core timer driver" if COMPILE_TEST 414f1a4c1f3SChanwoo Choi depends on ARM || ARM64 4156938d75aSThomas Abraham help 4166938d75aSThomas Abraham Support for Multi Core Timer controller on Exynos SoCs. 417241a9871SArnd Bergmann 418f1189989STomasz Figaconfig CLKSRC_SAMSUNG_PWM 419de37b0b5SAlexandre Belloni bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST 4200901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 421d7023e62SRichard Weinberger depends on HAS_IOMEM 422f1189989STomasz Figa help 423f1189989STomasz Figa This is a new clocksource driver for the PWM timer found in 424f1189989STomasz Figa Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver 425f1189989STomasz Figa for all devicetree enabled platforms. This driver will be 426f1189989STomasz Figa needed only on systems that do not have the Exynos MCT available. 427c1967249SJingchang Lu 4282529c3a3SXiubo Liconfig FSL_FTM_TIMER 429ef49336bSDaniel Lezcano bool "Freescale FlexTimer Module driver" if COMPILE_TEST 4300901f184SDaniel Lezcano depends on GENERIC_CLOCKEVENTS 431d7023e62SRichard Weinberger depends on HAS_IOMEM 43203724ac3SDaniel Lezcano select CLKSRC_MMIO 4332529c3a3SXiubo Li help 4342529c3a3SXiubo Li Support for Freescale FlexTimer Module (FTM) timer. 4352529c3a3SXiubo Li 436c1967249SJingchang Luconfig VF_PIT_TIMER 437c1967249SJingchang Lu bool 4382be6d9bfSArnd Bergmann select CLKSRC_MMIO 439c1967249SJingchang Lu help 440c1967249SJingchang Lu Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. 441fd3f1270SMagnus Damm 44289355274SNeil Armstrongconfig OXNAS_RPS_TIMER 44389355274SNeil Armstrong bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST 44489355274SNeil Armstrong depends on GENERIC_CLOCKEVENTS 445bb0eb050SDaniel Lezcano select TIMER_OF 44689355274SNeil Armstrong select CLKSRC_MMIO 44789355274SNeil Armstrong help 44889355274SNeil Armstrong This enables support for the Oxford Semiconductor OXNAS RPS timers. 44989355274SNeil Armstrong 450fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_CMT 451fd3f1270SMagnus Damm bool 452fd3f1270SMagnus Damm 453ecb3530dSMatthias Bruggerconfig MTK_TIMER 454fbca9eabSDaniel Lezcano bool "Mediatek timer driver" if COMPILE_TEST 455863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 456bb0eb050SDaniel Lezcano select TIMER_OF 457ecb3530dSMatthias Brugger select CLKSRC_MMIO 458fbca9eabSDaniel Lezcano help 459fbca9eabSDaniel Lezcano Support for Mediatek timer driver. 460ecb3530dSMatthias Brugger 461fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_MTU2 462fd3f1270SMagnus Damm bool 463fd3f1270SMagnus Damm 464fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_TMU 465fd3f1270SMagnus Damm bool 466fd3f1270SMagnus Damm 467fd3f1270SMagnus Dammconfig SYS_SUPPORTS_EM_STI 468fd3f1270SMagnus Damm bool 469fd3f1270SMagnus Damm 4709995f4f1SRich Felkerconfig CLKSRC_JCORE_PIT 4719995f4f1SRich Felker bool "J-Core PIT timer driver" if COMPILE_TEST 4729995f4f1SRich Felker depends on OF 4739995f4f1SRich Felker depends on GENERIC_CLOCKEVENTS 4749995f4f1SRich Felker depends on HAS_IOMEM 4759995f4f1SRich Felker select CLKSRC_MMIO 4769995f4f1SRich Felker help 4779995f4f1SRich Felker This enables build of clocksource and clockevent driver for 4789995f4f1SRich Felker the integrated PIT in the J-Core synthesizable, open source SoC. 4799995f4f1SRich Felker 480fd3f1270SMagnus Dammconfig SH_TIMER_CMT 481fd3f1270SMagnus Damm bool "Renesas CMT timer driver" if COMPILE_TEST 48287291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 48311bc26feSRichard Weinberger depends on HAS_IOMEM 484fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_CMT 485fd3f1270SMagnus Damm help 486fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 487fd3f1270SMagnus Damm the Compare Match Timer (CMT) hardware available in 16/32/48-bit 488fd3f1270SMagnus Damm variants on a wide range of Mobile and Automotive SoCs from Renesas. 489fd3f1270SMagnus Damm 490fd3f1270SMagnus Dammconfig SH_TIMER_MTU2 491fd3f1270SMagnus Damm bool "Renesas MTU2 timer driver" if COMPILE_TEST 49287291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 49311bc26feSRichard Weinberger depends on HAS_IOMEM 494fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_MTU2 495fd3f1270SMagnus Damm help 496fd3f1270SMagnus Damm This enables build of a clockevent driver for the Multi-Function 4977e139187SKuninori Morimoto Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. 498fd3f1270SMagnus Damm This hardware comes with 16 bit-timer registers. 499fd3f1270SMagnus Damm 500fb6002a8SChris Brandtconfig RENESAS_OSTM 501fb6002a8SChris Brandt bool "Renesas OSTM timer driver" if COMPILE_TEST 502fb6002a8SChris Brandt depends on GENERIC_CLOCKEVENTS 503fb6002a8SChris Brandt select CLKSRC_MMIO 504fb6002a8SChris Brandt help 505fb6002a8SChris Brandt Enables the support for the Renesas OSTM. 506fb6002a8SChris Brandt 507fd3f1270SMagnus Dammconfig SH_TIMER_TMU 508fd3f1270SMagnus Damm bool "Renesas TMU timer driver" if COMPILE_TEST 50987291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 51011bc26feSRichard Weinberger depends on HAS_IOMEM 511fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_TMU 512fd3f1270SMagnus Damm help 513fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 514fd3f1270SMagnus Damm the 32-bit Timer Unit (TMU) hardware available on a wide range 515fd3f1270SMagnus Damm SoCs from Renesas. 516fd3f1270SMagnus Damm 517fd3f1270SMagnus Dammconfig EM_TIMER_STI 518fd3f1270SMagnus Damm bool "Renesas STI timer driver" if COMPILE_TEST 51940c96312SChen Gang depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 520fd3f1270SMagnus Damm default SYS_SUPPORTS_EM_STI 521fd3f1270SMagnus Damm help 522fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 523fd3f1270SMagnus Damm the 48-bit System Timer (STI) hardware available on a SoCs 524fd3f1270SMagnus Damm such as EMEV2 from former NEC Electronics. 525dfc25e45SLinus Torvalds 5263f8e8ceeSKumar Galaconfig CLKSRC_QCOM 5273dc0e9f6SDaniel Lezcano bool "Qualcomm MSM timer" if COMPILE_TEST 5283dc0e9f6SDaniel Lezcano depends on ARM 529bb0eb050SDaniel Lezcano select TIMER_OF 5303dc0e9f6SDaniel Lezcano help 5313dc0e9f6SDaniel Lezcano This enables the clocksource and the per CPU clockevent driver for the 5323dc0e9f6SDaniel Lezcano Qualcomm SoCs. 533220e2a8dSPawel Moll 534220e2a8dSPawel Mollconfig CLKSRC_VERSATILE 5355cc87a4dSDaniel Lezcano bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST 5365cc87a4dSDaniel Lezcano depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET 537bb0eb050SDaniel Lezcano select TIMER_OF 538220e2a8dSPawel Moll default y if MFD_VEXPRESS_SYSREG 539220e2a8dSPawel Moll help 540220e2a8dSPawel Moll This option enables clock source based on free running 541220e2a8dSPawel Moll counter available in the "System Registers" block of 542220e2a8dSPawel Moll ARM Versatile, RealView and Versatile Express reference 543220e2a8dSPawel Moll platforms. 54458394271SJean Delvare 545fa5635a2SAndrew Brestickerconfig CLKSRC_MIPS_GIC 546fa5635a2SAndrew Bresticker bool 547fa5635a2SAndrew Bresticker depends on MIPS_GIC 548bb0eb050SDaniel Lezcano select TIMER_OF 549fa5635a2SAndrew Bresticker 550ccd63ce4SMarc Gonzalezconfig CLKSRC_TANGO_XTAL 5515a7351f0SDaniel Lezcano bool "Clocksource for Tango SoC" if COMPILE_TEST 5525a7351f0SDaniel Lezcano depends on ARM 553bb0eb050SDaniel Lezcano select TIMER_OF 5540881841fSDaniel Lezcano select CLKSRC_MMIO 5555a7351f0SDaniel Lezcano help 5565a7351f0SDaniel Lezcano This enables the clocksource for Tango SoC 557ccd63ce4SMarc Gonzalez 558e074ff86SDmitry Eremin-Solenikovconfig CLKSRC_PXA 5595ae996cbSDaniel Lezcano bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST 5605ae996cbSDaniel Lezcano depends on GENERIC_CLOCKEVENTS 561d7023e62SRichard Weinberger depends on HAS_IOMEM 5625ae996cbSDaniel Lezcano select CLKSRC_MMIO 563e074ff86SDmitry Eremin-Solenikov help 564e074ff86SDmitry Eremin-Solenikov This enables OST0 support available on PXA and SA-11x0 565e074ff86SDmitry Eremin-Solenikov platforms. 566618b902dSYoshinori Sato 56797a23bebSDaniel Lezcanoconfig H8300_TMR8 56846e7c3c6SDaniel Lezcano bool "Clockevent timer for the H8300 platform" if COMPILE_TEST 569863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 57046e7c3c6SDaniel Lezcano help 57146e7c3c6SDaniel Lezcano This enables the 8 bits timer for the H8300 platform. 57297a23bebSDaniel Lezcano 573618b902dSYoshinori Satoconfig H8300_TMR16 57446e7c3c6SDaniel Lezcano bool "Clockevent timer for the H83069 platform" if COMPILE_TEST 575863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 57646e7c3c6SDaniel Lezcano help 57746e7c3c6SDaniel Lezcano This enables the 16 bits timer for the H8300 platform with the 57846e7c3c6SDaniel Lezcano H83069 cpu. 579618b902dSYoshinori Sato 580618b902dSYoshinori Satoconfig H8300_TPU 58146e7c3c6SDaniel Lezcano bool "Clocksource for the H8300 platform" if COMPILE_TEST 582863ee050SRichard Weinberger depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 58346e7c3c6SDaniel Lezcano help 58446e7c3c6SDaniel Lezcano This enables the clocksource for the H8300 platform with the 58546e7c3c6SDaniel Lezcano H8S2678 cpu. 586618b902dSYoshinori Sato 587bea5af41SShawn Guoconfig CLKSRC_IMX_GPT 588bea5af41SShawn Guo bool "Clocksource using i.MX GPT" if COMPILE_TEST 589bea5af41SShawn Guo depends on ARM && CLKDEV_LOOKUP 590bea5af41SShawn Guo select CLKSRC_MMIO 591bea5af41SShawn Guo 59270bef01cSLee Jonesconfig CLKSRC_ST_LPC 593baacaf83SDaniel Lezcano bool "Low power clocksource found in the LPC" if COMPILE_TEST 594bb0eb050SDaniel Lezcano select TIMER_OF if OF 595863ee050SRichard Weinberger depends on HAS_IOMEM 5962be6d9bfSArnd Bergmann select CLKSRC_MMIO 59770bef01cSLee Jones help 59870bef01cSLee Jones Enable this option to use the Low Power controller timer 59970bef01cSLee Jones as clocksource. 60070bef01cSLee Jones 60158394271SJean Delvareendmenu 602