158394271SJean Delvaremenu "Clock Source drivers" 258394271SJean Delvare 3ae278a93SStephen Warrenconfig CLKSRC_OF 4ae278a93SStephen Warren bool 5ae278a93SStephen Warren 689c0b8e2SRussell Kingconfig CLKSRC_I8253 789c0b8e2SRussell King bool 8442c8176SRussell King 9e6220bdcSThomas Gleixnerconfig CLKEVT_I8253 10e6220bdcSThomas Gleixner bool 11e6220bdcSThomas Gleixner 1215f304b6SRalf Baechleconfig I8253_LOCK 1315f304b6SRalf Baechle bool 1415f304b6SRalf Baechle 1515f304b6SRalf Baechleconfig CLKBLD_I8253 16e6220bdcSThomas Gleixner def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK 1715f304b6SRalf Baechle 18442c8176SRussell Kingconfig CLKSRC_MMIO 19442c8176SRussell King bool 2006c3df49SJamie Iles 2106c3df49SJamie Ilesconfig DW_APB_TIMER 2206c3df49SJamie Iles bool 23489bcceaSMattias Wallin 24cfda5901SDinh Nguyenconfig DW_APB_TIMER_OF 25cfda5901SDinh Nguyen bool 261b4eca0fSHeiko Stuebner select DW_APB_TIMER 2710021488SHeiko Stuebner select CLKSRC_OF 28cfda5901SDinh Nguyen 296fe9cbd1SGregory CLEMENTconfig ARMADA_370_XP_TIMER 306fe9cbd1SGregory CLEMENT bool 317b0dd72aSJean Pihet select CLKSRC_OF 326fe9cbd1SGregory CLEMENT 33e4a6b378SCarlo Caioneconfig MESON6_TIMER 34e4a6b378SCarlo Caione bool 35e4a6b378SCarlo Caione 360c1dcfd5SSebastian Hesselbarthconfig ORION_TIMER 370c1dcfd5SSebastian Hesselbarth select CLKSRC_OF 380c1dcfd5SSebastian Hesselbarth select CLKSRC_MMIO 390c1dcfd5SSebastian Hesselbarth bool 400c1dcfd5SSebastian Hesselbarth 41119fd635SMaxime Ripardconfig SUN4I_TIMER 4271c568c0SMaxime Ripard select CLKSRC_MMIO 43b2ac5d75SMaxime Ripard bool 44b2ac5d75SMaxime Ripard 4567905540SMaxime Ripardconfig SUN5I_HSTIMER 4667905540SMaxime Ripard select CLKSRC_MMIO 4767905540SMaxime Ripard bool 4867905540SMaxime Ripard 49ff7ec345STony Priskconfig VT8500_TIMER 50ff7ec345STony Prisk bool 51ff7ec345STony Prisk 524f0f234fSMichal Simekconfig CADENCE_TTC_TIMER 534f0f234fSMichal Simek bool 544f0f234fSMichal Simek 55694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU 56694e33a7SLinus Walleij bool 57694e33a7SLinus Walleij depends on (ARCH_NOMADIK || ARCH_U8500) 58694e33a7SLinus Walleij select CLKSRC_MMIO 59694e33a7SLinus Walleij help 60694e33a7SLinus Walleij Support for Multi Timer Unit. MTU provides access 61694e33a7SLinus Walleij to multiple interrupt generating programmable 62694e33a7SLinus Walleij 32-bit free running decrementing counters. 63694e33a7SLinus Walleij 64694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU_SCHED_CLOCK 65694e33a7SLinus Walleij bool 66694e33a7SLinus Walleij depends on CLKSRC_NOMADIK_MTU 67694e33a7SLinus Walleij help 68694e33a7SLinus Walleij Use the Multi Timer Unit as the sched_clock. 69694e33a7SLinus Walleij 70489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU 71489bcceaSMattias Wallin bool "Clocksource PRCMU Timer" 7229746f48SLinus Walleij depends on UX500_SOC_DB8500 73489bcceaSMattias Wallin default y 74489bcceaSMattias Wallin help 75489bcceaSMattias Wallin Use the always on PRCMU Timer as clocksource 76489bcceaSMattias Wallin 77489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU_SCHED_CLOCK 78489bcceaSMattias Wallin bool "Clocksource PRCMU Timer sched_clock" 79694e33a7SLinus Walleij depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK) 80489bcceaSMattias Wallin default y 81489bcceaSMattias Wallin help 82489bcceaSMattias Wallin Use the always on PRCMU Timer as sched_clock 83985c0679SMarc Zyngier 849c9b7818SUwe Kleine-Königconfig CLKSRC_EFM32 859c9b7818SUwe Kleine-König bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 869c9b7818SUwe Kleine-König depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 8709ca2757SAxel Lin select CLKSRC_MMIO 889c9b7818SUwe Kleine-König default ARCH_EFM32 899c9b7818SUwe Kleine-König help 909c9b7818SUwe Kleine-König Support to use the timers of EFM32 SoCs as clock source and clock 919c9b7818SUwe Kleine-König event device. 929c9b7818SUwe Kleine-König 938a4da6e3SMark Rutlandconfig ARM_ARCH_TIMER 948a4da6e3SMark Rutland bool 950583fe47SRob Herring select CLKSRC_OF if OF 96a2c5d4edSJames Hogan 97037f6377SWill Deaconconfig ARM_ARCH_TIMER_EVTSTREAM 98037f6377SWill Deacon bool "Support for ARM architected timer event stream generation" 99037f6377SWill Deacon default y if ARM_ARCH_TIMER 10077f7ce9aSStephen Boyd depends on ARM_ARCH_TIMER 101037f6377SWill Deacon help 102037f6377SWill Deacon This option enables support for event stream generation based on 103037f6377SWill Deacon the ARM architected timer. It is used for waking up CPUs executing 104037f6377SWill Deacon the wfe instruction at a frequency represented as a power-of-2 105037f6377SWill Deacon divisor of the clock rate. 106037f6377SWill Deacon The main use of the event stream is wfe-based timeouts of userspace 107037f6377SWill Deacon locking implementations. It might also be useful for imposing timeout 108037f6377SWill Deacon on wfe to safeguard against any programming errors in case an expected 109037f6377SWill Deacon event is not generated. 110037f6377SWill Deacon This must be disabled for hardware validation purposes to detect any 111037f6377SWill Deacon hardware anomalies of missing events. 112037f6377SWill Deacon 113c1b40e44SStuart Menefyconfig ARM_GLOBAL_TIMER 114c1b40e44SStuart Menefy bool 115c1b40e44SStuart Menefy select CLKSRC_OF if OF 116c1b40e44SStuart Menefy help 117c1b40e44SStuart Menefy This options enables support for the ARM global timer unit 118c1b40e44SStuart Menefy 119c1b40e44SStuart Menefyconfig CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK 120c1b40e44SStuart Menefy bool 121c1b40e44SStuart Menefy depends on ARM_GLOBAL_TIMER 122c1b40e44SStuart Menefy default y 123c1b40e44SStuart Menefy help 124c1b40e44SStuart Menefy Use ARM global timer clock source as sched_clock 125c1b40e44SStuart Menefy 126b052ff30SMaxime Ripardconfig ATMEL_PIT 127b052ff30SMaxime Ripard select CLKSRC_OF if OF 128b052ff30SMaxime Ripard def_bool SOC_AT91SAM9 || SOC_SAMA5 129b052ff30SMaxime Ripard 130a2c5d4edSJames Hoganconfig CLKSRC_METAG_GENERIC 131a2c5d4edSJames Hogan def_bool y if METAG 132a2c5d4edSJames Hogan help 133a2c5d4edSJames Hogan This option enables support for the Meta per-thread timers. 1346938d75aSThomas Abraham 1356938d75aSThomas Abrahamconfig CLKSRC_EXYNOS_MCT 1366938d75aSThomas Abraham def_bool y if ARCH_EXYNOS 1373252a646SDoug Anderson depends on !ARM64 1386938d75aSThomas Abraham help 1396938d75aSThomas Abraham Support for Multi Core Timer controller on Exynos SoCs. 140241a9871SArnd Bergmann 141f1189989STomasz Figaconfig CLKSRC_SAMSUNG_PWM 14277d84434STomasz Figa bool 143f1189989STomasz Figa help 144f1189989STomasz Figa This is a new clocksource driver for the PWM timer found in 145f1189989STomasz Figa Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver 146f1189989STomasz Figa for all devicetree enabled platforms. This driver will be 147f1189989STomasz Figa needed only on systems that do not have the Exynos MCT available. 148c1967249SJingchang Lu 1492529c3a3SXiubo Liconfig FSL_FTM_TIMER 1502529c3a3SXiubo Li bool 1512529c3a3SXiubo Li help 1522529c3a3SXiubo Li Support for Freescale FlexTimer Module (FTM) timer. 1532529c3a3SXiubo Li 154c1967249SJingchang Luconfig VF_PIT_TIMER 155c1967249SJingchang Lu bool 156c1967249SJingchang Lu help 157c1967249SJingchang Lu Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. 158fd3f1270SMagnus Damm 159fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_CMT 160fd3f1270SMagnus Damm bool 161fd3f1270SMagnus Damm 162ecb3530dSMatthias Bruggerconfig MTK_TIMER 163ecb3530dSMatthias Brugger select CLKSRC_OF 164ecb3530dSMatthias Brugger select CLKSRC_MMIO 165ecb3530dSMatthias Brugger bool 166ecb3530dSMatthias Brugger 167fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_MTU2 168fd3f1270SMagnus Damm bool 169fd3f1270SMagnus Damm 170fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_TMU 171fd3f1270SMagnus Damm bool 172fd3f1270SMagnus Damm 173fd3f1270SMagnus Dammconfig SYS_SUPPORTS_EM_STI 174fd3f1270SMagnus Damm bool 175fd3f1270SMagnus Damm 176fd3f1270SMagnus Dammconfig SH_TIMER_CMT 177fd3f1270SMagnus Damm bool "Renesas CMT timer driver" if COMPILE_TEST 17887291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 179fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_CMT 180fd3f1270SMagnus Damm help 181fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 182fd3f1270SMagnus Damm the Compare Match Timer (CMT) hardware available in 16/32/48-bit 183fd3f1270SMagnus Damm variants on a wide range of Mobile and Automotive SoCs from Renesas. 184fd3f1270SMagnus Damm 185fd3f1270SMagnus Dammconfig SH_TIMER_MTU2 186fd3f1270SMagnus Damm bool "Renesas MTU2 timer driver" if COMPILE_TEST 18787291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 188fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_MTU2 189fd3f1270SMagnus Damm help 190fd3f1270SMagnus Damm This enables build of a clockevent driver for the Multi-Function 1917e139187SKuninori Morimoto Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. 192fd3f1270SMagnus Damm This hardware comes with 16 bit-timer registers. 193fd3f1270SMagnus Damm 194fd3f1270SMagnus Dammconfig SH_TIMER_TMU 195fd3f1270SMagnus Damm bool "Renesas TMU timer driver" if COMPILE_TEST 19687291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 197fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_TMU 198fd3f1270SMagnus Damm help 199fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 200fd3f1270SMagnus Damm the 32-bit Timer Unit (TMU) hardware available on a wide range 201fd3f1270SMagnus Damm SoCs from Renesas. 202fd3f1270SMagnus Damm 203fd3f1270SMagnus Dammconfig EM_TIMER_STI 204fd3f1270SMagnus Damm bool "Renesas STI timer driver" if COMPILE_TEST 20540c96312SChen Gang depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 206fd3f1270SMagnus Damm default SYS_SUPPORTS_EM_STI 207fd3f1270SMagnus Damm help 208fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 209fd3f1270SMagnus Damm the 48-bit System Timer (STI) hardware available on a SoCs 210fd3f1270SMagnus Damm such as EMEV2 from former NEC Electronics. 211dfc25e45SLinus Torvalds 2123f8e8ceeSKumar Galaconfig CLKSRC_QCOM 2133f8e8ceeSKumar Gala bool 214220e2a8dSPawel Moll 215220e2a8dSPawel Mollconfig CLKSRC_VERSATILE 216220e2a8dSPawel Moll bool "ARM Versatile (Express) reference platforms clock source" 217b33cdd28SArnd Bergmann depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET 218220e2a8dSPawel Moll select CLKSRC_OF 219220e2a8dSPawel Moll default y if MFD_VEXPRESS_SYSREG 220220e2a8dSPawel Moll help 221220e2a8dSPawel Moll This option enables clock source based on free running 222220e2a8dSPawel Moll counter available in the "System Registers" block of 223220e2a8dSPawel Moll ARM Versatile, RealView and Versatile Express reference 224220e2a8dSPawel Moll platforms. 22558394271SJean Delvare 226fa5635a2SAndrew Brestickerconfig CLKSRC_MIPS_GIC 227fa5635a2SAndrew Bresticker bool 228fa5635a2SAndrew Bresticker depends on MIPS_GIC 229fa5635a2SAndrew Bresticker 23058394271SJean Delvareendmenu 231