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 29*468b8c4cSDaniel Lezcanoconfig ROCKCHIP_TIMER 30*468b8c4cSDaniel Lezcano bool 31*468b8c4cSDaniel Lezcano select CLKSRC_OF 32*468b8c4cSDaniel Lezcano 336fe9cbd1SGregory CLEMENTconfig ARMADA_370_XP_TIMER 346fe9cbd1SGregory CLEMENT bool 357b0dd72aSJean Pihet select CLKSRC_OF 366fe9cbd1SGregory CLEMENT 37e4a6b378SCarlo Caioneconfig MESON6_TIMER 38e4a6b378SCarlo Caione bool 397b6b0a45SBeniamino Galvani select CLKSRC_MMIO 40e4a6b378SCarlo Caione 410c1dcfd5SSebastian Hesselbarthconfig ORION_TIMER 420c1dcfd5SSebastian Hesselbarth select CLKSRC_OF 430c1dcfd5SSebastian Hesselbarth select CLKSRC_MMIO 440c1dcfd5SSebastian Hesselbarth bool 450c1dcfd5SSebastian Hesselbarth 46119fd635SMaxime Ripardconfig SUN4I_TIMER 4771c568c0SMaxime Ripard select CLKSRC_MMIO 48b2ac5d75SMaxime Ripard bool 49b2ac5d75SMaxime Ripard 5067905540SMaxime Ripardconfig SUN5I_HSTIMER 5167905540SMaxime Ripard select CLKSRC_MMIO 5267905540SMaxime Ripard bool 5367905540SMaxime Ripard 54ff7ec345STony Priskconfig VT8500_TIMER 55ff7ec345STony Prisk bool 56ff7ec345STony Prisk 574f0f234fSMichal Simekconfig CADENCE_TTC_TIMER 584f0f234fSMichal Simek bool 594f0f234fSMichal Simek 60694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU 61694e33a7SLinus Walleij bool 62694e33a7SLinus Walleij depends on (ARCH_NOMADIK || ARCH_U8500) 63694e33a7SLinus Walleij select CLKSRC_MMIO 64694e33a7SLinus Walleij help 65694e33a7SLinus Walleij Support for Multi Timer Unit. MTU provides access 66694e33a7SLinus Walleij to multiple interrupt generating programmable 67694e33a7SLinus Walleij 32-bit free running decrementing counters. 68694e33a7SLinus Walleij 69694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU_SCHED_CLOCK 70694e33a7SLinus Walleij bool 71694e33a7SLinus Walleij depends on CLKSRC_NOMADIK_MTU 72694e33a7SLinus Walleij help 73694e33a7SLinus Walleij Use the Multi Timer Unit as the sched_clock. 74694e33a7SLinus Walleij 75489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU 76489bcceaSMattias Wallin bool "Clocksource PRCMU Timer" 7729746f48SLinus Walleij depends on UX500_SOC_DB8500 78489bcceaSMattias Wallin default y 79489bcceaSMattias Wallin help 80489bcceaSMattias Wallin Use the always on PRCMU Timer as clocksource 81489bcceaSMattias Wallin 82489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU_SCHED_CLOCK 83489bcceaSMattias Wallin bool "Clocksource PRCMU Timer sched_clock" 84694e33a7SLinus Walleij depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK) 85489bcceaSMattias Wallin default y 86489bcceaSMattias Wallin help 87489bcceaSMattias Wallin Use the always on PRCMU Timer as sched_clock 88985c0679SMarc Zyngier 899c9b7818SUwe Kleine-Königconfig CLKSRC_EFM32 909c9b7818SUwe Kleine-König bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 919c9b7818SUwe Kleine-König depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 9209ca2757SAxel Lin select CLKSRC_MMIO 939c9b7818SUwe Kleine-König default ARCH_EFM32 949c9b7818SUwe Kleine-König help 959c9b7818SUwe Kleine-König Support to use the timers of EFM32 SoCs as clock source and clock 969c9b7818SUwe Kleine-König event device. 979c9b7818SUwe Kleine-König 988a4da6e3SMark Rutlandconfig ARM_ARCH_TIMER 998a4da6e3SMark Rutland bool 1000583fe47SRob Herring select CLKSRC_OF if OF 101a2c5d4edSJames Hogan 102037f6377SWill Deaconconfig ARM_ARCH_TIMER_EVTSTREAM 103037f6377SWill Deacon bool "Support for ARM architected timer event stream generation" 104037f6377SWill Deacon default y if ARM_ARCH_TIMER 10577f7ce9aSStephen Boyd depends on ARM_ARCH_TIMER 106037f6377SWill Deacon help 107037f6377SWill Deacon This option enables support for event stream generation based on 108037f6377SWill Deacon the ARM architected timer. It is used for waking up CPUs executing 109037f6377SWill Deacon the wfe instruction at a frequency represented as a power-of-2 110037f6377SWill Deacon divisor of the clock rate. 111037f6377SWill Deacon The main use of the event stream is wfe-based timeouts of userspace 112037f6377SWill Deacon locking implementations. It might also be useful for imposing timeout 113037f6377SWill Deacon on wfe to safeguard against any programming errors in case an expected 114037f6377SWill Deacon event is not generated. 115037f6377SWill Deacon This must be disabled for hardware validation purposes to detect any 116037f6377SWill Deacon hardware anomalies of missing events. 117037f6377SWill Deacon 118c1b40e44SStuart Menefyconfig ARM_GLOBAL_TIMER 119c1b40e44SStuart Menefy bool 120c1b40e44SStuart Menefy select CLKSRC_OF if OF 121c1b40e44SStuart Menefy help 122c1b40e44SStuart Menefy This options enables support for the ARM global timer unit 123c1b40e44SStuart Menefy 124c1b40e44SStuart Menefyconfig CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK 125c1b40e44SStuart Menefy bool 126c1b40e44SStuart Menefy depends on ARM_GLOBAL_TIMER 127c1b40e44SStuart Menefy default y 128c1b40e44SStuart Menefy help 129c1b40e44SStuart Menefy Use ARM global timer clock source as sched_clock 130c1b40e44SStuart Menefy 131b052ff30SMaxime Ripardconfig ATMEL_PIT 132b052ff30SMaxime Ripard select CLKSRC_OF if OF 133b052ff30SMaxime Ripard def_bool SOC_AT91SAM9 || SOC_SAMA5 134b052ff30SMaxime Ripard 135a2c5d4edSJames Hoganconfig CLKSRC_METAG_GENERIC 136a2c5d4edSJames Hogan def_bool y if METAG 137a2c5d4edSJames Hogan help 138a2c5d4edSJames Hogan This option enables support for the Meta per-thread timers. 1396938d75aSThomas Abraham 1406938d75aSThomas Abrahamconfig CLKSRC_EXYNOS_MCT 1416938d75aSThomas Abraham def_bool y if ARCH_EXYNOS 1423252a646SDoug Anderson depends on !ARM64 1436938d75aSThomas Abraham help 1446938d75aSThomas Abraham Support for Multi Core Timer controller on Exynos SoCs. 145241a9871SArnd Bergmann 146f1189989STomasz Figaconfig CLKSRC_SAMSUNG_PWM 14777d84434STomasz Figa bool 148f1189989STomasz Figa help 149f1189989STomasz Figa This is a new clocksource driver for the PWM timer found in 150f1189989STomasz Figa Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver 151f1189989STomasz Figa for all devicetree enabled platforms. This driver will be 152f1189989STomasz Figa needed only on systems that do not have the Exynos MCT available. 153c1967249SJingchang Lu 1542529c3a3SXiubo Liconfig FSL_FTM_TIMER 1552529c3a3SXiubo Li bool 1562529c3a3SXiubo Li help 1572529c3a3SXiubo Li Support for Freescale FlexTimer Module (FTM) timer. 1582529c3a3SXiubo Li 159c1967249SJingchang Luconfig VF_PIT_TIMER 160c1967249SJingchang Lu bool 161c1967249SJingchang Lu help 162c1967249SJingchang Lu Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. 163fd3f1270SMagnus Damm 164fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_CMT 165fd3f1270SMagnus Damm bool 166fd3f1270SMagnus Damm 167ecb3530dSMatthias Bruggerconfig MTK_TIMER 168ecb3530dSMatthias Brugger select CLKSRC_OF 169ecb3530dSMatthias Brugger select CLKSRC_MMIO 170ecb3530dSMatthias Brugger bool 171ecb3530dSMatthias Brugger 172fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_MTU2 173fd3f1270SMagnus Damm bool 174fd3f1270SMagnus Damm 175fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_TMU 176fd3f1270SMagnus Damm bool 177fd3f1270SMagnus Damm 178fd3f1270SMagnus Dammconfig SYS_SUPPORTS_EM_STI 179fd3f1270SMagnus Damm bool 180fd3f1270SMagnus Damm 181fd3f1270SMagnus Dammconfig SH_TIMER_CMT 182fd3f1270SMagnus Damm bool "Renesas CMT timer driver" if COMPILE_TEST 18387291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 184fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_CMT 185fd3f1270SMagnus Damm help 186fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 187fd3f1270SMagnus Damm the Compare Match Timer (CMT) hardware available in 16/32/48-bit 188fd3f1270SMagnus Damm variants on a wide range of Mobile and Automotive SoCs from Renesas. 189fd3f1270SMagnus Damm 190fd3f1270SMagnus Dammconfig SH_TIMER_MTU2 191fd3f1270SMagnus Damm bool "Renesas MTU2 timer driver" if COMPILE_TEST 19287291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 193fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_MTU2 194fd3f1270SMagnus Damm help 195fd3f1270SMagnus Damm This enables build of a clockevent driver for the Multi-Function 1967e139187SKuninori Morimoto Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. 197fd3f1270SMagnus Damm This hardware comes with 16 bit-timer registers. 198fd3f1270SMagnus Damm 199fd3f1270SMagnus Dammconfig SH_TIMER_TMU 200fd3f1270SMagnus Damm bool "Renesas TMU timer driver" if COMPILE_TEST 20187291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 202fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_TMU 203fd3f1270SMagnus Damm help 204fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 205fd3f1270SMagnus Damm the 32-bit Timer Unit (TMU) hardware available on a wide range 206fd3f1270SMagnus Damm SoCs from Renesas. 207fd3f1270SMagnus Damm 208fd3f1270SMagnus Dammconfig EM_TIMER_STI 209fd3f1270SMagnus Damm bool "Renesas STI timer driver" if COMPILE_TEST 21040c96312SChen Gang depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 211fd3f1270SMagnus Damm default SYS_SUPPORTS_EM_STI 212fd3f1270SMagnus Damm help 213fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 214fd3f1270SMagnus Damm the 48-bit System Timer (STI) hardware available on a SoCs 215fd3f1270SMagnus Damm such as EMEV2 from former NEC Electronics. 216dfc25e45SLinus Torvalds 2173f8e8ceeSKumar Galaconfig CLKSRC_QCOM 2183f8e8ceeSKumar Gala bool 219220e2a8dSPawel Moll 220220e2a8dSPawel Mollconfig CLKSRC_VERSATILE 221220e2a8dSPawel Moll bool "ARM Versatile (Express) reference platforms clock source" 222b33cdd28SArnd Bergmann depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET 223220e2a8dSPawel Moll select CLKSRC_OF 224220e2a8dSPawel Moll default y if MFD_VEXPRESS_SYSREG 225220e2a8dSPawel Moll help 226220e2a8dSPawel Moll This option enables clock source based on free running 227220e2a8dSPawel Moll counter available in the "System Registers" block of 228220e2a8dSPawel Moll ARM Versatile, RealView and Versatile Express reference 229220e2a8dSPawel Moll platforms. 23058394271SJean Delvare 231fa5635a2SAndrew Brestickerconfig CLKSRC_MIPS_GIC 232fa5635a2SAndrew Bresticker bool 233fa5635a2SAndrew Bresticker depends on MIPS_GIC 234e12aa828SAndrew Bresticker select CLKSRC_OF 235fa5635a2SAndrew Bresticker 2368d8bd7beSOleksij Rempelconfig ASM9260_TIMER 2378d8bd7beSOleksij Rempel bool "Alphascale ASM9260 timer driver" 2388d8bd7beSOleksij Rempel depends on GENERIC_CLOCKEVENTS 2398d8bd7beSOleksij Rempel select CLKSRC_MMIO 2408d8bd7beSOleksij Rempel select CLKSRC_OF 2418d8bd7beSOleksij Rempel default y if MACH_ASM9260 2428d8bd7beSOleksij Rempel help 2438d8bd7beSOleksij Rempel This enables build of a clocksource and clockevent driver for 2448d8bd7beSOleksij Rempel the 32-bit System Timer hardware available on a Alphascale ASM9260. 2458d8bd7beSOleksij Rempel 24658394271SJean Delvareendmenu 247