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 21*9b8bb773SBaruch Siachconfig DIGICOLOR_TIMER 22*9b8bb773SBaruch Siach bool 23*9b8bb773SBaruch Siach 2406c3df49SJamie Ilesconfig DW_APB_TIMER 2506c3df49SJamie Iles bool 26489bcceaSMattias Wallin 27cfda5901SDinh Nguyenconfig DW_APB_TIMER_OF 28cfda5901SDinh Nguyen bool 291b4eca0fSHeiko Stuebner select DW_APB_TIMER 3010021488SHeiko Stuebner select CLKSRC_OF 31cfda5901SDinh Nguyen 32468b8c4cSDaniel Lezcanoconfig ROCKCHIP_TIMER 33468b8c4cSDaniel Lezcano bool 34468b8c4cSDaniel Lezcano select CLKSRC_OF 35468b8c4cSDaniel Lezcano 366fe9cbd1SGregory CLEMENTconfig ARMADA_370_XP_TIMER 376fe9cbd1SGregory CLEMENT bool 387b0dd72aSJean Pihet select CLKSRC_OF 396fe9cbd1SGregory CLEMENT 40e4a6b378SCarlo Caioneconfig MESON6_TIMER 41e4a6b378SCarlo Caione bool 427b6b0a45SBeniamino Galvani select CLKSRC_MMIO 43e4a6b378SCarlo Caione 440c1dcfd5SSebastian Hesselbarthconfig ORION_TIMER 450c1dcfd5SSebastian Hesselbarth select CLKSRC_OF 460c1dcfd5SSebastian Hesselbarth select CLKSRC_MMIO 470c1dcfd5SSebastian Hesselbarth bool 480c1dcfd5SSebastian Hesselbarth 49119fd635SMaxime Ripardconfig SUN4I_TIMER 5071c568c0SMaxime Ripard select CLKSRC_MMIO 51b2ac5d75SMaxime Ripard bool 52b2ac5d75SMaxime Ripard 5367905540SMaxime Ripardconfig SUN5I_HSTIMER 5467905540SMaxime Ripard select CLKSRC_MMIO 5567905540SMaxime Ripard bool 5667905540SMaxime Ripard 57ff7ec345STony Priskconfig VT8500_TIMER 58ff7ec345STony Prisk bool 59ff7ec345STony Prisk 604f0f234fSMichal Simekconfig CADENCE_TTC_TIMER 614f0f234fSMichal Simek bool 624f0f234fSMichal Simek 63694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU 64694e33a7SLinus Walleij bool 65694e33a7SLinus Walleij depends on (ARCH_NOMADIK || ARCH_U8500) 66694e33a7SLinus Walleij select CLKSRC_MMIO 67694e33a7SLinus Walleij help 68694e33a7SLinus Walleij Support for Multi Timer Unit. MTU provides access 69694e33a7SLinus Walleij to multiple interrupt generating programmable 70694e33a7SLinus Walleij 32-bit free running decrementing counters. 71694e33a7SLinus Walleij 72694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU_SCHED_CLOCK 73694e33a7SLinus Walleij bool 74694e33a7SLinus Walleij depends on CLKSRC_NOMADIK_MTU 75694e33a7SLinus Walleij help 76694e33a7SLinus Walleij Use the Multi Timer Unit as the sched_clock. 77694e33a7SLinus Walleij 78489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU 79489bcceaSMattias Wallin bool "Clocksource PRCMU Timer" 8029746f48SLinus Walleij depends on UX500_SOC_DB8500 81489bcceaSMattias Wallin default y 82489bcceaSMattias Wallin help 83489bcceaSMattias Wallin Use the always on PRCMU Timer as clocksource 84489bcceaSMattias Wallin 85489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU_SCHED_CLOCK 86489bcceaSMattias Wallin bool "Clocksource PRCMU Timer sched_clock" 87694e33a7SLinus Walleij depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK) 88489bcceaSMattias Wallin default y 89489bcceaSMattias Wallin help 90489bcceaSMattias Wallin Use the always on PRCMU Timer as sched_clock 91985c0679SMarc Zyngier 929c9b7818SUwe Kleine-Königconfig CLKSRC_EFM32 939c9b7818SUwe Kleine-König bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 949c9b7818SUwe Kleine-König depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 9509ca2757SAxel Lin select CLKSRC_MMIO 969c9b7818SUwe Kleine-König default ARCH_EFM32 979c9b7818SUwe Kleine-König help 989c9b7818SUwe Kleine-König Support to use the timers of EFM32 SoCs as clock source and clock 999c9b7818SUwe Kleine-König event device. 1009c9b7818SUwe Kleine-König 1018a4da6e3SMark Rutlandconfig ARM_ARCH_TIMER 1028a4da6e3SMark Rutland bool 1030583fe47SRob Herring select CLKSRC_OF if OF 104a2c5d4edSJames Hogan 105037f6377SWill Deaconconfig ARM_ARCH_TIMER_EVTSTREAM 106037f6377SWill Deacon bool "Support for ARM architected timer event stream generation" 107037f6377SWill Deacon default y if ARM_ARCH_TIMER 10877f7ce9aSStephen Boyd depends on ARM_ARCH_TIMER 109037f6377SWill Deacon help 110037f6377SWill Deacon This option enables support for event stream generation based on 111037f6377SWill Deacon the ARM architected timer. It is used for waking up CPUs executing 112037f6377SWill Deacon the wfe instruction at a frequency represented as a power-of-2 113037f6377SWill Deacon divisor of the clock rate. 114037f6377SWill Deacon The main use of the event stream is wfe-based timeouts of userspace 115037f6377SWill Deacon locking implementations. It might also be useful for imposing timeout 116037f6377SWill Deacon on wfe to safeguard against any programming errors in case an expected 117037f6377SWill Deacon event is not generated. 118037f6377SWill Deacon This must be disabled for hardware validation purposes to detect any 119037f6377SWill Deacon hardware anomalies of missing events. 120037f6377SWill Deacon 121c1b40e44SStuart Menefyconfig ARM_GLOBAL_TIMER 122c1b40e44SStuart Menefy bool 123c1b40e44SStuart Menefy select CLKSRC_OF if OF 124c1b40e44SStuart Menefy help 125c1b40e44SStuart Menefy This options enables support for the ARM global timer unit 126c1b40e44SStuart Menefy 127c1b40e44SStuart Menefyconfig CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK 128c1b40e44SStuart Menefy bool 129c1b40e44SStuart Menefy depends on ARM_GLOBAL_TIMER 130c1b40e44SStuart Menefy default y 131c1b40e44SStuart Menefy help 132c1b40e44SStuart Menefy Use ARM global timer clock source as sched_clock 133c1b40e44SStuart Menefy 134b052ff30SMaxime Ripardconfig ATMEL_PIT 135b052ff30SMaxime Ripard select CLKSRC_OF if OF 136b052ff30SMaxime Ripard def_bool SOC_AT91SAM9 || SOC_SAMA5 137b052ff30SMaxime Ripard 138a2c5d4edSJames Hoganconfig CLKSRC_METAG_GENERIC 139a2c5d4edSJames Hogan def_bool y if METAG 140a2c5d4edSJames Hogan help 141a2c5d4edSJames Hogan This option enables support for the Meta per-thread timers. 1426938d75aSThomas Abraham 1436938d75aSThomas Abrahamconfig CLKSRC_EXYNOS_MCT 1446938d75aSThomas Abraham def_bool y if ARCH_EXYNOS 1453252a646SDoug Anderson depends on !ARM64 1466938d75aSThomas Abraham help 1476938d75aSThomas Abraham Support for Multi Core Timer controller on Exynos SoCs. 148241a9871SArnd Bergmann 149f1189989STomasz Figaconfig CLKSRC_SAMSUNG_PWM 15077d84434STomasz Figa bool 151f1189989STomasz Figa help 152f1189989STomasz Figa This is a new clocksource driver for the PWM timer found in 153f1189989STomasz Figa Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver 154f1189989STomasz Figa for all devicetree enabled platforms. This driver will be 155f1189989STomasz Figa needed only on systems that do not have the Exynos MCT available. 156c1967249SJingchang Lu 1572529c3a3SXiubo Liconfig FSL_FTM_TIMER 1582529c3a3SXiubo Li bool 1592529c3a3SXiubo Li help 1602529c3a3SXiubo Li Support for Freescale FlexTimer Module (FTM) timer. 1612529c3a3SXiubo Li 162c1967249SJingchang Luconfig VF_PIT_TIMER 163c1967249SJingchang Lu bool 164c1967249SJingchang Lu help 165c1967249SJingchang Lu Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. 166fd3f1270SMagnus Damm 167fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_CMT 168fd3f1270SMagnus Damm bool 169fd3f1270SMagnus Damm 170ecb3530dSMatthias Bruggerconfig MTK_TIMER 171ecb3530dSMatthias Brugger select CLKSRC_OF 172ecb3530dSMatthias Brugger select CLKSRC_MMIO 173ecb3530dSMatthias Brugger bool 174ecb3530dSMatthias Brugger 175fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_MTU2 176fd3f1270SMagnus Damm bool 177fd3f1270SMagnus Damm 178fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_TMU 179fd3f1270SMagnus Damm bool 180fd3f1270SMagnus Damm 181fd3f1270SMagnus Dammconfig SYS_SUPPORTS_EM_STI 182fd3f1270SMagnus Damm bool 183fd3f1270SMagnus Damm 184fd3f1270SMagnus Dammconfig SH_TIMER_CMT 185fd3f1270SMagnus Damm bool "Renesas CMT timer driver" if COMPILE_TEST 18687291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 187fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_CMT 188fd3f1270SMagnus Damm help 189fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 190fd3f1270SMagnus Damm the Compare Match Timer (CMT) hardware available in 16/32/48-bit 191fd3f1270SMagnus Damm variants on a wide range of Mobile and Automotive SoCs from Renesas. 192fd3f1270SMagnus Damm 193fd3f1270SMagnus Dammconfig SH_TIMER_MTU2 194fd3f1270SMagnus Damm bool "Renesas MTU2 timer driver" if COMPILE_TEST 19587291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 196fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_MTU2 197fd3f1270SMagnus Damm help 198fd3f1270SMagnus Damm This enables build of a clockevent driver for the Multi-Function 1997e139187SKuninori Morimoto Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. 200fd3f1270SMagnus Damm This hardware comes with 16 bit-timer registers. 201fd3f1270SMagnus Damm 202fd3f1270SMagnus Dammconfig SH_TIMER_TMU 203fd3f1270SMagnus Damm bool "Renesas TMU timer driver" if COMPILE_TEST 20487291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 205fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_TMU 206fd3f1270SMagnus Damm help 207fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 208fd3f1270SMagnus Damm the 32-bit Timer Unit (TMU) hardware available on a wide range 209fd3f1270SMagnus Damm SoCs from Renesas. 210fd3f1270SMagnus Damm 211fd3f1270SMagnus Dammconfig EM_TIMER_STI 212fd3f1270SMagnus Damm bool "Renesas STI timer driver" if COMPILE_TEST 21340c96312SChen Gang depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 214fd3f1270SMagnus Damm default SYS_SUPPORTS_EM_STI 215fd3f1270SMagnus Damm help 216fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 217fd3f1270SMagnus Damm the 48-bit System Timer (STI) hardware available on a SoCs 218fd3f1270SMagnus Damm such as EMEV2 from former NEC Electronics. 219dfc25e45SLinus Torvalds 2203f8e8ceeSKumar Galaconfig CLKSRC_QCOM 2213f8e8ceeSKumar Gala bool 222220e2a8dSPawel Moll 223220e2a8dSPawel Mollconfig CLKSRC_VERSATILE 224220e2a8dSPawel Moll bool "ARM Versatile (Express) reference platforms clock source" 225b33cdd28SArnd Bergmann depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET 226220e2a8dSPawel Moll select CLKSRC_OF 227220e2a8dSPawel Moll default y if MFD_VEXPRESS_SYSREG 228220e2a8dSPawel Moll help 229220e2a8dSPawel Moll This option enables clock source based on free running 230220e2a8dSPawel Moll counter available in the "System Registers" block of 231220e2a8dSPawel Moll ARM Versatile, RealView and Versatile Express reference 232220e2a8dSPawel Moll platforms. 23358394271SJean Delvare 234fa5635a2SAndrew Brestickerconfig CLKSRC_MIPS_GIC 235fa5635a2SAndrew Bresticker bool 236fa5635a2SAndrew Bresticker depends on MIPS_GIC 237e12aa828SAndrew Bresticker select CLKSRC_OF 238fa5635a2SAndrew Bresticker 2398d8bd7beSOleksij Rempelconfig ASM9260_TIMER 2408d8bd7beSOleksij Rempel bool "Alphascale ASM9260 timer driver" 2418d8bd7beSOleksij Rempel depends on GENERIC_CLOCKEVENTS 2428d8bd7beSOleksij Rempel select CLKSRC_MMIO 2438d8bd7beSOleksij Rempel select CLKSRC_OF 2448d8bd7beSOleksij Rempel default y if MACH_ASM9260 2458d8bd7beSOleksij Rempel help 2468d8bd7beSOleksij Rempel This enables build of a clocksource and clockevent driver for 2478d8bd7beSOleksij Rempel the 32-bit System Timer hardware available on a Alphascale ASM9260. 2488d8bd7beSOleksij Rempel 24958394271SJean Delvareendmenu 250