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 330c1dcfd5SSebastian Hesselbarthconfig ORION_TIMER 340c1dcfd5SSebastian Hesselbarth select CLKSRC_OF 350c1dcfd5SSebastian Hesselbarth select CLKSRC_MMIO 360c1dcfd5SSebastian Hesselbarth bool 370c1dcfd5SSebastian Hesselbarth 38119fd635SMaxime Ripardconfig SUN4I_TIMER 3971c568c0SMaxime Ripard select CLKSRC_MMIO 40b2ac5d75SMaxime Ripard bool 41b2ac5d75SMaxime Ripard 4267905540SMaxime Ripardconfig SUN5I_HSTIMER 4367905540SMaxime Ripard select CLKSRC_MMIO 4467905540SMaxime Ripard bool 4567905540SMaxime Ripard 46ff7ec345STony Priskconfig VT8500_TIMER 47ff7ec345STony Prisk bool 48ff7ec345STony Prisk 494f0f234fSMichal Simekconfig CADENCE_TTC_TIMER 504f0f234fSMichal Simek bool 514f0f234fSMichal Simek 52694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU 53694e33a7SLinus Walleij bool 54694e33a7SLinus Walleij depends on (ARCH_NOMADIK || ARCH_U8500) 55694e33a7SLinus Walleij select CLKSRC_MMIO 56694e33a7SLinus Walleij help 57694e33a7SLinus Walleij Support for Multi Timer Unit. MTU provides access 58694e33a7SLinus Walleij to multiple interrupt generating programmable 59694e33a7SLinus Walleij 32-bit free running decrementing counters. 60694e33a7SLinus Walleij 61694e33a7SLinus Walleijconfig CLKSRC_NOMADIK_MTU_SCHED_CLOCK 62694e33a7SLinus Walleij bool 63694e33a7SLinus Walleij depends on CLKSRC_NOMADIK_MTU 64694e33a7SLinus Walleij help 65694e33a7SLinus Walleij Use the Multi Timer Unit as the sched_clock. 66694e33a7SLinus Walleij 67489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU 68489bcceaSMattias Wallin bool "Clocksource PRCMU Timer" 6929746f48SLinus Walleij depends on UX500_SOC_DB8500 70489bcceaSMattias Wallin default y 71489bcceaSMattias Wallin help 72489bcceaSMattias Wallin Use the always on PRCMU Timer as clocksource 73489bcceaSMattias Wallin 74489bcceaSMattias Wallinconfig CLKSRC_DBX500_PRCMU_SCHED_CLOCK 75489bcceaSMattias Wallin bool "Clocksource PRCMU Timer sched_clock" 76694e33a7SLinus Walleij depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK) 77489bcceaSMattias Wallin default y 78489bcceaSMattias Wallin help 79489bcceaSMattias Wallin Use the always on PRCMU Timer as sched_clock 80985c0679SMarc Zyngier 819c9b7818SUwe Kleine-Königconfig CLKSRC_EFM32 829c9b7818SUwe Kleine-König bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 839c9b7818SUwe Kleine-König depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 8409ca2757SAxel Lin select CLKSRC_MMIO 859c9b7818SUwe Kleine-König default ARCH_EFM32 869c9b7818SUwe Kleine-König help 879c9b7818SUwe Kleine-König Support to use the timers of EFM32 SoCs as clock source and clock 889c9b7818SUwe Kleine-König event device. 899c9b7818SUwe Kleine-König 908a4da6e3SMark Rutlandconfig ARM_ARCH_TIMER 918a4da6e3SMark Rutland bool 920583fe47SRob Herring select CLKSRC_OF if OF 93a2c5d4edSJames Hogan 94037f6377SWill Deaconconfig ARM_ARCH_TIMER_EVTSTREAM 95037f6377SWill Deacon bool "Support for ARM architected timer event stream generation" 96037f6377SWill Deacon default y if ARM_ARCH_TIMER 9777f7ce9aSStephen Boyd depends on ARM_ARCH_TIMER 98037f6377SWill Deacon help 99037f6377SWill Deacon This option enables support for event stream generation based on 100037f6377SWill Deacon the ARM architected timer. It is used for waking up CPUs executing 101037f6377SWill Deacon the wfe instruction at a frequency represented as a power-of-2 102037f6377SWill Deacon divisor of the clock rate. 103037f6377SWill Deacon The main use of the event stream is wfe-based timeouts of userspace 104037f6377SWill Deacon locking implementations. It might also be useful for imposing timeout 105037f6377SWill Deacon on wfe to safeguard against any programming errors in case an expected 106037f6377SWill Deacon event is not generated. 107037f6377SWill Deacon This must be disabled for hardware validation purposes to detect any 108037f6377SWill Deacon hardware anomalies of missing events. 109037f6377SWill Deacon 110c1b40e44SStuart Menefyconfig ARM_GLOBAL_TIMER 111c1b40e44SStuart Menefy bool 112c1b40e44SStuart Menefy select CLKSRC_OF if OF 113c1b40e44SStuart Menefy help 114c1b40e44SStuart Menefy This options enables support for the ARM global timer unit 115c1b40e44SStuart Menefy 116c1b40e44SStuart Menefyconfig CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK 117c1b40e44SStuart Menefy bool 118c1b40e44SStuart Menefy depends on ARM_GLOBAL_TIMER 119c1b40e44SStuart Menefy default y 120c1b40e44SStuart Menefy help 121c1b40e44SStuart Menefy Use ARM global timer clock source as sched_clock 122c1b40e44SStuart Menefy 123a2c5d4edSJames Hoganconfig CLKSRC_METAG_GENERIC 124a2c5d4edSJames Hogan def_bool y if METAG 125a2c5d4edSJames Hogan help 126a2c5d4edSJames Hogan This option enables support for the Meta per-thread timers. 1276938d75aSThomas Abraham 1286938d75aSThomas Abrahamconfig CLKSRC_EXYNOS_MCT 1296938d75aSThomas Abraham def_bool y if ARCH_EXYNOS 1303252a646SDoug Anderson depends on !ARM64 1316938d75aSThomas Abraham help 1326938d75aSThomas Abraham Support for Multi Core Timer controller on Exynos SoCs. 133241a9871SArnd Bergmann 134f1189989STomasz Figaconfig CLKSRC_SAMSUNG_PWM 13577d84434STomasz Figa bool 136f1189989STomasz Figa help 137f1189989STomasz Figa This is a new clocksource driver for the PWM timer found in 138f1189989STomasz Figa Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver 139f1189989STomasz Figa for all devicetree enabled platforms. This driver will be 140f1189989STomasz Figa needed only on systems that do not have the Exynos MCT available. 141c1967249SJingchang Lu 1422529c3a3SXiubo Liconfig FSL_FTM_TIMER 1432529c3a3SXiubo Li bool 1442529c3a3SXiubo Li help 1452529c3a3SXiubo Li Support for Freescale FlexTimer Module (FTM) timer. 1462529c3a3SXiubo Li 147c1967249SJingchang Luconfig VF_PIT_TIMER 148c1967249SJingchang Lu bool 149c1967249SJingchang Lu help 150c1967249SJingchang Lu Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. 151fd3f1270SMagnus Damm 152fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_CMT 153fd3f1270SMagnus Damm bool 154fd3f1270SMagnus Damm 155ecb3530dSMatthias Bruggerconfig MTK_TIMER 156ecb3530dSMatthias Brugger select CLKSRC_OF 157ecb3530dSMatthias Brugger select CLKSRC_MMIO 158ecb3530dSMatthias Brugger bool 159ecb3530dSMatthias Brugger 160fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_MTU2 161fd3f1270SMagnus Damm bool 162fd3f1270SMagnus Damm 163fd3f1270SMagnus Dammconfig SYS_SUPPORTS_SH_TMU 164fd3f1270SMagnus Damm bool 165fd3f1270SMagnus Damm 166fd3f1270SMagnus Dammconfig SYS_SUPPORTS_EM_STI 167fd3f1270SMagnus Damm bool 168fd3f1270SMagnus Damm 169fd3f1270SMagnus Dammconfig SH_TIMER_CMT 170fd3f1270SMagnus Damm bool "Renesas CMT timer driver" if COMPILE_TEST 17187291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 172fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_CMT 173fd3f1270SMagnus Damm help 174fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 175fd3f1270SMagnus Damm the Compare Match Timer (CMT) hardware available in 16/32/48-bit 176fd3f1270SMagnus Damm variants on a wide range of Mobile and Automotive SoCs from Renesas. 177fd3f1270SMagnus Damm 178fd3f1270SMagnus Dammconfig SH_TIMER_MTU2 179fd3f1270SMagnus Damm bool "Renesas MTU2 timer driver" if COMPILE_TEST 18087291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 181fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_MTU2 182fd3f1270SMagnus Damm help 183fd3f1270SMagnus Damm This enables build of a clockevent driver for the Multi-Function 1847e139187SKuninori Morimoto Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. 185fd3f1270SMagnus Damm This hardware comes with 16 bit-timer registers. 186fd3f1270SMagnus Damm 187fd3f1270SMagnus Dammconfig SH_TIMER_TMU 188fd3f1270SMagnus Damm bool "Renesas TMU timer driver" if COMPILE_TEST 18987291a92SGeert Uytterhoeven depends on GENERIC_CLOCKEVENTS 190fd3f1270SMagnus Damm default SYS_SUPPORTS_SH_TMU 191fd3f1270SMagnus Damm help 192fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 193fd3f1270SMagnus Damm the 32-bit Timer Unit (TMU) hardware available on a wide range 194fd3f1270SMagnus Damm SoCs from Renesas. 195fd3f1270SMagnus Damm 196fd3f1270SMagnus Dammconfig EM_TIMER_STI 197fd3f1270SMagnus Damm bool "Renesas STI timer driver" if COMPILE_TEST 19840c96312SChen Gang depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 199fd3f1270SMagnus Damm default SYS_SUPPORTS_EM_STI 200fd3f1270SMagnus Damm help 201fd3f1270SMagnus Damm This enables build of a clocksource and clockevent driver for 202fd3f1270SMagnus Damm the 48-bit System Timer (STI) hardware available on a SoCs 203fd3f1270SMagnus Damm such as EMEV2 from former NEC Electronics. 204dfc25e45SLinus Torvalds 2053f8e8ceeSKumar Galaconfig CLKSRC_QCOM 2063f8e8ceeSKumar Gala bool 207220e2a8dSPawel Moll 208220e2a8dSPawel Mollconfig CLKSRC_VERSATILE 209220e2a8dSPawel Moll bool "ARM Versatile (Express) reference platforms clock source" 210b33cdd28SArnd Bergmann depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET 211220e2a8dSPawel Moll select CLKSRC_OF 212220e2a8dSPawel Moll default y if MFD_VEXPRESS_SYSREG 213220e2a8dSPawel Moll help 214220e2a8dSPawel Moll This option enables clock source based on free running 215220e2a8dSPawel Moll counter available in the "System Registers" block of 216220e2a8dSPawel Moll ARM Versatile, RealView and Versatile Express reference 217220e2a8dSPawel Moll platforms. 21858394271SJean Delvare 21958394271SJean Delvareendmenu 220