1menu "Clock Source drivers" 2 depends on !ARCH_USES_GETTIMEOFFSET 3 4config CLKSRC_OF 5 bool 6 select CLKSRC_PROBE 7 8config CLKSRC_ACPI 9 bool 10 select CLKSRC_PROBE 11 12config CLKSRC_PROBE 13 bool 14 15config CLKSRC_I8253 16 bool 17 18config CLKEVT_I8253 19 bool 20 21config I8253_LOCK 22 bool 23 24config CLKBLD_I8253 25 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK 26 27config CLKSRC_MMIO 28 bool 29 30config BCM2835_TIMER 31 bool "BCM2835 timer driver" if COMPILE_TEST 32 depends on GENERIC_CLOCKEVENTS 33 select CLKSRC_MMIO 34 help 35 Enables the support for the BCM2835 timer driver. 36 37config BCM_KONA_TIMER 38 bool "BCM mobile timer driver" if COMPILE_TEST 39 depends on GENERIC_CLOCKEVENTS 40 select CLKSRC_MMIO 41 help 42 Enables the support for the BCM Kona mobile timer driver. 43 44config DIGICOLOR_TIMER 45 bool "Digicolor timer driver" if COMPILE_TEST 46 depends on GENERIC_CLOCKEVENTS 47 select CLKSRC_MMIO 48 depends on HAS_IOMEM 49 help 50 Enables the support for the digicolor timer driver. 51 52config DW_APB_TIMER 53 bool "DW APB timer driver" if COMPILE_TEST 54 depends on GENERIC_CLOCKEVENTS 55 help 56 Enables the support for the dw_apb timer. 57 58config DW_APB_TIMER_OF 59 bool 60 select DW_APB_TIMER 61 select CLKSRC_OF 62 63config ROCKCHIP_TIMER 64 bool "Rockchip timer driver" if COMPILE_TEST 65 depends on ARM || ARM64 66 select CLKSRC_OF 67 help 68 Enables the support for the rockchip timer driver. 69 70config ARMADA_370_XP_TIMER 71 bool "Armada 370 and XP timer driver" if COMPILE_TEST 72 depends on ARM 73 select CLKSRC_OF 74 select CLKSRC_MMIO 75 help 76 Enables the support for the Armada 370 and XP timer driver. 77 78config MESON6_TIMER 79 bool "Meson6 timer driver" if COMPILE_TEST 80 depends on GENERIC_CLOCKEVENTS 81 select CLKSRC_MMIO 82 help 83 Enables the support for the Meson6 timer driver. 84 85config ORION_TIMER 86 bool "Orion timer driver" if COMPILE_TEST 87 depends on ARM 88 select CLKSRC_OF 89 select CLKSRC_MMIO 90 help 91 Enables the support for the Orion timer driver 92 93config SUN4I_TIMER 94 bool "Sun4i timer driver" if COMPILE_TEST 95 depends on GENERIC_CLOCKEVENTS 96 depends on HAS_IOMEM 97 select CLKSRC_MMIO 98 help 99 Enables support for the Sun4i timer. 100 101config SUN5I_HSTIMER 102 bool "Sun5i timer driver" if COMPILE_TEST 103 select CLKSRC_MMIO 104 depends on COMMON_CLK 105 help 106 Enables support the Sun5i timer. 107 108config TEGRA_TIMER 109 bool "Tegra timer driver" if COMPILE_TEST 110 select CLKSRC_MMIO 111 depends on ARM 112 help 113 Enables support for the Tegra driver. 114 115config VT8500_TIMER 116 bool "VT8500 timer driver" if COMPILE_TEST 117 depends on GENERIC_CLOCKEVENTS 118 depends on HAS_IOMEM 119 help 120 Enables support for the VT8500 driver. 121 122config CADENCE_TTC_TIMER 123 bool "Cadence TTC timer driver" if COMPILE_TEST 124 depends on COMMON_CLK 125 help 126 Enables support for the cadence ttc driver. 127 128config ASM9260_TIMER 129 bool "ASM9260 timer driver" if COMPILE_TEST 130 depends on GENERIC_CLOCKEVENTS 131 select CLKSRC_MMIO 132 select CLKSRC_OF 133 help 134 Enables support for the ASM9260 timer. 135 136config CLKSRC_NOMADIK_MTU 137 bool "Nomakdik clocksource driver" if COMPILE_TEST 138 depends on ARM 139 select CLKSRC_MMIO 140 help 141 Support for Multi Timer Unit. MTU provides access 142 to multiple interrupt generating programmable 143 32-bit free running decrementing counters. 144 145config CLKSRC_NOMADIK_MTU_SCHED_CLOCK 146 bool 147 depends on CLKSRC_NOMADIK_MTU 148 help 149 Use the Multi Timer Unit as the sched_clock. 150 151config CLKSRC_DBX500_PRCMU 152 bool "Clocksource PRCMU Timer" if COMPILE_TEST 153 depends on GENERIC_CLOCKEVENTS 154 depends on HAS_IOMEM 155 help 156 Use the always on PRCMU Timer as clocksource 157 158config CLPS711X_TIMER 159 bool "Cirrus logic timer driver" if COMPILE_TEST 160 depends on GENERIC_CLOCKEVENTS 161 select CLKSRC_MMIO 162 help 163 Enables support for the Cirrus Logic PS711 timer. 164 165config ATLAS7_TIMER 166 bool "Atlas7 timer driver" if COMPILE_TEST 167 depends on GENERIC_CLOCKEVENTS 168 select CLKSRC_MMIO 169 help 170 Enables support for the Atlas7 timer. 171 172config MOXART_TIMER 173 bool "Moxart timer driver" if COMPILE_TEST 174 depends on GENERIC_CLOCKEVENTS 175 select CLKSRC_MMIO 176 help 177 Enables support for the Moxart timer. 178 179config MXS_TIMER 180 bool "Mxs timer driver" if COMPILE_TEST 181 depends on GENERIC_CLOCKEVENTS 182 select CLKSRC_MMIO 183 select STMP_DEVICE 184 help 185 Enables support for the Mxs timer. 186 187config PRIMA2_TIMER 188 bool "Prima2 timer driver" if COMPILE_TEST 189 depends on GENERIC_CLOCKEVENTS 190 select CLKSRC_MMIO 191 help 192 Enables support for the Prima2 timer. 193 194config U300_TIMER 195 bool "U300 timer driver" if COMPILE_TEST 196 depends on GENERIC_CLOCKEVENTS 197 depends on ARM 198 select CLKSRC_MMIO 199 help 200 Enables support for the U300 timer. 201 202config NSPIRE_TIMER 203 bool "NSpire timer driver" if COMPILE_TEST 204 depends on GENERIC_CLOCKEVENTS 205 select CLKSRC_MMIO 206 help 207 Enables support for the Nspire timer. 208 209config KEYSTONE_TIMER 210 bool "Keystone timer driver" if COMPILE_TEST 211 depends on GENERIC_CLOCKEVENTS 212 depends on ARM || ARM64 213 select CLKSRC_MMIO 214 help 215 Enables support for the Keystone timer. 216 217config INTEGRATOR_AP_TIMER 218 bool "Integrator-ap timer driver" if COMPILE_TEST 219 depends on GENERIC_CLOCKEVENTS 220 select CLKSRC_MMIO 221 help 222 Enables support for the Integrator-ap timer. 223 224config CLKSRC_DBX500_PRCMU_SCHED_CLOCK 225 bool "Clocksource PRCMU Timer sched_clock" 226 depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK) 227 default y 228 help 229 Use the always on PRCMU Timer as sched_clock 230 231config CLKSRC_EFM32 232 bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 233 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) 234 select CLKSRC_MMIO 235 default ARCH_EFM32 236 help 237 Support to use the timers of EFM32 SoCs as clock source and clock 238 event device. 239 240config CLKSRC_LPC32XX 241 bool "Clocksource for LPC32XX" if COMPILE_TEST 242 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 243 depends on ARM 244 select CLKSRC_MMIO 245 select CLKSRC_OF 246 help 247 Support for the LPC32XX clocksource. 248 249config CLKSRC_PISTACHIO 250 bool "Clocksource for Pistachio SoC" if COMPILE_TEST 251 depends on HAS_IOMEM 252 select CLKSRC_OF 253 help 254 Enables the clocksource for the Pistachio SoC. 255 256config CLKSRC_TI_32K 257 bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST 258 depends on GENERIC_SCHED_CLOCK 259 select CLKSRC_OF if OF 260 help 261 This option enables support for Texas Instruments 32.768 Hz clocksource 262 available on many OMAP-like platforms. 263 264config CLKSRC_NPS 265 bool "NPS400 clocksource driver" if COMPILE_TEST 266 depends on !PHYS_ADDR_T_64BIT 267 select CLKSRC_MMIO 268 select CLKSRC_OF if OF 269 help 270 NPS400 clocksource support. 271 Got 64 bit counter with update rate up to 1000MHz. 272 This counter is accessed via couple of 32 bit memory mapped registers. 273 274config CLKSRC_STM32 275 bool "Clocksource for STM32 SoCs" if !ARCH_STM32 276 depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST) 277 select CLKSRC_MMIO 278 279config CLKSRC_MPS2 280 bool "Clocksource for MPS2 SoCs" if COMPILE_TEST 281 depends on GENERIC_SCHED_CLOCK 282 select CLKSRC_MMIO 283 select CLKSRC_OF 284 285config ARM_ARCH_TIMER 286 bool 287 select CLKSRC_OF if OF 288 select CLKSRC_ACPI if ACPI 289 290config ARM_ARCH_TIMER_EVTSTREAM 291 bool "Enable ARM architected timer event stream generation by default" 292 default y if ARM_ARCH_TIMER 293 depends on ARM_ARCH_TIMER 294 help 295 This option enables support by default for event stream generation 296 based on the ARM architected timer. It is used for waking up CPUs 297 executing the wfe instruction at a frequency represented as a 298 power-of-2 divisor of the clock rate. The behaviour can also be 299 overridden on the command line using the 300 clocksource.arm_arch_timer.evtstream parameter. 301 The main use of the event stream is wfe-based timeouts of userspace 302 locking implementations. It might also be useful for imposing timeout 303 on wfe to safeguard against any programming errors in case an expected 304 event is not generated. 305 This must be disabled for hardware validation purposes to detect any 306 hardware anomalies of missing events. 307 308config ARM_ARCH_TIMER_VCT_ACCESS 309 bool "Support for ARM architected timer virtual counter access in userspace" 310 default !ARM64 311 depends on ARM_ARCH_TIMER 312 help 313 This option enables support for reading the ARM architected timer's 314 virtual counter in userspace. 315 316config FSL_ERRATUM_A008585 317 bool "Workaround for Freescale/NXP Erratum A-008585" 318 default y 319 depends on ARM_ARCH_TIMER && ARM64 320 help 321 This option enables a workaround for Freescale/NXP Erratum 322 A-008585 ("ARM generic timer may contain an erroneous 323 value"). The workaround will only be active if the 324 fsl,erratum-a008585 property is found in the timer node. 325 326config ARM_GLOBAL_TIMER 327 bool "Support for the ARM global timer" if COMPILE_TEST 328 select CLKSRC_OF if OF 329 depends on ARM 330 help 331 This options enables support for the ARM global timer unit 332 333config ARM_TIMER_SP804 334 bool "Support for Dual Timer SP804 module" 335 depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP 336 select CLKSRC_MMIO 337 select CLKSRC_OF if OF 338 339config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK 340 bool 341 depends on ARM_GLOBAL_TIMER 342 default y 343 help 344 Use ARM global timer clock source as sched_clock 345 346config ARMV7M_SYSTICK 347 bool "Support for the ARMv7M system time" if COMPILE_TEST 348 select CLKSRC_OF if OF 349 select CLKSRC_MMIO 350 help 351 This options enables support for the ARMv7M system timer unit 352 353config ATMEL_PIT 354 select CLKSRC_OF if OF 355 def_bool SOC_AT91SAM9 || SOC_SAMA5 356 357config ATMEL_ST 358 bool "Atmel ST timer support" if COMPILE_TEST 359 depends on GENERIC_CLOCKEVENTS 360 select CLKSRC_OF 361 select MFD_SYSCON 362 help 363 Support for the Atmel ST timer. 364 365config CLKSRC_METAG_GENERIC 366 def_bool y if METAG 367 help 368 This option enables support for the Meta per-thread timers. 369 370config CLKSRC_EXYNOS_MCT 371 bool "Exynos multi core timer driver" if COMPILE_TEST 372 depends on ARM || ARM64 373 help 374 Support for Multi Core Timer controller on Exynos SoCs. 375 376config CLKSRC_SAMSUNG_PWM 377 bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST 378 depends on GENERIC_CLOCKEVENTS 379 depends on HAS_IOMEM 380 help 381 This is a new clocksource driver for the PWM timer found in 382 Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver 383 for all devicetree enabled platforms. This driver will be 384 needed only on systems that do not have the Exynos MCT available. 385 386config FSL_FTM_TIMER 387 bool "Freescale FlexTimer Module driver" if COMPILE_TEST 388 depends on GENERIC_CLOCKEVENTS 389 depends on HAS_IOMEM 390 select CLKSRC_MMIO 391 help 392 Support for Freescale FlexTimer Module (FTM) timer. 393 394config VF_PIT_TIMER 395 bool 396 select CLKSRC_MMIO 397 help 398 Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. 399 400config OXNAS_RPS_TIMER 401 bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST 402 depends on GENERIC_CLOCKEVENTS 403 select CLKSRC_OF 404 select CLKSRC_MMIO 405 help 406 This enables support for the Oxford Semiconductor OXNAS RPS timers. 407 408config SYS_SUPPORTS_SH_CMT 409 bool 410 411config MTK_TIMER 412 bool "Mediatek timer driver" if COMPILE_TEST 413 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 414 select CLKSRC_OF 415 select CLKSRC_MMIO 416 help 417 Support for Mediatek timer driver. 418 419config SYS_SUPPORTS_SH_MTU2 420 bool 421 422config SYS_SUPPORTS_SH_TMU 423 bool 424 425config SYS_SUPPORTS_EM_STI 426 bool 427 428config CLKSRC_JCORE_PIT 429 bool "J-Core PIT timer driver" if COMPILE_TEST 430 depends on OF 431 depends on GENERIC_CLOCKEVENTS 432 depends on HAS_IOMEM 433 select CLKSRC_MMIO 434 help 435 This enables build of clocksource and clockevent driver for 436 the integrated PIT in the J-Core synthesizable, open source SoC. 437 438config SH_TIMER_CMT 439 bool "Renesas CMT timer driver" if COMPILE_TEST 440 depends on GENERIC_CLOCKEVENTS 441 depends on HAS_IOMEM 442 default SYS_SUPPORTS_SH_CMT 443 help 444 This enables build of a clocksource and clockevent driver for 445 the Compare Match Timer (CMT) hardware available in 16/32/48-bit 446 variants on a wide range of Mobile and Automotive SoCs from Renesas. 447 448config SH_TIMER_MTU2 449 bool "Renesas MTU2 timer driver" if COMPILE_TEST 450 depends on GENERIC_CLOCKEVENTS 451 depends on HAS_IOMEM 452 default SYS_SUPPORTS_SH_MTU2 453 help 454 This enables build of a clockevent driver for the Multi-Function 455 Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. 456 This hardware comes with 16 bit-timer registers. 457 458config SH_TIMER_TMU 459 bool "Renesas TMU timer driver" if COMPILE_TEST 460 depends on GENERIC_CLOCKEVENTS 461 depends on HAS_IOMEM 462 default SYS_SUPPORTS_SH_TMU 463 help 464 This enables build of a clocksource and clockevent driver for 465 the 32-bit Timer Unit (TMU) hardware available on a wide range 466 SoCs from Renesas. 467 468config EM_TIMER_STI 469 bool "Renesas STI timer driver" if COMPILE_TEST 470 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 471 default SYS_SUPPORTS_EM_STI 472 help 473 This enables build of a clocksource and clockevent driver for 474 the 48-bit System Timer (STI) hardware available on a SoCs 475 such as EMEV2 from former NEC Electronics. 476 477config CLKSRC_QCOM 478 bool "Qualcomm MSM timer" if COMPILE_TEST 479 depends on ARM 480 select CLKSRC_OF 481 help 482 This enables the clocksource and the per CPU clockevent driver for the 483 Qualcomm SoCs. 484 485config CLKSRC_VERSATILE 486 bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST 487 depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET 488 select CLKSRC_OF 489 default y if MFD_VEXPRESS_SYSREG 490 help 491 This option enables clock source based on free running 492 counter available in the "System Registers" block of 493 ARM Versatile, RealView and Versatile Express reference 494 platforms. 495 496config CLKSRC_MIPS_GIC 497 bool 498 depends on MIPS_GIC 499 select CLKSRC_OF 500 501config CLKSRC_TANGO_XTAL 502 bool "Clocksource for Tango SoC" if COMPILE_TEST 503 depends on ARM 504 select CLKSRC_OF 505 select CLKSRC_MMIO 506 help 507 This enables the clocksource for Tango SoC 508 509config CLKSRC_PXA 510 bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST 511 depends on GENERIC_CLOCKEVENTS 512 depends on HAS_IOMEM 513 select CLKSRC_MMIO 514 help 515 This enables OST0 support available on PXA and SA-11x0 516 platforms. 517 518config H8300_TMR8 519 bool "Clockevent timer for the H8300 platform" if COMPILE_TEST 520 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 521 help 522 This enables the 8 bits timer for the H8300 platform. 523 524config H8300_TMR16 525 bool "Clockevent timer for the H83069 platform" if COMPILE_TEST 526 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 527 help 528 This enables the 16 bits timer for the H8300 platform with the 529 H83069 cpu. 530 531config H8300_TPU 532 bool "Clocksource for the H8300 platform" if COMPILE_TEST 533 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM 534 help 535 This enables the clocksource for the H8300 platform with the 536 H8S2678 cpu. 537 538config CLKSRC_IMX_GPT 539 bool "Clocksource using i.MX GPT" if COMPILE_TEST 540 depends on ARM && CLKDEV_LOOKUP 541 select CLKSRC_MMIO 542 543config CLKSRC_ST_LPC 544 bool "Low power clocksource found in the LPC" if COMPILE_TEST 545 select CLKSRC_OF if OF 546 depends on HAS_IOMEM 547 select CLKSRC_MMIO 548 help 549 Enable this option to use the Low Power controller timer 550 as clocksource. 551 552endmenu 553