| 1 | menu "Clock Source drivers" |
| 2 | depends on !ARCH_USES_GETTIMEOFFSET |
| 3 | |
| 4 | config CLKSRC_OF |
| 5 | bool |
| 6 | select CLKSRC_PROBE |
| 7 | |
| 8 | config CLKSRC_ACPI |
| 9 | bool |
| 10 | select CLKSRC_PROBE |
| 11 | |
| 12 | config CLKSRC_PROBE |
| 13 | bool |
| 14 | |
| 15 | config CLKSRC_I8253 |
| 16 | bool |
| 17 | |
| 18 | config CLKEVT_I8253 |
| 19 | bool |
| 20 | |
| 21 | config I8253_LOCK |
| 22 | bool |
| 23 | |
| 24 | config CLKBLD_I8253 |
| 25 | def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK |
| 26 | |
| 27 | config CLKSRC_MMIO |
| 28 | bool |
| 29 | |
| 30 | config DIGICOLOR_TIMER |
| 31 | bool |
| 32 | |
| 33 | config DW_APB_TIMER |
| 34 | bool |
| 35 | |
| 36 | config DW_APB_TIMER_OF |
| 37 | bool |
| 38 | select DW_APB_TIMER |
| 39 | select CLKSRC_OF |
| 40 | |
| 41 | config ROCKCHIP_TIMER |
| 42 | bool |
| 43 | select CLKSRC_OF |
| 44 | |
| 45 | config ARMADA_370_XP_TIMER |
| 46 | bool |
| 47 | select CLKSRC_OF |
| 48 | |
| 49 | config MESON6_TIMER |
| 50 | bool |
| 51 | select CLKSRC_MMIO |
| 52 | |
| 53 | config ORION_TIMER |
| 54 | select CLKSRC_OF |
| 55 | select CLKSRC_MMIO |
| 56 | bool |
| 57 | |
| 58 | config SUN4I_TIMER |
| 59 | select CLKSRC_MMIO |
| 60 | bool |
| 61 | |
| 62 | config SUN5I_HSTIMER |
| 63 | select CLKSRC_MMIO |
| 64 | bool |
| 65 | |
| 66 | config TEGRA_TIMER |
| 67 | bool |
| 68 | |
| 69 | config VT8500_TIMER |
| 70 | bool |
| 71 | |
| 72 | config CADENCE_TTC_TIMER |
| 73 | bool |
| 74 | |
| 75 | config ASM9260_TIMER |
| 76 | bool |
| 77 | select CLKSRC_MMIO |
| 78 | select CLKSRC_OF |
| 79 | |
| 80 | config CLKSRC_NOMADIK_MTU |
| 81 | bool |
| 82 | depends on (ARCH_NOMADIK || ARCH_U8500) |
| 83 | select CLKSRC_MMIO |
| 84 | help |
| 85 | Support for Multi Timer Unit. MTU provides access |
| 86 | to multiple interrupt generating programmable |
| 87 | 32-bit free running decrementing counters. |
| 88 | |
| 89 | config CLKSRC_NOMADIK_MTU_SCHED_CLOCK |
| 90 | bool |
| 91 | depends on CLKSRC_NOMADIK_MTU |
| 92 | help |
| 93 | Use the Multi Timer Unit as the sched_clock. |
| 94 | |
| 95 | config CLKSRC_DBX500_PRCMU |
| 96 | bool "Clocksource PRCMU Timer" |
| 97 | depends on UX500_SOC_DB8500 |
| 98 | default y |
| 99 | help |
| 100 | Use the always on PRCMU Timer as clocksource |
| 101 | |
| 102 | config CLKSRC_DBX500_PRCMU_SCHED_CLOCK |
| 103 | bool "Clocksource PRCMU Timer sched_clock" |
| 104 | depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK) |
| 105 | default y |
| 106 | help |
| 107 | Use the always on PRCMU Timer as sched_clock |
| 108 | |
| 109 | config CLKSRC_EFM32 |
| 110 | bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 |
| 111 | depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) |
| 112 | select CLKSRC_MMIO |
| 113 | default ARCH_EFM32 |
| 114 | help |
| 115 | Support to use the timers of EFM32 SoCs as clock source and clock |
| 116 | event device. |
| 117 | |
| 118 | config CLKSRC_LPC32XX |
| 119 | bool |
| 120 | select CLKSRC_MMIO |
| 121 | select CLKSRC_OF |
| 122 | |
| 123 | config CLKSRC_PISTACHIO |
| 124 | bool |
| 125 | select CLKSRC_OF |
| 126 | |
| 127 | config CLKSRC_TI_32K |
| 128 | bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST |
| 129 | depends on GENERIC_SCHED_CLOCK |
| 130 | select CLKSRC_OF if OF |
| 131 | help |
| 132 | This option enables support for Texas Instruments 32.768 Hz clocksource |
| 133 | available on many OMAP-like platforms. |
| 134 | |
| 135 | config CLKSRC_STM32 |
| 136 | bool "Clocksource for STM32 SoCs" if !ARCH_STM32 |
| 137 | depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST) |
| 138 | select CLKSRC_MMIO |
| 139 | |
| 140 | config ARM_ARCH_TIMER |
| 141 | bool |
| 142 | select CLKSRC_OF if OF |
| 143 | select CLKSRC_ACPI if ACPI |
| 144 | |
| 145 | config ARM_ARCH_TIMER_EVTSTREAM |
| 146 | bool "Support for ARM architected timer event stream generation" |
| 147 | default y if ARM_ARCH_TIMER |
| 148 | depends on ARM_ARCH_TIMER |
| 149 | help |
| 150 | This option enables support for event stream generation based on |
| 151 | the ARM architected timer. It is used for waking up CPUs executing |
| 152 | the wfe instruction at a frequency represented as a power-of-2 |
| 153 | divisor of the clock rate. |
| 154 | The main use of the event stream is wfe-based timeouts of userspace |
| 155 | locking implementations. It might also be useful for imposing timeout |
| 156 | on wfe to safeguard against any programming errors in case an expected |
| 157 | event is not generated. |
| 158 | This must be disabled for hardware validation purposes to detect any |
| 159 | hardware anomalies of missing events. |
| 160 | |
| 161 | config ARM_ARCH_TIMER_VCT_ACCESS |
| 162 | bool "Support for ARM architected timer virtual counter access in userspace" |
| 163 | default !ARM64 |
| 164 | depends on ARM_ARCH_TIMER |
| 165 | help |
| 166 | This option enables support for reading the ARM architected timer's |
| 167 | virtual counter in userspace. |
| 168 | |
| 169 | config ARM_GLOBAL_TIMER |
| 170 | bool |
| 171 | select CLKSRC_OF if OF |
| 172 | help |
| 173 | This options enables support for the ARM global timer unit |
| 174 | |
| 175 | config ARM_TIMER_SP804 |
| 176 | bool "Support for Dual Timer SP804 module" |
| 177 | depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP |
| 178 | select CLKSRC_MMIO |
| 179 | select CLKSRC_OF if OF |
| 180 | |
| 181 | config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK |
| 182 | bool |
| 183 | depends on ARM_GLOBAL_TIMER |
| 184 | default y |
| 185 | help |
| 186 | Use ARM global timer clock source as sched_clock |
| 187 | |
| 188 | config ARMV7M_SYSTICK |
| 189 | bool |
| 190 | select CLKSRC_OF if OF |
| 191 | select CLKSRC_MMIO |
| 192 | help |
| 193 | This options enables support for the ARMv7M system timer unit |
| 194 | |
| 195 | config ATMEL_PIT |
| 196 | select CLKSRC_OF if OF |
| 197 | def_bool SOC_AT91SAM9 || SOC_SAMA5 |
| 198 | |
| 199 | config ATMEL_ST |
| 200 | bool |
| 201 | select CLKSRC_OF |
| 202 | select MFD_SYSCON |
| 203 | |
| 204 | config CLKSRC_METAG_GENERIC |
| 205 | def_bool y if METAG |
| 206 | help |
| 207 | This option enables support for the Meta per-thread timers. |
| 208 | |
| 209 | config CLKSRC_EXYNOS_MCT |
| 210 | def_bool y if ARCH_EXYNOS |
| 211 | help |
| 212 | Support for Multi Core Timer controller on Exynos SoCs. |
| 213 | |
| 214 | config CLKSRC_SAMSUNG_PWM |
| 215 | bool |
| 216 | help |
| 217 | This is a new clocksource driver for the PWM timer found in |
| 218 | Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver |
| 219 | for all devicetree enabled platforms. This driver will be |
| 220 | needed only on systems that do not have the Exynos MCT available. |
| 221 | |
| 222 | config FSL_FTM_TIMER |
| 223 | bool |
| 224 | help |
| 225 | Support for Freescale FlexTimer Module (FTM) timer. |
| 226 | |
| 227 | config VF_PIT_TIMER |
| 228 | bool |
| 229 | help |
| 230 | Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. |
| 231 | |
| 232 | config SYS_SUPPORTS_SH_CMT |
| 233 | bool |
| 234 | |
| 235 | config MTK_TIMER |
| 236 | select CLKSRC_OF |
| 237 | select CLKSRC_MMIO |
| 238 | bool |
| 239 | |
| 240 | config SYS_SUPPORTS_SH_MTU2 |
| 241 | bool |
| 242 | |
| 243 | config SYS_SUPPORTS_SH_TMU |
| 244 | bool |
| 245 | |
| 246 | config SYS_SUPPORTS_EM_STI |
| 247 | bool |
| 248 | |
| 249 | config SH_TIMER_CMT |
| 250 | bool "Renesas CMT timer driver" if COMPILE_TEST |
| 251 | depends on GENERIC_CLOCKEVENTS |
| 252 | depends on HAS_IOMEM |
| 253 | default SYS_SUPPORTS_SH_CMT |
| 254 | help |
| 255 | This enables build of a clocksource and clockevent driver for |
| 256 | the Compare Match Timer (CMT) hardware available in 16/32/48-bit |
| 257 | variants on a wide range of Mobile and Automotive SoCs from Renesas. |
| 258 | |
| 259 | config SH_TIMER_MTU2 |
| 260 | bool "Renesas MTU2 timer driver" if COMPILE_TEST |
| 261 | depends on GENERIC_CLOCKEVENTS |
| 262 | depends on HAS_IOMEM |
| 263 | default SYS_SUPPORTS_SH_MTU2 |
| 264 | help |
| 265 | This enables build of a clockevent driver for the Multi-Function |
| 266 | Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. |
| 267 | This hardware comes with 16 bit-timer registers. |
| 268 | |
| 269 | config SH_TIMER_TMU |
| 270 | bool "Renesas TMU timer driver" if COMPILE_TEST |
| 271 | depends on GENERIC_CLOCKEVENTS |
| 272 | depends on HAS_IOMEM |
| 273 | default SYS_SUPPORTS_SH_TMU |
| 274 | help |
| 275 | This enables build of a clocksource and clockevent driver for |
| 276 | the 32-bit Timer Unit (TMU) hardware available on a wide range |
| 277 | SoCs from Renesas. |
| 278 | |
| 279 | config EM_TIMER_STI |
| 280 | bool "Renesas STI timer driver" if COMPILE_TEST |
| 281 | depends on GENERIC_CLOCKEVENTS && HAS_IOMEM |
| 282 | default SYS_SUPPORTS_EM_STI |
| 283 | help |
| 284 | This enables build of a clocksource and clockevent driver for |
| 285 | the 48-bit System Timer (STI) hardware available on a SoCs |
| 286 | such as EMEV2 from former NEC Electronics. |
| 287 | |
| 288 | config CLKSRC_QCOM |
| 289 | bool |
| 290 | |
| 291 | config CLKSRC_VERSATILE |
| 292 | bool "ARM Versatile (Express) reference platforms clock source" |
| 293 | depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET |
| 294 | select CLKSRC_OF |
| 295 | default y if MFD_VEXPRESS_SYSREG |
| 296 | help |
| 297 | This option enables clock source based on free running |
| 298 | counter available in the "System Registers" block of |
| 299 | ARM Versatile, RealView and Versatile Express reference |
| 300 | platforms. |
| 301 | |
| 302 | config CLKSRC_MIPS_GIC |
| 303 | bool |
| 304 | depends on MIPS_GIC |
| 305 | select CLKSRC_OF |
| 306 | |
| 307 | config CLKSRC_TANGO_XTAL |
| 308 | bool |
| 309 | select CLKSRC_OF |
| 310 | |
| 311 | config CLKSRC_PXA |
| 312 | def_bool y if ARCH_PXA || ARCH_SA1100 |
| 313 | select CLKSRC_OF if OF |
| 314 | help |
| 315 | This enables OST0 support available on PXA and SA-11x0 |
| 316 | platforms. |
| 317 | |
| 318 | config H8300_TMR16 |
| 319 | bool |
| 320 | |
| 321 | config H8300_TPU |
| 322 | bool |
| 323 | |
| 324 | config CLKSRC_IMX_GPT |
| 325 | bool "Clocksource using i.MX GPT" if COMPILE_TEST |
| 326 | depends on ARM && CLKDEV_LOOKUP |
| 327 | select CLKSRC_MMIO |
| 328 | |
| 329 | config CLKSRC_ST_LPC |
| 330 | bool |
| 331 | depends on ARCH_STI |
| 332 | select CLKSRC_OF if OF |
| 333 | help |
| 334 | Enable this option to use the Low Power controller timer |
| 335 | as clocksource. |
| 336 | |
| 337 | endmenu |