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2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d 
 kernel/drivers/clocksource/Kconfig
....@@ -1,3 +1,4 @@
1
+# SPDX-License-Identifier: GPL-2.0-only
12 menu "Clock Source drivers"
23 	depends on GENERIC_CLOCKEVENTS
34 
....@@ -43,6 +44,11 @@
4344 	help
4445 	  Enables the support for the BCM Kona mobile timer driver.
4546 
47
+config DAVINCI_TIMER
48
+	bool "Texas Instruments DaVinci timer driver" if COMPILE_TEST
49
+	help
50
+	  Enables the support for the TI DaVinci timer driver.
51
+
4652 config DIGICOLOR_TIMER
4753 	bool "Digicolor timer driver" if COMPILE_TEST
4854 	select CLKSRC_MMIO
....@@ -70,13 +76,23 @@
7076 	  Enables support for the Faraday Technology timer block
7177 	  FTTMR010.
7278 
79
+config IXP4XX_TIMER
80
+	bool "Intel XScale IXP4xx timer driver" if COMPILE_TEST
81
+	depends on HAS_IOMEM
82
+	select CLKSRC_MMIO
83
+	select TIMER_OF if OF
84
+	help
85
+	  Enables support for the Intel XScale IXP4xx SoC timer.
86
+
7387 config ROCKCHIP_TIMER
74
-	bool "Rockchip timer driver" if COMPILE_TEST
88
+	tristate "Rockchip timer driver"
89
+	default ARCH_ROCKCHIP
90
+	depends on ARCH_ROCKCHIP || COMPILE_TEST
7591 	depends on ARM || ARM64
7692 	select TIMER_OF
7793 	select CLKSRC_MMIO
7894 	help
79
-	  Enables the support for the rockchip timer driver.
95
+	  Enables the support for the Rockchip timer driver.
8096 
8197 config ARMADA_370_XP_TIMER
8298 	bool "Armada 370 and XP timer driver" if COMPILE_TEST
....@@ -106,8 +122,15 @@
106122 	help
107123 	  Enables the support for the Actions Semi Owl timer driver.
108124 
125
+config RDA_TIMER
126
+	bool "RDA timer driver" if COMPILE_TEST
127
+	select CLKSRC_MMIO
128
+	select TIMER_OF
129
+	help
130
+	  Enables the support for the RDA Micro timer driver.
131
+
109132 config SUN4I_TIMER
110
-	bool "Sun4i timer driver" if COMPILE_TEST
133
+	bool "Sun4i timer driver"
111134 	depends on HAS_IOMEM
112135 	select CLKSRC_MMIO
113136 	select TIMER_OF
....@@ -124,7 +147,8 @@
124147 config TEGRA_TIMER
125148 	bool "Tegra timer driver" if COMPILE_TEST
126149 	select CLKSRC_MMIO
127
-	depends on ARM
150
+	select TIMER_OF
151
+	depends on ARCH_TEGRA || COMPILE_TEST
128152 	help
129153 	  Enables support for the Tegra driver.
130154 
....@@ -141,13 +165,13 @@
141165 	select CLKSRC_MMIO
142166 	help
143167 	  Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture,
144
-	  While TIMER0 serves as clockevent and TIMER1 serves as clocksource.
168
+	  where TIMER0 serves as clockevent and TIMER1 serves as clocksource.
145169 
146170 config CADENCE_TTC_TIMER
147171 	bool "Cadence TTC timer driver" if COMPILE_TEST
148172 	depends on COMMON_CLK
149173 	help
150
-	  Enables support for the cadence ttc driver.
174
+	  Enables support for the Cadence TTC driver.
151175 
152176 config ASM9260_TIMER
153177 	bool "ASM9260 timer driver" if COMPILE_TEST
....@@ -165,20 +189,14 @@
165189 	  to multiple interrupt generating programmable
166190 	  32-bit free running decrementing counters.
167191 
168
-config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
169
-	bool
170
-	depends on CLKSRC_NOMADIK_MTU
171
-	help
172
-	  Use the Multi Timer Unit as the sched_clock.
173
-
174192 config CLKSRC_DBX500_PRCMU
175193 	bool "Clocksource PRCMU Timer" if COMPILE_TEST
176194 	depends on HAS_IOMEM
177195 	help
178
-	  Use the always on PRCMU Timer as clocksource
196
+	  Use the always on PRCMU Timer as clocksource.
179197 
180198 config CLPS711X_TIMER
181
-	bool "Cirrus logic timer driver" if COMPILE_TEST
199
+	bool "Cirrus Logic timer driver" if COMPILE_TEST
182200 	select CLKSRC_MMIO
183201 	help
184202 	  Enables support for the Cirrus Logic PS711 timer.
....@@ -190,11 +208,11 @@
190208 	  Enables support for the Atlas7 timer.
191209 
192210 config MXS_TIMER
193
-	bool "Mxs timer driver" if COMPILE_TEST
211
+	bool "MXS timer driver" if COMPILE_TEST
194212 	select CLKSRC_MMIO
195213 	select STMP_DEVICE
196214 	help
197
-	  Enables support for the Mxs timer.
215
+	  Enables support for the MXS timer.
198216 
199217 config PRIMA2_TIMER
200218 	bool "Prima2 timer driver" if COMPILE_TEST
....@@ -223,17 +241,10 @@
223241 	  Enables support for the Keystone timer.
224242 
225243 config INTEGRATOR_AP_TIMER
226
-	bool "Integrator-ap timer driver" if COMPILE_TEST
244
+	bool "Integrator-AP timer driver" if COMPILE_TEST
227245 	select CLKSRC_MMIO
228246 	help
229
-	  Enables support for the Integrator-ap timer.
230
-
231
-config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
232
-	bool "Clocksource PRCMU Timer sched_clock"
233
-	depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
234
-	default y
235
-	help
236
-	  Use the always on PRCMU Timer as sched_clock
247
+	  Enables support for the Integrator-AP timer.
237248 
238249 config CLKSRC_EFM32
239250 	bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
....@@ -275,14 +286,18 @@
275286 	select TIMER_OF if OF
276287 	help
277288 	  NPS400 clocksource support.
278
-	  Got 64 bit counter with update rate up to 1000MHz.
279
-	  This counter is accessed via couple of 32 bit memory mapped registers.
289
+	  It has a 64-bit counter with update rate up to 1000MHz.
290
+	  This counter is accessed via couple of 32-bit memory-mapped registers.
280291 
281292 config CLKSRC_STM32
282293 	bool "Clocksource for STM32 SoCs" if !ARCH_STM32
283294 	depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
284295 	select CLKSRC_MMIO
285296 	select TIMER_OF
297
+
298
+config CLKSRC_STM32_LP
299
+	bool "Low power clocksource for STM32 SoCs"
300
+	depends on MFD_STM32_LPTIMER || COMPILE_TEST
286301 
287302 config CLKSRC_MPS2
288303 	bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
....@@ -297,14 +312,14 @@
297312 	help
298313 	  These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
299314 	  (ARC700 as well as ARC HS38).
300
-	  TIMER0 serves as clockevent while TIMER1 provides clocksource
315
+	  TIMER0 serves as clockevent while TIMER1 provides clocksource.
301316 
302317 config ARC_TIMERS_64BIT
303318 	bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
304319 	depends on ARC_TIMERS
305320 	select TIMER_OF
306321 	help
307
-	  This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP)
322
+	  This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP).
308323 	  RTC is implemented inside the core, while GFRC sits outside the core in
309324 	  ARConnect IP block. Driver automatically picks one of them for clocksource
310325 	  as appropriate.
....@@ -382,10 +397,10 @@
382397 	select TIMER_OF if OF
383398 	depends on ARM
384399 	help
385
-	  This options enables support for the ARM global timer unit
400
+	  This option enables support for the ARM global timer unit.
386401 
387402 config ARM_TIMER_SP804
388
-	bool "Support for Dual Timer SP804 module"
403
+	bool "Support for Dual Timer SP804 module" if COMPILE_TEST
389404 	depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
390405 	select CLKSRC_MMIO
391406 	select TIMER_OF if OF
....@@ -395,21 +410,21 @@
395410 	depends on ARM_GLOBAL_TIMER
396411 	default y
397412 	help
398
-	 Use ARM global timer clock source as sched_clock
413
+	  Use ARM global timer clock source as sched_clock.
399414 
400415 config ARMV7M_SYSTICK
401416 	bool "Support for the ARMv7M system time" if COMPILE_TEST
402417 	select TIMER_OF if OF
403418 	select CLKSRC_MMIO
404419 	help
405
-	  This options enables support for the ARMv7M system timer unit
420
+	  This option enables support for the ARMv7M system timer unit.
406421 
407422 config ATMEL_PIT
408
-	bool "Microchip ARM Periodic Interval Timer (PIT)" if COMPILE_TEST
423
+	bool "Atmel PIT support" if COMPILE_TEST
424
+	depends on HAS_IOMEM
409425 	select TIMER_OF if OF
410426 	help
411
-	  This enables build of clocksource and clockevent driver for
412
-	  the integrated PIT in Microchip ARM SoCs.
427
+	  Support for the Periodic Interval Timer found on Atmel SoCs.
413428 
414429 config ATMEL_ST
415430 	bool "Atmel ST timer support" if COMPILE_TEST
....@@ -419,13 +434,12 @@
419434 	help
420435 	  Support for the Atmel ST timer.
421436 
422
-config ATMEL_ARM_TCB_CLKSRC
423
-	bool "Microchip ARM TC Block" if COMPILE_TEST
424
-	select REGMAP_MMIO
425
-	depends on GENERIC_CLOCKEVENTS
437
+config ATMEL_TCB_CLKSRC
438
+	bool "Atmel TC Block timer driver" if COMPILE_TEST
439
+	depends on ARM && HAS_IOMEM
440
+	select TIMER_OF if OF
426441 	help
427
-	  This enables build of clocksource and clockevent driver for
428
-	  the integrated Timer Counter Blocks in Microchip ARM SoCs.
442
+	  Support for Timer Counter Blocks on Atmel SoCs.
429443 
430444 config CLKSRC_EXYNOS_MCT
431445 	bool "Exynos multi core timer driver" if COMPILE_TEST
....@@ -453,7 +467,7 @@
453467 	bool
454468 	select CLKSRC_MMIO
455469 	help
456
-	  Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
470
+	  Support for Periodic Interrupt Timer on Freescale Vybrid Family SoCs.
457471 
458472 config OXNAS_RPS_TIMER
459473 	bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
....@@ -463,10 +477,10 @@
463477 	  This enables support for the Oxford Semiconductor OXNAS RPS timers.
464478 
465479 config SYS_SUPPORTS_SH_CMT
466
-        bool
480
+	bool
467481 
468482 config MTK_TIMER
469
-	bool "Mediatek timer driver" if COMPILE_TEST
483
+	bool "Mediatek timer driver"
470484 	depends on HAS_IOMEM
471485 	select TIMER_OF
472486 	select CLKSRC_MMIO
....@@ -483,13 +497,13 @@
483497 	  Enables support for the Spreadtrum timer driver.
484498 
485499 config SYS_SUPPORTS_SH_MTU2
486
-        bool
500
+	bool
487501 
488502 config SYS_SUPPORTS_SH_TMU
489
-        bool
503
+	bool
490504 
491505 config SYS_SUPPORTS_EM_STI
492
-        bool
506
+	bool
493507 
494508 config CLKSRC_JCORE_PIT
495509 	bool "J-Core PIT timer driver" if COMPILE_TEST
....@@ -516,11 +530,12 @@
516530 	help
517531 	  This enables build of a clockevent driver for the Multi-Function
518532 	  Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
519
-	  This hardware comes with 16 bit-timer registers.
533
+	  This hardware comes with 16-bit timer registers.
520534 
521535 config RENESAS_OSTM
522536 	bool "Renesas OSTM timer driver" if COMPILE_TEST
523537 	select CLKSRC_MMIO
538
+	select TIMER_OF
524539 	help
525540 	  Enables the support for the Renesas OSTM.
526541 
....@@ -554,16 +569,16 @@
554569 	bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
555570 	depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
556571 	select TIMER_OF
557
-	default y if MFD_VEXPRESS_SYSREG
572
+	default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM
558573 	help
559574 	  This option enables clock source based on free running
560575 	  counter available in the "System Registers" block of
561
-	  ARM Versatile, RealView and Versatile Express reference
562
-	  platforms.
576
+	  ARM Versatile and Versatile Express reference platforms.
563577 
564578 config CLKSRC_MIPS_GIC
565579 	bool
566580 	depends on MIPS_GIC
581
+	select CLOCKSOURCE_WATCHDOG
567582 	select TIMER_OF
568583 
569584 config CLKSRC_TANGO_XTAL
....@@ -572,7 +587,7 @@
572587 	select TIMER_OF
573588 	select CLKSRC_MMIO
574589 	help
575
-	  This enables the clocksource for Tango SoC
590
+	  This enables the clocksource for Tango SoC.
576591 
577592 config CLKSRC_PXA
578593 	bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
....@@ -583,37 +598,45 @@
583598 	  platforms.
584599 
585600 config H8300_TMR8
586
-        bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
587
-        depends on HAS_IOMEM
601
+	bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
602
+	depends on HAS_IOMEM
588603 	help
589604 	  This enables the 8 bits timer for the H8300 platform.
590605 
591606 config H8300_TMR16
592
-        bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
593
-        depends on HAS_IOMEM
607
+	bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
608
+	depends on HAS_IOMEM
594609 	help
595610 	  This enables the 16 bits timer for the H8300 platform with the
596
-	  H83069 cpu.
611
+	  H83069 CPU.
597612 
598613 config H8300_TPU
599
-        bool "Clocksource for the H8300 platform" if COMPILE_TEST
600
-        depends on HAS_IOMEM
614
+	bool "Clocksource for the H8300 platform" if COMPILE_TEST
615
+	depends on HAS_IOMEM
601616 	help
602617 	  This enables the clocksource for the H8300 platform with the
603
-	  H8S2678 cpu.
618
+	  H8S2678 CPU.
604619 
605620 config CLKSRC_IMX_GPT
606621 	bool "Clocksource using i.MX GPT" if COMPILE_TEST
607
-	depends on ARM && CLKDEV_LOOKUP
622
+	depends on (ARM || ARM64) && CLKDEV_LOOKUP
608623 	select CLKSRC_MMIO
609624 
610625 config CLKSRC_IMX_TPM
611626 	bool "Clocksource using i.MX TPM" if COMPILE_TEST
612
-	depends on ARM && CLKDEV_LOOKUP
627
+	depends on (ARM || ARM64) && CLKDEV_LOOKUP
613628 	select CLKSRC_MMIO
629
+	select TIMER_OF
614630 	help
615631 	  Enable this option to use IMX Timer/PWM Module (TPM) timer as
616632 	  clocksource.
633
+
634
+config TIMER_IMX_SYS_CTR
635
+	bool "i.MX system counter timer" if COMPILE_TEST
636
+	select TIMER_OF
637
+	help
638
+	  Enable this option to use i.MX system counter timer as a
639
+	  clockevent.
617640 
618641 config CLKSRC_ST_LPC
619642 	bool "Low power clocksource found in the LPC" if COMPILE_TEST
....@@ -634,9 +657,8 @@
634657 	  This option enables support for the Andestech ATCPIT100 timers.
635658 
636659 config RISCV_TIMER
637
-	bool "Timer for the RISC-V platform"
638
-	depends on RISCV
639
-	default y
660
+	bool "Timer for the RISC-V platform" if COMPILE_TEST
661
+	depends on GENERIC_SCHED_CLOCK && RISCV && RISCV_SBI
640662 	select TIMER_PROBE
641663 	select TIMER_OF
642664 	help
....@@ -644,4 +666,80 @@
644666 	  is accessed via both the SBI and the rdcycle instruction.  This is
645667 	  required for all RISC-V systems.
646668 
669
+config CLINT_TIMER
670
+	bool "CLINT Timer for the RISC-V platform" if COMPILE_TEST
671
+	depends on GENERIC_SCHED_CLOCK && RISCV
672
+	select TIMER_PROBE
673
+	select TIMER_OF
674
+	help
675
+	  This option enables the CLINT timer for RISC-V systems.  The CLINT
676
+	  driver is usually used for NoMMU RISC-V systems.
677
+
678
+config CSKY_MP_TIMER
679
+	bool "SMP Timer for the C-SKY platform" if COMPILE_TEST
680
+	depends on CSKY
681
+	select TIMER_OF
682
+	help
683
+	  Say yes here to enable C-SKY SMP timer driver used for C-SKY SMP
684
+	  system.
685
+	  csky,mptimer is not only used in SMP system, it also could be used in
686
+	  single core system. It's not a mmio reg and it uses mtcr/mfcr instruction.
687
+
688
+config GX6605S_TIMER
689
+	bool "Gx6605s SOC system timer driver" if COMPILE_TEST
690
+	depends on CSKY
691
+	select CLKSRC_MMIO
692
+	select TIMER_OF
693
+	help
694
+	  This option enables support for gx6605s SOC's timer.
695
+
696
+config MILBEAUT_TIMER
697
+	bool "Milbeaut timer driver" if COMPILE_TEST
698
+	depends on OF
699
+	depends on ARM
700
+	select TIMER_OF
701
+	select CLKSRC_MMIO
702
+	help
703
+	  Enables the support for Milbeaut timer driver.
704
+
705
+config INGENIC_TIMER
706
+	bool "Clocksource/timer using the TCU in Ingenic JZ SoCs"
707
+	default MACH_INGENIC
708
+	depends on MIPS || COMPILE_TEST
709
+	depends on COMMON_CLK
710
+	select MFD_SYSCON
711
+	select TIMER_OF
712
+	select IRQ_DOMAIN
713
+	help
714
+	  Support for the timer/counter unit of the Ingenic JZ SoCs.
715
+
716
+config INGENIC_SYSOST
717
+	bool "Clocksource/timer using the SYSOST in Ingenic X SoCs"
718
+	depends on MIPS || COMPILE_TEST
719
+	depends on COMMON_CLK
720
+	select MFD_SYSCON
721
+	select TIMER_OF
722
+	select IRQ_DOMAIN
723
+	help
724
+	  Support for the SYSOST of the Ingenic X Series SoCs.
725
+
726
+config INGENIC_OST
727
+	bool "Clocksource using the OST in Ingenic JZ SoCs"
728
+	depends on MIPS || COMPILE_TEST
729
+	depends on COMMON_CLK
730
+	select MFD_SYSCON
731
+	help
732
+	  Support for the Operating System Timer of the Ingenic JZ SoCs.
733
+
734
+config MICROCHIP_PIT64B
735
+	bool "Microchip PIT64B support"
736
+	depends on OF || COMPILE_TEST
737
+	select CLKSRC_MMIO
738
+	select TIMER_OF
739
+	help
740
+	  This option enables Microchip PIT64B timer for Atmel
741
+	  based system. It supports the oneshot, the periodic
742
+	  modes and high resolution. It is used as a clocksource
743
+	  and a clockevent.
744
+
647745 endmenu