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1# SPDX-License-Identifier: GPL-2.0-only
2
3#
4# Watchdog device configuration
5#
6
7menuconfig WATCHDOG
8 bool "Watchdog Timer Support"
9 help
10 If you say Y here (and to one of the following options) and create a
11 character special file /dev/watchdog with major number 10 and minor
12 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
13 subsequently opening the file and then failing to write to it for
14 longer than 1 minute will result in rebooting the machine. This
15 could be useful for a networked machine that needs to come back
16 on-line as fast as possible after a lock-up. There's both a watchdog
17 implementation entirely in software (which can sometimes fail to
18 reboot the machine) and a driver for hardware watchdog boards, which
19 are more robust and can also keep track of the temperature inside
20 your computer. For details, read
21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
22
23 The watchdog is usually used together with the watchdog daemon
24 which is available from
25 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
26 also monitor NFS connections and can reboot the machine when the process
27 table is full.
28
29 If unsure, say N.
30
31if WATCHDOG
32
33config WATCHDOG_CORE
34 tristate "WatchDog Timer Driver Core"
35 help
36 Say Y here if you want to use the new watchdog timer driver core.
37 This driver provides a framework for all watchdog timer drivers
38 and gives them the /dev/watchdog interface (and later also the
39 sysfs interface).
40
41config WATCHDOG_NOWAYOUT
42 bool "Disable watchdog shutdown on close"
43 help
44 The default watchdog behaviour (which you get if you say N here) is
45 to stop the timer if the process managing it closes the file
46 /dev/watchdog. It's always remotely possible that this process might
47 get killed. If you say Y here, the watchdog cannot be stopped once
48 it has been started.
49
50config WATCHDOG_HANDLE_BOOT_ENABLED
51 bool "Update boot-enabled watchdog until userspace takes over"
52 default y
53 help
54 The default watchdog behaviour (which you get if you say Y here) is
55 to ping watchdog devices that were enabled before the driver has
56 been loaded until control is taken over from userspace using the
57 /dev/watchdog file. If you say N here, the kernel will not update
58 the watchdog on its own. Thus if your userspace does not start fast
59 enough your device will reboot.
60
61config WATCHDOG_OPEN_TIMEOUT
62 int "Timeout value for opening watchdog device"
63 default 0
64 help
65 The maximum time, in seconds, for which the watchdog framework takes
66 care of pinging a hardware watchdog. A value of 0 means infinite. The
67 value set here can be overridden by the commandline parameter
68 "watchdog.open_timeout".
69
70config WATCHDOG_SYSFS
71 bool "Read different watchdog information through sysfs"
72 help
73 Say Y here if you want to enable watchdog device status read through
74 sysfs attributes.
75
76comment "Watchdog Pretimeout Governors"
77
78config WATCHDOG_PRETIMEOUT_GOV
79 bool "Enable watchdog pretimeout governors"
80 depends on WATCHDOG_CORE
81 help
82 The option allows to select watchdog pretimeout governors.
83
84config WATCHDOG_PRETIMEOUT_GOV_SEL
85 tristate
86 depends on WATCHDOG_PRETIMEOUT_GOV
87 default m
88 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
89
90if WATCHDOG_PRETIMEOUT_GOV
91
92config WATCHDOG_PRETIMEOUT_GOV_NOOP
93 tristate "Noop watchdog pretimeout governor"
94 depends on WATCHDOG_CORE
95 default WATCHDOG_CORE
96 help
97 Noop watchdog pretimeout governor, only an informational
98 message is added to kernel log buffer.
99
100config WATCHDOG_PRETIMEOUT_GOV_PANIC
101 tristate "Panic watchdog pretimeout governor"
102 depends on WATCHDOG_CORE
103 default WATCHDOG_CORE
104 help
105 Panic watchdog pretimeout governor, on watchdog pretimeout
106 event put the kernel into panic.
107
108choice
109 prompt "Default Watchdog Pretimeout Governor"
110 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
111 help
112 This option selects a default watchdog pretimeout governor.
113 The governor takes its action, if a watchdog is capable
114 to report a pretimeout event.
115
116config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
117 bool "noop"
118 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
119 help
120 Use noop watchdog pretimeout governor by default. If noop
121 governor is selected by a user, write a short message to
122 the kernel log buffer and don't do any system changes.
123
124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
125 bool "panic"
126 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
127 help
128 Use panic watchdog pretimeout governor by default, if
129 a watchdog pretimeout event happens, consider that
130 a watchdog feeder is dead and reboot is unavoidable.
131
132endchoice
133
134endif # WATCHDOG_PRETIMEOUT_GOV
135
136#
137# General Watchdog drivers
138#
139
140comment "Watchdog Device Drivers"
141
142# Architecture Independent
143
144config SOFT_WATCHDOG
145 tristate "Software watchdog"
146 select WATCHDOG_CORE
147 help
148 A software monitoring watchdog. This will fail to reboot your system
149 from some situations that the hardware watchdog will recover
150 from. Equally it's a lot cheaper to install.
151
152 To compile this driver as a module, choose M here: the
153 module will be called softdog.
154
155config SOFT_WATCHDOG_PRETIMEOUT
156 bool "Software watchdog pretimeout governor support"
157 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
158 help
159 Enable this if you want to use pretimeout governors with the software
160 watchdog. Be aware that governors might affect the watchdog because it
161 is purely software, e.g. the panic governor will stall it!
162
163config BD70528_WATCHDOG
164 tristate "ROHM BD70528 PMIC Watchdog"
165 depends on MFD_ROHM_BD70528
166 select WATCHDOG_CORE
167 help
168 Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
169 cause system reset.
170
171 Say Y here to include support for the ROHM BD70528 watchdog.
172 Alternatively say M to compile the driver as a module,
173 which will be called bd70528_wdt.
174
175config DA9052_WATCHDOG
176 tristate "Dialog DA9052 Watchdog"
177 depends on PMIC_DA9052 || COMPILE_TEST
178 select WATCHDOG_CORE
179 help
180 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
181 cause system reset.
182
183 Say Y here to include support for the DA9052 watchdog.
184 Alternatively say M to compile the driver as a module,
185 which will be called da9052_wdt.
186
187config DA9055_WATCHDOG
188 tristate "Dialog Semiconductor DA9055 Watchdog"
189 depends on MFD_DA9055 || COMPILE_TEST
190 select WATCHDOG_CORE
191 help
192 If you say yes here you get support for watchdog on the Dialog
193 Semiconductor DA9055 PMIC.
194
195 This driver can also be built as a module. If so, the module
196 will be called da9055_wdt.
197
198config DA9063_WATCHDOG
199 tristate "Dialog DA9063 Watchdog"
200 depends on MFD_DA9063 || COMPILE_TEST
201 select WATCHDOG_CORE
202 help
203 Support for the watchdog in the DA9063 PMIC.
204
205 This driver can be built as a module. The module name is da9063_wdt.
206
207config DA9062_WATCHDOG
208 tristate "Dialog DA9062/61 Watchdog"
209 depends on MFD_DA9062 || COMPILE_TEST
210 depends on I2C
211 select WATCHDOG_CORE
212 help
213 Support for the watchdog in the DA9062 and DA9061 PMICs.
214
215 This driver can be built as a module. The module name is da9062_wdt.
216
217config GPIO_WATCHDOG
218 tristate "Watchdog device controlled through GPIO-line"
219 depends on OF_GPIO
220 select WATCHDOG_CORE
221 help
222 If you say yes here you get support for watchdog device
223 controlled through GPIO-line.
224
225config GPIO_WATCHDOG_ARCH_INITCALL
226 bool "Register the watchdog as early as possible"
227 depends on GPIO_WATCHDOG=y
228 help
229 In some situations, the default initcall level (module_init)
230 in not early enough in the boot process to avoid the watchdog
231 to be triggered.
232 If you say yes here, the initcall level would be raised to
233 arch_initcall.
234 If in doubt, say N.
235
236config MENF21BMC_WATCHDOG
237 tristate "MEN 14F021P00 BMC Watchdog"
238 depends on MFD_MENF21BMC || COMPILE_TEST
239 depends on I2C
240 select WATCHDOG_CORE
241 help
242 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
243
244 This driver can also be built as a module. If so the module
245 will be called menf21bmc_wdt.
246
247config MENZ069_WATCHDOG
248 tristate "MEN 16Z069 Watchdog"
249 depends on MCB
250 select WATCHDOG_CORE
251 help
252 Say Y here to include support for the MEN 16Z069 Watchdog.
253
254 This driver can also be built as a module. If so the module
255 will be called menz069_wdt.
256
257config TANGOX_WATCHDOG
258 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
259 select WATCHDOG_CORE
260 depends on ARCH_TANGO || COMPILE_TEST
261 depends on HAS_IOMEM
262 help
263 Support for the watchdog in Sigma Designs SMP86xx (tango3)
264 and SMP87xx (tango4) family chips.
265
266 This driver can be built as a module. The module name is tangox_wdt.
267
268config WDAT_WDT
269 tristate "ACPI Watchdog Action Table (WDAT)"
270 depends on ACPI
271 select WATCHDOG_CORE
272 select ACPI_WATCHDOG
273 help
274 This driver adds support for systems with ACPI Watchdog Action
275 Table (WDAT) table. Servers typically have this but it can be
276 found on some desktop machines as well. This driver will take
277 over the native iTCO watchdog driver found on many Intel CPUs.
278
279 To compile this driver as module, choose M here: the module will
280 be called wdat_wdt.
281
282config WM831X_WATCHDOG
283 tristate "WM831x watchdog"
284 depends on MFD_WM831X
285 select WATCHDOG_CORE
286 help
287 Support for the watchdog in the WM831x AudioPlus PMICs. When
288 the watchdog triggers the system will be reset.
289
290config WM8350_WATCHDOG
291 tristate "WM8350 watchdog"
292 depends on MFD_WM8350
293 select WATCHDOG_CORE
294 help
295 Support for the watchdog in the WM8350 AudioPlus PMIC. When
296 the watchdog triggers the system will be reset.
297
298config XILINX_WATCHDOG
299 tristate "Xilinx Watchdog timer"
300 depends on HAS_IOMEM
301 select WATCHDOG_CORE
302 help
303 Watchdog driver for the xps_timebase_wdt ip core.
304
305 To compile this driver as a module, choose M here: the
306 module will be called of_xilinx_wdt.
307
308config ZIIRAVE_WATCHDOG
309 tristate "Zodiac RAVE Watchdog Timer"
310 depends on I2C
311 select WATCHDOG_CORE
312 help
313 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
314 Processor.
315
316 To compile this driver as a module, choose M here: the
317 module will be called ziirave_wdt.
318
319config RAVE_SP_WATCHDOG
320 tristate "RAVE SP Watchdog timer"
321 depends on RAVE_SP_CORE
322 depends on NVMEM || !NVMEM
323 select WATCHDOG_CORE
324 help
325 Support for the watchdog on RAVE SP device.
326
327config MLX_WDT
328 tristate "Mellanox Watchdog"
329 depends on MELLANOX_PLATFORM
330 select WATCHDOG_CORE
331 select REGMAP
332 help
333 This is the driver for the hardware watchdog on Mellanox systems.
334 If you are going to use it, say Y here, otherwise N.
335 This driver can be used together with the watchdog daemon.
336 It can also watch your kernel to make sure it doesn't freeze,
337 and if it does, it reboots your system after a certain amount of
338 time.
339
340 To compile this driver as a module, choose M here: the
341 module will be called mlx-wdt.
342
343# ALPHA Architecture
344
345# ARM Architecture
346
347config ARM_SP805_WATCHDOG
348 tristate "ARM SP805 Watchdog"
349 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
350 select WATCHDOG_CORE
351 help
352 ARM Primecell SP805 Watchdog timer. This will reboot your system when
353 the timeout is reached.
354
355config ARM_SBSA_WATCHDOG
356 tristate "ARM SBSA Generic Watchdog"
357 depends on ARM64
358 depends on ARM_ARCH_TIMER
359 select WATCHDOG_CORE
360 help
361 ARM SBSA Generic Watchdog has two stage timeouts:
362 the first signal (WS0) is for alerting the system by interrupt,
363 the second one (WS1) is a real hardware reset.
364 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
365
366 This driver can operate ARM SBSA Generic Watchdog as a single stage
367 or a two stages watchdog, it depends on the module parameter "action".
368
369 Note: the maximum timeout in the two stages mode is half of that in
370 the single stage mode.
371
372 To compile this driver as module, choose M here: The module
373 will be called sbsa_gwdt.
374
375config ARMADA_37XX_WATCHDOG
376 tristate "Armada 37xx watchdog"
377 depends on ARCH_MVEBU || COMPILE_TEST
378 select MFD_SYSCON
379 select WATCHDOG_CORE
380 help
381 Say Y here to include support for the watchdog timer found on
382 Marvell Armada 37xx SoCs.
383 To compile this driver as a module, choose M here: the
384 module will be called armada_37xx_wdt.
385
386config ASM9260_WATCHDOG
387 tristate "Alphascale ASM9260 watchdog"
388 depends on MACH_ASM9260 || COMPILE_TEST
389 depends on OF
390 select WATCHDOG_CORE
391 select RESET_CONTROLLER
392 help
393 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
394 system when the timeout is reached.
395
396config AT91RM9200_WATCHDOG
397 tristate "AT91RM9200 watchdog"
398 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
399 help
400 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
401 system when the timeout is reached.
402
403config AT91SAM9X_WATCHDOG
404 tristate "AT91SAM9X / AT91CAP9 watchdog"
405 depends on ARCH_AT91 || COMPILE_TEST
406 select WATCHDOG_CORE
407 help
408 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
409 reboot your system when the timeout is reached.
410
411config SAMA5D4_WATCHDOG
412 tristate "Atmel SAMA5D4 Watchdog Timer"
413 depends on ARCH_AT91 || COMPILE_TEST
414 select WATCHDOG_CORE
415 help
416 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
417 Its Watchdog Timer Mode Register can be written more than once.
418 This will reboot your system when the timeout is reached.
419
420config CADENCE_WATCHDOG
421 tristate "Cadence Watchdog Timer"
422 depends on HAS_IOMEM
423 select WATCHDOG_CORE
424 help
425 Say Y here if you want to include support for the watchdog
426 timer in the Xilinx Zynq.
427
428config 21285_WATCHDOG
429 tristate "DC21285 watchdog"
430 depends on FOOTBRIDGE
431 help
432 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
433 here if you wish to use this. Alternatively say M to compile the
434 driver as a module, which will be called wdt285.
435
436 This driver does not work on all machines. In particular, early CATS
437 boards have hardware problems that will cause the machine to simply
438 lock up if the watchdog fires.
439
440 "If in doubt, leave it out" - say N.
441
442config 977_WATCHDOG
443 tristate "NetWinder WB83C977 watchdog"
444 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
445 help
446 Say Y here to include support for the WB977 watchdog included in
447 NetWinder machines. Alternatively say M to compile the driver as
448 a module, which will be called wdt977.
449
450 Not sure? It's safe to say N.
451
452config FTWDT010_WATCHDOG
453 tristate "Faraday Technology FTWDT010 watchdog"
454 depends on ARM || COMPILE_TEST
455 select WATCHDOG_CORE
456 default ARCH_GEMINI
457 help
458 Say Y here if to include support for the Faraday Technology
459 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
460 family of devices.
461
462 To compile this driver as a module, choose M here: the
463 module will be called ftwdt010_wdt.
464
465config IXP4XX_WATCHDOG
466 tristate "IXP4xx Watchdog"
467 depends on ARCH_IXP4XX
468 help
469 Say Y here if to include support for the watchdog timer
470 in the Intel IXP4xx network processors. This driver can
471 be built as a module by choosing M. The module will
472 be called ixp4xx_wdt.
473
474 Note: The internal IXP4xx watchdog does a soft CPU reset
475 which doesn't reset any peripherals. There are circumstances
476 where the watchdog will fail to reset the board correctly
477 (e.g., if the boot ROM is in an unreadable state).
478
479 Say N if you are unsure.
480
481config HAVE_S3C2410_WATCHDOG
482 bool
483 help
484 This will include watchdog timer support for Samsung SoCs. If
485 you want to include watchdog support for any machine, kindly
486 select this in the respective mach-XXXX/Kconfig file.
487
488config S3C2410_WATCHDOG
489 tristate "S3C2410 Watchdog"
490 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
491 select WATCHDOG_CORE
492 select MFD_SYSCON if ARCH_EXYNOS
493 help
494 Watchdog timer block in the Samsung SoCs. This will reboot
495 the system when the timer expires with the watchdog enabled.
496
497 The driver is limited by the speed of the system's PCLK
498 signal, so with reasonably fast systems (PCLK around 50-66MHz)
499 then watchdog intervals of over approximately 20seconds are
500 unavailable.
501
502 The driver can be built as a module by choosing M, and will
503 be called s3c2410_wdt
504
505config SA1100_WATCHDOG
506 tristate "SA1100/PXA2xx watchdog"
507 depends on ARCH_SA1100 || ARCH_PXA
508 help
509 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
510 reboot your system when timeout is reached.
511
512 NOTE: once enabled, this timer cannot be disabled.
513
514 To compile this driver as a module, choose M here: the
515 module will be called sa1100_wdt.
516
517config DW_WATCHDOG
518 tristate "Synopsys DesignWare watchdog"
519 depends on HAS_IOMEM
520 select WATCHDOG_CORE
521 help
522 Say Y here if to include support for the Synopsys DesignWare
523 watchdog timer found in many chips.
524 To compile this driver as a module, choose M here: the
525 module will be called dw_wdt.
526
527config EP93XX_WATCHDOG
528 tristate "EP93xx Watchdog"
529 depends on ARCH_EP93XX || COMPILE_TEST
530 select WATCHDOG_CORE
531 help
532 Say Y here if to include support for the watchdog timer
533 embedded in the Cirrus Logic EP93xx family of devices.
534
535 To compile this driver as a module, choose M here: the
536 module will be called ep93xx_wdt.
537
538config OMAP_WATCHDOG
539 tristate "OMAP Watchdog"
540 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
541 select WATCHDOG_CORE
542 help
543 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
544 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
545
546config PNX4008_WATCHDOG
547 tristate "LPC32XX Watchdog"
548 depends on ARCH_LPC32XX || COMPILE_TEST
549 select WATCHDOG_CORE
550 help
551 Say Y here if to include support for the watchdog timer
552 in the LPC32XX processor.
553 This driver can be built as a module by choosing M. The module
554 will be called pnx4008_wdt.
555
556 Say N if you are unsure.
557
558config IOP_WATCHDOG
559 tristate "IOP Watchdog"
560 depends on ARCH_IOP13XX
561 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
562 help
563 Say Y here if to include support for the watchdog timer
564 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
565 be built as a module by choosing M. The module will
566 be called iop_wdt.
567
568 Note: The IOP13XX watchdog does an Internal Bus Reset which will
569 affect both cores and the peripherals of the IOP. The ATU-X
570 and/or ATUe configuration registers will remain intact, but if
571 operating as an Root Complex and/or Central Resource, the PCI-X
572 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
573
574config DAVINCI_WATCHDOG
575 tristate "DaVinci watchdog"
576 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
577 select WATCHDOG_CORE
578 help
579 Say Y here if to include support for the watchdog timer
580 in the DaVinci DM644x/DM646x or Keystone processors.
581 To compile this driver as a module, choose M here: the
582 module will be called davinci_wdt.
583
584 NOTE: once enabled, this timer cannot be disabled.
585 Say N if you are unsure.
586
587config K3_RTI_WATCHDOG
588 tristate "Texas Instruments K3 RTI watchdog"
589 depends on ARCH_K3 || COMPILE_TEST
590 select WATCHDOG_CORE
591 help
592 Say Y here if you want to include support for the K3 watchdog
593 timer (RTI module) available in the K3 generation of processors.
594
595config ORION_WATCHDOG
596 tristate "Orion watchdog"
597 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
598 depends on ARM
599 select WATCHDOG_CORE
600 help
601 Say Y here if to include support for the watchdog timer
602 in the Marvell Orion5x and Kirkwood ARM SoCs.
603 To compile this driver as a module, choose M here: the
604 module will be called orion_wdt.
605
606config RN5T618_WATCHDOG
607 tristate "Ricoh RN5T618 watchdog"
608 depends on MFD_RN5T618 || COMPILE_TEST
609 select WATCHDOG_CORE
610 help
611 If you say yes here you get support for watchdog on the Ricoh
612 RN5T618 PMIC.
613
614 This driver can also be built as a module. If so, the module
615 will be called rn5t618_wdt.
616
617config SUNXI_WATCHDOG
618 tristate "Allwinner SoCs watchdog support"
619 depends on ARCH_SUNXI || COMPILE_TEST
620 select WATCHDOG_CORE
621 help
622 Say Y here to include support for the watchdog timer
623 in Allwinner SoCs.
624 To compile this driver as a module, choose M here: the
625 module will be called sunxi_wdt.
626
627config COH901327_WATCHDOG
628 bool "ST-Ericsson COH 901 327 watchdog"
629 depends on ARCH_U300 || (ARM && COMPILE_TEST)
630 default y if MACH_U300
631 select WATCHDOG_CORE
632 help
633 Say Y here to include Watchdog timer support for the
634 watchdog embedded into the ST-Ericsson U300 series platforms.
635 This watchdog is used to reset the system and thus cannot be
636 compiled as a module.
637
638config NPCM7XX_WATCHDOG
639 tristate "Nuvoton NPCM750 watchdog"
640 depends on ARCH_NPCM || COMPILE_TEST
641 default y if ARCH_NPCM7XX
642 select WATCHDOG_CORE
643 help
644 Say Y here to include Watchdog timer support for the
645 watchdog embedded into the NPCM7xx.
646 This watchdog is used to reset the system and thus cannot be
647 compiled as a module.
648
649config TWL4030_WATCHDOG
650 tristate "TWL4030 Watchdog"
651 depends on TWL4030_CORE
652 select WATCHDOG_CORE
653 help
654 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
655 watchdog timer support for TWL4030 chips.
656
657config STMP3XXX_RTC_WATCHDOG
658 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
659 depends on RTC_DRV_STMP || COMPILE_TEST
660 select WATCHDOG_CORE
661 help
662 Say Y here to include support for the watchdog timer inside
663 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
664 To compile this driver as a module, choose M here: the
665 module will be called stmp3xxx_rtc_wdt.
666
667config TS4800_WATCHDOG
668 tristate "TS-4800 Watchdog"
669 depends on HAS_IOMEM && OF
670 depends on SOC_IMX51 || COMPILE_TEST
671 select WATCHDOG_CORE
672 select MFD_SYSCON
673 help
674 Technologic Systems TS-4800 has watchdog timer implemented in
675 an external FPGA. Say Y here if you want to support for the
676 watchdog timer on TS-4800 board.
677
678config TS72XX_WATCHDOG
679 tristate "TS-72XX SBC Watchdog"
680 depends on MACH_TS72XX || COMPILE_TEST
681 select WATCHDOG_CORE
682 help
683 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
684 watchdog timer implemented in a external CPLD chip. Say Y here
685 if you want to support for the watchdog timer on TS-72XX boards.
686
687 To compile this driver as a module, choose M here: the
688 module will be called ts72xx_wdt.
689
690config MAX63XX_WATCHDOG
691 tristate "Max63xx watchdog"
692 depends on HAS_IOMEM
693 select WATCHDOG_CORE
694 help
695 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
696
697config MAX77620_WATCHDOG
698 tristate "Maxim Max77620 Watchdog Timer"
699 depends on MFD_MAX77620 || COMPILE_TEST
700 select WATCHDOG_CORE
701 help
702 This is the driver for the Max77620 watchdog timer.
703 Say 'Y' here to enable the watchdog timer support for
704 MAX77620 chips. To compile this driver as a module,
705 choose M here: the module will be called max77620_wdt.
706
707config IMX2_WDT
708 tristate "IMX2+ Watchdog"
709 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
710 select REGMAP_MMIO
711 select WATCHDOG_CORE
712 help
713 This is the driver for the hardware watchdog
714 on the Freescale IMX2 and later processors.
715 If you have one of these processors and wish to have
716 watchdog support enabled, say Y, otherwise say N.
717
718 To compile this driver as a module, choose M here: the
719 module will be called imx2_wdt.
720
721config IMX_SC_WDT
722 tristate "IMX SC Watchdog"
723 depends on HAVE_ARM_SMCCC
724 depends on IMX_SCU
725 select WATCHDOG_CORE
726 help
727 This is the driver for the system controller watchdog
728 on the NXP i.MX SoCs with system controller inside, the
729 watchdog driver will call ARM SMC API and trap into
730 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
731 will request system controller to execute the operations.
732 If you have one of these processors and wish to have
733 watchdog support enabled, say Y, otherwise say N.
734
735 To compile this driver as a module, choose M here: the
736 module will be called imx_sc_wdt.
737
738config IMX7ULP_WDT
739 tristate "IMX7ULP Watchdog"
740 depends on ARCH_MXC || COMPILE_TEST
741 select WATCHDOG_CORE
742 help
743 This is the driver for the hardware watchdog on the Freescale
744 IMX7ULP and later processors. If you have one of these
745 processors and wish to have watchdog support enabled,
746 say Y, otherwise say N.
747
748 To compile this driver as a module, choose M here: the
749 module will be called imx7ulp_wdt.
750
751config UX500_WATCHDOG
752 tristate "ST-Ericsson Ux500 watchdog"
753 depends on MFD_DB8500_PRCMU
754 select WATCHDOG_CORE
755 default y
756 help
757 Say Y here to include Watchdog timer support for the watchdog
758 existing in the prcmu of ST-Ericsson Ux500 series platforms.
759
760 To compile this driver as a module, choose M here: the
761 module will be called ux500_wdt.
762
763config RETU_WATCHDOG
764 tristate "Retu watchdog"
765 depends on MFD_RETU
766 select WATCHDOG_CORE
767 help
768 Retu watchdog driver for Nokia Internet Tablets (770, N800,
769 N810). At least on N800 the watchdog cannot be disabled, so
770 this driver is essential and you should enable it.
771
772 To compile this driver as a module, choose M here: the
773 module will be called retu_wdt.
774
775config MOXART_WDT
776 tristate "MOXART watchdog"
777 depends on ARCH_MOXART || COMPILE_TEST
778 help
779 Say Y here to include Watchdog timer support for the watchdog
780 existing on the MOXA ART SoC series platforms.
781
782 To compile this driver as a module, choose M here: the
783 module will be called moxart_wdt.
784
785config SIRFSOC_WATCHDOG
786 tristate "SiRFSOC watchdog"
787 depends on ARCH_SIRF || COMPILE_TEST
788 select WATCHDOG_CORE
789 default y
790 help
791 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
792 the watchdog triggers the system will be reset.
793
794config ST_LPC_WATCHDOG
795 tristate "STMicroelectronics LPC Watchdog"
796 depends on ARCH_STI || COMPILE_TEST
797 depends on OF
798 select WATCHDOG_CORE
799 help
800 Say Y here to include STMicroelectronics Low Power Controller
801 (LPC) based Watchdog timer support.
802
803 To compile this driver as a module, choose M here: the
804 module will be called st_lpc_wdt.
805
806config TEGRA_WATCHDOG
807 tristate "Tegra watchdog"
808 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
809 select WATCHDOG_CORE
810 help
811 Say Y here to include support for the watchdog timer
812 embedded in NVIDIA Tegra SoCs.
813
814 To compile this driver as a module, choose M here: the
815 module will be called tegra_wdt.
816
817config QCOM_WDT
818 tristate "QCOM watchdog"
819 depends on HAS_IOMEM
820 depends on ARCH_QCOM || COMPILE_TEST
821 select WATCHDOG_CORE
822 help
823 Say Y here to include Watchdog timer support for the watchdog found
824 on QCOM chipsets. Currently supported targets are the MSM8960,
825 APQ8064, and IPQ8064.
826
827 To compile this driver as a module, choose M here: the
828 module will be called qcom_wdt.
829
830config MESON_GXBB_WATCHDOG
831 tristate "Amlogic Meson GXBB SoCs watchdog support"
832 depends on ARCH_MESON || COMPILE_TEST
833 select WATCHDOG_CORE
834 help
835 Say Y here to include support for the watchdog timer
836 in Amlogic Meson GXBB SoCs.
837 To compile this driver as a module, choose M here: the
838 module will be called meson_gxbb_wdt.
839
840config MESON_WATCHDOG
841 tristate "Amlogic Meson SoCs watchdog support"
842 depends on ARCH_MESON || COMPILE_TEST
843 select WATCHDOG_CORE
844 help
845 Say Y here to include support for the watchdog timer
846 in Amlogic Meson SoCs.
847 To compile this driver as a module, choose M here: the
848 module will be called meson_wdt.
849
850config MEDIATEK_WATCHDOG
851 tristate "Mediatek SoCs watchdog support"
852 depends on ARCH_MEDIATEK || COMPILE_TEST
853 select WATCHDOG_CORE
854 select RESET_CONTROLLER
855 help
856 Say Y here to include support for the watchdog timer
857 in Mediatek SoCs.
858 To compile this driver as a module, choose M here: the
859 module will be called mtk_wdt.
860
861config DIGICOLOR_WATCHDOG
862 tristate "Conexant Digicolor SoCs watchdog support"
863 depends on ARCH_DIGICOLOR || COMPILE_TEST
864 select WATCHDOG_CORE
865 help
866 Say Y here to include support for the watchdog timer
867 in Conexant Digicolor SoCs.
868 To compile this driver as a module, choose M here: the
869 module will be called digicolor_wdt.
870
871config ARM_SMC_WATCHDOG
872 tristate "ARM Secure Monitor Call based watchdog support"
873 depends on ARM || ARM64
874 depends on OF
875 depends on HAVE_ARM_SMCCC
876 select WATCHDOG_CORE
877 help
878 Say Y here to include support for a watchdog timer
879 implemented by the EL3 Secure Monitor on ARM platforms.
880 Requires firmware support.
881 To compile this driver as a module, choose M here: the
882 module will be called arm_smc_wdt.
883
884config LPC18XX_WATCHDOG
885 tristate "LPC18xx/43xx Watchdog"
886 depends on ARCH_LPC18XX || COMPILE_TEST
887 depends on HAS_IOMEM
888 select WATCHDOG_CORE
889 help
890 Say Y here if to include support for the watchdog timer
891 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
892 processors.
893 To compile this driver as a module, choose M here: the
894 module will be called lpc18xx_wdt.
895
896config ATLAS7_WATCHDOG
897 tristate "CSRatlas7 watchdog"
898 depends on ARCH_ATLAS7 || COMPILE_TEST
899 help
900 Say Y here to include Watchdog timer support for the watchdog
901 existing on the CSRatlas7 series platforms.
902
903 To compile this driver as a module, choose M here: the
904 module will be called atlas7_wdt.
905
906config RENESAS_WDT
907 tristate "Renesas WDT Watchdog"
908 depends on ARCH_RENESAS || COMPILE_TEST
909 select WATCHDOG_CORE
910 help
911 This driver adds watchdog support for the integrated watchdogs in the
912 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
913
914config RENESAS_RZAWDT
915 tristate "Renesas RZ/A WDT Watchdog"
916 depends on ARCH_RENESAS || COMPILE_TEST
917 select WATCHDOG_CORE
918 help
919 This driver adds watchdog support for the integrated watchdogs in the
920 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
921
922config ASPEED_WATCHDOG
923 tristate "Aspeed BMC watchdog support"
924 depends on ARCH_ASPEED || COMPILE_TEST
925 select WATCHDOG_CORE
926 help
927 Say Y here to include support for the watchdog timer
928 in Aspeed BMC SoCs.
929
930 This driver is required to reboot the SoC.
931
932 To compile this driver as a module, choose M here: the
933 module will be called aspeed_wdt.
934
935config ZX2967_WATCHDOG
936 tristate "ZTE zx2967 SoCs watchdog support"
937 depends on ARCH_ZX
938 select WATCHDOG_CORE
939 help
940 Say Y here to include support for the watchdog timer
941 in ZTE zx2967 SoCs.
942 To compile this driver as a module, choose M here: the
943 module will be called zx2967_wdt.
944
945config STM32_WATCHDOG
946 tristate "STM32 Independent WatchDoG (IWDG) support"
947 depends on ARCH_STM32
948 select WATCHDOG_CORE
949 default y
950 help
951 Say Y here to include support for the watchdog timer
952 in stm32 SoCs.
953
954 To compile this driver as a module, choose M here: the
955 module will be called stm32_iwdg.
956
957config STPMIC1_WATCHDOG
958 tristate "STPMIC1 PMIC watchdog support"
959 depends on MFD_STPMIC1
960 select WATCHDOG_CORE
961 help
962 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
963 If the watchdog timer expires, stpmic1 will shut down all its power
964 supplies.
965
966 To compile this driver as a module, choose M here: the
967 module will be called spmic1_wdt.
968
969config UNIPHIER_WATCHDOG
970 tristate "UniPhier watchdog support"
971 depends on ARCH_UNIPHIER || COMPILE_TEST
972 depends on OF && MFD_SYSCON
973 select WATCHDOG_CORE
974 help
975 Say Y here to include support watchdog timer embedded
976 into the UniPhier system.
977
978 To compile this driver as a module, choose M here: the
979 module will be called uniphier_wdt.
980
981config RTD119X_WATCHDOG
982 bool "Realtek RTD119x/RTD129x watchdog support"
983 depends on ARCH_REALTEK || COMPILE_TEST
984 depends on OF
985 select WATCHDOG_CORE
986 default ARCH_REALTEK
987 help
988 Say Y here to include support for the watchdog timer in
989 Realtek RTD1295 SoCs.
990
991config SPRD_WATCHDOG
992 tristate "Spreadtrum watchdog support"
993 depends on ARCH_SPRD || COMPILE_TEST
994 select WATCHDOG_CORE
995 help
996 Say Y here to include watchdog timer supported
997 by Spreadtrum system.
998
999config PM8916_WATCHDOG
1000 tristate "QCOM PM8916 pmic watchdog"
1001 depends on OF && MFD_SPMI_PMIC
1002 select WATCHDOG_CORE
1003 help
1004 Say Y here to include support watchdog timer embedded into the
1005 pm8916 module.
1006
1007# X86 (i386 + ia64 + x86_64) Architecture
1008
1009config ACQUIRE_WDT
1010 tristate "Acquire SBC Watchdog Timer"
1011 depends on X86
1012 help
1013 This is the driver for the hardware watchdog on Single Board
1014 Computers produced by Acquire Inc (and others). This watchdog
1015 simply watches your kernel to make sure it doesn't freeze, and if
1016 it does, it reboots your computer after a certain amount of time.
1017
1018 To compile this driver as a module, choose M here: the
1019 module will be called acquirewdt.
1020
1021 Most people will say N.
1022
1023config ADVANTECH_WDT
1024 tristate "Advantech SBC Watchdog Timer"
1025 depends on X86
1026 help
1027 If you are configuring a Linux kernel for the Advantech single-board
1028 computer, say `Y' here to support its built-in watchdog timer
1029 feature. More information can be found at
1030 <http://www.advantech.com.tw/products/>
1031
1032config ALIM1535_WDT
1033 tristate "ALi M1535 PMU Watchdog Timer"
1034 depends on X86 && PCI
1035 help
1036 This is the driver for the hardware watchdog on the ALi M1535 PMU.
1037
1038 To compile this driver as a module, choose M here: the
1039 module will be called alim1535_wdt.
1040
1041 Most people will say N.
1042
1043config ALIM7101_WDT
1044 tristate "ALi M7101 PMU Computer Watchdog"
1045 depends on PCI
1046 help
1047 This is the driver for the hardware watchdog on the ALi M7101 PMU
1048 as used in the x86 Cobalt servers and also found in some
1049 SPARC Netra servers too.
1050
1051 To compile this driver as a module, choose M here: the
1052 module will be called alim7101_wdt.
1053
1054 Most people will say N.
1055
1056config EBC_C384_WDT
1057 tristate "WinSystems EBC-C384 Watchdog Timer"
1058 depends on X86
1059 select ISA_BUS_API
1060 select WATCHDOG_CORE
1061 help
1062 Enables watchdog timer support for the watchdog timer on the
1063 WinSystems EBC-C384 motherboard. The timeout may be configured via
1064 the timeout module parameter.
1065
1066config F71808E_WDT
1067 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1068 depends on X86
1069 help
1070 This is the driver for the hardware watchdog on the Fintek F71808E,
1071 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1072 F81866 Super I/O controllers.
1073
1074 You can compile this driver directly into the kernel, or use
1075 it as a module. The module will be called f71808e_wdt.
1076
1077config SP5100_TCO
1078 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1079 depends on X86 && PCI
1080 select WATCHDOG_CORE
1081 help
1082 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1083 (Total Cost of Ownership) timer is a watchdog timer that will reboot
1084 the machine after its expiration. The expiration time can be
1085 configured with the "heartbeat" parameter.
1086
1087 To compile this driver as a module, choose M here: the
1088 module will be called sp5100_tco.
1089
1090config GEODE_WDT
1091 tristate "AMD Geode CS5535/CS5536 Watchdog"
1092 depends on CS5535_MFGPT
1093 help
1094 This driver enables a watchdog capability built into the
1095 CS5535/CS5536 companion chips for the AMD Geode GX and LX
1096 processors. This watchdog watches your kernel to make sure
1097 it doesn't freeze, and if it does, it reboots your computer after
1098 a certain amount of time.
1099
1100 You can compile this driver directly into the kernel, or use
1101 it as a module. The module will be called geodewdt.
1102
1103config SC520_WDT
1104 tristate "AMD Elan SC520 processor Watchdog"
1105 depends on MELAN || COMPILE_TEST
1106 help
1107 This is the driver for the hardware watchdog built in to the
1108 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1109 This watchdog simply watches your kernel to make sure it doesn't
1110 freeze, and if it does, it reboots your computer after a certain
1111 amount of time.
1112
1113 You can compile this driver directly into the kernel, or use
1114 it as a module. The module will be called sc520_wdt.
1115
1116config SBC_FITPC2_WATCHDOG
1117 tristate "Compulab SBC-FITPC2 watchdog"
1118 depends on X86
1119 help
1120 This is the driver for the built-in watchdog timer on the fit-PC2,
1121 fit-PC2i, CM-iAM single-board computers made by Compulab.
1122
1123 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1124 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1125
1126 Entering BIOS setup temporary disables watchdog operation regardless to current state,
1127 so system will not be restarted while user in BIOS setup.
1128
1129 Once watchdog was enabled the system will be restarted every
1130 "Watchdog Timer Value" period, so to prevent it user can restart or
1131 disable the watchdog.
1132
1133 To compile this driver as a module, choose M here: the
1134 module will be called sbc_fitpc2_wdt.
1135
1136 Most people will say N.
1137
1138config EUROTECH_WDT
1139 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1140 depends on X86
1141 help
1142 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1143 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1144 information are at <http://www.eurotech.it/>.
1145
1146config IB700_WDT
1147 tristate "IB700 SBC Watchdog Timer"
1148 depends on X86
1149 help
1150 This is the driver for the hardware watchdog on the IB700 Single
1151 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1152 simply watches your kernel to make sure it doesn't freeze, and if
1153 it does, it reboots your computer after a certain amount of time.
1154
1155 This driver is like the WDT501 driver but for slightly different hardware.
1156
1157 To compile this driver as a module, choose M here: the
1158 module will be called ib700wdt.
1159
1160 Most people will say N.
1161
1162config IBMASR
1163 tristate "IBM Automatic Server Restart"
1164 depends on X86
1165 help
1166 This is the driver for the IBM Automatic Server Restart watchdog
1167 timer built-in into some eServer xSeries machines.
1168
1169 To compile this driver as a module, choose M here: the
1170 module will be called ibmasr.
1171
1172config WAFER_WDT
1173 tristate "ICP Single Board Computer Watchdog Timer"
1174 depends on X86
1175 help
1176 This is a driver for the hardware watchdog on the ICP Single
1177 Board Computer. This driver is working on (at least) the following
1178 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1179
1180 To compile this driver as a module, choose M here: the
1181 module will be called wafer5823wdt.
1182
1183config I6300ESB_WDT
1184 tristate "Intel 6300ESB Timer/Watchdog"
1185 depends on PCI
1186 select WATCHDOG_CORE
1187 help
1188 Hardware driver for the watchdog timer built into the Intel
1189 6300ESB controller hub.
1190
1191 To compile this driver as a module, choose M here: the
1192 module will be called i6300esb.
1193
1194config IE6XX_WDT
1195 tristate "Intel Atom E6xx Watchdog"
1196 depends on X86 && PCI
1197 select WATCHDOG_CORE
1198 select MFD_CORE
1199 select LPC_SCH
1200 help
1201 Hardware driver for the watchdog timer built into the Intel
1202 Atom E6XX (TunnelCreek) processor.
1203
1204 To compile this driver as a module, choose M here: the
1205 module will be called ie6xx_wdt.
1206
1207config INTEL_SCU_WATCHDOG
1208 bool "Intel SCU Watchdog for Mobile Platforms"
1209 depends on X86_INTEL_MID
1210 help
1211 Hardware driver for the watchdog time built into the Intel SCU
1212 for Intel Mobile Platforms.
1213
1214 To compile this driver as a module, choose M here.
1215
1216config INTEL_MID_WATCHDOG
1217 tristate "Intel MID Watchdog Timer"
1218 depends on X86_INTEL_MID
1219 select WATCHDOG_CORE
1220 help
1221 Watchdog timer driver built into the Intel SCU for Intel MID
1222 Platforms.
1223
1224 This driver currently supports only the watchdog evolution
1225 implementation in SCU, available for Merrifield generation.
1226
1227 To compile this driver as a module, choose M here.
1228
1229config ITCO_WDT
1230 tristate "Intel TCO Timer/Watchdog"
1231 depends on (X86 || IA64) && PCI
1232 select WATCHDOG_CORE
1233 depends on I2C || I2C=n
1234 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1235 select LPC_ICH if !EXPERT
1236 select I2C_I801 if !EXPERT && I2C
1237 help
1238 Hardware driver for the intel TCO timer based watchdog devices.
1239 These drivers are included in the Intel 82801 I/O Controller
1240 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1241 controller hub.
1242
1243 The TCO (Total Cost of Ownership) timer is a watchdog timer
1244 that will reboot the machine after its second expiration. The
1245 expiration time can be configured with the "heartbeat" parameter.
1246
1247 On some motherboards the driver may fail to reset the chipset's
1248 NO_REBOOT flag which prevents the watchdog from rebooting the
1249 machine. If this is the case you will get a kernel message like
1250 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1251
1252 To compile this driver as a module, choose M here: the
1253 module will be called iTCO_wdt.
1254
1255config ITCO_VENDOR_SUPPORT
1256 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1257 depends on ITCO_WDT
1258 help
1259 Add vendor specific support to the intel TCO timer based watchdog
1260 devices. At this moment we only have additional support for some
1261 SuperMicro Inc. motherboards.
1262
1263config IT8712F_WDT
1264 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1265 depends on X86
1266 help
1267 This is the driver for the built-in watchdog timer on the IT8712F
1268 Super I/0 chipset used on many motherboards.
1269
1270 If the driver does not work, then make sure that the game port in
1271 the BIOS is enabled.
1272
1273 To compile this driver as a module, choose M here: the
1274 module will be called it8712f_wdt.
1275
1276config IT87_WDT
1277 tristate "IT87 Watchdog Timer"
1278 depends on X86
1279 select WATCHDOG_CORE
1280 help
1281 This is the driver for the hardware watchdog on the ITE IT8607,
1282 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1283 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1284 IT8783 Super I/O chips.
1285
1286 This watchdog simply watches your kernel to make sure it doesn't
1287 freeze, and if it does, it reboots your computer after a certain
1288 amount of time.
1289
1290 To compile this driver as a module, choose M here: the module will
1291 be called it87_wdt.
1292
1293config HP_WATCHDOG
1294 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1295 select WATCHDOG_CORE
1296 depends on X86 && PCI
1297 help
1298 A software monitoring watchdog and NMI handling driver. This driver
1299 will detect lockups and provide a stack trace. This is a driver that
1300 will only load on an HP ProLiant system with a minimum of iLO2 support.
1301 To compile this driver as a module, choose M here: the module will be
1302 called hpwdt.
1303
1304config HPWDT_NMI_DECODING
1305 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1306 depends on HP_WATCHDOG
1307 default y
1308 help
1309 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1310 "Generate NMI to System" virtual button. When an NMI is claimed
1311 by the driver, panic is called.
1312
1313config KEMPLD_WDT
1314 tristate "Kontron COM Watchdog Timer"
1315 depends on MFD_KEMPLD
1316 select WATCHDOG_CORE
1317 help
1318 Support for the PLD watchdog on some Kontron ETX and COMexpress
1319 (ETXexpress) modules
1320
1321 This driver can also be built as a module. If so, the module will be
1322 called kempld_wdt.
1323
1324config SC1200_WDT
1325 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1326 depends on X86
1327 help
1328 This is a driver for National Semiconductor PC87307/PC97307 hardware
1329 watchdog cards as found on the SC1200. This watchdog is mainly used
1330 for power management purposes and can be used to power down the device
1331 during inactivity periods (includes interrupt activity monitoring).
1332
1333 To compile this driver as a module, choose M here: the
1334 module will be called sc1200wdt.
1335
1336 Most people will say N.
1337
1338config SCx200_WDT
1339 tristate "National Semiconductor SCx200 Watchdog"
1340 depends on SCx200 && PCI
1341 help
1342 Enable the built-in watchdog timer support on the National
1343 Semiconductor SCx200 processors.
1344
1345 If compiled as a module, it will be called scx200_wdt.
1346
1347config PC87413_WDT
1348 tristate "NS PC87413 watchdog"
1349 depends on X86
1350 help
1351 This is the driver for the hardware watchdog on the PC87413 chipset
1352 This watchdog simply watches your kernel to make sure it doesn't
1353 freeze, and if it does, it reboots your computer after a certain
1354 amount of time.
1355
1356 To compile this driver as a module, choose M here: the
1357 module will be called pc87413_wdt.
1358
1359 Most people will say N.
1360
1361config NV_TCO
1362 tristate "nVidia TCO Timer/Watchdog"
1363 depends on X86 && PCI
1364 help
1365 Hardware driver for the TCO timer built into the nVidia Hub family
1366 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1367 watchdog timer that will reboot the machine after its second
1368 expiration. The expiration time can be configured with the
1369 "heartbeat" parameter.
1370
1371 On some motherboards the driver may fail to reset the chipset's
1372 NO_REBOOT flag which prevents the watchdog from rebooting the
1373 machine. If this is the case you will get a kernel message like
1374 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1375
1376 To compile this driver as a module, choose M here: the
1377 module will be called nv_tco.
1378
1379config RDC321X_WDT
1380 tristate "RDC R-321x SoC watchdog"
1381 depends on X86_RDC321X || COMPILE_TEST
1382 depends on PCI
1383 help
1384 This is the driver for the built in hardware watchdog
1385 in the RDC R-321x SoC.
1386
1387 To compile this driver as a module, choose M here: the
1388 module will be called rdc321x_wdt.
1389
1390config 60XX_WDT
1391 tristate "SBC-60XX Watchdog Timer"
1392 depends on X86
1393 help
1394 This driver can be used with the watchdog timer found on some
1395 single board computers, namely the 6010 PII based computer.
1396 It may well work with other cards. It reads port 0x443 to enable
1397 and re-set the watchdog timer, and reads port 0x45 to disable
1398 the watchdog. If you have a card that behave in similar ways,
1399 you can probably make this driver work with your card as well.
1400
1401 You can compile this driver directly into the kernel, or use
1402 it as a module. The module will be called sbc60xxwdt.
1403
1404config SBC8360_WDT
1405 tristate "SBC8360 Watchdog Timer"
1406 depends on X86_32
1407 help
1408
1409 This is the driver for the hardware watchdog on the SBC8360 Single
1410 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1411
1412 To compile this driver as a module, choose M here: the
1413 module will be called sbc8360.
1414
1415 Most people will say N.
1416
1417config SBC7240_WDT
1418 tristate "SBC Nano 7240 Watchdog Timer"
1419 depends on X86_32 && !UML
1420 help
1421 This is the driver for the hardware watchdog found on the IEI
1422 single board computers EPIC Nano 7240 (and likely others). This
1423 watchdog simply watches your kernel to make sure it doesn't freeze,
1424 and if it does, it reboots your computer after a certain amount of
1425 time.
1426
1427 To compile this driver as a module, choose M here: the
1428 module will be called sbc7240_wdt.
1429
1430config CPU5_WDT
1431 tristate "SMA CPU5 Watchdog"
1432 depends on X86
1433 help
1434 TBD.
1435 To compile this driver as a module, choose M here: the
1436 module will be called cpu5wdt.
1437
1438config SMSC_SCH311X_WDT
1439 tristate "SMSC SCH311X Watchdog Timer"
1440 depends on X86
1441 help
1442 This is the driver for the hardware watchdog timer on the
1443 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1444 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1445 serial ports).
1446
1447 To compile this driver as a module, choose M here: the
1448 module will be called sch311x_wdt.
1449
1450config SMSC37B787_WDT
1451 tristate "Winbond SMsC37B787 Watchdog Timer"
1452 depends on X86
1453 help
1454 This is the driver for the hardware watchdog component on the
1455 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1456 from Vision Systems and maybe others.
1457
1458 This watchdog simply watches your kernel to make sure it doesn't
1459 freeze, and if it does, it reboots your computer after a certain
1460 amount of time.
1461
1462 Usually a userspace daemon will notify the kernel WDT driver that
1463 userspace is still alive, at regular intervals.
1464
1465 To compile this driver as a module, choose M here: the
1466 module will be called smsc37b787_wdt.
1467
1468 Most people will say N.
1469
1470config TQMX86_WDT
1471 tristate "TQ-Systems TQMX86 Watchdog Timer"
1472 depends on X86
1473 select WATCHDOG_CORE
1474 help
1475 This is the driver for the hardware watchdog timer in the TQMX86 IO
1476 controller found on some of their ComExpress Modules.
1477
1478 To compile this driver as a module, choose M here; the module
1479 will be called tqmx86_wdt.
1480
1481 Most people will say N.
1482
1483config VIA_WDT
1484 tristate "VIA Watchdog Timer"
1485 depends on X86 && PCI
1486 select WATCHDOG_CORE
1487 help
1488 This is the driver for the hardware watchdog timer on VIA
1489 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1490
1491 To compile this driver as a module, choose M here; the module
1492 will be called via_wdt.
1493
1494 Most people will say N.
1495
1496config W83627HF_WDT
1497 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1498 depends on X86
1499 select WATCHDOG_CORE
1500 help
1501 This is the driver for the hardware watchdog on the following
1502 Super I/O chips.
1503 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1504 W83637HF
1505 W83667HG/HG-B
1506 W83687THF
1507 W83697HF
1508 W83697UG
1509 NCT6775
1510 NCT6776
1511 NCT6779
1512 NCT6791
1513 NCT6792
1514 NCT6102D/04D/06D
1515 NCT6116D
1516
1517 This watchdog simply watches your kernel to make sure it doesn't
1518 freeze, and if it does, it reboots your computer after a certain
1519 amount of time.
1520
1521 To compile this driver as a module, choose M here: the
1522 module will be called w83627hf_wdt.
1523
1524 Most people will say N.
1525
1526config W83877F_WDT
1527 tristate "W83877F (EMACS) Watchdog Timer"
1528 depends on X86
1529 help
1530 This is the driver for the hardware watchdog on the W83877F chipset
1531 as used in EMACS PC-104 motherboards (and likely others). This
1532 watchdog simply watches your kernel to make sure it doesn't freeze,
1533 and if it does, it reboots your computer after a certain amount of
1534 time.
1535
1536 To compile this driver as a module, choose M here: the
1537 module will be called w83877f_wdt.
1538
1539 Most people will say N.
1540
1541config W83977F_WDT
1542 tristate "W83977F (PCM-5335) Watchdog Timer"
1543 depends on X86
1544 help
1545 This is the driver for the hardware watchdog on the W83977F I/O chip
1546 as used in AAEON's PCM-5335 SBC (and likely others). This
1547 watchdog simply watches your kernel to make sure it doesn't freeze,
1548 and if it does, it reboots your computer after a certain amount of
1549 time.
1550
1551 To compile this driver as a module, choose M here: the
1552 module will be called w83977f_wdt.
1553
1554config MACHZ_WDT
1555 tristate "ZF MachZ Watchdog"
1556 depends on X86
1557 help
1558 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1559 N. This is the driver for the watchdog timer built-in on that
1560 processor using ZF-Logic interface. This watchdog simply watches
1561 your kernel to make sure it doesn't freeze, and if it does, it
1562 reboots your computer after a certain amount of time.
1563
1564 To compile this driver as a module, choose M here: the
1565 module will be called machzwd.
1566
1567config SBC_EPX_C3_WATCHDOG
1568 tristate "Winsystems SBC EPX-C3 watchdog"
1569 depends on X86
1570 help
1571 This is the driver for the built-in watchdog timer on the EPX-C3
1572 Single-board computer made by Winsystems, Inc.
1573
1574 *Note*: This hardware watchdog is not probeable and thus there
1575 is no way to know if writing to its IO address will corrupt
1576 your system or have any real effect. The only way to be sure
1577 that this driver does what you want is to make sure you
1578 are running it on an EPX-C3 from Winsystems with the watchdog
1579 timer at IO address 0x1ee and 0x1ef. It will write to both those
1580 IO ports. Basically, the assumption is made that if you compile
1581 this driver into your kernel and/or load it as a module, that you
1582 know what you are doing and that you are in fact running on an
1583 EPX-C3 board!
1584
1585 To compile this driver as a module, choose M here: the
1586 module will be called sbc_epx_c3.
1587
1588config INTEL_MEI_WDT
1589 tristate "Intel MEI iAMT Watchdog"
1590 depends on INTEL_MEI && X86
1591 select WATCHDOG_CORE
1592 help
1593 A device driver for the Intel MEI iAMT watchdog.
1594
1595 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1596 Whenever the OS hangs or crashes, iAMT will send an event
1597 to any subscriber to this event. The watchdog doesn't reset the
1598 the platform.
1599
1600 To compile this driver as a module, choose M here:
1601 the module will be called mei_wdt.
1602
1603config NI903X_WDT
1604 tristate "NI 903x/913x Watchdog"
1605 depends on X86 && ACPI
1606 select WATCHDOG_CORE
1607 help
1608 This is the driver for the watchdog timer on the National Instruments
1609 903x/913x real-time controllers.
1610
1611 To compile this driver as a module, choose M here: the module will be
1612 called ni903x_wdt.
1613
1614config NIC7018_WDT
1615 tristate "NIC7018 Watchdog"
1616 depends on X86 && ACPI
1617 select WATCHDOG_CORE
1618 help
1619 Support for National Instruments NIC7018 Watchdog.
1620
1621 To compile this driver as a module, choose M here: the module will be
1622 called nic7018_wdt.
1623
1624# M68K Architecture
1625
1626config M54xx_WATCHDOG
1627 tristate "MCF54xx watchdog support"
1628 depends on M548x
1629 help
1630 To compile this driver as a module, choose M here: the
1631 module will be called m54xx_wdt.
1632
1633# MicroBlaze Architecture
1634
1635# MIPS Architecture
1636
1637config ATH79_WDT
1638 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1639 depends on ATH79 || (ARM && COMPILE_TEST)
1640 help
1641 Hardware driver for the built-in watchdog timer on the Atheros
1642 AR71XX/AR724X/AR913X SoCs.
1643
1644config BCM47XX_WDT
1645 tristate "Broadcom BCM47xx Watchdog Timer"
1646 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1647 select WATCHDOG_CORE
1648 help
1649 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1650
1651config RC32434_WDT
1652 tristate "IDT RC32434 SoC Watchdog Timer"
1653 depends on MIKROTIK_RB532
1654 help
1655 Hardware driver for the IDT RC32434 SoC built-in
1656 watchdog timer.
1657
1658 To compile this driver as a module, choose M here: the
1659 module will be called rc32434_wdt.
1660
1661config INDYDOG
1662 tristate "Indy/I2 Hardware Watchdog"
1663 depends on SGI_HAS_INDYDOG
1664 help
1665 Hardware driver for the Indy's/I2's watchdog. This is a
1666 watchdog timer that will reboot the machine after a 60 second
1667 timer expired and no process has written to /dev/watchdog during
1668 that time.
1669
1670config JZ4740_WDT
1671 tristate "Ingenic jz4740 SoC hardware watchdog"
1672 depends on MIPS
1673 depends on COMMON_CLK
1674 select WATCHDOG_CORE
1675 select MFD_SYSCON
1676 help
1677 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1678
1679config WDT_MTX1
1680 tristate "MTX-1 Hardware Watchdog"
1681 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1682 help
1683 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1684 will reboot the machine after a 100 seconds timer expired.
1685
1686config PNX833X_WDT
1687 tristate "PNX833x Hardware Watchdog"
1688 depends on SOC_PNX8335
1689 depends on BROKEN
1690 help
1691 Hardware driver for the PNX833x's watchdog. This is a
1692 watchdog timer that will reboot the machine after a programmable
1693 timer has expired and no process has written to /dev/watchdog during
1694 that time.
1695
1696config SIBYTE_WDOG
1697 tristate "Sibyte SoC hardware watchdog"
1698 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1699 help
1700 Watchdog driver for the built in watchdog hardware in Sibyte
1701 SoC processors. There are apparently two watchdog timers
1702 on such processors; this driver supports only the first one,
1703 because currently Linux only supports exporting one watchdog
1704 to userspace.
1705
1706 To compile this driver as a loadable module, choose M here.
1707 The module will be called sb_wdog.
1708
1709config AR7_WDT
1710 tristate "TI AR7 Watchdog Timer"
1711 depends on AR7 || (MIPS && COMPILE_TEST)
1712 help
1713 Hardware driver for the TI AR7 Watchdog Timer.
1714
1715config TXX9_WDT
1716 tristate "Toshiba TXx9 Watchdog Timer"
1717 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1718 select WATCHDOG_CORE
1719 help
1720 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1721
1722config OCTEON_WDT
1723 tristate "Cavium OCTEON SOC family Watchdog Timer"
1724 depends on CAVIUM_OCTEON_SOC
1725 default y
1726 select WATCHDOG_CORE
1727 select EXPORT_UASM if OCTEON_WDT = m
1728 help
1729 Hardware driver for OCTEON's on chip watchdog timer.
1730 Enables the watchdog for all cores running Linux. It
1731 installs a NMI handler and pokes the watchdog based on an
1732 interrupt. On first expiration of the watchdog, the
1733 interrupt handler pokes it. The second expiration causes an
1734 NMI that prints a message. The third expiration causes a
1735 global soft reset.
1736
1737 When userspace has /dev/watchdog open, no poking is done
1738 from the first interrupt, it is then only poked when the
1739 device is written.
1740
1741config BCM63XX_WDT
1742 tristate "Broadcom BCM63xx hardware watchdog"
1743 depends on BCM63XX
1744 help
1745 Watchdog driver for the built in watchdog hardware in Broadcom
1746 BCM63xx SoC.
1747
1748 To compile this driver as a loadable module, choose M here.
1749 The module will be called bcm63xx_wdt.
1750
1751config BCM2835_WDT
1752 tristate "Broadcom BCM2835 hardware watchdog"
1753 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1754 select WATCHDOG_CORE
1755 help
1756 Watchdog driver for the built in watchdog hardware in Broadcom
1757 BCM2835 SoC.
1758
1759 To compile this driver as a loadable module, choose M here.
1760 The module will be called bcm2835_wdt.
1761
1762config BCM_KONA_WDT
1763 tristate "BCM Kona Watchdog"
1764 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1765 select WATCHDOG_CORE
1766 help
1767 Support for the watchdog timer on the following Broadcom BCM281xx
1768 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1769 BCM28155 variants.
1770
1771 Say 'Y' or 'M' here to enable the driver. The module will be called
1772 bcm_kona_wdt.
1773
1774config BCM_KONA_WDT_DEBUG
1775 bool "DEBUGFS support for BCM Kona Watchdog"
1776 depends on BCM_KONA_WDT
1777 help
1778 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1779 access to the driver's internal data structures as well as watchdog
1780 timer hardware registres.
1781
1782 If in doubt, say 'N'.
1783
1784config BCM7038_WDT
1785 tristate "BCM7038 Watchdog"
1786 select WATCHDOG_CORE
1787 depends on HAS_IOMEM
1788 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1789 help
1790 Watchdog driver for the built-in hardware in Broadcom 7038 and
1791 later SoCs used in set-top boxes. BCM7038 was made public
1792 during the 2004 CES, and since then, many Broadcom chips use this
1793 watchdog block, including some cable modem chips.
1794
1795config IMGPDC_WDT
1796 tristate "Imagination Technologies PDC Watchdog Timer"
1797 depends on HAS_IOMEM
1798 depends on MIPS || COMPILE_TEST
1799 select WATCHDOG_CORE
1800 help
1801 Driver for Imagination Technologies PowerDown Controller
1802 Watchdog Timer.
1803
1804 To compile this driver as a loadable module, choose M here.
1805 The module will be called imgpdc_wdt.
1806
1807config LANTIQ_WDT
1808 tristate "Lantiq SoC watchdog"
1809 depends on LANTIQ
1810 select WATCHDOG_CORE
1811 help
1812 Hardware driver for the Lantiq SoC Watchdog Timer.
1813
1814config LOONGSON1_WDT
1815 tristate "Loongson1 SoC hardware watchdog"
1816 depends on MACH_LOONGSON32
1817 select WATCHDOG_CORE
1818 help
1819 Hardware driver for the Loongson1 SoC Watchdog Timer.
1820
1821config RALINK_WDT
1822 tristate "Ralink SoC watchdog"
1823 select WATCHDOG_CORE
1824 depends on RALINK
1825 help
1826 Hardware driver for the Ralink SoC Watchdog Timer.
1827
1828config MT7621_WDT
1829 tristate "Mediatek SoC watchdog"
1830 select WATCHDOG_CORE
1831 depends on SOC_MT7620 || SOC_MT7621
1832 help
1833 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1834
1835config PIC32_WDT
1836 tristate "Microchip PIC32 hardware watchdog"
1837 select WATCHDOG_CORE
1838 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1839 help
1840 Watchdog driver for the built in watchdog hardware in a PIC32.
1841
1842 Configuration bits must be set appropriately for the watchdog to be
1843 controlled by this driver.
1844
1845 To compile this driver as a loadable module, choose M here.
1846 The module will be called pic32-wdt.
1847
1848config PIC32_DMT
1849 tristate "Microchip PIC32 Deadman Timer"
1850 select WATCHDOG_CORE
1851 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1852 help
1853 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1854 timer is typically be used in misson critical and safety critical
1855 applications, where any single failure of the software functionality
1856 and sequencing must be detected.
1857
1858 To compile this driver as a loadable module, choose M here.
1859 The module will be called pic32-dmt.
1860
1861# PARISC Architecture
1862
1863# POWERPC Architecture
1864
1865config GEF_WDT
1866 tristate "GE Watchdog Timer"
1867 depends on GE_FPGA
1868 help
1869 Watchdog timer found in a number of GE single board computers.
1870
1871config MPC5200_WDT
1872 bool "MPC52xx Watchdog Timer"
1873 depends on PPC_MPC52xx || COMPILE_TEST
1874 help
1875 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1876
1877config 8xxx_WDT
1878 tristate "MPC8xxx Platform Watchdog Timer"
1879 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1880 select WATCHDOG_CORE
1881 help
1882 This driver is for a SoC level watchdog that exists on some
1883 Freescale PowerPC processors. So far this driver supports:
1884 - MPC8xx watchdogs
1885 - MPC83xx watchdogs
1886 - MPC86xx watchdogs
1887
1888 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1889
1890config MV64X60_WDT
1891 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1892 depends on MV64X60 || COMPILE_TEST
1893
1894config PIKA_WDT
1895 tristate "PIKA FPGA Watchdog"
1896 depends on WARP || (PPC64 && COMPILE_TEST)
1897 default y
1898 help
1899 This enables the watchdog in the PIKA FPGA. Currently used on
1900 the Warp platform.
1901
1902config BOOKE_WDT
1903 tristate "PowerPC Book-E Watchdog Timer"
1904 depends on BOOKE || 4xx
1905 select WATCHDOG_CORE
1906 help
1907 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1908 MPC85xx SOCs and the IBM PowerPC 440.
1909
1910 Please see Documentation/watchdog/watchdog-api.rst for
1911 more information.
1912
1913config BOOKE_WDT_DEFAULT_TIMEOUT
1914 int "PowerPC Book-E Watchdog Timer Default Timeout"
1915 depends on BOOKE_WDT
1916 default 38 if PPC_FSL_BOOK3E
1917 range 0 63 if PPC_FSL_BOOK3E
1918 default 3 if !PPC_FSL_BOOK3E
1919 range 0 3 if !PPC_FSL_BOOK3E
1920 help
1921 Select the default watchdog timer period to be used by the PowerPC
1922 Book-E watchdog driver. A watchdog "event" occurs when the bit
1923 position represented by this number transitions from zero to one.
1924
1925 For Freescale Book-E processors, this is a number between 0 and 63.
1926 For other Book-E processors, this is a number between 0 and 3.
1927
1928 The value can be overridden by the wdt_period command-line parameter.
1929
1930config MEN_A21_WDT
1931 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1932 select WATCHDOG_CORE
1933 depends on GPIOLIB || COMPILE_TEST
1934 help
1935 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1936
1937 The driver can also be built as a module. If so, the module will be
1938 called mena21_wdt.
1939
1940 If unsure select N here.
1941
1942# PPC64 Architecture
1943
1944config WATCHDOG_RTAS
1945 tristate "RTAS watchdog"
1946 depends on PPC_RTAS
1947 help
1948 This driver adds watchdog support for the RTAS watchdog.
1949
1950 To compile this driver as a module, choose M here. The module
1951 will be called wdrtas.
1952
1953# S390 Architecture
1954
1955config DIAG288_WATCHDOG
1956 tristate "System z diag288 Watchdog"
1957 depends on S390
1958 select WATCHDOG_CORE
1959 help
1960 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1961 provide a virtual watchdog timer to their guest that cause a
1962 user define Control Program command to be executed after a
1963 timeout.
1964 LPAR provides a very similar interface. This driver handles
1965 both.
1966
1967 To compile this driver as a module, choose M here. The module
1968 will be called diag288_wdt.
1969
1970# SUPERH (sh + sh64) Architecture
1971
1972config SH_WDT
1973 tristate "SuperH Watchdog"
1974 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1975 select WATCHDOG_CORE
1976 help
1977 This driver adds watchdog support for the integrated watchdog in the
1978 SuperH processors. If you have one of these processors and wish
1979 to have watchdog support enabled, say Y, otherwise say N.
1980
1981 As a side note, saying Y here will automatically boost HZ to 1000
1982 so that the timer has a chance to clear the overflow counter. On
1983 slower systems (such as the SH-2 and SH-3) this will likely yield
1984 some performance issues. As such, the WDT should be avoided here
1985 unless it is absolutely necessary.
1986
1987 To compile this driver as a module, choose M here: the
1988 module will be called shwdt.
1989
1990# SPARC Architecture
1991
1992# SPARC64 Architecture
1993
1994config WATCHDOG_CP1XXX
1995 tristate "CP1XXX Hardware Watchdog support"
1996 depends on SPARC64 && PCI
1997 help
1998 This is the driver for the hardware watchdog timers present on
1999 Sun Microsystems CompactPCI models CP1400 and CP1500.
2000
2001 To compile this driver as a module, choose M here: the
2002 module will be called cpwatchdog.
2003
2004 If you do not have a CompactPCI model CP1400 or CP1500, or
2005 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2006 you should say N to this option.
2007
2008config WATCHDOG_RIO
2009 tristate "RIO Hardware Watchdog support"
2010 depends on SPARC64 && PCI
2011 help
2012 Say Y here to support the hardware watchdog capability on Sun RIO
2013 machines. The watchdog timeout period is normally one minute but
2014 can be changed with a boot-time parameter.
2015
2016config WATCHDOG_SUN4V
2017 tristate "Sun4v Watchdog support"
2018 select WATCHDOG_CORE
2019 depends on SPARC64
2020 help
2021 Say Y here to support the hypervisor watchdog capability embedded
2022 in the SPARC sun4v architecture.
2023
2024 To compile this driver as a module, choose M here. The module will
2025 be called sun4v_wdt.
2026
2027# XTENSA Architecture
2028
2029# Xen Architecture
2030
2031config XEN_WDT
2032 tristate "Xen Watchdog support"
2033 depends on XEN
2034 select WATCHDOG_CORE
2035 help
2036 Say Y here to support the hypervisor watchdog capability provided
2037 by Xen 4.0 and newer. The watchdog timeout period is normally one
2038 minute but can be changed with a boot-time parameter.
2039
2040config UML_WATCHDOG
2041 tristate "UML watchdog"
2042 depends on UML || COMPILE_TEST
2043
2044#
2045# ISA-based Watchdog Cards
2046#
2047
2048comment "ISA-based Watchdog Cards"
2049 depends on ISA
2050
2051config PCWATCHDOG
2052 tristate "Berkshire Products ISA-PC Watchdog"
2053 depends on ISA
2054 help
2055 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2056 This card simply watches your kernel to make sure it doesn't freeze,
2057 and if it does, it reboots your computer after a certain amount of
2058 time. This driver is like the WDT501 driver but for different
2059 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2060 watchdog cards can be ordered from <http://www.berkprod.com/>.
2061
2062 To compile this driver as a module, choose M here: the
2063 module will be called pcwd.
2064
2065 Most people will say N.
2066
2067config MIXCOMWD
2068 tristate "Mixcom Watchdog"
2069 depends on ISA
2070 help
2071 This is a driver for the Mixcom hardware watchdog cards. This
2072 watchdog simply watches your kernel to make sure it doesn't freeze,
2073 and if it does, it reboots your computer after a certain amount of
2074 time.
2075
2076 To compile this driver as a module, choose M here: the
2077 module will be called mixcomwd.
2078
2079 Most people will say N.
2080
2081config WDT
2082 tristate "WDT Watchdog timer"
2083 depends on ISA
2084 help
2085 If you have a WDT500P or WDT501P watchdog board, say Y here,
2086 otherwise N. It is not possible to probe for this board, which means
2087 that you have to inform the kernel about the IO port and IRQ that
2088 is needed (you can do this via the io and irq parameters)
2089
2090 To compile this driver as a module, choose M here: the
2091 module will be called wdt.
2092
2093#
2094# PCI-based Watchdog Cards
2095#
2096
2097comment "PCI-based Watchdog Cards"
2098 depends on PCI
2099
2100config PCIPCWATCHDOG
2101 tristate "Berkshire Products PCI-PC Watchdog"
2102 depends on PCI
2103 help
2104 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2105 This card simply watches your kernel to make sure it doesn't freeze,
2106 and if it does, it reboots your computer after a certain amount of
2107 time. The card can also monitor the internal temperature of the PC.
2108 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2109
2110 To compile this driver as a module, choose M here: the
2111 module will be called pcwd_pci.
2112
2113 Most people will say N.
2114
2115config WDTPCI
2116 tristate "PCI-WDT500/501 Watchdog timer"
2117 depends on PCI
2118 help
2119 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2120
2121 If you have a PCI-WDT501 watchdog board then you can enable the
2122 temperature sensor by setting the type parameter to 501.
2123
2124 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2125 can do this via the tachometer parameter. Only do this if you have a
2126 fan tachometer actually set up.
2127
2128 To compile this driver as a module, choose M here: the
2129 module will be called wdt_pci.
2130
2131#
2132# USB-based Watchdog Cards
2133#
2134
2135comment "USB-based Watchdog Cards"
2136 depends on USB
2137
2138config USBPCWATCHDOG
2139 tristate "Berkshire Products USB-PC Watchdog"
2140 depends on USB
2141 help
2142 This is the driver for the Berkshire Products USB-PC Watchdog card.
2143 This card simply watches your kernel to make sure it doesn't freeze,
2144 and if it does, it reboots your computer after a certain amount of
2145 time. The card can also monitor the internal temperature of the PC.
2146 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2147
2148 To compile this driver as a module, choose M here: the
2149 module will be called pcwd_usb.
2150
2151 Most people will say N.
2152
2153endif # WATCHDOG