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Linux/drivers/watchdog/Kconfig

  1 
  2 #
  3 # Watchdog device configuration
  4 #
  5 
  6 menuconfig WATCHDOG
  7         bool "Watchdog Timer Support"
  8         ---help---
  9           If you say Y here (and to one of the following options) and create a
 10           character special file /dev/watchdog with major number 10 and minor
 11           number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
 12           subsequently opening the file and then failing to write to it for
 13           longer than 1 minute will result in rebooting the machine. This
 14           could be useful for a networked machine that needs to come back
 15           on-line as fast as possible after a lock-up. There's both a watchdog
 16           implementation entirely in software (which can sometimes fail to
 17           reboot the machine) and a driver for hardware watchdog boards, which
 18           are more robust and can also keep track of the temperature inside
 19           your computer. For details, read
 20           <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
 21 
 22           The watchdog is usually used together with the watchdog daemon
 23           which is available from
 24           <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
 25           also monitor NFS connections and can reboot the machine when the process
 26           table is full.
 27 
 28           If unsure, say N.
 29 
 30 if WATCHDOG
 31 
 32 config WATCHDOG_CORE
 33         bool "WatchDog Timer Driver Core"
 34         ---help---
 35           Say Y here if you want to use the new watchdog timer driver core.
 36           This driver provides a framework for all watchdog timer drivers
 37           and gives them the /dev/watchdog interface (and later also the
 38           sysfs interface).
 39 
 40 config WATCHDOG_NOWAYOUT
 41         bool "Disable watchdog shutdown on close"
 42         help
 43           The default watchdog behaviour (which you get if you say N here) is
 44           to stop the timer if the process managing it closes the file
 45           /dev/watchdog. It's always remotely possible that this process might
 46           get killed. If you say Y here, the watchdog cannot be stopped once
 47           it has been started.
 48 
 49 config WATCHDOG_SYSFS
 50         bool "Read different watchdog information through sysfs"
 51         default n
 52         help
 53           Say Y here if you want to enable watchdog device status read through
 54           sysfs attributes.
 55 
 56 #
 57 # General Watchdog drivers
 58 #
 59 
 60 comment "Watchdog Device Drivers"
 61 
 62 # Architecture Independent
 63 
 64 config SOFT_WATCHDOG
 65         tristate "Software watchdog"
 66         select WATCHDOG_CORE
 67         help
 68           A software monitoring watchdog. This will fail to reboot your system
 69           from some situations that the hardware watchdog will recover
 70           from. Equally it's a lot cheaper to install.
 71 
 72           To compile this driver as a module, choose M here: the
 73           module will be called softdog.
 74 
 75 config DA9052_WATCHDOG
 76         tristate "Dialog DA9052 Watchdog"
 77         depends on PMIC_DA9052
 78         select WATCHDOG_CORE
 79         help
 80           Support for the watchdog in the DA9052 PMIC. Watchdog trigger
 81           cause system reset.
 82 
 83           Say Y here to include support for the DA9052 watchdog.
 84           Alternatively say M to compile the driver as a module,
 85           which will be called da9052_wdt.
 86 
 87 config DA9055_WATCHDOG
 88         tristate "Dialog Semiconductor DA9055 Watchdog"
 89         depends on MFD_DA9055
 90         select WATCHDOG_CORE
 91         help
 92           If you say yes here you get support for watchdog on the Dialog
 93           Semiconductor DA9055 PMIC.
 94 
 95           This driver can also be built as a module.  If so, the module
 96           will be called da9055_wdt.
 97 
 98 config DA9063_WATCHDOG
 99         tristate "Dialog DA9063 Watchdog"
100         depends on MFD_DA9063
101         select WATCHDOG_CORE
102         help
103           Support for the watchdog in the DA9063 PMIC.
104 
105           This driver can be built as a module. The module name is da9063_wdt.
106 
107 config DA9062_WATCHDOG
108         tristate "Dialog DA9062 Watchdog"
109         depends on MFD_DA9062
110         select WATCHDOG_CORE
111         help
112           Support for the watchdog in the DA9062 PMIC.
113 
114           This driver can be built as a module. The module name is da9062_wdt.
115 
116 config GPIO_WATCHDOG
117         tristate "Watchdog device controlled through GPIO-line"
118         depends on OF_GPIO
119         select WATCHDOG_CORE
120         help
121           If you say yes here you get support for watchdog device
122           controlled through GPIO-line.
123 
124 config GPIO_WATCHDOG_ARCH_INITCALL
125         bool "Register the watchdog as early as possible"
126         depends on GPIO_WATCHDOG=y
127         help
128           In some situations, the default initcall level (module_init)
129           in not early enough in the boot process to avoid the watchdog
130           to be triggered.
131           If you say yes here, the initcall level would be raised to
132           arch_initcall.
133           If in doubt, say N.
134 
135 config MENF21BMC_WATCHDOG
136         tristate "MEN 14F021P00 BMC Watchdog"
137         depends on MFD_MENF21BMC
138         select WATCHDOG_CORE
139         help
140           Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
141 
142           This driver can also be built as a module. If so the module
143           will be called menf21bmc_wdt.
144 
145 config TANGOX_WATCHDOG
146         tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
147         select WATCHDOG_CORE
148         depends on ARCH_TANGO || COMPILE_TEST
149         depends on HAS_IOMEM
150         help
151           Support for the watchdog in Sigma Designs SMP86xx (tango3)
152           and SMP87xx (tango4) family chips.
153 
154           This driver can be built as a module. The module name is tangox_wdt.
155 
156 config WM831X_WATCHDOG
157         tristate "WM831x watchdog"
158         depends on MFD_WM831X
159         select WATCHDOG_CORE
160         help
161           Support for the watchdog in the WM831x AudioPlus PMICs.  When
162           the watchdog triggers the system will be reset.
163 
164 config WM8350_WATCHDOG
165         tristate "WM8350 watchdog"
166         depends on MFD_WM8350
167         select WATCHDOG_CORE
168         help
169           Support for the watchdog in the WM8350 AudioPlus PMIC.  When
170           the watchdog triggers the system will be reset.
171 
172 config XILINX_WATCHDOG
173         tristate "Xilinx Watchdog timer"
174         depends on HAS_IOMEM
175         select WATCHDOG_CORE
176         help
177           Watchdog driver for the xps_timebase_wdt ip core.
178 
179           To compile this driver as a module, choose M here: the
180           module will be called of_xilinx_wdt.
181 
182 config ZIIRAVE_WATCHDOG
183         tristate "Zodiac RAVE Watchdog Timer"
184         depends on I2C
185         select WATCHDOG_CORE
186         help
187           Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
188           Processor.
189 
190           To compile this driver as a module, choose M here: the
191           module will be called ziirave_wdt.
192 
193 # ALPHA Architecture
194 
195 # ARM Architecture
196 
197 config ARM_SP805_WATCHDOG
198         tristate "ARM SP805 Watchdog"
199         depends on (ARM || ARM64) && ARM_AMBA
200         select WATCHDOG_CORE
201         help
202           ARM Primecell SP805 Watchdog timer. This will reboot your system when
203           the timeout is reached.
204 
205 config ARM_SBSA_WATCHDOG
206         tristate "ARM SBSA Generic Watchdog"
207         depends on ARM64
208         depends on ARM_ARCH_TIMER
209         select WATCHDOG_CORE
210         help
211           ARM SBSA Generic Watchdog has two stage timeouts:
212           the first signal (WS0) is for alerting the system by interrupt,
213           the second one (WS1) is a real hardware reset.
214           More details: ARM DEN0029B - Server Base System Architecture (SBSA)
215 
216           This driver can operate ARM SBSA Generic Watchdog as a single stage
217           or a two stages watchdog, it depends on the module parameter "action".
218 
219           Note: the maximum timeout in the two stages mode is half of that in
220           the single stage mode.
221 
222           To compile this driver as module, choose M here: The module
223           will be called sbsa_gwdt.
224 
225 config ASM9260_WATCHDOG
226         tristate "Alphascale ASM9260 watchdog"
227         depends on MACH_ASM9260
228         depends on OF
229         select WATCHDOG_CORE
230         select RESET_CONTROLLER
231         help
232           Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
233           system when the timeout is reached.
234 
235 config AT91RM9200_WATCHDOG
236         tristate "AT91RM9200 watchdog"
237         depends on SOC_AT91RM9200 && MFD_SYSCON
238         help
239           Watchdog timer embedded into AT91RM9200 chips. This will reboot your
240           system when the timeout is reached.
241 
242 config AT91SAM9X_WATCHDOG
243         tristate "AT91SAM9X / AT91CAP9 watchdog"
244         depends on ARCH_AT91
245         select WATCHDOG_CORE
246         help
247           Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
248           reboot your system when the timeout is reached.
249 
250 config SAMA5D4_WATCHDOG
251         tristate "Atmel SAMA5D4 Watchdog Timer"
252         depends on ARCH_AT91
253         select WATCHDOG_CORE
254         help
255           Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
256           Its Watchdog Timer Mode Register can be written more than once.
257           This will reboot your system when the timeout is reached.
258 
259 config CADENCE_WATCHDOG
260         tristate "Cadence Watchdog Timer"
261         depends on HAS_IOMEM
262         select WATCHDOG_CORE
263         help
264           Say Y here if you want to include support for the watchdog
265           timer in the Xilinx Zynq.
266 
267 config 21285_WATCHDOG
268         tristate "DC21285 watchdog"
269         depends on FOOTBRIDGE
270         help
271           The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
272           here if you wish to use this. Alternatively say M to compile the
273           driver as a module, which will be called wdt285.
274 
275           This driver does not work on all machines. In particular, early CATS
276           boards have hardware problems that will cause the machine to simply
277           lock up if the watchdog fires.
278 
279           "If in doubt, leave it out" - say N.
280 
281 config 977_WATCHDOG
282         tristate "NetWinder WB83C977 watchdog"
283         depends on FOOTBRIDGE && ARCH_NETWINDER
284         help
285           Say Y here to include support for the WB977 watchdog included in
286           NetWinder machines. Alternatively say M to compile the driver as
287           a module, which will be called wdt977.
288 
289           Not sure? It's safe to say N.
290 
291 config IXP4XX_WATCHDOG
292         tristate "IXP4xx Watchdog"
293         depends on ARCH_IXP4XX
294         help
295           Say Y here if to include support for the watchdog timer
296           in the Intel IXP4xx network processors. This driver can
297           be built as a module by choosing M. The module will
298           be called ixp4xx_wdt.
299 
300           Note: The internal IXP4xx watchdog does a soft CPU reset
301           which doesn't reset any peripherals. There are circumstances
302           where the watchdog will fail to reset the board correctly
303           (e.g., if the boot ROM is in an unreadable state).
304 
305           Say N if you are unsure.
306 
307 config KS8695_WATCHDOG
308         tristate "KS8695 watchdog"
309         depends on ARCH_KS8695
310         help
311           Watchdog timer embedded into KS8695 processor. This will reboot your
312           system when the timeout is reached.
313 
314 config HAVE_S3C2410_WATCHDOG
315         bool
316         help
317           This will include watchdog timer support for Samsung SoCs. If
318           you want to include watchdog support for any machine, kindly
319           select this in the respective mach-XXXX/Kconfig file.
320 
321 config S3C2410_WATCHDOG
322         tristate "S3C2410 Watchdog"
323         depends on HAVE_S3C2410_WATCHDOG
324         select WATCHDOG_CORE
325         select MFD_SYSCON if ARCH_EXYNOS5
326         help
327           Watchdog timer block in the Samsung SoCs. This will reboot
328           the system when the timer expires with the watchdog enabled.
329 
330           The driver is limited by the speed of the system's PCLK
331           signal, so with reasonably fast systems (PCLK around 50-66MHz)
332           then watchdog intervals of over approximately 20seconds are
333           unavailable.
334 
335           The driver can be built as a module by choosing M, and will
336           be called s3c2410_wdt
337 
338 config SA1100_WATCHDOG
339         tristate "SA1100/PXA2xx watchdog"
340         depends on ARCH_SA1100 || ARCH_PXA
341         help
342           Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
343           reboot your system when timeout is reached.
344 
345           NOTE: once enabled, this timer cannot be disabled.
346 
347           To compile this driver as a module, choose M here: the
348           module will be called sa1100_wdt.
349 
350 config DW_WATCHDOG
351         tristate "Synopsys DesignWare watchdog"
352         depends on HAS_IOMEM
353         select WATCHDOG_CORE
354         help
355           Say Y here if to include support for the Synopsys DesignWare
356           watchdog timer found in many chips.
357           To compile this driver as a module, choose M here: the
358           module will be called dw_wdt.
359 
360 config EP93XX_WATCHDOG
361         tristate "EP93xx Watchdog"
362         depends on ARCH_EP93XX
363         select WATCHDOG_CORE
364         help
365           Say Y here if to include support for the watchdog timer
366           embedded in the Cirrus Logic EP93xx family of devices.
367 
368           To compile this driver as a module, choose M here: the
369           module will be called ep93xx_wdt.
370 
371 config OMAP_WATCHDOG
372         tristate "OMAP Watchdog"
373         depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
374         select WATCHDOG_CORE
375         help
376           Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
377           here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
378 
379 config PNX4008_WATCHDOG
380         tristate "LPC32XX Watchdog"
381         depends on ARCH_LPC32XX
382         select WATCHDOG_CORE
383         help
384           Say Y here if to include support for the watchdog timer
385           in the LPC32XX processor.
386           This driver can be built as a module by choosing M. The module
387           will be called pnx4008_wdt.
388 
389           Say N if you are unsure.
390 
391 config IOP_WATCHDOG
392         tristate "IOP Watchdog"
393         depends on ARCH_IOP13XX
394         select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
395         help
396           Say Y here if to include support for the watchdog timer
397           in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
398           be built as a module by choosing M. The module will
399           be called iop_wdt.
400 
401           Note: The IOP13XX watchdog does an Internal Bus Reset which will
402           affect both cores and the peripherals of the IOP.  The ATU-X
403           and/or ATUe configuration registers will remain intact, but if
404           operating as an Root Complex and/or Central Resource, the PCI-X
405           and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
406 
407 config DAVINCI_WATCHDOG
408         tristate "DaVinci watchdog"
409         depends on ARCH_DAVINCI || ARCH_KEYSTONE
410         select WATCHDOG_CORE
411         help
412           Say Y here if to include support for the watchdog timer
413           in the DaVinci DM644x/DM646x or Keystone processors.
414           To compile this driver as a module, choose M here: the
415           module will be called davinci_wdt.
416 
417           NOTE: once enabled, this timer cannot be disabled.
418           Say N if you are unsure.
419 
420 config ORION_WATCHDOG
421         tristate "Orion watchdog"
422         depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
423         depends on ARM
424         select WATCHDOG_CORE
425         help
426           Say Y here if to include support for the watchdog timer
427           in the Marvell Orion5x and Kirkwood ARM SoCs.
428           To compile this driver as a module, choose M here: the
429           module will be called orion_wdt.
430 
431 config RN5T618_WATCHDOG
432         tristate "Ricoh RN5T618 watchdog"
433         depends on MFD_RN5T618
434         select WATCHDOG_CORE
435         help
436           If you say yes here you get support for watchdog on the Ricoh
437           RN5T618 PMIC.
438 
439           This driver can also be built as a module.  If so, the module
440           will be called rn5t618_wdt.
441 
442 config SUNXI_WATCHDOG
443         tristate "Allwinner SoCs watchdog support"
444         depends on ARCH_SUNXI
445         select WATCHDOG_CORE
446         help
447           Say Y here to include support for the watchdog timer
448           in Allwinner SoCs.
449           To compile this driver as a module, choose M here: the
450           module will be called sunxi_wdt.
451 
452 config COH901327_WATCHDOG
453         bool "ST-Ericsson COH 901 327 watchdog"
454         depends on ARCH_U300
455         default y if MACH_U300
456         select WATCHDOG_CORE
457         help
458           Say Y here to include Watchdog timer support for the
459           watchdog embedded into the ST-Ericsson U300 series platforms.
460           This watchdog is used to reset the system and thus cannot be
461           compiled as a module.
462 
463 config TWL4030_WATCHDOG
464         tristate "TWL4030 Watchdog"
465         depends on TWL4030_CORE
466         select WATCHDOG_CORE
467         help
468           Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
469           watchdog timer support for TWL4030 chips.
470 
471 config STMP3XXX_RTC_WATCHDOG
472         tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
473         depends on RTC_DRV_STMP
474         select WATCHDOG_CORE
475         help
476           Say Y here to include support for the watchdog timer inside
477           the RTC for the STMP37XX/378X or i.MX23/28 SoC.
478           To compile this driver as a module, choose M here: the
479           module will be called stmp3xxx_rtc_wdt.
480 
481 config NUC900_WATCHDOG
482         tristate "Nuvoton NUC900 watchdog"
483         depends on ARCH_W90X900
484         help
485           Say Y here if to include support for the watchdog timer
486           for the Nuvoton NUC900 series SoCs.
487           To compile this driver as a module, choose M here: the
488           module will be called nuc900_wdt.
489 
490 config TS4800_WATCHDOG
491         tristate "TS-4800 Watchdog"
492         depends on HAS_IOMEM && OF
493         depends on SOC_IMX51 || COMPILE_TEST
494         select WATCHDOG_CORE
495         select MFD_SYSCON
496         help
497           Technologic Systems TS-4800 has watchdog timer implemented in
498           an external FPGA. Say Y here if you want to support for the
499           watchdog timer on TS-4800 board.
500 
501 config TS72XX_WATCHDOG
502         tristate "TS-72XX SBC Watchdog"
503         depends on MACH_TS72XX
504         help
505           Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
506           watchdog timer implemented in a external CPLD chip. Say Y here
507           if you want to support for the watchdog timer on TS-72XX boards.
508 
509           To compile this driver as a module, choose M here: the
510           module will be called ts72xx_wdt.
511 
512 config MAX63XX_WATCHDOG
513         tristate "Max63xx watchdog"
514         depends on HAS_IOMEM
515         select WATCHDOG_CORE
516         help
517           Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
518 
519 config IMX2_WDT
520         tristate "IMX2+ Watchdog"
521         depends on ARCH_MXC || ARCH_LAYERSCAPE
522         select REGMAP_MMIO
523         select WATCHDOG_CORE
524         help
525           This is the driver for the hardware watchdog
526           on the Freescale IMX2 and later processors.
527           If you have one of these processors and wish to have
528           watchdog support enabled, say Y, otherwise say N.
529 
530           To compile this driver as a module, choose M here: the
531           module will be called imx2_wdt.
532 
533 config UX500_WATCHDOG
534         tristate "ST-Ericsson Ux500 watchdog"
535         depends on MFD_DB8500_PRCMU
536         select WATCHDOG_CORE
537         default y
538         help
539           Say Y here to include Watchdog timer support for the watchdog
540           existing in the prcmu of ST-Ericsson Ux500 series platforms.
541 
542           To compile this driver as a module, choose M here: the
543           module will be called ux500_wdt.
544 
545 config RETU_WATCHDOG
546         tristate "Retu watchdog"
547         depends on MFD_RETU
548         select WATCHDOG_CORE
549         help
550           Retu watchdog driver for Nokia Internet Tablets (770, N800,
551           N810). At least on N800 the watchdog cannot be disabled, so
552           this driver is essential and you should enable it.
553 
554           To compile this driver as a module, choose M here: the
555           module will be called retu_wdt.
556 
557 config MOXART_WDT
558         tristate "MOXART watchdog"
559         depends on ARCH_MOXART
560         help
561           Say Y here to include Watchdog timer support for the watchdog
562           existing on the MOXA ART SoC series platforms.
563 
564           To compile this driver as a module, choose M here: the
565           module will be called moxart_wdt.
566 
567 config SIRFSOC_WATCHDOG
568         tristate "SiRFSOC watchdog"
569         depends on ARCH_SIRF
570         select WATCHDOG_CORE
571         default y
572         help
573           Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
574           the watchdog triggers the system will be reset.
575 
576 config ST_LPC_WATCHDOG
577         tristate "STMicroelectronics LPC Watchdog"
578         depends on ARCH_STI
579         depends on OF
580         select WATCHDOG_CORE
581         help
582           Say Y here to include STMicroelectronics Low Power Controller
583           (LPC) based Watchdog timer support.
584 
585           To compile this driver as a module, choose M here: the
586           module will be called st_lpc_wdt.
587 
588 config TEGRA_WATCHDOG
589         tristate "Tegra watchdog"
590         depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
591         select WATCHDOG_CORE
592         help
593           Say Y here to include support for the watchdog timer
594           embedded in NVIDIA Tegra SoCs.
595 
596           To compile this driver as a module, choose M here: the
597           module will be called tegra_wdt.
598 
599 config QCOM_WDT
600         tristate "QCOM watchdog"
601         depends on HAS_IOMEM
602         depends on ARCH_QCOM
603         select WATCHDOG_CORE
604         help
605           Say Y here to include Watchdog timer support for the watchdog found
606           on QCOM chipsets.  Currently supported targets are the MSM8960,
607           APQ8064, and IPQ8064.
608 
609           To compile this driver as a module, choose M here: the
610           module will be called qcom_wdt.
611 
612 config MESON_WATCHDOG
613         tristate "Amlogic Meson SoCs watchdog support"
614         depends on ARCH_MESON
615         select WATCHDOG_CORE
616         help
617           Say Y here to include support for the watchdog timer
618           in Amlogic Meson SoCs.
619           To compile this driver as a module, choose M here: the
620           module will be called meson_wdt.
621 
622 config MEDIATEK_WATCHDOG
623         tristate "Mediatek SoCs watchdog support"
624         depends on ARCH_MEDIATEK
625         select WATCHDOG_CORE
626         help
627           Say Y here to include support for the watchdog timer
628           in Mediatek SoCs.
629           To compile this driver as a module, choose M here: the
630           module will be called mtk_wdt.
631 
632 config DIGICOLOR_WATCHDOG
633         tristate "Conexant Digicolor SoCs watchdog support"
634         depends on ARCH_DIGICOLOR
635         select WATCHDOG_CORE
636         help
637           Say Y here to include support for the watchdog timer
638           in Conexant Digicolor SoCs.
639           To compile this driver as a module, choose M here: the
640           module will be called digicolor_wdt.
641 
642 config LPC18XX_WATCHDOG
643         tristate "LPC18xx/43xx Watchdog"
644         depends on ARCH_LPC18XX || COMPILE_TEST
645         depends on HAS_IOMEM
646         select WATCHDOG_CORE
647         help
648           Say Y here if to include support for the watchdog timer
649           in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
650           processors.
651           To compile this driver as a module, choose M here: the
652           module will be called lpc18xx_wdt.
653 
654 config ATLAS7_WATCHDOG
655         tristate "CSRatlas7 watchdog"
656         depends on ARCH_ATLAS7
657         help
658           Say Y here to include Watchdog timer support for the watchdog
659           existing on the CSRatlas7 series platforms.
660 
661           To compile this driver as a module, choose M here: the
662           module will be called atlas7_wdt.
663 
664 config RENESAS_WDT
665         tristate "Renesas WDT Watchdog"
666         depends on ARCH_RENESAS || COMPILE_TEST
667         select WATCHDOG_CORE
668         help
669           This driver adds watchdog support for the integrated watchdogs in the
670           Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
671 
672 # AVR32 Architecture
673 
674 config AT32AP700X_WDT
675         tristate "AT32AP700x watchdog"
676         depends on CPU_AT32AP700X
677         help
678           Watchdog timer embedded into AT32AP700x devices. This will reboot
679           your system when the timeout is reached.
680 
681 # BLACKFIN Architecture
682 
683 config BFIN_WDT
684         tristate "Blackfin On-Chip Watchdog Timer"
685         depends on BLACKFIN
686         ---help---
687           If you say yes here you will get support for the Blackfin On-Chip
688           Watchdog Timer. If you have one of these processors and wish to
689           have watchdog support enabled, say Y, otherwise say N.
690 
691           To compile this driver as a module, choose M here: the
692           module will be called bfin_wdt.
693 
694 # CRIS Architecture
695 
696 # FRV Architecture
697 
698 # X86 (i386 + ia64 + x86_64) Architecture
699 
700 config ACQUIRE_WDT
701         tristate "Acquire SBC Watchdog Timer"
702         depends on X86
703         ---help---
704           This is the driver for the hardware watchdog on Single Board
705           Computers produced by Acquire Inc (and others). This watchdog
706           simply watches your kernel to make sure it doesn't freeze, and if
707           it does, it reboots your computer after a certain amount of time.
708 
709           To compile this driver as a module, choose M here: the
710           module will be called acquirewdt.
711 
712           Most people will say N.
713 
714 config ADVANTECH_WDT
715         tristate "Advantech SBC Watchdog Timer"
716         depends on X86
717         help
718           If you are configuring a Linux kernel for the Advantech single-board
719           computer, say `Y' here to support its built-in watchdog timer
720           feature. More information can be found at
721           <http://www.advantech.com.tw/products/>
722 
723 config ALIM1535_WDT
724         tristate "ALi M1535 PMU Watchdog Timer"
725         depends on X86 && PCI
726         ---help---
727           This is the driver for the hardware watchdog on the ALi M1535 PMU.
728 
729           To compile this driver as a module, choose M here: the
730           module will be called alim1535_wdt.
731 
732           Most people will say N.
733 
734 config ALIM7101_WDT
735         tristate "ALi M7101 PMU Computer Watchdog"
736         depends on PCI
737         help
738           This is the driver for the hardware watchdog on the ALi M7101 PMU
739           as used in the x86 Cobalt servers and also found in some
740           SPARC Netra servers too.
741 
742           To compile this driver as a module, choose M here: the
743           module will be called alim7101_wdt.
744 
745           Most people will say N.
746 
747 config EBC_C384_WDT
748         tristate "WinSystems EBC-C384 Watchdog Timer"
749         depends on X86 && ISA_BUS_API
750         select WATCHDOG_CORE
751         help
752           Enables watchdog timer support for the watchdog timer on the
753           WinSystems EBC-C384 motherboard. The timeout may be configured via
754           the timeout module parameter.
755 
756 config F71808E_WDT
757         tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
758         depends on X86
759         help
760           This is the driver for the hardware watchdog on the Fintek
761           F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
762 
763           You can compile this driver directly into the kernel, or use
764           it as a module.  The module will be called f71808e_wdt.
765 
766 config SP5100_TCO
767         tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
768         depends on X86 && PCI
769         ---help---
770           Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
771           (Total Cost of Ownership) timer is a watchdog timer that will reboot
772           the machine after its expiration. The expiration time can be
773           configured with the "heartbeat" parameter.
774 
775           To compile this driver as a module, choose M here: the
776           module will be called sp5100_tco.
777 
778 config GEODE_WDT
779         tristate "AMD Geode CS5535/CS5536 Watchdog"
780         depends on CS5535_MFGPT
781         help
782           This driver enables a watchdog capability built into the
783           CS5535/CS5536 companion chips for the AMD Geode GX and LX
784           processors.  This watchdog watches your kernel to make sure
785           it doesn't freeze, and if it does, it reboots your computer after
786           a certain amount of time.
787 
788           You can compile this driver directly into the kernel, or use
789           it as a module.  The module will be called geodewdt.
790 
791 config SC520_WDT
792         tristate "AMD Elan SC520 processor Watchdog"
793         depends on MELAN
794         help
795           This is the driver for the hardware watchdog built in to the
796           AMD "Elan" SC520 microcomputer commonly used in embedded systems.
797           This watchdog simply watches your kernel to make sure it doesn't
798           freeze, and if it does, it reboots your computer after a certain
799           amount of time.
800 
801           You can compile this driver directly into the kernel, or use
802           it as a module.  The module will be called sc520_wdt.
803 
804 config SBC_FITPC2_WATCHDOG
805         tristate "Compulab SBC-FITPC2 watchdog"
806         depends on X86
807         ---help---
808           This is the driver for the built-in watchdog timer on the fit-PC2,
809           fit-PC2i, CM-iAM single-board computers made by Compulab.
810 
811           It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
812           When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
813 
814           Entering BIOS setup temporary disables watchdog operation regardless to current state,
815           so system will not be restarted while user in BIOS setup.
816 
817           Once watchdog was enabled the system will be restarted every
818           "Watchdog Timer Value" period, so to prevent it user can restart or
819           disable the watchdog.
820 
821           To compile this driver as a module, choose M here: the
822           module will be called sbc_fitpc2_wdt.
823 
824           Most people will say N.
825 
826 config EUROTECH_WDT
827         tristate "Eurotech CPU-1220/1410 Watchdog Timer"
828         depends on X86
829         help
830           Enable support for the watchdog timer on the Eurotech CPU-1220 and
831           CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
832           information are at <http://www.eurotech.it/>.
833 
834 config IB700_WDT
835         tristate "IB700 SBC Watchdog Timer"
836         depends on X86
837         ---help---
838           This is the driver for the hardware watchdog on the IB700 Single
839           Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
840           simply watches your kernel to make sure it doesn't freeze, and if
841           it does, it reboots your computer after a certain amount of time.
842 
843           This driver is like the WDT501 driver but for slightly different hardware.
844 
845           To compile this driver as a module, choose M here: the
846           module will be called ib700wdt.
847 
848           Most people will say N.
849 
850 config IBMASR
851         tristate "IBM Automatic Server Restart"
852         depends on X86
853         help
854           This is the driver for the IBM Automatic Server Restart watchdog
855           timer built-in into some eServer xSeries machines.
856 
857           To compile this driver as a module, choose M here: the
858           module will be called ibmasr.
859 
860 config WAFER_WDT
861         tristate "ICP Single Board Computer Watchdog Timer"
862         depends on X86
863         help
864           This is a driver for the hardware watchdog on the ICP Single
865           Board Computer. This driver is working on (at least) the following
866           IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
867 
868           To compile this driver as a module, choose M here: the
869           module will be called wafer5823wdt.
870 
871 config I6300ESB_WDT
872         tristate "Intel 6300ESB Timer/Watchdog"
873         depends on PCI
874         ---help---
875           Hardware driver for the watchdog timer built into the Intel
876           6300ESB controller hub.
877 
878           To compile this driver as a module, choose M here: the
879           module will be called i6300esb.
880 
881 config IE6XX_WDT
882         tristate "Intel Atom E6xx Watchdog"
883         depends on X86 && PCI
884         select WATCHDOG_CORE
885         select MFD_CORE
886         select LPC_SCH
887         ---help---
888           Hardware driver for the watchdog timer built into the Intel
889           Atom E6XX (TunnelCreek) processor.
890 
891           To compile this driver as a module, choose M here: the
892           module will be called ie6xx_wdt.
893 
894 config INTEL_SCU_WATCHDOG
895         bool "Intel SCU Watchdog for Mobile Platforms"
896         depends on X86_INTEL_MID
897         ---help---
898           Hardware driver for the watchdog time built into the Intel SCU
899           for Intel Mobile Platforms.
900 
901           To compile this driver as a module, choose M here.
902 
903 config INTEL_MID_WATCHDOG
904         tristate "Intel MID Watchdog Timer"
905         depends on X86_INTEL_MID
906         select WATCHDOG_CORE
907         ---help---
908           Watchdog timer driver built into the Intel SCU for Intel MID
909           Platforms.
910 
911           This driver currently supports only the watchdog evolution
912           implementation in SCU, available for Merrifield generation.
913 
914           To compile this driver as a module, choose M here.
915 
916 config ITCO_WDT
917         tristate "Intel TCO Timer/Watchdog"
918         depends on (X86 || IA64) && PCI
919         select WATCHDOG_CORE
920         depends on I2C || I2C=n
921         select LPC_ICH if !EXPERT
922         select I2C_I801 if !EXPERT && I2C
923         ---help---
924           Hardware driver for the intel TCO timer based watchdog devices.
925           These drivers are included in the Intel 82801 I/O Controller
926           Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
927           controller hub.
928 
929           The TCO (Total Cost of Ownership) timer is a watchdog timer
930           that will reboot the machine after its second expiration. The
931           expiration time can be configured with the "heartbeat" parameter.
932 
933           On some motherboards the driver may fail to reset the chipset's
934           NO_REBOOT flag which prevents the watchdog from rebooting the
935           machine. If this is the case you will get a kernel message like
936           "failed to reset NO_REBOOT flag, reboot disabled by hardware".
937 
938           To compile this driver as a module, choose M here: the
939           module will be called iTCO_wdt.
940 
941 config ITCO_VENDOR_SUPPORT
942         bool "Intel TCO Timer/Watchdog Specific Vendor Support"
943         depends on ITCO_WDT
944         ---help---
945           Add vendor specific support to the intel TCO timer based watchdog
946           devices. At this moment we only have additional support for some
947           SuperMicro Inc. motherboards.
948 
949 config IT8712F_WDT
950         tristate "IT8712F (Smart Guardian) Watchdog Timer"
951         depends on X86
952         ---help---
953           This is the driver for the built-in watchdog timer on the IT8712F
954           Super I/0 chipset used on many motherboards.
955 
956           If the driver does not work, then make sure that the game port in
957           the BIOS is enabled.
958 
959           To compile this driver as a module, choose M here: the
960           module will be called it8712f_wdt.
961 
962 config IT87_WDT
963         tristate "IT87 Watchdog Timer"
964         depends on X86
965         ---help---
966           This is the driver for the hardware watchdog on the ITE IT8702,
967           IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
968           Super I/O chips.
969 
970           If the driver does not work, then make sure that the game port in
971           the BIOS is enabled.
972 
973           This watchdog simply watches your kernel to make sure it doesn't
974           freeze, and if it does, it reboots your computer after a certain
975           amount of time.
976 
977           To compile this driver as a module, choose M here: the module will
978           be called it87_wdt.
979 
980 config HP_WATCHDOG
981         tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
982         depends on X86 && PCI
983         help
984           A software monitoring watchdog and NMI sourcing driver. This driver
985           will detect lockups and provide a stack trace. This is a driver that
986           will only load on an HP ProLiant system with a minimum of iLO2 support.
987           To compile this driver as a module, choose M here: the module will be
988           called hpwdt.
989 
990 config KEMPLD_WDT
991         tristate "Kontron COM Watchdog Timer"
992         depends on MFD_KEMPLD
993         select WATCHDOG_CORE
994         help
995           Support for the PLD watchdog on some Kontron ETX and COMexpress
996           (ETXexpress) modules
997 
998           This driver can also be built as a module. If so, the module will be
999           called kempld_wdt.
1000 
1001 config HPWDT_NMI_DECODING
1002         bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1003         depends on HP_WATCHDOG
1004         default y
1005         help
1006           When an NMI occurs this feature will make the necessary BIOS calls to
1007           log the cause of the NMI.
1008 
1009 config SC1200_WDT
1010         tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1011         depends on X86
1012         help
1013           This is a driver for National Semiconductor PC87307/PC97307 hardware
1014           watchdog cards as found on the SC1200. This watchdog is mainly used
1015           for power management purposes and can be used to power down the device
1016           during inactivity periods (includes interrupt activity monitoring).
1017 
1018           To compile this driver as a module, choose M here: the
1019           module will be called sc1200wdt.
1020 
1021           Most people will say N.
1022 
1023 config SCx200_WDT
1024         tristate "National Semiconductor SCx200 Watchdog"
1025         depends on SCx200 && PCI
1026         help
1027           Enable the built-in watchdog timer support on the National
1028           Semiconductor SCx200 processors.
1029 
1030           If compiled as a module, it will be called scx200_wdt.
1031 
1032 config PC87413_WDT
1033         tristate "NS PC87413 watchdog"
1034         depends on X86
1035         ---help---
1036           This is the driver for the hardware watchdog on the PC87413 chipset
1037           This watchdog simply watches your kernel to make sure it doesn't
1038           freeze, and if it does, it reboots your computer after a certain
1039           amount of time.
1040 
1041           To compile this driver as a module, choose M here: the
1042           module will be called pc87413_wdt.
1043 
1044           Most people will say N.
1045 
1046 config NV_TCO
1047         tristate "nVidia TCO Timer/Watchdog"
1048         depends on X86 && PCI
1049         ---help---
1050           Hardware driver for the TCO timer built into the nVidia Hub family
1051           (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1052           watchdog timer that will reboot the machine after its second
1053           expiration. The expiration time can be configured with the
1054           "heartbeat" parameter.
1055 
1056           On some motherboards the driver may fail to reset the chipset's
1057           NO_REBOOT flag which prevents the watchdog from rebooting the
1058           machine. If this is the case you will get a kernel message like
1059           "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1060 
1061           To compile this driver as a module, choose M here: the
1062           module will be called nv_tco.
1063 
1064 config RDC321X_WDT
1065         tristate "RDC R-321x SoC watchdog"
1066         depends on X86_RDC321X
1067         help
1068           This is the driver for the built in hardware watchdog
1069           in the RDC R-321x SoC.
1070 
1071           To compile this driver as a module, choose M here: the
1072           module will be called rdc321x_wdt.
1073 
1074 config 60XX_WDT
1075         tristate "SBC-60XX Watchdog Timer"
1076         depends on X86
1077         help
1078           This driver can be used with the watchdog timer found on some
1079           single board computers, namely the 6010 PII based computer.
1080           It may well work with other cards.  It reads port 0x443 to enable
1081           and re-set the watchdog timer, and reads port 0x45 to disable
1082           the watchdog.  If you have a card that behave in similar ways,
1083           you can probably make this driver work with your card as well.
1084 
1085           You can compile this driver directly into the kernel, or use
1086           it as a module.  The module will be called sbc60xxwdt.
1087 
1088 config SBC8360_WDT
1089         tristate "SBC8360 Watchdog Timer"
1090         depends on X86_32
1091         ---help---
1092 
1093           This is the driver for the hardware watchdog on the SBC8360 Single
1094           Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1095 
1096           To compile this driver as a module, choose M here: the
1097           module will be called sbc8360.
1098 
1099           Most people will say N.
1100 
1101 config SBC7240_WDT
1102         tristate "SBC Nano 7240 Watchdog Timer"
1103         depends on X86_32 && !UML
1104         ---help---
1105           This is the driver for the hardware watchdog found on the IEI
1106           single board computers EPIC Nano 7240 (and likely others). This
1107           watchdog simply watches your kernel to make sure it doesn't freeze,
1108           and if it does, it reboots your computer after a certain amount of
1109           time.
1110 
1111           To compile this driver as a module, choose M here: the
1112           module will be called sbc7240_wdt.
1113 
1114 config CPU5_WDT
1115         tristate "SMA CPU5 Watchdog"
1116         depends on X86
1117         ---help---
1118           TBD.
1119           To compile this driver as a module, choose M here: the
1120           module will be called cpu5wdt.
1121 
1122 config SMSC_SCH311X_WDT
1123         tristate "SMSC SCH311X Watchdog Timer"
1124         depends on X86
1125         ---help---
1126           This is the driver for the hardware watchdog timer on the
1127           SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1128           (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1129           serial ports).
1130 
1131           To compile this driver as a module, choose M here: the
1132           module will be called sch311x_wdt.
1133 
1134 config SMSC37B787_WDT
1135         tristate "Winbond SMsC37B787 Watchdog Timer"
1136         depends on X86
1137         ---help---
1138           This is the driver for the hardware watchdog component on the
1139           Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1140           from Vision Systems and maybe others.
1141 
1142           This watchdog simply watches your kernel to make sure it doesn't
1143           freeze, and if it does, it reboots your computer after a certain
1144           amount of time.
1145 
1146           Usually a userspace daemon will notify the kernel WDT driver that
1147           userspace is still alive, at regular intervals.
1148 
1149           To compile this driver as a module, choose M here: the
1150           module will be called smsc37b787_wdt.
1151 
1152           Most people will say N.
1153 
1154 config VIA_WDT
1155         tristate "VIA Watchdog Timer"
1156         depends on X86 && PCI
1157         select WATCHDOG_CORE
1158         ---help---
1159         This is the driver for the hardware watchdog timer on VIA
1160         southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1161 
1162         To compile this driver as a module, choose M here; the module
1163         will be called via_wdt.
1164 
1165         Most people will say N.
1166 
1167 config W83627HF_WDT
1168         tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1169         depends on X86
1170         select WATCHDOG_CORE
1171         ---help---
1172           This is the driver for the hardware watchdog on the following
1173           Super I/O chips.
1174                 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1175                 W83637HF
1176                 W83667HG/HG-B
1177                 W83687THF
1178                 W83697HF
1179                 W83697UG
1180                 NCT6775
1181                 NCT6776
1182                 NCT6779
1183                 NCT6791
1184                 NCT6792
1185                 NCT6102D/04D/06D
1186 
1187           This watchdog simply watches your kernel to make sure it doesn't
1188           freeze, and if it does, it reboots your computer after a certain
1189           amount of time.
1190 
1191           To compile this driver as a module, choose M here: the
1192           module will be called w83627hf_wdt.
1193 
1194           Most people will say N.
1195 
1196 config W83877F_WDT
1197         tristate "W83877F (EMACS) Watchdog Timer"
1198         depends on X86
1199         ---help---
1200           This is the driver for the hardware watchdog on the W83877F chipset
1201           as used in EMACS PC-104 motherboards (and likely others).  This
1202           watchdog simply watches your kernel to make sure it doesn't freeze,
1203           and if it does, it reboots your computer after a certain amount of
1204           time.
1205 
1206           To compile this driver as a module, choose M here: the
1207           module will be called w83877f_wdt.
1208 
1209           Most people will say N.
1210 
1211 config W83977F_WDT
1212         tristate "W83977F (PCM-5335) Watchdog Timer"
1213         depends on X86
1214         ---help---
1215           This is the driver for the hardware watchdog on the W83977F I/O chip
1216           as used in AAEON's PCM-5335 SBC (and likely others).  This
1217           watchdog simply watches your kernel to make sure it doesn't freeze,
1218           and if it does, it reboots your computer after a certain amount of
1219           time.
1220 
1221           To compile this driver as a module, choose M here: the
1222           module will be called w83977f_wdt.
1223 
1224 config MACHZ_WDT
1225         tristate "ZF MachZ Watchdog"
1226         depends on X86
1227         ---help---
1228           If you are using a ZF Micro MachZ processor, say Y here, otherwise
1229           N.  This is the driver for the watchdog timer built-in on that
1230           processor using ZF-Logic interface.  This watchdog simply watches
1231           your kernel to make sure it doesn't freeze, and if it does, it
1232           reboots your computer after a certain amount of time.
1233 
1234           To compile this driver as a module, choose M here: the
1235           module will be called machzwd.
1236 
1237 config SBC_EPX_C3_WATCHDOG
1238         tristate "Winsystems SBC EPX-C3 watchdog"
1239         depends on X86
1240         ---help---
1241           This is the driver for the built-in watchdog timer on the EPX-C3
1242           Single-board computer made by Winsystems, Inc.
1243 
1244           *Note*: This hardware watchdog is not probeable and thus there
1245           is no way to know if writing to its IO address will corrupt
1246           your system or have any real effect.  The only way to be sure
1247           that this driver does what you want is to make sure you
1248           are running it on an EPX-C3 from Winsystems with the watchdog
1249           timer at IO address 0x1ee and 0x1ef.  It will write to both those
1250           IO ports.  Basically, the assumption is made that if you compile
1251           this driver into your kernel and/or load it as a module, that you
1252           know what you are doing and that you are in fact running on an
1253           EPX-C3 board!
1254 
1255           To compile this driver as a module, choose M here: the
1256           module will be called sbc_epx_c3.
1257 
1258 config INTEL_MEI_WDT
1259         tristate "Intel MEI iAMT Watchdog"
1260         depends on INTEL_MEI && X86
1261         select WATCHDOG_CORE
1262         ---help---
1263           A device driver for the Intel MEI iAMT watchdog.
1264 
1265           The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1266           Whenever the OS hangs or crashes, iAMT will send an event
1267           to any subscriber to this event. The watchdog doesn't reset the
1268           the platform.
1269 
1270           To compile this driver as a module, choose M here:
1271           the module will be called mei_wdt.
1272 
1273 config NI903X_WDT
1274         tristate "NI 903x/913x Watchdog"
1275         depends on X86 && ACPI
1276         select WATCHDOG_CORE
1277         ---help---
1278           This is the driver for the watchdog timer on the National Instruments
1279           903x/913x real-time controllers.
1280 
1281           To compile this driver as a module, choose M here: the module will be
1282           called ni903x_wdt.
1283 
1284 # M32R Architecture
1285 
1286 # M68K Architecture
1287 
1288 config M54xx_WATCHDOG
1289         tristate "MCF54xx watchdog support"
1290         depends on M548x
1291         help
1292           To compile this driver as a module, choose M here: the
1293           module will be called m54xx_wdt.
1294 
1295 # MicroBlaze Architecture
1296 
1297 # MIPS Architecture
1298 
1299 config ATH79_WDT
1300         tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1301         depends on ATH79
1302         help
1303           Hardware driver for the built-in watchdog timer on the Atheros
1304           AR71XX/AR724X/AR913X SoCs.
1305 
1306 config BCM47XX_WDT
1307         tristate "Broadcom BCM47xx Watchdog Timer"
1308         depends on BCM47XX || ARCH_BCM_5301X
1309         select WATCHDOG_CORE
1310         help
1311           Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1312 
1313 config RC32434_WDT
1314         tristate "IDT RC32434 SoC Watchdog Timer"
1315         depends on MIKROTIK_RB532
1316         help
1317           Hardware driver for the IDT RC32434 SoC built-in
1318           watchdog timer.
1319 
1320           To compile this driver as a module, choose M here: the
1321           module will be called rc32434_wdt.
1322 
1323 config INDYDOG
1324         tristate "Indy/I2 Hardware Watchdog"
1325         depends on SGI_HAS_INDYDOG
1326         help
1327           Hardware driver for the Indy's/I2's watchdog. This is a
1328           watchdog timer that will reboot the machine after a 60 second
1329           timer expired and no process has written to /dev/watchdog during
1330           that time.
1331 
1332 config JZ4740_WDT
1333         tristate "Ingenic jz4740 SoC hardware watchdog"
1334         depends on MACH_JZ4740
1335         select WATCHDOG_CORE
1336         help
1337           Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1338 
1339 config WDT_MTX1
1340         tristate "MTX-1 Hardware Watchdog"
1341         depends on MIPS_MTX1
1342         help
1343           Hardware driver for the MTX-1 boards. This is a watchdog timer that
1344           will reboot the machine after a 100 seconds timer expired.
1345 
1346 config PNX833X_WDT
1347         tristate "PNX833x Hardware Watchdog"
1348         depends on SOC_PNX8335
1349         help
1350           Hardware driver for the PNX833x's watchdog. This is a
1351           watchdog timer that will reboot the machine after a programmable
1352           timer has expired and no process has written to /dev/watchdog during
1353           that time.
1354 
1355 config SIBYTE_WDOG
1356         tristate "Sibyte SoC hardware watchdog"
1357         depends on CPU_SB1
1358         help
1359           Watchdog driver for the built in watchdog hardware in Sibyte
1360           SoC processors.  There are apparently two watchdog timers
1361           on such processors; this driver supports only the first one,
1362           because currently Linux only supports exporting one watchdog
1363           to userspace.
1364 
1365           To compile this driver as a loadable module, choose M here.
1366           The module will be called sb_wdog.
1367 
1368 config AR7_WDT
1369         tristate "TI AR7 Watchdog Timer"
1370         depends on AR7
1371         help
1372           Hardware driver for the TI AR7 Watchdog Timer.
1373 
1374 config TXX9_WDT
1375         tristate "Toshiba TXx9 Watchdog Timer"
1376         depends on CPU_TX39XX || CPU_TX49XX
1377         select WATCHDOG_CORE
1378         help
1379           Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1380 
1381 config OCTEON_WDT
1382         tristate "Cavium OCTEON SOC family Watchdog Timer"
1383         depends on CAVIUM_OCTEON_SOC
1384         default y
1385         select WATCHDOG_CORE
1386         select EXPORT_UASM if OCTEON_WDT = m
1387         help
1388           Hardware driver for OCTEON's on chip watchdog timer.
1389           Enables the watchdog for all cores running Linux. It
1390           installs a NMI handler and pokes the watchdog based on an
1391           interrupt.  On first expiration of the watchdog, the
1392           interrupt handler pokes it.  The second expiration causes an
1393           NMI that prints a message. The third expiration causes a
1394           global soft reset.
1395 
1396           When userspace has /dev/watchdog open, no poking is done
1397           from the first interrupt, it is then only poked when the
1398           device is written.
1399 
1400 config BCM63XX_WDT
1401         tristate "Broadcom BCM63xx hardware watchdog"
1402         depends on BCM63XX
1403         help
1404           Watchdog driver for the built in watchdog hardware in Broadcom
1405           BCM63xx SoC.
1406 
1407           To compile this driver as a loadable module, choose M here.
1408           The module will be called bcm63xx_wdt.
1409 
1410 config BCM2835_WDT
1411         tristate "Broadcom BCM2835 hardware watchdog"
1412         depends on ARCH_BCM2835
1413         select WATCHDOG_CORE
1414         help
1415           Watchdog driver for the built in watchdog hardware in Broadcom
1416           BCM2835 SoC.
1417 
1418           To compile this driver as a loadable module, choose M here.
1419           The module will be called bcm2835_wdt.
1420 
1421 config BCM_KONA_WDT
1422         tristate "BCM Kona Watchdog"
1423         depends on ARCH_BCM_MOBILE
1424         select WATCHDOG_CORE
1425         help
1426           Support for the watchdog timer on the following Broadcom BCM281xx
1427           family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1428           BCM28155 variants.
1429 
1430           Say 'Y' or 'M' here to enable the driver. The module will be called
1431           bcm_kona_wdt.
1432 
1433 config BCM_KONA_WDT_DEBUG
1434         bool "DEBUGFS support for BCM Kona Watchdog"
1435         depends on BCM_KONA_WDT
1436         help
1437           If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1438           access to the driver's internal data structures as well as watchdog
1439           timer hardware registres.
1440 
1441           If in doubt, say 'N'.
1442 
1443 config BCM7038_WDT
1444         tristate "BCM7038 Watchdog"
1445         select WATCHDOG_CORE
1446         depends on HAS_IOMEM
1447         depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1448         help
1449          Watchdog driver for the built-in hardware in Broadcom 7038 and
1450          later SoCs used in set-top boxes.  BCM7038 was made public
1451          during the 2004 CES, and since then, many Broadcom chips use this
1452          watchdog block, including some cable modem chips.
1453 
1454 config IMGPDC_WDT
1455         tristate "Imagination Technologies PDC Watchdog Timer"
1456         depends on HAS_IOMEM
1457         depends on METAG || MIPS || COMPILE_TEST
1458         select WATCHDOG_CORE
1459         help
1460           Driver for Imagination Technologies PowerDown Controller
1461           Watchdog Timer.
1462 
1463           To compile this driver as a loadable module, choose M here.
1464           The module will be called imgpdc_wdt.
1465 
1466 config LANTIQ_WDT
1467         tristate "Lantiq SoC watchdog"
1468         depends on LANTIQ
1469         help
1470           Hardware driver for the Lantiq SoC Watchdog Timer.
1471 
1472 config RALINK_WDT
1473         tristate "Ralink SoC watchdog"
1474         select WATCHDOG_CORE
1475         depends on RALINK
1476         help
1477           Hardware driver for the Ralink SoC Watchdog Timer.
1478 
1479 config MT7621_WDT
1480         tristate "Mediatek SoC watchdog"
1481         select WATCHDOG_CORE
1482         depends on SOC_MT7620 || SOC_MT7621
1483         help
1484           Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1485 
1486 config PIC32_WDT
1487         tristate "Microchip PIC32 hardware watchdog"
1488         select WATCHDOG_CORE
1489         depends on MACH_PIC32
1490         help
1491           Watchdog driver for the built in watchdog hardware in a PIC32.
1492 
1493           Configuration bits must be set appropriately for the watchdog to be
1494           controlled by this driver.
1495 
1496           To compile this driver as a loadable module, choose M here.
1497           The module will be called pic32-wdt.
1498 
1499 config PIC32_DMT
1500         tristate "Microchip PIC32 Deadman Timer"
1501         select WATCHDOG_CORE
1502         depends on MACH_PIC32
1503         help
1504           Watchdog driver for PIC32 instruction fetch counting timer. This specific
1505           timer is typically be used in misson critical and safety critical
1506           applications, where any single failure of the software functionality
1507           and sequencing must be detected.
1508 
1509           To compile this driver as a loadable module, choose M here.
1510           The module will be called pic32-dmt.
1511 
1512 # PARISC Architecture
1513 
1514 # POWERPC Architecture
1515 
1516 config GEF_WDT
1517         tristate "GE Watchdog Timer"
1518         depends on GE_FPGA
1519         ---help---
1520           Watchdog timer found in a number of GE single board computers.
1521 
1522 config MPC5200_WDT
1523         bool "MPC52xx Watchdog Timer"
1524         depends on PPC_MPC52xx
1525         help
1526           Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1527 
1528 config 8xxx_WDT
1529         tristate "MPC8xxx Platform Watchdog Timer"
1530         depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1531         select WATCHDOG_CORE
1532         help
1533           This driver is for a SoC level watchdog that exists on some
1534           Freescale PowerPC processors. So far this driver supports:
1535           - MPC8xx watchdogs
1536           - MPC83xx watchdogs
1537           - MPC86xx watchdogs
1538 
1539           For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1540 
1541 config MV64X60_WDT
1542         tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1543         depends on MV64X60
1544 
1545 config PIKA_WDT
1546         tristate "PIKA FPGA Watchdog"
1547         depends on WARP
1548         default y
1549         help
1550           This enables the watchdog in the PIKA FPGA. Currently used on
1551           the Warp platform.
1552 
1553 config BOOKE_WDT
1554         tristate "PowerPC Book-E Watchdog Timer"
1555         depends on BOOKE || 4xx
1556         select WATCHDOG_CORE
1557         ---help---
1558           Watchdog driver for PowerPC Book-E chips, such as the Freescale
1559           MPC85xx SOCs and the IBM PowerPC 440.
1560 
1561           Please see Documentation/watchdog/watchdog-api.txt for
1562           more information.
1563 
1564 config BOOKE_WDT_DEFAULT_TIMEOUT
1565         int "PowerPC Book-E Watchdog Timer Default Timeout"
1566         depends on BOOKE_WDT
1567         default 38 if PPC_FSL_BOOK3E
1568         range 0 63 if PPC_FSL_BOOK3E
1569         default 3 if !PPC_FSL_BOOK3E
1570         range 0 3 if !PPC_FSL_BOOK3E
1571         help
1572           Select the default watchdog timer period to be used by the PowerPC
1573           Book-E watchdog driver.  A watchdog "event" occurs when the bit
1574           position represented by this number transitions from zero to one.
1575 
1576           For Freescale Book-E processors, this is a number between 0 and 63.
1577           For other Book-E processors, this is a number between 0 and 3.
1578 
1579           The value can be overridden by the wdt_period command-line parameter.
1580 
1581 config MEN_A21_WDT
1582        tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1583        select WATCHDOG_CORE
1584        depends on GPIOLIB || COMPILE_TEST
1585        help
1586         Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1587 
1588         The driver can also be built as a module. If so, the module will be
1589         called mena21_wdt.
1590 
1591         If unsure select N here.
1592 
1593 # PPC64 Architecture
1594 
1595 config WATCHDOG_RTAS
1596         tristate "RTAS watchdog"
1597         depends on PPC_RTAS
1598         help
1599           This driver adds watchdog support for the RTAS watchdog.
1600 
1601           To compile this driver as a module, choose M here. The module
1602           will be called wdrtas.
1603 
1604 # S390 Architecture
1605 
1606 config DIAG288_WATCHDOG
1607         tristate "System z diag288 Watchdog"
1608         depends on S390
1609         select WATCHDOG_CORE
1610         help
1611           IBM s/390 and zSeries machines running under z/VM 5.1 or later
1612           provide a virtual watchdog timer to their guest that cause a
1613           user define Control Program command to be executed after a
1614           timeout.
1615           LPAR provides a very similar interface. This driver handles
1616           both.
1617 
1618           To compile this driver as a module, choose M here. The module
1619           will be called diag288_wdt.
1620 
1621 # SUPERH (sh + sh64) Architecture
1622 
1623 config SH_WDT
1624         tristate "SuperH Watchdog"
1625         depends on SUPERH && (CPU_SH3 || CPU_SH4)
1626         select WATCHDOG_CORE
1627         help
1628           This driver adds watchdog support for the integrated watchdog in the
1629           SuperH processors. If you have one of these processors and wish
1630           to have watchdog support enabled, say Y, otherwise say N.
1631 
1632           As a side note, saying Y here will automatically boost HZ to 1000
1633           so that the timer has a chance to clear the overflow counter. On
1634           slower systems (such as the SH-2 and SH-3) this will likely yield
1635           some performance issues. As such, the WDT should be avoided here
1636           unless it is absolutely necessary.
1637 
1638           To compile this driver as a module, choose M here: the
1639           module will be called shwdt.
1640 
1641 # SPARC Architecture
1642 
1643 # SPARC64 Architecture
1644 
1645 config WATCHDOG_CP1XXX
1646         tristate "CP1XXX Hardware Watchdog support"
1647         depends on SPARC64 && PCI
1648         ---help---
1649           This is the driver for the hardware watchdog timers present on
1650           Sun Microsystems CompactPCI models CP1400 and CP1500.
1651 
1652           To compile this driver as a module, choose M here: the
1653           module will be called cpwatchdog.
1654 
1655           If you do not have a CompactPCI model CP1400 or CP1500, or
1656           another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1657           you should say N to this option.
1658 
1659 config WATCHDOG_RIO
1660         tristate "RIO Hardware Watchdog support"
1661         depends on SPARC64 && PCI
1662         help
1663           Say Y here to support the hardware watchdog capability on Sun RIO
1664           machines.  The watchdog timeout period is normally one minute but
1665           can be changed with a boot-time parameter.
1666 
1667 config WATCHDOG_SUN4V
1668         tristate "Sun4v Watchdog support"
1669         select WATCHDOG_CORE
1670         depends on SPARC64
1671         help
1672           Say Y here to support the hypervisor watchdog capability embedded
1673           in the SPARC sun4v architecture.
1674 
1675           To compile this driver as a module, choose M here. The module will
1676           be called sun4v_wdt.
1677 
1678 # XTENSA Architecture
1679 
1680 # Xen Architecture
1681 
1682 config XEN_WDT
1683         tristate "Xen Watchdog support"
1684         depends on XEN
1685         help
1686           Say Y here to support the hypervisor watchdog capability provided
1687           by Xen 4.0 and newer.  The watchdog timeout period is normally one
1688           minute but can be changed with a boot-time parameter.
1689 
1690 config UML_WATCHDOG
1691         tristate "UML watchdog"
1692         depends on UML
1693 
1694 #
1695 # ISA-based Watchdog Cards
1696 #
1697 
1698 comment "ISA-based Watchdog Cards"
1699         depends on ISA
1700 
1701 config PCWATCHDOG
1702         tristate "Berkshire Products ISA-PC Watchdog"
1703         depends on ISA
1704         ---help---
1705           This is the driver for the Berkshire Products ISA-PC Watchdog card.
1706           This card simply watches your kernel to make sure it doesn't freeze,
1707           and if it does, it reboots your computer after a certain amount of
1708           time. This driver is like the WDT501 driver but for different
1709           hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1710           watchdog cards can be ordered from <http://www.berkprod.com/>.
1711 
1712           To compile this driver as a module, choose M here: the
1713           module will be called pcwd.
1714 
1715           Most people will say N.
1716 
1717 config MIXCOMWD
1718         tristate "Mixcom Watchdog"
1719         depends on ISA
1720         ---help---
1721           This is a driver for the Mixcom hardware watchdog cards.  This
1722           watchdog simply watches your kernel to make sure it doesn't freeze,
1723           and if it does, it reboots your computer after a certain amount of
1724           time.
1725 
1726           To compile this driver as a module, choose M here: the
1727           module will be called mixcomwd.
1728 
1729           Most people will say N.
1730 
1731 config WDT
1732         tristate "WDT Watchdog timer"
1733         depends on ISA
1734         ---help---
1735           If you have a WDT500P or WDT501P watchdog board, say Y here,
1736           otherwise N. It is not possible to probe for this board, which means
1737           that you have to inform the kernel about the IO port and IRQ that
1738           is needed (you can do this via the io and irq parameters)
1739 
1740           To compile this driver as a module, choose M here: the
1741           module will be called wdt.
1742 
1743 #
1744 # PCI-based Watchdog Cards
1745 #
1746 
1747 comment "PCI-based Watchdog Cards"
1748         depends on PCI
1749 
1750 config PCIPCWATCHDOG
1751         tristate "Berkshire Products PCI-PC Watchdog"
1752         depends on PCI
1753         ---help---
1754           This is the driver for the Berkshire Products PCI-PC Watchdog card.
1755           This card simply watches your kernel to make sure it doesn't freeze,
1756           and if it does, it reboots your computer after a certain amount of
1757           time. The card can also monitor the internal temperature of the PC.
1758           More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1759 
1760           To compile this driver as a module, choose M here: the
1761           module will be called pcwd_pci.
1762 
1763           Most people will say N.
1764 
1765 config WDTPCI
1766         tristate "PCI-WDT500/501 Watchdog timer"
1767         depends on PCI
1768         ---help---
1769           If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1770 
1771           If you have a PCI-WDT501 watchdog board then you can enable the
1772           temperature sensor by setting the type parameter to 501.
1773 
1774           If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1775           can do this via the tachometer parameter. Only do this if you have a
1776           fan tachometer actually set up.
1777 
1778           To compile this driver as a module, choose M here: the
1779           module will be called wdt_pci.
1780 
1781 #
1782 # USB-based Watchdog Cards
1783 #
1784 
1785 comment "USB-based Watchdog Cards"
1786         depends on USB
1787 
1788 config USBPCWATCHDOG
1789         tristate "Berkshire Products USB-PC Watchdog"
1790         depends on USB
1791         ---help---
1792           This is the driver for the Berkshire Products USB-PC Watchdog card.
1793           This card simply watches your kernel to make sure it doesn't freeze,
1794           and if it does, it reboots your computer after a certain amount of
1795           time. The card can also monitor the internal temperature of the PC.
1796           More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1797 
1798           To compile this driver as a module, choose M here: the
1799           module will be called pcwd_usb.
1800 
1801           Most people will say N.
1802 
1803 endif # WATCHDOG

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