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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         help
 52           Say Y here if you want to enable watchdog device status read through
 53           sysfs attributes.
 54 
 55 #
 56 # General Watchdog drivers
 57 #
 58 
 59 comment "Watchdog Device Drivers"
 60 
 61 # Architecture Independent
 62 
 63 config SOFT_WATCHDOG
 64         tristate "Software watchdog"
 65         select WATCHDOG_CORE
 66         help
 67           A software monitoring watchdog. This will fail to reboot your system
 68           from some situations that the hardware watchdog will recover
 69           from. Equally it's a lot cheaper to install.
 70 
 71           To compile this driver as a module, choose M here: the
 72           module will be called softdog.
 73 
 74 config DA9052_WATCHDOG
 75         tristate "Dialog DA9052 Watchdog"
 76         depends on PMIC_DA9052
 77         select WATCHDOG_CORE
 78         help
 79           Support for the watchdog in the DA9052 PMIC. Watchdog trigger
 80           cause system reset.
 81 
 82           Say Y here to include support for the DA9052 watchdog.
 83           Alternatively say M to compile the driver as a module,
 84           which will be called da9052_wdt.
 85 
 86 config DA9055_WATCHDOG
 87         tristate "Dialog Semiconductor DA9055 Watchdog"
 88         depends on MFD_DA9055
 89         select WATCHDOG_CORE
 90         help
 91           If you say yes here you get support for watchdog on the Dialog
 92           Semiconductor DA9055 PMIC.
 93 
 94           This driver can also be built as a module.  If so, the module
 95           will be called da9055_wdt.
 96 
 97 config DA9063_WATCHDOG
 98         tristate "Dialog DA9063 Watchdog"
 99         depends on MFD_DA9063
100         select WATCHDOG_CORE
101         help
102           Support for the watchdog in the DA9063 PMIC.
103 
104           This driver can be built as a module. The module name is da9063_wdt.
105 
106 config DA9062_WATCHDOG
107         tristate "Dialog DA9062/61 Watchdog"
108         depends on MFD_DA9062
109         select WATCHDOG_CORE
110         help
111           Support for the watchdog in the DA9062 and DA9061 PMICs.
112 
113           This driver can be built as a module. The module name is da9062_wdt.
114 
115 config GPIO_WATCHDOG
116         tristate "Watchdog device controlled through GPIO-line"
117         depends on OF_GPIO
118         select WATCHDOG_CORE
119         help
120           If you say yes here you get support for watchdog device
121           controlled through GPIO-line.
122 
123 config GPIO_WATCHDOG_ARCH_INITCALL
124         bool "Register the watchdog as early as possible"
125         depends on GPIO_WATCHDOG=y
126         help
127           In some situations, the default initcall level (module_init)
128           in not early enough in the boot process to avoid the watchdog
129           to be triggered.
130           If you say yes here, the initcall level would be raised to
131           arch_initcall.
132           If in doubt, say N.
133 
134 config MENF21BMC_WATCHDOG
135         tristate "MEN 14F021P00 BMC Watchdog"
136         depends on MFD_MENF21BMC
137         select WATCHDOG_CORE
138         help
139           Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
140 
141           This driver can also be built as a module. If so the module
142           will be called menf21bmc_wdt.
143 
144 config TANGOX_WATCHDOG
145         tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
146         select WATCHDOG_CORE
147         depends on ARCH_TANGO || COMPILE_TEST
148         depends on HAS_IOMEM
149         help
150           Support for the watchdog in Sigma Designs SMP86xx (tango3)
151           and SMP87xx (tango4) family chips.
152 
153           This driver can be built as a module. The module name is tangox_wdt.
154 
155 config WDAT_WDT
156         tristate "ACPI Watchdog Action Table (WDAT)"
157         depends on ACPI
158         select WATCHDOG_CORE
159         select ACPI_WATCHDOG
160         help
161           This driver adds support for systems with ACPI Watchdog Action
162           Table (WDAT) table. Servers typically have this but it can be
163           found on some desktop machines as well. This driver will take
164           over the native iTCO watchdog driver found on many Intel CPUs.
165 
166           To compile this driver as module, choose M here: the module will
167           be called wdat_wdt.
168 
169 config WM831X_WATCHDOG
170         tristate "WM831x watchdog"
171         depends on MFD_WM831X
172         select WATCHDOG_CORE
173         help
174           Support for the watchdog in the WM831x AudioPlus PMICs.  When
175           the watchdog triggers the system will be reset.
176 
177 config WM8350_WATCHDOG
178         tristate "WM8350 watchdog"
179         depends on MFD_WM8350
180         select WATCHDOG_CORE
181         help
182           Support for the watchdog in the WM8350 AudioPlus PMIC.  When
183           the watchdog triggers the system will be reset.
184 
185 config XILINX_WATCHDOG
186         tristate "Xilinx Watchdog timer"
187         depends on HAS_IOMEM
188         select WATCHDOG_CORE
189         help
190           Watchdog driver for the xps_timebase_wdt ip core.
191 
192           To compile this driver as a module, choose M here: the
193           module will be called of_xilinx_wdt.
194 
195 config ZIIRAVE_WATCHDOG
196         tristate "Zodiac RAVE Watchdog Timer"
197         depends on I2C
198         select WATCHDOG_CORE
199         help
200           Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
201           Processor.
202 
203           To compile this driver as a module, choose M here: the
204           module will be called ziirave_wdt.
205 
206 # ALPHA Architecture
207 
208 # ARM Architecture
209 
210 config ARM_SP805_WATCHDOG
211         tristate "ARM SP805 Watchdog"
212         depends on (ARM || ARM64) && ARM_AMBA
213         select WATCHDOG_CORE
214         help
215           ARM Primecell SP805 Watchdog timer. This will reboot your system when
216           the timeout is reached.
217 
218 config ARM_SBSA_WATCHDOG
219         tristate "ARM SBSA Generic Watchdog"
220         depends on ARM64
221         depends on ARM_ARCH_TIMER
222         select WATCHDOG_CORE
223         help
224           ARM SBSA Generic Watchdog has two stage timeouts:
225           the first signal (WS0) is for alerting the system by interrupt,
226           the second one (WS1) is a real hardware reset.
227           More details: ARM DEN0029B - Server Base System Architecture (SBSA)
228 
229           This driver can operate ARM SBSA Generic Watchdog as a single stage
230           or a two stages watchdog, it depends on the module parameter "action".
231 
232           Note: the maximum timeout in the two stages mode is half of that in
233           the single stage mode.
234 
235           To compile this driver as module, choose M here: The module
236           will be called sbsa_gwdt.
237 
238 config ASM9260_WATCHDOG
239         tristate "Alphascale ASM9260 watchdog"
240         depends on MACH_ASM9260
241         depends on OF
242         select WATCHDOG_CORE
243         select RESET_CONTROLLER
244         help
245           Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
246           system when the timeout is reached.
247 
248 config AT91RM9200_WATCHDOG
249         tristate "AT91RM9200 watchdog"
250         depends on SOC_AT91RM9200 && MFD_SYSCON
251         help
252           Watchdog timer embedded into AT91RM9200 chips. This will reboot your
253           system when the timeout is reached.
254 
255 config AT91SAM9X_WATCHDOG
256         tristate "AT91SAM9X / AT91CAP9 watchdog"
257         depends on ARCH_AT91
258         select WATCHDOG_CORE
259         help
260           Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
261           reboot your system when the timeout is reached.
262 
263 config SAMA5D4_WATCHDOG
264         tristate "Atmel SAMA5D4 Watchdog Timer"
265         depends on ARCH_AT91
266         select WATCHDOG_CORE
267         help
268           Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
269           Its Watchdog Timer Mode Register can be written more than once.
270           This will reboot your system when the timeout is reached.
271 
272 config CADENCE_WATCHDOG
273         tristate "Cadence Watchdog Timer"
274         depends on HAS_IOMEM
275         select WATCHDOG_CORE
276         help
277           Say Y here if you want to include support for the watchdog
278           timer in the Xilinx Zynq.
279 
280 config 21285_WATCHDOG
281         tristate "DC21285 watchdog"
282         depends on FOOTBRIDGE
283         help
284           The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
285           here if you wish to use this. Alternatively say M to compile the
286           driver as a module, which will be called wdt285.
287 
288           This driver does not work on all machines. In particular, early CATS
289           boards have hardware problems that will cause the machine to simply
290           lock up if the watchdog fires.
291 
292           "If in doubt, leave it out" - say N.
293 
294 config 977_WATCHDOG
295         tristate "NetWinder WB83C977 watchdog"
296         depends on FOOTBRIDGE && ARCH_NETWINDER
297         help
298           Say Y here to include support for the WB977 watchdog included in
299           NetWinder machines. Alternatively say M to compile the driver as
300           a module, which will be called wdt977.
301 
302           Not sure? It's safe to say N.
303 
304 config IXP4XX_WATCHDOG
305         tristate "IXP4xx Watchdog"
306         depends on ARCH_IXP4XX
307         help
308           Say Y here if to include support for the watchdog timer
309           in the Intel IXP4xx network processors. This driver can
310           be built as a module by choosing M. The module will
311           be called ixp4xx_wdt.
312 
313           Note: The internal IXP4xx watchdog does a soft CPU reset
314           which doesn't reset any peripherals. There are circumstances
315           where the watchdog will fail to reset the board correctly
316           (e.g., if the boot ROM is in an unreadable state).
317 
318           Say N if you are unsure.
319 
320 config KS8695_WATCHDOG
321         tristate "KS8695 watchdog"
322         depends on ARCH_KS8695
323         help
324           Watchdog timer embedded into KS8695 processor. This will reboot your
325           system when the timeout is reached.
326 
327 config HAVE_S3C2410_WATCHDOG
328         bool
329         help
330           This will include watchdog timer support for Samsung SoCs. If
331           you want to include watchdog support for any machine, kindly
332           select this in the respective mach-XXXX/Kconfig file.
333 
334 config S3C2410_WATCHDOG
335         tristate "S3C2410 Watchdog"
336         depends on HAVE_S3C2410_WATCHDOG
337         select WATCHDOG_CORE
338         select MFD_SYSCON if ARCH_EXYNOS5
339         help
340           Watchdog timer block in the Samsung SoCs. This will reboot
341           the system when the timer expires with the watchdog enabled.
342 
343           The driver is limited by the speed of the system's PCLK
344           signal, so with reasonably fast systems (PCLK around 50-66MHz)
345           then watchdog intervals of over approximately 20seconds are
346           unavailable.
347 
348           The driver can be built as a module by choosing M, and will
349           be called s3c2410_wdt
350 
351 config SA1100_WATCHDOG
352         tristate "SA1100/PXA2xx watchdog"
353         depends on ARCH_SA1100 || ARCH_PXA
354         help
355           Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
356           reboot your system when timeout is reached.
357 
358           NOTE: once enabled, this timer cannot be disabled.
359 
360           To compile this driver as a module, choose M here: the
361           module will be called sa1100_wdt.
362 
363 config DW_WATCHDOG
364         tristate "Synopsys DesignWare watchdog"
365         depends on HAS_IOMEM
366         select WATCHDOG_CORE
367         help
368           Say Y here if to include support for the Synopsys DesignWare
369           watchdog timer found in many chips.
370           To compile this driver as a module, choose M here: the
371           module will be called dw_wdt.
372 
373 config EP93XX_WATCHDOG
374         tristate "EP93xx Watchdog"
375         depends on ARCH_EP93XX
376         select WATCHDOG_CORE
377         help
378           Say Y here if to include support for the watchdog timer
379           embedded in the Cirrus Logic EP93xx family of devices.
380 
381           To compile this driver as a module, choose M here: the
382           module will be called ep93xx_wdt.
383 
384 config OMAP_WATCHDOG
385         tristate "OMAP Watchdog"
386         depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
387         select WATCHDOG_CORE
388         help
389           Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
390           here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
391 
392 config PNX4008_WATCHDOG
393         tristate "LPC32XX Watchdog"
394         depends on ARCH_LPC32XX
395         select WATCHDOG_CORE
396         help
397           Say Y here if to include support for the watchdog timer
398           in the LPC32XX processor.
399           This driver can be built as a module by choosing M. The module
400           will be called pnx4008_wdt.
401 
402           Say N if you are unsure.
403 
404 config IOP_WATCHDOG
405         tristate "IOP Watchdog"
406         depends on ARCH_IOP13XX
407         select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
408         help
409           Say Y here if to include support for the watchdog timer
410           in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
411           be built as a module by choosing M. The module will
412           be called iop_wdt.
413 
414           Note: The IOP13XX watchdog does an Internal Bus Reset which will
415           affect both cores and the peripherals of the IOP.  The ATU-X
416           and/or ATUe configuration registers will remain intact, but if
417           operating as an Root Complex and/or Central Resource, the PCI-X
418           and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
419 
420 config DAVINCI_WATCHDOG
421         tristate "DaVinci watchdog"
422         depends on ARCH_DAVINCI || ARCH_KEYSTONE
423         select WATCHDOG_CORE
424         help
425           Say Y here if to include support for the watchdog timer
426           in the DaVinci DM644x/DM646x or Keystone processors.
427           To compile this driver as a module, choose M here: the
428           module will be called davinci_wdt.
429 
430           NOTE: once enabled, this timer cannot be disabled.
431           Say N if you are unsure.
432 
433 config ORION_WATCHDOG
434         tristate "Orion watchdog"
435         depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
436         depends on ARM
437         select WATCHDOG_CORE
438         help
439           Say Y here if to include support for the watchdog timer
440           in the Marvell Orion5x and Kirkwood ARM SoCs.
441           To compile this driver as a module, choose M here: the
442           module will be called orion_wdt.
443 
444 config RN5T618_WATCHDOG
445         tristate "Ricoh RN5T618 watchdog"
446         depends on MFD_RN5T618
447         select WATCHDOG_CORE
448         help
449           If you say yes here you get support for watchdog on the Ricoh
450           RN5T618 PMIC.
451 
452           This driver can also be built as a module.  If so, the module
453           will be called rn5t618_wdt.
454 
455 config SUNXI_WATCHDOG
456         tristate "Allwinner SoCs watchdog support"
457         depends on ARCH_SUNXI
458         select WATCHDOG_CORE
459         help
460           Say Y here to include support for the watchdog timer
461           in Allwinner SoCs.
462           To compile this driver as a module, choose M here: the
463           module will be called sunxi_wdt.
464 
465 config COH901327_WATCHDOG
466         bool "ST-Ericsson COH 901 327 watchdog"
467         depends on ARCH_U300
468         default y if MACH_U300
469         select WATCHDOG_CORE
470         help
471           Say Y here to include Watchdog timer support for the
472           watchdog embedded into the ST-Ericsson U300 series platforms.
473           This watchdog is used to reset the system and thus cannot be
474           compiled as a module.
475 
476 config TWL4030_WATCHDOG
477         tristate "TWL4030 Watchdog"
478         depends on TWL4030_CORE
479         select WATCHDOG_CORE
480         help
481           Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
482           watchdog timer support for TWL4030 chips.
483 
484 config STMP3XXX_RTC_WATCHDOG
485         tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
486         depends on RTC_DRV_STMP
487         select WATCHDOG_CORE
488         help
489           Say Y here to include support for the watchdog timer inside
490           the RTC for the STMP37XX/378X or i.MX23/28 SoC.
491           To compile this driver as a module, choose M here: the
492           module will be called stmp3xxx_rtc_wdt.
493 
494 config NUC900_WATCHDOG
495         tristate "Nuvoton NUC900 watchdog"
496         depends on ARCH_W90X900
497         help
498           Say Y here if to include support for the watchdog timer
499           for the Nuvoton NUC900 series SoCs.
500           To compile this driver as a module, choose M here: the
501           module will be called nuc900_wdt.
502 
503 config TS4800_WATCHDOG
504         tristate "TS-4800 Watchdog"
505         depends on HAS_IOMEM && OF
506         depends on SOC_IMX51 || COMPILE_TEST
507         select WATCHDOG_CORE
508         select MFD_SYSCON
509         help
510           Technologic Systems TS-4800 has watchdog timer implemented in
511           an external FPGA. Say Y here if you want to support for the
512           watchdog timer on TS-4800 board.
513 
514 config TS72XX_WATCHDOG
515         tristate "TS-72XX SBC Watchdog"
516         depends on MACH_TS72XX
517         help
518           Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
519           watchdog timer implemented in a external CPLD chip. Say Y here
520           if you want to support for the watchdog timer on TS-72XX boards.
521 
522           To compile this driver as a module, choose M here: the
523           module will be called ts72xx_wdt.
524 
525 config MAX63XX_WATCHDOG
526         tristate "Max63xx watchdog"
527         depends on HAS_IOMEM
528         select WATCHDOG_CORE
529         help
530           Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
531 
532 config MAX77620_WATCHDOG
533         tristate "Maxim Max77620 Watchdog Timer"
534         depends on MFD_MAX77620
535         help
536          This is the driver for the Max77620 watchdog timer.
537          Say 'Y' here to enable the watchdog timer support for
538          MAX77620 chips. To compile this driver as a module,
539          choose M here: the module will be called max77620_wdt.
540 
541 config IMX2_WDT
542         tristate "IMX2+ Watchdog"
543         depends on ARCH_MXC || ARCH_LAYERSCAPE
544         select REGMAP_MMIO
545         select WATCHDOG_CORE
546         help
547           This is the driver for the hardware watchdog
548           on the Freescale IMX2 and later processors.
549           If you have one of these processors and wish to have
550           watchdog support enabled, say Y, otherwise say N.
551 
552           To compile this driver as a module, choose M here: the
553           module will be called imx2_wdt.
554 
555 config UX500_WATCHDOG
556         tristate "ST-Ericsson Ux500 watchdog"
557         depends on MFD_DB8500_PRCMU
558         select WATCHDOG_CORE
559         default y
560         help
561           Say Y here to include Watchdog timer support for the watchdog
562           existing in the prcmu of ST-Ericsson Ux500 series platforms.
563 
564           To compile this driver as a module, choose M here: the
565           module will be called ux500_wdt.
566 
567 config RETU_WATCHDOG
568         tristate "Retu watchdog"
569         depends on MFD_RETU
570         select WATCHDOG_CORE
571         help
572           Retu watchdog driver for Nokia Internet Tablets (770, N800,
573           N810). At least on N800 the watchdog cannot be disabled, so
574           this driver is essential and you should enable it.
575 
576           To compile this driver as a module, choose M here: the
577           module will be called retu_wdt.
578 
579 config MOXART_WDT
580         tristate "MOXART watchdog"
581         depends on ARCH_MOXART
582         help
583           Say Y here to include Watchdog timer support for the watchdog
584           existing on the MOXA ART SoC series platforms.
585 
586           To compile this driver as a module, choose M here: the
587           module will be called moxart_wdt.
588 
589 config SIRFSOC_WATCHDOG
590         tristate "SiRFSOC watchdog"
591         depends on ARCH_SIRF
592         select WATCHDOG_CORE
593         default y
594         help
595           Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
596           the watchdog triggers the system will be reset.
597 
598 config ST_LPC_WATCHDOG
599         tristate "STMicroelectronics LPC Watchdog"
600         depends on ARCH_STI
601         depends on OF
602         select WATCHDOG_CORE
603         help
604           Say Y here to include STMicroelectronics Low Power Controller
605           (LPC) based Watchdog timer support.
606 
607           To compile this driver as a module, choose M here: the
608           module will be called st_lpc_wdt.
609 
610 config TEGRA_WATCHDOG
611         tristate "Tegra watchdog"
612         depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
613         select WATCHDOG_CORE
614         help
615           Say Y here to include support for the watchdog timer
616           embedded in NVIDIA Tegra SoCs.
617 
618           To compile this driver as a module, choose M here: the
619           module will be called tegra_wdt.
620 
621 config QCOM_WDT
622         tristate "QCOM watchdog"
623         depends on HAS_IOMEM
624         depends on ARCH_QCOM
625         select WATCHDOG_CORE
626         help
627           Say Y here to include Watchdog timer support for the watchdog found
628           on QCOM chipsets.  Currently supported targets are the MSM8960,
629           APQ8064, and IPQ8064.
630 
631           To compile this driver as a module, choose M here: the
632           module will be called qcom_wdt.
633 
634 config MESON_GXBB_WATCHDOG
635         tristate "Amlogic Meson GXBB SoCs watchdog support"
636         depends on ARCH_MESON
637         select WATCHDOG_CORE
638         help
639           Say Y here to include support for the watchdog timer
640           in Amlogic Meson GXBB SoCs.
641           To compile this driver as a module, choose M here: the
642           module will be called meson_gxbb_wdt.
643 
644 config MESON_WATCHDOG
645         tristate "Amlogic Meson SoCs watchdog support"
646         depends on ARCH_MESON
647         select WATCHDOG_CORE
648         help
649           Say Y here to include support for the watchdog timer
650           in Amlogic Meson SoCs.
651           To compile this driver as a module, choose M here: the
652           module will be called meson_wdt.
653 
654 config MEDIATEK_WATCHDOG
655         tristate "Mediatek SoCs watchdog support"
656         depends on ARCH_MEDIATEK
657         select WATCHDOG_CORE
658         help
659           Say Y here to include support for the watchdog timer
660           in Mediatek SoCs.
661           To compile this driver as a module, choose M here: the
662           module will be called mtk_wdt.
663 
664 config DIGICOLOR_WATCHDOG
665         tristate "Conexant Digicolor SoCs watchdog support"
666         depends on ARCH_DIGICOLOR
667         select WATCHDOG_CORE
668         help
669           Say Y here to include support for the watchdog timer
670           in Conexant Digicolor SoCs.
671           To compile this driver as a module, choose M here: the
672           module will be called digicolor_wdt.
673 
674 config LPC18XX_WATCHDOG
675         tristate "LPC18xx/43xx Watchdog"
676         depends on ARCH_LPC18XX || COMPILE_TEST
677         depends on HAS_IOMEM
678         select WATCHDOG_CORE
679         help
680           Say Y here if to include support for the watchdog timer
681           in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
682           processors.
683           To compile this driver as a module, choose M here: the
684           module will be called lpc18xx_wdt.
685 
686 config ATLAS7_WATCHDOG
687         tristate "CSRatlas7 watchdog"
688         depends on ARCH_ATLAS7
689         help
690           Say Y here to include Watchdog timer support for the watchdog
691           existing on the CSRatlas7 series platforms.
692 
693           To compile this driver as a module, choose M here: the
694           module will be called atlas7_wdt.
695 
696 config RENESAS_WDT
697         tristate "Renesas WDT Watchdog"
698         depends on ARCH_RENESAS || COMPILE_TEST
699         select WATCHDOG_CORE
700         help
701           This driver adds watchdog support for the integrated watchdogs in the
702           Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
703 
704 config ASPEED_WATCHDOG
705         tristate "Aspeed 2400 watchdog support"
706         depends on ARCH_ASPEED || COMPILE_TEST
707         select WATCHDOG_CORE
708         help
709           Say Y here to include support for the watchdog timer
710           in Apseed BMC SoCs.
711 
712           This driver is required to reboot the SoC.
713 
714           To compile this driver as a module, choose M here: the
715           module will be called aspeed_wdt.
716 
717 # AVR32 Architecture
718 
719 config AT32AP700X_WDT
720         tristate "AT32AP700x watchdog"
721         depends on CPU_AT32AP700X
722         help
723           Watchdog timer embedded into AT32AP700x devices. This will reboot
724           your system when the timeout is reached.
725 
726 # BLACKFIN Architecture
727 
728 config BFIN_WDT
729         tristate "Blackfin On-Chip Watchdog Timer"
730         depends on BLACKFIN
731         ---help---
732           If you say yes here you will get support for the Blackfin On-Chip
733           Watchdog Timer. If you have one of these processors and wish to
734           have watchdog support enabled, say Y, otherwise say N.
735 
736           To compile this driver as a module, choose M here: the
737           module will be called bfin_wdt.
738 
739 # CRIS Architecture
740 
741 # FRV Architecture
742 
743 # X86 (i386 + ia64 + x86_64) Architecture
744 
745 config ACQUIRE_WDT
746         tristate "Acquire SBC Watchdog Timer"
747         depends on X86
748         ---help---
749           This is the driver for the hardware watchdog on Single Board
750           Computers produced by Acquire Inc (and others). This watchdog
751           simply watches your kernel to make sure it doesn't freeze, and if
752           it does, it reboots your computer after a certain amount of time.
753 
754           To compile this driver as a module, choose M here: the
755           module will be called acquirewdt.
756 
757           Most people will say N.
758 
759 config ADVANTECH_WDT
760         tristate "Advantech SBC Watchdog Timer"
761         depends on X86
762         help
763           If you are configuring a Linux kernel for the Advantech single-board
764           computer, say `Y' here to support its built-in watchdog timer
765           feature. More information can be found at
766           <http://www.advantech.com.tw/products/>
767 
768 config ALIM1535_WDT
769         tristate "ALi M1535 PMU Watchdog Timer"
770         depends on X86 && PCI
771         ---help---
772           This is the driver for the hardware watchdog on the ALi M1535 PMU.
773 
774           To compile this driver as a module, choose M here: the
775           module will be called alim1535_wdt.
776 
777           Most people will say N.
778 
779 config ALIM7101_WDT
780         tristate "ALi M7101 PMU Computer Watchdog"
781         depends on PCI
782         help
783           This is the driver for the hardware watchdog on the ALi M7101 PMU
784           as used in the x86 Cobalt servers and also found in some
785           SPARC Netra servers too.
786 
787           To compile this driver as a module, choose M here: the
788           module will be called alim7101_wdt.
789 
790           Most people will say N.
791 
792 config EBC_C384_WDT
793         tristate "WinSystems EBC-C384 Watchdog Timer"
794         depends on X86 && ISA_BUS_API
795         select WATCHDOG_CORE
796         help
797           Enables watchdog timer support for the watchdog timer on the
798           WinSystems EBC-C384 motherboard. The timeout may be configured via
799           the timeout module parameter.
800 
801 config F71808E_WDT
802         tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
803         depends on X86
804         help
805           This is the driver for the hardware watchdog on the Fintek
806           F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
807 
808           You can compile this driver directly into the kernel, or use
809           it as a module.  The module will be called f71808e_wdt.
810 
811 config SP5100_TCO
812         tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
813         depends on X86 && PCI
814         ---help---
815           Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
816           (Total Cost of Ownership) timer is a watchdog timer that will reboot
817           the machine after its expiration. The expiration time can be
818           configured with the "heartbeat" parameter.
819 
820           To compile this driver as a module, choose M here: the
821           module will be called sp5100_tco.
822 
823 config GEODE_WDT
824         tristate "AMD Geode CS5535/CS5536 Watchdog"
825         depends on CS5535_MFGPT
826         help
827           This driver enables a watchdog capability built into the
828           CS5535/CS5536 companion chips for the AMD Geode GX and LX
829           processors.  This watchdog watches your kernel to make sure
830           it doesn't freeze, and if it does, it reboots your computer after
831           a certain amount of time.
832 
833           You can compile this driver directly into the kernel, or use
834           it as a module.  The module will be called geodewdt.
835 
836 config SC520_WDT
837         tristate "AMD Elan SC520 processor Watchdog"
838         depends on MELAN
839         help
840           This is the driver for the hardware watchdog built in to the
841           AMD "Elan" SC520 microcomputer commonly used in embedded systems.
842           This watchdog simply watches your kernel to make sure it doesn't
843           freeze, and if it does, it reboots your computer after a certain
844           amount of time.
845 
846           You can compile this driver directly into the kernel, or use
847           it as a module.  The module will be called sc520_wdt.
848 
849 config SBC_FITPC2_WATCHDOG
850         tristate "Compulab SBC-FITPC2 watchdog"
851         depends on X86
852         ---help---
853           This is the driver for the built-in watchdog timer on the fit-PC2,
854           fit-PC2i, CM-iAM single-board computers made by Compulab.
855 
856           It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
857           When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
858 
859           Entering BIOS setup temporary disables watchdog operation regardless to current state,
860           so system will not be restarted while user in BIOS setup.
861 
862           Once watchdog was enabled the system will be restarted every
863           "Watchdog Timer Value" period, so to prevent it user can restart or
864           disable the watchdog.
865 
866           To compile this driver as a module, choose M here: the
867           module will be called sbc_fitpc2_wdt.
868 
869           Most people will say N.
870 
871 config EUROTECH_WDT
872         tristate "Eurotech CPU-1220/1410 Watchdog Timer"
873         depends on X86
874         help
875           Enable support for the watchdog timer on the Eurotech CPU-1220 and
876           CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
877           information are at <http://www.eurotech.it/>.
878 
879 config IB700_WDT
880         tristate "IB700 SBC Watchdog Timer"
881         depends on X86
882         ---help---
883           This is the driver for the hardware watchdog on the IB700 Single
884           Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
885           simply watches your kernel to make sure it doesn't freeze, and if
886           it does, it reboots your computer after a certain amount of time.
887 
888           This driver is like the WDT501 driver but for slightly different hardware.
889 
890           To compile this driver as a module, choose M here: the
891           module will be called ib700wdt.
892 
893           Most people will say N.
894 
895 config IBMASR
896         tristate "IBM Automatic Server Restart"
897         depends on X86
898         help
899           This is the driver for the IBM Automatic Server Restart watchdog
900           timer built-in into some eServer xSeries machines.
901 
902           To compile this driver as a module, choose M here: the
903           module will be called ibmasr.
904 
905 config WAFER_WDT
906         tristate "ICP Single Board Computer Watchdog Timer"
907         depends on X86
908         help
909           This is a driver for the hardware watchdog on the ICP Single
910           Board Computer. This driver is working on (at least) the following
911           IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
912 
913           To compile this driver as a module, choose M here: the
914           module will be called wafer5823wdt.
915 
916 config I6300ESB_WDT
917         tristate "Intel 6300ESB Timer/Watchdog"
918         depends on PCI
919         ---help---
920           Hardware driver for the watchdog timer built into the Intel
921           6300ESB controller hub.
922 
923           To compile this driver as a module, choose M here: the
924           module will be called i6300esb.
925 
926 config IE6XX_WDT
927         tristate "Intel Atom E6xx Watchdog"
928         depends on X86 && PCI
929         select WATCHDOG_CORE
930         select MFD_CORE
931         select LPC_SCH
932         ---help---
933           Hardware driver for the watchdog timer built into the Intel
934           Atom E6XX (TunnelCreek) processor.
935 
936           To compile this driver as a module, choose M here: the
937           module will be called ie6xx_wdt.
938 
939 config INTEL_SCU_WATCHDOG
940         bool "Intel SCU Watchdog for Mobile Platforms"
941         depends on X86_INTEL_MID
942         ---help---
943           Hardware driver for the watchdog time built into the Intel SCU
944           for Intel Mobile Platforms.
945 
946           To compile this driver as a module, choose M here.
947 
948 config INTEL_MID_WATCHDOG
949         tristate "Intel MID Watchdog Timer"
950         depends on X86_INTEL_MID
951         select WATCHDOG_CORE
952         ---help---
953           Watchdog timer driver built into the Intel SCU for Intel MID
954           Platforms.
955 
956           This driver currently supports only the watchdog evolution
957           implementation in SCU, available for Merrifield generation.
958 
959           To compile this driver as a module, choose M here.
960 
961 config ITCO_WDT
962         tristate "Intel TCO Timer/Watchdog"
963         depends on (X86 || IA64) && PCI
964         select WATCHDOG_CORE
965         depends on I2C || I2C=n
966         select LPC_ICH if !EXPERT
967         select I2C_I801 if !EXPERT && I2C
968         ---help---
969           Hardware driver for the intel TCO timer based watchdog devices.
970           These drivers are included in the Intel 82801 I/O Controller
971           Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
972           controller hub.
973 
974           The TCO (Total Cost of Ownership) timer is a watchdog timer
975           that will reboot the machine after its second expiration. The
976           expiration time can be configured with the "heartbeat" parameter.
977 
978           On some motherboards the driver may fail to reset the chipset's
979           NO_REBOOT flag which prevents the watchdog from rebooting the
980           machine. If this is the case you will get a kernel message like
981           "failed to reset NO_REBOOT flag, reboot disabled by hardware".
982 
983           To compile this driver as a module, choose M here: the
984           module will be called iTCO_wdt.
985 
986 config ITCO_VENDOR_SUPPORT
987         bool "Intel TCO Timer/Watchdog Specific Vendor Support"
988         depends on ITCO_WDT
989         ---help---
990           Add vendor specific support to the intel TCO timer based watchdog
991           devices. At this moment we only have additional support for some
992           SuperMicro Inc. motherboards.
993 
994 config IT8712F_WDT
995         tristate "IT8712F (Smart Guardian) Watchdog Timer"
996         depends on X86
997         ---help---
998           This is the driver for the built-in watchdog timer on the IT8712F
999           Super I/0 chipset used on many motherboards.
1000 
1001           If the driver does not work, then make sure that the game port in
1002           the BIOS is enabled.
1003 
1004           To compile this driver as a module, choose M here: the
1005           module will be called it8712f_wdt.
1006 
1007 config IT87_WDT
1008         tristate "IT87 Watchdog Timer"
1009         depends on X86
1010         ---help---
1011           This is the driver for the hardware watchdog on the ITE IT8620,
1012           IT8702, IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
1013           Super I/O chips.
1014 
1015           If the driver does not work, then make sure that the game port in
1016           the BIOS is enabled.
1017 
1018           This watchdog simply watches your kernel to make sure it doesn't
1019           freeze, and if it does, it reboots your computer after a certain
1020           amount of time.
1021 
1022           To compile this driver as a module, choose M here: the module will
1023           be called it87_wdt.
1024 
1025 config HP_WATCHDOG
1026         tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1027         depends on X86 && PCI
1028         help
1029           A software monitoring watchdog and NMI sourcing driver. This driver
1030           will detect lockups and provide a stack trace. This is a driver that
1031           will only load on an HP ProLiant system with a minimum of iLO2 support.
1032           To compile this driver as a module, choose M here: the module will be
1033           called hpwdt.
1034 
1035 config KEMPLD_WDT
1036         tristate "Kontron COM Watchdog Timer"
1037         depends on MFD_KEMPLD
1038         select WATCHDOG_CORE
1039         help
1040           Support for the PLD watchdog on some Kontron ETX and COMexpress
1041           (ETXexpress) modules
1042 
1043           This driver can also be built as a module. If so, the module will be
1044           called kempld_wdt.
1045 
1046 config HPWDT_NMI_DECODING
1047         bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1048         depends on HP_WATCHDOG
1049         default y
1050         help
1051           When an NMI occurs this feature will make the necessary BIOS calls to
1052           log the cause of the NMI.
1053 
1054 config SC1200_WDT
1055         tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1056         depends on X86
1057         help
1058           This is a driver for National Semiconductor PC87307/PC97307 hardware
1059           watchdog cards as found on the SC1200. This watchdog is mainly used
1060           for power management purposes and can be used to power down the device
1061           during inactivity periods (includes interrupt activity monitoring).
1062 
1063           To compile this driver as a module, choose M here: the
1064           module will be called sc1200wdt.
1065 
1066           Most people will say N.
1067 
1068 config SCx200_WDT
1069         tristate "National Semiconductor SCx200 Watchdog"
1070         depends on SCx200 && PCI
1071         help
1072           Enable the built-in watchdog timer support on the National
1073           Semiconductor SCx200 processors.
1074 
1075           If compiled as a module, it will be called scx200_wdt.
1076 
1077 config PC87413_WDT
1078         tristate "NS PC87413 watchdog"
1079         depends on X86
1080         ---help---
1081           This is the driver for the hardware watchdog on the PC87413 chipset
1082           This watchdog simply watches your kernel to make sure it doesn't
1083           freeze, and if it does, it reboots your computer after a certain
1084           amount of time.
1085 
1086           To compile this driver as a module, choose M here: the
1087           module will be called pc87413_wdt.
1088 
1089           Most people will say N.
1090 
1091 config NV_TCO
1092         tristate "nVidia TCO Timer/Watchdog"
1093         depends on X86 && PCI
1094         ---help---
1095           Hardware driver for the TCO timer built into the nVidia Hub family
1096           (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1097           watchdog timer that will reboot the machine after its second
1098           expiration. The expiration time can be configured with the
1099           "heartbeat" parameter.
1100 
1101           On some motherboards the driver may fail to reset the chipset's
1102           NO_REBOOT flag which prevents the watchdog from rebooting the
1103           machine. If this is the case you will get a kernel message like
1104           "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1105 
1106           To compile this driver as a module, choose M here: the
1107           module will be called nv_tco.
1108 
1109 config RDC321X_WDT
1110         tristate "RDC R-321x SoC watchdog"
1111         depends on X86_RDC321X
1112         help
1113           This is the driver for the built in hardware watchdog
1114           in the RDC R-321x SoC.
1115 
1116           To compile this driver as a module, choose M here: the
1117           module will be called rdc321x_wdt.
1118 
1119 config 60XX_WDT
1120         tristate "SBC-60XX Watchdog Timer"
1121         depends on X86
1122         help
1123           This driver can be used with the watchdog timer found on some
1124           single board computers, namely the 6010 PII based computer.
1125           It may well work with other cards.  It reads port 0x443 to enable
1126           and re-set the watchdog timer, and reads port 0x45 to disable
1127           the watchdog.  If you have a card that behave in similar ways,
1128           you can probably make this driver work with your card as well.
1129 
1130           You can compile this driver directly into the kernel, or use
1131           it as a module.  The module will be called sbc60xxwdt.
1132 
1133 config SBC8360_WDT
1134         tristate "SBC8360 Watchdog Timer"
1135         depends on X86_32
1136         ---help---
1137 
1138           This is the driver for the hardware watchdog on the SBC8360 Single
1139           Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1140 
1141           To compile this driver as a module, choose M here: the
1142           module will be called sbc8360.
1143 
1144           Most people will say N.
1145 
1146 config SBC7240_WDT
1147         tristate "SBC Nano 7240 Watchdog Timer"
1148         depends on X86_32 && !UML
1149         ---help---
1150           This is the driver for the hardware watchdog found on the IEI
1151           single board computers EPIC Nano 7240 (and likely others). This
1152           watchdog simply watches your kernel to make sure it doesn't freeze,
1153           and if it does, it reboots your computer after a certain amount of
1154           time.
1155 
1156           To compile this driver as a module, choose M here: the
1157           module will be called sbc7240_wdt.
1158 
1159 config CPU5_WDT
1160         tristate "SMA CPU5 Watchdog"
1161         depends on X86
1162         ---help---
1163           TBD.
1164           To compile this driver as a module, choose M here: the
1165           module will be called cpu5wdt.
1166 
1167 config SMSC_SCH311X_WDT
1168         tristate "SMSC SCH311X Watchdog Timer"
1169         depends on X86
1170         ---help---
1171           This is the driver for the hardware watchdog timer on the
1172           SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1173           (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1174           serial ports).
1175 
1176           To compile this driver as a module, choose M here: the
1177           module will be called sch311x_wdt.
1178 
1179 config SMSC37B787_WDT
1180         tristate "Winbond SMsC37B787 Watchdog Timer"
1181         depends on X86
1182         ---help---
1183           This is the driver for the hardware watchdog component on the
1184           Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1185           from Vision Systems and maybe others.
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           Usually a userspace daemon will notify the kernel WDT driver that
1192           userspace is still alive, at regular intervals.
1193 
1194           To compile this driver as a module, choose M here: the
1195           module will be called smsc37b787_wdt.
1196 
1197           Most people will say N.
1198 
1199 config VIA_WDT
1200         tristate "VIA Watchdog Timer"
1201         depends on X86 && PCI
1202         select WATCHDOG_CORE
1203         ---help---
1204         This is the driver for the hardware watchdog timer on VIA
1205         southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1206 
1207         To compile this driver as a module, choose M here; the module
1208         will be called via_wdt.
1209 
1210         Most people will say N.
1211 
1212 config W83627HF_WDT
1213         tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1214         depends on X86
1215         select WATCHDOG_CORE
1216         ---help---
1217           This is the driver for the hardware watchdog on the following
1218           Super I/O chips.
1219                 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1220                 W83637HF
1221                 W83667HG/HG-B
1222                 W83687THF
1223                 W83697HF
1224                 W83697UG
1225                 NCT6775
1226                 NCT6776
1227                 NCT6779
1228                 NCT6791
1229                 NCT6792
1230                 NCT6102D/04D/06D
1231 
1232           This watchdog simply watches your kernel to make sure it doesn't
1233           freeze, and if it does, it reboots your computer after a certain
1234           amount of time.
1235 
1236           To compile this driver as a module, choose M here: the
1237           module will be called w83627hf_wdt.
1238 
1239           Most people will say N.
1240 
1241 config W83877F_WDT
1242         tristate "W83877F (EMACS) Watchdog Timer"
1243         depends on X86
1244         ---help---
1245           This is the driver for the hardware watchdog on the W83877F chipset
1246           as used in EMACS PC-104 motherboards (and likely others).  This
1247           watchdog simply watches your kernel to make sure it doesn't freeze,
1248           and if it does, it reboots your computer after a certain amount of
1249           time.
1250 
1251           To compile this driver as a module, choose M here: the
1252           module will be called w83877f_wdt.
1253 
1254           Most people will say N.
1255 
1256 config W83977F_WDT
1257         tristate "W83977F (PCM-5335) Watchdog Timer"
1258         depends on X86
1259         ---help---
1260           This is the driver for the hardware watchdog on the W83977F I/O chip
1261           as used in AAEON's PCM-5335 SBC (and likely others).  This
1262           watchdog simply watches your kernel to make sure it doesn't freeze,
1263           and if it does, it reboots your computer after a certain amount of
1264           time.
1265 
1266           To compile this driver as a module, choose M here: the
1267           module will be called w83977f_wdt.
1268 
1269 config MACHZ_WDT
1270         tristate "ZF MachZ Watchdog"
1271         depends on X86
1272         ---help---
1273           If you are using a ZF Micro MachZ processor, say Y here, otherwise
1274           N.  This is the driver for the watchdog timer built-in on that
1275           processor using ZF-Logic interface.  This watchdog simply watches
1276           your kernel to make sure it doesn't freeze, and if it does, it
1277           reboots your computer after a certain amount of time.
1278 
1279           To compile this driver as a module, choose M here: the
1280           module will be called machzwd.
1281 
1282 config SBC_EPX_C3_WATCHDOG
1283         tristate "Winsystems SBC EPX-C3 watchdog"
1284         depends on X86
1285         ---help---
1286           This is the driver for the built-in watchdog timer on the EPX-C3
1287           Single-board computer made by Winsystems, Inc.
1288 
1289           *Note*: This hardware watchdog is not probeable and thus there
1290           is no way to know if writing to its IO address will corrupt
1291           your system or have any real effect.  The only way to be sure
1292           that this driver does what you want is to make sure you
1293           are running it on an EPX-C3 from Winsystems with the watchdog
1294           timer at IO address 0x1ee and 0x1ef.  It will write to both those
1295           IO ports.  Basically, the assumption is made that if you compile
1296           this driver into your kernel and/or load it as a module, that you
1297           know what you are doing and that you are in fact running on an
1298           EPX-C3 board!
1299 
1300           To compile this driver as a module, choose M here: the
1301           module will be called sbc_epx_c3.
1302 
1303 config INTEL_MEI_WDT
1304         tristate "Intel MEI iAMT Watchdog"
1305         depends on INTEL_MEI && X86
1306         select WATCHDOG_CORE
1307         ---help---
1308           A device driver for the Intel MEI iAMT watchdog.
1309 
1310           The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1311           Whenever the OS hangs or crashes, iAMT will send an event
1312           to any subscriber to this event. The watchdog doesn't reset the
1313           the platform.
1314 
1315           To compile this driver as a module, choose M here:
1316           the module will be called mei_wdt.
1317 
1318 config NI903X_WDT
1319         tristate "NI 903x/913x Watchdog"
1320         depends on X86 && ACPI
1321         select WATCHDOG_CORE
1322         ---help---
1323           This is the driver for the watchdog timer on the National Instruments
1324           903x/913x real-time controllers.
1325 
1326           To compile this driver as a module, choose M here: the module will be
1327           called ni903x_wdt.
1328 
1329 # M32R Architecture
1330 
1331 # M68K Architecture
1332 
1333 config M54xx_WATCHDOG
1334         tristate "MCF54xx watchdog support"
1335         depends on M548x
1336         help
1337           To compile this driver as a module, choose M here: the
1338           module will be called m54xx_wdt.
1339 
1340 # MicroBlaze Architecture
1341 
1342 # MIPS Architecture
1343 
1344 config ATH79_WDT
1345         tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1346         depends on ATH79
1347         help
1348           Hardware driver for the built-in watchdog timer on the Atheros
1349           AR71XX/AR724X/AR913X SoCs.
1350 
1351 config BCM47XX_WDT
1352         tristate "Broadcom BCM47xx Watchdog Timer"
1353         depends on BCM47XX || ARCH_BCM_5301X
1354         select WATCHDOG_CORE
1355         help
1356           Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1357 
1358 config RC32434_WDT
1359         tristate "IDT RC32434 SoC Watchdog Timer"
1360         depends on MIKROTIK_RB532
1361         help
1362           Hardware driver for the IDT RC32434 SoC built-in
1363           watchdog timer.
1364 
1365           To compile this driver as a module, choose M here: the
1366           module will be called rc32434_wdt.
1367 
1368 config INDYDOG
1369         tristate "Indy/I2 Hardware Watchdog"
1370         depends on SGI_HAS_INDYDOG
1371         help
1372           Hardware driver for the Indy's/I2's watchdog. This is a
1373           watchdog timer that will reboot the machine after a 60 second
1374           timer expired and no process has written to /dev/watchdog during
1375           that time.
1376 
1377 config JZ4740_WDT
1378         tristate "Ingenic jz4740 SoC hardware watchdog"
1379         depends on MACH_JZ4740
1380         select WATCHDOG_CORE
1381         help
1382           Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1383 
1384 config WDT_MTX1
1385         tristate "MTX-1 Hardware Watchdog"
1386         depends on MIPS_MTX1
1387         help
1388           Hardware driver for the MTX-1 boards. This is a watchdog timer that
1389           will reboot the machine after a 100 seconds timer expired.
1390 
1391 config PNX833X_WDT
1392         tristate "PNX833x Hardware Watchdog"
1393         depends on SOC_PNX8335
1394         help
1395           Hardware driver for the PNX833x's watchdog. This is a
1396           watchdog timer that will reboot the machine after a programmable
1397           timer has expired and no process has written to /dev/watchdog during
1398           that time.
1399 
1400 config SIBYTE_WDOG
1401         tristate "Sibyte SoC hardware watchdog"
1402         depends on CPU_SB1
1403         help
1404           Watchdog driver for the built in watchdog hardware in Sibyte
1405           SoC processors.  There are apparently two watchdog timers
1406           on such processors; this driver supports only the first one,
1407           because currently Linux only supports exporting one watchdog
1408           to userspace.
1409 
1410           To compile this driver as a loadable module, choose M here.
1411           The module will be called sb_wdog.
1412 
1413 config AR7_WDT
1414         tristate "TI AR7 Watchdog Timer"
1415         depends on AR7
1416         help
1417           Hardware driver for the TI AR7 Watchdog Timer.
1418 
1419 config TXX9_WDT
1420         tristate "Toshiba TXx9 Watchdog Timer"
1421         depends on CPU_TX39XX || CPU_TX49XX
1422         select WATCHDOG_CORE
1423         help
1424           Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1425 
1426 config OCTEON_WDT
1427         tristate "Cavium OCTEON SOC family Watchdog Timer"
1428         depends on CAVIUM_OCTEON_SOC
1429         default y
1430         select WATCHDOG_CORE
1431         select EXPORT_UASM if OCTEON_WDT = m
1432         help
1433           Hardware driver for OCTEON's on chip watchdog timer.
1434           Enables the watchdog for all cores running Linux. It
1435           installs a NMI handler and pokes the watchdog based on an
1436           interrupt.  On first expiration of the watchdog, the
1437           interrupt handler pokes it.  The second expiration causes an
1438           NMI that prints a message. The third expiration causes a
1439           global soft reset.
1440 
1441           When userspace has /dev/watchdog open, no poking is done
1442           from the first interrupt, it is then only poked when the
1443           device is written.
1444 
1445 config BCM63XX_WDT
1446         tristate "Broadcom BCM63xx hardware watchdog"
1447         depends on BCM63XX
1448         help
1449           Watchdog driver for the built in watchdog hardware in Broadcom
1450           BCM63xx SoC.
1451 
1452           To compile this driver as a loadable module, choose M here.
1453           The module will be called bcm63xx_wdt.
1454 
1455 config BCM2835_WDT
1456         tristate "Broadcom BCM2835 hardware watchdog"
1457         depends on ARCH_BCM2835
1458         select WATCHDOG_CORE
1459         help
1460           Watchdog driver for the built in watchdog hardware in Broadcom
1461           BCM2835 SoC.
1462 
1463           To compile this driver as a loadable module, choose M here.
1464           The module will be called bcm2835_wdt.
1465 
1466 config BCM_KONA_WDT
1467         tristate "BCM Kona Watchdog"
1468         depends on ARCH_BCM_MOBILE
1469         select WATCHDOG_CORE
1470         help
1471           Support for the watchdog timer on the following Broadcom BCM281xx
1472           family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1473           BCM28155 variants.
1474 
1475           Say 'Y' or 'M' here to enable the driver. The module will be called
1476           bcm_kona_wdt.
1477 
1478 config BCM_KONA_WDT_DEBUG
1479         bool "DEBUGFS support for BCM Kona Watchdog"
1480         depends on BCM_KONA_WDT
1481         help
1482           If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1483           access to the driver's internal data structures as well as watchdog
1484           timer hardware registres.
1485 
1486           If in doubt, say 'N'.
1487 
1488 config BCM7038_WDT
1489         tristate "BCM7038 Watchdog"
1490         select WATCHDOG_CORE
1491         depends on HAS_IOMEM
1492         depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1493         help
1494          Watchdog driver for the built-in hardware in Broadcom 7038 and
1495          later SoCs used in set-top boxes.  BCM7038 was made public
1496          during the 2004 CES, and since then, many Broadcom chips use this
1497          watchdog block, including some cable modem chips.
1498 
1499 config IMGPDC_WDT
1500         tristate "Imagination Technologies PDC Watchdog Timer"
1501         depends on HAS_IOMEM
1502         depends on METAG || MIPS || COMPILE_TEST
1503         select WATCHDOG_CORE
1504         help
1505           Driver for Imagination Technologies PowerDown Controller
1506           Watchdog Timer.
1507 
1508           To compile this driver as a loadable module, choose M here.
1509           The module will be called imgpdc_wdt.
1510 
1511 config LANTIQ_WDT
1512         tristate "Lantiq SoC watchdog"
1513         depends on LANTIQ
1514         help
1515           Hardware driver for the Lantiq SoC Watchdog Timer.
1516 
1517 config LOONGSON1_WDT
1518         tristate "Loongson1 SoC hardware watchdog"
1519         depends on MACH_LOONGSON32
1520         select WATCHDOG_CORE
1521         help
1522           Hardware driver for the Loongson1 SoC Watchdog Timer.
1523 
1524 config RALINK_WDT
1525         tristate "Ralink SoC watchdog"
1526         select WATCHDOG_CORE
1527         depends on RALINK
1528         help
1529           Hardware driver for the Ralink SoC Watchdog Timer.
1530 
1531 config MT7621_WDT
1532         tristate "Mediatek SoC watchdog"
1533         select WATCHDOG_CORE
1534         depends on SOC_MT7620 || SOC_MT7621
1535         help
1536           Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1537 
1538 config PIC32_WDT
1539         tristate "Microchip PIC32 hardware watchdog"
1540         select WATCHDOG_CORE
1541         depends on MACH_PIC32
1542         help
1543           Watchdog driver for the built in watchdog hardware in a PIC32.
1544 
1545           Configuration bits must be set appropriately for the watchdog to be
1546           controlled by this driver.
1547 
1548           To compile this driver as a loadable module, choose M here.
1549           The module will be called pic32-wdt.
1550 
1551 config PIC32_DMT
1552         tristate "Microchip PIC32 Deadman Timer"
1553         select WATCHDOG_CORE
1554         depends on MACH_PIC32
1555         help
1556           Watchdog driver for PIC32 instruction fetch counting timer. This specific
1557           timer is typically be used in misson critical and safety critical
1558           applications, where any single failure of the software functionality
1559           and sequencing must be detected.
1560 
1561           To compile this driver as a loadable module, choose M here.
1562           The module will be called pic32-dmt.
1563 
1564 # PARISC Architecture
1565 
1566 # POWERPC Architecture
1567 
1568 config GEF_WDT
1569         tristate "GE Watchdog Timer"
1570         depends on GE_FPGA
1571         ---help---
1572           Watchdog timer found in a number of GE single board computers.
1573 
1574 config MPC5200_WDT
1575         bool "MPC52xx Watchdog Timer"
1576         depends on PPC_MPC52xx
1577         help
1578           Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1579 
1580 config 8xxx_WDT
1581         tristate "MPC8xxx Platform Watchdog Timer"
1582         depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1583         select WATCHDOG_CORE
1584         help
1585           This driver is for a SoC level watchdog that exists on some
1586           Freescale PowerPC processors. So far this driver supports:
1587           - MPC8xx watchdogs
1588           - MPC83xx watchdogs
1589           - MPC86xx watchdogs
1590 
1591           For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1592 
1593 config MV64X60_WDT
1594         tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1595         depends on MV64X60
1596 
1597 config PIKA_WDT
1598         tristate "PIKA FPGA Watchdog"
1599         depends on WARP
1600         default y
1601         help
1602           This enables the watchdog in the PIKA FPGA. Currently used on
1603           the Warp platform.
1604 
1605 config BOOKE_WDT
1606         tristate "PowerPC Book-E Watchdog Timer"
1607         depends on BOOKE || 4xx
1608         select WATCHDOG_CORE
1609         ---help---
1610           Watchdog driver for PowerPC Book-E chips, such as the Freescale
1611           MPC85xx SOCs and the IBM PowerPC 440.
1612 
1613           Please see Documentation/watchdog/watchdog-api.txt for
1614           more information.
1615 
1616 config BOOKE_WDT_DEFAULT_TIMEOUT
1617         int "PowerPC Book-E Watchdog Timer Default Timeout"
1618         depends on BOOKE_WDT
1619         default 38 if PPC_FSL_BOOK3E
1620         range 0 63 if PPC_FSL_BOOK3E
1621         default 3 if !PPC_FSL_BOOK3E
1622         range 0 3 if !PPC_FSL_BOOK3E
1623         help
1624           Select the default watchdog timer period to be used by the PowerPC
1625           Book-E watchdog driver.  A watchdog "event" occurs when the bit
1626           position represented by this number transitions from zero to one.
1627 
1628           For Freescale Book-E processors, this is a number between 0 and 63.
1629           For other Book-E processors, this is a number between 0 and 3.
1630 
1631           The value can be overridden by the wdt_period command-line parameter.
1632 
1633 config MEN_A21_WDT
1634         tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1635         select WATCHDOG_CORE
1636         depends on GPIOLIB || COMPILE_TEST
1637         help
1638           Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1639 
1640           The driver can also be built as a module. If so, the module will be
1641           called mena21_wdt.
1642 
1643           If unsure select N here.
1644 
1645 # PPC64 Architecture
1646 
1647 config WATCHDOG_RTAS
1648         tristate "RTAS watchdog"
1649         depends on PPC_RTAS
1650         help
1651           This driver adds watchdog support for the RTAS watchdog.
1652 
1653           To compile this driver as a module, choose M here. The module
1654           will be called wdrtas.
1655 
1656 # S390 Architecture
1657 
1658 config DIAG288_WATCHDOG
1659         tristate "System z diag288 Watchdog"
1660         depends on S390
1661         select WATCHDOG_CORE
1662         help
1663           IBM s/390 and zSeries machines running under z/VM 5.1 or later
1664           provide a virtual watchdog timer to their guest that cause a
1665           user define Control Program command to be executed after a
1666           timeout.
1667           LPAR provides a very similar interface. This driver handles
1668           both.
1669 
1670           To compile this driver as a module, choose M here. The module
1671           will be called diag288_wdt.
1672 
1673 # SUPERH (sh + sh64) Architecture
1674 
1675 config SH_WDT
1676         tristate "SuperH Watchdog"
1677         depends on SUPERH && (CPU_SH3 || CPU_SH4)
1678         select WATCHDOG_CORE
1679         help
1680           This driver adds watchdog support for the integrated watchdog in the
1681           SuperH processors. If you have one of these processors and wish
1682           to have watchdog support enabled, say Y, otherwise say N.
1683 
1684           As a side note, saying Y here will automatically boost HZ to 1000
1685           so that the timer has a chance to clear the overflow counter. On
1686           slower systems (such as the SH-2 and SH-3) this will likely yield
1687           some performance issues. As such, the WDT should be avoided here
1688           unless it is absolutely necessary.
1689 
1690           To compile this driver as a module, choose M here: the
1691           module will be called shwdt.
1692 
1693 # SPARC Architecture
1694 
1695 # SPARC64 Architecture
1696 
1697 config WATCHDOG_CP1XXX
1698         tristate "CP1XXX Hardware Watchdog support"
1699         depends on SPARC64 && PCI
1700         ---help---
1701           This is the driver for the hardware watchdog timers present on
1702           Sun Microsystems CompactPCI models CP1400 and CP1500.
1703 
1704           To compile this driver as a module, choose M here: the
1705           module will be called cpwatchdog.
1706 
1707           If you do not have a CompactPCI model CP1400 or CP1500, or
1708           another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1709           you should say N to this option.
1710 
1711 config WATCHDOG_RIO
1712         tristate "RIO Hardware Watchdog support"
1713         depends on SPARC64 && PCI
1714         help
1715           Say Y here to support the hardware watchdog capability on Sun RIO
1716           machines.  The watchdog timeout period is normally one minute but
1717           can be changed with a boot-time parameter.
1718 
1719 config WATCHDOG_SUN4V
1720         tristate "Sun4v Watchdog support"
1721         select WATCHDOG_CORE
1722         depends on SPARC64
1723         help
1724           Say Y here to support the hypervisor watchdog capability embedded
1725           in the SPARC sun4v architecture.
1726 
1727           To compile this driver as a module, choose M here. The module will
1728           be called sun4v_wdt.
1729 
1730 # XTENSA Architecture
1731 
1732 # Xen Architecture
1733 
1734 config XEN_WDT
1735         tristate "Xen Watchdog support"
1736         depends on XEN
1737         help
1738           Say Y here to support the hypervisor watchdog capability provided
1739           by Xen 4.0 and newer.  The watchdog timeout period is normally one
1740           minute but can be changed with a boot-time parameter.
1741 
1742 config UML_WATCHDOG
1743         tristate "UML watchdog"
1744         depends on UML
1745 
1746 #
1747 # ISA-based Watchdog Cards
1748 #
1749 
1750 comment "ISA-based Watchdog Cards"
1751         depends on ISA
1752 
1753 config PCWATCHDOG
1754         tristate "Berkshire Products ISA-PC Watchdog"
1755         depends on ISA
1756         ---help---
1757           This is the driver for the Berkshire Products ISA-PC Watchdog card.
1758           This card simply watches your kernel to make sure it doesn't freeze,
1759           and if it does, it reboots your computer after a certain amount of
1760           time. This driver is like the WDT501 driver but for different
1761           hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1762           watchdog cards can be ordered from <http://www.berkprod.com/>.
1763 
1764           To compile this driver as a module, choose M here: the
1765           module will be called pcwd.
1766 
1767           Most people will say N.
1768 
1769 config MIXCOMWD
1770         tristate "Mixcom Watchdog"
1771         depends on ISA
1772         ---help---
1773           This is a driver for the Mixcom hardware watchdog cards.  This
1774           watchdog simply watches your kernel to make sure it doesn't freeze,
1775           and if it does, it reboots your computer after a certain amount of
1776           time.
1777 
1778           To compile this driver as a module, choose M here: the
1779           module will be called mixcomwd.
1780 
1781           Most people will say N.
1782 
1783 config WDT
1784         tristate "WDT Watchdog timer"
1785         depends on ISA
1786         ---help---
1787           If you have a WDT500P or WDT501P watchdog board, say Y here,
1788           otherwise N. It is not possible to probe for this board, which means
1789           that you have to inform the kernel about the IO port and IRQ that
1790           is needed (you can do this via the io and irq parameters)
1791 
1792           To compile this driver as a module, choose M here: the
1793           module will be called wdt.
1794 
1795 #
1796 # PCI-based Watchdog Cards
1797 #
1798 
1799 comment "PCI-based Watchdog Cards"
1800         depends on PCI
1801 
1802 config PCIPCWATCHDOG
1803         tristate "Berkshire Products PCI-PC Watchdog"
1804         depends on PCI
1805         ---help---
1806           This is the driver for the Berkshire Products PCI-PC Watchdog card.
1807           This card simply watches your kernel to make sure it doesn't freeze,
1808           and if it does, it reboots your computer after a certain amount of
1809           time. The card can also monitor the internal temperature of the PC.
1810           More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1811 
1812           To compile this driver as a module, choose M here: the
1813           module will be called pcwd_pci.
1814 
1815           Most people will say N.
1816 
1817 config WDTPCI
1818         tristate "PCI-WDT500/501 Watchdog timer"
1819         depends on PCI
1820         ---help---
1821           If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1822 
1823           If you have a PCI-WDT501 watchdog board then you can enable the
1824           temperature sensor by setting the type parameter to 501.
1825 
1826           If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1827           can do this via the tachometer parameter. Only do this if you have a
1828           fan tachometer actually set up.
1829 
1830           To compile this driver as a module, choose M here: the
1831           module will be called wdt_pci.
1832 
1833 #
1834 # USB-based Watchdog Cards
1835 #
1836 
1837 comment "USB-based Watchdog Cards"
1838         depends on USB
1839 
1840 config USBPCWATCHDOG
1841         tristate "Berkshire Products USB-PC Watchdog"
1842         depends on USB
1843         ---help---
1844           This is the driver for the Berkshire Products USB-PC Watchdog card.
1845           This card simply watches your kernel to make sure it doesn't freeze,
1846           and if it does, it reboots your computer after a certain amount of
1847           time. The card can also monitor the internal temperature of the PC.
1848           More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1849 
1850           To compile this driver as a module, choose M here: the
1851           module will be called pcwd_usb.
1852 
1853           Most people will say N.
1854 
1855 comment "Watchdog Pretimeout Governors"
1856 
1857 config WATCHDOG_PRETIMEOUT_GOV
1858         bool "Enable watchdog pretimeout governors"
1859         help
1860           The option allows to select watchdog pretimeout governors.
1861 
1862 if WATCHDOG_PRETIMEOUT_GOV
1863 
1864 choice
1865         prompt "Default Watchdog Pretimeout Governor"
1866         default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1867         help
1868           This option selects a default watchdog pretimeout governor.
1869           The governor takes its action, if a watchdog is capable
1870           to report a pretimeout event.
1871 
1872 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
1873         bool "noop"
1874         select WATCHDOG_PRETIMEOUT_GOV_NOOP
1875         help
1876           Use noop watchdog pretimeout governor by default. If noop
1877           governor is selected by a user, write a short message to
1878           the kernel log buffer and don't do any system changes.
1879 
1880 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1881         bool "panic"
1882         select WATCHDOG_PRETIMEOUT_GOV_PANIC
1883         help
1884           Use panic watchdog pretimeout governor by default, if
1885           a watchdog pretimeout event happens, consider that
1886           a watchdog feeder is dead and reboot is unavoidable.
1887 
1888 endchoice
1889 
1890 config WATCHDOG_PRETIMEOUT_GOV_NOOP
1891         tristate "Noop watchdog pretimeout governor"
1892         help
1893           Noop watchdog pretimeout governor, only an informational
1894           message is added to kernel log buffer.
1895 
1896 config WATCHDOG_PRETIMEOUT_GOV_PANIC
1897         tristate "Panic watchdog pretimeout governor"
1898         help
1899           Panic watchdog pretimeout governor, on watchdog pretimeout
1900           event put the kernel into panic.
1901 
1902 endif # WATCHDOG_PRETIMEOUT_GOV
1903 
1904 endif # WATCHDOG

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