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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 Watchdog"
108         depends on MFD_DA9062
109         select WATCHDOG_CORE
110         help
111           Support for the watchdog in the DA9062 PMIC.
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 WM831X_WATCHDOG
156         tristate "WM831x watchdog"
157         depends on MFD_WM831X
158         select WATCHDOG_CORE
159         help
160           Support for the watchdog in the WM831x AudioPlus PMICs.  When
161           the watchdog triggers the system will be reset.
162 
163 config WM8350_WATCHDOG
164         tristate "WM8350 watchdog"
165         depends on MFD_WM8350
166         select WATCHDOG_CORE
167         help
168           Support for the watchdog in the WM8350 AudioPlus PMIC.  When
169           the watchdog triggers the system will be reset.
170 
171 config XILINX_WATCHDOG
172         tristate "Xilinx Watchdog timer"
173         depends on HAS_IOMEM
174         select WATCHDOG_CORE
175         help
176           Watchdog driver for the xps_timebase_wdt ip core.
177 
178           To compile this driver as a module, choose M here: the
179           module will be called of_xilinx_wdt.
180 
181 config ZIIRAVE_WATCHDOG
182         tristate "Zodiac RAVE Watchdog Timer"
183         depends on I2C
184         select WATCHDOG_CORE
185         help
186           Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
187           Processor.
188 
189           To compile this driver as a module, choose M here: the
190           module will be called ziirave_wdt.
191 
192 # ALPHA Architecture
193 
194 # ARM Architecture
195 
196 config ARM_SP805_WATCHDOG
197         tristate "ARM SP805 Watchdog"
198         depends on (ARM || ARM64) && ARM_AMBA
199         select WATCHDOG_CORE
200         help
201           ARM Primecell SP805 Watchdog timer. This will reboot your system when
202           the timeout is reached.
203 
204 config ARM_SBSA_WATCHDOG
205         tristate "ARM SBSA Generic Watchdog"
206         depends on ARM64
207         depends on ARM_ARCH_TIMER
208         select WATCHDOG_CORE
209         help
210           ARM SBSA Generic Watchdog has two stage timeouts:
211           the first signal (WS0) is for alerting the system by interrupt,
212           the second one (WS1) is a real hardware reset.
213           More details: ARM DEN0029B - Server Base System Architecture (SBSA)
214 
215           This driver can operate ARM SBSA Generic Watchdog as a single stage
216           or a two stages watchdog, it depends on the module parameter "action".
217 
218           Note: the maximum timeout in the two stages mode is half of that in
219           the single stage mode.
220 
221           To compile this driver as module, choose M here: The module
222           will be called sbsa_gwdt.
223 
224 config ASM9260_WATCHDOG
225         tristate "Alphascale ASM9260 watchdog"
226         depends on MACH_ASM9260
227         depends on OF
228         select WATCHDOG_CORE
229         select RESET_CONTROLLER
230         help
231           Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
232           system when the timeout is reached.
233 
234 config AT91RM9200_WATCHDOG
235         tristate "AT91RM9200 watchdog"
236         depends on SOC_AT91RM9200 && MFD_SYSCON
237         help
238           Watchdog timer embedded into AT91RM9200 chips. This will reboot your
239           system when the timeout is reached.
240 
241 config AT91SAM9X_WATCHDOG
242         tristate "AT91SAM9X / AT91CAP9 watchdog"
243         depends on ARCH_AT91
244         select WATCHDOG_CORE
245         help
246           Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
247           reboot your system when the timeout is reached.
248 
249 config SAMA5D4_WATCHDOG
250         tristate "Atmel SAMA5D4 Watchdog Timer"
251         depends on ARCH_AT91
252         select WATCHDOG_CORE
253         help
254           Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
255           Its Watchdog Timer Mode Register can be written more than once.
256           This will reboot your system when the timeout is reached.
257 
258 config CADENCE_WATCHDOG
259         tristate "Cadence Watchdog Timer"
260         depends on HAS_IOMEM
261         select WATCHDOG_CORE
262         help
263           Say Y here if you want to include support for the watchdog
264           timer in the Xilinx Zynq.
265 
266 config 21285_WATCHDOG
267         tristate "DC21285 watchdog"
268         depends on FOOTBRIDGE
269         help
270           The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
271           here if you wish to use this. Alternatively say M to compile the
272           driver as a module, which will be called wdt285.
273 
274           This driver does not work on all machines. In particular, early CATS
275           boards have hardware problems that will cause the machine to simply
276           lock up if the watchdog fires.
277 
278           "If in doubt, leave it out" - say N.
279 
280 config 977_WATCHDOG
281         tristate "NetWinder WB83C977 watchdog"
282         depends on FOOTBRIDGE && ARCH_NETWINDER
283         help
284           Say Y here to include support for the WB977 watchdog included in
285           NetWinder machines. Alternatively say M to compile the driver as
286           a module, which will be called wdt977.
287 
288           Not sure? It's safe to say N.
289 
290 config IXP4XX_WATCHDOG
291         tristate "IXP4xx Watchdog"
292         depends on ARCH_IXP4XX
293         help
294           Say Y here if to include support for the watchdog timer
295           in the Intel IXP4xx network processors. This driver can
296           be built as a module by choosing M. The module will
297           be called ixp4xx_wdt.
298 
299           Note: The internal IXP4xx watchdog does a soft CPU reset
300           which doesn't reset any peripherals. There are circumstances
301           where the watchdog will fail to reset the board correctly
302           (e.g., if the boot ROM is in an unreadable state).
303 
304           Say N if you are unsure.
305 
306 config KS8695_WATCHDOG
307         tristate "KS8695 watchdog"
308         depends on ARCH_KS8695
309         help
310           Watchdog timer embedded into KS8695 processor. This will reboot your
311           system when the timeout is reached.
312 
313 config HAVE_S3C2410_WATCHDOG
314         bool
315         help
316           This will include watchdog timer support for Samsung SoCs. If
317           you want to include watchdog support for any machine, kindly
318           select this in the respective mach-XXXX/Kconfig file.
319 
320 config S3C2410_WATCHDOG
321         tristate "S3C2410 Watchdog"
322         depends on HAVE_S3C2410_WATCHDOG
323         select WATCHDOG_CORE
324         select MFD_SYSCON if ARCH_EXYNOS5
325         help
326           Watchdog timer block in the Samsung SoCs. This will reboot
327           the system when the timer expires with the watchdog enabled.
328 
329           The driver is limited by the speed of the system's PCLK
330           signal, so with reasonably fast systems (PCLK around 50-66MHz)
331           then watchdog intervals of over approximately 20seconds are
332           unavailable.
333 
334           The driver can be built as a module by choosing M, and will
335           be called s3c2410_wdt
336 
337 config SA1100_WATCHDOG
338         tristate "SA1100/PXA2xx watchdog"
339         depends on ARCH_SA1100 || ARCH_PXA
340         help
341           Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
342           reboot your system when timeout is reached.
343 
344           NOTE: once enabled, this timer cannot be disabled.
345 
346           To compile this driver as a module, choose M here: the
347           module will be called sa1100_wdt.
348 
349 config DW_WATCHDOG
350         tristate "Synopsys DesignWare watchdog"
351         depends on HAS_IOMEM
352         select WATCHDOG_CORE
353         help
354           Say Y here if to include support for the Synopsys DesignWare
355           watchdog timer found in many chips.
356           To compile this driver as a module, choose M here: the
357           module will be called dw_wdt.
358 
359 config EP93XX_WATCHDOG
360         tristate "EP93xx Watchdog"
361         depends on ARCH_EP93XX
362         select WATCHDOG_CORE
363         help
364           Say Y here if to include support for the watchdog timer
365           embedded in the Cirrus Logic EP93xx family of devices.
366 
367           To compile this driver as a module, choose M here: the
368           module will be called ep93xx_wdt.
369 
370 config OMAP_WATCHDOG
371         tristate "OMAP Watchdog"
372         depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
373         select WATCHDOG_CORE
374         help
375           Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
376           here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
377 
378 config PNX4008_WATCHDOG
379         tristate "LPC32XX Watchdog"
380         depends on ARCH_LPC32XX
381         select WATCHDOG_CORE
382         help
383           Say Y here if to include support for the watchdog timer
384           in the LPC32XX processor.
385           This driver can be built as a module by choosing M. The module
386           will be called pnx4008_wdt.
387 
388           Say N if you are unsure.
389 
390 config IOP_WATCHDOG
391         tristate "IOP Watchdog"
392         depends on ARCH_IOP13XX
393         select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
394         help
395           Say Y here if to include support for the watchdog timer
396           in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
397           be built as a module by choosing M. The module will
398           be called iop_wdt.
399 
400           Note: The IOP13XX watchdog does an Internal Bus Reset which will
401           affect both cores and the peripherals of the IOP.  The ATU-X
402           and/or ATUe configuration registers will remain intact, but if
403           operating as an Root Complex and/or Central Resource, the PCI-X
404           and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
405 
406 config DAVINCI_WATCHDOG
407         tristate "DaVinci watchdog"
408         depends on ARCH_DAVINCI || ARCH_KEYSTONE
409         select WATCHDOG_CORE
410         help
411           Say Y here if to include support for the watchdog timer
412           in the DaVinci DM644x/DM646x or Keystone processors.
413           To compile this driver as a module, choose M here: the
414           module will be called davinci_wdt.
415 
416           NOTE: once enabled, this timer cannot be disabled.
417           Say N if you are unsure.
418 
419 config ORION_WATCHDOG
420         tristate "Orion watchdog"
421         depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
422         depends on ARM
423         select WATCHDOG_CORE
424         help
425           Say Y here if to include support for the watchdog timer
426           in the Marvell Orion5x and Kirkwood ARM SoCs.
427           To compile this driver as a module, choose M here: the
428           module will be called orion_wdt.
429 
430 config RN5T618_WATCHDOG
431         tristate "Ricoh RN5T618 watchdog"
432         depends on MFD_RN5T618
433         select WATCHDOG_CORE
434         help
435           If you say yes here you get support for watchdog on the Ricoh
436           RN5T618 PMIC.
437 
438           This driver can also be built as a module.  If so, the module
439           will be called rn5t618_wdt.
440 
441 config SUNXI_WATCHDOG
442         tristate "Allwinner SoCs watchdog support"
443         depends on ARCH_SUNXI
444         select WATCHDOG_CORE
445         help
446           Say Y here to include support for the watchdog timer
447           in Allwinner SoCs.
448           To compile this driver as a module, choose M here: the
449           module will be called sunxi_wdt.
450 
451 config COH901327_WATCHDOG
452         bool "ST-Ericsson COH 901 327 watchdog"
453         depends on ARCH_U300
454         default y if MACH_U300
455         select WATCHDOG_CORE
456         help
457           Say Y here to include Watchdog timer support for the
458           watchdog embedded into the ST-Ericsson U300 series platforms.
459           This watchdog is used to reset the system and thus cannot be
460           compiled as a module.
461 
462 config TWL4030_WATCHDOG
463         tristate "TWL4030 Watchdog"
464         depends on TWL4030_CORE
465         select WATCHDOG_CORE
466         help
467           Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
468           watchdog timer support for TWL4030 chips.
469 
470 config STMP3XXX_RTC_WATCHDOG
471         tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
472         depends on RTC_DRV_STMP
473         select WATCHDOG_CORE
474         help
475           Say Y here to include support for the watchdog timer inside
476           the RTC for the STMP37XX/378X or i.MX23/28 SoC.
477           To compile this driver as a module, choose M here: the
478           module will be called stmp3xxx_rtc_wdt.
479 
480 config NUC900_WATCHDOG
481         tristate "Nuvoton NUC900 watchdog"
482         depends on ARCH_W90X900
483         help
484           Say Y here if to include support for the watchdog timer
485           for the Nuvoton NUC900 series SoCs.
486           To compile this driver as a module, choose M here: the
487           module will be called nuc900_wdt.
488 
489 config TS4800_WATCHDOG
490         tristate "TS-4800 Watchdog"
491         depends on HAS_IOMEM && OF
492         depends on SOC_IMX51 || COMPILE_TEST
493         select WATCHDOG_CORE
494         select MFD_SYSCON
495         help
496           Technologic Systems TS-4800 has watchdog timer implemented in
497           an external FPGA. Say Y here if you want to support for the
498           watchdog timer on TS-4800 board.
499 
500 config TS72XX_WATCHDOG
501         tristate "TS-72XX SBC Watchdog"
502         depends on MACH_TS72XX
503         help
504           Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
505           watchdog timer implemented in a external CPLD chip. Say Y here
506           if you want to support for the watchdog timer on TS-72XX boards.
507 
508           To compile this driver as a module, choose M here: the
509           module will be called ts72xx_wdt.
510 
511 config MAX63XX_WATCHDOG
512         tristate "Max63xx watchdog"
513         depends on HAS_IOMEM
514         select WATCHDOG_CORE
515         help
516           Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
517 
518 config MAX77620_WATCHDOG
519         tristate "Maxim Max77620 Watchdog Timer"
520         depends on MFD_MAX77620
521         help
522          This is the driver for the Max77620 watchdog timer.
523          Say 'Y' here to enable the watchdog timer support for
524          MAX77620 chips. To compile this driver as a module,
525          choose M here: the module will be called max77620_wdt.
526 
527 config IMX2_WDT
528         tristate "IMX2+ Watchdog"
529         depends on ARCH_MXC || ARCH_LAYERSCAPE
530         select REGMAP_MMIO
531         select WATCHDOG_CORE
532         help
533           This is the driver for the hardware watchdog
534           on the Freescale IMX2 and later processors.
535           If you have one of these processors and wish to have
536           watchdog support enabled, say Y, otherwise say N.
537 
538           To compile this driver as a module, choose M here: the
539           module will be called imx2_wdt.
540 
541 config UX500_WATCHDOG
542         tristate "ST-Ericsson Ux500 watchdog"
543         depends on MFD_DB8500_PRCMU
544         select WATCHDOG_CORE
545         default y
546         help
547           Say Y here to include Watchdog timer support for the watchdog
548           existing in the prcmu of ST-Ericsson Ux500 series platforms.
549 
550           To compile this driver as a module, choose M here: the
551           module will be called ux500_wdt.
552 
553 config RETU_WATCHDOG
554         tristate "Retu watchdog"
555         depends on MFD_RETU
556         select WATCHDOG_CORE
557         help
558           Retu watchdog driver for Nokia Internet Tablets (770, N800,
559           N810). At least on N800 the watchdog cannot be disabled, so
560           this driver is essential and you should enable it.
561 
562           To compile this driver as a module, choose M here: the
563           module will be called retu_wdt.
564 
565 config MOXART_WDT
566         tristate "MOXART watchdog"
567         depends on ARCH_MOXART
568         help
569           Say Y here to include Watchdog timer support for the watchdog
570           existing on the MOXA ART SoC series platforms.
571 
572           To compile this driver as a module, choose M here: the
573           module will be called moxart_wdt.
574 
575 config SIRFSOC_WATCHDOG
576         tristate "SiRFSOC watchdog"
577         depends on ARCH_SIRF
578         select WATCHDOG_CORE
579         default y
580         help
581           Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
582           the watchdog triggers the system will be reset.
583 
584 config ST_LPC_WATCHDOG
585         tristate "STMicroelectronics LPC Watchdog"
586         depends on ARCH_STI
587         depends on OF
588         select WATCHDOG_CORE
589         help
590           Say Y here to include STMicroelectronics Low Power Controller
591           (LPC) based Watchdog timer support.
592 
593           To compile this driver as a module, choose M here: the
594           module will be called st_lpc_wdt.
595 
596 config TEGRA_WATCHDOG
597         tristate "Tegra watchdog"
598         depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
599         select WATCHDOG_CORE
600         help
601           Say Y here to include support for the watchdog timer
602           embedded in NVIDIA Tegra SoCs.
603 
604           To compile this driver as a module, choose M here: the
605           module will be called tegra_wdt.
606 
607 config QCOM_WDT
608         tristate "QCOM watchdog"
609         depends on HAS_IOMEM
610         depends on ARCH_QCOM
611         select WATCHDOG_CORE
612         help
613           Say Y here to include Watchdog timer support for the watchdog found
614           on QCOM chipsets.  Currently supported targets are the MSM8960,
615           APQ8064, and IPQ8064.
616 
617           To compile this driver as a module, choose M here: the
618           module will be called qcom_wdt.
619 
620 config MESON_GXBB_WATCHDOG
621         tristate "Amlogic Meson GXBB SoCs watchdog support"
622         depends on ARCH_MESON
623         select WATCHDOG_CORE
624         help
625           Say Y here to include support for the watchdog timer
626           in Amlogic Meson GXBB SoCs.
627           To compile this driver as a module, choose M here: the
628           module will be called meson_gxbb_wdt.
629 
630 config MESON_WATCHDOG
631         tristate "Amlogic Meson SoCs watchdog support"
632         depends on ARCH_MESON
633         select WATCHDOG_CORE
634         help
635           Say Y here to include support for the watchdog timer
636           in Amlogic Meson SoCs.
637           To compile this driver as a module, choose M here: the
638           module will be called meson_wdt.
639 
640 config MEDIATEK_WATCHDOG
641         tristate "Mediatek SoCs watchdog support"
642         depends on ARCH_MEDIATEK
643         select WATCHDOG_CORE
644         help
645           Say Y here to include support for the watchdog timer
646           in Mediatek SoCs.
647           To compile this driver as a module, choose M here: the
648           module will be called mtk_wdt.
649 
650 config DIGICOLOR_WATCHDOG
651         tristate "Conexant Digicolor SoCs watchdog support"
652         depends on ARCH_DIGICOLOR
653         select WATCHDOG_CORE
654         help
655           Say Y here to include support for the watchdog timer
656           in Conexant Digicolor SoCs.
657           To compile this driver as a module, choose M here: the
658           module will be called digicolor_wdt.
659 
660 config LPC18XX_WATCHDOG
661         tristate "LPC18xx/43xx Watchdog"
662         depends on ARCH_LPC18XX || COMPILE_TEST
663         depends on HAS_IOMEM
664         select WATCHDOG_CORE
665         help
666           Say Y here if to include support for the watchdog timer
667           in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
668           processors.
669           To compile this driver as a module, choose M here: the
670           module will be called lpc18xx_wdt.
671 
672 config ATLAS7_WATCHDOG
673         tristate "CSRatlas7 watchdog"
674         depends on ARCH_ATLAS7
675         help
676           Say Y here to include Watchdog timer support for the watchdog
677           existing on the CSRatlas7 series platforms.
678 
679           To compile this driver as a module, choose M here: the
680           module will be called atlas7_wdt.
681 
682 config RENESAS_WDT
683         tristate "Renesas WDT Watchdog"
684         depends on ARCH_RENESAS || COMPILE_TEST
685         select WATCHDOG_CORE
686         help
687           This driver adds watchdog support for the integrated watchdogs in the
688           Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
689 
690 config ASPEED_WATCHDOG
691         tristate "Aspeed 2400 watchdog support"
692         depends on ARCH_ASPEED || COMPILE_TEST
693         select WATCHDOG_CORE
694         help
695           Say Y here to include support for the watchdog timer
696           in Apseed BMC SoCs.
697 
698           This driver is required to reboot the SoC.
699 
700           To compile this driver as a module, choose M here: the
701           module will be called aspeed_wdt.
702 
703 # AVR32 Architecture
704 
705 config AT32AP700X_WDT
706         tristate "AT32AP700x watchdog"
707         depends on CPU_AT32AP700X
708         help
709           Watchdog timer embedded into AT32AP700x devices. This will reboot
710           your system when the timeout is reached.
711 
712 # BLACKFIN Architecture
713 
714 config BFIN_WDT
715         tristate "Blackfin On-Chip Watchdog Timer"
716         depends on BLACKFIN
717         ---help---
718           If you say yes here you will get support for the Blackfin On-Chip
719           Watchdog Timer. If you have one of these processors and wish to
720           have watchdog support enabled, say Y, otherwise say N.
721 
722           To compile this driver as a module, choose M here: the
723           module will be called bfin_wdt.
724 
725 # CRIS Architecture
726 
727 # FRV Architecture
728 
729 # X86 (i386 + ia64 + x86_64) Architecture
730 
731 config ACQUIRE_WDT
732         tristate "Acquire SBC Watchdog Timer"
733         depends on X86
734         ---help---
735           This is the driver for the hardware watchdog on Single Board
736           Computers produced by Acquire Inc (and others). This watchdog
737           simply watches your kernel to make sure it doesn't freeze, and if
738           it does, it reboots your computer after a certain amount of time.
739 
740           To compile this driver as a module, choose M here: the
741           module will be called acquirewdt.
742 
743           Most people will say N.
744 
745 config ADVANTECH_WDT
746         tristate "Advantech SBC Watchdog Timer"
747         depends on X86
748         help
749           If you are configuring a Linux kernel for the Advantech single-board
750           computer, say `Y' here to support its built-in watchdog timer
751           feature. More information can be found at
752           <http://www.advantech.com.tw/products/>
753 
754 config ALIM1535_WDT
755         tristate "ALi M1535 PMU Watchdog Timer"
756         depends on X86 && PCI
757         ---help---
758           This is the driver for the hardware watchdog on the ALi M1535 PMU.
759 
760           To compile this driver as a module, choose M here: the
761           module will be called alim1535_wdt.
762 
763           Most people will say N.
764 
765 config ALIM7101_WDT
766         tristate "ALi M7101 PMU Computer Watchdog"
767         depends on PCI
768         help
769           This is the driver for the hardware watchdog on the ALi M7101 PMU
770           as used in the x86 Cobalt servers and also found in some
771           SPARC Netra servers too.
772 
773           To compile this driver as a module, choose M here: the
774           module will be called alim7101_wdt.
775 
776           Most people will say N.
777 
778 config EBC_C384_WDT
779         tristate "WinSystems EBC-C384 Watchdog Timer"
780         depends on X86 && ISA_BUS_API
781         select WATCHDOG_CORE
782         help
783           Enables watchdog timer support for the watchdog timer on the
784           WinSystems EBC-C384 motherboard. The timeout may be configured via
785           the timeout module parameter.
786 
787 config F71808E_WDT
788         tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
789         depends on X86
790         help
791           This is the driver for the hardware watchdog on the Fintek
792           F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
793 
794           You can compile this driver directly into the kernel, or use
795           it as a module.  The module will be called f71808e_wdt.
796 
797 config SP5100_TCO
798         tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
799         depends on X86 && PCI
800         ---help---
801           Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
802           (Total Cost of Ownership) timer is a watchdog timer that will reboot
803           the machine after its expiration. The expiration time can be
804           configured with the "heartbeat" parameter.
805 
806           To compile this driver as a module, choose M here: the
807           module will be called sp5100_tco.
808 
809 config GEODE_WDT
810         tristate "AMD Geode CS5535/CS5536 Watchdog"
811         depends on CS5535_MFGPT
812         help
813           This driver enables a watchdog capability built into the
814           CS5535/CS5536 companion chips for the AMD Geode GX and LX
815           processors.  This watchdog watches your kernel to make sure
816           it doesn't freeze, and if it does, it reboots your computer after
817           a certain amount of time.
818 
819           You can compile this driver directly into the kernel, or use
820           it as a module.  The module will be called geodewdt.
821 
822 config SC520_WDT
823         tristate "AMD Elan SC520 processor Watchdog"
824         depends on MELAN
825         help
826           This is the driver for the hardware watchdog built in to the
827           AMD "Elan" SC520 microcomputer commonly used in embedded systems.
828           This watchdog simply watches your kernel to make sure it doesn't
829           freeze, and if it does, it reboots your computer after a certain
830           amount of time.
831 
832           You can compile this driver directly into the kernel, or use
833           it as a module.  The module will be called sc520_wdt.
834 
835 config SBC_FITPC2_WATCHDOG
836         tristate "Compulab SBC-FITPC2 watchdog"
837         depends on X86
838         ---help---
839           This is the driver for the built-in watchdog timer on the fit-PC2,
840           fit-PC2i, CM-iAM single-board computers made by Compulab.
841 
842           It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
843           When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
844 
845           Entering BIOS setup temporary disables watchdog operation regardless to current state,
846           so system will not be restarted while user in BIOS setup.
847 
848           Once watchdog was enabled the system will be restarted every
849           "Watchdog Timer Value" period, so to prevent it user can restart or
850           disable the watchdog.
851 
852           To compile this driver as a module, choose M here: the
853           module will be called sbc_fitpc2_wdt.
854 
855           Most people will say N.
856 
857 config EUROTECH_WDT
858         tristate "Eurotech CPU-1220/1410 Watchdog Timer"
859         depends on X86
860         help
861           Enable support for the watchdog timer on the Eurotech CPU-1220 and
862           CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
863           information are at <http://www.eurotech.it/>.
864 
865 config IB700_WDT
866         tristate "IB700 SBC Watchdog Timer"
867         depends on X86
868         ---help---
869           This is the driver for the hardware watchdog on the IB700 Single
870           Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
871           simply watches your kernel to make sure it doesn't freeze, and if
872           it does, it reboots your computer after a certain amount of time.
873 
874           This driver is like the WDT501 driver but for slightly different hardware.
875 
876           To compile this driver as a module, choose M here: the
877           module will be called ib700wdt.
878 
879           Most people will say N.
880 
881 config IBMASR
882         tristate "IBM Automatic Server Restart"
883         depends on X86
884         help
885           This is the driver for the IBM Automatic Server Restart watchdog
886           timer built-in into some eServer xSeries machines.
887 
888           To compile this driver as a module, choose M here: the
889           module will be called ibmasr.
890 
891 config WAFER_WDT
892         tristate "ICP Single Board Computer Watchdog Timer"
893         depends on X86
894         help
895           This is a driver for the hardware watchdog on the ICP Single
896           Board Computer. This driver is working on (at least) the following
897           IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
898 
899           To compile this driver as a module, choose M here: the
900           module will be called wafer5823wdt.
901 
902 config I6300ESB_WDT
903         tristate "Intel 6300ESB Timer/Watchdog"
904         depends on PCI
905         ---help---
906           Hardware driver for the watchdog timer built into the Intel
907           6300ESB controller hub.
908 
909           To compile this driver as a module, choose M here: the
910           module will be called i6300esb.
911 
912 config IE6XX_WDT
913         tristate "Intel Atom E6xx Watchdog"
914         depends on X86 && PCI
915         select WATCHDOG_CORE
916         select MFD_CORE
917         select LPC_SCH
918         ---help---
919           Hardware driver for the watchdog timer built into the Intel
920           Atom E6XX (TunnelCreek) processor.
921 
922           To compile this driver as a module, choose M here: the
923           module will be called ie6xx_wdt.
924 
925 config INTEL_SCU_WATCHDOG
926         bool "Intel SCU Watchdog for Mobile Platforms"
927         depends on X86_INTEL_MID
928         ---help---
929           Hardware driver for the watchdog time built into the Intel SCU
930           for Intel Mobile Platforms.
931 
932           To compile this driver as a module, choose M here.
933 
934 config INTEL_MID_WATCHDOG
935         tristate "Intel MID Watchdog Timer"
936         depends on X86_INTEL_MID
937         select WATCHDOG_CORE
938         ---help---
939           Watchdog timer driver built into the Intel SCU for Intel MID
940           Platforms.
941 
942           This driver currently supports only the watchdog evolution
943           implementation in SCU, available for Merrifield generation.
944 
945           To compile this driver as a module, choose M here.
946 
947 config ITCO_WDT
948         tristate "Intel TCO Timer/Watchdog"
949         depends on (X86 || IA64) && PCI
950         select WATCHDOG_CORE
951         depends on I2C || I2C=n
952         select LPC_ICH if !EXPERT
953         select I2C_I801 if !EXPERT && I2C
954         ---help---
955           Hardware driver for the intel TCO timer based watchdog devices.
956           These drivers are included in the Intel 82801 I/O Controller
957           Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
958           controller hub.
959 
960           The TCO (Total Cost of Ownership) timer is a watchdog timer
961           that will reboot the machine after its second expiration. The
962           expiration time can be configured with the "heartbeat" parameter.
963 
964           On some motherboards the driver may fail to reset the chipset's
965           NO_REBOOT flag which prevents the watchdog from rebooting the
966           machine. If this is the case you will get a kernel message like
967           "failed to reset NO_REBOOT flag, reboot disabled by hardware".
968 
969           To compile this driver as a module, choose M here: the
970           module will be called iTCO_wdt.
971 
972 config ITCO_VENDOR_SUPPORT
973         bool "Intel TCO Timer/Watchdog Specific Vendor Support"
974         depends on ITCO_WDT
975         ---help---
976           Add vendor specific support to the intel TCO timer based watchdog
977           devices. At this moment we only have additional support for some
978           SuperMicro Inc. motherboards.
979 
980 config IT8712F_WDT
981         tristate "IT8712F (Smart Guardian) Watchdog Timer"
982         depends on X86
983         ---help---
984           This is the driver for the built-in watchdog timer on the IT8712F
985           Super I/0 chipset used on many motherboards.
986 
987           If the driver does not work, then make sure that the game port in
988           the BIOS is enabled.
989 
990           To compile this driver as a module, choose M here: the
991           module will be called it8712f_wdt.
992 
993 config IT87_WDT
994         tristate "IT87 Watchdog Timer"
995         depends on X86
996         ---help---
997           This is the driver for the hardware watchdog on the ITE IT8702,
998           IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
999           Super I/O chips.
1000 
1001           If the driver does not work, then make sure that the game port in
1002           the BIOS is enabled.
1003 
1004           This watchdog simply watches your kernel to make sure it doesn't
1005           freeze, and if it does, it reboots your computer after a certain
1006           amount of time.
1007 
1008           To compile this driver as a module, choose M here: the module will
1009           be called it87_wdt.
1010 
1011 config HP_WATCHDOG
1012         tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1013         depends on X86 && PCI
1014         help
1015           A software monitoring watchdog and NMI sourcing driver. This driver
1016           will detect lockups and provide a stack trace. This is a driver that
1017           will only load on an HP ProLiant system with a minimum of iLO2 support.
1018           To compile this driver as a module, choose M here: the module will be
1019           called hpwdt.
1020 
1021 config KEMPLD_WDT
1022         tristate "Kontron COM Watchdog Timer"
1023         depends on MFD_KEMPLD
1024         select WATCHDOG_CORE
1025         help
1026           Support for the PLD watchdog on some Kontron ETX and COMexpress
1027           (ETXexpress) modules
1028 
1029           This driver can also be built as a module. If so, the module will be
1030           called kempld_wdt.
1031 
1032 config HPWDT_NMI_DECODING
1033         bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1034         depends on HP_WATCHDOG
1035         default y
1036         help
1037           When an NMI occurs this feature will make the necessary BIOS calls to
1038           log the cause of the NMI.
1039 
1040 config SC1200_WDT
1041         tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1042         depends on X86
1043         help
1044           This is a driver for National Semiconductor PC87307/PC97307 hardware
1045           watchdog cards as found on the SC1200. This watchdog is mainly used
1046           for power management purposes and can be used to power down the device
1047           during inactivity periods (includes interrupt activity monitoring).
1048 
1049           To compile this driver as a module, choose M here: the
1050           module will be called sc1200wdt.
1051 
1052           Most people will say N.
1053 
1054 config SCx200_WDT
1055         tristate "National Semiconductor SCx200 Watchdog"
1056         depends on SCx200 && PCI
1057         help
1058           Enable the built-in watchdog timer support on the National
1059           Semiconductor SCx200 processors.
1060 
1061           If compiled as a module, it will be called scx200_wdt.
1062 
1063 config PC87413_WDT
1064         tristate "NS PC87413 watchdog"
1065         depends on X86
1066         ---help---
1067           This is the driver for the hardware watchdog on the PC87413 chipset
1068           This watchdog simply watches your kernel to make sure it doesn't
1069           freeze, and if it does, it reboots your computer after a certain
1070           amount of time.
1071 
1072           To compile this driver as a module, choose M here: the
1073           module will be called pc87413_wdt.
1074 
1075           Most people will say N.
1076 
1077 config NV_TCO
1078         tristate "nVidia TCO Timer/Watchdog"
1079         depends on X86 && PCI
1080         ---help---
1081           Hardware driver for the TCO timer built into the nVidia Hub family
1082           (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1083           watchdog timer that will reboot the machine after its second
1084           expiration. The expiration time can be configured with the
1085           "heartbeat" parameter.
1086 
1087           On some motherboards the driver may fail to reset the chipset's
1088           NO_REBOOT flag which prevents the watchdog from rebooting the
1089           machine. If this is the case you will get a kernel message like
1090           "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1091 
1092           To compile this driver as a module, choose M here: the
1093           module will be called nv_tco.
1094 
1095 config RDC321X_WDT
1096         tristate "RDC R-321x SoC watchdog"
1097         depends on X86_RDC321X
1098         help
1099           This is the driver for the built in hardware watchdog
1100           in the RDC R-321x SoC.
1101 
1102           To compile this driver as a module, choose M here: the
1103           module will be called rdc321x_wdt.
1104 
1105 config 60XX_WDT
1106         tristate "SBC-60XX Watchdog Timer"
1107         depends on X86
1108         help
1109           This driver can be used with the watchdog timer found on some
1110           single board computers, namely the 6010 PII based computer.
1111           It may well work with other cards.  It reads port 0x443 to enable
1112           and re-set the watchdog timer, and reads port 0x45 to disable
1113           the watchdog.  If you have a card that behave in similar ways,
1114           you can probably make this driver work with your card as well.
1115 
1116           You can compile this driver directly into the kernel, or use
1117           it as a module.  The module will be called sbc60xxwdt.
1118 
1119 config SBC8360_WDT
1120         tristate "SBC8360 Watchdog Timer"
1121         depends on X86_32
1122         ---help---
1123 
1124           This is the driver for the hardware watchdog on the SBC8360 Single
1125           Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1126 
1127           To compile this driver as a module, choose M here: the
1128           module will be called sbc8360.
1129 
1130           Most people will say N.
1131 
1132 config SBC7240_WDT
1133         tristate "SBC Nano 7240 Watchdog Timer"
1134         depends on X86_32 && !UML
1135         ---help---
1136           This is the driver for the hardware watchdog found on the IEI
1137           single board computers EPIC Nano 7240 (and likely others). This
1138           watchdog simply watches your kernel to make sure it doesn't freeze,
1139           and if it does, it reboots your computer after a certain amount of
1140           time.
1141 
1142           To compile this driver as a module, choose M here: the
1143           module will be called sbc7240_wdt.
1144 
1145 config CPU5_WDT
1146         tristate "SMA CPU5 Watchdog"
1147         depends on X86
1148         ---help---
1149           TBD.
1150           To compile this driver as a module, choose M here: the
1151           module will be called cpu5wdt.
1152 
1153 config SMSC_SCH311X_WDT
1154         tristate "SMSC SCH311X Watchdog Timer"
1155         depends on X86
1156         ---help---
1157           This is the driver for the hardware watchdog timer on the
1158           SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1159           (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1160           serial ports).
1161 
1162           To compile this driver as a module, choose M here: the
1163           module will be called sch311x_wdt.
1164 
1165 config SMSC37B787_WDT
1166         tristate "Winbond SMsC37B787 Watchdog Timer"
1167         depends on X86
1168         ---help---
1169           This is the driver for the hardware watchdog component on the
1170           Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1171           from Vision Systems and maybe others.
1172 
1173           This watchdog simply watches your kernel to make sure it doesn't
1174           freeze, and if it does, it reboots your computer after a certain
1175           amount of time.
1176 
1177           Usually a userspace daemon will notify the kernel WDT driver that
1178           userspace is still alive, at regular intervals.
1179 
1180           To compile this driver as a module, choose M here: the
1181           module will be called smsc37b787_wdt.
1182 
1183           Most people will say N.
1184 
1185 config VIA_WDT
1186         tristate "VIA Watchdog Timer"
1187         depends on X86 && PCI
1188         select WATCHDOG_CORE
1189         ---help---
1190         This is the driver for the hardware watchdog timer on VIA
1191         southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1192 
1193         To compile this driver as a module, choose M here; the module
1194         will be called via_wdt.
1195 
1196         Most people will say N.
1197 
1198 config W83627HF_WDT
1199         tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1200         depends on X86
1201         select WATCHDOG_CORE
1202         ---help---
1203           This is the driver for the hardware watchdog on the following
1204           Super I/O chips.
1205                 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1206                 W83637HF
1207                 W83667HG/HG-B
1208                 W83687THF
1209                 W83697HF
1210                 W83697UG
1211                 NCT6775
1212                 NCT6776
1213                 NCT6779
1214                 NCT6791
1215                 NCT6792
1216                 NCT6102D/04D/06D
1217 
1218           This watchdog simply watches your kernel to make sure it doesn't
1219           freeze, and if it does, it reboots your computer after a certain
1220           amount of time.
1221 
1222           To compile this driver as a module, choose M here: the
1223           module will be called w83627hf_wdt.
1224 
1225           Most people will say N.
1226 
1227 config W83877F_WDT
1228         tristate "W83877F (EMACS) Watchdog Timer"
1229         depends on X86
1230         ---help---
1231           This is the driver for the hardware watchdog on the W83877F chipset
1232           as used in EMACS PC-104 motherboards (and likely others).  This
1233           watchdog simply watches your kernel to make sure it doesn't freeze,
1234           and if it does, it reboots your computer after a certain amount of
1235           time.
1236 
1237           To compile this driver as a module, choose M here: the
1238           module will be called w83877f_wdt.
1239 
1240           Most people will say N.
1241 
1242 config W83977F_WDT
1243         tristate "W83977F (PCM-5335) Watchdog Timer"
1244         depends on X86
1245         ---help---
1246           This is the driver for the hardware watchdog on the W83977F I/O chip
1247           as used in AAEON's PCM-5335 SBC (and likely others).  This
1248           watchdog simply watches your kernel to make sure it doesn't freeze,
1249           and if it does, it reboots your computer after a certain amount of
1250           time.
1251 
1252           To compile this driver as a module, choose M here: the
1253           module will be called w83977f_wdt.
1254 
1255 config MACHZ_WDT
1256         tristate "ZF MachZ Watchdog"
1257         depends on X86
1258         ---help---
1259           If you are using a ZF Micro MachZ processor, say Y here, otherwise
1260           N.  This is the driver for the watchdog timer built-in on that
1261           processor using ZF-Logic interface.  This watchdog simply watches
1262           your kernel to make sure it doesn't freeze, and if it does, it
1263           reboots your computer after a certain amount of time.
1264 
1265           To compile this driver as a module, choose M here: the
1266           module will be called machzwd.
1267 
1268 config SBC_EPX_C3_WATCHDOG
1269         tristate "Winsystems SBC EPX-C3 watchdog"
1270         depends on X86
1271         ---help---
1272           This is the driver for the built-in watchdog timer on the EPX-C3
1273           Single-board computer made by Winsystems, Inc.
1274 
1275           *Note*: This hardware watchdog is not probeable and thus there
1276           is no way to know if writing to its IO address will corrupt
1277           your system or have any real effect.  The only way to be sure
1278           that this driver does what you want is to make sure you
1279           are running it on an EPX-C3 from Winsystems with the watchdog
1280           timer at IO address 0x1ee and 0x1ef.  It will write to both those
1281           IO ports.  Basically, the assumption is made that if you compile
1282           this driver into your kernel and/or load it as a module, that you
1283           know what you are doing and that you are in fact running on an
1284           EPX-C3 board!
1285 
1286           To compile this driver as a module, choose M here: the
1287           module will be called sbc_epx_c3.
1288 
1289 config INTEL_MEI_WDT
1290         tristate "Intel MEI iAMT Watchdog"
1291         depends on INTEL_MEI && X86
1292         select WATCHDOG_CORE
1293         ---help---
1294           A device driver for the Intel MEI iAMT watchdog.
1295 
1296           The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1297           Whenever the OS hangs or crashes, iAMT will send an event
1298           to any subscriber to this event. The watchdog doesn't reset the
1299           the platform.
1300 
1301           To compile this driver as a module, choose M here:
1302           the module will be called mei_wdt.
1303 
1304 config NI903X_WDT
1305         tristate "NI 903x/913x Watchdog"
1306         depends on X86 && ACPI
1307         select WATCHDOG_CORE
1308         ---help---
1309           This is the driver for the watchdog timer on the National Instruments
1310           903x/913x real-time controllers.
1311 
1312           To compile this driver as a module, choose M here: the module will be
1313           called ni903x_wdt.
1314 
1315 # M32R Architecture
1316 
1317 # M68K Architecture
1318 
1319 config M54xx_WATCHDOG
1320         tristate "MCF54xx watchdog support"
1321         depends on M548x
1322         help
1323           To compile this driver as a module, choose M here: the
1324           module will be called m54xx_wdt.
1325 
1326 # MicroBlaze Architecture
1327 
1328 # MIPS Architecture
1329 
1330 config ATH79_WDT
1331         tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1332         depends on ATH79
1333         help
1334           Hardware driver for the built-in watchdog timer on the Atheros
1335           AR71XX/AR724X/AR913X SoCs.
1336 
1337 config BCM47XX_WDT
1338         tristate "Broadcom BCM47xx Watchdog Timer"
1339         depends on BCM47XX || ARCH_BCM_5301X
1340         select WATCHDOG_CORE
1341         help
1342           Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1343 
1344 config RC32434_WDT
1345         tristate "IDT RC32434 SoC Watchdog Timer"
1346         depends on MIKROTIK_RB532
1347         help
1348           Hardware driver for the IDT RC32434 SoC built-in
1349           watchdog timer.
1350 
1351           To compile this driver as a module, choose M here: the
1352           module will be called rc32434_wdt.
1353 
1354 config INDYDOG
1355         tristate "Indy/I2 Hardware Watchdog"
1356         depends on SGI_HAS_INDYDOG
1357         help
1358           Hardware driver for the Indy's/I2's watchdog. This is a
1359           watchdog timer that will reboot the machine after a 60 second
1360           timer expired and no process has written to /dev/watchdog during
1361           that time.
1362 
1363 config JZ4740_WDT
1364         tristate "Ingenic jz4740 SoC hardware watchdog"
1365         depends on MACH_JZ4740
1366         select WATCHDOG_CORE
1367         help
1368           Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1369 
1370 config WDT_MTX1
1371         tristate "MTX-1 Hardware Watchdog"
1372         depends on MIPS_MTX1
1373         help
1374           Hardware driver for the MTX-1 boards. This is a watchdog timer that
1375           will reboot the machine after a 100 seconds timer expired.
1376 
1377 config PNX833X_WDT
1378         tristate "PNX833x Hardware Watchdog"
1379         depends on SOC_PNX8335
1380         help
1381           Hardware driver for the PNX833x's watchdog. This is a
1382           watchdog timer that will reboot the machine after a programmable
1383           timer has expired and no process has written to /dev/watchdog during
1384           that time.
1385 
1386 config SIBYTE_WDOG
1387         tristate "Sibyte SoC hardware watchdog"
1388         depends on CPU_SB1
1389         help
1390           Watchdog driver for the built in watchdog hardware in Sibyte
1391           SoC processors.  There are apparently two watchdog timers
1392           on such processors; this driver supports only the first one,
1393           because currently Linux only supports exporting one watchdog
1394           to userspace.
1395 
1396           To compile this driver as a loadable module, choose M here.
1397           The module will be called sb_wdog.
1398 
1399 config AR7_WDT
1400         tristate "TI AR7 Watchdog Timer"
1401         depends on AR7
1402         help
1403           Hardware driver for the TI AR7 Watchdog Timer.
1404 
1405 config TXX9_WDT
1406         tristate "Toshiba TXx9 Watchdog Timer"
1407         depends on CPU_TX39XX || CPU_TX49XX
1408         select WATCHDOG_CORE
1409         help
1410           Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1411 
1412 config OCTEON_WDT
1413         tristate "Cavium OCTEON SOC family Watchdog Timer"
1414         depends on CAVIUM_OCTEON_SOC
1415         default y
1416         select WATCHDOG_CORE
1417         select EXPORT_UASM if OCTEON_WDT = m
1418         help
1419           Hardware driver for OCTEON's on chip watchdog timer.
1420           Enables the watchdog for all cores running Linux. It
1421           installs a NMI handler and pokes the watchdog based on an
1422           interrupt.  On first expiration of the watchdog, the
1423           interrupt handler pokes it.  The second expiration causes an
1424           NMI that prints a message. The third expiration causes a
1425           global soft reset.
1426 
1427           When userspace has /dev/watchdog open, no poking is done
1428           from the first interrupt, it is then only poked when the
1429           device is written.
1430 
1431 config BCM63XX_WDT
1432         tristate "Broadcom BCM63xx hardware watchdog"
1433         depends on BCM63XX
1434         help
1435           Watchdog driver for the built in watchdog hardware in Broadcom
1436           BCM63xx SoC.
1437 
1438           To compile this driver as a loadable module, choose M here.
1439           The module will be called bcm63xx_wdt.
1440 
1441 config BCM2835_WDT
1442         tristate "Broadcom BCM2835 hardware watchdog"
1443         depends on ARCH_BCM2835
1444         select WATCHDOG_CORE
1445         help
1446           Watchdog driver for the built in watchdog hardware in Broadcom
1447           BCM2835 SoC.
1448 
1449           To compile this driver as a loadable module, choose M here.
1450           The module will be called bcm2835_wdt.
1451 
1452 config BCM_KONA_WDT
1453         tristate "BCM Kona Watchdog"
1454         depends on ARCH_BCM_MOBILE
1455         select WATCHDOG_CORE
1456         help
1457           Support for the watchdog timer on the following Broadcom BCM281xx
1458           family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1459           BCM28155 variants.
1460 
1461           Say 'Y' or 'M' here to enable the driver. The module will be called
1462           bcm_kona_wdt.
1463 
1464 config BCM_KONA_WDT_DEBUG
1465         bool "DEBUGFS support for BCM Kona Watchdog"
1466         depends on BCM_KONA_WDT
1467         help
1468           If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1469           access to the driver's internal data structures as well as watchdog
1470           timer hardware registres.
1471 
1472           If in doubt, say 'N'.
1473 
1474 config BCM7038_WDT
1475         tristate "BCM7038 Watchdog"
1476         select WATCHDOG_CORE
1477         depends on HAS_IOMEM
1478         depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1479         help
1480          Watchdog driver for the built-in hardware in Broadcom 7038 and
1481          later SoCs used in set-top boxes.  BCM7038 was made public
1482          during the 2004 CES, and since then, many Broadcom chips use this
1483          watchdog block, including some cable modem chips.
1484 
1485 config IMGPDC_WDT
1486         tristate "Imagination Technologies PDC Watchdog Timer"
1487         depends on HAS_IOMEM
1488         depends on METAG || MIPS || COMPILE_TEST
1489         select WATCHDOG_CORE
1490         help
1491           Driver for Imagination Technologies PowerDown Controller
1492           Watchdog Timer.
1493 
1494           To compile this driver as a loadable module, choose M here.
1495           The module will be called imgpdc_wdt.
1496 
1497 config LANTIQ_WDT
1498         tristate "Lantiq SoC watchdog"
1499         depends on LANTIQ
1500         help
1501           Hardware driver for the Lantiq SoC Watchdog Timer.
1502 
1503 config RALINK_WDT
1504         tristate "Ralink SoC watchdog"
1505         select WATCHDOG_CORE
1506         depends on RALINK
1507         help
1508           Hardware driver for the Ralink SoC Watchdog Timer.
1509 
1510 config MT7621_WDT
1511         tristate "Mediatek SoC watchdog"
1512         select WATCHDOG_CORE
1513         depends on SOC_MT7620 || SOC_MT7621
1514         help
1515           Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1516 
1517 config PIC32_WDT
1518         tristate "Microchip PIC32 hardware watchdog"
1519         select WATCHDOG_CORE
1520         depends on MACH_PIC32
1521         help
1522           Watchdog driver for the built in watchdog hardware in a PIC32.
1523 
1524           Configuration bits must be set appropriately for the watchdog to be
1525           controlled by this driver.
1526 
1527           To compile this driver as a loadable module, choose M here.
1528           The module will be called pic32-wdt.
1529 
1530 config PIC32_DMT
1531         tristate "Microchip PIC32 Deadman Timer"
1532         select WATCHDOG_CORE
1533         depends on MACH_PIC32
1534         help
1535           Watchdog driver for PIC32 instruction fetch counting timer. This specific
1536           timer is typically be used in misson critical and safety critical
1537           applications, where any single failure of the software functionality
1538           and sequencing must be detected.
1539 
1540           To compile this driver as a loadable module, choose M here.
1541           The module will be called pic32-dmt.
1542 
1543 # PARISC Architecture
1544 
1545 # POWERPC Architecture
1546 
1547 config GEF_WDT
1548         tristate "GE Watchdog Timer"
1549         depends on GE_FPGA
1550         ---help---
1551           Watchdog timer found in a number of GE single board computers.
1552 
1553 config MPC5200_WDT
1554         bool "MPC52xx Watchdog Timer"
1555         depends on PPC_MPC52xx
1556         help
1557           Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1558 
1559 config 8xxx_WDT
1560         tristate "MPC8xxx Platform Watchdog Timer"
1561         depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1562         select WATCHDOG_CORE
1563         help
1564           This driver is for a SoC level watchdog that exists on some
1565           Freescale PowerPC processors. So far this driver supports:
1566           - MPC8xx watchdogs
1567           - MPC83xx watchdogs
1568           - MPC86xx watchdogs
1569 
1570           For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1571 
1572 config MV64X60_WDT
1573         tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1574         depends on MV64X60
1575 
1576 config PIKA_WDT
1577         tristate "PIKA FPGA Watchdog"
1578         depends on WARP
1579         default y
1580         help
1581           This enables the watchdog in the PIKA FPGA. Currently used on
1582           the Warp platform.
1583 
1584 config BOOKE_WDT
1585         tristate "PowerPC Book-E Watchdog Timer"
1586         depends on BOOKE || 4xx
1587         select WATCHDOG_CORE
1588         ---help---
1589           Watchdog driver for PowerPC Book-E chips, such as the Freescale
1590           MPC85xx SOCs and the IBM PowerPC 440.
1591 
1592           Please see Documentation/watchdog/watchdog-api.txt for
1593           more information.
1594 
1595 config BOOKE_WDT_DEFAULT_TIMEOUT
1596         int "PowerPC Book-E Watchdog Timer Default Timeout"
1597         depends on BOOKE_WDT
1598         default 38 if PPC_FSL_BOOK3E
1599         range 0 63 if PPC_FSL_BOOK3E
1600         default 3 if !PPC_FSL_BOOK3E
1601         range 0 3 if !PPC_FSL_BOOK3E
1602         help
1603           Select the default watchdog timer period to be used by the PowerPC
1604           Book-E watchdog driver.  A watchdog "event" occurs when the bit
1605           position represented by this number transitions from zero to one.
1606 
1607           For Freescale Book-E processors, this is a number between 0 and 63.
1608           For other Book-E processors, this is a number between 0 and 3.
1609 
1610           The value can be overridden by the wdt_period command-line parameter.
1611 
1612 config MEN_A21_WDT
1613        tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1614        select WATCHDOG_CORE
1615        depends on GPIOLIB || COMPILE_TEST
1616        help
1617         Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1618 
1619         The driver can also be built as a module. If so, the module will be
1620         called mena21_wdt.
1621 
1622         If unsure select N here.
1623 
1624 # PPC64 Architecture
1625 
1626 config WATCHDOG_RTAS
1627         tristate "RTAS watchdog"
1628         depends on PPC_RTAS
1629         help
1630           This driver adds watchdog support for the RTAS watchdog.
1631 
1632           To compile this driver as a module, choose M here. The module
1633           will be called wdrtas.
1634 
1635 # S390 Architecture
1636 
1637 config DIAG288_WATCHDOG
1638         tristate "System z diag288 Watchdog"
1639         depends on S390
1640         select WATCHDOG_CORE
1641         help
1642           IBM s/390 and zSeries machines running under z/VM 5.1 or later
1643           provide a virtual watchdog timer to their guest that cause a
1644           user define Control Program command to be executed after a
1645           timeout.
1646           LPAR provides a very similar interface. This driver handles
1647           both.
1648 
1649           To compile this driver as a module, choose M here. The module
1650           will be called diag288_wdt.
1651 
1652 # SUPERH (sh + sh64) Architecture
1653 
1654 config SH_WDT
1655         tristate "SuperH Watchdog"
1656         depends on SUPERH && (CPU_SH3 || CPU_SH4)
1657         select WATCHDOG_CORE
1658         help
1659           This driver adds watchdog support for the integrated watchdog in the
1660           SuperH processors. If you have one of these processors and wish
1661           to have watchdog support enabled, say Y, otherwise say N.
1662 
1663           As a side note, saying Y here will automatically boost HZ to 1000
1664           so that the timer has a chance to clear the overflow counter. On
1665           slower systems (such as the SH-2 and SH-3) this will likely yield
1666           some performance issues. As such, the WDT should be avoided here
1667           unless it is absolutely necessary.
1668 
1669           To compile this driver as a module, choose M here: the
1670           module will be called shwdt.
1671 
1672 # SPARC Architecture
1673 
1674 # SPARC64 Architecture
1675 
1676 config WATCHDOG_CP1XXX
1677         tristate "CP1XXX Hardware Watchdog support"
1678         depends on SPARC64 && PCI
1679         ---help---
1680           This is the driver for the hardware watchdog timers present on
1681           Sun Microsystems CompactPCI models CP1400 and CP1500.
1682 
1683           To compile this driver as a module, choose M here: the
1684           module will be called cpwatchdog.
1685 
1686           If you do not have a CompactPCI model CP1400 or CP1500, or
1687           another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1688           you should say N to this option.
1689 
1690 config WATCHDOG_RIO
1691         tristate "RIO Hardware Watchdog support"
1692         depends on SPARC64 && PCI
1693         help
1694           Say Y here to support the hardware watchdog capability on Sun RIO
1695           machines.  The watchdog timeout period is normally one minute but
1696           can be changed with a boot-time parameter.
1697 
1698 config WATCHDOG_SUN4V
1699         tristate "Sun4v Watchdog support"
1700         select WATCHDOG_CORE
1701         depends on SPARC64
1702         help
1703           Say Y here to support the hypervisor watchdog capability embedded
1704           in the SPARC sun4v architecture.
1705 
1706           To compile this driver as a module, choose M here. The module will
1707           be called sun4v_wdt.
1708 
1709 # XTENSA Architecture
1710 
1711 # Xen Architecture
1712 
1713 config XEN_WDT
1714         tristate "Xen Watchdog support"
1715         depends on XEN
1716         help
1717           Say Y here to support the hypervisor watchdog capability provided
1718           by Xen 4.0 and newer.  The watchdog timeout period is normally one
1719           minute but can be changed with a boot-time parameter.
1720 
1721 config UML_WATCHDOG
1722         tristate "UML watchdog"
1723         depends on UML
1724 
1725 #
1726 # ISA-based Watchdog Cards
1727 #
1728 
1729 comment "ISA-based Watchdog Cards"
1730         depends on ISA
1731 
1732 config PCWATCHDOG
1733         tristate "Berkshire Products ISA-PC Watchdog"
1734         depends on ISA
1735         ---help---
1736           This is the driver for the Berkshire Products ISA-PC Watchdog card.
1737           This card simply watches your kernel to make sure it doesn't freeze,
1738           and if it does, it reboots your computer after a certain amount of
1739           time. This driver is like the WDT501 driver but for different
1740           hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1741           watchdog cards can be ordered from <http://www.berkprod.com/>.
1742 
1743           To compile this driver as a module, choose M here: the
1744           module will be called pcwd.
1745 
1746           Most people will say N.
1747 
1748 config MIXCOMWD
1749         tristate "Mixcom Watchdog"
1750         depends on ISA
1751         ---help---
1752           This is a driver for the Mixcom hardware watchdog cards.  This
1753           watchdog simply watches your kernel to make sure it doesn't freeze,
1754           and if it does, it reboots your computer after a certain amount of
1755           time.
1756 
1757           To compile this driver as a module, choose M here: the
1758           module will be called mixcomwd.
1759 
1760           Most people will say N.
1761 
1762 config WDT
1763         tristate "WDT Watchdog timer"
1764         depends on ISA
1765         ---help---
1766           If you have a WDT500P or WDT501P watchdog board, say Y here,
1767           otherwise N. It is not possible to probe for this board, which means
1768           that you have to inform the kernel about the IO port and IRQ that
1769           is needed (you can do this via the io and irq parameters)
1770 
1771           To compile this driver as a module, choose M here: the
1772           module will be called wdt.
1773 
1774 #
1775 # PCI-based Watchdog Cards
1776 #
1777 
1778 comment "PCI-based Watchdog Cards"
1779         depends on PCI
1780 
1781 config PCIPCWATCHDOG
1782         tristate "Berkshire Products PCI-PC Watchdog"
1783         depends on PCI
1784         ---help---
1785           This is the driver for the Berkshire Products PCI-PC Watchdog card.
1786           This card simply watches your kernel to make sure it doesn't freeze,
1787           and if it does, it reboots your computer after a certain amount of
1788           time. The card can also monitor the internal temperature of the PC.
1789           More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1790 
1791           To compile this driver as a module, choose M here: the
1792           module will be called pcwd_pci.
1793 
1794           Most people will say N.
1795 
1796 config WDTPCI
1797         tristate "PCI-WDT500/501 Watchdog timer"
1798         depends on PCI
1799         ---help---
1800           If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1801 
1802           If you have a PCI-WDT501 watchdog board then you can enable the
1803           temperature sensor by setting the type parameter to 501.
1804 
1805           If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1806           can do this via the tachometer parameter. Only do this if you have a
1807           fan tachometer actually set up.
1808 
1809           To compile this driver as a module, choose M here: the
1810           module will be called wdt_pci.
1811 
1812 #
1813 # USB-based Watchdog Cards
1814 #
1815 
1816 comment "USB-based Watchdog Cards"
1817         depends on USB
1818 
1819 config USBPCWATCHDOG
1820         tristate "Berkshire Products USB-PC Watchdog"
1821         depends on USB
1822         ---help---
1823           This is the driver for the Berkshire Products USB-PC Watchdog card.
1824           This card simply watches your kernel to make sure it doesn't freeze,
1825           and if it does, it reboots your computer after a certain amount of
1826           time. The card can also monitor the internal temperature of the PC.
1827           More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1828 
1829           To compile this driver as a module, choose M here: the
1830           module will be called pcwd_usb.
1831 
1832           Most people will say N.
1833 
1834 endif # WATCHDOG

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