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1#
2# Watchdog device configuration
3#
4
5menuconfig WATCHDOG
6 bool "Watchdog Timer Support"
7 ---help---
8 If you say Y here (and to one of the following options) and create a
9 character special file /dev/watchdog with major number 10 and minor
10 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
11 subsequently opening the file and then failing to write to it for
12 longer than 1 minute will result in rebooting the machine. This
13 could be useful for a networked machine that needs to come back
14 on-line as fast as possible after a lock-up. There's both a watchdog
15 implementation entirely in software (which can sometimes fail to
16 reboot the machine) and a driver for hardware watchdog boards, which
17 are more robust and can also keep track of the temperature inside
18 your computer. For details, read
19 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
20
21 The watchdog is usually used together with the watchdog daemon
22 which is available from
23 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
24 also monitor NFS connections and can reboot the machine when the process
25 table is full.
26
27 If unsure, say N.
28
29if WATCHDOG
30
31config WATCHDOG_CORE
32 bool "WatchDog Timer Driver Core"
33 ---help---
34 Say Y here if you want to use the new watchdog timer driver core.
35 This driver provides a framework for all watchdog timer drivers
36 and gives them the /dev/watchdog interface (and later also the
37 sysfs interface).
38
39config WATCHDOG_NOWAYOUT
40 bool "Disable watchdog shutdown on close"
41 help
42 The default watchdog behaviour (which you get if you say N here) is
43 to stop the timer if the process managing it closes the file
44 /dev/watchdog. It's always remotely possible that this process might
45 get killed. If you say Y here, the watchdog cannot be stopped once
46 it has been started.
47
48#
49# General Watchdog drivers
50#
51
52comment "Watchdog Device Drivers"
53
54# Architecture Independent
55
56config SOFT_WATCHDOG
57 tristate "Software watchdog"
58 help
59 A software monitoring watchdog. This will fail to reboot your system
60 from some situations that the hardware watchdog will recover
61 from. Equally it's a lot cheaper to install.
62
63 To compile this driver as a module, choose M here: the
64 module will be called softdog.
65
66config WM831X_WATCHDOG
67 tristate "WM831x watchdog"
68 depends on MFD_WM831X
69 help
70 Support for the watchdog in the WM831x AudioPlus PMICs. When
71 the watchdog triggers the system will be reset.
72
73config WM8350_WATCHDOG
74 tristate "WM8350 watchdog"
75 depends on MFD_WM8350
76 help
77 Support for the watchdog in the WM8350 AudioPlus PMIC. When
78 the watchdog triggers the system will be reset.
79
80# ALPHA Architecture
81
82# ARM Architecture
83
84config ARM_SP805_WATCHDOG
85 tristate "ARM SP805 Watchdog"
86 depends on ARM_AMBA
87 help
88 ARM Primecell SP805 Watchdog timer. This will reboot your system when
89 the timeout is reached.
90
91config AT91RM9200_WATCHDOG
92 tristate "AT91RM9200 watchdog"
93 depends on ARCH_AT91RM9200
94 help
95 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
96 system when the timeout is reached.
97
98config AT91SAM9X_WATCHDOG
99 tristate "AT91SAM9X / AT91CAP9 watchdog"
100 depends on ARCH_AT91 && !ARCH_AT91RM9200
101 help
102 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
103 reboot your system when the timeout is reached.
104
105config 21285_WATCHDOG
106 tristate "DC21285 watchdog"
107 depends on FOOTBRIDGE
108 help
109 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
110 here if you wish to use this. Alternatively say M to compile the
111 driver as a module, which will be called wdt285.
112
113 This driver does not work on all machines. In particular, early CATS
114 boards have hardware problems that will cause the machine to simply
115 lock up if the watchdog fires.
116
117 "If in doubt, leave it out" - say N.
118
119config 977_WATCHDOG
120 tristate "NetWinder WB83C977 watchdog"
121 depends on FOOTBRIDGE && ARCH_NETWINDER
122 help
123 Say Y here to include support for the WB977 watchdog included in
124 NetWinder machines. Alternatively say M to compile the driver as
125 a module, which will be called wdt977.
126
127 Not sure? It's safe to say N.
128
129config IXP2000_WATCHDOG
130 tristate "IXP2000 Watchdog"
131 depends on ARCH_IXP2000
132 help
133 Say Y here if to include support for the watchdog timer
134 in the Intel IXP2000(2400, 2800, 2850) network processors.
135 This driver can be built as a module by choosing M. The module
136 will be called ixp2000_wdt.
137
138 Say N if you are unsure.
139
140config IXP4XX_WATCHDOG
141 tristate "IXP4xx Watchdog"
142 depends on ARCH_IXP4XX
143 help
144 Say Y here if to include support for the watchdog timer
145 in the Intel IXP4xx network processors. This driver can
146 be built as a module by choosing M. The module will
147 be called ixp4xx_wdt.
148
149 Note: The internal IXP4xx watchdog does a soft CPU reset
150 which doesn't reset any peripherals. There are circumstances
151 where the watchdog will fail to reset the board correctly
152 (e.g., if the boot ROM is in an unreadable state).
153
154 Say N if you are unsure.
155
156config KS8695_WATCHDOG
157 tristate "KS8695 watchdog"
158 depends on ARCH_KS8695
159 help
160 Watchdog timer embedded into KS8695 processor. This will reboot your
161 system when the timeout is reached.
162
163config HAVE_S3C2410_WATCHDOG
164 bool
165 help
166 This will include watchdog timer support for Samsung SoCs. If
167 you want to include watchdog support for any machine, kindly
168 select this in the respective mach-XXXX/Kconfig file.
169
170config S3C2410_WATCHDOG
171 tristate "S3C2410 Watchdog"
172 depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG
173 help
174 Watchdog timer block in the Samsung SoCs. This will reboot
175 the system when the timer expires with the watchdog enabled.
176
177 The driver is limited by the speed of the system's PCLK
178 signal, so with reasonably fast systems (PCLK around 50-66MHz)
179 then watchdog intervals of over approximately 20seconds are
180 unavailable.
181
182 The driver can be built as a module by choosing M, and will
183 be called s3c2410_wdt
184
185config SA1100_WATCHDOG
186 tristate "SA1100/PXA2xx watchdog"
187 depends on ARCH_SA1100 || ARCH_PXA
188 help
189 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
190 reboot your system when timeout is reached.
191
192 NOTE: once enabled, this timer cannot be disabled.
193
194 To compile this driver as a module, choose M here: the
195 module will be called sa1100_wdt.
196
197config DW_WATCHDOG
198 tristate "Synopsys DesignWare watchdog"
199 depends on ARM && HAVE_CLK
200 help
201 Say Y here if to include support for the Synopsys DesignWare
202 watchdog timer found in many ARM chips.
203 To compile this driver as a module, choose M here: the
204 module will be called dw_wdt.
205
206config MPCORE_WATCHDOG
207 tristate "MPcore watchdog"
208 depends on HAVE_ARM_TWD
209 help
210 Watchdog timer embedded into the MPcore system.
211
212 To compile this driver as a module, choose M here: the
213 module will be called mpcore_wdt.
214
215config EP93XX_WATCHDOG
216 tristate "EP93xx Watchdog"
217 depends on ARCH_EP93XX
218 help
219 Say Y here if to include support for the watchdog timer
220 embedded in the Cirrus Logic EP93xx family of devices.
221
222 To compile this driver as a module, choose M here: the
223 module will be called ep93xx_wdt.
224
225config OMAP_WATCHDOG
226 tristate "OMAP Watchdog"
227 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
228 help
229 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
230 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
231
232config PNX4008_WATCHDOG
233 tristate "PNX4008 and LPC32XX Watchdog"
234 depends on ARCH_PNX4008 || ARCH_LPC32XX
235 help
236 Say Y here if to include support for the watchdog timer
237 in the PNX4008 or LPC32XX processor.
238 This driver can be built as a module by choosing M. The module
239 will be called pnx4008_wdt.
240
241 Say N if you are unsure.
242
243config IOP_WATCHDOG
244 tristate "IOP Watchdog"
245 depends on PLAT_IOP
246 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
247 help
248 Say Y here if to include support for the watchdog timer
249 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
250 be built as a module by choosing M. The module will
251 be called iop_wdt.
252
253 Note: The IOP13XX watchdog does an Internal Bus Reset which will
254 affect both cores and the peripherals of the IOP. The ATU-X
255 and/or ATUe configuration registers will remain intact, but if
256 operating as an Root Complex and/or Central Resource, the PCI-X
257 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
258
259config DAVINCI_WATCHDOG
260 tristate "DaVinci watchdog"
261 depends on ARCH_DAVINCI
262 help
263 Say Y here if to include support for the watchdog timer
264 in the DaVinci DM644x/DM646x processors.
265 To compile this driver as a module, choose M here: the
266 module will be called davinci_wdt.
267
268 NOTE: once enabled, this timer cannot be disabled.
269 Say N if you are unsure.
270
271config ORION_WATCHDOG
272 tristate "Orion watchdog"
273 depends on ARCH_ORION5X || ARCH_KIRKWOOD
274 help
275 Say Y here if to include support for the watchdog timer
276 in the Marvell Orion5x and Kirkwood ARM SoCs.
277 To compile this driver as a module, choose M here: the
278 module will be called orion_wdt.
279
280config COH901327_WATCHDOG
281 bool "ST-Ericsson COH 901 327 watchdog"
282 depends on ARCH_U300
283 default y if MACH_U300
284 help
285 Say Y here to include Watchdog timer support for the
286 watchdog embedded into the ST-Ericsson U300 series platforms.
287 This watchdog is used to reset the system and thus cannot be
288 compiled as a module.
289
290config TWL4030_WATCHDOG
291 tristate "TWL4030 Watchdog"
292 depends on TWL4030_CORE
293 help
294 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
295 watchdog timer support for TWL4030 chips.
296
297config STMP3XXX_WATCHDOG
298 tristate "Freescale STMP3XXX watchdog"
299 depends on ARCH_STMP3XXX
300 help
301 Say Y here if to include support for the watchdog timer
302 for the Sigmatel STMP37XX/378X SoC.
303 To compile this driver as a module, choose M here: the
304 module will be called stmp3xxx_wdt.
305
306config NUC900_WATCHDOG
307 tristate "Nuvoton NUC900 watchdog"
308 depends on ARCH_W90X900
309 help
310 Say Y here if to include support for the watchdog timer
311 for the Nuvoton NUC900 series SoCs.
312 To compile this driver as a module, choose M here: the
313 module will be called nuc900_wdt.
314
315config ADX_WATCHDOG
316 tristate "Avionic Design Xanthos watchdog"
317 depends on ARCH_PXA_ADX
318 help
319 Say Y here if you want support for the watchdog timer on Avionic
320 Design Xanthos boards.
321
322config TS72XX_WATCHDOG
323 tristate "TS-72XX SBC Watchdog"
324 depends on MACH_TS72XX
325 help
326 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
327 watchdog timer implemented in a external CPLD chip. Say Y here
328 if you want to support for the watchdog timer on TS-72XX boards.
329
330 To compile this driver as a module, choose M here: the
331 module will be called ts72xx_wdt.
332
333config MAX63XX_WATCHDOG
334 tristate "Max63xx watchdog"
335 depends on ARM && HAS_IOMEM
336 help
337 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
338
339config IMX2_WDT
340 tristate "IMX2+ Watchdog"
341 depends on IMX_HAVE_PLATFORM_IMX2_WDT
342 help
343 This is the driver for the hardware watchdog
344 on the Freescale IMX2 and later processors.
345 If you have one of these processors and wish to have
346 watchdog support enabled, say Y, otherwise say N.
347
348 To compile this driver as a module, choose M here: the
349 module will be called imx2_wdt.
350
351# AVR32 Architecture
352
353config AT32AP700X_WDT
354 tristate "AT32AP700x watchdog"
355 depends on CPU_AT32AP700X
356 help
357 Watchdog timer embedded into AT32AP700x devices. This will reboot
358 your system when the timeout is reached.
359
360# BLACKFIN Architecture
361
362config BFIN_WDT
363 tristate "Blackfin On-Chip Watchdog Timer"
364 depends on BLACKFIN
365 ---help---
366 If you say yes here you will get support for the Blackfin On-Chip
367 Watchdog Timer. If you have one of these processors and wish to
368 have watchdog support enabled, say Y, otherwise say N.
369
370 To compile this driver as a module, choose M here: the
371 module will be called bfin_wdt.
372
373# CRIS Architecture
374
375# FRV Architecture
376
377# H8300 Architecture
378
379# X86 (i386 + ia64 + x86_64) Architecture
380
381config ACQUIRE_WDT
382 tristate "Acquire SBC Watchdog Timer"
383 depends on X86
384 ---help---
385 This is the driver for the hardware watchdog on Single Board
386 Computers produced by Acquire Inc (and others). This watchdog
387 simply watches your kernel to make sure it doesn't freeze, and if
388 it does, it reboots your computer after a certain amount of time.
389
390 To compile this driver as a module, choose M here: the
391 module will be called acquirewdt.
392
393 Most people will say N.
394
395config ADVANTECH_WDT
396 tristate "Advantech SBC Watchdog Timer"
397 depends on X86
398 help
399 If you are configuring a Linux kernel for the Advantech single-board
400 computer, say `Y' here to support its built-in watchdog timer
401 feature. More information can be found at
402 <http://www.advantech.com.tw/products/>
403
404config ALIM1535_WDT
405 tristate "ALi M1535 PMU Watchdog Timer"
406 depends on X86 && PCI
407 ---help---
408 This is the driver for the hardware watchdog on the ALi M1535 PMU.
409
410 To compile this driver as a module, choose M here: the
411 module will be called alim1535_wdt.
412
413 Most people will say N.
414
415config ALIM7101_WDT
416 tristate "ALi M7101 PMU Computer Watchdog"
417 depends on PCI
418 help
419 This is the driver for the hardware watchdog on the ALi M7101 PMU
420 as used in the x86 Cobalt servers and also found in some
421 SPARC Netra servers too.
422
423 To compile this driver as a module, choose M here: the
424 module will be called alim7101_wdt.
425
426 Most people will say N.
427
428config F71808E_WDT
429 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
430 depends on X86 && EXPERIMENTAL
431 help
432 This is the driver for the hardware watchdog on the Fintek
433 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
434
435 You can compile this driver directly into the kernel, or use
436 it as a module. The module will be called f71808e_wdt.
437
438config SP5100_TCO
439 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
440 depends on X86 && PCI
441 ---help---
442 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
443 (Total Cost of Ownership) timer is a watchdog timer that will reboot
444 the machine after its expiration. The expiration time can be
445 configured with the "heartbeat" parameter.
446
447 To compile this driver as a module, choose M here: the
448 module will be called sp5100_tco.
449
450config GEODE_WDT
451 tristate "AMD Geode CS5535/CS5536 Watchdog"
452 depends on CS5535_MFGPT
453 help
454 This driver enables a watchdog capability built into the
455 CS5535/CS5536 companion chips for the AMD Geode GX and LX
456 processors. This watchdog watches your kernel to make sure
457 it doesn't freeze, and if it does, it reboots your computer after
458 a certain amount of time.
459
460 You can compile this driver directly into the kernel, or use
461 it as a module. The module will be called geodewdt.
462
463config SC520_WDT
464 tristate "AMD Elan SC520 processor Watchdog"
465 depends on X86
466 help
467 This is the driver for the hardware watchdog built in to the
468 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
469 This watchdog simply watches your kernel to make sure it doesn't
470 freeze, and if it does, it reboots your computer after a certain
471 amount of time.
472
473 You can compile this driver directly into the kernel, or use
474 it as a module. The module will be called sc520_wdt.
475
476config SBC_FITPC2_WATCHDOG
477 tristate "Compulab SBC-FITPC2 watchdog"
478 depends on X86
479 ---help---
480 This is the driver for the built-in watchdog timer on the fit-PC2,
481 fit-PC2i, CM-iAM single-board computers made by Compulab.
482
483 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
484 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
485
486 Entering BIOS setup temporary disables watchdog operation regardless to current state,
487 so system will not be restarted while user in BIOS setup.
488
489 Once watchdog was enabled the system will be restarted every
490 "Watchdog Timer Value" period, so to prevent it user can restart or
491 disable the watchdog.
492
493 To compile this driver as a module, choose M here: the
494 module will be called sbc_fitpc2_wdt.
495
496 Most people will say N.
497
498config EUROTECH_WDT
499 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
500 depends on X86
501 help
502 Enable support for the watchdog timer on the Eurotech CPU-1220 and
503 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
504 information are at <http://www.eurotech.it/>.
505
506config IB700_WDT
507 tristate "IB700 SBC Watchdog Timer"
508 depends on X86
509 ---help---
510 This is the driver for the hardware watchdog on the IB700 Single
511 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
512 simply watches your kernel to make sure it doesn't freeze, and if
513 it does, it reboots your computer after a certain amount of time.
514
515 This driver is like the WDT501 driver but for slightly different hardware.
516
517 To compile this driver as a module, choose M here: the
518 module will be called ib700wdt.
519
520 Most people will say N.
521
522config IBMASR
523 tristate "IBM Automatic Server Restart"
524 depends on X86
525 help
526 This is the driver for the IBM Automatic Server Restart watchdog
527 timer built-in into some eServer xSeries machines.
528
529 To compile this driver as a module, choose M here: the
530 module will be called ibmasr.
531
532config WAFER_WDT
533 tristate "ICP Single Board Computer Watchdog Timer"
534 depends on X86
535 help
536 This is a driver for the hardware watchdog on the ICP Single
537 Board Computer. This driver is working on (at least) the following
538 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
539
540 To compile this driver as a module, choose M here: the
541 module will be called wafer5823wdt.
542
543config I6300ESB_WDT
544 tristate "Intel 6300ESB Timer/Watchdog"
545 depends on X86 && PCI
546 ---help---
547 Hardware driver for the watchdog timer built into the Intel
548 6300ESB controller hub.
549
550 To compile this driver as a module, choose M here: the
551 module will be called i6300esb.
552
553config INTEL_SCU_WATCHDOG
554 bool "Intel SCU Watchdog for Mobile Platforms"
555 depends on X86_MRST
556 ---help---
557 Hardware driver for the watchdog time built into the Intel SCU
558 for Intel Mobile Platforms.
559
560 To compile this driver as a module, choose M here.
561
562config ITCO_WDT
563 tristate "Intel TCO Timer/Watchdog"
564 depends on (X86 || IA64) && PCI
565 ---help---
566 Hardware driver for the intel TCO timer based watchdog devices.
567 These drivers are included in the Intel 82801 I/O Controller
568 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
569 controller hub.
570
571 The TCO (Total Cost of Ownership) timer is a watchdog timer
572 that will reboot the machine after its second expiration. The
573 expiration time can be configured with the "heartbeat" parameter.
574
575 On some motherboards the driver may fail to reset the chipset's
576 NO_REBOOT flag which prevents the watchdog from rebooting the
577 machine. If this is the case you will get a kernel message like
578 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
579
580 To compile this driver as a module, choose M here: the
581 module will be called iTCO_wdt.
582
583config ITCO_VENDOR_SUPPORT
584 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
585 depends on ITCO_WDT
586 ---help---
587 Add vendor specific support to the intel TCO timer based watchdog
588 devices. At this moment we only have additional support for some
589 SuperMicro Inc. motherboards.
590
591config IT8712F_WDT
592 tristate "IT8712F (Smart Guardian) Watchdog Timer"
593 depends on X86
594 ---help---
595 This is the driver for the built-in watchdog timer on the IT8712F
596 Super I/0 chipset used on many motherboards.
597
598 If the driver does not work, then make sure that the game port in
599 the BIOS is enabled.
600
601 To compile this driver as a module, choose M here: the
602 module will be called it8712f_wdt.
603
604config IT87_WDT
605 tristate "IT87 Watchdog Timer"
606 depends on X86 && EXPERIMENTAL
607 ---help---
608 This is the driver for the hardware watchdog on the ITE IT8702,
609 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 Super I/O chips.
610 This watchdog simply watches your kernel to make sure it doesn't
611 freeze, and if it does, it reboots your computer after a certain
612 amount of time.
613
614 To compile this driver as a module, choose M here: the module will
615 be called it87_wdt.
616
617config HP_WATCHDOG
618 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
619 depends on X86 && PCI
620 help
621 A software monitoring watchdog and NMI sourcing driver. This driver
622 will detect lockups and provide a stack trace. This is a driver that
623 will only load on an HP ProLiant system with a minimum of iLO2 support.
624 To compile this driver as a module, choose M here: the module will be
625 called hpwdt.
626
627config HPWDT_NMI_DECODING
628 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
629 depends on HP_WATCHDOG
630 default y
631 help
632 When an NMI occurs this feature will make the necessary BIOS calls to
633 log the cause of the NMI.
634
635config SC1200_WDT
636 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
637 depends on X86
638 help
639 This is a driver for National Semiconductor PC87307/PC97307 hardware
640 watchdog cards as found on the SC1200. This watchdog is mainly used
641 for power management purposes and can be used to power down the device
642 during inactivity periods (includes interrupt activity monitoring).
643
644 To compile this driver as a module, choose M here: the
645 module will be called sc1200wdt.
646
647 Most people will say N.
648
649config SCx200_WDT
650 tristate "National Semiconductor SCx200 Watchdog"
651 depends on SCx200 && PCI
652 help
653 Enable the built-in watchdog timer support on the National
654 Semiconductor SCx200 processors.
655
656 If compiled as a module, it will be called scx200_wdt.
657
658config PC87413_WDT
659 tristate "NS PC87413 watchdog"
660 depends on X86
661 ---help---
662 This is the driver for the hardware watchdog on the PC87413 chipset
663 This watchdog simply watches your kernel to make sure it doesn't
664 freeze, and if it does, it reboots your computer after a certain
665 amount of time.
666
667 To compile this driver as a module, choose M here: the
668 module will be called pc87413_wdt.
669
670 Most people will say N.
671
672config NV_TCO
673 tristate "nVidia TCO Timer/Watchdog"
674 depends on X86 && PCI
675 ---help---
676 Hardware driver for the TCO timer built into the nVidia Hub family
677 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
678 watchdog timer that will reboot the machine after its second
679 expiration. The expiration time can be configured with the
680 "heartbeat" parameter.
681
682 On some motherboards the driver may fail to reset the chipset's
683 NO_REBOOT flag which prevents the watchdog from rebooting the
684 machine. If this is the case you will get a kernel message like
685 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
686
687 To compile this driver as a module, choose M here: the
688 module will be called nv_tco.
689
690config RDC321X_WDT
691 tristate "RDC R-321x SoC watchdog"
692 depends on X86_RDC321X
693 help
694 This is the driver for the built in hardware watchdog
695 in the RDC R-321x SoC.
696
697 To compile this driver as a module, choose M here: the
698 module will be called rdc321x_wdt.
699
700config 60XX_WDT
701 tristate "SBC-60XX Watchdog Timer"
702 depends on X86
703 help
704 This driver can be used with the watchdog timer found on some
705 single board computers, namely the 6010 PII based computer.
706 It may well work with other cards. It reads port 0x443 to enable
707 and re-set the watchdog timer, and reads port 0x45 to disable
708 the watchdog. If you have a card that behave in similar ways,
709 you can probably make this driver work with your card as well.
710
711 You can compile this driver directly into the kernel, or use
712 it as a module. The module will be called sbc60xxwdt.
713
714config SBC8360_WDT
715 tristate "SBC8360 Watchdog Timer"
716 depends on X86
717 ---help---
718
719 This is the driver for the hardware watchdog on the SBC8360 Single
720 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
721
722 To compile this driver as a module, choose M here: the
723 module will be called sbc8360.
724
725 Most people will say N.
726
727config SBC7240_WDT
728 tristate "SBC Nano 7240 Watchdog Timer"
729 depends on X86_32
730 ---help---
731 This is the driver for the hardware watchdog found on the IEI
732 single board computers EPIC Nano 7240 (and likely others). This
733 watchdog simply watches your kernel to make sure it doesn't freeze,
734 and if it does, it reboots your computer after a certain amount of
735 time.
736
737 To compile this driver as a module, choose M here: the
738 module will be called sbc7240_wdt.
739
740config CPU5_WDT
741 tristate "SMA CPU5 Watchdog"
742 depends on X86
743 ---help---
744 TBD.
745 To compile this driver as a module, choose M here: the
746 module will be called cpu5wdt.
747
748config SMSC_SCH311X_WDT
749 tristate "SMSC SCH311X Watchdog Timer"
750 depends on X86
751 ---help---
752 This is the driver for the hardware watchdog timer on the
753 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
754 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
755 serial ports).
756
757 To compile this driver as a module, choose M here: the
758 module will be called sch311x_wdt.
759
760config SMSC37B787_WDT
761 tristate "Winbond SMsC37B787 Watchdog Timer"
762 depends on X86
763 ---help---
764 This is the driver for the hardware watchdog component on the
765 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
766 from Vision Systems and maybe others.
767
768 This watchdog simply watches your kernel to make sure it doesn't
769 freeze, and if it does, it reboots your computer after a certain
770 amount of time.
771
772 Usually a userspace daemon will notify the kernel WDT driver that
773 userspace is still alive, at regular intervals.
774
775 To compile this driver as a module, choose M here: the
776 module will be called smsc37b787_wdt.
777
778 Most people will say N.
779
780config W83627HF_WDT
781 tristate "W83627HF/W83627DHG Watchdog Timer"
782 depends on X86
783 ---help---
784 This is the driver for the hardware watchdog on the W83627HF chipset
785 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
786 (and likely others). The driver also supports the W83627DHG chip.
787 This watchdog simply watches your kernel to make sure it doesn't
788 freeze, and if it does, it reboots your computer after a certain
789 amount of time.
790
791 To compile this driver as a module, choose M here: the
792 module will be called w83627hf_wdt.
793
794 Most people will say N.
795
796config W83697HF_WDT
797 tristate "W83697HF/W83697HG Watchdog Timer"
798 depends on X86
799 ---help---
800 This is the driver for the hardware watchdog on the W83697HF/HG
801 chipset as used in Dedibox/VIA motherboards (and likely others).
802 This watchdog simply watches your kernel to make sure it doesn't
803 freeze, and if it does, it reboots your computer after a certain
804 amount of time.
805
806 To compile this driver as a module, choose M here: the
807 module will be called w83697hf_wdt.
808
809 Most people will say N.
810
811config W83697UG_WDT
812 tristate "W83697UG/W83697UF Watchdog Timer"
813 depends on X86
814 ---help---
815 This is the driver for the hardware watchdog on the W83697UG/UF
816 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
817 This watchdog simply watches your kernel to make sure it doesn't
818 freeze, and if it does, it reboots your computer after a certain
819 amount of time.
820
821 To compile this driver as a module, choose M here: the
822 module will be called w83697ug_wdt.
823
824 Most people will say N.
825
826config W83877F_WDT
827 tristate "W83877F (EMACS) Watchdog Timer"
828 depends on X86
829 ---help---
830 This is the driver for the hardware watchdog on the W83877F chipset
831 as used in EMACS PC-104 motherboards (and likely others). This
832 watchdog simply watches your kernel to make sure it doesn't freeze,
833 and if it does, it reboots your computer after a certain amount of
834 time.
835
836 To compile this driver as a module, choose M here: the
837 module will be called w83877f_wdt.
838
839 Most people will say N.
840
841config W83977F_WDT
842 tristate "W83977F (PCM-5335) Watchdog Timer"
843 depends on X86
844 ---help---
845 This is the driver for the hardware watchdog on the W83977F I/O chip
846 as used in AAEON's PCM-5335 SBC (and likely others). This
847 watchdog simply watches your kernel to make sure it doesn't freeze,
848 and if it does, it reboots your computer after a certain amount of
849 time.
850
851 To compile this driver as a module, choose M here: the
852 module will be called w83977f_wdt.
853
854config MACHZ_WDT
855 tristate "ZF MachZ Watchdog"
856 depends on X86
857 ---help---
858 If you are using a ZF Micro MachZ processor, say Y here, otherwise
859 N. This is the driver for the watchdog timer built-in on that
860 processor using ZF-Logic interface. This watchdog simply watches
861 your kernel to make sure it doesn't freeze, and if it does, it
862 reboots your computer after a certain amount of time.
863
864 To compile this driver as a module, choose M here: the
865 module will be called machzwd.
866
867config SBC_EPX_C3_WATCHDOG
868 tristate "Winsystems SBC EPX-C3 watchdog"
869 depends on X86
870 ---help---
871 This is the driver for the built-in watchdog timer on the EPX-C3
872 Single-board computer made by Winsystems, Inc.
873
874 *Note*: This hardware watchdog is not probeable and thus there
875 is no way to know if writing to its IO address will corrupt
876 your system or have any real effect. The only way to be sure
877 that this driver does what you want is to make sure you
878 are running it on an EPX-C3 from Winsystems with the watchdog
879 timer at IO address 0x1ee and 0x1ef. It will write to both those
880 IO ports. Basically, the assumption is made that if you compile
881 this driver into your kernel and/or load it as a module, that you
882 know what you are doing and that you are in fact running on an
883 EPX-C3 board!
884
885 To compile this driver as a module, choose M here: the
886 module will be called sbc_epx_c3.
887
888# M32R Architecture
889
890# M68K Architecture
891
892config M54xx_WATCHDOG
893 tristate "MCF54xx watchdog support"
894 depends on M548x
895 help
896 To compile this driver as a module, choose M here: the
897 module will be called m54xx_wdt.
898
899# MicroBlaze Architecture
900
901config XILINX_WATCHDOG
902 tristate "Xilinx Watchdog timer"
903 depends on MICROBLAZE
904 ---help---
905 Watchdog driver for the xps_timebase_wdt ip core.
906
907 IMPORTANT: The xps_timebase_wdt parent must have the property
908 "clock-frequency" at device tree.
909
910 To compile this driver as a module, choose M here: the
911 module will be called of_xilinx_wdt.
912
913# MIPS Architecture
914
915config ATH79_WDT
916 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
917 depends on ATH79
918 help
919 Hardware driver for the built-in watchdog timer on the Atheros
920 AR71XX/AR724X/AR913X SoCs.
921
922config BCM47XX_WDT
923 tristate "Broadcom BCM47xx Watchdog Timer"
924 depends on BCM47XX
925 help
926 Hardware driver for the Broadcom BCM47xx Watchog Timer.
927
928config RC32434_WDT
929 tristate "IDT RC32434 SoC Watchdog Timer"
930 depends on MIKROTIK_RB532
931 help
932 Hardware driver for the IDT RC32434 SoC built-in
933 watchdog timer.
934
935 To compile this driver as a module, choose M here: the
936 module will be called rc32434_wdt.
937
938config INDYDOG
939 tristate "Indy/I2 Hardware Watchdog"
940 depends on SGI_HAS_INDYDOG
941 help
942 Hardware driver for the Indy's/I2's watchdog. This is a
943 watchdog timer that will reboot the machine after a 60 second
944 timer expired and no process has written to /dev/watchdog during
945 that time.
946
947config JZ4740_WDT
948 tristate "Ingenic jz4740 SoC hardware watchdog"
949 depends on MACH_JZ4740
950 help
951 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
952
953config WDT_MTX1
954 tristate "MTX-1 Hardware Watchdog"
955 depends on MIPS_MTX1
956 help
957 Hardware driver for the MTX-1 boards. This is a watchdog timer that
958 will reboot the machine after a 100 seconds timer expired.
959
960config PNX833X_WDT
961 tristate "PNX833x Hardware Watchdog"
962 depends on SOC_PNX8335
963 help
964 Hardware driver for the PNX833x's watchdog. This is a
965 watchdog timer that will reboot the machine after a programmable
966 timer has expired and no process has written to /dev/watchdog during
967 that time.
968
969config SIBYTE_WDOG
970 tristate "Sibyte SoC hardware watchdog"
971 depends on CPU_SB1
972 help
973 Watchdog driver for the built in watchdog hardware in Sibyte
974 SoC processors. There are apparently two watchdog timers
975 on such processors; this driver supports only the first one,
976 because currently Linux only supports exporting one watchdog
977 to userspace.
978
979 To compile this driver as a loadable module, choose M here.
980 The module will be called sb_wdog.
981
982config AR7_WDT
983 tristate "TI AR7 Watchdog Timer"
984 depends on AR7
985 help
986 Hardware driver for the TI AR7 Watchdog Timer.
987
988config TXX9_WDT
989 tristate "Toshiba TXx9 Watchdog Timer"
990 depends on CPU_TX39XX || CPU_TX49XX
991 help
992 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
993
994config OCTEON_WDT
995 tristate "Cavium OCTEON SOC family Watchdog Timer"
996 depends on CPU_CAVIUM_OCTEON
997 default y
998 select EXPORT_UASM if OCTEON_WDT = m
999 help
1000 Hardware driver for OCTEON's on chip watchdog timer.
1001 Enables the watchdog for all cores running Linux. It
1002 installs a NMI handler and pokes the watchdog based on an
1003 interrupt. On first expiration of the watchdog, the
1004 interrupt handler pokes it. The second expiration causes an
1005 NMI that prints a message. The third expiration causes a
1006 global soft reset.
1007
1008 When userspace has /dev/watchdog open, no poking is done
1009 from the first interrupt, it is then only poked when the
1010 device is written.
1011
1012config BCM63XX_WDT
1013 tristate "Broadcom BCM63xx hardware watchdog"
1014 depends on BCM63XX
1015 help
1016 Watchdog driver for the built in watchdog hardware in Broadcom
1017 BCM63xx SoC.
1018
1019 To compile this driver as a loadable module, choose M here.
1020 The module will be called bcm63xx_wdt.
1021
1022config LANTIQ_WDT
1023 tristate "Lantiq SoC watchdog"
1024 depends on LANTIQ
1025 help
1026 Hardware driver for the Lantiq SoC Watchdog Timer.
1027
1028# PARISC Architecture
1029
1030# POWERPC Architecture
1031
1032config GEF_WDT
1033 tristate "GE Watchdog Timer"
1034 depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
1035 ---help---
1036 Watchdog timer found in a number of GE single board computers.
1037
1038config MPC5200_WDT
1039 bool "MPC52xx Watchdog Timer"
1040 depends on PPC_MPC52xx
1041 help
1042 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1043
1044config 8xxx_WDT
1045 tristate "MPC8xxx Platform Watchdog Timer"
1046 depends on PPC_8xx || PPC_83xx || PPC_86xx
1047 help
1048 This driver is for a SoC level watchdog that exists on some
1049 Freescale PowerPC processors. So far this driver supports:
1050 - MPC8xx watchdogs
1051 - MPC83xx watchdogs
1052 - MPC86xx watchdogs
1053
1054 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1055
1056config MV64X60_WDT
1057 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1058 depends on MV64X60
1059
1060config PIKA_WDT
1061 tristate "PIKA FPGA Watchdog"
1062 depends on WARP
1063 default y
1064 help
1065 This enables the watchdog in the PIKA FPGA. Currently used on
1066 the Warp platform.
1067
1068config BOOKE_WDT
1069 tristate "PowerPC Book-E Watchdog Timer"
1070 depends on BOOKE || 4xx
1071 ---help---
1072 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1073 MPC85xx SOCs and the IBM PowerPC 440.
1074
1075 Please see Documentation/watchdog/watchdog-api.txt for
1076 more information.
1077
1078config BOOKE_WDT_DEFAULT_TIMEOUT
1079 int "PowerPC Book-E Watchdog Timer Default Timeout"
1080 depends on BOOKE_WDT
1081 default 38 if FSL_BOOKE
1082 range 0 63 if FSL_BOOKE
1083 default 3 if !FSL_BOOKE
1084 range 0 3 if !FSL_BOOKE
1085 help
1086 Select the default watchdog timer period to be used by the PowerPC
1087 Book-E watchdog driver. A watchdog "event" occurs when the bit
1088 position represented by this number transitions from zero to one.
1089
1090 For Freescale Book-E processors, this is a number between 0 and 63.
1091 For other Book-E processors, this is a number between 0 and 3.
1092
1093 The value can be overidden by the wdt_period command-line parameter.
1094
1095# PPC64 Architecture
1096
1097config WATCHDOG_RTAS
1098 tristate "RTAS watchdog"
1099 depends on PPC_RTAS
1100 help
1101 This driver adds watchdog support for the RTAS watchdog.
1102
1103 To compile this driver as a module, choose M here. The module
1104 will be called wdrtas.
1105
1106# S390 Architecture
1107
1108config ZVM_WATCHDOG
1109 tristate "z/VM Watchdog Timer"
1110 depends on S390
1111 help
1112 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1113 provide a virtual watchdog timer to their guest that cause a
1114 user define Control Program command to be executed after a
1115 timeout.
1116
1117 To compile this driver as a module, choose M here. The module
1118 will be called vmwatchdog.
1119
1120# SUPERH (sh + sh64) Architecture
1121
1122config SH_WDT
1123 tristate "SuperH Watchdog"
1124 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1125 help
1126 This driver adds watchdog support for the integrated watchdog in the
1127 SuperH processors. If you have one of these processors and wish
1128 to have watchdog support enabled, say Y, otherwise say N.
1129
1130 As a side note, saying Y here will automatically boost HZ to 1000
1131 so that the timer has a chance to clear the overflow counter. On
1132 slower systems (such as the SH-2 and SH-3) this will likely yield
1133 some performance issues. As such, the WDT should be avoided here
1134 unless it is absolutely necessary.
1135
1136 To compile this driver as a module, choose M here: the
1137 module will be called shwdt.
1138
1139# SPARC Architecture
1140
1141# SPARC64 Architecture
1142
1143config WATCHDOG_CP1XXX
1144 tristate "CP1XXX Hardware Watchdog support"
1145 depends on SPARC64 && PCI
1146 ---help---
1147 This is the driver for the hardware watchdog timers present on
1148 Sun Microsystems CompactPCI models CP1400 and CP1500.
1149
1150 To compile this driver as a module, choose M here: the
1151 module will be called cpwatchdog.
1152
1153 If you do not have a CompactPCI model CP1400 or CP1500, or
1154 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1155 you should say N to this option.
1156
1157config WATCHDOG_RIO
1158 tristate "RIO Hardware Watchdog support"
1159 depends on SPARC64 && PCI
1160 help
1161 Say Y here to support the hardware watchdog capability on Sun RIO
1162 machines. The watchdog timeout period is normally one minute but
1163 can be changed with a boot-time parameter.
1164
1165# XTENSA Architecture
1166
1167# Xen Architecture
1168
1169config XEN_WDT
1170 tristate "Xen Watchdog support"
1171 depends on XEN
1172 help
1173 Say Y here to support the hypervisor watchdog capability provided
1174 by Xen 4.0 and newer. The watchdog timeout period is normally one
1175 minute but can be changed with a boot-time parameter.
1176
1177#
1178# ISA-based Watchdog Cards
1179#
1180
1181comment "ISA-based Watchdog Cards"
1182 depends on ISA
1183
1184config PCWATCHDOG
1185 tristate "Berkshire Products ISA-PC Watchdog"
1186 depends on ISA
1187 ---help---
1188 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1189 This card simply watches your kernel to make sure it doesn't freeze,
1190 and if it does, it reboots your computer after a certain amount of
1191 time. This driver is like the WDT501 driver but for different
1192 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1193 watchdog cards can be ordered from <http://www.berkprod.com/>.
1194
1195 To compile this driver as a module, choose M here: the
1196 module will be called pcwd.
1197
1198 Most people will say N.
1199
1200config MIXCOMWD
1201 tristate "Mixcom Watchdog"
1202 depends on ISA
1203 ---help---
1204 This is a driver for the Mixcom hardware watchdog cards. This
1205 watchdog simply watches your kernel to make sure it doesn't freeze,
1206 and if it does, it reboots your computer after a certain amount of
1207 time.
1208
1209 To compile this driver as a module, choose M here: the
1210 module will be called mixcomwd.
1211
1212 Most people will say N.
1213
1214config WDT
1215 tristate "WDT Watchdog timer"
1216 depends on ISA
1217 ---help---
1218 If you have a WDT500P or WDT501P watchdog board, say Y here,
1219 otherwise N. It is not possible to probe for this board, which means
1220 that you have to inform the kernel about the IO port and IRQ that
1221 is needed (you can do this via the io and irq parameters)
1222
1223 To compile this driver as a module, choose M here: the
1224 module will be called wdt.
1225
1226#
1227# PCI-based Watchdog Cards
1228#
1229
1230comment "PCI-based Watchdog Cards"
1231 depends on PCI
1232
1233config PCIPCWATCHDOG
1234 tristate "Berkshire Products PCI-PC Watchdog"
1235 depends on PCI
1236 ---help---
1237 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1238 This card simply watches your kernel to make sure it doesn't freeze,
1239 and if it does, it reboots your computer after a certain amount of
1240 time. The card can also monitor the internal temperature of the PC.
1241 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1242
1243 To compile this driver as a module, choose M here: the
1244 module will be called pcwd_pci.
1245
1246 Most people will say N.
1247
1248config WDTPCI
1249 tristate "PCI-WDT500/501 Watchdog timer"
1250 depends on PCI
1251 ---help---
1252 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1253
1254 If you have a PCI-WDT501 watchdog board then you can enable the
1255 temperature sensor by setting the type parameter to 501.
1256
1257 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1258 can do this via the tachometer parameter. Only do this if you have a
1259 fan tachometer actually set up.
1260
1261 To compile this driver as a module, choose M here: the
1262 module will be called wdt_pci.
1263
1264#
1265# USB-based Watchdog Cards
1266#
1267
1268comment "USB-based Watchdog Cards"
1269 depends on USB
1270
1271config USBPCWATCHDOG
1272 tristate "Berkshire Products USB-PC Watchdog"
1273 depends on USB
1274 ---help---
1275 This is the driver for the Berkshire Products USB-PC Watchdog card.
1276 This card simply watches your kernel to make sure it doesn't freeze,
1277 and if it does, it reboots your computer after a certain amount of
1278 time. The card can also monitor the internal temperature of the PC.
1279 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1280
1281 To compile this driver as a module, choose M here: the
1282 module will be called pcwd_usb.
1283
1284 Most people will say N.
1285
1286endif # WATCHDOG
1
2#
3# Watchdog device configuration
4#
5
6menuconfig 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
30if WATCHDOG
31
32config 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
40config 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
49config WATCHDOG_SYSFS
50 bool "Read different watchdog information through sysfs"
51 default n
52 help
53 Say Y here if you want to enable watchdog device status read through
54 sysfs attributes.
55
56#
57# General Watchdog drivers
58#
59
60comment "Watchdog Device Drivers"
61
62# Architecture Independent
63
64config SOFT_WATCHDOG
65 tristate "Software watchdog"
66 select WATCHDOG_CORE
67 help
68 A software monitoring watchdog. This will fail to reboot your system
69 from some situations that the hardware watchdog will recover
70 from. Equally it's a lot cheaper to install.
71
72 To compile this driver as a module, choose M here: the
73 module will be called softdog.
74
75config DA9052_WATCHDOG
76 tristate "Dialog DA9052 Watchdog"
77 depends on PMIC_DA9052
78 select WATCHDOG_CORE
79 help
80 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
81 cause system reset.
82
83 Say Y here to include support for the DA9052 watchdog.
84 Alternatively say M to compile the driver as a module,
85 which will be called da9052_wdt.
86
87config DA9055_WATCHDOG
88 tristate "Dialog Semiconductor DA9055 Watchdog"
89 depends on MFD_DA9055
90 select WATCHDOG_CORE
91 help
92 If you say yes here you get support for watchdog on the Dialog
93 Semiconductor DA9055 PMIC.
94
95 This driver can also be built as a module. If so, the module
96 will be called da9055_wdt.
97
98config DA9063_WATCHDOG
99 tristate "Dialog DA9063 Watchdog"
100 depends on MFD_DA9063
101 select WATCHDOG_CORE
102 help
103 Support for the watchdog in the DA9063 PMIC.
104
105 This driver can be built as a module. The module name is da9063_wdt.
106
107config DA9062_WATCHDOG
108 tristate "Dialog DA9062 Watchdog"
109 depends on MFD_DA9062
110 select WATCHDOG_CORE
111 help
112 Support for the watchdog in the DA9062 PMIC.
113
114 This driver can be built as a module. The module name is da9062_wdt.
115
116config GPIO_WATCHDOG
117 tristate "Watchdog device controlled through GPIO-line"
118 depends on OF_GPIO
119 select WATCHDOG_CORE
120 help
121 If you say yes here you get support for watchdog device
122 controlled through GPIO-line.
123
124config GPIO_WATCHDOG_ARCH_INITCALL
125 bool "Register the watchdog as early as possible"
126 depends on GPIO_WATCHDOG=y
127 help
128 In some situations, the default initcall level (module_init)
129 in not early enough in the boot process to avoid the watchdog
130 to be triggered.
131 If you say yes here, the initcall level would be raised to
132 arch_initcall.
133 If in doubt, say N.
134
135config MENF21BMC_WATCHDOG
136 tristate "MEN 14F021P00 BMC Watchdog"
137 depends on MFD_MENF21BMC
138 select WATCHDOG_CORE
139 help
140 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
141
142 This driver can also be built as a module. If so the module
143 will be called menf21bmc_wdt.
144
145config TANGOX_WATCHDOG
146 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
147 select WATCHDOG_CORE
148 depends on ARCH_TANGO || COMPILE_TEST
149 depends on HAS_IOMEM
150 help
151 Support for the watchdog in Sigma Designs SMP86xx (tango3)
152 and SMP87xx (tango4) family chips.
153
154 This driver can be built as a module. The module name is tangox_wdt.
155
156config WM831X_WATCHDOG
157 tristate "WM831x watchdog"
158 depends on MFD_WM831X
159 select WATCHDOG_CORE
160 help
161 Support for the watchdog in the WM831x AudioPlus PMICs. When
162 the watchdog triggers the system will be reset.
163
164config WM8350_WATCHDOG
165 tristate "WM8350 watchdog"
166 depends on MFD_WM8350
167 select WATCHDOG_CORE
168 help
169 Support for the watchdog in the WM8350 AudioPlus PMIC. When
170 the watchdog triggers the system will be reset.
171
172config XILINX_WATCHDOG
173 tristate "Xilinx Watchdog timer"
174 depends on HAS_IOMEM
175 select WATCHDOG_CORE
176 help
177 Watchdog driver for the xps_timebase_wdt ip core.
178
179 To compile this driver as a module, choose M here: the
180 module will be called of_xilinx_wdt.
181
182config ZIIRAVE_WATCHDOG
183 tristate "Zodiac RAVE Watchdog Timer"
184 depends on I2C
185 select WATCHDOG_CORE
186 help
187 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
188 Processor.
189
190 To compile this driver as a module, choose M here: the
191 module will be called ziirave_wdt.
192
193# ALPHA Architecture
194
195# ARM Architecture
196
197config ARM_SP805_WATCHDOG
198 tristate "ARM SP805 Watchdog"
199 depends on (ARM || ARM64) && ARM_AMBA
200 select WATCHDOG_CORE
201 help
202 ARM Primecell SP805 Watchdog timer. This will reboot your system when
203 the timeout is reached.
204
205config ARM_SBSA_WATCHDOG
206 tristate "ARM SBSA Generic Watchdog"
207 depends on ARM64
208 depends on ARM_ARCH_TIMER
209 select WATCHDOG_CORE
210 help
211 ARM SBSA Generic Watchdog has two stage timeouts:
212 the first signal (WS0) is for alerting the system by interrupt,
213 the second one (WS1) is a real hardware reset.
214 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
215
216 This driver can operate ARM SBSA Generic Watchdog as a single stage
217 or a two stages watchdog, it depends on the module parameter "action".
218
219 Note: the maximum timeout in the two stages mode is half of that in
220 the single stage mode.
221
222 To compile this driver as module, choose M here: The module
223 will be called sbsa_gwdt.
224
225config ASM9260_WATCHDOG
226 tristate "Alphascale ASM9260 watchdog"
227 depends on MACH_ASM9260
228 depends on OF
229 select WATCHDOG_CORE
230 select RESET_CONTROLLER
231 help
232 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
233 system when the timeout is reached.
234
235config AT91RM9200_WATCHDOG
236 tristate "AT91RM9200 watchdog"
237 depends on SOC_AT91RM9200 && MFD_SYSCON
238 help
239 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
240 system when the timeout is reached.
241
242config AT91SAM9X_WATCHDOG
243 tristate "AT91SAM9X / AT91CAP9 watchdog"
244 depends on ARCH_AT91
245 select WATCHDOG_CORE
246 help
247 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
248 reboot your system when the timeout is reached.
249
250config SAMA5D4_WATCHDOG
251 tristate "Atmel SAMA5D4 Watchdog Timer"
252 depends on ARCH_AT91
253 select WATCHDOG_CORE
254 help
255 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
256 Its Watchdog Timer Mode Register can be written more than once.
257 This will reboot your system when the timeout is reached.
258
259config CADENCE_WATCHDOG
260 tristate "Cadence Watchdog Timer"
261 depends on HAS_IOMEM
262 select WATCHDOG_CORE
263 help
264 Say Y here if you want to include support for the watchdog
265 timer in the Xilinx Zynq.
266
267config 21285_WATCHDOG
268 tristate "DC21285 watchdog"
269 depends on FOOTBRIDGE
270 help
271 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
272 here if you wish to use this. Alternatively say M to compile the
273 driver as a module, which will be called wdt285.
274
275 This driver does not work on all machines. In particular, early CATS
276 boards have hardware problems that will cause the machine to simply
277 lock up if the watchdog fires.
278
279 "If in doubt, leave it out" - say N.
280
281config 977_WATCHDOG
282 tristate "NetWinder WB83C977 watchdog"
283 depends on FOOTBRIDGE && ARCH_NETWINDER
284 help
285 Say Y here to include support for the WB977 watchdog included in
286 NetWinder machines. Alternatively say M to compile the driver as
287 a module, which will be called wdt977.
288
289 Not sure? It's safe to say N.
290
291config IXP4XX_WATCHDOG
292 tristate "IXP4xx Watchdog"
293 depends on ARCH_IXP4XX
294 help
295 Say Y here if to include support for the watchdog timer
296 in the Intel IXP4xx network processors. This driver can
297 be built as a module by choosing M. The module will
298 be called ixp4xx_wdt.
299
300 Note: The internal IXP4xx watchdog does a soft CPU reset
301 which doesn't reset any peripherals. There are circumstances
302 where the watchdog will fail to reset the board correctly
303 (e.g., if the boot ROM is in an unreadable state).
304
305 Say N if you are unsure.
306
307config KS8695_WATCHDOG
308 tristate "KS8695 watchdog"
309 depends on ARCH_KS8695
310 help
311 Watchdog timer embedded into KS8695 processor. This will reboot your
312 system when the timeout is reached.
313
314config HAVE_S3C2410_WATCHDOG
315 bool
316 help
317 This will include watchdog timer support for Samsung SoCs. If
318 you want to include watchdog support for any machine, kindly
319 select this in the respective mach-XXXX/Kconfig file.
320
321config S3C2410_WATCHDOG
322 tristate "S3C2410 Watchdog"
323 depends on HAVE_S3C2410_WATCHDOG
324 select WATCHDOG_CORE
325 select MFD_SYSCON if ARCH_EXYNOS5
326 help
327 Watchdog timer block in the Samsung SoCs. This will reboot
328 the system when the timer expires with the watchdog enabled.
329
330 The driver is limited by the speed of the system's PCLK
331 signal, so with reasonably fast systems (PCLK around 50-66MHz)
332 then watchdog intervals of over approximately 20seconds are
333 unavailable.
334
335 The driver can be built as a module by choosing M, and will
336 be called s3c2410_wdt
337
338config SA1100_WATCHDOG
339 tristate "SA1100/PXA2xx watchdog"
340 depends on ARCH_SA1100 || ARCH_PXA
341 help
342 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
343 reboot your system when timeout is reached.
344
345 NOTE: once enabled, this timer cannot be disabled.
346
347 To compile this driver as a module, choose M here: the
348 module will be called sa1100_wdt.
349
350config DW_WATCHDOG
351 tristate "Synopsys DesignWare watchdog"
352 depends on HAS_IOMEM
353 select WATCHDOG_CORE
354 help
355 Say Y here if to include support for the Synopsys DesignWare
356 watchdog timer found in many chips.
357 To compile this driver as a module, choose M here: the
358 module will be called dw_wdt.
359
360config EP93XX_WATCHDOG
361 tristate "EP93xx Watchdog"
362 depends on ARCH_EP93XX
363 select WATCHDOG_CORE
364 help
365 Say Y here if to include support for the watchdog timer
366 embedded in the Cirrus Logic EP93xx family of devices.
367
368 To compile this driver as a module, choose M here: the
369 module will be called ep93xx_wdt.
370
371config OMAP_WATCHDOG
372 tristate "OMAP Watchdog"
373 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
374 select WATCHDOG_CORE
375 help
376 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
377 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
378
379config PNX4008_WATCHDOG
380 tristate "LPC32XX Watchdog"
381 depends on ARCH_LPC32XX
382 select WATCHDOG_CORE
383 help
384 Say Y here if to include support for the watchdog timer
385 in the LPC32XX processor.
386 This driver can be built as a module by choosing M. The module
387 will be called pnx4008_wdt.
388
389 Say N if you are unsure.
390
391config IOP_WATCHDOG
392 tristate "IOP Watchdog"
393 depends on ARCH_IOP13XX
394 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
395 help
396 Say Y here if to include support for the watchdog timer
397 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
398 be built as a module by choosing M. The module will
399 be called iop_wdt.
400
401 Note: The IOP13XX watchdog does an Internal Bus Reset which will
402 affect both cores and the peripherals of the IOP. The ATU-X
403 and/or ATUe configuration registers will remain intact, but if
404 operating as an Root Complex and/or Central Resource, the PCI-X
405 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
406
407config DAVINCI_WATCHDOG
408 tristate "DaVinci watchdog"
409 depends on ARCH_DAVINCI || ARCH_KEYSTONE
410 select WATCHDOG_CORE
411 help
412 Say Y here if to include support for the watchdog timer
413 in the DaVinci DM644x/DM646x or Keystone processors.
414 To compile this driver as a module, choose M here: the
415 module will be called davinci_wdt.
416
417 NOTE: once enabled, this timer cannot be disabled.
418 Say N if you are unsure.
419
420config ORION_WATCHDOG
421 tristate "Orion watchdog"
422 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
423 depends on ARM
424 select WATCHDOG_CORE
425 help
426 Say Y here if to include support for the watchdog timer
427 in the Marvell Orion5x and Kirkwood ARM SoCs.
428 To compile this driver as a module, choose M here: the
429 module will be called orion_wdt.
430
431config RN5T618_WATCHDOG
432 tristate "Ricoh RN5T618 watchdog"
433 depends on MFD_RN5T618
434 select WATCHDOG_CORE
435 help
436 If you say yes here you get support for watchdog on the Ricoh
437 RN5T618 PMIC.
438
439 This driver can also be built as a module. If so, the module
440 will be called rn5t618_wdt.
441
442config SUNXI_WATCHDOG
443 tristate "Allwinner SoCs watchdog support"
444 depends on ARCH_SUNXI
445 select WATCHDOG_CORE
446 help
447 Say Y here to include support for the watchdog timer
448 in Allwinner SoCs.
449 To compile this driver as a module, choose M here: the
450 module will be called sunxi_wdt.
451
452config COH901327_WATCHDOG
453 bool "ST-Ericsson COH 901 327 watchdog"
454 depends on ARCH_U300
455 default y if MACH_U300
456 select WATCHDOG_CORE
457 help
458 Say Y here to include Watchdog timer support for the
459 watchdog embedded into the ST-Ericsson U300 series platforms.
460 This watchdog is used to reset the system and thus cannot be
461 compiled as a module.
462
463config TWL4030_WATCHDOG
464 tristate "TWL4030 Watchdog"
465 depends on TWL4030_CORE
466 select WATCHDOG_CORE
467 help
468 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
469 watchdog timer support for TWL4030 chips.
470
471config STMP3XXX_RTC_WATCHDOG
472 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
473 depends on RTC_DRV_STMP
474 select WATCHDOG_CORE
475 help
476 Say Y here to include support for the watchdog timer inside
477 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
478 To compile this driver as a module, choose M here: the
479 module will be called stmp3xxx_rtc_wdt.
480
481config NUC900_WATCHDOG
482 tristate "Nuvoton NUC900 watchdog"
483 depends on ARCH_W90X900
484 help
485 Say Y here if to include support for the watchdog timer
486 for the Nuvoton NUC900 series SoCs.
487 To compile this driver as a module, choose M here: the
488 module will be called nuc900_wdt.
489
490config TS4800_WATCHDOG
491 tristate "TS-4800 Watchdog"
492 depends on HAS_IOMEM && OF
493 depends on SOC_IMX51 || COMPILE_TEST
494 select WATCHDOG_CORE
495 select MFD_SYSCON
496 help
497 Technologic Systems TS-4800 has watchdog timer implemented in
498 an external FPGA. Say Y here if you want to support for the
499 watchdog timer on TS-4800 board.
500
501config TS72XX_WATCHDOG
502 tristate "TS-72XX SBC Watchdog"
503 depends on MACH_TS72XX
504 help
505 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
506 watchdog timer implemented in a external CPLD chip. Say Y here
507 if you want to support for the watchdog timer on TS-72XX boards.
508
509 To compile this driver as a module, choose M here: the
510 module will be called ts72xx_wdt.
511
512config MAX63XX_WATCHDOG
513 tristate "Max63xx watchdog"
514 depends on HAS_IOMEM
515 select WATCHDOG_CORE
516 help
517 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
518
519config IMX2_WDT
520 tristate "IMX2+ Watchdog"
521 depends on ARCH_MXC || ARCH_LAYERSCAPE
522 select REGMAP_MMIO
523 select WATCHDOG_CORE
524 help
525 This is the driver for the hardware watchdog
526 on the Freescale IMX2 and later processors.
527 If you have one of these processors and wish to have
528 watchdog support enabled, say Y, otherwise say N.
529
530 To compile this driver as a module, choose M here: the
531 module will be called imx2_wdt.
532
533config UX500_WATCHDOG
534 tristate "ST-Ericsson Ux500 watchdog"
535 depends on MFD_DB8500_PRCMU
536 select WATCHDOG_CORE
537 default y
538 help
539 Say Y here to include Watchdog timer support for the watchdog
540 existing in the prcmu of ST-Ericsson Ux500 series platforms.
541
542 To compile this driver as a module, choose M here: the
543 module will be called ux500_wdt.
544
545config RETU_WATCHDOG
546 tristate "Retu watchdog"
547 depends on MFD_RETU
548 select WATCHDOG_CORE
549 help
550 Retu watchdog driver for Nokia Internet Tablets (770, N800,
551 N810). At least on N800 the watchdog cannot be disabled, so
552 this driver is essential and you should enable it.
553
554 To compile this driver as a module, choose M here: the
555 module will be called retu_wdt.
556
557config MOXART_WDT
558 tristate "MOXART watchdog"
559 depends on ARCH_MOXART
560 help
561 Say Y here to include Watchdog timer support for the watchdog
562 existing on the MOXA ART SoC series platforms.
563
564 To compile this driver as a module, choose M here: the
565 module will be called moxart_wdt.
566
567config SIRFSOC_WATCHDOG
568 tristate "SiRFSOC watchdog"
569 depends on ARCH_SIRF
570 select WATCHDOG_CORE
571 default y
572 help
573 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
574 the watchdog triggers the system will be reset.
575
576config ST_LPC_WATCHDOG
577 tristate "STMicroelectronics LPC Watchdog"
578 depends on ARCH_STI
579 depends on OF
580 select WATCHDOG_CORE
581 help
582 Say Y here to include STMicroelectronics Low Power Controller
583 (LPC) based Watchdog timer support.
584
585 To compile this driver as a module, choose M here: the
586 module will be called st_lpc_wdt.
587
588config TEGRA_WATCHDOG
589 tristate "Tegra watchdog"
590 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
591 select WATCHDOG_CORE
592 help
593 Say Y here to include support for the watchdog timer
594 embedded in NVIDIA Tegra SoCs.
595
596 To compile this driver as a module, choose M here: the
597 module will be called tegra_wdt.
598
599config QCOM_WDT
600 tristate "QCOM watchdog"
601 depends on HAS_IOMEM
602 depends on ARCH_QCOM
603 select WATCHDOG_CORE
604 help
605 Say Y here to include Watchdog timer support for the watchdog found
606 on QCOM chipsets. Currently supported targets are the MSM8960,
607 APQ8064, and IPQ8064.
608
609 To compile this driver as a module, choose M here: the
610 module will be called qcom_wdt.
611
612config MESON_WATCHDOG
613 tristate "Amlogic Meson SoCs watchdog support"
614 depends on ARCH_MESON
615 select WATCHDOG_CORE
616 help
617 Say Y here to include support for the watchdog timer
618 in Amlogic Meson SoCs.
619 To compile this driver as a module, choose M here: the
620 module will be called meson_wdt.
621
622config MEDIATEK_WATCHDOG
623 tristate "Mediatek SoCs watchdog support"
624 depends on ARCH_MEDIATEK
625 select WATCHDOG_CORE
626 help
627 Say Y here to include support for the watchdog timer
628 in Mediatek SoCs.
629 To compile this driver as a module, choose M here: the
630 module will be called mtk_wdt.
631
632config DIGICOLOR_WATCHDOG
633 tristate "Conexant Digicolor SoCs watchdog support"
634 depends on ARCH_DIGICOLOR
635 select WATCHDOG_CORE
636 help
637 Say Y here to include support for the watchdog timer
638 in Conexant Digicolor SoCs.
639 To compile this driver as a module, choose M here: the
640 module will be called digicolor_wdt.
641
642config LPC18XX_WATCHDOG
643 tristate "LPC18xx/43xx Watchdog"
644 depends on ARCH_LPC18XX || COMPILE_TEST
645 depends on HAS_IOMEM
646 select WATCHDOG_CORE
647 help
648 Say Y here if to include support for the watchdog timer
649 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
650 processors.
651 To compile this driver as a module, choose M here: the
652 module will be called lpc18xx_wdt.
653
654config ATLAS7_WATCHDOG
655 tristate "CSRatlas7 watchdog"
656 depends on ARCH_ATLAS7
657 help
658 Say Y here to include Watchdog timer support for the watchdog
659 existing on the CSRatlas7 series platforms.
660
661 To compile this driver as a module, choose M here: the
662 module will be called atlas7_wdt.
663
664# AVR32 Architecture
665
666config AT32AP700X_WDT
667 tristate "AT32AP700x watchdog"
668 depends on CPU_AT32AP700X
669 help
670 Watchdog timer embedded into AT32AP700x devices. This will reboot
671 your system when the timeout is reached.
672
673# BLACKFIN Architecture
674
675config BFIN_WDT
676 tristate "Blackfin On-Chip Watchdog Timer"
677 depends on BLACKFIN
678 ---help---
679 If you say yes here you will get support for the Blackfin On-Chip
680 Watchdog Timer. If you have one of these processors and wish to
681 have watchdog support enabled, say Y, otherwise say N.
682
683 To compile this driver as a module, choose M here: the
684 module will be called bfin_wdt.
685
686# CRIS Architecture
687
688# FRV Architecture
689
690# X86 (i386 + ia64 + x86_64) Architecture
691
692config ACQUIRE_WDT
693 tristate "Acquire SBC Watchdog Timer"
694 depends on X86
695 ---help---
696 This is the driver for the hardware watchdog on Single Board
697 Computers produced by Acquire Inc (and others). This watchdog
698 simply watches your kernel to make sure it doesn't freeze, and if
699 it does, it reboots your computer after a certain amount of time.
700
701 To compile this driver as a module, choose M here: the
702 module will be called acquirewdt.
703
704 Most people will say N.
705
706config ADVANTECH_WDT
707 tristate "Advantech SBC Watchdog Timer"
708 depends on X86
709 help
710 If you are configuring a Linux kernel for the Advantech single-board
711 computer, say `Y' here to support its built-in watchdog timer
712 feature. More information can be found at
713 <http://www.advantech.com.tw/products/>
714
715config ALIM1535_WDT
716 tristate "ALi M1535 PMU Watchdog Timer"
717 depends on X86 && PCI
718 ---help---
719 This is the driver for the hardware watchdog on the ALi M1535 PMU.
720
721 To compile this driver as a module, choose M here: the
722 module will be called alim1535_wdt.
723
724 Most people will say N.
725
726config ALIM7101_WDT
727 tristate "ALi M7101 PMU Computer Watchdog"
728 depends on PCI
729 help
730 This is the driver for the hardware watchdog on the ALi M7101 PMU
731 as used in the x86 Cobalt servers and also found in some
732 SPARC Netra servers too.
733
734 To compile this driver as a module, choose M here: the
735 module will be called alim7101_wdt.
736
737 Most people will say N.
738
739config EBC_C384_WDT
740 tristate "WinSystems EBC-C384 Watchdog Timer"
741 depends on X86
742 select WATCHDOG_CORE
743 help
744 Enables watchdog timer support for the watchdog timer on the
745 WinSystems EBC-C384 motherboard. The timeout may be configured via
746 the timeout module parameter.
747
748config F71808E_WDT
749 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
750 depends on X86
751 help
752 This is the driver for the hardware watchdog on the Fintek
753 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
754
755 You can compile this driver directly into the kernel, or use
756 it as a module. The module will be called f71808e_wdt.
757
758config SP5100_TCO
759 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
760 depends on X86 && PCI
761 ---help---
762 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
763 (Total Cost of Ownership) timer is a watchdog timer that will reboot
764 the machine after its expiration. The expiration time can be
765 configured with the "heartbeat" parameter.
766
767 To compile this driver as a module, choose M here: the
768 module will be called sp5100_tco.
769
770config GEODE_WDT
771 tristate "AMD Geode CS5535/CS5536 Watchdog"
772 depends on CS5535_MFGPT
773 help
774 This driver enables a watchdog capability built into the
775 CS5535/CS5536 companion chips for the AMD Geode GX and LX
776 processors. This watchdog watches your kernel to make sure
777 it doesn't freeze, and if it does, it reboots your computer after
778 a certain amount of time.
779
780 You can compile this driver directly into the kernel, or use
781 it as a module. The module will be called geodewdt.
782
783config SC520_WDT
784 tristate "AMD Elan SC520 processor Watchdog"
785 depends on MELAN
786 help
787 This is the driver for the hardware watchdog built in to the
788 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
789 This watchdog simply watches your kernel to make sure it doesn't
790 freeze, and if it does, it reboots your computer after a certain
791 amount of time.
792
793 You can compile this driver directly into the kernel, or use
794 it as a module. The module will be called sc520_wdt.
795
796config SBC_FITPC2_WATCHDOG
797 tristate "Compulab SBC-FITPC2 watchdog"
798 depends on X86
799 ---help---
800 This is the driver for the built-in watchdog timer on the fit-PC2,
801 fit-PC2i, CM-iAM single-board computers made by Compulab.
802
803 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
804 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
805
806 Entering BIOS setup temporary disables watchdog operation regardless to current state,
807 so system will not be restarted while user in BIOS setup.
808
809 Once watchdog was enabled the system will be restarted every
810 "Watchdog Timer Value" period, so to prevent it user can restart or
811 disable the watchdog.
812
813 To compile this driver as a module, choose M here: the
814 module will be called sbc_fitpc2_wdt.
815
816 Most people will say N.
817
818config EUROTECH_WDT
819 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
820 depends on X86
821 help
822 Enable support for the watchdog timer on the Eurotech CPU-1220 and
823 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
824 information are at <http://www.eurotech.it/>.
825
826config IB700_WDT
827 tristate "IB700 SBC Watchdog Timer"
828 depends on X86
829 ---help---
830 This is the driver for the hardware watchdog on the IB700 Single
831 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
832 simply watches your kernel to make sure it doesn't freeze, and if
833 it does, it reboots your computer after a certain amount of time.
834
835 This driver is like the WDT501 driver but for slightly different hardware.
836
837 To compile this driver as a module, choose M here: the
838 module will be called ib700wdt.
839
840 Most people will say N.
841
842config IBMASR
843 tristate "IBM Automatic Server Restart"
844 depends on X86
845 help
846 This is the driver for the IBM Automatic Server Restart watchdog
847 timer built-in into some eServer xSeries machines.
848
849 To compile this driver as a module, choose M here: the
850 module will be called ibmasr.
851
852config WAFER_WDT
853 tristate "ICP Single Board Computer Watchdog Timer"
854 depends on X86
855 help
856 This is a driver for the hardware watchdog on the ICP Single
857 Board Computer. This driver is working on (at least) the following
858 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
859
860 To compile this driver as a module, choose M here: the
861 module will be called wafer5823wdt.
862
863config I6300ESB_WDT
864 tristate "Intel 6300ESB Timer/Watchdog"
865 depends on PCI
866 ---help---
867 Hardware driver for the watchdog timer built into the Intel
868 6300ESB controller hub.
869
870 To compile this driver as a module, choose M here: the
871 module will be called i6300esb.
872
873config IE6XX_WDT
874 tristate "Intel Atom E6xx Watchdog"
875 depends on X86 && PCI
876 select WATCHDOG_CORE
877 select MFD_CORE
878 select LPC_SCH
879 ---help---
880 Hardware driver for the watchdog timer built into the Intel
881 Atom E6XX (TunnelCreek) processor.
882
883 To compile this driver as a module, choose M here: the
884 module will be called ie6xx_wdt.
885
886config INTEL_SCU_WATCHDOG
887 bool "Intel SCU Watchdog for Mobile Platforms"
888 depends on X86_INTEL_MID
889 ---help---
890 Hardware driver for the watchdog time built into the Intel SCU
891 for Intel Mobile Platforms.
892
893 To compile this driver as a module, choose M here.
894
895config INTEL_MID_WATCHDOG
896 tristate "Intel MID Watchdog Timer"
897 depends on X86_INTEL_MID
898 select WATCHDOG_CORE
899 ---help---
900 Watchdog timer driver built into the Intel SCU for Intel MID
901 Platforms.
902
903 This driver currently supports only the watchdog evolution
904 implementation in SCU, available for Merrifield generation.
905
906 To compile this driver as a module, choose M here.
907
908config ITCO_WDT
909 tristate "Intel TCO Timer/Watchdog"
910 depends on (X86 || IA64) && PCI
911 select WATCHDOG_CORE
912 depends on I2C || I2C=n
913 select LPC_ICH if !EXPERT
914 select I2C_I801 if !EXPERT && I2C
915 ---help---
916 Hardware driver for the intel TCO timer based watchdog devices.
917 These drivers are included in the Intel 82801 I/O Controller
918 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
919 controller hub.
920
921 The TCO (Total Cost of Ownership) timer is a watchdog timer
922 that will reboot the machine after its second expiration. The
923 expiration time can be configured with the "heartbeat" parameter.
924
925 On some motherboards the driver may fail to reset the chipset's
926 NO_REBOOT flag which prevents the watchdog from rebooting the
927 machine. If this is the case you will get a kernel message like
928 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
929
930 To compile this driver as a module, choose M here: the
931 module will be called iTCO_wdt.
932
933config ITCO_VENDOR_SUPPORT
934 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
935 depends on ITCO_WDT
936 ---help---
937 Add vendor specific support to the intel TCO timer based watchdog
938 devices. At this moment we only have additional support for some
939 SuperMicro Inc. motherboards.
940
941config IT8712F_WDT
942 tristate "IT8712F (Smart Guardian) Watchdog Timer"
943 depends on X86
944 ---help---
945 This is the driver for the built-in watchdog timer on the IT8712F
946 Super I/0 chipset used on many motherboards.
947
948 If the driver does not work, then make sure that the game port in
949 the BIOS is enabled.
950
951 To compile this driver as a module, choose M here: the
952 module will be called it8712f_wdt.
953
954config IT87_WDT
955 tristate "IT87 Watchdog Timer"
956 depends on X86
957 ---help---
958 This is the driver for the hardware watchdog on the ITE IT8702,
959 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
960 Super I/O chips.
961
962 If the driver does not work, then make sure that the game port in
963 the BIOS is enabled.
964
965 This watchdog simply watches your kernel to make sure it doesn't
966 freeze, and if it does, it reboots your computer after a certain
967 amount of time.
968
969 To compile this driver as a module, choose M here: the module will
970 be called it87_wdt.
971
972config HP_WATCHDOG
973 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
974 depends on X86 && PCI
975 help
976 A software monitoring watchdog and NMI sourcing driver. This driver
977 will detect lockups and provide a stack trace. This is a driver that
978 will only load on an HP ProLiant system with a minimum of iLO2 support.
979 To compile this driver as a module, choose M here: the module will be
980 called hpwdt.
981
982config KEMPLD_WDT
983 tristate "Kontron COM Watchdog Timer"
984 depends on MFD_KEMPLD
985 select WATCHDOG_CORE
986 help
987 Support for the PLD watchdog on some Kontron ETX and COMexpress
988 (ETXexpress) modules
989
990 This driver can also be built as a module. If so, the module will be
991 called kempld_wdt.
992
993config HPWDT_NMI_DECODING
994 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
995 depends on HP_WATCHDOG
996 default y
997 help
998 When an NMI occurs this feature will make the necessary BIOS calls to
999 log the cause of the NMI.
1000
1001config SC1200_WDT
1002 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1003 depends on X86
1004 help
1005 This is a driver for National Semiconductor PC87307/PC97307 hardware
1006 watchdog cards as found on the SC1200. This watchdog is mainly used
1007 for power management purposes and can be used to power down the device
1008 during inactivity periods (includes interrupt activity monitoring).
1009
1010 To compile this driver as a module, choose M here: the
1011 module will be called sc1200wdt.
1012
1013 Most people will say N.
1014
1015config SCx200_WDT
1016 tristate "National Semiconductor SCx200 Watchdog"
1017 depends on SCx200 && PCI
1018 help
1019 Enable the built-in watchdog timer support on the National
1020 Semiconductor SCx200 processors.
1021
1022 If compiled as a module, it will be called scx200_wdt.
1023
1024config PC87413_WDT
1025 tristate "NS PC87413 watchdog"
1026 depends on X86
1027 ---help---
1028 This is the driver for the hardware watchdog on the PC87413 chipset
1029 This watchdog simply watches your kernel to make sure it doesn't
1030 freeze, and if it does, it reboots your computer after a certain
1031 amount of time.
1032
1033 To compile this driver as a module, choose M here: the
1034 module will be called pc87413_wdt.
1035
1036 Most people will say N.
1037
1038config NV_TCO
1039 tristate "nVidia TCO Timer/Watchdog"
1040 depends on X86 && PCI
1041 ---help---
1042 Hardware driver for the TCO timer built into the nVidia Hub family
1043 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1044 watchdog timer that will reboot the machine after its second
1045 expiration. The expiration time can be configured with the
1046 "heartbeat" parameter.
1047
1048 On some motherboards the driver may fail to reset the chipset's
1049 NO_REBOOT flag which prevents the watchdog from rebooting the
1050 machine. If this is the case you will get a kernel message like
1051 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1052
1053 To compile this driver as a module, choose M here: the
1054 module will be called nv_tco.
1055
1056config RDC321X_WDT
1057 tristate "RDC R-321x SoC watchdog"
1058 depends on X86_RDC321X
1059 help
1060 This is the driver for the built in hardware watchdog
1061 in the RDC R-321x SoC.
1062
1063 To compile this driver as a module, choose M here: the
1064 module will be called rdc321x_wdt.
1065
1066config 60XX_WDT
1067 tristate "SBC-60XX Watchdog Timer"
1068 depends on X86
1069 help
1070 This driver can be used with the watchdog timer found on some
1071 single board computers, namely the 6010 PII based computer.
1072 It may well work with other cards. It reads port 0x443 to enable
1073 and re-set the watchdog timer, and reads port 0x45 to disable
1074 the watchdog. If you have a card that behave in similar ways,
1075 you can probably make this driver work with your card as well.
1076
1077 You can compile this driver directly into the kernel, or use
1078 it as a module. The module will be called sbc60xxwdt.
1079
1080config SBC8360_WDT
1081 tristate "SBC8360 Watchdog Timer"
1082 depends on X86_32
1083 ---help---
1084
1085 This is the driver for the hardware watchdog on the SBC8360 Single
1086 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1087
1088 To compile this driver as a module, choose M here: the
1089 module will be called sbc8360.
1090
1091 Most people will say N.
1092
1093config SBC7240_WDT
1094 tristate "SBC Nano 7240 Watchdog Timer"
1095 depends on X86_32 && !UML
1096 ---help---
1097 This is the driver for the hardware watchdog found on the IEI
1098 single board computers EPIC Nano 7240 (and likely others). This
1099 watchdog simply watches your kernel to make sure it doesn't freeze,
1100 and if it does, it reboots your computer after a certain amount of
1101 time.
1102
1103 To compile this driver as a module, choose M here: the
1104 module will be called sbc7240_wdt.
1105
1106config CPU5_WDT
1107 tristate "SMA CPU5 Watchdog"
1108 depends on X86
1109 ---help---
1110 TBD.
1111 To compile this driver as a module, choose M here: the
1112 module will be called cpu5wdt.
1113
1114config SMSC_SCH311X_WDT
1115 tristate "SMSC SCH311X Watchdog Timer"
1116 depends on X86
1117 ---help---
1118 This is the driver for the hardware watchdog timer on the
1119 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1120 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1121 serial ports).
1122
1123 To compile this driver as a module, choose M here: the
1124 module will be called sch311x_wdt.
1125
1126config SMSC37B787_WDT
1127 tristate "Winbond SMsC37B787 Watchdog Timer"
1128 depends on X86
1129 ---help---
1130 This is the driver for the hardware watchdog component on the
1131 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1132 from Vision Systems and maybe others.
1133
1134 This watchdog simply watches your kernel to make sure it doesn't
1135 freeze, and if it does, it reboots your computer after a certain
1136 amount of time.
1137
1138 Usually a userspace daemon will notify the kernel WDT driver that
1139 userspace is still alive, at regular intervals.
1140
1141 To compile this driver as a module, choose M here: the
1142 module will be called smsc37b787_wdt.
1143
1144 Most people will say N.
1145
1146config VIA_WDT
1147 tristate "VIA Watchdog Timer"
1148 depends on X86 && PCI
1149 select WATCHDOG_CORE
1150 ---help---
1151 This is the driver for the hardware watchdog timer on VIA
1152 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1153
1154 To compile this driver as a module, choose M here; the module
1155 will be called via_wdt.
1156
1157 Most people will say N.
1158
1159config W83627HF_WDT
1160 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1161 depends on X86
1162 select WATCHDOG_CORE
1163 ---help---
1164 This is the driver for the hardware watchdog on the following
1165 Super I/O chips.
1166 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1167 W83637HF
1168 W83667HG/HG-B
1169 W83687THF
1170 W83697HF
1171 W83697UG
1172 NCT6775
1173 NCT6776
1174 NCT6779
1175 NCT6791
1176 NCT6792
1177 NCT6102D/04D/06D
1178
1179 This watchdog simply watches your kernel to make sure it doesn't
1180 freeze, and if it does, it reboots your computer after a certain
1181 amount of time.
1182
1183 To compile this driver as a module, choose M here: the
1184 module will be called w83627hf_wdt.
1185
1186 Most people will say N.
1187
1188config W83877F_WDT
1189 tristate "W83877F (EMACS) Watchdog Timer"
1190 depends on X86
1191 ---help---
1192 This is the driver for the hardware watchdog on the W83877F chipset
1193 as used in EMACS PC-104 motherboards (and likely others). This
1194 watchdog simply watches your kernel to make sure it doesn't freeze,
1195 and if it does, it reboots your computer after a certain amount of
1196 time.
1197
1198 To compile this driver as a module, choose M here: the
1199 module will be called w83877f_wdt.
1200
1201 Most people will say N.
1202
1203config W83977F_WDT
1204 tristate "W83977F (PCM-5335) Watchdog Timer"
1205 depends on X86
1206 ---help---
1207 This is the driver for the hardware watchdog on the W83977F I/O chip
1208 as used in AAEON's PCM-5335 SBC (and likely others). This
1209 watchdog simply watches your kernel to make sure it doesn't freeze,
1210 and if it does, it reboots your computer after a certain amount of
1211 time.
1212
1213 To compile this driver as a module, choose M here: the
1214 module will be called w83977f_wdt.
1215
1216config MACHZ_WDT
1217 tristate "ZF MachZ Watchdog"
1218 depends on X86
1219 ---help---
1220 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1221 N. This is the driver for the watchdog timer built-in on that
1222 processor using ZF-Logic interface. This watchdog simply watches
1223 your kernel to make sure it doesn't freeze, and if it does, it
1224 reboots your computer after a certain amount of time.
1225
1226 To compile this driver as a module, choose M here: the
1227 module will be called machzwd.
1228
1229config SBC_EPX_C3_WATCHDOG
1230 tristate "Winsystems SBC EPX-C3 watchdog"
1231 depends on X86
1232 ---help---
1233 This is the driver for the built-in watchdog timer on the EPX-C3
1234 Single-board computer made by Winsystems, Inc.
1235
1236 *Note*: This hardware watchdog is not probeable and thus there
1237 is no way to know if writing to its IO address will corrupt
1238 your system or have any real effect. The only way to be sure
1239 that this driver does what you want is to make sure you
1240 are running it on an EPX-C3 from Winsystems with the watchdog
1241 timer at IO address 0x1ee and 0x1ef. It will write to both those
1242 IO ports. Basically, the assumption is made that if you compile
1243 this driver into your kernel and/or load it as a module, that you
1244 know what you are doing and that you are in fact running on an
1245 EPX-C3 board!
1246
1247 To compile this driver as a module, choose M here: the
1248 module will be called sbc_epx_c3.
1249
1250config INTEL_MEI_WDT
1251 tristate "Intel MEI iAMT Watchdog"
1252 depends on INTEL_MEI && X86
1253 select WATCHDOG_CORE
1254 ---help---
1255 A device driver for the Intel MEI iAMT watchdog.
1256
1257 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1258 Whenever the OS hangs or crashes, iAMT will send an event
1259 to any subscriber to this event. The watchdog doesn't reset the
1260 the platform.
1261
1262 To compile this driver as a module, choose M here:
1263 the module will be called mei_wdt.
1264
1265config NI903X_WDT
1266 tristate "NI 903x/913x Watchdog"
1267 depends on X86 && ACPI
1268 select WATCHDOG_CORE
1269 ---help---
1270 This is the driver for the watchdog timer on the National Instruments
1271 903x/913x real-time controllers.
1272
1273 To compile this driver as a module, choose M here: the module will be
1274 called ni903x_wdt.
1275
1276# M32R Architecture
1277
1278# M68K Architecture
1279
1280config M54xx_WATCHDOG
1281 tristate "MCF54xx watchdog support"
1282 depends on M548x
1283 help
1284 To compile this driver as a module, choose M here: the
1285 module will be called m54xx_wdt.
1286
1287# MicroBlaze Architecture
1288
1289# MIPS Architecture
1290
1291config ATH79_WDT
1292 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1293 depends on ATH79
1294 help
1295 Hardware driver for the built-in watchdog timer on the Atheros
1296 AR71XX/AR724X/AR913X SoCs.
1297
1298config BCM47XX_WDT
1299 tristate "Broadcom BCM47xx Watchdog Timer"
1300 depends on BCM47XX || ARCH_BCM_5301X
1301 select WATCHDOG_CORE
1302 help
1303 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1304
1305config RC32434_WDT
1306 tristate "IDT RC32434 SoC Watchdog Timer"
1307 depends on MIKROTIK_RB532
1308 help
1309 Hardware driver for the IDT RC32434 SoC built-in
1310 watchdog timer.
1311
1312 To compile this driver as a module, choose M here: the
1313 module will be called rc32434_wdt.
1314
1315config INDYDOG
1316 tristate "Indy/I2 Hardware Watchdog"
1317 depends on SGI_HAS_INDYDOG
1318 help
1319 Hardware driver for the Indy's/I2's watchdog. This is a
1320 watchdog timer that will reboot the machine after a 60 second
1321 timer expired and no process has written to /dev/watchdog during
1322 that time.
1323
1324config JZ4740_WDT
1325 tristate "Ingenic jz4740 SoC hardware watchdog"
1326 depends on MACH_JZ4740
1327 select WATCHDOG_CORE
1328 help
1329 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1330
1331config WDT_MTX1
1332 tristate "MTX-1 Hardware Watchdog"
1333 depends on MIPS_MTX1
1334 help
1335 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1336 will reboot the machine after a 100 seconds timer expired.
1337
1338config PNX833X_WDT
1339 tristate "PNX833x Hardware Watchdog"
1340 depends on SOC_PNX8335
1341 help
1342 Hardware driver for the PNX833x's watchdog. This is a
1343 watchdog timer that will reboot the machine after a programmable
1344 timer has expired and no process has written to /dev/watchdog during
1345 that time.
1346
1347config SIBYTE_WDOG
1348 tristate "Sibyte SoC hardware watchdog"
1349 depends on CPU_SB1
1350 help
1351 Watchdog driver for the built in watchdog hardware in Sibyte
1352 SoC processors. There are apparently two watchdog timers
1353 on such processors; this driver supports only the first one,
1354 because currently Linux only supports exporting one watchdog
1355 to userspace.
1356
1357 To compile this driver as a loadable module, choose M here.
1358 The module will be called sb_wdog.
1359
1360config AR7_WDT
1361 tristate "TI AR7 Watchdog Timer"
1362 depends on AR7
1363 help
1364 Hardware driver for the TI AR7 Watchdog Timer.
1365
1366config TXX9_WDT
1367 tristate "Toshiba TXx9 Watchdog Timer"
1368 depends on CPU_TX39XX || CPU_TX49XX
1369 select WATCHDOG_CORE
1370 help
1371 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1372
1373config OCTEON_WDT
1374 tristate "Cavium OCTEON SOC family Watchdog Timer"
1375 depends on CAVIUM_OCTEON_SOC
1376 default y
1377 select WATCHDOG_CORE
1378 select EXPORT_UASM if OCTEON_WDT = m
1379 help
1380 Hardware driver for OCTEON's on chip watchdog timer.
1381 Enables the watchdog for all cores running Linux. It
1382 installs a NMI handler and pokes the watchdog based on an
1383 interrupt. On first expiration of the watchdog, the
1384 interrupt handler pokes it. The second expiration causes an
1385 NMI that prints a message. The third expiration causes a
1386 global soft reset.
1387
1388 When userspace has /dev/watchdog open, no poking is done
1389 from the first interrupt, it is then only poked when the
1390 device is written.
1391
1392config BCM63XX_WDT
1393 tristate "Broadcom BCM63xx hardware watchdog"
1394 depends on BCM63XX
1395 help
1396 Watchdog driver for the built in watchdog hardware in Broadcom
1397 BCM63xx SoC.
1398
1399 To compile this driver as a loadable module, choose M here.
1400 The module will be called bcm63xx_wdt.
1401
1402config BCM2835_WDT
1403 tristate "Broadcom BCM2835 hardware watchdog"
1404 depends on ARCH_BCM2835
1405 select WATCHDOG_CORE
1406 help
1407 Watchdog driver for the built in watchdog hardware in Broadcom
1408 BCM2835 SoC.
1409
1410 To compile this driver as a loadable module, choose M here.
1411 The module will be called bcm2835_wdt.
1412
1413config BCM_KONA_WDT
1414 tristate "BCM Kona Watchdog"
1415 depends on ARCH_BCM_MOBILE
1416 select WATCHDOG_CORE
1417 help
1418 Support for the watchdog timer on the following Broadcom BCM281xx
1419 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1420 BCM28155 variants.
1421
1422 Say 'Y' or 'M' here to enable the driver. The module will be called
1423 bcm_kona_wdt.
1424
1425config BCM_KONA_WDT_DEBUG
1426 bool "DEBUGFS support for BCM Kona Watchdog"
1427 depends on BCM_KONA_WDT
1428 help
1429 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1430 access to the driver's internal data structures as well as watchdog
1431 timer hardware registres.
1432
1433 If in doubt, say 'N'.
1434
1435config BCM7038_WDT
1436 tristate "BCM7038 Watchdog"
1437 select WATCHDOG_CORE
1438 depends on HAS_IOMEM
1439 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1440 help
1441 Watchdog driver for the built-in hardware in Broadcom 7038 and
1442 later SoCs used in set-top boxes. BCM7038 was made public
1443 during the 2004 CES, and since then, many Broadcom chips use this
1444 watchdog block, including some cable modem chips.
1445
1446config IMGPDC_WDT
1447 tristate "Imagination Technologies PDC Watchdog Timer"
1448 depends on HAS_IOMEM
1449 depends on METAG || MIPS || COMPILE_TEST
1450 select WATCHDOG_CORE
1451 help
1452 Driver for Imagination Technologies PowerDown Controller
1453 Watchdog Timer.
1454
1455 To compile this driver as a loadable module, choose M here.
1456 The module will be called imgpdc_wdt.
1457
1458config LANTIQ_WDT
1459 tristate "Lantiq SoC watchdog"
1460 depends on LANTIQ
1461 help
1462 Hardware driver for the Lantiq SoC Watchdog Timer.
1463
1464config RALINK_WDT
1465 tristate "Ralink SoC watchdog"
1466 select WATCHDOG_CORE
1467 depends on RALINK
1468 help
1469 Hardware driver for the Ralink SoC Watchdog Timer.
1470
1471config MT7621_WDT
1472 tristate "Mediatek SoC watchdog"
1473 select WATCHDOG_CORE
1474 depends on SOC_MT7620 || SOC_MT7621
1475 help
1476 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1477
1478# PARISC Architecture
1479
1480# POWERPC Architecture
1481
1482config GEF_WDT
1483 tristate "GE Watchdog Timer"
1484 depends on GE_FPGA
1485 ---help---
1486 Watchdog timer found in a number of GE single board computers.
1487
1488config MPC5200_WDT
1489 bool "MPC52xx Watchdog Timer"
1490 depends on PPC_MPC52xx
1491 help
1492 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1493
1494config 8xxx_WDT
1495 tristate "MPC8xxx Platform Watchdog Timer"
1496 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1497 select WATCHDOG_CORE
1498 help
1499 This driver is for a SoC level watchdog that exists on some
1500 Freescale PowerPC processors. So far this driver supports:
1501 - MPC8xx watchdogs
1502 - MPC83xx watchdogs
1503 - MPC86xx watchdogs
1504
1505 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1506
1507config MV64X60_WDT
1508 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1509 depends on MV64X60
1510
1511config PIKA_WDT
1512 tristate "PIKA FPGA Watchdog"
1513 depends on WARP
1514 default y
1515 help
1516 This enables the watchdog in the PIKA FPGA. Currently used on
1517 the Warp platform.
1518
1519config BOOKE_WDT
1520 tristate "PowerPC Book-E Watchdog Timer"
1521 depends on BOOKE || 4xx
1522 select WATCHDOG_CORE
1523 ---help---
1524 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1525 MPC85xx SOCs and the IBM PowerPC 440.
1526
1527 Please see Documentation/watchdog/watchdog-api.txt for
1528 more information.
1529
1530config BOOKE_WDT_DEFAULT_TIMEOUT
1531 int "PowerPC Book-E Watchdog Timer Default Timeout"
1532 depends on BOOKE_WDT
1533 default 38 if PPC_FSL_BOOK3E
1534 range 0 63 if PPC_FSL_BOOK3E
1535 default 3 if !PPC_FSL_BOOK3E
1536 range 0 3 if !PPC_FSL_BOOK3E
1537 help
1538 Select the default watchdog timer period to be used by the PowerPC
1539 Book-E watchdog driver. A watchdog "event" occurs when the bit
1540 position represented by this number transitions from zero to one.
1541
1542 For Freescale Book-E processors, this is a number between 0 and 63.
1543 For other Book-E processors, this is a number between 0 and 3.
1544
1545 The value can be overridden by the wdt_period command-line parameter.
1546
1547config MEN_A21_WDT
1548 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1549 select WATCHDOG_CORE
1550 depends on GPIOLIB || COMPILE_TEST
1551 help
1552 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1553
1554 The driver can also be built as a module. If so, the module will be
1555 called mena21_wdt.
1556
1557 If unsure select N here.
1558
1559# PPC64 Architecture
1560
1561config WATCHDOG_RTAS
1562 tristate "RTAS watchdog"
1563 depends on PPC_RTAS
1564 help
1565 This driver adds watchdog support for the RTAS watchdog.
1566
1567 To compile this driver as a module, choose M here. The module
1568 will be called wdrtas.
1569
1570# S390 Architecture
1571
1572config DIAG288_WATCHDOG
1573 tristate "System z diag288 Watchdog"
1574 depends on S390
1575 select WATCHDOG_CORE
1576 help
1577 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1578 provide a virtual watchdog timer to their guest that cause a
1579 user define Control Program command to be executed after a
1580 timeout.
1581 LPAR provides a very similar interface. This driver handles
1582 both.
1583
1584 To compile this driver as a module, choose M here. The module
1585 will be called diag288_wdt.
1586
1587# SUPERH (sh + sh64) Architecture
1588
1589config SH_WDT
1590 tristate "SuperH Watchdog"
1591 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1592 select WATCHDOG_CORE
1593 help
1594 This driver adds watchdog support for the integrated watchdog in the
1595 SuperH processors. If you have one of these processors and wish
1596 to have watchdog support enabled, say Y, otherwise say N.
1597
1598 As a side note, saying Y here will automatically boost HZ to 1000
1599 so that the timer has a chance to clear the overflow counter. On
1600 slower systems (such as the SH-2 and SH-3) this will likely yield
1601 some performance issues. As such, the WDT should be avoided here
1602 unless it is absolutely necessary.
1603
1604 To compile this driver as a module, choose M here: the
1605 module will be called shwdt.
1606
1607# SPARC Architecture
1608
1609# SPARC64 Architecture
1610
1611config WATCHDOG_CP1XXX
1612 tristate "CP1XXX Hardware Watchdog support"
1613 depends on SPARC64 && PCI
1614 ---help---
1615 This is the driver for the hardware watchdog timers present on
1616 Sun Microsystems CompactPCI models CP1400 and CP1500.
1617
1618 To compile this driver as a module, choose M here: the
1619 module will be called cpwatchdog.
1620
1621 If you do not have a CompactPCI model CP1400 or CP1500, or
1622 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1623 you should say N to this option.
1624
1625config WATCHDOG_RIO
1626 tristate "RIO Hardware Watchdog support"
1627 depends on SPARC64 && PCI
1628 help
1629 Say Y here to support the hardware watchdog capability on Sun RIO
1630 machines. The watchdog timeout period is normally one minute but
1631 can be changed with a boot-time parameter.
1632
1633config WATCHDOG_SUN4V
1634 tristate "Sun4v Watchdog support"
1635 select WATCHDOG_CORE
1636 depends on SPARC64
1637 help
1638 Say Y here to support the hypervisor watchdog capability embedded
1639 in the SPARC sun4v architecture.
1640
1641 To compile this driver as a module, choose M here. The module will
1642 be called sun4v_wdt.
1643
1644# XTENSA Architecture
1645
1646# Xen Architecture
1647
1648config XEN_WDT
1649 tristate "Xen Watchdog support"
1650 depends on XEN
1651 help
1652 Say Y here to support the hypervisor watchdog capability provided
1653 by Xen 4.0 and newer. The watchdog timeout period is normally one
1654 minute but can be changed with a boot-time parameter.
1655
1656config UML_WATCHDOG
1657 tristate "UML watchdog"
1658 depends on UML
1659
1660#
1661# ISA-based Watchdog Cards
1662#
1663
1664comment "ISA-based Watchdog Cards"
1665 depends on ISA
1666
1667config PCWATCHDOG
1668 tristate "Berkshire Products ISA-PC Watchdog"
1669 depends on ISA
1670 ---help---
1671 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1672 This card simply watches your kernel to make sure it doesn't freeze,
1673 and if it does, it reboots your computer after a certain amount of
1674 time. This driver is like the WDT501 driver but for different
1675 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1676 watchdog cards can be ordered from <http://www.berkprod.com/>.
1677
1678 To compile this driver as a module, choose M here: the
1679 module will be called pcwd.
1680
1681 Most people will say N.
1682
1683config MIXCOMWD
1684 tristate "Mixcom Watchdog"
1685 depends on ISA
1686 ---help---
1687 This is a driver for the Mixcom hardware watchdog cards. This
1688 watchdog simply watches your kernel to make sure it doesn't freeze,
1689 and if it does, it reboots your computer after a certain amount of
1690 time.
1691
1692 To compile this driver as a module, choose M here: the
1693 module will be called mixcomwd.
1694
1695 Most people will say N.
1696
1697config WDT
1698 tristate "WDT Watchdog timer"
1699 depends on ISA
1700 ---help---
1701 If you have a WDT500P or WDT501P watchdog board, say Y here,
1702 otherwise N. It is not possible to probe for this board, which means
1703 that you have to inform the kernel about the IO port and IRQ that
1704 is needed (you can do this via the io and irq parameters)
1705
1706 To compile this driver as a module, choose M here: the
1707 module will be called wdt.
1708
1709#
1710# PCI-based Watchdog Cards
1711#
1712
1713comment "PCI-based Watchdog Cards"
1714 depends on PCI
1715
1716config PCIPCWATCHDOG
1717 tristate "Berkshire Products PCI-PC Watchdog"
1718 depends on PCI
1719 ---help---
1720 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1721 This card simply watches your kernel to make sure it doesn't freeze,
1722 and if it does, it reboots your computer after a certain amount of
1723 time. The card can also monitor the internal temperature of the PC.
1724 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1725
1726 To compile this driver as a module, choose M here: the
1727 module will be called pcwd_pci.
1728
1729 Most people will say N.
1730
1731config WDTPCI
1732 tristate "PCI-WDT500/501 Watchdog timer"
1733 depends on PCI
1734 ---help---
1735 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1736
1737 If you have a PCI-WDT501 watchdog board then you can enable the
1738 temperature sensor by setting the type parameter to 501.
1739
1740 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1741 can do this via the tachometer parameter. Only do this if you have a
1742 fan tachometer actually set up.
1743
1744 To compile this driver as a module, choose M here: the
1745 module will be called wdt_pci.
1746
1747#
1748# USB-based Watchdog Cards
1749#
1750
1751comment "USB-based Watchdog Cards"
1752 depends on USB
1753
1754config USBPCWATCHDOG
1755 tristate "Berkshire Products USB-PC Watchdog"
1756 depends on USB
1757 ---help---
1758 This is the driver for the Berkshire Products USB-PC Watchdog card.
1759 This card simply watches your kernel to make sure it doesn't freeze,
1760 and if it does, it reboots your computer after a certain amount of
1761 time. The card can also monitor the internal temperature of the PC.
1762 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1763
1764 To compile this driver as a module, choose M here: the
1765 module will be called pcwd_usb.
1766
1767 Most people will say N.
1768
1769endif # WATCHDOG