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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 select WATCHDOG_CORE
59 help
60 A software monitoring watchdog. This will fail to reboot your system
61 from some situations that the hardware watchdog will recover
62 from. Equally it's a lot cheaper to install.
63
64 To compile this driver as a module, choose M here: the
65 module will be called softdog.
66
67config DA9052_WATCHDOG
68 tristate "Dialog DA9052 Watchdog"
69 depends on PMIC_DA9052
70 select WATCHDOG_CORE
71 help
72 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
73 cause system reset.
74
75 Say Y here to include support for the DA9052 watchdog.
76 Alternatively say M to compile the driver as a module,
77 which will be called da9052_wdt.
78
79config WM831X_WATCHDOG
80 tristate "WM831x watchdog"
81 depends on MFD_WM831X
82 select WATCHDOG_CORE
83 help
84 Support for the watchdog in the WM831x AudioPlus PMICs. When
85 the watchdog triggers the system will be reset.
86
87config WM8350_WATCHDOG
88 tristate "WM8350 watchdog"
89 depends on MFD_WM8350
90 select WATCHDOG_CORE
91 help
92 Support for the watchdog in the WM8350 AudioPlus PMIC. When
93 the watchdog triggers the system will be reset.
94
95# ALPHA Architecture
96
97# ARM Architecture
98
99config ARM_SP805_WATCHDOG
100 tristate "ARM SP805 Watchdog"
101 depends on ARM_AMBA
102 select WATCHDOG_CORE
103 help
104 ARM Primecell SP805 Watchdog timer. This will reboot your system when
105 the timeout is reached.
106
107config AT91RM9200_WATCHDOG
108 tristate "AT91RM9200 watchdog"
109 depends on ARCH_AT91RM9200
110 help
111 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
112 system when the timeout is reached.
113
114config AT91SAM9X_WATCHDOG
115 tristate "AT91SAM9X / AT91CAP9 watchdog"
116 depends on ARCH_AT91 && !ARCH_AT91RM9200
117 help
118 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
119 reboot your system when the timeout is reached.
120
121config 21285_WATCHDOG
122 tristate "DC21285 watchdog"
123 depends on FOOTBRIDGE
124 help
125 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
126 here if you wish to use this. Alternatively say M to compile the
127 driver as a module, which will be called wdt285.
128
129 This driver does not work on all machines. In particular, early CATS
130 boards have hardware problems that will cause the machine to simply
131 lock up if the watchdog fires.
132
133 "If in doubt, leave it out" - say N.
134
135config 977_WATCHDOG
136 tristate "NetWinder WB83C977 watchdog"
137 depends on FOOTBRIDGE && ARCH_NETWINDER
138 help
139 Say Y here to include support for the WB977 watchdog included in
140 NetWinder machines. Alternatively say M to compile the driver as
141 a module, which will be called wdt977.
142
143 Not sure? It's safe to say N.
144
145config IXP4XX_WATCHDOG
146 tristate "IXP4xx Watchdog"
147 depends on ARCH_IXP4XX
148 help
149 Say Y here if to include support for the watchdog timer
150 in the Intel IXP4xx network processors. This driver can
151 be built as a module by choosing M. The module will
152 be called ixp4xx_wdt.
153
154 Note: The internal IXP4xx watchdog does a soft CPU reset
155 which doesn't reset any peripherals. There are circumstances
156 where the watchdog will fail to reset the board correctly
157 (e.g., if the boot ROM is in an unreadable state).
158
159 Say N if you are unsure.
160
161config KS8695_WATCHDOG
162 tristate "KS8695 watchdog"
163 depends on ARCH_KS8695
164 help
165 Watchdog timer embedded into KS8695 processor. This will reboot your
166 system when the timeout is reached.
167
168config HAVE_S3C2410_WATCHDOG
169 bool
170 help
171 This will include watchdog timer support for Samsung SoCs. If
172 you want to include watchdog support for any machine, kindly
173 select this in the respective mach-XXXX/Kconfig file.
174
175config S3C2410_WATCHDOG
176 tristate "S3C2410 Watchdog"
177 depends on HAVE_S3C2410_WATCHDOG
178 select WATCHDOG_CORE
179 help
180 Watchdog timer block in the Samsung SoCs. This will reboot
181 the system when the timer expires with the watchdog enabled.
182
183 The driver is limited by the speed of the system's PCLK
184 signal, so with reasonably fast systems (PCLK around 50-66MHz)
185 then watchdog intervals of over approximately 20seconds are
186 unavailable.
187
188 The driver can be built as a module by choosing M, and will
189 be called s3c2410_wdt
190
191config SA1100_WATCHDOG
192 tristate "SA1100/PXA2xx watchdog"
193 depends on ARCH_SA1100 || ARCH_PXA
194 help
195 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
196 reboot your system when timeout is reached.
197
198 NOTE: once enabled, this timer cannot be disabled.
199
200 To compile this driver as a module, choose M here: the
201 module will be called sa1100_wdt.
202
203config DW_WATCHDOG
204 tristate "Synopsys DesignWare watchdog"
205 depends on ARM && HAVE_CLK
206 help
207 Say Y here if to include support for the Synopsys DesignWare
208 watchdog timer found in many ARM chips.
209 To compile this driver as a module, choose M here: the
210 module will be called dw_wdt.
211
212config MPCORE_WATCHDOG
213 tristate "MPcore watchdog"
214 depends on HAVE_ARM_TWD
215 help
216 Watchdog timer embedded into the MPcore system.
217
218 To compile this driver as a module, choose M here: the
219 module will be called mpcore_wdt.
220
221config EP93XX_WATCHDOG
222 tristate "EP93xx Watchdog"
223 depends on ARCH_EP93XX
224 select WATCHDOG_CORE
225 help
226 Say Y here if to include support for the watchdog timer
227 embedded in the Cirrus Logic EP93xx family of devices.
228
229 To compile this driver as a module, choose M here: the
230 module will be called ep93xx_wdt.
231
232config OMAP_WATCHDOG
233 tristate "OMAP Watchdog"
234 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
235 help
236 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
237 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
238
239config PNX4008_WATCHDOG
240 tristate "LPC32XX Watchdog"
241 depends on ARCH_LPC32XX
242 select WATCHDOG_CORE
243 help
244 Say Y here if to include support for the watchdog timer
245 in the LPC32XX processor.
246 This driver can be built as a module by choosing M. The module
247 will be called pnx4008_wdt.
248
249 Say N if you are unsure.
250
251config IOP_WATCHDOG
252 tristate "IOP Watchdog"
253 depends on PLAT_IOP
254 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
255 help
256 Say Y here if to include support for the watchdog timer
257 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
258 be built as a module by choosing M. The module will
259 be called iop_wdt.
260
261 Note: The IOP13XX watchdog does an Internal Bus Reset which will
262 affect both cores and the peripherals of the IOP. The ATU-X
263 and/or ATUe configuration registers will remain intact, but if
264 operating as an Root Complex and/or Central Resource, the PCI-X
265 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
266
267config DAVINCI_WATCHDOG
268 tristate "DaVinci watchdog"
269 depends on ARCH_DAVINCI
270 help
271 Say Y here if to include support for the watchdog timer
272 in the DaVinci DM644x/DM646x processors.
273 To compile this driver as a module, choose M here: the
274 module will be called davinci_wdt.
275
276 NOTE: once enabled, this timer cannot be disabled.
277 Say N if you are unsure.
278
279config ORION_WATCHDOG
280 tristate "Orion watchdog"
281 depends on ARCH_ORION5X || ARCH_KIRKWOOD
282 select WATCHDOG_CORE
283 help
284 Say Y here if to include support for the watchdog timer
285 in the Marvell Orion5x and Kirkwood ARM SoCs.
286 To compile this driver as a module, choose M here: the
287 module will be called orion_wdt.
288
289config COH901327_WATCHDOG
290 bool "ST-Ericsson COH 901 327 watchdog"
291 depends on ARCH_U300
292 default y if MACH_U300
293 select WATCHDOG_CORE
294 help
295 Say Y here to include Watchdog timer support for the
296 watchdog embedded into the ST-Ericsson U300 series platforms.
297 This watchdog is used to reset the system and thus cannot be
298 compiled as a module.
299
300config TWL4030_WATCHDOG
301 tristate "TWL4030 Watchdog"
302 depends on TWL4030_CORE
303 help
304 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
305 watchdog timer support for TWL4030 chips.
306
307config STMP3XXX_WATCHDOG
308 tristate "Freescale STMP3XXX watchdog"
309 depends on ARCH_STMP3XXX
310 help
311 Say Y here if to include support for the watchdog timer
312 for the Sigmatel STMP37XX/378X SoC.
313 To compile this driver as a module, choose M here: the
314 module will be called stmp3xxx_wdt.
315
316config NUC900_WATCHDOG
317 tristate "Nuvoton NUC900 watchdog"
318 depends on ARCH_W90X900
319 help
320 Say Y here if to include support for the watchdog timer
321 for the Nuvoton NUC900 series SoCs.
322 To compile this driver as a module, choose M here: the
323 module will be called nuc900_wdt.
324
325config TS72XX_WATCHDOG
326 tristate "TS-72XX SBC Watchdog"
327 depends on MACH_TS72XX
328 help
329 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
330 watchdog timer implemented in a external CPLD chip. Say Y here
331 if you want to support for the watchdog timer on TS-72XX boards.
332
333 To compile this driver as a module, choose M here: the
334 module will be called ts72xx_wdt.
335
336config MAX63XX_WATCHDOG
337 tristate "Max63xx watchdog"
338 depends on ARM && HAS_IOMEM
339 select WATCHDOG_CORE
340 help
341 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
342
343config IMX2_WDT
344 tristate "IMX2+ Watchdog"
345 depends on IMX_HAVE_PLATFORM_IMX2_WDT
346 help
347 This is the driver for the hardware watchdog
348 on the Freescale IMX2 and later processors.
349 If you have one of these processors and wish to have
350 watchdog support enabled, say Y, otherwise say N.
351
352 To compile this driver as a module, choose M here: the
353 module will be called imx2_wdt.
354
355# AVR32 Architecture
356
357config AT32AP700X_WDT
358 tristate "AT32AP700x watchdog"
359 depends on CPU_AT32AP700X
360 help
361 Watchdog timer embedded into AT32AP700x devices. This will reboot
362 your system when the timeout is reached.
363
364# BLACKFIN Architecture
365
366config BFIN_WDT
367 tristate "Blackfin On-Chip Watchdog Timer"
368 depends on BLACKFIN
369 ---help---
370 If you say yes here you will get support for the Blackfin On-Chip
371 Watchdog Timer. If you have one of these processors and wish to
372 have watchdog support enabled, say Y, otherwise say N.
373
374 To compile this driver as a module, choose M here: the
375 module will be called bfin_wdt.
376
377# CRIS Architecture
378
379# FRV Architecture
380
381# H8300 Architecture
382
383# X86 (i386 + ia64 + x86_64) Architecture
384
385config ACQUIRE_WDT
386 tristate "Acquire SBC Watchdog Timer"
387 depends on X86
388 ---help---
389 This is the driver for the hardware watchdog on Single Board
390 Computers produced by Acquire Inc (and others). This watchdog
391 simply watches your kernel to make sure it doesn't freeze, and if
392 it does, it reboots your computer after a certain amount of time.
393
394 To compile this driver as a module, choose M here: the
395 module will be called acquirewdt.
396
397 Most people will say N.
398
399config ADVANTECH_WDT
400 tristate "Advantech SBC Watchdog Timer"
401 depends on X86
402 help
403 If you are configuring a Linux kernel for the Advantech single-board
404 computer, say `Y' here to support its built-in watchdog timer
405 feature. More information can be found at
406 <http://www.advantech.com.tw/products/>
407
408config ALIM1535_WDT
409 tristate "ALi M1535 PMU Watchdog Timer"
410 depends on X86 && PCI
411 ---help---
412 This is the driver for the hardware watchdog on the ALi M1535 PMU.
413
414 To compile this driver as a module, choose M here: the
415 module will be called alim1535_wdt.
416
417 Most people will say N.
418
419config ALIM7101_WDT
420 tristate "ALi M7101 PMU Computer Watchdog"
421 depends on PCI
422 help
423 This is the driver for the hardware watchdog on the ALi M7101 PMU
424 as used in the x86 Cobalt servers and also found in some
425 SPARC Netra servers too.
426
427 To compile this driver as a module, choose M here: the
428 module will be called alim7101_wdt.
429
430 Most people will say N.
431
432config F71808E_WDT
433 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
434 depends on X86 && EXPERIMENTAL
435 help
436 This is the driver for the hardware watchdog on the Fintek
437 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
438
439 You can compile this driver directly into the kernel, or use
440 it as a module. The module will be called f71808e_wdt.
441
442config SP5100_TCO
443 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
444 depends on X86 && PCI
445 ---help---
446 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
447 (Total Cost of Ownership) timer is a watchdog timer that will reboot
448 the machine after its expiration. The expiration time can be
449 configured with the "heartbeat" parameter.
450
451 To compile this driver as a module, choose M here: the
452 module will be called sp5100_tco.
453
454config GEODE_WDT
455 tristate "AMD Geode CS5535/CS5536 Watchdog"
456 depends on CS5535_MFGPT
457 help
458 This driver enables a watchdog capability built into the
459 CS5535/CS5536 companion chips for the AMD Geode GX and LX
460 processors. This watchdog watches your kernel to make sure
461 it doesn't freeze, and if it does, it reboots your computer after
462 a certain amount of time.
463
464 You can compile this driver directly into the kernel, or use
465 it as a module. The module will be called geodewdt.
466
467config SC520_WDT
468 tristate "AMD Elan SC520 processor Watchdog"
469 depends on X86
470 help
471 This is the driver for the hardware watchdog built in to the
472 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
473 This watchdog simply watches your kernel to make sure it doesn't
474 freeze, and if it does, it reboots your computer after a certain
475 amount of time.
476
477 You can compile this driver directly into the kernel, or use
478 it as a module. The module will be called sc520_wdt.
479
480config SBC_FITPC2_WATCHDOG
481 tristate "Compulab SBC-FITPC2 watchdog"
482 depends on X86
483 ---help---
484 This is the driver for the built-in watchdog timer on the fit-PC2,
485 fit-PC2i, CM-iAM single-board computers made by Compulab.
486
487 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
488 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
489
490 Entering BIOS setup temporary disables watchdog operation regardless to current state,
491 so system will not be restarted while user in BIOS setup.
492
493 Once watchdog was enabled the system will be restarted every
494 "Watchdog Timer Value" period, so to prevent it user can restart or
495 disable the watchdog.
496
497 To compile this driver as a module, choose M here: the
498 module will be called sbc_fitpc2_wdt.
499
500 Most people will say N.
501
502config EUROTECH_WDT
503 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
504 depends on X86
505 help
506 Enable support for the watchdog timer on the Eurotech CPU-1220 and
507 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
508 information are at <http://www.eurotech.it/>.
509
510config IB700_WDT
511 tristate "IB700 SBC Watchdog Timer"
512 depends on X86
513 ---help---
514 This is the driver for the hardware watchdog on the IB700 Single
515 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
516 simply watches your kernel to make sure it doesn't freeze, and if
517 it does, it reboots your computer after a certain amount of time.
518
519 This driver is like the WDT501 driver but for slightly different hardware.
520
521 To compile this driver as a module, choose M here: the
522 module will be called ib700wdt.
523
524 Most people will say N.
525
526config IBMASR
527 tristate "IBM Automatic Server Restart"
528 depends on X86
529 help
530 This is the driver for the IBM Automatic Server Restart watchdog
531 timer built-in into some eServer xSeries machines.
532
533 To compile this driver as a module, choose M here: the
534 module will be called ibmasr.
535
536config WAFER_WDT
537 tristate "ICP Single Board Computer Watchdog Timer"
538 depends on X86
539 help
540 This is a driver for the hardware watchdog on the ICP Single
541 Board Computer. This driver is working on (at least) the following
542 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
543
544 To compile this driver as a module, choose M here: the
545 module will be called wafer5823wdt.
546
547config I6300ESB_WDT
548 tristate "Intel 6300ESB Timer/Watchdog"
549 depends on PCI
550 ---help---
551 Hardware driver for the watchdog timer built into the Intel
552 6300ESB controller hub.
553
554 To compile this driver as a module, choose M here: the
555 module will be called i6300esb.
556
557config IE6XX_WDT
558 tristate "Intel Atom E6xx Watchdog"
559 depends on X86 && PCI
560 select WATCHDOG_CORE
561 select MFD_CORE
562 select LPC_SCH
563 ---help---
564 Hardware driver for the watchdog timer built into the Intel
565 Atom E6XX (TunnelCreek) processor.
566
567 To compile this driver as a module, choose M here: the
568 module will be called ie6xx_wdt.
569
570config INTEL_SCU_WATCHDOG
571 bool "Intel SCU Watchdog for Mobile Platforms"
572 depends on X86_MRST
573 ---help---
574 Hardware driver for the watchdog time built into the Intel SCU
575 for Intel Mobile Platforms.
576
577 To compile this driver as a module, choose M here.
578
579config ITCO_WDT
580 tristate "Intel TCO Timer/Watchdog"
581 depends on (X86 || IA64) && PCI
582 select WATCHDOG_CORE
583 select LPC_ICH
584 ---help---
585 Hardware driver for the intel TCO timer based watchdog devices.
586 These drivers are included in the Intel 82801 I/O Controller
587 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
588 controller hub.
589
590 The TCO (Total Cost of Ownership) timer is a watchdog timer
591 that will reboot the machine after its second expiration. The
592 expiration time can be configured with the "heartbeat" parameter.
593
594 On some motherboards the driver may fail to reset the chipset's
595 NO_REBOOT flag which prevents the watchdog from rebooting the
596 machine. If this is the case you will get a kernel message like
597 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
598
599 To compile this driver as a module, choose M here: the
600 module will be called iTCO_wdt.
601
602config ITCO_VENDOR_SUPPORT
603 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
604 depends on ITCO_WDT
605 ---help---
606 Add vendor specific support to the intel TCO timer based watchdog
607 devices. At this moment we only have additional support for some
608 SuperMicro Inc. motherboards.
609
610config IT8712F_WDT
611 tristate "IT8712F (Smart Guardian) Watchdog Timer"
612 depends on X86
613 ---help---
614 This is the driver for the built-in watchdog timer on the IT8712F
615 Super I/0 chipset used on many motherboards.
616
617 If the driver does not work, then make sure that the game port in
618 the BIOS is enabled.
619
620 To compile this driver as a module, choose M here: the
621 module will be called it8712f_wdt.
622
623config IT87_WDT
624 tristate "IT87 Watchdog Timer"
625 depends on X86 && EXPERIMENTAL
626 ---help---
627 This is the driver for the hardware watchdog on the ITE IT8702,
628 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
629 Super I/O chips.
630
631 If the driver does not work, then make sure that the game port in
632 the BIOS is enabled.
633
634 This watchdog simply watches your kernel to make sure it doesn't
635 freeze, and if it does, it reboots your computer after a certain
636 amount of time.
637
638 To compile this driver as a module, choose M here: the module will
639 be called it87_wdt.
640
641config HP_WATCHDOG
642 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
643 depends on X86 && PCI
644 help
645 A software monitoring watchdog and NMI sourcing driver. This driver
646 will detect lockups and provide a stack trace. This is a driver that
647 will only load on an HP ProLiant system with a minimum of iLO2 support.
648 To compile this driver as a module, choose M here: the module will be
649 called hpwdt.
650
651config HPWDT_NMI_DECODING
652 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
653 depends on HP_WATCHDOG
654 default y
655 help
656 When an NMI occurs this feature will make the necessary BIOS calls to
657 log the cause of the NMI.
658
659config SC1200_WDT
660 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
661 depends on X86
662 help
663 This is a driver for National Semiconductor PC87307/PC97307 hardware
664 watchdog cards as found on the SC1200. This watchdog is mainly used
665 for power management purposes and can be used to power down the device
666 during inactivity periods (includes interrupt activity monitoring).
667
668 To compile this driver as a module, choose M here: the
669 module will be called sc1200wdt.
670
671 Most people will say N.
672
673config SCx200_WDT
674 tristate "National Semiconductor SCx200 Watchdog"
675 depends on SCx200 && PCI
676 help
677 Enable the built-in watchdog timer support on the National
678 Semiconductor SCx200 processors.
679
680 If compiled as a module, it will be called scx200_wdt.
681
682config PC87413_WDT
683 tristate "NS PC87413 watchdog"
684 depends on X86
685 ---help---
686 This is the driver for the hardware watchdog on the PC87413 chipset
687 This watchdog simply watches your kernel to make sure it doesn't
688 freeze, and if it does, it reboots your computer after a certain
689 amount of time.
690
691 To compile this driver as a module, choose M here: the
692 module will be called pc87413_wdt.
693
694 Most people will say N.
695
696config NV_TCO
697 tristate "nVidia TCO Timer/Watchdog"
698 depends on X86 && PCI
699 ---help---
700 Hardware driver for the TCO timer built into the nVidia Hub family
701 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
702 watchdog timer that will reboot the machine after its second
703 expiration. The expiration time can be configured with the
704 "heartbeat" parameter.
705
706 On some motherboards the driver may fail to reset the chipset's
707 NO_REBOOT flag which prevents the watchdog from rebooting the
708 machine. If this is the case you will get a kernel message like
709 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
710
711 To compile this driver as a module, choose M here: the
712 module will be called nv_tco.
713
714config RDC321X_WDT
715 tristate "RDC R-321x SoC watchdog"
716 depends on X86_RDC321X
717 help
718 This is the driver for the built in hardware watchdog
719 in the RDC R-321x SoC.
720
721 To compile this driver as a module, choose M here: the
722 module will be called rdc321x_wdt.
723
724config 60XX_WDT
725 tristate "SBC-60XX Watchdog Timer"
726 depends on X86
727 help
728 This driver can be used with the watchdog timer found on some
729 single board computers, namely the 6010 PII based computer.
730 It may well work with other cards. It reads port 0x443 to enable
731 and re-set the watchdog timer, and reads port 0x45 to disable
732 the watchdog. If you have a card that behave in similar ways,
733 you can probably make this driver work with your card as well.
734
735 You can compile this driver directly into the kernel, or use
736 it as a module. The module will be called sbc60xxwdt.
737
738config SBC8360_WDT
739 tristate "SBC8360 Watchdog Timer"
740 depends on X86
741 ---help---
742
743 This is the driver for the hardware watchdog on the SBC8360 Single
744 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
745
746 To compile this driver as a module, choose M here: the
747 module will be called sbc8360.
748
749 Most people will say N.
750
751config SBC7240_WDT
752 tristate "SBC Nano 7240 Watchdog Timer"
753 depends on X86_32 && !UML
754 ---help---
755 This is the driver for the hardware watchdog found on the IEI
756 single board computers EPIC Nano 7240 (and likely others). This
757 watchdog simply watches your kernel to make sure it doesn't freeze,
758 and if it does, it reboots your computer after a certain amount of
759 time.
760
761 To compile this driver as a module, choose M here: the
762 module will be called sbc7240_wdt.
763
764config CPU5_WDT
765 tristate "SMA CPU5 Watchdog"
766 depends on X86
767 ---help---
768 TBD.
769 To compile this driver as a module, choose M here: the
770 module will be called cpu5wdt.
771
772config SMSC_SCH311X_WDT
773 tristate "SMSC SCH311X Watchdog Timer"
774 depends on X86
775 ---help---
776 This is the driver for the hardware watchdog timer on the
777 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
778 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
779 serial ports).
780
781 To compile this driver as a module, choose M here: the
782 module will be called sch311x_wdt.
783
784config SMSC37B787_WDT
785 tristate "Winbond SMsC37B787 Watchdog Timer"
786 depends on X86
787 ---help---
788 This is the driver for the hardware watchdog component on the
789 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
790 from Vision Systems and maybe others.
791
792 This watchdog simply watches your kernel to make sure it doesn't
793 freeze, and if it does, it reboots your computer after a certain
794 amount of time.
795
796 Usually a userspace daemon will notify the kernel WDT driver that
797 userspace is still alive, at regular intervals.
798
799 To compile this driver as a module, choose M here: the
800 module will be called smsc37b787_wdt.
801
802 Most people will say N.
803
804config VIA_WDT
805 tristate "VIA Watchdog Timer"
806 depends on X86 && PCI
807 select WATCHDOG_CORE
808 ---help---
809 This is the driver for the hardware watchdog timer on VIA
810 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
811
812 To compile this driver as a module, choose M here; the module
813 will be called via_wdt.
814
815 Most people will say N.
816
817config W83627HF_WDT
818 tristate "W83627HF/W83627DHG Watchdog Timer"
819 depends on X86
820 ---help---
821 This is the driver for the hardware watchdog on the W83627HF chipset
822 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
823 (and likely others). The driver also supports the W83627DHG chip.
824 This watchdog simply watches your kernel to make sure it doesn't
825 freeze, and if it does, it reboots your computer after a certain
826 amount of time.
827
828 To compile this driver as a module, choose M here: the
829 module will be called w83627hf_wdt.
830
831 Most people will say N.
832
833config W83697HF_WDT
834 tristate "W83697HF/W83697HG Watchdog Timer"
835 depends on X86
836 ---help---
837 This is the driver for the hardware watchdog on the W83697HF/HG
838 chipset as used in Dedibox/VIA motherboards (and likely others).
839 This watchdog simply watches your kernel to make sure it doesn't
840 freeze, and if it does, it reboots your computer after a certain
841 amount of time.
842
843 To compile this driver as a module, choose M here: the
844 module will be called w83697hf_wdt.
845
846 Most people will say N.
847
848config W83697UG_WDT
849 tristate "W83697UG/W83697UF Watchdog Timer"
850 depends on X86
851 ---help---
852 This is the driver for the hardware watchdog on the W83697UG/UF
853 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
854 This watchdog simply watches your kernel to make sure it doesn't
855 freeze, and if it does, it reboots your computer after a certain
856 amount of time.
857
858 To compile this driver as a module, choose M here: the
859 module will be called w83697ug_wdt.
860
861 Most people will say N.
862
863config W83877F_WDT
864 tristate "W83877F (EMACS) Watchdog Timer"
865 depends on X86
866 ---help---
867 This is the driver for the hardware watchdog on the W83877F chipset
868 as used in EMACS PC-104 motherboards (and likely others). This
869 watchdog simply watches your kernel to make sure it doesn't freeze,
870 and if it does, it reboots your computer after a certain amount of
871 time.
872
873 To compile this driver as a module, choose M here: the
874 module will be called w83877f_wdt.
875
876 Most people will say N.
877
878config W83977F_WDT
879 tristate "W83977F (PCM-5335) Watchdog Timer"
880 depends on X86
881 ---help---
882 This is the driver for the hardware watchdog on the W83977F I/O chip
883 as used in AAEON's PCM-5335 SBC (and likely others). This
884 watchdog simply watches your kernel to make sure it doesn't freeze,
885 and if it does, it reboots your computer after a certain amount of
886 time.
887
888 To compile this driver as a module, choose M here: the
889 module will be called w83977f_wdt.
890
891config MACHZ_WDT
892 tristate "ZF MachZ Watchdog"
893 depends on X86
894 ---help---
895 If you are using a ZF Micro MachZ processor, say Y here, otherwise
896 N. This is the driver for the watchdog timer built-in on that
897 processor using ZF-Logic interface. This watchdog simply watches
898 your kernel to make sure it doesn't freeze, and if it does, it
899 reboots your computer after a certain amount of time.
900
901 To compile this driver as a module, choose M here: the
902 module will be called machzwd.
903
904config SBC_EPX_C3_WATCHDOG
905 tristate "Winsystems SBC EPX-C3 watchdog"
906 depends on X86
907 ---help---
908 This is the driver for the built-in watchdog timer on the EPX-C3
909 Single-board computer made by Winsystems, Inc.
910
911 *Note*: This hardware watchdog is not probeable and thus there
912 is no way to know if writing to its IO address will corrupt
913 your system or have any real effect. The only way to be sure
914 that this driver does what you want is to make sure you
915 are running it on an EPX-C3 from Winsystems with the watchdog
916 timer at IO address 0x1ee and 0x1ef. It will write to both those
917 IO ports. Basically, the assumption is made that if you compile
918 this driver into your kernel and/or load it as a module, that you
919 know what you are doing and that you are in fact running on an
920 EPX-C3 board!
921
922 To compile this driver as a module, choose M here: the
923 module will be called sbc_epx_c3.
924
925# M32R Architecture
926
927# M68K Architecture
928
929config M54xx_WATCHDOG
930 tristate "MCF54xx watchdog support"
931 depends on M548x
932 help
933 To compile this driver as a module, choose M here: the
934 module will be called m54xx_wdt.
935
936# MicroBlaze Architecture
937
938config XILINX_WATCHDOG
939 tristate "Xilinx Watchdog timer"
940 depends on MICROBLAZE
941 ---help---
942 Watchdog driver for the xps_timebase_wdt ip core.
943
944 IMPORTANT: The xps_timebase_wdt parent must have the property
945 "clock-frequency" at device tree.
946
947 To compile this driver as a module, choose M here: the
948 module will be called of_xilinx_wdt.
949
950# MIPS Architecture
951
952config ATH79_WDT
953 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
954 depends on ATH79
955 help
956 Hardware driver for the built-in watchdog timer on the Atheros
957 AR71XX/AR724X/AR913X SoCs.
958
959config BCM47XX_WDT
960 tristate "Broadcom BCM47xx Watchdog Timer"
961 depends on BCM47XX
962 help
963 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
964
965config RC32434_WDT
966 tristate "IDT RC32434 SoC Watchdog Timer"
967 depends on MIKROTIK_RB532
968 help
969 Hardware driver for the IDT RC32434 SoC built-in
970 watchdog timer.
971
972 To compile this driver as a module, choose M here: the
973 module will be called rc32434_wdt.
974
975config INDYDOG
976 tristate "Indy/I2 Hardware Watchdog"
977 depends on SGI_HAS_INDYDOG
978 help
979 Hardware driver for the Indy's/I2's watchdog. This is a
980 watchdog timer that will reboot the machine after a 60 second
981 timer expired and no process has written to /dev/watchdog during
982 that time.
983
984config JZ4740_WDT
985 tristate "Ingenic jz4740 SoC hardware watchdog"
986 depends on MACH_JZ4740
987 select WATCHDOG_CORE
988 help
989 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
990
991config WDT_MTX1
992 tristate "MTX-1 Hardware Watchdog"
993 depends on MIPS_MTX1
994 help
995 Hardware driver for the MTX-1 boards. This is a watchdog timer that
996 will reboot the machine after a 100 seconds timer expired.
997
998config PNX833X_WDT
999 tristate "PNX833x Hardware Watchdog"
1000 depends on SOC_PNX8335
1001 help
1002 Hardware driver for the PNX833x's watchdog. This is a
1003 watchdog timer that will reboot the machine after a programmable
1004 timer has expired and no process has written to /dev/watchdog during
1005 that time.
1006
1007config SIBYTE_WDOG
1008 tristate "Sibyte SoC hardware watchdog"
1009 depends on CPU_SB1
1010 help
1011 Watchdog driver for the built in watchdog hardware in Sibyte
1012 SoC processors. There are apparently two watchdog timers
1013 on such processors; this driver supports only the first one,
1014 because currently Linux only supports exporting one watchdog
1015 to userspace.
1016
1017 To compile this driver as a loadable module, choose M here.
1018 The module will be called sb_wdog.
1019
1020config AR7_WDT
1021 tristate "TI AR7 Watchdog Timer"
1022 depends on AR7
1023 help
1024 Hardware driver for the TI AR7 Watchdog Timer.
1025
1026config TXX9_WDT
1027 tristate "Toshiba TXx9 Watchdog Timer"
1028 depends on CPU_TX39XX || CPU_TX49XX
1029 select WATCHDOG_CORE
1030 help
1031 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1032
1033config OCTEON_WDT
1034 tristate "Cavium OCTEON SOC family Watchdog Timer"
1035 depends on CPU_CAVIUM_OCTEON
1036 default y
1037 select EXPORT_UASM if OCTEON_WDT = m
1038 help
1039 Hardware driver for OCTEON's on chip watchdog timer.
1040 Enables the watchdog for all cores running Linux. It
1041 installs a NMI handler and pokes the watchdog based on an
1042 interrupt. On first expiration of the watchdog, the
1043 interrupt handler pokes it. The second expiration causes an
1044 NMI that prints a message. The third expiration causes a
1045 global soft reset.
1046
1047 When userspace has /dev/watchdog open, no poking is done
1048 from the first interrupt, it is then only poked when the
1049 device is written.
1050
1051config BCM63XX_WDT
1052 tristate "Broadcom BCM63xx hardware watchdog"
1053 depends on BCM63XX
1054 help
1055 Watchdog driver for the built in watchdog hardware in Broadcom
1056 BCM63xx SoC.
1057
1058 To compile this driver as a loadable module, choose M here.
1059 The module will be called bcm63xx_wdt.
1060
1061config LANTIQ_WDT
1062 tristate "Lantiq SoC watchdog"
1063 depends on LANTIQ
1064 help
1065 Hardware driver for the Lantiq SoC Watchdog Timer.
1066
1067# PARISC Architecture
1068
1069# POWERPC Architecture
1070
1071config GEF_WDT
1072 tristate "GE Watchdog Timer"
1073 depends on GE_FPGA
1074 ---help---
1075 Watchdog timer found in a number of GE single board computers.
1076
1077config MPC5200_WDT
1078 bool "MPC52xx Watchdog Timer"
1079 depends on PPC_MPC52xx
1080 help
1081 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1082
1083config 8xxx_WDT
1084 tristate "MPC8xxx Platform Watchdog Timer"
1085 depends on PPC_8xx || PPC_83xx || PPC_86xx
1086 help
1087 This driver is for a SoC level watchdog that exists on some
1088 Freescale PowerPC processors. So far this driver supports:
1089 - MPC8xx watchdogs
1090 - MPC83xx watchdogs
1091 - MPC86xx watchdogs
1092
1093 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1094
1095config MV64X60_WDT
1096 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1097 depends on MV64X60
1098
1099config PIKA_WDT
1100 tristate "PIKA FPGA Watchdog"
1101 depends on WARP
1102 default y
1103 help
1104 This enables the watchdog in the PIKA FPGA. Currently used on
1105 the Warp platform.
1106
1107config BOOKE_WDT
1108 tristate "PowerPC Book-E Watchdog Timer"
1109 depends on BOOKE || 4xx
1110 ---help---
1111 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1112 MPC85xx SOCs and the IBM PowerPC 440.
1113
1114 Please see Documentation/watchdog/watchdog-api.txt for
1115 more information.
1116
1117config BOOKE_WDT_DEFAULT_TIMEOUT
1118 int "PowerPC Book-E Watchdog Timer Default Timeout"
1119 depends on BOOKE_WDT
1120 default 38 if PPC_FSL_BOOK3E
1121 range 0 63 if PPC_FSL_BOOK3E
1122 default 3 if !PPC_FSL_BOOK3E
1123 range 0 3 if !PPC_FSL_BOOK3E
1124 help
1125 Select the default watchdog timer period to be used by the PowerPC
1126 Book-E watchdog driver. A watchdog "event" occurs when the bit
1127 position represented by this number transitions from zero to one.
1128
1129 For Freescale Book-E processors, this is a number between 0 and 63.
1130 For other Book-E processors, this is a number between 0 and 3.
1131
1132 The value can be overridden by the wdt_period command-line parameter.
1133
1134# PPC64 Architecture
1135
1136config WATCHDOG_RTAS
1137 tristate "RTAS watchdog"
1138 depends on PPC_RTAS
1139 help
1140 This driver adds watchdog support for the RTAS watchdog.
1141
1142 To compile this driver as a module, choose M here. The module
1143 will be called wdrtas.
1144
1145# S390 Architecture
1146
1147config ZVM_WATCHDOG
1148 tristate "z/VM Watchdog Timer"
1149 depends on S390
1150 help
1151 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1152 provide a virtual watchdog timer to their guest that cause a
1153 user define Control Program command to be executed after a
1154 timeout.
1155
1156 To compile this driver as a module, choose M here. The module
1157 will be called vmwatchdog.
1158
1159# SUPERH (sh + sh64) Architecture
1160
1161config SH_WDT
1162 tristate "SuperH Watchdog"
1163 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1164 select WATCHDOG_CORE
1165 help
1166 This driver adds watchdog support for the integrated watchdog in the
1167 SuperH processors. If you have one of these processors and wish
1168 to have watchdog support enabled, say Y, otherwise say N.
1169
1170 As a side note, saying Y here will automatically boost HZ to 1000
1171 so that the timer has a chance to clear the overflow counter. On
1172 slower systems (such as the SH-2 and SH-3) this will likely yield
1173 some performance issues. As such, the WDT should be avoided here
1174 unless it is absolutely necessary.
1175
1176 To compile this driver as a module, choose M here: the
1177 module will be called shwdt.
1178
1179# SPARC Architecture
1180
1181# SPARC64 Architecture
1182
1183config WATCHDOG_CP1XXX
1184 tristate "CP1XXX Hardware Watchdog support"
1185 depends on SPARC64 && PCI
1186 ---help---
1187 This is the driver for the hardware watchdog timers present on
1188 Sun Microsystems CompactPCI models CP1400 and CP1500.
1189
1190 To compile this driver as a module, choose M here: the
1191 module will be called cpwatchdog.
1192
1193 If you do not have a CompactPCI model CP1400 or CP1500, or
1194 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1195 you should say N to this option.
1196
1197config WATCHDOG_RIO
1198 tristate "RIO Hardware Watchdog support"
1199 depends on SPARC64 && PCI
1200 help
1201 Say Y here to support the hardware watchdog capability on Sun RIO
1202 machines. The watchdog timeout period is normally one minute but
1203 can be changed with a boot-time parameter.
1204
1205# XTENSA Architecture
1206
1207# Xen Architecture
1208
1209config XEN_WDT
1210 tristate "Xen Watchdog support"
1211 depends on XEN
1212 help
1213 Say Y here to support the hypervisor watchdog capability provided
1214 by Xen 4.0 and newer. The watchdog timeout period is normally one
1215 minute but can be changed with a boot-time parameter.
1216
1217config UML_WATCHDOG
1218 tristate "UML watchdog"
1219 depends on UML
1220
1221#
1222# ISA-based Watchdog Cards
1223#
1224
1225comment "ISA-based Watchdog Cards"
1226 depends on ISA
1227
1228config PCWATCHDOG
1229 tristate "Berkshire Products ISA-PC Watchdog"
1230 depends on ISA
1231 ---help---
1232 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1233 This card simply watches your kernel to make sure it doesn't freeze,
1234 and if it does, it reboots your computer after a certain amount of
1235 time. This driver is like the WDT501 driver but for different
1236 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1237 watchdog cards can be ordered from <http://www.berkprod.com/>.
1238
1239 To compile this driver as a module, choose M here: the
1240 module will be called pcwd.
1241
1242 Most people will say N.
1243
1244config MIXCOMWD
1245 tristate "Mixcom Watchdog"
1246 depends on ISA
1247 ---help---
1248 This is a driver for the Mixcom hardware watchdog cards. This
1249 watchdog simply watches your kernel to make sure it doesn't freeze,
1250 and if it does, it reboots your computer after a certain amount of
1251 time.
1252
1253 To compile this driver as a module, choose M here: the
1254 module will be called mixcomwd.
1255
1256 Most people will say N.
1257
1258config WDT
1259 tristate "WDT Watchdog timer"
1260 depends on ISA
1261 ---help---
1262 If you have a WDT500P or WDT501P watchdog board, say Y here,
1263 otherwise N. It is not possible to probe for this board, which means
1264 that you have to inform the kernel about the IO port and IRQ that
1265 is needed (you can do this via the io and irq parameters)
1266
1267 To compile this driver as a module, choose M here: the
1268 module will be called wdt.
1269
1270#
1271# PCI-based Watchdog Cards
1272#
1273
1274comment "PCI-based Watchdog Cards"
1275 depends on PCI
1276
1277config PCIPCWATCHDOG
1278 tristate "Berkshire Products PCI-PC Watchdog"
1279 depends on PCI
1280 ---help---
1281 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1282 This card simply watches your kernel to make sure it doesn't freeze,
1283 and if it does, it reboots your computer after a certain amount of
1284 time. The card can also monitor the internal temperature of the PC.
1285 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1286
1287 To compile this driver as a module, choose M here: the
1288 module will be called pcwd_pci.
1289
1290 Most people will say N.
1291
1292config WDTPCI
1293 tristate "PCI-WDT500/501 Watchdog timer"
1294 depends on PCI
1295 ---help---
1296 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1297
1298 If you have a PCI-WDT501 watchdog board then you can enable the
1299 temperature sensor by setting the type parameter to 501.
1300
1301 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1302 can do this via the tachometer parameter. Only do this if you have a
1303 fan tachometer actually set up.
1304
1305 To compile this driver as a module, choose M here: the
1306 module will be called wdt_pci.
1307
1308#
1309# USB-based Watchdog Cards
1310#
1311
1312comment "USB-based Watchdog Cards"
1313 depends on USB
1314
1315config USBPCWATCHDOG
1316 tristate "Berkshire Products USB-PC Watchdog"
1317 depends on USB
1318 ---help---
1319 This is the driver for the Berkshire Products USB-PC Watchdog card.
1320 This card simply watches your kernel to make sure it doesn't freeze,
1321 and if it does, it reboots your computer after a certain amount of
1322 time. The card can also monitor the internal temperature of the PC.
1323 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1324
1325 To compile this driver as a module, choose M here: the
1326 module will be called pcwd_usb.
1327
1328 Most people will say N.
1329
1330endif # WATCHDOG