Merge tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / watchdog / Kconfig
1 #
2 # Watchdog device configuration
3 #
4
5 menuconfig 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
29 if WATCHDOG
30
31 config 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
39 config 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
52 comment "Watchdog Device Drivers"
53
54 # Architecture Independent
55
56 config 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
67 config WM831X_WATCHDOG
68 tristate "WM831x watchdog"
69 depends on MFD_WM831X
70 select WATCHDOG_CORE
71 help
72 Support for the watchdog in the WM831x AudioPlus PMICs. When
73 the watchdog triggers the system will be reset.
74
75 config WM8350_WATCHDOG
76 tristate "WM8350 watchdog"
77 depends on MFD_WM8350
78 select WATCHDOG_CORE
79 help
80 Support for the watchdog in the WM8350 AudioPlus PMIC. When
81 the watchdog triggers the system will be reset.
82
83 # ALPHA Architecture
84
85 # ARM Architecture
86
87 config ARM_SP805_WATCHDOG
88 tristate "ARM SP805 Watchdog"
89 depends on ARM_AMBA
90 help
91 ARM Primecell SP805 Watchdog timer. This will reboot your system when
92 the timeout is reached.
93
94 config AT91RM9200_WATCHDOG
95 tristate "AT91RM9200 watchdog"
96 depends on ARCH_AT91RM9200
97 help
98 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
99 system when the timeout is reached.
100
101 config AT91SAM9X_WATCHDOG
102 tristate "AT91SAM9X / AT91CAP9 watchdog"
103 depends on ARCH_AT91 && !ARCH_AT91RM9200
104 help
105 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
106 reboot your system when the timeout is reached.
107
108 config 21285_WATCHDOG
109 tristate "DC21285 watchdog"
110 depends on FOOTBRIDGE
111 help
112 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
113 here if you wish to use this. Alternatively say M to compile the
114 driver as a module, which will be called wdt285.
115
116 This driver does not work on all machines. In particular, early CATS
117 boards have hardware problems that will cause the machine to simply
118 lock up if the watchdog fires.
119
120 "If in doubt, leave it out" - say N.
121
122 config 977_WATCHDOG
123 tristate "NetWinder WB83C977 watchdog"
124 depends on FOOTBRIDGE && ARCH_NETWINDER
125 help
126 Say Y here to include support for the WB977 watchdog included in
127 NetWinder machines. Alternatively say M to compile the driver as
128 a module, which will be called wdt977.
129
130 Not sure? It's safe to say N.
131
132 config IXP4XX_WATCHDOG
133 tristate "IXP4xx Watchdog"
134 depends on ARCH_IXP4XX
135 help
136 Say Y here if to include support for the watchdog timer
137 in the Intel IXP4xx network processors. This driver can
138 be built as a module by choosing M. The module will
139 be called ixp4xx_wdt.
140
141 Note: The internal IXP4xx watchdog does a soft CPU reset
142 which doesn't reset any peripherals. There are circumstances
143 where the watchdog will fail to reset the board correctly
144 (e.g., if the boot ROM is in an unreadable state).
145
146 Say N if you are unsure.
147
148 config KS8695_WATCHDOG
149 tristate "KS8695 watchdog"
150 depends on ARCH_KS8695
151 help
152 Watchdog timer embedded into KS8695 processor. This will reboot your
153 system when the timeout is reached.
154
155 config HAVE_S3C2410_WATCHDOG
156 bool
157 help
158 This will include watchdog timer support for Samsung SoCs. If
159 you want to include watchdog support for any machine, kindly
160 select this in the respective mach-XXXX/Kconfig file.
161
162 config S3C2410_WATCHDOG
163 tristate "S3C2410 Watchdog"
164 depends on HAVE_S3C2410_WATCHDOG
165 select WATCHDOG_CORE
166 help
167 Watchdog timer block in the Samsung SoCs. This will reboot
168 the system when the timer expires with the watchdog enabled.
169
170 The driver is limited by the speed of the system's PCLK
171 signal, so with reasonably fast systems (PCLK around 50-66MHz)
172 then watchdog intervals of over approximately 20seconds are
173 unavailable.
174
175 The driver can be built as a module by choosing M, and will
176 be called s3c2410_wdt
177
178 config SA1100_WATCHDOG
179 tristate "SA1100/PXA2xx watchdog"
180 depends on ARCH_SA1100 || ARCH_PXA
181 help
182 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
183 reboot your system when timeout is reached.
184
185 NOTE: once enabled, this timer cannot be disabled.
186
187 To compile this driver as a module, choose M here: the
188 module will be called sa1100_wdt.
189
190 config DW_WATCHDOG
191 tristate "Synopsys DesignWare watchdog"
192 depends on ARM && HAVE_CLK
193 help
194 Say Y here if to include support for the Synopsys DesignWare
195 watchdog timer found in many ARM chips.
196 To compile this driver as a module, choose M here: the
197 module will be called dw_wdt.
198
199 config MPCORE_WATCHDOG
200 tristate "MPcore watchdog"
201 depends on HAVE_ARM_TWD
202 help
203 Watchdog timer embedded into the MPcore system.
204
205 To compile this driver as a module, choose M here: the
206 module will be called mpcore_wdt.
207
208 config EP93XX_WATCHDOG
209 tristate "EP93xx Watchdog"
210 depends on ARCH_EP93XX
211 select WATCHDOG_CORE
212 help
213 Say Y here if to include support for the watchdog timer
214 embedded in the Cirrus Logic EP93xx family of devices.
215
216 To compile this driver as a module, choose M here: the
217 module will be called ep93xx_wdt.
218
219 config OMAP_WATCHDOG
220 tristate "OMAP Watchdog"
221 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
222 help
223 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
224 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
225
226 config PNX4008_WATCHDOG
227 tristate "PNX4008 and LPC32XX Watchdog"
228 depends on ARCH_PNX4008 || ARCH_LPC32XX
229 select WATCHDOG_CORE
230 help
231 Say Y here if to include support for the watchdog timer
232 in the PNX4008 or LPC32XX processor.
233 This driver can be built as a module by choosing M. The module
234 will be called pnx4008_wdt.
235
236 Say N if you are unsure.
237
238 config IOP_WATCHDOG
239 tristate "IOP Watchdog"
240 depends on PLAT_IOP
241 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
242 help
243 Say Y here if to include support for the watchdog timer
244 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
245 be built as a module by choosing M. The module will
246 be called iop_wdt.
247
248 Note: The IOP13XX watchdog does an Internal Bus Reset which will
249 affect both cores and the peripherals of the IOP. The ATU-X
250 and/or ATUe configuration registers will remain intact, but if
251 operating as an Root Complex and/or Central Resource, the PCI-X
252 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
253
254 config DAVINCI_WATCHDOG
255 tristate "DaVinci watchdog"
256 depends on ARCH_DAVINCI
257 help
258 Say Y here if to include support for the watchdog timer
259 in the DaVinci DM644x/DM646x processors.
260 To compile this driver as a module, choose M here: the
261 module will be called davinci_wdt.
262
263 NOTE: once enabled, this timer cannot be disabled.
264 Say N if you are unsure.
265
266 config ORION_WATCHDOG
267 tristate "Orion watchdog"
268 depends on ARCH_ORION5X || ARCH_KIRKWOOD
269 help
270 Say Y here if to include support for the watchdog timer
271 in the Marvell Orion5x and Kirkwood ARM SoCs.
272 To compile this driver as a module, choose M here: the
273 module will be called orion_wdt.
274
275 config COH901327_WATCHDOG
276 bool "ST-Ericsson COH 901 327 watchdog"
277 depends on ARCH_U300
278 default y if MACH_U300
279 select WATCHDOG_CORE
280 help
281 Say Y here to include Watchdog timer support for the
282 watchdog embedded into the ST-Ericsson U300 series platforms.
283 This watchdog is used to reset the system and thus cannot be
284 compiled as a module.
285
286 config TWL4030_WATCHDOG
287 tristate "TWL4030 Watchdog"
288 depends on TWL4030_CORE
289 help
290 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
291 watchdog timer support for TWL4030 chips.
292
293 config STMP3XXX_WATCHDOG
294 tristate "Freescale STMP3XXX watchdog"
295 depends on ARCH_STMP3XXX
296 help
297 Say Y here if to include support for the watchdog timer
298 for the Sigmatel STMP37XX/378X SoC.
299 To compile this driver as a module, choose M here: the
300 module will be called stmp3xxx_wdt.
301
302 config NUC900_WATCHDOG
303 tristate "Nuvoton NUC900 watchdog"
304 depends on ARCH_W90X900
305 help
306 Say Y here if to include support for the watchdog timer
307 for the Nuvoton NUC900 series SoCs.
308 To compile this driver as a module, choose M here: the
309 module will be called nuc900_wdt.
310
311 config TS72XX_WATCHDOG
312 tristate "TS-72XX SBC Watchdog"
313 depends on MACH_TS72XX
314 help
315 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
316 watchdog timer implemented in a external CPLD chip. Say Y here
317 if you want to support for the watchdog timer on TS-72XX boards.
318
319 To compile this driver as a module, choose M here: the
320 module will be called ts72xx_wdt.
321
322 config MAX63XX_WATCHDOG
323 tristate "Max63xx watchdog"
324 depends on ARM && HAS_IOMEM
325 select WATCHDOG_CORE
326 help
327 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
328
329 config IMX2_WDT
330 tristate "IMX2+ Watchdog"
331 depends on IMX_HAVE_PLATFORM_IMX2_WDT
332 help
333 This is the driver for the hardware watchdog
334 on the Freescale IMX2 and later processors.
335 If you have one of these processors and wish to have
336 watchdog support enabled, say Y, otherwise say N.
337
338 To compile this driver as a module, choose M here: the
339 module will be called imx2_wdt.
340
341 # AVR32 Architecture
342
343 config AT32AP700X_WDT
344 tristate "AT32AP700x watchdog"
345 depends on CPU_AT32AP700X
346 help
347 Watchdog timer embedded into AT32AP700x devices. This will reboot
348 your system when the timeout is reached.
349
350 # BLACKFIN Architecture
351
352 config BFIN_WDT
353 tristate "Blackfin On-Chip Watchdog Timer"
354 depends on BLACKFIN
355 ---help---
356 If you say yes here you will get support for the Blackfin On-Chip
357 Watchdog Timer. If you have one of these processors and wish to
358 have watchdog support enabled, say Y, otherwise say N.
359
360 To compile this driver as a module, choose M here: the
361 module will be called bfin_wdt.
362
363 # CRIS Architecture
364
365 # FRV Architecture
366
367 # H8300 Architecture
368
369 # X86 (i386 + ia64 + x86_64) Architecture
370
371 config ACQUIRE_WDT
372 tristate "Acquire SBC Watchdog Timer"
373 depends on X86
374 ---help---
375 This is the driver for the hardware watchdog on Single Board
376 Computers produced by Acquire Inc (and others). This watchdog
377 simply watches your kernel to make sure it doesn't freeze, and if
378 it does, it reboots your computer after a certain amount of time.
379
380 To compile this driver as a module, choose M here: the
381 module will be called acquirewdt.
382
383 Most people will say N.
384
385 config ADVANTECH_WDT
386 tristate "Advantech SBC Watchdog Timer"
387 depends on X86
388 help
389 If you are configuring a Linux kernel for the Advantech single-board
390 computer, say `Y' here to support its built-in watchdog timer
391 feature. More information can be found at
392 <http://www.advantech.com.tw/products/>
393
394 config ALIM1535_WDT
395 tristate "ALi M1535 PMU Watchdog Timer"
396 depends on X86 && PCI
397 ---help---
398 This is the driver for the hardware watchdog on the ALi M1535 PMU.
399
400 To compile this driver as a module, choose M here: the
401 module will be called alim1535_wdt.
402
403 Most people will say N.
404
405 config ALIM7101_WDT
406 tristate "ALi M7101 PMU Computer Watchdog"
407 depends on PCI
408 help
409 This is the driver for the hardware watchdog on the ALi M7101 PMU
410 as used in the x86 Cobalt servers and also found in some
411 SPARC Netra servers too.
412
413 To compile this driver as a module, choose M here: the
414 module will be called alim7101_wdt.
415
416 Most people will say N.
417
418 config F71808E_WDT
419 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
420 depends on X86 && EXPERIMENTAL
421 help
422 This is the driver for the hardware watchdog on the Fintek
423 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
424
425 You can compile this driver directly into the kernel, or use
426 it as a module. The module will be called f71808e_wdt.
427
428 config SP5100_TCO
429 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
430 depends on X86 && PCI
431 ---help---
432 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
433 (Total Cost of Ownership) timer is a watchdog timer that will reboot
434 the machine after its expiration. The expiration time can be
435 configured with the "heartbeat" parameter.
436
437 To compile this driver as a module, choose M here: the
438 module will be called sp5100_tco.
439
440 config GEODE_WDT
441 tristate "AMD Geode CS5535/CS5536 Watchdog"
442 depends on CS5535_MFGPT
443 help
444 This driver enables a watchdog capability built into the
445 CS5535/CS5536 companion chips for the AMD Geode GX and LX
446 processors. This watchdog watches your kernel to make sure
447 it doesn't freeze, and if it does, it reboots your computer after
448 a certain amount of time.
449
450 You can compile this driver directly into the kernel, or use
451 it as a module. The module will be called geodewdt.
452
453 config SC520_WDT
454 tristate "AMD Elan SC520 processor Watchdog"
455 depends on X86
456 help
457 This is the driver for the hardware watchdog built in to the
458 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
459 This watchdog simply watches your kernel to make sure it doesn't
460 freeze, and if it does, it reboots your computer after a certain
461 amount of time.
462
463 You can compile this driver directly into the kernel, or use
464 it as a module. The module will be called sc520_wdt.
465
466 config SBC_FITPC2_WATCHDOG
467 tristate "Compulab SBC-FITPC2 watchdog"
468 depends on X86
469 ---help---
470 This is the driver for the built-in watchdog timer on the fit-PC2,
471 fit-PC2i, CM-iAM single-board computers made by Compulab.
472
473 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
474 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
475
476 Entering BIOS setup temporary disables watchdog operation regardless to current state,
477 so system will not be restarted while user in BIOS setup.
478
479 Once watchdog was enabled the system will be restarted every
480 "Watchdog Timer Value" period, so to prevent it user can restart or
481 disable the watchdog.
482
483 To compile this driver as a module, choose M here: the
484 module will be called sbc_fitpc2_wdt.
485
486 Most people will say N.
487
488 config EUROTECH_WDT
489 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
490 depends on X86
491 help
492 Enable support for the watchdog timer on the Eurotech CPU-1220 and
493 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
494 information are at <http://www.eurotech.it/>.
495
496 config IB700_WDT
497 tristate "IB700 SBC Watchdog Timer"
498 depends on X86
499 ---help---
500 This is the driver for the hardware watchdog on the IB700 Single
501 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
502 simply watches your kernel to make sure it doesn't freeze, and if
503 it does, it reboots your computer after a certain amount of time.
504
505 This driver is like the WDT501 driver but for slightly different hardware.
506
507 To compile this driver as a module, choose M here: the
508 module will be called ib700wdt.
509
510 Most people will say N.
511
512 config IBMASR
513 tristate "IBM Automatic Server Restart"
514 depends on X86
515 help
516 This is the driver for the IBM Automatic Server Restart watchdog
517 timer built-in into some eServer xSeries machines.
518
519 To compile this driver as a module, choose M here: the
520 module will be called ibmasr.
521
522 config WAFER_WDT
523 tristate "ICP Single Board Computer Watchdog Timer"
524 depends on X86
525 help
526 This is a driver for the hardware watchdog on the ICP Single
527 Board Computer. This driver is working on (at least) the following
528 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
529
530 To compile this driver as a module, choose M here: the
531 module will be called wafer5823wdt.
532
533 config I6300ESB_WDT
534 tristate "Intel 6300ESB Timer/Watchdog"
535 depends on PCI
536 ---help---
537 Hardware driver for the watchdog timer built into the Intel
538 6300ESB controller hub.
539
540 To compile this driver as a module, choose M here: the
541 module will be called i6300esb.
542
543 config IE6XX_WDT
544 tristate "Intel Atom E6xx Watchdog"
545 depends on X86 && PCI
546 select WATCHDOG_CORE
547 select MFD_CORE
548 select LPC_SCH
549 ---help---
550 Hardware driver for the watchdog timer built into the Intel
551 Atom E6XX (TunnelCreek) processor.
552
553 To compile this driver as a module, choose M here: the
554 module will be called ie6xx_wdt.
555
556 config INTEL_SCU_WATCHDOG
557 bool "Intel SCU Watchdog for Mobile Platforms"
558 depends on X86_MRST
559 ---help---
560 Hardware driver for the watchdog time built into the Intel SCU
561 for Intel Mobile Platforms.
562
563 To compile this driver as a module, choose M here.
564
565 config ITCO_WDT
566 tristate "Intel TCO Timer/Watchdog"
567 depends on (X86 || IA64) && PCI
568 select LPC_ICH
569 ---help---
570 Hardware driver for the intel TCO timer based watchdog devices.
571 These drivers are included in the Intel 82801 I/O Controller
572 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
573 controller hub.
574
575 The TCO (Total Cost of Ownership) timer is a watchdog timer
576 that will reboot the machine after its second expiration. The
577 expiration time can be configured with the "heartbeat" parameter.
578
579 On some motherboards the driver may fail to reset the chipset's
580 NO_REBOOT flag which prevents the watchdog from rebooting the
581 machine. If this is the case you will get a kernel message like
582 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
583
584 To compile this driver as a module, choose M here: the
585 module will be called iTCO_wdt.
586
587 config ITCO_VENDOR_SUPPORT
588 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
589 depends on ITCO_WDT
590 ---help---
591 Add vendor specific support to the intel TCO timer based watchdog
592 devices. At this moment we only have additional support for some
593 SuperMicro Inc. motherboards.
594
595 config IT8712F_WDT
596 tristate "IT8712F (Smart Guardian) Watchdog Timer"
597 depends on X86
598 ---help---
599 This is the driver for the built-in watchdog timer on the IT8712F
600 Super I/0 chipset used on many motherboards.
601
602 If the driver does not work, then make sure that the game port in
603 the BIOS is enabled.
604
605 To compile this driver as a module, choose M here: the
606 module will be called it8712f_wdt.
607
608 config IT87_WDT
609 tristate "IT87 Watchdog Timer"
610 depends on X86 && EXPERIMENTAL
611 ---help---
612 This is the driver for the hardware watchdog on the ITE IT8702,
613 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
614 Super I/O chips.
615
616 If the driver does not work, then make sure that the game port in
617 the BIOS is enabled.
618
619 This watchdog simply watches your kernel to make sure it doesn't
620 freeze, and if it does, it reboots your computer after a certain
621 amount of time.
622
623 To compile this driver as a module, choose M here: the module will
624 be called it87_wdt.
625
626 config HP_WATCHDOG
627 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
628 depends on X86 && PCI
629 help
630 A software monitoring watchdog and NMI sourcing driver. This driver
631 will detect lockups and provide a stack trace. This is a driver that
632 will only load on an HP ProLiant system with a minimum of iLO2 support.
633 To compile this driver as a module, choose M here: the module will be
634 called hpwdt.
635
636 config HPWDT_NMI_DECODING
637 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
638 depends on HP_WATCHDOG
639 default y
640 help
641 When an NMI occurs this feature will make the necessary BIOS calls to
642 log the cause of the NMI.
643
644 config SC1200_WDT
645 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
646 depends on X86
647 help
648 This is a driver for National Semiconductor PC87307/PC97307 hardware
649 watchdog cards as found on the SC1200. This watchdog is mainly used
650 for power management purposes and can be used to power down the device
651 during inactivity periods (includes interrupt activity monitoring).
652
653 To compile this driver as a module, choose M here: the
654 module will be called sc1200wdt.
655
656 Most people will say N.
657
658 config SCx200_WDT
659 tristate "National Semiconductor SCx200 Watchdog"
660 depends on SCx200 && PCI
661 help
662 Enable the built-in watchdog timer support on the National
663 Semiconductor SCx200 processors.
664
665 If compiled as a module, it will be called scx200_wdt.
666
667 config PC87413_WDT
668 tristate "NS PC87413 watchdog"
669 depends on X86
670 ---help---
671 This is the driver for the hardware watchdog on the PC87413 chipset
672 This watchdog simply watches your kernel to make sure it doesn't
673 freeze, and if it does, it reboots your computer after a certain
674 amount of time.
675
676 To compile this driver as a module, choose M here: the
677 module will be called pc87413_wdt.
678
679 Most people will say N.
680
681 config NV_TCO
682 tristate "nVidia TCO Timer/Watchdog"
683 depends on X86 && PCI
684 ---help---
685 Hardware driver for the TCO timer built into the nVidia Hub family
686 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
687 watchdog timer that will reboot the machine after its second
688 expiration. The expiration time can be configured with the
689 "heartbeat" parameter.
690
691 On some motherboards the driver may fail to reset the chipset's
692 NO_REBOOT flag which prevents the watchdog from rebooting the
693 machine. If this is the case you will get a kernel message like
694 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
695
696 To compile this driver as a module, choose M here: the
697 module will be called nv_tco.
698
699 config RDC321X_WDT
700 tristate "RDC R-321x SoC watchdog"
701 depends on X86_RDC321X
702 help
703 This is the driver for the built in hardware watchdog
704 in the RDC R-321x SoC.
705
706 To compile this driver as a module, choose M here: the
707 module will be called rdc321x_wdt.
708
709 config 60XX_WDT
710 tristate "SBC-60XX Watchdog Timer"
711 depends on X86
712 help
713 This driver can be used with the watchdog timer found on some
714 single board computers, namely the 6010 PII based computer.
715 It may well work with other cards. It reads port 0x443 to enable
716 and re-set the watchdog timer, and reads port 0x45 to disable
717 the watchdog. If you have a card that behave in similar ways,
718 you can probably make this driver work with your card as well.
719
720 You can compile this driver directly into the kernel, or use
721 it as a module. The module will be called sbc60xxwdt.
722
723 config SBC8360_WDT
724 tristate "SBC8360 Watchdog Timer"
725 depends on X86
726 ---help---
727
728 This is the driver for the hardware watchdog on the SBC8360 Single
729 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
730
731 To compile this driver as a module, choose M here: the
732 module will be called sbc8360.
733
734 Most people will say N.
735
736 config SBC7240_WDT
737 tristate "SBC Nano 7240 Watchdog Timer"
738 depends on X86_32 && !UML
739 ---help---
740 This is the driver for the hardware watchdog found on the IEI
741 single board computers EPIC Nano 7240 (and likely others). This
742 watchdog simply watches your kernel to make sure it doesn't freeze,
743 and if it does, it reboots your computer after a certain amount of
744 time.
745
746 To compile this driver as a module, choose M here: the
747 module will be called sbc7240_wdt.
748
749 config CPU5_WDT
750 tristate "SMA CPU5 Watchdog"
751 depends on X86
752 ---help---
753 TBD.
754 To compile this driver as a module, choose M here: the
755 module will be called cpu5wdt.
756
757 config SMSC_SCH311X_WDT
758 tristate "SMSC SCH311X Watchdog Timer"
759 depends on X86
760 ---help---
761 This is the driver for the hardware watchdog timer on the
762 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
763 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
764 serial ports).
765
766 To compile this driver as a module, choose M here: the
767 module will be called sch311x_wdt.
768
769 config SMSC37B787_WDT
770 tristate "Winbond SMsC37B787 Watchdog Timer"
771 depends on X86
772 ---help---
773 This is the driver for the hardware watchdog component on the
774 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
775 from Vision Systems and maybe others.
776
777 This watchdog simply watches your kernel to make sure it doesn't
778 freeze, and if it does, it reboots your computer after a certain
779 amount of time.
780
781 Usually a userspace daemon will notify the kernel WDT driver that
782 userspace is still alive, at regular intervals.
783
784 To compile this driver as a module, choose M here: the
785 module will be called smsc37b787_wdt.
786
787 Most people will say N.
788
789 config VIA_WDT
790 tristate "VIA Watchdog Timer"
791 depends on X86 && PCI
792 select WATCHDOG_CORE
793 ---help---
794 This is the driver for the hardware watchdog timer on VIA
795 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
796
797 To compile this driver as a module, choose M here; the module
798 will be called via_wdt.
799
800 Most people will say N.
801
802 config W83627HF_WDT
803 tristate "W83627HF/W83627DHG Watchdog Timer"
804 depends on X86
805 ---help---
806 This is the driver for the hardware watchdog on the W83627HF chipset
807 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
808 (and likely others). The driver also supports the W83627DHG chip.
809 This watchdog simply watches your kernel to make sure it doesn't
810 freeze, and if it does, it reboots your computer after a certain
811 amount of time.
812
813 To compile this driver as a module, choose M here: the
814 module will be called w83627hf_wdt.
815
816 Most people will say N.
817
818 config W83697HF_WDT
819 tristate "W83697HF/W83697HG Watchdog Timer"
820 depends on X86
821 ---help---
822 This is the driver for the hardware watchdog on the W83697HF/HG
823 chipset as used in Dedibox/VIA motherboards (and likely others).
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 w83697hf_wdt.
830
831 Most people will say N.
832
833 config W83697UG_WDT
834 tristate "W83697UG/W83697UF Watchdog Timer"
835 depends on X86
836 ---help---
837 This is the driver for the hardware watchdog on the W83697UG/UF
838 chipset as used in MSI Fuzzy CX700 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 w83697ug_wdt.
845
846 Most people will say N.
847
848 config W83877F_WDT
849 tristate "W83877F (EMACS) Watchdog Timer"
850 depends on X86
851 ---help---
852 This is the driver for the hardware watchdog on the W83877F chipset
853 as used in EMACS PC-104 motherboards (and likely others). This
854 watchdog simply watches your kernel to make sure it doesn't freeze,
855 and if it does, it reboots your computer after a certain amount of
856 time.
857
858 To compile this driver as a module, choose M here: the
859 module will be called w83877f_wdt.
860
861 Most people will say N.
862
863 config W83977F_WDT
864 tristate "W83977F (PCM-5335) Watchdog Timer"
865 depends on X86
866 ---help---
867 This is the driver for the hardware watchdog on the W83977F I/O chip
868 as used in AAEON's PCM-5335 SBC (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 w83977f_wdt.
875
876 config MACHZ_WDT
877 tristate "ZF MachZ Watchdog"
878 depends on X86
879 ---help---
880 If you are using a ZF Micro MachZ processor, say Y here, otherwise
881 N. This is the driver for the watchdog timer built-in on that
882 processor using ZF-Logic interface. This watchdog simply watches
883 your kernel to make sure it doesn't freeze, and if it does, it
884 reboots your computer after a certain amount of time.
885
886 To compile this driver as a module, choose M here: the
887 module will be called machzwd.
888
889 config SBC_EPX_C3_WATCHDOG
890 tristate "Winsystems SBC EPX-C3 watchdog"
891 depends on X86
892 ---help---
893 This is the driver for the built-in watchdog timer on the EPX-C3
894 Single-board computer made by Winsystems, Inc.
895
896 *Note*: This hardware watchdog is not probeable and thus there
897 is no way to know if writing to its IO address will corrupt
898 your system or have any real effect. The only way to be sure
899 that this driver does what you want is to make sure you
900 are running it on an EPX-C3 from Winsystems with the watchdog
901 timer at IO address 0x1ee and 0x1ef. It will write to both those
902 IO ports. Basically, the assumption is made that if you compile
903 this driver into your kernel and/or load it as a module, that you
904 know what you are doing and that you are in fact running on an
905 EPX-C3 board!
906
907 To compile this driver as a module, choose M here: the
908 module will be called sbc_epx_c3.
909
910 # M32R Architecture
911
912 # M68K Architecture
913
914 config M54xx_WATCHDOG
915 tristate "MCF54xx watchdog support"
916 depends on M548x
917 help
918 To compile this driver as a module, choose M here: the
919 module will be called m54xx_wdt.
920
921 # MicroBlaze Architecture
922
923 config XILINX_WATCHDOG
924 tristate "Xilinx Watchdog timer"
925 depends on MICROBLAZE
926 ---help---
927 Watchdog driver for the xps_timebase_wdt ip core.
928
929 IMPORTANT: The xps_timebase_wdt parent must have the property
930 "clock-frequency" at device tree.
931
932 To compile this driver as a module, choose M here: the
933 module will be called of_xilinx_wdt.
934
935 # MIPS Architecture
936
937 config ATH79_WDT
938 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
939 depends on ATH79
940 help
941 Hardware driver for the built-in watchdog timer on the Atheros
942 AR71XX/AR724X/AR913X SoCs.
943
944 config BCM47XX_WDT
945 tristate "Broadcom BCM47xx Watchdog Timer"
946 depends on BCM47XX
947 help
948 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
949
950 config RC32434_WDT
951 tristate "IDT RC32434 SoC Watchdog Timer"
952 depends on MIKROTIK_RB532
953 help
954 Hardware driver for the IDT RC32434 SoC built-in
955 watchdog timer.
956
957 To compile this driver as a module, choose M here: the
958 module will be called rc32434_wdt.
959
960 config INDYDOG
961 tristate "Indy/I2 Hardware Watchdog"
962 depends on SGI_HAS_INDYDOG
963 help
964 Hardware driver for the Indy's/I2's watchdog. This is a
965 watchdog timer that will reboot the machine after a 60 second
966 timer expired and no process has written to /dev/watchdog during
967 that time.
968
969 config JZ4740_WDT
970 tristate "Ingenic jz4740 SoC hardware watchdog"
971 depends on MACH_JZ4740
972 select WATCHDOG_CORE
973 help
974 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
975
976 config WDT_MTX1
977 tristate "MTX-1 Hardware Watchdog"
978 depends on MIPS_MTX1
979 help
980 Hardware driver for the MTX-1 boards. This is a watchdog timer that
981 will reboot the machine after a 100 seconds timer expired.
982
983 config PNX833X_WDT
984 tristate "PNX833x Hardware Watchdog"
985 depends on SOC_PNX8335
986 help
987 Hardware driver for the PNX833x's watchdog. This is a
988 watchdog timer that will reboot the machine after a programmable
989 timer has expired and no process has written to /dev/watchdog during
990 that time.
991
992 config SIBYTE_WDOG
993 tristate "Sibyte SoC hardware watchdog"
994 depends on CPU_SB1
995 help
996 Watchdog driver for the built in watchdog hardware in Sibyte
997 SoC processors. There are apparently two watchdog timers
998 on such processors; this driver supports only the first one,
999 because currently Linux only supports exporting one watchdog
1000 to userspace.
1001
1002 To compile this driver as a loadable module, choose M here.
1003 The module will be called sb_wdog.
1004
1005 config AR7_WDT
1006 tristate "TI AR7 Watchdog Timer"
1007 depends on AR7
1008 help
1009 Hardware driver for the TI AR7 Watchdog Timer.
1010
1011 config TXX9_WDT
1012 tristate "Toshiba TXx9 Watchdog Timer"
1013 depends on CPU_TX39XX || CPU_TX49XX
1014 select WATCHDOG_CORE
1015 help
1016 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1017
1018 config OCTEON_WDT
1019 tristate "Cavium OCTEON SOC family Watchdog Timer"
1020 depends on CPU_CAVIUM_OCTEON
1021 default y
1022 select EXPORT_UASM if OCTEON_WDT = m
1023 help
1024 Hardware driver for OCTEON's on chip watchdog timer.
1025 Enables the watchdog for all cores running Linux. It
1026 installs a NMI handler and pokes the watchdog based on an
1027 interrupt. On first expiration of the watchdog, the
1028 interrupt handler pokes it. The second expiration causes an
1029 NMI that prints a message. The third expiration causes a
1030 global soft reset.
1031
1032 When userspace has /dev/watchdog open, no poking is done
1033 from the first interrupt, it is then only poked when the
1034 device is written.
1035
1036 config BCM63XX_WDT
1037 tristate "Broadcom BCM63xx hardware watchdog"
1038 depends on BCM63XX
1039 help
1040 Watchdog driver for the built in watchdog hardware in Broadcom
1041 BCM63xx SoC.
1042
1043 To compile this driver as a loadable module, choose M here.
1044 The module will be called bcm63xx_wdt.
1045
1046 config LANTIQ_WDT
1047 tristate "Lantiq SoC watchdog"
1048 depends on LANTIQ
1049 help
1050 Hardware driver for the Lantiq SoC Watchdog Timer.
1051
1052 # PARISC Architecture
1053
1054 # POWERPC Architecture
1055
1056 config GEF_WDT
1057 tristate "GE Watchdog Timer"
1058 depends on GE_FPGA
1059 ---help---
1060 Watchdog timer found in a number of GE single board computers.
1061
1062 config MPC5200_WDT
1063 bool "MPC52xx Watchdog Timer"
1064 depends on PPC_MPC52xx
1065 help
1066 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1067
1068 config 8xxx_WDT
1069 tristate "MPC8xxx Platform Watchdog Timer"
1070 depends on PPC_8xx || PPC_83xx || PPC_86xx
1071 help
1072 This driver is for a SoC level watchdog that exists on some
1073 Freescale PowerPC processors. So far this driver supports:
1074 - MPC8xx watchdogs
1075 - MPC83xx watchdogs
1076 - MPC86xx watchdogs
1077
1078 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1079
1080 config MV64X60_WDT
1081 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1082 depends on MV64X60
1083
1084 config PIKA_WDT
1085 tristate "PIKA FPGA Watchdog"
1086 depends on WARP
1087 default y
1088 help
1089 This enables the watchdog in the PIKA FPGA. Currently used on
1090 the Warp platform.
1091
1092 config BOOKE_WDT
1093 tristate "PowerPC Book-E Watchdog Timer"
1094 depends on BOOKE || 4xx
1095 ---help---
1096 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1097 MPC85xx SOCs and the IBM PowerPC 440.
1098
1099 Please see Documentation/watchdog/watchdog-api.txt for
1100 more information.
1101
1102 config BOOKE_WDT_DEFAULT_TIMEOUT
1103 int "PowerPC Book-E Watchdog Timer Default Timeout"
1104 depends on BOOKE_WDT
1105 default 38 if FSL_BOOKE
1106 range 0 63 if FSL_BOOKE
1107 default 3 if !FSL_BOOKE
1108 range 0 3 if !FSL_BOOKE
1109 help
1110 Select the default watchdog timer period to be used by the PowerPC
1111 Book-E watchdog driver. A watchdog "event" occurs when the bit
1112 position represented by this number transitions from zero to one.
1113
1114 For Freescale Book-E processors, this is a number between 0 and 63.
1115 For other Book-E processors, this is a number between 0 and 3.
1116
1117 The value can be overridden by the wdt_period command-line parameter.
1118
1119 # PPC64 Architecture
1120
1121 config WATCHDOG_RTAS
1122 tristate "RTAS watchdog"
1123 depends on PPC_RTAS
1124 help
1125 This driver adds watchdog support for the RTAS watchdog.
1126
1127 To compile this driver as a module, choose M here. The module
1128 will be called wdrtas.
1129
1130 # S390 Architecture
1131
1132 config ZVM_WATCHDOG
1133 tristate "z/VM Watchdog Timer"
1134 depends on S390
1135 help
1136 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1137 provide a virtual watchdog timer to their guest that cause a
1138 user define Control Program command to be executed after a
1139 timeout.
1140
1141 To compile this driver as a module, choose M here. The module
1142 will be called vmwatchdog.
1143
1144 # SUPERH (sh + sh64) Architecture
1145
1146 config SH_WDT
1147 tristate "SuperH Watchdog"
1148 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1149 select WATCHDOG_CORE
1150 help
1151 This driver adds watchdog support for the integrated watchdog in the
1152 SuperH processors. If you have one of these processors and wish
1153 to have watchdog support enabled, say Y, otherwise say N.
1154
1155 As a side note, saying Y here will automatically boost HZ to 1000
1156 so that the timer has a chance to clear the overflow counter. On
1157 slower systems (such as the SH-2 and SH-3) this will likely yield
1158 some performance issues. As such, the WDT should be avoided here
1159 unless it is absolutely necessary.
1160
1161 To compile this driver as a module, choose M here: the
1162 module will be called shwdt.
1163
1164 # SPARC Architecture
1165
1166 # SPARC64 Architecture
1167
1168 config WATCHDOG_CP1XXX
1169 tristate "CP1XXX Hardware Watchdog support"
1170 depends on SPARC64 && PCI
1171 ---help---
1172 This is the driver for the hardware watchdog timers present on
1173 Sun Microsystems CompactPCI models CP1400 and CP1500.
1174
1175 To compile this driver as a module, choose M here: the
1176 module will be called cpwatchdog.
1177
1178 If you do not have a CompactPCI model CP1400 or CP1500, or
1179 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1180 you should say N to this option.
1181
1182 config WATCHDOG_RIO
1183 tristate "RIO Hardware Watchdog support"
1184 depends on SPARC64 && PCI
1185 help
1186 Say Y here to support the hardware watchdog capability on Sun RIO
1187 machines. The watchdog timeout period is normally one minute but
1188 can be changed with a boot-time parameter.
1189
1190 # XTENSA Architecture
1191
1192 # Xen Architecture
1193
1194 config XEN_WDT
1195 tristate "Xen Watchdog support"
1196 depends on XEN
1197 help
1198 Say Y here to support the hypervisor watchdog capability provided
1199 by Xen 4.0 and newer. The watchdog timeout period is normally one
1200 minute but can be changed with a boot-time parameter.
1201
1202 config UML_WATCHDOG
1203 tristate "UML watchdog"
1204 depends on UML
1205
1206 #
1207 # ISA-based Watchdog Cards
1208 #
1209
1210 comment "ISA-based Watchdog Cards"
1211 depends on ISA
1212
1213 config PCWATCHDOG
1214 tristate "Berkshire Products ISA-PC Watchdog"
1215 depends on ISA
1216 ---help---
1217 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1218 This card simply watches your kernel to make sure it doesn't freeze,
1219 and if it does, it reboots your computer after a certain amount of
1220 time. This driver is like the WDT501 driver but for different
1221 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1222 watchdog cards can be ordered from <http://www.berkprod.com/>.
1223
1224 To compile this driver as a module, choose M here: the
1225 module will be called pcwd.
1226
1227 Most people will say N.
1228
1229 config MIXCOMWD
1230 tristate "Mixcom Watchdog"
1231 depends on ISA
1232 ---help---
1233 This is a driver for the Mixcom hardware watchdog cards. This
1234 watchdog simply watches your kernel to make sure it doesn't freeze,
1235 and if it does, it reboots your computer after a certain amount of
1236 time.
1237
1238 To compile this driver as a module, choose M here: the
1239 module will be called mixcomwd.
1240
1241 Most people will say N.
1242
1243 config WDT
1244 tristate "WDT Watchdog timer"
1245 depends on ISA
1246 ---help---
1247 If you have a WDT500P or WDT501P watchdog board, say Y here,
1248 otherwise N. It is not possible to probe for this board, which means
1249 that you have to inform the kernel about the IO port and IRQ that
1250 is needed (you can do this via the io and irq parameters)
1251
1252 To compile this driver as a module, choose M here: the
1253 module will be called wdt.
1254
1255 #
1256 # PCI-based Watchdog Cards
1257 #
1258
1259 comment "PCI-based Watchdog Cards"
1260 depends on PCI
1261
1262 config PCIPCWATCHDOG
1263 tristate "Berkshire Products PCI-PC Watchdog"
1264 depends on PCI
1265 ---help---
1266 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1267 This card simply watches your kernel to make sure it doesn't freeze,
1268 and if it does, it reboots your computer after a certain amount of
1269 time. The card can also monitor the internal temperature of the PC.
1270 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1271
1272 To compile this driver as a module, choose M here: the
1273 module will be called pcwd_pci.
1274
1275 Most people will say N.
1276
1277 config WDTPCI
1278 tristate "PCI-WDT500/501 Watchdog timer"
1279 depends on PCI
1280 ---help---
1281 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1282
1283 If you have a PCI-WDT501 watchdog board then you can enable the
1284 temperature sensor by setting the type parameter to 501.
1285
1286 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1287 can do this via the tachometer parameter. Only do this if you have a
1288 fan tachometer actually set up.
1289
1290 To compile this driver as a module, choose M here: the
1291 module will be called wdt_pci.
1292
1293 #
1294 # USB-based Watchdog Cards
1295 #
1296
1297 comment "USB-based Watchdog Cards"
1298 depends on USB
1299
1300 config USBPCWATCHDOG
1301 tristate "Berkshire Products USB-PC Watchdog"
1302 depends on USB
1303 ---help---
1304 This is the driver for the Berkshire Products USB-PC Watchdog card.
1305 This card simply watches your kernel to make sure it doesn't freeze,
1306 and if it does, it reboots your computer after a certain amount of
1307 time. The card can also monitor the internal temperature of the PC.
1308 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1309
1310 To compile this driver as a module, choose M here: the
1311 module will be called pcwd_usb.
1312
1313 Most people will say N.
1314
1315 endif # WATCHDOG