Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64...
[deliverable/linux.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 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
79 config DA9055_WATCHDOG
80 tristate "Dialog Semiconductor DA9055 Watchdog"
81 depends on MFD_DA9055
82 select WATCHDOG_CORE
83 help
84 If you say yes here you get support for watchdog on the Dialog
85 Semiconductor DA9055 PMIC.
86
87 This driver can also be built as a module. If so, the module
88 will be called da9055_wdt.
89
90 config DA9063_WATCHDOG
91 tristate "Dialog DA9063 Watchdog"
92 depends on MFD_DA9063
93 select WATCHDOG_CORE
94 help
95 Support for the watchdog in the DA9063 PMIC.
96
97 This driver can be built as a module. The module name is da9063_wdt.
98
99 config GPIO_WATCHDOG
100 tristate "Watchdog device controlled through GPIO-line"
101 depends on OF_GPIO
102 select WATCHDOG_CORE
103 help
104 If you say yes here you get support for watchdog device
105 controlled through GPIO-line.
106
107 config MENF21BMC_WATCHDOG
108 tristate "MEN 14F021P00 BMC Watchdog"
109 depends on MFD_MENF21BMC
110 select WATCHDOG_CORE
111 help
112 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
113
114 This driver can also be built as a module. If so the module
115 will be called menf21bmc_wdt.
116
117 config WM831X_WATCHDOG
118 tristate "WM831x watchdog"
119 depends on MFD_WM831X
120 select WATCHDOG_CORE
121 help
122 Support for the watchdog in the WM831x AudioPlus PMICs. When
123 the watchdog triggers the system will be reset.
124
125 config WM8350_WATCHDOG
126 tristate "WM8350 watchdog"
127 depends on MFD_WM8350
128 select WATCHDOG_CORE
129 help
130 Support for the watchdog in the WM8350 AudioPlus PMIC. When
131 the watchdog triggers the system will be reset.
132
133 config XILINX_WATCHDOG
134 tristate "Xilinx Watchdog timer"
135 depends on HAS_IOMEM
136 select WATCHDOG_CORE
137 help
138 Watchdog driver for the xps_timebase_wdt ip core.
139
140 To compile this driver as a module, choose M here: the
141 module will be called of_xilinx_wdt.
142
143 # ALPHA Architecture
144
145 # ARM Architecture
146
147 config ARM_SP805_WATCHDOG
148 tristate "ARM SP805 Watchdog"
149 depends on (ARM || ARM64) && ARM_AMBA
150 select WATCHDOG_CORE
151 help
152 ARM Primecell SP805 Watchdog timer. This will reboot your system when
153 the timeout is reached.
154
155 config AT91RM9200_WATCHDOG
156 tristate "AT91RM9200 watchdog"
157 depends on SOC_AT91RM9200 && MFD_SYSCON
158 help
159 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
160 system when the timeout is reached.
161
162 config AT91SAM9X_WATCHDOG
163 tristate "AT91SAM9X / AT91CAP9 watchdog"
164 depends on ARCH_AT91
165 select WATCHDOG_CORE
166 help
167 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
168 reboot your system when the timeout is reached.
169
170 config CADENCE_WATCHDOG
171 tristate "Cadence Watchdog Timer"
172 select WATCHDOG_CORE
173 help
174 Say Y here if you want to include support for the watchdog
175 timer in the Xilinx Zynq.
176
177 config 21285_WATCHDOG
178 tristate "DC21285 watchdog"
179 depends on FOOTBRIDGE
180 help
181 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
182 here if you wish to use this. Alternatively say M to compile the
183 driver as a module, which will be called wdt285.
184
185 This driver does not work on all machines. In particular, early CATS
186 boards have hardware problems that will cause the machine to simply
187 lock up if the watchdog fires.
188
189 "If in doubt, leave it out" - say N.
190
191 config 977_WATCHDOG
192 tristate "NetWinder WB83C977 watchdog"
193 depends on FOOTBRIDGE && ARCH_NETWINDER
194 help
195 Say Y here to include support for the WB977 watchdog included in
196 NetWinder machines. Alternatively say M to compile the driver as
197 a module, which will be called wdt977.
198
199 Not sure? It's safe to say N.
200
201 config IXP4XX_WATCHDOG
202 tristate "IXP4xx Watchdog"
203 depends on ARCH_IXP4XX
204 help
205 Say Y here if to include support for the watchdog timer
206 in the Intel IXP4xx network processors. This driver can
207 be built as a module by choosing M. The module will
208 be called ixp4xx_wdt.
209
210 Note: The internal IXP4xx watchdog does a soft CPU reset
211 which doesn't reset any peripherals. There are circumstances
212 where the watchdog will fail to reset the board correctly
213 (e.g., if the boot ROM is in an unreadable state).
214
215 Say N if you are unsure.
216
217 config KS8695_WATCHDOG
218 tristate "KS8695 watchdog"
219 depends on ARCH_KS8695
220 help
221 Watchdog timer embedded into KS8695 processor. This will reboot your
222 system when the timeout is reached.
223
224 config HAVE_S3C2410_WATCHDOG
225 bool
226 help
227 This will include watchdog timer support for Samsung SoCs. If
228 you want to include watchdog support for any machine, kindly
229 select this in the respective mach-XXXX/Kconfig file.
230
231 config S3C2410_WATCHDOG
232 tristate "S3C2410 Watchdog"
233 depends on HAVE_S3C2410_WATCHDOG
234 select WATCHDOG_CORE
235 select MFD_SYSCON if ARCH_EXYNOS5
236 help
237 Watchdog timer block in the Samsung SoCs. This will reboot
238 the system when the timer expires with the watchdog enabled.
239
240 The driver is limited by the speed of the system's PCLK
241 signal, so with reasonably fast systems (PCLK around 50-66MHz)
242 then watchdog intervals of over approximately 20seconds are
243 unavailable.
244
245 The driver can be built as a module by choosing M, and will
246 be called s3c2410_wdt
247
248 config SA1100_WATCHDOG
249 tristate "SA1100/PXA2xx watchdog"
250 depends on ARCH_SA1100 || ARCH_PXA
251 help
252 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
253 reboot your system when timeout is reached.
254
255 NOTE: once enabled, this timer cannot be disabled.
256
257 To compile this driver as a module, choose M here: the
258 module will be called sa1100_wdt.
259
260 config DW_WATCHDOG
261 tristate "Synopsys DesignWare watchdog"
262 depends on HAS_IOMEM
263 help
264 Say Y here if to include support for the Synopsys DesignWare
265 watchdog timer found in many chips.
266 To compile this driver as a module, choose M here: the
267 module will be called dw_wdt.
268
269 config EP93XX_WATCHDOG
270 tristate "EP93xx Watchdog"
271 depends on ARCH_EP93XX
272 select WATCHDOG_CORE
273 help
274 Say Y here if to include support for the watchdog timer
275 embedded in the Cirrus Logic EP93xx family of devices.
276
277 To compile this driver as a module, choose M here: the
278 module will be called ep93xx_wdt.
279
280 config OMAP_WATCHDOG
281 tristate "OMAP Watchdog"
282 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
283 select WATCHDOG_CORE
284 help
285 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
286 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
287
288 config PNX4008_WATCHDOG
289 tristate "LPC32XX Watchdog"
290 depends on ARCH_LPC32XX
291 select WATCHDOG_CORE
292 help
293 Say Y here if to include support for the watchdog timer
294 in the LPC32XX processor.
295 This driver can be built as a module by choosing M. The module
296 will be called pnx4008_wdt.
297
298 Say N if you are unsure.
299
300 config IOP_WATCHDOG
301 tristate "IOP Watchdog"
302 depends on ARCH_IOP13XX
303 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
304 help
305 Say Y here if to include support for the watchdog timer
306 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
307 be built as a module by choosing M. The module will
308 be called iop_wdt.
309
310 Note: The IOP13XX watchdog does an Internal Bus Reset which will
311 affect both cores and the peripherals of the IOP. The ATU-X
312 and/or ATUe configuration registers will remain intact, but if
313 operating as an Root Complex and/or Central Resource, the PCI-X
314 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
315
316 config DAVINCI_WATCHDOG
317 tristate "DaVinci watchdog"
318 depends on ARCH_DAVINCI || ARCH_KEYSTONE
319 select WATCHDOG_CORE
320 help
321 Say Y here if to include support for the watchdog timer
322 in the DaVinci DM644x/DM646x or Keystone processors.
323 To compile this driver as a module, choose M here: the
324 module will be called davinci_wdt.
325
326 NOTE: once enabled, this timer cannot be disabled.
327 Say N if you are unsure.
328
329 config ORION_WATCHDOG
330 tristate "Orion watchdog"
331 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
332 select WATCHDOG_CORE
333 help
334 Say Y here if to include support for the watchdog timer
335 in the Marvell Orion5x and Kirkwood ARM SoCs.
336 To compile this driver as a module, choose M here: the
337 module will be called orion_wdt.
338
339 config RN5T618_WATCHDOG
340 tristate "Ricoh RN5T618 watchdog"
341 depends on MFD_RN5T618
342 select WATCHDOG_CORE
343 help
344 If you say yes here you get support for watchdog on the Ricoh
345 RN5T618 PMIC.
346
347 This driver can also be built as a module. If so, the module
348 will be called rn5t618_wdt.
349
350 config SUNXI_WATCHDOG
351 tristate "Allwinner SoCs watchdog support"
352 depends on ARCH_SUNXI
353 select WATCHDOG_CORE
354 help
355 Say Y here to include support for the watchdog timer
356 in Allwinner SoCs.
357 To compile this driver as a module, choose M here: the
358 module will be called sunxi_wdt.
359
360 config COH901327_WATCHDOG
361 bool "ST-Ericsson COH 901 327 watchdog"
362 depends on ARCH_U300
363 default y if MACH_U300
364 select WATCHDOG_CORE
365 help
366 Say Y here to include Watchdog timer support for the
367 watchdog embedded into the ST-Ericsson U300 series platforms.
368 This watchdog is used to reset the system and thus cannot be
369 compiled as a module.
370
371 config TWL4030_WATCHDOG
372 tristate "TWL4030 Watchdog"
373 depends on TWL4030_CORE
374 select WATCHDOG_CORE
375 help
376 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
377 watchdog timer support for TWL4030 chips.
378
379 config STMP3XXX_RTC_WATCHDOG
380 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
381 depends on RTC_DRV_STMP
382 select WATCHDOG_CORE
383 help
384 Say Y here to include support for the watchdog timer inside
385 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
386 To compile this driver as a module, choose M here: the
387 module will be called stmp3xxx_rtc_wdt.
388
389 config NUC900_WATCHDOG
390 tristate "Nuvoton NUC900 watchdog"
391 depends on ARCH_W90X900
392 help
393 Say Y here if to include support for the watchdog timer
394 for the Nuvoton NUC900 series SoCs.
395 To compile this driver as a module, choose M here: the
396 module will be called nuc900_wdt.
397
398 config TS72XX_WATCHDOG
399 tristate "TS-72XX SBC Watchdog"
400 depends on MACH_TS72XX
401 help
402 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
403 watchdog timer implemented in a external CPLD chip. Say Y here
404 if you want to support for the watchdog timer on TS-72XX boards.
405
406 To compile this driver as a module, choose M here: the
407 module will be called ts72xx_wdt.
408
409 config MAX63XX_WATCHDOG
410 tristate "Max63xx watchdog"
411 depends on ARM && HAS_IOMEM
412 select WATCHDOG_CORE
413 help
414 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
415
416 config IMX2_WDT
417 tristate "IMX2+ Watchdog"
418 depends on ARCH_MXC
419 select REGMAP_MMIO
420 select WATCHDOG_CORE
421 help
422 This is the driver for the hardware watchdog
423 on the Freescale IMX2 and later processors.
424 If you have one of these processors and wish to have
425 watchdog support enabled, say Y, otherwise say N.
426
427 To compile this driver as a module, choose M here: the
428 module will be called imx2_wdt.
429
430 config UX500_WATCHDOG
431 tristate "ST-Ericsson Ux500 watchdog"
432 depends on MFD_DB8500_PRCMU
433 select WATCHDOG_CORE
434 default y
435 help
436 Say Y here to include Watchdog timer support for the watchdog
437 existing in the prcmu of ST-Ericsson Ux500 series platforms.
438
439 To compile this driver as a module, choose M here: the
440 module will be called ux500_wdt.
441
442 config RETU_WATCHDOG
443 tristate "Retu watchdog"
444 depends on MFD_RETU
445 select WATCHDOG_CORE
446 help
447 Retu watchdog driver for Nokia Internet Tablets (770, N800,
448 N810). At least on N800 the watchdog cannot be disabled, so
449 this driver is essential and you should enable it.
450
451 To compile this driver as a module, choose M here: the
452 module will be called retu_wdt.
453
454 config MOXART_WDT
455 tristate "MOXART watchdog"
456 depends on ARCH_MOXART
457 help
458 Say Y here to include Watchdog timer support for the watchdog
459 existing on the MOXA ART SoC series platforms.
460
461 To compile this driver as a module, choose M here: the
462 module will be called moxart_wdt.
463
464 config SIRFSOC_WATCHDOG
465 tristate "SiRFSOC watchdog"
466 depends on ARCH_SIRF
467 select WATCHDOG_CORE
468 default y
469 help
470 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
471 the watchdog triggers the system will be reset.
472
473 config TEGRA_WATCHDOG
474 tristate "Tegra watchdog"
475 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
476 select WATCHDOG_CORE
477 help
478 Say Y here to include support for the watchdog timer
479 embedded in NVIDIA Tegra SoCs.
480
481 To compile this driver as a module, choose M here: the
482 module will be called tegra_wdt.
483
484 config QCOM_WDT
485 tristate "QCOM watchdog"
486 depends on HAS_IOMEM
487 depends on ARCH_QCOM
488 select WATCHDOG_CORE
489 help
490 Say Y here to include Watchdog timer support for the watchdog found
491 on QCOM chipsets. Currently supported targets are the MSM8960,
492 APQ8064, and IPQ8064.
493
494 To compile this driver as a module, choose M here: the
495 module will be called qcom_wdt.
496
497 config MESON_WATCHDOG
498 tristate "Amlogic Meson SoCs watchdog support"
499 depends on ARCH_MESON
500 select WATCHDOG_CORE
501 help
502 Say Y here to include support for the watchdog timer
503 in Amlogic Meson SoCs.
504 To compile this driver as a module, choose M here: the
505 module will be called meson_wdt.
506
507 config MEDIATEK_WATCHDOG
508 tristate "Mediatek SoCs watchdog support"
509 depends on ARCH_MEDIATEK
510 select WATCHDOG_CORE
511 help
512 Say Y here to include support for the watchdog timer
513 in Mediatek SoCs.
514 To compile this driver as a module, choose M here: the
515 module will be called mtk_wdt.
516
517 # AVR32 Architecture
518
519 config AT32AP700X_WDT
520 tristate "AT32AP700x watchdog"
521 depends on CPU_AT32AP700X
522 help
523 Watchdog timer embedded into AT32AP700x devices. This will reboot
524 your system when the timeout is reached.
525
526 # BLACKFIN Architecture
527
528 config BFIN_WDT
529 tristate "Blackfin On-Chip Watchdog Timer"
530 depends on BLACKFIN
531 ---help---
532 If you say yes here you will get support for the Blackfin On-Chip
533 Watchdog Timer. If you have one of these processors and wish to
534 have watchdog support enabled, say Y, otherwise say N.
535
536 To compile this driver as a module, choose M here: the
537 module will be called bfin_wdt.
538
539 # CRIS Architecture
540
541 # FRV Architecture
542
543 # X86 (i386 + ia64 + x86_64) Architecture
544
545 config ACQUIRE_WDT
546 tristate "Acquire SBC Watchdog Timer"
547 depends on X86
548 ---help---
549 This is the driver for the hardware watchdog on Single Board
550 Computers produced by Acquire Inc (and others). This watchdog
551 simply watches your kernel to make sure it doesn't freeze, and if
552 it does, it reboots your computer after a certain amount of time.
553
554 To compile this driver as a module, choose M here: the
555 module will be called acquirewdt.
556
557 Most people will say N.
558
559 config ADVANTECH_WDT
560 tristate "Advantech SBC Watchdog Timer"
561 depends on X86
562 help
563 If you are configuring a Linux kernel for the Advantech single-board
564 computer, say `Y' here to support its built-in watchdog timer
565 feature. More information can be found at
566 <http://www.advantech.com.tw/products/>
567
568 config ALIM1535_WDT
569 tristate "ALi M1535 PMU Watchdog Timer"
570 depends on X86 && PCI
571 ---help---
572 This is the driver for the hardware watchdog on the ALi M1535 PMU.
573
574 To compile this driver as a module, choose M here: the
575 module will be called alim1535_wdt.
576
577 Most people will say N.
578
579 config ALIM7101_WDT
580 tristate "ALi M7101 PMU Computer Watchdog"
581 depends on PCI
582 help
583 This is the driver for the hardware watchdog on the ALi M7101 PMU
584 as used in the x86 Cobalt servers and also found in some
585 SPARC Netra servers too.
586
587 To compile this driver as a module, choose M here: the
588 module will be called alim7101_wdt.
589
590 Most people will say N.
591
592 config F71808E_WDT
593 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
594 depends on X86
595 help
596 This is the driver for the hardware watchdog on the Fintek
597 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
598
599 You can compile this driver directly into the kernel, or use
600 it as a module. The module will be called f71808e_wdt.
601
602 config SP5100_TCO
603 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
604 depends on X86 && PCI
605 ---help---
606 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
607 (Total Cost of Ownership) timer is a watchdog timer that will reboot
608 the machine after its expiration. The expiration time can be
609 configured with the "heartbeat" parameter.
610
611 To compile this driver as a module, choose M here: the
612 module will be called sp5100_tco.
613
614 config GEODE_WDT
615 tristate "AMD Geode CS5535/CS5536 Watchdog"
616 depends on CS5535_MFGPT
617 help
618 This driver enables a watchdog capability built into the
619 CS5535/CS5536 companion chips for the AMD Geode GX and LX
620 processors. This watchdog watches your kernel to make sure
621 it doesn't freeze, and if it does, it reboots your computer after
622 a certain amount of time.
623
624 You can compile this driver directly into the kernel, or use
625 it as a module. The module will be called geodewdt.
626
627 config SC520_WDT
628 tristate "AMD Elan SC520 processor Watchdog"
629 depends on MELAN
630 help
631 This is the driver for the hardware watchdog built in to the
632 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
633 This watchdog simply watches your kernel to make sure it doesn't
634 freeze, and if it does, it reboots your computer after a certain
635 amount of time.
636
637 You can compile this driver directly into the kernel, or use
638 it as a module. The module will be called sc520_wdt.
639
640 config SBC_FITPC2_WATCHDOG
641 tristate "Compulab SBC-FITPC2 watchdog"
642 depends on X86
643 ---help---
644 This is the driver for the built-in watchdog timer on the fit-PC2,
645 fit-PC2i, CM-iAM single-board computers made by Compulab.
646
647 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
648 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
649
650 Entering BIOS setup temporary disables watchdog operation regardless to current state,
651 so system will not be restarted while user in BIOS setup.
652
653 Once watchdog was enabled the system will be restarted every
654 "Watchdog Timer Value" period, so to prevent it user can restart or
655 disable the watchdog.
656
657 To compile this driver as a module, choose M here: the
658 module will be called sbc_fitpc2_wdt.
659
660 Most people will say N.
661
662 config EUROTECH_WDT
663 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
664 depends on X86
665 help
666 Enable support for the watchdog timer on the Eurotech CPU-1220 and
667 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
668 information are at <http://www.eurotech.it/>.
669
670 config IB700_WDT
671 tristate "IB700 SBC Watchdog Timer"
672 depends on X86
673 ---help---
674 This is the driver for the hardware watchdog on the IB700 Single
675 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
676 simply watches your kernel to make sure it doesn't freeze, and if
677 it does, it reboots your computer after a certain amount of time.
678
679 This driver is like the WDT501 driver but for slightly different hardware.
680
681 To compile this driver as a module, choose M here: the
682 module will be called ib700wdt.
683
684 Most people will say N.
685
686 config IBMASR
687 tristate "IBM Automatic Server Restart"
688 depends on X86
689 help
690 This is the driver for the IBM Automatic Server Restart watchdog
691 timer built-in into some eServer xSeries machines.
692
693 To compile this driver as a module, choose M here: the
694 module will be called ibmasr.
695
696 config WAFER_WDT
697 tristate "ICP Single Board Computer Watchdog Timer"
698 depends on X86
699 help
700 This is a driver for the hardware watchdog on the ICP Single
701 Board Computer. This driver is working on (at least) the following
702 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
703
704 To compile this driver as a module, choose M here: the
705 module will be called wafer5823wdt.
706
707 config I6300ESB_WDT
708 tristate "Intel 6300ESB Timer/Watchdog"
709 depends on PCI
710 ---help---
711 Hardware driver for the watchdog timer built into the Intel
712 6300ESB controller hub.
713
714 To compile this driver as a module, choose M here: the
715 module will be called i6300esb.
716
717 config IE6XX_WDT
718 tristate "Intel Atom E6xx Watchdog"
719 depends on X86 && PCI
720 select WATCHDOG_CORE
721 select MFD_CORE
722 select LPC_SCH
723 ---help---
724 Hardware driver for the watchdog timer built into the Intel
725 Atom E6XX (TunnelCreek) processor.
726
727 To compile this driver as a module, choose M here: the
728 module will be called ie6xx_wdt.
729
730 config INTEL_SCU_WATCHDOG
731 bool "Intel SCU Watchdog for Mobile Platforms"
732 depends on X86_INTEL_MID
733 ---help---
734 Hardware driver for the watchdog time built into the Intel SCU
735 for Intel Mobile Platforms.
736
737 To compile this driver as a module, choose M here.
738
739 config INTEL_MID_WATCHDOG
740 tristate "Intel MID Watchdog Timer"
741 depends on X86_INTEL_MID
742 select WATCHDOG_CORE
743 ---help---
744 Watchdog timer driver built into the Intel SCU for Intel MID
745 Platforms.
746
747 This driver currently supports only the watchdog evolution
748 implementation in SCU, available for Merrifield generation.
749
750 To compile this driver as a module, choose M here.
751
752 config ITCO_WDT
753 tristate "Intel TCO Timer/Watchdog"
754 depends on (X86 || IA64) && PCI
755 select WATCHDOG_CORE
756 select LPC_ICH
757 ---help---
758 Hardware driver for the intel TCO timer based watchdog devices.
759 These drivers are included in the Intel 82801 I/O Controller
760 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
761 controller hub.
762
763 The TCO (Total Cost of Ownership) timer is a watchdog timer
764 that will reboot the machine after its second expiration. The
765 expiration time can be configured with the "heartbeat" parameter.
766
767 On some motherboards the driver may fail to reset the chipset's
768 NO_REBOOT flag which prevents the watchdog from rebooting the
769 machine. If this is the case you will get a kernel message like
770 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
771
772 To compile this driver as a module, choose M here: the
773 module will be called iTCO_wdt.
774
775 config ITCO_VENDOR_SUPPORT
776 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
777 depends on ITCO_WDT
778 ---help---
779 Add vendor specific support to the intel TCO timer based watchdog
780 devices. At this moment we only have additional support for some
781 SuperMicro Inc. motherboards.
782
783 config IT8712F_WDT
784 tristate "IT8712F (Smart Guardian) Watchdog Timer"
785 depends on X86
786 ---help---
787 This is the driver for the built-in watchdog timer on the IT8712F
788 Super I/0 chipset used on many motherboards.
789
790 If the driver does not work, then make sure that the game port in
791 the BIOS is enabled.
792
793 To compile this driver as a module, choose M here: the
794 module will be called it8712f_wdt.
795
796 config IT87_WDT
797 tristate "IT87 Watchdog Timer"
798 depends on X86
799 ---help---
800 This is the driver for the hardware watchdog on the ITE IT8702,
801 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
802 Super I/O chips.
803
804 If the driver does not work, then make sure that the game port in
805 the BIOS is enabled.
806
807 This watchdog simply watches your kernel to make sure it doesn't
808 freeze, and if it does, it reboots your computer after a certain
809 amount of time.
810
811 To compile this driver as a module, choose M here: the module will
812 be called it87_wdt.
813
814 config HP_WATCHDOG
815 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
816 depends on X86 && PCI
817 help
818 A software monitoring watchdog and NMI sourcing driver. This driver
819 will detect lockups and provide a stack trace. This is a driver that
820 will only load on an HP ProLiant system with a minimum of iLO2 support.
821 To compile this driver as a module, choose M here: the module will be
822 called hpwdt.
823
824 config KEMPLD_WDT
825 tristate "Kontron COM Watchdog Timer"
826 depends on MFD_KEMPLD
827 select WATCHDOG_CORE
828 help
829 Support for the PLD watchdog on some Kontron ETX and COMexpress
830 (ETXexpress) modules
831
832 This driver can also be built as a module. If so, the module will be
833 called kempld_wdt.
834
835 config HPWDT_NMI_DECODING
836 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
837 depends on HP_WATCHDOG
838 default y
839 help
840 When an NMI occurs this feature will make the necessary BIOS calls to
841 log the cause of the NMI.
842
843 config SC1200_WDT
844 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
845 depends on X86
846 help
847 This is a driver for National Semiconductor PC87307/PC97307 hardware
848 watchdog cards as found on the SC1200. This watchdog is mainly used
849 for power management purposes and can be used to power down the device
850 during inactivity periods (includes interrupt activity monitoring).
851
852 To compile this driver as a module, choose M here: the
853 module will be called sc1200wdt.
854
855 Most people will say N.
856
857 config SCx200_WDT
858 tristate "National Semiconductor SCx200 Watchdog"
859 depends on SCx200 && PCI
860 help
861 Enable the built-in watchdog timer support on the National
862 Semiconductor SCx200 processors.
863
864 If compiled as a module, it will be called scx200_wdt.
865
866 config PC87413_WDT
867 tristate "NS PC87413 watchdog"
868 depends on X86
869 ---help---
870 This is the driver for the hardware watchdog on the PC87413 chipset
871 This watchdog simply watches your kernel to make sure it doesn't
872 freeze, and if it does, it reboots your computer after a certain
873 amount of time.
874
875 To compile this driver as a module, choose M here: the
876 module will be called pc87413_wdt.
877
878 Most people will say N.
879
880 config NV_TCO
881 tristate "nVidia TCO Timer/Watchdog"
882 depends on X86 && PCI
883 ---help---
884 Hardware driver for the TCO timer built into the nVidia Hub family
885 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
886 watchdog timer that will reboot the machine after its second
887 expiration. The expiration time can be configured with the
888 "heartbeat" parameter.
889
890 On some motherboards the driver may fail to reset the chipset's
891 NO_REBOOT flag which prevents the watchdog from rebooting the
892 machine. If this is the case you will get a kernel message like
893 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
894
895 To compile this driver as a module, choose M here: the
896 module will be called nv_tco.
897
898 config RDC321X_WDT
899 tristate "RDC R-321x SoC watchdog"
900 depends on X86_RDC321X
901 help
902 This is the driver for the built in hardware watchdog
903 in the RDC R-321x SoC.
904
905 To compile this driver as a module, choose M here: the
906 module will be called rdc321x_wdt.
907
908 config 60XX_WDT
909 tristate "SBC-60XX Watchdog Timer"
910 depends on X86
911 help
912 This driver can be used with the watchdog timer found on some
913 single board computers, namely the 6010 PII based computer.
914 It may well work with other cards. It reads port 0x443 to enable
915 and re-set the watchdog timer, and reads port 0x45 to disable
916 the watchdog. If you have a card that behave in similar ways,
917 you can probably make this driver work with your card as well.
918
919 You can compile this driver directly into the kernel, or use
920 it as a module. The module will be called sbc60xxwdt.
921
922 config SBC8360_WDT
923 tristate "SBC8360 Watchdog Timer"
924 depends on X86_32
925 ---help---
926
927 This is the driver for the hardware watchdog on the SBC8360 Single
928 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
929
930 To compile this driver as a module, choose M here: the
931 module will be called sbc8360.
932
933 Most people will say N.
934
935 config SBC7240_WDT
936 tristate "SBC Nano 7240 Watchdog Timer"
937 depends on X86_32 && !UML
938 ---help---
939 This is the driver for the hardware watchdog found on the IEI
940 single board computers EPIC Nano 7240 (and likely others). This
941 watchdog simply watches your kernel to make sure it doesn't freeze,
942 and if it does, it reboots your computer after a certain amount of
943 time.
944
945 To compile this driver as a module, choose M here: the
946 module will be called sbc7240_wdt.
947
948 config CPU5_WDT
949 tristate "SMA CPU5 Watchdog"
950 depends on X86
951 ---help---
952 TBD.
953 To compile this driver as a module, choose M here: the
954 module will be called cpu5wdt.
955
956 config SMSC_SCH311X_WDT
957 tristate "SMSC SCH311X Watchdog Timer"
958 depends on X86
959 ---help---
960 This is the driver for the hardware watchdog timer on the
961 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
962 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
963 serial ports).
964
965 To compile this driver as a module, choose M here: the
966 module will be called sch311x_wdt.
967
968 config SMSC37B787_WDT
969 tristate "Winbond SMsC37B787 Watchdog Timer"
970 depends on X86
971 ---help---
972 This is the driver for the hardware watchdog component on the
973 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
974 from Vision Systems and maybe others.
975
976 This watchdog simply watches your kernel to make sure it doesn't
977 freeze, and if it does, it reboots your computer after a certain
978 amount of time.
979
980 Usually a userspace daemon will notify the kernel WDT driver that
981 userspace is still alive, at regular intervals.
982
983 To compile this driver as a module, choose M here: the
984 module will be called smsc37b787_wdt.
985
986 Most people will say N.
987
988 config VIA_WDT
989 tristate "VIA Watchdog Timer"
990 depends on X86 && PCI
991 select WATCHDOG_CORE
992 ---help---
993 This is the driver for the hardware watchdog timer on VIA
994 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
995
996 To compile this driver as a module, choose M here; the module
997 will be called via_wdt.
998
999 Most people will say N.
1000
1001 config W83627HF_WDT
1002 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1003 depends on X86
1004 select WATCHDOG_CORE
1005 ---help---
1006 This is the driver for the hardware watchdog on the following
1007 Super I/O chips.
1008 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1009 W83637HF
1010 W83667HG/HG-B
1011 W83687THF
1012 W83697HF
1013 W83697UG
1014 NCT6775
1015 NCT6776
1016 NCT6779
1017 NCT6791
1018 NCT6792
1019
1020 This watchdog simply watches your kernel to make sure it doesn't
1021 freeze, and if it does, it reboots your computer after a certain
1022 amount of time.
1023
1024 To compile this driver as a module, choose M here: the
1025 module will be called w83627hf_wdt.
1026
1027 Most people will say N.
1028
1029 config W83877F_WDT
1030 tristate "W83877F (EMACS) Watchdog Timer"
1031 depends on X86
1032 ---help---
1033 This is the driver for the hardware watchdog on the W83877F chipset
1034 as used in EMACS PC-104 motherboards (and likely others). This
1035 watchdog simply watches your kernel to make sure it doesn't freeze,
1036 and if it does, it reboots your computer after a certain amount of
1037 time.
1038
1039 To compile this driver as a module, choose M here: the
1040 module will be called w83877f_wdt.
1041
1042 Most people will say N.
1043
1044 config W83977F_WDT
1045 tristate "W83977F (PCM-5335) Watchdog Timer"
1046 depends on X86
1047 ---help---
1048 This is the driver for the hardware watchdog on the W83977F I/O chip
1049 as used in AAEON's PCM-5335 SBC (and likely others). This
1050 watchdog simply watches your kernel to make sure it doesn't freeze,
1051 and if it does, it reboots your computer after a certain amount of
1052 time.
1053
1054 To compile this driver as a module, choose M here: the
1055 module will be called w83977f_wdt.
1056
1057 config MACHZ_WDT
1058 tristate "ZF MachZ Watchdog"
1059 depends on X86
1060 ---help---
1061 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1062 N. This is the driver for the watchdog timer built-in on that
1063 processor using ZF-Logic interface. This watchdog simply watches
1064 your kernel to make sure it doesn't freeze, and if it does, it
1065 reboots your computer after a certain amount of time.
1066
1067 To compile this driver as a module, choose M here: the
1068 module will be called machzwd.
1069
1070 config SBC_EPX_C3_WATCHDOG
1071 tristate "Winsystems SBC EPX-C3 watchdog"
1072 depends on X86
1073 ---help---
1074 This is the driver for the built-in watchdog timer on the EPX-C3
1075 Single-board computer made by Winsystems, Inc.
1076
1077 *Note*: This hardware watchdog is not probeable and thus there
1078 is no way to know if writing to its IO address will corrupt
1079 your system or have any real effect. The only way to be sure
1080 that this driver does what you want is to make sure you
1081 are running it on an EPX-C3 from Winsystems with the watchdog
1082 timer at IO address 0x1ee and 0x1ef. It will write to both those
1083 IO ports. Basically, the assumption is made that if you compile
1084 this driver into your kernel and/or load it as a module, that you
1085 know what you are doing and that you are in fact running on an
1086 EPX-C3 board!
1087
1088 To compile this driver as a module, choose M here: the
1089 module will be called sbc_epx_c3.
1090
1091 # M32R Architecture
1092
1093 # M68K Architecture
1094
1095 config M54xx_WATCHDOG
1096 tristate "MCF54xx watchdog support"
1097 depends on M548x
1098 help
1099 To compile this driver as a module, choose M here: the
1100 module will be called m54xx_wdt.
1101
1102 # MicroBlaze Architecture
1103
1104 # MIPS Architecture
1105
1106 config ATH79_WDT
1107 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1108 depends on ATH79
1109 help
1110 Hardware driver for the built-in watchdog timer on the Atheros
1111 AR71XX/AR724X/AR913X SoCs.
1112
1113 config BCM47XX_WDT
1114 tristate "Broadcom BCM47xx Watchdog Timer"
1115 depends on BCM47XX || ARCH_BCM_5301X
1116 select WATCHDOG_CORE
1117 help
1118 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1119
1120 config RC32434_WDT
1121 tristate "IDT RC32434 SoC Watchdog Timer"
1122 depends on MIKROTIK_RB532
1123 help
1124 Hardware driver for the IDT RC32434 SoC built-in
1125 watchdog timer.
1126
1127 To compile this driver as a module, choose M here: the
1128 module will be called rc32434_wdt.
1129
1130 config INDYDOG
1131 tristate "Indy/I2 Hardware Watchdog"
1132 depends on SGI_HAS_INDYDOG
1133 help
1134 Hardware driver for the Indy's/I2's watchdog. This is a
1135 watchdog timer that will reboot the machine after a 60 second
1136 timer expired and no process has written to /dev/watchdog during
1137 that time.
1138
1139 config JZ4740_WDT
1140 tristate "Ingenic jz4740 SoC hardware watchdog"
1141 depends on MACH_JZ4740
1142 select WATCHDOG_CORE
1143 help
1144 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1145
1146 config WDT_MTX1
1147 tristate "MTX-1 Hardware Watchdog"
1148 depends on MIPS_MTX1
1149 help
1150 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1151 will reboot the machine after a 100 seconds timer expired.
1152
1153 config PNX833X_WDT
1154 tristate "PNX833x Hardware Watchdog"
1155 depends on SOC_PNX8335
1156 help
1157 Hardware driver for the PNX833x's watchdog. This is a
1158 watchdog timer that will reboot the machine after a programmable
1159 timer has expired and no process has written to /dev/watchdog during
1160 that time.
1161
1162 config SIBYTE_WDOG
1163 tristate "Sibyte SoC hardware watchdog"
1164 depends on CPU_SB1
1165 help
1166 Watchdog driver for the built in watchdog hardware in Sibyte
1167 SoC processors. There are apparently two watchdog timers
1168 on such processors; this driver supports only the first one,
1169 because currently Linux only supports exporting one watchdog
1170 to userspace.
1171
1172 To compile this driver as a loadable module, choose M here.
1173 The module will be called sb_wdog.
1174
1175 config AR7_WDT
1176 tristate "TI AR7 Watchdog Timer"
1177 depends on AR7
1178 help
1179 Hardware driver for the TI AR7 Watchdog Timer.
1180
1181 config TXX9_WDT
1182 tristate "Toshiba TXx9 Watchdog Timer"
1183 depends on CPU_TX39XX || CPU_TX49XX
1184 select WATCHDOG_CORE
1185 help
1186 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1187
1188 config OCTEON_WDT
1189 tristate "Cavium OCTEON SOC family Watchdog Timer"
1190 depends on CAVIUM_OCTEON_SOC
1191 default y
1192 select WATCHDOG_CORE
1193 select EXPORT_UASM if OCTEON_WDT = m
1194 help
1195 Hardware driver for OCTEON's on chip watchdog timer.
1196 Enables the watchdog for all cores running Linux. It
1197 installs a NMI handler and pokes the watchdog based on an
1198 interrupt. On first expiration of the watchdog, the
1199 interrupt handler pokes it. The second expiration causes an
1200 NMI that prints a message. The third expiration causes a
1201 global soft reset.
1202
1203 When userspace has /dev/watchdog open, no poking is done
1204 from the first interrupt, it is then only poked when the
1205 device is written.
1206
1207 config BCM63XX_WDT
1208 tristate "Broadcom BCM63xx hardware watchdog"
1209 depends on BCM63XX
1210 help
1211 Watchdog driver for the built in watchdog hardware in Broadcom
1212 BCM63xx SoC.
1213
1214 To compile this driver as a loadable module, choose M here.
1215 The module will be called bcm63xx_wdt.
1216
1217 config BCM2835_WDT
1218 tristate "Broadcom BCM2835 hardware watchdog"
1219 depends on ARCH_BCM2835
1220 select WATCHDOG_CORE
1221 help
1222 Watchdog driver for the built in watchdog hardware in Broadcom
1223 BCM2835 SoC.
1224
1225 To compile this driver as a loadable module, choose M here.
1226 The module will be called bcm2835_wdt.
1227
1228 config BCM_KONA_WDT
1229 tristate "BCM Kona Watchdog"
1230 depends on ARCH_BCM_MOBILE
1231 select WATCHDOG_CORE
1232 help
1233 Support for the watchdog timer on the following Broadcom BCM281xx
1234 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1235 BCM28155 variants.
1236
1237 Say 'Y' or 'M' here to enable the driver. The module will be called
1238 bcm_kona_wdt.
1239
1240 config BCM_KONA_WDT_DEBUG
1241 bool "DEBUGFS support for BCM Kona Watchdog"
1242 depends on BCM_KONA_WDT
1243 help
1244 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1245 access to the driver's internal data structures as well as watchdog
1246 timer hardware registres.
1247
1248 If in doubt, say 'N'.
1249
1250 config IMGPDC_WDT
1251 tristate "Imagination Technologies PDC Watchdog Timer"
1252 depends on HAS_IOMEM
1253 depends on METAG || MIPS || COMPILE_TEST
1254 help
1255 Driver for Imagination Technologies PowerDown Controller
1256 Watchdog Timer.
1257
1258 To compile this driver as a loadable module, choose M here.
1259 The module will be called imgpdc_wdt.
1260
1261 config LANTIQ_WDT
1262 tristate "Lantiq SoC watchdog"
1263 depends on LANTIQ
1264 help
1265 Hardware driver for the Lantiq SoC Watchdog Timer.
1266
1267 config RALINK_WDT
1268 tristate "Ralink SoC watchdog"
1269 select WATCHDOG_CORE
1270 depends on RALINK
1271 help
1272 Hardware driver for the Ralink SoC Watchdog Timer.
1273
1274 # PARISC Architecture
1275
1276 # POWERPC Architecture
1277
1278 config GEF_WDT
1279 tristate "GE Watchdog Timer"
1280 depends on GE_FPGA
1281 ---help---
1282 Watchdog timer found in a number of GE single board computers.
1283
1284 config MPC5200_WDT
1285 bool "MPC52xx Watchdog Timer"
1286 depends on PPC_MPC52xx
1287 help
1288 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1289
1290 config 8xxx_WDT
1291 tristate "MPC8xxx Platform Watchdog Timer"
1292 depends on PPC_8xx || PPC_83xx || PPC_86xx
1293 select WATCHDOG_CORE
1294 help
1295 This driver is for a SoC level watchdog that exists on some
1296 Freescale PowerPC processors. So far this driver supports:
1297 - MPC8xx watchdogs
1298 - MPC83xx watchdogs
1299 - MPC86xx watchdogs
1300
1301 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1302
1303 config MV64X60_WDT
1304 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1305 depends on MV64X60
1306
1307 config PIKA_WDT
1308 tristate "PIKA FPGA Watchdog"
1309 depends on WARP
1310 default y
1311 help
1312 This enables the watchdog in the PIKA FPGA. Currently used on
1313 the Warp platform.
1314
1315 config BOOKE_WDT
1316 tristate "PowerPC Book-E Watchdog Timer"
1317 depends on BOOKE || 4xx
1318 select WATCHDOG_CORE
1319 ---help---
1320 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1321 MPC85xx SOCs and the IBM PowerPC 440.
1322
1323 Please see Documentation/watchdog/watchdog-api.txt for
1324 more information.
1325
1326 config BOOKE_WDT_DEFAULT_TIMEOUT
1327 int "PowerPC Book-E Watchdog Timer Default Timeout"
1328 depends on BOOKE_WDT
1329 default 38 if PPC_FSL_BOOK3E
1330 range 0 63 if PPC_FSL_BOOK3E
1331 default 3 if !PPC_FSL_BOOK3E
1332 range 0 3 if !PPC_FSL_BOOK3E
1333 help
1334 Select the default watchdog timer period to be used by the PowerPC
1335 Book-E watchdog driver. A watchdog "event" occurs when the bit
1336 position represented by this number transitions from zero to one.
1337
1338 For Freescale Book-E processors, this is a number between 0 and 63.
1339 For other Book-E processors, this is a number between 0 and 3.
1340
1341 The value can be overridden by the wdt_period command-line parameter.
1342
1343 config MEN_A21_WDT
1344 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1345 select WATCHDOG_CORE
1346 depends on GPIOLIB
1347 help
1348 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1349
1350 The driver can also be built as a module. If so, the module will be
1351 called mena21_wdt.
1352
1353 If unsure select N here.
1354
1355 # PPC64 Architecture
1356
1357 config WATCHDOG_RTAS
1358 tristate "RTAS watchdog"
1359 depends on PPC_RTAS
1360 help
1361 This driver adds watchdog support for the RTAS watchdog.
1362
1363 To compile this driver as a module, choose M here. The module
1364 will be called wdrtas.
1365
1366 # S390 Architecture
1367
1368 config DIAG288_WATCHDOG
1369 tristate "System z diag288 Watchdog"
1370 depends on S390
1371 select WATCHDOG_CORE
1372 help
1373 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1374 provide a virtual watchdog timer to their guest that cause a
1375 user define Control Program command to be executed after a
1376 timeout.
1377 LPAR provides a very similar interface. This driver handles
1378 both.
1379
1380 To compile this driver as a module, choose M here. The module
1381 will be called diag288_wdt.
1382
1383 # SUPERH (sh + sh64) Architecture
1384
1385 config SH_WDT
1386 tristate "SuperH Watchdog"
1387 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1388 select WATCHDOG_CORE
1389 help
1390 This driver adds watchdog support for the integrated watchdog in the
1391 SuperH processors. If you have one of these processors and wish
1392 to have watchdog support enabled, say Y, otherwise say N.
1393
1394 As a side note, saying Y here will automatically boost HZ to 1000
1395 so that the timer has a chance to clear the overflow counter. On
1396 slower systems (such as the SH-2 and SH-3) this will likely yield
1397 some performance issues. As such, the WDT should be avoided here
1398 unless it is absolutely necessary.
1399
1400 To compile this driver as a module, choose M here: the
1401 module will be called shwdt.
1402
1403 # SPARC Architecture
1404
1405 # SPARC64 Architecture
1406
1407 config WATCHDOG_CP1XXX
1408 tristate "CP1XXX Hardware Watchdog support"
1409 depends on SPARC64 && PCI
1410 ---help---
1411 This is the driver for the hardware watchdog timers present on
1412 Sun Microsystems CompactPCI models CP1400 and CP1500.
1413
1414 To compile this driver as a module, choose M here: the
1415 module will be called cpwatchdog.
1416
1417 If you do not have a CompactPCI model CP1400 or CP1500, or
1418 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1419 you should say N to this option.
1420
1421 config WATCHDOG_RIO
1422 tristate "RIO Hardware Watchdog support"
1423 depends on SPARC64 && PCI
1424 help
1425 Say Y here to support the hardware watchdog capability on Sun RIO
1426 machines. The watchdog timeout period is normally one minute but
1427 can be changed with a boot-time parameter.
1428
1429 # XTENSA Architecture
1430
1431 # Xen Architecture
1432
1433 config XEN_WDT
1434 tristate "Xen Watchdog support"
1435 depends on XEN
1436 help
1437 Say Y here to support the hypervisor watchdog capability provided
1438 by Xen 4.0 and newer. The watchdog timeout period is normally one
1439 minute but can be changed with a boot-time parameter.
1440
1441 config UML_WATCHDOG
1442 tristate "UML watchdog"
1443 depends on UML
1444
1445 #
1446 # ISA-based Watchdog Cards
1447 #
1448
1449 comment "ISA-based Watchdog Cards"
1450 depends on ISA
1451
1452 config PCWATCHDOG
1453 tristate "Berkshire Products ISA-PC Watchdog"
1454 depends on ISA
1455 ---help---
1456 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1457 This card simply watches your kernel to make sure it doesn't freeze,
1458 and if it does, it reboots your computer after a certain amount of
1459 time. This driver is like the WDT501 driver but for different
1460 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1461 watchdog cards can be ordered from <http://www.berkprod.com/>.
1462
1463 To compile this driver as a module, choose M here: the
1464 module will be called pcwd.
1465
1466 Most people will say N.
1467
1468 config MIXCOMWD
1469 tristate "Mixcom Watchdog"
1470 depends on ISA
1471 ---help---
1472 This is a driver for the Mixcom hardware watchdog cards. This
1473 watchdog simply watches your kernel to make sure it doesn't freeze,
1474 and if it does, it reboots your computer after a certain amount of
1475 time.
1476
1477 To compile this driver as a module, choose M here: the
1478 module will be called mixcomwd.
1479
1480 Most people will say N.
1481
1482 config WDT
1483 tristate "WDT Watchdog timer"
1484 depends on ISA
1485 ---help---
1486 If you have a WDT500P or WDT501P watchdog board, say Y here,
1487 otherwise N. It is not possible to probe for this board, which means
1488 that you have to inform the kernel about the IO port and IRQ that
1489 is needed (you can do this via the io and irq parameters)
1490
1491 To compile this driver as a module, choose M here: the
1492 module will be called wdt.
1493
1494 #
1495 # PCI-based Watchdog Cards
1496 #
1497
1498 comment "PCI-based Watchdog Cards"
1499 depends on PCI
1500
1501 config PCIPCWATCHDOG
1502 tristate "Berkshire Products PCI-PC Watchdog"
1503 depends on PCI
1504 ---help---
1505 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1506 This card simply watches your kernel to make sure it doesn't freeze,
1507 and if it does, it reboots your computer after a certain amount of
1508 time. The card can also monitor the internal temperature of the PC.
1509 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1510
1511 To compile this driver as a module, choose M here: the
1512 module will be called pcwd_pci.
1513
1514 Most people will say N.
1515
1516 config WDTPCI
1517 tristate "PCI-WDT500/501 Watchdog timer"
1518 depends on PCI
1519 ---help---
1520 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1521
1522 If you have a PCI-WDT501 watchdog board then you can enable the
1523 temperature sensor by setting the type parameter to 501.
1524
1525 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1526 can do this via the tachometer parameter. Only do this if you have a
1527 fan tachometer actually set up.
1528
1529 To compile this driver as a module, choose M here: the
1530 module will be called wdt_pci.
1531
1532 #
1533 # USB-based Watchdog Cards
1534 #
1535
1536 comment "USB-based Watchdog Cards"
1537 depends on USB
1538
1539 config USBPCWATCHDOG
1540 tristate "Berkshire Products USB-PC Watchdog"
1541 depends on USB
1542 ---help---
1543 This is the driver for the Berkshire Products USB-PC Watchdog card.
1544 This card simply watches your kernel to make sure it doesn't freeze,
1545 and if it does, it reboots your computer after a certain amount of
1546 time. The card can also monitor the internal temperature of the PC.
1547 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1548
1549 To compile this driver as a module, choose M here: the
1550 module will be called pcwd_usb.
1551
1552 Most people will say N.
1553
1554 endif # WATCHDOG
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