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1
2 #
3 # Watchdog device configuration
4 #
5
6 menuconfig WATCHDOG
7 bool "Watchdog Timer Support"
8 ---help---
9 If you say Y here (and to one of the following options) and create a
10 character special file /dev/watchdog with major number 10 and minor
11 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
12 subsequently opening the file and then failing to write to it for
13 longer than 1 minute will result in rebooting the machine. This
14 could be useful for a networked machine that needs to come back
15 on-line as fast as possible after a lock-up. There's both a watchdog
16 implementation entirely in software (which can sometimes fail to
17 reboot the machine) and a driver for hardware watchdog boards, which
18 are more robust and can also keep track of the temperature inside
19 your computer. For details, read
20 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
21
22 The watchdog is usually used together with the watchdog daemon
23 which is available from
24 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
25 also monitor NFS connections and can reboot the machine when the process
26 table is full.
27
28 If unsure, say N.
29
30 if WATCHDOG
31
32 config WATCHDOG_CORE
33 bool "WatchDog Timer Driver Core"
34 ---help---
35 Say Y here if you want to use the new watchdog timer driver core.
36 This driver provides a framework for all watchdog timer drivers
37 and gives them the /dev/watchdog interface (and later also the
38 sysfs interface).
39
40 config WATCHDOG_NOWAYOUT
41 bool "Disable watchdog shutdown on close"
42 help
43 The default watchdog behaviour (which you get if you say N here) is
44 to stop the timer if the process managing it closes the file
45 /dev/watchdog. It's always remotely possible that this process might
46 get killed. If you say Y here, the watchdog cannot be stopped once
47 it has been started.
48
49 config WATCHDOG_SYSFS
50 bool "Read different watchdog information through sysfs"
51 default n
52 help
53 Say Y here if you want to enable watchdog device status read through
54 sysfs attributes.
55
56 #
57 # General Watchdog drivers
58 #
59
60 comment "Watchdog Device Drivers"
61
62 # Architecture Independent
63
64 config SOFT_WATCHDOG
65 tristate "Software watchdog"
66 select WATCHDOG_CORE
67 help
68 A software monitoring watchdog. This will fail to reboot your system
69 from some situations that the hardware watchdog will recover
70 from. Equally it's a lot cheaper to install.
71
72 To compile this driver as a module, choose M here: the
73 module will be called softdog.
74
75 config DA9052_WATCHDOG
76 tristate "Dialog DA9052 Watchdog"
77 depends on PMIC_DA9052
78 select WATCHDOG_CORE
79 help
80 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
81 cause system reset.
82
83 Say Y here to include support for the DA9052 watchdog.
84 Alternatively say M to compile the driver as a module,
85 which will be called da9052_wdt.
86
87 config DA9055_WATCHDOG
88 tristate "Dialog Semiconductor DA9055 Watchdog"
89 depends on MFD_DA9055
90 select WATCHDOG_CORE
91 help
92 If you say yes here you get support for watchdog on the Dialog
93 Semiconductor DA9055 PMIC.
94
95 This driver can also be built as a module. If so, the module
96 will be called da9055_wdt.
97
98 config DA9063_WATCHDOG
99 tristate "Dialog DA9063 Watchdog"
100 depends on MFD_DA9063
101 select WATCHDOG_CORE
102 help
103 Support for the watchdog in the DA9063 PMIC.
104
105 This driver can be built as a module. The module name is da9063_wdt.
106
107 config DA9062_WATCHDOG
108 tristate "Dialog DA9062 Watchdog"
109 depends on MFD_DA9062
110 select WATCHDOG_CORE
111 help
112 Support for the watchdog in the DA9062 PMIC.
113
114 This driver can be built as a module. The module name is da9062_wdt.
115
116 config GPIO_WATCHDOG
117 tristate "Watchdog device controlled through GPIO-line"
118 depends on OF_GPIO
119 select WATCHDOG_CORE
120 help
121 If you say yes here you get support for watchdog device
122 controlled through GPIO-line.
123
124 config GPIO_WATCHDOG_ARCH_INITCALL
125 bool "Register the watchdog as early as possible"
126 depends on GPIO_WATCHDOG=y
127 help
128 In some situations, the default initcall level (module_init)
129 in not early enough in the boot process to avoid the watchdog
130 to be triggered.
131 If you say yes here, the initcall level would be raised to
132 arch_initcall.
133 If in doubt, say N.
134
135 config MENF21BMC_WATCHDOG
136 tristate "MEN 14F021P00 BMC Watchdog"
137 depends on MFD_MENF21BMC
138 select WATCHDOG_CORE
139 help
140 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
141
142 This driver can also be built as a module. If so the module
143 will be called menf21bmc_wdt.
144
145 config TANGOX_WATCHDOG
146 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
147 select WATCHDOG_CORE
148 depends on ARCH_TANGO || COMPILE_TEST
149 depends on HAS_IOMEM
150 help
151 Support for the watchdog in Sigma Designs SMP86xx (tango3)
152 and SMP87xx (tango4) family chips.
153
154 This driver can be built as a module. The module name is tangox_wdt.
155
156 config WM831X_WATCHDOG
157 tristate "WM831x watchdog"
158 depends on MFD_WM831X
159 select WATCHDOG_CORE
160 help
161 Support for the watchdog in the WM831x AudioPlus PMICs. When
162 the watchdog triggers the system will be reset.
163
164 config WM8350_WATCHDOG
165 tristate "WM8350 watchdog"
166 depends on MFD_WM8350
167 select WATCHDOG_CORE
168 help
169 Support for the watchdog in the WM8350 AudioPlus PMIC. When
170 the watchdog triggers the system will be reset.
171
172 config XILINX_WATCHDOG
173 tristate "Xilinx Watchdog timer"
174 depends on HAS_IOMEM
175 select WATCHDOG_CORE
176 help
177 Watchdog driver for the xps_timebase_wdt ip core.
178
179 To compile this driver as a module, choose M here: the
180 module will be called of_xilinx_wdt.
181
182 config ZIIRAVE_WATCHDOG
183 tristate "Zodiac RAVE Watchdog Timer"
184 depends on I2C
185 select WATCHDOG_CORE
186 help
187 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
188 Processor.
189
190 To compile this driver as a module, choose M here: the
191 module will be called ziirave_wdt.
192
193 # ALPHA Architecture
194
195 # ARM Architecture
196
197 config ARM_SP805_WATCHDOG
198 tristate "ARM SP805 Watchdog"
199 depends on (ARM || ARM64) && ARM_AMBA
200 select WATCHDOG_CORE
201 help
202 ARM Primecell SP805 Watchdog timer. This will reboot your system when
203 the timeout is reached.
204
205 config ARM_SBSA_WATCHDOG
206 tristate "ARM SBSA Generic Watchdog"
207 depends on ARM64
208 depends on ARM_ARCH_TIMER
209 select WATCHDOG_CORE
210 help
211 ARM SBSA Generic Watchdog has two stage timeouts:
212 the first signal (WS0) is for alerting the system by interrupt,
213 the second one (WS1) is a real hardware reset.
214 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
215
216 This driver can operate ARM SBSA Generic Watchdog as a single stage
217 or a two stages watchdog, it depends on the module parameter "action".
218
219 Note: the maximum timeout in the two stages mode is half of that in
220 the single stage mode.
221
222 To compile this driver as module, choose M here: The module
223 will be called sbsa_gwdt.
224
225 config ASM9260_WATCHDOG
226 tristate "Alphascale ASM9260 watchdog"
227 depends on MACH_ASM9260
228 depends on OF
229 select WATCHDOG_CORE
230 select RESET_CONTROLLER
231 help
232 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
233 system when the timeout is reached.
234
235 config AT91RM9200_WATCHDOG
236 tristate "AT91RM9200 watchdog"
237 depends on SOC_AT91RM9200 && MFD_SYSCON
238 help
239 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
240 system when the timeout is reached.
241
242 config AT91SAM9X_WATCHDOG
243 tristate "AT91SAM9X / AT91CAP9 watchdog"
244 depends on ARCH_AT91
245 select WATCHDOG_CORE
246 help
247 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
248 reboot your system when the timeout is reached.
249
250 config SAMA5D4_WATCHDOG
251 tristate "Atmel SAMA5D4 Watchdog Timer"
252 depends on ARCH_AT91
253 select WATCHDOG_CORE
254 help
255 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
256 Its Watchdog Timer Mode Register can be written more than once.
257 This will reboot your system when the timeout is reached.
258
259 config CADENCE_WATCHDOG
260 tristate "Cadence Watchdog Timer"
261 depends on HAS_IOMEM
262 select WATCHDOG_CORE
263 help
264 Say Y here if you want to include support for the watchdog
265 timer in the Xilinx Zynq.
266
267 config 21285_WATCHDOG
268 tristate "DC21285 watchdog"
269 depends on FOOTBRIDGE
270 help
271 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
272 here if you wish to use this. Alternatively say M to compile the
273 driver as a module, which will be called wdt285.
274
275 This driver does not work on all machines. In particular, early CATS
276 boards have hardware problems that will cause the machine to simply
277 lock up if the watchdog fires.
278
279 "If in doubt, leave it out" - say N.
280
281 config 977_WATCHDOG
282 tristate "NetWinder WB83C977 watchdog"
283 depends on FOOTBRIDGE && ARCH_NETWINDER
284 help
285 Say Y here to include support for the WB977 watchdog included in
286 NetWinder machines. Alternatively say M to compile the driver as
287 a module, which will be called wdt977.
288
289 Not sure? It's safe to say N.
290
291 config IXP4XX_WATCHDOG
292 tristate "IXP4xx Watchdog"
293 depends on ARCH_IXP4XX
294 help
295 Say Y here if to include support for the watchdog timer
296 in the Intel IXP4xx network processors. This driver can
297 be built as a module by choosing M. The module will
298 be called ixp4xx_wdt.
299
300 Note: The internal IXP4xx watchdog does a soft CPU reset
301 which doesn't reset any peripherals. There are circumstances
302 where the watchdog will fail to reset the board correctly
303 (e.g., if the boot ROM is in an unreadable state).
304
305 Say N if you are unsure.
306
307 config KS8695_WATCHDOG
308 tristate "KS8695 watchdog"
309 depends on ARCH_KS8695
310 help
311 Watchdog timer embedded into KS8695 processor. This will reboot your
312 system when the timeout is reached.
313
314 config HAVE_S3C2410_WATCHDOG
315 bool
316 help
317 This will include watchdog timer support for Samsung SoCs. If
318 you want to include watchdog support for any machine, kindly
319 select this in the respective mach-XXXX/Kconfig file.
320
321 config S3C2410_WATCHDOG
322 tristate "S3C2410 Watchdog"
323 depends on HAVE_S3C2410_WATCHDOG
324 select WATCHDOG_CORE
325 select MFD_SYSCON if ARCH_EXYNOS5
326 help
327 Watchdog timer block in the Samsung SoCs. This will reboot
328 the system when the timer expires with the watchdog enabled.
329
330 The driver is limited by the speed of the system's PCLK
331 signal, so with reasonably fast systems (PCLK around 50-66MHz)
332 then watchdog intervals of over approximately 20seconds are
333 unavailable.
334
335 The driver can be built as a module by choosing M, and will
336 be called s3c2410_wdt
337
338 config SA1100_WATCHDOG
339 tristate "SA1100/PXA2xx watchdog"
340 depends on ARCH_SA1100 || ARCH_PXA
341 help
342 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
343 reboot your system when timeout is reached.
344
345 NOTE: once enabled, this timer cannot be disabled.
346
347 To compile this driver as a module, choose M here: the
348 module will be called sa1100_wdt.
349
350 config DW_WATCHDOG
351 tristate "Synopsys DesignWare watchdog"
352 depends on HAS_IOMEM
353 select WATCHDOG_CORE
354 help
355 Say Y here if to include support for the Synopsys DesignWare
356 watchdog timer found in many chips.
357 To compile this driver as a module, choose M here: the
358 module will be called dw_wdt.
359
360 config EP93XX_WATCHDOG
361 tristate "EP93xx Watchdog"
362 depends on ARCH_EP93XX
363 select WATCHDOG_CORE
364 help
365 Say Y here if to include support for the watchdog timer
366 embedded in the Cirrus Logic EP93xx family of devices.
367
368 To compile this driver as a module, choose M here: the
369 module will be called ep93xx_wdt.
370
371 config OMAP_WATCHDOG
372 tristate "OMAP Watchdog"
373 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
374 select WATCHDOG_CORE
375 help
376 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
377 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
378
379 config PNX4008_WATCHDOG
380 tristate "LPC32XX Watchdog"
381 depends on ARCH_LPC32XX
382 select WATCHDOG_CORE
383 help
384 Say Y here if to include support for the watchdog timer
385 in the LPC32XX processor.
386 This driver can be built as a module by choosing M. The module
387 will be called pnx4008_wdt.
388
389 Say N if you are unsure.
390
391 config IOP_WATCHDOG
392 tristate "IOP Watchdog"
393 depends on ARCH_IOP13XX
394 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
395 help
396 Say Y here if to include support for the watchdog timer
397 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
398 be built as a module by choosing M. The module will
399 be called iop_wdt.
400
401 Note: The IOP13XX watchdog does an Internal Bus Reset which will
402 affect both cores and the peripherals of the IOP. The ATU-X
403 and/or ATUe configuration registers will remain intact, but if
404 operating as an Root Complex and/or Central Resource, the PCI-X
405 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
406
407 config DAVINCI_WATCHDOG
408 tristate "DaVinci watchdog"
409 depends on ARCH_DAVINCI || ARCH_KEYSTONE
410 select WATCHDOG_CORE
411 help
412 Say Y here if to include support for the watchdog timer
413 in the DaVinci DM644x/DM646x or Keystone processors.
414 To compile this driver as a module, choose M here: the
415 module will be called davinci_wdt.
416
417 NOTE: once enabled, this timer cannot be disabled.
418 Say N if you are unsure.
419
420 config ORION_WATCHDOG
421 tristate "Orion watchdog"
422 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
423 depends on ARM
424 select WATCHDOG_CORE
425 help
426 Say Y here if to include support for the watchdog timer
427 in the Marvell Orion5x and Kirkwood ARM SoCs.
428 To compile this driver as a module, choose M here: the
429 module will be called orion_wdt.
430
431 config RN5T618_WATCHDOG
432 tristate "Ricoh RN5T618 watchdog"
433 depends on MFD_RN5T618
434 select WATCHDOG_CORE
435 help
436 If you say yes here you get support for watchdog on the Ricoh
437 RN5T618 PMIC.
438
439 This driver can also be built as a module. If so, the module
440 will be called rn5t618_wdt.
441
442 config SUNXI_WATCHDOG
443 tristate "Allwinner SoCs watchdog support"
444 depends on ARCH_SUNXI
445 select WATCHDOG_CORE
446 help
447 Say Y here to include support for the watchdog timer
448 in Allwinner SoCs.
449 To compile this driver as a module, choose M here: the
450 module will be called sunxi_wdt.
451
452 config COH901327_WATCHDOG
453 bool "ST-Ericsson COH 901 327 watchdog"
454 depends on ARCH_U300
455 default y if MACH_U300
456 select WATCHDOG_CORE
457 help
458 Say Y here to include Watchdog timer support for the
459 watchdog embedded into the ST-Ericsson U300 series platforms.
460 This watchdog is used to reset the system and thus cannot be
461 compiled as a module.
462
463 config TWL4030_WATCHDOG
464 tristate "TWL4030 Watchdog"
465 depends on TWL4030_CORE
466 select WATCHDOG_CORE
467 help
468 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
469 watchdog timer support for TWL4030 chips.
470
471 config STMP3XXX_RTC_WATCHDOG
472 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
473 depends on RTC_DRV_STMP
474 select WATCHDOG_CORE
475 help
476 Say Y here to include support for the watchdog timer inside
477 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
478 To compile this driver as a module, choose M here: the
479 module will be called stmp3xxx_rtc_wdt.
480
481 config NUC900_WATCHDOG
482 tristate "Nuvoton NUC900 watchdog"
483 depends on ARCH_W90X900
484 help
485 Say Y here if to include support for the watchdog timer
486 for the Nuvoton NUC900 series SoCs.
487 To compile this driver as a module, choose M here: the
488 module will be called nuc900_wdt.
489
490 config TS4800_WATCHDOG
491 tristate "TS-4800 Watchdog"
492 depends on HAS_IOMEM && OF
493 depends on SOC_IMX51 || COMPILE_TEST
494 select WATCHDOG_CORE
495 select MFD_SYSCON
496 help
497 Technologic Systems TS-4800 has watchdog timer implemented in
498 an external FPGA. Say Y here if you want to support for the
499 watchdog timer on TS-4800 board.
500
501 config TS72XX_WATCHDOG
502 tristate "TS-72XX SBC Watchdog"
503 depends on MACH_TS72XX
504 help
505 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
506 watchdog timer implemented in a external CPLD chip. Say Y here
507 if you want to support for the watchdog timer on TS-72XX boards.
508
509 To compile this driver as a module, choose M here: the
510 module will be called ts72xx_wdt.
511
512 config MAX63XX_WATCHDOG
513 tristate "Max63xx watchdog"
514 depends on HAS_IOMEM
515 select WATCHDOG_CORE
516 help
517 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
518
519 config IMX2_WDT
520 tristate "IMX2+ Watchdog"
521 depends on ARCH_MXC || ARCH_LAYERSCAPE
522 select REGMAP_MMIO
523 select WATCHDOG_CORE
524 help
525 This is the driver for the hardware watchdog
526 on the Freescale IMX2 and later processors.
527 If you have one of these processors and wish to have
528 watchdog support enabled, say Y, otherwise say N.
529
530 To compile this driver as a module, choose M here: the
531 module will be called imx2_wdt.
532
533 config UX500_WATCHDOG
534 tristate "ST-Ericsson Ux500 watchdog"
535 depends on MFD_DB8500_PRCMU
536 select WATCHDOG_CORE
537 default y
538 help
539 Say Y here to include Watchdog timer support for the watchdog
540 existing in the prcmu of ST-Ericsson Ux500 series platforms.
541
542 To compile this driver as a module, choose M here: the
543 module will be called ux500_wdt.
544
545 config RETU_WATCHDOG
546 tristate "Retu watchdog"
547 depends on MFD_RETU
548 select WATCHDOG_CORE
549 help
550 Retu watchdog driver for Nokia Internet Tablets (770, N800,
551 N810). At least on N800 the watchdog cannot be disabled, so
552 this driver is essential and you should enable it.
553
554 To compile this driver as a module, choose M here: the
555 module will be called retu_wdt.
556
557 config MOXART_WDT
558 tristate "MOXART watchdog"
559 depends on ARCH_MOXART
560 help
561 Say Y here to include Watchdog timer support for the watchdog
562 existing on the MOXA ART SoC series platforms.
563
564 To compile this driver as a module, choose M here: the
565 module will be called moxart_wdt.
566
567 config SIRFSOC_WATCHDOG
568 tristate "SiRFSOC watchdog"
569 depends on ARCH_SIRF
570 select WATCHDOG_CORE
571 default y
572 help
573 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
574 the watchdog triggers the system will be reset.
575
576 config ST_LPC_WATCHDOG
577 tristate "STMicroelectronics LPC Watchdog"
578 depends on ARCH_STI
579 depends on OF
580 select WATCHDOG_CORE
581 help
582 Say Y here to include STMicroelectronics Low Power Controller
583 (LPC) based Watchdog timer support.
584
585 To compile this driver as a module, choose M here: the
586 module will be called st_lpc_wdt.
587
588 config TEGRA_WATCHDOG
589 tristate "Tegra watchdog"
590 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
591 select WATCHDOG_CORE
592 help
593 Say Y here to include support for the watchdog timer
594 embedded in NVIDIA Tegra SoCs.
595
596 To compile this driver as a module, choose M here: the
597 module will be called tegra_wdt.
598
599 config QCOM_WDT
600 tristate "QCOM watchdog"
601 depends on HAS_IOMEM
602 depends on ARCH_QCOM
603 select WATCHDOG_CORE
604 help
605 Say Y here to include Watchdog timer support for the watchdog found
606 on QCOM chipsets. Currently supported targets are the MSM8960,
607 APQ8064, and IPQ8064.
608
609 To compile this driver as a module, choose M here: the
610 module will be called qcom_wdt.
611
612 config MESON_WATCHDOG
613 tristate "Amlogic Meson SoCs watchdog support"
614 depends on ARCH_MESON
615 select WATCHDOG_CORE
616 help
617 Say Y here to include support for the watchdog timer
618 in Amlogic Meson SoCs.
619 To compile this driver as a module, choose M here: the
620 module will be called meson_wdt.
621
622 config MEDIATEK_WATCHDOG
623 tristate "Mediatek SoCs watchdog support"
624 depends on ARCH_MEDIATEK
625 select WATCHDOG_CORE
626 help
627 Say Y here to include support for the watchdog timer
628 in Mediatek SoCs.
629 To compile this driver as a module, choose M here: the
630 module will be called mtk_wdt.
631
632 config DIGICOLOR_WATCHDOG
633 tristate "Conexant Digicolor SoCs watchdog support"
634 depends on ARCH_DIGICOLOR
635 select WATCHDOG_CORE
636 help
637 Say Y here to include support for the watchdog timer
638 in Conexant Digicolor SoCs.
639 To compile this driver as a module, choose M here: the
640 module will be called digicolor_wdt.
641
642 config LPC18XX_WATCHDOG
643 tristate "LPC18xx/43xx Watchdog"
644 depends on ARCH_LPC18XX || COMPILE_TEST
645 depends on HAS_IOMEM
646 select WATCHDOG_CORE
647 help
648 Say Y here if to include support for the watchdog timer
649 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
650 processors.
651 To compile this driver as a module, choose M here: the
652 module will be called lpc18xx_wdt.
653
654 config ATLAS7_WATCHDOG
655 tristate "CSRatlas7 watchdog"
656 depends on ARCH_ATLAS7
657 help
658 Say Y here to include Watchdog timer support for the watchdog
659 existing on the CSRatlas7 series platforms.
660
661 To compile this driver as a module, choose M here: the
662 module will be called atlas7_wdt.
663
664 config RENESAS_WDT
665 tristate "Renesas WDT Watchdog"
666 depends on ARCH_RENESAS || COMPILE_TEST
667 select WATCHDOG_CORE
668 help
669 This driver adds watchdog support for the integrated watchdogs in the
670 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
671
672 # AVR32 Architecture
673
674 config AT32AP700X_WDT
675 tristate "AT32AP700x watchdog"
676 depends on CPU_AT32AP700X
677 help
678 Watchdog timer embedded into AT32AP700x devices. This will reboot
679 your system when the timeout is reached.
680
681 # BLACKFIN Architecture
682
683 config BFIN_WDT
684 tristate "Blackfin On-Chip Watchdog Timer"
685 depends on BLACKFIN
686 ---help---
687 If you say yes here you will get support for the Blackfin On-Chip
688 Watchdog Timer. If you have one of these processors and wish to
689 have watchdog support enabled, say Y, otherwise say N.
690
691 To compile this driver as a module, choose M here: the
692 module will be called bfin_wdt.
693
694 # CRIS Architecture
695
696 # FRV Architecture
697
698 # X86 (i386 + ia64 + x86_64) Architecture
699
700 config ACQUIRE_WDT
701 tristate "Acquire SBC Watchdog Timer"
702 depends on X86
703 ---help---
704 This is the driver for the hardware watchdog on Single Board
705 Computers produced by Acquire Inc (and others). This watchdog
706 simply watches your kernel to make sure it doesn't freeze, and if
707 it does, it reboots your computer after a certain amount of time.
708
709 To compile this driver as a module, choose M here: the
710 module will be called acquirewdt.
711
712 Most people will say N.
713
714 config ADVANTECH_WDT
715 tristate "Advantech SBC Watchdog Timer"
716 depends on X86
717 help
718 If you are configuring a Linux kernel for the Advantech single-board
719 computer, say `Y' here to support its built-in watchdog timer
720 feature. More information can be found at
721 <http://www.advantech.com.tw/products/>
722
723 config ALIM1535_WDT
724 tristate "ALi M1535 PMU Watchdog Timer"
725 depends on X86 && PCI
726 ---help---
727 This is the driver for the hardware watchdog on the ALi M1535 PMU.
728
729 To compile this driver as a module, choose M here: the
730 module will be called alim1535_wdt.
731
732 Most people will say N.
733
734 config ALIM7101_WDT
735 tristate "ALi M7101 PMU Computer Watchdog"
736 depends on PCI
737 help
738 This is the driver for the hardware watchdog on the ALi M7101 PMU
739 as used in the x86 Cobalt servers and also found in some
740 SPARC Netra servers too.
741
742 To compile this driver as a module, choose M here: the
743 module will be called alim7101_wdt.
744
745 Most people will say N.
746
747 config EBC_C384_WDT
748 tristate "WinSystems EBC-C384 Watchdog Timer"
749 depends on X86 && ISA_BUS_API
750 select WATCHDOG_CORE
751 help
752 Enables watchdog timer support for the watchdog timer on the
753 WinSystems EBC-C384 motherboard. The timeout may be configured via
754 the timeout module parameter.
755
756 config F71808E_WDT
757 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
758 depends on X86
759 help
760 This is the driver for the hardware watchdog on the Fintek
761 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
762
763 You can compile this driver directly into the kernel, or use
764 it as a module. The module will be called f71808e_wdt.
765
766 config SP5100_TCO
767 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
768 depends on X86 && PCI
769 ---help---
770 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
771 (Total Cost of Ownership) timer is a watchdog timer that will reboot
772 the machine after its expiration. The expiration time can be
773 configured with the "heartbeat" parameter.
774
775 To compile this driver as a module, choose M here: the
776 module will be called sp5100_tco.
777
778 config GEODE_WDT
779 tristate "AMD Geode CS5535/CS5536 Watchdog"
780 depends on CS5535_MFGPT
781 help
782 This driver enables a watchdog capability built into the
783 CS5535/CS5536 companion chips for the AMD Geode GX and LX
784 processors. This watchdog watches your kernel to make sure
785 it doesn't freeze, and if it does, it reboots your computer after
786 a certain amount of time.
787
788 You can compile this driver directly into the kernel, or use
789 it as a module. The module will be called geodewdt.
790
791 config SC520_WDT
792 tristate "AMD Elan SC520 processor Watchdog"
793 depends on MELAN
794 help
795 This is the driver for the hardware watchdog built in to the
796 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
797 This watchdog simply watches your kernel to make sure it doesn't
798 freeze, and if it does, it reboots your computer after a certain
799 amount of time.
800
801 You can compile this driver directly into the kernel, or use
802 it as a module. The module will be called sc520_wdt.
803
804 config SBC_FITPC2_WATCHDOG
805 tristate "Compulab SBC-FITPC2 watchdog"
806 depends on X86
807 ---help---
808 This is the driver for the built-in watchdog timer on the fit-PC2,
809 fit-PC2i, CM-iAM single-board computers made by Compulab.
810
811 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
812 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
813
814 Entering BIOS setup temporary disables watchdog operation regardless to current state,
815 so system will not be restarted while user in BIOS setup.
816
817 Once watchdog was enabled the system will be restarted every
818 "Watchdog Timer Value" period, so to prevent it user can restart or
819 disable the watchdog.
820
821 To compile this driver as a module, choose M here: the
822 module will be called sbc_fitpc2_wdt.
823
824 Most people will say N.
825
826 config EUROTECH_WDT
827 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
828 depends on X86
829 help
830 Enable support for the watchdog timer on the Eurotech CPU-1220 and
831 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
832 information are at <http://www.eurotech.it/>.
833
834 config IB700_WDT
835 tristate "IB700 SBC Watchdog Timer"
836 depends on X86
837 ---help---
838 This is the driver for the hardware watchdog on the IB700 Single
839 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
840 simply watches your kernel to make sure it doesn't freeze, and if
841 it does, it reboots your computer after a certain amount of time.
842
843 This driver is like the WDT501 driver but for slightly different hardware.
844
845 To compile this driver as a module, choose M here: the
846 module will be called ib700wdt.
847
848 Most people will say N.
849
850 config IBMASR
851 tristate "IBM Automatic Server Restart"
852 depends on X86
853 help
854 This is the driver for the IBM Automatic Server Restart watchdog
855 timer built-in into some eServer xSeries machines.
856
857 To compile this driver as a module, choose M here: the
858 module will be called ibmasr.
859
860 config WAFER_WDT
861 tristate "ICP Single Board Computer Watchdog Timer"
862 depends on X86
863 help
864 This is a driver for the hardware watchdog on the ICP Single
865 Board Computer. This driver is working on (at least) the following
866 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
867
868 To compile this driver as a module, choose M here: the
869 module will be called wafer5823wdt.
870
871 config I6300ESB_WDT
872 tristate "Intel 6300ESB Timer/Watchdog"
873 depends on PCI
874 ---help---
875 Hardware driver for the watchdog timer built into the Intel
876 6300ESB controller hub.
877
878 To compile this driver as a module, choose M here: the
879 module will be called i6300esb.
880
881 config IE6XX_WDT
882 tristate "Intel Atom E6xx Watchdog"
883 depends on X86 && PCI
884 select WATCHDOG_CORE
885 select MFD_CORE
886 select LPC_SCH
887 ---help---
888 Hardware driver for the watchdog timer built into the Intel
889 Atom E6XX (TunnelCreek) processor.
890
891 To compile this driver as a module, choose M here: the
892 module will be called ie6xx_wdt.
893
894 config INTEL_SCU_WATCHDOG
895 bool "Intel SCU Watchdog for Mobile Platforms"
896 depends on X86_INTEL_MID
897 ---help---
898 Hardware driver for the watchdog time built into the Intel SCU
899 for Intel Mobile Platforms.
900
901 To compile this driver as a module, choose M here.
902
903 config INTEL_MID_WATCHDOG
904 tristate "Intel MID Watchdog Timer"
905 depends on X86_INTEL_MID
906 select WATCHDOG_CORE
907 ---help---
908 Watchdog timer driver built into the Intel SCU for Intel MID
909 Platforms.
910
911 This driver currently supports only the watchdog evolution
912 implementation in SCU, available for Merrifield generation.
913
914 To compile this driver as a module, choose M here.
915
916 config ITCO_WDT
917 tristate "Intel TCO Timer/Watchdog"
918 depends on (X86 || IA64) && PCI
919 select WATCHDOG_CORE
920 depends on I2C || I2C=n
921 select LPC_ICH if !EXPERT
922 select I2C_I801 if !EXPERT && I2C
923 ---help---
924 Hardware driver for the intel TCO timer based watchdog devices.
925 These drivers are included in the Intel 82801 I/O Controller
926 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
927 controller hub.
928
929 The TCO (Total Cost of Ownership) timer is a watchdog timer
930 that will reboot the machine after its second expiration. The
931 expiration time can be configured with the "heartbeat" parameter.
932
933 On some motherboards the driver may fail to reset the chipset's
934 NO_REBOOT flag which prevents the watchdog from rebooting the
935 machine. If this is the case you will get a kernel message like
936 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
937
938 To compile this driver as a module, choose M here: the
939 module will be called iTCO_wdt.
940
941 config ITCO_VENDOR_SUPPORT
942 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
943 depends on ITCO_WDT
944 ---help---
945 Add vendor specific support to the intel TCO timer based watchdog
946 devices. At this moment we only have additional support for some
947 SuperMicro Inc. motherboards.
948
949 config IT8712F_WDT
950 tristate "IT8712F (Smart Guardian) Watchdog Timer"
951 depends on X86
952 ---help---
953 This is the driver for the built-in watchdog timer on the IT8712F
954 Super I/0 chipset used on many motherboards.
955
956 If the driver does not work, then make sure that the game port in
957 the BIOS is enabled.
958
959 To compile this driver as a module, choose M here: the
960 module will be called it8712f_wdt.
961
962 config IT87_WDT
963 tristate "IT87 Watchdog Timer"
964 depends on X86
965 ---help---
966 This is the driver for the hardware watchdog on the ITE IT8702,
967 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
968 Super I/O chips.
969
970 If the driver does not work, then make sure that the game port in
971 the BIOS is enabled.
972
973 This watchdog simply watches your kernel to make sure it doesn't
974 freeze, and if it does, it reboots your computer after a certain
975 amount of time.
976
977 To compile this driver as a module, choose M here: the module will
978 be called it87_wdt.
979
980 config HP_WATCHDOG
981 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
982 depends on X86 && PCI
983 help
984 A software monitoring watchdog and NMI sourcing driver. This driver
985 will detect lockups and provide a stack trace. This is a driver that
986 will only load on an HP ProLiant system with a minimum of iLO2 support.
987 To compile this driver as a module, choose M here: the module will be
988 called hpwdt.
989
990 config KEMPLD_WDT
991 tristate "Kontron COM Watchdog Timer"
992 depends on MFD_KEMPLD
993 select WATCHDOG_CORE
994 help
995 Support for the PLD watchdog on some Kontron ETX and COMexpress
996 (ETXexpress) modules
997
998 This driver can also be built as a module. If so, the module will be
999 called kempld_wdt.
1000
1001 config HPWDT_NMI_DECODING
1002 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1003 depends on HP_WATCHDOG
1004 default y
1005 help
1006 When an NMI occurs this feature will make the necessary BIOS calls to
1007 log the cause of the NMI.
1008
1009 config SC1200_WDT
1010 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1011 depends on X86
1012 help
1013 This is a driver for National Semiconductor PC87307/PC97307 hardware
1014 watchdog cards as found on the SC1200. This watchdog is mainly used
1015 for power management purposes and can be used to power down the device
1016 during inactivity periods (includes interrupt activity monitoring).
1017
1018 To compile this driver as a module, choose M here: the
1019 module will be called sc1200wdt.
1020
1021 Most people will say N.
1022
1023 config SCx200_WDT
1024 tristate "National Semiconductor SCx200 Watchdog"
1025 depends on SCx200 && PCI
1026 help
1027 Enable the built-in watchdog timer support on the National
1028 Semiconductor SCx200 processors.
1029
1030 If compiled as a module, it will be called scx200_wdt.
1031
1032 config PC87413_WDT
1033 tristate "NS PC87413 watchdog"
1034 depends on X86
1035 ---help---
1036 This is the driver for the hardware watchdog on the PC87413 chipset
1037 This watchdog simply watches your kernel to make sure it doesn't
1038 freeze, and if it does, it reboots your computer after a certain
1039 amount of time.
1040
1041 To compile this driver as a module, choose M here: the
1042 module will be called pc87413_wdt.
1043
1044 Most people will say N.
1045
1046 config NV_TCO
1047 tristate "nVidia TCO Timer/Watchdog"
1048 depends on X86 && PCI
1049 ---help---
1050 Hardware driver for the TCO timer built into the nVidia Hub family
1051 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1052 watchdog timer that will reboot the machine after its second
1053 expiration. The expiration time can be configured with the
1054 "heartbeat" parameter.
1055
1056 On some motherboards the driver may fail to reset the chipset's
1057 NO_REBOOT flag which prevents the watchdog from rebooting the
1058 machine. If this is the case you will get a kernel message like
1059 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1060
1061 To compile this driver as a module, choose M here: the
1062 module will be called nv_tco.
1063
1064 config RDC321X_WDT
1065 tristate "RDC R-321x SoC watchdog"
1066 depends on X86_RDC321X
1067 help
1068 This is the driver for the built in hardware watchdog
1069 in the RDC R-321x SoC.
1070
1071 To compile this driver as a module, choose M here: the
1072 module will be called rdc321x_wdt.
1073
1074 config 60XX_WDT
1075 tristate "SBC-60XX Watchdog Timer"
1076 depends on X86
1077 help
1078 This driver can be used with the watchdog timer found on some
1079 single board computers, namely the 6010 PII based computer.
1080 It may well work with other cards. It reads port 0x443 to enable
1081 and re-set the watchdog timer, and reads port 0x45 to disable
1082 the watchdog. If you have a card that behave in similar ways,
1083 you can probably make this driver work with your card as well.
1084
1085 You can compile this driver directly into the kernel, or use
1086 it as a module. The module will be called sbc60xxwdt.
1087
1088 config SBC8360_WDT
1089 tristate "SBC8360 Watchdog Timer"
1090 depends on X86_32
1091 ---help---
1092
1093 This is the driver for the hardware watchdog on the SBC8360 Single
1094 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1095
1096 To compile this driver as a module, choose M here: the
1097 module will be called sbc8360.
1098
1099 Most people will say N.
1100
1101 config SBC7240_WDT
1102 tristate "SBC Nano 7240 Watchdog Timer"
1103 depends on X86_32 && !UML
1104 ---help---
1105 This is the driver for the hardware watchdog found on the IEI
1106 single board computers EPIC Nano 7240 (and likely others). This
1107 watchdog simply watches your kernel to make sure it doesn't freeze,
1108 and if it does, it reboots your computer after a certain amount of
1109 time.
1110
1111 To compile this driver as a module, choose M here: the
1112 module will be called sbc7240_wdt.
1113
1114 config CPU5_WDT
1115 tristate "SMA CPU5 Watchdog"
1116 depends on X86
1117 ---help---
1118 TBD.
1119 To compile this driver as a module, choose M here: the
1120 module will be called cpu5wdt.
1121
1122 config SMSC_SCH311X_WDT
1123 tristate "SMSC SCH311X Watchdog Timer"
1124 depends on X86
1125 ---help---
1126 This is the driver for the hardware watchdog timer on the
1127 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1128 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1129 serial ports).
1130
1131 To compile this driver as a module, choose M here: the
1132 module will be called sch311x_wdt.
1133
1134 config SMSC37B787_WDT
1135 tristate "Winbond SMsC37B787 Watchdog Timer"
1136 depends on X86
1137 ---help---
1138 This is the driver for the hardware watchdog component on the
1139 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1140 from Vision Systems and maybe others.
1141
1142 This watchdog simply watches your kernel to make sure it doesn't
1143 freeze, and if it does, it reboots your computer after a certain
1144 amount of time.
1145
1146 Usually a userspace daemon will notify the kernel WDT driver that
1147 userspace is still alive, at regular intervals.
1148
1149 To compile this driver as a module, choose M here: the
1150 module will be called smsc37b787_wdt.
1151
1152 Most people will say N.
1153
1154 config VIA_WDT
1155 tristate "VIA Watchdog Timer"
1156 depends on X86 && PCI
1157 select WATCHDOG_CORE
1158 ---help---
1159 This is the driver for the hardware watchdog timer on VIA
1160 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1161
1162 To compile this driver as a module, choose M here; the module
1163 will be called via_wdt.
1164
1165 Most people will say N.
1166
1167 config W83627HF_WDT
1168 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1169 depends on X86
1170 select WATCHDOG_CORE
1171 ---help---
1172 This is the driver for the hardware watchdog on the following
1173 Super I/O chips.
1174 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1175 W83637HF
1176 W83667HG/HG-B
1177 W83687THF
1178 W83697HF
1179 W83697UG
1180 NCT6775
1181 NCT6776
1182 NCT6779
1183 NCT6791
1184 NCT6792
1185 NCT6102D/04D/06D
1186
1187 This watchdog simply watches your kernel to make sure it doesn't
1188 freeze, and if it does, it reboots your computer after a certain
1189 amount of time.
1190
1191 To compile this driver as a module, choose M here: the
1192 module will be called w83627hf_wdt.
1193
1194 Most people will say N.
1195
1196 config W83877F_WDT
1197 tristate "W83877F (EMACS) Watchdog Timer"
1198 depends on X86
1199 ---help---
1200 This is the driver for the hardware watchdog on the W83877F chipset
1201 as used in EMACS PC-104 motherboards (and likely others). This
1202 watchdog simply watches your kernel to make sure it doesn't freeze,
1203 and if it does, it reboots your computer after a certain amount of
1204 time.
1205
1206 To compile this driver as a module, choose M here: the
1207 module will be called w83877f_wdt.
1208
1209 Most people will say N.
1210
1211 config W83977F_WDT
1212 tristate "W83977F (PCM-5335) Watchdog Timer"
1213 depends on X86
1214 ---help---
1215 This is the driver for the hardware watchdog on the W83977F I/O chip
1216 as used in AAEON's PCM-5335 SBC (and likely others). This
1217 watchdog simply watches your kernel to make sure it doesn't freeze,
1218 and if it does, it reboots your computer after a certain amount of
1219 time.
1220
1221 To compile this driver as a module, choose M here: the
1222 module will be called w83977f_wdt.
1223
1224 config MACHZ_WDT
1225 tristate "ZF MachZ Watchdog"
1226 depends on X86
1227 ---help---
1228 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1229 N. This is the driver for the watchdog timer built-in on that
1230 processor using ZF-Logic interface. This watchdog simply watches
1231 your kernel to make sure it doesn't freeze, and if it does, it
1232 reboots your computer after a certain amount of time.
1233
1234 To compile this driver as a module, choose M here: the
1235 module will be called machzwd.
1236
1237 config SBC_EPX_C3_WATCHDOG
1238 tristate "Winsystems SBC EPX-C3 watchdog"
1239 depends on X86
1240 ---help---
1241 This is the driver for the built-in watchdog timer on the EPX-C3
1242 Single-board computer made by Winsystems, Inc.
1243
1244 *Note*: This hardware watchdog is not probeable and thus there
1245 is no way to know if writing to its IO address will corrupt
1246 your system or have any real effect. The only way to be sure
1247 that this driver does what you want is to make sure you
1248 are running it on an EPX-C3 from Winsystems with the watchdog
1249 timer at IO address 0x1ee and 0x1ef. It will write to both those
1250 IO ports. Basically, the assumption is made that if you compile
1251 this driver into your kernel and/or load it as a module, that you
1252 know what you are doing and that you are in fact running on an
1253 EPX-C3 board!
1254
1255 To compile this driver as a module, choose M here: the
1256 module will be called sbc_epx_c3.
1257
1258 config INTEL_MEI_WDT
1259 tristate "Intel MEI iAMT Watchdog"
1260 depends on INTEL_MEI && X86
1261 select WATCHDOG_CORE
1262 ---help---
1263 A device driver for the Intel MEI iAMT watchdog.
1264
1265 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1266 Whenever the OS hangs or crashes, iAMT will send an event
1267 to any subscriber to this event. The watchdog doesn't reset the
1268 the platform.
1269
1270 To compile this driver as a module, choose M here:
1271 the module will be called mei_wdt.
1272
1273 config NI903X_WDT
1274 tristate "NI 903x/913x Watchdog"
1275 depends on X86 && ACPI
1276 select WATCHDOG_CORE
1277 ---help---
1278 This is the driver for the watchdog timer on the National Instruments
1279 903x/913x real-time controllers.
1280
1281 To compile this driver as a module, choose M here: the module will be
1282 called ni903x_wdt.
1283
1284 # M32R Architecture
1285
1286 # M68K Architecture
1287
1288 config M54xx_WATCHDOG
1289 tristate "MCF54xx watchdog support"
1290 depends on M548x
1291 help
1292 To compile this driver as a module, choose M here: the
1293 module will be called m54xx_wdt.
1294
1295 # MicroBlaze Architecture
1296
1297 # MIPS Architecture
1298
1299 config ATH79_WDT
1300 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1301 depends on ATH79
1302 help
1303 Hardware driver for the built-in watchdog timer on the Atheros
1304 AR71XX/AR724X/AR913X SoCs.
1305
1306 config BCM47XX_WDT
1307 tristate "Broadcom BCM47xx Watchdog Timer"
1308 depends on BCM47XX || ARCH_BCM_5301X
1309 select WATCHDOG_CORE
1310 help
1311 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1312
1313 config RC32434_WDT
1314 tristate "IDT RC32434 SoC Watchdog Timer"
1315 depends on MIKROTIK_RB532
1316 help
1317 Hardware driver for the IDT RC32434 SoC built-in
1318 watchdog timer.
1319
1320 To compile this driver as a module, choose M here: the
1321 module will be called rc32434_wdt.
1322
1323 config INDYDOG
1324 tristate "Indy/I2 Hardware Watchdog"
1325 depends on SGI_HAS_INDYDOG
1326 help
1327 Hardware driver for the Indy's/I2's watchdog. This is a
1328 watchdog timer that will reboot the machine after a 60 second
1329 timer expired and no process has written to /dev/watchdog during
1330 that time.
1331
1332 config JZ4740_WDT
1333 tristate "Ingenic jz4740 SoC hardware watchdog"
1334 depends on MACH_JZ4740
1335 select WATCHDOG_CORE
1336 help
1337 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1338
1339 config WDT_MTX1
1340 tristate "MTX-1 Hardware Watchdog"
1341 depends on MIPS_MTX1
1342 help
1343 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1344 will reboot the machine after a 100 seconds timer expired.
1345
1346 config PNX833X_WDT
1347 tristate "PNX833x Hardware Watchdog"
1348 depends on SOC_PNX8335
1349 help
1350 Hardware driver for the PNX833x's watchdog. This is a
1351 watchdog timer that will reboot the machine after a programmable
1352 timer has expired and no process has written to /dev/watchdog during
1353 that time.
1354
1355 config SIBYTE_WDOG
1356 tristate "Sibyte SoC hardware watchdog"
1357 depends on CPU_SB1
1358 help
1359 Watchdog driver for the built in watchdog hardware in Sibyte
1360 SoC processors. There are apparently two watchdog timers
1361 on such processors; this driver supports only the first one,
1362 because currently Linux only supports exporting one watchdog
1363 to userspace.
1364
1365 To compile this driver as a loadable module, choose M here.
1366 The module will be called sb_wdog.
1367
1368 config AR7_WDT
1369 tristate "TI AR7 Watchdog Timer"
1370 depends on AR7
1371 help
1372 Hardware driver for the TI AR7 Watchdog Timer.
1373
1374 config TXX9_WDT
1375 tristate "Toshiba TXx9 Watchdog Timer"
1376 depends on CPU_TX39XX || CPU_TX49XX
1377 select WATCHDOG_CORE
1378 help
1379 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1380
1381 config OCTEON_WDT
1382 tristate "Cavium OCTEON SOC family Watchdog Timer"
1383 depends on CAVIUM_OCTEON_SOC
1384 default y
1385 select WATCHDOG_CORE
1386 select EXPORT_UASM if OCTEON_WDT = m
1387 help
1388 Hardware driver for OCTEON's on chip watchdog timer.
1389 Enables the watchdog for all cores running Linux. It
1390 installs a NMI handler and pokes the watchdog based on an
1391 interrupt. On first expiration of the watchdog, the
1392 interrupt handler pokes it. The second expiration causes an
1393 NMI that prints a message. The third expiration causes a
1394 global soft reset.
1395
1396 When userspace has /dev/watchdog open, no poking is done
1397 from the first interrupt, it is then only poked when the
1398 device is written.
1399
1400 config BCM63XX_WDT
1401 tristate "Broadcom BCM63xx hardware watchdog"
1402 depends on BCM63XX
1403 help
1404 Watchdog driver for the built in watchdog hardware in Broadcom
1405 BCM63xx SoC.
1406
1407 To compile this driver as a loadable module, choose M here.
1408 The module will be called bcm63xx_wdt.
1409
1410 config BCM2835_WDT
1411 tristate "Broadcom BCM2835 hardware watchdog"
1412 depends on ARCH_BCM2835
1413 select WATCHDOG_CORE
1414 help
1415 Watchdog driver for the built in watchdog hardware in Broadcom
1416 BCM2835 SoC.
1417
1418 To compile this driver as a loadable module, choose M here.
1419 The module will be called bcm2835_wdt.
1420
1421 config BCM_KONA_WDT
1422 tristate "BCM Kona Watchdog"
1423 depends on ARCH_BCM_MOBILE
1424 select WATCHDOG_CORE
1425 help
1426 Support for the watchdog timer on the following Broadcom BCM281xx
1427 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1428 BCM28155 variants.
1429
1430 Say 'Y' or 'M' here to enable the driver. The module will be called
1431 bcm_kona_wdt.
1432
1433 config BCM_KONA_WDT_DEBUG
1434 bool "DEBUGFS support for BCM Kona Watchdog"
1435 depends on BCM_KONA_WDT
1436 help
1437 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1438 access to the driver's internal data structures as well as watchdog
1439 timer hardware registres.
1440
1441 If in doubt, say 'N'.
1442
1443 config BCM7038_WDT
1444 tristate "BCM7038 Watchdog"
1445 select WATCHDOG_CORE
1446 depends on HAS_IOMEM
1447 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1448 help
1449 Watchdog driver for the built-in hardware in Broadcom 7038 and
1450 later SoCs used in set-top boxes. BCM7038 was made public
1451 during the 2004 CES, and since then, many Broadcom chips use this
1452 watchdog block, including some cable modem chips.
1453
1454 config IMGPDC_WDT
1455 tristate "Imagination Technologies PDC Watchdog Timer"
1456 depends on HAS_IOMEM
1457 depends on METAG || MIPS || COMPILE_TEST
1458 select WATCHDOG_CORE
1459 help
1460 Driver for Imagination Technologies PowerDown Controller
1461 Watchdog Timer.
1462
1463 To compile this driver as a loadable module, choose M here.
1464 The module will be called imgpdc_wdt.
1465
1466 config LANTIQ_WDT
1467 tristate "Lantiq SoC watchdog"
1468 depends on LANTIQ
1469 help
1470 Hardware driver for the Lantiq SoC Watchdog Timer.
1471
1472 config RALINK_WDT
1473 tristate "Ralink SoC watchdog"
1474 select WATCHDOG_CORE
1475 depends on RALINK
1476 help
1477 Hardware driver for the Ralink SoC Watchdog Timer.
1478
1479 config MT7621_WDT
1480 tristate "Mediatek SoC watchdog"
1481 select WATCHDOG_CORE
1482 depends on SOC_MT7620 || SOC_MT7621
1483 help
1484 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1485
1486 config PIC32_WDT
1487 tristate "Microchip PIC32 hardware watchdog"
1488 select WATCHDOG_CORE
1489 depends on MACH_PIC32
1490 help
1491 Watchdog driver for the built in watchdog hardware in a PIC32.
1492
1493 Configuration bits must be set appropriately for the watchdog to be
1494 controlled by this driver.
1495
1496 To compile this driver as a loadable module, choose M here.
1497 The module will be called pic32-wdt.
1498
1499 config PIC32_DMT
1500 tristate "Microchip PIC32 Deadman Timer"
1501 select WATCHDOG_CORE
1502 depends on MACH_PIC32
1503 help
1504 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1505 timer is typically be used in misson critical and safety critical
1506 applications, where any single failure of the software functionality
1507 and sequencing must be detected.
1508
1509 To compile this driver as a loadable module, choose M here.
1510 The module will be called pic32-dmt.
1511
1512 # PARISC Architecture
1513
1514 # POWERPC Architecture
1515
1516 config GEF_WDT
1517 tristate "GE Watchdog Timer"
1518 depends on GE_FPGA
1519 ---help---
1520 Watchdog timer found in a number of GE single board computers.
1521
1522 config MPC5200_WDT
1523 bool "MPC52xx Watchdog Timer"
1524 depends on PPC_MPC52xx
1525 help
1526 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1527
1528 config 8xxx_WDT
1529 tristate "MPC8xxx Platform Watchdog Timer"
1530 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1531 select WATCHDOG_CORE
1532 help
1533 This driver is for a SoC level watchdog that exists on some
1534 Freescale PowerPC processors. So far this driver supports:
1535 - MPC8xx watchdogs
1536 - MPC83xx watchdogs
1537 - MPC86xx watchdogs
1538
1539 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1540
1541 config MV64X60_WDT
1542 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1543 depends on MV64X60
1544
1545 config PIKA_WDT
1546 tristate "PIKA FPGA Watchdog"
1547 depends on WARP
1548 default y
1549 help
1550 This enables the watchdog in the PIKA FPGA. Currently used on
1551 the Warp platform.
1552
1553 config BOOKE_WDT
1554 tristate "PowerPC Book-E Watchdog Timer"
1555 depends on BOOKE || 4xx
1556 select WATCHDOG_CORE
1557 ---help---
1558 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1559 MPC85xx SOCs and the IBM PowerPC 440.
1560
1561 Please see Documentation/watchdog/watchdog-api.txt for
1562 more information.
1563
1564 config BOOKE_WDT_DEFAULT_TIMEOUT
1565 int "PowerPC Book-E Watchdog Timer Default Timeout"
1566 depends on BOOKE_WDT
1567 default 38 if PPC_FSL_BOOK3E
1568 range 0 63 if PPC_FSL_BOOK3E
1569 default 3 if !PPC_FSL_BOOK3E
1570 range 0 3 if !PPC_FSL_BOOK3E
1571 help
1572 Select the default watchdog timer period to be used by the PowerPC
1573 Book-E watchdog driver. A watchdog "event" occurs when the bit
1574 position represented by this number transitions from zero to one.
1575
1576 For Freescale Book-E processors, this is a number between 0 and 63.
1577 For other Book-E processors, this is a number between 0 and 3.
1578
1579 The value can be overridden by the wdt_period command-line parameter.
1580
1581 config MEN_A21_WDT
1582 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1583 select WATCHDOG_CORE
1584 depends on GPIOLIB || COMPILE_TEST
1585 help
1586 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1587
1588 The driver can also be built as a module. If so, the module will be
1589 called mena21_wdt.
1590
1591 If unsure select N here.
1592
1593 # PPC64 Architecture
1594
1595 config WATCHDOG_RTAS
1596 tristate "RTAS watchdog"
1597 depends on PPC_RTAS
1598 help
1599 This driver adds watchdog support for the RTAS watchdog.
1600
1601 To compile this driver as a module, choose M here. The module
1602 will be called wdrtas.
1603
1604 # S390 Architecture
1605
1606 config DIAG288_WATCHDOG
1607 tristate "System z diag288 Watchdog"
1608 depends on S390
1609 select WATCHDOG_CORE
1610 help
1611 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1612 provide a virtual watchdog timer to their guest that cause a
1613 user define Control Program command to be executed after a
1614 timeout.
1615 LPAR provides a very similar interface. This driver handles
1616 both.
1617
1618 To compile this driver as a module, choose M here. The module
1619 will be called diag288_wdt.
1620
1621 # SUPERH (sh + sh64) Architecture
1622
1623 config SH_WDT
1624 tristate "SuperH Watchdog"
1625 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1626 select WATCHDOG_CORE
1627 help
1628 This driver adds watchdog support for the integrated watchdog in the
1629 SuperH processors. If you have one of these processors and wish
1630 to have watchdog support enabled, say Y, otherwise say N.
1631
1632 As a side note, saying Y here will automatically boost HZ to 1000
1633 so that the timer has a chance to clear the overflow counter. On
1634 slower systems (such as the SH-2 and SH-3) this will likely yield
1635 some performance issues. As such, the WDT should be avoided here
1636 unless it is absolutely necessary.
1637
1638 To compile this driver as a module, choose M here: the
1639 module will be called shwdt.
1640
1641 # SPARC Architecture
1642
1643 # SPARC64 Architecture
1644
1645 config WATCHDOG_CP1XXX
1646 tristate "CP1XXX Hardware Watchdog support"
1647 depends on SPARC64 && PCI
1648 ---help---
1649 This is the driver for the hardware watchdog timers present on
1650 Sun Microsystems CompactPCI models CP1400 and CP1500.
1651
1652 To compile this driver as a module, choose M here: the
1653 module will be called cpwatchdog.
1654
1655 If you do not have a CompactPCI model CP1400 or CP1500, or
1656 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1657 you should say N to this option.
1658
1659 config WATCHDOG_RIO
1660 tristate "RIO Hardware Watchdog support"
1661 depends on SPARC64 && PCI
1662 help
1663 Say Y here to support the hardware watchdog capability on Sun RIO
1664 machines. The watchdog timeout period is normally one minute but
1665 can be changed with a boot-time parameter.
1666
1667 config WATCHDOG_SUN4V
1668 tristate "Sun4v Watchdog support"
1669 select WATCHDOG_CORE
1670 depends on SPARC64
1671 help
1672 Say Y here to support the hypervisor watchdog capability embedded
1673 in the SPARC sun4v architecture.
1674
1675 To compile this driver as a module, choose M here. The module will
1676 be called sun4v_wdt.
1677
1678 # XTENSA Architecture
1679
1680 # Xen Architecture
1681
1682 config XEN_WDT
1683 tristate "Xen Watchdog support"
1684 depends on XEN
1685 help
1686 Say Y here to support the hypervisor watchdog capability provided
1687 by Xen 4.0 and newer. The watchdog timeout period is normally one
1688 minute but can be changed with a boot-time parameter.
1689
1690 config UML_WATCHDOG
1691 tristate "UML watchdog"
1692 depends on UML
1693
1694 #
1695 # ISA-based Watchdog Cards
1696 #
1697
1698 comment "ISA-based Watchdog Cards"
1699 depends on ISA
1700
1701 config PCWATCHDOG
1702 tristate "Berkshire Products ISA-PC Watchdog"
1703 depends on ISA
1704 ---help---
1705 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1706 This card simply watches your kernel to make sure it doesn't freeze,
1707 and if it does, it reboots your computer after a certain amount of
1708 time. This driver is like the WDT501 driver but for different
1709 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1710 watchdog cards can be ordered from <http://www.berkprod.com/>.
1711
1712 To compile this driver as a module, choose M here: the
1713 module will be called pcwd.
1714
1715 Most people will say N.
1716
1717 config MIXCOMWD
1718 tristate "Mixcom Watchdog"
1719 depends on ISA
1720 ---help---
1721 This is a driver for the Mixcom hardware watchdog cards. This
1722 watchdog simply watches your kernel to make sure it doesn't freeze,
1723 and if it does, it reboots your computer after a certain amount of
1724 time.
1725
1726 To compile this driver as a module, choose M here: the
1727 module will be called mixcomwd.
1728
1729 Most people will say N.
1730
1731 config WDT
1732 tristate "WDT Watchdog timer"
1733 depends on ISA
1734 ---help---
1735 If you have a WDT500P or WDT501P watchdog board, say Y here,
1736 otherwise N. It is not possible to probe for this board, which means
1737 that you have to inform the kernel about the IO port and IRQ that
1738 is needed (you can do this via the io and irq parameters)
1739
1740 To compile this driver as a module, choose M here: the
1741 module will be called wdt.
1742
1743 #
1744 # PCI-based Watchdog Cards
1745 #
1746
1747 comment "PCI-based Watchdog Cards"
1748 depends on PCI
1749
1750 config PCIPCWATCHDOG
1751 tristate "Berkshire Products PCI-PC Watchdog"
1752 depends on PCI
1753 ---help---
1754 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1755 This card simply watches your kernel to make sure it doesn't freeze,
1756 and if it does, it reboots your computer after a certain amount of
1757 time. The card can also monitor the internal temperature of the PC.
1758 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1759
1760 To compile this driver as a module, choose M here: the
1761 module will be called pcwd_pci.
1762
1763 Most people will say N.
1764
1765 config WDTPCI
1766 tristate "PCI-WDT500/501 Watchdog timer"
1767 depends on PCI
1768 ---help---
1769 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1770
1771 If you have a PCI-WDT501 watchdog board then you can enable the
1772 temperature sensor by setting the type parameter to 501.
1773
1774 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1775 can do this via the tachometer parameter. Only do this if you have a
1776 fan tachometer actually set up.
1777
1778 To compile this driver as a module, choose M here: the
1779 module will be called wdt_pci.
1780
1781 #
1782 # USB-based Watchdog Cards
1783 #
1784
1785 comment "USB-based Watchdog Cards"
1786 depends on USB
1787
1788 config USBPCWATCHDOG
1789 tristate "Berkshire Products USB-PC Watchdog"
1790 depends on USB
1791 ---help---
1792 This is the driver for the Berkshire Products USB-PC Watchdog card.
1793 This card simply watches your kernel to make sure it doesn't freeze,
1794 and if it does, it reboots your computer after a certain amount of
1795 time. The card can also monitor the internal temperature of the PC.
1796 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1797
1798 To compile this driver as a module, choose M here: the
1799 module will be called pcwd_usb.
1800
1801 Most people will say N.
1802
1803 endif # WATCHDOG