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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 help
52 Say Y here if you want to enable watchdog device status read through
53 sysfs attributes.
54
55 #
56 # General Watchdog drivers
57 #
58
59 comment "Watchdog Device Drivers"
60
61 # Architecture Independent
62
63 config SOFT_WATCHDOG
64 tristate "Software watchdog"
65 select WATCHDOG_CORE
66 help
67 A software monitoring watchdog. This will fail to reboot your system
68 from some situations that the hardware watchdog will recover
69 from. Equally it's a lot cheaper to install.
70
71 To compile this driver as a module, choose M here: the
72 module will be called softdog.
73
74 config SOFT_WATCHDOG_PRETIMEOUT
75 bool "Software watchdog pretimeout governor support"
76 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
77 help
78 Enable this if you want to use pretimeout governors with the software
79 watchdog. Be aware that governors might affect the watchdog because it
80 is purely software, e.g. the panic governor will stall it!
81
82 config DA9052_WATCHDOG
83 tristate "Dialog DA9052 Watchdog"
84 depends on PMIC_DA9052 || COMPILE_TEST
85 select WATCHDOG_CORE
86 help
87 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
88 cause system reset.
89
90 Say Y here to include support for the DA9052 watchdog.
91 Alternatively say M to compile the driver as a module,
92 which will be called da9052_wdt.
93
94 config DA9055_WATCHDOG
95 tristate "Dialog Semiconductor DA9055 Watchdog"
96 depends on MFD_DA9055 || COMPILE_TEST
97 select WATCHDOG_CORE
98 help
99 If you say yes here you get support for watchdog on the Dialog
100 Semiconductor DA9055 PMIC.
101
102 This driver can also be built as a module. If so, the module
103 will be called da9055_wdt.
104
105 config DA9063_WATCHDOG
106 tristate "Dialog DA9063 Watchdog"
107 depends on MFD_DA9063 || COMPILE_TEST
108 select WATCHDOG_CORE
109 help
110 Support for the watchdog in the DA9063 PMIC.
111
112 This driver can be built as a module. The module name is da9063_wdt.
113
114 config DA9062_WATCHDOG
115 tristate "Dialog DA9062/61 Watchdog"
116 depends on MFD_DA9062 || COMPILE_TEST
117 select WATCHDOG_CORE
118 help
119 Support for the watchdog in the DA9062 and DA9061 PMICs.
120
121 This driver can be built as a module. The module name is da9062_wdt.
122
123 config GPIO_WATCHDOG
124 tristate "Watchdog device controlled through GPIO-line"
125 depends on OF_GPIO
126 select WATCHDOG_CORE
127 help
128 If you say yes here you get support for watchdog device
129 controlled through GPIO-line.
130
131 config GPIO_WATCHDOG_ARCH_INITCALL
132 bool "Register the watchdog as early as possible"
133 depends on GPIO_WATCHDOG=y
134 help
135 In some situations, the default initcall level (module_init)
136 in not early enough in the boot process to avoid the watchdog
137 to be triggered.
138 If you say yes here, the initcall level would be raised to
139 arch_initcall.
140 If in doubt, say N.
141
142 config MENF21BMC_WATCHDOG
143 tristate "MEN 14F021P00 BMC Watchdog"
144 depends on MFD_MENF21BMC || COMPILE_TEST
145 select WATCHDOG_CORE
146 help
147 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
148
149 This driver can also be built as a module. If so the module
150 will be called menf21bmc_wdt.
151
152 config TANGOX_WATCHDOG
153 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
154 select WATCHDOG_CORE
155 depends on ARCH_TANGO || COMPILE_TEST
156 depends on HAS_IOMEM
157 help
158 Support for the watchdog in Sigma Designs SMP86xx (tango3)
159 and SMP87xx (tango4) family chips.
160
161 This driver can be built as a module. The module name is tangox_wdt.
162
163 config WDAT_WDT
164 tristate "ACPI Watchdog Action Table (WDAT)"
165 depends on ACPI
166 select WATCHDOG_CORE
167 select ACPI_WATCHDOG
168 help
169 This driver adds support for systems with ACPI Watchdog Action
170 Table (WDAT) table. Servers typically have this but it can be
171 found on some desktop machines as well. This driver will take
172 over the native iTCO watchdog driver found on many Intel CPUs.
173
174 To compile this driver as module, choose M here: the module will
175 be called wdat_wdt.
176
177 config WM831X_WATCHDOG
178 tristate "WM831x watchdog"
179 depends on MFD_WM831X || COMPILE_TEST
180 select WATCHDOG_CORE
181 help
182 Support for the watchdog in the WM831x AudioPlus PMICs. When
183 the watchdog triggers the system will be reset.
184
185 config WM8350_WATCHDOG
186 tristate "WM8350 watchdog"
187 depends on MFD_WM8350
188 select WATCHDOG_CORE
189 help
190 Support for the watchdog in the WM8350 AudioPlus PMIC. When
191 the watchdog triggers the system will be reset.
192
193 config XILINX_WATCHDOG
194 tristate "Xilinx Watchdog timer"
195 depends on HAS_IOMEM
196 select WATCHDOG_CORE
197 help
198 Watchdog driver for the xps_timebase_wdt ip core.
199
200 To compile this driver as a module, choose M here: the
201 module will be called of_xilinx_wdt.
202
203 config ZIIRAVE_WATCHDOG
204 tristate "Zodiac RAVE Watchdog Timer"
205 depends on I2C
206 select WATCHDOG_CORE
207 help
208 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
209 Processor.
210
211 To compile this driver as a module, choose M here: the
212 module will be called ziirave_wdt.
213
214 # ALPHA Architecture
215
216 # ARM Architecture
217
218 config ARM_SP805_WATCHDOG
219 tristate "ARM SP805 Watchdog"
220 depends on (ARM || ARM64) && (ARM_AMBA || COMPILE_TEST)
221 select WATCHDOG_CORE
222 help
223 ARM Primecell SP805 Watchdog timer. This will reboot your system when
224 the timeout is reached.
225
226 config ARM_SBSA_WATCHDOG
227 tristate "ARM SBSA Generic Watchdog"
228 depends on ARM64
229 depends on ARM_ARCH_TIMER
230 select WATCHDOG_CORE
231 help
232 ARM SBSA Generic Watchdog has two stage timeouts:
233 the first signal (WS0) is for alerting the system by interrupt,
234 the second one (WS1) is a real hardware reset.
235 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
236
237 This driver can operate ARM SBSA Generic Watchdog as a single stage
238 or a two stages watchdog, it depends on the module parameter "action".
239
240 Note: the maximum timeout in the two stages mode is half of that in
241 the single stage mode.
242
243 To compile this driver as module, choose M here: The module
244 will be called sbsa_gwdt.
245
246 config ASM9260_WATCHDOG
247 tristate "Alphascale ASM9260 watchdog"
248 depends on MACH_ASM9260 || COMPILE_TEST
249 depends on OF
250 select WATCHDOG_CORE
251 select RESET_CONTROLLER
252 help
253 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
254 system when the timeout is reached.
255
256 config AT91RM9200_WATCHDOG
257 tristate "AT91RM9200 watchdog"
258 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
259 help
260 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
261 system when the timeout is reached.
262
263 config AT91SAM9X_WATCHDOG
264 tristate "AT91SAM9X / AT91CAP9 watchdog"
265 depends on ARCH_AT91 || COMPILE_TEST
266 select WATCHDOG_CORE
267 help
268 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
269 reboot your system when the timeout is reached.
270
271 config SAMA5D4_WATCHDOG
272 tristate "Atmel SAMA5D4 Watchdog Timer"
273 depends on ARCH_AT91 || COMPILE_TEST
274 select WATCHDOG_CORE
275 help
276 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
277 Its Watchdog Timer Mode Register can be written more than once.
278 This will reboot your system when the timeout is reached.
279
280 config CADENCE_WATCHDOG
281 tristate "Cadence Watchdog Timer"
282 depends on HAS_IOMEM
283 select WATCHDOG_CORE
284 help
285 Say Y here if you want to include support for the watchdog
286 timer in the Xilinx Zynq.
287
288 config 21285_WATCHDOG
289 tristate "DC21285 watchdog"
290 depends on FOOTBRIDGE
291 help
292 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
293 here if you wish to use this. Alternatively say M to compile the
294 driver as a module, which will be called wdt285.
295
296 This driver does not work on all machines. In particular, early CATS
297 boards have hardware problems that will cause the machine to simply
298 lock up if the watchdog fires.
299
300 "If in doubt, leave it out" - say N.
301
302 config 977_WATCHDOG
303 tristate "NetWinder WB83C977 watchdog"
304 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
305 help
306 Say Y here to include support for the WB977 watchdog included in
307 NetWinder machines. Alternatively say M to compile the driver as
308 a module, which will be called wdt977.
309
310 Not sure? It's safe to say N.
311
312 config GEMINI_WATCHDOG
313 tristate "Gemini watchdog"
314 depends on ARCH_GEMINI
315 select WATCHDOG_CORE
316 help
317 Say Y here if to include support for the watchdog timer
318 embedded in the Cortina Systems Gemini family of devices.
319
320 To compile this driver as a module, choose M here: the
321 module will be called gemini_wdt.
322
323 config IXP4XX_WATCHDOG
324 tristate "IXP4xx Watchdog"
325 depends on ARCH_IXP4XX
326 help
327 Say Y here if to include support for the watchdog timer
328 in the Intel IXP4xx network processors. This driver can
329 be built as a module by choosing M. The module will
330 be called ixp4xx_wdt.
331
332 Note: The internal IXP4xx watchdog does a soft CPU reset
333 which doesn't reset any peripherals. There are circumstances
334 where the watchdog will fail to reset the board correctly
335 (e.g., if the boot ROM is in an unreadable state).
336
337 Say N if you are unsure.
338
339 config KS8695_WATCHDOG
340 tristate "KS8695 watchdog"
341 depends on ARCH_KS8695
342 help
343 Watchdog timer embedded into KS8695 processor. This will reboot your
344 system when the timeout is reached.
345
346 config HAVE_S3C2410_WATCHDOG
347 bool
348 help
349 This will include watchdog timer support for Samsung SoCs. If
350 you want to include watchdog support for any machine, kindly
351 select this in the respective mach-XXXX/Kconfig file.
352
353 config S3C2410_WATCHDOG
354 tristate "S3C2410 Watchdog"
355 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
356 select WATCHDOG_CORE
357 select MFD_SYSCON if ARCH_EXYNOS
358 help
359 Watchdog timer block in the Samsung SoCs. This will reboot
360 the system when the timer expires with the watchdog enabled.
361
362 The driver is limited by the speed of the system's PCLK
363 signal, so with reasonably fast systems (PCLK around 50-66MHz)
364 then watchdog intervals of over approximately 20seconds are
365 unavailable.
366
367 The driver can be built as a module by choosing M, and will
368 be called s3c2410_wdt
369
370 config SA1100_WATCHDOG
371 tristate "SA1100/PXA2xx watchdog"
372 depends on ARCH_SA1100 || ARCH_PXA
373 help
374 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
375 reboot your system when timeout is reached.
376
377 NOTE: once enabled, this timer cannot be disabled.
378
379 To compile this driver as a module, choose M here: the
380 module will be called sa1100_wdt.
381
382 config DW_WATCHDOG
383 tristate "Synopsys DesignWare watchdog"
384 depends on HAS_IOMEM
385 select WATCHDOG_CORE
386 help
387 Say Y here if to include support for the Synopsys DesignWare
388 watchdog timer found in many chips.
389 To compile this driver as a module, choose M here: the
390 module will be called dw_wdt.
391
392 config EP93XX_WATCHDOG
393 tristate "EP93xx Watchdog"
394 depends on ARCH_EP93XX || COMPILE_TEST
395 select WATCHDOG_CORE
396 help
397 Say Y here if to include support for the watchdog timer
398 embedded in the Cirrus Logic EP93xx family of devices.
399
400 To compile this driver as a module, choose M here: the
401 module will be called ep93xx_wdt.
402
403 config OMAP_WATCHDOG
404 tristate "OMAP Watchdog"
405 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
406 select WATCHDOG_CORE
407 help
408 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
409 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
410
411 config PNX4008_WATCHDOG
412 tristate "LPC32XX Watchdog"
413 depends on ARCH_LPC32XX
414 select WATCHDOG_CORE
415 help
416 Say Y here if to include support for the watchdog timer
417 in the LPC32XX processor.
418 This driver can be built as a module by choosing M. The module
419 will be called pnx4008_wdt.
420
421 Say N if you are unsure.
422
423 config IOP_WATCHDOG
424 tristate "IOP Watchdog"
425 depends on ARCH_IOP13XX
426 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
427 help
428 Say Y here if to include support for the watchdog timer
429 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
430 be built as a module by choosing M. The module will
431 be called iop_wdt.
432
433 Note: The IOP13XX watchdog does an Internal Bus Reset which will
434 affect both cores and the peripherals of the IOP. The ATU-X
435 and/or ATUe configuration registers will remain intact, but if
436 operating as an Root Complex and/or Central Resource, the PCI-X
437 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
438
439 config DAVINCI_WATCHDOG
440 tristate "DaVinci watchdog"
441 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
442 select WATCHDOG_CORE
443 help
444 Say Y here if to include support for the watchdog timer
445 in the DaVinci DM644x/DM646x or Keystone processors.
446 To compile this driver as a module, choose M here: the
447 module will be called davinci_wdt.
448
449 NOTE: once enabled, this timer cannot be disabled.
450 Say N if you are unsure.
451
452 config ORION_WATCHDOG
453 tristate "Orion watchdog"
454 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
455 depends on ARM
456 select WATCHDOG_CORE
457 help
458 Say Y here if to include support for the watchdog timer
459 in the Marvell Orion5x and Kirkwood ARM SoCs.
460 To compile this driver as a module, choose M here: the
461 module will be called orion_wdt.
462
463 config RN5T618_WATCHDOG
464 tristate "Ricoh RN5T618 watchdog"
465 depends on MFD_RN5T618 || COMPILE_TEST
466 select WATCHDOG_CORE
467 help
468 If you say yes here you get support for watchdog on the Ricoh
469 RN5T618 PMIC.
470
471 This driver can also be built as a module. If so, the module
472 will be called rn5t618_wdt.
473
474 config SUNXI_WATCHDOG
475 tristate "Allwinner SoCs watchdog support"
476 depends on ARCH_SUNXI || COMPILE_TEST
477 select WATCHDOG_CORE
478 help
479 Say Y here to include support for the watchdog timer
480 in Allwinner SoCs.
481 To compile this driver as a module, choose M here: the
482 module will be called sunxi_wdt.
483
484 config COH901327_WATCHDOG
485 bool "ST-Ericsson COH 901 327 watchdog"
486 depends on ARCH_U300 || (ARM && COMPILE_TEST)
487 default y if MACH_U300
488 select WATCHDOG_CORE
489 help
490 Say Y here to include Watchdog timer support for the
491 watchdog embedded into the ST-Ericsson U300 series platforms.
492 This watchdog is used to reset the system and thus cannot be
493 compiled as a module.
494
495 config TWL4030_WATCHDOG
496 tristate "TWL4030 Watchdog"
497 depends on TWL4030_CORE
498 select WATCHDOG_CORE
499 help
500 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
501 watchdog timer support for TWL4030 chips.
502
503 config STMP3XXX_RTC_WATCHDOG
504 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
505 depends on RTC_DRV_STMP || COMPILE_TEST
506 select WATCHDOG_CORE
507 help
508 Say Y here to include support for the watchdog timer inside
509 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
510 To compile this driver as a module, choose M here: the
511 module will be called stmp3xxx_rtc_wdt.
512
513 config NUC900_WATCHDOG
514 tristate "Nuvoton NUC900 watchdog"
515 depends on ARCH_W90X900 || COMPILE_TEST
516 help
517 Say Y here if to include support for the watchdog timer
518 for the Nuvoton NUC900 series SoCs.
519 To compile this driver as a module, choose M here: the
520 module will be called nuc900_wdt.
521
522 config TS4800_WATCHDOG
523 tristate "TS-4800 Watchdog"
524 depends on HAS_IOMEM && OF
525 depends on SOC_IMX51 || COMPILE_TEST
526 select WATCHDOG_CORE
527 select MFD_SYSCON
528 help
529 Technologic Systems TS-4800 has watchdog timer implemented in
530 an external FPGA. Say Y here if you want to support for the
531 watchdog timer on TS-4800 board.
532
533 config TS72XX_WATCHDOG
534 tristate "TS-72XX SBC Watchdog"
535 depends on MACH_TS72XX || COMPILE_TEST
536 help
537 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
538 watchdog timer implemented in a external CPLD chip. Say Y here
539 if you want to support for the watchdog timer on TS-72XX boards.
540
541 To compile this driver as a module, choose M here: the
542 module will be called ts72xx_wdt.
543
544 config MAX63XX_WATCHDOG
545 tristate "Max63xx watchdog"
546 depends on HAS_IOMEM
547 select WATCHDOG_CORE
548 help
549 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
550
551 config MAX77620_WATCHDOG
552 tristate "Maxim Max77620 Watchdog Timer"
553 depends on MFD_MAX77620 || COMPILE_TEST
554 help
555 This is the driver for the Max77620 watchdog timer.
556 Say 'Y' here to enable the watchdog timer support for
557 MAX77620 chips. To compile this driver as a module,
558 choose M here: the module will be called max77620_wdt.
559
560 config IMX2_WDT
561 tristate "IMX2+ Watchdog"
562 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
563 select REGMAP_MMIO
564 select WATCHDOG_CORE
565 help
566 This is the driver for the hardware watchdog
567 on the Freescale IMX2 and later processors.
568 If you have one of these processors and wish to have
569 watchdog support enabled, say Y, otherwise say N.
570
571 To compile this driver as a module, choose M here: the
572 module will be called imx2_wdt.
573
574 config UX500_WATCHDOG
575 tristate "ST-Ericsson Ux500 watchdog"
576 depends on MFD_DB8500_PRCMU || (ARM && COMPILE_TEST)
577 select WATCHDOG_CORE
578 default y
579 help
580 Say Y here to include Watchdog timer support for the watchdog
581 existing in the prcmu of ST-Ericsson Ux500 series platforms.
582
583 To compile this driver as a module, choose M here: the
584 module will be called ux500_wdt.
585
586 config RETU_WATCHDOG
587 tristate "Retu watchdog"
588 depends on MFD_RETU || COMPILE_TEST
589 select WATCHDOG_CORE
590 help
591 Retu watchdog driver for Nokia Internet Tablets (770, N800,
592 N810). At least on N800 the watchdog cannot be disabled, so
593 this driver is essential and you should enable it.
594
595 To compile this driver as a module, choose M here: the
596 module will be called retu_wdt.
597
598 config MOXART_WDT
599 tristate "MOXART watchdog"
600 depends on ARCH_MOXART || COMPILE_TEST
601 help
602 Say Y here to include Watchdog timer support for the watchdog
603 existing on the MOXA ART SoC series platforms.
604
605 To compile this driver as a module, choose M here: the
606 module will be called moxart_wdt.
607
608 config SIRFSOC_WATCHDOG
609 tristate "SiRFSOC watchdog"
610 depends on ARCH_SIRF || COMPILE_TEST
611 select WATCHDOG_CORE
612 default y
613 help
614 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
615 the watchdog triggers the system will be reset.
616
617 config ST_LPC_WATCHDOG
618 tristate "STMicroelectronics LPC Watchdog"
619 depends on ARCH_STI || COMPILE_TEST
620 depends on OF
621 select WATCHDOG_CORE
622 help
623 Say Y here to include STMicroelectronics Low Power Controller
624 (LPC) based Watchdog timer support.
625
626 To compile this driver as a module, choose M here: the
627 module will be called st_lpc_wdt.
628
629 config TEGRA_WATCHDOG
630 tristate "Tegra watchdog"
631 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
632 select WATCHDOG_CORE
633 help
634 Say Y here to include support for the watchdog timer
635 embedded in NVIDIA Tegra SoCs.
636
637 To compile this driver as a module, choose M here: the
638 module will be called tegra_wdt.
639
640 config QCOM_WDT
641 tristate "QCOM watchdog"
642 depends on HAS_IOMEM
643 depends on ARCH_QCOM || COMPILE_TEST
644 select WATCHDOG_CORE
645 help
646 Say Y here to include Watchdog timer support for the watchdog found
647 on QCOM chipsets. Currently supported targets are the MSM8960,
648 APQ8064, and IPQ8064.
649
650 To compile this driver as a module, choose M here: the
651 module will be called qcom_wdt.
652
653 config MESON_GXBB_WATCHDOG
654 tristate "Amlogic Meson GXBB SoCs watchdog support"
655 depends on ARCH_MESON || COMPILE_TEST
656 select WATCHDOG_CORE
657 help
658 Say Y here to include support for the watchdog timer
659 in Amlogic Meson GXBB SoCs.
660 To compile this driver as a module, choose M here: the
661 module will be called meson_gxbb_wdt.
662
663 config MESON_WATCHDOG
664 tristate "Amlogic Meson SoCs watchdog support"
665 depends on ARCH_MESON || COMPILE_TEST
666 select WATCHDOG_CORE
667 help
668 Say Y here to include support for the watchdog timer
669 in Amlogic Meson SoCs.
670 To compile this driver as a module, choose M here: the
671 module will be called meson_wdt.
672
673 config MEDIATEK_WATCHDOG
674 tristate "Mediatek SoCs watchdog support"
675 depends on ARCH_MEDIATEK || COMPILE_TEST
676 select WATCHDOG_CORE
677 help
678 Say Y here to include support for the watchdog timer
679 in Mediatek SoCs.
680 To compile this driver as a module, choose M here: the
681 module will be called mtk_wdt.
682
683 config DIGICOLOR_WATCHDOG
684 tristate "Conexant Digicolor SoCs watchdog support"
685 depends on ARCH_DIGICOLOR || COMPILE_TEST
686 select WATCHDOG_CORE
687 help
688 Say Y here to include support for the watchdog timer
689 in Conexant Digicolor SoCs.
690 To compile this driver as a module, choose M here: the
691 module will be called digicolor_wdt.
692
693 config LPC18XX_WATCHDOG
694 tristate "LPC18xx/43xx Watchdog"
695 depends on ARCH_LPC18XX || COMPILE_TEST
696 depends on HAS_IOMEM
697 select WATCHDOG_CORE
698 help
699 Say Y here if to include support for the watchdog timer
700 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
701 processors.
702 To compile this driver as a module, choose M here: the
703 module will be called lpc18xx_wdt.
704
705 config ATLAS7_WATCHDOG
706 tristate "CSRatlas7 watchdog"
707 depends on ARCH_ATLAS7 || COMPILE_TEST
708 help
709 Say Y here to include Watchdog timer support for the watchdog
710 existing on the CSRatlas7 series platforms.
711
712 To compile this driver as a module, choose M here: the
713 module will be called atlas7_wdt.
714
715 config RENESAS_WDT
716 tristate "Renesas WDT Watchdog"
717 depends on ARCH_RENESAS || COMPILE_TEST
718 select WATCHDOG_CORE
719 help
720 This driver adds watchdog support for the integrated watchdogs in the
721 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
722
723 config ASPEED_WATCHDOG
724 tristate "Aspeed 2400 watchdog support"
725 depends on ARCH_ASPEED || COMPILE_TEST
726 select WATCHDOG_CORE
727 help
728 Say Y here to include support for the watchdog timer
729 in Apseed BMC SoCs.
730
731 This driver is required to reboot the SoC.
732
733 To compile this driver as a module, choose M here: the
734 module will be called aspeed_wdt.
735
736 config ZX2967_WATCHDOG
737 tristate "ZTE zx2967 SoCs watchdog support"
738 depends on ARCH_ZX
739 select WATCHDOG_CORE
740 help
741 Say Y here to include support for the watchdog timer
742 in ZTE zx2967 SoCs.
743 To compile this driver as a module, choose M here: the
744 module will be called zx2967_wdt.
745
746 # AVR32 Architecture
747
748 config AT32AP700X_WDT
749 tristate "AT32AP700x watchdog"
750 depends on CPU_AT32AP700X || COMPILE_TEST
751 help
752 Watchdog timer embedded into AT32AP700x devices. This will reboot
753 your system when the timeout is reached.
754
755 # BLACKFIN Architecture
756
757 config BFIN_WDT
758 tristate "Blackfin On-Chip Watchdog Timer"
759 depends on BLACKFIN
760 ---help---
761 If you say yes here you will get support for the Blackfin On-Chip
762 Watchdog Timer. If you have one of these processors and wish to
763 have watchdog support enabled, say Y, otherwise say N.
764
765 To compile this driver as a module, choose M here: the
766 module will be called bfin_wdt.
767
768 # CRIS Architecture
769
770 # FRV Architecture
771
772 # X86 (i386 + ia64 + x86_64) Architecture
773
774 config ACQUIRE_WDT
775 tristate "Acquire SBC Watchdog Timer"
776 depends on X86
777 ---help---
778 This is the driver for the hardware watchdog on Single Board
779 Computers produced by Acquire Inc (and others). This watchdog
780 simply watches your kernel to make sure it doesn't freeze, and if
781 it does, it reboots your computer after a certain amount of time.
782
783 To compile this driver as a module, choose M here: the
784 module will be called acquirewdt.
785
786 Most people will say N.
787
788 config ADVANTECH_WDT
789 tristate "Advantech SBC Watchdog Timer"
790 depends on X86
791 help
792 If you are configuring a Linux kernel for the Advantech single-board
793 computer, say `Y' here to support its built-in watchdog timer
794 feature. More information can be found at
795 <http://www.advantech.com.tw/products/>
796
797 config ALIM1535_WDT
798 tristate "ALi M1535 PMU Watchdog Timer"
799 depends on X86 && PCI
800 ---help---
801 This is the driver for the hardware watchdog on the ALi M1535 PMU.
802
803 To compile this driver as a module, choose M here: the
804 module will be called alim1535_wdt.
805
806 Most people will say N.
807
808 config ALIM7101_WDT
809 tristate "ALi M7101 PMU Computer Watchdog"
810 depends on PCI
811 help
812 This is the driver for the hardware watchdog on the ALi M7101 PMU
813 as used in the x86 Cobalt servers and also found in some
814 SPARC Netra servers too.
815
816 To compile this driver as a module, choose M here: the
817 module will be called alim7101_wdt.
818
819 Most people will say N.
820
821 config EBC_C384_WDT
822 tristate "WinSystems EBC-C384 Watchdog Timer"
823 depends on X86 && ISA_BUS_API
824 select WATCHDOG_CORE
825 help
826 Enables watchdog timer support for the watchdog timer on the
827 WinSystems EBC-C384 motherboard. The timeout may be configured via
828 the timeout module parameter.
829
830 config F71808E_WDT
831 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
832 depends on X86
833 help
834 This is the driver for the hardware watchdog on the Fintek
835 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
836
837 You can compile this driver directly into the kernel, or use
838 it as a module. The module will be called f71808e_wdt.
839
840 config SP5100_TCO
841 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
842 depends on X86 && PCI
843 ---help---
844 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
845 (Total Cost of Ownership) timer is a watchdog timer that will reboot
846 the machine after its expiration. The expiration time can be
847 configured with the "heartbeat" parameter.
848
849 To compile this driver as a module, choose M here: the
850 module will be called sp5100_tco.
851
852 config GEODE_WDT
853 tristate "AMD Geode CS5535/CS5536 Watchdog"
854 depends on CS5535_MFGPT || (X86 && COMPILE_TEST)
855 help
856 This driver enables a watchdog capability built into the
857 CS5535/CS5536 companion chips for the AMD Geode GX and LX
858 processors. This watchdog watches your kernel to make sure
859 it doesn't freeze, and if it does, it reboots your computer after
860 a certain amount of time.
861
862 You can compile this driver directly into the kernel, or use
863 it as a module. The module will be called geodewdt.
864
865 config SC520_WDT
866 tristate "AMD Elan SC520 processor Watchdog"
867 depends on MELAN || COMPILE_TEST
868 help
869 This is the driver for the hardware watchdog built in to the
870 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
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 You can compile this driver directly into the kernel, or use
876 it as a module. The module will be called sc520_wdt.
877
878 config SBC_FITPC2_WATCHDOG
879 tristate "Compulab SBC-FITPC2 watchdog"
880 depends on X86
881 ---help---
882 This is the driver for the built-in watchdog timer on the fit-PC2,
883 fit-PC2i, CM-iAM single-board computers made by Compulab.
884
885 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
886 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
887
888 Entering BIOS setup temporary disables watchdog operation regardless to current state,
889 so system will not be restarted while user in BIOS setup.
890
891 Once watchdog was enabled the system will be restarted every
892 "Watchdog Timer Value" period, so to prevent it user can restart or
893 disable the watchdog.
894
895 To compile this driver as a module, choose M here: the
896 module will be called sbc_fitpc2_wdt.
897
898 Most people will say N.
899
900 config EUROTECH_WDT
901 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
902 depends on X86
903 help
904 Enable support for the watchdog timer on the Eurotech CPU-1220 and
905 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
906 information are at <http://www.eurotech.it/>.
907
908 config IB700_WDT
909 tristate "IB700 SBC Watchdog Timer"
910 depends on X86
911 ---help---
912 This is the driver for the hardware watchdog on the IB700 Single
913 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
914 simply watches your kernel to make sure it doesn't freeze, and if
915 it does, it reboots your computer after a certain amount of time.
916
917 This driver is like the WDT501 driver but for slightly different hardware.
918
919 To compile this driver as a module, choose M here: the
920 module will be called ib700wdt.
921
922 Most people will say N.
923
924 config IBMASR
925 tristate "IBM Automatic Server Restart"
926 depends on X86
927 help
928 This is the driver for the IBM Automatic Server Restart watchdog
929 timer built-in into some eServer xSeries machines.
930
931 To compile this driver as a module, choose M here: the
932 module will be called ibmasr.
933
934 config WAFER_WDT
935 tristate "ICP Single Board Computer Watchdog Timer"
936 depends on X86
937 help
938 This is a driver for the hardware watchdog on the ICP Single
939 Board Computer. This driver is working on (at least) the following
940 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
941
942 To compile this driver as a module, choose M here: the
943 module will be called wafer5823wdt.
944
945 config I6300ESB_WDT
946 tristate "Intel 6300ESB Timer/Watchdog"
947 depends on PCI
948 ---help---
949 Hardware driver for the watchdog timer built into the Intel
950 6300ESB controller hub.
951
952 To compile this driver as a module, choose M here: the
953 module will be called i6300esb.
954
955 config IE6XX_WDT
956 tristate "Intel Atom E6xx Watchdog"
957 depends on X86 && PCI
958 select WATCHDOG_CORE
959 select MFD_CORE
960 select LPC_SCH
961 ---help---
962 Hardware driver for the watchdog timer built into the Intel
963 Atom E6XX (TunnelCreek) processor.
964
965 To compile this driver as a module, choose M here: the
966 module will be called ie6xx_wdt.
967
968 config INTEL_SCU_WATCHDOG
969 bool "Intel SCU Watchdog for Mobile Platforms"
970 depends on X86_INTEL_MID
971 ---help---
972 Hardware driver for the watchdog time built into the Intel SCU
973 for Intel Mobile Platforms.
974
975 To compile this driver as a module, choose M here.
976
977 config INTEL_MID_WATCHDOG
978 tristate "Intel MID Watchdog Timer"
979 depends on X86_INTEL_MID
980 select WATCHDOG_CORE
981 ---help---
982 Watchdog timer driver built into the Intel SCU for Intel MID
983 Platforms.
984
985 This driver currently supports only the watchdog evolution
986 implementation in SCU, available for Merrifield generation.
987
988 To compile this driver as a module, choose M here.
989
990 config ITCO_WDT
991 tristate "Intel TCO Timer/Watchdog"
992 depends on (X86 || IA64) && PCI
993 select WATCHDOG_CORE
994 depends on I2C || I2C=n
995 select LPC_ICH if !EXPERT
996 select I2C_I801 if !EXPERT && I2C
997 ---help---
998 Hardware driver for the intel TCO timer based watchdog devices.
999 These drivers are included in the Intel 82801 I/O Controller
1000 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1001 controller hub.
1002
1003 The TCO (Total Cost of Ownership) timer is a watchdog timer
1004 that will reboot the machine after its second expiration. The
1005 expiration time can be configured with the "heartbeat" parameter.
1006
1007 On some motherboards the driver may fail to reset the chipset's
1008 NO_REBOOT flag which prevents the watchdog from rebooting the
1009 machine. If this is the case you will get a kernel message like
1010 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1011
1012 To compile this driver as a module, choose M here: the
1013 module will be called iTCO_wdt.
1014
1015 config ITCO_VENDOR_SUPPORT
1016 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1017 depends on ITCO_WDT
1018 ---help---
1019 Add vendor specific support to the intel TCO timer based watchdog
1020 devices. At this moment we only have additional support for some
1021 SuperMicro Inc. motherboards.
1022
1023 config IT8712F_WDT
1024 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1025 depends on X86
1026 ---help---
1027 This is the driver for the built-in watchdog timer on the IT8712F
1028 Super I/0 chipset used on many motherboards.
1029
1030 If the driver does not work, then make sure that the game port in
1031 the BIOS is enabled.
1032
1033 To compile this driver as a module, choose M here: the
1034 module will be called it8712f_wdt.
1035
1036 config IT87_WDT
1037 tristate "IT87 Watchdog Timer"
1038 depends on X86
1039 ---help---
1040 This is the driver for the hardware watchdog on the ITE IT8620,
1041 IT8702, IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
1042 Super I/O chips.
1043
1044 If the driver does not work, then make sure that the game port in
1045 the BIOS is enabled.
1046
1047 This watchdog simply watches your kernel to make sure it doesn't
1048 freeze, and if it does, it reboots your computer after a certain
1049 amount of time.
1050
1051 To compile this driver as a module, choose M here: the module will
1052 be called it87_wdt.
1053
1054 config HP_WATCHDOG
1055 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1056 depends on X86 && PCI
1057 help
1058 A software monitoring watchdog and NMI sourcing driver. This driver
1059 will detect lockups and provide a stack trace. This is a driver that
1060 will only load on an HP ProLiant system with a minimum of iLO2 support.
1061 To compile this driver as a module, choose M here: the module will be
1062 called hpwdt.
1063
1064 config KEMPLD_WDT
1065 tristate "Kontron COM Watchdog Timer"
1066 depends on MFD_KEMPLD || COMPILE_TEST
1067 select WATCHDOG_CORE
1068 help
1069 Support for the PLD watchdog on some Kontron ETX and COMexpress
1070 (ETXexpress) modules
1071
1072 This driver can also be built as a module. If so, the module will be
1073 called kempld_wdt.
1074
1075 config HPWDT_NMI_DECODING
1076 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1077 depends on HP_WATCHDOG
1078 default y
1079 help
1080 When an NMI occurs this feature will make the necessary BIOS calls to
1081 log the cause of the NMI.
1082
1083 config SC1200_WDT
1084 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1085 depends on X86
1086 help
1087 This is a driver for National Semiconductor PC87307/PC97307 hardware
1088 watchdog cards as found on the SC1200. This watchdog is mainly used
1089 for power management purposes and can be used to power down the device
1090 during inactivity periods (includes interrupt activity monitoring).
1091
1092 To compile this driver as a module, choose M here: the
1093 module will be called sc1200wdt.
1094
1095 Most people will say N.
1096
1097 config SCx200_WDT
1098 tristate "National Semiconductor SCx200 Watchdog"
1099 depends on SCx200 && PCI
1100 help
1101 Enable the built-in watchdog timer support on the National
1102 Semiconductor SCx200 processors.
1103
1104 If compiled as a module, it will be called scx200_wdt.
1105
1106 config PC87413_WDT
1107 tristate "NS PC87413 watchdog"
1108 depends on X86
1109 ---help---
1110 This is the driver for the hardware watchdog on the PC87413 chipset
1111 This watchdog simply watches your kernel to make sure it doesn't
1112 freeze, and if it does, it reboots your computer after a certain
1113 amount of time.
1114
1115 To compile this driver as a module, choose M here: the
1116 module will be called pc87413_wdt.
1117
1118 Most people will say N.
1119
1120 config NV_TCO
1121 tristate "nVidia TCO Timer/Watchdog"
1122 depends on X86 && PCI
1123 ---help---
1124 Hardware driver for the TCO timer built into the nVidia Hub family
1125 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1126 watchdog timer that will reboot the machine after its second
1127 expiration. The expiration time can be configured with the
1128 "heartbeat" parameter.
1129
1130 On some motherboards the driver may fail to reset the chipset's
1131 NO_REBOOT flag which prevents the watchdog from rebooting the
1132 machine. If this is the case you will get a kernel message like
1133 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1134
1135 To compile this driver as a module, choose M here: the
1136 module will be called nv_tco.
1137
1138 config RDC321X_WDT
1139 tristate "RDC R-321x SoC watchdog"
1140 depends on X86_RDC321X || COMPILE_TEST
1141 depends on PCI
1142 help
1143 This is the driver for the built in hardware watchdog
1144 in the RDC R-321x SoC.
1145
1146 To compile this driver as a module, choose M here: the
1147 module will be called rdc321x_wdt.
1148
1149 config 60XX_WDT
1150 tristate "SBC-60XX Watchdog Timer"
1151 depends on X86
1152 help
1153 This driver can be used with the watchdog timer found on some
1154 single board computers, namely the 6010 PII based computer.
1155 It may well work with other cards. It reads port 0x443 to enable
1156 and re-set the watchdog timer, and reads port 0x45 to disable
1157 the watchdog. If you have a card that behave in similar ways,
1158 you can probably make this driver work with your card as well.
1159
1160 You can compile this driver directly into the kernel, or use
1161 it as a module. The module will be called sbc60xxwdt.
1162
1163 config SBC8360_WDT
1164 tristate "SBC8360 Watchdog Timer"
1165 depends on X86_32
1166 ---help---
1167
1168 This is the driver for the hardware watchdog on the SBC8360 Single
1169 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1170
1171 To compile this driver as a module, choose M here: the
1172 module will be called sbc8360.
1173
1174 Most people will say N.
1175
1176 config SBC7240_WDT
1177 tristate "SBC Nano 7240 Watchdog Timer"
1178 depends on X86_32 && !UML
1179 ---help---
1180 This is the driver for the hardware watchdog found on the IEI
1181 single board computers EPIC Nano 7240 (and likely others). This
1182 watchdog simply watches your kernel to make sure it doesn't freeze,
1183 and if it does, it reboots your computer after a certain amount of
1184 time.
1185
1186 To compile this driver as a module, choose M here: the
1187 module will be called sbc7240_wdt.
1188
1189 config CPU5_WDT
1190 tristate "SMA CPU5 Watchdog"
1191 depends on X86
1192 ---help---
1193 TBD.
1194 To compile this driver as a module, choose M here: the
1195 module will be called cpu5wdt.
1196
1197 config SMSC_SCH311X_WDT
1198 tristate "SMSC SCH311X Watchdog Timer"
1199 depends on X86
1200 ---help---
1201 This is the driver for the hardware watchdog timer on the
1202 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1203 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1204 serial ports).
1205
1206 To compile this driver as a module, choose M here: the
1207 module will be called sch311x_wdt.
1208
1209 config SMSC37B787_WDT
1210 tristate "Winbond SMsC37B787 Watchdog Timer"
1211 depends on X86
1212 ---help---
1213 This is the driver for the hardware watchdog component on the
1214 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1215 from Vision Systems and maybe others.
1216
1217 This watchdog simply watches your kernel to make sure it doesn't
1218 freeze, and if it does, it reboots your computer after a certain
1219 amount of time.
1220
1221 Usually a userspace daemon will notify the kernel WDT driver that
1222 userspace is still alive, at regular intervals.
1223
1224 To compile this driver as a module, choose M here: the
1225 module will be called smsc37b787_wdt.
1226
1227 Most people will say N.
1228
1229 config VIA_WDT
1230 tristate "VIA Watchdog Timer"
1231 depends on X86 && PCI
1232 select WATCHDOG_CORE
1233 ---help---
1234 This is the driver for the hardware watchdog timer on VIA
1235 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1236
1237 To compile this driver as a module, choose M here; the module
1238 will be called via_wdt.
1239
1240 Most people will say N.
1241
1242 config W83627HF_WDT
1243 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1244 depends on X86
1245 select WATCHDOG_CORE
1246 ---help---
1247 This is the driver for the hardware watchdog on the following
1248 Super I/O chips.
1249 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1250 W83637HF
1251 W83667HG/HG-B
1252 W83687THF
1253 W83697HF
1254 W83697UG
1255 NCT6775
1256 NCT6776
1257 NCT6779
1258 NCT6791
1259 NCT6792
1260 NCT6102D/04D/06D
1261
1262 This watchdog simply watches your kernel to make sure it doesn't
1263 freeze, and if it does, it reboots your computer after a certain
1264 amount of time.
1265
1266 To compile this driver as a module, choose M here: the
1267 module will be called w83627hf_wdt.
1268
1269 Most people will say N.
1270
1271 config W83877F_WDT
1272 tristate "W83877F (EMACS) Watchdog Timer"
1273 depends on X86
1274 ---help---
1275 This is the driver for the hardware watchdog on the W83877F chipset
1276 as used in EMACS PC-104 motherboards (and likely others). This
1277 watchdog simply watches your kernel to make sure it doesn't freeze,
1278 and if it does, it reboots your computer after a certain amount of
1279 time.
1280
1281 To compile this driver as a module, choose M here: the
1282 module will be called w83877f_wdt.
1283
1284 Most people will say N.
1285
1286 config W83977F_WDT
1287 tristate "W83977F (PCM-5335) Watchdog Timer"
1288 depends on X86
1289 ---help---
1290 This is the driver for the hardware watchdog on the W83977F I/O chip
1291 as used in AAEON's PCM-5335 SBC (and likely others). This
1292 watchdog simply watches your kernel to make sure it doesn't freeze,
1293 and if it does, it reboots your computer after a certain amount of
1294 time.
1295
1296 To compile this driver as a module, choose M here: the
1297 module will be called w83977f_wdt.
1298
1299 config MACHZ_WDT
1300 tristate "ZF MachZ Watchdog"
1301 depends on X86
1302 ---help---
1303 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1304 N. This is the driver for the watchdog timer built-in on that
1305 processor using ZF-Logic interface. This watchdog simply watches
1306 your kernel to make sure it doesn't freeze, and if it does, it
1307 reboots your computer after a certain amount of time.
1308
1309 To compile this driver as a module, choose M here: the
1310 module will be called machzwd.
1311
1312 config SBC_EPX_C3_WATCHDOG
1313 tristate "Winsystems SBC EPX-C3 watchdog"
1314 depends on X86
1315 ---help---
1316 This is the driver for the built-in watchdog timer on the EPX-C3
1317 Single-board computer made by Winsystems, Inc.
1318
1319 *Note*: This hardware watchdog is not probeable and thus there
1320 is no way to know if writing to its IO address will corrupt
1321 your system or have any real effect. The only way to be sure
1322 that this driver does what you want is to make sure you
1323 are running it on an EPX-C3 from Winsystems with the watchdog
1324 timer at IO address 0x1ee and 0x1ef. It will write to both those
1325 IO ports. Basically, the assumption is made that if you compile
1326 this driver into your kernel and/or load it as a module, that you
1327 know what you are doing and that you are in fact running on an
1328 EPX-C3 board!
1329
1330 To compile this driver as a module, choose M here: the
1331 module will be called sbc_epx_c3.
1332
1333 config INTEL_MEI_WDT
1334 tristate "Intel MEI iAMT Watchdog"
1335 depends on INTEL_MEI && X86
1336 select WATCHDOG_CORE
1337 ---help---
1338 A device driver for the Intel MEI iAMT watchdog.
1339
1340 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1341 Whenever the OS hangs or crashes, iAMT will send an event
1342 to any subscriber to this event. The watchdog doesn't reset the
1343 the platform.
1344
1345 To compile this driver as a module, choose M here:
1346 the module will be called mei_wdt.
1347
1348 config NI903X_WDT
1349 tristate "NI 903x/913x Watchdog"
1350 depends on X86 && ACPI
1351 select WATCHDOG_CORE
1352 ---help---
1353 This is the driver for the watchdog timer on the National Instruments
1354 903x/913x real-time controllers.
1355
1356 To compile this driver as a module, choose M here: the module will be
1357 called ni903x_wdt.
1358
1359 config NIC7018_WDT
1360 tristate "NIC7018 Watchdog"
1361 depends on X86 && ACPI
1362 select WATCHDOG_CORE
1363 ---help---
1364 Support for National Instruments NIC7018 Watchdog.
1365
1366 To compile this driver as a module, choose M here: the module will be
1367 called nic7018_wdt.
1368
1369 # M32R Architecture
1370
1371 # M68K Architecture
1372
1373 config M54xx_WATCHDOG
1374 tristate "MCF54xx watchdog support"
1375 depends on M548x
1376 help
1377 To compile this driver as a module, choose M here: the
1378 module will be called m54xx_wdt.
1379
1380 # MicroBlaze Architecture
1381
1382 # MIPS Architecture
1383
1384 config ATH79_WDT
1385 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1386 depends on ATH79 || (ARM && COMPILE_TEST)
1387 help
1388 Hardware driver for the built-in watchdog timer on the Atheros
1389 AR71XX/AR724X/AR913X SoCs.
1390
1391 config BCM47XX_WDT
1392 tristate "Broadcom BCM47xx Watchdog Timer"
1393 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1394 select WATCHDOG_CORE
1395 help
1396 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1397
1398 config RC32434_WDT
1399 tristate "IDT RC32434 SoC Watchdog Timer"
1400 depends on MIKROTIK_RB532
1401 help
1402 Hardware driver for the IDT RC32434 SoC built-in
1403 watchdog timer.
1404
1405 To compile this driver as a module, choose M here: the
1406 module will be called rc32434_wdt.
1407
1408 config INDYDOG
1409 tristate "Indy/I2 Hardware Watchdog"
1410 depends on SGI_HAS_INDYDOG || (MIPS && COMPILE_TEST)
1411 help
1412 Hardware driver for the Indy's/I2's watchdog. This is a
1413 watchdog timer that will reboot the machine after a 60 second
1414 timer expired and no process has written to /dev/watchdog during
1415 that time.
1416
1417 config JZ4740_WDT
1418 tristate "Ingenic jz4740 SoC hardware watchdog"
1419 depends on MACH_JZ4740
1420 select WATCHDOG_CORE
1421 help
1422 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1423
1424 config WDT_MTX1
1425 tristate "MTX-1 Hardware Watchdog"
1426 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1427 help
1428 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1429 will reboot the machine after a 100 seconds timer expired.
1430
1431 config PNX833X_WDT
1432 tristate "PNX833x Hardware Watchdog"
1433 depends on SOC_PNX8335
1434 depends on BROKEN
1435 help
1436 Hardware driver for the PNX833x's watchdog. This is a
1437 watchdog timer that will reboot the machine after a programmable
1438 timer has expired and no process has written to /dev/watchdog during
1439 that time.
1440
1441 config SIBYTE_WDOG
1442 tristate "Sibyte SoC hardware watchdog"
1443 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1444 help
1445 Watchdog driver for the built in watchdog hardware in Sibyte
1446 SoC processors. There are apparently two watchdog timers
1447 on such processors; this driver supports only the first one,
1448 because currently Linux only supports exporting one watchdog
1449 to userspace.
1450
1451 To compile this driver as a loadable module, choose M here.
1452 The module will be called sb_wdog.
1453
1454 config AR7_WDT
1455 tristate "TI AR7 Watchdog Timer"
1456 depends on AR7 || (MIPS && COMPILE_TEST)
1457 help
1458 Hardware driver for the TI AR7 Watchdog Timer.
1459
1460 config TXX9_WDT
1461 tristate "Toshiba TXx9 Watchdog Timer"
1462 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1463 select WATCHDOG_CORE
1464 help
1465 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1466
1467 config OCTEON_WDT
1468 tristate "Cavium OCTEON SOC family Watchdog Timer"
1469 depends on CAVIUM_OCTEON_SOC
1470 default y
1471 select WATCHDOG_CORE
1472 select EXPORT_UASM if OCTEON_WDT = m
1473 help
1474 Hardware driver for OCTEON's on chip watchdog timer.
1475 Enables the watchdog for all cores running Linux. It
1476 installs a NMI handler and pokes the watchdog based on an
1477 interrupt. On first expiration of the watchdog, the
1478 interrupt handler pokes it. The second expiration causes an
1479 NMI that prints a message. The third expiration causes a
1480 global soft reset.
1481
1482 When userspace has /dev/watchdog open, no poking is done
1483 from the first interrupt, it is then only poked when the
1484 device is written.
1485
1486 config BCM63XX_WDT
1487 tristate "Broadcom BCM63xx hardware watchdog"
1488 depends on BCM63XX
1489 help
1490 Watchdog driver for the built in watchdog hardware in Broadcom
1491 BCM63xx SoC.
1492
1493 To compile this driver as a loadable module, choose M here.
1494 The module will be called bcm63xx_wdt.
1495
1496 config BCM2835_WDT
1497 tristate "Broadcom BCM2835 hardware watchdog"
1498 depends on ARCH_BCM2835 || COMPILE_TEST
1499 select WATCHDOG_CORE
1500 help
1501 Watchdog driver for the built in watchdog hardware in Broadcom
1502 BCM2835 SoC.
1503
1504 To compile this driver as a loadable module, choose M here.
1505 The module will be called bcm2835_wdt.
1506
1507 config BCM_KONA_WDT
1508 tristate "BCM Kona Watchdog"
1509 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1510 select WATCHDOG_CORE
1511 help
1512 Support for the watchdog timer on the following Broadcom BCM281xx
1513 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1514 BCM28155 variants.
1515
1516 Say 'Y' or 'M' here to enable the driver. The module will be called
1517 bcm_kona_wdt.
1518
1519 config BCM_KONA_WDT_DEBUG
1520 bool "DEBUGFS support for BCM Kona Watchdog"
1521 depends on BCM_KONA_WDT || COMPILE_TEST
1522 help
1523 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1524 access to the driver's internal data structures as well as watchdog
1525 timer hardware registres.
1526
1527 If in doubt, say 'N'.
1528
1529 config BCM7038_WDT
1530 tristate "BCM7038 Watchdog"
1531 select WATCHDOG_CORE
1532 depends on HAS_IOMEM
1533 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1534 help
1535 Watchdog driver for the built-in hardware in Broadcom 7038 and
1536 later SoCs used in set-top boxes. BCM7038 was made public
1537 during the 2004 CES, and since then, many Broadcom chips use this
1538 watchdog block, including some cable modem chips.
1539
1540 config IMGPDC_WDT
1541 tristate "Imagination Technologies PDC Watchdog Timer"
1542 depends on HAS_IOMEM
1543 depends on METAG || MIPS || COMPILE_TEST
1544 select WATCHDOG_CORE
1545 help
1546 Driver for Imagination Technologies PowerDown Controller
1547 Watchdog Timer.
1548
1549 To compile this driver as a loadable module, choose M here.
1550 The module will be called imgpdc_wdt.
1551
1552 config LANTIQ_WDT
1553 tristate "Lantiq SoC watchdog"
1554 depends on LANTIQ
1555 help
1556 Hardware driver for the Lantiq SoC Watchdog Timer.
1557
1558 config LOONGSON1_WDT
1559 tristate "Loongson1 SoC hardware watchdog"
1560 depends on MACH_LOONGSON32
1561 select WATCHDOG_CORE
1562 help
1563 Hardware driver for the Loongson1 SoC Watchdog Timer.
1564
1565 config RALINK_WDT
1566 tristate "Ralink SoC watchdog"
1567 select WATCHDOG_CORE
1568 depends on RALINK
1569 help
1570 Hardware driver for the Ralink SoC Watchdog Timer.
1571
1572 config MT7621_WDT
1573 tristate "Mediatek SoC watchdog"
1574 select WATCHDOG_CORE
1575 depends on SOC_MT7620 || SOC_MT7621
1576 help
1577 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1578
1579 config PIC32_WDT
1580 tristate "Microchip PIC32 hardware watchdog"
1581 select WATCHDOG_CORE
1582 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1583 help
1584 Watchdog driver for the built in watchdog hardware in a PIC32.
1585
1586 Configuration bits must be set appropriately for the watchdog to be
1587 controlled by this driver.
1588
1589 To compile this driver as a loadable module, choose M here.
1590 The module will be called pic32-wdt.
1591
1592 config PIC32_DMT
1593 tristate "Microchip PIC32 Deadman Timer"
1594 select WATCHDOG_CORE
1595 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1596 help
1597 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1598 timer is typically be used in misson critical and safety critical
1599 applications, where any single failure of the software functionality
1600 and sequencing must be detected.
1601
1602 To compile this driver as a loadable module, choose M here.
1603 The module will be called pic32-dmt.
1604
1605 # PARISC Architecture
1606
1607 # POWERPC Architecture
1608
1609 config GEF_WDT
1610 tristate "GE Watchdog Timer"
1611 depends on GE_FPGA
1612 ---help---
1613 Watchdog timer found in a number of GE single board computers.
1614
1615 config MPC5200_WDT
1616 bool "MPC52xx Watchdog Timer"
1617 depends on PPC_MPC52xx || COMPILE_TEST
1618 help
1619 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1620
1621 config 8xxx_WDT
1622 tristate "MPC8xxx Platform Watchdog Timer"
1623 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1624 select WATCHDOG_CORE
1625 help
1626 This driver is for a SoC level watchdog that exists on some
1627 Freescale PowerPC processors. So far this driver supports:
1628 - MPC8xx watchdogs
1629 - MPC83xx watchdogs
1630 - MPC86xx watchdogs
1631
1632 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1633
1634 config MV64X60_WDT
1635 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1636 depends on MV64X60 || COMPILE_TEST
1637
1638 config PIKA_WDT
1639 tristate "PIKA FPGA Watchdog"
1640 depends on WARP || (PPC64 && COMPILE_TEST)
1641 default y
1642 help
1643 This enables the watchdog in the PIKA FPGA. Currently used on
1644 the Warp platform.
1645
1646 config BOOKE_WDT
1647 tristate "PowerPC Book-E Watchdog Timer"
1648 depends on BOOKE || 4xx
1649 select WATCHDOG_CORE
1650 ---help---
1651 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1652 MPC85xx SOCs and the IBM PowerPC 440.
1653
1654 Please see Documentation/watchdog/watchdog-api.txt for
1655 more information.
1656
1657 config BOOKE_WDT_DEFAULT_TIMEOUT
1658 int "PowerPC Book-E Watchdog Timer Default Timeout"
1659 depends on BOOKE_WDT
1660 default 38 if PPC_FSL_BOOK3E
1661 range 0 63 if PPC_FSL_BOOK3E
1662 default 3 if !PPC_FSL_BOOK3E
1663 range 0 3 if !PPC_FSL_BOOK3E
1664 help
1665 Select the default watchdog timer period to be used by the PowerPC
1666 Book-E watchdog driver. A watchdog "event" occurs when the bit
1667 position represented by this number transitions from zero to one.
1668
1669 For Freescale Book-E processors, this is a number between 0 and 63.
1670 For other Book-E processors, this is a number between 0 and 3.
1671
1672 The value can be overridden by the wdt_period command-line parameter.
1673
1674 config MEN_A21_WDT
1675 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1676 select WATCHDOG_CORE
1677 depends on GPIOLIB || COMPILE_TEST
1678 help
1679 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1680
1681 The driver can also be built as a module. If so, the module will be
1682 called mena21_wdt.
1683
1684 If unsure select N here.
1685
1686 # PPC64 Architecture
1687
1688 config WATCHDOG_RTAS
1689 tristate "RTAS watchdog"
1690 depends on PPC_RTAS || (PPC64 && COMPILE_TEST)
1691 help
1692 This driver adds watchdog support for the RTAS watchdog.
1693
1694 To compile this driver as a module, choose M here. The module
1695 will be called wdrtas.
1696
1697 # S390 Architecture
1698
1699 config DIAG288_WATCHDOG
1700 tristate "System z diag288 Watchdog"
1701 depends on S390
1702 select WATCHDOG_CORE
1703 help
1704 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1705 provide a virtual watchdog timer to their guest that cause a
1706 user define Control Program command to be executed after a
1707 timeout.
1708 LPAR provides a very similar interface. This driver handles
1709 both.
1710
1711 To compile this driver as a module, choose M here. The module
1712 will be called diag288_wdt.
1713
1714 # SUPERH (sh + sh64) Architecture
1715
1716 config SH_WDT
1717 tristate "SuperH Watchdog"
1718 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1719 select WATCHDOG_CORE
1720 help
1721 This driver adds watchdog support for the integrated watchdog in the
1722 SuperH processors. If you have one of these processors and wish
1723 to have watchdog support enabled, say Y, otherwise say N.
1724
1725 As a side note, saying Y here will automatically boost HZ to 1000
1726 so that the timer has a chance to clear the overflow counter. On
1727 slower systems (such as the SH-2 and SH-3) this will likely yield
1728 some performance issues. As such, the WDT should be avoided here
1729 unless it is absolutely necessary.
1730
1731 To compile this driver as a module, choose M here: the
1732 module will be called shwdt.
1733
1734 # SPARC Architecture
1735
1736 # SPARC64 Architecture
1737
1738 config WATCHDOG_CP1XXX
1739 tristate "CP1XXX Hardware Watchdog support"
1740 depends on SPARC64 && PCI
1741 ---help---
1742 This is the driver for the hardware watchdog timers present on
1743 Sun Microsystems CompactPCI models CP1400 and CP1500.
1744
1745 To compile this driver as a module, choose M here: the
1746 module will be called cpwatchdog.
1747
1748 If you do not have a CompactPCI model CP1400 or CP1500, or
1749 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1750 you should say N to this option.
1751
1752 config WATCHDOG_RIO
1753 tristate "RIO Hardware Watchdog support"
1754 depends on SPARC64 && PCI
1755 help
1756 Say Y here to support the hardware watchdog capability on Sun RIO
1757 machines. The watchdog timeout period is normally one minute but
1758 can be changed with a boot-time parameter.
1759
1760 config WATCHDOG_SUN4V
1761 tristate "Sun4v Watchdog support"
1762 select WATCHDOG_CORE
1763 depends on SPARC64
1764 help
1765 Say Y here to support the hypervisor watchdog capability embedded
1766 in the SPARC sun4v architecture.
1767
1768 To compile this driver as a module, choose M here. The module will
1769 be called sun4v_wdt.
1770
1771 # XTENSA Architecture
1772
1773 # Xen Architecture
1774
1775 config XEN_WDT
1776 tristate "Xen Watchdog support"
1777 depends on XEN
1778 help
1779 Say Y here to support the hypervisor watchdog capability provided
1780 by Xen 4.0 and newer. The watchdog timeout period is normally one
1781 minute but can be changed with a boot-time parameter.
1782
1783 config UML_WATCHDOG
1784 tristate "UML watchdog"
1785 depends on UML || COMPILE_TEST
1786
1787 #
1788 # ISA-based Watchdog Cards
1789 #
1790
1791 comment "ISA-based Watchdog Cards"
1792 depends on ISA
1793
1794 config PCWATCHDOG
1795 tristate "Berkshire Products ISA-PC Watchdog"
1796 depends on ISA
1797 ---help---
1798 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1799 This card simply watches your kernel to make sure it doesn't freeze,
1800 and if it does, it reboots your computer after a certain amount of
1801 time. This driver is like the WDT501 driver but for different
1802 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1803 watchdog cards can be ordered from <http://www.berkprod.com/>.
1804
1805 To compile this driver as a module, choose M here: the
1806 module will be called pcwd.
1807
1808 Most people will say N.
1809
1810 config MIXCOMWD
1811 tristate "Mixcom Watchdog"
1812 depends on ISA
1813 ---help---
1814 This is a driver for the Mixcom hardware watchdog cards. This
1815 watchdog simply watches your kernel to make sure it doesn't freeze,
1816 and if it does, it reboots your computer after a certain amount of
1817 time.
1818
1819 To compile this driver as a module, choose M here: the
1820 module will be called mixcomwd.
1821
1822 Most people will say N.
1823
1824 config WDT
1825 tristate "WDT Watchdog timer"
1826 depends on ISA
1827 ---help---
1828 If you have a WDT500P or WDT501P watchdog board, say Y here,
1829 otherwise N. It is not possible to probe for this board, which means
1830 that you have to inform the kernel about the IO port and IRQ that
1831 is needed (you can do this via the io and irq parameters)
1832
1833 To compile this driver as a module, choose M here: the
1834 module will be called wdt.
1835
1836 #
1837 # PCI-based Watchdog Cards
1838 #
1839
1840 comment "PCI-based Watchdog Cards"
1841 depends on PCI
1842
1843 config PCIPCWATCHDOG
1844 tristate "Berkshire Products PCI-PC Watchdog"
1845 depends on PCI
1846 ---help---
1847 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1848 This card simply watches your kernel to make sure it doesn't freeze,
1849 and if it does, it reboots your computer after a certain amount of
1850 time. The card can also monitor the internal temperature of the PC.
1851 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1852
1853 To compile this driver as a module, choose M here: the
1854 module will be called pcwd_pci.
1855
1856 Most people will say N.
1857
1858 config WDTPCI
1859 tristate "PCI-WDT500/501 Watchdog timer"
1860 depends on PCI
1861 ---help---
1862 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1863
1864 If you have a PCI-WDT501 watchdog board then you can enable the
1865 temperature sensor by setting the type parameter to 501.
1866
1867 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1868 can do this via the tachometer parameter. Only do this if you have a
1869 fan tachometer actually set up.
1870
1871 To compile this driver as a module, choose M here: the
1872 module will be called wdt_pci.
1873
1874 #
1875 # USB-based Watchdog Cards
1876 #
1877
1878 comment "USB-based Watchdog Cards"
1879 depends on USB
1880
1881 config USBPCWATCHDOG
1882 tristate "Berkshire Products USB-PC Watchdog"
1883 depends on USB
1884 ---help---
1885 This is the driver for the Berkshire Products USB-PC Watchdog card.
1886 This card simply watches your kernel to make sure it doesn't freeze,
1887 and if it does, it reboots your computer after a certain amount of
1888 time. The card can also monitor the internal temperature of the PC.
1889 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1890
1891 To compile this driver as a module, choose M here: the
1892 module will be called pcwd_usb.
1893
1894 Most people will say N.
1895
1896 comment "Watchdog Pretimeout Governors"
1897
1898 config WATCHDOG_PRETIMEOUT_GOV
1899 bool "Enable watchdog pretimeout governors"
1900 help
1901 The option allows to select watchdog pretimeout governors.
1902
1903 if WATCHDOG_PRETIMEOUT_GOV
1904
1905 choice
1906 prompt "Default Watchdog Pretimeout Governor"
1907 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1908 help
1909 This option selects a default watchdog pretimeout governor.
1910 The governor takes its action, if a watchdog is capable
1911 to report a pretimeout event.
1912
1913 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
1914 bool "noop"
1915 select WATCHDOG_PRETIMEOUT_GOV_NOOP
1916 help
1917 Use noop watchdog pretimeout governor by default. If noop
1918 governor is selected by a user, write a short message to
1919 the kernel log buffer and don't do any system changes.
1920
1921 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1922 bool "panic"
1923 select WATCHDOG_PRETIMEOUT_GOV_PANIC
1924 help
1925 Use panic watchdog pretimeout governor by default, if
1926 a watchdog pretimeout event happens, consider that
1927 a watchdog feeder is dead and reboot is unavoidable.
1928
1929 endchoice
1930
1931 config WATCHDOG_PRETIMEOUT_GOV_NOOP
1932 tristate "Noop watchdog pretimeout governor"
1933 help
1934 Noop watchdog pretimeout governor, only an informational
1935 message is added to kernel log buffer.
1936
1937 config WATCHDOG_PRETIMEOUT_GOV_PANIC
1938 tristate "Panic watchdog pretimeout governor"
1939 help
1940 Panic watchdog pretimeout governor, on watchdog pretimeout
1941 event put the kernel into panic.
1942
1943 endif # WATCHDOG_PRETIMEOUT_GOV
1944
1945 endif # WATCHDOG