3 # Watchdog device configuration
7 bool "Watchdog Timer Support"
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.
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
33 bool "WatchDog Timer Driver Core"
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
40 config WATCHDOG_NOWAYOUT
41 bool "Disable watchdog shutdown on close"
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
49 config WATCHDOG_HANDLE_BOOT_ENABLED
50 bool "Update boot-enabled watchdog until userspace takes over"
53 The default watchdog behaviour (which you get if you say Y here) is
54 to ping watchdog devices that were enabled before the driver has
55 been loaded until control is taken over from userspace using the
56 /dev/watchdog file. If you say N here, the kernel will not update
57 the watchdog on its own. Thus if your userspace does not start fast
58 enough your device will reboot.
61 bool "Read different watchdog information through sysfs"
63 Say Y here if you want to enable watchdog device status read through
67 # General Watchdog drivers
70 comment "Watchdog Device Drivers"
72 # Architecture Independent
75 tristate "Software watchdog"
78 A software monitoring watchdog. This will fail to reboot your system
79 from some situations that the hardware watchdog will recover
80 from. Equally it's a lot cheaper to install.
82 To compile this driver as a module, choose M here: the
83 module will be called softdog.
85 config SOFT_WATCHDOG_PRETIMEOUT
86 bool "Software watchdog pretimeout governor support"
87 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
89 Enable this if you want to use pretimeout governors with the software
90 watchdog. Be aware that governors might affect the watchdog because it
91 is purely software, e.g. the panic governor will stall it!
93 config DA9052_WATCHDOG
94 tristate "Dialog DA9052 Watchdog"
95 depends on PMIC_DA9052 || COMPILE_TEST
98 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
101 Say Y here to include support for the DA9052 watchdog.
102 Alternatively say M to compile the driver as a module,
103 which will be called da9052_wdt.
105 config DA9055_WATCHDOG
106 tristate "Dialog Semiconductor DA9055 Watchdog"
107 depends on MFD_DA9055 || COMPILE_TEST
110 If you say yes here you get support for watchdog on the Dialog
111 Semiconductor DA9055 PMIC.
113 This driver can also be built as a module. If so, the module
114 will be called da9055_wdt.
116 config DA9063_WATCHDOG
117 tristate "Dialog DA9063 Watchdog"
118 depends on MFD_DA9063 || COMPILE_TEST
121 Support for the watchdog in the DA9063 PMIC.
123 This driver can be built as a module. The module name is da9063_wdt.
125 config DA9062_WATCHDOG
126 tristate "Dialog DA9062/61 Watchdog"
127 depends on MFD_DA9062 || COMPILE_TEST
130 Support for the watchdog in the DA9062 and DA9061 PMICs.
132 This driver can be built as a module. The module name is da9062_wdt.
135 tristate "Watchdog device controlled through GPIO-line"
139 If you say yes here you get support for watchdog device
140 controlled through GPIO-line.
142 config GPIO_WATCHDOG_ARCH_INITCALL
143 bool "Register the watchdog as early as possible"
144 depends on GPIO_WATCHDOG=y
146 In some situations, the default initcall level (module_init)
147 in not early enough in the boot process to avoid the watchdog
149 If you say yes here, the initcall level would be raised to
153 config MENF21BMC_WATCHDOG
154 tristate "MEN 14F021P00 BMC Watchdog"
155 depends on MFD_MENF21BMC || COMPILE_TEST
159 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
161 This driver can also be built as a module. If so the module
162 will be called menf21bmc_wdt.
164 config MENZ069_WATCHDOG
165 tristate "MEN 16Z069 Watchdog"
169 Say Y here to include support for the MEN 16Z069 Watchdog.
171 This driver can also be built as a module. If so the module
172 will be called menz069_wdt.
174 config TANGOX_WATCHDOG
175 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
177 depends on ARCH_TANGO || COMPILE_TEST
180 Support for the watchdog in Sigma Designs SMP86xx (tango3)
181 and SMP87xx (tango4) family chips.
183 This driver can be built as a module. The module name is tangox_wdt.
186 tristate "ACPI Watchdog Action Table (WDAT)"
191 This driver adds support for systems with ACPI Watchdog Action
192 Table (WDAT) table. Servers typically have this but it can be
193 found on some desktop machines as well. This driver will take
194 over the native iTCO watchdog driver found on many Intel CPUs.
196 To compile this driver as module, choose M here: the module will
199 config WM831X_WATCHDOG
200 tristate "WM831x watchdog"
201 depends on MFD_WM831X
204 Support for the watchdog in the WM831x AudioPlus PMICs. When
205 the watchdog triggers the system will be reset.
207 config WM8350_WATCHDOG
208 tristate "WM8350 watchdog"
209 depends on MFD_WM8350
212 Support for the watchdog in the WM8350 AudioPlus PMIC. When
213 the watchdog triggers the system will be reset.
215 config XILINX_WATCHDOG
216 tristate "Xilinx Watchdog timer"
220 Watchdog driver for the xps_timebase_wdt ip core.
222 To compile this driver as a module, choose M here: the
223 module will be called of_xilinx_wdt.
225 config ZIIRAVE_WATCHDOG
226 tristate "Zodiac RAVE Watchdog Timer"
230 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
233 To compile this driver as a module, choose M here: the
234 module will be called ziirave_wdt.
236 config RAVE_SP_WATCHDOG
237 tristate "RAVE SP Watchdog timer"
238 depends on RAVE_SP_CORE
239 depends on NVMEM || !NVMEM
242 Support for the watchdog on RAVE SP device.
248 config ARM_SP805_WATCHDOG
249 tristate "ARM SP805 Watchdog"
250 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
253 ARM Primecell SP805 Watchdog timer. This will reboot your system when
254 the timeout is reached.
256 config ARM_SBSA_WATCHDOG
257 tristate "ARM SBSA Generic Watchdog"
259 depends on ARM_ARCH_TIMER
262 ARM SBSA Generic Watchdog has two stage timeouts:
263 the first signal (WS0) is for alerting the system by interrupt,
264 the second one (WS1) is a real hardware reset.
265 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
267 This driver can operate ARM SBSA Generic Watchdog as a single stage
268 or a two stages watchdog, it depends on the module parameter "action".
270 Note: the maximum timeout in the two stages mode is half of that in
271 the single stage mode.
273 To compile this driver as module, choose M here: The module
274 will be called sbsa_gwdt.
276 config ASM9260_WATCHDOG
277 tristate "Alphascale ASM9260 watchdog"
278 depends on MACH_ASM9260 || COMPILE_TEST
281 select RESET_CONTROLLER
283 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
284 system when the timeout is reached.
286 config AT91RM9200_WATCHDOG
287 tristate "AT91RM9200 watchdog"
288 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
290 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
291 system when the timeout is reached.
293 config AT91SAM9X_WATCHDOG
294 tristate "AT91SAM9X / AT91CAP9 watchdog"
295 depends on ARCH_AT91 || COMPILE_TEST
298 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
299 reboot your system when the timeout is reached.
301 config SAMA5D4_WATCHDOG
302 tristate "Atmel SAMA5D4 Watchdog Timer"
303 depends on ARCH_AT91 || COMPILE_TEST
306 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
307 Its Watchdog Timer Mode Register can be written more than once.
308 This will reboot your system when the timeout is reached.
310 config CADENCE_WATCHDOG
311 tristate "Cadence Watchdog Timer"
315 Say Y here if you want to include support for the watchdog
316 timer in the Xilinx Zynq.
318 config 21285_WATCHDOG
319 tristate "DC21285 watchdog"
320 depends on FOOTBRIDGE
322 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
323 here if you wish to use this. Alternatively say M to compile the
324 driver as a module, which will be called wdt285.
326 This driver does not work on all machines. In particular, early CATS
327 boards have hardware problems that will cause the machine to simply
328 lock up if the watchdog fires.
330 "If in doubt, leave it out" - say N.
333 tristate "NetWinder WB83C977 watchdog"
334 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
336 Say Y here to include support for the WB977 watchdog included in
337 NetWinder machines. Alternatively say M to compile the driver as
338 a module, which will be called wdt977.
340 Not sure? It's safe to say N.
342 config FTWDT010_WATCHDOG
343 tristate "Faraday Technology FTWDT010 watchdog"
344 depends on ARM || COMPILE_TEST
348 Say Y here if to include support for the Faraday Technology
349 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
352 To compile this driver as a module, choose M here: the
353 module will be called ftwdt010_wdt.
355 config IXP4XX_WATCHDOG
356 tristate "IXP4xx Watchdog"
357 depends on ARCH_IXP4XX
359 Say Y here if to include support for the watchdog timer
360 in the Intel IXP4xx network processors. This driver can
361 be built as a module by choosing M. The module will
362 be called ixp4xx_wdt.
364 Note: The internal IXP4xx watchdog does a soft CPU reset
365 which doesn't reset any peripherals. There are circumstances
366 where the watchdog will fail to reset the board correctly
367 (e.g., if the boot ROM is in an unreadable state).
369 Say N if you are unsure.
371 config KS8695_WATCHDOG
372 tristate "KS8695 watchdog"
373 depends on ARCH_KS8695
375 Watchdog timer embedded into KS8695 processor. This will reboot your
376 system when the timeout is reached.
378 config HAVE_S3C2410_WATCHDOG
381 This will include watchdog timer support for Samsung SoCs. If
382 you want to include watchdog support for any machine, kindly
383 select this in the respective mach-XXXX/Kconfig file.
385 config S3C2410_WATCHDOG
386 tristate "S3C2410 Watchdog"
387 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
389 select MFD_SYSCON if ARCH_EXYNOS
391 Watchdog timer block in the Samsung SoCs. This will reboot
392 the system when the timer expires with the watchdog enabled.
394 The driver is limited by the speed of the system's PCLK
395 signal, so with reasonably fast systems (PCLK around 50-66MHz)
396 then watchdog intervals of over approximately 20seconds are
399 The driver can be built as a module by choosing M, and will
400 be called s3c2410_wdt
402 config SA1100_WATCHDOG
403 tristate "SA1100/PXA2xx watchdog"
404 depends on ARCH_SA1100 || ARCH_PXA
406 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
407 reboot your system when timeout is reached.
409 NOTE: once enabled, this timer cannot be disabled.
411 To compile this driver as a module, choose M here: the
412 module will be called sa1100_wdt.
415 tristate "Synopsys DesignWare watchdog"
419 Say Y here if to include support for the Synopsys DesignWare
420 watchdog timer found in many chips.
421 To compile this driver as a module, choose M here: the
422 module will be called dw_wdt.
424 config EP93XX_WATCHDOG
425 tristate "EP93xx Watchdog"
426 depends on ARCH_EP93XX || COMPILE_TEST
429 Say Y here if to include support for the watchdog timer
430 embedded in the Cirrus Logic EP93xx family of devices.
432 To compile this driver as a module, choose M here: the
433 module will be called ep93xx_wdt.
436 tristate "OMAP Watchdog"
437 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
440 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
441 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
443 config PNX4008_WATCHDOG
444 tristate "LPC32XX Watchdog"
445 depends on ARCH_LPC32XX
448 Say Y here if to include support for the watchdog timer
449 in the LPC32XX processor.
450 This driver can be built as a module by choosing M. The module
451 will be called pnx4008_wdt.
453 Say N if you are unsure.
456 tristate "IOP Watchdog"
457 depends on ARCH_IOP13XX
458 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
460 Say Y here if to include support for the watchdog timer
461 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
462 be built as a module by choosing M. The module will
465 Note: The IOP13XX watchdog does an Internal Bus Reset which will
466 affect both cores and the peripherals of the IOP. The ATU-X
467 and/or ATUe configuration registers will remain intact, but if
468 operating as an Root Complex and/or Central Resource, the PCI-X
469 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
471 config DAVINCI_WATCHDOG
472 tristate "DaVinci watchdog"
473 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
476 Say Y here if to include support for the watchdog timer
477 in the DaVinci DM644x/DM646x or Keystone processors.
478 To compile this driver as a module, choose M here: the
479 module will be called davinci_wdt.
481 NOTE: once enabled, this timer cannot be disabled.
482 Say N if you are unsure.
484 config ORION_WATCHDOG
485 tristate "Orion watchdog"
486 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
490 Say Y here if to include support for the watchdog timer
491 in the Marvell Orion5x and Kirkwood ARM SoCs.
492 To compile this driver as a module, choose M here: the
493 module will be called orion_wdt.
495 config RN5T618_WATCHDOG
496 tristate "Ricoh RN5T618 watchdog"
497 depends on MFD_RN5T618 || COMPILE_TEST
500 If you say yes here you get support for watchdog on the Ricoh
503 This driver can also be built as a module. If so, the module
504 will be called rn5t618_wdt.
506 config SUNXI_WATCHDOG
507 tristate "Allwinner SoCs watchdog support"
508 depends on ARCH_SUNXI || COMPILE_TEST
511 Say Y here to include support for the watchdog timer
513 To compile this driver as a module, choose M here: the
514 module will be called sunxi_wdt.
516 config COH901327_WATCHDOG
517 bool "ST-Ericsson COH 901 327 watchdog"
518 depends on ARCH_U300 || (ARM && COMPILE_TEST)
519 default y if MACH_U300
522 Say Y here to include Watchdog timer support for the
523 watchdog embedded into the ST-Ericsson U300 series platforms.
524 This watchdog is used to reset the system and thus cannot be
525 compiled as a module.
527 config NPCM7XX_WATCHDOG
528 bool "Nuvoton NPCM750 watchdog"
529 depends on ARCH_NPCM || COMPILE_TEST
530 default y if ARCH_NPCM750
533 Say Y here to include Watchdog timer support for the
534 watchdog embedded into the NPCM7xx.
535 This watchdog is used to reset the system and thus cannot be
536 compiled as a module.
538 config TWL4030_WATCHDOG
539 tristate "TWL4030 Watchdog"
540 depends on TWL4030_CORE
543 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
544 watchdog timer support for TWL4030 chips.
546 config STMP3XXX_RTC_WATCHDOG
547 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
548 depends on RTC_DRV_STMP || COMPILE_TEST
551 Say Y here to include support for the watchdog timer inside
552 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
553 To compile this driver as a module, choose M here: the
554 module will be called stmp3xxx_rtc_wdt.
556 config NUC900_WATCHDOG
557 tristate "Nuvoton NUC900 watchdog"
558 depends on ARCH_W90X900 || COMPILE_TEST
560 Say Y here if to include support for the watchdog timer
561 for the Nuvoton NUC900 series SoCs.
562 To compile this driver as a module, choose M here: the
563 module will be called nuc900_wdt.
565 config TS4800_WATCHDOG
566 tristate "TS-4800 Watchdog"
567 depends on HAS_IOMEM && OF
568 depends on SOC_IMX51 || COMPILE_TEST
572 Technologic Systems TS-4800 has watchdog timer implemented in
573 an external FPGA. Say Y here if you want to support for the
574 watchdog timer on TS-4800 board.
576 config TS72XX_WATCHDOG
577 tristate "TS-72XX SBC Watchdog"
578 depends on MACH_TS72XX || COMPILE_TEST
580 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
581 watchdog timer implemented in a external CPLD chip. Say Y here
582 if you want to support for the watchdog timer on TS-72XX boards.
584 To compile this driver as a module, choose M here: the
585 module will be called ts72xx_wdt.
587 config MAX63XX_WATCHDOG
588 tristate "Max63xx watchdog"
592 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
594 config MAX77620_WATCHDOG
595 tristate "Maxim Max77620 Watchdog Timer"
596 depends on MFD_MAX77620 || COMPILE_TEST
598 This is the driver for the Max77620 watchdog timer.
599 Say 'Y' here to enable the watchdog timer support for
600 MAX77620 chips. To compile this driver as a module,
601 choose M here: the module will be called max77620_wdt.
604 tristate "IMX2+ Watchdog"
605 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
609 This is the driver for the hardware watchdog
610 on the Freescale IMX2 and later processors.
611 If you have one of these processors and wish to have
612 watchdog support enabled, say Y, otherwise say N.
614 To compile this driver as a module, choose M here: the
615 module will be called imx2_wdt.
617 config UX500_WATCHDOG
618 tristate "ST-Ericsson Ux500 watchdog"
619 depends on MFD_DB8500_PRCMU
623 Say Y here to include Watchdog timer support for the watchdog
624 existing in the prcmu of ST-Ericsson Ux500 series platforms.
626 To compile this driver as a module, choose M here: the
627 module will be called ux500_wdt.
630 tristate "Retu watchdog"
634 Retu watchdog driver for Nokia Internet Tablets (770, N800,
635 N810). At least on N800 the watchdog cannot be disabled, so
636 this driver is essential and you should enable it.
638 To compile this driver as a module, choose M here: the
639 module will be called retu_wdt.
642 tristate "MOXART watchdog"
643 depends on ARCH_MOXART || COMPILE_TEST
645 Say Y here to include Watchdog timer support for the watchdog
646 existing on the MOXA ART SoC series platforms.
648 To compile this driver as a module, choose M here: the
649 module will be called moxart_wdt.
651 config SIRFSOC_WATCHDOG
652 tristate "SiRFSOC watchdog"
653 depends on ARCH_SIRF || COMPILE_TEST
657 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
658 the watchdog triggers the system will be reset.
660 config ST_LPC_WATCHDOG
661 tristate "STMicroelectronics LPC Watchdog"
662 depends on ARCH_STI || COMPILE_TEST
666 Say Y here to include STMicroelectronics Low Power Controller
667 (LPC) based Watchdog timer support.
669 To compile this driver as a module, choose M here: the
670 module will be called st_lpc_wdt.
672 config TEGRA_WATCHDOG
673 tristate "Tegra watchdog"
674 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
677 Say Y here to include support for the watchdog timer
678 embedded in NVIDIA Tegra SoCs.
680 To compile this driver as a module, choose M here: the
681 module will be called tegra_wdt.
684 tristate "QCOM watchdog"
686 depends on ARCH_QCOM || COMPILE_TEST
689 Say Y here to include Watchdog timer support for the watchdog found
690 on QCOM chipsets. Currently supported targets are the MSM8960,
691 APQ8064, and IPQ8064.
693 To compile this driver as a module, choose M here: the
694 module will be called qcom_wdt.
696 config MESON_GXBB_WATCHDOG
697 tristate "Amlogic Meson GXBB SoCs watchdog support"
698 depends on ARCH_MESON || COMPILE_TEST
701 Say Y here to include support for the watchdog timer
702 in Amlogic Meson GXBB SoCs.
703 To compile this driver as a module, choose M here: the
704 module will be called meson_gxbb_wdt.
706 config MESON_WATCHDOG
707 tristate "Amlogic Meson SoCs watchdog support"
708 depends on ARCH_MESON || COMPILE_TEST
711 Say Y here to include support for the watchdog timer
712 in Amlogic Meson SoCs.
713 To compile this driver as a module, choose M here: the
714 module will be called meson_wdt.
716 config MEDIATEK_WATCHDOG
717 tristate "Mediatek SoCs watchdog support"
718 depends on ARCH_MEDIATEK || COMPILE_TEST
721 Say Y here to include support for the watchdog timer
723 To compile this driver as a module, choose M here: the
724 module will be called mtk_wdt.
726 config DIGICOLOR_WATCHDOG
727 tristate "Conexant Digicolor SoCs watchdog support"
728 depends on ARCH_DIGICOLOR || COMPILE_TEST
731 Say Y here to include support for the watchdog timer
732 in Conexant Digicolor SoCs.
733 To compile this driver as a module, choose M here: the
734 module will be called digicolor_wdt.
736 config LPC18XX_WATCHDOG
737 tristate "LPC18xx/43xx Watchdog"
738 depends on ARCH_LPC18XX || COMPILE_TEST
742 Say Y here if to include support for the watchdog timer
743 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
745 To compile this driver as a module, choose M here: the
746 module will be called lpc18xx_wdt.
748 config ATLAS7_WATCHDOG
749 tristate "CSRatlas7 watchdog"
750 depends on ARCH_ATLAS7 || COMPILE_TEST
752 Say Y here to include Watchdog timer support for the watchdog
753 existing on the CSRatlas7 series platforms.
755 To compile this driver as a module, choose M here: the
756 module will be called atlas7_wdt.
759 tristate "Renesas WDT Watchdog"
760 depends on ARCH_RENESAS || COMPILE_TEST
763 This driver adds watchdog support for the integrated watchdogs in the
764 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
766 config RENESAS_RZAWDT
767 tristate "Renesas RZ/A WDT Watchdog"
768 depends on ARCH_RENESAS || COMPILE_TEST
771 This driver adds watchdog support for the integrated watchdogs in the
772 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
774 config ASPEED_WATCHDOG
775 tristate "Aspeed BMC watchdog support"
776 depends on ARCH_ASPEED || COMPILE_TEST
779 Say Y here to include support for the watchdog timer
782 This driver is required to reboot the SoC.
784 To compile this driver as a module, choose M here: the
785 module will be called aspeed_wdt.
787 config ZX2967_WATCHDOG
788 tristate "ZTE zx2967 SoCs watchdog support"
792 Say Y here to include support for the watchdog timer
794 To compile this driver as a module, choose M here: the
795 module will be called zx2967_wdt.
797 config STM32_WATCHDOG
798 tristate "STM32 Independent WatchDoG (IWDG) support"
799 depends on ARCH_STM32
803 Say Y here to include support for the watchdog timer
806 To compile this driver as a module, choose M here: the
807 module will be called stm32_iwdg.
809 config UNIPHIER_WATCHDOG
810 tristate "UniPhier watchdog support"
811 depends on ARCH_UNIPHIER || COMPILE_TEST
812 depends on OF && MFD_SYSCON
815 Say Y here to include support watchdog timer embedded
816 into the UniPhier system.
818 To compile this driver as a module, choose M here: the
819 module will be called uniphier_wdt.
821 config RTD119X_WATCHDOG
822 bool "Realtek RTD119x/RTD129x watchdog support"
823 depends on ARCH_REALTEK || COMPILE_TEST
828 Say Y here to include support for the watchdog timer in
829 Realtek RTD1295 SoCs.
832 tristate "Spreadtrum watchdog support"
833 depends on ARCH_SPRD || COMPILE_TEST
836 Say Y here to include watchdog timer supported
837 by Spreadtrum system.
839 # X86 (i386 + ia64 + x86_64) Architecture
842 tristate "Acquire SBC Watchdog Timer"
845 This is the driver for the hardware watchdog on Single Board
846 Computers produced by Acquire Inc (and others). This watchdog
847 simply watches your kernel to make sure it doesn't freeze, and if
848 it does, it reboots your computer after a certain amount of time.
850 To compile this driver as a module, choose M here: the
851 module will be called acquirewdt.
853 Most people will say N.
856 tristate "Advantech SBC Watchdog Timer"
859 If you are configuring a Linux kernel for the Advantech single-board
860 computer, say `Y' here to support its built-in watchdog timer
861 feature. More information can be found at
862 <http://www.advantech.com.tw/products/>
865 tristate "ALi M1535 PMU Watchdog Timer"
866 depends on X86 && PCI
868 This is the driver for the hardware watchdog on the ALi M1535 PMU.
870 To compile this driver as a module, choose M here: the
871 module will be called alim1535_wdt.
873 Most people will say N.
876 tristate "ALi M7101 PMU Computer Watchdog"
879 This is the driver for the hardware watchdog on the ALi M7101 PMU
880 as used in the x86 Cobalt servers and also found in some
881 SPARC Netra servers too.
883 To compile this driver as a module, choose M here: the
884 module will be called alim7101_wdt.
886 Most people will say N.
889 tristate "WinSystems EBC-C384 Watchdog Timer"
894 Enables watchdog timer support for the watchdog timer on the
895 WinSystems EBC-C384 motherboard. The timeout may be configured via
896 the timeout module parameter.
899 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
902 This is the driver for the hardware watchdog on the Fintek F71808E,
903 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866
904 Super I/O controllers.
906 You can compile this driver directly into the kernel, or use
907 it as a module. The module will be called f71808e_wdt.
910 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
911 depends on X86 && PCI
914 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
915 (Total Cost of Ownership) timer is a watchdog timer that will reboot
916 the machine after its expiration. The expiration time can be
917 configured with the "heartbeat" parameter.
919 To compile this driver as a module, choose M here: the
920 module will be called sp5100_tco.
923 tristate "AMD Geode CS5535/CS5536 Watchdog"
924 depends on CS5535_MFGPT
926 This driver enables a watchdog capability built into the
927 CS5535/CS5536 companion chips for the AMD Geode GX and LX
928 processors. This watchdog watches your kernel to make sure
929 it doesn't freeze, and if it does, it reboots your computer after
930 a certain amount of time.
932 You can compile this driver directly into the kernel, or use
933 it as a module. The module will be called geodewdt.
936 tristate "AMD Elan SC520 processor Watchdog"
937 depends on MELAN || COMPILE_TEST
939 This is the driver for the hardware watchdog built in to the
940 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
941 This watchdog simply watches your kernel to make sure it doesn't
942 freeze, and if it does, it reboots your computer after a certain
945 You can compile this driver directly into the kernel, or use
946 it as a module. The module will be called sc520_wdt.
948 config SBC_FITPC2_WATCHDOG
949 tristate "Compulab SBC-FITPC2 watchdog"
952 This is the driver for the built-in watchdog timer on the fit-PC2,
953 fit-PC2i, CM-iAM single-board computers made by Compulab.
955 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
956 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
958 Entering BIOS setup temporary disables watchdog operation regardless to current state,
959 so system will not be restarted while user in BIOS setup.
961 Once watchdog was enabled the system will be restarted every
962 "Watchdog Timer Value" period, so to prevent it user can restart or
963 disable the watchdog.
965 To compile this driver as a module, choose M here: the
966 module will be called sbc_fitpc2_wdt.
968 Most people will say N.
971 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
974 Enable support for the watchdog timer on the Eurotech CPU-1220 and
975 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
976 information are at <http://www.eurotech.it/>.
979 tristate "IB700 SBC Watchdog Timer"
982 This is the driver for the hardware watchdog on the IB700 Single
983 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
984 simply watches your kernel to make sure it doesn't freeze, and if
985 it does, it reboots your computer after a certain amount of time.
987 This driver is like the WDT501 driver but for slightly different hardware.
989 To compile this driver as a module, choose M here: the
990 module will be called ib700wdt.
992 Most people will say N.
995 tristate "IBM Automatic Server Restart"
998 This is the driver for the IBM Automatic Server Restart watchdog
999 timer built-in into some eServer xSeries machines.
1001 To compile this driver as a module, choose M here: the
1002 module will be called ibmasr.
1005 tristate "ICP Single Board Computer Watchdog Timer"
1008 This is a driver for the hardware watchdog on the ICP Single
1009 Board Computer. This driver is working on (at least) the following
1010 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1012 To compile this driver as a module, choose M here: the
1013 module will be called wafer5823wdt.
1016 tristate "Intel 6300ESB Timer/Watchdog"
1018 select WATCHDOG_CORE
1020 Hardware driver for the watchdog timer built into the Intel
1021 6300ESB controller hub.
1023 To compile this driver as a module, choose M here: the
1024 module will be called i6300esb.
1027 tristate "Intel Atom E6xx Watchdog"
1028 depends on X86 && PCI
1029 select WATCHDOG_CORE
1033 Hardware driver for the watchdog timer built into the Intel
1034 Atom E6XX (TunnelCreek) processor.
1036 To compile this driver as a module, choose M here: the
1037 module will be called ie6xx_wdt.
1039 config INTEL_SCU_WATCHDOG
1040 bool "Intel SCU Watchdog for Mobile Platforms"
1041 depends on X86_INTEL_MID
1043 Hardware driver for the watchdog time built into the Intel SCU
1044 for Intel Mobile Platforms.
1046 To compile this driver as a module, choose M here.
1048 config INTEL_MID_WATCHDOG
1049 tristate "Intel MID Watchdog Timer"
1050 depends on X86_INTEL_MID
1051 select WATCHDOG_CORE
1053 Watchdog timer driver built into the Intel SCU for Intel MID
1056 This driver currently supports only the watchdog evolution
1057 implementation in SCU, available for Merrifield generation.
1059 To compile this driver as a module, choose M here.
1062 tristate "Intel TCO Timer/Watchdog"
1063 depends on (X86 || IA64) && PCI
1064 select WATCHDOG_CORE
1065 depends on I2C || I2C=n
1066 select LPC_ICH if !EXPERT
1067 select I2C_I801 if !EXPERT && I2C
1069 Hardware driver for the intel TCO timer based watchdog devices.
1070 These drivers are included in the Intel 82801 I/O Controller
1071 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1074 The TCO (Total Cost of Ownership) timer is a watchdog timer
1075 that will reboot the machine after its second expiration. The
1076 expiration time can be configured with the "heartbeat" parameter.
1078 On some motherboards the driver may fail to reset the chipset's
1079 NO_REBOOT flag which prevents the watchdog from rebooting the
1080 machine. If this is the case you will get a kernel message like
1081 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1083 To compile this driver as a module, choose M here: the
1084 module will be called iTCO_wdt.
1086 config ITCO_VENDOR_SUPPORT
1087 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1090 Add vendor specific support to the intel TCO timer based watchdog
1091 devices. At this moment we only have additional support for some
1092 SuperMicro Inc. motherboards.
1095 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1098 This is the driver for the built-in watchdog timer on the IT8712F
1099 Super I/0 chipset used on many motherboards.
1101 If the driver does not work, then make sure that the game port in
1102 the BIOS is enabled.
1104 To compile this driver as a module, choose M here: the
1105 module will be called it8712f_wdt.
1108 tristate "IT87 Watchdog Timer"
1110 select WATCHDOG_CORE
1112 This is the driver for the hardware watchdog on the ITE IT8607,
1113 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1114 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1115 IT8783 Super I/O chips.
1117 This watchdog simply watches your kernel to make sure it doesn't
1118 freeze, and if it does, it reboots your computer after a certain
1121 To compile this driver as a module, choose M here: the module will
1125 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1126 select WATCHDOG_CORE
1127 depends on X86 && PCI
1129 A software monitoring watchdog and NMI sourcing driver. This driver
1130 will detect lockups and provide a stack trace. This is a driver that
1131 will only load on an HP ProLiant system with a minimum of iLO2 support.
1132 To compile this driver as a module, choose M here: the module will be
1136 tristate "Kontron COM Watchdog Timer"
1137 depends on MFD_KEMPLD
1138 select WATCHDOG_CORE
1140 Support for the PLD watchdog on some Kontron ETX and COMexpress
1141 (ETXexpress) modules
1143 This driver can also be built as a module. If so, the module will be
1146 config HPWDT_NMI_DECODING
1147 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1148 depends on HP_WATCHDOG
1151 When an NMI occurs this feature will make the necessary BIOS calls to
1152 log the cause of the NMI.
1155 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1158 This is a driver for National Semiconductor PC87307/PC97307 hardware
1159 watchdog cards as found on the SC1200. This watchdog is mainly used
1160 for power management purposes and can be used to power down the device
1161 during inactivity periods (includes interrupt activity monitoring).
1163 To compile this driver as a module, choose M here: the
1164 module will be called sc1200wdt.
1166 Most people will say N.
1169 tristate "National Semiconductor SCx200 Watchdog"
1170 depends on SCx200 && PCI
1172 Enable the built-in watchdog timer support on the National
1173 Semiconductor SCx200 processors.
1175 If compiled as a module, it will be called scx200_wdt.
1178 tristate "NS PC87413 watchdog"
1181 This is the driver for the hardware watchdog on the PC87413 chipset
1182 This watchdog simply watches your kernel to make sure it doesn't
1183 freeze, and if it does, it reboots your computer after a certain
1186 To compile this driver as a module, choose M here: the
1187 module will be called pc87413_wdt.
1189 Most people will say N.
1192 tristate "nVidia TCO Timer/Watchdog"
1193 depends on X86 && PCI
1195 Hardware driver for the TCO timer built into the nVidia Hub family
1196 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1197 watchdog timer that will reboot the machine after its second
1198 expiration. The expiration time can be configured with the
1199 "heartbeat" parameter.
1201 On some motherboards the driver may fail to reset the chipset's
1202 NO_REBOOT flag which prevents the watchdog from rebooting the
1203 machine. If this is the case you will get a kernel message like
1204 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1206 To compile this driver as a module, choose M here: the
1207 module will be called nv_tco.
1210 tristate "RDC R-321x SoC watchdog"
1211 depends on X86_RDC321X || COMPILE_TEST
1214 This is the driver for the built in hardware watchdog
1215 in the RDC R-321x SoC.
1217 To compile this driver as a module, choose M here: the
1218 module will be called rdc321x_wdt.
1221 tristate "SBC-60XX Watchdog Timer"
1224 This driver can be used with the watchdog timer found on some
1225 single board computers, namely the 6010 PII based computer.
1226 It may well work with other cards. It reads port 0x443 to enable
1227 and re-set the watchdog timer, and reads port 0x45 to disable
1228 the watchdog. If you have a card that behave in similar ways,
1229 you can probably make this driver work with your card as well.
1231 You can compile this driver directly into the kernel, or use
1232 it as a module. The module will be called sbc60xxwdt.
1235 tristate "SBC8360 Watchdog Timer"
1239 This is the driver for the hardware watchdog on the SBC8360 Single
1240 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1242 To compile this driver as a module, choose M here: the
1243 module will be called sbc8360.
1245 Most people will say N.
1248 tristate "SBC Nano 7240 Watchdog Timer"
1249 depends on X86_32 && !UML
1251 This is the driver for the hardware watchdog found on the IEI
1252 single board computers EPIC Nano 7240 (and likely others). This
1253 watchdog simply watches your kernel to make sure it doesn't freeze,
1254 and if it does, it reboots your computer after a certain amount of
1257 To compile this driver as a module, choose M here: the
1258 module will be called sbc7240_wdt.
1261 tristate "SMA CPU5 Watchdog"
1265 To compile this driver as a module, choose M here: the
1266 module will be called cpu5wdt.
1268 config SMSC_SCH311X_WDT
1269 tristate "SMSC SCH311X Watchdog Timer"
1272 This is the driver for the hardware watchdog timer on the
1273 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1274 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1277 To compile this driver as a module, choose M here: the
1278 module will be called sch311x_wdt.
1280 config SMSC37B787_WDT
1281 tristate "Winbond SMsC37B787 Watchdog Timer"
1284 This is the driver for the hardware watchdog component on the
1285 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1286 from Vision Systems and maybe others.
1288 This watchdog simply watches your kernel to make sure it doesn't
1289 freeze, and if it does, it reboots your computer after a certain
1292 Usually a userspace daemon will notify the kernel WDT driver that
1293 userspace is still alive, at regular intervals.
1295 To compile this driver as a module, choose M here: the
1296 module will be called smsc37b787_wdt.
1298 Most people will say N.
1301 tristate "VIA Watchdog Timer"
1302 depends on X86 && PCI
1303 select WATCHDOG_CORE
1305 This is the driver for the hardware watchdog timer on VIA
1306 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1308 To compile this driver as a module, choose M here; the module
1309 will be called via_wdt.
1311 Most people will say N.
1314 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1316 select WATCHDOG_CORE
1318 This is the driver for the hardware watchdog on the following
1320 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1333 This watchdog simply watches your kernel to make sure it doesn't
1334 freeze, and if it does, it reboots your computer after a certain
1337 To compile this driver as a module, choose M here: the
1338 module will be called w83627hf_wdt.
1340 Most people will say N.
1343 tristate "W83877F (EMACS) Watchdog Timer"
1346 This is the driver for the hardware watchdog on the W83877F chipset
1347 as used in EMACS PC-104 motherboards (and likely others). This
1348 watchdog simply watches your kernel to make sure it doesn't freeze,
1349 and if it does, it reboots your computer after a certain amount of
1352 To compile this driver as a module, choose M here: the
1353 module will be called w83877f_wdt.
1355 Most people will say N.
1358 tristate "W83977F (PCM-5335) Watchdog Timer"
1361 This is the driver for the hardware watchdog on the W83977F I/O chip
1362 as used in AAEON's PCM-5335 SBC (and likely others). This
1363 watchdog simply watches your kernel to make sure it doesn't freeze,
1364 and if it does, it reboots your computer after a certain amount of
1367 To compile this driver as a module, choose M here: the
1368 module will be called w83977f_wdt.
1371 tristate "ZF MachZ Watchdog"
1374 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1375 N. This is the driver for the watchdog timer built-in on that
1376 processor using ZF-Logic interface. This watchdog simply watches
1377 your kernel to make sure it doesn't freeze, and if it does, it
1378 reboots your computer after a certain amount of time.
1380 To compile this driver as a module, choose M here: the
1381 module will be called machzwd.
1383 config SBC_EPX_C3_WATCHDOG
1384 tristate "Winsystems SBC EPX-C3 watchdog"
1387 This is the driver for the built-in watchdog timer on the EPX-C3
1388 Single-board computer made by Winsystems, Inc.
1390 *Note*: This hardware watchdog is not probeable and thus there
1391 is no way to know if writing to its IO address will corrupt
1392 your system or have any real effect. The only way to be sure
1393 that this driver does what you want is to make sure you
1394 are running it on an EPX-C3 from Winsystems with the watchdog
1395 timer at IO address 0x1ee and 0x1ef. It will write to both those
1396 IO ports. Basically, the assumption is made that if you compile
1397 this driver into your kernel and/or load it as a module, that you
1398 know what you are doing and that you are in fact running on an
1401 To compile this driver as a module, choose M here: the
1402 module will be called sbc_epx_c3.
1404 config INTEL_MEI_WDT
1405 tristate "Intel MEI iAMT Watchdog"
1406 depends on INTEL_MEI && X86
1407 select WATCHDOG_CORE
1409 A device driver for the Intel MEI iAMT watchdog.
1411 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1412 Whenever the OS hangs or crashes, iAMT will send an event
1413 to any subscriber to this event. The watchdog doesn't reset the
1416 To compile this driver as a module, choose M here:
1417 the module will be called mei_wdt.
1420 tristate "NI 903x/913x Watchdog"
1421 depends on X86 && ACPI
1422 select WATCHDOG_CORE
1424 This is the driver for the watchdog timer on the National Instruments
1425 903x/913x real-time controllers.
1427 To compile this driver as a module, choose M here: the module will be
1431 tristate "NIC7018 Watchdog"
1432 depends on X86 && ACPI
1433 select WATCHDOG_CORE
1435 Support for National Instruments NIC7018 Watchdog.
1437 To compile this driver as a module, choose M here: the module will be
1442 config M54xx_WATCHDOG
1443 tristate "MCF54xx watchdog support"
1446 To compile this driver as a module, choose M here: the
1447 module will be called m54xx_wdt.
1449 # MicroBlaze Architecture
1454 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1455 depends on ATH79 || (ARM && COMPILE_TEST)
1457 Hardware driver for the built-in watchdog timer on the Atheros
1458 AR71XX/AR724X/AR913X SoCs.
1461 tristate "Broadcom BCM47xx Watchdog Timer"
1462 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1463 select WATCHDOG_CORE
1465 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1468 tristate "IDT RC32434 SoC Watchdog Timer"
1469 depends on MIKROTIK_RB532
1471 Hardware driver for the IDT RC32434 SoC built-in
1474 To compile this driver as a module, choose M here: the
1475 module will be called rc32434_wdt.
1478 tristate "Indy/I2 Hardware Watchdog"
1479 depends on SGI_HAS_INDYDOG
1481 Hardware driver for the Indy's/I2's watchdog. This is a
1482 watchdog timer that will reboot the machine after a 60 second
1483 timer expired and no process has written to /dev/watchdog during
1487 tristate "Ingenic jz4740 SoC hardware watchdog"
1488 depends on MACH_JZ4740 || MACH_JZ4780
1489 select WATCHDOG_CORE
1491 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1494 tristate "MTX-1 Hardware Watchdog"
1495 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1497 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1498 will reboot the machine after a 100 seconds timer expired.
1501 tristate "PNX833x Hardware Watchdog"
1502 depends on SOC_PNX8335
1505 Hardware driver for the PNX833x's watchdog. This is a
1506 watchdog timer that will reboot the machine after a programmable
1507 timer has expired and no process has written to /dev/watchdog during
1511 tristate "Sibyte SoC hardware watchdog"
1512 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1514 Watchdog driver for the built in watchdog hardware in Sibyte
1515 SoC processors. There are apparently two watchdog timers
1516 on such processors; this driver supports only the first one,
1517 because currently Linux only supports exporting one watchdog
1520 To compile this driver as a loadable module, choose M here.
1521 The module will be called sb_wdog.
1524 tristate "TI AR7 Watchdog Timer"
1525 depends on AR7 || (MIPS && COMPILE_TEST)
1527 Hardware driver for the TI AR7 Watchdog Timer.
1530 tristate "Toshiba TXx9 Watchdog Timer"
1531 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1532 select WATCHDOG_CORE
1534 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1537 tristate "Cavium OCTEON SOC family Watchdog Timer"
1538 depends on CAVIUM_OCTEON_SOC
1540 select WATCHDOG_CORE
1541 select EXPORT_UASM if OCTEON_WDT = m
1543 Hardware driver for OCTEON's on chip watchdog timer.
1544 Enables the watchdog for all cores running Linux. It
1545 installs a NMI handler and pokes the watchdog based on an
1546 interrupt. On first expiration of the watchdog, the
1547 interrupt handler pokes it. The second expiration causes an
1548 NMI that prints a message. The third expiration causes a
1551 When userspace has /dev/watchdog open, no poking is done
1552 from the first interrupt, it is then only poked when the
1556 tristate "Broadcom BCM63xx hardware watchdog"
1559 Watchdog driver for the built in watchdog hardware in Broadcom
1562 To compile this driver as a loadable module, choose M here.
1563 The module will be called bcm63xx_wdt.
1566 tristate "Broadcom BCM2835 hardware watchdog"
1567 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1568 select WATCHDOG_CORE
1570 Watchdog driver for the built in watchdog hardware in Broadcom
1573 To compile this driver as a loadable module, choose M here.
1574 The module will be called bcm2835_wdt.
1577 tristate "BCM Kona Watchdog"
1578 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1579 select WATCHDOG_CORE
1581 Support for the watchdog timer on the following Broadcom BCM281xx
1582 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1585 Say 'Y' or 'M' here to enable the driver. The module will be called
1588 config BCM_KONA_WDT_DEBUG
1589 bool "DEBUGFS support for BCM Kona Watchdog"
1590 depends on BCM_KONA_WDT || COMPILE_TEST
1592 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1593 access to the driver's internal data structures as well as watchdog
1594 timer hardware registres.
1596 If in doubt, say 'N'.
1599 tristate "BCM7038 Watchdog"
1600 select WATCHDOG_CORE
1601 depends on HAS_IOMEM
1602 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1604 Watchdog driver for the built-in hardware in Broadcom 7038 and
1605 later SoCs used in set-top boxes. BCM7038 was made public
1606 during the 2004 CES, and since then, many Broadcom chips use this
1607 watchdog block, including some cable modem chips.
1610 tristate "Imagination Technologies PDC Watchdog Timer"
1611 depends on HAS_IOMEM
1612 depends on MIPS || COMPILE_TEST
1613 select WATCHDOG_CORE
1615 Driver for Imagination Technologies PowerDown Controller
1618 To compile this driver as a loadable module, choose M here.
1619 The module will be called imgpdc_wdt.
1622 tristate "Lantiq SoC watchdog"
1625 Hardware driver for the Lantiq SoC Watchdog Timer.
1627 config LOONGSON1_WDT
1628 tristate "Loongson1 SoC hardware watchdog"
1629 depends on MACH_LOONGSON32
1630 select WATCHDOG_CORE
1632 Hardware driver for the Loongson1 SoC Watchdog Timer.
1635 tristate "Ralink SoC watchdog"
1636 select WATCHDOG_CORE
1639 Hardware driver for the Ralink SoC Watchdog Timer.
1642 tristate "Mediatek SoC watchdog"
1643 select WATCHDOG_CORE
1644 depends on SOC_MT7620 || SOC_MT7621
1646 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1649 tristate "Microchip PIC32 hardware watchdog"
1650 select WATCHDOG_CORE
1651 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1653 Watchdog driver for the built in watchdog hardware in a PIC32.
1655 Configuration bits must be set appropriately for the watchdog to be
1656 controlled by this driver.
1658 To compile this driver as a loadable module, choose M here.
1659 The module will be called pic32-wdt.
1662 tristate "Microchip PIC32 Deadman Timer"
1663 select WATCHDOG_CORE
1664 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1666 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1667 timer is typically be used in misson critical and safety critical
1668 applications, where any single failure of the software functionality
1669 and sequencing must be detected.
1671 To compile this driver as a loadable module, choose M here.
1672 The module will be called pic32-dmt.
1674 # PARISC Architecture
1676 # POWERPC Architecture
1679 tristate "GE Watchdog Timer"
1682 Watchdog timer found in a number of GE single board computers.
1685 bool "MPC52xx Watchdog Timer"
1686 depends on PPC_MPC52xx || COMPILE_TEST
1688 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1691 tristate "MPC8xxx Platform Watchdog Timer"
1692 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1693 select WATCHDOG_CORE
1695 This driver is for a SoC level watchdog that exists on some
1696 Freescale PowerPC processors. So far this driver supports:
1701 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1704 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1705 depends on MV64X60 || COMPILE_TEST
1708 tristate "PIKA FPGA Watchdog"
1709 depends on WARP || (PPC64 && COMPILE_TEST)
1712 This enables the watchdog in the PIKA FPGA. Currently used on
1716 tristate "PowerPC Book-E Watchdog Timer"
1717 depends on BOOKE || 4xx
1718 select WATCHDOG_CORE
1720 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1721 MPC85xx SOCs and the IBM PowerPC 440.
1723 Please see Documentation/watchdog/watchdog-api.txt for
1726 config BOOKE_WDT_DEFAULT_TIMEOUT
1727 int "PowerPC Book-E Watchdog Timer Default Timeout"
1728 depends on BOOKE_WDT
1729 default 38 if PPC_FSL_BOOK3E
1730 range 0 63 if PPC_FSL_BOOK3E
1731 default 3 if !PPC_FSL_BOOK3E
1732 range 0 3 if !PPC_FSL_BOOK3E
1734 Select the default watchdog timer period to be used by the PowerPC
1735 Book-E watchdog driver. A watchdog "event" occurs when the bit
1736 position represented by this number transitions from zero to one.
1738 For Freescale Book-E processors, this is a number between 0 and 63.
1739 For other Book-E processors, this is a number between 0 and 3.
1741 The value can be overridden by the wdt_period command-line parameter.
1744 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1745 select WATCHDOG_CORE
1746 depends on GPIOLIB || COMPILE_TEST
1748 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1750 The driver can also be built as a module. If so, the module will be
1753 If unsure select N here.
1755 # PPC64 Architecture
1757 config WATCHDOG_RTAS
1758 tristate "RTAS watchdog"
1761 This driver adds watchdog support for the RTAS watchdog.
1763 To compile this driver as a module, choose M here. The module
1764 will be called wdrtas.
1768 config DIAG288_WATCHDOG
1769 tristate "System z diag288 Watchdog"
1771 select WATCHDOG_CORE
1773 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1774 provide a virtual watchdog timer to their guest that cause a
1775 user define Control Program command to be executed after a
1777 LPAR provides a very similar interface. This driver handles
1780 To compile this driver as a module, choose M here. The module
1781 will be called diag288_wdt.
1783 # SUPERH (sh + sh64) Architecture
1786 tristate "SuperH Watchdog"
1787 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1788 select WATCHDOG_CORE
1790 This driver adds watchdog support for the integrated watchdog in the
1791 SuperH processors. If you have one of these processors and wish
1792 to have watchdog support enabled, say Y, otherwise say N.
1794 As a side note, saying Y here will automatically boost HZ to 1000
1795 so that the timer has a chance to clear the overflow counter. On
1796 slower systems (such as the SH-2 and SH-3) this will likely yield
1797 some performance issues. As such, the WDT should be avoided here
1798 unless it is absolutely necessary.
1800 To compile this driver as a module, choose M here: the
1801 module will be called shwdt.
1803 # SPARC Architecture
1805 # SPARC64 Architecture
1807 config WATCHDOG_CP1XXX
1808 tristate "CP1XXX Hardware Watchdog support"
1809 depends on SPARC64 && PCI
1811 This is the driver for the hardware watchdog timers present on
1812 Sun Microsystems CompactPCI models CP1400 and CP1500.
1814 To compile this driver as a module, choose M here: the
1815 module will be called cpwatchdog.
1817 If you do not have a CompactPCI model CP1400 or CP1500, or
1818 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1819 you should say N to this option.
1822 tristate "RIO Hardware Watchdog support"
1823 depends on SPARC64 && PCI
1825 Say Y here to support the hardware watchdog capability on Sun RIO
1826 machines. The watchdog timeout period is normally one minute but
1827 can be changed with a boot-time parameter.
1829 config WATCHDOG_SUN4V
1830 tristate "Sun4v Watchdog support"
1831 select WATCHDOG_CORE
1834 Say Y here to support the hypervisor watchdog capability embedded
1835 in the SPARC sun4v architecture.
1837 To compile this driver as a module, choose M here. The module will
1838 be called sun4v_wdt.
1840 # XTENSA Architecture
1845 tristate "Xen Watchdog support"
1847 select WATCHDOG_CORE
1849 Say Y here to support the hypervisor watchdog capability provided
1850 by Xen 4.0 and newer. The watchdog timeout period is normally one
1851 minute but can be changed with a boot-time parameter.
1854 tristate "UML watchdog"
1855 depends on UML || COMPILE_TEST
1858 # ISA-based Watchdog Cards
1861 comment "ISA-based Watchdog Cards"
1865 tristate "Berkshire Products ISA-PC Watchdog"
1868 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1869 This card simply watches your kernel to make sure it doesn't freeze,
1870 and if it does, it reboots your computer after a certain amount of
1871 time. This driver is like the WDT501 driver but for different
1872 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1873 watchdog cards can be ordered from <http://www.berkprod.com/>.
1875 To compile this driver as a module, choose M here: the
1876 module will be called pcwd.
1878 Most people will say N.
1881 tristate "Mixcom Watchdog"
1884 This is a driver for the Mixcom hardware watchdog cards. This
1885 watchdog simply watches your kernel to make sure it doesn't freeze,
1886 and if it does, it reboots your computer after a certain amount of
1889 To compile this driver as a module, choose M here: the
1890 module will be called mixcomwd.
1892 Most people will say N.
1895 tristate "WDT Watchdog timer"
1898 If you have a WDT500P or WDT501P watchdog board, say Y here,
1899 otherwise N. It is not possible to probe for this board, which means
1900 that you have to inform the kernel about the IO port and IRQ that
1901 is needed (you can do this via the io and irq parameters)
1903 To compile this driver as a module, choose M here: the
1904 module will be called wdt.
1907 # PCI-based Watchdog Cards
1910 comment "PCI-based Watchdog Cards"
1913 config PCIPCWATCHDOG
1914 tristate "Berkshire Products PCI-PC Watchdog"
1917 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1918 This card simply watches your kernel to make sure it doesn't freeze,
1919 and if it does, it reboots your computer after a certain amount of
1920 time. The card can also monitor the internal temperature of the PC.
1921 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1923 To compile this driver as a module, choose M here: the
1924 module will be called pcwd_pci.
1926 Most people will say N.
1929 tristate "PCI-WDT500/501 Watchdog timer"
1932 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1934 If you have a PCI-WDT501 watchdog board then you can enable the
1935 temperature sensor by setting the type parameter to 501.
1937 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1938 can do this via the tachometer parameter. Only do this if you have a
1939 fan tachometer actually set up.
1941 To compile this driver as a module, choose M here: the
1942 module will be called wdt_pci.
1945 # USB-based Watchdog Cards
1948 comment "USB-based Watchdog Cards"
1951 config USBPCWATCHDOG
1952 tristate "Berkshire Products USB-PC Watchdog"
1955 This is the driver for the Berkshire Products USB-PC Watchdog card.
1956 This card simply watches your kernel to make sure it doesn't freeze,
1957 and if it does, it reboots your computer after a certain amount of
1958 time. The card can also monitor the internal temperature of the PC.
1959 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1961 To compile this driver as a module, choose M here: the
1962 module will be called pcwd_usb.
1964 Most people will say N.
1966 comment "Watchdog Pretimeout Governors"
1968 config WATCHDOG_PRETIMEOUT_GOV
1969 bool "Enable watchdog pretimeout governors"
1971 The option allows to select watchdog pretimeout governors.
1973 if WATCHDOG_PRETIMEOUT_GOV
1976 prompt "Default Watchdog Pretimeout Governor"
1977 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1979 This option selects a default watchdog pretimeout governor.
1980 The governor takes its action, if a watchdog is capable
1981 to report a pretimeout event.
1983 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
1985 select WATCHDOG_PRETIMEOUT_GOV_NOOP
1987 Use noop watchdog pretimeout governor by default. If noop
1988 governor is selected by a user, write a short message to
1989 the kernel log buffer and don't do any system changes.
1991 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1993 select WATCHDOG_PRETIMEOUT_GOV_PANIC
1995 Use panic watchdog pretimeout governor by default, if
1996 a watchdog pretimeout event happens, consider that
1997 a watchdog feeder is dead and reboot is unavoidable.
2001 config WATCHDOG_PRETIMEOUT_GOV_NOOP
2002 tristate "Noop watchdog pretimeout governor"
2004 Noop watchdog pretimeout governor, only an informational
2005 message is added to kernel log buffer.
2007 config WATCHDOG_PRETIMEOUT_GOV_PANIC
2008 tristate "Panic watchdog pretimeout governor"
2010 Panic watchdog pretimeout governor, on watchdog pretimeout
2011 event put the kernel into panic.
2013 endif # WATCHDOG_PRETIMEOUT_GOV