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 && COMMON_CLK && 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
599 This is the driver for the Max77620 watchdog timer.
600 Say 'Y' here to enable the watchdog timer support for
601 MAX77620 chips. To compile this driver as a module,
602 choose M here: the module will be called max77620_wdt.
605 tristate "IMX2+ Watchdog"
606 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
610 This is the driver for the hardware watchdog
611 on the Freescale IMX2 and later processors.
612 If you have one of these processors and wish to have
613 watchdog support enabled, say Y, otherwise say N.
615 To compile this driver as a module, choose M here: the
616 module will be called imx2_wdt.
618 config UX500_WATCHDOG
619 tristate "ST-Ericsson Ux500 watchdog"
620 depends on MFD_DB8500_PRCMU
624 Say Y here to include Watchdog timer support for the watchdog
625 existing in the prcmu of ST-Ericsson Ux500 series platforms.
627 To compile this driver as a module, choose M here: the
628 module will be called ux500_wdt.
631 tristate "Retu watchdog"
635 Retu watchdog driver for Nokia Internet Tablets (770, N800,
636 N810). At least on N800 the watchdog cannot be disabled, so
637 this driver is essential and you should enable it.
639 To compile this driver as a module, choose M here: the
640 module will be called retu_wdt.
643 tristate "MOXART watchdog"
644 depends on ARCH_MOXART || COMPILE_TEST
646 Say Y here to include Watchdog timer support for the watchdog
647 existing on the MOXA ART SoC series platforms.
649 To compile this driver as a module, choose M here: the
650 module will be called moxart_wdt.
652 config SIRFSOC_WATCHDOG
653 tristate "SiRFSOC watchdog"
655 depends on ARCH_SIRF || COMPILE_TEST
659 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
660 the watchdog triggers the system will be reset.
662 config ST_LPC_WATCHDOG
663 tristate "STMicroelectronics LPC Watchdog"
664 depends on ARCH_STI || COMPILE_TEST
668 Say Y here to include STMicroelectronics Low Power Controller
669 (LPC) based Watchdog timer support.
671 To compile this driver as a module, choose M here: the
672 module will be called st_lpc_wdt.
674 config TEGRA_WATCHDOG
675 tristate "Tegra watchdog"
676 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
679 Say Y here to include support for the watchdog timer
680 embedded in NVIDIA Tegra SoCs.
682 To compile this driver as a module, choose M here: the
683 module will be called tegra_wdt.
686 tristate "QCOM watchdog"
688 depends on ARCH_QCOM || COMPILE_TEST
691 Say Y here to include Watchdog timer support for the watchdog found
692 on QCOM chipsets. Currently supported targets are the MSM8960,
693 APQ8064, and IPQ8064.
695 To compile this driver as a module, choose M here: the
696 module will be called qcom_wdt.
698 config MESON_GXBB_WATCHDOG
699 tristate "Amlogic Meson GXBB SoCs watchdog support"
700 depends on ARCH_MESON || COMPILE_TEST
703 Say Y here to include support for the watchdog timer
704 in Amlogic Meson GXBB SoCs.
705 To compile this driver as a module, choose M here: the
706 module will be called meson_gxbb_wdt.
708 config MESON_WATCHDOG
709 tristate "Amlogic Meson SoCs watchdog support"
710 depends on ARCH_MESON || COMPILE_TEST
713 Say Y here to include support for the watchdog timer
714 in Amlogic Meson SoCs.
715 To compile this driver as a module, choose M here: the
716 module will be called meson_wdt.
718 config MEDIATEK_WATCHDOG
719 tristate "Mediatek SoCs watchdog support"
720 depends on ARCH_MEDIATEK || COMPILE_TEST
723 Say Y here to include support for the watchdog timer
725 To compile this driver as a module, choose M here: the
726 module will be called mtk_wdt.
728 config DIGICOLOR_WATCHDOG
729 tristate "Conexant Digicolor SoCs watchdog support"
730 depends on ARCH_DIGICOLOR || COMPILE_TEST
733 Say Y here to include support for the watchdog timer
734 in Conexant Digicolor SoCs.
735 To compile this driver as a module, choose M here: the
736 module will be called digicolor_wdt.
738 config LPC18XX_WATCHDOG
739 tristate "LPC18xx/43xx Watchdog"
740 depends on ARCH_LPC18XX || COMPILE_TEST
744 Say Y here if to include support for the watchdog timer
745 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
747 To compile this driver as a module, choose M here: the
748 module will be called lpc18xx_wdt.
750 config ATLAS7_WATCHDOG
751 tristate "CSRatlas7 watchdog"
752 depends on ARCH_ATLAS7 || COMPILE_TEST
754 Say Y here to include Watchdog timer support for the watchdog
755 existing on the CSRatlas7 series platforms.
757 To compile this driver as a module, choose M here: the
758 module will be called atlas7_wdt.
761 tristate "Renesas WDT Watchdog"
762 depends on ARCH_RENESAS || COMPILE_TEST
765 This driver adds watchdog support for the integrated watchdogs in the
766 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
768 config RENESAS_RZAWDT
769 tristate "Renesas RZ/A WDT Watchdog"
770 depends on ARCH_RENESAS || COMPILE_TEST
773 This driver adds watchdog support for the integrated watchdogs in the
774 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
776 config ASPEED_WATCHDOG
777 tristate "Aspeed BMC watchdog support"
778 depends on ARCH_ASPEED || COMPILE_TEST
781 Say Y here to include support for the watchdog timer
784 This driver is required to reboot the SoC.
786 To compile this driver as a module, choose M here: the
787 module will be called aspeed_wdt.
789 config ZX2967_WATCHDOG
790 tristate "ZTE zx2967 SoCs watchdog support"
794 Say Y here to include support for the watchdog timer
796 To compile this driver as a module, choose M here: the
797 module will be called zx2967_wdt.
799 config STM32_WATCHDOG
800 tristate "STM32 Independent WatchDoG (IWDG) support"
801 depends on ARCH_STM32
805 Say Y here to include support for the watchdog timer
808 To compile this driver as a module, choose M here: the
809 module will be called stm32_iwdg.
811 config UNIPHIER_WATCHDOG
812 tristate "UniPhier watchdog support"
813 depends on ARCH_UNIPHIER || COMPILE_TEST
814 depends on OF && MFD_SYSCON
817 Say Y here to include support watchdog timer embedded
818 into the UniPhier system.
820 To compile this driver as a module, choose M here: the
821 module will be called uniphier_wdt.
823 config RTD119X_WATCHDOG
824 bool "Realtek RTD119x/RTD129x watchdog support"
825 depends on ARCH_REALTEK || COMPILE_TEST
830 Say Y here to include support for the watchdog timer in
831 Realtek RTD1295 SoCs.
834 tristate "Spreadtrum watchdog support"
835 depends on ARCH_SPRD || COMPILE_TEST
838 Say Y here to include watchdog timer supported
839 by Spreadtrum system.
841 # X86 (i386 + ia64 + x86_64) Architecture
844 tristate "Acquire SBC Watchdog Timer"
847 This is the driver for the hardware watchdog on Single Board
848 Computers produced by Acquire Inc (and others). This watchdog
849 simply watches your kernel to make sure it doesn't freeze, and if
850 it does, it reboots your computer after a certain amount of time.
852 To compile this driver as a module, choose M here: the
853 module will be called acquirewdt.
855 Most people will say N.
858 tristate "Advantech SBC Watchdog Timer"
861 If you are configuring a Linux kernel for the Advantech single-board
862 computer, say `Y' here to support its built-in watchdog timer
863 feature. More information can be found at
864 <http://www.advantech.com.tw/products/>
867 tristate "ALi M1535 PMU Watchdog Timer"
868 depends on X86 && PCI
870 This is the driver for the hardware watchdog on the ALi M1535 PMU.
872 To compile this driver as a module, choose M here: the
873 module will be called alim1535_wdt.
875 Most people will say N.
878 tristate "ALi M7101 PMU Computer Watchdog"
881 This is the driver for the hardware watchdog on the ALi M7101 PMU
882 as used in the x86 Cobalt servers and also found in some
883 SPARC Netra servers too.
885 To compile this driver as a module, choose M here: the
886 module will be called alim7101_wdt.
888 Most people will say N.
891 tristate "WinSystems EBC-C384 Watchdog Timer"
896 Enables watchdog timer support for the watchdog timer on the
897 WinSystems EBC-C384 motherboard. The timeout may be configured via
898 the timeout module parameter.
901 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
904 This is the driver for the hardware watchdog on the Fintek F71808E,
905 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866
906 Super I/O controllers.
908 You can compile this driver directly into the kernel, or use
909 it as a module. The module will be called f71808e_wdt.
912 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
913 depends on X86 && PCI
916 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
917 (Total Cost of Ownership) timer is a watchdog timer that will reboot
918 the machine after its expiration. The expiration time can be
919 configured with the "heartbeat" parameter.
921 To compile this driver as a module, choose M here: the
922 module will be called sp5100_tco.
925 tristate "AMD Geode CS5535/CS5536 Watchdog"
926 depends on CS5535_MFGPT
928 This driver enables a watchdog capability built into the
929 CS5535/CS5536 companion chips for the AMD Geode GX and LX
930 processors. This watchdog watches your kernel to make sure
931 it doesn't freeze, and if it does, it reboots your computer after
932 a certain amount of time.
934 You can compile this driver directly into the kernel, or use
935 it as a module. The module will be called geodewdt.
938 tristate "AMD Elan SC520 processor Watchdog"
939 depends on MELAN || COMPILE_TEST
941 This is the driver for the hardware watchdog built in to the
942 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
943 This watchdog simply watches your kernel to make sure it doesn't
944 freeze, and if it does, it reboots your computer after a certain
947 You can compile this driver directly into the kernel, or use
948 it as a module. The module will be called sc520_wdt.
950 config SBC_FITPC2_WATCHDOG
951 tristate "Compulab SBC-FITPC2 watchdog"
954 This is the driver for the built-in watchdog timer on the fit-PC2,
955 fit-PC2i, CM-iAM single-board computers made by Compulab.
957 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
958 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
960 Entering BIOS setup temporary disables watchdog operation regardless to current state,
961 so system will not be restarted while user in BIOS setup.
963 Once watchdog was enabled the system will be restarted every
964 "Watchdog Timer Value" period, so to prevent it user can restart or
965 disable the watchdog.
967 To compile this driver as a module, choose M here: the
968 module will be called sbc_fitpc2_wdt.
970 Most people will say N.
973 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
976 Enable support for the watchdog timer on the Eurotech CPU-1220 and
977 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
978 information are at <http://www.eurotech.it/>.
981 tristate "IB700 SBC Watchdog Timer"
984 This is the driver for the hardware watchdog on the IB700 Single
985 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
986 simply watches your kernel to make sure it doesn't freeze, and if
987 it does, it reboots your computer after a certain amount of time.
989 This driver is like the WDT501 driver but for slightly different hardware.
991 To compile this driver as a module, choose M here: the
992 module will be called ib700wdt.
994 Most people will say N.
997 tristate "IBM Automatic Server Restart"
1000 This is the driver for the IBM Automatic Server Restart watchdog
1001 timer built-in into some eServer xSeries machines.
1003 To compile this driver as a module, choose M here: the
1004 module will be called ibmasr.
1007 tristate "ICP Single Board Computer Watchdog Timer"
1010 This is a driver for the hardware watchdog on the ICP Single
1011 Board Computer. This driver is working on (at least) the following
1012 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1014 To compile this driver as a module, choose M here: the
1015 module will be called wafer5823wdt.
1018 tristate "Intel 6300ESB Timer/Watchdog"
1020 select WATCHDOG_CORE
1022 Hardware driver for the watchdog timer built into the Intel
1023 6300ESB controller hub.
1025 To compile this driver as a module, choose M here: the
1026 module will be called i6300esb.
1029 tristate "Intel Atom E6xx Watchdog"
1030 depends on X86 && PCI
1031 select WATCHDOG_CORE
1035 Hardware driver for the watchdog timer built into the Intel
1036 Atom E6XX (TunnelCreek) processor.
1038 To compile this driver as a module, choose M here: the
1039 module will be called ie6xx_wdt.
1041 config INTEL_SCU_WATCHDOG
1042 bool "Intel SCU Watchdog for Mobile Platforms"
1043 depends on X86_INTEL_MID
1045 Hardware driver for the watchdog time built into the Intel SCU
1046 for Intel Mobile Platforms.
1048 To compile this driver as a module, choose M here.
1050 config INTEL_MID_WATCHDOG
1051 tristate "Intel MID Watchdog Timer"
1052 depends on X86_INTEL_MID
1053 select WATCHDOG_CORE
1055 Watchdog timer driver built into the Intel SCU for Intel MID
1058 This driver currently supports only the watchdog evolution
1059 implementation in SCU, available for Merrifield generation.
1061 To compile this driver as a module, choose M here.
1064 tristate "Intel TCO Timer/Watchdog"
1065 depends on (X86 || IA64) && PCI
1066 select WATCHDOG_CORE
1067 depends on I2C || I2C=n
1068 select LPC_ICH if !EXPERT
1069 select I2C_I801 if !EXPERT && I2C
1071 Hardware driver for the intel TCO timer based watchdog devices.
1072 These drivers are included in the Intel 82801 I/O Controller
1073 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1076 The TCO (Total Cost of Ownership) timer is a watchdog timer
1077 that will reboot the machine after its second expiration. The
1078 expiration time can be configured with the "heartbeat" parameter.
1080 On some motherboards the driver may fail to reset the chipset's
1081 NO_REBOOT flag which prevents the watchdog from rebooting the
1082 machine. If this is the case you will get a kernel message like
1083 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1085 To compile this driver as a module, choose M here: the
1086 module will be called iTCO_wdt.
1088 config ITCO_VENDOR_SUPPORT
1089 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1092 Add vendor specific support to the intel TCO timer based watchdog
1093 devices. At this moment we only have additional support for some
1094 SuperMicro Inc. motherboards.
1097 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1100 This is the driver for the built-in watchdog timer on the IT8712F
1101 Super I/0 chipset used on many motherboards.
1103 If the driver does not work, then make sure that the game port in
1104 the BIOS is enabled.
1106 To compile this driver as a module, choose M here: the
1107 module will be called it8712f_wdt.
1110 tristate "IT87 Watchdog Timer"
1112 select WATCHDOG_CORE
1114 This is the driver for the hardware watchdog on the ITE IT8607,
1115 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1116 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1117 IT8783 Super I/O chips.
1119 This watchdog simply watches your kernel to make sure it doesn't
1120 freeze, and if it does, it reboots your computer after a certain
1123 To compile this driver as a module, choose M here: the module will
1127 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1128 select WATCHDOG_CORE
1129 depends on X86 && PCI
1131 A software monitoring watchdog and NMI sourcing driver. This driver
1132 will detect lockups and provide a stack trace. This is a driver that
1133 will only load on an HP ProLiant system with a minimum of iLO2 support.
1134 To compile this driver as a module, choose M here: the module will be
1138 tristate "Kontron COM Watchdog Timer"
1139 depends on MFD_KEMPLD
1140 select WATCHDOG_CORE
1142 Support for the PLD watchdog on some Kontron ETX and COMexpress
1143 (ETXexpress) modules
1145 This driver can also be built as a module. If so, the module will be
1148 config HPWDT_NMI_DECODING
1149 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1150 depends on HP_WATCHDOG
1153 When an NMI occurs this feature will make the necessary BIOS calls to
1154 log the cause of the NMI.
1157 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1160 This is a driver for National Semiconductor PC87307/PC97307 hardware
1161 watchdog cards as found on the SC1200. This watchdog is mainly used
1162 for power management purposes and can be used to power down the device
1163 during inactivity periods (includes interrupt activity monitoring).
1165 To compile this driver as a module, choose M here: the
1166 module will be called sc1200wdt.
1168 Most people will say N.
1171 tristate "National Semiconductor SCx200 Watchdog"
1172 depends on SCx200 && PCI
1174 Enable the built-in watchdog timer support on the National
1175 Semiconductor SCx200 processors.
1177 If compiled as a module, it will be called scx200_wdt.
1180 tristate "NS PC87413 watchdog"
1183 This is the driver for the hardware watchdog on the PC87413 chipset
1184 This watchdog simply watches your kernel to make sure it doesn't
1185 freeze, and if it does, it reboots your computer after a certain
1188 To compile this driver as a module, choose M here: the
1189 module will be called pc87413_wdt.
1191 Most people will say N.
1194 tristate "nVidia TCO Timer/Watchdog"
1195 depends on X86 && PCI
1197 Hardware driver for the TCO timer built into the nVidia Hub family
1198 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1199 watchdog timer that will reboot the machine after its second
1200 expiration. The expiration time can be configured with the
1201 "heartbeat" parameter.
1203 On some motherboards the driver may fail to reset the chipset's
1204 NO_REBOOT flag which prevents the watchdog from rebooting the
1205 machine. If this is the case you will get a kernel message like
1206 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1208 To compile this driver as a module, choose M here: the
1209 module will be called nv_tco.
1212 tristate "RDC R-321x SoC watchdog"
1213 depends on X86_RDC321X || COMPILE_TEST
1216 This is the driver for the built in hardware watchdog
1217 in the RDC R-321x SoC.
1219 To compile this driver as a module, choose M here: the
1220 module will be called rdc321x_wdt.
1223 tristate "SBC-60XX Watchdog Timer"
1226 This driver can be used with the watchdog timer found on some
1227 single board computers, namely the 6010 PII based computer.
1228 It may well work with other cards. It reads port 0x443 to enable
1229 and re-set the watchdog timer, and reads port 0x45 to disable
1230 the watchdog. If you have a card that behave in similar ways,
1231 you can probably make this driver work with your card as well.
1233 You can compile this driver directly into the kernel, or use
1234 it as a module. The module will be called sbc60xxwdt.
1237 tristate "SBC8360 Watchdog Timer"
1241 This is the driver for the hardware watchdog on the SBC8360 Single
1242 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1244 To compile this driver as a module, choose M here: the
1245 module will be called sbc8360.
1247 Most people will say N.
1250 tristate "SBC Nano 7240 Watchdog Timer"
1251 depends on X86_32 && !UML
1253 This is the driver for the hardware watchdog found on the IEI
1254 single board computers EPIC Nano 7240 (and likely others). This
1255 watchdog simply watches your kernel to make sure it doesn't freeze,
1256 and if it does, it reboots your computer after a certain amount of
1259 To compile this driver as a module, choose M here: the
1260 module will be called sbc7240_wdt.
1263 tristate "SMA CPU5 Watchdog"
1267 To compile this driver as a module, choose M here: the
1268 module will be called cpu5wdt.
1270 config SMSC_SCH311X_WDT
1271 tristate "SMSC SCH311X Watchdog Timer"
1274 This is the driver for the hardware watchdog timer on the
1275 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1276 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1279 To compile this driver as a module, choose M here: the
1280 module will be called sch311x_wdt.
1282 config SMSC37B787_WDT
1283 tristate "Winbond SMsC37B787 Watchdog Timer"
1286 This is the driver for the hardware watchdog component on the
1287 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1288 from Vision Systems and maybe others.
1290 This watchdog simply watches your kernel to make sure it doesn't
1291 freeze, and if it does, it reboots your computer after a certain
1294 Usually a userspace daemon will notify the kernel WDT driver that
1295 userspace is still alive, at regular intervals.
1297 To compile this driver as a module, choose M here: the
1298 module will be called smsc37b787_wdt.
1300 Most people will say N.
1303 tristate "VIA Watchdog Timer"
1304 depends on X86 && PCI
1305 select WATCHDOG_CORE
1307 This is the driver for the hardware watchdog timer on VIA
1308 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1310 To compile this driver as a module, choose M here; the module
1311 will be called via_wdt.
1313 Most people will say N.
1316 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1318 select WATCHDOG_CORE
1320 This is the driver for the hardware watchdog on the following
1322 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1335 This watchdog simply watches your kernel to make sure it doesn't
1336 freeze, and if it does, it reboots your computer after a certain
1339 To compile this driver as a module, choose M here: the
1340 module will be called w83627hf_wdt.
1342 Most people will say N.
1345 tristate "W83877F (EMACS) Watchdog Timer"
1348 This is the driver for the hardware watchdog on the W83877F chipset
1349 as used in EMACS PC-104 motherboards (and likely others). This
1350 watchdog simply watches your kernel to make sure it doesn't freeze,
1351 and if it does, it reboots your computer after a certain amount of
1354 To compile this driver as a module, choose M here: the
1355 module will be called w83877f_wdt.
1357 Most people will say N.
1360 tristate "W83977F (PCM-5335) Watchdog Timer"
1363 This is the driver for the hardware watchdog on the W83977F I/O chip
1364 as used in AAEON's PCM-5335 SBC (and likely others). This
1365 watchdog simply watches your kernel to make sure it doesn't freeze,
1366 and if it does, it reboots your computer after a certain amount of
1369 To compile this driver as a module, choose M here: the
1370 module will be called w83977f_wdt.
1373 tristate "ZF MachZ Watchdog"
1376 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1377 N. This is the driver for the watchdog timer built-in on that
1378 processor using ZF-Logic interface. This watchdog simply watches
1379 your kernel to make sure it doesn't freeze, and if it does, it
1380 reboots your computer after a certain amount of time.
1382 To compile this driver as a module, choose M here: the
1383 module will be called machzwd.
1385 config SBC_EPX_C3_WATCHDOG
1386 tristate "Winsystems SBC EPX-C3 watchdog"
1389 This is the driver for the built-in watchdog timer on the EPX-C3
1390 Single-board computer made by Winsystems, Inc.
1392 *Note*: This hardware watchdog is not probeable and thus there
1393 is no way to know if writing to its IO address will corrupt
1394 your system or have any real effect. The only way to be sure
1395 that this driver does what you want is to make sure you
1396 are running it on an EPX-C3 from Winsystems with the watchdog
1397 timer at IO address 0x1ee and 0x1ef. It will write to both those
1398 IO ports. Basically, the assumption is made that if you compile
1399 this driver into your kernel and/or load it as a module, that you
1400 know what you are doing and that you are in fact running on an
1403 To compile this driver as a module, choose M here: the
1404 module will be called sbc_epx_c3.
1406 config INTEL_MEI_WDT
1407 tristate "Intel MEI iAMT Watchdog"
1408 depends on INTEL_MEI && X86
1409 select WATCHDOG_CORE
1411 A device driver for the Intel MEI iAMT watchdog.
1413 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1414 Whenever the OS hangs or crashes, iAMT will send an event
1415 to any subscriber to this event. The watchdog doesn't reset the
1418 To compile this driver as a module, choose M here:
1419 the module will be called mei_wdt.
1422 tristate "NI 903x/913x Watchdog"
1423 depends on X86 && ACPI
1424 select WATCHDOG_CORE
1426 This is the driver for the watchdog timer on the National Instruments
1427 903x/913x real-time controllers.
1429 To compile this driver as a module, choose M here: the module will be
1433 tristate "NIC7018 Watchdog"
1434 depends on X86 && ACPI
1435 select WATCHDOG_CORE
1437 Support for National Instruments NIC7018 Watchdog.
1439 To compile this driver as a module, choose M here: the module will be
1444 config M54xx_WATCHDOG
1445 tristate "MCF54xx watchdog support"
1448 To compile this driver as a module, choose M here: the
1449 module will be called m54xx_wdt.
1451 # MicroBlaze Architecture
1456 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1457 depends on ATH79 || (ARM && COMPILE_TEST)
1459 Hardware driver for the built-in watchdog timer on the Atheros
1460 AR71XX/AR724X/AR913X SoCs.
1463 tristate "Broadcom BCM47xx Watchdog Timer"
1464 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1465 select WATCHDOG_CORE
1467 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1470 tristate "IDT RC32434 SoC Watchdog Timer"
1471 depends on MIKROTIK_RB532
1473 Hardware driver for the IDT RC32434 SoC built-in
1476 To compile this driver as a module, choose M here: the
1477 module will be called rc32434_wdt.
1480 tristate "Indy/I2 Hardware Watchdog"
1481 depends on SGI_HAS_INDYDOG
1483 Hardware driver for the Indy's/I2's watchdog. This is a
1484 watchdog timer that will reboot the machine after a 60 second
1485 timer expired and no process has written to /dev/watchdog during
1489 tristate "Ingenic jz4740 SoC hardware watchdog"
1490 depends on MACH_JZ4740 || MACH_JZ4780
1491 select WATCHDOG_CORE
1493 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1496 tristate "MTX-1 Hardware Watchdog"
1497 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1499 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1500 will reboot the machine after a 100 seconds timer expired.
1503 tristate "PNX833x Hardware Watchdog"
1504 depends on SOC_PNX8335
1507 Hardware driver for the PNX833x's watchdog. This is a
1508 watchdog timer that will reboot the machine after a programmable
1509 timer has expired and no process has written to /dev/watchdog during
1513 tristate "Sibyte SoC hardware watchdog"
1514 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1516 Watchdog driver for the built in watchdog hardware in Sibyte
1517 SoC processors. There are apparently two watchdog timers
1518 on such processors; this driver supports only the first one,
1519 because currently Linux only supports exporting one watchdog
1522 To compile this driver as a loadable module, choose M here.
1523 The module will be called sb_wdog.
1526 tristate "TI AR7 Watchdog Timer"
1527 depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
1529 Hardware driver for the TI AR7 Watchdog Timer.
1532 tristate "Toshiba TXx9 Watchdog Timer"
1533 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1534 select WATCHDOG_CORE
1536 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1539 tristate "Cavium OCTEON SOC family Watchdog Timer"
1540 depends on CAVIUM_OCTEON_SOC
1542 select WATCHDOG_CORE
1543 select EXPORT_UASM if OCTEON_WDT = m
1545 Hardware driver for OCTEON's on chip watchdog timer.
1546 Enables the watchdog for all cores running Linux. It
1547 installs a NMI handler and pokes the watchdog based on an
1548 interrupt. On first expiration of the watchdog, the
1549 interrupt handler pokes it. The second expiration causes an
1550 NMI that prints a message. The third expiration causes a
1553 When userspace has /dev/watchdog open, no poking is done
1554 from the first interrupt, it is then only poked when the
1558 tristate "Broadcom BCM63xx hardware watchdog"
1561 Watchdog driver for the built in watchdog hardware in Broadcom
1564 To compile this driver as a loadable module, choose M here.
1565 The module will be called bcm63xx_wdt.
1568 tristate "Broadcom BCM2835 hardware watchdog"
1569 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1570 select WATCHDOG_CORE
1572 Watchdog driver for the built in watchdog hardware in Broadcom
1575 To compile this driver as a loadable module, choose M here.
1576 The module will be called bcm2835_wdt.
1579 tristate "BCM Kona Watchdog"
1580 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1581 select WATCHDOG_CORE
1583 Support for the watchdog timer on the following Broadcom BCM281xx
1584 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1587 Say 'Y' or 'M' here to enable the driver. The module will be called
1590 config BCM_KONA_WDT_DEBUG
1591 bool "DEBUGFS support for BCM Kona Watchdog"
1592 depends on BCM_KONA_WDT || COMPILE_TEST
1594 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1595 access to the driver's internal data structures as well as watchdog
1596 timer hardware registres.
1598 If in doubt, say 'N'.
1601 tristate "BCM7038 Watchdog"
1602 select WATCHDOG_CORE
1603 depends on HAS_IOMEM
1604 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1606 Watchdog driver for the built-in hardware in Broadcom 7038 and
1607 later SoCs used in set-top boxes. BCM7038 was made public
1608 during the 2004 CES, and since then, many Broadcom chips use this
1609 watchdog block, including some cable modem chips.
1612 tristate "Imagination Technologies PDC Watchdog Timer"
1613 depends on HAS_IOMEM
1614 depends on MIPS || COMPILE_TEST
1615 select WATCHDOG_CORE
1617 Driver for Imagination Technologies PowerDown Controller
1620 To compile this driver as a loadable module, choose M here.
1621 The module will be called imgpdc_wdt.
1624 tristate "Lantiq SoC watchdog"
1627 Hardware driver for the Lantiq SoC Watchdog Timer.
1629 config LOONGSON1_WDT
1630 tristate "Loongson1 SoC hardware watchdog"
1631 depends on MACH_LOONGSON32
1632 select WATCHDOG_CORE
1634 Hardware driver for the Loongson1 SoC Watchdog Timer.
1637 tristate "Ralink SoC watchdog"
1638 select WATCHDOG_CORE
1641 Hardware driver for the Ralink SoC Watchdog Timer.
1644 tristate "Mediatek SoC watchdog"
1645 select WATCHDOG_CORE
1646 depends on SOC_MT7620 || SOC_MT7621
1648 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1651 tristate "Microchip PIC32 hardware watchdog"
1652 select WATCHDOG_CORE
1653 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1655 Watchdog driver for the built in watchdog hardware in a PIC32.
1657 Configuration bits must be set appropriately for the watchdog to be
1658 controlled by this driver.
1660 To compile this driver as a loadable module, choose M here.
1661 The module will be called pic32-wdt.
1664 tristate "Microchip PIC32 Deadman Timer"
1665 select WATCHDOG_CORE
1666 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1668 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1669 timer is typically be used in misson critical and safety critical
1670 applications, where any single failure of the software functionality
1671 and sequencing must be detected.
1673 To compile this driver as a loadable module, choose M here.
1674 The module will be called pic32-dmt.
1676 # PARISC Architecture
1678 # POWERPC Architecture
1681 tristate "GE Watchdog Timer"
1684 Watchdog timer found in a number of GE single board computers.
1687 bool "MPC52xx Watchdog Timer"
1688 depends on PPC_MPC52xx || COMPILE_TEST
1690 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1693 tristate "MPC8xxx Platform Watchdog Timer"
1694 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1695 select WATCHDOG_CORE
1697 This driver is for a SoC level watchdog that exists on some
1698 Freescale PowerPC processors. So far this driver supports:
1703 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1706 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1707 depends on MV64X60 || COMPILE_TEST
1710 tristate "PIKA FPGA Watchdog"
1711 depends on WARP || (PPC64 && COMPILE_TEST)
1714 This enables the watchdog in the PIKA FPGA. Currently used on
1718 tristate "PowerPC Book-E Watchdog Timer"
1719 depends on BOOKE || 4xx
1720 select WATCHDOG_CORE
1722 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1723 MPC85xx SOCs and the IBM PowerPC 440.
1725 Please see Documentation/watchdog/watchdog-api.txt for
1728 config BOOKE_WDT_DEFAULT_TIMEOUT
1729 int "PowerPC Book-E Watchdog Timer Default Timeout"
1730 depends on BOOKE_WDT
1731 default 38 if PPC_FSL_BOOK3E
1732 range 0 63 if PPC_FSL_BOOK3E
1733 default 3 if !PPC_FSL_BOOK3E
1734 range 0 3 if !PPC_FSL_BOOK3E
1736 Select the default watchdog timer period to be used by the PowerPC
1737 Book-E watchdog driver. A watchdog "event" occurs when the bit
1738 position represented by this number transitions from zero to one.
1740 For Freescale Book-E processors, this is a number between 0 and 63.
1741 For other Book-E processors, this is a number between 0 and 3.
1743 The value can be overridden by the wdt_period command-line parameter.
1746 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1747 select WATCHDOG_CORE
1748 depends on GPIOLIB || COMPILE_TEST
1750 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1752 The driver can also be built as a module. If so, the module will be
1755 If unsure select N here.
1757 # PPC64 Architecture
1759 config WATCHDOG_RTAS
1760 tristate "RTAS watchdog"
1763 This driver adds watchdog support for the RTAS watchdog.
1765 To compile this driver as a module, choose M here. The module
1766 will be called wdrtas.
1770 config DIAG288_WATCHDOG
1771 tristate "System z diag288 Watchdog"
1773 select WATCHDOG_CORE
1775 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1776 provide a virtual watchdog timer to their guest that cause a
1777 user define Control Program command to be executed after a
1779 LPAR provides a very similar interface. This driver handles
1782 To compile this driver as a module, choose M here. The module
1783 will be called diag288_wdt.
1785 # SUPERH (sh + sh64) Architecture
1788 tristate "SuperH Watchdog"
1789 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1790 select WATCHDOG_CORE
1792 This driver adds watchdog support for the integrated watchdog in the
1793 SuperH processors. If you have one of these processors and wish
1794 to have watchdog support enabled, say Y, otherwise say N.
1796 As a side note, saying Y here will automatically boost HZ to 1000
1797 so that the timer has a chance to clear the overflow counter. On
1798 slower systems (such as the SH-2 and SH-3) this will likely yield
1799 some performance issues. As such, the WDT should be avoided here
1800 unless it is absolutely necessary.
1802 To compile this driver as a module, choose M here: the
1803 module will be called shwdt.
1805 # SPARC Architecture
1807 # SPARC64 Architecture
1809 config WATCHDOG_CP1XXX
1810 tristate "CP1XXX Hardware Watchdog support"
1811 depends on SPARC64 && PCI
1813 This is the driver for the hardware watchdog timers present on
1814 Sun Microsystems CompactPCI models CP1400 and CP1500.
1816 To compile this driver as a module, choose M here: the
1817 module will be called cpwatchdog.
1819 If you do not have a CompactPCI model CP1400 or CP1500, or
1820 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1821 you should say N to this option.
1824 tristate "RIO Hardware Watchdog support"
1825 depends on SPARC64 && PCI
1827 Say Y here to support the hardware watchdog capability on Sun RIO
1828 machines. The watchdog timeout period is normally one minute but
1829 can be changed with a boot-time parameter.
1831 config WATCHDOG_SUN4V
1832 tristate "Sun4v Watchdog support"
1833 select WATCHDOG_CORE
1836 Say Y here to support the hypervisor watchdog capability embedded
1837 in the SPARC sun4v architecture.
1839 To compile this driver as a module, choose M here. The module will
1840 be called sun4v_wdt.
1842 # XTENSA Architecture
1847 tristate "Xen Watchdog support"
1849 select WATCHDOG_CORE
1851 Say Y here to support the hypervisor watchdog capability provided
1852 by Xen 4.0 and newer. The watchdog timeout period is normally one
1853 minute but can be changed with a boot-time parameter.
1856 tristate "UML watchdog"
1857 depends on UML || COMPILE_TEST
1860 # ISA-based Watchdog Cards
1863 comment "ISA-based Watchdog Cards"
1867 tristate "Berkshire Products ISA-PC Watchdog"
1870 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1871 This card simply watches your kernel to make sure it doesn't freeze,
1872 and if it does, it reboots your computer after a certain amount of
1873 time. This driver is like the WDT501 driver but for different
1874 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1875 watchdog cards can be ordered from <http://www.berkprod.com/>.
1877 To compile this driver as a module, choose M here: the
1878 module will be called pcwd.
1880 Most people will say N.
1883 tristate "Mixcom Watchdog"
1886 This is a driver for the Mixcom hardware watchdog cards. This
1887 watchdog simply watches your kernel to make sure it doesn't freeze,
1888 and if it does, it reboots your computer after a certain amount of
1891 To compile this driver as a module, choose M here: the
1892 module will be called mixcomwd.
1894 Most people will say N.
1897 tristate "WDT Watchdog timer"
1900 If you have a WDT500P or WDT501P watchdog board, say Y here,
1901 otherwise N. It is not possible to probe for this board, which means
1902 that you have to inform the kernel about the IO port and IRQ that
1903 is needed (you can do this via the io and irq parameters)
1905 To compile this driver as a module, choose M here: the
1906 module will be called wdt.
1909 # PCI-based Watchdog Cards
1912 comment "PCI-based Watchdog Cards"
1915 config PCIPCWATCHDOG
1916 tristate "Berkshire Products PCI-PC Watchdog"
1919 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1920 This card simply watches your kernel to make sure it doesn't freeze,
1921 and if it does, it reboots your computer after a certain amount of
1922 time. The card can also monitor the internal temperature of the PC.
1923 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1925 To compile this driver as a module, choose M here: the
1926 module will be called pcwd_pci.
1928 Most people will say N.
1931 tristate "PCI-WDT500/501 Watchdog timer"
1934 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1936 If you have a PCI-WDT501 watchdog board then you can enable the
1937 temperature sensor by setting the type parameter to 501.
1939 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1940 can do this via the tachometer parameter. Only do this if you have a
1941 fan tachometer actually set up.
1943 To compile this driver as a module, choose M here: the
1944 module will be called wdt_pci.
1947 # USB-based Watchdog Cards
1950 comment "USB-based Watchdog Cards"
1953 config USBPCWATCHDOG
1954 tristate "Berkshire Products USB-PC Watchdog"
1957 This is the driver for the Berkshire Products USB-PC Watchdog card.
1958 This card simply watches your kernel to make sure it doesn't freeze,
1959 and if it does, it reboots your computer after a certain amount of
1960 time. The card can also monitor the internal temperature of the PC.
1961 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1963 To compile this driver as a module, choose M here: the
1964 module will be called pcwd_usb.
1966 Most people will say N.
1968 comment "Watchdog Pretimeout Governors"
1970 config WATCHDOG_PRETIMEOUT_GOV
1971 bool "Enable watchdog pretimeout governors"
1972 depends on WATCHDOG_CORE
1974 The option allows to select watchdog pretimeout governors.
1976 if WATCHDOG_PRETIMEOUT_GOV
1979 prompt "Default Watchdog Pretimeout Governor"
1980 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1982 This option selects a default watchdog pretimeout governor.
1983 The governor takes its action, if a watchdog is capable
1984 to report a pretimeout event.
1986 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
1988 select WATCHDOG_PRETIMEOUT_GOV_NOOP
1990 Use noop watchdog pretimeout governor by default. If noop
1991 governor is selected by a user, write a short message to
1992 the kernel log buffer and don't do any system changes.
1994 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1996 select WATCHDOG_PRETIMEOUT_GOV_PANIC
1998 Use panic watchdog pretimeout governor by default, if
1999 a watchdog pretimeout event happens, consider that
2000 a watchdog feeder is dead and reboot is unavoidable.
2004 config WATCHDOG_PRETIMEOUT_GOV_NOOP
2005 tristate "Noop watchdog pretimeout governor"
2007 Noop watchdog pretimeout governor, only an informational
2008 message is added to kernel log buffer.
2010 config WATCHDOG_PRETIMEOUT_GOV_PANIC
2011 tristate "Panic watchdog pretimeout governor"
2013 Panic watchdog pretimeout governor, on watchdog pretimeout
2014 event put the kernel into panic.
2016 endif # WATCHDOG_PRETIMEOUT_GOV