xref: /linux/drivers/watchdog/Kconfig (revision 8c749ce93ee69e789e46b3be98de9e0cbfcf8ed8)
1
2#
3# Watchdog device configuration
4#
5
6menuconfig WATCHDOG
7	bool "Watchdog Timer Support"
8	---help---
9	  If you say Y here (and to one of the following options) and create a
10	  character special file /dev/watchdog with major number 10 and minor
11	  number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
12	  subsequently opening the file and then failing to write to it for
13	  longer than 1 minute will result in rebooting the machine. This
14	  could be useful for a networked machine that needs to come back
15	  on-line as fast as possible after a lock-up. There's both a watchdog
16	  implementation entirely in software (which can sometimes fail to
17	  reboot the machine) and a driver for hardware watchdog boards, which
18	  are more robust and can also keep track of the temperature inside
19	  your computer. For details, read
20	  <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
21
22	  The watchdog is usually used together with the watchdog daemon
23	  which is available from
24	  <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
25	  also monitor NFS connections and can reboot the machine when the process
26	  table is full.
27
28	  If unsure, say N.
29
30if WATCHDOG
31
32config WATCHDOG_CORE
33	bool "WatchDog Timer Driver Core"
34	---help---
35	  Say Y here if you want to use the new watchdog timer driver core.
36	  This driver provides a framework for all watchdog timer drivers
37	  and gives them the /dev/watchdog interface (and later also the
38	  sysfs interface).
39
40config WATCHDOG_NOWAYOUT
41	bool "Disable watchdog shutdown on close"
42	help
43	  The default watchdog behaviour (which you get if you say N here) is
44	  to stop the timer if the process managing it closes the file
45	  /dev/watchdog. It's always remotely possible that this process might
46	  get killed. If you say Y here, the watchdog cannot be stopped once
47	  it has been started.
48
49config WATCHDOG_SYSFS
50	bool "Read different watchdog information through sysfs"
51	default n
52	help
53	  Say Y here if you want to enable watchdog device status read through
54	  sysfs attributes.
55
56#
57# General Watchdog drivers
58#
59
60comment "Watchdog Device Drivers"
61
62# Architecture Independent
63
64config SOFT_WATCHDOG
65	tristate "Software watchdog"
66	select WATCHDOG_CORE
67	help
68	  A software monitoring watchdog. This will fail to reboot your system
69	  from some situations that the hardware watchdog will recover
70	  from. Equally it's a lot cheaper to install.
71
72	  To compile this driver as a module, choose M here: the
73	  module will be called softdog.
74
75config DA9052_WATCHDOG
76        tristate "Dialog DA9052 Watchdog"
77        depends on PMIC_DA9052
78        select WATCHDOG_CORE
79        help
80          Support for the watchdog in the DA9052 PMIC. Watchdog trigger
81          cause system reset.
82
83          Say Y here to include support for the DA9052 watchdog.
84          Alternatively say M to compile the driver as a module,
85          which will be called da9052_wdt.
86
87config DA9055_WATCHDOG
88	tristate "Dialog Semiconductor DA9055 Watchdog"
89	depends on MFD_DA9055
90	select WATCHDOG_CORE
91	help
92	  If you say yes here you get support for watchdog on the Dialog
93	  Semiconductor DA9055 PMIC.
94
95	  This driver can also be built as a module.  If so, the module
96	  will be called da9055_wdt.
97
98config DA9063_WATCHDOG
99	tristate "Dialog DA9063 Watchdog"
100	depends on MFD_DA9063
101	select WATCHDOG_CORE
102	help
103	  Support for the watchdog in the DA9063 PMIC.
104
105	  This driver can be built as a module. The module name is da9063_wdt.
106
107config DA9062_WATCHDOG
108	tristate "Dialog DA9062 Watchdog"
109	depends on MFD_DA9062
110	select WATCHDOG_CORE
111	help
112	  Support for the watchdog in the DA9062 PMIC.
113
114	  This driver can be built as a module. The module name is da9062_wdt.
115
116config GPIO_WATCHDOG
117	tristate "Watchdog device controlled through GPIO-line"
118	depends on OF_GPIO
119	select WATCHDOG_CORE
120	help
121	  If you say yes here you get support for watchdog device
122	  controlled through GPIO-line.
123
124config GPIO_WATCHDOG_ARCH_INITCALL
125	bool "Register the watchdog as early as possible"
126	depends on GPIO_WATCHDOG=y
127	help
128	  In some situations, the default initcall level (module_init)
129	  in not early enough in the boot process to avoid the watchdog
130	  to be triggered.
131	  If you say yes here, the initcall level would be raised to
132	  arch_initcall.
133	  If in doubt, say N.
134
135config MENF21BMC_WATCHDOG
136	tristate "MEN 14F021P00 BMC Watchdog"
137	depends on MFD_MENF21BMC
138	select WATCHDOG_CORE
139	help
140	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
141
142	  This driver can also be built as a module. If so the module
143	  will be called menf21bmc_wdt.
144
145config TANGOX_WATCHDOG
146	tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
147	select WATCHDOG_CORE
148	depends on ARCH_TANGOX || COMPILE_TEST
149	help
150	  Support for the watchdog in Sigma Designs SMP86xx (tango3)
151	  and SMP87xx (tango4) family chips.
152
153	  This driver can be built as a module. The module name is tangox_wdt.
154
155config WM831X_WATCHDOG
156	tristate "WM831x watchdog"
157	depends on MFD_WM831X
158	select WATCHDOG_CORE
159	help
160	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
161	  the watchdog triggers the system will be reset.
162
163config WM8350_WATCHDOG
164	tristate "WM8350 watchdog"
165	depends on MFD_WM8350
166	select WATCHDOG_CORE
167	help
168	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
169	  the watchdog triggers the system will be reset.
170
171config XILINX_WATCHDOG
172	tristate "Xilinx Watchdog timer"
173	depends on HAS_IOMEM
174	select WATCHDOG_CORE
175	help
176	  Watchdog driver for the xps_timebase_wdt ip core.
177
178	  To compile this driver as a module, choose M here: the
179	  module will be called of_xilinx_wdt.
180
181config ZIIRAVE_WATCHDOG
182	tristate "Zodiac RAVE Watchdog Timer"
183	depends on I2C
184	select WATCHDOG_CORE
185	help
186	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
187	  Processor.
188
189	  To compile this driver as a module, choose M here: the
190	  module will be called ziirave_wdt.
191
192# ALPHA Architecture
193
194# ARM Architecture
195
196config ARM_SP805_WATCHDOG
197	tristate "ARM SP805 Watchdog"
198	depends on (ARM || ARM64) && ARM_AMBA
199	select WATCHDOG_CORE
200	help
201	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
202	  the timeout is reached.
203
204config ASM9260_WATCHDOG
205	tristate "Alphascale ASM9260 watchdog"
206	depends on MACH_ASM9260
207	depends on OF
208	select WATCHDOG_CORE
209	select RESET_CONTROLLER
210	help
211	  Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
212	  system when the timeout is reached.
213
214config AT91RM9200_WATCHDOG
215	tristate "AT91RM9200 watchdog"
216	depends on SOC_AT91RM9200 && MFD_SYSCON
217	help
218	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
219	  system when the timeout is reached.
220
221config AT91SAM9X_WATCHDOG
222	tristate "AT91SAM9X / AT91CAP9 watchdog"
223	depends on ARCH_AT91
224	select WATCHDOG_CORE
225	help
226	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
227	  reboot your system when the timeout is reached.
228
229config SAMA5D4_WATCHDOG
230	tristate "Atmel SAMA5D4 Watchdog Timer"
231	depends on ARCH_AT91
232	select WATCHDOG_CORE
233	help
234	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
235	  Its Watchdog Timer Mode Register can be written more than once.
236	  This will reboot your system when the timeout is reached.
237
238config CADENCE_WATCHDOG
239	tristate "Cadence Watchdog Timer"
240	depends on HAS_IOMEM
241	select WATCHDOG_CORE
242	help
243	  Say Y here if you want to include support for the watchdog
244	  timer in the Xilinx Zynq.
245
246config 21285_WATCHDOG
247	tristate "DC21285 watchdog"
248	depends on FOOTBRIDGE
249	help
250	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
251	  here if you wish to use this. Alternatively say M to compile the
252	  driver as a module, which will be called wdt285.
253
254	  This driver does not work on all machines. In particular, early CATS
255	  boards have hardware problems that will cause the machine to simply
256	  lock up if the watchdog fires.
257
258	  "If in doubt, leave it out" - say N.
259
260config 977_WATCHDOG
261	tristate "NetWinder WB83C977 watchdog"
262	depends on FOOTBRIDGE && ARCH_NETWINDER
263	help
264	  Say Y here to include support for the WB977 watchdog included in
265	  NetWinder machines. Alternatively say M to compile the driver as
266	  a module, which will be called wdt977.
267
268	  Not sure? It's safe to say N.
269
270config IXP4XX_WATCHDOG
271	tristate "IXP4xx Watchdog"
272	depends on ARCH_IXP4XX
273	help
274	  Say Y here if to include support for the watchdog timer
275	  in the Intel IXP4xx network processors. This driver can
276	  be built as a module by choosing M. The module will
277	  be called ixp4xx_wdt.
278
279	  Note: The internal IXP4xx watchdog does a soft CPU reset
280	  which doesn't reset any peripherals. There are circumstances
281	  where the watchdog will fail to reset the board correctly
282	  (e.g., if the boot ROM is in an unreadable state).
283
284	  Say N if you are unsure.
285
286config KS8695_WATCHDOG
287	tristate "KS8695 watchdog"
288	depends on ARCH_KS8695
289	help
290	  Watchdog timer embedded into KS8695 processor. This will reboot your
291	  system when the timeout is reached.
292
293config HAVE_S3C2410_WATCHDOG
294	bool
295	help
296	  This will include watchdog timer support for Samsung SoCs. If
297	  you want to include watchdog support for any machine, kindly
298	  select this in the respective mach-XXXX/Kconfig file.
299
300config S3C2410_WATCHDOG
301	tristate "S3C2410 Watchdog"
302	depends on HAVE_S3C2410_WATCHDOG
303	select WATCHDOG_CORE
304	select MFD_SYSCON if ARCH_EXYNOS5
305	help
306	  Watchdog timer block in the Samsung SoCs. This will reboot
307	  the system when the timer expires with the watchdog enabled.
308
309	  The driver is limited by the speed of the system's PCLK
310	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
311	  then watchdog intervals of over approximately 20seconds are
312	  unavailable.
313
314	  The driver can be built as a module by choosing M, and will
315	  be called s3c2410_wdt
316
317config SA1100_WATCHDOG
318	tristate "SA1100/PXA2xx watchdog"
319	depends on ARCH_SA1100 || ARCH_PXA
320	help
321	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
322	  reboot your system when timeout is reached.
323
324	  NOTE: once enabled, this timer cannot be disabled.
325
326	  To compile this driver as a module, choose M here: the
327	  module will be called sa1100_wdt.
328
329config DW_WATCHDOG
330	tristate "Synopsys DesignWare watchdog"
331	depends on HAS_IOMEM
332	help
333	  Say Y here if to include support for the Synopsys DesignWare
334	  watchdog timer found in many chips.
335	  To compile this driver as a module, choose M here: the
336	  module will be called dw_wdt.
337
338config EP93XX_WATCHDOG
339	tristate "EP93xx Watchdog"
340	depends on ARCH_EP93XX
341	select WATCHDOG_CORE
342	help
343	  Say Y here if to include support for the watchdog timer
344	  embedded in the Cirrus Logic EP93xx family of devices.
345
346	  To compile this driver as a module, choose M here: the
347	  module will be called ep93xx_wdt.
348
349config OMAP_WATCHDOG
350	tristate "OMAP Watchdog"
351	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
352	select WATCHDOG_CORE
353	help
354	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
355	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
356
357config PNX4008_WATCHDOG
358	tristate "LPC32XX Watchdog"
359	depends on ARCH_LPC32XX
360	select WATCHDOG_CORE
361	help
362	  Say Y here if to include support for the watchdog timer
363	  in the LPC32XX processor.
364	  This driver can be built as a module by choosing M. The module
365	  will be called pnx4008_wdt.
366
367	  Say N if you are unsure.
368
369config IOP_WATCHDOG
370	tristate "IOP Watchdog"
371	depends on ARCH_IOP13XX
372	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
373	help
374	  Say Y here if to include support for the watchdog timer
375	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
376	  be built as a module by choosing M. The module will
377	  be called iop_wdt.
378
379	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
380	  affect both cores and the peripherals of the IOP.  The ATU-X
381	  and/or ATUe configuration registers will remain intact, but if
382	  operating as an Root Complex and/or Central Resource, the PCI-X
383	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
384
385config DAVINCI_WATCHDOG
386	tristate "DaVinci watchdog"
387	depends on ARCH_DAVINCI || ARCH_KEYSTONE
388	select WATCHDOG_CORE
389	help
390	  Say Y here if to include support for the watchdog timer
391	  in the DaVinci DM644x/DM646x or Keystone processors.
392	  To compile this driver as a module, choose M here: the
393	  module will be called davinci_wdt.
394
395	  NOTE: once enabled, this timer cannot be disabled.
396	  Say N if you are unsure.
397
398config ORION_WATCHDOG
399	tristate "Orion watchdog"
400	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
401	select WATCHDOG_CORE
402	help
403	  Say Y here if to include support for the watchdog timer
404	  in the Marvell Orion5x and Kirkwood ARM SoCs.
405	  To compile this driver as a module, choose M here: the
406	  module will be called orion_wdt.
407
408config RN5T618_WATCHDOG
409	tristate "Ricoh RN5T618 watchdog"
410	depends on MFD_RN5T618
411	select WATCHDOG_CORE
412	help
413	  If you say yes here you get support for watchdog on the Ricoh
414	  RN5T618 PMIC.
415
416	  This driver can also be built as a module.  If so, the module
417	  will be called rn5t618_wdt.
418
419config SUNXI_WATCHDOG
420	tristate "Allwinner SoCs watchdog support"
421	depends on ARCH_SUNXI
422	select WATCHDOG_CORE
423	help
424	  Say Y here to include support for the watchdog timer
425	  in Allwinner SoCs.
426	  To compile this driver as a module, choose M here: the
427	  module will be called sunxi_wdt.
428
429config COH901327_WATCHDOG
430	bool "ST-Ericsson COH 901 327 watchdog"
431	depends on ARCH_U300
432	default y if MACH_U300
433	select WATCHDOG_CORE
434	help
435	  Say Y here to include Watchdog timer support for the
436	  watchdog embedded into the ST-Ericsson U300 series platforms.
437	  This watchdog is used to reset the system and thus cannot be
438	  compiled as a module.
439
440config TWL4030_WATCHDOG
441	tristate "TWL4030 Watchdog"
442	depends on TWL4030_CORE
443	select WATCHDOG_CORE
444	help
445	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
446	  watchdog timer support for TWL4030 chips.
447
448config STMP3XXX_RTC_WATCHDOG
449	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
450	depends on RTC_DRV_STMP
451	select WATCHDOG_CORE
452	help
453	  Say Y here to include support for the watchdog timer inside
454	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
455	  To compile this driver as a module, choose M here: the
456	  module will be called stmp3xxx_rtc_wdt.
457
458config NUC900_WATCHDOG
459	tristate "Nuvoton NUC900 watchdog"
460	depends on ARCH_W90X900
461	help
462	  Say Y here if to include support for the watchdog timer
463	  for the Nuvoton NUC900 series SoCs.
464	  To compile this driver as a module, choose M here: the
465	  module will be called nuc900_wdt.
466
467config TS4800_WATCHDOG
468	tristate "TS-4800 Watchdog"
469	depends on HAS_IOMEM && OF
470	select WATCHDOG_CORE
471	select MFD_SYSCON
472	help
473	  Technologic Systems TS-4800 has watchdog timer implemented in
474	  an external FPGA. Say Y here if you want to support for the
475	  watchdog timer on TS-4800 board.
476
477config TS72XX_WATCHDOG
478	tristate "TS-72XX SBC Watchdog"
479	depends on MACH_TS72XX
480	help
481	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
482	  watchdog timer implemented in a external CPLD chip. Say Y here
483	  if you want to support for the watchdog timer on TS-72XX boards.
484
485	  To compile this driver as a module, choose M here: the
486	  module will be called ts72xx_wdt.
487
488config MAX63XX_WATCHDOG
489	tristate "Max63xx watchdog"
490	depends on HAS_IOMEM
491	select WATCHDOG_CORE
492	help
493	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
494
495config IMX2_WDT
496	tristate "IMX2+ Watchdog"
497	depends on ARCH_MXC || ARCH_LAYERSCAPE
498	select REGMAP_MMIO
499	select WATCHDOG_CORE
500	help
501	  This is the driver for the hardware watchdog
502	  on the Freescale IMX2 and later processors.
503	  If you have one of these processors and wish to have
504	  watchdog support enabled, say Y, otherwise say N.
505
506	  To compile this driver as a module, choose M here: the
507	  module will be called imx2_wdt.
508
509config UX500_WATCHDOG
510	tristate "ST-Ericsson Ux500 watchdog"
511	depends on MFD_DB8500_PRCMU
512	select WATCHDOG_CORE
513	default y
514	help
515	  Say Y here to include Watchdog timer support for the watchdog
516	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
517
518	  To compile this driver as a module, choose M here: the
519	  module will be called ux500_wdt.
520
521config RETU_WATCHDOG
522	tristate "Retu watchdog"
523	depends on MFD_RETU
524	select WATCHDOG_CORE
525	help
526	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
527	  N810). At least on N800 the watchdog cannot be disabled, so
528	  this driver is essential and you should enable it.
529
530	  To compile this driver as a module, choose M here: the
531	  module will be called retu_wdt.
532
533config MOXART_WDT
534	tristate "MOXART watchdog"
535	depends on ARCH_MOXART
536	help
537	  Say Y here to include Watchdog timer support for the watchdog
538	  existing on the MOXA ART SoC series platforms.
539
540	  To compile this driver as a module, choose M here: the
541	  module will be called moxart_wdt.
542
543config SIRFSOC_WATCHDOG
544	tristate "SiRFSOC watchdog"
545	depends on ARCH_SIRF
546	select WATCHDOG_CORE
547	default y
548	help
549	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
550	  the watchdog triggers the system will be reset.
551
552config ST_LPC_WATCHDOG
553	tristate "STMicroelectronics LPC Watchdog"
554	depends on ARCH_STI
555	depends on OF
556	select WATCHDOG_CORE
557	help
558	  Say Y here to include STMicroelectronics Low Power Controller
559	  (LPC) based Watchdog timer support.
560
561	  To compile this driver as a module, choose M here: the
562	  module will be called st_lpc_wdt.
563
564config TEGRA_WATCHDOG
565	tristate "Tegra watchdog"
566	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
567	select WATCHDOG_CORE
568	help
569	  Say Y here to include support for the watchdog timer
570	  embedded in NVIDIA Tegra SoCs.
571
572	  To compile this driver as a module, choose M here: the
573	  module will be called tegra_wdt.
574
575config QCOM_WDT
576	tristate "QCOM watchdog"
577	depends on HAS_IOMEM
578	depends on ARCH_QCOM
579	select WATCHDOG_CORE
580	help
581	  Say Y here to include Watchdog timer support for the watchdog found
582	  on QCOM chipsets.  Currently supported targets are the MSM8960,
583	  APQ8064, and IPQ8064.
584
585	  To compile this driver as a module, choose M here: the
586	  module will be called qcom_wdt.
587
588config MESON_WATCHDOG
589	tristate "Amlogic Meson SoCs watchdog support"
590	depends on ARCH_MESON
591	select WATCHDOG_CORE
592	help
593	  Say Y here to include support for the watchdog timer
594	  in Amlogic Meson SoCs.
595	  To compile this driver as a module, choose M here: the
596	  module will be called meson_wdt.
597
598config MEDIATEK_WATCHDOG
599	tristate "Mediatek SoCs watchdog support"
600	depends on ARCH_MEDIATEK
601	select WATCHDOG_CORE
602	help
603	  Say Y here to include support for the watchdog timer
604	  in Mediatek SoCs.
605	  To compile this driver as a module, choose M here: the
606	  module will be called mtk_wdt.
607
608config DIGICOLOR_WATCHDOG
609	tristate "Conexant Digicolor SoCs watchdog support"
610	depends on ARCH_DIGICOLOR
611	select WATCHDOG_CORE
612	help
613	  Say Y here to include support for the watchdog timer
614	  in Conexant Digicolor SoCs.
615	  To compile this driver as a module, choose M here: the
616	  module will be called digicolor_wdt.
617
618config LPC18XX_WATCHDOG
619	tristate "LPC18xx/43xx Watchdog"
620	depends on ARCH_LPC18XX || COMPILE_TEST
621	select WATCHDOG_CORE
622	help
623	  Say Y here if to include support for the watchdog timer
624	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
625	  processors.
626	  To compile this driver as a module, choose M here: the
627	  module will be called lpc18xx_wdt.
628
629config ATLAS7_WATCHDOG
630	tristate "CSRatlas7 watchdog"
631	depends on ARCH_ATLAS7
632	help
633	  Say Y here to include Watchdog timer support for the watchdog
634	  existing on the CSRatlas7 series platforms.
635
636	  To compile this driver as a module, choose M here: the
637	  module will be called atlas7_wdt.
638
639# AVR32 Architecture
640
641config AT32AP700X_WDT
642	tristate "AT32AP700x watchdog"
643	depends on CPU_AT32AP700X
644	help
645	  Watchdog timer embedded into AT32AP700x devices. This will reboot
646	  your system when the timeout is reached.
647
648# BLACKFIN Architecture
649
650config BFIN_WDT
651	tristate "Blackfin On-Chip Watchdog Timer"
652	depends on BLACKFIN
653	---help---
654	  If you say yes here you will get support for the Blackfin On-Chip
655	  Watchdog Timer. If you have one of these processors and wish to
656	  have watchdog support enabled, say Y, otherwise say N.
657
658	  To compile this driver as a module, choose M here: the
659	  module will be called bfin_wdt.
660
661# CRIS Architecture
662
663# FRV Architecture
664
665# X86 (i386 + ia64 + x86_64) Architecture
666
667config ACQUIRE_WDT
668	tristate "Acquire SBC Watchdog Timer"
669	depends on X86
670	---help---
671	  This is the driver for the hardware watchdog on Single Board
672	  Computers produced by Acquire Inc (and others). This watchdog
673	  simply watches your kernel to make sure it doesn't freeze, and if
674	  it does, it reboots your computer after a certain amount of time.
675
676	  To compile this driver as a module, choose M here: the
677	  module will be called acquirewdt.
678
679	  Most people will say N.
680
681config ADVANTECH_WDT
682	tristate "Advantech SBC Watchdog Timer"
683	depends on X86
684	help
685	  If you are configuring a Linux kernel for the Advantech single-board
686	  computer, say `Y' here to support its built-in watchdog timer
687	  feature. More information can be found at
688	  <http://www.advantech.com.tw/products/>
689
690config ALIM1535_WDT
691	tristate "ALi M1535 PMU Watchdog Timer"
692	depends on X86 && PCI
693	---help---
694	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
695
696	  To compile this driver as a module, choose M here: the
697	  module will be called alim1535_wdt.
698
699	  Most people will say N.
700
701config ALIM7101_WDT
702	tristate "ALi M7101 PMU Computer Watchdog"
703	depends on PCI
704	help
705	  This is the driver for the hardware watchdog on the ALi M7101 PMU
706	  as used in the x86 Cobalt servers and also found in some
707	  SPARC Netra servers too.
708
709	  To compile this driver as a module, choose M here: the
710	  module will be called alim7101_wdt.
711
712	  Most people will say N.
713
714config F71808E_WDT
715	tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
716	depends on X86
717	help
718	  This is the driver for the hardware watchdog on the Fintek
719	  F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
720
721	  You can compile this driver directly into the kernel, or use
722	  it as a module.  The module will be called f71808e_wdt.
723
724config SP5100_TCO
725	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
726	depends on X86 && PCI
727	---help---
728	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
729	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
730	  the machine after its expiration. The expiration time can be
731	  configured with the "heartbeat" parameter.
732
733	  To compile this driver as a module, choose M here: the
734	  module will be called sp5100_tco.
735
736config GEODE_WDT
737	tristate "AMD Geode CS5535/CS5536 Watchdog"
738	depends on CS5535_MFGPT
739	help
740	  This driver enables a watchdog capability built into the
741	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
742	  processors.  This watchdog watches your kernel to make sure
743	  it doesn't freeze, and if it does, it reboots your computer after
744	  a certain amount of time.
745
746	  You can compile this driver directly into the kernel, or use
747	  it as a module.  The module will be called geodewdt.
748
749config SC520_WDT
750	tristate "AMD Elan SC520 processor Watchdog"
751	depends on MELAN
752	help
753	  This is the driver for the hardware watchdog built in to the
754	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
755	  This watchdog simply watches your kernel to make sure it doesn't
756	  freeze, and if it does, it reboots your computer after a certain
757	  amount of time.
758
759	  You can compile this driver directly into the kernel, or use
760	  it as a module.  The module will be called sc520_wdt.
761
762config SBC_FITPC2_WATCHDOG
763	tristate "Compulab SBC-FITPC2 watchdog"
764	depends on X86
765	---help---
766	  This is the driver for the built-in watchdog timer on the fit-PC2,
767	  fit-PC2i, CM-iAM single-board computers made by Compulab.
768
769	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
770	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
771
772	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
773	  so system will not be restarted while user in BIOS setup.
774
775	  Once watchdog was enabled the system will be restarted every
776	  "Watchdog Timer Value" period, so to prevent it user can restart or
777	  disable the watchdog.
778
779	  To compile this driver as a module, choose M here: the
780	  module will be called sbc_fitpc2_wdt.
781
782	  Most people will say N.
783
784config EUROTECH_WDT
785	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
786	depends on X86
787	help
788	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
789	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
790	  information are at <http://www.eurotech.it/>.
791
792config IB700_WDT
793	tristate "IB700 SBC Watchdog Timer"
794	depends on X86
795	---help---
796	  This is the driver for the hardware watchdog on the IB700 Single
797	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
798	  simply watches your kernel to make sure it doesn't freeze, and if
799	  it does, it reboots your computer after a certain amount of time.
800
801	  This driver is like the WDT501 driver but for slightly different hardware.
802
803	  To compile this driver as a module, choose M here: the
804	  module will be called ib700wdt.
805
806	  Most people will say N.
807
808config IBMASR
809	tristate "IBM Automatic Server Restart"
810	depends on X86
811	help
812	  This is the driver for the IBM Automatic Server Restart watchdog
813	  timer built-in into some eServer xSeries machines.
814
815	  To compile this driver as a module, choose M here: the
816	  module will be called ibmasr.
817
818config WAFER_WDT
819	tristate "ICP Single Board Computer Watchdog Timer"
820	depends on X86
821	help
822	  This is a driver for the hardware watchdog on the ICP Single
823	  Board Computer. This driver is working on (at least) the following
824	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
825
826	  To compile this driver as a module, choose M here: the
827	  module will be called wafer5823wdt.
828
829config I6300ESB_WDT
830	tristate "Intel 6300ESB Timer/Watchdog"
831	depends on PCI
832	---help---
833	  Hardware driver for the watchdog timer built into the Intel
834	  6300ESB controller hub.
835
836	  To compile this driver as a module, choose M here: the
837	  module will be called i6300esb.
838
839config IE6XX_WDT
840	tristate "Intel Atom E6xx Watchdog"
841	depends on X86 && PCI
842	select WATCHDOG_CORE
843	select MFD_CORE
844	select LPC_SCH
845	---help---
846	  Hardware driver for the watchdog timer built into the Intel
847	  Atom E6XX (TunnelCreek) processor.
848
849	  To compile this driver as a module, choose M here: the
850	  module will be called ie6xx_wdt.
851
852config INTEL_SCU_WATCHDOG
853	bool "Intel SCU Watchdog for Mobile Platforms"
854	depends on X86_INTEL_MID
855	---help---
856	  Hardware driver for the watchdog time built into the Intel SCU
857	  for Intel Mobile Platforms.
858
859	  To compile this driver as a module, choose M here.
860
861config INTEL_MID_WATCHDOG
862	tristate "Intel MID Watchdog Timer"
863	depends on X86_INTEL_MID
864	select WATCHDOG_CORE
865	---help---
866	  Watchdog timer driver built into the Intel SCU for Intel MID
867	  Platforms.
868
869	  This driver currently supports only the watchdog evolution
870	  implementation in SCU, available for Merrifield generation.
871
872	  To compile this driver as a module, choose M here.
873
874config ITCO_WDT
875	tristate "Intel TCO Timer/Watchdog"
876	depends on (X86 || IA64) && PCI
877	select WATCHDOG_CORE
878	depends on I2C || I2C=n
879	select LPC_ICH if !EXPERT
880	select I2C_I801 if !EXPERT && I2C
881	---help---
882	  Hardware driver for the intel TCO timer based watchdog devices.
883	  These drivers are included in the Intel 82801 I/O Controller
884	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
885	  controller hub.
886
887	  The TCO (Total Cost of Ownership) timer is a watchdog timer
888	  that will reboot the machine after its second expiration. The
889	  expiration time can be configured with the "heartbeat" parameter.
890
891	  On some motherboards the driver may fail to reset the chipset's
892	  NO_REBOOT flag which prevents the watchdog from rebooting the
893	  machine. If this is the case you will get a kernel message like
894	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
895
896	  To compile this driver as a module, choose M here: the
897	  module will be called iTCO_wdt.
898
899config ITCO_VENDOR_SUPPORT
900	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
901	depends on ITCO_WDT
902	---help---
903	  Add vendor specific support to the intel TCO timer based watchdog
904	  devices. At this moment we only have additional support for some
905	  SuperMicro Inc. motherboards.
906
907config IT8712F_WDT
908	tristate "IT8712F (Smart Guardian) Watchdog Timer"
909	depends on X86
910	---help---
911	  This is the driver for the built-in watchdog timer on the IT8712F
912	  Super I/0 chipset used on many motherboards.
913
914	  If the driver does not work, then make sure that the game port in
915	  the BIOS is enabled.
916
917	  To compile this driver as a module, choose M here: the
918	  module will be called it8712f_wdt.
919
920config IT87_WDT
921	tristate "IT87 Watchdog Timer"
922	depends on X86
923	---help---
924	  This is the driver for the hardware watchdog on the ITE IT8702,
925	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
926	  Super I/O chips.
927
928	  If the driver does not work, then make sure that the game port in
929	  the BIOS is enabled.
930
931	  This watchdog simply watches your kernel to make sure it doesn't
932	  freeze, and if it does, it reboots your computer after a certain
933	  amount of time.
934
935	  To compile this driver as a module, choose M here: the module will
936	  be called it87_wdt.
937
938config HP_WATCHDOG
939	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
940	depends on X86 && PCI
941	help
942	  A software monitoring watchdog and NMI sourcing driver. This driver
943	  will detect lockups and provide a stack trace. This is a driver that
944	  will only load on an HP ProLiant system with a minimum of iLO2 support.
945	  To compile this driver as a module, choose M here: the module will be
946	  called hpwdt.
947
948config KEMPLD_WDT
949	tristate "Kontron COM Watchdog Timer"
950	depends on MFD_KEMPLD
951	select WATCHDOG_CORE
952	help
953	  Support for the PLD watchdog on some Kontron ETX and COMexpress
954	  (ETXexpress) modules
955
956	  This driver can also be built as a module. If so, the module will be
957	  called kempld_wdt.
958
959config HPWDT_NMI_DECODING
960	bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
961	depends on HP_WATCHDOG
962	default y
963	help
964	  When an NMI occurs this feature will make the necessary BIOS calls to
965	  log the cause of the NMI.
966
967config SC1200_WDT
968	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
969	depends on X86
970	help
971	  This is a driver for National Semiconductor PC87307/PC97307 hardware
972	  watchdog cards as found on the SC1200. This watchdog is mainly used
973	  for power management purposes and can be used to power down the device
974	  during inactivity periods (includes interrupt activity monitoring).
975
976	  To compile this driver as a module, choose M here: the
977	  module will be called sc1200wdt.
978
979	  Most people will say N.
980
981config SCx200_WDT
982	tristate "National Semiconductor SCx200 Watchdog"
983	depends on SCx200 && PCI
984	help
985	  Enable the built-in watchdog timer support on the National
986	  Semiconductor SCx200 processors.
987
988	  If compiled as a module, it will be called scx200_wdt.
989
990config PC87413_WDT
991	tristate "NS PC87413 watchdog"
992	depends on X86
993	---help---
994	  This is the driver for the hardware watchdog on the PC87413 chipset
995	  This watchdog simply watches your kernel to make sure it doesn't
996	  freeze, and if it does, it reboots your computer after a certain
997	  amount of time.
998
999	  To compile this driver as a module, choose M here: the
1000	  module will be called pc87413_wdt.
1001
1002	  Most people will say N.
1003
1004config NV_TCO
1005	tristate "nVidia TCO Timer/Watchdog"
1006	depends on X86 && PCI
1007	---help---
1008	  Hardware driver for the TCO timer built into the nVidia Hub family
1009	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1010	  watchdog timer that will reboot the machine after its second
1011	  expiration. The expiration time can be configured with the
1012	  "heartbeat" parameter.
1013
1014	  On some motherboards the driver may fail to reset the chipset's
1015	  NO_REBOOT flag which prevents the watchdog from rebooting the
1016	  machine. If this is the case you will get a kernel message like
1017	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1018
1019	  To compile this driver as a module, choose M here: the
1020	  module will be called nv_tco.
1021
1022config RDC321X_WDT
1023	tristate "RDC R-321x SoC watchdog"
1024	depends on X86_RDC321X
1025	help
1026	  This is the driver for the built in hardware watchdog
1027	  in the RDC R-321x SoC.
1028
1029	  To compile this driver as a module, choose M here: the
1030	  module will be called rdc321x_wdt.
1031
1032config 60XX_WDT
1033	tristate "SBC-60XX Watchdog Timer"
1034	depends on X86
1035	help
1036	  This driver can be used with the watchdog timer found on some
1037	  single board computers, namely the 6010 PII based computer.
1038	  It may well work with other cards.  It reads port 0x443 to enable
1039	  and re-set the watchdog timer, and reads port 0x45 to disable
1040	  the watchdog.  If you have a card that behave in similar ways,
1041	  you can probably make this driver work with your card as well.
1042
1043	  You can compile this driver directly into the kernel, or use
1044	  it as a module.  The module will be called sbc60xxwdt.
1045
1046config SBC8360_WDT
1047	tristate "SBC8360 Watchdog Timer"
1048	depends on X86_32
1049	---help---
1050
1051	  This is the driver for the hardware watchdog on the SBC8360 Single
1052	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1053
1054	  To compile this driver as a module, choose M here: the
1055	  module will be called sbc8360.
1056
1057	  Most people will say N.
1058
1059config SBC7240_WDT
1060	tristate "SBC Nano 7240 Watchdog Timer"
1061	depends on X86_32 && !UML
1062	---help---
1063	  This is the driver for the hardware watchdog found on the IEI
1064	  single board computers EPIC Nano 7240 (and likely others). This
1065	  watchdog simply watches your kernel to make sure it doesn't freeze,
1066	  and if it does, it reboots your computer after a certain amount of
1067	  time.
1068
1069	  To compile this driver as a module, choose M here: the
1070	  module will be called sbc7240_wdt.
1071
1072config CPU5_WDT
1073	tristate "SMA CPU5 Watchdog"
1074	depends on X86
1075	---help---
1076	  TBD.
1077	  To compile this driver as a module, choose M here: the
1078	  module will be called cpu5wdt.
1079
1080config SMSC_SCH311X_WDT
1081	tristate "SMSC SCH311X Watchdog Timer"
1082	depends on X86
1083	---help---
1084	  This is the driver for the hardware watchdog timer on the
1085	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1086	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1087	  serial ports).
1088
1089	  To compile this driver as a module, choose M here: the
1090	  module will be called sch311x_wdt.
1091
1092config SMSC37B787_WDT
1093	tristate "Winbond SMsC37B787 Watchdog Timer"
1094	depends on X86
1095	---help---
1096	  This is the driver for the hardware watchdog component on the
1097	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1098	  from Vision Systems and maybe others.
1099
1100	  This watchdog simply watches your kernel to make sure it doesn't
1101	  freeze, and if it does, it reboots your computer after a certain
1102	  amount of time.
1103
1104	  Usually a userspace daemon will notify the kernel WDT driver that
1105	  userspace is still alive, at regular intervals.
1106
1107	  To compile this driver as a module, choose M here: the
1108	  module will be called smsc37b787_wdt.
1109
1110	  Most people will say N.
1111
1112config VIA_WDT
1113	tristate "VIA Watchdog Timer"
1114	depends on X86 && PCI
1115	select WATCHDOG_CORE
1116	---help---
1117	This is the driver for the hardware watchdog timer on VIA
1118	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1119
1120	To compile this driver as a module, choose M here; the module
1121	will be called via_wdt.
1122
1123	Most people will say N.
1124
1125config W83627HF_WDT
1126	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1127	depends on X86
1128	select WATCHDOG_CORE
1129	---help---
1130	  This is the driver for the hardware watchdog on the following
1131	  Super I/O chips.
1132		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1133		W83637HF
1134		W83667HG/HG-B
1135		W83687THF
1136		W83697HF
1137		W83697UG
1138		NCT6775
1139		NCT6776
1140		NCT6779
1141		NCT6791
1142		NCT6792
1143
1144	  This watchdog simply watches your kernel to make sure it doesn't
1145	  freeze, and if it does, it reboots your computer after a certain
1146	  amount of time.
1147
1148	  To compile this driver as a module, choose M here: the
1149	  module will be called w83627hf_wdt.
1150
1151	  Most people will say N.
1152
1153config W83877F_WDT
1154	tristate "W83877F (EMACS) Watchdog Timer"
1155	depends on X86
1156	---help---
1157	  This is the driver for the hardware watchdog on the W83877F chipset
1158	  as used in EMACS PC-104 motherboards (and likely others).  This
1159	  watchdog simply watches your kernel to make sure it doesn't freeze,
1160	  and if it does, it reboots your computer after a certain amount of
1161	  time.
1162
1163	  To compile this driver as a module, choose M here: the
1164	  module will be called w83877f_wdt.
1165
1166	  Most people will say N.
1167
1168config W83977F_WDT
1169	tristate "W83977F (PCM-5335) Watchdog Timer"
1170	depends on X86
1171	---help---
1172	  This is the driver for the hardware watchdog on the W83977F I/O chip
1173	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1174	  watchdog simply watches your kernel to make sure it doesn't freeze,
1175	  and if it does, it reboots your computer after a certain amount of
1176	  time.
1177
1178	  To compile this driver as a module, choose M here: the
1179	  module will be called w83977f_wdt.
1180
1181config MACHZ_WDT
1182	tristate "ZF MachZ Watchdog"
1183	depends on X86
1184	---help---
1185	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1186	  N.  This is the driver for the watchdog timer built-in on that
1187	  processor using ZF-Logic interface.  This watchdog simply watches
1188	  your kernel to make sure it doesn't freeze, and if it does, it
1189	  reboots your computer after a certain amount of time.
1190
1191	  To compile this driver as a module, choose M here: the
1192	  module will be called machzwd.
1193
1194config SBC_EPX_C3_WATCHDOG
1195	tristate "Winsystems SBC EPX-C3 watchdog"
1196	depends on X86
1197	---help---
1198	  This is the driver for the built-in watchdog timer on the EPX-C3
1199	  Single-board computer made by Winsystems, Inc.
1200
1201	  *Note*: This hardware watchdog is not probeable and thus there
1202	  is no way to know if writing to its IO address will corrupt
1203	  your system or have any real effect.  The only way to be sure
1204	  that this driver does what you want is to make sure you
1205	  are running it on an EPX-C3 from Winsystems with the watchdog
1206	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1207	  IO ports.  Basically, the assumption is made that if you compile
1208	  this driver into your kernel and/or load it as a module, that you
1209	  know what you are doing and that you are in fact running on an
1210	  EPX-C3 board!
1211
1212	  To compile this driver as a module, choose M here: the
1213	  module will be called sbc_epx_c3.
1214
1215# M32R Architecture
1216
1217# M68K Architecture
1218
1219config M54xx_WATCHDOG
1220	tristate "MCF54xx watchdog support"
1221	depends on M548x
1222	help
1223	  To compile this driver as a module, choose M here: the
1224	  module will be called m54xx_wdt.
1225
1226# MicroBlaze Architecture
1227
1228# MIPS Architecture
1229
1230config ATH79_WDT
1231	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1232	depends on ATH79
1233	help
1234	  Hardware driver for the built-in watchdog timer on the Atheros
1235	  AR71XX/AR724X/AR913X SoCs.
1236
1237config BCM47XX_WDT
1238	tristate "Broadcom BCM47xx Watchdog Timer"
1239	depends on BCM47XX || ARCH_BCM_5301X
1240	select WATCHDOG_CORE
1241	help
1242	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1243
1244config RC32434_WDT
1245	tristate "IDT RC32434 SoC Watchdog Timer"
1246	depends on MIKROTIK_RB532
1247	help
1248	  Hardware driver for the IDT RC32434 SoC built-in
1249	  watchdog timer.
1250
1251	  To compile this driver as a module, choose M here: the
1252	  module will be called rc32434_wdt.
1253
1254config INDYDOG
1255	tristate "Indy/I2 Hardware Watchdog"
1256	depends on SGI_HAS_INDYDOG
1257	help
1258	  Hardware driver for the Indy's/I2's watchdog. This is a
1259	  watchdog timer that will reboot the machine after a 60 second
1260	  timer expired and no process has written to /dev/watchdog during
1261	  that time.
1262
1263config JZ4740_WDT
1264	tristate "Ingenic jz4740 SoC hardware watchdog"
1265	depends on MACH_JZ4740
1266	select WATCHDOG_CORE
1267	help
1268	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1269
1270config WDT_MTX1
1271	tristate "MTX-1 Hardware Watchdog"
1272	depends on MIPS_MTX1
1273	help
1274	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1275	  will reboot the machine after a 100 seconds timer expired.
1276
1277config PNX833X_WDT
1278	tristate "PNX833x Hardware Watchdog"
1279	depends on SOC_PNX8335
1280	help
1281	  Hardware driver for the PNX833x's watchdog. This is a
1282	  watchdog timer that will reboot the machine after a programmable
1283	  timer has expired and no process has written to /dev/watchdog during
1284	  that time.
1285
1286config SIBYTE_WDOG
1287	tristate "Sibyte SoC hardware watchdog"
1288	depends on CPU_SB1
1289	help
1290	  Watchdog driver for the built in watchdog hardware in Sibyte
1291	  SoC processors.  There are apparently two watchdog timers
1292	  on such processors; this driver supports only the first one,
1293	  because currently Linux only supports exporting one watchdog
1294	  to userspace.
1295
1296	  To compile this driver as a loadable module, choose M here.
1297	  The module will be called sb_wdog.
1298
1299config AR7_WDT
1300	tristate "TI AR7 Watchdog Timer"
1301	depends on AR7
1302	help
1303	  Hardware driver for the TI AR7 Watchdog Timer.
1304
1305config TXX9_WDT
1306	tristate "Toshiba TXx9 Watchdog Timer"
1307	depends on CPU_TX39XX || CPU_TX49XX
1308	select WATCHDOG_CORE
1309	help
1310	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1311
1312config OCTEON_WDT
1313	tristate "Cavium OCTEON SOC family Watchdog Timer"
1314	depends on CAVIUM_OCTEON_SOC
1315	default y
1316	select WATCHDOG_CORE
1317	select EXPORT_UASM if OCTEON_WDT = m
1318	help
1319	  Hardware driver for OCTEON's on chip watchdog timer.
1320	  Enables the watchdog for all cores running Linux. It
1321	  installs a NMI handler and pokes the watchdog based on an
1322	  interrupt.  On first expiration of the watchdog, the
1323	  interrupt handler pokes it.  The second expiration causes an
1324	  NMI that prints a message. The third expiration causes a
1325	  global soft reset.
1326
1327	  When userspace has /dev/watchdog open, no poking is done
1328	  from the first interrupt, it is then only poked when the
1329	  device is written.
1330
1331config BCM63XX_WDT
1332	tristate "Broadcom BCM63xx hardware watchdog"
1333	depends on BCM63XX
1334	help
1335	  Watchdog driver for the built in watchdog hardware in Broadcom
1336	  BCM63xx SoC.
1337
1338	  To compile this driver as a loadable module, choose M here.
1339	  The module will be called bcm63xx_wdt.
1340
1341config BCM2835_WDT
1342	tristate "Broadcom BCM2835 hardware watchdog"
1343	depends on ARCH_BCM2835
1344	select WATCHDOG_CORE
1345	help
1346	  Watchdog driver for the built in watchdog hardware in Broadcom
1347	  BCM2835 SoC.
1348
1349	  To compile this driver as a loadable module, choose M here.
1350	  The module will be called bcm2835_wdt.
1351
1352config BCM_KONA_WDT
1353	tristate "BCM Kona Watchdog"
1354	depends on ARCH_BCM_MOBILE
1355	select WATCHDOG_CORE
1356	help
1357	  Support for the watchdog timer on the following Broadcom BCM281xx
1358	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1359	  BCM28155 variants.
1360
1361	  Say 'Y' or 'M' here to enable the driver. The module will be called
1362	  bcm_kona_wdt.
1363
1364config BCM_KONA_WDT_DEBUG
1365	bool "DEBUGFS support for BCM Kona Watchdog"
1366	depends on BCM_KONA_WDT
1367	help
1368	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1369	  access to the driver's internal data structures as well as watchdog
1370	  timer hardware registres.
1371
1372	  If in doubt, say 'N'.
1373
1374config BCM7038_WDT
1375	tristate "BCM7038 Watchdog"
1376	select WATCHDOG_CORE
1377	help
1378	 Watchdog driver for the built-in hardware in Broadcom 7038 SoCs.
1379
1380	 Say 'Y or 'M' here to enable the driver.
1381
1382config IMGPDC_WDT
1383	tristate "Imagination Technologies PDC Watchdog Timer"
1384	depends on HAS_IOMEM
1385	depends on METAG || MIPS || COMPILE_TEST
1386	help
1387	  Driver for Imagination Technologies PowerDown Controller
1388	  Watchdog Timer.
1389
1390	  To compile this driver as a loadable module, choose M here.
1391	  The module will be called imgpdc_wdt.
1392
1393config LANTIQ_WDT
1394	tristate "Lantiq SoC watchdog"
1395	depends on LANTIQ
1396	help
1397	  Hardware driver for the Lantiq SoC Watchdog Timer.
1398
1399config RALINK_WDT
1400	tristate "Ralink SoC watchdog"
1401	select WATCHDOG_CORE
1402	depends on RALINK
1403	help
1404	  Hardware driver for the Ralink SoC Watchdog Timer.
1405
1406config MT7621_WDT
1407	tristate "Mediatek SoC watchdog"
1408	select WATCHDOG_CORE
1409	depends on SOC_MT7620 || SOC_MT7621
1410	help
1411	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1412
1413# PARISC Architecture
1414
1415# POWERPC Architecture
1416
1417config GEF_WDT
1418	tristate "GE Watchdog Timer"
1419	depends on GE_FPGA
1420	---help---
1421	  Watchdog timer found in a number of GE single board computers.
1422
1423config MPC5200_WDT
1424	bool "MPC52xx Watchdog Timer"
1425	depends on PPC_MPC52xx
1426	help
1427	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1428
1429config 8xxx_WDT
1430	tristate "MPC8xxx Platform Watchdog Timer"
1431	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1432	select WATCHDOG_CORE
1433	help
1434	  This driver is for a SoC level watchdog that exists on some
1435	  Freescale PowerPC processors. So far this driver supports:
1436	  - MPC8xx watchdogs
1437	  - MPC83xx watchdogs
1438	  - MPC86xx watchdogs
1439
1440	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1441
1442config MV64X60_WDT
1443	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1444	depends on MV64X60
1445
1446config PIKA_WDT
1447	tristate "PIKA FPGA Watchdog"
1448	depends on WARP
1449	default y
1450	help
1451	  This enables the watchdog in the PIKA FPGA. Currently used on
1452	  the Warp platform.
1453
1454config BOOKE_WDT
1455	tristate "PowerPC Book-E Watchdog Timer"
1456	depends on BOOKE || 4xx
1457	select WATCHDOG_CORE
1458	---help---
1459	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1460	  MPC85xx SOCs and the IBM PowerPC 440.
1461
1462	  Please see Documentation/watchdog/watchdog-api.txt for
1463	  more information.
1464
1465config BOOKE_WDT_DEFAULT_TIMEOUT
1466	int "PowerPC Book-E Watchdog Timer Default Timeout"
1467	depends on BOOKE_WDT
1468	default 38 if PPC_FSL_BOOK3E
1469	range 0 63 if PPC_FSL_BOOK3E
1470	default 3 if !PPC_FSL_BOOK3E
1471	range 0 3 if !PPC_FSL_BOOK3E
1472	help
1473	  Select the default watchdog timer period to be used by the PowerPC
1474	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1475	  position represented by this number transitions from zero to one.
1476
1477	  For Freescale Book-E processors, this is a number between 0 and 63.
1478	  For other Book-E processors, this is a number between 0 and 3.
1479
1480	  The value can be overridden by the wdt_period command-line parameter.
1481
1482config MEN_A21_WDT
1483       tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1484       select WATCHDOG_CORE
1485       depends on GPIOLIB || COMPILE_TEST
1486       help
1487        Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1488
1489	The driver can also be built as a module. If so, the module will be
1490	called mena21_wdt.
1491
1492	If unsure select N here.
1493
1494# PPC64 Architecture
1495
1496config WATCHDOG_RTAS
1497	tristate "RTAS watchdog"
1498	depends on PPC_RTAS
1499	help
1500	  This driver adds watchdog support for the RTAS watchdog.
1501
1502	  To compile this driver as a module, choose M here. The module
1503	  will be called wdrtas.
1504
1505# S390 Architecture
1506
1507config DIAG288_WATCHDOG
1508	tristate "System z diag288 Watchdog"
1509	depends on S390
1510	select WATCHDOG_CORE
1511	help
1512	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1513	  provide a virtual watchdog timer to their guest that cause a
1514	  user define Control Program command to be executed after a
1515	  timeout.
1516	  LPAR provides a very similar interface. This driver handles
1517	  both.
1518
1519	  To compile this driver as a module, choose M here. The module
1520	  will be called diag288_wdt.
1521
1522# SUPERH (sh + sh64) Architecture
1523
1524config SH_WDT
1525	tristate "SuperH Watchdog"
1526	depends on SUPERH && (CPU_SH3 || CPU_SH4)
1527	select WATCHDOG_CORE
1528	help
1529	  This driver adds watchdog support for the integrated watchdog in the
1530	  SuperH processors. If you have one of these processors and wish
1531	  to have watchdog support enabled, say Y, otherwise say N.
1532
1533	  As a side note, saying Y here will automatically boost HZ to 1000
1534	  so that the timer has a chance to clear the overflow counter. On
1535	  slower systems (such as the SH-2 and SH-3) this will likely yield
1536	  some performance issues. As such, the WDT should be avoided here
1537	  unless it is absolutely necessary.
1538
1539	  To compile this driver as a module, choose M here: the
1540	  module will be called shwdt.
1541
1542# SPARC Architecture
1543
1544# SPARC64 Architecture
1545
1546config WATCHDOG_CP1XXX
1547	tristate "CP1XXX Hardware Watchdog support"
1548	depends on SPARC64 && PCI
1549	---help---
1550	  This is the driver for the hardware watchdog timers present on
1551	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1552
1553	  To compile this driver as a module, choose M here: the
1554	  module will be called cpwatchdog.
1555
1556	  If you do not have a CompactPCI model CP1400 or CP1500, or
1557	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1558	  you should say N to this option.
1559
1560config WATCHDOG_RIO
1561	tristate "RIO Hardware Watchdog support"
1562	depends on SPARC64 && PCI
1563	help
1564	  Say Y here to support the hardware watchdog capability on Sun RIO
1565	  machines.  The watchdog timeout period is normally one minute but
1566	  can be changed with a boot-time parameter.
1567
1568# XTENSA Architecture
1569
1570# Xen Architecture
1571
1572config XEN_WDT
1573	tristate "Xen Watchdog support"
1574	depends on XEN
1575	help
1576	  Say Y here to support the hypervisor watchdog capability provided
1577	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
1578	  minute but can be changed with a boot-time parameter.
1579
1580config UML_WATCHDOG
1581	tristate "UML watchdog"
1582	depends on UML
1583
1584#
1585# ISA-based Watchdog Cards
1586#
1587
1588comment "ISA-based Watchdog Cards"
1589	depends on ISA
1590
1591config PCWATCHDOG
1592	tristate "Berkshire Products ISA-PC Watchdog"
1593	depends on ISA
1594	---help---
1595	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
1596	  This card simply watches your kernel to make sure it doesn't freeze,
1597	  and if it does, it reboots your computer after a certain amount of
1598	  time. This driver is like the WDT501 driver but for different
1599	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1600	  watchdog cards can be ordered from <http://www.berkprod.com/>.
1601
1602	  To compile this driver as a module, choose M here: the
1603	  module will be called pcwd.
1604
1605	  Most people will say N.
1606
1607config MIXCOMWD
1608	tristate "Mixcom Watchdog"
1609	depends on ISA
1610	---help---
1611	  This is a driver for the Mixcom hardware watchdog cards.  This
1612	  watchdog simply watches your kernel to make sure it doesn't freeze,
1613	  and if it does, it reboots your computer after a certain amount of
1614	  time.
1615
1616	  To compile this driver as a module, choose M here: the
1617	  module will be called mixcomwd.
1618
1619	  Most people will say N.
1620
1621config WDT
1622	tristate "WDT Watchdog timer"
1623	depends on ISA
1624	---help---
1625	  If you have a WDT500P or WDT501P watchdog board, say Y here,
1626	  otherwise N. It is not possible to probe for this board, which means
1627	  that you have to inform the kernel about the IO port and IRQ that
1628	  is needed (you can do this via the io and irq parameters)
1629
1630	  To compile this driver as a module, choose M here: the
1631	  module will be called wdt.
1632
1633#
1634# PCI-based Watchdog Cards
1635#
1636
1637comment "PCI-based Watchdog Cards"
1638	depends on PCI
1639
1640config PCIPCWATCHDOG
1641	tristate "Berkshire Products PCI-PC Watchdog"
1642	depends on PCI
1643	---help---
1644	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
1645	  This card simply watches your kernel to make sure it doesn't freeze,
1646	  and if it does, it reboots your computer after a certain amount of
1647	  time. The card can also monitor the internal temperature of the PC.
1648	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1649
1650	  To compile this driver as a module, choose M here: the
1651	  module will be called pcwd_pci.
1652
1653	  Most people will say N.
1654
1655config WDTPCI
1656	tristate "PCI-WDT500/501 Watchdog timer"
1657	depends on PCI
1658	---help---
1659	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1660
1661	  If you have a PCI-WDT501 watchdog board then you can enable the
1662	  temperature sensor by setting the type parameter to 501.
1663
1664	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1665	  can do this via the tachometer parameter. Only do this if you have a
1666	  fan tachometer actually set up.
1667
1668	  To compile this driver as a module, choose M here: the
1669	  module will be called wdt_pci.
1670
1671#
1672# USB-based Watchdog Cards
1673#
1674
1675comment "USB-based Watchdog Cards"
1676	depends on USB
1677
1678config USBPCWATCHDOG
1679	tristate "Berkshire Products USB-PC Watchdog"
1680	depends on USB
1681	---help---
1682	  This is the driver for the Berkshire Products USB-PC Watchdog card.
1683	  This card simply watches your kernel to make sure it doesn't freeze,
1684	  and if it does, it reboots your computer after a certain amount of
1685	  time. The card can also monitor the internal temperature of the PC.
1686	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1687
1688	  To compile this driver as a module, choose M here: the
1689	  module will be called pcwd_usb.
1690
1691	  Most people will say N.
1692
1693endif # WATCHDOG
1694