xref: /linux/drivers/watchdog/Kconfig (revision c0c914eca7f251c70facc37dfebeaf176601918d)
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_TANGO || COMPILE_TEST
149	depends on HAS_IOMEM
150	help
151	  Support for the watchdog in Sigma Designs SMP86xx (tango3)
152	  and SMP87xx (tango4) family chips.
153
154	  This driver can be built as a module. The module name is tangox_wdt.
155
156config WM831X_WATCHDOG
157	tristate "WM831x watchdog"
158	depends on MFD_WM831X
159	select WATCHDOG_CORE
160	help
161	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
162	  the watchdog triggers the system will be reset.
163
164config WM8350_WATCHDOG
165	tristate "WM8350 watchdog"
166	depends on MFD_WM8350
167	select WATCHDOG_CORE
168	help
169	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
170	  the watchdog triggers the system will be reset.
171
172config XILINX_WATCHDOG
173	tristate "Xilinx Watchdog timer"
174	depends on HAS_IOMEM
175	select WATCHDOG_CORE
176	help
177	  Watchdog driver for the xps_timebase_wdt ip core.
178
179	  To compile this driver as a module, choose M here: the
180	  module will be called of_xilinx_wdt.
181
182config ZIIRAVE_WATCHDOG
183	tristate "Zodiac RAVE Watchdog Timer"
184	depends on I2C
185	select WATCHDOG_CORE
186	help
187	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
188	  Processor.
189
190	  To compile this driver as a module, choose M here: the
191	  module will be called ziirave_wdt.
192
193# ALPHA Architecture
194
195# ARM Architecture
196
197config ARM_SP805_WATCHDOG
198	tristate "ARM SP805 Watchdog"
199	depends on (ARM || ARM64) && ARM_AMBA
200	select WATCHDOG_CORE
201	help
202	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
203	  the timeout is reached.
204
205config ASM9260_WATCHDOG
206	tristate "Alphascale ASM9260 watchdog"
207	depends on MACH_ASM9260
208	depends on OF
209	select WATCHDOG_CORE
210	select RESET_CONTROLLER
211	help
212	  Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
213	  system when the timeout is reached.
214
215config AT91RM9200_WATCHDOG
216	tristate "AT91RM9200 watchdog"
217	depends on SOC_AT91RM9200 && MFD_SYSCON
218	help
219	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
220	  system when the timeout is reached.
221
222config AT91SAM9X_WATCHDOG
223	tristate "AT91SAM9X / AT91CAP9 watchdog"
224	depends on ARCH_AT91
225	select WATCHDOG_CORE
226	help
227	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
228	  reboot your system when the timeout is reached.
229
230config SAMA5D4_WATCHDOG
231	tristate "Atmel SAMA5D4 Watchdog Timer"
232	depends on ARCH_AT91
233	select WATCHDOG_CORE
234	help
235	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
236	  Its Watchdog Timer Mode Register can be written more than once.
237	  This will reboot your system when the timeout is reached.
238
239config CADENCE_WATCHDOG
240	tristate "Cadence Watchdog Timer"
241	depends on HAS_IOMEM
242	select WATCHDOG_CORE
243	help
244	  Say Y here if you want to include support for the watchdog
245	  timer in the Xilinx Zynq.
246
247config 21285_WATCHDOG
248	tristate "DC21285 watchdog"
249	depends on FOOTBRIDGE
250	help
251	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
252	  here if you wish to use this. Alternatively say M to compile the
253	  driver as a module, which will be called wdt285.
254
255	  This driver does not work on all machines. In particular, early CATS
256	  boards have hardware problems that will cause the machine to simply
257	  lock up if the watchdog fires.
258
259	  "If in doubt, leave it out" - say N.
260
261config 977_WATCHDOG
262	tristate "NetWinder WB83C977 watchdog"
263	depends on FOOTBRIDGE && ARCH_NETWINDER
264	help
265	  Say Y here to include support for the WB977 watchdog included in
266	  NetWinder machines. Alternatively say M to compile the driver as
267	  a module, which will be called wdt977.
268
269	  Not sure? It's safe to say N.
270
271config IXP4XX_WATCHDOG
272	tristate "IXP4xx Watchdog"
273	depends on ARCH_IXP4XX
274	help
275	  Say Y here if to include support for the watchdog timer
276	  in the Intel IXP4xx network processors. This driver can
277	  be built as a module by choosing M. The module will
278	  be called ixp4xx_wdt.
279
280	  Note: The internal IXP4xx watchdog does a soft CPU reset
281	  which doesn't reset any peripherals. There are circumstances
282	  where the watchdog will fail to reset the board correctly
283	  (e.g., if the boot ROM is in an unreadable state).
284
285	  Say N if you are unsure.
286
287config KS8695_WATCHDOG
288	tristate "KS8695 watchdog"
289	depends on ARCH_KS8695
290	help
291	  Watchdog timer embedded into KS8695 processor. This will reboot your
292	  system when the timeout is reached.
293
294config HAVE_S3C2410_WATCHDOG
295	bool
296	help
297	  This will include watchdog timer support for Samsung SoCs. If
298	  you want to include watchdog support for any machine, kindly
299	  select this in the respective mach-XXXX/Kconfig file.
300
301config S3C2410_WATCHDOG
302	tristate "S3C2410 Watchdog"
303	depends on HAVE_S3C2410_WATCHDOG
304	select WATCHDOG_CORE
305	select MFD_SYSCON if ARCH_EXYNOS5
306	help
307	  Watchdog timer block in the Samsung SoCs. This will reboot
308	  the system when the timer expires with the watchdog enabled.
309
310	  The driver is limited by the speed of the system's PCLK
311	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
312	  then watchdog intervals of over approximately 20seconds are
313	  unavailable.
314
315	  The driver can be built as a module by choosing M, and will
316	  be called s3c2410_wdt
317
318config SA1100_WATCHDOG
319	tristate "SA1100/PXA2xx watchdog"
320	depends on ARCH_SA1100 || ARCH_PXA
321	help
322	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
323	  reboot your system when timeout is reached.
324
325	  NOTE: once enabled, this timer cannot be disabled.
326
327	  To compile this driver as a module, choose M here: the
328	  module will be called sa1100_wdt.
329
330config DW_WATCHDOG
331	tristate "Synopsys DesignWare watchdog"
332	depends on HAS_IOMEM
333	help
334	  Say Y here if to include support for the Synopsys DesignWare
335	  watchdog timer found in many chips.
336	  To compile this driver as a module, choose M here: the
337	  module will be called dw_wdt.
338
339config EP93XX_WATCHDOG
340	tristate "EP93xx Watchdog"
341	depends on ARCH_EP93XX
342	select WATCHDOG_CORE
343	help
344	  Say Y here if to include support for the watchdog timer
345	  embedded in the Cirrus Logic EP93xx family of devices.
346
347	  To compile this driver as a module, choose M here: the
348	  module will be called ep93xx_wdt.
349
350config OMAP_WATCHDOG
351	tristate "OMAP Watchdog"
352	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
353	select WATCHDOG_CORE
354	help
355	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
356	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
357
358config PNX4008_WATCHDOG
359	tristate "LPC32XX Watchdog"
360	depends on ARCH_LPC32XX
361	select WATCHDOG_CORE
362	help
363	  Say Y here if to include support for the watchdog timer
364	  in the LPC32XX processor.
365	  This driver can be built as a module by choosing M. The module
366	  will be called pnx4008_wdt.
367
368	  Say N if you are unsure.
369
370config IOP_WATCHDOG
371	tristate "IOP Watchdog"
372	depends on ARCH_IOP13XX
373	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
374	help
375	  Say Y here if to include support for the watchdog timer
376	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
377	  be built as a module by choosing M. The module will
378	  be called iop_wdt.
379
380	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
381	  affect both cores and the peripherals of the IOP.  The ATU-X
382	  and/or ATUe configuration registers will remain intact, but if
383	  operating as an Root Complex and/or Central Resource, the PCI-X
384	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
385
386config DAVINCI_WATCHDOG
387	tristate "DaVinci watchdog"
388	depends on ARCH_DAVINCI || ARCH_KEYSTONE
389	select WATCHDOG_CORE
390	help
391	  Say Y here if to include support for the watchdog timer
392	  in the DaVinci DM644x/DM646x or Keystone processors.
393	  To compile this driver as a module, choose M here: the
394	  module will be called davinci_wdt.
395
396	  NOTE: once enabled, this timer cannot be disabled.
397	  Say N if you are unsure.
398
399config ORION_WATCHDOG
400	tristate "Orion watchdog"
401	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
402	select WATCHDOG_CORE
403	help
404	  Say Y here if to include support for the watchdog timer
405	  in the Marvell Orion5x and Kirkwood ARM SoCs.
406	  To compile this driver as a module, choose M here: the
407	  module will be called orion_wdt.
408
409config RN5T618_WATCHDOG
410	tristate "Ricoh RN5T618 watchdog"
411	depends on MFD_RN5T618
412	select WATCHDOG_CORE
413	help
414	  If you say yes here you get support for watchdog on the Ricoh
415	  RN5T618 PMIC.
416
417	  This driver can also be built as a module.  If so, the module
418	  will be called rn5t618_wdt.
419
420config SUNXI_WATCHDOG
421	tristate "Allwinner SoCs watchdog support"
422	depends on ARCH_SUNXI
423	select WATCHDOG_CORE
424	help
425	  Say Y here to include support for the watchdog timer
426	  in Allwinner SoCs.
427	  To compile this driver as a module, choose M here: the
428	  module will be called sunxi_wdt.
429
430config COH901327_WATCHDOG
431	bool "ST-Ericsson COH 901 327 watchdog"
432	depends on ARCH_U300
433	default y if MACH_U300
434	select WATCHDOG_CORE
435	help
436	  Say Y here to include Watchdog timer support for the
437	  watchdog embedded into the ST-Ericsson U300 series platforms.
438	  This watchdog is used to reset the system and thus cannot be
439	  compiled as a module.
440
441config TWL4030_WATCHDOG
442	tristate "TWL4030 Watchdog"
443	depends on TWL4030_CORE
444	select WATCHDOG_CORE
445	help
446	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
447	  watchdog timer support for TWL4030 chips.
448
449config STMP3XXX_RTC_WATCHDOG
450	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
451	depends on RTC_DRV_STMP
452	select WATCHDOG_CORE
453	help
454	  Say Y here to include support for the watchdog timer inside
455	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
456	  To compile this driver as a module, choose M here: the
457	  module will be called stmp3xxx_rtc_wdt.
458
459config NUC900_WATCHDOG
460	tristate "Nuvoton NUC900 watchdog"
461	depends on ARCH_W90X900
462	help
463	  Say Y here if to include support for the watchdog timer
464	  for the Nuvoton NUC900 series SoCs.
465	  To compile this driver as a module, choose M here: the
466	  module will be called nuc900_wdt.
467
468config TS4800_WATCHDOG
469	tristate "TS-4800 Watchdog"
470	depends on HAS_IOMEM && OF
471	select WATCHDOG_CORE
472	select MFD_SYSCON
473	help
474	  Technologic Systems TS-4800 has watchdog timer implemented in
475	  an external FPGA. Say Y here if you want to support for the
476	  watchdog timer on TS-4800 board.
477
478config TS72XX_WATCHDOG
479	tristate "TS-72XX SBC Watchdog"
480	depends on MACH_TS72XX
481	help
482	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
483	  watchdog timer implemented in a external CPLD chip. Say Y here
484	  if you want to support for the watchdog timer on TS-72XX boards.
485
486	  To compile this driver as a module, choose M here: the
487	  module will be called ts72xx_wdt.
488
489config MAX63XX_WATCHDOG
490	tristate "Max63xx watchdog"
491	depends on HAS_IOMEM
492	select WATCHDOG_CORE
493	help
494	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
495
496config IMX2_WDT
497	tristate "IMX2+ Watchdog"
498	depends on ARCH_MXC || ARCH_LAYERSCAPE
499	select REGMAP_MMIO
500	select WATCHDOG_CORE
501	help
502	  This is the driver for the hardware watchdog
503	  on the Freescale IMX2 and later processors.
504	  If you have one of these processors and wish to have
505	  watchdog support enabled, say Y, otherwise say N.
506
507	  To compile this driver as a module, choose M here: the
508	  module will be called imx2_wdt.
509
510config UX500_WATCHDOG
511	tristate "ST-Ericsson Ux500 watchdog"
512	depends on MFD_DB8500_PRCMU
513	select WATCHDOG_CORE
514	default y
515	help
516	  Say Y here to include Watchdog timer support for the watchdog
517	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
518
519	  To compile this driver as a module, choose M here: the
520	  module will be called ux500_wdt.
521
522config RETU_WATCHDOG
523	tristate "Retu watchdog"
524	depends on MFD_RETU
525	select WATCHDOG_CORE
526	help
527	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
528	  N810). At least on N800 the watchdog cannot be disabled, so
529	  this driver is essential and you should enable it.
530
531	  To compile this driver as a module, choose M here: the
532	  module will be called retu_wdt.
533
534config MOXART_WDT
535	tristate "MOXART watchdog"
536	depends on ARCH_MOXART
537	help
538	  Say Y here to include Watchdog timer support for the watchdog
539	  existing on the MOXA ART SoC series platforms.
540
541	  To compile this driver as a module, choose M here: the
542	  module will be called moxart_wdt.
543
544config SIRFSOC_WATCHDOG
545	tristate "SiRFSOC watchdog"
546	depends on ARCH_SIRF
547	select WATCHDOG_CORE
548	default y
549	help
550	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
551	  the watchdog triggers the system will be reset.
552
553config ST_LPC_WATCHDOG
554	tristate "STMicroelectronics LPC Watchdog"
555	depends on ARCH_STI
556	depends on OF
557	select WATCHDOG_CORE
558	help
559	  Say Y here to include STMicroelectronics Low Power Controller
560	  (LPC) based Watchdog timer support.
561
562	  To compile this driver as a module, choose M here: the
563	  module will be called st_lpc_wdt.
564
565config TEGRA_WATCHDOG
566	tristate "Tegra watchdog"
567	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
568	select WATCHDOG_CORE
569	help
570	  Say Y here to include support for the watchdog timer
571	  embedded in NVIDIA Tegra SoCs.
572
573	  To compile this driver as a module, choose M here: the
574	  module will be called tegra_wdt.
575
576config QCOM_WDT
577	tristate "QCOM watchdog"
578	depends on HAS_IOMEM
579	depends on ARCH_QCOM
580	select WATCHDOG_CORE
581	help
582	  Say Y here to include Watchdog timer support for the watchdog found
583	  on QCOM chipsets.  Currently supported targets are the MSM8960,
584	  APQ8064, and IPQ8064.
585
586	  To compile this driver as a module, choose M here: the
587	  module will be called qcom_wdt.
588
589config MESON_WATCHDOG
590	tristate "Amlogic Meson SoCs watchdog support"
591	depends on ARCH_MESON
592	select WATCHDOG_CORE
593	help
594	  Say Y here to include support for the watchdog timer
595	  in Amlogic Meson SoCs.
596	  To compile this driver as a module, choose M here: the
597	  module will be called meson_wdt.
598
599config MEDIATEK_WATCHDOG
600	tristate "Mediatek SoCs watchdog support"
601	depends on ARCH_MEDIATEK
602	select WATCHDOG_CORE
603	help
604	  Say Y here to include support for the watchdog timer
605	  in Mediatek SoCs.
606	  To compile this driver as a module, choose M here: the
607	  module will be called mtk_wdt.
608
609config DIGICOLOR_WATCHDOG
610	tristate "Conexant Digicolor SoCs watchdog support"
611	depends on ARCH_DIGICOLOR
612	select WATCHDOG_CORE
613	help
614	  Say Y here to include support for the watchdog timer
615	  in Conexant Digicolor SoCs.
616	  To compile this driver as a module, choose M here: the
617	  module will be called digicolor_wdt.
618
619config LPC18XX_WATCHDOG
620	tristate "LPC18xx/43xx Watchdog"
621	depends on ARCH_LPC18XX || COMPILE_TEST
622	depends on HAS_IOMEM
623	select WATCHDOG_CORE
624	help
625	  Say Y here if to include support for the watchdog timer
626	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
627	  processors.
628	  To compile this driver as a module, choose M here: the
629	  module will be called lpc18xx_wdt.
630
631config ATLAS7_WATCHDOG
632	tristate "CSRatlas7 watchdog"
633	depends on ARCH_ATLAS7
634	help
635	  Say Y here to include Watchdog timer support for the watchdog
636	  existing on the CSRatlas7 series platforms.
637
638	  To compile this driver as a module, choose M here: the
639	  module will be called atlas7_wdt.
640
641# AVR32 Architecture
642
643config AT32AP700X_WDT
644	tristate "AT32AP700x watchdog"
645	depends on CPU_AT32AP700X
646	help
647	  Watchdog timer embedded into AT32AP700x devices. This will reboot
648	  your system when the timeout is reached.
649
650# BLACKFIN Architecture
651
652config BFIN_WDT
653	tristate "Blackfin On-Chip Watchdog Timer"
654	depends on BLACKFIN
655	---help---
656	  If you say yes here you will get support for the Blackfin On-Chip
657	  Watchdog Timer. If you have one of these processors and wish to
658	  have watchdog support enabled, say Y, otherwise say N.
659
660	  To compile this driver as a module, choose M here: the
661	  module will be called bfin_wdt.
662
663# CRIS Architecture
664
665# FRV Architecture
666
667# X86 (i386 + ia64 + x86_64) Architecture
668
669config ACQUIRE_WDT
670	tristate "Acquire SBC Watchdog Timer"
671	depends on X86
672	---help---
673	  This is the driver for the hardware watchdog on Single Board
674	  Computers produced by Acquire Inc (and others). This watchdog
675	  simply watches your kernel to make sure it doesn't freeze, and if
676	  it does, it reboots your computer after a certain amount of time.
677
678	  To compile this driver as a module, choose M here: the
679	  module will be called acquirewdt.
680
681	  Most people will say N.
682
683config ADVANTECH_WDT
684	tristate "Advantech SBC Watchdog Timer"
685	depends on X86
686	help
687	  If you are configuring a Linux kernel for the Advantech single-board
688	  computer, say `Y' here to support its built-in watchdog timer
689	  feature. More information can be found at
690	  <http://www.advantech.com.tw/products/>
691
692config ALIM1535_WDT
693	tristate "ALi M1535 PMU Watchdog Timer"
694	depends on X86 && PCI
695	---help---
696	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
697
698	  To compile this driver as a module, choose M here: the
699	  module will be called alim1535_wdt.
700
701	  Most people will say N.
702
703config ALIM7101_WDT
704	tristate "ALi M7101 PMU Computer Watchdog"
705	depends on PCI
706	help
707	  This is the driver for the hardware watchdog on the ALi M7101 PMU
708	  as used in the x86 Cobalt servers and also found in some
709	  SPARC Netra servers too.
710
711	  To compile this driver as a module, choose M here: the
712	  module will be called alim7101_wdt.
713
714	  Most people will say N.
715
716config F71808E_WDT
717	tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
718	depends on X86
719	help
720	  This is the driver for the hardware watchdog on the Fintek
721	  F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
722
723	  You can compile this driver directly into the kernel, or use
724	  it as a module.  The module will be called f71808e_wdt.
725
726config SP5100_TCO
727	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
728	depends on X86 && PCI
729	---help---
730	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
731	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
732	  the machine after its expiration. The expiration time can be
733	  configured with the "heartbeat" parameter.
734
735	  To compile this driver as a module, choose M here: the
736	  module will be called sp5100_tco.
737
738config GEODE_WDT
739	tristate "AMD Geode CS5535/CS5536 Watchdog"
740	depends on CS5535_MFGPT
741	help
742	  This driver enables a watchdog capability built into the
743	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
744	  processors.  This watchdog watches your kernel to make sure
745	  it doesn't freeze, and if it does, it reboots your computer after
746	  a certain amount of time.
747
748	  You can compile this driver directly into the kernel, or use
749	  it as a module.  The module will be called geodewdt.
750
751config SC520_WDT
752	tristate "AMD Elan SC520 processor Watchdog"
753	depends on MELAN
754	help
755	  This is the driver for the hardware watchdog built in to the
756	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
757	  This watchdog simply watches your kernel to make sure it doesn't
758	  freeze, and if it does, it reboots your computer after a certain
759	  amount of time.
760
761	  You can compile this driver directly into the kernel, or use
762	  it as a module.  The module will be called sc520_wdt.
763
764config SBC_FITPC2_WATCHDOG
765	tristate "Compulab SBC-FITPC2 watchdog"
766	depends on X86
767	---help---
768	  This is the driver for the built-in watchdog timer on the fit-PC2,
769	  fit-PC2i, CM-iAM single-board computers made by Compulab.
770
771	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
772	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
773
774	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
775	  so system will not be restarted while user in BIOS setup.
776
777	  Once watchdog was enabled the system will be restarted every
778	  "Watchdog Timer Value" period, so to prevent it user can restart or
779	  disable the watchdog.
780
781	  To compile this driver as a module, choose M here: the
782	  module will be called sbc_fitpc2_wdt.
783
784	  Most people will say N.
785
786config EUROTECH_WDT
787	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
788	depends on X86
789	help
790	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
791	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
792	  information are at <http://www.eurotech.it/>.
793
794config IB700_WDT
795	tristate "IB700 SBC Watchdog Timer"
796	depends on X86
797	---help---
798	  This is the driver for the hardware watchdog on the IB700 Single
799	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
800	  simply watches your kernel to make sure it doesn't freeze, and if
801	  it does, it reboots your computer after a certain amount of time.
802
803	  This driver is like the WDT501 driver but for slightly different hardware.
804
805	  To compile this driver as a module, choose M here: the
806	  module will be called ib700wdt.
807
808	  Most people will say N.
809
810config IBMASR
811	tristate "IBM Automatic Server Restart"
812	depends on X86
813	help
814	  This is the driver for the IBM Automatic Server Restart watchdog
815	  timer built-in into some eServer xSeries machines.
816
817	  To compile this driver as a module, choose M here: the
818	  module will be called ibmasr.
819
820config WAFER_WDT
821	tristate "ICP Single Board Computer Watchdog Timer"
822	depends on X86
823	help
824	  This is a driver for the hardware watchdog on the ICP Single
825	  Board Computer. This driver is working on (at least) the following
826	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
827
828	  To compile this driver as a module, choose M here: the
829	  module will be called wafer5823wdt.
830
831config I6300ESB_WDT
832	tristate "Intel 6300ESB Timer/Watchdog"
833	depends on PCI
834	---help---
835	  Hardware driver for the watchdog timer built into the Intel
836	  6300ESB controller hub.
837
838	  To compile this driver as a module, choose M here: the
839	  module will be called i6300esb.
840
841config IE6XX_WDT
842	tristate "Intel Atom E6xx Watchdog"
843	depends on X86 && PCI
844	select WATCHDOG_CORE
845	select MFD_CORE
846	select LPC_SCH
847	---help---
848	  Hardware driver for the watchdog timer built into the Intel
849	  Atom E6XX (TunnelCreek) processor.
850
851	  To compile this driver as a module, choose M here: the
852	  module will be called ie6xx_wdt.
853
854config INTEL_SCU_WATCHDOG
855	bool "Intel SCU Watchdog for Mobile Platforms"
856	depends on X86_INTEL_MID
857	---help---
858	  Hardware driver for the watchdog time built into the Intel SCU
859	  for Intel Mobile Platforms.
860
861	  To compile this driver as a module, choose M here.
862
863config INTEL_MID_WATCHDOG
864	tristate "Intel MID Watchdog Timer"
865	depends on X86_INTEL_MID
866	select WATCHDOG_CORE
867	---help---
868	  Watchdog timer driver built into the Intel SCU for Intel MID
869	  Platforms.
870
871	  This driver currently supports only the watchdog evolution
872	  implementation in SCU, available for Merrifield generation.
873
874	  To compile this driver as a module, choose M here.
875
876config ITCO_WDT
877	tristate "Intel TCO Timer/Watchdog"
878	depends on (X86 || IA64) && PCI
879	select WATCHDOG_CORE
880	depends on I2C || I2C=n
881	select LPC_ICH if !EXPERT
882	select I2C_I801 if !EXPERT && I2C
883	---help---
884	  Hardware driver for the intel TCO timer based watchdog devices.
885	  These drivers are included in the Intel 82801 I/O Controller
886	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
887	  controller hub.
888
889	  The TCO (Total Cost of Ownership) timer is a watchdog timer
890	  that will reboot the machine after its second expiration. The
891	  expiration time can be configured with the "heartbeat" parameter.
892
893	  On some motherboards the driver may fail to reset the chipset's
894	  NO_REBOOT flag which prevents the watchdog from rebooting the
895	  machine. If this is the case you will get a kernel message like
896	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
897
898	  To compile this driver as a module, choose M here: the
899	  module will be called iTCO_wdt.
900
901config ITCO_VENDOR_SUPPORT
902	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
903	depends on ITCO_WDT
904	---help---
905	  Add vendor specific support to the intel TCO timer based watchdog
906	  devices. At this moment we only have additional support for some
907	  SuperMicro Inc. motherboards.
908
909config IT8712F_WDT
910	tristate "IT8712F (Smart Guardian) Watchdog Timer"
911	depends on X86
912	---help---
913	  This is the driver for the built-in watchdog timer on the IT8712F
914	  Super I/0 chipset used on many motherboards.
915
916	  If the driver does not work, then make sure that the game port in
917	  the BIOS is enabled.
918
919	  To compile this driver as a module, choose M here: the
920	  module will be called it8712f_wdt.
921
922config IT87_WDT
923	tristate "IT87 Watchdog Timer"
924	depends on X86
925	---help---
926	  This is the driver for the hardware watchdog on the ITE IT8702,
927	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
928	  Super I/O chips.
929
930	  If the driver does not work, then make sure that the game port in
931	  the BIOS is enabled.
932
933	  This watchdog simply watches your kernel to make sure it doesn't
934	  freeze, and if it does, it reboots your computer after a certain
935	  amount of time.
936
937	  To compile this driver as a module, choose M here: the module will
938	  be called it87_wdt.
939
940config HP_WATCHDOG
941	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
942	depends on X86 && PCI
943	help
944	  A software monitoring watchdog and NMI sourcing driver. This driver
945	  will detect lockups and provide a stack trace. This is a driver that
946	  will only load on an HP ProLiant system with a minimum of iLO2 support.
947	  To compile this driver as a module, choose M here: the module will be
948	  called hpwdt.
949
950config KEMPLD_WDT
951	tristate "Kontron COM Watchdog Timer"
952	depends on MFD_KEMPLD
953	select WATCHDOG_CORE
954	help
955	  Support for the PLD watchdog on some Kontron ETX and COMexpress
956	  (ETXexpress) modules
957
958	  This driver can also be built as a module. If so, the module will be
959	  called kempld_wdt.
960
961config HPWDT_NMI_DECODING
962	bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
963	depends on HP_WATCHDOG
964	default y
965	help
966	  When an NMI occurs this feature will make the necessary BIOS calls to
967	  log the cause of the NMI.
968
969config SC1200_WDT
970	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
971	depends on X86
972	help
973	  This is a driver for National Semiconductor PC87307/PC97307 hardware
974	  watchdog cards as found on the SC1200. This watchdog is mainly used
975	  for power management purposes and can be used to power down the device
976	  during inactivity periods (includes interrupt activity monitoring).
977
978	  To compile this driver as a module, choose M here: the
979	  module will be called sc1200wdt.
980
981	  Most people will say N.
982
983config SCx200_WDT
984	tristate "National Semiconductor SCx200 Watchdog"
985	depends on SCx200 && PCI
986	help
987	  Enable the built-in watchdog timer support on the National
988	  Semiconductor SCx200 processors.
989
990	  If compiled as a module, it will be called scx200_wdt.
991
992config PC87413_WDT
993	tristate "NS PC87413 watchdog"
994	depends on X86
995	---help---
996	  This is the driver for the hardware watchdog on the PC87413 chipset
997	  This watchdog simply watches your kernel to make sure it doesn't
998	  freeze, and if it does, it reboots your computer after a certain
999	  amount of time.
1000
1001	  To compile this driver as a module, choose M here: the
1002	  module will be called pc87413_wdt.
1003
1004	  Most people will say N.
1005
1006config NV_TCO
1007	tristate "nVidia TCO Timer/Watchdog"
1008	depends on X86 && PCI
1009	---help---
1010	  Hardware driver for the TCO timer built into the nVidia Hub family
1011	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1012	  watchdog timer that will reboot the machine after its second
1013	  expiration. The expiration time can be configured with the
1014	  "heartbeat" parameter.
1015
1016	  On some motherboards the driver may fail to reset the chipset's
1017	  NO_REBOOT flag which prevents the watchdog from rebooting the
1018	  machine. If this is the case you will get a kernel message like
1019	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1020
1021	  To compile this driver as a module, choose M here: the
1022	  module will be called nv_tco.
1023
1024config RDC321X_WDT
1025	tristate "RDC R-321x SoC watchdog"
1026	depends on X86_RDC321X
1027	help
1028	  This is the driver for the built in hardware watchdog
1029	  in the RDC R-321x SoC.
1030
1031	  To compile this driver as a module, choose M here: the
1032	  module will be called rdc321x_wdt.
1033
1034config 60XX_WDT
1035	tristate "SBC-60XX Watchdog Timer"
1036	depends on X86
1037	help
1038	  This driver can be used with the watchdog timer found on some
1039	  single board computers, namely the 6010 PII based computer.
1040	  It may well work with other cards.  It reads port 0x443 to enable
1041	  and re-set the watchdog timer, and reads port 0x45 to disable
1042	  the watchdog.  If you have a card that behave in similar ways,
1043	  you can probably make this driver work with your card as well.
1044
1045	  You can compile this driver directly into the kernel, or use
1046	  it as a module.  The module will be called sbc60xxwdt.
1047
1048config SBC8360_WDT
1049	tristate "SBC8360 Watchdog Timer"
1050	depends on X86_32
1051	---help---
1052
1053	  This is the driver for the hardware watchdog on the SBC8360 Single
1054	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1055
1056	  To compile this driver as a module, choose M here: the
1057	  module will be called sbc8360.
1058
1059	  Most people will say N.
1060
1061config SBC7240_WDT
1062	tristate "SBC Nano 7240 Watchdog Timer"
1063	depends on X86_32 && !UML
1064	---help---
1065	  This is the driver for the hardware watchdog found on the IEI
1066	  single board computers EPIC Nano 7240 (and likely others). This
1067	  watchdog simply watches your kernel to make sure it doesn't freeze,
1068	  and if it does, it reboots your computer after a certain amount of
1069	  time.
1070
1071	  To compile this driver as a module, choose M here: the
1072	  module will be called sbc7240_wdt.
1073
1074config CPU5_WDT
1075	tristate "SMA CPU5 Watchdog"
1076	depends on X86
1077	---help---
1078	  TBD.
1079	  To compile this driver as a module, choose M here: the
1080	  module will be called cpu5wdt.
1081
1082config SMSC_SCH311X_WDT
1083	tristate "SMSC SCH311X Watchdog Timer"
1084	depends on X86
1085	---help---
1086	  This is the driver for the hardware watchdog timer on the
1087	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1088	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1089	  serial ports).
1090
1091	  To compile this driver as a module, choose M here: the
1092	  module will be called sch311x_wdt.
1093
1094config SMSC37B787_WDT
1095	tristate "Winbond SMsC37B787 Watchdog Timer"
1096	depends on X86
1097	---help---
1098	  This is the driver for the hardware watchdog component on the
1099	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1100	  from Vision Systems and maybe others.
1101
1102	  This watchdog simply watches your kernel to make sure it doesn't
1103	  freeze, and if it does, it reboots your computer after a certain
1104	  amount of time.
1105
1106	  Usually a userspace daemon will notify the kernel WDT driver that
1107	  userspace is still alive, at regular intervals.
1108
1109	  To compile this driver as a module, choose M here: the
1110	  module will be called smsc37b787_wdt.
1111
1112	  Most people will say N.
1113
1114config VIA_WDT
1115	tristate "VIA Watchdog Timer"
1116	depends on X86 && PCI
1117	select WATCHDOG_CORE
1118	---help---
1119	This is the driver for the hardware watchdog timer on VIA
1120	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1121
1122	To compile this driver as a module, choose M here; the module
1123	will be called via_wdt.
1124
1125	Most people will say N.
1126
1127config W83627HF_WDT
1128	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1129	depends on X86
1130	select WATCHDOG_CORE
1131	---help---
1132	  This is the driver for the hardware watchdog on the following
1133	  Super I/O chips.
1134		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1135		W83637HF
1136		W83667HG/HG-B
1137		W83687THF
1138		W83697HF
1139		W83697UG
1140		NCT6775
1141		NCT6776
1142		NCT6779
1143		NCT6791
1144		NCT6792
1145
1146	  This watchdog simply watches your kernel to make sure it doesn't
1147	  freeze, and if it does, it reboots your computer after a certain
1148	  amount of time.
1149
1150	  To compile this driver as a module, choose M here: the
1151	  module will be called w83627hf_wdt.
1152
1153	  Most people will say N.
1154
1155config W83877F_WDT
1156	tristate "W83877F (EMACS) Watchdog Timer"
1157	depends on X86
1158	---help---
1159	  This is the driver for the hardware watchdog on the W83877F chipset
1160	  as used in EMACS PC-104 motherboards (and likely others).  This
1161	  watchdog simply watches your kernel to make sure it doesn't freeze,
1162	  and if it does, it reboots your computer after a certain amount of
1163	  time.
1164
1165	  To compile this driver as a module, choose M here: the
1166	  module will be called w83877f_wdt.
1167
1168	  Most people will say N.
1169
1170config W83977F_WDT
1171	tristate "W83977F (PCM-5335) Watchdog Timer"
1172	depends on X86
1173	---help---
1174	  This is the driver for the hardware watchdog on the W83977F I/O chip
1175	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1176	  watchdog simply watches your kernel to make sure it doesn't freeze,
1177	  and if it does, it reboots your computer after a certain amount of
1178	  time.
1179
1180	  To compile this driver as a module, choose M here: the
1181	  module will be called w83977f_wdt.
1182
1183config MACHZ_WDT
1184	tristate "ZF MachZ Watchdog"
1185	depends on X86
1186	---help---
1187	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1188	  N.  This is the driver for the watchdog timer built-in on that
1189	  processor using ZF-Logic interface.  This watchdog simply watches
1190	  your kernel to make sure it doesn't freeze, and if it does, it
1191	  reboots your computer after a certain amount of time.
1192
1193	  To compile this driver as a module, choose M here: the
1194	  module will be called machzwd.
1195
1196config SBC_EPX_C3_WATCHDOG
1197	tristate "Winsystems SBC EPX-C3 watchdog"
1198	depends on X86
1199	---help---
1200	  This is the driver for the built-in watchdog timer on the EPX-C3
1201	  Single-board computer made by Winsystems, Inc.
1202
1203	  *Note*: This hardware watchdog is not probeable and thus there
1204	  is no way to know if writing to its IO address will corrupt
1205	  your system or have any real effect.  The only way to be sure
1206	  that this driver does what you want is to make sure you
1207	  are running it on an EPX-C3 from Winsystems with the watchdog
1208	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1209	  IO ports.  Basically, the assumption is made that if you compile
1210	  this driver into your kernel and/or load it as a module, that you
1211	  know what you are doing and that you are in fact running on an
1212	  EPX-C3 board!
1213
1214	  To compile this driver as a module, choose M here: the
1215	  module will be called sbc_epx_c3.
1216
1217# M32R Architecture
1218
1219# M68K Architecture
1220
1221config M54xx_WATCHDOG
1222	tristate "MCF54xx watchdog support"
1223	depends on M548x
1224	help
1225	  To compile this driver as a module, choose M here: the
1226	  module will be called m54xx_wdt.
1227
1228# MicroBlaze Architecture
1229
1230# MIPS Architecture
1231
1232config ATH79_WDT
1233	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1234	depends on ATH79
1235	help
1236	  Hardware driver for the built-in watchdog timer on the Atheros
1237	  AR71XX/AR724X/AR913X SoCs.
1238
1239config BCM47XX_WDT
1240	tristate "Broadcom BCM47xx Watchdog Timer"
1241	depends on BCM47XX || ARCH_BCM_5301X
1242	select WATCHDOG_CORE
1243	help
1244	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1245
1246config RC32434_WDT
1247	tristate "IDT RC32434 SoC Watchdog Timer"
1248	depends on MIKROTIK_RB532
1249	help
1250	  Hardware driver for the IDT RC32434 SoC built-in
1251	  watchdog timer.
1252
1253	  To compile this driver as a module, choose M here: the
1254	  module will be called rc32434_wdt.
1255
1256config INDYDOG
1257	tristate "Indy/I2 Hardware Watchdog"
1258	depends on SGI_HAS_INDYDOG
1259	help
1260	  Hardware driver for the Indy's/I2's watchdog. This is a
1261	  watchdog timer that will reboot the machine after a 60 second
1262	  timer expired and no process has written to /dev/watchdog during
1263	  that time.
1264
1265config JZ4740_WDT
1266	tristate "Ingenic jz4740 SoC hardware watchdog"
1267	depends on MACH_JZ4740
1268	select WATCHDOG_CORE
1269	help
1270	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1271
1272config WDT_MTX1
1273	tristate "MTX-1 Hardware Watchdog"
1274	depends on MIPS_MTX1
1275	help
1276	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1277	  will reboot the machine after a 100 seconds timer expired.
1278
1279config PNX833X_WDT
1280	tristate "PNX833x Hardware Watchdog"
1281	depends on SOC_PNX8335
1282	help
1283	  Hardware driver for the PNX833x's watchdog. This is a
1284	  watchdog timer that will reboot the machine after a programmable
1285	  timer has expired and no process has written to /dev/watchdog during
1286	  that time.
1287
1288config SIBYTE_WDOG
1289	tristate "Sibyte SoC hardware watchdog"
1290	depends on CPU_SB1
1291	help
1292	  Watchdog driver for the built in watchdog hardware in Sibyte
1293	  SoC processors.  There are apparently two watchdog timers
1294	  on such processors; this driver supports only the first one,
1295	  because currently Linux only supports exporting one watchdog
1296	  to userspace.
1297
1298	  To compile this driver as a loadable module, choose M here.
1299	  The module will be called sb_wdog.
1300
1301config AR7_WDT
1302	tristate "TI AR7 Watchdog Timer"
1303	depends on AR7
1304	help
1305	  Hardware driver for the TI AR7 Watchdog Timer.
1306
1307config TXX9_WDT
1308	tristate "Toshiba TXx9 Watchdog Timer"
1309	depends on CPU_TX39XX || CPU_TX49XX
1310	select WATCHDOG_CORE
1311	help
1312	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1313
1314config OCTEON_WDT
1315	tristate "Cavium OCTEON SOC family Watchdog Timer"
1316	depends on CAVIUM_OCTEON_SOC
1317	default y
1318	select WATCHDOG_CORE
1319	select EXPORT_UASM if OCTEON_WDT = m
1320	help
1321	  Hardware driver for OCTEON's on chip watchdog timer.
1322	  Enables the watchdog for all cores running Linux. It
1323	  installs a NMI handler and pokes the watchdog based on an
1324	  interrupt.  On first expiration of the watchdog, the
1325	  interrupt handler pokes it.  The second expiration causes an
1326	  NMI that prints a message. The third expiration causes a
1327	  global soft reset.
1328
1329	  When userspace has /dev/watchdog open, no poking is done
1330	  from the first interrupt, it is then only poked when the
1331	  device is written.
1332
1333config BCM63XX_WDT
1334	tristate "Broadcom BCM63xx hardware watchdog"
1335	depends on BCM63XX
1336	help
1337	  Watchdog driver for the built in watchdog hardware in Broadcom
1338	  BCM63xx SoC.
1339
1340	  To compile this driver as a loadable module, choose M here.
1341	  The module will be called bcm63xx_wdt.
1342
1343config BCM2835_WDT
1344	tristate "Broadcom BCM2835 hardware watchdog"
1345	depends on ARCH_BCM2835
1346	select WATCHDOG_CORE
1347	help
1348	  Watchdog driver for the built in watchdog hardware in Broadcom
1349	  BCM2835 SoC.
1350
1351	  To compile this driver as a loadable module, choose M here.
1352	  The module will be called bcm2835_wdt.
1353
1354config BCM_KONA_WDT
1355	tristate "BCM Kona Watchdog"
1356	depends on ARCH_BCM_MOBILE
1357	select WATCHDOG_CORE
1358	help
1359	  Support for the watchdog timer on the following Broadcom BCM281xx
1360	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1361	  BCM28155 variants.
1362
1363	  Say 'Y' or 'M' here to enable the driver. The module will be called
1364	  bcm_kona_wdt.
1365
1366config BCM_KONA_WDT_DEBUG
1367	bool "DEBUGFS support for BCM Kona Watchdog"
1368	depends on BCM_KONA_WDT
1369	help
1370	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1371	  access to the driver's internal data structures as well as watchdog
1372	  timer hardware registres.
1373
1374	  If in doubt, say 'N'.
1375
1376config BCM7038_WDT
1377	tristate "BCM7038 Watchdog"
1378	select WATCHDOG_CORE
1379	depends on HAS_IOMEM
1380	help
1381	 Watchdog driver for the built-in hardware in Broadcom 7038 SoCs.
1382
1383	 Say 'Y or 'M' here to enable the driver.
1384
1385config IMGPDC_WDT
1386	tristate "Imagination Technologies PDC Watchdog Timer"
1387	depends on HAS_IOMEM
1388	depends on METAG || MIPS || COMPILE_TEST
1389	select WATCHDOG_CORE
1390	help
1391	  Driver for Imagination Technologies PowerDown Controller
1392	  Watchdog Timer.
1393
1394	  To compile this driver as a loadable module, choose M here.
1395	  The module will be called imgpdc_wdt.
1396
1397config LANTIQ_WDT
1398	tristate "Lantiq SoC watchdog"
1399	depends on LANTIQ
1400	help
1401	  Hardware driver for the Lantiq SoC Watchdog Timer.
1402
1403config RALINK_WDT
1404	tristate "Ralink SoC watchdog"
1405	select WATCHDOG_CORE
1406	depends on RALINK
1407	help
1408	  Hardware driver for the Ralink SoC Watchdog Timer.
1409
1410config MT7621_WDT
1411	tristate "Mediatek SoC watchdog"
1412	select WATCHDOG_CORE
1413	depends on SOC_MT7620 || SOC_MT7621
1414	help
1415	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1416
1417# PARISC Architecture
1418
1419# POWERPC Architecture
1420
1421config GEF_WDT
1422	tristate "GE Watchdog Timer"
1423	depends on GE_FPGA
1424	---help---
1425	  Watchdog timer found in a number of GE single board computers.
1426
1427config MPC5200_WDT
1428	bool "MPC52xx Watchdog Timer"
1429	depends on PPC_MPC52xx
1430	help
1431	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1432
1433config 8xxx_WDT
1434	tristate "MPC8xxx Platform Watchdog Timer"
1435	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1436	select WATCHDOG_CORE
1437	help
1438	  This driver is for a SoC level watchdog that exists on some
1439	  Freescale PowerPC processors. So far this driver supports:
1440	  - MPC8xx watchdogs
1441	  - MPC83xx watchdogs
1442	  - MPC86xx watchdogs
1443
1444	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1445
1446config MV64X60_WDT
1447	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1448	depends on MV64X60
1449
1450config PIKA_WDT
1451	tristate "PIKA FPGA Watchdog"
1452	depends on WARP
1453	default y
1454	help
1455	  This enables the watchdog in the PIKA FPGA. Currently used on
1456	  the Warp platform.
1457
1458config BOOKE_WDT
1459	tristate "PowerPC Book-E Watchdog Timer"
1460	depends on BOOKE || 4xx
1461	select WATCHDOG_CORE
1462	---help---
1463	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1464	  MPC85xx SOCs and the IBM PowerPC 440.
1465
1466	  Please see Documentation/watchdog/watchdog-api.txt for
1467	  more information.
1468
1469config BOOKE_WDT_DEFAULT_TIMEOUT
1470	int "PowerPC Book-E Watchdog Timer Default Timeout"
1471	depends on BOOKE_WDT
1472	default 38 if PPC_FSL_BOOK3E
1473	range 0 63 if PPC_FSL_BOOK3E
1474	default 3 if !PPC_FSL_BOOK3E
1475	range 0 3 if !PPC_FSL_BOOK3E
1476	help
1477	  Select the default watchdog timer period to be used by the PowerPC
1478	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1479	  position represented by this number transitions from zero to one.
1480
1481	  For Freescale Book-E processors, this is a number between 0 and 63.
1482	  For other Book-E processors, this is a number between 0 and 3.
1483
1484	  The value can be overridden by the wdt_period command-line parameter.
1485
1486config MEN_A21_WDT
1487       tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1488       select WATCHDOG_CORE
1489       depends on GPIOLIB || COMPILE_TEST
1490       help
1491        Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1492
1493	The driver can also be built as a module. If so, the module will be
1494	called mena21_wdt.
1495
1496	If unsure select N here.
1497
1498# PPC64 Architecture
1499
1500config WATCHDOG_RTAS
1501	tristate "RTAS watchdog"
1502	depends on PPC_RTAS
1503	help
1504	  This driver adds watchdog support for the RTAS watchdog.
1505
1506	  To compile this driver as a module, choose M here. The module
1507	  will be called wdrtas.
1508
1509# S390 Architecture
1510
1511config DIAG288_WATCHDOG
1512	tristate "System z diag288 Watchdog"
1513	depends on S390
1514	select WATCHDOG_CORE
1515	help
1516	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1517	  provide a virtual watchdog timer to their guest that cause a
1518	  user define Control Program command to be executed after a
1519	  timeout.
1520	  LPAR provides a very similar interface. This driver handles
1521	  both.
1522
1523	  To compile this driver as a module, choose M here. The module
1524	  will be called diag288_wdt.
1525
1526# SUPERH (sh + sh64) Architecture
1527
1528config SH_WDT
1529	tristate "SuperH Watchdog"
1530	depends on SUPERH && (CPU_SH3 || CPU_SH4)
1531	select WATCHDOG_CORE
1532	help
1533	  This driver adds watchdog support for the integrated watchdog in the
1534	  SuperH processors. If you have one of these processors and wish
1535	  to have watchdog support enabled, say Y, otherwise say N.
1536
1537	  As a side note, saying Y here will automatically boost HZ to 1000
1538	  so that the timer has a chance to clear the overflow counter. On
1539	  slower systems (such as the SH-2 and SH-3) this will likely yield
1540	  some performance issues. As such, the WDT should be avoided here
1541	  unless it is absolutely necessary.
1542
1543	  To compile this driver as a module, choose M here: the
1544	  module will be called shwdt.
1545
1546# SPARC Architecture
1547
1548# SPARC64 Architecture
1549
1550config WATCHDOG_CP1XXX
1551	tristate "CP1XXX Hardware Watchdog support"
1552	depends on SPARC64 && PCI
1553	---help---
1554	  This is the driver for the hardware watchdog timers present on
1555	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1556
1557	  To compile this driver as a module, choose M here: the
1558	  module will be called cpwatchdog.
1559
1560	  If you do not have a CompactPCI model CP1400 or CP1500, or
1561	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1562	  you should say N to this option.
1563
1564config WATCHDOG_RIO
1565	tristate "RIO Hardware Watchdog support"
1566	depends on SPARC64 && PCI
1567	help
1568	  Say Y here to support the hardware watchdog capability on Sun RIO
1569	  machines.  The watchdog timeout period is normally one minute but
1570	  can be changed with a boot-time parameter.
1571
1572config WATCHDOG_SUN4V
1573	tristate "Sun4v Watchdog support"
1574	select WATCHDOG_CORE
1575	depends on SPARC64
1576	help
1577	  Say Y here to support the hypervisor watchdog capability embedded
1578	  in the SPARC sun4v architecture.
1579
1580	  To compile this driver as a module, choose M here. The module will
1581	  be called sun4v_wdt.
1582
1583# XTENSA Architecture
1584
1585# Xen Architecture
1586
1587config XEN_WDT
1588	tristate "Xen Watchdog support"
1589	depends on XEN
1590	help
1591	  Say Y here to support the hypervisor watchdog capability provided
1592	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
1593	  minute but can be changed with a boot-time parameter.
1594
1595config UML_WATCHDOG
1596	tristate "UML watchdog"
1597	depends on UML
1598
1599#
1600# ISA-based Watchdog Cards
1601#
1602
1603comment "ISA-based Watchdog Cards"
1604	depends on ISA
1605
1606config PCWATCHDOG
1607	tristate "Berkshire Products ISA-PC Watchdog"
1608	depends on ISA
1609	---help---
1610	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
1611	  This card simply watches your kernel to make sure it doesn't freeze,
1612	  and if it does, it reboots your computer after a certain amount of
1613	  time. This driver is like the WDT501 driver but for different
1614	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1615	  watchdog cards can be ordered from <http://www.berkprod.com/>.
1616
1617	  To compile this driver as a module, choose M here: the
1618	  module will be called pcwd.
1619
1620	  Most people will say N.
1621
1622config MIXCOMWD
1623	tristate "Mixcom Watchdog"
1624	depends on ISA
1625	---help---
1626	  This is a driver for the Mixcom hardware watchdog cards.  This
1627	  watchdog simply watches your kernel to make sure it doesn't freeze,
1628	  and if it does, it reboots your computer after a certain amount of
1629	  time.
1630
1631	  To compile this driver as a module, choose M here: the
1632	  module will be called mixcomwd.
1633
1634	  Most people will say N.
1635
1636config WDT
1637	tristate "WDT Watchdog timer"
1638	depends on ISA
1639	---help---
1640	  If you have a WDT500P or WDT501P watchdog board, say Y here,
1641	  otherwise N. It is not possible to probe for this board, which means
1642	  that you have to inform the kernel about the IO port and IRQ that
1643	  is needed (you can do this via the io and irq parameters)
1644
1645	  To compile this driver as a module, choose M here: the
1646	  module will be called wdt.
1647
1648#
1649# PCI-based Watchdog Cards
1650#
1651
1652comment "PCI-based Watchdog Cards"
1653	depends on PCI
1654
1655config PCIPCWATCHDOG
1656	tristate "Berkshire Products PCI-PC Watchdog"
1657	depends on PCI
1658	---help---
1659	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
1660	  This card simply watches your kernel to make sure it doesn't freeze,
1661	  and if it does, it reboots your computer after a certain amount of
1662	  time. The card can also monitor the internal temperature of the PC.
1663	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1664
1665	  To compile this driver as a module, choose M here: the
1666	  module will be called pcwd_pci.
1667
1668	  Most people will say N.
1669
1670config WDTPCI
1671	tristate "PCI-WDT500/501 Watchdog timer"
1672	depends on PCI
1673	---help---
1674	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1675
1676	  If you have a PCI-WDT501 watchdog board then you can enable the
1677	  temperature sensor by setting the type parameter to 501.
1678
1679	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1680	  can do this via the tachometer parameter. Only do this if you have a
1681	  fan tachometer actually set up.
1682
1683	  To compile this driver as a module, choose M here: the
1684	  module will be called wdt_pci.
1685
1686#
1687# USB-based Watchdog Cards
1688#
1689
1690comment "USB-based Watchdog Cards"
1691	depends on USB
1692
1693config USBPCWATCHDOG
1694	tristate "Berkshire Products USB-PC Watchdog"
1695	depends on USB
1696	---help---
1697	  This is the driver for the Berkshire Products USB-PC Watchdog card.
1698	  This card simply watches your kernel to make sure it doesn't freeze,
1699	  and if it does, it reboots your computer after a certain amount of
1700	  time. The card can also monitor the internal temperature of the PC.
1701	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1702
1703	  To compile this driver as a module, choose M here: the
1704	  module will be called pcwd_usb.
1705
1706	  Most people will say N.
1707
1708endif # WATCHDOG
1709