xref: /openbmc/linux/drivers/watchdog/Kconfig (revision 79a93295)
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	help
52	  Say Y here if you want to enable watchdog device status read through
53	  sysfs attributes.
54
55#
56# General Watchdog drivers
57#
58
59comment "Watchdog Device Drivers"
60
61# Architecture Independent
62
63config SOFT_WATCHDOG
64	tristate "Software watchdog"
65	select WATCHDOG_CORE
66	help
67	  A software monitoring watchdog. This will fail to reboot your system
68	  from some situations that the hardware watchdog will recover
69	  from. Equally it's a lot cheaper to install.
70
71	  To compile this driver as a module, choose M here: the
72	  module will be called softdog.
73
74config DA9052_WATCHDOG
75	tristate "Dialog DA9052 Watchdog"
76	depends on PMIC_DA9052
77	select WATCHDOG_CORE
78	help
79	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
80	  cause system reset.
81
82	  Say Y here to include support for the DA9052 watchdog.
83	  Alternatively say M to compile the driver as a module,
84	  which will be called da9052_wdt.
85
86config DA9055_WATCHDOG
87	tristate "Dialog Semiconductor DA9055 Watchdog"
88	depends on MFD_DA9055
89	select WATCHDOG_CORE
90	help
91	  If you say yes here you get support for watchdog on the Dialog
92	  Semiconductor DA9055 PMIC.
93
94	  This driver can also be built as a module.  If so, the module
95	  will be called da9055_wdt.
96
97config DA9063_WATCHDOG
98	tristate "Dialog DA9063 Watchdog"
99	depends on MFD_DA9063
100	select WATCHDOG_CORE
101	help
102	  Support for the watchdog in the DA9063 PMIC.
103
104	  This driver can be built as a module. The module name is da9063_wdt.
105
106config DA9062_WATCHDOG
107	tristate "Dialog DA9062/61 Watchdog"
108	depends on MFD_DA9062
109	select WATCHDOG_CORE
110	help
111	  Support for the watchdog in the DA9062 and DA9061 PMICs.
112
113	  This driver can be built as a module. The module name is da9062_wdt.
114
115config GPIO_WATCHDOG
116	tristate "Watchdog device controlled through GPIO-line"
117	depends on OF_GPIO
118	select WATCHDOG_CORE
119	help
120	  If you say yes here you get support for watchdog device
121	  controlled through GPIO-line.
122
123config GPIO_WATCHDOG_ARCH_INITCALL
124	bool "Register the watchdog as early as possible"
125	depends on GPIO_WATCHDOG=y
126	help
127	  In some situations, the default initcall level (module_init)
128	  in not early enough in the boot process to avoid the watchdog
129	  to be triggered.
130	  If you say yes here, the initcall level would be raised to
131	  arch_initcall.
132	  If in doubt, say N.
133
134config MENF21BMC_WATCHDOG
135	tristate "MEN 14F021P00 BMC Watchdog"
136	depends on MFD_MENF21BMC
137	select WATCHDOG_CORE
138	help
139	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
140
141	  This driver can also be built as a module. If so the module
142	  will be called menf21bmc_wdt.
143
144config TANGOX_WATCHDOG
145	tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
146	select WATCHDOG_CORE
147	depends on ARCH_TANGO || COMPILE_TEST
148	depends on HAS_IOMEM
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 WDAT_WDT
156	tristate "ACPI Watchdog Action Table (WDAT)"
157	depends on ACPI
158	select WATCHDOG_CORE
159	select ACPI_WATCHDOG
160	help
161	  This driver adds support for systems with ACPI Watchdog Action
162	  Table (WDAT) table. Servers typically have this but it can be
163	  found on some desktop machines as well. This driver will take
164	  over the native iTCO watchdog driver found on many Intel CPUs.
165
166	  To compile this driver as module, choose M here: the module will
167	  be called wdat_wdt.
168
169config WM831X_WATCHDOG
170	tristate "WM831x watchdog"
171	depends on MFD_WM831X
172	select WATCHDOG_CORE
173	help
174	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
175	  the watchdog triggers the system will be reset.
176
177config WM8350_WATCHDOG
178	tristate "WM8350 watchdog"
179	depends on MFD_WM8350
180	select WATCHDOG_CORE
181	help
182	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
183	  the watchdog triggers the system will be reset.
184
185config XILINX_WATCHDOG
186	tristate "Xilinx Watchdog timer"
187	depends on HAS_IOMEM
188	select WATCHDOG_CORE
189	help
190	  Watchdog driver for the xps_timebase_wdt ip core.
191
192	  To compile this driver as a module, choose M here: the
193	  module will be called of_xilinx_wdt.
194
195config ZIIRAVE_WATCHDOG
196	tristate "Zodiac RAVE Watchdog Timer"
197	depends on I2C
198	select WATCHDOG_CORE
199	help
200	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
201	  Processor.
202
203	  To compile this driver as a module, choose M here: the
204	  module will be called ziirave_wdt.
205
206# ALPHA Architecture
207
208# ARM Architecture
209
210config ARM_SP805_WATCHDOG
211	tristate "ARM SP805 Watchdog"
212	depends on (ARM || ARM64) && ARM_AMBA
213	select WATCHDOG_CORE
214	help
215	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
216	  the timeout is reached.
217
218config ARM_SBSA_WATCHDOG
219	tristate "ARM SBSA Generic Watchdog"
220	depends on ARM64
221	depends on ARM_ARCH_TIMER
222	select WATCHDOG_CORE
223	help
224	  ARM SBSA Generic Watchdog has two stage timeouts:
225	  the first signal (WS0) is for alerting the system by interrupt,
226	  the second one (WS1) is a real hardware reset.
227	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
228
229	  This driver can operate ARM SBSA Generic Watchdog as a single stage
230	  or a two stages watchdog, it depends on the module parameter "action".
231
232	  Note: the maximum timeout in the two stages mode is half of that in
233	  the single stage mode.
234
235	  To compile this driver as module, choose M here: The module
236	  will be called sbsa_gwdt.
237
238config ASM9260_WATCHDOG
239	tristate "Alphascale ASM9260 watchdog"
240	depends on MACH_ASM9260
241	depends on OF
242	select WATCHDOG_CORE
243	select RESET_CONTROLLER
244	help
245	  Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
246	  system when the timeout is reached.
247
248config AT91RM9200_WATCHDOG
249	tristate "AT91RM9200 watchdog"
250	depends on SOC_AT91RM9200 && MFD_SYSCON
251	help
252	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
253	  system when the timeout is reached.
254
255config AT91SAM9X_WATCHDOG
256	tristate "AT91SAM9X / AT91CAP9 watchdog"
257	depends on ARCH_AT91
258	select WATCHDOG_CORE
259	help
260	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
261	  reboot your system when the timeout is reached.
262
263config SAMA5D4_WATCHDOG
264	tristate "Atmel SAMA5D4 Watchdog Timer"
265	depends on ARCH_AT91
266	select WATCHDOG_CORE
267	help
268	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
269	  Its Watchdog Timer Mode Register can be written more than once.
270	  This will reboot your system when the timeout is reached.
271
272config CADENCE_WATCHDOG
273	tristate "Cadence Watchdog Timer"
274	depends on HAS_IOMEM
275	select WATCHDOG_CORE
276	help
277	  Say Y here if you want to include support for the watchdog
278	  timer in the Xilinx Zynq.
279
280config 21285_WATCHDOG
281	tristate "DC21285 watchdog"
282	depends on FOOTBRIDGE
283	help
284	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
285	  here if you wish to use this. Alternatively say M to compile the
286	  driver as a module, which will be called wdt285.
287
288	  This driver does not work on all machines. In particular, early CATS
289	  boards have hardware problems that will cause the machine to simply
290	  lock up if the watchdog fires.
291
292	  "If in doubt, leave it out" - say N.
293
294config 977_WATCHDOG
295	tristate "NetWinder WB83C977 watchdog"
296	depends on FOOTBRIDGE && ARCH_NETWINDER
297	help
298	  Say Y here to include support for the WB977 watchdog included in
299	  NetWinder machines. Alternatively say M to compile the driver as
300	  a module, which will be called wdt977.
301
302	  Not sure? It's safe to say N.
303
304config IXP4XX_WATCHDOG
305	tristate "IXP4xx Watchdog"
306	depends on ARCH_IXP4XX
307	help
308	  Say Y here if to include support for the watchdog timer
309	  in the Intel IXP4xx network processors. This driver can
310	  be built as a module by choosing M. The module will
311	  be called ixp4xx_wdt.
312
313	  Note: The internal IXP4xx watchdog does a soft CPU reset
314	  which doesn't reset any peripherals. There are circumstances
315	  where the watchdog will fail to reset the board correctly
316	  (e.g., if the boot ROM is in an unreadable state).
317
318	  Say N if you are unsure.
319
320config KS8695_WATCHDOG
321	tristate "KS8695 watchdog"
322	depends on ARCH_KS8695
323	help
324	  Watchdog timer embedded into KS8695 processor. This will reboot your
325	  system when the timeout is reached.
326
327config HAVE_S3C2410_WATCHDOG
328	bool
329	help
330	  This will include watchdog timer support for Samsung SoCs. If
331	  you want to include watchdog support for any machine, kindly
332	  select this in the respective mach-XXXX/Kconfig file.
333
334config S3C2410_WATCHDOG
335	tristate "S3C2410 Watchdog"
336	depends on HAVE_S3C2410_WATCHDOG
337	select WATCHDOG_CORE
338	select MFD_SYSCON if ARCH_EXYNOS5
339	help
340	  Watchdog timer block in the Samsung SoCs. This will reboot
341	  the system when the timer expires with the watchdog enabled.
342
343	  The driver is limited by the speed of the system's PCLK
344	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
345	  then watchdog intervals of over approximately 20seconds are
346	  unavailable.
347
348	  The driver can be built as a module by choosing M, and will
349	  be called s3c2410_wdt
350
351config SA1100_WATCHDOG
352	tristate "SA1100/PXA2xx watchdog"
353	depends on ARCH_SA1100 || ARCH_PXA
354	help
355	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
356	  reboot your system when timeout is reached.
357
358	  NOTE: once enabled, this timer cannot be disabled.
359
360	  To compile this driver as a module, choose M here: the
361	  module will be called sa1100_wdt.
362
363config DW_WATCHDOG
364	tristate "Synopsys DesignWare watchdog"
365	depends on HAS_IOMEM
366	select WATCHDOG_CORE
367	help
368	  Say Y here if to include support for the Synopsys DesignWare
369	  watchdog timer found in many chips.
370	  To compile this driver as a module, choose M here: the
371	  module will be called dw_wdt.
372
373config EP93XX_WATCHDOG
374	tristate "EP93xx Watchdog"
375	depends on ARCH_EP93XX
376	select WATCHDOG_CORE
377	help
378	  Say Y here if to include support for the watchdog timer
379	  embedded in the Cirrus Logic EP93xx family of devices.
380
381	  To compile this driver as a module, choose M here: the
382	  module will be called ep93xx_wdt.
383
384config OMAP_WATCHDOG
385	tristate "OMAP Watchdog"
386	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
387	select WATCHDOG_CORE
388	help
389	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
390	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
391
392config PNX4008_WATCHDOG
393	tristate "LPC32XX Watchdog"
394	depends on ARCH_LPC32XX
395	select WATCHDOG_CORE
396	help
397	  Say Y here if to include support for the watchdog timer
398	  in the LPC32XX processor.
399	  This driver can be built as a module by choosing M. The module
400	  will be called pnx4008_wdt.
401
402	  Say N if you are unsure.
403
404config IOP_WATCHDOG
405	tristate "IOP Watchdog"
406	depends on ARCH_IOP13XX
407	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
408	help
409	  Say Y here if to include support for the watchdog timer
410	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
411	  be built as a module by choosing M. The module will
412	  be called iop_wdt.
413
414	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
415	  affect both cores and the peripherals of the IOP.  The ATU-X
416	  and/or ATUe configuration registers will remain intact, but if
417	  operating as an Root Complex and/or Central Resource, the PCI-X
418	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
419
420config DAVINCI_WATCHDOG
421	tristate "DaVinci watchdog"
422	depends on ARCH_DAVINCI || ARCH_KEYSTONE
423	select WATCHDOG_CORE
424	help
425	  Say Y here if to include support for the watchdog timer
426	  in the DaVinci DM644x/DM646x or Keystone processors.
427	  To compile this driver as a module, choose M here: the
428	  module will be called davinci_wdt.
429
430	  NOTE: once enabled, this timer cannot be disabled.
431	  Say N if you are unsure.
432
433config ORION_WATCHDOG
434	tristate "Orion watchdog"
435	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
436	depends on ARM
437	select WATCHDOG_CORE
438	help
439	  Say Y here if to include support for the watchdog timer
440	  in the Marvell Orion5x and Kirkwood ARM SoCs.
441	  To compile this driver as a module, choose M here: the
442	  module will be called orion_wdt.
443
444config RN5T618_WATCHDOG
445	tristate "Ricoh RN5T618 watchdog"
446	depends on MFD_RN5T618
447	select WATCHDOG_CORE
448	help
449	  If you say yes here you get support for watchdog on the Ricoh
450	  RN5T618 PMIC.
451
452	  This driver can also be built as a module.  If so, the module
453	  will be called rn5t618_wdt.
454
455config SUNXI_WATCHDOG
456	tristate "Allwinner SoCs watchdog support"
457	depends on ARCH_SUNXI
458	select WATCHDOG_CORE
459	help
460	  Say Y here to include support for the watchdog timer
461	  in Allwinner SoCs.
462	  To compile this driver as a module, choose M here: the
463	  module will be called sunxi_wdt.
464
465config COH901327_WATCHDOG
466	bool "ST-Ericsson COH 901 327 watchdog"
467	depends on ARCH_U300
468	default y if MACH_U300
469	select WATCHDOG_CORE
470	help
471	  Say Y here to include Watchdog timer support for the
472	  watchdog embedded into the ST-Ericsson U300 series platforms.
473	  This watchdog is used to reset the system and thus cannot be
474	  compiled as a module.
475
476config TWL4030_WATCHDOG
477	tristate "TWL4030 Watchdog"
478	depends on TWL4030_CORE
479	select WATCHDOG_CORE
480	help
481	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
482	  watchdog timer support for TWL4030 chips.
483
484config STMP3XXX_RTC_WATCHDOG
485	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
486	depends on RTC_DRV_STMP
487	select WATCHDOG_CORE
488	help
489	  Say Y here to include support for the watchdog timer inside
490	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
491	  To compile this driver as a module, choose M here: the
492	  module will be called stmp3xxx_rtc_wdt.
493
494config NUC900_WATCHDOG
495	tristate "Nuvoton NUC900 watchdog"
496	depends on ARCH_W90X900
497	help
498	  Say Y here if to include support for the watchdog timer
499	  for the Nuvoton NUC900 series SoCs.
500	  To compile this driver as a module, choose M here: the
501	  module will be called nuc900_wdt.
502
503config TS4800_WATCHDOG
504	tristate "TS-4800 Watchdog"
505	depends on HAS_IOMEM && OF
506	depends on SOC_IMX51 || COMPILE_TEST
507	select WATCHDOG_CORE
508	select MFD_SYSCON
509	help
510	  Technologic Systems TS-4800 has watchdog timer implemented in
511	  an external FPGA. Say Y here if you want to support for the
512	  watchdog timer on TS-4800 board.
513
514config TS72XX_WATCHDOG
515	tristate "TS-72XX SBC Watchdog"
516	depends on MACH_TS72XX
517	help
518	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
519	  watchdog timer implemented in a external CPLD chip. Say Y here
520	  if you want to support for the watchdog timer on TS-72XX boards.
521
522	  To compile this driver as a module, choose M here: the
523	  module will be called ts72xx_wdt.
524
525config MAX63XX_WATCHDOG
526	tristate "Max63xx watchdog"
527	depends on HAS_IOMEM
528	select WATCHDOG_CORE
529	help
530	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
531
532config MAX77620_WATCHDOG
533	tristate "Maxim Max77620 Watchdog Timer"
534	depends on MFD_MAX77620
535	help
536	 This is the driver for the Max77620 watchdog timer.
537	 Say 'Y' here to enable the watchdog timer support for
538	 MAX77620 chips. To compile this driver as a module,
539	 choose M here: the module will be called max77620_wdt.
540
541config IMX2_WDT
542	tristate "IMX2+ Watchdog"
543	depends on ARCH_MXC || ARCH_LAYERSCAPE
544	select REGMAP_MMIO
545	select WATCHDOG_CORE
546	help
547	  This is the driver for the hardware watchdog
548	  on the Freescale IMX2 and later processors.
549	  If you have one of these processors and wish to have
550	  watchdog support enabled, say Y, otherwise say N.
551
552	  To compile this driver as a module, choose M here: the
553	  module will be called imx2_wdt.
554
555config UX500_WATCHDOG
556	tristate "ST-Ericsson Ux500 watchdog"
557	depends on MFD_DB8500_PRCMU
558	select WATCHDOG_CORE
559	default y
560	help
561	  Say Y here to include Watchdog timer support for the watchdog
562	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
563
564	  To compile this driver as a module, choose M here: the
565	  module will be called ux500_wdt.
566
567config RETU_WATCHDOG
568	tristate "Retu watchdog"
569	depends on MFD_RETU
570	select WATCHDOG_CORE
571	help
572	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
573	  N810). At least on N800 the watchdog cannot be disabled, so
574	  this driver is essential and you should enable it.
575
576	  To compile this driver as a module, choose M here: the
577	  module will be called retu_wdt.
578
579config MOXART_WDT
580	tristate "MOXART watchdog"
581	depends on ARCH_MOXART
582	help
583	  Say Y here to include Watchdog timer support for the watchdog
584	  existing on the MOXA ART SoC series platforms.
585
586	  To compile this driver as a module, choose M here: the
587	  module will be called moxart_wdt.
588
589config SIRFSOC_WATCHDOG
590	tristate "SiRFSOC watchdog"
591	depends on ARCH_SIRF
592	select WATCHDOG_CORE
593	default y
594	help
595	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
596	  the watchdog triggers the system will be reset.
597
598config ST_LPC_WATCHDOG
599	tristate "STMicroelectronics LPC Watchdog"
600	depends on ARCH_STI
601	depends on OF
602	select WATCHDOG_CORE
603	help
604	  Say Y here to include STMicroelectronics Low Power Controller
605	  (LPC) based Watchdog timer support.
606
607	  To compile this driver as a module, choose M here: the
608	  module will be called st_lpc_wdt.
609
610config TEGRA_WATCHDOG
611	tristate "Tegra watchdog"
612	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
613	select WATCHDOG_CORE
614	help
615	  Say Y here to include support for the watchdog timer
616	  embedded in NVIDIA Tegra SoCs.
617
618	  To compile this driver as a module, choose M here: the
619	  module will be called tegra_wdt.
620
621config QCOM_WDT
622	tristate "QCOM watchdog"
623	depends on HAS_IOMEM
624	depends on ARCH_QCOM
625	select WATCHDOG_CORE
626	help
627	  Say Y here to include Watchdog timer support for the watchdog found
628	  on QCOM chipsets.  Currently supported targets are the MSM8960,
629	  APQ8064, and IPQ8064.
630
631	  To compile this driver as a module, choose M here: the
632	  module will be called qcom_wdt.
633
634config MESON_GXBB_WATCHDOG
635	tristate "Amlogic Meson GXBB SoCs watchdog support"
636	depends on ARCH_MESON
637	select WATCHDOG_CORE
638	help
639	  Say Y here to include support for the watchdog timer
640	  in Amlogic Meson GXBB SoCs.
641	  To compile this driver as a module, choose M here: the
642	  module will be called meson_gxbb_wdt.
643
644config MESON_WATCHDOG
645	tristate "Amlogic Meson SoCs watchdog support"
646	depends on ARCH_MESON
647	select WATCHDOG_CORE
648	help
649	  Say Y here to include support for the watchdog timer
650	  in Amlogic Meson SoCs.
651	  To compile this driver as a module, choose M here: the
652	  module will be called meson_wdt.
653
654config MEDIATEK_WATCHDOG
655	tristate "Mediatek SoCs watchdog support"
656	depends on ARCH_MEDIATEK
657	select WATCHDOG_CORE
658	help
659	  Say Y here to include support for the watchdog timer
660	  in Mediatek SoCs.
661	  To compile this driver as a module, choose M here: the
662	  module will be called mtk_wdt.
663
664config DIGICOLOR_WATCHDOG
665	tristate "Conexant Digicolor SoCs watchdog support"
666	depends on ARCH_DIGICOLOR
667	select WATCHDOG_CORE
668	help
669	  Say Y here to include support for the watchdog timer
670	  in Conexant Digicolor SoCs.
671	  To compile this driver as a module, choose M here: the
672	  module will be called digicolor_wdt.
673
674config LPC18XX_WATCHDOG
675	tristate "LPC18xx/43xx Watchdog"
676	depends on ARCH_LPC18XX || COMPILE_TEST
677	depends on HAS_IOMEM
678	select WATCHDOG_CORE
679	help
680	  Say Y here if to include support for the watchdog timer
681	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
682	  processors.
683	  To compile this driver as a module, choose M here: the
684	  module will be called lpc18xx_wdt.
685
686config ATLAS7_WATCHDOG
687	tristate "CSRatlas7 watchdog"
688	depends on ARCH_ATLAS7
689	help
690	  Say Y here to include Watchdog timer support for the watchdog
691	  existing on the CSRatlas7 series platforms.
692
693	  To compile this driver as a module, choose M here: the
694	  module will be called atlas7_wdt.
695
696config RENESAS_WDT
697	tristate "Renesas WDT Watchdog"
698	depends on ARCH_RENESAS || COMPILE_TEST
699	select WATCHDOG_CORE
700	help
701	  This driver adds watchdog support for the integrated watchdogs in the
702	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
703
704config ASPEED_WATCHDOG
705	tristate "Aspeed 2400 watchdog support"
706	depends on ARCH_ASPEED || COMPILE_TEST
707	select WATCHDOG_CORE
708	help
709	  Say Y here to include support for the watchdog timer
710	  in Apseed BMC SoCs.
711
712	  This driver is required to reboot the SoC.
713
714	  To compile this driver as a module, choose M here: the
715	  module will be called aspeed_wdt.
716
717# AVR32 Architecture
718
719config AT32AP700X_WDT
720	tristate "AT32AP700x watchdog"
721	depends on CPU_AT32AP700X
722	help
723	  Watchdog timer embedded into AT32AP700x devices. This will reboot
724	  your system when the timeout is reached.
725
726# BLACKFIN Architecture
727
728config BFIN_WDT
729	tristate "Blackfin On-Chip Watchdog Timer"
730	depends on BLACKFIN
731	---help---
732	  If you say yes here you will get support for the Blackfin On-Chip
733	  Watchdog Timer. If you have one of these processors and wish to
734	  have watchdog support enabled, say Y, otherwise say N.
735
736	  To compile this driver as a module, choose M here: the
737	  module will be called bfin_wdt.
738
739# CRIS Architecture
740
741# FRV Architecture
742
743# X86 (i386 + ia64 + x86_64) Architecture
744
745config ACQUIRE_WDT
746	tristate "Acquire SBC Watchdog Timer"
747	depends on X86
748	---help---
749	  This is the driver for the hardware watchdog on Single Board
750	  Computers produced by Acquire Inc (and others). This watchdog
751	  simply watches your kernel to make sure it doesn't freeze, and if
752	  it does, it reboots your computer after a certain amount of time.
753
754	  To compile this driver as a module, choose M here: the
755	  module will be called acquirewdt.
756
757	  Most people will say N.
758
759config ADVANTECH_WDT
760	tristate "Advantech SBC Watchdog Timer"
761	depends on X86
762	help
763	  If you are configuring a Linux kernel for the Advantech single-board
764	  computer, say `Y' here to support its built-in watchdog timer
765	  feature. More information can be found at
766	  <http://www.advantech.com.tw/products/>
767
768config ALIM1535_WDT
769	tristate "ALi M1535 PMU Watchdog Timer"
770	depends on X86 && PCI
771	---help---
772	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
773
774	  To compile this driver as a module, choose M here: the
775	  module will be called alim1535_wdt.
776
777	  Most people will say N.
778
779config ALIM7101_WDT
780	tristate "ALi M7101 PMU Computer Watchdog"
781	depends on PCI
782	help
783	  This is the driver for the hardware watchdog on the ALi M7101 PMU
784	  as used in the x86 Cobalt servers and also found in some
785	  SPARC Netra servers too.
786
787	  To compile this driver as a module, choose M here: the
788	  module will be called alim7101_wdt.
789
790	  Most people will say N.
791
792config EBC_C384_WDT
793	tristate "WinSystems EBC-C384 Watchdog Timer"
794	depends on X86 && ISA_BUS_API
795	select WATCHDOG_CORE
796	help
797	  Enables watchdog timer support for the watchdog timer on the
798	  WinSystems EBC-C384 motherboard. The timeout may be configured via
799	  the timeout module parameter.
800
801config F71808E_WDT
802	tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
803	depends on X86
804	help
805	  This is the driver for the hardware watchdog on the Fintek
806	  F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
807
808	  You can compile this driver directly into the kernel, or use
809	  it as a module.  The module will be called f71808e_wdt.
810
811config SP5100_TCO
812	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
813	depends on X86 && PCI
814	---help---
815	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
816	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
817	  the machine after its expiration. The expiration time can be
818	  configured with the "heartbeat" parameter.
819
820	  To compile this driver as a module, choose M here: the
821	  module will be called sp5100_tco.
822
823config GEODE_WDT
824	tristate "AMD Geode CS5535/CS5536 Watchdog"
825	depends on CS5535_MFGPT
826	help
827	  This driver enables a watchdog capability built into the
828	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
829	  processors.  This watchdog watches your kernel to make sure
830	  it doesn't freeze, and if it does, it reboots your computer after
831	  a certain amount of time.
832
833	  You can compile this driver directly into the kernel, or use
834	  it as a module.  The module will be called geodewdt.
835
836config SC520_WDT
837	tristate "AMD Elan SC520 processor Watchdog"
838	depends on MELAN
839	help
840	  This is the driver for the hardware watchdog built in to the
841	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
842	  This watchdog simply watches your kernel to make sure it doesn't
843	  freeze, and if it does, it reboots your computer after a certain
844	  amount of time.
845
846	  You can compile this driver directly into the kernel, or use
847	  it as a module.  The module will be called sc520_wdt.
848
849config SBC_FITPC2_WATCHDOG
850	tristate "Compulab SBC-FITPC2 watchdog"
851	depends on X86
852	---help---
853	  This is the driver for the built-in watchdog timer on the fit-PC2,
854	  fit-PC2i, CM-iAM single-board computers made by Compulab.
855
856	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
857	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
858
859	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
860	  so system will not be restarted while user in BIOS setup.
861
862	  Once watchdog was enabled the system will be restarted every
863	  "Watchdog Timer Value" period, so to prevent it user can restart or
864	  disable the watchdog.
865
866	  To compile this driver as a module, choose M here: the
867	  module will be called sbc_fitpc2_wdt.
868
869	  Most people will say N.
870
871config EUROTECH_WDT
872	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
873	depends on X86
874	help
875	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
876	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
877	  information are at <http://www.eurotech.it/>.
878
879config IB700_WDT
880	tristate "IB700 SBC Watchdog Timer"
881	depends on X86
882	---help---
883	  This is the driver for the hardware watchdog on the IB700 Single
884	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
885	  simply watches your kernel to make sure it doesn't freeze, and if
886	  it does, it reboots your computer after a certain amount of time.
887
888	  This driver is like the WDT501 driver but for slightly different hardware.
889
890	  To compile this driver as a module, choose M here: the
891	  module will be called ib700wdt.
892
893	  Most people will say N.
894
895config IBMASR
896	tristate "IBM Automatic Server Restart"
897	depends on X86
898	help
899	  This is the driver for the IBM Automatic Server Restart watchdog
900	  timer built-in into some eServer xSeries machines.
901
902	  To compile this driver as a module, choose M here: the
903	  module will be called ibmasr.
904
905config WAFER_WDT
906	tristate "ICP Single Board Computer Watchdog Timer"
907	depends on X86
908	help
909	  This is a driver for the hardware watchdog on the ICP Single
910	  Board Computer. This driver is working on (at least) the following
911	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
912
913	  To compile this driver as a module, choose M here: the
914	  module will be called wafer5823wdt.
915
916config I6300ESB_WDT
917	tristate "Intel 6300ESB Timer/Watchdog"
918	depends on PCI
919	---help---
920	  Hardware driver for the watchdog timer built into the Intel
921	  6300ESB controller hub.
922
923	  To compile this driver as a module, choose M here: the
924	  module will be called i6300esb.
925
926config IE6XX_WDT
927	tristate "Intel Atom E6xx Watchdog"
928	depends on X86 && PCI
929	select WATCHDOG_CORE
930	select MFD_CORE
931	select LPC_SCH
932	---help---
933	  Hardware driver for the watchdog timer built into the Intel
934	  Atom E6XX (TunnelCreek) processor.
935
936	  To compile this driver as a module, choose M here: the
937	  module will be called ie6xx_wdt.
938
939config INTEL_SCU_WATCHDOG
940	bool "Intel SCU Watchdog for Mobile Platforms"
941	depends on X86_INTEL_MID
942	---help---
943	  Hardware driver for the watchdog time built into the Intel SCU
944	  for Intel Mobile Platforms.
945
946	  To compile this driver as a module, choose M here.
947
948config INTEL_MID_WATCHDOG
949	tristate "Intel MID Watchdog Timer"
950	depends on X86_INTEL_MID
951	select WATCHDOG_CORE
952	---help---
953	  Watchdog timer driver built into the Intel SCU for Intel MID
954	  Platforms.
955
956	  This driver currently supports only the watchdog evolution
957	  implementation in SCU, available for Merrifield generation.
958
959	  To compile this driver as a module, choose M here.
960
961config ITCO_WDT
962	tristate "Intel TCO Timer/Watchdog"
963	depends on (X86 || IA64) && PCI
964	select WATCHDOG_CORE
965	depends on I2C || I2C=n
966	select LPC_ICH if !EXPERT
967	select I2C_I801 if !EXPERT && I2C
968	---help---
969	  Hardware driver for the intel TCO timer based watchdog devices.
970	  These drivers are included in the Intel 82801 I/O Controller
971	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
972	  controller hub.
973
974	  The TCO (Total Cost of Ownership) timer is a watchdog timer
975	  that will reboot the machine after its second expiration. The
976	  expiration time can be configured with the "heartbeat" parameter.
977
978	  On some motherboards the driver may fail to reset the chipset's
979	  NO_REBOOT flag which prevents the watchdog from rebooting the
980	  machine. If this is the case you will get a kernel message like
981	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
982
983	  To compile this driver as a module, choose M here: the
984	  module will be called iTCO_wdt.
985
986config ITCO_VENDOR_SUPPORT
987	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
988	depends on ITCO_WDT
989	---help---
990	  Add vendor specific support to the intel TCO timer based watchdog
991	  devices. At this moment we only have additional support for some
992	  SuperMicro Inc. motherboards.
993
994config IT8712F_WDT
995	tristate "IT8712F (Smart Guardian) Watchdog Timer"
996	depends on X86
997	---help---
998	  This is the driver for the built-in watchdog timer on the IT8712F
999	  Super I/0 chipset used on many motherboards.
1000
1001	  If the driver does not work, then make sure that the game port in
1002	  the BIOS is enabled.
1003
1004	  To compile this driver as a module, choose M here: the
1005	  module will be called it8712f_wdt.
1006
1007config IT87_WDT
1008	tristate "IT87 Watchdog Timer"
1009	depends on X86
1010	---help---
1011	  This is the driver for the hardware watchdog on the ITE IT8620,
1012	  IT8702, IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
1013	  Super I/O chips.
1014
1015	  If the driver does not work, then make sure that the game port in
1016	  the BIOS is enabled.
1017
1018	  This watchdog simply watches your kernel to make sure it doesn't
1019	  freeze, and if it does, it reboots your computer after a certain
1020	  amount of time.
1021
1022	  To compile this driver as a module, choose M here: the module will
1023	  be called it87_wdt.
1024
1025config HP_WATCHDOG
1026	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1027	depends on X86 && PCI
1028	help
1029	  A software monitoring watchdog and NMI sourcing driver. This driver
1030	  will detect lockups and provide a stack trace. This is a driver that
1031	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1032	  To compile this driver as a module, choose M here: the module will be
1033	  called hpwdt.
1034
1035config KEMPLD_WDT
1036	tristate "Kontron COM Watchdog Timer"
1037	depends on MFD_KEMPLD
1038	select WATCHDOG_CORE
1039	help
1040	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1041	  (ETXexpress) modules
1042
1043	  This driver can also be built as a module. If so, the module will be
1044	  called kempld_wdt.
1045
1046config HPWDT_NMI_DECODING
1047	bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1048	depends on HP_WATCHDOG
1049	default y
1050	help
1051	  When an NMI occurs this feature will make the necessary BIOS calls to
1052	  log the cause of the NMI.
1053
1054config SC1200_WDT
1055	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1056	depends on X86
1057	help
1058	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1059	  watchdog cards as found on the SC1200. This watchdog is mainly used
1060	  for power management purposes and can be used to power down the device
1061	  during inactivity periods (includes interrupt activity monitoring).
1062
1063	  To compile this driver as a module, choose M here: the
1064	  module will be called sc1200wdt.
1065
1066	  Most people will say N.
1067
1068config SCx200_WDT
1069	tristate "National Semiconductor SCx200 Watchdog"
1070	depends on SCx200 && PCI
1071	help
1072	  Enable the built-in watchdog timer support on the National
1073	  Semiconductor SCx200 processors.
1074
1075	  If compiled as a module, it will be called scx200_wdt.
1076
1077config PC87413_WDT
1078	tristate "NS PC87413 watchdog"
1079	depends on X86
1080	---help---
1081	  This is the driver for the hardware watchdog on the PC87413 chipset
1082	  This watchdog simply watches your kernel to make sure it doesn't
1083	  freeze, and if it does, it reboots your computer after a certain
1084	  amount of time.
1085
1086	  To compile this driver as a module, choose M here: the
1087	  module will be called pc87413_wdt.
1088
1089	  Most people will say N.
1090
1091config NV_TCO
1092	tristate "nVidia TCO Timer/Watchdog"
1093	depends on X86 && PCI
1094	---help---
1095	  Hardware driver for the TCO timer built into the nVidia Hub family
1096	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1097	  watchdog timer that will reboot the machine after its second
1098	  expiration. The expiration time can be configured with the
1099	  "heartbeat" parameter.
1100
1101	  On some motherboards the driver may fail to reset the chipset's
1102	  NO_REBOOT flag which prevents the watchdog from rebooting the
1103	  machine. If this is the case you will get a kernel message like
1104	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1105
1106	  To compile this driver as a module, choose M here: the
1107	  module will be called nv_tco.
1108
1109config RDC321X_WDT
1110	tristate "RDC R-321x SoC watchdog"
1111	depends on X86_RDC321X
1112	help
1113	  This is the driver for the built in hardware watchdog
1114	  in the RDC R-321x SoC.
1115
1116	  To compile this driver as a module, choose M here: the
1117	  module will be called rdc321x_wdt.
1118
1119config 60XX_WDT
1120	tristate "SBC-60XX Watchdog Timer"
1121	depends on X86
1122	help
1123	  This driver can be used with the watchdog timer found on some
1124	  single board computers, namely the 6010 PII based computer.
1125	  It may well work with other cards.  It reads port 0x443 to enable
1126	  and re-set the watchdog timer, and reads port 0x45 to disable
1127	  the watchdog.  If you have a card that behave in similar ways,
1128	  you can probably make this driver work with your card as well.
1129
1130	  You can compile this driver directly into the kernel, or use
1131	  it as a module.  The module will be called sbc60xxwdt.
1132
1133config SBC8360_WDT
1134	tristate "SBC8360 Watchdog Timer"
1135	depends on X86_32
1136	---help---
1137
1138	  This is the driver for the hardware watchdog on the SBC8360 Single
1139	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1140
1141	  To compile this driver as a module, choose M here: the
1142	  module will be called sbc8360.
1143
1144	  Most people will say N.
1145
1146config SBC7240_WDT
1147	tristate "SBC Nano 7240 Watchdog Timer"
1148	depends on X86_32 && !UML
1149	---help---
1150	  This is the driver for the hardware watchdog found on the IEI
1151	  single board computers EPIC Nano 7240 (and likely others). This
1152	  watchdog simply watches your kernel to make sure it doesn't freeze,
1153	  and if it does, it reboots your computer after a certain amount of
1154	  time.
1155
1156	  To compile this driver as a module, choose M here: the
1157	  module will be called sbc7240_wdt.
1158
1159config CPU5_WDT
1160	tristate "SMA CPU5 Watchdog"
1161	depends on X86
1162	---help---
1163	  TBD.
1164	  To compile this driver as a module, choose M here: the
1165	  module will be called cpu5wdt.
1166
1167config SMSC_SCH311X_WDT
1168	tristate "SMSC SCH311X Watchdog Timer"
1169	depends on X86
1170	---help---
1171	  This is the driver for the hardware watchdog timer on the
1172	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1173	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1174	  serial ports).
1175
1176	  To compile this driver as a module, choose M here: the
1177	  module will be called sch311x_wdt.
1178
1179config SMSC37B787_WDT
1180	tristate "Winbond SMsC37B787 Watchdog Timer"
1181	depends on X86
1182	---help---
1183	  This is the driver for the hardware watchdog component on the
1184	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1185	  from Vision Systems and maybe others.
1186
1187	  This watchdog simply watches your kernel to make sure it doesn't
1188	  freeze, and if it does, it reboots your computer after a certain
1189	  amount of time.
1190
1191	  Usually a userspace daemon will notify the kernel WDT driver that
1192	  userspace is still alive, at regular intervals.
1193
1194	  To compile this driver as a module, choose M here: the
1195	  module will be called smsc37b787_wdt.
1196
1197	  Most people will say N.
1198
1199config VIA_WDT
1200	tristate "VIA Watchdog Timer"
1201	depends on X86 && PCI
1202	select WATCHDOG_CORE
1203	---help---
1204	This is the driver for the hardware watchdog timer on VIA
1205	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1206
1207	To compile this driver as a module, choose M here; the module
1208	will be called via_wdt.
1209
1210	Most people will say N.
1211
1212config W83627HF_WDT
1213	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1214	depends on X86
1215	select WATCHDOG_CORE
1216	---help---
1217	  This is the driver for the hardware watchdog on the following
1218	  Super I/O chips.
1219		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1220		W83637HF
1221		W83667HG/HG-B
1222		W83687THF
1223		W83697HF
1224		W83697UG
1225		NCT6775
1226		NCT6776
1227		NCT6779
1228		NCT6791
1229		NCT6792
1230		NCT6102D/04D/06D
1231
1232	  This watchdog simply watches your kernel to make sure it doesn't
1233	  freeze, and if it does, it reboots your computer after a certain
1234	  amount of time.
1235
1236	  To compile this driver as a module, choose M here: the
1237	  module will be called w83627hf_wdt.
1238
1239	  Most people will say N.
1240
1241config W83877F_WDT
1242	tristate "W83877F (EMACS) Watchdog Timer"
1243	depends on X86
1244	---help---
1245	  This is the driver for the hardware watchdog on the W83877F chipset
1246	  as used in EMACS PC-104 motherboards (and likely others).  This
1247	  watchdog simply watches your kernel to make sure it doesn't freeze,
1248	  and if it does, it reboots your computer after a certain amount of
1249	  time.
1250
1251	  To compile this driver as a module, choose M here: the
1252	  module will be called w83877f_wdt.
1253
1254	  Most people will say N.
1255
1256config W83977F_WDT
1257	tristate "W83977F (PCM-5335) Watchdog Timer"
1258	depends on X86
1259	---help---
1260	  This is the driver for the hardware watchdog on the W83977F I/O chip
1261	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1262	  watchdog simply watches your kernel to make sure it doesn't freeze,
1263	  and if it does, it reboots your computer after a certain amount of
1264	  time.
1265
1266	  To compile this driver as a module, choose M here: the
1267	  module will be called w83977f_wdt.
1268
1269config MACHZ_WDT
1270	tristate "ZF MachZ Watchdog"
1271	depends on X86
1272	---help---
1273	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1274	  N.  This is the driver for the watchdog timer built-in on that
1275	  processor using ZF-Logic interface.  This watchdog simply watches
1276	  your kernel to make sure it doesn't freeze, and if it does, it
1277	  reboots your computer after a certain amount of time.
1278
1279	  To compile this driver as a module, choose M here: the
1280	  module will be called machzwd.
1281
1282config SBC_EPX_C3_WATCHDOG
1283	tristate "Winsystems SBC EPX-C3 watchdog"
1284	depends on X86
1285	---help---
1286	  This is the driver for the built-in watchdog timer on the EPX-C3
1287	  Single-board computer made by Winsystems, Inc.
1288
1289	  *Note*: This hardware watchdog is not probeable and thus there
1290	  is no way to know if writing to its IO address will corrupt
1291	  your system or have any real effect.  The only way to be sure
1292	  that this driver does what you want is to make sure you
1293	  are running it on an EPX-C3 from Winsystems with the watchdog
1294	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1295	  IO ports.  Basically, the assumption is made that if you compile
1296	  this driver into your kernel and/or load it as a module, that you
1297	  know what you are doing and that you are in fact running on an
1298	  EPX-C3 board!
1299
1300	  To compile this driver as a module, choose M here: the
1301	  module will be called sbc_epx_c3.
1302
1303config INTEL_MEI_WDT
1304	tristate "Intel MEI iAMT Watchdog"
1305	depends on INTEL_MEI && X86
1306	select WATCHDOG_CORE
1307	---help---
1308	  A device driver for the Intel MEI iAMT watchdog.
1309
1310	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1311	  Whenever the OS hangs or crashes, iAMT will send an event
1312	  to any subscriber to this event. The watchdog doesn't reset the
1313	  the platform.
1314
1315	  To compile this driver as a module, choose M here:
1316	  the module will be called mei_wdt.
1317
1318config NI903X_WDT
1319	tristate "NI 903x/913x Watchdog"
1320	depends on X86 && ACPI
1321	select WATCHDOG_CORE
1322	---help---
1323	  This is the driver for the watchdog timer on the National Instruments
1324	  903x/913x real-time controllers.
1325
1326	  To compile this driver as a module, choose M here: the module will be
1327	  called ni903x_wdt.
1328
1329# M32R Architecture
1330
1331# M68K Architecture
1332
1333config M54xx_WATCHDOG
1334	tristate "MCF54xx watchdog support"
1335	depends on M548x
1336	help
1337	  To compile this driver as a module, choose M here: the
1338	  module will be called m54xx_wdt.
1339
1340# MicroBlaze Architecture
1341
1342# MIPS Architecture
1343
1344config ATH79_WDT
1345	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1346	depends on ATH79
1347	help
1348	  Hardware driver for the built-in watchdog timer on the Atheros
1349	  AR71XX/AR724X/AR913X SoCs.
1350
1351config BCM47XX_WDT
1352	tristate "Broadcom BCM47xx Watchdog Timer"
1353	depends on BCM47XX || ARCH_BCM_5301X
1354	select WATCHDOG_CORE
1355	help
1356	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1357
1358config RC32434_WDT
1359	tristate "IDT RC32434 SoC Watchdog Timer"
1360	depends on MIKROTIK_RB532
1361	help
1362	  Hardware driver for the IDT RC32434 SoC built-in
1363	  watchdog timer.
1364
1365	  To compile this driver as a module, choose M here: the
1366	  module will be called rc32434_wdt.
1367
1368config INDYDOG
1369	tristate "Indy/I2 Hardware Watchdog"
1370	depends on SGI_HAS_INDYDOG
1371	help
1372	  Hardware driver for the Indy's/I2's watchdog. This is a
1373	  watchdog timer that will reboot the machine after a 60 second
1374	  timer expired and no process has written to /dev/watchdog during
1375	  that time.
1376
1377config JZ4740_WDT
1378	tristate "Ingenic jz4740 SoC hardware watchdog"
1379	depends on MACH_JZ4740
1380	select WATCHDOG_CORE
1381	help
1382	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1383
1384config WDT_MTX1
1385	tristate "MTX-1 Hardware Watchdog"
1386	depends on MIPS_MTX1
1387	help
1388	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1389	  will reboot the machine after a 100 seconds timer expired.
1390
1391config PNX833X_WDT
1392	tristate "PNX833x Hardware Watchdog"
1393	depends on SOC_PNX8335
1394	help
1395	  Hardware driver for the PNX833x's watchdog. This is a
1396	  watchdog timer that will reboot the machine after a programmable
1397	  timer has expired and no process has written to /dev/watchdog during
1398	  that time.
1399
1400config SIBYTE_WDOG
1401	tristate "Sibyte SoC hardware watchdog"
1402	depends on CPU_SB1
1403	help
1404	  Watchdog driver for the built in watchdog hardware in Sibyte
1405	  SoC processors.  There are apparently two watchdog timers
1406	  on such processors; this driver supports only the first one,
1407	  because currently Linux only supports exporting one watchdog
1408	  to userspace.
1409
1410	  To compile this driver as a loadable module, choose M here.
1411	  The module will be called sb_wdog.
1412
1413config AR7_WDT
1414	tristate "TI AR7 Watchdog Timer"
1415	depends on AR7
1416	help
1417	  Hardware driver for the TI AR7 Watchdog Timer.
1418
1419config TXX9_WDT
1420	tristate "Toshiba TXx9 Watchdog Timer"
1421	depends on CPU_TX39XX || CPU_TX49XX
1422	select WATCHDOG_CORE
1423	help
1424	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1425
1426config OCTEON_WDT
1427	tristate "Cavium OCTEON SOC family Watchdog Timer"
1428	depends on CAVIUM_OCTEON_SOC
1429	default y
1430	select WATCHDOG_CORE
1431	select EXPORT_UASM if OCTEON_WDT = m
1432	help
1433	  Hardware driver for OCTEON's on chip watchdog timer.
1434	  Enables the watchdog for all cores running Linux. It
1435	  installs a NMI handler and pokes the watchdog based on an
1436	  interrupt.  On first expiration of the watchdog, the
1437	  interrupt handler pokes it.  The second expiration causes an
1438	  NMI that prints a message. The third expiration causes a
1439	  global soft reset.
1440
1441	  When userspace has /dev/watchdog open, no poking is done
1442	  from the first interrupt, it is then only poked when the
1443	  device is written.
1444
1445config BCM63XX_WDT
1446	tristate "Broadcom BCM63xx hardware watchdog"
1447	depends on BCM63XX
1448	help
1449	  Watchdog driver for the built in watchdog hardware in Broadcom
1450	  BCM63xx SoC.
1451
1452	  To compile this driver as a loadable module, choose M here.
1453	  The module will be called bcm63xx_wdt.
1454
1455config BCM2835_WDT
1456	tristate "Broadcom BCM2835 hardware watchdog"
1457	depends on ARCH_BCM2835
1458	select WATCHDOG_CORE
1459	help
1460	  Watchdog driver for the built in watchdog hardware in Broadcom
1461	  BCM2835 SoC.
1462
1463	  To compile this driver as a loadable module, choose M here.
1464	  The module will be called bcm2835_wdt.
1465
1466config BCM_KONA_WDT
1467	tristate "BCM Kona Watchdog"
1468	depends on ARCH_BCM_MOBILE
1469	select WATCHDOG_CORE
1470	help
1471	  Support for the watchdog timer on the following Broadcom BCM281xx
1472	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1473	  BCM28155 variants.
1474
1475	  Say 'Y' or 'M' here to enable the driver. The module will be called
1476	  bcm_kona_wdt.
1477
1478config BCM_KONA_WDT_DEBUG
1479	bool "DEBUGFS support for BCM Kona Watchdog"
1480	depends on BCM_KONA_WDT
1481	help
1482	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1483	  access to the driver's internal data structures as well as watchdog
1484	  timer hardware registres.
1485
1486	  If in doubt, say 'N'.
1487
1488config BCM7038_WDT
1489	tristate "BCM7038 Watchdog"
1490	select WATCHDOG_CORE
1491	depends on HAS_IOMEM
1492	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1493	help
1494	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1495	 later SoCs used in set-top boxes.  BCM7038 was made public
1496	 during the 2004 CES, and since then, many Broadcom chips use this
1497	 watchdog block, including some cable modem chips.
1498
1499config IMGPDC_WDT
1500	tristate "Imagination Technologies PDC Watchdog Timer"
1501	depends on HAS_IOMEM
1502	depends on METAG || MIPS || COMPILE_TEST
1503	select WATCHDOG_CORE
1504	help
1505	  Driver for Imagination Technologies PowerDown Controller
1506	  Watchdog Timer.
1507
1508	  To compile this driver as a loadable module, choose M here.
1509	  The module will be called imgpdc_wdt.
1510
1511config LANTIQ_WDT
1512	tristate "Lantiq SoC watchdog"
1513	depends on LANTIQ
1514	help
1515	  Hardware driver for the Lantiq SoC Watchdog Timer.
1516
1517config LOONGSON1_WDT
1518	tristate "Loongson1 SoC hardware watchdog"
1519	depends on MACH_LOONGSON32
1520	select WATCHDOG_CORE
1521	help
1522	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1523
1524config RALINK_WDT
1525	tristate "Ralink SoC watchdog"
1526	select WATCHDOG_CORE
1527	depends on RALINK
1528	help
1529	  Hardware driver for the Ralink SoC Watchdog Timer.
1530
1531config MT7621_WDT
1532	tristate "Mediatek SoC watchdog"
1533	select WATCHDOG_CORE
1534	depends on SOC_MT7620 || SOC_MT7621
1535	help
1536	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1537
1538config PIC32_WDT
1539	tristate "Microchip PIC32 hardware watchdog"
1540	select WATCHDOG_CORE
1541	depends on MACH_PIC32
1542	help
1543	  Watchdog driver for the built in watchdog hardware in a PIC32.
1544
1545	  Configuration bits must be set appropriately for the watchdog to be
1546	  controlled by this driver.
1547
1548	  To compile this driver as a loadable module, choose M here.
1549	  The module will be called pic32-wdt.
1550
1551config PIC32_DMT
1552	tristate "Microchip PIC32 Deadman Timer"
1553	select WATCHDOG_CORE
1554	depends on MACH_PIC32
1555	help
1556	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1557	  timer is typically be used in misson critical and safety critical
1558	  applications, where any single failure of the software functionality
1559	  and sequencing must be detected.
1560
1561	  To compile this driver as a loadable module, choose M here.
1562	  The module will be called pic32-dmt.
1563
1564# PARISC Architecture
1565
1566# POWERPC Architecture
1567
1568config GEF_WDT
1569	tristate "GE Watchdog Timer"
1570	depends on GE_FPGA
1571	---help---
1572	  Watchdog timer found in a number of GE single board computers.
1573
1574config MPC5200_WDT
1575	bool "MPC52xx Watchdog Timer"
1576	depends on PPC_MPC52xx
1577	help
1578	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1579
1580config 8xxx_WDT
1581	tristate "MPC8xxx Platform Watchdog Timer"
1582	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1583	select WATCHDOG_CORE
1584	help
1585	  This driver is for a SoC level watchdog that exists on some
1586	  Freescale PowerPC processors. So far this driver supports:
1587	  - MPC8xx watchdogs
1588	  - MPC83xx watchdogs
1589	  - MPC86xx watchdogs
1590
1591	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1592
1593config MV64X60_WDT
1594	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1595	depends on MV64X60
1596
1597config PIKA_WDT
1598	tristate "PIKA FPGA Watchdog"
1599	depends on WARP
1600	default y
1601	help
1602	  This enables the watchdog in the PIKA FPGA. Currently used on
1603	  the Warp platform.
1604
1605config BOOKE_WDT
1606	tristate "PowerPC Book-E Watchdog Timer"
1607	depends on BOOKE || 4xx
1608	select WATCHDOG_CORE
1609	---help---
1610	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1611	  MPC85xx SOCs and the IBM PowerPC 440.
1612
1613	  Please see Documentation/watchdog/watchdog-api.txt for
1614	  more information.
1615
1616config BOOKE_WDT_DEFAULT_TIMEOUT
1617	int "PowerPC Book-E Watchdog Timer Default Timeout"
1618	depends on BOOKE_WDT
1619	default 38 if PPC_FSL_BOOK3E
1620	range 0 63 if PPC_FSL_BOOK3E
1621	default 3 if !PPC_FSL_BOOK3E
1622	range 0 3 if !PPC_FSL_BOOK3E
1623	help
1624	  Select the default watchdog timer period to be used by the PowerPC
1625	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1626	  position represented by this number transitions from zero to one.
1627
1628	  For Freescale Book-E processors, this is a number between 0 and 63.
1629	  For other Book-E processors, this is a number between 0 and 3.
1630
1631	  The value can be overridden by the wdt_period command-line parameter.
1632
1633config MEN_A21_WDT
1634	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1635	select WATCHDOG_CORE
1636	depends on GPIOLIB || COMPILE_TEST
1637	help
1638	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1639
1640	  The driver can also be built as a module. If so, the module will be
1641	  called mena21_wdt.
1642
1643	  If unsure select N here.
1644
1645# PPC64 Architecture
1646
1647config WATCHDOG_RTAS
1648	tristate "RTAS watchdog"
1649	depends on PPC_RTAS
1650	help
1651	  This driver adds watchdog support for the RTAS watchdog.
1652
1653	  To compile this driver as a module, choose M here. The module
1654	  will be called wdrtas.
1655
1656# S390 Architecture
1657
1658config DIAG288_WATCHDOG
1659	tristate "System z diag288 Watchdog"
1660	depends on S390
1661	select WATCHDOG_CORE
1662	help
1663	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1664	  provide a virtual watchdog timer to their guest that cause a
1665	  user define Control Program command to be executed after a
1666	  timeout.
1667	  LPAR provides a very similar interface. This driver handles
1668	  both.
1669
1670	  To compile this driver as a module, choose M here. The module
1671	  will be called diag288_wdt.
1672
1673# SUPERH (sh + sh64) Architecture
1674
1675config SH_WDT
1676	tristate "SuperH Watchdog"
1677	depends on SUPERH && (CPU_SH3 || CPU_SH4)
1678	select WATCHDOG_CORE
1679	help
1680	  This driver adds watchdog support for the integrated watchdog in the
1681	  SuperH processors. If you have one of these processors and wish
1682	  to have watchdog support enabled, say Y, otherwise say N.
1683
1684	  As a side note, saying Y here will automatically boost HZ to 1000
1685	  so that the timer has a chance to clear the overflow counter. On
1686	  slower systems (such as the SH-2 and SH-3) this will likely yield
1687	  some performance issues. As such, the WDT should be avoided here
1688	  unless it is absolutely necessary.
1689
1690	  To compile this driver as a module, choose M here: the
1691	  module will be called shwdt.
1692
1693# SPARC Architecture
1694
1695# SPARC64 Architecture
1696
1697config WATCHDOG_CP1XXX
1698	tristate "CP1XXX Hardware Watchdog support"
1699	depends on SPARC64 && PCI
1700	---help---
1701	  This is the driver for the hardware watchdog timers present on
1702	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1703
1704	  To compile this driver as a module, choose M here: the
1705	  module will be called cpwatchdog.
1706
1707	  If you do not have a CompactPCI model CP1400 or CP1500, or
1708	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1709	  you should say N to this option.
1710
1711config WATCHDOG_RIO
1712	tristate "RIO Hardware Watchdog support"
1713	depends on SPARC64 && PCI
1714	help
1715	  Say Y here to support the hardware watchdog capability on Sun RIO
1716	  machines.  The watchdog timeout period is normally one minute but
1717	  can be changed with a boot-time parameter.
1718
1719config WATCHDOG_SUN4V
1720	tristate "Sun4v Watchdog support"
1721	select WATCHDOG_CORE
1722	depends on SPARC64
1723	help
1724	  Say Y here to support the hypervisor watchdog capability embedded
1725	  in the SPARC sun4v architecture.
1726
1727	  To compile this driver as a module, choose M here. The module will
1728	  be called sun4v_wdt.
1729
1730# XTENSA Architecture
1731
1732# Xen Architecture
1733
1734config XEN_WDT
1735	tristate "Xen Watchdog support"
1736	depends on XEN
1737	help
1738	  Say Y here to support the hypervisor watchdog capability provided
1739	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
1740	  minute but can be changed with a boot-time parameter.
1741
1742config UML_WATCHDOG
1743	tristate "UML watchdog"
1744	depends on UML
1745
1746#
1747# ISA-based Watchdog Cards
1748#
1749
1750comment "ISA-based Watchdog Cards"
1751	depends on ISA
1752
1753config PCWATCHDOG
1754	tristate "Berkshire Products ISA-PC Watchdog"
1755	depends on ISA
1756	---help---
1757	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
1758	  This card simply watches your kernel to make sure it doesn't freeze,
1759	  and if it does, it reboots your computer after a certain amount of
1760	  time. This driver is like the WDT501 driver but for different
1761	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1762	  watchdog cards can be ordered from <http://www.berkprod.com/>.
1763
1764	  To compile this driver as a module, choose M here: the
1765	  module will be called pcwd.
1766
1767	  Most people will say N.
1768
1769config MIXCOMWD
1770	tristate "Mixcom Watchdog"
1771	depends on ISA
1772	---help---
1773	  This is a driver for the Mixcom hardware watchdog cards.  This
1774	  watchdog simply watches your kernel to make sure it doesn't freeze,
1775	  and if it does, it reboots your computer after a certain amount of
1776	  time.
1777
1778	  To compile this driver as a module, choose M here: the
1779	  module will be called mixcomwd.
1780
1781	  Most people will say N.
1782
1783config WDT
1784	tristate "WDT Watchdog timer"
1785	depends on ISA
1786	---help---
1787	  If you have a WDT500P or WDT501P watchdog board, say Y here,
1788	  otherwise N. It is not possible to probe for this board, which means
1789	  that you have to inform the kernel about the IO port and IRQ that
1790	  is needed (you can do this via the io and irq parameters)
1791
1792	  To compile this driver as a module, choose M here: the
1793	  module will be called wdt.
1794
1795#
1796# PCI-based Watchdog Cards
1797#
1798
1799comment "PCI-based Watchdog Cards"
1800	depends on PCI
1801
1802config PCIPCWATCHDOG
1803	tristate "Berkshire Products PCI-PC Watchdog"
1804	depends on PCI
1805	---help---
1806	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
1807	  This card simply watches your kernel to make sure it doesn't freeze,
1808	  and if it does, it reboots your computer after a certain amount of
1809	  time. The card can also monitor the internal temperature of the PC.
1810	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1811
1812	  To compile this driver as a module, choose M here: the
1813	  module will be called pcwd_pci.
1814
1815	  Most people will say N.
1816
1817config WDTPCI
1818	tristate "PCI-WDT500/501 Watchdog timer"
1819	depends on PCI
1820	---help---
1821	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1822
1823	  If you have a PCI-WDT501 watchdog board then you can enable the
1824	  temperature sensor by setting the type parameter to 501.
1825
1826	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1827	  can do this via the tachometer parameter. Only do this if you have a
1828	  fan tachometer actually set up.
1829
1830	  To compile this driver as a module, choose M here: the
1831	  module will be called wdt_pci.
1832
1833#
1834# USB-based Watchdog Cards
1835#
1836
1837comment "USB-based Watchdog Cards"
1838	depends on USB
1839
1840config USBPCWATCHDOG
1841	tristate "Berkshire Products USB-PC Watchdog"
1842	depends on USB
1843	---help---
1844	  This is the driver for the Berkshire Products USB-PC Watchdog card.
1845	  This card simply watches your kernel to make sure it doesn't freeze,
1846	  and if it does, it reboots your computer after a certain amount of
1847	  time. The card can also monitor the internal temperature of the PC.
1848	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1849
1850	  To compile this driver as a module, choose M here: the
1851	  module will be called pcwd_usb.
1852
1853	  Most people will say N.
1854
1855comment "Watchdog Pretimeout Governors"
1856
1857config WATCHDOG_PRETIMEOUT_GOV
1858	bool "Enable watchdog pretimeout governors"
1859	help
1860	  The option allows to select watchdog pretimeout governors.
1861
1862if WATCHDOG_PRETIMEOUT_GOV
1863
1864choice
1865	prompt "Default Watchdog Pretimeout Governor"
1866	default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1867	help
1868	  This option selects a default watchdog pretimeout governor.
1869	  The governor takes its action, if a watchdog is capable
1870	  to report a pretimeout event.
1871
1872config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
1873	bool "noop"
1874	select WATCHDOG_PRETIMEOUT_GOV_NOOP
1875	help
1876	  Use noop watchdog pretimeout governor by default. If noop
1877	  governor is selected by a user, write a short message to
1878	  the kernel log buffer and don't do any system changes.
1879
1880config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1881	bool "panic"
1882	select WATCHDOG_PRETIMEOUT_GOV_PANIC
1883	help
1884	  Use panic watchdog pretimeout governor by default, if
1885	  a watchdog pretimeout event happens, consider that
1886	  a watchdog feeder is dead and reboot is unavoidable.
1887
1888endchoice
1889
1890config WATCHDOG_PRETIMEOUT_GOV_NOOP
1891	tristate "Noop watchdog pretimeout governor"
1892	help
1893	  Noop watchdog pretimeout governor, only an informational
1894	  message is added to kernel log buffer.
1895
1896config WATCHDOG_PRETIMEOUT_GOV_PANIC
1897	tristate "Panic watchdog pretimeout governor"
1898	help
1899	  Panic watchdog pretimeout governor, on watchdog pretimeout
1900	  event put the kernel into panic.
1901
1902endif # WATCHDOG_PRETIMEOUT_GOV
1903
1904endif # WATCHDOG
1905