Kconfig

   1# SPDX-License-Identifier: GPL-2.0-only
   2
   3#
   4# Watchdog device configuration
   5#
   6
   7menuconfig WATCHDOG
   8	bool "Watchdog Timer Support"
   9	help
  10	  If you say Y here (and to one of the following options) and create a
  11	  character special file /dev/watchdog with major number 10 and minor
  12	  number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
  13	  subsequently opening the file and then failing to write to it for
  14	  longer than 1 minute will result in rebooting the machine. This
  15	  could be useful for a networked machine that needs to come back
  16	  on-line as fast as possible after a lock-up. There's both a watchdog
  17	  implementation entirely in software (which can sometimes fail to
  18	  reboot the machine) and a driver for hardware watchdog boards, which
  19	  are more robust and can also keep track of the temperature inside
  20	  your computer. For details, read
  21	  <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
  22
  23	  The watchdog is usually used together with the watchdog daemon
  24	  which is available from
  25	  <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon
  26	  can also monitor NFS connections and can reboot the machine when the
  27	  process table is full.
  28
  29	  If unsure, say N.
  30
  31if WATCHDOG
  32
  33config WATCHDOG_CORE
  34	tristate "WatchDog Timer Driver Core"
  35	help
  36	  Say Y here if you want to use the new watchdog timer driver core.
  37	  This driver provides a framework for all watchdog timer drivers
  38	  and gives them the /dev/watchdog interface (and later also the
  39	  sysfs interface).
  40
  41config WATCHDOG_NOWAYOUT
  42	bool "Disable watchdog shutdown on close"
  43	help
  44	  The default watchdog behaviour (which you get if you say N here) is
  45	  to stop the timer if the process managing it closes the file
  46	  /dev/watchdog. It's always remotely possible that this process might
  47	  get killed. If you say Y here, the watchdog cannot be stopped once
  48	  it has been started.
  49
  50config WATCHDOG_HANDLE_BOOT_ENABLED
  51	bool "Update boot-enabled watchdog until userspace takes over"
  52	default y
  53	help
  54	  The default watchdog behaviour (which you get if you say Y here) is
  55	  to ping watchdog devices that were enabled before the driver has
  56	  been loaded until control is taken over from userspace using the
  57	  /dev/watchdog file. If you say N here, the kernel will not update
  58	  the watchdog on its own. Thus if your userspace does not start fast
  59	  enough your device will reboot.
  60
  61config WATCHDOG_OPEN_TIMEOUT
  62	int "Timeout value for opening watchdog device"
  63	default 0
  64	help
  65	  The maximum time, in seconds, for which the watchdog framework takes
  66	  care of pinging a hardware watchdog.  A value of 0 means infinite. The
  67	  value set here can be overridden by the commandline parameter
  68	  "watchdog.open_timeout".
  69
  70config WATCHDOG_SYSFS
  71	bool "Read different watchdog information through sysfs"
  72	help
  73	  Say Y here if you want to enable watchdog device status read through
  74	  sysfs attributes.
  75
  76config WATCHDOG_HRTIMER_PRETIMEOUT
  77	bool "Enable watchdog hrtimer-based pretimeouts"
  78	help
  79	  Enable this if you want to use a hrtimer timer based pretimeout for
  80	  watchdogs that do not natively support pretimeout support. Be aware
  81	  that because this pretimeout functionality uses hrtimers, it may not
  82	  be able to fire before the actual watchdog fires in some situations.
  83
  84comment "Watchdog Pretimeout Governors"
  85
  86config WATCHDOG_PRETIMEOUT_GOV
  87	bool "Enable watchdog pretimeout governors"
  88	depends on WATCHDOG_CORE
  89	help
  90	  The option allows to select watchdog pretimeout governors.
  91
  92config WATCHDOG_PRETIMEOUT_GOV_SEL
  93	tristate
  94	depends on WATCHDOG_PRETIMEOUT_GOV
  95	default m
  96	select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
  97
  98if WATCHDOG_PRETIMEOUT_GOV
  99
 100config WATCHDOG_PRETIMEOUT_GOV_NOOP
 101	tristate "Noop watchdog pretimeout governor"
 102	depends on WATCHDOG_CORE
 103	default WATCHDOG_CORE
 104	help
 105	  Noop watchdog pretimeout governor, only an informational
 106	  message is added to kernel log buffer.
 107
 108config WATCHDOG_PRETIMEOUT_GOV_PANIC
 109	tristate "Panic watchdog pretimeout governor"
 110	depends on WATCHDOG_CORE
 111	default WATCHDOG_CORE
 112	help
 113	  Panic watchdog pretimeout governor, on watchdog pretimeout
 114	  event put the kernel into panic.
 115
 116choice
 117	prompt "Default Watchdog Pretimeout Governor"
 118	default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
 119	help
 120	  This option selects a default watchdog pretimeout governor.
 121	  The governor takes its action, if a watchdog is capable
 122	  to report a pretimeout event.
 123
 124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
 125	bool "noop"
 126	depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
 127	help
 128	  Use noop watchdog pretimeout governor by default. If noop
 129	  governor is selected by a user, write a short message to
 130	  the kernel log buffer and don't do any system changes.
 131
 132config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
 133	bool "panic"
 134	depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
 135	help
 136	  Use panic watchdog pretimeout governor by default, if
 137	  a watchdog pretimeout event happens, consider that
 138	  a watchdog feeder is dead and reboot is unavoidable.
 139
 140endchoice
 141
 142endif # WATCHDOG_PRETIMEOUT_GOV
 143
 144#
 145# General Watchdog drivers
 146#
 147
 148comment "Watchdog Device Drivers"
 149
 150# Architecture Independent
 151
 152config SOFT_WATCHDOG
 153	tristate "Software watchdog"
 154	select WATCHDOG_CORE
 155	help
 156	  A software monitoring watchdog. This will fail to reboot your system
 157	  from some situations that the hardware watchdog will recover
 158	  from. Equally it's a lot cheaper to install.
 159
 160	  To compile this driver as a module, choose M here: the
 161	  module will be called softdog.
 162
 163config SOFT_WATCHDOG_PRETIMEOUT
 164	bool "Software watchdog pretimeout governor support"
 165	depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
 166	help
 167	  Enable this if you want to use pretimeout governors with the software
 168	  watchdog. Be aware that governors might affect the watchdog because it
 169	  is purely software, e.g. the panic governor will stall it!
 170
 171config BD957XMUF_WATCHDOG
 172	tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"
 173	depends on MFD_ROHM_BD957XMUF
 174	select WATCHDOG_CORE
 175	help
 176	  Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.
 177	  These PMIC ICs contain watchdog block which can be configured
 178	  to toggle reset line if SoC fails to ping watchdog via GPIO.
 179
 180	  Say Y here to include support for the ROHM BD9576 or BD9573
 181	  watchdog. Alternatively say M to compile the driver as a module,
 182	  which will be called bd9576_wdt.
 183
 184config BD96801_WATCHDOG
 185	tristate "ROHM BD96801 PMIC Watchdog"
 186	depends on MFD_ROHM_BD96801
 187	select WATCHDOG_CORE
 188	help
 189	  Support for the watchdog in the ROHM BD96801 PMIC. Watchdog can be
 190	  configured to only generate IRQ or to trigger system reset via reset
 191	  pin.
 192
 193	  Say Y here to include support for the ROHM BD96801 watchdog.
 194	  Alternatively say M to compile the driver as a module,
 195	  which will be called bd96801_wdt.
 196
 197config CROS_EC_WATCHDOG
 198	tristate "ChromeOS EC-based watchdog"
 199	select WATCHDOG_CORE
 200	depends on CROS_EC
 201	help
 202	  Watchdog driver for Chromebook devices equipped with embedded controller.
 203	  Trigger event is recorded in EC and checked on the subsequent boot.
 204
 205	  To compile this driver as a module, choose M here: the
 206	  module will be called cros_ec_wdt.
 207
 208config DA9052_WATCHDOG
 209	tristate "Dialog DA9052 Watchdog"
 210	depends on PMIC_DA9052 || COMPILE_TEST
 211	select WATCHDOG_CORE
 212	help
 213	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
 214	  cause system reset.
 215
 216	  Say Y here to include support for the DA9052 watchdog.
 217	  Alternatively say M to compile the driver as a module,
 218	  which will be called da9052_wdt.
 219
 220config DA9055_WATCHDOG
 221	tristate "Dialog Semiconductor DA9055 Watchdog"
 222	depends on MFD_DA9055 || COMPILE_TEST
 223	select WATCHDOG_CORE
 224	help
 225	  If you say yes here you get support for watchdog on the Dialog
 226	  Semiconductor DA9055 PMIC.
 227
 228	  This driver can also be built as a module.  If so, the module
 229	  will be called da9055_wdt.
 230
 231config DA9063_WATCHDOG
 232	tristate "Dialog DA9063 Watchdog"
 233	depends on MFD_DA9063 || COMPILE_TEST
 234	depends on I2C
 235	select WATCHDOG_CORE
 236	help
 237	  Support for the watchdog in the DA9063 PMIC.
 238
 239	  This driver can be built as a module. The module name is da9063_wdt.
 240
 241config DA9062_WATCHDOG
 242	tristate "Dialog DA9062/61 Watchdog"
 243	depends on MFD_DA9062 || COMPILE_TEST
 244	depends on I2C
 245	select WATCHDOG_CORE
 246	help
 247	  Support for the watchdog in the DA9062 and DA9061 PMICs.
 248
 249	  This driver can be built as a module. The module name is da9062_wdt.
 250
 251config GPIO_WATCHDOG
 252	tristate "Watchdog device controlled through GPIO-line"
 253	depends on OF_GPIO
 254	select WATCHDOG_CORE
 255	help
 256	  If you say yes here you get support for watchdog device
 257	  controlled through GPIO-line.
 258
 259config GPIO_WATCHDOG_ARCH_INITCALL
 260	bool "Register the watchdog as early as possible"
 261	depends on GPIO_WATCHDOG=y
 262	help
 263	  In some situations, the default initcall level (module_init)
 264	  in not early enough in the boot process to avoid the watchdog
 265	  to be triggered.
 266	  If you say yes here, the initcall level would be raised to
 267	  arch_initcall.
 268	  If in doubt, say N.
 269
 270config LENOVO_SE10_WDT
 271	tristate "Lenovo SE10 Watchdog"
 272	depends on (X86 && DMI) || COMPILE_TEST
 273	depends on HAS_IOPORT
 274	select WATCHDOG_CORE
 275	help
 276	  If you say yes here you get support for the watchdog
 277	  functionality for the Lenovo SE10 platform.
 278
 279	  This driver can also be built as a module. If so, the module
 280	  will be called lenovo-se10-wdt.
 281
 282config LENOVO_SE30_WDT
 283	tristate "Lenovo SE30 Watchdog"
 284	depends on (X86 && DMI) || COMPILE_TEST
 285	depends on HAS_IOPORT
 286	select WATCHDOG_CORE
 287	help
 288	  If you say yes here you get support for the watchdog
 289	  functionality for the Lenovo SE30 platform.
 290
 291	  This driver can also be built as a module. If so, the module
 292	  will be called lenovo-se30-wdt.
 293
 294config MENF21BMC_WATCHDOG
 295	tristate "MEN 14F021P00 BMC Watchdog"
 296	depends on MFD_MENF21BMC || COMPILE_TEST
 297	depends on I2C
 298	select WATCHDOG_CORE
 299	help
 300	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
 301
 302	  This driver can also be built as a module. If so the module
 303	  will be called menf21bmc_wdt.
 304
 305config MENZ069_WATCHDOG
 306	tristate "MEN 16Z069 Watchdog"
 307	depends on MCB
 308	select WATCHDOG_CORE
 309	help
 310	  Say Y here to include support for the MEN 16Z069 Watchdog.
 311
 312	  This driver can also be built as a module. If so the module
 313	  will be called menz069_wdt.
 314
 315config WDAT_WDT
 316	tristate "ACPI Watchdog Action Table (WDAT)"
 317	depends on ACPI
 318	select WATCHDOG_CORE
 319	select ACPI_WATCHDOG
 320	help
 321	  This driver adds support for systems with ACPI Watchdog Action
 322	  Table (WDAT) table. Servers typically have this but it can be
 323	  found on some desktop machines as well. This driver will take
 324	  over the native iTCO watchdog driver found on many Intel CPUs.
 325
 326	  To compile this driver as module, choose M here: the module will
 327	  be called wdat_wdt.
 328
 329config WM831X_WATCHDOG
 330	tristate "WM831x watchdog"
 331	depends on MFD_WM831X
 332	select WATCHDOG_CORE
 333	help
 334	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
 335	  the watchdog triggers the system will be reset.
 336
 337config WM8350_WATCHDOG
 338	tristate "WM8350 watchdog"
 339	depends on MFD_WM8350
 340	select WATCHDOG_CORE
 341	help
 342	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
 343	  the watchdog triggers the system will be reset.
 344
 345config XILINX_WATCHDOG
 346	tristate "Xilinx Watchdog timer"
 347	depends on HAS_IOMEM
 348	select WATCHDOG_CORE
 349	help
 350	  Watchdog driver for the xps_timebase_wdt IP core.
 351
 352	  To compile this driver as a module, choose M here: the
 353	  module will be called of_xilinx_wdt.
 354
 355config XILINX_WINDOW_WATCHDOG
 356	tristate "Xilinx window watchdog timer"
 357	depends on HAS_IOMEM
 358	depends on ARM64 || COMPILE_TEST
 359	select WATCHDOG_CORE
 360	help
 361	  Window watchdog driver for the versal_wwdt IP core.
 362	  Window watchdog timer(WWDT) contains closed(first) and
 363	  open(second) window with 32 bit width. Write to the watchdog
 364	  timer within predefined window periods of time. This means
 365	  a period that is not too soon and a period that is not too
 366	  late. The WWDT has to be restarted within the open window time.
 367	  If software tries to restart WWDT outside of the open window
 368	  time period, it generates a reset.
 369
 370	  To compile this driver as a module, choose M here: the
 371	  module will be called xilinx_wwdt.
 372
 373config ZIIRAVE_WATCHDOG
 374	tristate "Zodiac RAVE Watchdog Timer"
 375	depends on I2C
 376	select WATCHDOG_CORE
 377	help
 378	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
 379	  Processor.
 380
 381	  To compile this driver as a module, choose M here: the
 382	  module will be called ziirave_wdt.
 383
 384config RAVE_SP_WATCHDOG
 385	tristate "RAVE SP Watchdog timer"
 386	depends on RAVE_SP_CORE
 387	depends on NVMEM || !NVMEM
 388	select WATCHDOG_CORE
 389	help
 390	  Support for the watchdog on RAVE SP device.
 391
 392config MLX_WDT
 393	tristate "Mellanox Watchdog"
 394	depends on MELLANOX_PLATFORM || COMPILE_TEST
 395	select WATCHDOG_CORE
 396	select REGMAP
 397	help
 398	  This is the driver for the hardware watchdog on Mellanox systems.
 399	  If you are going to use it, say Y here, otherwise N.
 400	  This driver can be used together with the watchdog daemon.
 401	  It can also watch your kernel to make sure it doesn't freeze,
 402	  and if it does, it reboots your system after a certain amount of
 403	  time.
 404
 405	  To compile this driver as a module, choose M here: the
 406	  module will be called mlx-wdt.
 407
 408config SL28CPLD_WATCHDOG
 409	tristate "Kontron sl28cpld Watchdog"
 410	depends on MFD_SL28CPLD || COMPILE_TEST
 411	select WATCHDOG_CORE
 412	help
 413	  Say Y here to include support for the watchdog timer
 414	  on the Kontron sl28 CPLD.
 415
 416	  To compile this driver as a module, choose M here: the
 417	  module will be called sl28cpld_wdt.
 418
 419# ALPHA Architecture
 420
 421# ARM Architecture
 422
 423config AIROHA_WATCHDOG
 424	tristate "Airoha EN7581 Watchdog"
 425	depends on ARCH_AIROHA || COMPILE_TEST
 426	select WATCHDOG_CORE
 427	help
 428	  Watchdog timer embedded into Airoha SoC. This will reboot your
 429	  system when the timeout is reached.
 430
 431config ARM_SP805_WATCHDOG
 432	tristate "ARM SP805 Watchdog"
 433	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
 434	select WATCHDOG_CORE
 435	help
 436	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
 437	  the timeout is reached.
 438
 439config ARM_SBSA_WATCHDOG
 440	tristate "ARM SBSA Generic Watchdog"
 441	depends on ARM64
 442	depends on ARM_ARCH_TIMER
 443	select WATCHDOG_CORE
 444	help
 445	  ARM SBSA Generic Watchdog has two stage timeouts:
 446	  the first signal (WS0) is for alerting the system by interrupt,
 447	  the second one (WS1) is a real hardware reset.
 448	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
 449
 450	  This driver can operate ARM SBSA Generic Watchdog as a single stage
 451	  or a two stages watchdog, it depends on the module parameter "action".
 452
 453	  Note: the maximum timeout in the two stages mode is half of that in
 454	  the single stage mode.
 455
 456	  To compile this driver as module, choose M here: The module
 457	  will be called sbsa_gwdt.
 458
 459config ARMADA_37XX_WATCHDOG
 460	tristate "Armada 37xx watchdog"
 461	depends on ARCH_MVEBU || COMPILE_TEST
 462	depends on HAS_IOMEM
 463	select MFD_SYSCON
 464	select WATCHDOG_CORE
 465	help
 466	   Say Y here to include support for the watchdog timer found on
 467	   Marvell Armada 37xx SoCs.
 468	   To compile this driver as a module, choose M here: the
 469	   module will be called armada_37xx_wdt.
 470
 471config ASM9260_WATCHDOG
 472	tristate "Alphascale ASM9260 watchdog"
 473	depends on MACH_ASM9260 || COMPILE_TEST
 474	depends on OF
 475	select WATCHDOG_CORE
 476	select RESET_CONTROLLER
 477	help
 478	  Watchdog timer embedded into Alphascale asm9260 chips. This will
 479	  reboot your system when the timeout is reached.
 480
 481config AT91RM9200_WATCHDOG
 482	tristate "AT91RM9200 watchdog"
 483	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
 484	help
 485	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
 486	  system when the timeout is reached.
 487
 488config AT91SAM9X_WATCHDOG
 489	tristate "AT91SAM9X / AT91CAP9 watchdog"
 490	depends on ARCH_AT91 || COMPILE_TEST
 491	select WATCHDOG_CORE
 492	help
 493	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
 494	  reboot your system when the timeout is reached.
 495
 496config SAMA5D4_WATCHDOG
 497	tristate "Atmel SAMA5D4 Watchdog Timer"
 498	depends on ARCH_AT91 || COMPILE_TEST
 499	select WATCHDOG_CORE
 500	help
 501	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
 502	  Its Watchdog Timer Mode Register can be written more than once.
 503	  This will reboot your system when the timeout is reached.
 504
 505config CADENCE_WATCHDOG
 506	tristate "Cadence Watchdog Timer"
 507	depends on HAS_IOMEM
 508	select WATCHDOG_CORE
 509	help
 510	  Say Y here if you want to include support for the watchdog
 511	  timer in the Xilinx Zynq.
 512
 513config 21285_WATCHDOG
 514	tristate "DC21285 watchdog"
 515	depends on FOOTBRIDGE
 516	help
 517	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
 518	  here if you wish to use this. Alternatively say M to compile the
 519	  driver as a module, which will be called wdt285.
 520
 521	  This driver does not work on all machines. In particular, early CATS
 522	  boards have hardware problems that will cause the machine to simply
 523	  lock up if the watchdog fires.
 524
 525	  "If in doubt, leave it out" - say N.
 526
 527config 977_WATCHDOG
 528	tristate "NetWinder WB83C977 watchdog"
 529	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
 530	depends on HAS_IOPORT
 531	help
 532	  Say Y here to include support for the WB977 watchdog included in
 533	  NetWinder machines. Alternatively say M to compile the driver as
 534	  a module, which will be called wdt977.
 535
 536	  Not sure? It's safe to say N.
 537
 538config FTWDT010_WATCHDOG
 539	tristate "Faraday Technology FTWDT010 watchdog"
 540	depends on ARM || COMPILE_TEST
 541	select WATCHDOG_CORE
 542	default ARCH_GEMINI
 543	help
 544	  Say Y here if to include support for the Faraday Technology
 545	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
 546	  family of devices.
 547
 548	  To compile this driver as a module, choose M here: the
 549	  module will be called ftwdt010_wdt.
 550
 551config IXP4XX_WATCHDOG
 552	tristate "IXP4xx Watchdog"
 553	depends on ARCH_IXP4XX || (ARM && COMPILE_TEST)
 554	select WATCHDOG_CORE
 555	help
 556	  Say Y here if to include support for the watchdog timer
 557	  in the Intel IXP4xx network processors. This driver can
 558	  be built as a module by choosing M. The module will
 559	  be called ixp4xx_wdt.
 560
 561	  Note: The internal IXP4xx watchdog does a soft CPU reset
 562	  which doesn't reset any peripherals. There are circumstances
 563	  where the watchdog will fail to reset the board correctly
 564	  (e.g., if the boot ROM is in an unreadable state).
 565
 566	  Say N if you are unsure.
 567
 568config S3C2410_WATCHDOG
 569	tristate "S3C6410/S5Pv210/Exynos Watchdog"
 570	depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
 571	select WATCHDOG_CORE
 572	select MFD_SYSCON if ARCH_EXYNOS
 573	help
 574	  Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos
 575	  SoCs. This will reboot the system when the timer expires with
 576	  the watchdog enabled.
 577
 578	  The driver is limited by the speed of the system's PCLK
 579	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
 580	  then watchdog intervals of over approximately 20seconds are
 581	  unavailable.
 582
 583	  Choose Y/M here only if you build for such Samsung SoC.
 584	  The driver can be built as a module by choosing M, and will
 585	  be called s3c2410_wdt.
 586
 587config SA1100_WATCHDOG
 588	tristate "SA1100/PXA2xx watchdog"
 589	depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST
 590	help
 591	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
 592	  reboot your system when timeout is reached.
 593
 594	  NOTE: once enabled, this timer cannot be disabled.
 595
 596	  To compile this driver as a module, choose M here: the
 597	  module will be called sa1100_wdt.
 598
 599config DW_WATCHDOG
 600	tristate "Synopsys DesignWare watchdog"
 601	depends on HAS_IOMEM
 602	select WATCHDOG_CORE
 603	help
 604	  Say Y here if to include support for the Synopsys DesignWare
 605	  watchdog timer found in many chips.
 606	  To compile this driver as a module, choose M here: the
 607	  module will be called dw_wdt.
 608
 609config EP93XX_WATCHDOG
 610	tristate "EP93xx Watchdog"
 611	depends on ARCH_EP93XX || COMPILE_TEST
 612	select WATCHDOG_CORE
 613	help
 614	  Say Y here if to include support for the watchdog timer
 615	  embedded in the Cirrus Logic EP93xx family of devices.
 616
 617	  To compile this driver as a module, choose M here: the
 618	  module will be called ep93xx_wdt.
 619
 620config OMAP_WATCHDOG
 621	tristate "OMAP Watchdog"
 622	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
 623	select WATCHDOG_CORE
 624	help
 625	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
 626	  Say 'Y' here to enable the
 627	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
 628
 629config PNX4008_WATCHDOG
 630	tristate "LPC32XX Watchdog"
 631	depends on ARCH_LPC32XX || COMPILE_TEST
 632	select WATCHDOG_CORE
 633	help
 634	  Say Y here if to include support for the watchdog timer
 635	  in the LPC32XX processor.
 636	  This driver can be built as a module by choosing M. The module
 637	  will be called pnx4008_wdt.
 638
 639	  Say N if you are unsure.
 640
 641config DAVINCI_WATCHDOG
 642	tristate "DaVinci watchdog"
 643	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
 644	select WATCHDOG_CORE
 645	help
 646	  Say Y here if to include support for the watchdog timer
 647	  in the DaVinci DM644x/DM646x or Keystone processors.
 648	  To compile this driver as a module, choose M here: the
 649	  module will be called davinci_wdt.
 650
 651	  NOTE: once enabled, this timer cannot be disabled.
 652	  Say N if you are unsure.
 653
 654config K3_RTI_WATCHDOG
 655	tristate "Texas Instruments K3 RTI watchdog"
 656	depends on ARCH_K3 || COMPILE_TEST
 657	select WATCHDOG_CORE
 658	help
 659	  Say Y here if you want to include support for the K3 watchdog
 660	  timer (RTI module) available in the K3 generation of processors.
 661
 662config ORION_WATCHDOG
 663	tristate "Orion watchdog"
 664	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
 665	depends on ARM
 666	select WATCHDOG_CORE
 667	help
 668	  Say Y here if to include support for the watchdog timer
 669	  in the Marvell Orion5x and Kirkwood ARM SoCs.
 670	  To compile this driver as a module, choose M here: the
 671	  module will be called orion_wdt.
 672
 673config RN5T618_WATCHDOG
 674	tristate "Ricoh RN5T618 watchdog"
 675	depends on MFD_RN5T618 || COMPILE_TEST
 676	select WATCHDOG_CORE
 677	help
 678	  If you say yes here you get support for watchdog on the Ricoh
 679	  RN5T618 PMIC.
 680
 681	  This driver can also be built as a module.  If so, the module
 682	  will be called rn5t618_wdt.
 683
 684config SUNXI_WATCHDOG
 685	tristate "Allwinner SoCs watchdog support"
 686	depends on ARCH_SUNXI || COMPILE_TEST
 687	select WATCHDOG_CORE
 688	help
 689	  Say Y here to include support for the watchdog timer
 690	  in Allwinner SoCs.
 691	  To compile this driver as a module, choose M here: the
 692	  module will be called sunxi_wdt.
 693
 694config NPCM7XX_WATCHDOG
 695	tristate "Nuvoton NPCM750 watchdog"
 696	depends on ARCH_NPCM || COMPILE_TEST
 697	default y if ARCH_NPCM7XX
 698	select WATCHDOG_CORE
 699	help
 700	  Say Y here to include Watchdog timer support for the
 701	  watchdog embedded into the NPCM7xx.
 702	  This watchdog is used to reset the system and thus cannot be
 703	  compiled as a module.
 704
 705config TWL4030_WATCHDOG
 706	tristate "TWL4030 Watchdog"
 707	depends on TWL4030_CORE
 708	select WATCHDOG_CORE
 709	help
 710	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
 711	  watchdog timer support for TWL4030 chips.
 712
 713config STMP3XXX_RTC_WATCHDOG
 714	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
 715	depends on RTC_DRV_STMP || COMPILE_TEST
 716	select WATCHDOG_CORE
 717	help
 718	  Say Y here to include support for the watchdog timer inside
 719	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
 720	  To compile this driver as a module, choose M here: the
 721	  module will be called stmp3xxx_rtc_wdt.
 722
 723config TS4800_WATCHDOG
 724	tristate "TS-4800 Watchdog"
 725	depends on HAS_IOMEM && OF
 726	depends on SOC_IMX51 || COMPILE_TEST
 727	select WATCHDOG_CORE
 728	select MFD_SYSCON
 729	help
 730	  Technologic Systems TS-4800 has watchdog timer implemented in
 731	  an external FPGA. Say Y here if you want to support for the
 732	  watchdog timer on TS-4800 board.
 733
 734config TS72XX_WATCHDOG
 735	tristate "TS-72XX SBC Watchdog"
 736	depends on MACH_TS72XX || COMPILE_TEST
 737	select WATCHDOG_CORE
 738	help
 739	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
 740	  watchdog timer implemented in a external CPLD chip. Say Y here
 741	  if you want to support for the watchdog timer on TS-72XX boards.
 742
 743	  To compile this driver as a module, choose M here: the
 744	  module will be called ts72xx_wdt.
 745
 746config MAX63XX_WATCHDOG
 747	tristate "Max63xx watchdog"
 748	depends on HAS_IOMEM
 749	select WATCHDOG_CORE
 750	help
 751	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
 752
 753config MAX77620_WATCHDOG
 754	tristate "Maxim Max77620 Watchdog Timer"
 755	depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
 756	select WATCHDOG_CORE
 757	help
 758	  This is the driver for the Max77620 watchdog timer.
 759	  Say 'Y' here to enable the watchdog timer support for
 760	  MAX77620 chips. To compile this driver as a module,
 761	  choose M here: the module will be called max77620_wdt.
 762
 763config NCT6694_WATCHDOG
 764	tristate "Nuvoton NCT6694 watchdog support"
 765	depends on MFD_NCT6694
 766	select WATCHDOG_CORE
 767	help
 768	  Say Y here to support Nuvoton NCT6694 watchdog timer
 769	  functionality.
 770
 771	  This driver can also be built as a module. If so, the module
 772	  will be called nct6694_wdt.
 773
 774config IMX2_WDT
 775	tristate "IMX2+ Watchdog"
 776	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
 777	select REGMAP_MMIO
 778	select WATCHDOG_CORE
 779	help
 780	  This is the driver for the hardware watchdog
 781	  on the Freescale IMX2 and later processors.
 782	  If you have one of these processors and wish to have
 783	  watchdog support enabled, say Y, otherwise say N.
 784
 785	  To compile this driver as a module, choose M here: the
 786	  module will be called imx2_wdt.
 787
 788config IMX_SC_WDT
 789	tristate "IMX SC Watchdog"
 790	depends on HAVE_ARM_SMCCC
 791	depends on IMX_SCU || COMPILE_TEST
 792	select WATCHDOG_CORE
 793	help
 794	  This is the driver for the system controller watchdog
 795	  on the NXP i.MX SoCs with system controller inside, the
 796	  watchdog driver will call ARM SMC API and trap into
 797	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
 798	  will request system controller to execute the operations.
 799	  If you have one of these processors and wish to have
 800	  watchdog support enabled, say Y, otherwise say N.
 801
 802	  To compile this driver as a module, choose M here: the
 803	  module will be called imx_sc_wdt.
 804
 805config IMX7ULP_WDT
 806	tristate "IMX7ULP Watchdog"
 807	depends on ARCH_MXC || COMPILE_TEST
 808	select WATCHDOG_CORE
 809	help
 810	  This is the driver for the hardware watchdog on the Freescale
 811	  IMX7ULP and later processors. If you have one of these
 812	  processors and wish to have watchdog support enabled,
 813	  say Y, otherwise say N.
 814
 815	  To compile this driver as a module, choose M here: the
 816	  module will be called imx7ulp_wdt.
 817
 818config S32G_WDT
 819	tristate "S32G Watchdog"
 820	depends on ARCH_S32 || COMPILE_TEST
 821	select WATCHDOG_CORE
 822	help
 823	  This is the driver for the hardware watchdog on the NXP
 824	  S32G platforms. If you wish to have watchdog support
 825	  enabled, say Y, otherwise say N.
 826
 827config DB500_WATCHDOG
 828	tristate "ST-Ericsson DB800 watchdog"
 829	depends on MFD_DB8500_PRCMU
 830	select WATCHDOG_CORE
 831	default y
 832	help
 833	  Say Y here to include Watchdog timer support for the watchdog
 834	  existing in the prcmu of ST-Ericsson DB8500 platform.
 835
 836	  To compile this driver as a module, choose M here: the
 837	  module will be called db500_wdt.
 838
 839config RETU_WATCHDOG
 840	tristate "Retu watchdog"
 841	depends on MFD_RETU
 842	select WATCHDOG_CORE
 843	help
 844	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
 845	  N810). At least on N800 the watchdog cannot be disabled, so
 846	  this driver is essential and you should enable it.
 847
 848	  To compile this driver as a module, choose M here: the
 849	  module will be called retu_wdt.
 850
 851config MOXART_WDT
 852	tristate "MOXART watchdog"
 853	depends on ARCH_MOXART || COMPILE_TEST
 854	help
 855	  Say Y here to include Watchdog timer support for the watchdog
 856	  existing on the MOXA ART SoC series platforms.
 857
 858	  To compile this driver as a module, choose M here: the
 859	  module will be called moxart_wdt.
 860
 861config ST_LPC_WATCHDOG
 862	tristate "STMicroelectronics LPC Watchdog"
 863	depends on ARCH_STI || COMPILE_TEST
 864	depends on OF
 865	select WATCHDOG_CORE
 866	help
 867	  Say Y here to include STMicroelectronics Low Power Controller
 868	  (LPC) based Watchdog timer support.
 869
 870	  To compile this driver as a module, choose M here: the
 871	  module will be called st_lpc_wdt.
 872
 873config TEGRA_WATCHDOG
 874	tristate "Tegra watchdog"
 875	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
 876	select WATCHDOG_CORE
 877	help
 878	  Say Y here to include support for the watchdog timer
 879	  embedded in NVIDIA Tegra SoCs.
 880
 881	  To compile this driver as a module, choose M here: the
 882	  module will be called tegra_wdt.
 883
 884config QCOM_WDT
 885	tristate "QCOM watchdog"
 886	depends on HAS_IOMEM
 887	depends on ARCH_QCOM || COMPILE_TEST
 888	select WATCHDOG_CORE
 889	help
 890	  Say Y here to include Watchdog timer support for the watchdog found
 891	  on QCOM chipsets.  Currently supported targets are the MSM8960,
 892	  APQ8064, and IPQ8064.
 893
 894	  To compile this driver as a module, choose M here: the
 895	  module will be called qcom_wdt.
 896
 897config MESON_GXBB_WATCHDOG
 898	tristate "Amlogic Meson GXBB SoCs watchdog support"
 899	depends on ARCH_MESON || COMPILE_TEST
 900	select WATCHDOG_CORE
 901	help
 902	  Say Y here to include support for the watchdog timer
 903	  in Amlogic Meson GXBB SoCs.
 904	  To compile this driver as a module, choose M here: the
 905	  module will be called meson_gxbb_wdt.
 906
 907config MESON_WATCHDOG
 908	tristate "Amlogic Meson SoCs watchdog support"
 909	depends on ARCH_MESON || COMPILE_TEST
 910	select WATCHDOG_CORE
 911	help
 912	  Say Y here to include support for the watchdog timer
 913	  in Amlogic Meson SoCs.
 914	  To compile this driver as a module, choose M here: the
 915	  module will be called meson_wdt.
 916
 917config MEDIATEK_WATCHDOG
 918	tristate "Mediatek SoCs watchdog support"
 919	depends on ARCH_MEDIATEK || COMPILE_TEST
 920	default ARCH_MEDIATEK
 921	select WATCHDOG_CORE
 922	select RESET_CONTROLLER
 923	help
 924	  Say Y here to include support for the watchdog timer
 925	  in Mediatek SoCs.
 926	  To compile this driver as a module, choose M here: the
 927	  module will be called mtk_wdt.
 928
 929config DIGICOLOR_WATCHDOG
 930	tristate "Conexant Digicolor SoCs watchdog support"
 931	depends on ARCH_DIGICOLOR || COMPILE_TEST
 932	select WATCHDOG_CORE
 933	help
 934	  Say Y here to include support for the watchdog timer
 935	  in Conexant Digicolor SoCs.
 936	  To compile this driver as a module, choose M here: the
 937	  module will be called digicolor_wdt.
 938
 939config ARM_SMC_WATCHDOG
 940	tristate "ARM Secure Monitor Call based watchdog support"
 941	depends on ARM || ARM64
 942	depends on OF
 943	depends on HAVE_ARM_SMCCC
 944	select WATCHDOG_CORE
 945	help
 946	  Say Y here to include support for a watchdog timer
 947	  implemented by the EL3 Secure Monitor on ARM platforms.
 948	  Requires firmware support.
 949	  To compile this driver as a module, choose M here: the
 950	  module will be called arm_smc_wdt.
 951
 952config LPC18XX_WATCHDOG
 953	tristate "LPC18xx/43xx Watchdog"
 954	depends on ARCH_LPC18XX || COMPILE_TEST
 955	depends on HAS_IOMEM
 956	select WATCHDOG_CORE
 957	help
 958	  Say Y here if to include support for the watchdog timer
 959	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
 960	  processors.
 961	  To compile this driver as a module, choose M here: the
 962	  module will be called lpc18xx_wdt.
 963
 964config RENESAS_WDT
 965	tristate "Renesas WDT Watchdog"
 966	depends on ARCH_RENESAS || COMPILE_TEST
 967	select WATCHDOG_CORE
 968	help
 969	  This driver adds watchdog support for the integrated watchdogs in the
 970	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
 971
 972config RENESAS_WWDT
 973	tristate "Renesas Window WWDT Watchdog"
 974	depends on ARCH_RENESAS || COMPILE_TEST
 975	select WATCHDOG_CORE
 976	help
 977	  This driver adds watchdog support for a window timer found in some
 978	  Renesas R-Car Gen3 and later SoCs.
 979
 980config RENESAS_RZAWDT
 981	tristate "Renesas RZ/A WDT Watchdog"
 982	depends on ARCH_RENESAS || COMPILE_TEST
 983	select WATCHDOG_CORE
 984	help
 985	  This driver adds watchdog support for the integrated watchdogs in the
 986	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
 987
 988config RENESAS_RZN1WDT
 989	tristate "Renesas RZ/N1 watchdog"
 990	depends on ARCH_RENESAS || COMPILE_TEST
 991	select WATCHDOG_CORE
 992	help
 993	  This driver adds watchdog support for the integrated watchdogs in the
 994	  Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system.
 995
 996config RENESAS_RZG2LWDT
 997	tristate "Renesas RZ/G2L WDT Watchdog"
 998	depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST
 999	depends on PM || COMPILE_TEST
1000	select WATCHDOG_CORE
1001	help
1002	  This driver adds watchdog support for the integrated watchdogs in the
1003	  Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
1004
1005config RENESAS_RZV2HWDT
1006	tristate "Renesas RZ/{G3E,V2H(P)} WDT Watchdog"
1007	depends on ARCH_RENESAS || COMPILE_TEST
1008	depends on PM || COMPILE_TEST
1009	select WATCHDOG_CORE
1010	help
1011	  This driver adds watchdog support for the integrated watchdogs in the
1012	  Renesas RZ/{G3E,V2H(P)} SoCs. These watchdogs can be used to reset a
1013	  system.
1014
1015config ASPEED_WATCHDOG
1016	tristate "Aspeed BMC watchdog support"
1017	depends on ARCH_ASPEED || COMPILE_TEST
1018	select WATCHDOG_CORE
1019	help
1020	  Say Y here to include support for the watchdog timer
1021	  in Aspeed BMC SoCs.
1022
1023	  This driver is required to reboot the SoC.
1024
1025	  To compile this driver as a module, choose M here: the
1026	  module will be called aspeed_wdt.
1027
1028config STM32_WATCHDOG
1029	tristate "STM32 Independent WatchDoG (IWDG) support"
1030	depends on ARCH_STM32 || COMPILE_TEST
1031	select WATCHDOG_CORE
1032	default ARCH_STM32
1033	help
1034	  Say Y here to include support for the watchdog timer
1035	  in stm32 SoCs.
1036
1037	  To compile this driver as a module, choose M here: the
1038	  module will be called stm32_iwdg.
1039
1040config STPMIC1_WATCHDOG
1041	tristate "STPMIC1 PMIC watchdog support"
1042	depends on MFD_STPMIC1
1043	select WATCHDOG_CORE
1044	help
1045	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
1046	  If the watchdog timer expires, stpmic1 will shut down all its power
1047	  supplies.
1048
1049	  To compile this driver as a module, choose M here: the
1050	  module will be called spmic1_wdt.
1051
1052config UNIPHIER_WATCHDOG
1053	tristate "UniPhier watchdog support"
1054	depends on ARCH_UNIPHIER || COMPILE_TEST
1055	depends on OF && MFD_SYSCON
1056	select WATCHDOG_CORE
1057	help
1058	  Say Y here to include support watchdog timer embedded
1059	  into the UniPhier system.
1060
1061	  To compile this driver as a module, choose M here: the
1062	  module will be called uniphier_wdt.
1063
1064config RTD119X_WATCHDOG
1065	bool "Realtek RTD119x/RTD129x watchdog support"
1066	depends on ARCH_REALTEK || COMPILE_TEST
1067	depends on OF
1068	select WATCHDOG_CORE
1069	default ARCH_REALTEK
1070	help
1071	  Say Y here to include support for the watchdog timer in
1072	  Realtek RTD1295 SoCs.
1073
1074config REALTEK_OTTO_WDT
1075	tristate "Realtek Otto MIPS watchdog support"
1076	depends on MACH_REALTEK_RTL || COMPILE_TEST
1077	depends on COMMON_CLK
1078	select WATCHDOG_CORE
1079	default MACH_REALTEK_RTL
1080	help
1081	  Say Y here to include support for the watchdog timer on Realtek
1082	  RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
1083	  notifications and system reset on timeout.
1084
1085	  When built as a module this will be called realtek_otto_wdt.
1086
1087config SPRD_WATCHDOG
1088	tristate "Spreadtrum watchdog support"
1089	depends on ARCH_SPRD || COMPILE_TEST
1090	select WATCHDOG_CORE
1091	help
1092	  Say Y here to include watchdog timer supported
1093	  by Spreadtrum system.
1094
1095config PM8916_WATCHDOG
1096	tristate "QCOM PM8916 pmic watchdog"
1097	depends on OF && MFD_SPMI_PMIC
1098	select WATCHDOG_CORE
1099	help
1100	  Say Y here to include support watchdog timer embedded into the
1101	  pm8916 module.
1102
1103config VISCONTI_WATCHDOG
1104	tristate "Toshiba Visconti series watchdog support"
1105	depends on ARCH_VISCONTI || COMPILE_TEST
1106	select WATCHDOG_CORE
1107	help
1108	  Say Y here to include support for the watchdog timer in Toshiba
1109	  Visconti SoCs.
1110
1111config MSC313E_WATCHDOG
1112	tristate "MStar MSC313e watchdog"
1113	depends on ARCH_MSTARV7 || COMPILE_TEST
1114	select WATCHDOG_CORE
1115	help
1116	  Say Y here to include support for the Watchdog timer embedded
1117	  into MStar MSC313e chips. This will reboot your system when the
1118	  timeout is reached.
1119
1120	  To compile this driver as a module, choose M here: the
1121	  module will be called msc313e_wdt.
1122
1123config APPLE_WATCHDOG
1124	tristate "Apple SoC watchdog"
1125	depends on ARCH_APPLE || COMPILE_TEST
1126	select WATCHDOG_CORE
1127	help
1128	  Say Y here to include support for the Watchdog found in Apple
1129	  SoCs such as the M1. Next to the common watchdog features this
1130	  driver is also required in order to reboot these SoCs.
1131
1132	  To compile this driver as a module, choose M here: the
1133	  module will be called apple_wdt.
1134
1135config SUNPLUS_WATCHDOG
1136	tristate "Sunplus watchdog support"
1137	depends on ARCH_SUNPLUS || COMPILE_TEST
1138	select WATCHDOG_CORE
1139	help
1140	  Say Y here to include support for the watchdog timer
1141	  in Sunplus SoCs.
1142
1143	  To compile this driver as a module, choose M here: the
1144	  module will be called sunplus_wdt.
1145
1146# X86 (i386 + ia64 + x86_64) Architecture
1147
1148config ACQUIRE_WDT
1149	tristate "Acquire SBC Watchdog Timer"
1150	depends on X86
1151	help
1152	  This is the driver for the hardware watchdog on Single Board
1153	  Computers produced by Acquire Inc (and others). This watchdog
1154	  simply watches your kernel to make sure it doesn't freeze, and if
1155	  it does, it reboots your computer after a certain amount of time.
1156
1157	  To compile this driver as a module, choose M here: the
1158	  module will be called acquirewdt.
1159
1160	  Most people will say N.
1161
1162config ADVANTECH_WDT
1163	tristate "Advantech SBC Watchdog Timer"
1164	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1165	help
1166	  If you are configuring a Linux kernel for the Advantech single-board
1167	  computer, say `Y' here to support its built-in watchdog timer
1168	  feature. More information can be found at
1169	  <https://www.advantech.com.tw/products/>
1170
1171config ADVANTECH_EC_WDT
1172	tristate "Advantech Embedded Controller Watchdog Timer"
1173	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1174	select ISA_BUS_API
1175	select WATCHDOG_CORE
1176	help
1177		This driver supports Advantech products with ITE based Embedded Controller.
1178		It does not support Advantech products with other ECs or without EC.
1179
1180config ALIM1535_WDT
1181	tristate "ALi M1535 PMU Watchdog Timer"
1182	depends on (X86 || COMPILE_TEST) && PCI
1183	help
1184	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1185
1186	  To compile this driver as a module, choose M here: the
1187	  module will be called alim1535_wdt.
1188
1189	  Most people will say N.
1190
1191config ALIM7101_WDT
1192	tristate "ALi M7101 PMU Computer Watchdog"
1193	depends on PCI
1194	help
1195	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1196	  as used in the x86 Cobalt servers and also found in some
1197	  SPARC Netra servers too.
1198
1199	  To compile this driver as a module, choose M here: the
1200	  module will be called alim7101_wdt.
1201
1202	  Most people will say N.
1203
1204config CGBC_WDT
1205	tristate "Congatec Board Controller Watchdog Timer"
1206	depends on MFD_CGBC
1207	select WATCHDOG_CORE
1208	help
1209	  Enables watchdog timer support for the Congatec Board Controller.
1210
1211	  This driver can also be built as a module. If so, the module will be
1212	  called cgbc_wdt.
1213
1214config EBC_C384_WDT
1215	tristate "WinSystems EBC-C384 Watchdog Timer"
1216	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1217	select ISA_BUS_API
1218	select WATCHDOG_CORE
1219	help
1220	  Enables watchdog timer support for the watchdog timer on the
1221	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1222	  the timeout module parameter.
1223
1224config EXAR_WDT
1225	tristate "Exar Watchdog Timer"
1226	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1227	select WATCHDOG_CORE
1228	help
1229	  Enables watchdog timer support for the watchdog timer present
1230	  in some Exar/MaxLinear UART chips like the XR28V38x.
1231
1232	  To compile this driver as a module, choose M here: the
1233	  module will be called exar_wdt.
1234
1235config F71808E_WDT
1236	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1237	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1238	select WATCHDOG_CORE
1239	help
1240	  This is the driver for the hardware watchdog on the Fintek F71808E,
1241	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1242	  F81866 Super I/O controllers.
1243
1244	  You can compile this driver directly into the kernel, or use
1245	  it as a module.  The module will be called f71808e_wdt.
1246
1247config SP5100_TCO
1248	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1249	depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT
1250	select WATCHDOG_CORE
1251	help
1252	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1253	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1254	  the machine after its expiration. The expiration time can be
1255	  configured with the "heartbeat" parameter.
1256
1257	  To compile this driver as a module, choose M here: the
1258	  module will be called sp5100_tco.
1259
1260config GEODE_WDT
1261	tristate "AMD Geode CS5535/CS5536 Watchdog"
1262	depends on CS5535_MFGPT
1263	help
1264	  This driver enables a watchdog capability built into the
1265	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1266	  processors.  This watchdog watches your kernel to make sure
1267	  it doesn't freeze, and if it does, it reboots your computer after
1268	  a certain amount of time.
1269
1270	  You can compile this driver directly into the kernel, or use
1271	  it as a module.  The module will be called geodewdt.
1272
1273config SC520_WDT
1274	tristate "AMD Elan SC520 processor Watchdog"
1275	depends on MELAN || COMPILE_TEST
1276	help
1277	  This is the driver for the hardware watchdog built in to the
1278	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1279	  This watchdog simply watches your kernel to make sure it doesn't
1280	  freeze, and if it does, it reboots your computer after a certain
1281	  amount of time.
1282
1283	  You can compile this driver directly into the kernel, or use
1284	  it as a module.  The module will be called sc520_wdt.
1285
1286config SBC_FITPC2_WATCHDOG
1287	tristate "Compulab SBC-FITPC2 watchdog"
1288	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1289	help
1290	  This is the driver for the built-in watchdog timer on the fit-PC2,
1291	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1292
1293	  It's possible to enable the watchdog timer either from BIOS (F2) or
1294	  from booted Linux.
1295	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1296	  operational range.
1297
1298	  Entering BIOS setup temporarily disables watchdog operation regardless
1299	  of current state, so system will not be restarted while user is in
1300	  BIOS setup.
1301
1302	  Once the watchdog is enabled the system will be restarted every
1303	  "Watchdog Timer Value" period, so to prevent it user can restart or
1304	  disable the watchdog.
1305
1306	  To compile this driver as a module, choose M here: the
1307	  module will be called sbc_fitpc2_wdt.
1308
1309	  Most people will say N.
1310
1311config EUROTECH_WDT
1312	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1313	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1314	help
1315	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1316	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1317	  information are at <http://www.eurotech.it/>.
1318
1319config IB700_WDT
1320	tristate "IB700 SBC Watchdog Timer"
1321	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1322	help
1323	  This is the driver for the hardware watchdog on the IB700 Single
1324	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1325	  watchdog simply watches your kernel to make sure it doesn't freeze,
1326	  and if it does, it reboots your computer after a certain amount of time.
1327
1328	  This driver is like the WDT501 driver but for slightly different
1329	  hardware.
1330
1331	  To compile this driver as a module, choose M here: the
1332	  module will be called ib700wdt.
1333
1334	  Most people will say N.
1335
1336config IBMASR
1337	tristate "IBM Automatic Server Restart"
1338	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1339	help
1340	  This is the driver for the IBM Automatic Server Restart watchdog
1341	  timer built-in into some eServer xSeries machines.
1342
1343	  To compile this driver as a module, choose M here: the
1344	  module will be called ibmasr.
1345
1346config WAFER_WDT
1347	tristate "ICP Single Board Computer Watchdog Timer"
1348	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1349	help
1350	  This is a driver for the hardware watchdog on the ICP Single
1351	  Board Computer. This driver is working on (at least) the following
1352	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1353
1354	  To compile this driver as a module, choose M here: the
1355	  module will be called wafer5823wdt.
1356
1357config I6300ESB_WDT
1358	tristate "Intel 6300ESB Timer/Watchdog"
1359	depends on PCI
1360	select WATCHDOG_CORE
1361	help
1362	  Hardware driver for the watchdog timer built into the Intel
1363	  6300ESB controller hub.
1364
1365	  To compile this driver as a module, choose M here: the
1366	  module will be called i6300esb.
1367
1368config IE6XX_WDT
1369	tristate "Intel Atom E6xx Watchdog"
1370	depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT
1371	select WATCHDOG_CORE
1372	select MFD_CORE
1373	select LPC_SCH
1374	help
1375	  Hardware driver for the watchdog timer built into the Intel
1376	  Atom E6XX (TunnelCreek) processor.
1377
1378	  To compile this driver as a module, choose M here: the
1379	  module will be called ie6xx_wdt.
1380
1381config INTEL_MID_WATCHDOG
1382	tristate "Intel MID Watchdog Timer"
1383	depends on X86_INTEL_MID
1384	select WATCHDOG_CORE
1385	help
1386	  Watchdog timer driver built into the Intel SCU for Intel MID
1387	  Platforms.
1388
1389	  This driver currently supports only the watchdog evolution
1390	  implementation in SCU, available for Merrifield generation.
1391
1392	  To compile this driver as a module, choose M here.
1393
1394config INTEL_OC_WATCHDOG
1395	tristate "Intel OC Watchdog"
1396	depends on (X86 || COMPILE_TEST) && ACPI && HAS_IOPORT
1397	select WATCHDOG_CORE
1398	help
1399	  Hardware driver for Intel Over-Clocking watchdog present in
1400	  Platform Controller Hub (PCH) chipsets.
1401
1402	  To compile this driver as a module, choose M here: the
1403	  module will be called intel_oc_wdt.
1404
1405config ITCO_WDT
1406	tristate "Intel TCO Timer/Watchdog"
1407	depends on X86 && PCI
1408	select WATCHDOG_CORE
1409	depends on I2C || I2C=n
1410	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1411	depends on HAS_IOPORT # for I2C_I801
1412	select LPC_ICH if !EXPERT
1413	select I2C_I801 if !EXPERT && I2C
1414	help
1415	  Hardware driver for the intel TCO timer based watchdog devices.
1416	  These drivers are included in the Intel 82801 I/O Controller
1417	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1418	  controller hub.
1419
1420	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1421	  that will reboot the machine after its second expiration. The
1422	  expiration time can be configured with the "heartbeat" parameter.
1423
1424	  On some motherboards the driver may fail to reset the chipset's
1425	  NO_REBOOT flag which prevents the watchdog from rebooting the
1426	  machine. If this is the case you will get a kernel message like
1427	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1428
1429	  To compile this driver as a module, choose M here: the
1430	  module will be called iTCO_wdt.
1431
1432config ITCO_VENDOR_SUPPORT
1433	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1434	depends on ITCO_WDT
1435	help
1436	  Add vendor specific support to the intel TCO timer based watchdog
1437	  devices. At this moment we only have additional support for some
1438	  SuperMicro Inc. motherboards.
1439
1440config IT8712F_WDT
1441	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1442	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1443	help
1444	  This is the driver for the built-in watchdog timer on the IT8712F
1445	  Super I/0 chipset used on many motherboards.
1446
1447	  If the driver does not work, then make sure that the game port in
1448	  the BIOS is enabled.
1449
1450	  To compile this driver as a module, choose M here: the
1451	  module will be called it8712f_wdt.
1452
1453config IT87_WDT
1454	tristate "IT87 Watchdog Timer"
1455	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1456	select WATCHDOG_CORE
1457	help
1458	  This is the driver for the hardware watchdog on the ITE IT8607,
1459	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1460	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1461	  IT8783 Super I/O chips.
1462
1463	  This watchdog simply watches your kernel to make sure it doesn't
1464	  freeze, and if it does, it reboots your computer after a certain
1465	  amount of time.
1466
1467	  To compile this driver as a module, choose M here: the module will
1468	  be called it87_wdt.
1469
1470config HP_WATCHDOG
1471	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1472	select WATCHDOG_CORE
1473	depends on (ARM64 || X86 || COMPILE_TEST) && PCI
1474	help
1475	  A software monitoring watchdog and NMI handling driver. This driver
1476	  will detect lockups and provide a stack trace. This is a driver that
1477	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1478	  To compile this driver as a module, choose M here: the module will be
1479	  called hpwdt.
1480
1481config HPWDT_NMI_DECODING
1482	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1483	depends on X86 && HP_WATCHDOG
1484	default y
1485	help
1486	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1487	  "Generate NMI to System" virtual button.  When an NMI is claimed
1488	  by the driver, panic is called.
1489
1490config KEMPLD_WDT
1491	tristate "Kontron COM Watchdog Timer"
1492	depends on MFD_KEMPLD
1493	select WATCHDOG_CORE
1494	help
1495	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1496	  (ETXexpress) modules
1497
1498	  This driver can also be built as a module. If so, the module will be
1499	  called kempld_wdt.
1500
1501config SC1200_WDT
1502	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1503	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1504	help
1505	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1506	  watchdog cards as found on the SC1200. This watchdog is mainly used
1507	  for power management purposes and can be used to power down the device
1508	  during inactivity periods (includes interrupt activity monitoring).
1509
1510	  To compile this driver as a module, choose M here: the
1511	  module will be called sc1200wdt.
1512
1513	  Most people will say N.
1514
1515config SCx200_WDT
1516	tristate "National Semiconductor SCx200 Watchdog"
1517	depends on SCx200 && PCI
1518	help
1519	  Enable the built-in watchdog timer support on the National
1520	  Semiconductor SCx200 processors.
1521
1522	  If compiled as a module, it will be called scx200_wdt.
1523
1524config PC87413_WDT
1525	tristate "NS PC87413 watchdog"
1526	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1527	help
1528	  This is the driver for the hardware watchdog on the PC87413 chipset
1529	  This watchdog simply watches your kernel to make sure it doesn't
1530	  freeze, and if it does, it reboots your computer after a certain
1531	  amount of time.
1532
1533	  To compile this driver as a module, choose M here: the
1534	  module will be called pc87413_wdt.
1535
1536	  Most people will say N.
1537
1538config NV_TCO
1539	tristate "nVidia TCO Timer/Watchdog"
1540	depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT
1541	help
1542	  Hardware driver for the TCO timer built into the nVidia Hub family
1543	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1544	  watchdog timer that will reboot the machine after its second
1545	  expiration. The expiration time can be configured with the
1546	  "heartbeat" parameter.
1547
1548	  On some motherboards the driver may fail to reset the chipset's
1549	  NO_REBOOT flag which prevents the watchdog from rebooting the
1550	  machine. If this is the case you will get a kernel message like
1551	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1552
1553	  To compile this driver as a module, choose M here: the
1554	  module will be called nv_tco.
1555
1556config RDC321X_WDT
1557	tristate "RDC R-321x SoC watchdog"
1558	depends on X86_RDC321X || COMPILE_TEST
1559	depends on PCI
1560	help
1561	  This is the driver for the built in hardware watchdog
1562	  in the RDC R-321x SoC.
1563
1564	  To compile this driver as a module, choose M here: the
1565	  module will be called rdc321x_wdt.
1566
1567config 60XX_WDT
1568	tristate "SBC-60XX Watchdog Timer"
1569	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1570	help
1571	  This driver can be used with the watchdog timer found on some
1572	  single board computers, namely the 6010 PII based computer.
1573	  It may well work with other cards.  It reads port 0x443 to enable
1574	  and re-set the watchdog timer, and reads port 0x45 to disable
1575	  the watchdog.  If you have a card that behave in similar ways,
1576	  you can probably make this driver work with your card as well.
1577
1578	  You can compile this driver directly into the kernel, or use
1579	  it as a module.  The module will be called sbc60xxwdt.
1580
1581config SBC8360_WDT
1582	tristate "SBC8360 Watchdog Timer"
1583	depends on X86_32 && HAS_IOPORT
1584	help
1585
1586	  This is the driver for the hardware watchdog on the SBC8360 Single
1587	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1588
1589	  To compile this driver as a module, choose M here: the
1590	  module will be called sbc8360.
1591
1592	  Most people will say N.
1593
1594config SBC7240_WDT
1595	tristate "SBC Nano 7240 Watchdog Timer"
1596	depends on X86_32 && HAS_IOPORT
1597	help
1598	  This is the driver for the hardware watchdog found on the IEI
1599	  single board computers EPIC Nano 7240 (and likely others). This
1600	  watchdog simply watches your kernel to make sure it doesn't freeze,
1601	  and if it does, it reboots your computer after a certain amount of
1602	  time.
1603
1604	  To compile this driver as a module, choose M here: the
1605	  module will be called sbc7240_wdt.
1606
1607config SMSC_SCH311X_WDT
1608	tristate "SMSC SCH311X Watchdog Timer"
1609	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1610	help
1611	  This is the driver for the hardware watchdog timer on the
1612	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1613	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1614	  serial ports).
1615
1616	  To compile this driver as a module, choose M here: the
1617	  module will be called sch311x_wdt.
1618
1619config SMSC37B787_WDT
1620	tristate "Winbond SMsC37B787 Watchdog Timer"
1621	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1622	help
1623	  This is the driver for the hardware watchdog component on the
1624	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1625	  from Vision Systems and maybe others.
1626
1627	  This watchdog simply watches your kernel to make sure it doesn't
1628	  freeze, and if it does, it reboots your computer after a certain
1629	  amount of time.
1630
1631	  Usually a userspace daemon will notify the kernel WDT driver that
1632	  userspace is still alive, at regular intervals.
1633
1634	  To compile this driver as a module, choose M here: the
1635	  module will be called smsc37b787_wdt.
1636
1637	  Most people will say N.
1638
1639config TQMX86_WDT
1640	tristate "TQ-Systems TQMX86 Watchdog Timer"
1641	depends on X86 || COMPILE_TEST
1642	select WATCHDOG_CORE
1643	help
1644	  This is the driver for the hardware watchdog timer in the TQMX86 IO
1645	  controller found on some of their ComExpress Modules.
1646
1647	  To compile this driver as a module, choose M here; the module
1648	  will be called tqmx86_wdt.
1649
1650	  Most people will say N.
1651
1652config VIA_WDT
1653	tristate "VIA Watchdog Timer"
1654	depends on (X86 || COMPILE_TEST) && PCI
1655	select WATCHDOG_CORE
1656	help
1657	  This is the driver for the hardware watchdog timer on VIA
1658	  southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1659
1660	  To compile this driver as a module, choose M here; the module
1661	  will be called via_wdt.
1662
1663	  Most people will say N.
1664
1665config W83627HF_WDT
1666	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1667	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1668	select WATCHDOG_CORE
1669	help
1670	  This is the driver for the hardware watchdog on the following
1671	  Super I/O chips.
1672		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1673		W83637HF
1674		W83667HG/HG-B
1675		W83687THF
1676		W83697HF
1677		W83697UG
1678		NCT6775
1679		NCT6776
1680		NCT6779
1681		NCT6791
1682		NCT6792
1683		NCT6102D/04D/06D
1684		NCT6116D
1685
1686	  This watchdog simply watches your kernel to make sure it doesn't
1687	  freeze, and if it does, it reboots your computer after a certain
1688	  amount of time.
1689
1690	  To compile this driver as a module, choose M here: the
1691	  module will be called w83627hf_wdt.
1692
1693	  Most people will say N.
1694
1695config W83877F_WDT
1696	tristate "W83877F (EMACS) Watchdog Timer"
1697	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1698	help
1699	  This is the driver for the hardware watchdog on the W83877F chipset
1700	  as used in EMACS PC-104 motherboards (and likely others).  This
1701	  watchdog simply watches your kernel to make sure it doesn't freeze,
1702	  and if it does, it reboots your computer after a certain amount of
1703	  time.
1704
1705	  To compile this driver as a module, choose M here: the
1706	  module will be called w83877f_wdt.
1707
1708	  Most people will say N.
1709
1710config W83977F_WDT
1711	tristate "W83977F (PCM-5335) Watchdog Timer"
1712	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1713	help
1714	  This is the driver for the hardware watchdog on the W83977F I/O chip
1715	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1716	  watchdog simply watches your kernel to make sure it doesn't freeze,
1717	  and if it does, it reboots your computer after a certain amount of
1718	  time.
1719
1720	  To compile this driver as a module, choose M here: the
1721	  module will be called w83977f_wdt.
1722
1723config MACHZ_WDT
1724	tristate "ZF MachZ Watchdog"
1725	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1726	help
1727	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1728	  N.  This is the driver for the watchdog timer built-in on that
1729	  processor using ZF-Logic interface.  This watchdog simply watches
1730	  your kernel to make sure it doesn't freeze, and if it does, it
1731	  reboots your computer after a certain amount of time.
1732
1733	  To compile this driver as a module, choose M here: the
1734	  module will be called machzwd.
1735
1736config SBC_EPX_C3_WATCHDOG
1737	tristate "Winsystems SBC EPX-C3 watchdog"
1738	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1739	help
1740	  This is the driver for the built-in watchdog timer on the EPX-C3
1741	  Single-board computer made by Winsystems, Inc.
1742
1743	  *Note*: This hardware watchdog is not probeable and thus there
1744	  is no way to know if writing to its IO address will corrupt
1745	  your system or have any real effect.  The only way to be sure
1746	  that this driver does what you want is to make sure you
1747	  are running it on an EPX-C3 from Winsystems with the watchdog
1748	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1749	  IO ports.  Basically, the assumption is made that if you compile
1750	  this driver into your kernel and/or load it as a module, that you
1751	  know what you are doing and that you are in fact running on an
1752	  EPX-C3 board!
1753
1754	  To compile this driver as a module, choose M here: the
1755	  module will be called sbc_epx_c3.
1756
1757config INTEL_MEI_WDT
1758	tristate "Intel MEI iAMT Watchdog"
1759	depends on INTEL_MEI && X86
1760	select WATCHDOG_CORE
1761	help
1762	  A device driver for the Intel MEI iAMT watchdog.
1763
1764	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1765	  Whenever the OS hangs or crashes, iAMT will send an event
1766	  to any subscriber to this event. The watchdog doesn't reset the
1767	  the platform.
1768
1769	  To compile this driver as a module, choose M here:
1770	  the module will be called mei_wdt.
1771
1772config NI903X_WDT
1773	tristate "NI 903x/913x Watchdog"
1774	depends on X86 && ACPI
1775	select WATCHDOG_CORE
1776	help
1777	  This is the driver for the watchdog timer on the National Instruments
1778	  903x/913x real-time controllers.
1779
1780	  To compile this driver as a module, choose M here: the module will be
1781	  called ni903x_wdt.
1782
1783config NIC7018_WDT
1784	tristate "NIC7018 Watchdog"
1785	depends on HAS_IOPORT
1786	depends on ACPI || COMPILE_TEST
1787	select WATCHDOG_CORE
1788	help
1789	  Support for National Instruments NIC7018 Watchdog.
1790
1791	  To compile this driver as a module, choose M here: the module will be
1792	  called nic7018_wdt.
1793
1794config SIEMENS_SIMATIC_IPC_WDT
1795	tristate "Siemens Simatic IPC Watchdog"
1796	depends on SIEMENS_SIMATIC_IPC && PCI
1797	default y
1798	select WATCHDOG_CORE
1799	select P2SB if X86
1800	help
1801	  This driver adds support for several watchdogs found in Industrial
1802	  PCs from Siemens.
1803
1804	  To compile this driver as a module, choose M here: the module will be
1805	  called simatic-ipc-wdt.
1806
1807# M68K Architecture
1808
1809config M54xx_WATCHDOG
1810	tristate "MCF54xx watchdog support"
1811	depends on M548x
1812	help
1813	  To compile this driver as a module, choose M here: the
1814	  module will be called m54xx_wdt.
1815
1816# MicroBlaze Architecture
1817
1818# MIPS Architecture
1819
1820config ATH79_WDT
1821	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1822	depends on ATH79 || (ARM && COMPILE_TEST)
1823	help
1824	  Hardware driver for the built-in watchdog timer on the Atheros
1825	  AR71XX/AR724X/AR913X SoCs.
1826
1827config BCM47XX_WDT
1828	tristate "Broadcom BCM47xx Watchdog Timer"
1829	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1830	select WATCHDOG_CORE
1831	help
1832	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1833
1834config RC32434_WDT
1835	tristate "IDT RC32434 SoC Watchdog Timer"
1836	depends on MIKROTIK_RB532
1837	help
1838	  Hardware driver for the IDT RC32434 SoC built-in
1839	  watchdog timer.
1840
1841	  To compile this driver as a module, choose M here: the
1842	  module will be called rc32434_wdt.
1843
1844config INDYDOG
1845	tristate "Indy/I2 Hardware Watchdog"
1846	depends on SGI_HAS_INDYDOG
1847	help
1848	  Hardware driver for the Indy's/I2's watchdog. This is a
1849	  watchdog timer that will reboot the machine after a 60 second
1850	  timer expired and no process has written to /dev/watchdog during
1851	  that time.
1852
1853config JZ4740_WDT
1854	tristate "Ingenic jz4740 SoC hardware watchdog"
1855	depends on MIPS || COMPILE_TEST
1856	depends on COMMON_CLK
1857	select WATCHDOG_CORE
1858	select MFD_SYSCON
1859	help
1860	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1861
1862config WDT_MTX1
1863	tristate "MTX-1 Hardware Watchdog"
1864	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1865	help
1866	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1867	  will reboot the machine after a 100 seconds timer expired.
1868
1869config SIBYTE_WDOG
1870	tristate "Sibyte SoC hardware watchdog"
1871	depends on CPU_SB1
1872	help
1873	  Watchdog driver for the built in watchdog hardware in Sibyte
1874	  SoC processors.  There are apparently two watchdog timers
1875	  on such processors; this driver supports only the first one,
1876	  because currently Linux only supports exporting one watchdog
1877	  to userspace.
1878
1879	  To compile this driver as a loadable module, choose M here.
1880	  The module will be called sb_wdog.
1881
1882config TXX9_WDT
1883	tristate "Toshiba TXx9 Watchdog Timer"
1884	depends on CPU_TX49XX || (MIPS && COMPILE_TEST)
1885	select WATCHDOG_CORE
1886	help
1887	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1888
1889config OCTEON_WDT
1890	tristate "Cavium OCTEON SOC family Watchdog Timer"
1891	depends on CAVIUM_OCTEON_SOC
1892	default y
1893	select WATCHDOG_CORE
1894	select EXPORT_UASM if OCTEON_WDT = m
1895	help
1896	  Hardware driver for OCTEON's on chip watchdog timer.
1897	  Enables the watchdog for all cores running Linux. It
1898	  installs a NMI handler and pokes the watchdog based on an
1899	  interrupt.  On first expiration of the watchdog, the
1900	  interrupt handler pokes it.  The second expiration causes an
1901	  NMI that prints a message. The third expiration causes a
1902	  global soft reset.
1903
1904	  When userspace has /dev/watchdog open, no poking is done
1905	  from the first interrupt, it is then only poked when the
1906	  device is written.
1907
1908config MARVELL_GTI_WDT
1909	tristate "Marvell GTI Watchdog driver"
1910	depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT)
1911	default ARCH_THUNDER
1912	select WATCHDOG_CORE
1913	help
1914	  Marvell GTI hardware supports watchdog timer. First timeout
1915	  works as watchdog pretimeout and installed interrupt handler
1916	  will be called on first timeout. Hardware can generate interrupt
1917	  to SCP on second timeout but it is not enabled, so second
1918	  timeout is ignored. If device poke does not happen then system
1919	  will reboot on third timeout.
1920
1921config BCM2835_WDT
1922	tristate "Broadcom BCM2835 hardware watchdog"
1923	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1924	select WATCHDOG_CORE
1925	help
1926	  Watchdog driver for the built in watchdog hardware in Broadcom
1927	  BCM2835 SoC.
1928
1929	  To compile this driver as a loadable module, choose M here.
1930	  The module will be called bcm2835_wdt.
1931
1932config BCM_KONA_WDT
1933	tristate "BCM Kona Watchdog"
1934	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1935	select WATCHDOG_CORE
1936	help
1937	  Support for the watchdog timer on the following Broadcom BCM281xx
1938	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1939	  BCM28155 variants.
1940
1941	  Say 'Y' or 'M' here to enable the driver. The module will be called
1942	  bcm_kona_wdt.
1943
1944config BCM_KONA_WDT_DEBUG
1945	bool "DEBUGFS support for BCM Kona Watchdog"
1946	depends on BCM_KONA_WDT || COMPILE_TEST
1947	help
1948	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1949	  access to the driver's internal data structures as well as watchdog
1950	  timer hardware registres.
1951
1952	  If in doubt, say 'N'.
1953
1954config BCM7038_WDT
1955	tristate "BCM63xx/BCM7038 Watchdog"
1956	select WATCHDOG_CORE
1957	depends on HAS_IOMEM
1958	depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
1959	help
1960	  Watchdog driver for the built-in hardware in Broadcom 7038 and
1961	  later SoCs used in set-top boxes.  BCM7038 was made public
1962	  during the 2004 CES, and since then, many Broadcom chips use this
1963	  watchdog block, including some cable modem chips and DSL (63xx)
1964	  chips.
1965
1966config IMGPDC_WDT
1967	tristate "Imagination Technologies PDC Watchdog Timer"
1968	depends on HAS_IOMEM
1969	depends on MIPS || COMPILE_TEST
1970	select WATCHDOG_CORE
1971	help
1972	  Driver for Imagination Technologies PowerDown Controller
1973	  Watchdog Timer.
1974
1975	  To compile this driver as a loadable module, choose M here.
1976	  The module will be called imgpdc_wdt.
1977
1978config LANTIQ_WDT
1979	tristate "Lantiq SoC watchdog"
1980	depends on LANTIQ
1981	select WATCHDOG_CORE
1982	help
1983	  Hardware driver for the Lantiq SoC Watchdog Timer.
1984
1985config LOONGSON1_WDT
1986	tristate "Loongson1 SoC hardware watchdog"
1987	depends on MACH_LOONGSON32 || MACH_LOONGSON64 || COMPILE_TEST
1988	select WATCHDOG_CORE
1989	help
1990	  Hardware driver for the Loongson family Watchdog Timer.
1991
1992config RALINK_WDT
1993	tristate "Ralink SoC watchdog"
1994	select WATCHDOG_CORE
1995	depends on RALINK
1996	help
1997	  Hardware driver for the Ralink SoC Watchdog Timer.
1998
1999config GXP_WATCHDOG
2000	tristate "HPE GXP watchdog support"
2001	depends on ARCH_HPE_GXP || COMPILE_TEST
2002	select WATCHDOG_CORE
2003	help
2004	  Say Y here to include support for the watchdog timer
2005	  in HPE GXP SoCs.
2006
2007	  To compile this driver as a module, choose M here.
2008	  The module will be called gxp-wdt.
2009
2010config MT7621_WDT
2011	tristate "Mediatek SoC watchdog"
2012	select WATCHDOG_CORE
2013	select REGMAP_MMIO
2014	select MFD_SYSCON
2015	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
2016	help
2017	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
2018
2019config PIC32_WDT
2020	tristate "Microchip PIC32 hardware watchdog"
2021	select WATCHDOG_CORE
2022	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
2023	help
2024	  Watchdog driver for the built in watchdog hardware in a PIC32.
2025
2026	  Configuration bits must be set appropriately for the watchdog to be
2027	  controlled by this driver.
2028
2029	  To compile this driver as a loadable module, choose M here.
2030	  The module will be called pic32-wdt.
2031
2032config PIC32_DMT
2033	tristate "Microchip PIC32 Deadman Timer"
2034	select WATCHDOG_CORE
2035	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
2036	help
2037	  Watchdog driver for PIC32 instruction fetch counting timer. This
2038	  specific timer is typically be used in mission critical and safety
2039	  critical applications, where any single failure of the software
2040	  functionality and sequencing must be detected.
2041
2042	  To compile this driver as a loadable module, choose M here.
2043	  The module will be called pic32-dmt.
2044
2045# PARISC Architecture
2046
2047# POWERPC Architecture
2048
2049config GEF_WDT
2050	tristate "GE Watchdog Timer"
2051	depends on GE_FPGA
2052	help
2053	  Watchdog timer found in a number of GE single board computers.
2054
2055config MPC5200_WDT
2056	bool "MPC52xx Watchdog Timer"
2057	depends on PPC_MPC52xx || COMPILE_TEST
2058	help
2059	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
2060
2061config 8xxx_WDT
2062	tristate "MPC8xxx Platform Watchdog Timer"
2063	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
2064	select WATCHDOG_CORE
2065	help
2066	  This driver is for a SoC level watchdog that exists on some
2067	  Freescale PowerPC processors. So far this driver supports:
2068	  - MPC8xx watchdogs
2069	  - MPC83xx watchdogs
2070	  - MPC86xx watchdogs
2071
2072	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
2073
2074config PIKA_WDT
2075	tristate "PIKA FPGA Watchdog"
2076	depends on WARP || (PPC64 && COMPILE_TEST)
2077	default WARP
2078	help
2079	  This enables the watchdog in the PIKA FPGA. Currently used on
2080	  the Warp platform.
2081
2082config BOOKE_WDT
2083	tristate "PowerPC Book-E Watchdog Timer"
2084	depends on BOOKE || 4xx
2085	select WATCHDOG_CORE
2086	help
2087	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
2088	  MPC85xx SOCs and the IBM PowerPC 440.
2089
2090	  Please see Documentation/watchdog/watchdog-api.rst for
2091	  more information.
2092
2093config BOOKE_WDT_DEFAULT_TIMEOUT
2094	int "PowerPC Book-E Watchdog Timer Default Timeout"
2095	depends on BOOKE_WDT
2096	default 38 if PPC_E500
2097	range 0 63 if PPC_E500
2098	default 3 if !PPC_E500
2099	range 0 3 if !PPC_E500
2100	help
2101	  Select the default watchdog timer period to be used by the PowerPC
2102	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
2103	  position represented by this number transitions from zero to one.
2104
2105	  For Freescale Book-E processors, this is a number between 0 and 63.
2106	  For other Book-E processors, this is a number between 0 and 3.
2107
2108	  The value can be overridden by the wdt_period command-line parameter.
2109
2110config MEN_A21_WDT
2111	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
2112	select WATCHDOG_CORE
2113	depends on GPIOLIB || COMPILE_TEST
2114	help
2115	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
2116
2117	  The driver can also be built as a module. If so, the module will be
2118	  called mena21_wdt.
2119
2120	  If unsure select N here.
2121
2122# PPC64 Architecture
2123
2124config PSERIES_WDT
2125	tristate "POWER Architecture Platform Watchdog Timer"
2126	depends on PPC_PSERIES
2127	select WATCHDOG_CORE
2128	help
2129	  Driver for virtual watchdog timers provided by PAPR
2130	  hypervisors (e.g. PowerVM, KVM).
2131
2132config WATCHDOG_RTAS
2133	tristate "RTAS watchdog"
2134	depends on PPC_RTAS
2135	help
2136	  This driver adds watchdog support for the RTAS watchdog.
2137
2138	  To compile this driver as a module, choose M here. The module
2139	  will be called wdrtas.
2140
2141# RISC-V Architecture
2142
2143config STARFIVE_WATCHDOG
2144	tristate "StarFive Watchdog support"
2145	depends on ARCH_STARFIVE || COMPILE_TEST
2146	select WATCHDOG_CORE
2147	default ARCH_STARFIVE
2148	help
2149	  Say Y here to support the watchdog of StarFive JH7100 and JH7110
2150	  SoC. This driver can also be built as a module if choose M.
2151
2152# S390 Architecture
2153
2154config DIAG288_WATCHDOG
2155	tristate "System z diag288 Watchdog"
2156	depends on S390
2157	select WATCHDOG_CORE
2158	help
2159	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
2160	  provide a virtual watchdog timer to their guest that cause a
2161	  user define Control Program command to be executed after a
2162	  timeout.
2163	  LPAR provides a very similar interface. This driver handles
2164	  both.
2165
2166	  To compile this driver as a module, choose M here. The module
2167	  will be called diag288_wdt.
2168
2169# SUPERH (sh + sh64) Architecture
2170
2171config SH_WDT
2172	tristate "SuperH Watchdog"
2173	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
2174	select WATCHDOG_CORE
2175	help
2176	  This driver adds watchdog support for the integrated watchdog in the
2177	  SuperH processors. If you have one of these processors and wish
2178	  to have watchdog support enabled, say Y, otherwise say N.
2179
2180	  As a side note, saying Y here will automatically boost HZ to 1000
2181	  so that the timer has a chance to clear the overflow counter. On
2182	  slower systems (such as the SH-2 and SH-3) this will likely yield
2183	  some performance issues. As such, the WDT should be avoided here
2184	  unless it is absolutely necessary.
2185
2186	  To compile this driver as a module, choose M here: the
2187	  module will be called shwdt.
2188
2189# SPARC Architecture
2190
2191# SPARC64 Architecture
2192
2193config WATCHDOG_CP1XXX
2194	tristate "CP1XXX Hardware Watchdog support"
2195	depends on SPARC64 && PCI
2196	help
2197	  This is the driver for the hardware watchdog timers present on
2198	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2199
2200	  To compile this driver as a module, choose M here: the
2201	  module will be called cpwatchdog.
2202
2203	  If you do not have a CompactPCI model CP1400 or CP1500, or
2204	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2205	  you should say N to this option.
2206
2207config WATCHDOG_RIO
2208	tristate "RIO Hardware Watchdog support"
2209	depends on SPARC64 && PCI
2210	help
2211	  Say Y here to support the hardware watchdog capability on Sun RIO
2212	  machines.  The watchdog timeout period is normally one minute but
2213	  can be changed with a boot-time parameter.
2214
2215config WATCHDOG_SUN4V
2216	tristate "Sun4v Watchdog support"
2217	select WATCHDOG_CORE
2218	depends on SPARC64
2219	help
2220	  Say Y here to support the hypervisor watchdog capability embedded
2221	  in the SPARC sun4v architecture.
2222
2223	  To compile this driver as a module, choose M here. The module will
2224	  be called sun4v_wdt.
2225
2226# XTENSA Architecture
2227
2228# Xen Architecture
2229
2230config XEN_WDT
2231	tristate "Xen Watchdog support"
2232	depends on XEN
2233	select WATCHDOG_CORE
2234	help
2235	  Say Y here to support the hypervisor watchdog capability provided
2236	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2237	  minute but can be changed with a boot-time parameter.
2238
2239config UML_WATCHDOG
2240	tristate "UML watchdog"
2241	depends on UML || COMPILE_TEST
2242
2243#
2244# ISA-based Watchdog Cards
2245#
2246
2247comment "ISA-based Watchdog Cards"
2248	depends on ISA
2249
2250config PCWATCHDOG
2251	tristate "Berkshire Products ISA-PC Watchdog"
2252	depends on ISA
2253	help
2254	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2255	  This card simply watches your kernel to make sure it doesn't freeze,
2256	  and if it does, it reboots your computer after a certain amount of
2257	  time. This driver is like the WDT501 driver but for different
2258	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2259	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2260
2261	  To compile this driver as a module, choose M here: the
2262	  module will be called pcwd.
2263
2264	  Most people will say N.
2265
2266config MIXCOMWD
2267	tristate "Mixcom Watchdog"
2268	depends on ISA
2269	help
2270	  This is a driver for the Mixcom hardware watchdog cards.  This
2271	  watchdog simply watches your kernel to make sure it doesn't freeze,
2272	  and if it does, it reboots your computer after a certain amount of
2273	  time.
2274
2275	  To compile this driver as a module, choose M here: the
2276	  module will be called mixcomwd.
2277
2278	  Most people will say N.
2279
2280config WDT
2281	tristate "WDT Watchdog timer"
2282	depends on ISA
2283	help
2284	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2285	  otherwise N. It is not possible to probe for this board, which means
2286	  that you have to inform the kernel about the IO port and IRQ that
2287	  is needed (you can do this via the io and irq parameters)
2288
2289	  To compile this driver as a module, choose M here: the
2290	  module will be called wdt.
2291
2292#
2293# PCI-based Watchdog Cards
2294#
2295
2296comment "PCI-based Watchdog Cards"
2297	depends on PCI
2298
2299config PCIPCWATCHDOG
2300	tristate "Berkshire Products PCI-PC Watchdog"
2301	depends on PCI && HAS_IOPORT
2302	help
2303	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2304	  This card simply watches your kernel to make sure it doesn't freeze,
2305	  and if it does, it reboots your computer after a certain amount of
2306	  time. The card can also monitor the internal temperature of the PC.
2307	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2308
2309	  To compile this driver as a module, choose M here: the
2310	  module will be called pcwd_pci.
2311
2312	  Most people will say N.
2313
2314config WDTPCI
2315	tristate "PCI-WDT500/501 Watchdog timer"
2316	depends on PCI && HAS_IOPORT
2317	help
2318	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2319
2320	  If you have a PCI-WDT501 watchdog board then you can enable the
2321	  temperature sensor by setting the type parameter to 501.
2322
2323	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2324	  can do this via the tachometer parameter. Only do this if you have a
2325	  fan tachometer actually set up.
2326
2327	  To compile this driver as a module, choose M here: the
2328	  module will be called wdt_pci.
2329
2330#
2331# USB-based Watchdog Cards
2332#
2333
2334comment "USB-based Watchdog Cards"
2335	depends on USB
2336
2337config USBPCWATCHDOG
2338	tristate "Berkshire Products USB-PC Watchdog"
2339	depends on USB
2340	help
2341	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2342	  This card simply watches your kernel to make sure it doesn't freeze,
2343	  and if it does, it reboots your computer after a certain amount of
2344	  time. The card can also monitor the internal temperature of the PC.
2345	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2346
2347	  To compile this driver as a module, choose M here: the
2348	  module will be called pcwd_usb.
2349
2350	  Most people will say N.
2351
2352config KEEMBAY_WATCHDOG
2353	tristate "Intel Keem Bay SoC non-secure watchdog"
2354	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2355	select WATCHDOG_CORE
2356	help
2357	  This option enable support for an In-secure watchdog timer driver for
2358	  Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2359	  count unit. An interrupt will be triggered, when the count crosses
2360	  the threshold configured in the register.
2361
2362	  To compile this driver as a module, choose M here: the
2363	  module will be called keembay_wdt.
2364
2365endif # WATCHDOG