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 DA9052_WATCHDOG
 185	tristate "Dialog DA9052 Watchdog"
 186	depends on PMIC_DA9052 || COMPILE_TEST
 187	select WATCHDOG_CORE
 188	help
 189	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
 190	  cause system reset.
 191
 192	  Say Y here to include support for the DA9052 watchdog.
 193	  Alternatively say M to compile the driver as a module,
 194	  which will be called da9052_wdt.
 195
 196config DA9055_WATCHDOG
 197	tristate "Dialog Semiconductor DA9055 Watchdog"
 198	depends on MFD_DA9055 || COMPILE_TEST
 199	select WATCHDOG_CORE
 200	help
 201	  If you say yes here you get support for watchdog on the Dialog
 202	  Semiconductor DA9055 PMIC.
 203
 204	  This driver can also be built as a module.  If so, the module
 205	  will be called da9055_wdt.
 206
 207config DA9063_WATCHDOG
 208	tristate "Dialog DA9063 Watchdog"
 209	depends on MFD_DA9063 || COMPILE_TEST
 210	depends on I2C
 211	select WATCHDOG_CORE
 212	help
 213	  Support for the watchdog in the DA9063 PMIC.
 214
 215	  This driver can be built as a module. The module name is da9063_wdt.
 216
 217config DA9062_WATCHDOG
 218	tristate "Dialog DA9062/61 Watchdog"
 219	depends on MFD_DA9062 || COMPILE_TEST
 220	depends on I2C
 221	select WATCHDOG_CORE
 222	help
 223	  Support for the watchdog in the DA9062 and DA9061 PMICs.
 224
 225	  This driver can be built as a module. The module name is da9062_wdt.
 226
 227config GPIO_WATCHDOG
 228	tristate "Watchdog device controlled through GPIO-line"
 229	depends on OF_GPIO
 230	select WATCHDOG_CORE
 231	help
 232	  If you say yes here you get support for watchdog device
 233	  controlled through GPIO-line.
 234
 235config GPIO_WATCHDOG_ARCH_INITCALL
 236	bool "Register the watchdog as early as possible"
 237	depends on GPIO_WATCHDOG=y
 238	help
 239	  In some situations, the default initcall level (module_init)
 240	  in not early enough in the boot process to avoid the watchdog
 241	  to be triggered.
 242	  If you say yes here, the initcall level would be raised to
 243	  arch_initcall.
 244	  If in doubt, say N.
 245
 246config MENF21BMC_WATCHDOG
 247	tristate "MEN 14F021P00 BMC Watchdog"
 248	depends on MFD_MENF21BMC || COMPILE_TEST
 249	depends on I2C
 250	select WATCHDOG_CORE
 251	help
 252	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
 253
 254	  This driver can also be built as a module. If so the module
 255	  will be called menf21bmc_wdt.
 256
 257config MENZ069_WATCHDOG
 258	tristate "MEN 16Z069 Watchdog"
 259	depends on MCB
 260	select WATCHDOG_CORE
 261	help
 262	  Say Y here to include support for the MEN 16Z069 Watchdog.
 263
 264	  This driver can also be built as a module. If so the module
 265	  will be called menz069_wdt.
 266
 267config WDAT_WDT
 268	tristate "ACPI Watchdog Action Table (WDAT)"
 269	depends on ACPI
 270	select WATCHDOG_CORE
 271	select ACPI_WATCHDOG
 272	help
 273	  This driver adds support for systems with ACPI Watchdog Action
 274	  Table (WDAT) table. Servers typically have this but it can be
 275	  found on some desktop machines as well. This driver will take
 276	  over the native iTCO watchdog driver found on many Intel CPUs.
 277
 278	  To compile this driver as module, choose M here: the module will
 279	  be called wdat_wdt.
 280
 281config WM831X_WATCHDOG
 282	tristate "WM831x watchdog"
 283	depends on MFD_WM831X
 284	select WATCHDOG_CORE
 285	help
 286	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
 287	  the watchdog triggers the system will be reset.
 288
 289config WM8350_WATCHDOG
 290	tristate "WM8350 watchdog"
 291	depends on MFD_WM8350
 292	select WATCHDOG_CORE
 293	help
 294	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
 295	  the watchdog triggers the system will be reset.
 296
 297config XILINX_WATCHDOG
 298	tristate "Xilinx Watchdog timer"
 299	depends on HAS_IOMEM
 300	select WATCHDOG_CORE
 301	help
 302	  Watchdog driver for the xps_timebase_wdt IP core.
 303
 304	  To compile this driver as a module, choose M here: the
 305	  module will be called of_xilinx_wdt.
 306
 307config XILINX_WINDOW_WATCHDOG
 308	tristate "Xilinx window watchdog timer"
 309	depends on HAS_IOMEM
 310	depends on ARM64 || COMPILE_TEST
 311	select WATCHDOG_CORE
 312	help
 313	  Window watchdog driver for the versal_wwdt IP core.
 314	  Window watchdog timer(WWDT) contains closed(first) and
 315	  open(second) window with 32 bit width. Write to the watchdog
 316	  timer within predefined window periods of time. This means
 317	  a period that is not too soon and a period that is not too
 318	  late. The WWDT has to be restarted within the open window time.
 319	  If software tries to restart WWDT outside of the open window
 320	  time period, it generates a reset.
 321
 322	  To compile this driver as a module, choose M here: the
 323	  module will be called xilinx_wwdt.
 324
 325config ZIIRAVE_WATCHDOG
 326	tristate "Zodiac RAVE Watchdog Timer"
 327	depends on I2C
 328	select WATCHDOG_CORE
 329	help
 330	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
 331	  Processor.
 332
 333	  To compile this driver as a module, choose M here: the
 334	  module will be called ziirave_wdt.
 335
 336config RAVE_SP_WATCHDOG
 337	tristate "RAVE SP Watchdog timer"
 338	depends on RAVE_SP_CORE
 339	depends on NVMEM || !NVMEM
 340	select WATCHDOG_CORE
 341	help
 342	  Support for the watchdog on RAVE SP device.
 343
 344config MLX_WDT
 345	tristate "Mellanox Watchdog"
 346	depends on MELLANOX_PLATFORM || COMPILE_TEST
 347	select WATCHDOG_CORE
 348	select REGMAP
 349	help
 350	  This is the driver for the hardware watchdog on Mellanox systems.
 351	  If you are going to use it, say Y here, otherwise N.
 352	  This driver can be used together with the watchdog daemon.
 353	  It can also watch your kernel to make sure it doesn't freeze,
 354	  and if it does, it reboots your system after a certain amount of
 355	  time.
 356
 357	  To compile this driver as a module, choose M here: the
 358	  module will be called mlx-wdt.
 359
 360config SL28CPLD_WATCHDOG
 361	tristate "Kontron sl28cpld Watchdog"
 362	depends on MFD_SL28CPLD || COMPILE_TEST
 363	select WATCHDOG_CORE
 364	help
 365	  Say Y here to include support for the watchdog timer
 366	  on the Kontron sl28 CPLD.
 367
 368	  To compile this driver as a module, choose M here: the
 369	  module will be called sl28cpld_wdt.
 370
 371# ALPHA Architecture
 372
 373# ARM Architecture
 374
 375config ARM_SP805_WATCHDOG
 376	tristate "ARM SP805 Watchdog"
 377	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
 378	select WATCHDOG_CORE
 379	help
 380	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
 381	  the timeout is reached.
 382
 383config ARM_SBSA_WATCHDOG
 384	tristate "ARM SBSA Generic Watchdog"
 385	depends on ARM64
 386	depends on ARM_ARCH_TIMER
 387	select WATCHDOG_CORE
 388	help
 389	  ARM SBSA Generic Watchdog has two stage timeouts:
 390	  the first signal (WS0) is for alerting the system by interrupt,
 391	  the second one (WS1) is a real hardware reset.
 392	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
 393
 394	  This driver can operate ARM SBSA Generic Watchdog as a single stage
 395	  or a two stages watchdog, it depends on the module parameter "action".
 396
 397	  Note: the maximum timeout in the two stages mode is half of that in
 398	  the single stage mode.
 399
 400	  To compile this driver as module, choose M here: The module
 401	  will be called sbsa_gwdt.
 402
 403config ARMADA_37XX_WATCHDOG
 404	tristate "Armada 37xx watchdog"
 405	depends on ARCH_MVEBU || COMPILE_TEST
 406	depends on HAS_IOMEM
 407	select MFD_SYSCON
 408	select WATCHDOG_CORE
 409	help
 410	   Say Y here to include support for the watchdog timer found on
 411	   Marvell Armada 37xx SoCs.
 412	   To compile this driver as a module, choose M here: the
 413	   module will be called armada_37xx_wdt.
 414
 415config ASM9260_WATCHDOG
 416	tristate "Alphascale ASM9260 watchdog"
 417	depends on MACH_ASM9260 || COMPILE_TEST
 418	depends on OF
 419	select WATCHDOG_CORE
 420	select RESET_CONTROLLER
 421	help
 422	  Watchdog timer embedded into Alphascale asm9260 chips. This will
 423	  reboot your system when the timeout is reached.
 424
 425config AT91RM9200_WATCHDOG
 426	tristate "AT91RM9200 watchdog"
 427	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
 428	help
 429	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
 430	  system when the timeout is reached.
 431
 432config AT91SAM9X_WATCHDOG
 433	tristate "AT91SAM9X / AT91CAP9 watchdog"
 434	depends on ARCH_AT91 || COMPILE_TEST
 435	select WATCHDOG_CORE
 436	help
 437	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
 438	  reboot your system when the timeout is reached.
 439
 440config SAMA5D4_WATCHDOG
 441	tristate "Atmel SAMA5D4 Watchdog Timer"
 442	depends on ARCH_AT91 || COMPILE_TEST
 443	select WATCHDOG_CORE
 444	help
 445	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
 446	  Its Watchdog Timer Mode Register can be written more than once.
 447	  This will reboot your system when the timeout is reached.
 448
 449config CADENCE_WATCHDOG
 450	tristate "Cadence Watchdog Timer"
 451	depends on HAS_IOMEM
 452	select WATCHDOG_CORE
 453	help
 454	  Say Y here if you want to include support for the watchdog
 455	  timer in the Xilinx Zynq.
 456
 457config 21285_WATCHDOG
 458	tristate "DC21285 watchdog"
 459	depends on FOOTBRIDGE
 460	help
 461	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
 462	  here if you wish to use this. Alternatively say M to compile the
 463	  driver as a module, which will be called wdt285.
 464
 465	  This driver does not work on all machines. In particular, early CATS
 466	  boards have hardware problems that will cause the machine to simply
 467	  lock up if the watchdog fires.
 468
 469	  "If in doubt, leave it out" - say N.
 470
 471config 977_WATCHDOG
 472	tristate "NetWinder WB83C977 watchdog"
 473	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
 474	help
 475	  Say Y here to include support for the WB977 watchdog included in
 476	  NetWinder machines. Alternatively say M to compile the driver as
 477	  a module, which will be called wdt977.
 478
 479	  Not sure? It's safe to say N.
 480
 481config FTWDT010_WATCHDOG
 482	tristate "Faraday Technology FTWDT010 watchdog"
 483	depends on ARM || COMPILE_TEST
 484	select WATCHDOG_CORE
 485	default ARCH_GEMINI
 486	help
 487	  Say Y here if to include support for the Faraday Technology
 488	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
 489	  family of devices.
 490
 491	  To compile this driver as a module, choose M here: the
 492	  module will be called ftwdt010_wdt.
 493
 494config IXP4XX_WATCHDOG
 495	tristate "IXP4xx Watchdog"
 496	depends on ARCH_IXP4XX || (ARM && COMPILE_TEST)
 497	select WATCHDOG_CORE
 498	help
 499	  Say Y here if to include support for the watchdog timer
 500	  in the Intel IXP4xx network processors. This driver can
 501	  be built as a module by choosing M. The module will
 502	  be called ixp4xx_wdt.
 503
 504	  Note: The internal IXP4xx watchdog does a soft CPU reset
 505	  which doesn't reset any peripherals. There are circumstances
 506	  where the watchdog will fail to reset the board correctly
 507	  (e.g., if the boot ROM is in an unreadable state).
 508
 509	  Say N if you are unsure.
 510
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 511config S3C2410_WATCHDOG
 512	tristate "S3C6410/S5Pv210/Exynos Watchdog"
 513	depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
 514	select WATCHDOG_CORE
 515	select MFD_SYSCON if ARCH_EXYNOS
 516	help
 517	  Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos
 518	  SoCs. This will reboot the system when the timer expires with
 519	  the watchdog enabled.
 520
 521	  The driver is limited by the speed of the system's PCLK
 522	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
 523	  then watchdog intervals of over approximately 20seconds are
 524	  unavailable.
 525
 526	  Choose Y/M here only if you build for such Samsung SoC.
 527	  The driver can be built as a module by choosing M, and will
 528	  be called s3c2410_wdt.
 529
 530config SA1100_WATCHDOG
 531	tristate "SA1100/PXA2xx watchdog"
 532	depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST
 533	help
 534	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
 535	  reboot your system when timeout is reached.
 536
 537	  NOTE: once enabled, this timer cannot be disabled.
 538
 539	  To compile this driver as a module, choose M here: the
 540	  module will be called sa1100_wdt.
 541
 542config DW_WATCHDOG
 543	tristate "Synopsys DesignWare watchdog"
 544	depends on HAS_IOMEM
 545	select WATCHDOG_CORE
 546	help
 547	  Say Y here if to include support for the Synopsys DesignWare
 548	  watchdog timer found in many chips.
 549	  To compile this driver as a module, choose M here: the
 550	  module will be called dw_wdt.
 551
 
 
 
 
 
 
 
 
 
 552config EP93XX_WATCHDOG
 553	tristate "EP93xx Watchdog"
 554	depends on ARCH_EP93XX || COMPILE_TEST
 555	select WATCHDOG_CORE
 556	help
 557	  Say Y here if to include support for the watchdog timer
 558	  embedded in the Cirrus Logic EP93xx family of devices.
 559
 560	  To compile this driver as a module, choose M here: the
 561	  module will be called ep93xx_wdt.
 562
 563config OMAP_WATCHDOG
 564	tristate "OMAP Watchdog"
 565	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
 566	select WATCHDOG_CORE
 567	help
 568	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
 569	  Say 'Y' here to enable the
 570	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
 571
 572config PNX4008_WATCHDOG
 573	tristate "LPC32XX Watchdog"
 574	depends on ARCH_LPC32XX || COMPILE_TEST
 575	select WATCHDOG_CORE
 576	help
 577	  Say Y here if to include support for the watchdog timer
 578	  in the LPC32XX processor.
 579	  This driver can be built as a module by choosing M. The module
 580	  will be called pnx4008_wdt.
 581
 582	  Say N if you are unsure.
 583
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 584config DAVINCI_WATCHDOG
 585	tristate "DaVinci watchdog"
 586	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
 587	select WATCHDOG_CORE
 588	help
 589	  Say Y here if to include support for the watchdog timer
 590	  in the DaVinci DM644x/DM646x or Keystone processors.
 591	  To compile this driver as a module, choose M here: the
 592	  module will be called davinci_wdt.
 593
 594	  NOTE: once enabled, this timer cannot be disabled.
 595	  Say N if you are unsure.
 596
 597config K3_RTI_WATCHDOG
 598	tristate "Texas Instruments K3 RTI watchdog"
 599	depends on ARCH_K3 || COMPILE_TEST
 600	select WATCHDOG_CORE
 601	help
 602	  Say Y here if you want to include support for the K3 watchdog
 603	  timer (RTI module) available in the K3 generation of processors.
 604
 605config ORION_WATCHDOG
 606	tristate "Orion watchdog"
 607	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
 608	depends on ARM
 609	select WATCHDOG_CORE
 610	help
 611	  Say Y here if to include support for the watchdog timer
 612	  in the Marvell Orion5x and Kirkwood ARM SoCs.
 613	  To compile this driver as a module, choose M here: the
 614	  module will be called orion_wdt.
 615
 616config RN5T618_WATCHDOG
 617	tristate "Ricoh RN5T618 watchdog"
 618	depends on MFD_RN5T618 || COMPILE_TEST
 619	select WATCHDOG_CORE
 620	help
 621	  If you say yes here you get support for watchdog on the Ricoh
 622	  RN5T618 PMIC.
 623
 624	  This driver can also be built as a module.  If so, the module
 625	  will be called rn5t618_wdt.
 626
 627config SUNXI_WATCHDOG
 628	tristate "Allwinner SoCs watchdog support"
 629	depends on ARCH_SUNXI || COMPILE_TEST
 630	select WATCHDOG_CORE
 631	help
 632	  Say Y here to include support for the watchdog timer
 633	  in Allwinner SoCs.
 634	  To compile this driver as a module, choose M here: the
 635	  module will be called sunxi_wdt.
 636
 637config NPCM7XX_WATCHDOG
 638	tristate "Nuvoton NPCM750 watchdog"
 639	depends on ARCH_NPCM || COMPILE_TEST
 640	default y if ARCH_NPCM7XX
 641	select WATCHDOG_CORE
 642	help
 643	  Say Y here to include Watchdog timer support for the
 644	  watchdog embedded into the NPCM7xx.
 645	  This watchdog is used to reset the system and thus cannot be
 646	  compiled as a module.
 647
 648config TWL4030_WATCHDOG
 649	tristate "TWL4030 Watchdog"
 650	depends on TWL4030_CORE
 651	select WATCHDOG_CORE
 652	help
 653	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
 654	  watchdog timer support for TWL4030 chips.
 655
 656config STMP3XXX_RTC_WATCHDOG
 657	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
 658	depends on RTC_DRV_STMP || COMPILE_TEST
 659	select WATCHDOG_CORE
 660	help
 661	  Say Y here to include support for the watchdog timer inside
 662	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
 663	  To compile this driver as a module, choose M here: the
 664	  module will be called stmp3xxx_rtc_wdt.
 665
 666config TS4800_WATCHDOG
 667	tristate "TS-4800 Watchdog"
 668	depends on HAS_IOMEM && OF
 669	depends on SOC_IMX51 || COMPILE_TEST
 670	select WATCHDOG_CORE
 671	select MFD_SYSCON
 672	help
 673	  Technologic Systems TS-4800 has watchdog timer implemented in
 674	  an external FPGA. Say Y here if you want to support for the
 675	  watchdog timer on TS-4800 board.
 
 676
 677config TS72XX_WATCHDOG
 678	tristate "TS-72XX SBC Watchdog"
 679	depends on MACH_TS72XX || COMPILE_TEST
 680	select WATCHDOG_CORE
 681	help
 682	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
 683	  watchdog timer implemented in a external CPLD chip. Say Y here
 684	  if you want to support for the watchdog timer on TS-72XX boards.
 685
 686	  To compile this driver as a module, choose M here: the
 687	  module will be called ts72xx_wdt.
 688
 689config MAX63XX_WATCHDOG
 690	tristate "Max63xx watchdog"
 691	depends on HAS_IOMEM
 692	select WATCHDOG_CORE
 693	help
 694	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
 695
 696config MAX77620_WATCHDOG
 697	tristate "Maxim Max77620 Watchdog Timer"
 698	depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
 699	select WATCHDOG_CORE
 700	help
 701	  This is the driver for the Max77620 watchdog timer.
 702	  Say 'Y' here to enable the watchdog timer support for
 703	  MAX77620 chips. To compile this driver as a module,
 704	  choose M here: the module will be called max77620_wdt.
 705
 706config IMX2_WDT
 707	tristate "IMX2+ Watchdog"
 708	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
 709	select REGMAP_MMIO
 710	select WATCHDOG_CORE
 711	help
 712	  This is the driver for the hardware watchdog
 713	  on the Freescale IMX2 and later processors.
 714	  If you have one of these processors and wish to have
 715	  watchdog support enabled, say Y, otherwise say N.
 716
 717	  To compile this driver as a module, choose M here: the
 718	  module will be called imx2_wdt.
 719
 720config IMX_SC_WDT
 721	tristate "IMX SC Watchdog"
 722	depends on HAVE_ARM_SMCCC
 723	depends on IMX_SCU || COMPILE_TEST
 724	select WATCHDOG_CORE
 725	help
 726	  This is the driver for the system controller watchdog
 727	  on the NXP i.MX SoCs with system controller inside, the
 728	  watchdog driver will call ARM SMC API and trap into
 729	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
 730	  will request system controller to execute the operations.
 731	  If you have one of these processors and wish to have
 732	  watchdog support enabled, say Y, otherwise say N.
 733
 734	  To compile this driver as a module, choose M here: the
 735	  module will be called imx_sc_wdt.
 736
 737config IMX7ULP_WDT
 738	tristate "IMX7ULP Watchdog"
 739	depends on ARCH_MXC || COMPILE_TEST
 740	select WATCHDOG_CORE
 741	help
 742	  This is the driver for the hardware watchdog on the Freescale
 743	  IMX7ULP and later processors. If you have one of these
 744	  processors and wish to have watchdog support enabled,
 745	  say Y, otherwise say N.
 746
 747	  To compile this driver as a module, choose M here: the
 748	  module will be called imx7ulp_wdt.
 749
 750config DB500_WATCHDOG
 751	tristate "ST-Ericsson DB800 watchdog"
 752	depends on MFD_DB8500_PRCMU
 753	select WATCHDOG_CORE
 754	default y
 755	help
 756	  Say Y here to include Watchdog timer support for the watchdog
 757	  existing in the prcmu of ST-Ericsson DB8500 platform.
 758
 759	  To compile this driver as a module, choose M here: the
 760	  module will be called db500_wdt.
 761
 762config RETU_WATCHDOG
 763	tristate "Retu watchdog"
 764	depends on MFD_RETU
 765	select WATCHDOG_CORE
 766	help
 767	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
 768	  N810). At least on N800 the watchdog cannot be disabled, so
 769	  this driver is essential and you should enable it.
 770
 771	  To compile this driver as a module, choose M here: the
 772	  module will be called retu_wdt.
 773
 774config MOXART_WDT
 775	tristate "MOXART watchdog"
 776	depends on ARCH_MOXART || COMPILE_TEST
 777	help
 778	  Say Y here to include Watchdog timer support for the watchdog
 779	  existing on the MOXA ART SoC series platforms.
 780
 781	  To compile this driver as a module, choose M here: the
 782	  module will be called moxart_wdt.
 783
 784config ST_LPC_WATCHDOG
 785	tristate "STMicroelectronics LPC Watchdog"
 786	depends on ARCH_STI || COMPILE_TEST
 787	depends on OF
 788	select WATCHDOG_CORE
 789	help
 790	  Say Y here to include STMicroelectronics Low Power Controller
 791	  (LPC) based Watchdog timer support.
 792
 793	  To compile this driver as a module, choose M here: the
 794	  module will be called st_lpc_wdt.
 795
 796config TEGRA_WATCHDOG
 797	tristate "Tegra watchdog"
 798	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
 799	select WATCHDOG_CORE
 800	help
 801	  Say Y here to include support for the watchdog timer
 802	  embedded in NVIDIA Tegra SoCs.
 803
 804	  To compile this driver as a module, choose M here: the
 805	  module will be called tegra_wdt.
 806
 807config QCOM_WDT
 808	tristate "QCOM watchdog"
 809	depends on HAS_IOMEM
 810	depends on ARCH_QCOM || COMPILE_TEST
 811	select WATCHDOG_CORE
 812	help
 813	  Say Y here to include Watchdog timer support for the watchdog found
 814	  on QCOM chipsets.  Currently supported targets are the MSM8960,
 815	  APQ8064, and IPQ8064.
 816
 817	  To compile this driver as a module, choose M here: the
 818	  module will be called qcom_wdt.
 819
 820config MESON_GXBB_WATCHDOG
 821	tristate "Amlogic Meson GXBB SoCs watchdog support"
 822	depends on ARCH_MESON || COMPILE_TEST
 823	select WATCHDOG_CORE
 824	help
 825	  Say Y here to include support for the watchdog timer
 826	  in Amlogic Meson GXBB SoCs.
 827	  To compile this driver as a module, choose M here: the
 828	  module will be called meson_gxbb_wdt.
 829
 830config MESON_WATCHDOG
 831	tristate "Amlogic Meson SoCs watchdog support"
 832	depends on ARCH_MESON || COMPILE_TEST
 833	select WATCHDOG_CORE
 834	help
 835	  Say Y here to include support for the watchdog timer
 836	  in Amlogic Meson SoCs.
 837	  To compile this driver as a module, choose M here: the
 838	  module will be called meson_wdt.
 839
 840config MEDIATEK_WATCHDOG
 841	tristate "Mediatek SoCs watchdog support"
 842	depends on ARCH_MEDIATEK || COMPILE_TEST
 843	default ARCH_MEDIATEK
 844	select WATCHDOG_CORE
 845	select RESET_CONTROLLER
 846	help
 847	  Say Y here to include support for the watchdog timer
 848	  in Mediatek SoCs.
 849	  To compile this driver as a module, choose M here: the
 850	  module will be called mtk_wdt.
 851
 852config DIGICOLOR_WATCHDOG
 853	tristate "Conexant Digicolor SoCs watchdog support"
 854	depends on ARCH_DIGICOLOR || COMPILE_TEST
 855	select WATCHDOG_CORE
 856	help
 857	  Say Y here to include support for the watchdog timer
 858	  in Conexant Digicolor SoCs.
 859	  To compile this driver as a module, choose M here: the
 860	  module will be called digicolor_wdt.
 861
 862config ARM_SMC_WATCHDOG
 863	tristate "ARM Secure Monitor Call based watchdog support"
 864	depends on ARM || ARM64
 865	depends on OF
 866	depends on HAVE_ARM_SMCCC
 867	select WATCHDOG_CORE
 868	help
 869	  Say Y here to include support for a watchdog timer
 870	  implemented by the EL3 Secure Monitor on ARM platforms.
 871	  Requires firmware support.
 872	  To compile this driver as a module, choose M here: the
 873	  module will be called arm_smc_wdt.
 874
 875config LPC18XX_WATCHDOG
 876	tristate "LPC18xx/43xx Watchdog"
 877	depends on ARCH_LPC18XX || COMPILE_TEST
 878	depends on HAS_IOMEM
 879	select WATCHDOG_CORE
 880	help
 881	  Say Y here if to include support for the watchdog timer
 882	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
 883	  processors.
 884	  To compile this driver as a module, choose M here: the
 885	  module will be called lpc18xx_wdt.
 886
 887config RENESAS_WDT
 888	tristate "Renesas WDT Watchdog"
 889	depends on ARCH_RENESAS || COMPILE_TEST
 890	select WATCHDOG_CORE
 891	help
 892	  This driver adds watchdog support for the integrated watchdogs in the
 893	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
 894
 895config RENESAS_RZAWDT
 896	tristate "Renesas RZ/A WDT Watchdog"
 897	depends on ARCH_RENESAS || COMPILE_TEST
 898	select WATCHDOG_CORE
 899	help
 900	  This driver adds watchdog support for the integrated watchdogs in the
 901	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
 902
 903config RENESAS_RZN1WDT
 904	tristate "Renesas RZ/N1 watchdog"
 905	depends on ARCH_RENESAS || COMPILE_TEST
 906	select WATCHDOG_CORE
 907	help
 908	  This driver adds watchdog support for the integrated watchdogs in the
 909	  Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system.
 910
 911config RENESAS_RZG2LWDT
 912	tristate "Renesas RZ/G2L WDT Watchdog"
 913	depends on ARCH_RENESAS || COMPILE_TEST
 914	select WATCHDOG_CORE
 915	help
 916	  This driver adds watchdog support for the integrated watchdogs in the
 917	  Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
 918
 919config ASPEED_WATCHDOG
 920	tristate "Aspeed BMC watchdog support"
 921	depends on ARCH_ASPEED || COMPILE_TEST
 922	select WATCHDOG_CORE
 923	help
 924	  Say Y here to include support for the watchdog timer
 925	  in Aspeed BMC SoCs.
 926
 927	  This driver is required to reboot the SoC.
 928
 929	  To compile this driver as a module, choose M here: the
 930	  module will be called aspeed_wdt.
 931
 932config STM32_WATCHDOG
 933	tristate "STM32 Independent WatchDoG (IWDG) support"
 934	depends on ARCH_STM32 || COMPILE_TEST
 935	select WATCHDOG_CORE
 936	default y
 937	help
 938	  Say Y here to include support for the watchdog timer
 939	  in stm32 SoCs.
 940
 941	  To compile this driver as a module, choose M here: the
 942	  module will be called stm32_iwdg.
 943
 944config STPMIC1_WATCHDOG
 945	tristate "STPMIC1 PMIC watchdog support"
 946	depends on MFD_STPMIC1
 947	select WATCHDOG_CORE
 948	help
 949	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
 950	  If the watchdog timer expires, stpmic1 will shut down all its power
 951	  supplies.
 952
 953	  To compile this driver as a module, choose M here: the
 954	  module will be called spmic1_wdt.
 955
 956config UNIPHIER_WATCHDOG
 957	tristate "UniPhier watchdog support"
 958	depends on ARCH_UNIPHIER || COMPILE_TEST
 959	depends on OF && MFD_SYSCON
 960	select WATCHDOG_CORE
 961	help
 962	  Say Y here to include support watchdog timer embedded
 963	  into the UniPhier system.
 964
 965	  To compile this driver as a module, choose M here: the
 966	  module will be called uniphier_wdt.
 967
 968config RTD119X_WATCHDOG
 969	bool "Realtek RTD119x/RTD129x watchdog support"
 970	depends on ARCH_REALTEK || COMPILE_TEST
 971	depends on OF
 972	select WATCHDOG_CORE
 973	default ARCH_REALTEK
 974	help
 975	  Say Y here to include support for the watchdog timer in
 976	  Realtek RTD1295 SoCs.
 977
 978config REALTEK_OTTO_WDT
 979	tristate "Realtek Otto MIPS watchdog support"
 980	depends on MACH_REALTEK_RTL || COMPILE_TEST
 981	depends on COMMON_CLK
 982	select WATCHDOG_CORE
 983	default MACH_REALTEK_RTL
 984	help
 985	  Say Y here to include support for the watchdog timer on Realtek
 986	  RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
 987	  notifications and system reset on timeout.
 988
 989	  When built as a module this will be called realtek_otto_wdt.
 990
 991config SPRD_WATCHDOG
 992	tristate "Spreadtrum watchdog support"
 993	depends on ARCH_SPRD || COMPILE_TEST
 994	select WATCHDOG_CORE
 995	help
 996	  Say Y here to include watchdog timer supported
 997	  by Spreadtrum system.
 998
 999config PM8916_WATCHDOG
1000	tristate "QCOM PM8916 pmic watchdog"
1001	depends on OF && MFD_SPMI_PMIC
1002	select WATCHDOG_CORE
1003	help
1004	  Say Y here to include support watchdog timer embedded into the
1005	  pm8916 module.
1006
1007config VISCONTI_WATCHDOG
1008	tristate "Toshiba Visconti series watchdog support"
1009	depends on ARCH_VISCONTI || COMPILE_TEST
1010	select WATCHDOG_CORE
1011	help
1012	  Say Y here to include support for the watchdog timer in Toshiba
1013	  Visconti SoCs.
1014
1015config MSC313E_WATCHDOG
1016	tristate "MStar MSC313e watchdog"
1017	depends on ARCH_MSTARV7 || COMPILE_TEST
1018	select WATCHDOG_CORE
1019	help
1020	  Say Y here to include support for the Watchdog timer embedded
1021	  into MStar MSC313e chips. This will reboot your system when the
1022	  timeout is reached.
1023
1024	  To compile this driver as a module, choose M here: the
1025	  module will be called msc313e_wdt.
1026
1027config APPLE_WATCHDOG
1028	tristate "Apple SoC watchdog"
1029	depends on ARCH_APPLE || COMPILE_TEST
1030	select WATCHDOG_CORE
1031	help
1032	  Say Y here to include support for the Watchdog found in Apple
1033	  SoCs such as the M1. Next to the common watchdog features this
1034	  driver is also required in order to reboot these SoCs.
1035
1036	  To compile this driver as a module, choose M here: the
1037	  module will be called apple_wdt.
1038
1039config SUNPLUS_WATCHDOG
1040	tristate "Sunplus watchdog support"
1041	depends on ARCH_SUNPLUS || COMPILE_TEST
1042	select WATCHDOG_CORE
1043	help
1044	  Say Y here to include support for the watchdog timer
1045	  in Sunplus SoCs.
1046
1047	  To compile this driver as a module, choose M here: the
1048	  module will be called sunplus_wdt.
1049
1050# X86 (i386 + ia64 + x86_64) Architecture
1051
1052config ACQUIRE_WDT
1053	tristate "Acquire SBC Watchdog Timer"
1054	depends on X86
1055	help
1056	  This is the driver for the hardware watchdog on Single Board
1057	  Computers produced by Acquire Inc (and others). This watchdog
1058	  simply watches your kernel to make sure it doesn't freeze, and if
1059	  it does, it reboots your computer after a certain amount of time.
1060
1061	  To compile this driver as a module, choose M here: the
1062	  module will be called acquirewdt.
1063
1064	  Most people will say N.
1065
1066config ADVANTECH_WDT
1067	tristate "Advantech SBC Watchdog Timer"
1068	depends on X86 || COMPILE_TEST
1069	help
1070	  If you are configuring a Linux kernel for the Advantech single-board
1071	  computer, say `Y' here to support its built-in watchdog timer
1072	  feature. More information can be found at
1073	  <https://www.advantech.com.tw/products/>
1074
1075config ADVANTECH_EC_WDT
1076	tristate "Advantech Embedded Controller Watchdog Timer"
1077	depends on X86 || COMPILE_TEST
1078	select ISA_BUS_API
1079	select WATCHDOG_CORE
1080	help
1081		This driver supports Advantech products with ITE based Embedded Controller.
1082		It does not support Advantech products with other ECs or without EC.
1083
1084config ALIM1535_WDT
1085	tristate "ALi M1535 PMU Watchdog Timer"
1086	depends on (X86 || COMPILE_TEST) && PCI
1087	help
1088	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1089
1090	  To compile this driver as a module, choose M here: the
1091	  module will be called alim1535_wdt.
1092
1093	  Most people will say N.
1094
1095config ALIM7101_WDT
1096	tristate "ALi M7101 PMU Computer Watchdog"
1097	depends on PCI
1098	help
1099	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1100	  as used in the x86 Cobalt servers and also found in some
1101	  SPARC Netra servers too.
1102
1103	  To compile this driver as a module, choose M here: the
1104	  module will be called alim7101_wdt.
1105
1106	  Most people will say N.
1107
1108config EBC_C384_WDT
1109	tristate "WinSystems EBC-C384 Watchdog Timer"
1110	depends on X86 || COMPILE_TEST
1111	select ISA_BUS_API
1112	select WATCHDOG_CORE
1113	help
1114	  Enables watchdog timer support for the watchdog timer on the
1115	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1116	  the timeout module parameter.
1117
1118config EXAR_WDT
1119	tristate "Exar Watchdog Timer"
1120	depends on X86 || COMPILE_TEST
1121	select WATCHDOG_CORE
1122	help
1123	  Enables watchdog timer support for the watchdog timer present
1124	  in some Exar/MaxLinear UART chips like the XR28V38x.
1125
1126	  To compile this driver as a module, choose M here: the
1127	  module will be called exar_wdt.
1128
1129config F71808E_WDT
1130	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1131	depends on X86 || COMPILE_TEST
1132	select WATCHDOG_CORE
1133	help
1134	  This is the driver for the hardware watchdog on the Fintek F71808E,
1135	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1136	  F81866 Super I/O controllers.
1137
1138	  You can compile this driver directly into the kernel, or use
1139	  it as a module.  The module will be called f71808e_wdt.
1140
1141config SP5100_TCO
1142	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1143	depends on (X86 || COMPILE_TEST) && PCI
1144	select WATCHDOG_CORE
1145	help
1146	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1147	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1148	  the machine after its expiration. The expiration time can be
1149	  configured with the "heartbeat" parameter.
1150
1151	  To compile this driver as a module, choose M here: the
1152	  module will be called sp5100_tco.
1153
1154config GEODE_WDT
1155	tristate "AMD Geode CS5535/CS5536 Watchdog"
1156	depends on CS5535_MFGPT
1157	help
1158	  This driver enables a watchdog capability built into the
1159	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1160	  processors.  This watchdog watches your kernel to make sure
1161	  it doesn't freeze, and if it does, it reboots your computer after
1162	  a certain amount of time.
1163
1164	  You can compile this driver directly into the kernel, or use
1165	  it as a module.  The module will be called geodewdt.
1166
1167config SC520_WDT
1168	tristate "AMD Elan SC520 processor Watchdog"
1169	depends on MELAN || COMPILE_TEST
1170	help
1171	  This is the driver for the hardware watchdog built in to the
1172	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1173	  This watchdog simply watches your kernel to make sure it doesn't
1174	  freeze, and if it does, it reboots your computer after a certain
1175	  amount of time.
1176
1177	  You can compile this driver directly into the kernel, or use
1178	  it as a module.  The module will be called sc520_wdt.
1179
1180config SBC_FITPC2_WATCHDOG
1181	tristate "Compulab SBC-FITPC2 watchdog"
1182	depends on X86 || COMPILE_TEST
1183	help
1184	  This is the driver for the built-in watchdog timer on the fit-PC2,
1185	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1186
1187	  It's possible to enable the watchdog timer either from BIOS (F2) or
1188	  from booted Linux.
1189	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1190	  operational range.
1191
1192	  Entering BIOS setup temporarily disables watchdog operation regardless
1193	  of current state, so system will not be restarted while user is in
1194	  BIOS setup.
1195
1196	  Once the watchdog is enabled the system will be restarted every
1197	  "Watchdog Timer Value" period, so to prevent it user can restart or
1198	  disable the watchdog.
1199
1200	  To compile this driver as a module, choose M here: the
1201	  module will be called sbc_fitpc2_wdt.
1202
1203	  Most people will say N.
1204
1205config EUROTECH_WDT
1206	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1207	depends on X86 || COMPILE_TEST
1208	help
1209	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1210	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1211	  information are at <http://www.eurotech.it/>.
1212
1213config IB700_WDT
1214	tristate "IB700 SBC Watchdog Timer"
1215	depends on X86 || COMPILE_TEST
1216	help
1217	  This is the driver for the hardware watchdog on the IB700 Single
1218	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1219	  watchdog simply watches your kernel to make sure it doesn't freeze,
1220	  and if it does, it reboots your computer after a certain amount of time.
1221
1222	  This driver is like the WDT501 driver but for slightly different
1223	  hardware.
1224
1225	  To compile this driver as a module, choose M here: the
1226	  module will be called ib700wdt.
1227
1228	  Most people will say N.
1229
1230config IBMASR
1231	tristate "IBM Automatic Server Restart"
1232	depends on X86 || COMPILE_TEST
1233	help
1234	  This is the driver for the IBM Automatic Server Restart watchdog
1235	  timer built-in into some eServer xSeries machines.
1236
1237	  To compile this driver as a module, choose M here: the
1238	  module will be called ibmasr.
1239
1240config WAFER_WDT
1241	tristate "ICP Single Board Computer Watchdog Timer"
1242	depends on X86 || COMPILE_TEST
1243	help
1244	  This is a driver for the hardware watchdog on the ICP Single
1245	  Board Computer. This driver is working on (at least) the following
1246	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1247
1248	  To compile this driver as a module, choose M here: the
1249	  module will be called wafer5823wdt.
1250
1251config I6300ESB_WDT
1252	tristate "Intel 6300ESB Timer/Watchdog"
1253	depends on PCI
1254	select WATCHDOG_CORE
1255	help
1256	  Hardware driver for the watchdog timer built into the Intel
1257	  6300ESB controller hub.
1258
1259	  To compile this driver as a module, choose M here: the
1260	  module will be called i6300esb.
1261
1262config IE6XX_WDT
1263	tristate "Intel Atom E6xx Watchdog"
1264	depends on (X86 || COMPILE_TEST) && PCI
1265	select WATCHDOG_CORE
1266	select MFD_CORE
1267	select LPC_SCH
1268	help
1269	  Hardware driver for the watchdog timer built into the Intel
1270	  Atom E6XX (TunnelCreek) processor.
1271
1272	  To compile this driver as a module, choose M here: the
1273	  module will be called ie6xx_wdt.
1274
1275config INTEL_MID_WATCHDOG
1276	tristate "Intel MID Watchdog Timer"
1277	depends on X86_INTEL_MID
1278	select WATCHDOG_CORE
1279	help
1280	  Watchdog timer driver built into the Intel SCU for Intel MID
1281	  Platforms.
1282
1283	  This driver currently supports only the watchdog evolution
1284	  implementation in SCU, available for Merrifield generation.
1285
1286	  To compile this driver as a module, choose M here.
1287
1288config ITCO_WDT
1289	tristate "Intel TCO Timer/Watchdog"
1290	depends on X86 && PCI
1291	select WATCHDOG_CORE
1292	depends on I2C || I2C=n
1293	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1294	select LPC_ICH if !EXPERT
1295	select I2C_I801 if !EXPERT && I2C
1296	help
1297	  Hardware driver for the intel TCO timer based watchdog devices.
1298	  These drivers are included in the Intel 82801 I/O Controller
1299	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1300	  controller hub.
1301
1302	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1303	  that will reboot the machine after its second expiration. The
1304	  expiration time can be configured with the "heartbeat" parameter.
1305
1306	  On some motherboards the driver may fail to reset the chipset's
1307	  NO_REBOOT flag which prevents the watchdog from rebooting the
1308	  machine. If this is the case you will get a kernel message like
1309	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1310
1311	  To compile this driver as a module, choose M here: the
1312	  module will be called iTCO_wdt.
1313
1314config ITCO_VENDOR_SUPPORT
1315	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1316	depends on ITCO_WDT
1317	help
1318	  Add vendor specific support to the intel TCO timer based watchdog
1319	  devices. At this moment we only have additional support for some
1320	  SuperMicro Inc. motherboards.
1321
1322config IT8712F_WDT
1323	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1324	depends on X86 || COMPILE_TEST
1325	help
1326	  This is the driver for the built-in watchdog timer on the IT8712F
1327	  Super I/0 chipset used on many motherboards.
1328
1329	  If the driver does not work, then make sure that the game port in
1330	  the BIOS is enabled.
1331
1332	  To compile this driver as a module, choose M here: the
1333	  module will be called it8712f_wdt.
1334
1335config IT87_WDT
1336	tristate "IT87 Watchdog Timer"
1337	depends on X86 || COMPILE_TEST
1338	select WATCHDOG_CORE
1339	help
1340	  This is the driver for the hardware watchdog on the ITE IT8607,
1341	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1342	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1343	  IT8783 Super I/O chips.
 
1344
1345	  This watchdog simply watches your kernel to make sure it doesn't
1346	  freeze, and if it does, it reboots your computer after a certain
1347	  amount of time.
1348
1349	  To compile this driver as a module, choose M here: the module will
1350	  be called it87_wdt.
1351
1352config HP_WATCHDOG
1353	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1354	select WATCHDOG_CORE
1355	depends on (ARM64 || X86 || COMPILE_TEST) && PCI
1356	help
1357	  A software monitoring watchdog and NMI handling driver. This driver
1358	  will detect lockups and provide a stack trace. This is a driver that
1359	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1360	  To compile this driver as a module, choose M here: the module will be
1361	  called hpwdt.
1362
1363config HPWDT_NMI_DECODING
1364	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1365	depends on X86 && HP_WATCHDOG
1366	default y
1367	help
1368	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1369	  "Generate NMI to System" virtual button.  When an NMI is claimed
1370	  by the driver, panic is called.
1371
1372config KEMPLD_WDT
1373	tristate "Kontron COM Watchdog Timer"
1374	depends on MFD_KEMPLD
1375	select WATCHDOG_CORE
1376	help
1377	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1378	  (ETXexpress) modules
1379
1380	  This driver can also be built as a module. If so, the module will be
1381	  called kempld_wdt.
1382
1383config SC1200_WDT
1384	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1385	depends on X86 || COMPILE_TEST
1386	help
1387	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1388	  watchdog cards as found on the SC1200. This watchdog is mainly used
1389	  for power management purposes and can be used to power down the device
1390	  during inactivity periods (includes interrupt activity monitoring).
1391
1392	  To compile this driver as a module, choose M here: the
1393	  module will be called sc1200wdt.
1394
1395	  Most people will say N.
1396
1397config SCx200_WDT
1398	tristate "National Semiconductor SCx200 Watchdog"
1399	depends on SCx200 && PCI
1400	help
1401	  Enable the built-in watchdog timer support on the National
1402	  Semiconductor SCx200 processors.
1403
1404	  If compiled as a module, it will be called scx200_wdt.
1405
1406config PC87413_WDT
1407	tristate "NS PC87413 watchdog"
1408	depends on X86 || COMPILE_TEST
1409	help
1410	  This is the driver for the hardware watchdog on the PC87413 chipset
1411	  This watchdog simply watches your kernel to make sure it doesn't
1412	  freeze, and if it does, it reboots your computer after a certain
1413	  amount of time.
1414
1415	  To compile this driver as a module, choose M here: the
1416	  module will be called pc87413_wdt.
1417
1418	  Most people will say N.
1419
1420config NV_TCO
1421	tristate "nVidia TCO Timer/Watchdog"
1422	depends on (X86 || COMPILE_TEST) && PCI
1423	help
1424	  Hardware driver for the TCO timer built into the nVidia Hub family
1425	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1426	  watchdog timer that will reboot the machine after its second
1427	  expiration. The expiration time can be configured with the
1428	  "heartbeat" parameter.
1429
1430	  On some motherboards the driver may fail to reset the chipset's
1431	  NO_REBOOT flag which prevents the watchdog from rebooting the
1432	  machine. If this is the case you will get a kernel message like
1433	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1434
1435	  To compile this driver as a module, choose M here: the
1436	  module will be called nv_tco.
1437
1438config RDC321X_WDT
1439	tristate "RDC R-321x SoC watchdog"
1440	depends on X86_RDC321X || COMPILE_TEST
1441	depends on PCI
1442	help
1443	  This is the driver for the built in hardware watchdog
1444	  in the RDC R-321x SoC.
1445
1446	  To compile this driver as a module, choose M here: the
1447	  module will be called rdc321x_wdt.
1448
1449config 60XX_WDT
1450	tristate "SBC-60XX Watchdog Timer"
1451	depends on X86 || COMPILE_TEST
1452	help
1453	  This driver can be used with the watchdog timer found on some
1454	  single board computers, namely the 6010 PII based computer.
1455	  It may well work with other cards.  It reads port 0x443 to enable
1456	  and re-set the watchdog timer, and reads port 0x45 to disable
1457	  the watchdog.  If you have a card that behave in similar ways,
1458	  you can probably make this driver work with your card as well.
1459
1460	  You can compile this driver directly into the kernel, or use
1461	  it as a module.  The module will be called sbc60xxwdt.
1462
1463config SBC8360_WDT
1464	tristate "SBC8360 Watchdog Timer"
1465	depends on X86_32
1466	help
1467
1468	  This is the driver for the hardware watchdog on the SBC8360 Single
1469	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1470
1471	  To compile this driver as a module, choose M here: the
1472	  module will be called sbc8360.
1473
1474	  Most people will say N.
1475
1476config SBC7240_WDT
1477	tristate "SBC Nano 7240 Watchdog Timer"
1478	depends on X86_32 && !UML
1479	help
1480	  This is the driver for the hardware watchdog found on the IEI
1481	  single board computers EPIC Nano 7240 (and likely others). This
1482	  watchdog simply watches your kernel to make sure it doesn't freeze,
1483	  and if it does, it reboots your computer after a certain amount of
1484	  time.
1485
1486	  To compile this driver as a module, choose M here: the
1487	  module will be called sbc7240_wdt.
1488
1489config CPU5_WDT
1490	tristate "SMA CPU5 Watchdog"
1491	depends on X86 || COMPILE_TEST
1492	help
1493	  TBD.
1494	  To compile this driver as a module, choose M here: the
1495	  module will be called cpu5wdt.
1496
1497config SMSC_SCH311X_WDT
1498	tristate "SMSC SCH311X Watchdog Timer"
1499	depends on X86 || COMPILE_TEST
1500	help
1501	  This is the driver for the hardware watchdog timer on the
1502	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1503	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1504	  serial ports).
1505
1506	  To compile this driver as a module, choose M here: the
1507	  module will be called sch311x_wdt.
1508
1509config SMSC37B787_WDT
1510	tristate "Winbond SMsC37B787 Watchdog Timer"
1511	depends on X86 || COMPILE_TEST
1512	help
1513	  This is the driver for the hardware watchdog component on the
1514	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1515	  from Vision Systems and maybe others.
1516
1517	  This watchdog simply watches your kernel to make sure it doesn't
1518	  freeze, and if it does, it reboots your computer after a certain
1519	  amount of time.
1520
1521	  Usually a userspace daemon will notify the kernel WDT driver that
1522	  userspace is still alive, at regular intervals.
1523
1524	  To compile this driver as a module, choose M here: the
1525	  module will be called smsc37b787_wdt.
1526
1527	  Most people will say N.
1528
1529config TQMX86_WDT
1530	tristate "TQ-Systems TQMX86 Watchdog Timer"
1531	depends on X86 || COMPILE_TEST
1532	select WATCHDOG_CORE
1533	help
1534	  This is the driver for the hardware watchdog timer in the TQMX86 IO
1535	  controller found on some of their ComExpress Modules.
1536
1537	  To compile this driver as a module, choose M here; the module
1538	  will be called tqmx86_wdt.
1539
1540	  Most people will say N.
1541
1542config VIA_WDT
1543	tristate "VIA Watchdog Timer"
1544	depends on (X86 || COMPILE_TEST) && PCI
1545	select WATCHDOG_CORE
1546	help
1547	  This is the driver for the hardware watchdog timer on VIA
1548	  southbridge chipset CX700, VX800/VX820 or VX855/VX875.
 
 
 
1549
1550	  To compile this driver as a module, choose M here; the module
1551	  will be called via_wdt.
1552
1553	  Most people will say N.
1554
1555config W83627HF_WDT
1556	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1557	depends on X86 || COMPILE_TEST
1558	select WATCHDOG_CORE
1559	help
1560	  This is the driver for the hardware watchdog on the following
1561	  Super I/O chips.
1562		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1563		W83637HF
1564		W83667HG/HG-B
1565		W83687THF
1566		W83697HF
1567		W83697UG
1568		NCT6775
1569		NCT6776
1570		NCT6779
1571		NCT6791
1572		NCT6792
1573		NCT6102D/04D/06D
1574		NCT6116D
1575
 
 
 
 
 
 
 
 
1576	  This watchdog simply watches your kernel to make sure it doesn't
1577	  freeze, and if it does, it reboots your computer after a certain
1578	  amount of time.
1579
1580	  To compile this driver as a module, choose M here: the
1581	  module will be called w83627hf_wdt.
1582
1583	  Most people will say N.
1584
1585config W83877F_WDT
1586	tristate "W83877F (EMACS) Watchdog Timer"
1587	depends on X86 || COMPILE_TEST
1588	help
1589	  This is the driver for the hardware watchdog on the W83877F chipset
1590	  as used in EMACS PC-104 motherboards (and likely others).  This
1591	  watchdog simply watches your kernel to make sure it doesn't freeze,
1592	  and if it does, it reboots your computer after a certain amount of
1593	  time.
1594
1595	  To compile this driver as a module, choose M here: the
1596	  module will be called w83877f_wdt.
1597
1598	  Most people will say N.
1599
1600config W83977F_WDT
1601	tristate "W83977F (PCM-5335) Watchdog Timer"
1602	depends on X86 || COMPILE_TEST
1603	help
1604	  This is the driver for the hardware watchdog on the W83977F I/O chip
1605	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1606	  watchdog simply watches your kernel to make sure it doesn't freeze,
1607	  and if it does, it reboots your computer after a certain amount of
1608	  time.
1609
1610	  To compile this driver as a module, choose M here: the
1611	  module will be called w83977f_wdt.
1612
1613config MACHZ_WDT
1614	tristate "ZF MachZ Watchdog"
1615	depends on X86 || COMPILE_TEST
1616	help
1617	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1618	  N.  This is the driver for the watchdog timer built-in on that
1619	  processor using ZF-Logic interface.  This watchdog simply watches
1620	  your kernel to make sure it doesn't freeze, and if it does, it
1621	  reboots your computer after a certain amount of time.
1622
1623	  To compile this driver as a module, choose M here: the
1624	  module will be called machzwd.
1625
1626config SBC_EPX_C3_WATCHDOG
1627	tristate "Winsystems SBC EPX-C3 watchdog"
1628	depends on X86 || COMPILE_TEST
1629	help
1630	  This is the driver for the built-in watchdog timer on the EPX-C3
1631	  Single-board computer made by Winsystems, Inc.
1632
1633	  *Note*: This hardware watchdog is not probeable and thus there
1634	  is no way to know if writing to its IO address will corrupt
1635	  your system or have any real effect.  The only way to be sure
1636	  that this driver does what you want is to make sure you
1637	  are running it on an EPX-C3 from Winsystems with the watchdog
1638	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1639	  IO ports.  Basically, the assumption is made that if you compile
1640	  this driver into your kernel and/or load it as a module, that you
1641	  know what you are doing and that you are in fact running on an
1642	  EPX-C3 board!
1643
1644	  To compile this driver as a module, choose M here: the
1645	  module will be called sbc_epx_c3.
1646
1647config INTEL_MEI_WDT
1648	tristate "Intel MEI iAMT Watchdog"
1649	depends on INTEL_MEI && X86
1650	select WATCHDOG_CORE
1651	help
1652	  A device driver for the Intel MEI iAMT watchdog.
1653
1654	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1655	  Whenever the OS hangs or crashes, iAMT will send an event
1656	  to any subscriber to this event. The watchdog doesn't reset the
1657	  the platform.
1658
1659	  To compile this driver as a module, choose M here:
1660	  the module will be called mei_wdt.
1661
1662config NI903X_WDT
1663	tristate "NI 903x/913x Watchdog"
1664	depends on X86 && ACPI
1665	select WATCHDOG_CORE
1666	help
1667	  This is the driver for the watchdog timer on the National Instruments
1668	  903x/913x real-time controllers.
1669
1670	  To compile this driver as a module, choose M here: the module will be
1671	  called ni903x_wdt.
1672
1673config NIC7018_WDT
1674	tristate "NIC7018 Watchdog"
1675	depends on X86 && ACPI
1676	select WATCHDOG_CORE
1677	help
1678	  Support for National Instruments NIC7018 Watchdog.
1679
1680	  To compile this driver as a module, choose M here: the module will be
1681	  called nic7018_wdt.
1682
1683config SIEMENS_SIMATIC_IPC_WDT
1684	tristate "Siemens Simatic IPC Watchdog"
1685	depends on SIEMENS_SIMATIC_IPC && PCI
1686	default y
1687	select WATCHDOG_CORE
1688	select P2SB if X86
1689	help
1690	  This driver adds support for several watchdogs found in Industrial
1691	  PCs from Siemens.
1692
1693	  To compile this driver as a module, choose M here: the module will be
1694	  called simatic-ipc-wdt.
1695
1696# M68K Architecture
1697
1698config M54xx_WATCHDOG
1699	tristate "MCF54xx watchdog support"
1700	depends on M548x
1701	help
1702	  To compile this driver as a module, choose M here: the
1703	  module will be called m54xx_wdt.
1704
1705# MicroBlaze Architecture
1706
 
 
 
 
 
 
 
 
 
 
 
 
1707# MIPS Architecture
1708
1709config ATH79_WDT
1710	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1711	depends on ATH79 || (ARM && COMPILE_TEST)
1712	help
1713	  Hardware driver for the built-in watchdog timer on the Atheros
1714	  AR71XX/AR724X/AR913X SoCs.
1715
1716config BCM47XX_WDT
1717	tristate "Broadcom BCM47xx Watchdog Timer"
1718	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1719	select WATCHDOG_CORE
1720	help
1721	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1722
1723config RC32434_WDT
1724	tristate "IDT RC32434 SoC Watchdog Timer"
1725	depends on MIKROTIK_RB532
1726	help
1727	  Hardware driver for the IDT RC32434 SoC built-in
1728	  watchdog timer.
1729
1730	  To compile this driver as a module, choose M here: the
1731	  module will be called rc32434_wdt.
1732
1733config INDYDOG
1734	tristate "Indy/I2 Hardware Watchdog"
1735	depends on SGI_HAS_INDYDOG
1736	help
1737	  Hardware driver for the Indy's/I2's watchdog. This is a
1738	  watchdog timer that will reboot the machine after a 60 second
1739	  timer expired and no process has written to /dev/watchdog during
1740	  that time.
1741
1742config JZ4740_WDT
1743	tristate "Ingenic jz4740 SoC hardware watchdog"
1744	depends on MIPS || COMPILE_TEST
1745	depends on COMMON_CLK
1746	select WATCHDOG_CORE
1747	select MFD_SYSCON
1748	help
1749	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1750
1751config WDT_MTX1
1752	tristate "MTX-1 Hardware Watchdog"
1753	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1754	help
1755	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1756	  will reboot the machine after a 100 seconds timer expired.
1757
 
 
 
 
 
 
 
 
 
1758config SIBYTE_WDOG
1759	tristate "Sibyte SoC hardware watchdog"
1760	depends on CPU_SB1
1761	help
1762	  Watchdog driver for the built in watchdog hardware in Sibyte
1763	  SoC processors.  There are apparently two watchdog timers
1764	  on such processors; this driver supports only the first one,
1765	  because currently Linux only supports exporting one watchdog
1766	  to userspace.
1767
1768	  To compile this driver as a loadable module, choose M here.
1769	  The module will be called sb_wdog.
1770
 
 
 
 
 
 
1771config TXX9_WDT
1772	tristate "Toshiba TXx9 Watchdog Timer"
1773	depends on CPU_TX49XX || (MIPS && COMPILE_TEST)
1774	select WATCHDOG_CORE
1775	help
1776	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1777
1778config OCTEON_WDT
1779	tristate "Cavium OCTEON SOC family Watchdog Timer"
1780	depends on CAVIUM_OCTEON_SOC
1781	default y
1782	select WATCHDOG_CORE
1783	select EXPORT_UASM if OCTEON_WDT = m
1784	help
1785	  Hardware driver for OCTEON's on chip watchdog timer.
1786	  Enables the watchdog for all cores running Linux. It
1787	  installs a NMI handler and pokes the watchdog based on an
1788	  interrupt.  On first expiration of the watchdog, the
1789	  interrupt handler pokes it.  The second expiration causes an
1790	  NMI that prints a message. The third expiration causes a
1791	  global soft reset.
1792
1793	  When userspace has /dev/watchdog open, no poking is done
1794	  from the first interrupt, it is then only poked when the
1795	  device is written.
1796
1797config MARVELL_GTI_WDT
1798	tristate "Marvell GTI Watchdog driver"
1799	depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT)
1800	default y
1801	select WATCHDOG_CORE
1802	help
1803	  Marvell GTI hardware supports watchdog timer. First timeout
1804	  works as watchdog pretimeout and installed interrupt handler
1805	  will be called on first timeout. Hardware can generate interrupt
1806	  to SCP on second timeout but it is not enabled, so second
1807	  timeout is ignored. If device poke does not happen then system
1808	  will reboot on third timeout.
1809
1810config BCM2835_WDT
1811	tristate "Broadcom BCM2835 hardware watchdog"
1812	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1813	select WATCHDOG_CORE
1814	help
1815	  Watchdog driver for the built in watchdog hardware in Broadcom
1816	  BCM2835 SoC.
1817
1818	  To compile this driver as a loadable module, choose M here.
1819	  The module will be called bcm2835_wdt.
1820
1821config BCM_KONA_WDT
1822	tristate "BCM Kona Watchdog"
1823	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1824	select WATCHDOG_CORE
1825	help
1826	  Support for the watchdog timer on the following Broadcom BCM281xx
1827	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1828	  BCM28155 variants.
1829
1830	  Say 'Y' or 'M' here to enable the driver. The module will be called
1831	  bcm_kona_wdt.
1832
1833config BCM_KONA_WDT_DEBUG
1834	bool "DEBUGFS support for BCM Kona Watchdog"
1835	depends on BCM_KONA_WDT || COMPILE_TEST
1836	help
1837	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1838	  access to the driver's internal data structures as well as watchdog
1839	  timer hardware registres.
1840
1841	  If in doubt, say 'N'.
1842
1843config BCM7038_WDT
1844	tristate "BCM63xx/BCM7038 Watchdog"
1845	select WATCHDOG_CORE
1846	depends on HAS_IOMEM
1847	depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
1848	help
1849	  Watchdog driver for the built-in hardware in Broadcom 7038 and
1850	  later SoCs used in set-top boxes.  BCM7038 was made public
1851	  during the 2004 CES, and since then, many Broadcom chips use this
1852	  watchdog block, including some cable modem chips and DSL (63xx)
1853	  chips.
1854
1855config IMGPDC_WDT
1856	tristate "Imagination Technologies PDC Watchdog Timer"
1857	depends on HAS_IOMEM
1858	depends on MIPS || COMPILE_TEST
1859	select WATCHDOG_CORE
1860	help
1861	  Driver for Imagination Technologies PowerDown Controller
1862	  Watchdog Timer.
1863
1864	  To compile this driver as a loadable module, choose M here.
1865	  The module will be called imgpdc_wdt.
1866
1867config LANTIQ_WDT
1868	tristate "Lantiq SoC watchdog"
1869	depends on LANTIQ
1870	select WATCHDOG_CORE
1871	help
1872	  Hardware driver for the Lantiq SoC Watchdog Timer.
1873
1874config LOONGSON1_WDT
1875	tristate "Loongson1 SoC hardware watchdog"
1876	depends on MACH_LOONGSON32 || COMPILE_TEST
1877	select WATCHDOG_CORE
1878	help
1879	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1880
1881config RALINK_WDT
1882	tristate "Ralink SoC watchdog"
1883	select WATCHDOG_CORE
1884	depends on RALINK
1885	help
1886	  Hardware driver for the Ralink SoC Watchdog Timer.
1887
1888config GXP_WATCHDOG
1889	tristate "HPE GXP watchdog support"
1890	depends on ARCH_HPE_GXP || COMPILE_TEST
1891	select WATCHDOG_CORE
1892	help
1893	  Say Y here to include support for the watchdog timer
1894	  in HPE GXP SoCs.
1895
1896	  To compile this driver as a module, choose M here.
1897	  The module will be called gxp-wdt.
1898
1899config MT7621_WDT
1900	tristate "Mediatek SoC watchdog"
1901	select WATCHDOG_CORE
1902	select REGMAP_MMIO
1903	select MFD_SYSCON
1904	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
1905	help
1906	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1907
1908config PIC32_WDT
1909	tristate "Microchip PIC32 hardware watchdog"
1910	select WATCHDOG_CORE
1911	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1912	help
1913	  Watchdog driver for the built in watchdog hardware in a PIC32.
1914
1915	  Configuration bits must be set appropriately for the watchdog to be
1916	  controlled by this driver.
1917
1918	  To compile this driver as a loadable module, choose M here.
1919	  The module will be called pic32-wdt.
1920
1921config PIC32_DMT
1922	tristate "Microchip PIC32 Deadman Timer"
1923	select WATCHDOG_CORE
1924	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1925	help
1926	  Watchdog driver for PIC32 instruction fetch counting timer. This
1927	  specific timer is typically be used in mission critical and safety
1928	  critical applications, where any single failure of the software
1929	  functionality and sequencing must be detected.
1930
1931	  To compile this driver as a loadable module, choose M here.
1932	  The module will be called pic32-dmt.
1933
1934# PARISC Architecture
1935
1936# POWERPC Architecture
1937
1938config GEF_WDT
1939	tristate "GE Watchdog Timer"
1940	depends on GE_FPGA
1941	help
1942	  Watchdog timer found in a number of GE single board computers.
1943
1944config MPC5200_WDT
1945	bool "MPC52xx Watchdog Timer"
1946	depends on PPC_MPC52xx || COMPILE_TEST
1947	help
1948	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1949
1950config 8xxx_WDT
1951	tristate "MPC8xxx Platform Watchdog Timer"
1952	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1953	select WATCHDOG_CORE
1954	help
1955	  This driver is for a SoC level watchdog that exists on some
1956	  Freescale PowerPC processors. So far this driver supports:
1957	  - MPC8xx watchdogs
1958	  - MPC83xx watchdogs
1959	  - MPC86xx watchdogs
1960
1961	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1962
 
 
 
 
1963config PIKA_WDT
1964	tristate "PIKA FPGA Watchdog"
1965	depends on WARP || (PPC64 && COMPILE_TEST)
1966	default y
1967	help
1968	  This enables the watchdog in the PIKA FPGA. Currently used on
1969	  the Warp platform.
1970
1971config BOOKE_WDT
1972	tristate "PowerPC Book-E Watchdog Timer"
1973	depends on BOOKE || 4xx
1974	select WATCHDOG_CORE
1975	help
1976	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1977	  MPC85xx SOCs and the IBM PowerPC 440.
1978
1979	  Please see Documentation/watchdog/watchdog-api.rst for
1980	  more information.
1981
1982config BOOKE_WDT_DEFAULT_TIMEOUT
1983	int "PowerPC Book-E Watchdog Timer Default Timeout"
1984	depends on BOOKE_WDT
1985	default 38 if PPC_E500
1986	range 0 63 if PPC_E500
1987	default 3 if !PPC_E500
1988	range 0 3 if !PPC_E500
1989	help
1990	  Select the default watchdog timer period to be used by the PowerPC
1991	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1992	  position represented by this number transitions from zero to one.
1993
1994	  For Freescale Book-E processors, this is a number between 0 and 63.
1995	  For other Book-E processors, this is a number between 0 and 3.
1996
1997	  The value can be overridden by the wdt_period command-line parameter.
1998
1999config MEN_A21_WDT
2000	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
2001	select WATCHDOG_CORE
2002	depends on GPIOLIB || COMPILE_TEST
2003	help
2004	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
2005
2006	  The driver can also be built as a module. If so, the module will be
2007	  called mena21_wdt.
2008
2009	  If unsure select N here.
2010
2011# PPC64 Architecture
2012
2013config PSERIES_WDT
2014	tristate "POWER Architecture Platform Watchdog Timer"
2015	depends on PPC_PSERIES
2016	select WATCHDOG_CORE
2017	help
2018	  Driver for virtual watchdog timers provided by PAPR
2019	  hypervisors (e.g. PowerVM, KVM).
2020
2021config WATCHDOG_RTAS
2022	tristate "RTAS watchdog"
2023	depends on PPC_RTAS
2024	help
2025	  This driver adds watchdog support for the RTAS watchdog.
2026
2027	  To compile this driver as a module, choose M here. The module
2028	  will be called wdrtas.
2029
2030# RISC-V Architecture
2031
2032config STARFIVE_WATCHDOG
2033	tristate "StarFive Watchdog support"
2034	depends on ARCH_STARFIVE || COMPILE_TEST
2035	select WATCHDOG_CORE
2036	default ARCH_STARFIVE
2037	help
2038	  Say Y here to support the watchdog of StarFive JH7100 and JH7110
2039	  SoC. This driver can also be built as a module if choose M.
2040
2041# S390 Architecture
2042
2043config DIAG288_WATCHDOG
2044	tristate "System z diag288 Watchdog"
2045	depends on S390
2046	select WATCHDOG_CORE
2047	help
2048	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
2049	  provide a virtual watchdog timer to their guest that cause a
2050	  user define Control Program command to be executed after a
2051	  timeout.
2052	  LPAR provides a very similar interface. This driver handles
2053	  both.
2054
2055	  To compile this driver as a module, choose M here. The module
2056	  will be called diag288_wdt.
2057
2058# SUPERH (sh + sh64) Architecture
2059
2060config SH_WDT
2061	tristate "SuperH Watchdog"
2062	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
2063	select WATCHDOG_CORE
2064	help
2065	  This driver adds watchdog support for the integrated watchdog in the
2066	  SuperH processors. If you have one of these processors and wish
2067	  to have watchdog support enabled, say Y, otherwise say N.
2068
2069	  As a side note, saying Y here will automatically boost HZ to 1000
2070	  so that the timer has a chance to clear the overflow counter. On
2071	  slower systems (such as the SH-2 and SH-3) this will likely yield
2072	  some performance issues. As such, the WDT should be avoided here
2073	  unless it is absolutely necessary.
2074
2075	  To compile this driver as a module, choose M here: the
2076	  module will be called shwdt.
2077
2078# SPARC Architecture
2079
2080# SPARC64 Architecture
2081
2082config WATCHDOG_CP1XXX
2083	tristate "CP1XXX Hardware Watchdog support"
2084	depends on SPARC64 && PCI
2085	help
2086	  This is the driver for the hardware watchdog timers present on
2087	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2088
2089	  To compile this driver as a module, choose M here: the
2090	  module will be called cpwatchdog.
2091
2092	  If you do not have a CompactPCI model CP1400 or CP1500, or
2093	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2094	  you should say N to this option.
2095
2096config WATCHDOG_RIO
2097	tristate "RIO Hardware Watchdog support"
2098	depends on SPARC64 && PCI
2099	help
2100	  Say Y here to support the hardware watchdog capability on Sun RIO
2101	  machines.  The watchdog timeout period is normally one minute but
2102	  can be changed with a boot-time parameter.
2103
2104config WATCHDOG_SUN4V
2105	tristate "Sun4v Watchdog support"
2106	select WATCHDOG_CORE
2107	depends on SPARC64
2108	help
2109	  Say Y here to support the hypervisor watchdog capability embedded
2110	  in the SPARC sun4v architecture.
2111
2112	  To compile this driver as a module, choose M here. The module will
2113	  be called sun4v_wdt.
2114
2115# XTENSA Architecture
2116
2117# Xen Architecture
2118
2119config XEN_WDT
2120	tristate "Xen Watchdog support"
2121	depends on XEN
2122	select WATCHDOG_CORE
2123	help
2124	  Say Y here to support the hypervisor watchdog capability provided
2125	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2126	  minute but can be changed with a boot-time parameter.
2127
2128config UML_WATCHDOG
2129	tristate "UML watchdog"
2130	depends on UML || COMPILE_TEST
2131
2132#
2133# ISA-based Watchdog Cards
2134#
2135
2136comment "ISA-based Watchdog Cards"
2137	depends on ISA
2138
2139config PCWATCHDOG
2140	tristate "Berkshire Products ISA-PC Watchdog"
2141	depends on ISA
2142	help
2143	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2144	  This card simply watches your kernel to make sure it doesn't freeze,
2145	  and if it does, it reboots your computer after a certain amount of
2146	  time. This driver is like the WDT501 driver but for different
2147	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2148	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2149
2150	  To compile this driver as a module, choose M here: the
2151	  module will be called pcwd.
2152
2153	  Most people will say N.
2154
2155config MIXCOMWD
2156	tristate "Mixcom Watchdog"
2157	depends on ISA
2158	help
2159	  This is a driver for the Mixcom hardware watchdog cards.  This
2160	  watchdog simply watches your kernel to make sure it doesn't freeze,
2161	  and if it does, it reboots your computer after a certain amount of
2162	  time.
2163
2164	  To compile this driver as a module, choose M here: the
2165	  module will be called mixcomwd.
2166
2167	  Most people will say N.
2168
2169config WDT
2170	tristate "WDT Watchdog timer"
2171	depends on ISA
2172	help
2173	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2174	  otherwise N. It is not possible to probe for this board, which means
2175	  that you have to inform the kernel about the IO port and IRQ that
2176	  is needed (you can do this via the io and irq parameters)
2177
2178	  To compile this driver as a module, choose M here: the
2179	  module will be called wdt.
2180
2181#
2182# PCI-based Watchdog Cards
2183#
2184
2185comment "PCI-based Watchdog Cards"
2186	depends on PCI
2187
2188config PCIPCWATCHDOG
2189	tristate "Berkshire Products PCI-PC Watchdog"
2190	depends on PCI
2191	help
2192	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2193	  This card simply watches your kernel to make sure it doesn't freeze,
2194	  and if it does, it reboots your computer after a certain amount of
2195	  time. The card can also monitor the internal temperature of the PC.
2196	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2197
2198	  To compile this driver as a module, choose M here: the
2199	  module will be called pcwd_pci.
2200
2201	  Most people will say N.
2202
2203config WDTPCI
2204	tristate "PCI-WDT500/501 Watchdog timer"
2205	depends on PCI
2206	help
2207	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2208
2209	  If you have a PCI-WDT501 watchdog board then you can enable the
2210	  temperature sensor by setting the type parameter to 501.
2211
2212	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2213	  can do this via the tachometer parameter. Only do this if you have a
2214	  fan tachometer actually set up.
2215
2216	  To compile this driver as a module, choose M here: the
2217	  module will be called wdt_pci.
2218
2219#
2220# USB-based Watchdog Cards
2221#
2222
2223comment "USB-based Watchdog Cards"
2224	depends on USB
2225
2226config USBPCWATCHDOG
2227	tristate "Berkshire Products USB-PC Watchdog"
2228	depends on USB
2229	help
2230	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2231	  This card simply watches your kernel to make sure it doesn't freeze,
2232	  and if it does, it reboots your computer after a certain amount of
2233	  time. The card can also monitor the internal temperature of the PC.
2234	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2235
2236	  To compile this driver as a module, choose M here: the
2237	  module will be called pcwd_usb.
2238
2239	  Most people will say N.
2240
2241config KEEMBAY_WATCHDOG
2242	tristate "Intel Keem Bay SoC non-secure watchdog"
2243	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2244	select WATCHDOG_CORE
2245	help
2246	  This option enable support for an In-secure watchdog timer driver for
2247	  Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2248	  count unit. An interrupt will be triggered, when the count crosses
2249	  the threshold configured in the register.
2250
2251	  To compile this driver as a module, choose M here: the
2252	  module will be called keembay_wdt.
2253
2254endif # WATCHDOG