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 ZIIRAVE_WATCHDOG
 308	tristate "Zodiac RAVE Watchdog Timer"
 309	depends on I2C
 310	select WATCHDOG_CORE
 311	help
 312	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
 313	  Processor.
 314
 315	  To compile this driver as a module, choose M here: the
 316	  module will be called ziirave_wdt.
 317
 318config RAVE_SP_WATCHDOG
 319	tristate "RAVE SP Watchdog timer"
 320	depends on RAVE_SP_CORE
 321	depends on NVMEM || !NVMEM
 322	select WATCHDOG_CORE
 323	help
 324	  Support for the watchdog on RAVE SP device.
 325
 326config MLX_WDT
 327	tristate "Mellanox Watchdog"
 328	depends on MELLANOX_PLATFORM
 329	select WATCHDOG_CORE
 330	select REGMAP
 331	help
 332	  This is the driver for the hardware watchdog on Mellanox systems.
 333	  If you are going to use it, say Y here, otherwise N.
 334	  This driver can be used together with the watchdog daemon.
 335	  It can also watch your kernel to make sure it doesn't freeze,
 336	  and if it does, it reboots your system after a certain amount of
 337	  time.
 338
 339	  To compile this driver as a module, choose M here: the
 340	  module will be called mlx-wdt.
 341
 342config SL28CPLD_WATCHDOG
 343	tristate "Kontron sl28cpld Watchdog"
 344	depends on MFD_SL28CPLD || COMPILE_TEST
 345	select WATCHDOG_CORE
 346	help
 347	  Say Y here to include support for the watchdog timer
 348	  on the Kontron sl28 CPLD.
 349
 350	  To compile this driver as a module, choose M here: the
 351	  module will be called sl28cpld_wdt.
 352
 353# ALPHA Architecture
 354
 355# ARM Architecture
 356
 357config ARM_SP805_WATCHDOG
 358	tristate "ARM SP805 Watchdog"
 359	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
 360	select WATCHDOG_CORE
 361	help
 362	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
 363	  the timeout is reached.
 364
 365config ARM_SBSA_WATCHDOG
 366	tristate "ARM SBSA Generic Watchdog"
 367	depends on ARM64
 368	depends on ARM_ARCH_TIMER
 369	select WATCHDOG_CORE
 370	help
 371	  ARM SBSA Generic Watchdog has two stage timeouts:
 372	  the first signal (WS0) is for alerting the system by interrupt,
 373	  the second one (WS1) is a real hardware reset.
 374	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
 375
 376	  This driver can operate ARM SBSA Generic Watchdog as a single stage
 377	  or a two stages watchdog, it depends on the module parameter "action".
 378
 379	  Note: the maximum timeout in the two stages mode is half of that in
 380	  the single stage mode.
 381
 382	  To compile this driver as module, choose M here: The module
 383	  will be called sbsa_gwdt.
 384
 385config ARMADA_37XX_WATCHDOG
 386	tristate "Armada 37xx watchdog"
 387	depends on ARCH_MVEBU || COMPILE_TEST
 388	depends on HAS_IOMEM
 389	select MFD_SYSCON
 390	select WATCHDOG_CORE
 391	help
 392	   Say Y here to include support for the watchdog timer found on
 393	   Marvell Armada 37xx SoCs.
 394	   To compile this driver as a module, choose M here: the
 395	   module will be called armada_37xx_wdt.
 396
 397config ASM9260_WATCHDOG
 398	tristate "Alphascale ASM9260 watchdog"
 399	depends on MACH_ASM9260 || COMPILE_TEST
 400	depends on OF
 401	select WATCHDOG_CORE
 402	select RESET_CONTROLLER
 403	help
 404	  Watchdog timer embedded into Alphascale asm9260 chips. This will
 405	  reboot your system when the timeout is reached.
 406
 407config AT91RM9200_WATCHDOG
 408	tristate "AT91RM9200 watchdog"
 409	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
 410	help
 411	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
 412	  system when the timeout is reached.
 413
 414config AT91SAM9X_WATCHDOG
 415	tristate "AT91SAM9X / AT91CAP9 watchdog"
 416	depends on ARCH_AT91 || COMPILE_TEST
 417	select WATCHDOG_CORE
 418	help
 419	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
 420	  reboot your system when the timeout is reached.
 421
 422config SAMA5D4_WATCHDOG
 423	tristate "Atmel SAMA5D4 Watchdog Timer"
 424	depends on ARCH_AT91 || COMPILE_TEST
 425	select WATCHDOG_CORE
 426	help
 427	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
 428	  Its Watchdog Timer Mode Register can be written more than once.
 429	  This will reboot your system when the timeout is reached.
 430
 431config CADENCE_WATCHDOG
 432	tristate "Cadence Watchdog Timer"
 433	depends on HAS_IOMEM
 434	select WATCHDOG_CORE
 435	help
 436	  Say Y here if you want to include support for the watchdog
 437	  timer in the Xilinx Zynq.
 438
 439config 21285_WATCHDOG
 440	tristate "DC21285 watchdog"
 441	depends on FOOTBRIDGE
 442	help
 443	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
 444	  here if you wish to use this. Alternatively say M to compile the
 445	  driver as a module, which will be called wdt285.
 446
 447	  This driver does not work on all machines. In particular, early CATS
 448	  boards have hardware problems that will cause the machine to simply
 449	  lock up if the watchdog fires.
 450
 451	  "If in doubt, leave it out" - say N.
 452
 453config 977_WATCHDOG
 454	tristate "NetWinder WB83C977 watchdog"
 455	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
 456	help
 457	  Say Y here to include support for the WB977 watchdog included in
 458	  NetWinder machines. Alternatively say M to compile the driver as
 459	  a module, which will be called wdt977.
 460
 461	  Not sure? It's safe to say N.
 462
 463config FTWDT010_WATCHDOG
 464	tristate "Faraday Technology FTWDT010 watchdog"
 465	depends on ARM || COMPILE_TEST
 466	select WATCHDOG_CORE
 467	default ARCH_GEMINI
 468	help
 469	  Say Y here if to include support for the Faraday Technology
 470	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
 471	  family of devices.
 472
 473	  To compile this driver as a module, choose M here: the
 474	  module will be called ftwdt010_wdt.
 475
 476config IXP4XX_WATCHDOG
 477	tristate "IXP4xx Watchdog"
 478	depends on ARCH_IXP4XX
 479	select WATCHDOG_CORE
 480	help
 481	  Say Y here if to include support for the watchdog timer
 482	  in the Intel IXP4xx network processors. This driver can
 483	  be built as a module by choosing M. The module will
 484	  be called ixp4xx_wdt.
 485
 486	  Note: The internal IXP4xx watchdog does a soft CPU reset
 487	  which doesn't reset any peripherals. There are circumstances
 488	  where the watchdog will fail to reset the board correctly
 489	  (e.g., if the boot ROM is in an unreadable state).
 490
 491	  Say N if you are unsure.
 492
 
 
 
 
 
 
 
 493config S3C2410_WATCHDOG
 494	tristate "S3C2410 Watchdog"
 495	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
 496		   COMPILE_TEST
 497	select WATCHDOG_CORE
 498	select MFD_SYSCON if ARCH_EXYNOS
 499	help
 500	  Watchdog timer block in the Samsung S3C24xx, S3C64xx, S5Pv210 and
 501	  Exynos SoCs. This will reboot the system when the timer expires with
 502	  the watchdog enabled.
 503
 504	  The driver is limited by the speed of the system's PCLK
 505	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
 506	  then watchdog intervals of over approximately 20seconds are
 507	  unavailable.
 508
 509	  Choose Y/M here only if you build for such Samsung SoC.
 510	  The driver can be built as a module by choosing M, and will
 511	  be called s3c2410_wdt.
 512
 513config SA1100_WATCHDOG
 514	tristate "SA1100/PXA2xx watchdog"
 515	depends on ARCH_SA1100 || ARCH_PXA
 516	help
 517	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
 518	  reboot your system when timeout is reached.
 519
 520	  NOTE: once enabled, this timer cannot be disabled.
 521
 522	  To compile this driver as a module, choose M here: the
 523	  module will be called sa1100_wdt.
 524
 525config DW_WATCHDOG
 526	tristate "Synopsys DesignWare watchdog"
 527	depends on HAS_IOMEM
 528	select WATCHDOG_CORE
 529	help
 530	  Say Y here if to include support for the Synopsys DesignWare
 531	  watchdog timer found in many chips.
 532	  To compile this driver as a module, choose M here: the
 533	  module will be called dw_wdt.
 534
 535config EP93XX_WATCHDOG
 536	tristate "EP93xx Watchdog"
 537	depends on ARCH_EP93XX || COMPILE_TEST
 538	select WATCHDOG_CORE
 539	help
 540	  Say Y here if to include support for the watchdog timer
 541	  embedded in the Cirrus Logic EP93xx family of devices.
 542
 543	  To compile this driver as a module, choose M here: the
 544	  module will be called ep93xx_wdt.
 545
 546config OMAP_WATCHDOG
 547	tristate "OMAP Watchdog"
 548	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
 549	select WATCHDOG_CORE
 550	help
 551	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
 552	  Say 'Y' here to enable the
 553	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
 554
 555config PNX4008_WATCHDOG
 556	tristate "LPC32XX Watchdog"
 557	depends on ARCH_LPC32XX || COMPILE_TEST
 558	select WATCHDOG_CORE
 559	help
 560	  Say Y here if to include support for the watchdog timer
 561	  in the LPC32XX processor.
 562	  This driver can be built as a module by choosing M. The module
 563	  will be called pnx4008_wdt.
 564
 565	  Say N if you are unsure.
 566
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 567config DAVINCI_WATCHDOG
 568	tristate "DaVinci watchdog"
 569	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
 570	select WATCHDOG_CORE
 571	help
 572	  Say Y here if to include support for the watchdog timer
 573	  in the DaVinci DM644x/DM646x or Keystone processors.
 574	  To compile this driver as a module, choose M here: the
 575	  module will be called davinci_wdt.
 576
 577	  NOTE: once enabled, this timer cannot be disabled.
 578	  Say N if you are unsure.
 579
 580config K3_RTI_WATCHDOG
 581	tristate "Texas Instruments K3 RTI watchdog"
 582	depends on ARCH_K3 || COMPILE_TEST
 583	select WATCHDOG_CORE
 584	help
 585	  Say Y here if you want to include support for the K3 watchdog
 586	  timer (RTI module) available in the K3 generation of processors.
 587
 588config ORION_WATCHDOG
 589	tristate "Orion watchdog"
 590	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
 591	depends on ARM
 592	select WATCHDOG_CORE
 593	help
 594	  Say Y here if to include support for the watchdog timer
 595	  in the Marvell Orion5x and Kirkwood ARM SoCs.
 596	  To compile this driver as a module, choose M here: the
 597	  module will be called orion_wdt.
 598
 599config RN5T618_WATCHDOG
 600	tristate "Ricoh RN5T618 watchdog"
 601	depends on MFD_RN5T618 || COMPILE_TEST
 602	select WATCHDOG_CORE
 603	help
 604	  If you say yes here you get support for watchdog on the Ricoh
 605	  RN5T618 PMIC.
 606
 607	  This driver can also be built as a module.  If so, the module
 608	  will be called rn5t618_wdt.
 609
 610config SUNXI_WATCHDOG
 611	tristate "Allwinner SoCs watchdog support"
 612	depends on ARCH_SUNXI || COMPILE_TEST
 613	select WATCHDOG_CORE
 614	help
 615	  Say Y here to include support for the watchdog timer
 616	  in Allwinner SoCs.
 617	  To compile this driver as a module, choose M here: the
 618	  module will be called sunxi_wdt.
 619
 
 
 
 
 
 
 
 
 
 
 
 620config NPCM7XX_WATCHDOG
 621	tristate "Nuvoton NPCM750 watchdog"
 622	depends on ARCH_NPCM || COMPILE_TEST
 623	default y if ARCH_NPCM7XX
 624	select WATCHDOG_CORE
 625	help
 626	  Say Y here to include Watchdog timer support for the
 627	  watchdog embedded into the NPCM7xx.
 628	  This watchdog is used to reset the system and thus cannot be
 629	  compiled as a module.
 630
 631config TWL4030_WATCHDOG
 632	tristate "TWL4030 Watchdog"
 633	depends on TWL4030_CORE
 634	select WATCHDOG_CORE
 635	help
 636	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
 637	  watchdog timer support for TWL4030 chips.
 638
 639config STMP3XXX_RTC_WATCHDOG
 640	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
 641	depends on RTC_DRV_STMP || COMPILE_TEST
 642	select WATCHDOG_CORE
 643	help
 644	  Say Y here to include support for the watchdog timer inside
 645	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
 646	  To compile this driver as a module, choose M here: the
 647	  module will be called stmp3xxx_rtc_wdt.
 648
 649config TS4800_WATCHDOG
 650	tristate "TS-4800 Watchdog"
 651	depends on HAS_IOMEM && OF
 652	depends on SOC_IMX51 || COMPILE_TEST
 653	select WATCHDOG_CORE
 654	select MFD_SYSCON
 655	help
 656	  Technologic Systems TS-4800 has watchdog timer implemented in
 657	  an external FPGA. Say Y here if you want to support for the
 658	  watchdog timer on TS-4800 board.
 659
 660config TS72XX_WATCHDOG
 661	tristate "TS-72XX SBC Watchdog"
 662	depends on MACH_TS72XX || COMPILE_TEST
 663	select WATCHDOG_CORE
 664	help
 665	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
 666	  watchdog timer implemented in a external CPLD chip. Say Y here
 667	  if you want to support for the watchdog timer on TS-72XX boards.
 668
 669	  To compile this driver as a module, choose M here: the
 670	  module will be called ts72xx_wdt.
 671
 672config MAX63XX_WATCHDOG
 673	tristate "Max63xx watchdog"
 674	depends on HAS_IOMEM
 675	select WATCHDOG_CORE
 676	help
 677	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
 678
 679config MAX77620_WATCHDOG
 680	tristate "Maxim Max77620 Watchdog Timer"
 681	depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
 682	select WATCHDOG_CORE
 683	help
 684	  This is the driver for the Max77620 watchdog timer.
 685	  Say 'Y' here to enable the watchdog timer support for
 686	  MAX77620 chips. To compile this driver as a module,
 687	  choose M here: the module will be called max77620_wdt.
 688
 689config IMX2_WDT
 690	tristate "IMX2+ Watchdog"
 691	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
 692	select REGMAP_MMIO
 693	select WATCHDOG_CORE
 694	help
 695	  This is the driver for the hardware watchdog
 696	  on the Freescale IMX2 and later processors.
 697	  If you have one of these processors and wish to have
 698	  watchdog support enabled, say Y, otherwise say N.
 699
 700	  To compile this driver as a module, choose M here: the
 701	  module will be called imx2_wdt.
 702
 703config IMX_SC_WDT
 704	tristate "IMX SC Watchdog"
 705	depends on HAVE_ARM_SMCCC
 706	depends on IMX_SCU
 707	select WATCHDOG_CORE
 708	help
 709	  This is the driver for the system controller watchdog
 710	  on the NXP i.MX SoCs with system controller inside, the
 711	  watchdog driver will call ARM SMC API and trap into
 712	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
 713	  will request system controller to execute the operations.
 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 imx_sc_wdt.
 719
 720config IMX7ULP_WDT
 721	tristate "IMX7ULP Watchdog"
 722	depends on ARCH_MXC || COMPILE_TEST
 723	select WATCHDOG_CORE
 724	help
 725	  This is the driver for the hardware watchdog on the Freescale
 726	  IMX7ULP and later processors. If you have one of these
 727	  processors and wish to have watchdog support enabled,
 728	  say Y, otherwise say N.
 729
 730	  To compile this driver as a module, choose M here: the
 731	  module will be called imx7ulp_wdt.
 732
 733config DB500_WATCHDOG
 734	tristate "ST-Ericsson DB800 watchdog"
 735	depends on MFD_DB8500_PRCMU
 736	select WATCHDOG_CORE
 737	default y
 738	help
 739	  Say Y here to include Watchdog timer support for the watchdog
 740	  existing in the prcmu of ST-Ericsson DB8500 platform.
 741
 742	  To compile this driver as a module, choose M here: the
 743	  module will be called db500_wdt.
 744
 745config RETU_WATCHDOG
 746	tristate "Retu watchdog"
 747	depends on MFD_RETU
 748	select WATCHDOG_CORE
 749	help
 750	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
 751	  N810). At least on N800 the watchdog cannot be disabled, so
 752	  this driver is essential and you should enable it.
 753
 754	  To compile this driver as a module, choose M here: the
 755	  module will be called retu_wdt.
 756
 757config MOXART_WDT
 758	tristate "MOXART watchdog"
 759	depends on ARCH_MOXART || COMPILE_TEST
 760	help
 761	  Say Y here to include Watchdog timer support for the watchdog
 762	  existing on the MOXA ART SoC series platforms.
 763
 764	  To compile this driver as a module, choose M here: the
 765	  module will be called moxart_wdt.
 766
 
 
 
 
 
 
 
 
 
 767config ST_LPC_WATCHDOG
 768	tristate "STMicroelectronics LPC Watchdog"
 769	depends on ARCH_STI || COMPILE_TEST
 770	depends on OF
 771	select WATCHDOG_CORE
 772	help
 773	  Say Y here to include STMicroelectronics Low Power Controller
 774	  (LPC) based Watchdog timer support.
 775
 776	  To compile this driver as a module, choose M here: the
 777	  module will be called st_lpc_wdt.
 778
 779config TEGRA_WATCHDOG
 780	tristate "Tegra watchdog"
 781	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
 782	select WATCHDOG_CORE
 783	help
 784	  Say Y here to include support for the watchdog timer
 785	  embedded in NVIDIA Tegra SoCs.
 786
 787	  To compile this driver as a module, choose M here: the
 788	  module will be called tegra_wdt.
 789
 790config QCOM_WDT
 791	tristate "QCOM watchdog"
 792	depends on HAS_IOMEM
 793	depends on ARCH_QCOM || COMPILE_TEST
 794	select WATCHDOG_CORE
 795	help
 796	  Say Y here to include Watchdog timer support for the watchdog found
 797	  on QCOM chipsets.  Currently supported targets are the MSM8960,
 798	  APQ8064, and IPQ8064.
 799
 800	  To compile this driver as a module, choose M here: the
 801	  module will be called qcom_wdt.
 802
 803config MESON_GXBB_WATCHDOG
 804	tristate "Amlogic Meson GXBB SoCs watchdog support"
 805	depends on ARCH_MESON || COMPILE_TEST
 806	select WATCHDOG_CORE
 807	help
 808	  Say Y here to include support for the watchdog timer
 809	  in Amlogic Meson GXBB SoCs.
 810	  To compile this driver as a module, choose M here: the
 811	  module will be called meson_gxbb_wdt.
 812
 813config MESON_WATCHDOG
 814	tristate "Amlogic Meson SoCs watchdog support"
 815	depends on ARCH_MESON || COMPILE_TEST
 816	select WATCHDOG_CORE
 817	help
 818	  Say Y here to include support for the watchdog timer
 819	  in Amlogic Meson SoCs.
 820	  To compile this driver as a module, choose M here: the
 821	  module will be called meson_wdt.
 822
 823config MEDIATEK_WATCHDOG
 824	tristate "Mediatek SoCs watchdog support"
 825	depends on ARCH_MEDIATEK || COMPILE_TEST
 826	default ARCH_MEDIATEK
 827	select WATCHDOG_CORE
 828	select RESET_CONTROLLER
 829	help
 830	  Say Y here to include support for the watchdog timer
 831	  in Mediatek SoCs.
 832	  To compile this driver as a module, choose M here: the
 833	  module will be called mtk_wdt.
 834
 835config DIGICOLOR_WATCHDOG
 836	tristate "Conexant Digicolor SoCs watchdog support"
 837	depends on ARCH_DIGICOLOR || COMPILE_TEST
 838	select WATCHDOG_CORE
 839	help
 840	  Say Y here to include support for the watchdog timer
 841	  in Conexant Digicolor SoCs.
 842	  To compile this driver as a module, choose M here: the
 843	  module will be called digicolor_wdt.
 844
 845config ARM_SMC_WATCHDOG
 846	tristate "ARM Secure Monitor Call based watchdog support"
 847	depends on ARM || ARM64
 848	depends on OF
 849	depends on HAVE_ARM_SMCCC
 850	select WATCHDOG_CORE
 851	help
 852	  Say Y here to include support for a watchdog timer
 853	  implemented by the EL3 Secure Monitor on ARM platforms.
 854	  Requires firmware support.
 855	  To compile this driver as a module, choose M here: the
 856	  module will be called arm_smc_wdt.
 857
 858config LPC18XX_WATCHDOG
 859	tristate "LPC18xx/43xx Watchdog"
 860	depends on ARCH_LPC18XX || COMPILE_TEST
 861	depends on HAS_IOMEM
 862	select WATCHDOG_CORE
 863	help
 864	  Say Y here if to include support for the watchdog timer
 865	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
 866	  processors.
 867	  To compile this driver as a module, choose M here: the
 868	  module will be called lpc18xx_wdt.
 869
 
 
 
 
 
 
 
 
 
 
 870config RENESAS_WDT
 871	tristate "Renesas WDT Watchdog"
 872	depends on ARCH_RENESAS || COMPILE_TEST
 873	select WATCHDOG_CORE
 874	help
 875	  This driver adds watchdog support for the integrated watchdogs in the
 876	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
 877
 878config RENESAS_RZAWDT
 879	tristate "Renesas RZ/A WDT Watchdog"
 880	depends on ARCH_RENESAS || COMPILE_TEST
 881	select WATCHDOG_CORE
 882	help
 883	  This driver adds watchdog support for the integrated watchdogs in the
 884	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
 885
 886config RENESAS_RZN1WDT
 887	tristate "Renesas RZ/N1 watchdog"
 888	depends on ARCH_RENESAS || COMPILE_TEST
 889	select WATCHDOG_CORE
 890	help
 891	  This driver adds watchdog support for the integrated watchdogs in the
 892	  Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system.
 893
 894config RENESAS_RZG2LWDT
 895	tristate "Renesas RZ/G2L WDT Watchdog"
 896	depends on ARCH_RENESAS || COMPILE_TEST
 897	select WATCHDOG_CORE
 898	help
 899	  This driver adds watchdog support for the integrated watchdogs in the
 900	  Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
 901
 902config ASPEED_WATCHDOG
 903	tristate "Aspeed BMC watchdog support"
 904	depends on ARCH_ASPEED || COMPILE_TEST
 905	select WATCHDOG_CORE
 906	help
 907	  Say Y here to include support for the watchdog timer
 908	  in Aspeed BMC SoCs.
 909
 910	  This driver is required to reboot the SoC.
 911
 912	  To compile this driver as a module, choose M here: the
 913	  module will be called aspeed_wdt.
 914
 
 
 
 
 
 
 
 
 
 
 915config STM32_WATCHDOG
 916	tristate "STM32 Independent WatchDoG (IWDG) support"
 917	depends on ARCH_STM32
 918	select WATCHDOG_CORE
 919	default y
 920	help
 921	  Say Y here to include support for the watchdog timer
 922	  in stm32 SoCs.
 923
 924	  To compile this driver as a module, choose M here: the
 925	  module will be called stm32_iwdg.
 926
 927config STPMIC1_WATCHDOG
 928	tristate "STPMIC1 PMIC watchdog support"
 929	depends on MFD_STPMIC1
 930	select WATCHDOG_CORE
 931	help
 932	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
 933	  If the watchdog timer expires, stpmic1 will shut down all its power
 934	  supplies.
 935
 936	  To compile this driver as a module, choose M here: the
 937	  module will be called spmic1_wdt.
 938
 939config UNIPHIER_WATCHDOG
 940	tristate "UniPhier watchdog support"
 941	depends on ARCH_UNIPHIER || COMPILE_TEST
 942	depends on OF && MFD_SYSCON
 943	select WATCHDOG_CORE
 944	help
 945	  Say Y here to include support watchdog timer embedded
 946	  into the UniPhier system.
 947
 948	  To compile this driver as a module, choose M here: the
 949	  module will be called uniphier_wdt.
 950
 951config RTD119X_WATCHDOG
 952	bool "Realtek RTD119x/RTD129x watchdog support"
 953	depends on ARCH_REALTEK || COMPILE_TEST
 954	depends on OF
 955	select WATCHDOG_CORE
 956	default ARCH_REALTEK
 957	help
 958	  Say Y here to include support for the watchdog timer in
 959	  Realtek RTD1295 SoCs.
 960
 961config REALTEK_OTTO_WDT
 962	tristate "Realtek Otto MIPS watchdog support"
 963	depends on MACH_REALTEK_RTL || COMPILE_TEST
 964	depends on COMMON_CLK
 965	select WATCHDOG_CORE
 966	default MACH_REALTEK_RTL
 967	help
 968	  Say Y here to include support for the watchdog timer on Realtek
 969	  RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
 970	  notifications and system reset on timeout.
 971
 972	  When built as a module this will be called realtek_otto_wdt.
 973
 974config SPRD_WATCHDOG
 975	tristate "Spreadtrum watchdog support"
 976	depends on ARCH_SPRD || COMPILE_TEST
 977	select WATCHDOG_CORE
 978	help
 979	  Say Y here to include watchdog timer supported
 980	  by Spreadtrum system.
 981
 982config PM8916_WATCHDOG
 983	tristate "QCOM PM8916 pmic watchdog"
 984	depends on OF && MFD_SPMI_PMIC
 985	select WATCHDOG_CORE
 986	help
 987	  Say Y here to include support watchdog timer embedded into the
 988	  pm8916 module.
 989
 990config VISCONTI_WATCHDOG
 991	tristate "Toshiba Visconti series watchdog support"
 992	depends on ARCH_VISCONTI || COMPILE_TEST
 993	select WATCHDOG_CORE
 994	help
 995	  Say Y here to include support for the watchdog timer in Toshiba
 996	  Visconti SoCs.
 997
 998config MSC313E_WATCHDOG
 999	tristate "MStar MSC313e watchdog"
1000	depends on ARCH_MSTARV7 || COMPILE_TEST
1001	select WATCHDOG_CORE
1002	help
1003	  Say Y here to include support for the Watchdog timer embedded
1004	  into MStar MSC313e chips. This will reboot your system when the
1005	  timeout is reached.
1006
1007	  To compile this driver as a module, choose M here: the
1008	  module will be called msc313e_wdt.
1009
1010config APPLE_WATCHDOG
1011	tristate "Apple SoC watchdog"
1012	depends on ARCH_APPLE || COMPILE_TEST
1013	select WATCHDOG_CORE
1014	help
1015	  Say Y here to include support for the Watchdog found in Apple
1016	  SoCs such as the M1. Next to the common watchdog features this
1017	  driver is also required in order to reboot these SoCs.
1018
1019	  To compile this driver as a module, choose M here: the
1020	  module will be called apple_wdt.
1021
1022config SUNPLUS_WATCHDOG
1023	tristate "Sunplus watchdog support"
1024	depends on ARCH_SUNPLUS || COMPILE_TEST
1025	select WATCHDOG_CORE
1026	help
1027	  Say Y here to include support for the watchdog timer
1028	  in Sunplus SoCs.
1029
1030	  To compile this driver as a module, choose M here: the
1031	  module will be called sunplus_wdt.
1032
1033# X86 (i386 + ia64 + x86_64) Architecture
1034
1035config ACQUIRE_WDT
1036	tristate "Acquire SBC Watchdog Timer"
1037	depends on X86
1038	help
1039	  This is the driver for the hardware watchdog on Single Board
1040	  Computers produced by Acquire Inc (and others). This watchdog
1041	  simply watches your kernel to make sure it doesn't freeze, and if
1042	  it does, it reboots your computer after a certain amount of time.
1043
1044	  To compile this driver as a module, choose M here: the
1045	  module will be called acquirewdt.
1046
1047	  Most people will say N.
1048
1049config ADVANTECH_WDT
1050	tristate "Advantech SBC Watchdog Timer"
1051	depends on X86
1052	help
1053	  If you are configuring a Linux kernel for the Advantech single-board
1054	  computer, say `Y' here to support its built-in watchdog timer
1055	  feature. More information can be found at
1056	  <https://www.advantech.com.tw/products/>
1057
1058config ADVANTECH_EC_WDT
1059	tristate "Advantech Embedded Controller Watchdog Timer"
1060	depends on X86
1061	help
1062		This driver supports Advantech products with ITE based Embedded Controller.
1063		It does not support Advantech products with other ECs or without EC.
1064
1065config ALIM1535_WDT
1066	tristate "ALi M1535 PMU Watchdog Timer"
1067	depends on X86 && PCI
1068	help
1069	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1070
1071	  To compile this driver as a module, choose M here: the
1072	  module will be called alim1535_wdt.
1073
1074	  Most people will say N.
1075
1076config ALIM7101_WDT
1077	tristate "ALi M7101 PMU Computer Watchdog"
1078	depends on PCI
1079	help
1080	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1081	  as used in the x86 Cobalt servers and also found in some
1082	  SPARC Netra servers too.
1083
1084	  To compile this driver as a module, choose M here: the
1085	  module will be called alim7101_wdt.
1086
1087	  Most people will say N.
1088
1089config EBC_C384_WDT
1090	tristate "WinSystems EBC-C384 Watchdog Timer"
1091	depends on X86
1092	select ISA_BUS_API
1093	select WATCHDOG_CORE
1094	help
1095	  Enables watchdog timer support for the watchdog timer on the
1096	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1097	  the timeout module parameter.
1098
1099config EXAR_WDT
1100	tristate "Exar Watchdog Timer"
1101	depends on X86
1102	select WATCHDOG_CORE
1103	help
1104	  Enables watchdog timer support for the watchdog timer present
1105	  in some Exar/MaxLinear UART chips like the XR28V38x.
1106
1107	  To compile this driver as a module, choose M here: the
1108	  module will be called exar_wdt.
1109
1110config F71808E_WDT
1111	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1112	depends on X86
1113	select WATCHDOG_CORE
1114	help
1115	  This is the driver for the hardware watchdog on the Fintek F71808E,
1116	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1117	  F81866 Super I/O controllers.
1118
1119	  You can compile this driver directly into the kernel, or use
1120	  it as a module.  The module will be called f71808e_wdt.
1121
1122config SP5100_TCO
1123	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1124	depends on X86 && PCI
1125	select WATCHDOG_CORE
1126	help
1127	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1128	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1129	  the machine after its expiration. The expiration time can be
1130	  configured with the "heartbeat" parameter.
1131
1132	  To compile this driver as a module, choose M here: the
1133	  module will be called sp5100_tco.
1134
1135config GEODE_WDT
1136	tristate "AMD Geode CS5535/CS5536 Watchdog"
1137	depends on CS5535_MFGPT
1138	help
1139	  This driver enables a watchdog capability built into the
1140	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1141	  processors.  This watchdog watches your kernel to make sure
1142	  it doesn't freeze, and if it does, it reboots your computer after
1143	  a certain amount of time.
1144
1145	  You can compile this driver directly into the kernel, or use
1146	  it as a module.  The module will be called geodewdt.
1147
1148config SC520_WDT
1149	tristate "AMD Elan SC520 processor Watchdog"
1150	depends on MELAN || COMPILE_TEST
1151	help
1152	  This is the driver for the hardware watchdog built in to the
1153	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1154	  This watchdog simply watches your kernel to make sure it doesn't
1155	  freeze, and if it does, it reboots your computer after a certain
1156	  amount of time.
1157
1158	  You can compile this driver directly into the kernel, or use
1159	  it as a module.  The module will be called sc520_wdt.
1160
1161config SBC_FITPC2_WATCHDOG
1162	tristate "Compulab SBC-FITPC2 watchdog"
1163	depends on X86
1164	help
1165	  This is the driver for the built-in watchdog timer on the fit-PC2,
1166	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1167
1168	  It's possible to enable the watchdog timer either from BIOS (F2) or
1169	  from booted Linux.
1170	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1171	  operational range.
1172
1173	  Entering BIOS setup temporarily disables watchdog operation regardless
1174	  of current state, so system will not be restarted while user is in
1175	  BIOS setup.
1176
1177	  Once the watchdog is enabled the system will be restarted every
 
 
 
1178	  "Watchdog Timer Value" period, so to prevent it user can restart or
1179	  disable the watchdog.
1180
1181	  To compile this driver as a module, choose M here: the
1182	  module will be called sbc_fitpc2_wdt.
1183
1184	  Most people will say N.
1185
1186config EUROTECH_WDT
1187	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1188	depends on X86
1189	help
1190	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1191	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1192	  information are at <http://www.eurotech.it/>.
1193
1194config IB700_WDT
1195	tristate "IB700 SBC Watchdog Timer"
1196	depends on X86
1197	help
1198	  This is the driver for the hardware watchdog on the IB700 Single
1199	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1200	  watchdog simply watches your kernel to make sure it doesn't freeze,
1201	  and if it does, it reboots your computer after a certain amount of time.
1202
1203	  This driver is like the WDT501 driver but for slightly different
1204	  hardware.
1205
1206	  To compile this driver as a module, choose M here: the
1207	  module will be called ib700wdt.
1208
1209	  Most people will say N.
1210
1211config IBMASR
1212	tristate "IBM Automatic Server Restart"
1213	depends on X86
1214	help
1215	  This is the driver for the IBM Automatic Server Restart watchdog
1216	  timer built-in into some eServer xSeries machines.
1217
1218	  To compile this driver as a module, choose M here: the
1219	  module will be called ibmasr.
1220
1221config WAFER_WDT
1222	tristate "ICP Single Board Computer Watchdog Timer"
1223	depends on X86
1224	help
1225	  This is a driver for the hardware watchdog on the ICP Single
1226	  Board Computer. This driver is working on (at least) the following
1227	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1228
1229	  To compile this driver as a module, choose M here: the
1230	  module will be called wafer5823wdt.
1231
1232config I6300ESB_WDT
1233	tristate "Intel 6300ESB Timer/Watchdog"
1234	depends on PCI
1235	select WATCHDOG_CORE
1236	help
1237	  Hardware driver for the watchdog timer built into the Intel
1238	  6300ESB controller hub.
1239
1240	  To compile this driver as a module, choose M here: the
1241	  module will be called i6300esb.
1242
1243config IE6XX_WDT
1244	tristate "Intel Atom E6xx Watchdog"
1245	depends on X86 && PCI
1246	select WATCHDOG_CORE
1247	select MFD_CORE
1248	select LPC_SCH
1249	help
1250	  Hardware driver for the watchdog timer built into the Intel
1251	  Atom E6XX (TunnelCreek) processor.
1252
1253	  To compile this driver as a module, choose M here: the
1254	  module will be called ie6xx_wdt.
1255
 
 
 
 
 
 
 
 
 
1256config INTEL_MID_WATCHDOG
1257	tristate "Intel MID Watchdog Timer"
1258	depends on X86_INTEL_MID
1259	select WATCHDOG_CORE
1260	help
1261	  Watchdog timer driver built into the Intel SCU for Intel MID
1262	  Platforms.
1263
1264	  This driver currently supports only the watchdog evolution
1265	  implementation in SCU, available for Merrifield generation.
1266
1267	  To compile this driver as a module, choose M here.
1268
1269config ITCO_WDT
1270	tristate "Intel TCO Timer/Watchdog"
1271	depends on (X86 || IA64) && PCI
1272	select WATCHDOG_CORE
1273	depends on I2C || I2C=n
1274	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1275	select LPC_ICH if !EXPERT
1276	select I2C_I801 if !EXPERT && I2C
1277	help
1278	  Hardware driver for the intel TCO timer based watchdog devices.
1279	  These drivers are included in the Intel 82801 I/O Controller
1280	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1281	  controller hub.
1282
1283	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1284	  that will reboot the machine after its second expiration. The
1285	  expiration time can be configured with the "heartbeat" parameter.
1286
1287	  On some motherboards the driver may fail to reset the chipset's
1288	  NO_REBOOT flag which prevents the watchdog from rebooting the
1289	  machine. If this is the case you will get a kernel message like
1290	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1291
1292	  To compile this driver as a module, choose M here: the
1293	  module will be called iTCO_wdt.
1294
1295config ITCO_VENDOR_SUPPORT
1296	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1297	depends on ITCO_WDT
1298	help
1299	  Add vendor specific support to the intel TCO timer based watchdog
1300	  devices. At this moment we only have additional support for some
1301	  SuperMicro Inc. motherboards.
1302
1303config IT8712F_WDT
1304	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1305	depends on X86
1306	help
1307	  This is the driver for the built-in watchdog timer on the IT8712F
1308	  Super I/0 chipset used on many motherboards.
1309
1310	  If the driver does not work, then make sure that the game port in
1311	  the BIOS is enabled.
1312
1313	  To compile this driver as a module, choose M here: the
1314	  module will be called it8712f_wdt.
1315
1316config IT87_WDT
1317	tristate "IT87 Watchdog Timer"
1318	depends on X86
1319	select WATCHDOG_CORE
1320	help
1321	  This is the driver for the hardware watchdog on the ITE IT8607,
1322	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1323	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1324	  IT8783 Super I/O chips.
1325
1326	  This watchdog simply watches your kernel to make sure it doesn't
1327	  freeze, and if it does, it reboots your computer after a certain
1328	  amount of time.
1329
1330	  To compile this driver as a module, choose M here: the module will
1331	  be called it87_wdt.
1332
1333config HP_WATCHDOG
1334	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1335	select WATCHDOG_CORE
1336	depends on (ARM64 || X86) && PCI
1337	help
1338	  A software monitoring watchdog and NMI handling driver. This driver
1339	  will detect lockups and provide a stack trace. This is a driver that
1340	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1341	  To compile this driver as a module, choose M here: the module will be
1342	  called hpwdt.
1343
1344config HPWDT_NMI_DECODING
1345	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1346	depends on X86 && HP_WATCHDOG
1347	default y
1348	help
1349	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1350	  "Generate NMI to System" virtual button.  When an NMI is claimed
1351	  by the driver, panic is called.
1352
1353config KEMPLD_WDT
1354	tristate "Kontron COM Watchdog Timer"
1355	depends on MFD_KEMPLD
1356	select WATCHDOG_CORE
1357	help
1358	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1359	  (ETXexpress) modules
1360
1361	  This driver can also be built as a module. If so, the module will be
1362	  called kempld_wdt.
1363
1364config SC1200_WDT
1365	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1366	depends on X86
1367	help
1368	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1369	  watchdog cards as found on the SC1200. This watchdog is mainly used
1370	  for power management purposes and can be used to power down the device
1371	  during inactivity periods (includes interrupt activity monitoring).
1372
1373	  To compile this driver as a module, choose M here: the
1374	  module will be called sc1200wdt.
1375
1376	  Most people will say N.
1377
1378config SCx200_WDT
1379	tristate "National Semiconductor SCx200 Watchdog"
1380	depends on SCx200 && PCI
1381	help
1382	  Enable the built-in watchdog timer support on the National
1383	  Semiconductor SCx200 processors.
1384
1385	  If compiled as a module, it will be called scx200_wdt.
1386
1387config PC87413_WDT
1388	tristate "NS PC87413 watchdog"
1389	depends on X86
1390	help
1391	  This is the driver for the hardware watchdog on the PC87413 chipset
1392	  This watchdog simply watches your kernel to make sure it doesn't
1393	  freeze, and if it does, it reboots your computer after a certain
1394	  amount of time.
1395
1396	  To compile this driver as a module, choose M here: the
1397	  module will be called pc87413_wdt.
1398
1399	  Most people will say N.
1400
1401config NV_TCO
1402	tristate "nVidia TCO Timer/Watchdog"
1403	depends on X86 && PCI
1404	help
1405	  Hardware driver for the TCO timer built into the nVidia Hub family
1406	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1407	  watchdog timer that will reboot the machine after its second
1408	  expiration. The expiration time can be configured with the
1409	  "heartbeat" parameter.
1410
1411	  On some motherboards the driver may fail to reset the chipset's
1412	  NO_REBOOT flag which prevents the watchdog from rebooting the
1413	  machine. If this is the case you will get a kernel message like
1414	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1415
1416	  To compile this driver as a module, choose M here: the
1417	  module will be called nv_tco.
1418
1419config RDC321X_WDT
1420	tristate "RDC R-321x SoC watchdog"
1421	depends on X86_RDC321X || COMPILE_TEST
1422	depends on PCI
1423	help
1424	  This is the driver for the built in hardware watchdog
1425	  in the RDC R-321x SoC.
1426
1427	  To compile this driver as a module, choose M here: the
1428	  module will be called rdc321x_wdt.
1429
1430config 60XX_WDT
1431	tristate "SBC-60XX Watchdog Timer"
1432	depends on X86
1433	help
1434	  This driver can be used with the watchdog timer found on some
1435	  single board computers, namely the 6010 PII based computer.
1436	  It may well work with other cards.  It reads port 0x443 to enable
1437	  and re-set the watchdog timer, and reads port 0x45 to disable
1438	  the watchdog.  If you have a card that behave in similar ways,
1439	  you can probably make this driver work with your card as well.
1440
1441	  You can compile this driver directly into the kernel, or use
1442	  it as a module.  The module will be called sbc60xxwdt.
1443
1444config SBC8360_WDT
1445	tristate "SBC8360 Watchdog Timer"
1446	depends on X86_32
1447	help
1448
1449	  This is the driver for the hardware watchdog on the SBC8360 Single
1450	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1451
1452	  To compile this driver as a module, choose M here: the
1453	  module will be called sbc8360.
1454
1455	  Most people will say N.
1456
1457config SBC7240_WDT
1458	tristate "SBC Nano 7240 Watchdog Timer"
1459	depends on X86_32 && !UML
1460	help
1461	  This is the driver for the hardware watchdog found on the IEI
1462	  single board computers EPIC Nano 7240 (and likely others). This
1463	  watchdog simply watches your kernel to make sure it doesn't freeze,
1464	  and if it does, it reboots your computer after a certain amount of
1465	  time.
1466
1467	  To compile this driver as a module, choose M here: the
1468	  module will be called sbc7240_wdt.
1469
1470config CPU5_WDT
1471	tristate "SMA CPU5 Watchdog"
1472	depends on X86
1473	help
1474	  TBD.
1475	  To compile this driver as a module, choose M here: the
1476	  module will be called cpu5wdt.
1477
1478config SMSC_SCH311X_WDT
1479	tristate "SMSC SCH311X Watchdog Timer"
1480	depends on X86
1481	help
1482	  This is the driver for the hardware watchdog timer on the
1483	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1484	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1485	  serial ports).
1486
1487	  To compile this driver as a module, choose M here: the
1488	  module will be called sch311x_wdt.
1489
1490config SMSC37B787_WDT
1491	tristate "Winbond SMsC37B787 Watchdog Timer"
1492	depends on X86
1493	help
1494	  This is the driver for the hardware watchdog component on the
1495	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1496	  from Vision Systems and maybe others.
1497
1498	  This watchdog simply watches your kernel to make sure it doesn't
1499	  freeze, and if it does, it reboots your computer after a certain
1500	  amount of time.
1501
1502	  Usually a userspace daemon will notify the kernel WDT driver that
1503	  userspace is still alive, at regular intervals.
1504
1505	  To compile this driver as a module, choose M here: the
1506	  module will be called smsc37b787_wdt.
1507
1508	  Most people will say N.
1509
1510config TQMX86_WDT
1511	tristate "TQ-Systems TQMX86 Watchdog Timer"
1512	depends on X86
1513	select WATCHDOG_CORE
1514	help
1515	  This is the driver for the hardware watchdog timer in the TQMX86 IO
1516	  controller found on some of their ComExpress Modules.
1517
1518	  To compile this driver as a module, choose M here; the module
1519	  will be called tqmx86_wdt.
1520
1521	  Most people will say N.
1522
1523config VIA_WDT
1524	tristate "VIA Watchdog Timer"
1525	depends on X86 && PCI
1526	select WATCHDOG_CORE
1527	help
1528	  This is the driver for the hardware watchdog timer on VIA
1529	  southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1530
1531	  To compile this driver as a module, choose M here; the module
1532	  will be called via_wdt.
1533
1534	  Most people will say N.
1535
1536config W83627HF_WDT
1537	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1538	depends on X86
1539	select WATCHDOG_CORE
1540	help
1541	  This is the driver for the hardware watchdog on the following
1542	  Super I/O chips.
1543		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1544		W83637HF
1545		W83667HG/HG-B
1546		W83687THF
1547		W83697HF
1548		W83697UG
1549		NCT6775
1550		NCT6776
1551		NCT6779
1552		NCT6791
1553		NCT6792
1554		NCT6102D/04D/06D
1555		NCT6116D
1556
1557	  This watchdog simply watches your kernel to make sure it doesn't
1558	  freeze, and if it does, it reboots your computer after a certain
1559	  amount of time.
1560
1561	  To compile this driver as a module, choose M here: the
1562	  module will be called w83627hf_wdt.
1563
1564	  Most people will say N.
1565
1566config W83877F_WDT
1567	tristate "W83877F (EMACS) Watchdog Timer"
1568	depends on X86
1569	help
1570	  This is the driver for the hardware watchdog on the W83877F chipset
1571	  as used in EMACS PC-104 motherboards (and likely others).  This
1572	  watchdog simply watches your kernel to make sure it doesn't freeze,
1573	  and if it does, it reboots your computer after a certain amount of
1574	  time.
1575
1576	  To compile this driver as a module, choose M here: the
1577	  module will be called w83877f_wdt.
1578
1579	  Most people will say N.
1580
1581config W83977F_WDT
1582	tristate "W83977F (PCM-5335) Watchdog Timer"
1583	depends on X86
1584	help
1585	  This is the driver for the hardware watchdog on the W83977F I/O chip
1586	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1587	  watchdog simply watches your kernel to make sure it doesn't freeze,
1588	  and if it does, it reboots your computer after a certain amount of
1589	  time.
1590
1591	  To compile this driver as a module, choose M here: the
1592	  module will be called w83977f_wdt.
1593
1594config MACHZ_WDT
1595	tristate "ZF MachZ Watchdog"
1596	depends on X86
1597	help
1598	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1599	  N.  This is the driver for the watchdog timer built-in on that
1600	  processor using ZF-Logic interface.  This watchdog simply watches
1601	  your kernel to make sure it doesn't freeze, and if it does, it
1602	  reboots your computer after a certain amount of time.
1603
1604	  To compile this driver as a module, choose M here: the
1605	  module will be called machzwd.
1606
1607config SBC_EPX_C3_WATCHDOG
1608	tristate "Winsystems SBC EPX-C3 watchdog"
1609	depends on X86
1610	help
1611	  This is the driver for the built-in watchdog timer on the EPX-C3
1612	  Single-board computer made by Winsystems, Inc.
1613
1614	  *Note*: This hardware watchdog is not probeable and thus there
1615	  is no way to know if writing to its IO address will corrupt
1616	  your system or have any real effect.  The only way to be sure
1617	  that this driver does what you want is to make sure you
1618	  are running it on an EPX-C3 from Winsystems with the watchdog
1619	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1620	  IO ports.  Basically, the assumption is made that if you compile
1621	  this driver into your kernel and/or load it as a module, that you
1622	  know what you are doing and that you are in fact running on an
1623	  EPX-C3 board!
1624
1625	  To compile this driver as a module, choose M here: the
1626	  module will be called sbc_epx_c3.
1627
1628config INTEL_MEI_WDT
1629	tristate "Intel MEI iAMT Watchdog"
1630	depends on INTEL_MEI && X86
1631	select WATCHDOG_CORE
1632	help
1633	  A device driver for the Intel MEI iAMT watchdog.
1634
1635	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1636	  Whenever the OS hangs or crashes, iAMT will send an event
1637	  to any subscriber to this event. The watchdog doesn't reset the
1638	  the platform.
1639
1640	  To compile this driver as a module, choose M here:
1641	  the module will be called mei_wdt.
1642
1643config NI903X_WDT
1644	tristate "NI 903x/913x Watchdog"
1645	depends on X86 && ACPI
1646	select WATCHDOG_CORE
1647	help
1648	  This is the driver for the watchdog timer on the National Instruments
1649	  903x/913x real-time controllers.
1650
1651	  To compile this driver as a module, choose M here: the module will be
1652	  called ni903x_wdt.
1653
1654config NIC7018_WDT
1655	tristate "NIC7018 Watchdog"
1656	depends on X86 && ACPI
1657	select WATCHDOG_CORE
1658	help
1659	  Support for National Instruments NIC7018 Watchdog.
1660
1661	  To compile this driver as a module, choose M here: the module will be
1662	  called nic7018_wdt.
1663
1664config SIEMENS_SIMATIC_IPC_WDT
1665	tristate "Siemens Simatic IPC Watchdog"
1666	depends on SIEMENS_SIMATIC_IPC
1667	select WATCHDOG_CORE
1668	select P2SB
1669	help
1670	  This driver adds support for several watchdogs found in Industrial
1671	  PCs from Siemens.
1672
1673	  To compile this driver as a module, choose M here: the module will be
1674	  called simatic-ipc-wdt.
1675
1676# M68K Architecture
1677
1678config M54xx_WATCHDOG
1679	tristate "MCF54xx watchdog support"
1680	depends on M548x
1681	help
1682	  To compile this driver as a module, choose M here: the
1683	  module will be called m54xx_wdt.
1684
1685# MicroBlaze Architecture
1686
1687# MIPS Architecture
1688
1689config ATH79_WDT
1690	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1691	depends on ATH79 || (ARM && COMPILE_TEST)
1692	help
1693	  Hardware driver for the built-in watchdog timer on the Atheros
1694	  AR71XX/AR724X/AR913X SoCs.
1695
1696config BCM47XX_WDT
1697	tristate "Broadcom BCM47xx Watchdog Timer"
1698	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1699	select WATCHDOG_CORE
1700	help
1701	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1702
1703config RC32434_WDT
1704	tristate "IDT RC32434 SoC Watchdog Timer"
1705	depends on MIKROTIK_RB532
1706	help
1707	  Hardware driver for the IDT RC32434 SoC built-in
1708	  watchdog timer.
1709
1710	  To compile this driver as a module, choose M here: the
1711	  module will be called rc32434_wdt.
1712
1713config INDYDOG
1714	tristate "Indy/I2 Hardware Watchdog"
1715	depends on SGI_HAS_INDYDOG
1716	help
1717	  Hardware driver for the Indy's/I2's watchdog. This is a
1718	  watchdog timer that will reboot the machine after a 60 second
1719	  timer expired and no process has written to /dev/watchdog during
1720	  that time.
1721
1722config JZ4740_WDT
1723	tristate "Ingenic jz4740 SoC hardware watchdog"
1724	depends on MIPS
1725	depends on COMMON_CLK
1726	select WATCHDOG_CORE
1727	select MFD_SYSCON
1728	help
1729	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1730
1731config WDT_MTX1
1732	tristate "MTX-1 Hardware Watchdog"
1733	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1734	help
1735	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1736	  will reboot the machine after a 100 seconds timer expired.
1737
 
 
 
 
 
 
 
 
 
 
1738config SIBYTE_WDOG
1739	tristate "Sibyte SoC hardware watchdog"
1740	depends on CPU_SB1
1741	help
1742	  Watchdog driver for the built in watchdog hardware in Sibyte
1743	  SoC processors.  There are apparently two watchdog timers
1744	  on such processors; this driver supports only the first one,
1745	  because currently Linux only supports exporting one watchdog
1746	  to userspace.
1747
1748	  To compile this driver as a loadable module, choose M here.
1749	  The module will be called sb_wdog.
1750
1751config AR7_WDT
1752	tristate "TI AR7 Watchdog Timer"
1753	depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
1754	help
1755	  Hardware driver for the TI AR7 Watchdog Timer.
1756
1757config TXX9_WDT
1758	tristate "Toshiba TXx9 Watchdog Timer"
1759	depends on CPU_TX49XX || (MIPS && COMPILE_TEST)
1760	select WATCHDOG_CORE
1761	help
1762	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1763
1764config OCTEON_WDT
1765	tristate "Cavium OCTEON SOC family Watchdog Timer"
1766	depends on CAVIUM_OCTEON_SOC
1767	default y
1768	select WATCHDOG_CORE
1769	select EXPORT_UASM if OCTEON_WDT = m
1770	help
1771	  Hardware driver for OCTEON's on chip watchdog timer.
1772	  Enables the watchdog for all cores running Linux. It
1773	  installs a NMI handler and pokes the watchdog based on an
1774	  interrupt.  On first expiration of the watchdog, the
1775	  interrupt handler pokes it.  The second expiration causes an
1776	  NMI that prints a message. The third expiration causes a
1777	  global soft reset.
1778
1779	  When userspace has /dev/watchdog open, no poking is done
1780	  from the first interrupt, it is then only poked when the
1781	  device is written.
1782
 
 
 
 
 
 
 
 
 
 
1783config BCM2835_WDT
1784	tristate "Broadcom BCM2835 hardware watchdog"
1785	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1786	select WATCHDOG_CORE
1787	help
1788	  Watchdog driver for the built in watchdog hardware in Broadcom
1789	  BCM2835 SoC.
1790
1791	  To compile this driver as a loadable module, choose M here.
1792	  The module will be called bcm2835_wdt.
1793
1794config BCM_KONA_WDT
1795	tristate "BCM Kona Watchdog"
1796	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1797	select WATCHDOG_CORE
1798	help
1799	  Support for the watchdog timer on the following Broadcom BCM281xx
1800	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1801	  BCM28155 variants.
1802
1803	  Say 'Y' or 'M' here to enable the driver. The module will be called
1804	  bcm_kona_wdt.
1805
1806config BCM_KONA_WDT_DEBUG
1807	bool "DEBUGFS support for BCM Kona Watchdog"
1808	depends on BCM_KONA_WDT
1809	help
1810	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1811	  access to the driver's internal data structures as well as watchdog
1812	  timer hardware registres.
1813
1814	  If in doubt, say 'N'.
1815
1816config BCM7038_WDT
1817	tristate "BCM63xx/BCM7038 Watchdog"
1818	select WATCHDOG_CORE
1819	depends on HAS_IOMEM
1820	depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
1821	help
1822	  Watchdog driver for the built-in hardware in Broadcom 7038 and
1823	  later SoCs used in set-top boxes.  BCM7038 was made public
1824	  during the 2004 CES, and since then, many Broadcom chips use this
1825	  watchdog block, including some cable modem chips and DSL (63xx)
1826	  chips.
1827
1828config IMGPDC_WDT
1829	tristate "Imagination Technologies PDC Watchdog Timer"
1830	depends on HAS_IOMEM
1831	depends on MIPS || COMPILE_TEST
1832	select WATCHDOG_CORE
1833	help
1834	  Driver for Imagination Technologies PowerDown Controller
1835	  Watchdog Timer.
1836
1837	  To compile this driver as a loadable module, choose M here.
1838	  The module will be called imgpdc_wdt.
1839
1840config LANTIQ_WDT
1841	tristate "Lantiq SoC watchdog"
1842	depends on LANTIQ
1843	select WATCHDOG_CORE
1844	help
1845	  Hardware driver for the Lantiq SoC Watchdog Timer.
1846
1847config LOONGSON1_WDT
1848	tristate "Loongson1 SoC hardware watchdog"
1849	depends on MACH_LOONGSON32
1850	select WATCHDOG_CORE
1851	help
1852	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1853
1854config RALINK_WDT
1855	tristate "Ralink SoC watchdog"
1856	select WATCHDOG_CORE
1857	depends on RALINK
1858	help
1859	  Hardware driver for the Ralink SoC Watchdog Timer.
1860
1861config GXP_WATCHDOG
1862	tristate "HPE GXP watchdog support"
1863	depends on ARCH_HPE_GXP
1864	select WATCHDOG_CORE
1865	help
1866	  Say Y here to include support for the watchdog timer
1867	  in HPE GXP SoCs.
1868
1869	  To compile this driver as a module, choose M here.
1870	  The module will be called gxp-wdt.
1871
1872config MT7621_WDT
1873	tristate "Mediatek SoC watchdog"
1874	select WATCHDOG_CORE
1875	depends on SOC_MT7620 || SOC_MT7621
1876	help
1877	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1878
1879config PIC32_WDT
1880	tristate "Microchip PIC32 hardware watchdog"
1881	select WATCHDOG_CORE
1882	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1883	help
1884	  Watchdog driver for the built in watchdog hardware in a PIC32.
1885
1886	  Configuration bits must be set appropriately for the watchdog to be
1887	  controlled by this driver.
1888
1889	  To compile this driver as a loadable module, choose M here.
1890	  The module will be called pic32-wdt.
1891
1892config PIC32_DMT
1893	tristate "Microchip PIC32 Deadman Timer"
1894	select WATCHDOG_CORE
1895	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1896	help
1897	  Watchdog driver for PIC32 instruction fetch counting timer. This
1898	  specific timer is typically be used in mission critical and safety
1899	  critical applications, where any single failure of the software
1900	  functionality and sequencing must be detected.
1901
1902	  To compile this driver as a loadable module, choose M here.
1903	  The module will be called pic32-dmt.
1904
1905# PARISC Architecture
1906
1907# POWERPC Architecture
1908
1909config GEF_WDT
1910	tristate "GE Watchdog Timer"
1911	depends on GE_FPGA
1912	help
1913	  Watchdog timer found in a number of GE single board computers.
1914
1915config MPC5200_WDT
1916	bool "MPC52xx Watchdog Timer"
1917	depends on PPC_MPC52xx || COMPILE_TEST
1918	help
1919	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1920
1921config 8xxx_WDT
1922	tristate "MPC8xxx Platform Watchdog Timer"
1923	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1924	select WATCHDOG_CORE
1925	help
1926	  This driver is for a SoC level watchdog that exists on some
1927	  Freescale PowerPC processors. So far this driver supports:
1928	  - MPC8xx watchdogs
1929	  - MPC83xx watchdogs
1930	  - MPC86xx watchdogs
1931
1932	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1933
 
 
 
 
1934config PIKA_WDT
1935	tristate "PIKA FPGA Watchdog"
1936	depends on WARP || (PPC64 && COMPILE_TEST)
1937	default y
1938	help
1939	  This enables the watchdog in the PIKA FPGA. Currently used on
1940	  the Warp platform.
1941
1942config BOOKE_WDT
1943	tristate "PowerPC Book-E Watchdog Timer"
1944	depends on BOOKE || 4xx
1945	select WATCHDOG_CORE
1946	help
1947	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1948	  MPC85xx SOCs and the IBM PowerPC 440.
1949
1950	  Please see Documentation/watchdog/watchdog-api.rst for
1951	  more information.
1952
1953config BOOKE_WDT_DEFAULT_TIMEOUT
1954	int "PowerPC Book-E Watchdog Timer Default Timeout"
1955	depends on BOOKE_WDT
1956	default 38 if PPC_E500
1957	range 0 63 if PPC_E500
1958	default 3 if !PPC_E500
1959	range 0 3 if !PPC_E500
1960	help
1961	  Select the default watchdog timer period to be used by the PowerPC
1962	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1963	  position represented by this number transitions from zero to one.
1964
1965	  For Freescale Book-E processors, this is a number between 0 and 63.
1966	  For other Book-E processors, this is a number between 0 and 3.
1967
1968	  The value can be overridden by the wdt_period command-line parameter.
1969
1970config MEN_A21_WDT
1971	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1972	select WATCHDOG_CORE
1973	depends on GPIOLIB || COMPILE_TEST
1974	help
1975	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1976
1977	  The driver can also be built as a module. If so, the module will be
1978	  called mena21_wdt.
1979
1980	  If unsure select N here.
1981
1982# PPC64 Architecture
1983
1984config PSERIES_WDT
1985	tristate "POWER Architecture Platform Watchdog Timer"
1986	depends on PPC_PSERIES
1987	select WATCHDOG_CORE
1988	help
1989	  Driver for virtual watchdog timers provided by PAPR
1990	  hypervisors (e.g. PowerVM, KVM).
1991
1992config WATCHDOG_RTAS
1993	tristate "RTAS watchdog"
1994	depends on PPC_RTAS
1995	help
1996	  This driver adds watchdog support for the RTAS watchdog.
1997
1998	  To compile this driver as a module, choose M here. The module
1999	  will be called wdrtas.
2000
2001# S390 Architecture
2002
2003config DIAG288_WATCHDOG
2004	tristate "System z diag288 Watchdog"
2005	depends on S390
2006	select WATCHDOG_CORE
2007	help
2008	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
2009	  provide a virtual watchdog timer to their guest that cause a
2010	  user define Control Program command to be executed after a
2011	  timeout.
2012	  LPAR provides a very similar interface. This driver handles
2013	  both.
2014
2015	  To compile this driver as a module, choose M here. The module
2016	  will be called diag288_wdt.
2017
2018# SUPERH (sh + sh64) Architecture
2019
2020config SH_WDT
2021	tristate "SuperH Watchdog"
2022	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
2023	select WATCHDOG_CORE
2024	help
2025	  This driver adds watchdog support for the integrated watchdog in the
2026	  SuperH processors. If you have one of these processors and wish
2027	  to have watchdog support enabled, say Y, otherwise say N.
2028
2029	  As a side note, saying Y here will automatically boost HZ to 1000
2030	  so that the timer has a chance to clear the overflow counter. On
2031	  slower systems (such as the SH-2 and SH-3) this will likely yield
2032	  some performance issues. As such, the WDT should be avoided here
2033	  unless it is absolutely necessary.
2034
2035	  To compile this driver as a module, choose M here: the
2036	  module will be called shwdt.
2037
2038# SPARC Architecture
2039
2040# SPARC64 Architecture
2041
2042config WATCHDOG_CP1XXX
2043	tristate "CP1XXX Hardware Watchdog support"
2044	depends on SPARC64 && PCI
2045	help
2046	  This is the driver for the hardware watchdog timers present on
2047	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2048
2049	  To compile this driver as a module, choose M here: the
2050	  module will be called cpwatchdog.
2051
2052	  If you do not have a CompactPCI model CP1400 or CP1500, or
2053	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2054	  you should say N to this option.
2055
2056config WATCHDOG_RIO
2057	tristate "RIO Hardware Watchdog support"
2058	depends on SPARC64 && PCI
2059	help
2060	  Say Y here to support the hardware watchdog capability on Sun RIO
2061	  machines.  The watchdog timeout period is normally one minute but
2062	  can be changed with a boot-time parameter.
2063
2064config WATCHDOG_SUN4V
2065	tristate "Sun4v Watchdog support"
2066	select WATCHDOG_CORE
2067	depends on SPARC64
2068	help
2069	  Say Y here to support the hypervisor watchdog capability embedded
2070	  in the SPARC sun4v architecture.
2071
2072	  To compile this driver as a module, choose M here. The module will
2073	  be called sun4v_wdt.
2074
2075# XTENSA Architecture
2076
2077# Xen Architecture
2078
2079config XEN_WDT
2080	tristate "Xen Watchdog support"
2081	depends on XEN
2082	select WATCHDOG_CORE
2083	help
2084	  Say Y here to support the hypervisor watchdog capability provided
2085	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2086	  minute but can be changed with a boot-time parameter.
2087
2088config UML_WATCHDOG
2089	tristate "UML watchdog"
2090	depends on UML || COMPILE_TEST
2091
2092#
2093# ISA-based Watchdog Cards
2094#
2095
2096comment "ISA-based Watchdog Cards"
2097	depends on ISA
2098
2099config PCWATCHDOG
2100	tristate "Berkshire Products ISA-PC Watchdog"
2101	depends on ISA
2102	help
2103	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2104	  This card simply watches your kernel to make sure it doesn't freeze,
2105	  and if it does, it reboots your computer after a certain amount of
2106	  time. This driver is like the WDT501 driver but for different
2107	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2108	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2109
2110	  To compile this driver as a module, choose M here: the
2111	  module will be called pcwd.
2112
2113	  Most people will say N.
2114
2115config MIXCOMWD
2116	tristate "Mixcom Watchdog"
2117	depends on ISA
2118	help
2119	  This is a driver for the Mixcom hardware watchdog cards.  This
2120	  watchdog simply watches your kernel to make sure it doesn't freeze,
2121	  and if it does, it reboots your computer after a certain amount of
2122	  time.
2123
2124	  To compile this driver as a module, choose M here: the
2125	  module will be called mixcomwd.
2126
2127	  Most people will say N.
2128
2129config WDT
2130	tristate "WDT Watchdog timer"
2131	depends on ISA
2132	help
2133	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2134	  otherwise N. It is not possible to probe for this board, which means
2135	  that you have to inform the kernel about the IO port and IRQ that
2136	  is needed (you can do this via the io and irq parameters)
2137
2138	  To compile this driver as a module, choose M here: the
2139	  module will be called wdt.
2140
2141#
2142# PCI-based Watchdog Cards
2143#
2144
2145comment "PCI-based Watchdog Cards"
2146	depends on PCI
2147
2148config PCIPCWATCHDOG
2149	tristate "Berkshire Products PCI-PC Watchdog"
2150	depends on PCI
2151	help
2152	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2153	  This card simply watches your kernel to make sure it doesn't freeze,
2154	  and if it does, it reboots your computer after a certain amount of
2155	  time. The card can also monitor the internal temperature of the PC.
2156	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2157
2158	  To compile this driver as a module, choose M here: the
2159	  module will be called pcwd_pci.
2160
2161	  Most people will say N.
2162
2163config WDTPCI
2164	tristate "PCI-WDT500/501 Watchdog timer"
2165	depends on PCI
2166	help
2167	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2168
2169	  If you have a PCI-WDT501 watchdog board then you can enable the
2170	  temperature sensor by setting the type parameter to 501.
2171
2172	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2173	  can do this via the tachometer parameter. Only do this if you have a
2174	  fan tachometer actually set up.
2175
2176	  To compile this driver as a module, choose M here: the
2177	  module will be called wdt_pci.
2178
2179#
2180# USB-based Watchdog Cards
2181#
2182
2183comment "USB-based Watchdog Cards"
2184	depends on USB
2185
2186config USBPCWATCHDOG
2187	tristate "Berkshire Products USB-PC Watchdog"
2188	depends on USB
2189	help
2190	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2191	  This card simply watches your kernel to make sure it doesn't freeze,
2192	  and if it does, it reboots your computer after a certain amount of
2193	  time. The card can also monitor the internal temperature of the PC.
2194	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2195
2196	  To compile this driver as a module, choose M here: the
2197	  module will be called pcwd_usb.
2198
2199	  Most people will say N.
2200
2201config KEEMBAY_WATCHDOG
2202	tristate "Intel Keem Bay SoC non-secure watchdog"
2203	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2204	select WATCHDOG_CORE
2205	help
2206	  This option enable support for an In-secure watchdog timer driver for
2207	  Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2208	  count unit. An interrupt will be triggered, when the count crosses
2209	  the threshold configured in the register.
2210
2211	  To compile this driver as a module, choose M here: the
2212	  module will be called keembay_wdt.
2213
2214endif # WATCHDOG