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