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 help 561 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 562 SoCs. This will reboot the system when the timer expires with 563 the watchdog enabled. 564 565 The driver is limited by the speed of the system's PCLK 566 signal, so with reasonably fast systems (PCLK around 50-66MHz) 567 then watchdog intervals of over approximately 20seconds are 568 unavailable. 569 570 Choose Y/M here only if you build for such Samsung SoC. 571 The driver can be built as a module by choosing M, and will 572 be called s3c2410_wdt. 573 574config SA1100_WATCHDOG 575 tristate "SA1100/PXA2xx watchdog" 576 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 577 help 578 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 579 reboot your system when timeout is reached. 580 581 NOTE: once enabled, this timer cannot be disabled. 582 583 To compile this driver as a module, choose M here: the 584 module will be called sa1100_wdt. 585 586config DW_WATCHDOG 587 tristate "Synopsys DesignWare watchdog" 588 depends on HAS_IOMEM 589 select WATCHDOG_CORE 590 help 591 Say Y here if to include support for the Synopsys DesignWare 592 watchdog timer found in many chips. 593 To compile this driver as a module, choose M here: the 594 module will be called dw_wdt. 595 596config EP93XX_WATCHDOG 597 tristate "EP93xx Watchdog" 598 depends on ARCH_EP93XX || COMPILE_TEST 599 select WATCHDOG_CORE 600 help 601 Say Y here if to include support for the watchdog timer 602 embedded in the Cirrus Logic EP93xx family of devices. 603 604 To compile this driver as a module, choose M here: the 605 module will be called ep93xx_wdt. 606 607config OMAP_WATCHDOG 608 tristate "OMAP Watchdog" 609 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 610 select WATCHDOG_CORE 611 help 612 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 613 Say 'Y' here to enable the 614 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 615 616config PNX4008_WATCHDOG 617 tristate "LPC32XX Watchdog" 618 depends on ARCH_LPC32XX || COMPILE_TEST 619 select WATCHDOG_CORE 620 help 621 Say Y here if to include support for the watchdog timer 622 in the LPC32XX processor. 623 This driver can be built as a module by choosing M. The module 624 will be called pnx4008_wdt. 625 626 Say N if you are unsure. 627 628config DAVINCI_WATCHDOG 629 tristate "DaVinci watchdog" 630 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 631 select WATCHDOG_CORE 632 help 633 Say Y here if to include support for the watchdog timer 634 in the DaVinci DM644x/DM646x or Keystone processors. 635 To compile this driver as a module, choose M here: the 636 module will be called davinci_wdt. 637 638 NOTE: once enabled, this timer cannot be disabled. 639 Say N if you are unsure. 640 641config K3_RTI_WATCHDOG 642 tristate "Texas Instruments K3 RTI watchdog" 643 depends on ARCH_K3 || COMPILE_TEST 644 select WATCHDOG_CORE 645 help 646 Say Y here if you want to include support for the K3 watchdog 647 timer (RTI module) available in the K3 generation of processors. 648 649config ORION_WATCHDOG 650 tristate "Orion watchdog" 651 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 652 depends on ARM 653 select WATCHDOG_CORE 654 help 655 Say Y here if to include support for the watchdog timer 656 in the Marvell Orion5x and Kirkwood ARM SoCs. 657 To compile this driver as a module, choose M here: the 658 module will be called orion_wdt. 659 660config RN5T618_WATCHDOG 661 tristate "Ricoh RN5T618 watchdog" 662 depends on MFD_RN5T618 || COMPILE_TEST 663 select WATCHDOG_CORE 664 help 665 If you say yes here you get support for watchdog on the Ricoh 666 RN5T618 PMIC. 667 668 This driver can also be built as a module. If so, the module 669 will be called rn5t618_wdt. 670 671config SUNXI_WATCHDOG 672 tristate "Allwinner SoCs watchdog support" 673 depends on ARCH_SUNXI || COMPILE_TEST 674 select WATCHDOG_CORE 675 help 676 Say Y here to include support for the watchdog timer 677 in Allwinner SoCs. 678 To compile this driver as a module, choose M here: the 679 module will be called sunxi_wdt. 680 681config NPCM7XX_WATCHDOG 682 tristate "Nuvoton NPCM750 watchdog" 683 depends on ARCH_NPCM || COMPILE_TEST 684 default y if ARCH_NPCM7XX 685 select WATCHDOG_CORE 686 help 687 Say Y here to include Watchdog timer support for the 688 watchdog embedded into the NPCM7xx. 689 This watchdog is used to reset the system and thus cannot be 690 compiled as a module. 691 692config TWL4030_WATCHDOG 693 tristate "TWL4030 Watchdog" 694 depends on TWL4030_CORE 695 select WATCHDOG_CORE 696 help 697 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 698 watchdog timer support for TWL4030 chips. 699 700config STMP3XXX_RTC_WATCHDOG 701 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 702 depends on RTC_DRV_STMP || COMPILE_TEST 703 select WATCHDOG_CORE 704 help 705 Say Y here to include support for the watchdog timer inside 706 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 707 To compile this driver as a module, choose M here: the 708 module will be called stmp3xxx_rtc_wdt. 709 710config TS4800_WATCHDOG 711 tristate "TS-4800 Watchdog" 712 depends on HAS_IOMEM && OF 713 depends on SOC_IMX51 || COMPILE_TEST 714 select WATCHDOG_CORE 715 select MFD_SYSCON 716 help 717 Technologic Systems TS-4800 has watchdog timer implemented in 718 an external FPGA. Say Y here if you want to support for the 719 watchdog timer on TS-4800 board. 720 721config TS72XX_WATCHDOG 722 tristate "TS-72XX SBC Watchdog" 723 depends on MACH_TS72XX || COMPILE_TEST 724 select WATCHDOG_CORE 725 help 726 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 727 watchdog timer implemented in a external CPLD chip. Say Y here 728 if you want to support for the watchdog timer on TS-72XX boards. 729 730 To compile this driver as a module, choose M here: the 731 module will be called ts72xx_wdt. 732 733config MAX63XX_WATCHDOG 734 tristate "Max63xx watchdog" 735 depends on HAS_IOMEM 736 select WATCHDOG_CORE 737 help 738 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 739 740config MAX77620_WATCHDOG 741 tristate "Maxim Max77620 Watchdog Timer" 742 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 743 select WATCHDOG_CORE 744 help 745 This is the driver for the Max77620 watchdog timer. 746 Say 'Y' here to enable the watchdog timer support for 747 MAX77620 chips. To compile this driver as a module, 748 choose M here: the module will be called max77620_wdt. 749 750config IMX2_WDT 751 tristate "IMX2+ Watchdog" 752 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 753 select REGMAP_MMIO 754 select WATCHDOG_CORE 755 help 756 This is the driver for the hardware watchdog 757 on the Freescale IMX2 and later processors. 758 If you have one of these processors and wish to have 759 watchdog support enabled, say Y, otherwise say N. 760 761 To compile this driver as a module, choose M here: the 762 module will be called imx2_wdt. 763 764config IMX_SC_WDT 765 tristate "IMX SC Watchdog" 766 depends on HAVE_ARM_SMCCC 767 depends on IMX_SCU || COMPILE_TEST 768 select WATCHDOG_CORE 769 help 770 This is the driver for the system controller watchdog 771 on the NXP i.MX SoCs with system controller inside, the 772 watchdog driver will call ARM SMC API and trap into 773 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 774 will request system controller to execute the operations. 775 If you have one of these processors and wish to have 776 watchdog support enabled, say Y, otherwise say N. 777 778 To compile this driver as a module, choose M here: the 779 module will be called imx_sc_wdt. 780 781config IMX7ULP_WDT 782 tristate "IMX7ULP Watchdog" 783 depends on ARCH_MXC || COMPILE_TEST 784 select WATCHDOG_CORE 785 help 786 This is the driver for the hardware watchdog on the Freescale 787 IMX7ULP and later processors. If you have one of these 788 processors and wish to have watchdog support enabled, 789 say Y, otherwise say N. 790 791 To compile this driver as a module, choose M here: the 792 module will be called imx7ulp_wdt. 793 794config DB500_WATCHDOG 795 tristate "ST-Ericsson DB800 watchdog" 796 depends on MFD_DB8500_PRCMU 797 select WATCHDOG_CORE 798 default y 799 help 800 Say Y here to include Watchdog timer support for the watchdog 801 existing in the prcmu of ST-Ericsson DB8500 platform. 802 803 To compile this driver as a module, choose M here: the 804 module will be called db500_wdt. 805 806config RETU_WATCHDOG 807 tristate "Retu watchdog" 808 depends on MFD_RETU 809 select WATCHDOG_CORE 810 help 811 Retu watchdog driver for Nokia Internet Tablets (770, N800, 812 N810). At least on N800 the watchdog cannot be disabled, so 813 this driver is essential and you should enable it. 814 815 To compile this driver as a module, choose M here: the 816 module will be called retu_wdt. 817 818config MOXART_WDT 819 tristate "MOXART watchdog" 820 depends on ARCH_MOXART || COMPILE_TEST 821 help 822 Say Y here to include Watchdog timer support for the watchdog 823 existing on the MOXA ART SoC series platforms. 824 825 To compile this driver as a module, choose M here: the 826 module will be called moxart_wdt. 827 828config ST_LPC_WATCHDOG 829 tristate "STMicroelectronics LPC Watchdog" 830 depends on ARCH_STI || COMPILE_TEST 831 depends on OF 832 select WATCHDOG_CORE 833 help 834 Say Y here to include STMicroelectronics Low Power Controller 835 (LPC) based Watchdog timer support. 836 837 To compile this driver as a module, choose M here: the 838 module will be called st_lpc_wdt. 839 840config TEGRA_WATCHDOG 841 tristate "Tegra watchdog" 842 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 843 select WATCHDOG_CORE 844 help 845 Say Y here to include support for the watchdog timer 846 embedded in NVIDIA Tegra SoCs. 847 848 To compile this driver as a module, choose M here: the 849 module will be called tegra_wdt. 850 851config QCOM_WDT 852 tristate "QCOM watchdog" 853 depends on HAS_IOMEM 854 depends on ARCH_QCOM || COMPILE_TEST 855 select WATCHDOG_CORE 856 help 857 Say Y here to include Watchdog timer support for the watchdog found 858 on QCOM chipsets. Currently supported targets are the MSM8960, 859 APQ8064, and IPQ8064. 860 861 To compile this driver as a module, choose M here: the 862 module will be called qcom_wdt. 863 864config MESON_GXBB_WATCHDOG 865 tristate "Amlogic Meson GXBB SoCs watchdog support" 866 depends on ARCH_MESON || COMPILE_TEST 867 select WATCHDOG_CORE 868 help 869 Say Y here to include support for the watchdog timer 870 in Amlogic Meson GXBB SoCs. 871 To compile this driver as a module, choose M here: the 872 module will be called meson_gxbb_wdt. 873 874config MESON_WATCHDOG 875 tristate "Amlogic Meson SoCs watchdog support" 876 depends on ARCH_MESON || COMPILE_TEST 877 select WATCHDOG_CORE 878 help 879 Say Y here to include support for the watchdog timer 880 in Amlogic Meson SoCs. 881 To compile this driver as a module, choose M here: the 882 module will be called meson_wdt. 883 884config MEDIATEK_WATCHDOG 885 tristate "Mediatek SoCs watchdog support" 886 depends on ARCH_MEDIATEK || COMPILE_TEST 887 default ARCH_MEDIATEK 888 select WATCHDOG_CORE 889 select RESET_CONTROLLER 890 help 891 Say Y here to include support for the watchdog timer 892 in Mediatek SoCs. 893 To compile this driver as a module, choose M here: the 894 module will be called mtk_wdt. 895 896config DIGICOLOR_WATCHDOG 897 tristate "Conexant Digicolor SoCs watchdog support" 898 depends on ARCH_DIGICOLOR || COMPILE_TEST 899 select WATCHDOG_CORE 900 help 901 Say Y here to include support for the watchdog timer 902 in Conexant Digicolor SoCs. 903 To compile this driver as a module, choose M here: the 904 module will be called digicolor_wdt. 905 906config ARM_SMC_WATCHDOG 907 tristate "ARM Secure Monitor Call based watchdog support" 908 depends on ARM || ARM64 909 depends on OF 910 depends on HAVE_ARM_SMCCC 911 select WATCHDOG_CORE 912 help 913 Say Y here to include support for a watchdog timer 914 implemented by the EL3 Secure Monitor on ARM platforms. 915 Requires firmware support. 916 To compile this driver as a module, choose M here: the 917 module will be called arm_smc_wdt. 918 919config LPC18XX_WATCHDOG 920 tristate "LPC18xx/43xx Watchdog" 921 depends on ARCH_LPC18XX || COMPILE_TEST 922 depends on HAS_IOMEM 923 select WATCHDOG_CORE 924 help 925 Say Y here if to include support for the watchdog timer 926 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 927 processors. 928 To compile this driver as a module, choose M here: the 929 module will be called lpc18xx_wdt. 930 931config RENESAS_WDT 932 tristate "Renesas WDT Watchdog" 933 depends on ARCH_RENESAS || COMPILE_TEST 934 select WATCHDOG_CORE 935 help 936 This driver adds watchdog support for the integrated watchdogs in the 937 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 938 939config RENESAS_RZAWDT 940 tristate "Renesas RZ/A WDT Watchdog" 941 depends on ARCH_RENESAS || COMPILE_TEST 942 select WATCHDOG_CORE 943 help 944 This driver adds watchdog support for the integrated watchdogs in the 945 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 946 947config RENESAS_RZN1WDT 948 tristate "Renesas RZ/N1 watchdog" 949 depends on ARCH_RENESAS || COMPILE_TEST 950 select WATCHDOG_CORE 951 help 952 This driver adds watchdog support for the integrated watchdogs in the 953 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 954 955config RENESAS_RZG2LWDT 956 tristate "Renesas RZ/G2L WDT Watchdog" 957 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 958 depends on PM || COMPILE_TEST 959 select WATCHDOG_CORE 960 help 961 This driver adds watchdog support for the integrated watchdogs in the 962 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 963 964config RENESAS_RZV2HWDT 965 tristate "Renesas RZ/V2H(P) WDT Watchdog" 966 depends on ARCH_R9A09G057 || COMPILE_TEST 967 depends on PM || COMPILE_TEST 968 select WATCHDOG_CORE 969 help 970 This driver adds watchdog support for the integrated watchdogs in the 971 Renesas RZ/V2H(P) SoCs. These watchdogs can be used to reset a system. 972 973config ASPEED_WATCHDOG 974 tristate "Aspeed BMC watchdog support" 975 depends on ARCH_ASPEED || COMPILE_TEST 976 select WATCHDOG_CORE 977 help 978 Say Y here to include support for the watchdog timer 979 in Aspeed BMC SoCs. 980 981 This driver is required to reboot the SoC. 982 983 To compile this driver as a module, choose M here: the 984 module will be called aspeed_wdt. 985 986config STM32_WATCHDOG 987 tristate "STM32 Independent WatchDoG (IWDG) support" 988 depends on ARCH_STM32 || COMPILE_TEST 989 select WATCHDOG_CORE 990 default y 991 help 992 Say Y here to include support for the watchdog timer 993 in stm32 SoCs. 994 995 To compile this driver as a module, choose M here: the 996 module will be called stm32_iwdg. 997 998config STPMIC1_WATCHDOG 999 tristate "STPMIC1 PMIC watchdog support" 1000 depends on MFD_STPMIC1 1001 select WATCHDOG_CORE 1002 help 1003 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 1004 If the watchdog timer expires, stpmic1 will shut down all its power 1005 supplies. 1006 1007 To compile this driver as a module, choose M here: the 1008 module will be called spmic1_wdt. 1009 1010config UNIPHIER_WATCHDOG 1011 tristate "UniPhier watchdog support" 1012 depends on ARCH_UNIPHIER || COMPILE_TEST 1013 depends on OF && MFD_SYSCON 1014 select WATCHDOG_CORE 1015 help 1016 Say Y here to include support watchdog timer embedded 1017 into the UniPhier system. 1018 1019 To compile this driver as a module, choose M here: the 1020 module will be called uniphier_wdt. 1021 1022config RTD119X_WATCHDOG 1023 bool "Realtek RTD119x/RTD129x watchdog support" 1024 depends on ARCH_REALTEK || COMPILE_TEST 1025 depends on OF 1026 select WATCHDOG_CORE 1027 default ARCH_REALTEK 1028 help 1029 Say Y here to include support for the watchdog timer in 1030 Realtek RTD1295 SoCs. 1031 1032config REALTEK_OTTO_WDT 1033 tristate "Realtek Otto MIPS watchdog support" 1034 depends on MACH_REALTEK_RTL || COMPILE_TEST 1035 depends on COMMON_CLK 1036 select WATCHDOG_CORE 1037 default MACH_REALTEK_RTL 1038 help 1039 Say Y here to include support for the watchdog timer on Realtek 1040 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1041 notifications and system reset on timeout. 1042 1043 When built as a module this will be called realtek_otto_wdt. 1044 1045config SPRD_WATCHDOG 1046 tristate "Spreadtrum watchdog support" 1047 depends on ARCH_SPRD || COMPILE_TEST 1048 select WATCHDOG_CORE 1049 help 1050 Say Y here to include watchdog timer supported 1051 by Spreadtrum system. 1052 1053config PM8916_WATCHDOG 1054 tristate "QCOM PM8916 pmic watchdog" 1055 depends on OF && MFD_SPMI_PMIC 1056 select WATCHDOG_CORE 1057 help 1058 Say Y here to include support watchdog timer embedded into the 1059 pm8916 module. 1060 1061config VISCONTI_WATCHDOG 1062 tristate "Toshiba Visconti series watchdog support" 1063 depends on ARCH_VISCONTI || COMPILE_TEST 1064 select WATCHDOG_CORE 1065 help 1066 Say Y here to include support for the watchdog timer in Toshiba 1067 Visconti SoCs. 1068 1069config MSC313E_WATCHDOG 1070 tristate "MStar MSC313e watchdog" 1071 depends on ARCH_MSTARV7 || COMPILE_TEST 1072 select WATCHDOG_CORE 1073 help 1074 Say Y here to include support for the Watchdog timer embedded 1075 into MStar MSC313e chips. This will reboot your system when the 1076 timeout is reached. 1077 1078 To compile this driver as a module, choose M here: the 1079 module will be called msc313e_wdt. 1080 1081config APPLE_WATCHDOG 1082 tristate "Apple SoC watchdog" 1083 depends on ARCH_APPLE || COMPILE_TEST 1084 select WATCHDOG_CORE 1085 help 1086 Say Y here to include support for the Watchdog found in Apple 1087 SoCs such as the M1. Next to the common watchdog features this 1088 driver is also required in order to reboot these SoCs. 1089 1090 To compile this driver as a module, choose M here: the 1091 module will be called apple_wdt. 1092 1093config SUNPLUS_WATCHDOG 1094 tristate "Sunplus watchdog support" 1095 depends on ARCH_SUNPLUS || COMPILE_TEST 1096 select WATCHDOG_CORE 1097 help 1098 Say Y here to include support for the watchdog timer 1099 in Sunplus SoCs. 1100 1101 To compile this driver as a module, choose M here: the 1102 module will be called sunplus_wdt. 1103 1104# X86 (i386 + ia64 + x86_64) Architecture 1105 1106config ACQUIRE_WDT 1107 tristate "Acquire SBC Watchdog Timer" 1108 depends on X86 1109 help 1110 This is the driver for the hardware watchdog on Single Board 1111 Computers produced by Acquire Inc (and others). This watchdog 1112 simply watches your kernel to make sure it doesn't freeze, and if 1113 it does, it reboots your computer after a certain amount of time. 1114 1115 To compile this driver as a module, choose M here: the 1116 module will be called acquirewdt. 1117 1118 Most people will say N. 1119 1120config ADVANTECH_WDT 1121 tristate "Advantech SBC Watchdog Timer" 1122 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1123 help 1124 If you are configuring a Linux kernel for the Advantech single-board 1125 computer, say `Y' here to support its built-in watchdog timer 1126 feature. More information can be found at 1127 <https://www.advantech.com.tw/products/> 1128 1129config ADVANTECH_EC_WDT 1130 tristate "Advantech Embedded Controller Watchdog Timer" 1131 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1132 select ISA_BUS_API 1133 select WATCHDOG_CORE 1134 help 1135 This driver supports Advantech products with ITE based Embedded Controller. 1136 It does not support Advantech products with other ECs or without EC. 1137 1138config ALIM1535_WDT 1139 tristate "ALi M1535 PMU Watchdog Timer" 1140 depends on (X86 || COMPILE_TEST) && PCI 1141 help 1142 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1143 1144 To compile this driver as a module, choose M here: the 1145 module will be called alim1535_wdt. 1146 1147 Most people will say N. 1148 1149config ALIM7101_WDT 1150 tristate "ALi M7101 PMU Computer Watchdog" 1151 depends on PCI 1152 help 1153 This is the driver for the hardware watchdog on the ALi M7101 PMU 1154 as used in the x86 Cobalt servers and also found in some 1155 SPARC Netra servers too. 1156 1157 To compile this driver as a module, choose M here: the 1158 module will be called alim7101_wdt. 1159 1160 Most people will say N. 1161 1162config EBC_C384_WDT 1163 tristate "WinSystems EBC-C384 Watchdog Timer" 1164 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1165 select ISA_BUS_API 1166 select WATCHDOG_CORE 1167 help 1168 Enables watchdog timer support for the watchdog timer on the 1169 WinSystems EBC-C384 motherboard. The timeout may be configured via 1170 the timeout module parameter. 1171 1172config EXAR_WDT 1173 tristate "Exar Watchdog Timer" 1174 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1175 select WATCHDOG_CORE 1176 help 1177 Enables watchdog timer support for the watchdog timer present 1178 in some Exar/MaxLinear UART chips like the XR28V38x. 1179 1180 To compile this driver as a module, choose M here: the 1181 module will be called exar_wdt. 1182 1183config F71808E_WDT 1184 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1185 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1186 select WATCHDOG_CORE 1187 help 1188 This is the driver for the hardware watchdog on the Fintek F71808E, 1189 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1190 F81866 Super I/O controllers. 1191 1192 You can compile this driver directly into the kernel, or use 1193 it as a module. The module will be called f71808e_wdt. 1194 1195config SP5100_TCO 1196 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1197 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1198 select WATCHDOG_CORE 1199 help 1200 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1201 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1202 the machine after its expiration. The expiration time can be 1203 configured with the "heartbeat" parameter. 1204 1205 To compile this driver as a module, choose M here: the 1206 module will be called sp5100_tco. 1207 1208config GEODE_WDT 1209 tristate "AMD Geode CS5535/CS5536 Watchdog" 1210 depends on CS5535_MFGPT 1211 help 1212 This driver enables a watchdog capability built into the 1213 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1214 processors. This watchdog watches your kernel to make sure 1215 it doesn't freeze, and if it does, it reboots your computer after 1216 a certain amount of time. 1217 1218 You can compile this driver directly into the kernel, or use 1219 it as a module. The module will be called geodewdt. 1220 1221config SC520_WDT 1222 tristate "AMD Elan SC520 processor Watchdog" 1223 depends on MELAN || COMPILE_TEST 1224 help 1225 This is the driver for the hardware watchdog built in to the 1226 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1227 This watchdog simply watches your kernel to make sure it doesn't 1228 freeze, and if it does, it reboots your computer after a certain 1229 amount of time. 1230 1231 You can compile this driver directly into the kernel, or use 1232 it as a module. The module will be called sc520_wdt. 1233 1234config SBC_FITPC2_WATCHDOG 1235 tristate "Compulab SBC-FITPC2 watchdog" 1236 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1237 help 1238 This is the driver for the built-in watchdog timer on the fit-PC2, 1239 fit-PC2i, CM-iAM single-board computers made by Compulab. 1240 1241 It's possible to enable the watchdog timer either from BIOS (F2) or 1242 from booted Linux. 1243 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1244 operational range. 1245 1246 Entering BIOS setup temporarily disables watchdog operation regardless 1247 of current state, so system will not be restarted while user is in 1248 BIOS setup. 1249 1250 Once the watchdog is enabled the system will be restarted every 1251 "Watchdog Timer Value" period, so to prevent it user can restart or 1252 disable the watchdog. 1253 1254 To compile this driver as a module, choose M here: the 1255 module will be called sbc_fitpc2_wdt. 1256 1257 Most people will say N. 1258 1259config EUROTECH_WDT 1260 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1261 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1262 help 1263 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1264 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1265 information are at <http://www.eurotech.it/>. 1266 1267config IB700_WDT 1268 tristate "IB700 SBC Watchdog Timer" 1269 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1270 help 1271 This is the driver for the hardware watchdog on the IB700 Single 1272 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1273 watchdog simply watches your kernel to make sure it doesn't freeze, 1274 and if it does, it reboots your computer after a certain amount of time. 1275 1276 This driver is like the WDT501 driver but for slightly different 1277 hardware. 1278 1279 To compile this driver as a module, choose M here: the 1280 module will be called ib700wdt. 1281 1282 Most people will say N. 1283 1284config IBMASR 1285 tristate "IBM Automatic Server Restart" 1286 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1287 help 1288 This is the driver for the IBM Automatic Server Restart watchdog 1289 timer built-in into some eServer xSeries machines. 1290 1291 To compile this driver as a module, choose M here: the 1292 module will be called ibmasr. 1293 1294config WAFER_WDT 1295 tristate "ICP Single Board Computer Watchdog Timer" 1296 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1297 help 1298 This is a driver for the hardware watchdog on the ICP Single 1299 Board Computer. This driver is working on (at least) the following 1300 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1301 1302 To compile this driver as a module, choose M here: the 1303 module will be called wafer5823wdt. 1304 1305config I6300ESB_WDT 1306 tristate "Intel 6300ESB Timer/Watchdog" 1307 depends on PCI 1308 select WATCHDOG_CORE 1309 help 1310 Hardware driver for the watchdog timer built into the Intel 1311 6300ESB controller hub. 1312 1313 To compile this driver as a module, choose M here: the 1314 module will be called i6300esb. 1315 1316config IE6XX_WDT 1317 tristate "Intel Atom E6xx Watchdog" 1318 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1319 select WATCHDOG_CORE 1320 select MFD_CORE 1321 select LPC_SCH 1322 help 1323 Hardware driver for the watchdog timer built into the Intel 1324 Atom E6XX (TunnelCreek) processor. 1325 1326 To compile this driver as a module, choose M here: the 1327 module will be called ie6xx_wdt. 1328 1329config INTEL_MID_WATCHDOG 1330 tristate "Intel MID Watchdog Timer" 1331 depends on X86_INTEL_MID 1332 select WATCHDOG_CORE 1333 help 1334 Watchdog timer driver built into the Intel SCU for Intel MID 1335 Platforms. 1336 1337 This driver currently supports only the watchdog evolution 1338 implementation in SCU, available for Merrifield generation. 1339 1340 To compile this driver as a module, choose M here. 1341 1342config ITCO_WDT 1343 tristate "Intel TCO Timer/Watchdog" 1344 depends on X86 && PCI 1345 select WATCHDOG_CORE 1346 depends on I2C || I2C=n 1347 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1348 depends on HAS_IOPORT # for I2C_I801 1349 select LPC_ICH if !EXPERT 1350 select I2C_I801 if !EXPERT && I2C 1351 help 1352 Hardware driver for the intel TCO timer based watchdog devices. 1353 These drivers are included in the Intel 82801 I/O Controller 1354 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1355 controller hub. 1356 1357 The TCO (Total Cost of Ownership) timer is a watchdog timer 1358 that will reboot the machine after its second expiration. The 1359 expiration time can be configured with the "heartbeat" parameter. 1360 1361 On some motherboards the driver may fail to reset the chipset's 1362 NO_REBOOT flag which prevents the watchdog from rebooting the 1363 machine. If this is the case you will get a kernel message like 1364 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1365 1366 To compile this driver as a module, choose M here: the 1367 module will be called iTCO_wdt. 1368 1369config ITCO_VENDOR_SUPPORT 1370 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1371 depends on ITCO_WDT 1372 help 1373 Add vendor specific support to the intel TCO timer based watchdog 1374 devices. At this moment we only have additional support for some 1375 SuperMicro Inc. motherboards. 1376 1377config IT8712F_WDT 1378 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1379 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1380 help 1381 This is the driver for the built-in watchdog timer on the IT8712F 1382 Super I/0 chipset used on many motherboards. 1383 1384 If the driver does not work, then make sure that the game port in 1385 the BIOS is enabled. 1386 1387 To compile this driver as a module, choose M here: the 1388 module will be called it8712f_wdt. 1389 1390config IT87_WDT 1391 tristate "IT87 Watchdog Timer" 1392 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1393 select WATCHDOG_CORE 1394 help 1395 This is the driver for the hardware watchdog on the ITE IT8607, 1396 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1397 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1398 IT8783 Super I/O chips. 1399 1400 This watchdog simply watches your kernel to make sure it doesn't 1401 freeze, and if it does, it reboots your computer after a certain 1402 amount of time. 1403 1404 To compile this driver as a module, choose M here: the module will 1405 be called it87_wdt. 1406 1407config HP_WATCHDOG 1408 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1409 select WATCHDOG_CORE 1410 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1411 help 1412 A software monitoring watchdog and NMI handling driver. This driver 1413 will detect lockups and provide a stack trace. This is a driver that 1414 will only load on an HP ProLiant system with a minimum of iLO2 support. 1415 To compile this driver as a module, choose M here: the module will be 1416 called hpwdt. 1417 1418config HPWDT_NMI_DECODING 1419 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1420 depends on X86 && HP_WATCHDOG 1421 default y 1422 help 1423 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1424 "Generate NMI to System" virtual button. When an NMI is claimed 1425 by the driver, panic is called. 1426 1427config KEMPLD_WDT 1428 tristate "Kontron COM Watchdog Timer" 1429 depends on MFD_KEMPLD 1430 select WATCHDOG_CORE 1431 help 1432 Support for the PLD watchdog on some Kontron ETX and COMexpress 1433 (ETXexpress) modules 1434 1435 This driver can also be built as a module. If so, the module will be 1436 called kempld_wdt. 1437 1438config SC1200_WDT 1439 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1440 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1441 help 1442 This is a driver for National Semiconductor PC87307/PC97307 hardware 1443 watchdog cards as found on the SC1200. This watchdog is mainly used 1444 for power management purposes and can be used to power down the device 1445 during inactivity periods (includes interrupt activity monitoring). 1446 1447 To compile this driver as a module, choose M here: the 1448 module will be called sc1200wdt. 1449 1450 Most people will say N. 1451 1452config SCx200_WDT 1453 tristate "National Semiconductor SCx200 Watchdog" 1454 depends on SCx200 && PCI 1455 help 1456 Enable the built-in watchdog timer support on the National 1457 Semiconductor SCx200 processors. 1458 1459 If compiled as a module, it will be called scx200_wdt. 1460 1461config PC87413_WDT 1462 tristate "NS PC87413 watchdog" 1463 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1464 help 1465 This is the driver for the hardware watchdog on the PC87413 chipset 1466 This watchdog simply watches your kernel to make sure it doesn't 1467 freeze, and if it does, it reboots your computer after a certain 1468 amount of time. 1469 1470 To compile this driver as a module, choose M here: the 1471 module will be called pc87413_wdt. 1472 1473 Most people will say N. 1474 1475config NV_TCO 1476 tristate "nVidia TCO Timer/Watchdog" 1477 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1478 help 1479 Hardware driver for the TCO timer built into the nVidia Hub family 1480 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1481 watchdog timer that will reboot the machine after its second 1482 expiration. The expiration time can be configured with the 1483 "heartbeat" parameter. 1484 1485 On some motherboards the driver may fail to reset the chipset's 1486 NO_REBOOT flag which prevents the watchdog from rebooting the 1487 machine. If this is the case you will get a kernel message like 1488 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1489 1490 To compile this driver as a module, choose M here: the 1491 module will be called nv_tco. 1492 1493config RDC321X_WDT 1494 tristate "RDC R-321x SoC watchdog" 1495 depends on X86_RDC321X || COMPILE_TEST 1496 depends on PCI 1497 help 1498 This is the driver for the built in hardware watchdog 1499 in the RDC R-321x SoC. 1500 1501 To compile this driver as a module, choose M here: the 1502 module will be called rdc321x_wdt. 1503 1504config 60XX_WDT 1505 tristate "SBC-60XX Watchdog Timer" 1506 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1507 help 1508 This driver can be used with the watchdog timer found on some 1509 single board computers, namely the 6010 PII based computer. 1510 It may well work with other cards. It reads port 0x443 to enable 1511 and re-set the watchdog timer, and reads port 0x45 to disable 1512 the watchdog. If you have a card that behave in similar ways, 1513 you can probably make this driver work with your card as well. 1514 1515 You can compile this driver directly into the kernel, or use 1516 it as a module. The module will be called sbc60xxwdt. 1517 1518config SBC8360_WDT 1519 tristate "SBC8360 Watchdog Timer" 1520 depends on X86_32 1521 help 1522 1523 This is the driver for the hardware watchdog on the SBC8360 Single 1524 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1525 1526 To compile this driver as a module, choose M here: the 1527 module will be called sbc8360. 1528 1529 Most people will say N. 1530 1531config SBC7240_WDT 1532 tristate "SBC Nano 7240 Watchdog Timer" 1533 depends on X86_32 && !UML 1534 help 1535 This is the driver for the hardware watchdog found on the IEI 1536 single board computers EPIC Nano 7240 (and likely others). This 1537 watchdog simply watches your kernel to make sure it doesn't freeze, 1538 and if it does, it reboots your computer after a certain amount of 1539 time. 1540 1541 To compile this driver as a module, choose M here: the 1542 module will be called sbc7240_wdt. 1543 1544config CPU5_WDT 1545 tristate "SMA CPU5 Watchdog" 1546 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1547 help 1548 TBD. 1549 To compile this driver as a module, choose M here: the 1550 module will be called cpu5wdt. 1551 1552config SMSC_SCH311X_WDT 1553 tristate "SMSC SCH311X Watchdog Timer" 1554 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1555 help 1556 This is the driver for the hardware watchdog timer on the 1557 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1558 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1559 serial ports). 1560 1561 To compile this driver as a module, choose M here: the 1562 module will be called sch311x_wdt. 1563 1564config SMSC37B787_WDT 1565 tristate "Winbond SMsC37B787 Watchdog Timer" 1566 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1567 help 1568 This is the driver for the hardware watchdog component on the 1569 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1570 from Vision Systems and maybe others. 1571 1572 This watchdog simply watches your kernel to make sure it doesn't 1573 freeze, and if it does, it reboots your computer after a certain 1574 amount of time. 1575 1576 Usually a userspace daemon will notify the kernel WDT driver that 1577 userspace is still alive, at regular intervals. 1578 1579 To compile this driver as a module, choose M here: the 1580 module will be called smsc37b787_wdt. 1581 1582 Most people will say N. 1583 1584config TQMX86_WDT 1585 tristate "TQ-Systems TQMX86 Watchdog Timer" 1586 depends on X86 || COMPILE_TEST 1587 select WATCHDOG_CORE 1588 help 1589 This is the driver for the hardware watchdog timer in the TQMX86 IO 1590 controller found on some of their ComExpress Modules. 1591 1592 To compile this driver as a module, choose M here; the module 1593 will be called tqmx86_wdt. 1594 1595 Most people will say N. 1596 1597config VIA_WDT 1598 tristate "VIA Watchdog Timer" 1599 depends on (X86 || COMPILE_TEST) && PCI 1600 select WATCHDOG_CORE 1601 help 1602 This is the driver for the hardware watchdog timer on VIA 1603 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1604 1605 To compile this driver as a module, choose M here; the module 1606 will be called via_wdt. 1607 1608 Most people will say N. 1609 1610config W83627HF_WDT 1611 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1612 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1613 select WATCHDOG_CORE 1614 help 1615 This is the driver for the hardware watchdog on the following 1616 Super I/O chips. 1617 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1618 W83637HF 1619 W83667HG/HG-B 1620 W83687THF 1621 W83697HF 1622 W83697UG 1623 NCT6775 1624 NCT6776 1625 NCT6779 1626 NCT6791 1627 NCT6792 1628 NCT6102D/04D/06D 1629 NCT6116D 1630 1631 This watchdog simply watches your kernel to make sure it doesn't 1632 freeze, and if it does, it reboots your computer after a certain 1633 amount of time. 1634 1635 To compile this driver as a module, choose M here: the 1636 module will be called w83627hf_wdt. 1637 1638 Most people will say N. 1639 1640config W83877F_WDT 1641 tristate "W83877F (EMACS) Watchdog Timer" 1642 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1643 help 1644 This is the driver for the hardware watchdog on the W83877F chipset 1645 as used in EMACS PC-104 motherboards (and likely others). This 1646 watchdog simply watches your kernel to make sure it doesn't freeze, 1647 and if it does, it reboots your computer after a certain amount of 1648 time. 1649 1650 To compile this driver as a module, choose M here: the 1651 module will be called w83877f_wdt. 1652 1653 Most people will say N. 1654 1655config W83977F_WDT 1656 tristate "W83977F (PCM-5335) Watchdog Timer" 1657 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1658 help 1659 This is the driver for the hardware watchdog on the W83977F I/O chip 1660 as used in AAEON's PCM-5335 SBC (and likely others). This 1661 watchdog simply watches your kernel to make sure it doesn't freeze, 1662 and if it does, it reboots your computer after a certain amount of 1663 time. 1664 1665 To compile this driver as a module, choose M here: the 1666 module will be called w83977f_wdt. 1667 1668config MACHZ_WDT 1669 tristate "ZF MachZ Watchdog" 1670 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1671 help 1672 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1673 N. This is the driver for the watchdog timer built-in on that 1674 processor using ZF-Logic interface. This watchdog simply watches 1675 your kernel to make sure it doesn't freeze, and if it does, it 1676 reboots your computer after a certain amount of time. 1677 1678 To compile this driver as a module, choose M here: the 1679 module will be called machzwd. 1680 1681config SBC_EPX_C3_WATCHDOG 1682 tristate "Winsystems SBC EPX-C3 watchdog" 1683 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1684 help 1685 This is the driver for the built-in watchdog timer on the EPX-C3 1686 Single-board computer made by Winsystems, Inc. 1687 1688 *Note*: This hardware watchdog is not probeable and thus there 1689 is no way to know if writing to its IO address will corrupt 1690 your system or have any real effect. The only way to be sure 1691 that this driver does what you want is to make sure you 1692 are running it on an EPX-C3 from Winsystems with the watchdog 1693 timer at IO address 0x1ee and 0x1ef. It will write to both those 1694 IO ports. Basically, the assumption is made that if you compile 1695 this driver into your kernel and/or load it as a module, that you 1696 know what you are doing and that you are in fact running on an 1697 EPX-C3 board! 1698 1699 To compile this driver as a module, choose M here: the 1700 module will be called sbc_epx_c3. 1701 1702config INTEL_MEI_WDT 1703 tristate "Intel MEI iAMT Watchdog" 1704 depends on INTEL_MEI && X86 1705 select WATCHDOG_CORE 1706 help 1707 A device driver for the Intel MEI iAMT watchdog. 1708 1709 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1710 Whenever the OS hangs or crashes, iAMT will send an event 1711 to any subscriber to this event. The watchdog doesn't reset the 1712 the platform. 1713 1714 To compile this driver as a module, choose M here: 1715 the module will be called mei_wdt. 1716 1717config NI903X_WDT 1718 tristate "NI 903x/913x Watchdog" 1719 depends on X86 && ACPI 1720 select WATCHDOG_CORE 1721 help 1722 This is the driver for the watchdog timer on the National Instruments 1723 903x/913x real-time controllers. 1724 1725 To compile this driver as a module, choose M here: the module will be 1726 called ni903x_wdt. 1727 1728config NIC7018_WDT 1729 tristate "NIC7018 Watchdog" 1730 depends on X86 && ACPI 1731 select WATCHDOG_CORE 1732 help 1733 Support for National Instruments NIC7018 Watchdog. 1734 1735 To compile this driver as a module, choose M here: the module will be 1736 called nic7018_wdt. 1737 1738config SIEMENS_SIMATIC_IPC_WDT 1739 tristate "Siemens Simatic IPC Watchdog" 1740 depends on SIEMENS_SIMATIC_IPC && PCI 1741 default y 1742 select WATCHDOG_CORE 1743 select P2SB if X86 1744 help 1745 This driver adds support for several watchdogs found in Industrial 1746 PCs from Siemens. 1747 1748 To compile this driver as a module, choose M here: the module will be 1749 called simatic-ipc-wdt. 1750 1751# M68K Architecture 1752 1753config M54xx_WATCHDOG 1754 tristate "MCF54xx watchdog support" 1755 depends on M548x 1756 help 1757 To compile this driver as a module, choose M here: the 1758 module will be called m54xx_wdt. 1759 1760# MicroBlaze Architecture 1761 1762# MIPS Architecture 1763 1764config ATH79_WDT 1765 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1766 depends on ATH79 || (ARM && COMPILE_TEST) 1767 help 1768 Hardware driver for the built-in watchdog timer on the Atheros 1769 AR71XX/AR724X/AR913X SoCs. 1770 1771config BCM47XX_WDT 1772 tristate "Broadcom BCM47xx Watchdog Timer" 1773 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1774 select WATCHDOG_CORE 1775 help 1776 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1777 1778config RC32434_WDT 1779 tristate "IDT RC32434 SoC Watchdog Timer" 1780 depends on MIKROTIK_RB532 1781 help 1782 Hardware driver for the IDT RC32434 SoC built-in 1783 watchdog timer. 1784 1785 To compile this driver as a module, choose M here: the 1786 module will be called rc32434_wdt. 1787 1788config INDYDOG 1789 tristate "Indy/I2 Hardware Watchdog" 1790 depends on SGI_HAS_INDYDOG 1791 help 1792 Hardware driver for the Indy's/I2's watchdog. This is a 1793 watchdog timer that will reboot the machine after a 60 second 1794 timer expired and no process has written to /dev/watchdog during 1795 that time. 1796 1797config JZ4740_WDT 1798 tristate "Ingenic jz4740 SoC hardware watchdog" 1799 depends on MIPS || COMPILE_TEST 1800 depends on COMMON_CLK 1801 select WATCHDOG_CORE 1802 select MFD_SYSCON 1803 help 1804 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1805 1806config WDT_MTX1 1807 tristate "MTX-1 Hardware Watchdog" 1808 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1809 help 1810 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1811 will reboot the machine after a 100 seconds timer expired. 1812 1813config SIBYTE_WDOG 1814 tristate "Sibyte SoC hardware watchdog" 1815 depends on CPU_SB1 1816 help 1817 Watchdog driver for the built in watchdog hardware in Sibyte 1818 SoC processors. There are apparently two watchdog timers 1819 on such processors; this driver supports only the first one, 1820 because currently Linux only supports exporting one watchdog 1821 to userspace. 1822 1823 To compile this driver as a loadable module, choose M here. 1824 The module will be called sb_wdog. 1825 1826config TXX9_WDT 1827 tristate "Toshiba TXx9 Watchdog Timer" 1828 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1829 select WATCHDOG_CORE 1830 help 1831 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1832 1833config OCTEON_WDT 1834 tristate "Cavium OCTEON SOC family Watchdog Timer" 1835 depends on CAVIUM_OCTEON_SOC 1836 default y 1837 select WATCHDOG_CORE 1838 select EXPORT_UASM if OCTEON_WDT = m 1839 help 1840 Hardware driver for OCTEON's on chip watchdog timer. 1841 Enables the watchdog for all cores running Linux. It 1842 installs a NMI handler and pokes the watchdog based on an 1843 interrupt. On first expiration of the watchdog, the 1844 interrupt handler pokes it. The second expiration causes an 1845 NMI that prints a message. The third expiration causes a 1846 global soft reset. 1847 1848 When userspace has /dev/watchdog open, no poking is done 1849 from the first interrupt, it is then only poked when the 1850 device is written. 1851 1852config MARVELL_GTI_WDT 1853 tristate "Marvell GTI Watchdog driver" 1854 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1855 default y 1856 select WATCHDOG_CORE 1857 help 1858 Marvell GTI hardware supports watchdog timer. First timeout 1859 works as watchdog pretimeout and installed interrupt handler 1860 will be called on first timeout. Hardware can generate interrupt 1861 to SCP on second timeout but it is not enabled, so second 1862 timeout is ignored. If device poke does not happen then system 1863 will reboot on third timeout. 1864 1865config BCM2835_WDT 1866 tristate "Broadcom BCM2835 hardware watchdog" 1867 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1868 select WATCHDOG_CORE 1869 help 1870 Watchdog driver for the built in watchdog hardware in Broadcom 1871 BCM2835 SoC. 1872 1873 To compile this driver as a loadable module, choose M here. 1874 The module will be called bcm2835_wdt. 1875 1876config BCM_KONA_WDT 1877 tristate "BCM Kona Watchdog" 1878 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1879 select WATCHDOG_CORE 1880 help 1881 Support for the watchdog timer on the following Broadcom BCM281xx 1882 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1883 BCM28155 variants. 1884 1885 Say 'Y' or 'M' here to enable the driver. The module will be called 1886 bcm_kona_wdt. 1887 1888config BCM_KONA_WDT_DEBUG 1889 bool "DEBUGFS support for BCM Kona Watchdog" 1890 depends on BCM_KONA_WDT || COMPILE_TEST 1891 help 1892 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1893 access to the driver's internal data structures as well as watchdog 1894 timer hardware registres. 1895 1896 If in doubt, say 'N'. 1897 1898config BCM7038_WDT 1899 tristate "BCM63xx/BCM7038 Watchdog" 1900 select WATCHDOG_CORE 1901 depends on HAS_IOMEM 1902 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1903 help 1904 Watchdog driver for the built-in hardware in Broadcom 7038 and 1905 later SoCs used in set-top boxes. BCM7038 was made public 1906 during the 2004 CES, and since then, many Broadcom chips use this 1907 watchdog block, including some cable modem chips and DSL (63xx) 1908 chips. 1909 1910config IMGPDC_WDT 1911 tristate "Imagination Technologies PDC Watchdog Timer" 1912 depends on HAS_IOMEM 1913 depends on MIPS || COMPILE_TEST 1914 select WATCHDOG_CORE 1915 help 1916 Driver for Imagination Technologies PowerDown Controller 1917 Watchdog Timer. 1918 1919 To compile this driver as a loadable module, choose M here. 1920 The module will be called imgpdc_wdt. 1921 1922config LANTIQ_WDT 1923 tristate "Lantiq SoC watchdog" 1924 depends on LANTIQ 1925 select WATCHDOG_CORE 1926 help 1927 Hardware driver for the Lantiq SoC Watchdog Timer. 1928 1929config LOONGSON1_WDT 1930 tristate "Loongson1 SoC hardware watchdog" 1931 depends on MACH_LOONGSON32 || COMPILE_TEST 1932 select WATCHDOG_CORE 1933 help 1934 Hardware driver for the Loongson1 SoC Watchdog Timer. 1935 1936config RALINK_WDT 1937 tristate "Ralink SoC watchdog" 1938 select WATCHDOG_CORE 1939 depends on RALINK 1940 help 1941 Hardware driver for the Ralink SoC Watchdog Timer. 1942 1943config GXP_WATCHDOG 1944 tristate "HPE GXP watchdog support" 1945 depends on ARCH_HPE_GXP || COMPILE_TEST 1946 select WATCHDOG_CORE 1947 help 1948 Say Y here to include support for the watchdog timer 1949 in HPE GXP SoCs. 1950 1951 To compile this driver as a module, choose M here. 1952 The module will be called gxp-wdt. 1953 1954config MT7621_WDT 1955 tristate "Mediatek SoC watchdog" 1956 select WATCHDOG_CORE 1957 select REGMAP_MMIO 1958 select MFD_SYSCON 1959 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1960 help 1961 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1962 1963config PIC32_WDT 1964 tristate "Microchip PIC32 hardware watchdog" 1965 select WATCHDOG_CORE 1966 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1967 help 1968 Watchdog driver for the built in watchdog hardware in a PIC32. 1969 1970 Configuration bits must be set appropriately for the watchdog to be 1971 controlled by this driver. 1972 1973 To compile this driver as a loadable module, choose M here. 1974 The module will be called pic32-wdt. 1975 1976config PIC32_DMT 1977 tristate "Microchip PIC32 Deadman Timer" 1978 select WATCHDOG_CORE 1979 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1980 help 1981 Watchdog driver for PIC32 instruction fetch counting timer. This 1982 specific timer is typically be used in mission critical and safety 1983 critical applications, where any single failure of the software 1984 functionality and sequencing must be detected. 1985 1986 To compile this driver as a loadable module, choose M here. 1987 The module will be called pic32-dmt. 1988 1989# PARISC Architecture 1990 1991# POWERPC Architecture 1992 1993config GEF_WDT 1994 tristate "GE Watchdog Timer" 1995 depends on GE_FPGA 1996 help 1997 Watchdog timer found in a number of GE single board computers. 1998 1999config MPC5200_WDT 2000 bool "MPC52xx Watchdog Timer" 2001 depends on PPC_MPC52xx || COMPILE_TEST 2002 help 2003 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 2004 2005config 8xxx_WDT 2006 tristate "MPC8xxx Platform Watchdog Timer" 2007 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2008 select WATCHDOG_CORE 2009 help 2010 This driver is for a SoC level watchdog that exists on some 2011 Freescale PowerPC processors. So far this driver supports: 2012 - MPC8xx watchdogs 2013 - MPC83xx watchdogs 2014 - MPC86xx watchdogs 2015 2016 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2017 2018config PIKA_WDT 2019 tristate "PIKA FPGA Watchdog" 2020 depends on WARP || (PPC64 && COMPILE_TEST) 2021 default y 2022 help 2023 This enables the watchdog in the PIKA FPGA. Currently used on 2024 the Warp platform. 2025 2026config BOOKE_WDT 2027 tristate "PowerPC Book-E Watchdog Timer" 2028 depends on BOOKE || 4xx 2029 select WATCHDOG_CORE 2030 help 2031 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2032 MPC85xx SOCs and the IBM PowerPC 440. 2033 2034 Please see Documentation/watchdog/watchdog-api.rst for 2035 more information. 2036 2037config BOOKE_WDT_DEFAULT_TIMEOUT 2038 int "PowerPC Book-E Watchdog Timer Default Timeout" 2039 depends on BOOKE_WDT 2040 default 38 if PPC_E500 2041 range 0 63 if PPC_E500 2042 default 3 if !PPC_E500 2043 range 0 3 if !PPC_E500 2044 help 2045 Select the default watchdog timer period to be used by the PowerPC 2046 Book-E watchdog driver. A watchdog "event" occurs when the bit 2047 position represented by this number transitions from zero to one. 2048 2049 For Freescale Book-E processors, this is a number between 0 and 63. 2050 For other Book-E processors, this is a number between 0 and 3. 2051 2052 The value can be overridden by the wdt_period command-line parameter. 2053 2054config MEN_A21_WDT 2055 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2056 select WATCHDOG_CORE 2057 depends on GPIOLIB || COMPILE_TEST 2058 help 2059 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2060 2061 The driver can also be built as a module. If so, the module will be 2062 called mena21_wdt. 2063 2064 If unsure select N here. 2065 2066# PPC64 Architecture 2067 2068config PSERIES_WDT 2069 tristate "POWER Architecture Platform Watchdog Timer" 2070 depends on PPC_PSERIES 2071 select WATCHDOG_CORE 2072 help 2073 Driver for virtual watchdog timers provided by PAPR 2074 hypervisors (e.g. PowerVM, KVM). 2075 2076config WATCHDOG_RTAS 2077 tristate "RTAS watchdog" 2078 depends on PPC_RTAS 2079 help 2080 This driver adds watchdog support for the RTAS watchdog. 2081 2082 To compile this driver as a module, choose M here. The module 2083 will be called wdrtas. 2084 2085# RISC-V Architecture 2086 2087config STARFIVE_WATCHDOG 2088 tristate "StarFive Watchdog support" 2089 depends on ARCH_STARFIVE || COMPILE_TEST 2090 select WATCHDOG_CORE 2091 default ARCH_STARFIVE 2092 help 2093 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2094 SoC. This driver can also be built as a module if choose M. 2095 2096# S390 Architecture 2097 2098config DIAG288_WATCHDOG 2099 tristate "System z diag288 Watchdog" 2100 depends on S390 2101 select WATCHDOG_CORE 2102 help 2103 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2104 provide a virtual watchdog timer to their guest that cause a 2105 user define Control Program command to be executed after a 2106 timeout. 2107 LPAR provides a very similar interface. This driver handles 2108 both. 2109 2110 To compile this driver as a module, choose M here. The module 2111 will be called diag288_wdt. 2112 2113# SUPERH (sh + sh64) Architecture 2114 2115config SH_WDT 2116 tristate "SuperH Watchdog" 2117 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2118 select WATCHDOG_CORE 2119 help 2120 This driver adds watchdog support for the integrated watchdog in the 2121 SuperH processors. If you have one of these processors and wish 2122 to have watchdog support enabled, say Y, otherwise say N. 2123 2124 As a side note, saying Y here will automatically boost HZ to 1000 2125 so that the timer has a chance to clear the overflow counter. On 2126 slower systems (such as the SH-2 and SH-3) this will likely yield 2127 some performance issues. As such, the WDT should be avoided here 2128 unless it is absolutely necessary. 2129 2130 To compile this driver as a module, choose M here: the 2131 module will be called shwdt. 2132 2133# SPARC Architecture 2134 2135# SPARC64 Architecture 2136 2137config WATCHDOG_CP1XXX 2138 tristate "CP1XXX Hardware Watchdog support" 2139 depends on SPARC64 && PCI 2140 help 2141 This is the driver for the hardware watchdog timers present on 2142 Sun Microsystems CompactPCI models CP1400 and CP1500. 2143 2144 To compile this driver as a module, choose M here: the 2145 module will be called cpwatchdog. 2146 2147 If you do not have a CompactPCI model CP1400 or CP1500, or 2148 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2149 you should say N to this option. 2150 2151config WATCHDOG_RIO 2152 tristate "RIO Hardware Watchdog support" 2153 depends on SPARC64 && PCI 2154 help 2155 Say Y here to support the hardware watchdog capability on Sun RIO 2156 machines. The watchdog timeout period is normally one minute but 2157 can be changed with a boot-time parameter. 2158 2159config WATCHDOG_SUN4V 2160 tristate "Sun4v Watchdog support" 2161 select WATCHDOG_CORE 2162 depends on SPARC64 2163 help 2164 Say Y here to support the hypervisor watchdog capability embedded 2165 in the SPARC sun4v architecture. 2166 2167 To compile this driver as a module, choose M here. The module will 2168 be called sun4v_wdt. 2169 2170# XTENSA Architecture 2171 2172# Xen Architecture 2173 2174config XEN_WDT 2175 tristate "Xen Watchdog support" 2176 depends on XEN 2177 select WATCHDOG_CORE 2178 help 2179 Say Y here to support the hypervisor watchdog capability provided 2180 by Xen 4.0 and newer. The watchdog timeout period is normally one 2181 minute but can be changed with a boot-time parameter. 2182 2183config UML_WATCHDOG 2184 tristate "UML watchdog" 2185 depends on UML || COMPILE_TEST 2186 2187# 2188# ISA-based Watchdog Cards 2189# 2190 2191comment "ISA-based Watchdog Cards" 2192 depends on ISA 2193 2194config PCWATCHDOG 2195 tristate "Berkshire Products ISA-PC Watchdog" 2196 depends on ISA 2197 help 2198 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2199 This card simply watches your kernel to make sure it doesn't freeze, 2200 and if it does, it reboots your computer after a certain amount of 2201 time. This driver is like the WDT501 driver but for different 2202 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2203 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2204 2205 To compile this driver as a module, choose M here: the 2206 module will be called pcwd. 2207 2208 Most people will say N. 2209 2210config MIXCOMWD 2211 tristate "Mixcom Watchdog" 2212 depends on ISA 2213 help 2214 This is a driver for the Mixcom hardware watchdog cards. This 2215 watchdog simply watches your kernel to make sure it doesn't freeze, 2216 and if it does, it reboots your computer after a certain amount of 2217 time. 2218 2219 To compile this driver as a module, choose M here: the 2220 module will be called mixcomwd. 2221 2222 Most people will say N. 2223 2224config WDT 2225 tristate "WDT Watchdog timer" 2226 depends on ISA 2227 help 2228 If you have a WDT500P or WDT501P watchdog board, say Y here, 2229 otherwise N. It is not possible to probe for this board, which means 2230 that you have to inform the kernel about the IO port and IRQ that 2231 is needed (you can do this via the io and irq parameters) 2232 2233 To compile this driver as a module, choose M here: the 2234 module will be called wdt. 2235 2236# 2237# PCI-based Watchdog Cards 2238# 2239 2240comment "PCI-based Watchdog Cards" 2241 depends on PCI 2242 2243config PCIPCWATCHDOG 2244 tristate "Berkshire Products PCI-PC Watchdog" 2245 depends on PCI && HAS_IOPORT 2246 help 2247 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2248 This card simply watches your kernel to make sure it doesn't freeze, 2249 and if it does, it reboots your computer after a certain amount of 2250 time. The card can also monitor the internal temperature of the PC. 2251 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2252 2253 To compile this driver as a module, choose M here: the 2254 module will be called pcwd_pci. 2255 2256 Most people will say N. 2257 2258config WDTPCI 2259 tristate "PCI-WDT500/501 Watchdog timer" 2260 depends on PCI && HAS_IOPORT 2261 help 2262 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2263 2264 If you have a PCI-WDT501 watchdog board then you can enable the 2265 temperature sensor by setting the type parameter to 501. 2266 2267 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2268 can do this via the tachometer parameter. Only do this if you have a 2269 fan tachometer actually set up. 2270 2271 To compile this driver as a module, choose M here: the 2272 module will be called wdt_pci. 2273 2274# 2275# USB-based Watchdog Cards 2276# 2277 2278comment "USB-based Watchdog Cards" 2279 depends on USB 2280 2281config USBPCWATCHDOG 2282 tristate "Berkshire Products USB-PC Watchdog" 2283 depends on USB 2284 help 2285 This is the driver for the Berkshire Products USB-PC Watchdog card. 2286 This card simply watches your kernel to make sure it doesn't freeze, 2287 and if it does, it reboots your computer after a certain amount of 2288 time. The card can also monitor the internal temperature of the PC. 2289 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2290 2291 To compile this driver as a module, choose M here: the 2292 module will be called pcwd_usb. 2293 2294 Most people will say N. 2295 2296config KEEMBAY_WATCHDOG 2297 tristate "Intel Keem Bay SoC non-secure watchdog" 2298 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2299 select WATCHDOG_CORE 2300 help 2301 This option enable support for an In-secure watchdog timer driver for 2302 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2303 count unit. An interrupt will be triggered, when the count crosses 2304 the threshold configured in the register. 2305 2306 To compile this driver as a module, choose M here: the 2307 module will be called keembay_wdt. 2308 2309endif # WATCHDOG 2310