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/V2H(P) WDT Watchdog" 967 depends on ARCH_R9A09G057 || 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/V2H(P) SoCs. These watchdogs can be used to reset a system. 973 974config ASPEED_WATCHDOG 975 tristate "Aspeed BMC watchdog support" 976 depends on ARCH_ASPEED || COMPILE_TEST 977 select WATCHDOG_CORE 978 help 979 Say Y here to include support for the watchdog timer 980 in Aspeed BMC SoCs. 981 982 This driver is required to reboot the SoC. 983 984 To compile this driver as a module, choose M here: the 985 module will be called aspeed_wdt. 986 987config STM32_WATCHDOG 988 tristate "STM32 Independent WatchDoG (IWDG) support" 989 depends on ARCH_STM32 || COMPILE_TEST 990 select WATCHDOG_CORE 991 default y 992 help 993 Say Y here to include support for the watchdog timer 994 in stm32 SoCs. 995 996 To compile this driver as a module, choose M here: the 997 module will be called stm32_iwdg. 998 999config STPMIC1_WATCHDOG 1000 tristate "STPMIC1 PMIC watchdog support" 1001 depends on MFD_STPMIC1 1002 select WATCHDOG_CORE 1003 help 1004 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 1005 If the watchdog timer expires, stpmic1 will shut down all its power 1006 supplies. 1007 1008 To compile this driver as a module, choose M here: the 1009 module will be called spmic1_wdt. 1010 1011config UNIPHIER_WATCHDOG 1012 tristate "UniPhier watchdog support" 1013 depends on ARCH_UNIPHIER || COMPILE_TEST 1014 depends on OF && MFD_SYSCON 1015 select WATCHDOG_CORE 1016 help 1017 Say Y here to include support watchdog timer embedded 1018 into the UniPhier system. 1019 1020 To compile this driver as a module, choose M here: the 1021 module will be called uniphier_wdt. 1022 1023config RTD119X_WATCHDOG 1024 bool "Realtek RTD119x/RTD129x watchdog support" 1025 depends on ARCH_REALTEK || COMPILE_TEST 1026 depends on OF 1027 select WATCHDOG_CORE 1028 default ARCH_REALTEK 1029 help 1030 Say Y here to include support for the watchdog timer in 1031 Realtek RTD1295 SoCs. 1032 1033config REALTEK_OTTO_WDT 1034 tristate "Realtek Otto MIPS watchdog support" 1035 depends on MACH_REALTEK_RTL || COMPILE_TEST 1036 depends on COMMON_CLK 1037 select WATCHDOG_CORE 1038 default MACH_REALTEK_RTL 1039 help 1040 Say Y here to include support for the watchdog timer on Realtek 1041 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1042 notifications and system reset on timeout. 1043 1044 When built as a module this will be called realtek_otto_wdt. 1045 1046config SPRD_WATCHDOG 1047 tristate "Spreadtrum watchdog support" 1048 depends on ARCH_SPRD || COMPILE_TEST 1049 select WATCHDOG_CORE 1050 help 1051 Say Y here to include watchdog timer supported 1052 by Spreadtrum system. 1053 1054config PM8916_WATCHDOG 1055 tristate "QCOM PM8916 pmic watchdog" 1056 depends on OF && MFD_SPMI_PMIC 1057 select WATCHDOG_CORE 1058 help 1059 Say Y here to include support watchdog timer embedded into the 1060 pm8916 module. 1061 1062config VISCONTI_WATCHDOG 1063 tristate "Toshiba Visconti series watchdog support" 1064 depends on ARCH_VISCONTI || COMPILE_TEST 1065 select WATCHDOG_CORE 1066 help 1067 Say Y here to include support for the watchdog timer in Toshiba 1068 Visconti SoCs. 1069 1070config MSC313E_WATCHDOG 1071 tristate "MStar MSC313e watchdog" 1072 depends on ARCH_MSTARV7 || COMPILE_TEST 1073 select WATCHDOG_CORE 1074 help 1075 Say Y here to include support for the Watchdog timer embedded 1076 into MStar MSC313e chips. This will reboot your system when the 1077 timeout is reached. 1078 1079 To compile this driver as a module, choose M here: the 1080 module will be called msc313e_wdt. 1081 1082config APPLE_WATCHDOG 1083 tristate "Apple SoC watchdog" 1084 depends on ARCH_APPLE || COMPILE_TEST 1085 select WATCHDOG_CORE 1086 help 1087 Say Y here to include support for the Watchdog found in Apple 1088 SoCs such as the M1. Next to the common watchdog features this 1089 driver is also required in order to reboot these SoCs. 1090 1091 To compile this driver as a module, choose M here: the 1092 module will be called apple_wdt. 1093 1094config SUNPLUS_WATCHDOG 1095 tristate "Sunplus watchdog support" 1096 depends on ARCH_SUNPLUS || COMPILE_TEST 1097 select WATCHDOG_CORE 1098 help 1099 Say Y here to include support for the watchdog timer 1100 in Sunplus SoCs. 1101 1102 To compile this driver as a module, choose M here: the 1103 module will be called sunplus_wdt. 1104 1105# X86 (i386 + ia64 + x86_64) Architecture 1106 1107config ACQUIRE_WDT 1108 tristate "Acquire SBC Watchdog Timer" 1109 depends on X86 1110 help 1111 This is the driver for the hardware watchdog on Single Board 1112 Computers produced by Acquire Inc (and others). This watchdog 1113 simply watches your kernel to make sure it doesn't freeze, and if 1114 it does, it reboots your computer after a certain amount of time. 1115 1116 To compile this driver as a module, choose M here: the 1117 module will be called acquirewdt. 1118 1119 Most people will say N. 1120 1121config ADVANTECH_WDT 1122 tristate "Advantech SBC Watchdog Timer" 1123 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1124 help 1125 If you are configuring a Linux kernel for the Advantech single-board 1126 computer, say `Y' here to support its built-in watchdog timer 1127 feature. More information can be found at 1128 <https://www.advantech.com.tw/products/> 1129 1130config ADVANTECH_EC_WDT 1131 tristate "Advantech Embedded Controller Watchdog Timer" 1132 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1133 select ISA_BUS_API 1134 select WATCHDOG_CORE 1135 help 1136 This driver supports Advantech products with ITE based Embedded Controller. 1137 It does not support Advantech products with other ECs or without EC. 1138 1139config ALIM1535_WDT 1140 tristate "ALi M1535 PMU Watchdog Timer" 1141 depends on (X86 || COMPILE_TEST) && PCI 1142 help 1143 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1144 1145 To compile this driver as a module, choose M here: the 1146 module will be called alim1535_wdt. 1147 1148 Most people will say N. 1149 1150config ALIM7101_WDT 1151 tristate "ALi M7101 PMU Computer Watchdog" 1152 depends on PCI 1153 help 1154 This is the driver for the hardware watchdog on the ALi M7101 PMU 1155 as used in the x86 Cobalt servers and also found in some 1156 SPARC Netra servers too. 1157 1158 To compile this driver as a module, choose M here: the 1159 module will be called alim7101_wdt. 1160 1161 Most people will say N. 1162 1163config EBC_C384_WDT 1164 tristate "WinSystems EBC-C384 Watchdog Timer" 1165 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1166 select ISA_BUS_API 1167 select WATCHDOG_CORE 1168 help 1169 Enables watchdog timer support for the watchdog timer on the 1170 WinSystems EBC-C384 motherboard. The timeout may be configured via 1171 the timeout module parameter. 1172 1173config EXAR_WDT 1174 tristate "Exar Watchdog Timer" 1175 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1176 select WATCHDOG_CORE 1177 help 1178 Enables watchdog timer support for the watchdog timer present 1179 in some Exar/MaxLinear UART chips like the XR28V38x. 1180 1181 To compile this driver as a module, choose M here: the 1182 module will be called exar_wdt. 1183 1184config F71808E_WDT 1185 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1186 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1187 select WATCHDOG_CORE 1188 help 1189 This is the driver for the hardware watchdog on the Fintek F71808E, 1190 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1191 F81866 Super I/O controllers. 1192 1193 You can compile this driver directly into the kernel, or use 1194 it as a module. The module will be called f71808e_wdt. 1195 1196config SP5100_TCO 1197 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1198 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1199 select WATCHDOG_CORE 1200 help 1201 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1202 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1203 the machine after its expiration. The expiration time can be 1204 configured with the "heartbeat" parameter. 1205 1206 To compile this driver as a module, choose M here: the 1207 module will be called sp5100_tco. 1208 1209config GEODE_WDT 1210 tristate "AMD Geode CS5535/CS5536 Watchdog" 1211 depends on CS5535_MFGPT 1212 help 1213 This driver enables a watchdog capability built into the 1214 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1215 processors. This watchdog watches your kernel to make sure 1216 it doesn't freeze, and if it does, it reboots your computer after 1217 a certain amount of time. 1218 1219 You can compile this driver directly into the kernel, or use 1220 it as a module. The module will be called geodewdt. 1221 1222config SC520_WDT 1223 tristate "AMD Elan SC520 processor Watchdog" 1224 depends on MELAN || COMPILE_TEST 1225 help 1226 This is the driver for the hardware watchdog built in to the 1227 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1228 This watchdog simply watches your kernel to make sure it doesn't 1229 freeze, and if it does, it reboots your computer after a certain 1230 amount of time. 1231 1232 You can compile this driver directly into the kernel, or use 1233 it as a module. The module will be called sc520_wdt. 1234 1235config SBC_FITPC2_WATCHDOG 1236 tristate "Compulab SBC-FITPC2 watchdog" 1237 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1238 help 1239 This is the driver for the built-in watchdog timer on the fit-PC2, 1240 fit-PC2i, CM-iAM single-board computers made by Compulab. 1241 1242 It's possible to enable the watchdog timer either from BIOS (F2) or 1243 from booted Linux. 1244 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1245 operational range. 1246 1247 Entering BIOS setup temporarily disables watchdog operation regardless 1248 of current state, so system will not be restarted while user is in 1249 BIOS setup. 1250 1251 Once the watchdog is enabled the system will be restarted every 1252 "Watchdog Timer Value" period, so to prevent it user can restart or 1253 disable the watchdog. 1254 1255 To compile this driver as a module, choose M here: the 1256 module will be called sbc_fitpc2_wdt. 1257 1258 Most people will say N. 1259 1260config EUROTECH_WDT 1261 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1262 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1263 help 1264 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1265 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1266 information are at <http://www.eurotech.it/>. 1267 1268config IB700_WDT 1269 tristate "IB700 SBC Watchdog Timer" 1270 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1271 help 1272 This is the driver for the hardware watchdog on the IB700 Single 1273 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1274 watchdog simply watches your kernel to make sure it doesn't freeze, 1275 and if it does, it reboots your computer after a certain amount of time. 1276 1277 This driver is like the WDT501 driver but for slightly different 1278 hardware. 1279 1280 To compile this driver as a module, choose M here: the 1281 module will be called ib700wdt. 1282 1283 Most people will say N. 1284 1285config IBMASR 1286 tristate "IBM Automatic Server Restart" 1287 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1288 help 1289 This is the driver for the IBM Automatic Server Restart watchdog 1290 timer built-in into some eServer xSeries machines. 1291 1292 To compile this driver as a module, choose M here: the 1293 module will be called ibmasr. 1294 1295config WAFER_WDT 1296 tristate "ICP Single Board Computer Watchdog Timer" 1297 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1298 help 1299 This is a driver for the hardware watchdog on the ICP Single 1300 Board Computer. This driver is working on (at least) the following 1301 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1302 1303 To compile this driver as a module, choose M here: the 1304 module will be called wafer5823wdt. 1305 1306config I6300ESB_WDT 1307 tristate "Intel 6300ESB Timer/Watchdog" 1308 depends on PCI 1309 select WATCHDOG_CORE 1310 help 1311 Hardware driver for the watchdog timer built into the Intel 1312 6300ESB controller hub. 1313 1314 To compile this driver as a module, choose M here: the 1315 module will be called i6300esb. 1316 1317config IE6XX_WDT 1318 tristate "Intel Atom E6xx Watchdog" 1319 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1320 select WATCHDOG_CORE 1321 select MFD_CORE 1322 select LPC_SCH 1323 help 1324 Hardware driver for the watchdog timer built into the Intel 1325 Atom E6XX (TunnelCreek) processor. 1326 1327 To compile this driver as a module, choose M here: the 1328 module will be called ie6xx_wdt. 1329 1330config INTEL_MID_WATCHDOG 1331 tristate "Intel MID Watchdog Timer" 1332 depends on X86_INTEL_MID 1333 select WATCHDOG_CORE 1334 help 1335 Watchdog timer driver built into the Intel SCU for Intel MID 1336 Platforms. 1337 1338 This driver currently supports only the watchdog evolution 1339 implementation in SCU, available for Merrifield generation. 1340 1341 To compile this driver as a module, choose M here. 1342 1343config ITCO_WDT 1344 tristate "Intel TCO Timer/Watchdog" 1345 depends on X86 && PCI 1346 select WATCHDOG_CORE 1347 depends on I2C || I2C=n 1348 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1349 depends on HAS_IOPORT # for I2C_I801 1350 select LPC_ICH if !EXPERT 1351 select I2C_I801 if !EXPERT && I2C 1352 help 1353 Hardware driver for the intel TCO timer based watchdog devices. 1354 These drivers are included in the Intel 82801 I/O Controller 1355 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1356 controller hub. 1357 1358 The TCO (Total Cost of Ownership) timer is a watchdog timer 1359 that will reboot the machine after its second expiration. The 1360 expiration time can be configured with the "heartbeat" parameter. 1361 1362 On some motherboards the driver may fail to reset the chipset's 1363 NO_REBOOT flag which prevents the watchdog from rebooting the 1364 machine. If this is the case you will get a kernel message like 1365 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1366 1367 To compile this driver as a module, choose M here: the 1368 module will be called iTCO_wdt. 1369 1370config ITCO_VENDOR_SUPPORT 1371 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1372 depends on ITCO_WDT 1373 help 1374 Add vendor specific support to the intel TCO timer based watchdog 1375 devices. At this moment we only have additional support for some 1376 SuperMicro Inc. motherboards. 1377 1378config IT8712F_WDT 1379 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1380 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1381 help 1382 This is the driver for the built-in watchdog timer on the IT8712F 1383 Super I/0 chipset used on many motherboards. 1384 1385 If the driver does not work, then make sure that the game port in 1386 the BIOS is enabled. 1387 1388 To compile this driver as a module, choose M here: the 1389 module will be called it8712f_wdt. 1390 1391config IT87_WDT 1392 tristate "IT87 Watchdog Timer" 1393 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1394 select WATCHDOG_CORE 1395 help 1396 This is the driver for the hardware watchdog on the ITE IT8607, 1397 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1398 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1399 IT8783 Super I/O chips. 1400 1401 This watchdog simply watches your kernel to make sure it doesn't 1402 freeze, and if it does, it reboots your computer after a certain 1403 amount of time. 1404 1405 To compile this driver as a module, choose M here: the module will 1406 be called it87_wdt. 1407 1408config HP_WATCHDOG 1409 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1410 select WATCHDOG_CORE 1411 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1412 help 1413 A software monitoring watchdog and NMI handling driver. This driver 1414 will detect lockups and provide a stack trace. This is a driver that 1415 will only load on an HP ProLiant system with a minimum of iLO2 support. 1416 To compile this driver as a module, choose M here: the module will be 1417 called hpwdt. 1418 1419config HPWDT_NMI_DECODING 1420 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1421 depends on X86 && HP_WATCHDOG 1422 default y 1423 help 1424 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1425 "Generate NMI to System" virtual button. When an NMI is claimed 1426 by the driver, panic is called. 1427 1428config KEMPLD_WDT 1429 tristate "Kontron COM Watchdog Timer" 1430 depends on MFD_KEMPLD 1431 select WATCHDOG_CORE 1432 help 1433 Support for the PLD watchdog on some Kontron ETX and COMexpress 1434 (ETXexpress) modules 1435 1436 This driver can also be built as a module. If so, the module will be 1437 called kempld_wdt. 1438 1439config SC1200_WDT 1440 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1441 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1442 help 1443 This is a driver for National Semiconductor PC87307/PC97307 hardware 1444 watchdog cards as found on the SC1200. This watchdog is mainly used 1445 for power management purposes and can be used to power down the device 1446 during inactivity periods (includes interrupt activity monitoring). 1447 1448 To compile this driver as a module, choose M here: the 1449 module will be called sc1200wdt. 1450 1451 Most people will say N. 1452 1453config SCx200_WDT 1454 tristate "National Semiconductor SCx200 Watchdog" 1455 depends on SCx200 && PCI 1456 help 1457 Enable the built-in watchdog timer support on the National 1458 Semiconductor SCx200 processors. 1459 1460 If compiled as a module, it will be called scx200_wdt. 1461 1462config PC87413_WDT 1463 tristate "NS PC87413 watchdog" 1464 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1465 help 1466 This is the driver for the hardware watchdog on the PC87413 chipset 1467 This watchdog simply watches your kernel to make sure it doesn't 1468 freeze, and if it does, it reboots your computer after a certain 1469 amount of time. 1470 1471 To compile this driver as a module, choose M here: the 1472 module will be called pc87413_wdt. 1473 1474 Most people will say N. 1475 1476config NV_TCO 1477 tristate "nVidia TCO Timer/Watchdog" 1478 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1479 help 1480 Hardware driver for the TCO timer built into the nVidia Hub family 1481 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1482 watchdog timer that will reboot the machine after its second 1483 expiration. The expiration time can be configured with the 1484 "heartbeat" parameter. 1485 1486 On some motherboards the driver may fail to reset the chipset's 1487 NO_REBOOT flag which prevents the watchdog from rebooting the 1488 machine. If this is the case you will get a kernel message like 1489 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1490 1491 To compile this driver as a module, choose M here: the 1492 module will be called nv_tco. 1493 1494config RDC321X_WDT 1495 tristate "RDC R-321x SoC watchdog" 1496 depends on X86_RDC321X || COMPILE_TEST 1497 depends on PCI 1498 help 1499 This is the driver for the built in hardware watchdog 1500 in the RDC R-321x SoC. 1501 1502 To compile this driver as a module, choose M here: the 1503 module will be called rdc321x_wdt. 1504 1505config 60XX_WDT 1506 tristate "SBC-60XX Watchdog Timer" 1507 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1508 help 1509 This driver can be used with the watchdog timer found on some 1510 single board computers, namely the 6010 PII based computer. 1511 It may well work with other cards. It reads port 0x443 to enable 1512 and re-set the watchdog timer, and reads port 0x45 to disable 1513 the watchdog. If you have a card that behave in similar ways, 1514 you can probably make this driver work with your card as well. 1515 1516 You can compile this driver directly into the kernel, or use 1517 it as a module. The module will be called sbc60xxwdt. 1518 1519config SBC8360_WDT 1520 tristate "SBC8360 Watchdog Timer" 1521 depends on X86_32 1522 help 1523 1524 This is the driver for the hardware watchdog on the SBC8360 Single 1525 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1526 1527 To compile this driver as a module, choose M here: the 1528 module will be called sbc8360. 1529 1530 Most people will say N. 1531 1532config SBC7240_WDT 1533 tristate "SBC Nano 7240 Watchdog Timer" 1534 depends on X86_32 && !UML 1535 help 1536 This is the driver for the hardware watchdog found on the IEI 1537 single board computers EPIC Nano 7240 (and likely others). This 1538 watchdog simply watches your kernel to make sure it doesn't freeze, 1539 and if it does, it reboots your computer after a certain amount of 1540 time. 1541 1542 To compile this driver as a module, choose M here: the 1543 module will be called sbc7240_wdt. 1544 1545config SMSC_SCH311X_WDT 1546 tristate "SMSC SCH311X Watchdog Timer" 1547 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1548 help 1549 This is the driver for the hardware watchdog timer on the 1550 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1551 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1552 serial ports). 1553 1554 To compile this driver as a module, choose M here: the 1555 module will be called sch311x_wdt. 1556 1557config SMSC37B787_WDT 1558 tristate "Winbond SMsC37B787 Watchdog Timer" 1559 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1560 help 1561 This is the driver for the hardware watchdog component on the 1562 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1563 from Vision Systems and maybe others. 1564 1565 This watchdog simply watches your kernel to make sure it doesn't 1566 freeze, and if it does, it reboots your computer after a certain 1567 amount of time. 1568 1569 Usually a userspace daemon will notify the kernel WDT driver that 1570 userspace is still alive, at regular intervals. 1571 1572 To compile this driver as a module, choose M here: the 1573 module will be called smsc37b787_wdt. 1574 1575 Most people will say N. 1576 1577config TQMX86_WDT 1578 tristate "TQ-Systems TQMX86 Watchdog Timer" 1579 depends on X86 || COMPILE_TEST 1580 select WATCHDOG_CORE 1581 help 1582 This is the driver for the hardware watchdog timer in the TQMX86 IO 1583 controller found on some of their ComExpress Modules. 1584 1585 To compile this driver as a module, choose M here; the module 1586 will be called tqmx86_wdt. 1587 1588 Most people will say N. 1589 1590config VIA_WDT 1591 tristate "VIA Watchdog Timer" 1592 depends on (X86 || COMPILE_TEST) && PCI 1593 select WATCHDOG_CORE 1594 help 1595 This is the driver for the hardware watchdog timer on VIA 1596 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1597 1598 To compile this driver as a module, choose M here; the module 1599 will be called via_wdt. 1600 1601 Most people will say N. 1602 1603config W83627HF_WDT 1604 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1605 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1606 select WATCHDOG_CORE 1607 help 1608 This is the driver for the hardware watchdog on the following 1609 Super I/O chips. 1610 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1611 W83637HF 1612 W83667HG/HG-B 1613 W83687THF 1614 W83697HF 1615 W83697UG 1616 NCT6775 1617 NCT6776 1618 NCT6779 1619 NCT6791 1620 NCT6792 1621 NCT6102D/04D/06D 1622 NCT6116D 1623 1624 This watchdog simply watches your kernel to make sure it doesn't 1625 freeze, and if it does, it reboots your computer after a certain 1626 amount of time. 1627 1628 To compile this driver as a module, choose M here: the 1629 module will be called w83627hf_wdt. 1630 1631 Most people will say N. 1632 1633config W83877F_WDT 1634 tristate "W83877F (EMACS) Watchdog Timer" 1635 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1636 help 1637 This is the driver for the hardware watchdog on the W83877F chipset 1638 as used in EMACS PC-104 motherboards (and likely others). This 1639 watchdog simply watches your kernel to make sure it doesn't freeze, 1640 and if it does, it reboots your computer after a certain amount of 1641 time. 1642 1643 To compile this driver as a module, choose M here: the 1644 module will be called w83877f_wdt. 1645 1646 Most people will say N. 1647 1648config W83977F_WDT 1649 tristate "W83977F (PCM-5335) Watchdog Timer" 1650 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1651 help 1652 This is the driver for the hardware watchdog on the W83977F I/O chip 1653 as used in AAEON's PCM-5335 SBC (and likely others). This 1654 watchdog simply watches your kernel to make sure it doesn't freeze, 1655 and if it does, it reboots your computer after a certain amount of 1656 time. 1657 1658 To compile this driver as a module, choose M here: the 1659 module will be called w83977f_wdt. 1660 1661config MACHZ_WDT 1662 tristate "ZF MachZ Watchdog" 1663 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1664 help 1665 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1666 N. This is the driver for the watchdog timer built-in on that 1667 processor using ZF-Logic interface. This watchdog simply watches 1668 your kernel to make sure it doesn't freeze, and if it does, it 1669 reboots your computer after a certain amount of time. 1670 1671 To compile this driver as a module, choose M here: the 1672 module will be called machzwd. 1673 1674config SBC_EPX_C3_WATCHDOG 1675 tristate "Winsystems SBC EPX-C3 watchdog" 1676 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1677 help 1678 This is the driver for the built-in watchdog timer on the EPX-C3 1679 Single-board computer made by Winsystems, Inc. 1680 1681 *Note*: This hardware watchdog is not probeable and thus there 1682 is no way to know if writing to its IO address will corrupt 1683 your system or have any real effect. The only way to be sure 1684 that this driver does what you want is to make sure you 1685 are running it on an EPX-C3 from Winsystems with the watchdog 1686 timer at IO address 0x1ee and 0x1ef. It will write to both those 1687 IO ports. Basically, the assumption is made that if you compile 1688 this driver into your kernel and/or load it as a module, that you 1689 know what you are doing and that you are in fact running on an 1690 EPX-C3 board! 1691 1692 To compile this driver as a module, choose M here: the 1693 module will be called sbc_epx_c3. 1694 1695config INTEL_MEI_WDT 1696 tristate "Intel MEI iAMT Watchdog" 1697 depends on INTEL_MEI && X86 1698 select WATCHDOG_CORE 1699 help 1700 A device driver for the Intel MEI iAMT watchdog. 1701 1702 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1703 Whenever the OS hangs or crashes, iAMT will send an event 1704 to any subscriber to this event. The watchdog doesn't reset the 1705 the platform. 1706 1707 To compile this driver as a module, choose M here: 1708 the module will be called mei_wdt. 1709 1710config NI903X_WDT 1711 tristate "NI 903x/913x Watchdog" 1712 depends on X86 && ACPI 1713 select WATCHDOG_CORE 1714 help 1715 This is the driver for the watchdog timer on the National Instruments 1716 903x/913x real-time controllers. 1717 1718 To compile this driver as a module, choose M here: the module will be 1719 called ni903x_wdt. 1720 1721config NIC7018_WDT 1722 tristate "NIC7018 Watchdog" 1723 depends on X86 && ACPI 1724 select WATCHDOG_CORE 1725 help 1726 Support for National Instruments NIC7018 Watchdog. 1727 1728 To compile this driver as a module, choose M here: the module will be 1729 called nic7018_wdt. 1730 1731config SIEMENS_SIMATIC_IPC_WDT 1732 tristate "Siemens Simatic IPC Watchdog" 1733 depends on SIEMENS_SIMATIC_IPC && PCI 1734 default y 1735 select WATCHDOG_CORE 1736 select P2SB if X86 1737 help 1738 This driver adds support for several watchdogs found in Industrial 1739 PCs from Siemens. 1740 1741 To compile this driver as a module, choose M here: the module will be 1742 called simatic-ipc-wdt. 1743 1744# M68K Architecture 1745 1746config M54xx_WATCHDOG 1747 tristate "MCF54xx watchdog support" 1748 depends on M548x 1749 help 1750 To compile this driver as a module, choose M here: the 1751 module will be called m54xx_wdt. 1752 1753# MicroBlaze Architecture 1754 1755# MIPS Architecture 1756 1757config ATH79_WDT 1758 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1759 depends on ATH79 || (ARM && COMPILE_TEST) 1760 help 1761 Hardware driver for the built-in watchdog timer on the Atheros 1762 AR71XX/AR724X/AR913X SoCs. 1763 1764config BCM47XX_WDT 1765 tristate "Broadcom BCM47xx Watchdog Timer" 1766 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1767 select WATCHDOG_CORE 1768 help 1769 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1770 1771config RC32434_WDT 1772 tristate "IDT RC32434 SoC Watchdog Timer" 1773 depends on MIKROTIK_RB532 1774 help 1775 Hardware driver for the IDT RC32434 SoC built-in 1776 watchdog timer. 1777 1778 To compile this driver as a module, choose M here: the 1779 module will be called rc32434_wdt. 1780 1781config INDYDOG 1782 tristate "Indy/I2 Hardware Watchdog" 1783 depends on SGI_HAS_INDYDOG 1784 help 1785 Hardware driver for the Indy's/I2's watchdog. This is a 1786 watchdog timer that will reboot the machine after a 60 second 1787 timer expired and no process has written to /dev/watchdog during 1788 that time. 1789 1790config JZ4740_WDT 1791 tristate "Ingenic jz4740 SoC hardware watchdog" 1792 depends on MIPS || COMPILE_TEST 1793 depends on COMMON_CLK 1794 select WATCHDOG_CORE 1795 select MFD_SYSCON 1796 help 1797 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1798 1799config WDT_MTX1 1800 tristate "MTX-1 Hardware Watchdog" 1801 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1802 help 1803 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1804 will reboot the machine after a 100 seconds timer expired. 1805 1806config SIBYTE_WDOG 1807 tristate "Sibyte SoC hardware watchdog" 1808 depends on CPU_SB1 1809 help 1810 Watchdog driver for the built in watchdog hardware in Sibyte 1811 SoC processors. There are apparently two watchdog timers 1812 on such processors; this driver supports only the first one, 1813 because currently Linux only supports exporting one watchdog 1814 to userspace. 1815 1816 To compile this driver as a loadable module, choose M here. 1817 The module will be called sb_wdog. 1818 1819config TXX9_WDT 1820 tristate "Toshiba TXx9 Watchdog Timer" 1821 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1822 select WATCHDOG_CORE 1823 help 1824 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1825 1826config OCTEON_WDT 1827 tristate "Cavium OCTEON SOC family Watchdog Timer" 1828 depends on CAVIUM_OCTEON_SOC 1829 default y 1830 select WATCHDOG_CORE 1831 select EXPORT_UASM if OCTEON_WDT = m 1832 help 1833 Hardware driver for OCTEON's on chip watchdog timer. 1834 Enables the watchdog for all cores running Linux. It 1835 installs a NMI handler and pokes the watchdog based on an 1836 interrupt. On first expiration of the watchdog, the 1837 interrupt handler pokes it. The second expiration causes an 1838 NMI that prints a message. The third expiration causes a 1839 global soft reset. 1840 1841 When userspace has /dev/watchdog open, no poking is done 1842 from the first interrupt, it is then only poked when the 1843 device is written. 1844 1845config MARVELL_GTI_WDT 1846 tristate "Marvell GTI Watchdog driver" 1847 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1848 default y 1849 select WATCHDOG_CORE 1850 help 1851 Marvell GTI hardware supports watchdog timer. First timeout 1852 works as watchdog pretimeout and installed interrupt handler 1853 will be called on first timeout. Hardware can generate interrupt 1854 to SCP on second timeout but it is not enabled, so second 1855 timeout is ignored. If device poke does not happen then system 1856 will reboot on third timeout. 1857 1858config BCM2835_WDT 1859 tristate "Broadcom BCM2835 hardware watchdog" 1860 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1861 select WATCHDOG_CORE 1862 help 1863 Watchdog driver for the built in watchdog hardware in Broadcom 1864 BCM2835 SoC. 1865 1866 To compile this driver as a loadable module, choose M here. 1867 The module will be called bcm2835_wdt. 1868 1869config BCM_KONA_WDT 1870 tristate "BCM Kona Watchdog" 1871 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1872 select WATCHDOG_CORE 1873 help 1874 Support for the watchdog timer on the following Broadcom BCM281xx 1875 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1876 BCM28155 variants. 1877 1878 Say 'Y' or 'M' here to enable the driver. The module will be called 1879 bcm_kona_wdt. 1880 1881config BCM_KONA_WDT_DEBUG 1882 bool "DEBUGFS support for BCM Kona Watchdog" 1883 depends on BCM_KONA_WDT || COMPILE_TEST 1884 help 1885 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1886 access to the driver's internal data structures as well as watchdog 1887 timer hardware registres. 1888 1889 If in doubt, say 'N'. 1890 1891config BCM7038_WDT 1892 tristate "BCM63xx/BCM7038 Watchdog" 1893 select WATCHDOG_CORE 1894 depends on HAS_IOMEM 1895 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1896 help 1897 Watchdog driver for the built-in hardware in Broadcom 7038 and 1898 later SoCs used in set-top boxes. BCM7038 was made public 1899 during the 2004 CES, and since then, many Broadcom chips use this 1900 watchdog block, including some cable modem chips and DSL (63xx) 1901 chips. 1902 1903config IMGPDC_WDT 1904 tristate "Imagination Technologies PDC Watchdog Timer" 1905 depends on HAS_IOMEM 1906 depends on MIPS || COMPILE_TEST 1907 select WATCHDOG_CORE 1908 help 1909 Driver for Imagination Technologies PowerDown Controller 1910 Watchdog Timer. 1911 1912 To compile this driver as a loadable module, choose M here. 1913 The module will be called imgpdc_wdt. 1914 1915config LANTIQ_WDT 1916 tristate "Lantiq SoC watchdog" 1917 depends on LANTIQ 1918 select WATCHDOG_CORE 1919 help 1920 Hardware driver for the Lantiq SoC Watchdog Timer. 1921 1922config LOONGSON1_WDT 1923 tristate "Loongson1 SoC hardware watchdog" 1924 depends on MACH_LOONGSON32 || COMPILE_TEST 1925 select WATCHDOG_CORE 1926 help 1927 Hardware driver for the Loongson1 SoC Watchdog Timer. 1928 1929config RALINK_WDT 1930 tristate "Ralink SoC watchdog" 1931 select WATCHDOG_CORE 1932 depends on RALINK 1933 help 1934 Hardware driver for the Ralink SoC Watchdog Timer. 1935 1936config GXP_WATCHDOG 1937 tristate "HPE GXP watchdog support" 1938 depends on ARCH_HPE_GXP || COMPILE_TEST 1939 select WATCHDOG_CORE 1940 help 1941 Say Y here to include support for the watchdog timer 1942 in HPE GXP SoCs. 1943 1944 To compile this driver as a module, choose M here. 1945 The module will be called gxp-wdt. 1946 1947config MT7621_WDT 1948 tristate "Mediatek SoC watchdog" 1949 select WATCHDOG_CORE 1950 select REGMAP_MMIO 1951 select MFD_SYSCON 1952 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1953 help 1954 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1955 1956config PIC32_WDT 1957 tristate "Microchip PIC32 hardware watchdog" 1958 select WATCHDOG_CORE 1959 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1960 help 1961 Watchdog driver for the built in watchdog hardware in a PIC32. 1962 1963 Configuration bits must be set appropriately for the watchdog to be 1964 controlled by this driver. 1965 1966 To compile this driver as a loadable module, choose M here. 1967 The module will be called pic32-wdt. 1968 1969config PIC32_DMT 1970 tristate "Microchip PIC32 Deadman Timer" 1971 select WATCHDOG_CORE 1972 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1973 help 1974 Watchdog driver for PIC32 instruction fetch counting timer. This 1975 specific timer is typically be used in mission critical and safety 1976 critical applications, where any single failure of the software 1977 functionality and sequencing must be detected. 1978 1979 To compile this driver as a loadable module, choose M here. 1980 The module will be called pic32-dmt. 1981 1982# PARISC Architecture 1983 1984# POWERPC Architecture 1985 1986config GEF_WDT 1987 tristate "GE Watchdog Timer" 1988 depends on GE_FPGA 1989 help 1990 Watchdog timer found in a number of GE single board computers. 1991 1992config MPC5200_WDT 1993 bool "MPC52xx Watchdog Timer" 1994 depends on PPC_MPC52xx || COMPILE_TEST 1995 help 1996 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1997 1998config 8xxx_WDT 1999 tristate "MPC8xxx Platform Watchdog Timer" 2000 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2001 select WATCHDOG_CORE 2002 help 2003 This driver is for a SoC level watchdog that exists on some 2004 Freescale PowerPC processors. So far this driver supports: 2005 - MPC8xx watchdogs 2006 - MPC83xx watchdogs 2007 - MPC86xx watchdogs 2008 2009 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2010 2011config PIKA_WDT 2012 tristate "PIKA FPGA Watchdog" 2013 depends on WARP || (PPC64 && COMPILE_TEST) 2014 default y 2015 help 2016 This enables the watchdog in the PIKA FPGA. Currently used on 2017 the Warp platform. 2018 2019config BOOKE_WDT 2020 tristate "PowerPC Book-E Watchdog Timer" 2021 depends on BOOKE || 4xx 2022 select WATCHDOG_CORE 2023 help 2024 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2025 MPC85xx SOCs and the IBM PowerPC 440. 2026 2027 Please see Documentation/watchdog/watchdog-api.rst for 2028 more information. 2029 2030config BOOKE_WDT_DEFAULT_TIMEOUT 2031 int "PowerPC Book-E Watchdog Timer Default Timeout" 2032 depends on BOOKE_WDT 2033 default 38 if PPC_E500 2034 range 0 63 if PPC_E500 2035 default 3 if !PPC_E500 2036 range 0 3 if !PPC_E500 2037 help 2038 Select the default watchdog timer period to be used by the PowerPC 2039 Book-E watchdog driver. A watchdog "event" occurs when the bit 2040 position represented by this number transitions from zero to one. 2041 2042 For Freescale Book-E processors, this is a number between 0 and 63. 2043 For other Book-E processors, this is a number between 0 and 3. 2044 2045 The value can be overridden by the wdt_period command-line parameter. 2046 2047config MEN_A21_WDT 2048 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2049 select WATCHDOG_CORE 2050 depends on GPIOLIB || COMPILE_TEST 2051 help 2052 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2053 2054 The driver can also be built as a module. If so, the module will be 2055 called mena21_wdt. 2056 2057 If unsure select N here. 2058 2059# PPC64 Architecture 2060 2061config PSERIES_WDT 2062 tristate "POWER Architecture Platform Watchdog Timer" 2063 depends on PPC_PSERIES 2064 select WATCHDOG_CORE 2065 help 2066 Driver for virtual watchdog timers provided by PAPR 2067 hypervisors (e.g. PowerVM, KVM). 2068 2069config WATCHDOG_RTAS 2070 tristate "RTAS watchdog" 2071 depends on PPC_RTAS 2072 help 2073 This driver adds watchdog support for the RTAS watchdog. 2074 2075 To compile this driver as a module, choose M here. The module 2076 will be called wdrtas. 2077 2078# RISC-V Architecture 2079 2080config STARFIVE_WATCHDOG 2081 tristate "StarFive Watchdog support" 2082 depends on ARCH_STARFIVE || COMPILE_TEST 2083 select WATCHDOG_CORE 2084 default ARCH_STARFIVE 2085 help 2086 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2087 SoC. This driver can also be built as a module if choose M. 2088 2089# S390 Architecture 2090 2091config DIAG288_WATCHDOG 2092 tristate "System z diag288 Watchdog" 2093 depends on S390 2094 select WATCHDOG_CORE 2095 help 2096 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2097 provide a virtual watchdog timer to their guest that cause a 2098 user define Control Program command to be executed after a 2099 timeout. 2100 LPAR provides a very similar interface. This driver handles 2101 both. 2102 2103 To compile this driver as a module, choose M here. The module 2104 will be called diag288_wdt. 2105 2106# SUPERH (sh + sh64) Architecture 2107 2108config SH_WDT 2109 tristate "SuperH Watchdog" 2110 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2111 select WATCHDOG_CORE 2112 help 2113 This driver adds watchdog support for the integrated watchdog in the 2114 SuperH processors. If you have one of these processors and wish 2115 to have watchdog support enabled, say Y, otherwise say N. 2116 2117 As a side note, saying Y here will automatically boost HZ to 1000 2118 so that the timer has a chance to clear the overflow counter. On 2119 slower systems (such as the SH-2 and SH-3) this will likely yield 2120 some performance issues. As such, the WDT should be avoided here 2121 unless it is absolutely necessary. 2122 2123 To compile this driver as a module, choose M here: the 2124 module will be called shwdt. 2125 2126# SPARC Architecture 2127 2128# SPARC64 Architecture 2129 2130config WATCHDOG_CP1XXX 2131 tristate "CP1XXX Hardware Watchdog support" 2132 depends on SPARC64 && PCI 2133 help 2134 This is the driver for the hardware watchdog timers present on 2135 Sun Microsystems CompactPCI models CP1400 and CP1500. 2136 2137 To compile this driver as a module, choose M here: the 2138 module will be called cpwatchdog. 2139 2140 If you do not have a CompactPCI model CP1400 or CP1500, or 2141 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2142 you should say N to this option. 2143 2144config WATCHDOG_RIO 2145 tristate "RIO Hardware Watchdog support" 2146 depends on SPARC64 && PCI 2147 help 2148 Say Y here to support the hardware watchdog capability on Sun RIO 2149 machines. The watchdog timeout period is normally one minute but 2150 can be changed with a boot-time parameter. 2151 2152config WATCHDOG_SUN4V 2153 tristate "Sun4v Watchdog support" 2154 select WATCHDOG_CORE 2155 depends on SPARC64 2156 help 2157 Say Y here to support the hypervisor watchdog capability embedded 2158 in the SPARC sun4v architecture. 2159 2160 To compile this driver as a module, choose M here. The module will 2161 be called sun4v_wdt. 2162 2163# XTENSA Architecture 2164 2165# Xen Architecture 2166 2167config XEN_WDT 2168 tristate "Xen Watchdog support" 2169 depends on XEN 2170 select WATCHDOG_CORE 2171 help 2172 Say Y here to support the hypervisor watchdog capability provided 2173 by Xen 4.0 and newer. The watchdog timeout period is normally one 2174 minute but can be changed with a boot-time parameter. 2175 2176config UML_WATCHDOG 2177 tristate "UML watchdog" 2178 depends on UML || COMPILE_TEST 2179 2180# 2181# ISA-based Watchdog Cards 2182# 2183 2184comment "ISA-based Watchdog Cards" 2185 depends on ISA 2186 2187config PCWATCHDOG 2188 tristate "Berkshire Products ISA-PC Watchdog" 2189 depends on ISA 2190 help 2191 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2192 This card simply watches your kernel to make sure it doesn't freeze, 2193 and if it does, it reboots your computer after a certain amount of 2194 time. This driver is like the WDT501 driver but for different 2195 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2196 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2197 2198 To compile this driver as a module, choose M here: the 2199 module will be called pcwd. 2200 2201 Most people will say N. 2202 2203config MIXCOMWD 2204 tristate "Mixcom Watchdog" 2205 depends on ISA 2206 help 2207 This is a driver for the Mixcom hardware watchdog cards. This 2208 watchdog simply watches your kernel to make sure it doesn't freeze, 2209 and if it does, it reboots your computer after a certain amount of 2210 time. 2211 2212 To compile this driver as a module, choose M here: the 2213 module will be called mixcomwd. 2214 2215 Most people will say N. 2216 2217config WDT 2218 tristate "WDT Watchdog timer" 2219 depends on ISA 2220 help 2221 If you have a WDT500P or WDT501P watchdog board, say Y here, 2222 otherwise N. It is not possible to probe for this board, which means 2223 that you have to inform the kernel about the IO port and IRQ that 2224 is needed (you can do this via the io and irq parameters) 2225 2226 To compile this driver as a module, choose M here: the 2227 module will be called wdt. 2228 2229# 2230# PCI-based Watchdog Cards 2231# 2232 2233comment "PCI-based Watchdog Cards" 2234 depends on PCI 2235 2236config PCIPCWATCHDOG 2237 tristate "Berkshire Products PCI-PC Watchdog" 2238 depends on PCI && HAS_IOPORT 2239 help 2240 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2241 This card simply watches your kernel to make sure it doesn't freeze, 2242 and if it does, it reboots your computer after a certain amount of 2243 time. The card can also monitor the internal temperature of the PC. 2244 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2245 2246 To compile this driver as a module, choose M here: the 2247 module will be called pcwd_pci. 2248 2249 Most people will say N. 2250 2251config WDTPCI 2252 tristate "PCI-WDT500/501 Watchdog timer" 2253 depends on PCI && HAS_IOPORT 2254 help 2255 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2256 2257 If you have a PCI-WDT501 watchdog board then you can enable the 2258 temperature sensor by setting the type parameter to 501. 2259 2260 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2261 can do this via the tachometer parameter. Only do this if you have a 2262 fan tachometer actually set up. 2263 2264 To compile this driver as a module, choose M here: the 2265 module will be called wdt_pci. 2266 2267# 2268# USB-based Watchdog Cards 2269# 2270 2271comment "USB-based Watchdog Cards" 2272 depends on USB 2273 2274config USBPCWATCHDOG 2275 tristate "Berkshire Products USB-PC Watchdog" 2276 depends on USB 2277 help 2278 This is the driver for the Berkshire Products USB-PC Watchdog card. 2279 This card simply watches your kernel to make sure it doesn't freeze, 2280 and if it does, it reboots your computer after a certain amount of 2281 time. The card can also monitor the internal temperature of the PC. 2282 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2283 2284 To compile this driver as a module, choose M here: the 2285 module will be called pcwd_usb. 2286 2287 Most people will say N. 2288 2289config KEEMBAY_WATCHDOG 2290 tristate "Intel Keem Bay SoC non-secure watchdog" 2291 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2292 select WATCHDOG_CORE 2293 help 2294 This option enable support for an In-secure watchdog timer driver for 2295 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2296 count unit. An interrupt will be triggered, when the count crosses 2297 the threshold configured in the register. 2298 2299 To compile this driver as a module, choose M here: the 2300 module will be called keembay_wdt. 2301 2302endif # WATCHDOG 2303