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 select WATCHDOG_CORE 274 help 275 If you say yes here you get support for the watchdog 276 functionality for the Lenovo SE10 platform. 277 278 This driver can also be built as a module. If so, the module 279 will be called lenovo-se10-wdt. 280 281config MENF21BMC_WATCHDOG 282 tristate "MEN 14F021P00 BMC Watchdog" 283 depends on MFD_MENF21BMC || COMPILE_TEST 284 depends on I2C 285 select WATCHDOG_CORE 286 help 287 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 288 289 This driver can also be built as a module. If so the module 290 will be called menf21bmc_wdt. 291 292config MENZ069_WATCHDOG 293 tristate "MEN 16Z069 Watchdog" 294 depends on MCB 295 select WATCHDOG_CORE 296 help 297 Say Y here to include support for the MEN 16Z069 Watchdog. 298 299 This driver can also be built as a module. If so the module 300 will be called menz069_wdt. 301 302config WDAT_WDT 303 tristate "ACPI Watchdog Action Table (WDAT)" 304 depends on ACPI 305 select WATCHDOG_CORE 306 select ACPI_WATCHDOG 307 help 308 This driver adds support for systems with ACPI Watchdog Action 309 Table (WDAT) table. Servers typically have this but it can be 310 found on some desktop machines as well. This driver will take 311 over the native iTCO watchdog driver found on many Intel CPUs. 312 313 To compile this driver as module, choose M here: the module will 314 be called wdat_wdt. 315 316config WM831X_WATCHDOG 317 tristate "WM831x watchdog" 318 depends on MFD_WM831X 319 select WATCHDOG_CORE 320 help 321 Support for the watchdog in the WM831x AudioPlus PMICs. When 322 the watchdog triggers the system will be reset. 323 324config WM8350_WATCHDOG 325 tristate "WM8350 watchdog" 326 depends on MFD_WM8350 327 select WATCHDOG_CORE 328 help 329 Support for the watchdog in the WM8350 AudioPlus PMIC. When 330 the watchdog triggers the system will be reset. 331 332config XILINX_WATCHDOG 333 tristate "Xilinx Watchdog timer" 334 depends on HAS_IOMEM 335 select WATCHDOG_CORE 336 help 337 Watchdog driver for the xps_timebase_wdt IP core. 338 339 To compile this driver as a module, choose M here: the 340 module will be called of_xilinx_wdt. 341 342config XILINX_WINDOW_WATCHDOG 343 tristate "Xilinx window watchdog timer" 344 depends on HAS_IOMEM 345 depends on ARM64 || COMPILE_TEST 346 select WATCHDOG_CORE 347 help 348 Window watchdog driver for the versal_wwdt IP core. 349 Window watchdog timer(WWDT) contains closed(first) and 350 open(second) window with 32 bit width. Write to the watchdog 351 timer within predefined window periods of time. This means 352 a period that is not too soon and a period that is not too 353 late. The WWDT has to be restarted within the open window time. 354 If software tries to restart WWDT outside of the open window 355 time period, it generates a reset. 356 357 To compile this driver as a module, choose M here: the 358 module will be called xilinx_wwdt. 359 360config ZIIRAVE_WATCHDOG 361 tristate "Zodiac RAVE Watchdog Timer" 362 depends on I2C 363 select WATCHDOG_CORE 364 help 365 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 366 Processor. 367 368 To compile this driver as a module, choose M here: the 369 module will be called ziirave_wdt. 370 371config RAVE_SP_WATCHDOG 372 tristate "RAVE SP Watchdog timer" 373 depends on RAVE_SP_CORE 374 depends on NVMEM || !NVMEM 375 select WATCHDOG_CORE 376 help 377 Support for the watchdog on RAVE SP device. 378 379config MLX_WDT 380 tristate "Mellanox Watchdog" 381 depends on MELLANOX_PLATFORM || COMPILE_TEST 382 select WATCHDOG_CORE 383 select REGMAP 384 help 385 This is the driver for the hardware watchdog on Mellanox systems. 386 If you are going to use it, say Y here, otherwise N. 387 This driver can be used together with the watchdog daemon. 388 It can also watch your kernel to make sure it doesn't freeze, 389 and if it does, it reboots your system after a certain amount of 390 time. 391 392 To compile this driver as a module, choose M here: the 393 module will be called mlx-wdt. 394 395config SL28CPLD_WATCHDOG 396 tristate "Kontron sl28cpld Watchdog" 397 depends on MFD_SL28CPLD || COMPILE_TEST 398 select WATCHDOG_CORE 399 help 400 Say Y here to include support for the watchdog timer 401 on the Kontron sl28 CPLD. 402 403 To compile this driver as a module, choose M here: the 404 module will be called sl28cpld_wdt. 405 406# ALPHA Architecture 407 408# ARM Architecture 409 410config ARM_SP805_WATCHDOG 411 tristate "ARM SP805 Watchdog" 412 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 413 select WATCHDOG_CORE 414 help 415 ARM Primecell SP805 Watchdog timer. This will reboot your system when 416 the timeout is reached. 417 418config ARM_SBSA_WATCHDOG 419 tristate "ARM SBSA Generic Watchdog" 420 depends on ARM64 421 depends on ARM_ARCH_TIMER 422 select WATCHDOG_CORE 423 help 424 ARM SBSA Generic Watchdog has two stage timeouts: 425 the first signal (WS0) is for alerting the system by interrupt, 426 the second one (WS1) is a real hardware reset. 427 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 428 429 This driver can operate ARM SBSA Generic Watchdog as a single stage 430 or a two stages watchdog, it depends on the module parameter "action". 431 432 Note: the maximum timeout in the two stages mode is half of that in 433 the single stage mode. 434 435 To compile this driver as module, choose M here: The module 436 will be called sbsa_gwdt. 437 438config ARMADA_37XX_WATCHDOG 439 tristate "Armada 37xx watchdog" 440 depends on ARCH_MVEBU || COMPILE_TEST 441 depends on HAS_IOMEM 442 select MFD_SYSCON 443 select WATCHDOG_CORE 444 help 445 Say Y here to include support for the watchdog timer found on 446 Marvell Armada 37xx SoCs. 447 To compile this driver as a module, choose M here: the 448 module will be called armada_37xx_wdt. 449 450config ASM9260_WATCHDOG 451 tristate "Alphascale ASM9260 watchdog" 452 depends on MACH_ASM9260 || COMPILE_TEST 453 depends on OF 454 select WATCHDOG_CORE 455 select RESET_CONTROLLER 456 help 457 Watchdog timer embedded into Alphascale asm9260 chips. This will 458 reboot your system when the timeout is reached. 459 460config AT91RM9200_WATCHDOG 461 tristate "AT91RM9200 watchdog" 462 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 463 help 464 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 465 system when the timeout is reached. 466 467config AT91SAM9X_WATCHDOG 468 tristate "AT91SAM9X / AT91CAP9 watchdog" 469 depends on ARCH_AT91 || COMPILE_TEST 470 select WATCHDOG_CORE 471 help 472 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 473 reboot your system when the timeout is reached. 474 475config SAMA5D4_WATCHDOG 476 tristate "Atmel SAMA5D4 Watchdog Timer" 477 depends on ARCH_AT91 || COMPILE_TEST 478 select WATCHDOG_CORE 479 help 480 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 481 Its Watchdog Timer Mode Register can be written more than once. 482 This will reboot your system when the timeout is reached. 483 484config CADENCE_WATCHDOG 485 tristate "Cadence Watchdog Timer" 486 depends on HAS_IOMEM 487 select WATCHDOG_CORE 488 help 489 Say Y here if you want to include support for the watchdog 490 timer in the Xilinx Zynq. 491 492config 21285_WATCHDOG 493 tristate "DC21285 watchdog" 494 depends on FOOTBRIDGE 495 help 496 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 497 here if you wish to use this. Alternatively say M to compile the 498 driver as a module, which will be called wdt285. 499 500 This driver does not work on all machines. In particular, early CATS 501 boards have hardware problems that will cause the machine to simply 502 lock up if the watchdog fires. 503 504 "If in doubt, leave it out" - say N. 505 506config 977_WATCHDOG 507 tristate "NetWinder WB83C977 watchdog" 508 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 509 depends on HAS_IOPORT 510 help 511 Say Y here to include support for the WB977 watchdog included in 512 NetWinder machines. Alternatively say M to compile the driver as 513 a module, which will be called wdt977. 514 515 Not sure? It's safe to say N. 516 517config FTWDT010_WATCHDOG 518 tristate "Faraday Technology FTWDT010 watchdog" 519 depends on ARM || COMPILE_TEST 520 select WATCHDOG_CORE 521 default ARCH_GEMINI 522 help 523 Say Y here if to include support for the Faraday Technology 524 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 525 family of devices. 526 527 To compile this driver as a module, choose M here: the 528 module will be called ftwdt010_wdt. 529 530config IXP4XX_WATCHDOG 531 tristate "IXP4xx Watchdog" 532 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST) 533 select WATCHDOG_CORE 534 help 535 Say Y here if to include support for the watchdog timer 536 in the Intel IXP4xx network processors. This driver can 537 be built as a module by choosing M. The module will 538 be called ixp4xx_wdt. 539 540 Note: The internal IXP4xx watchdog does a soft CPU reset 541 which doesn't reset any peripherals. There are circumstances 542 where the watchdog will fail to reset the board correctly 543 (e.g., if the boot ROM is in an unreadable state). 544 545 Say N if you are unsure. 546 547config S3C2410_WATCHDOG 548 tristate "S3C6410/S5Pv210/Exynos Watchdog" 549 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 550 select WATCHDOG_CORE 551 help 552 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 553 SoCs. This will reboot the system when the timer expires with 554 the watchdog enabled. 555 556 The driver is limited by the speed of the system's PCLK 557 signal, so with reasonably fast systems (PCLK around 50-66MHz) 558 then watchdog intervals of over approximately 20seconds are 559 unavailable. 560 561 Choose Y/M here only if you build for such Samsung SoC. 562 The driver can be built as a module by choosing M, and will 563 be called s3c2410_wdt. 564 565config SA1100_WATCHDOG 566 tristate "SA1100/PXA2xx watchdog" 567 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 568 help 569 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 570 reboot your system when timeout is reached. 571 572 NOTE: once enabled, this timer cannot be disabled. 573 574 To compile this driver as a module, choose M here: the 575 module will be called sa1100_wdt. 576 577config DW_WATCHDOG 578 tristate "Synopsys DesignWare watchdog" 579 depends on HAS_IOMEM 580 select WATCHDOG_CORE 581 help 582 Say Y here if to include support for the Synopsys DesignWare 583 watchdog timer found in many chips. 584 To compile this driver as a module, choose M here: the 585 module will be called dw_wdt. 586 587config EP93XX_WATCHDOG 588 tristate "EP93xx Watchdog" 589 depends on ARCH_EP93XX || COMPILE_TEST 590 select WATCHDOG_CORE 591 help 592 Say Y here if to include support for the watchdog timer 593 embedded in the Cirrus Logic EP93xx family of devices. 594 595 To compile this driver as a module, choose M here: the 596 module will be called ep93xx_wdt. 597 598config OMAP_WATCHDOG 599 tristate "OMAP Watchdog" 600 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 601 select WATCHDOG_CORE 602 help 603 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 604 Say 'Y' here to enable the 605 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 606 607config PNX4008_WATCHDOG 608 tristate "LPC32XX Watchdog" 609 depends on ARCH_LPC32XX || COMPILE_TEST 610 select WATCHDOG_CORE 611 help 612 Say Y here if to include support for the watchdog timer 613 in the LPC32XX processor. 614 This driver can be built as a module by choosing M. The module 615 will be called pnx4008_wdt. 616 617 Say N if you are unsure. 618 619config DAVINCI_WATCHDOG 620 tristate "DaVinci watchdog" 621 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 622 select WATCHDOG_CORE 623 help 624 Say Y here if to include support for the watchdog timer 625 in the DaVinci DM644x/DM646x or Keystone processors. 626 To compile this driver as a module, choose M here: the 627 module will be called davinci_wdt. 628 629 NOTE: once enabled, this timer cannot be disabled. 630 Say N if you are unsure. 631 632config K3_RTI_WATCHDOG 633 tristate "Texas Instruments K3 RTI watchdog" 634 depends on ARCH_K3 || COMPILE_TEST 635 select WATCHDOG_CORE 636 help 637 Say Y here if you want to include support for the K3 watchdog 638 timer (RTI module) available in the K3 generation of processors. 639 640config ORION_WATCHDOG 641 tristate "Orion watchdog" 642 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 643 depends on ARM 644 select WATCHDOG_CORE 645 help 646 Say Y here if to include support for the watchdog timer 647 in the Marvell Orion5x and Kirkwood ARM SoCs. 648 To compile this driver as a module, choose M here: the 649 module will be called orion_wdt. 650 651config RN5T618_WATCHDOG 652 tristate "Ricoh RN5T618 watchdog" 653 depends on MFD_RN5T618 || COMPILE_TEST 654 select WATCHDOG_CORE 655 help 656 If you say yes here you get support for watchdog on the Ricoh 657 RN5T618 PMIC. 658 659 This driver can also be built as a module. If so, the module 660 will be called rn5t618_wdt. 661 662config SUNXI_WATCHDOG 663 tristate "Allwinner SoCs watchdog support" 664 depends on ARCH_SUNXI || COMPILE_TEST 665 select WATCHDOG_CORE 666 help 667 Say Y here to include support for the watchdog timer 668 in Allwinner SoCs. 669 To compile this driver as a module, choose M here: the 670 module will be called sunxi_wdt. 671 672config NPCM7XX_WATCHDOG 673 tristate "Nuvoton NPCM750 watchdog" 674 depends on ARCH_NPCM || COMPILE_TEST 675 default y if ARCH_NPCM7XX 676 select WATCHDOG_CORE 677 help 678 Say Y here to include Watchdog timer support for the 679 watchdog embedded into the NPCM7xx. 680 This watchdog is used to reset the system and thus cannot be 681 compiled as a module. 682 683config TWL4030_WATCHDOG 684 tristate "TWL4030 Watchdog" 685 depends on TWL4030_CORE 686 select WATCHDOG_CORE 687 help 688 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 689 watchdog timer support for TWL4030 chips. 690 691config STMP3XXX_RTC_WATCHDOG 692 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 693 depends on RTC_DRV_STMP || COMPILE_TEST 694 select WATCHDOG_CORE 695 help 696 Say Y here to include support for the watchdog timer inside 697 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 698 To compile this driver as a module, choose M here: the 699 module will be called stmp3xxx_rtc_wdt. 700 701config TS4800_WATCHDOG 702 tristate "TS-4800 Watchdog" 703 depends on HAS_IOMEM && OF 704 depends on SOC_IMX51 || COMPILE_TEST 705 select WATCHDOG_CORE 706 select MFD_SYSCON 707 help 708 Technologic Systems TS-4800 has watchdog timer implemented in 709 an external FPGA. Say Y here if you want to support for the 710 watchdog timer on TS-4800 board. 711 712config TS72XX_WATCHDOG 713 tristate "TS-72XX SBC Watchdog" 714 depends on MACH_TS72XX || COMPILE_TEST 715 select WATCHDOG_CORE 716 help 717 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 718 watchdog timer implemented in a external CPLD chip. Say Y here 719 if you want to support for the watchdog timer on TS-72XX boards. 720 721 To compile this driver as a module, choose M here: the 722 module will be called ts72xx_wdt. 723 724config MAX63XX_WATCHDOG 725 tristate "Max63xx watchdog" 726 depends on HAS_IOMEM 727 select WATCHDOG_CORE 728 help 729 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 730 731config MAX77620_WATCHDOG 732 tristate "Maxim Max77620 Watchdog Timer" 733 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 734 select WATCHDOG_CORE 735 help 736 This is the driver for the Max77620 watchdog timer. 737 Say 'Y' here to enable the watchdog timer support for 738 MAX77620 chips. To compile this driver as a module, 739 choose M here: the module will be called max77620_wdt. 740 741config IMX2_WDT 742 tristate "IMX2+ Watchdog" 743 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 744 select REGMAP_MMIO 745 select WATCHDOG_CORE 746 help 747 This is the driver for the hardware watchdog 748 on the Freescale IMX2 and later processors. 749 If you have one of these processors and wish to have 750 watchdog support enabled, say Y, otherwise say N. 751 752 To compile this driver as a module, choose M here: the 753 module will be called imx2_wdt. 754 755config IMX_SC_WDT 756 tristate "IMX SC Watchdog" 757 depends on HAVE_ARM_SMCCC 758 depends on IMX_SCU || COMPILE_TEST 759 select WATCHDOG_CORE 760 help 761 This is the driver for the system controller watchdog 762 on the NXP i.MX SoCs with system controller inside, the 763 watchdog driver will call ARM SMC API and trap into 764 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 765 will request system controller to execute the operations. 766 If you have one of these processors and wish to have 767 watchdog support enabled, say Y, otherwise say N. 768 769 To compile this driver as a module, choose M here: the 770 module will be called imx_sc_wdt. 771 772config IMX7ULP_WDT 773 tristate "IMX7ULP Watchdog" 774 depends on ARCH_MXC || COMPILE_TEST 775 select WATCHDOG_CORE 776 help 777 This is the driver for the hardware watchdog on the Freescale 778 IMX7ULP and later processors. If you have one of these 779 processors and wish to have watchdog support enabled, 780 say Y, otherwise say N. 781 782 To compile this driver as a module, choose M here: the 783 module will be called imx7ulp_wdt. 784 785config DB500_WATCHDOG 786 tristate "ST-Ericsson DB800 watchdog" 787 depends on MFD_DB8500_PRCMU 788 select WATCHDOG_CORE 789 default y 790 help 791 Say Y here to include Watchdog timer support for the watchdog 792 existing in the prcmu of ST-Ericsson DB8500 platform. 793 794 To compile this driver as a module, choose M here: the 795 module will be called db500_wdt. 796 797config RETU_WATCHDOG 798 tristate "Retu watchdog" 799 depends on MFD_RETU 800 select WATCHDOG_CORE 801 help 802 Retu watchdog driver for Nokia Internet Tablets (770, N800, 803 N810). At least on N800 the watchdog cannot be disabled, so 804 this driver is essential and you should enable it. 805 806 To compile this driver as a module, choose M here: the 807 module will be called retu_wdt. 808 809config MOXART_WDT 810 tristate "MOXART watchdog" 811 depends on ARCH_MOXART || COMPILE_TEST 812 help 813 Say Y here to include Watchdog timer support for the watchdog 814 existing on the MOXA ART SoC series platforms. 815 816 To compile this driver as a module, choose M here: the 817 module will be called moxart_wdt. 818 819config ST_LPC_WATCHDOG 820 tristate "STMicroelectronics LPC Watchdog" 821 depends on ARCH_STI || COMPILE_TEST 822 depends on OF 823 select WATCHDOG_CORE 824 help 825 Say Y here to include STMicroelectronics Low Power Controller 826 (LPC) based Watchdog timer support. 827 828 To compile this driver as a module, choose M here: the 829 module will be called st_lpc_wdt. 830 831config TEGRA_WATCHDOG 832 tristate "Tegra watchdog" 833 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 834 select WATCHDOG_CORE 835 help 836 Say Y here to include support for the watchdog timer 837 embedded in NVIDIA Tegra SoCs. 838 839 To compile this driver as a module, choose M here: the 840 module will be called tegra_wdt. 841 842config QCOM_WDT 843 tristate "QCOM watchdog" 844 depends on HAS_IOMEM 845 depends on ARCH_QCOM || COMPILE_TEST 846 select WATCHDOG_CORE 847 help 848 Say Y here to include Watchdog timer support for the watchdog found 849 on QCOM chipsets. Currently supported targets are the MSM8960, 850 APQ8064, and IPQ8064. 851 852 To compile this driver as a module, choose M here: the 853 module will be called qcom_wdt. 854 855config MESON_GXBB_WATCHDOG 856 tristate "Amlogic Meson GXBB SoCs watchdog support" 857 depends on ARCH_MESON || COMPILE_TEST 858 select WATCHDOG_CORE 859 help 860 Say Y here to include support for the watchdog timer 861 in Amlogic Meson GXBB SoCs. 862 To compile this driver as a module, choose M here: the 863 module will be called meson_gxbb_wdt. 864 865config MESON_WATCHDOG 866 tristate "Amlogic Meson 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 SoCs. 872 To compile this driver as a module, choose M here: the 873 module will be called meson_wdt. 874 875config MEDIATEK_WATCHDOG 876 tristate "Mediatek SoCs watchdog support" 877 depends on ARCH_MEDIATEK || COMPILE_TEST 878 default ARCH_MEDIATEK 879 select WATCHDOG_CORE 880 select RESET_CONTROLLER 881 help 882 Say Y here to include support for the watchdog timer 883 in Mediatek SoCs. 884 To compile this driver as a module, choose M here: the 885 module will be called mtk_wdt. 886 887config DIGICOLOR_WATCHDOG 888 tristate "Conexant Digicolor SoCs watchdog support" 889 depends on ARCH_DIGICOLOR || COMPILE_TEST 890 select WATCHDOG_CORE 891 help 892 Say Y here to include support for the watchdog timer 893 in Conexant Digicolor SoCs. 894 To compile this driver as a module, choose M here: the 895 module will be called digicolor_wdt. 896 897config ARM_SMC_WATCHDOG 898 tristate "ARM Secure Monitor Call based watchdog support" 899 depends on ARM || ARM64 900 depends on OF 901 depends on HAVE_ARM_SMCCC 902 select WATCHDOG_CORE 903 help 904 Say Y here to include support for a watchdog timer 905 implemented by the EL3 Secure Monitor on ARM platforms. 906 Requires firmware support. 907 To compile this driver as a module, choose M here: the 908 module will be called arm_smc_wdt. 909 910config LPC18XX_WATCHDOG 911 tristate "LPC18xx/43xx Watchdog" 912 depends on ARCH_LPC18XX || COMPILE_TEST 913 depends on HAS_IOMEM 914 select WATCHDOG_CORE 915 help 916 Say Y here if to include support for the watchdog timer 917 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 918 processors. 919 To compile this driver as a module, choose M here: the 920 module will be called lpc18xx_wdt. 921 922config RENESAS_WDT 923 tristate "Renesas WDT Watchdog" 924 depends on ARCH_RENESAS || COMPILE_TEST 925 select WATCHDOG_CORE 926 help 927 This driver adds watchdog support for the integrated watchdogs in the 928 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 929 930config RENESAS_RZAWDT 931 tristate "Renesas RZ/A WDT Watchdog" 932 depends on ARCH_RENESAS || COMPILE_TEST 933 select WATCHDOG_CORE 934 help 935 This driver adds watchdog support for the integrated watchdogs in the 936 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 937 938config RENESAS_RZN1WDT 939 tristate "Renesas RZ/N1 watchdog" 940 depends on ARCH_RENESAS || COMPILE_TEST 941 select WATCHDOG_CORE 942 help 943 This driver adds watchdog support for the integrated watchdogs in the 944 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 945 946config RENESAS_RZG2LWDT 947 tristate "Renesas RZ/G2L WDT Watchdog" 948 depends on ARCH_RENESAS || COMPILE_TEST 949 select WATCHDOG_CORE 950 help 951 This driver adds watchdog support for the integrated watchdogs in the 952 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 953 954config ASPEED_WATCHDOG 955 tristate "Aspeed BMC watchdog support" 956 depends on ARCH_ASPEED || COMPILE_TEST 957 select WATCHDOG_CORE 958 help 959 Say Y here to include support for the watchdog timer 960 in Aspeed BMC SoCs. 961 962 This driver is required to reboot the SoC. 963 964 To compile this driver as a module, choose M here: the 965 module will be called aspeed_wdt. 966 967config STM32_WATCHDOG 968 tristate "STM32 Independent WatchDoG (IWDG) support" 969 depends on ARCH_STM32 || COMPILE_TEST 970 select WATCHDOG_CORE 971 default y 972 help 973 Say Y here to include support for the watchdog timer 974 in stm32 SoCs. 975 976 To compile this driver as a module, choose M here: the 977 module will be called stm32_iwdg. 978 979config STPMIC1_WATCHDOG 980 tristate "STPMIC1 PMIC watchdog support" 981 depends on MFD_STPMIC1 982 select WATCHDOG_CORE 983 help 984 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 985 If the watchdog timer expires, stpmic1 will shut down all its power 986 supplies. 987 988 To compile this driver as a module, choose M here: the 989 module will be called spmic1_wdt. 990 991config UNIPHIER_WATCHDOG 992 tristate "UniPhier watchdog support" 993 depends on ARCH_UNIPHIER || COMPILE_TEST 994 depends on OF && MFD_SYSCON 995 select WATCHDOG_CORE 996 help 997 Say Y here to include support watchdog timer embedded 998 into the UniPhier system. 999 1000 To compile this driver as a module, choose M here: the 1001 module will be called uniphier_wdt. 1002 1003config RTD119X_WATCHDOG 1004 bool "Realtek RTD119x/RTD129x watchdog support" 1005 depends on ARCH_REALTEK || COMPILE_TEST 1006 depends on OF 1007 select WATCHDOG_CORE 1008 default ARCH_REALTEK 1009 help 1010 Say Y here to include support for the watchdog timer in 1011 Realtek RTD1295 SoCs. 1012 1013config REALTEK_OTTO_WDT 1014 tristate "Realtek Otto MIPS watchdog support" 1015 depends on MACH_REALTEK_RTL || COMPILE_TEST 1016 depends on COMMON_CLK 1017 select WATCHDOG_CORE 1018 default MACH_REALTEK_RTL 1019 help 1020 Say Y here to include support for the watchdog timer on Realtek 1021 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1022 notifications and system reset on timeout. 1023 1024 When built as a module this will be called realtek_otto_wdt. 1025 1026config SPRD_WATCHDOG 1027 tristate "Spreadtrum watchdog support" 1028 depends on ARCH_SPRD || COMPILE_TEST 1029 select WATCHDOG_CORE 1030 help 1031 Say Y here to include watchdog timer supported 1032 by Spreadtrum system. 1033 1034config PM8916_WATCHDOG 1035 tristate "QCOM PM8916 pmic watchdog" 1036 depends on OF && MFD_SPMI_PMIC 1037 select WATCHDOG_CORE 1038 help 1039 Say Y here to include support watchdog timer embedded into the 1040 pm8916 module. 1041 1042config VISCONTI_WATCHDOG 1043 tristate "Toshiba Visconti series watchdog support" 1044 depends on ARCH_VISCONTI || COMPILE_TEST 1045 select WATCHDOG_CORE 1046 help 1047 Say Y here to include support for the watchdog timer in Toshiba 1048 Visconti SoCs. 1049 1050config MSC313E_WATCHDOG 1051 tristate "MStar MSC313e watchdog" 1052 depends on ARCH_MSTARV7 || COMPILE_TEST 1053 select WATCHDOG_CORE 1054 help 1055 Say Y here to include support for the Watchdog timer embedded 1056 into MStar MSC313e chips. This will reboot your system when the 1057 timeout is reached. 1058 1059 To compile this driver as a module, choose M here: the 1060 module will be called msc313e_wdt. 1061 1062config APPLE_WATCHDOG 1063 tristate "Apple SoC watchdog" 1064 depends on ARCH_APPLE || COMPILE_TEST 1065 select WATCHDOG_CORE 1066 help 1067 Say Y here to include support for the Watchdog found in Apple 1068 SoCs such as the M1. Next to the common watchdog features this 1069 driver is also required in order to reboot these SoCs. 1070 1071 To compile this driver as a module, choose M here: the 1072 module will be called apple_wdt. 1073 1074config SUNPLUS_WATCHDOG 1075 tristate "Sunplus watchdog support" 1076 depends on ARCH_SUNPLUS || COMPILE_TEST 1077 select WATCHDOG_CORE 1078 help 1079 Say Y here to include support for the watchdog timer 1080 in Sunplus SoCs. 1081 1082 To compile this driver as a module, choose M here: the 1083 module will be called sunplus_wdt. 1084 1085# X86 (i386 + ia64 + x86_64) Architecture 1086 1087config ACQUIRE_WDT 1088 tristate "Acquire SBC Watchdog Timer" 1089 depends on X86 1090 help 1091 This is the driver for the hardware watchdog on Single Board 1092 Computers produced by Acquire Inc (and others). This watchdog 1093 simply watches your kernel to make sure it doesn't freeze, and if 1094 it does, it reboots your computer after a certain amount of time. 1095 1096 To compile this driver as a module, choose M here: the 1097 module will be called acquirewdt. 1098 1099 Most people will say N. 1100 1101config ADVANTECH_WDT 1102 tristate "Advantech SBC Watchdog Timer" 1103 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1104 help 1105 If you are configuring a Linux kernel for the Advantech single-board 1106 computer, say `Y' here to support its built-in watchdog timer 1107 feature. More information can be found at 1108 <https://www.advantech.com.tw/products/> 1109 1110config ADVANTECH_EC_WDT 1111 tristate "Advantech Embedded Controller Watchdog Timer" 1112 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1113 select ISA_BUS_API 1114 select WATCHDOG_CORE 1115 help 1116 This driver supports Advantech products with ITE based Embedded Controller. 1117 It does not support Advantech products with other ECs or without EC. 1118 1119config ALIM1535_WDT 1120 tristate "ALi M1535 PMU Watchdog Timer" 1121 depends on (X86 || COMPILE_TEST) && PCI 1122 help 1123 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1124 1125 To compile this driver as a module, choose M here: the 1126 module will be called alim1535_wdt. 1127 1128 Most people will say N. 1129 1130config ALIM7101_WDT 1131 tristate "ALi M7101 PMU Computer Watchdog" 1132 depends on PCI 1133 help 1134 This is the driver for the hardware watchdog on the ALi M7101 PMU 1135 as used in the x86 Cobalt servers and also found in some 1136 SPARC Netra servers too. 1137 1138 To compile this driver as a module, choose M here: the 1139 module will be called alim7101_wdt. 1140 1141 Most people will say N. 1142 1143config EBC_C384_WDT 1144 tristate "WinSystems EBC-C384 Watchdog Timer" 1145 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1146 select ISA_BUS_API 1147 select WATCHDOG_CORE 1148 help 1149 Enables watchdog timer support for the watchdog timer on the 1150 WinSystems EBC-C384 motherboard. The timeout may be configured via 1151 the timeout module parameter. 1152 1153config EXAR_WDT 1154 tristate "Exar Watchdog Timer" 1155 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1156 select WATCHDOG_CORE 1157 help 1158 Enables watchdog timer support for the watchdog timer present 1159 in some Exar/MaxLinear UART chips like the XR28V38x. 1160 1161 To compile this driver as a module, choose M here: the 1162 module will be called exar_wdt. 1163 1164config F71808E_WDT 1165 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1166 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1167 select WATCHDOG_CORE 1168 help 1169 This is the driver for the hardware watchdog on the Fintek F71808E, 1170 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1171 F81866 Super I/O controllers. 1172 1173 You can compile this driver directly into the kernel, or use 1174 it as a module. The module will be called f71808e_wdt. 1175 1176config SP5100_TCO 1177 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1178 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1179 select WATCHDOG_CORE 1180 help 1181 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1182 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1183 the machine after its expiration. The expiration time can be 1184 configured with the "heartbeat" parameter. 1185 1186 To compile this driver as a module, choose M here: the 1187 module will be called sp5100_tco. 1188 1189config GEODE_WDT 1190 tristate "AMD Geode CS5535/CS5536 Watchdog" 1191 depends on CS5535_MFGPT 1192 help 1193 This driver enables a watchdog capability built into the 1194 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1195 processors. This watchdog watches your kernel to make sure 1196 it doesn't freeze, and if it does, it reboots your computer after 1197 a certain amount of time. 1198 1199 You can compile this driver directly into the kernel, or use 1200 it as a module. The module will be called geodewdt. 1201 1202config SC520_WDT 1203 tristate "AMD Elan SC520 processor Watchdog" 1204 depends on MELAN || COMPILE_TEST 1205 help 1206 This is the driver for the hardware watchdog built in to the 1207 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1208 This watchdog simply watches your kernel to make sure it doesn't 1209 freeze, and if it does, it reboots your computer after a certain 1210 amount of time. 1211 1212 You can compile this driver directly into the kernel, or use 1213 it as a module. The module will be called sc520_wdt. 1214 1215config SBC_FITPC2_WATCHDOG 1216 tristate "Compulab SBC-FITPC2 watchdog" 1217 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1218 help 1219 This is the driver for the built-in watchdog timer on the fit-PC2, 1220 fit-PC2i, CM-iAM single-board computers made by Compulab. 1221 1222 It's possible to enable the watchdog timer either from BIOS (F2) or 1223 from booted Linux. 1224 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1225 operational range. 1226 1227 Entering BIOS setup temporarily disables watchdog operation regardless 1228 of current state, so system will not be restarted while user is in 1229 BIOS setup. 1230 1231 Once the watchdog is enabled the system will be restarted every 1232 "Watchdog Timer Value" period, so to prevent it user can restart or 1233 disable the watchdog. 1234 1235 To compile this driver as a module, choose M here: the 1236 module will be called sbc_fitpc2_wdt. 1237 1238 Most people will say N. 1239 1240config EUROTECH_WDT 1241 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1242 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1243 help 1244 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1245 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1246 information are at <http://www.eurotech.it/>. 1247 1248config IB700_WDT 1249 tristate "IB700 SBC Watchdog Timer" 1250 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1251 help 1252 This is the driver for the hardware watchdog on the IB700 Single 1253 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1254 watchdog simply watches your kernel to make sure it doesn't freeze, 1255 and if it does, it reboots your computer after a certain amount of time. 1256 1257 This driver is like the WDT501 driver but for slightly different 1258 hardware. 1259 1260 To compile this driver as a module, choose M here: the 1261 module will be called ib700wdt. 1262 1263 Most people will say N. 1264 1265config IBMASR 1266 tristate "IBM Automatic Server Restart" 1267 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1268 help 1269 This is the driver for the IBM Automatic Server Restart watchdog 1270 timer built-in into some eServer xSeries machines. 1271 1272 To compile this driver as a module, choose M here: the 1273 module will be called ibmasr. 1274 1275config WAFER_WDT 1276 tristate "ICP Single Board Computer Watchdog Timer" 1277 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1278 help 1279 This is a driver for the hardware watchdog on the ICP Single 1280 Board Computer. This driver is working on (at least) the following 1281 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1282 1283 To compile this driver as a module, choose M here: the 1284 module will be called wafer5823wdt. 1285 1286config I6300ESB_WDT 1287 tristate "Intel 6300ESB Timer/Watchdog" 1288 depends on PCI 1289 select WATCHDOG_CORE 1290 help 1291 Hardware driver for the watchdog timer built into the Intel 1292 6300ESB controller hub. 1293 1294 To compile this driver as a module, choose M here: the 1295 module will be called i6300esb. 1296 1297config IE6XX_WDT 1298 tristate "Intel Atom E6xx Watchdog" 1299 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1300 select WATCHDOG_CORE 1301 select MFD_CORE 1302 select LPC_SCH 1303 help 1304 Hardware driver for the watchdog timer built into the Intel 1305 Atom E6XX (TunnelCreek) processor. 1306 1307 To compile this driver as a module, choose M here: the 1308 module will be called ie6xx_wdt. 1309 1310config INTEL_MID_WATCHDOG 1311 tristate "Intel MID Watchdog Timer" 1312 depends on X86_INTEL_MID 1313 select WATCHDOG_CORE 1314 help 1315 Watchdog timer driver built into the Intel SCU for Intel MID 1316 Platforms. 1317 1318 This driver currently supports only the watchdog evolution 1319 implementation in SCU, available for Merrifield generation. 1320 1321 To compile this driver as a module, choose M here. 1322 1323config ITCO_WDT 1324 tristate "Intel TCO Timer/Watchdog" 1325 depends on X86 && PCI 1326 select WATCHDOG_CORE 1327 depends on I2C || I2C=n 1328 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1329 depends on HAS_IOPORT # for I2C_I801 1330 select LPC_ICH if !EXPERT 1331 select I2C_I801 if !EXPERT && I2C 1332 help 1333 Hardware driver for the intel TCO timer based watchdog devices. 1334 These drivers are included in the Intel 82801 I/O Controller 1335 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1336 controller hub. 1337 1338 The TCO (Total Cost of Ownership) timer is a watchdog timer 1339 that will reboot the machine after its second expiration. The 1340 expiration time can be configured with the "heartbeat" parameter. 1341 1342 On some motherboards the driver may fail to reset the chipset's 1343 NO_REBOOT flag which prevents the watchdog from rebooting the 1344 machine. If this is the case you will get a kernel message like 1345 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1346 1347 To compile this driver as a module, choose M here: the 1348 module will be called iTCO_wdt. 1349 1350config ITCO_VENDOR_SUPPORT 1351 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1352 depends on ITCO_WDT 1353 help 1354 Add vendor specific support to the intel TCO timer based watchdog 1355 devices. At this moment we only have additional support for some 1356 SuperMicro Inc. motherboards. 1357 1358config IT8712F_WDT 1359 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1360 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1361 help 1362 This is the driver for the built-in watchdog timer on the IT8712F 1363 Super I/0 chipset used on many motherboards. 1364 1365 If the driver does not work, then make sure that the game port in 1366 the BIOS is enabled. 1367 1368 To compile this driver as a module, choose M here: the 1369 module will be called it8712f_wdt. 1370 1371config IT87_WDT 1372 tristate "IT87 Watchdog Timer" 1373 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1374 select WATCHDOG_CORE 1375 help 1376 This is the driver for the hardware watchdog on the ITE IT8607, 1377 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1378 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1379 IT8783 Super I/O chips. 1380 1381 This watchdog simply watches your kernel to make sure it doesn't 1382 freeze, and if it does, it reboots your computer after a certain 1383 amount of time. 1384 1385 To compile this driver as a module, choose M here: the module will 1386 be called it87_wdt. 1387 1388config HP_WATCHDOG 1389 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1390 select WATCHDOG_CORE 1391 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1392 help 1393 A software monitoring watchdog and NMI handling driver. This driver 1394 will detect lockups and provide a stack trace. This is a driver that 1395 will only load on an HP ProLiant system with a minimum of iLO2 support. 1396 To compile this driver as a module, choose M here: the module will be 1397 called hpwdt. 1398 1399config HPWDT_NMI_DECODING 1400 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1401 depends on X86 && HP_WATCHDOG 1402 default y 1403 help 1404 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1405 "Generate NMI to System" virtual button. When an NMI is claimed 1406 by the driver, panic is called. 1407 1408config KEMPLD_WDT 1409 tristate "Kontron COM Watchdog Timer" 1410 depends on MFD_KEMPLD 1411 select WATCHDOG_CORE 1412 help 1413 Support for the PLD watchdog on some Kontron ETX and COMexpress 1414 (ETXexpress) modules 1415 1416 This driver can also be built as a module. If so, the module will be 1417 called kempld_wdt. 1418 1419config SC1200_WDT 1420 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1421 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1422 help 1423 This is a driver for National Semiconductor PC87307/PC97307 hardware 1424 watchdog cards as found on the SC1200. This watchdog is mainly used 1425 for power management purposes and can be used to power down the device 1426 during inactivity periods (includes interrupt activity monitoring). 1427 1428 To compile this driver as a module, choose M here: the 1429 module will be called sc1200wdt. 1430 1431 Most people will say N. 1432 1433config SCx200_WDT 1434 tristate "National Semiconductor SCx200 Watchdog" 1435 depends on SCx200 && PCI 1436 help 1437 Enable the built-in watchdog timer support on the National 1438 Semiconductor SCx200 processors. 1439 1440 If compiled as a module, it will be called scx200_wdt. 1441 1442config PC87413_WDT 1443 tristate "NS PC87413 watchdog" 1444 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1445 help 1446 This is the driver for the hardware watchdog on the PC87413 chipset 1447 This watchdog simply watches your kernel to make sure it doesn't 1448 freeze, and if it does, it reboots your computer after a certain 1449 amount of time. 1450 1451 To compile this driver as a module, choose M here: the 1452 module will be called pc87413_wdt. 1453 1454 Most people will say N. 1455 1456config NV_TCO 1457 tristate "nVidia TCO Timer/Watchdog" 1458 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1459 help 1460 Hardware driver for the TCO timer built into the nVidia Hub family 1461 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1462 watchdog timer that will reboot the machine after its second 1463 expiration. The expiration time can be configured with the 1464 "heartbeat" parameter. 1465 1466 On some motherboards the driver may fail to reset the chipset's 1467 NO_REBOOT flag which prevents the watchdog from rebooting the 1468 machine. If this is the case you will get a kernel message like 1469 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1470 1471 To compile this driver as a module, choose M here: the 1472 module will be called nv_tco. 1473 1474config RDC321X_WDT 1475 tristate "RDC R-321x SoC watchdog" 1476 depends on X86_RDC321X || COMPILE_TEST 1477 depends on PCI 1478 help 1479 This is the driver for the built in hardware watchdog 1480 in the RDC R-321x SoC. 1481 1482 To compile this driver as a module, choose M here: the 1483 module will be called rdc321x_wdt. 1484 1485config 60XX_WDT 1486 tristate "SBC-60XX Watchdog Timer" 1487 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1488 help 1489 This driver can be used with the watchdog timer found on some 1490 single board computers, namely the 6010 PII based computer. 1491 It may well work with other cards. It reads port 0x443 to enable 1492 and re-set the watchdog timer, and reads port 0x45 to disable 1493 the watchdog. If you have a card that behave in similar ways, 1494 you can probably make this driver work with your card as well. 1495 1496 You can compile this driver directly into the kernel, or use 1497 it as a module. The module will be called sbc60xxwdt. 1498 1499config SBC8360_WDT 1500 tristate "SBC8360 Watchdog Timer" 1501 depends on X86_32 1502 help 1503 1504 This is the driver for the hardware watchdog on the SBC8360 Single 1505 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1506 1507 To compile this driver as a module, choose M here: the 1508 module will be called sbc8360. 1509 1510 Most people will say N. 1511 1512config SBC7240_WDT 1513 tristate "SBC Nano 7240 Watchdog Timer" 1514 depends on X86_32 && !UML 1515 help 1516 This is the driver for the hardware watchdog found on the IEI 1517 single board computers EPIC Nano 7240 (and likely others). This 1518 watchdog simply watches your kernel to make sure it doesn't freeze, 1519 and if it does, it reboots your computer after a certain amount of 1520 time. 1521 1522 To compile this driver as a module, choose M here: the 1523 module will be called sbc7240_wdt. 1524 1525config CPU5_WDT 1526 tristate "SMA CPU5 Watchdog" 1527 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1528 help 1529 TBD. 1530 To compile this driver as a module, choose M here: the 1531 module will be called cpu5wdt. 1532 1533config SMSC_SCH311X_WDT 1534 tristate "SMSC SCH311X Watchdog Timer" 1535 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1536 help 1537 This is the driver for the hardware watchdog timer on the 1538 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1539 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1540 serial ports). 1541 1542 To compile this driver as a module, choose M here: the 1543 module will be called sch311x_wdt. 1544 1545config SMSC37B787_WDT 1546 tristate "Winbond SMsC37B787 Watchdog Timer" 1547 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1548 help 1549 This is the driver for the hardware watchdog component on the 1550 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1551 from Vision Systems and maybe others. 1552 1553 This watchdog simply watches your kernel to make sure it doesn't 1554 freeze, and if it does, it reboots your computer after a certain 1555 amount of time. 1556 1557 Usually a userspace daemon will notify the kernel WDT driver that 1558 userspace is still alive, at regular intervals. 1559 1560 To compile this driver as a module, choose M here: the 1561 module will be called smsc37b787_wdt. 1562 1563 Most people will say N. 1564 1565config TQMX86_WDT 1566 tristate "TQ-Systems TQMX86 Watchdog Timer" 1567 depends on X86 || COMPILE_TEST 1568 select WATCHDOG_CORE 1569 help 1570 This is the driver for the hardware watchdog timer in the TQMX86 IO 1571 controller found on some of their ComExpress Modules. 1572 1573 To compile this driver as a module, choose M here; the module 1574 will be called tqmx86_wdt. 1575 1576 Most people will say N. 1577 1578config VIA_WDT 1579 tristate "VIA Watchdog Timer" 1580 depends on (X86 || COMPILE_TEST) && PCI 1581 select WATCHDOG_CORE 1582 help 1583 This is the driver for the hardware watchdog timer on VIA 1584 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1585 1586 To compile this driver as a module, choose M here; the module 1587 will be called via_wdt. 1588 1589 Most people will say N. 1590 1591config W83627HF_WDT 1592 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1593 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1594 select WATCHDOG_CORE 1595 help 1596 This is the driver for the hardware watchdog on the following 1597 Super I/O chips. 1598 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1599 W83637HF 1600 W83667HG/HG-B 1601 W83687THF 1602 W83697HF 1603 W83697UG 1604 NCT6775 1605 NCT6776 1606 NCT6779 1607 NCT6791 1608 NCT6792 1609 NCT6102D/04D/06D 1610 NCT6116D 1611 1612 This watchdog simply watches your kernel to make sure it doesn't 1613 freeze, and if it does, it reboots your computer after a certain 1614 amount of time. 1615 1616 To compile this driver as a module, choose M here: the 1617 module will be called w83627hf_wdt. 1618 1619 Most people will say N. 1620 1621config W83877F_WDT 1622 tristate "W83877F (EMACS) Watchdog Timer" 1623 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1624 help 1625 This is the driver for the hardware watchdog on the W83877F chipset 1626 as used in EMACS PC-104 motherboards (and likely others). This 1627 watchdog simply watches your kernel to make sure it doesn't freeze, 1628 and if it does, it reboots your computer after a certain amount of 1629 time. 1630 1631 To compile this driver as a module, choose M here: the 1632 module will be called w83877f_wdt. 1633 1634 Most people will say N. 1635 1636config W83977F_WDT 1637 tristate "W83977F (PCM-5335) Watchdog Timer" 1638 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1639 help 1640 This is the driver for the hardware watchdog on the W83977F I/O chip 1641 as used in AAEON's PCM-5335 SBC (and likely others). This 1642 watchdog simply watches your kernel to make sure it doesn't freeze, 1643 and if it does, it reboots your computer after a certain amount of 1644 time. 1645 1646 To compile this driver as a module, choose M here: the 1647 module will be called w83977f_wdt. 1648 1649config MACHZ_WDT 1650 tristate "ZF MachZ Watchdog" 1651 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1652 help 1653 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1654 N. This is the driver for the watchdog timer built-in on that 1655 processor using ZF-Logic interface. This watchdog simply watches 1656 your kernel to make sure it doesn't freeze, and if it does, it 1657 reboots your computer after a certain amount of time. 1658 1659 To compile this driver as a module, choose M here: the 1660 module will be called machzwd. 1661 1662config SBC_EPX_C3_WATCHDOG 1663 tristate "Winsystems SBC EPX-C3 watchdog" 1664 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1665 help 1666 This is the driver for the built-in watchdog timer on the EPX-C3 1667 Single-board computer made by Winsystems, Inc. 1668 1669 *Note*: This hardware watchdog is not probeable and thus there 1670 is no way to know if writing to its IO address will corrupt 1671 your system or have any real effect. The only way to be sure 1672 that this driver does what you want is to make sure you 1673 are running it on an EPX-C3 from Winsystems with the watchdog 1674 timer at IO address 0x1ee and 0x1ef. It will write to both those 1675 IO ports. Basically, the assumption is made that if you compile 1676 this driver into your kernel and/or load it as a module, that you 1677 know what you are doing and that you are in fact running on an 1678 EPX-C3 board! 1679 1680 To compile this driver as a module, choose M here: the 1681 module will be called sbc_epx_c3. 1682 1683config INTEL_MEI_WDT 1684 tristate "Intel MEI iAMT Watchdog" 1685 depends on INTEL_MEI && X86 1686 select WATCHDOG_CORE 1687 help 1688 A device driver for the Intel MEI iAMT watchdog. 1689 1690 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1691 Whenever the OS hangs or crashes, iAMT will send an event 1692 to any subscriber to this event. The watchdog doesn't reset the 1693 the platform. 1694 1695 To compile this driver as a module, choose M here: 1696 the module will be called mei_wdt. 1697 1698config NI903X_WDT 1699 tristate "NI 903x/913x Watchdog" 1700 depends on X86 && ACPI 1701 select WATCHDOG_CORE 1702 help 1703 This is the driver for the watchdog timer on the National Instruments 1704 903x/913x real-time controllers. 1705 1706 To compile this driver as a module, choose M here: the module will be 1707 called ni903x_wdt. 1708 1709config NIC7018_WDT 1710 tristate "NIC7018 Watchdog" 1711 depends on X86 && ACPI 1712 select WATCHDOG_CORE 1713 help 1714 Support for National Instruments NIC7018 Watchdog. 1715 1716 To compile this driver as a module, choose M here: the module will be 1717 called nic7018_wdt. 1718 1719config SIEMENS_SIMATIC_IPC_WDT 1720 tristate "Siemens Simatic IPC Watchdog" 1721 depends on SIEMENS_SIMATIC_IPC && PCI 1722 default y 1723 select WATCHDOG_CORE 1724 select P2SB if X86 1725 help 1726 This driver adds support for several watchdogs found in Industrial 1727 PCs from Siemens. 1728 1729 To compile this driver as a module, choose M here: the module will be 1730 called simatic-ipc-wdt. 1731 1732# M68K Architecture 1733 1734config M54xx_WATCHDOG 1735 tristate "MCF54xx watchdog support" 1736 depends on M548x 1737 help 1738 To compile this driver as a module, choose M here: the 1739 module will be called m54xx_wdt. 1740 1741# MicroBlaze Architecture 1742 1743# MIPS Architecture 1744 1745config ATH79_WDT 1746 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1747 depends on ATH79 || (ARM && COMPILE_TEST) 1748 help 1749 Hardware driver for the built-in watchdog timer on the Atheros 1750 AR71XX/AR724X/AR913X SoCs. 1751 1752config BCM47XX_WDT 1753 tristate "Broadcom BCM47xx Watchdog Timer" 1754 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1755 select WATCHDOG_CORE 1756 help 1757 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1758 1759config RC32434_WDT 1760 tristate "IDT RC32434 SoC Watchdog Timer" 1761 depends on MIKROTIK_RB532 1762 help 1763 Hardware driver for the IDT RC32434 SoC built-in 1764 watchdog timer. 1765 1766 To compile this driver as a module, choose M here: the 1767 module will be called rc32434_wdt. 1768 1769config INDYDOG 1770 tristate "Indy/I2 Hardware Watchdog" 1771 depends on SGI_HAS_INDYDOG 1772 help 1773 Hardware driver for the Indy's/I2's watchdog. This is a 1774 watchdog timer that will reboot the machine after a 60 second 1775 timer expired and no process has written to /dev/watchdog during 1776 that time. 1777 1778config JZ4740_WDT 1779 tristate "Ingenic jz4740 SoC hardware watchdog" 1780 depends on MIPS || COMPILE_TEST 1781 depends on COMMON_CLK 1782 select WATCHDOG_CORE 1783 select MFD_SYSCON 1784 help 1785 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1786 1787config WDT_MTX1 1788 tristate "MTX-1 Hardware Watchdog" 1789 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1790 help 1791 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1792 will reboot the machine after a 100 seconds timer expired. 1793 1794config SIBYTE_WDOG 1795 tristate "Sibyte SoC hardware watchdog" 1796 depends on CPU_SB1 1797 help 1798 Watchdog driver for the built in watchdog hardware in Sibyte 1799 SoC processors. There are apparently two watchdog timers 1800 on such processors; this driver supports only the first one, 1801 because currently Linux only supports exporting one watchdog 1802 to userspace. 1803 1804 To compile this driver as a loadable module, choose M here. 1805 The module will be called sb_wdog. 1806 1807config TXX9_WDT 1808 tristate "Toshiba TXx9 Watchdog Timer" 1809 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1810 select WATCHDOG_CORE 1811 help 1812 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1813 1814config OCTEON_WDT 1815 tristate "Cavium OCTEON SOC family Watchdog Timer" 1816 depends on CAVIUM_OCTEON_SOC 1817 default y 1818 select WATCHDOG_CORE 1819 select EXPORT_UASM if OCTEON_WDT = m 1820 help 1821 Hardware driver for OCTEON's on chip watchdog timer. 1822 Enables the watchdog for all cores running Linux. It 1823 installs a NMI handler and pokes the watchdog based on an 1824 interrupt. On first expiration of the watchdog, the 1825 interrupt handler pokes it. The second expiration causes an 1826 NMI that prints a message. The third expiration causes a 1827 global soft reset. 1828 1829 When userspace has /dev/watchdog open, no poking is done 1830 from the first interrupt, it is then only poked when the 1831 device is written. 1832 1833config MARVELL_GTI_WDT 1834 tristate "Marvell GTI Watchdog driver" 1835 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1836 default y 1837 select WATCHDOG_CORE 1838 help 1839 Marvell GTI hardware supports watchdog timer. First timeout 1840 works as watchdog pretimeout and installed interrupt handler 1841 will be called on first timeout. Hardware can generate interrupt 1842 to SCP on second timeout but it is not enabled, so second 1843 timeout is ignored. If device poke does not happen then system 1844 will reboot on third timeout. 1845 1846config BCM2835_WDT 1847 tristate "Broadcom BCM2835 hardware watchdog" 1848 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1849 select WATCHDOG_CORE 1850 help 1851 Watchdog driver for the built in watchdog hardware in Broadcom 1852 BCM2835 SoC. 1853 1854 To compile this driver as a loadable module, choose M here. 1855 The module will be called bcm2835_wdt. 1856 1857config BCM_KONA_WDT 1858 tristate "BCM Kona Watchdog" 1859 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1860 select WATCHDOG_CORE 1861 help 1862 Support for the watchdog timer on the following Broadcom BCM281xx 1863 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1864 BCM28155 variants. 1865 1866 Say 'Y' or 'M' here to enable the driver. The module will be called 1867 bcm_kona_wdt. 1868 1869config BCM_KONA_WDT_DEBUG 1870 bool "DEBUGFS support for BCM Kona Watchdog" 1871 depends on BCM_KONA_WDT || COMPILE_TEST 1872 help 1873 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1874 access to the driver's internal data structures as well as watchdog 1875 timer hardware registres. 1876 1877 If in doubt, say 'N'. 1878 1879config BCM7038_WDT 1880 tristate "BCM63xx/BCM7038 Watchdog" 1881 select WATCHDOG_CORE 1882 depends on HAS_IOMEM 1883 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1884 help 1885 Watchdog driver for the built-in hardware in Broadcom 7038 and 1886 later SoCs used in set-top boxes. BCM7038 was made public 1887 during the 2004 CES, and since then, many Broadcom chips use this 1888 watchdog block, including some cable modem chips and DSL (63xx) 1889 chips. 1890 1891config IMGPDC_WDT 1892 tristate "Imagination Technologies PDC Watchdog Timer" 1893 depends on HAS_IOMEM 1894 depends on MIPS || COMPILE_TEST 1895 select WATCHDOG_CORE 1896 help 1897 Driver for Imagination Technologies PowerDown Controller 1898 Watchdog Timer. 1899 1900 To compile this driver as a loadable module, choose M here. 1901 The module will be called imgpdc_wdt. 1902 1903config LANTIQ_WDT 1904 tristate "Lantiq SoC watchdog" 1905 depends on LANTIQ 1906 select WATCHDOG_CORE 1907 help 1908 Hardware driver for the Lantiq SoC Watchdog Timer. 1909 1910config LOONGSON1_WDT 1911 tristate "Loongson1 SoC hardware watchdog" 1912 depends on MACH_LOONGSON32 || COMPILE_TEST 1913 select WATCHDOG_CORE 1914 help 1915 Hardware driver for the Loongson1 SoC Watchdog Timer. 1916 1917config RALINK_WDT 1918 tristate "Ralink SoC watchdog" 1919 select WATCHDOG_CORE 1920 depends on RALINK 1921 help 1922 Hardware driver for the Ralink SoC Watchdog Timer. 1923 1924config GXP_WATCHDOG 1925 tristate "HPE GXP watchdog support" 1926 depends on ARCH_HPE_GXP || COMPILE_TEST 1927 select WATCHDOG_CORE 1928 help 1929 Say Y here to include support for the watchdog timer 1930 in HPE GXP SoCs. 1931 1932 To compile this driver as a module, choose M here. 1933 The module will be called gxp-wdt. 1934 1935config MT7621_WDT 1936 tristate "Mediatek SoC watchdog" 1937 select WATCHDOG_CORE 1938 select REGMAP_MMIO 1939 select MFD_SYSCON 1940 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1941 help 1942 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1943 1944config PIC32_WDT 1945 tristate "Microchip PIC32 hardware watchdog" 1946 select WATCHDOG_CORE 1947 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1948 help 1949 Watchdog driver for the built in watchdog hardware in a PIC32. 1950 1951 Configuration bits must be set appropriately for the watchdog to be 1952 controlled by this driver. 1953 1954 To compile this driver as a loadable module, choose M here. 1955 The module will be called pic32-wdt. 1956 1957config PIC32_DMT 1958 tristate "Microchip PIC32 Deadman Timer" 1959 select WATCHDOG_CORE 1960 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1961 help 1962 Watchdog driver for PIC32 instruction fetch counting timer. This 1963 specific timer is typically be used in mission critical and safety 1964 critical applications, where any single failure of the software 1965 functionality and sequencing must be detected. 1966 1967 To compile this driver as a loadable module, choose M here. 1968 The module will be called pic32-dmt. 1969 1970# PARISC Architecture 1971 1972# POWERPC Architecture 1973 1974config GEF_WDT 1975 tristate "GE Watchdog Timer" 1976 depends on GE_FPGA 1977 help 1978 Watchdog timer found in a number of GE single board computers. 1979 1980config MPC5200_WDT 1981 bool "MPC52xx Watchdog Timer" 1982 depends on PPC_MPC52xx || COMPILE_TEST 1983 help 1984 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1985 1986config 8xxx_WDT 1987 tristate "MPC8xxx Platform Watchdog Timer" 1988 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1989 select WATCHDOG_CORE 1990 help 1991 This driver is for a SoC level watchdog that exists on some 1992 Freescale PowerPC processors. So far this driver supports: 1993 - MPC8xx watchdogs 1994 - MPC83xx watchdogs 1995 - MPC86xx watchdogs 1996 1997 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1998 1999config PIKA_WDT 2000 tristate "PIKA FPGA Watchdog" 2001 depends on WARP || (PPC64 && COMPILE_TEST) 2002 default y 2003 help 2004 This enables the watchdog in the PIKA FPGA. Currently used on 2005 the Warp platform. 2006 2007config BOOKE_WDT 2008 tristate "PowerPC Book-E Watchdog Timer" 2009 depends on BOOKE || 4xx 2010 select WATCHDOG_CORE 2011 help 2012 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2013 MPC85xx SOCs and the IBM PowerPC 440. 2014 2015 Please see Documentation/watchdog/watchdog-api.rst for 2016 more information. 2017 2018config BOOKE_WDT_DEFAULT_TIMEOUT 2019 int "PowerPC Book-E Watchdog Timer Default Timeout" 2020 depends on BOOKE_WDT 2021 default 38 if PPC_E500 2022 range 0 63 if PPC_E500 2023 default 3 if !PPC_E500 2024 range 0 3 if !PPC_E500 2025 help 2026 Select the default watchdog timer period to be used by the PowerPC 2027 Book-E watchdog driver. A watchdog "event" occurs when the bit 2028 position represented by this number transitions from zero to one. 2029 2030 For Freescale Book-E processors, this is a number between 0 and 63. 2031 For other Book-E processors, this is a number between 0 and 3. 2032 2033 The value can be overridden by the wdt_period command-line parameter. 2034 2035config MEN_A21_WDT 2036 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2037 select WATCHDOG_CORE 2038 depends on GPIOLIB || COMPILE_TEST 2039 help 2040 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2041 2042 The driver can also be built as a module. If so, the module will be 2043 called mena21_wdt. 2044 2045 If unsure select N here. 2046 2047# PPC64 Architecture 2048 2049config PSERIES_WDT 2050 tristate "POWER Architecture Platform Watchdog Timer" 2051 depends on PPC_PSERIES 2052 select WATCHDOG_CORE 2053 help 2054 Driver for virtual watchdog timers provided by PAPR 2055 hypervisors (e.g. PowerVM, KVM). 2056 2057config WATCHDOG_RTAS 2058 tristate "RTAS watchdog" 2059 depends on PPC_RTAS 2060 help 2061 This driver adds watchdog support for the RTAS watchdog. 2062 2063 To compile this driver as a module, choose M here. The module 2064 will be called wdrtas. 2065 2066# RISC-V Architecture 2067 2068config STARFIVE_WATCHDOG 2069 tristate "StarFive Watchdog support" 2070 depends on ARCH_STARFIVE || COMPILE_TEST 2071 select WATCHDOG_CORE 2072 default ARCH_STARFIVE 2073 help 2074 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2075 SoC. This driver can also be built as a module if choose M. 2076 2077# S390 Architecture 2078 2079config DIAG288_WATCHDOG 2080 tristate "System z diag288 Watchdog" 2081 depends on S390 2082 select WATCHDOG_CORE 2083 help 2084 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2085 provide a virtual watchdog timer to their guest that cause a 2086 user define Control Program command to be executed after a 2087 timeout. 2088 LPAR provides a very similar interface. This driver handles 2089 both. 2090 2091 To compile this driver as a module, choose M here. The module 2092 will be called diag288_wdt. 2093 2094# SUPERH (sh + sh64) Architecture 2095 2096config SH_WDT 2097 tristate "SuperH Watchdog" 2098 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2099 select WATCHDOG_CORE 2100 help 2101 This driver adds watchdog support for the integrated watchdog in the 2102 SuperH processors. If you have one of these processors and wish 2103 to have watchdog support enabled, say Y, otherwise say N. 2104 2105 As a side note, saying Y here will automatically boost HZ to 1000 2106 so that the timer has a chance to clear the overflow counter. On 2107 slower systems (such as the SH-2 and SH-3) this will likely yield 2108 some performance issues. As such, the WDT should be avoided here 2109 unless it is absolutely necessary. 2110 2111 To compile this driver as a module, choose M here: the 2112 module will be called shwdt. 2113 2114# SPARC Architecture 2115 2116# SPARC64 Architecture 2117 2118config WATCHDOG_CP1XXX 2119 tristate "CP1XXX Hardware Watchdog support" 2120 depends on SPARC64 && PCI 2121 help 2122 This is the driver for the hardware watchdog timers present on 2123 Sun Microsystems CompactPCI models CP1400 and CP1500. 2124 2125 To compile this driver as a module, choose M here: the 2126 module will be called cpwatchdog. 2127 2128 If you do not have a CompactPCI model CP1400 or CP1500, or 2129 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2130 you should say N to this option. 2131 2132config WATCHDOG_RIO 2133 tristate "RIO Hardware Watchdog support" 2134 depends on SPARC64 && PCI 2135 help 2136 Say Y here to support the hardware watchdog capability on Sun RIO 2137 machines. The watchdog timeout period is normally one minute but 2138 can be changed with a boot-time parameter. 2139 2140config WATCHDOG_SUN4V 2141 tristate "Sun4v Watchdog support" 2142 select WATCHDOG_CORE 2143 depends on SPARC64 2144 help 2145 Say Y here to support the hypervisor watchdog capability embedded 2146 in the SPARC sun4v architecture. 2147 2148 To compile this driver as a module, choose M here. The module will 2149 be called sun4v_wdt. 2150 2151# XTENSA Architecture 2152 2153# Xen Architecture 2154 2155config XEN_WDT 2156 tristate "Xen Watchdog support" 2157 depends on XEN 2158 select WATCHDOG_CORE 2159 help 2160 Say Y here to support the hypervisor watchdog capability provided 2161 by Xen 4.0 and newer. The watchdog timeout period is normally one 2162 minute but can be changed with a boot-time parameter. 2163 2164config UML_WATCHDOG 2165 tristate "UML watchdog" 2166 depends on UML || COMPILE_TEST 2167 2168# 2169# ISA-based Watchdog Cards 2170# 2171 2172comment "ISA-based Watchdog Cards" 2173 depends on ISA 2174 2175config PCWATCHDOG 2176 tristate "Berkshire Products ISA-PC Watchdog" 2177 depends on ISA 2178 help 2179 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2180 This card simply watches your kernel to make sure it doesn't freeze, 2181 and if it does, it reboots your computer after a certain amount of 2182 time. This driver is like the WDT501 driver but for different 2183 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2184 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2185 2186 To compile this driver as a module, choose M here: the 2187 module will be called pcwd. 2188 2189 Most people will say N. 2190 2191config MIXCOMWD 2192 tristate "Mixcom Watchdog" 2193 depends on ISA 2194 help 2195 This is a driver for the Mixcom hardware watchdog cards. This 2196 watchdog simply watches your kernel to make sure it doesn't freeze, 2197 and if it does, it reboots your computer after a certain amount of 2198 time. 2199 2200 To compile this driver as a module, choose M here: the 2201 module will be called mixcomwd. 2202 2203 Most people will say N. 2204 2205config WDT 2206 tristate "WDT Watchdog timer" 2207 depends on ISA 2208 help 2209 If you have a WDT500P or WDT501P watchdog board, say Y here, 2210 otherwise N. It is not possible to probe for this board, which means 2211 that you have to inform the kernel about the IO port and IRQ that 2212 is needed (you can do this via the io and irq parameters) 2213 2214 To compile this driver as a module, choose M here: the 2215 module will be called wdt. 2216 2217# 2218# PCI-based Watchdog Cards 2219# 2220 2221comment "PCI-based Watchdog Cards" 2222 depends on PCI 2223 2224config PCIPCWATCHDOG 2225 tristate "Berkshire Products PCI-PC Watchdog" 2226 depends on PCI && HAS_IOPORT 2227 help 2228 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2229 This card simply watches your kernel to make sure it doesn't freeze, 2230 and if it does, it reboots your computer after a certain amount of 2231 time. The card can also monitor the internal temperature of the PC. 2232 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2233 2234 To compile this driver as a module, choose M here: the 2235 module will be called pcwd_pci. 2236 2237 Most people will say N. 2238 2239config WDTPCI 2240 tristate "PCI-WDT500/501 Watchdog timer" 2241 depends on PCI && HAS_IOPORT 2242 help 2243 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2244 2245 If you have a PCI-WDT501 watchdog board then you can enable the 2246 temperature sensor by setting the type parameter to 501. 2247 2248 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2249 can do this via the tachometer parameter. Only do this if you have a 2250 fan tachometer actually set up. 2251 2252 To compile this driver as a module, choose M here: the 2253 module will be called wdt_pci. 2254 2255# 2256# USB-based Watchdog Cards 2257# 2258 2259comment "USB-based Watchdog Cards" 2260 depends on USB 2261 2262config USBPCWATCHDOG 2263 tristate "Berkshire Products USB-PC Watchdog" 2264 depends on USB 2265 help 2266 This is the driver for the Berkshire Products USB-PC Watchdog card. 2267 This card simply watches your kernel to make sure it doesn't freeze, 2268 and if it does, it reboots your computer after a certain amount of 2269 time. The card can also monitor the internal temperature of the PC. 2270 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2271 2272 To compile this driver as a module, choose M here: the 2273 module will be called pcwd_usb. 2274 2275 Most people will say N. 2276 2277config KEEMBAY_WATCHDOG 2278 tristate "Intel Keem Bay SoC non-secure watchdog" 2279 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2280 select WATCHDOG_CORE 2281 help 2282 This option enable support for an In-secure watchdog timer driver for 2283 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2284 count unit. An interrupt will be triggered, when the count crosses 2285 the threshold configured in the register. 2286 2287 To compile this driver as a module, choose M here: the 2288 module will be called keembay_wdt. 2289 2290endif # WATCHDOG 2291