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 BD70528_WATCHDOG 172 tristate "ROHM BD70528 PMIC Watchdog" 173 depends on MFD_ROHM_BD70528 174 select WATCHDOG_CORE 175 help 176 Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger 177 cause system reset. 178 179 Say Y here to include support for the ROHM BD70528 watchdog. 180 Alternatively say M to compile the driver as a module, 181 which will be called bd70528_wdt. 182 183config BD957XMUF_WATCHDOG 184 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog" 185 depends on MFD_ROHM_BD957XMUF 186 select WATCHDOG_CORE 187 help 188 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs. 189 These PMIC ICs contain watchdog block which can be configured 190 to toggle reset line if SoC fails to ping watchdog via GPIO. 191 192 Say Y here to include support for the ROHM BD9576 or BD9573 193 watchdog. Alternatively say M to compile the driver as a module, 194 which will be called bd9576_wdt. 195 196config DA9052_WATCHDOG 197 tristate "Dialog DA9052 Watchdog" 198 depends on PMIC_DA9052 || COMPILE_TEST 199 select WATCHDOG_CORE 200 help 201 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 202 cause system reset. 203 204 Say Y here to include support for the DA9052 watchdog. 205 Alternatively say M to compile the driver as a module, 206 which will be called da9052_wdt. 207 208config DA9055_WATCHDOG 209 tristate "Dialog Semiconductor DA9055 Watchdog" 210 depends on MFD_DA9055 || COMPILE_TEST 211 select WATCHDOG_CORE 212 help 213 If you say yes here you get support for watchdog on the Dialog 214 Semiconductor DA9055 PMIC. 215 216 This driver can also be built as a module. If so, the module 217 will be called da9055_wdt. 218 219config DA9063_WATCHDOG 220 tristate "Dialog DA9063 Watchdog" 221 depends on MFD_DA9063 || COMPILE_TEST 222 select WATCHDOG_CORE 223 help 224 Support for the watchdog in the DA9063 PMIC. 225 226 This driver can be built as a module. The module name is da9063_wdt. 227 228config DA9062_WATCHDOG 229 tristate "Dialog DA9062/61 Watchdog" 230 depends on MFD_DA9062 || COMPILE_TEST 231 depends on I2C 232 select WATCHDOG_CORE 233 help 234 Support for the watchdog in the DA9062 and DA9061 PMICs. 235 236 This driver can be built as a module. The module name is da9062_wdt. 237 238config GPIO_WATCHDOG 239 tristate "Watchdog device controlled through GPIO-line" 240 depends on OF_GPIO 241 select WATCHDOG_CORE 242 help 243 If you say yes here you get support for watchdog device 244 controlled through GPIO-line. 245 246config GPIO_WATCHDOG_ARCH_INITCALL 247 bool "Register the watchdog as early as possible" 248 depends on GPIO_WATCHDOG=y 249 help 250 In some situations, the default initcall level (module_init) 251 in not early enough in the boot process to avoid the watchdog 252 to be triggered. 253 If you say yes here, the initcall level would be raised to 254 arch_initcall. 255 If in doubt, say N. 256 257config MENF21BMC_WATCHDOG 258 tristate "MEN 14F021P00 BMC Watchdog" 259 depends on MFD_MENF21BMC || COMPILE_TEST 260 depends on I2C 261 select WATCHDOG_CORE 262 help 263 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 264 265 This driver can also be built as a module. If so the module 266 will be called menf21bmc_wdt. 267 268config MENZ069_WATCHDOG 269 tristate "MEN 16Z069 Watchdog" 270 depends on MCB 271 select WATCHDOG_CORE 272 help 273 Say Y here to include support for the MEN 16Z069 Watchdog. 274 275 This driver can also be built as a module. If so the module 276 will be called menz069_wdt. 277 278config WDAT_WDT 279 tristate "ACPI Watchdog Action Table (WDAT)" 280 depends on ACPI 281 select WATCHDOG_CORE 282 select ACPI_WATCHDOG 283 help 284 This driver adds support for systems with ACPI Watchdog Action 285 Table (WDAT) table. Servers typically have this but it can be 286 found on some desktop machines as well. This driver will take 287 over the native iTCO watchdog driver found on many Intel CPUs. 288 289 To compile this driver as module, choose M here: the module will 290 be called wdat_wdt. 291 292config WM831X_WATCHDOG 293 tristate "WM831x watchdog" 294 depends on MFD_WM831X 295 select WATCHDOG_CORE 296 help 297 Support for the watchdog in the WM831x AudioPlus PMICs. When 298 the watchdog triggers the system will be reset. 299 300config WM8350_WATCHDOG 301 tristate "WM8350 watchdog" 302 depends on MFD_WM8350 303 select WATCHDOG_CORE 304 help 305 Support for the watchdog in the WM8350 AudioPlus PMIC. When 306 the watchdog triggers the system will be reset. 307 308config XILINX_WATCHDOG 309 tristate "Xilinx Watchdog timer" 310 depends on HAS_IOMEM 311 select WATCHDOG_CORE 312 help 313 Watchdog driver for the xps_timebase_wdt IP core. 314 315 To compile this driver as a module, choose M here: the 316 module will be called of_xilinx_wdt. 317 318config ZIIRAVE_WATCHDOG 319 tristate "Zodiac RAVE Watchdog Timer" 320 depends on I2C 321 select WATCHDOG_CORE 322 help 323 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 324 Processor. 325 326 To compile this driver as a module, choose M here: the 327 module will be called ziirave_wdt. 328 329config RAVE_SP_WATCHDOG 330 tristate "RAVE SP Watchdog timer" 331 depends on RAVE_SP_CORE 332 depends on NVMEM || !NVMEM 333 select WATCHDOG_CORE 334 help 335 Support for the watchdog on RAVE SP device. 336 337config MLX_WDT 338 tristate "Mellanox Watchdog" 339 depends on MELLANOX_PLATFORM 340 select WATCHDOG_CORE 341 select REGMAP 342 help 343 This is the driver for the hardware watchdog on Mellanox systems. 344 If you are going to use it, say Y here, otherwise N. 345 This driver can be used together with the watchdog daemon. 346 It can also watch your kernel to make sure it doesn't freeze, 347 and if it does, it reboots your system after a certain amount of 348 time. 349 350 To compile this driver as a module, choose M here: the 351 module will be called mlx-wdt. 352 353config SL28CPLD_WATCHDOG 354 tristate "Kontron sl28cpld Watchdog" 355 depends on MFD_SL28CPLD || COMPILE_TEST 356 select WATCHDOG_CORE 357 help 358 Say Y here to include support for the watchdog timer 359 on the Kontron sl28 CPLD. 360 361 To compile this driver as a module, choose M here: the 362 module will be called sl28cpld_wdt. 363 364# ALPHA Architecture 365 366# ARM Architecture 367 368config ARM_SP805_WATCHDOG 369 tristate "ARM SP805 Watchdog" 370 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 371 select WATCHDOG_CORE 372 help 373 ARM Primecell SP805 Watchdog timer. This will reboot your system when 374 the timeout is reached. 375 376config ARM_SBSA_WATCHDOG 377 tristate "ARM SBSA Generic Watchdog" 378 depends on ARM64 379 depends on ARM_ARCH_TIMER 380 select WATCHDOG_CORE 381 help 382 ARM SBSA Generic Watchdog has two stage timeouts: 383 the first signal (WS0) is for alerting the system by interrupt, 384 the second one (WS1) is a real hardware reset. 385 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 386 387 This driver can operate ARM SBSA Generic Watchdog as a single stage 388 or a two stages watchdog, it depends on the module parameter "action". 389 390 Note: the maximum timeout in the two stages mode is half of that in 391 the single stage mode. 392 393 To compile this driver as module, choose M here: The module 394 will be called sbsa_gwdt. 395 396config ARMADA_37XX_WATCHDOG 397 tristate "Armada 37xx watchdog" 398 depends on ARCH_MVEBU || COMPILE_TEST 399 depends on HAS_IOMEM 400 select MFD_SYSCON 401 select WATCHDOG_CORE 402 help 403 Say Y here to include support for the watchdog timer found on 404 Marvell Armada 37xx SoCs. 405 To compile this driver as a module, choose M here: the 406 module will be called armada_37xx_wdt. 407 408config ASM9260_WATCHDOG 409 tristate "Alphascale ASM9260 watchdog" 410 depends on MACH_ASM9260 || COMPILE_TEST 411 depends on OF 412 select WATCHDOG_CORE 413 select RESET_CONTROLLER 414 help 415 Watchdog timer embedded into Alphascale asm9260 chips. This will 416 reboot your system when the timeout is reached. 417 418config AT91RM9200_WATCHDOG 419 tristate "AT91RM9200 watchdog" 420 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 421 help 422 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 423 system when the timeout is reached. 424 425config AT91SAM9X_WATCHDOG 426 tristate "AT91SAM9X / AT91CAP9 watchdog" 427 depends on ARCH_AT91 || COMPILE_TEST 428 select WATCHDOG_CORE 429 help 430 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 431 reboot your system when the timeout is reached. 432 433config SAMA5D4_WATCHDOG 434 tristate "Atmel SAMA5D4 Watchdog Timer" 435 depends on ARCH_AT91 || COMPILE_TEST 436 select WATCHDOG_CORE 437 help 438 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 439 Its Watchdog Timer Mode Register can be written more than once. 440 This will reboot your system when the timeout is reached. 441 442config CADENCE_WATCHDOG 443 tristate "Cadence Watchdog Timer" 444 depends on HAS_IOMEM 445 select WATCHDOG_CORE 446 help 447 Say Y here if you want to include support for the watchdog 448 timer in the Xilinx Zynq. 449 450config 21285_WATCHDOG 451 tristate "DC21285 watchdog" 452 depends on FOOTBRIDGE 453 help 454 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 455 here if you wish to use this. Alternatively say M to compile the 456 driver as a module, which will be called wdt285. 457 458 This driver does not work on all machines. In particular, early CATS 459 boards have hardware problems that will cause the machine to simply 460 lock up if the watchdog fires. 461 462 "If in doubt, leave it out" - say N. 463 464config 977_WATCHDOG 465 tristate "NetWinder WB83C977 watchdog" 466 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 467 help 468 Say Y here to include support for the WB977 watchdog included in 469 NetWinder machines. Alternatively say M to compile the driver as 470 a module, which will be called wdt977. 471 472 Not sure? It's safe to say N. 473 474config FTWDT010_WATCHDOG 475 tristate "Faraday Technology FTWDT010 watchdog" 476 depends on ARM || COMPILE_TEST 477 select WATCHDOG_CORE 478 default ARCH_GEMINI 479 help 480 Say Y here if to include support for the Faraday Technology 481 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 482 family of devices. 483 484 To compile this driver as a module, choose M here: the 485 module will be called ftwdt010_wdt. 486 487config IXP4XX_WATCHDOG 488 tristate "IXP4xx Watchdog" 489 depends on ARCH_IXP4XX 490 help 491 Say Y here if to include support for the watchdog timer 492 in the Intel IXP4xx network processors. This driver can 493 be built as a module by choosing M. The module will 494 be called ixp4xx_wdt. 495 496 Note: The internal IXP4xx watchdog does a soft CPU reset 497 which doesn't reset any peripherals. There are circumstances 498 where the watchdog will fail to reset the board correctly 499 (e.g., if the boot ROM is in an unreadable state). 500 501 Say N if you are unsure. 502 503config S3C2410_WATCHDOG 504 tristate "S3C2410 Watchdog" 505 depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \ 506 COMPILE_TEST 507 select WATCHDOG_CORE 508 select MFD_SYSCON if ARCH_EXYNOS 509 help 510 Watchdog timer block in the Samsung SoCs. This will reboot 511 the system when the timer expires with the watchdog enabled. 512 513 The driver is limited by the speed of the system's PCLK 514 signal, so with reasonably fast systems (PCLK around 50-66MHz) 515 then watchdog intervals of over approximately 20seconds are 516 unavailable. 517 518 The driver can be built as a module by choosing M, and will 519 be called s3c2410_wdt 520 521config SA1100_WATCHDOG 522 tristate "SA1100/PXA2xx watchdog" 523 depends on ARCH_SA1100 || ARCH_PXA 524 help 525 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 526 reboot your system when timeout is reached. 527 528 NOTE: once enabled, this timer cannot be disabled. 529 530 To compile this driver as a module, choose M here: the 531 module will be called sa1100_wdt. 532 533config DW_WATCHDOG 534 tristate "Synopsys DesignWare watchdog" 535 depends on HAS_IOMEM 536 select WATCHDOG_CORE 537 help 538 Say Y here if to include support for the Synopsys DesignWare 539 watchdog timer found in many chips. 540 To compile this driver as a module, choose M here: the 541 module will be called dw_wdt. 542 543config EP93XX_WATCHDOG 544 tristate "EP93xx Watchdog" 545 depends on ARCH_EP93XX || COMPILE_TEST 546 select WATCHDOG_CORE 547 help 548 Say Y here if to include support for the watchdog timer 549 embedded in the Cirrus Logic EP93xx family of devices. 550 551 To compile this driver as a module, choose M here: the 552 module will be called ep93xx_wdt. 553 554config OMAP_WATCHDOG 555 tristate "OMAP Watchdog" 556 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 557 select WATCHDOG_CORE 558 help 559 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 560 Say 'Y' here to enable the 561 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 562 563config PNX4008_WATCHDOG 564 tristate "LPC32XX Watchdog" 565 depends on ARCH_LPC32XX || COMPILE_TEST 566 select WATCHDOG_CORE 567 help 568 Say Y here if to include support for the watchdog timer 569 in the LPC32XX processor. 570 This driver can be built as a module by choosing M. The module 571 will be called pnx4008_wdt. 572 573 Say N if you are unsure. 574 575config IOP_WATCHDOG 576 tristate "IOP Watchdog" 577 depends on ARCH_IOP13XX 578 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 579 help 580 Say Y here if to include support for the watchdog timer 581 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 582 be built as a module by choosing M. The module will 583 be called iop_wdt. 584 585 Note: The IOP13XX watchdog does an Internal Bus Reset which will 586 affect both cores and the peripherals of the IOP. The ATU-X 587 and/or ATUe configuration registers will remain intact, but if 588 operating as an Root Complex and/or Central Resource, the PCI-X 589 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 590 591config DAVINCI_WATCHDOG 592 tristate "DaVinci watchdog" 593 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 594 select WATCHDOG_CORE 595 help 596 Say Y here if to include support for the watchdog timer 597 in the DaVinci DM644x/DM646x or Keystone processors. 598 To compile this driver as a module, choose M here: the 599 module will be called davinci_wdt. 600 601 NOTE: once enabled, this timer cannot be disabled. 602 Say N if you are unsure. 603 604config K3_RTI_WATCHDOG 605 tristate "Texas Instruments K3 RTI watchdog" 606 depends on ARCH_K3 || COMPILE_TEST 607 select WATCHDOG_CORE 608 help 609 Say Y here if you want to include support for the K3 watchdog 610 timer (RTI module) available in the K3 generation of processors. 611 612config ORION_WATCHDOG 613 tristate "Orion watchdog" 614 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 615 depends on ARM 616 select WATCHDOG_CORE 617 help 618 Say Y here if to include support for the watchdog timer 619 in the Marvell Orion5x and Kirkwood ARM SoCs. 620 To compile this driver as a module, choose M here: the 621 module will be called orion_wdt. 622 623config RN5T618_WATCHDOG 624 tristate "Ricoh RN5T618 watchdog" 625 depends on MFD_RN5T618 || COMPILE_TEST 626 select WATCHDOG_CORE 627 help 628 If you say yes here you get support for watchdog on the Ricoh 629 RN5T618 PMIC. 630 631 This driver can also be built as a module. If so, the module 632 will be called rn5t618_wdt. 633 634config SUNXI_WATCHDOG 635 tristate "Allwinner SoCs watchdog support" 636 depends on ARCH_SUNXI || COMPILE_TEST 637 select WATCHDOG_CORE 638 help 639 Say Y here to include support for the watchdog timer 640 in Allwinner SoCs. 641 To compile this driver as a module, choose M here: the 642 module will be called sunxi_wdt. 643 644config NPCM7XX_WATCHDOG 645 tristate "Nuvoton NPCM750 watchdog" 646 depends on ARCH_NPCM || COMPILE_TEST 647 default y if ARCH_NPCM7XX 648 select WATCHDOG_CORE 649 help 650 Say Y here to include Watchdog timer support for the 651 watchdog embedded into the NPCM7xx. 652 This watchdog is used to reset the system and thus cannot be 653 compiled as a module. 654 655config TWL4030_WATCHDOG 656 tristate "TWL4030 Watchdog" 657 depends on TWL4030_CORE 658 select WATCHDOG_CORE 659 help 660 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 661 watchdog timer support for TWL4030 chips. 662 663config STMP3XXX_RTC_WATCHDOG 664 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 665 depends on RTC_DRV_STMP || COMPILE_TEST 666 select WATCHDOG_CORE 667 help 668 Say Y here to include support for the watchdog timer inside 669 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 670 To compile this driver as a module, choose M here: the 671 module will be called stmp3xxx_rtc_wdt. 672 673config TS4800_WATCHDOG 674 tristate "TS-4800 Watchdog" 675 depends on HAS_IOMEM && OF 676 depends on SOC_IMX51 || COMPILE_TEST 677 select WATCHDOG_CORE 678 select MFD_SYSCON 679 help 680 Technologic Systems TS-4800 has watchdog timer implemented in 681 an external FPGA. Say Y here if you want to support for the 682 watchdog timer on TS-4800 board. 683 684config TS72XX_WATCHDOG 685 tristate "TS-72XX SBC Watchdog" 686 depends on MACH_TS72XX || COMPILE_TEST 687 select WATCHDOG_CORE 688 help 689 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 690 watchdog timer implemented in a external CPLD chip. Say Y here 691 if you want to support for the watchdog timer on TS-72XX boards. 692 693 To compile this driver as a module, choose M here: the 694 module will be called ts72xx_wdt. 695 696config MAX63XX_WATCHDOG 697 tristate "Max63xx watchdog" 698 depends on HAS_IOMEM 699 select WATCHDOG_CORE 700 help 701 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 702 703config MAX77620_WATCHDOG 704 tristate "Maxim Max77620 Watchdog Timer" 705 depends on MFD_MAX77620 || COMPILE_TEST 706 select WATCHDOG_CORE 707 help 708 This is the driver for the Max77620 watchdog timer. 709 Say 'Y' here to enable the watchdog timer support for 710 MAX77620 chips. To compile this driver as a module, 711 choose M here: the module will be called max77620_wdt. 712 713config IMX2_WDT 714 tristate "IMX2+ Watchdog" 715 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 716 select REGMAP_MMIO 717 select WATCHDOG_CORE 718 help 719 This is the driver for the hardware watchdog 720 on the Freescale IMX2 and later processors. 721 If you have one of these processors and wish to have 722 watchdog support enabled, say Y, otherwise say N. 723 724 To compile this driver as a module, choose M here: the 725 module will be called imx2_wdt. 726 727config IMX_SC_WDT 728 tristate "IMX SC Watchdog" 729 depends on HAVE_ARM_SMCCC 730 depends on IMX_SCU 731 select WATCHDOG_CORE 732 help 733 This is the driver for the system controller watchdog 734 on the NXP i.MX SoCs with system controller inside, the 735 watchdog driver will call ARM SMC API and trap into 736 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 737 will request system controller to execute the operations. 738 If you have one of these processors and wish to have 739 watchdog support enabled, say Y, otherwise say N. 740 741 To compile this driver as a module, choose M here: the 742 module will be called imx_sc_wdt. 743 744config IMX7ULP_WDT 745 tristate "IMX7ULP Watchdog" 746 depends on ARCH_MXC || COMPILE_TEST 747 select WATCHDOG_CORE 748 help 749 This is the driver for the hardware watchdog on the Freescale 750 IMX7ULP and later processors. If you have one of these 751 processors and wish to have watchdog support enabled, 752 say Y, otherwise say N. 753 754 To compile this driver as a module, choose M here: the 755 module will be called imx7ulp_wdt. 756 757config UX500_WATCHDOG 758 tristate "ST-Ericsson Ux500 watchdog" 759 depends on MFD_DB8500_PRCMU 760 select WATCHDOG_CORE 761 default y 762 help 763 Say Y here to include Watchdog timer support for the watchdog 764 existing in the prcmu of ST-Ericsson Ux500 series platforms. 765 766 To compile this driver as a module, choose M here: the 767 module will be called ux500_wdt. 768 769config RETU_WATCHDOG 770 tristate "Retu watchdog" 771 depends on MFD_RETU 772 select WATCHDOG_CORE 773 help 774 Retu watchdog driver for Nokia Internet Tablets (770, N800, 775 N810). At least on N800 the watchdog cannot be disabled, so 776 this driver is essential and you should enable it. 777 778 To compile this driver as a module, choose M here: the 779 module will be called retu_wdt. 780 781config MOXART_WDT 782 tristate "MOXART watchdog" 783 depends on ARCH_MOXART || COMPILE_TEST 784 help 785 Say Y here to include Watchdog timer support for the watchdog 786 existing on the MOXA ART SoC series platforms. 787 788 To compile this driver as a module, choose M here: the 789 module will be called moxart_wdt. 790 791config ST_LPC_WATCHDOG 792 tristate "STMicroelectronics LPC Watchdog" 793 depends on ARCH_STI || COMPILE_TEST 794 depends on OF 795 select WATCHDOG_CORE 796 help 797 Say Y here to include STMicroelectronics Low Power Controller 798 (LPC) based Watchdog timer support. 799 800 To compile this driver as a module, choose M here: the 801 module will be called st_lpc_wdt. 802 803config TEGRA_WATCHDOG 804 tristate "Tegra watchdog" 805 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 806 select WATCHDOG_CORE 807 help 808 Say Y here to include support for the watchdog timer 809 embedded in NVIDIA Tegra SoCs. 810 811 To compile this driver as a module, choose M here: the 812 module will be called tegra_wdt. 813 814config QCOM_WDT 815 tristate "QCOM watchdog" 816 depends on HAS_IOMEM 817 depends on ARCH_QCOM || COMPILE_TEST 818 select WATCHDOG_CORE 819 help 820 Say Y here to include Watchdog timer support for the watchdog found 821 on QCOM chipsets. Currently supported targets are the MSM8960, 822 APQ8064, and IPQ8064. 823 824 To compile this driver as a module, choose M here: the 825 module will be called qcom_wdt. 826 827config MESON_GXBB_WATCHDOG 828 tristate "Amlogic Meson GXBB SoCs watchdog support" 829 depends on ARCH_MESON || COMPILE_TEST 830 select WATCHDOG_CORE 831 help 832 Say Y here to include support for the watchdog timer 833 in Amlogic Meson GXBB SoCs. 834 To compile this driver as a module, choose M here: the 835 module will be called meson_gxbb_wdt. 836 837config MESON_WATCHDOG 838 tristate "Amlogic Meson SoCs watchdog support" 839 depends on ARCH_MESON || COMPILE_TEST 840 select WATCHDOG_CORE 841 help 842 Say Y here to include support for the watchdog timer 843 in Amlogic Meson SoCs. 844 To compile this driver as a module, choose M here: the 845 module will be called meson_wdt. 846 847config MEDIATEK_WATCHDOG 848 tristate "Mediatek SoCs watchdog support" 849 depends on ARCH_MEDIATEK || COMPILE_TEST 850 select WATCHDOG_CORE 851 select RESET_CONTROLLER 852 help 853 Say Y here to include support for the watchdog timer 854 in Mediatek SoCs. 855 To compile this driver as a module, choose M here: the 856 module will be called mtk_wdt. 857 858config DIGICOLOR_WATCHDOG 859 tristate "Conexant Digicolor SoCs watchdog support" 860 depends on ARCH_DIGICOLOR || COMPILE_TEST 861 select WATCHDOG_CORE 862 help 863 Say Y here to include support for the watchdog timer 864 in Conexant Digicolor SoCs. 865 To compile this driver as a module, choose M here: the 866 module will be called digicolor_wdt. 867 868config ARM_SMC_WATCHDOG 869 tristate "ARM Secure Monitor Call based watchdog support" 870 depends on ARM || ARM64 871 depends on OF 872 depends on HAVE_ARM_SMCCC 873 select WATCHDOG_CORE 874 help 875 Say Y here to include support for a watchdog timer 876 implemented by the EL3 Secure Monitor on ARM platforms. 877 Requires firmware support. 878 To compile this driver as a module, choose M here: the 879 module will be called arm_smc_wdt. 880 881config LPC18XX_WATCHDOG 882 tristate "LPC18xx/43xx Watchdog" 883 depends on ARCH_LPC18XX || COMPILE_TEST 884 depends on HAS_IOMEM 885 select WATCHDOG_CORE 886 help 887 Say Y here if to include support for the watchdog timer 888 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 889 processors. 890 To compile this driver as a module, choose M here: the 891 module will be called lpc18xx_wdt. 892 893config RENESAS_WDT 894 tristate "Renesas WDT Watchdog" 895 depends on ARCH_RENESAS || COMPILE_TEST 896 select WATCHDOG_CORE 897 help 898 This driver adds watchdog support for the integrated watchdogs in the 899 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 900 901config RENESAS_RZAWDT 902 tristate "Renesas RZ/A WDT Watchdog" 903 depends on ARCH_RENESAS || COMPILE_TEST 904 select WATCHDOG_CORE 905 help 906 This driver adds watchdog support for the integrated watchdogs in the 907 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 908 909config ASPEED_WATCHDOG 910 tristate "Aspeed BMC watchdog support" 911 depends on ARCH_ASPEED || COMPILE_TEST 912 select WATCHDOG_CORE 913 help 914 Say Y here to include support for the watchdog timer 915 in Aspeed BMC SoCs. 916 917 This driver is required to reboot the SoC. 918 919 To compile this driver as a module, choose M here: the 920 module will be called aspeed_wdt. 921 922config STM32_WATCHDOG 923 tristate "STM32 Independent WatchDoG (IWDG) support" 924 depends on ARCH_STM32 925 select WATCHDOG_CORE 926 default y 927 help 928 Say Y here to include support for the watchdog timer 929 in stm32 SoCs. 930 931 To compile this driver as a module, choose M here: the 932 module will be called stm32_iwdg. 933 934config STPMIC1_WATCHDOG 935 tristate "STPMIC1 PMIC watchdog support" 936 depends on MFD_STPMIC1 937 select WATCHDOG_CORE 938 help 939 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 940 If the watchdog timer expires, stpmic1 will shut down all its power 941 supplies. 942 943 To compile this driver as a module, choose M here: the 944 module will be called spmic1_wdt. 945 946config UNIPHIER_WATCHDOG 947 tristate "UniPhier watchdog support" 948 depends on ARCH_UNIPHIER || COMPILE_TEST 949 depends on OF && MFD_SYSCON 950 select WATCHDOG_CORE 951 help 952 Say Y here to include support watchdog timer embedded 953 into the UniPhier system. 954 955 To compile this driver as a module, choose M here: the 956 module will be called uniphier_wdt. 957 958config RTD119X_WATCHDOG 959 bool "Realtek RTD119x/RTD129x watchdog support" 960 depends on ARCH_REALTEK || COMPILE_TEST 961 depends on OF 962 select WATCHDOG_CORE 963 default ARCH_REALTEK 964 help 965 Say Y here to include support for the watchdog timer in 966 Realtek RTD1295 SoCs. 967 968config SPRD_WATCHDOG 969 tristate "Spreadtrum watchdog support" 970 depends on ARCH_SPRD || COMPILE_TEST 971 select WATCHDOG_CORE 972 help 973 Say Y here to include watchdog timer supported 974 by Spreadtrum system. 975 976config PM8916_WATCHDOG 977 tristate "QCOM PM8916 pmic watchdog" 978 depends on OF && MFD_SPMI_PMIC 979 select WATCHDOG_CORE 980 help 981 Say Y here to include support watchdog timer embedded into the 982 pm8916 module. 983 984config VISCONTI_WATCHDOG 985 tristate "Toshiba Visconti series watchdog support" 986 depends on ARCH_VISCONTI || COMPILE_TEST 987 select WATCHDOG_CORE 988 help 989 Say Y here to include support for the watchdog timer in Toshiba 990 Visconti SoCs. 991 992config MSC313E_WATCHDOG 993 tristate "MStar MSC313e watchdog" 994 depends on ARCH_MSTARV7 || COMPILE_TEST 995 select WATCHDOG_CORE 996 help 997 Say Y here to include support for the Watchdog timer embedded 998 into MStar MSC313e chips. This will reboot your system when the 999 timeout is reached. 1000 1001 To compile this driver as a module, choose M here: the 1002 module will be called msc313e_wdt. 1003 1004# X86 (i386 + ia64 + x86_64) Architecture 1005 1006config ACQUIRE_WDT 1007 tristate "Acquire SBC Watchdog Timer" 1008 depends on X86 1009 help 1010 This is the driver for the hardware watchdog on Single Board 1011 Computers produced by Acquire Inc (and others). This watchdog 1012 simply watches your kernel to make sure it doesn't freeze, and if 1013 it does, it reboots your computer after a certain amount of time. 1014 1015 To compile this driver as a module, choose M here: the 1016 module will be called acquirewdt. 1017 1018 Most people will say N. 1019 1020config ADVANTECH_WDT 1021 tristate "Advantech SBC Watchdog Timer" 1022 depends on X86 1023 help 1024 If you are configuring a Linux kernel for the Advantech single-board 1025 computer, say `Y' here to support its built-in watchdog timer 1026 feature. More information can be found at 1027 <https://www.advantech.com.tw/products/> 1028 1029config ALIM1535_WDT 1030 tristate "ALi M1535 PMU Watchdog Timer" 1031 depends on X86 && PCI 1032 help 1033 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1034 1035 To compile this driver as a module, choose M here: the 1036 module will be called alim1535_wdt. 1037 1038 Most people will say N. 1039 1040config ALIM7101_WDT 1041 tristate "ALi M7101 PMU Computer Watchdog" 1042 depends on PCI 1043 help 1044 This is the driver for the hardware watchdog on the ALi M7101 PMU 1045 as used in the x86 Cobalt servers and also found in some 1046 SPARC Netra servers too. 1047 1048 To compile this driver as a module, choose M here: the 1049 module will be called alim7101_wdt. 1050 1051 Most people will say N. 1052 1053config EBC_C384_WDT 1054 tristate "WinSystems EBC-C384 Watchdog Timer" 1055 depends on X86 1056 select ISA_BUS_API 1057 select WATCHDOG_CORE 1058 help 1059 Enables watchdog timer support for the watchdog timer on the 1060 WinSystems EBC-C384 motherboard. The timeout may be configured via 1061 the timeout module parameter. 1062 1063config F71808E_WDT 1064 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1065 depends on X86 1066 help 1067 This is the driver for the hardware watchdog on the Fintek F71808E, 1068 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1069 F81866 Super I/O controllers. 1070 1071 You can compile this driver directly into the kernel, or use 1072 it as a module. The module will be called f71808e_wdt. 1073 1074config SP5100_TCO 1075 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1076 depends on X86 && PCI 1077 select WATCHDOG_CORE 1078 help 1079 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1080 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1081 the machine after its expiration. The expiration time can be 1082 configured with the "heartbeat" parameter. 1083 1084 To compile this driver as a module, choose M here: the 1085 module will be called sp5100_tco. 1086 1087config GEODE_WDT 1088 tristate "AMD Geode CS5535/CS5536 Watchdog" 1089 depends on CS5535_MFGPT 1090 help 1091 This driver enables a watchdog capability built into the 1092 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1093 processors. This watchdog watches your kernel to make sure 1094 it doesn't freeze, and if it does, it reboots your computer after 1095 a certain amount of time. 1096 1097 You can compile this driver directly into the kernel, or use 1098 it as a module. The module will be called geodewdt. 1099 1100config SC520_WDT 1101 tristate "AMD Elan SC520 processor Watchdog" 1102 depends on MELAN || COMPILE_TEST 1103 help 1104 This is the driver for the hardware watchdog built in to the 1105 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1106 This watchdog simply watches your kernel to make sure it doesn't 1107 freeze, and if it does, it reboots your computer after a certain 1108 amount of time. 1109 1110 You can compile this driver directly into the kernel, or use 1111 it as a module. The module will be called sc520_wdt. 1112 1113config SBC_FITPC2_WATCHDOG 1114 tristate "Compulab SBC-FITPC2 watchdog" 1115 depends on X86 1116 help 1117 This is the driver for the built-in watchdog timer on the fit-PC2, 1118 fit-PC2i, CM-iAM single-board computers made by Compulab. 1119 1120 It's possible to enable the watchdog timer either from BIOS (F2) or 1121 from booted Linux. 1122 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1123 operational range. 1124 1125 Entering BIOS setup temporarily disables watchdog operation regardless 1126 of current state, so system will not be restarted while user is in 1127 BIOS setup. 1128 1129 Once the watchdog is enabled the system will be restarted every 1130 "Watchdog Timer Value" period, so to prevent it user can restart or 1131 disable the watchdog. 1132 1133 To compile this driver as a module, choose M here: the 1134 module will be called sbc_fitpc2_wdt. 1135 1136 Most people will say N. 1137 1138config EUROTECH_WDT 1139 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1140 depends on X86 1141 help 1142 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1143 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1144 information are at <http://www.eurotech.it/>. 1145 1146config IB700_WDT 1147 tristate "IB700 SBC Watchdog Timer" 1148 depends on X86 1149 help 1150 This is the driver for the hardware watchdog on the IB700 Single 1151 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1152 watchdog simply watches your kernel to make sure it doesn't freeze, 1153 and if it does, it reboots your computer after a certain amount of time. 1154 1155 This driver is like the WDT501 driver but for slightly different 1156 hardware. 1157 1158 To compile this driver as a module, choose M here: the 1159 module will be called ib700wdt. 1160 1161 Most people will say N. 1162 1163config IBMASR 1164 tristate "IBM Automatic Server Restart" 1165 depends on X86 1166 help 1167 This is the driver for the IBM Automatic Server Restart watchdog 1168 timer built-in into some eServer xSeries machines. 1169 1170 To compile this driver as a module, choose M here: the 1171 module will be called ibmasr. 1172 1173config WAFER_WDT 1174 tristate "ICP Single Board Computer Watchdog Timer" 1175 depends on X86 1176 help 1177 This is a driver for the hardware watchdog on the ICP Single 1178 Board Computer. This driver is working on (at least) the following 1179 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1180 1181 To compile this driver as a module, choose M here: the 1182 module will be called wafer5823wdt. 1183 1184config I6300ESB_WDT 1185 tristate "Intel 6300ESB Timer/Watchdog" 1186 depends on PCI 1187 select WATCHDOG_CORE 1188 help 1189 Hardware driver for the watchdog timer built into the Intel 1190 6300ESB controller hub. 1191 1192 To compile this driver as a module, choose M here: the 1193 module will be called i6300esb. 1194 1195config IE6XX_WDT 1196 tristate "Intel Atom E6xx Watchdog" 1197 depends on X86 && PCI 1198 select WATCHDOG_CORE 1199 select MFD_CORE 1200 select LPC_SCH 1201 help 1202 Hardware driver for the watchdog timer built into the Intel 1203 Atom E6XX (TunnelCreek) processor. 1204 1205 To compile this driver as a module, choose M here: the 1206 module will be called ie6xx_wdt. 1207 1208config INTEL_MID_WATCHDOG 1209 tristate "Intel MID Watchdog Timer" 1210 depends on X86_INTEL_MID 1211 select WATCHDOG_CORE 1212 help 1213 Watchdog timer driver built into the Intel SCU for Intel MID 1214 Platforms. 1215 1216 This driver currently supports only the watchdog evolution 1217 implementation in SCU, available for Merrifield generation. 1218 1219 To compile this driver as a module, choose M here. 1220 1221config ITCO_WDT 1222 tristate "Intel TCO Timer/Watchdog" 1223 depends on (X86 || IA64) && PCI 1224 select WATCHDOG_CORE 1225 depends on I2C || I2C=n 1226 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1227 select LPC_ICH if !EXPERT 1228 select I2C_I801 if !EXPERT && I2C 1229 help 1230 Hardware driver for the intel TCO timer based watchdog devices. 1231 These drivers are included in the Intel 82801 I/O Controller 1232 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1233 controller hub. 1234 1235 The TCO (Total Cost of Ownership) timer is a watchdog timer 1236 that will reboot the machine after its second expiration. The 1237 expiration time can be configured with the "heartbeat" parameter. 1238 1239 On some motherboards the driver may fail to reset the chipset's 1240 NO_REBOOT flag which prevents the watchdog from rebooting the 1241 machine. If this is the case you will get a kernel message like 1242 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1243 1244 To compile this driver as a module, choose M here: the 1245 module will be called iTCO_wdt. 1246 1247config ITCO_VENDOR_SUPPORT 1248 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1249 depends on ITCO_WDT 1250 help 1251 Add vendor specific support to the intel TCO timer based watchdog 1252 devices. At this moment we only have additional support for some 1253 SuperMicro Inc. motherboards. 1254 1255config IT8712F_WDT 1256 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1257 depends on X86 1258 help 1259 This is the driver for the built-in watchdog timer on the IT8712F 1260 Super I/0 chipset used on many motherboards. 1261 1262 If the driver does not work, then make sure that the game port in 1263 the BIOS is enabled. 1264 1265 To compile this driver as a module, choose M here: the 1266 module will be called it8712f_wdt. 1267 1268config IT87_WDT 1269 tristate "IT87 Watchdog Timer" 1270 depends on X86 1271 select WATCHDOG_CORE 1272 help 1273 This is the driver for the hardware watchdog on the ITE IT8607, 1274 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1275 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1276 IT8783 Super I/O chips. 1277 1278 This watchdog simply watches your kernel to make sure it doesn't 1279 freeze, and if it does, it reboots your computer after a certain 1280 amount of time. 1281 1282 To compile this driver as a module, choose M here: the module will 1283 be called it87_wdt. 1284 1285config HP_WATCHDOG 1286 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1287 select WATCHDOG_CORE 1288 depends on X86 && PCI 1289 help 1290 A software monitoring watchdog and NMI handling driver. This driver 1291 will detect lockups and provide a stack trace. This is a driver that 1292 will only load on an HP ProLiant system with a minimum of iLO2 support. 1293 To compile this driver as a module, choose M here: the module will be 1294 called hpwdt. 1295 1296config HPWDT_NMI_DECODING 1297 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1298 depends on HP_WATCHDOG 1299 default y 1300 help 1301 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1302 "Generate NMI to System" virtual button. When an NMI is claimed 1303 by the driver, panic is called. 1304 1305config KEMPLD_WDT 1306 tristate "Kontron COM Watchdog Timer" 1307 depends on MFD_KEMPLD 1308 select WATCHDOG_CORE 1309 help 1310 Support for the PLD watchdog on some Kontron ETX and COMexpress 1311 (ETXexpress) modules 1312 1313 This driver can also be built as a module. If so, the module will be 1314 called kempld_wdt. 1315 1316config SC1200_WDT 1317 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1318 depends on X86 1319 help 1320 This is a driver for National Semiconductor PC87307/PC97307 hardware 1321 watchdog cards as found on the SC1200. This watchdog is mainly used 1322 for power management purposes and can be used to power down the device 1323 during inactivity periods (includes interrupt activity monitoring). 1324 1325 To compile this driver as a module, choose M here: the 1326 module will be called sc1200wdt. 1327 1328 Most people will say N. 1329 1330config SCx200_WDT 1331 tristate "National Semiconductor SCx200 Watchdog" 1332 depends on SCx200 && PCI 1333 help 1334 Enable the built-in watchdog timer support on the National 1335 Semiconductor SCx200 processors. 1336 1337 If compiled as a module, it will be called scx200_wdt. 1338 1339config PC87413_WDT 1340 tristate "NS PC87413 watchdog" 1341 depends on X86 1342 help 1343 This is the driver for the hardware watchdog on the PC87413 chipset 1344 This watchdog simply watches your kernel to make sure it doesn't 1345 freeze, and if it does, it reboots your computer after a certain 1346 amount of time. 1347 1348 To compile this driver as a module, choose M here: the 1349 module will be called pc87413_wdt. 1350 1351 Most people will say N. 1352 1353config NV_TCO 1354 tristate "nVidia TCO Timer/Watchdog" 1355 depends on X86 && PCI 1356 help 1357 Hardware driver for the TCO timer built into the nVidia Hub family 1358 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1359 watchdog timer that will reboot the machine after its second 1360 expiration. The expiration time can be configured with the 1361 "heartbeat" parameter. 1362 1363 On some motherboards the driver may fail to reset the chipset's 1364 NO_REBOOT flag which prevents the watchdog from rebooting the 1365 machine. If this is the case you will get a kernel message like 1366 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1367 1368 To compile this driver as a module, choose M here: the 1369 module will be called nv_tco. 1370 1371config RDC321X_WDT 1372 tristate "RDC R-321x SoC watchdog" 1373 depends on X86_RDC321X || COMPILE_TEST 1374 depends on PCI 1375 help 1376 This is the driver for the built in hardware watchdog 1377 in the RDC R-321x SoC. 1378 1379 To compile this driver as a module, choose M here: the 1380 module will be called rdc321x_wdt. 1381 1382config 60XX_WDT 1383 tristate "SBC-60XX Watchdog Timer" 1384 depends on X86 1385 help 1386 This driver can be used with the watchdog timer found on some 1387 single board computers, namely the 6010 PII based computer. 1388 It may well work with other cards. It reads port 0x443 to enable 1389 and re-set the watchdog timer, and reads port 0x45 to disable 1390 the watchdog. If you have a card that behave in similar ways, 1391 you can probably make this driver work with your card as well. 1392 1393 You can compile this driver directly into the kernel, or use 1394 it as a module. The module will be called sbc60xxwdt. 1395 1396config SBC8360_WDT 1397 tristate "SBC8360 Watchdog Timer" 1398 depends on X86_32 1399 help 1400 1401 This is the driver for the hardware watchdog on the SBC8360 Single 1402 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1403 1404 To compile this driver as a module, choose M here: the 1405 module will be called sbc8360. 1406 1407 Most people will say N. 1408 1409config SBC7240_WDT 1410 tristate "SBC Nano 7240 Watchdog Timer" 1411 depends on X86_32 && !UML 1412 help 1413 This is the driver for the hardware watchdog found on the IEI 1414 single board computers EPIC Nano 7240 (and likely others). This 1415 watchdog simply watches your kernel to make sure it doesn't freeze, 1416 and if it does, it reboots your computer after a certain amount of 1417 time. 1418 1419 To compile this driver as a module, choose M here: the 1420 module will be called sbc7240_wdt. 1421 1422config CPU5_WDT 1423 tristate "SMA CPU5 Watchdog" 1424 depends on X86 1425 help 1426 TBD. 1427 To compile this driver as a module, choose M here: the 1428 module will be called cpu5wdt. 1429 1430config SMSC_SCH311X_WDT 1431 tristate "SMSC SCH311X Watchdog Timer" 1432 depends on X86 1433 help 1434 This is the driver for the hardware watchdog timer on the 1435 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1436 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1437 serial ports). 1438 1439 To compile this driver as a module, choose M here: the 1440 module will be called sch311x_wdt. 1441 1442config SMSC37B787_WDT 1443 tristate "Winbond SMsC37B787 Watchdog Timer" 1444 depends on X86 1445 help 1446 This is the driver for the hardware watchdog component on the 1447 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1448 from Vision Systems and maybe others. 1449 1450 This watchdog simply watches your kernel to make sure it doesn't 1451 freeze, and if it does, it reboots your computer after a certain 1452 amount of time. 1453 1454 Usually a userspace daemon will notify the kernel WDT driver that 1455 userspace is still alive, at regular intervals. 1456 1457 To compile this driver as a module, choose M here: the 1458 module will be called smsc37b787_wdt. 1459 1460 Most people will say N. 1461 1462config TQMX86_WDT 1463 tristate "TQ-Systems TQMX86 Watchdog Timer" 1464 depends on X86 1465 select WATCHDOG_CORE 1466 help 1467 This is the driver for the hardware watchdog timer in the TQMX86 IO 1468 controller found on some of their ComExpress Modules. 1469 1470 To compile this driver as a module, choose M here; the module 1471 will be called tqmx86_wdt. 1472 1473 Most people will say N. 1474 1475config VIA_WDT 1476 tristate "VIA Watchdog Timer" 1477 depends on X86 && PCI 1478 select WATCHDOG_CORE 1479 help 1480 This is the driver for the hardware watchdog timer on VIA 1481 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1482 1483 To compile this driver as a module, choose M here; the module 1484 will be called via_wdt. 1485 1486 Most people will say N. 1487 1488config W83627HF_WDT 1489 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1490 depends on X86 1491 select WATCHDOG_CORE 1492 help 1493 This is the driver for the hardware watchdog on the following 1494 Super I/O chips. 1495 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1496 W83637HF 1497 W83667HG/HG-B 1498 W83687THF 1499 W83697HF 1500 W83697UG 1501 NCT6775 1502 NCT6776 1503 NCT6779 1504 NCT6791 1505 NCT6792 1506 NCT6102D/04D/06D 1507 NCT6116D 1508 1509 This watchdog simply watches your kernel to make sure it doesn't 1510 freeze, and if it does, it reboots your computer after a certain 1511 amount of time. 1512 1513 To compile this driver as a module, choose M here: the 1514 module will be called w83627hf_wdt. 1515 1516 Most people will say N. 1517 1518config W83877F_WDT 1519 tristate "W83877F (EMACS) Watchdog Timer" 1520 depends on X86 1521 help 1522 This is the driver for the hardware watchdog on the W83877F chipset 1523 as used in EMACS PC-104 motherboards (and likely others). This 1524 watchdog simply watches your kernel to make sure it doesn't freeze, 1525 and if it does, it reboots your computer after a certain amount of 1526 time. 1527 1528 To compile this driver as a module, choose M here: the 1529 module will be called w83877f_wdt. 1530 1531 Most people will say N. 1532 1533config W83977F_WDT 1534 tristate "W83977F (PCM-5335) Watchdog Timer" 1535 depends on X86 1536 help 1537 This is the driver for the hardware watchdog on the W83977F I/O chip 1538 as used in AAEON's PCM-5335 SBC (and likely others). This 1539 watchdog simply watches your kernel to make sure it doesn't freeze, 1540 and if it does, it reboots your computer after a certain amount of 1541 time. 1542 1543 To compile this driver as a module, choose M here: the 1544 module will be called w83977f_wdt. 1545 1546config MACHZ_WDT 1547 tristate "ZF MachZ Watchdog" 1548 depends on X86 1549 help 1550 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1551 N. This is the driver for the watchdog timer built-in on that 1552 processor using ZF-Logic interface. This watchdog simply watches 1553 your kernel to make sure it doesn't freeze, and if it does, it 1554 reboots your computer after a certain amount of time. 1555 1556 To compile this driver as a module, choose M here: the 1557 module will be called machzwd. 1558 1559config SBC_EPX_C3_WATCHDOG 1560 tristate "Winsystems SBC EPX-C3 watchdog" 1561 depends on X86 1562 help 1563 This is the driver for the built-in watchdog timer on the EPX-C3 1564 Single-board computer made by Winsystems, Inc. 1565 1566 *Note*: This hardware watchdog is not probeable and thus there 1567 is no way to know if writing to its IO address will corrupt 1568 your system or have any real effect. The only way to be sure 1569 that this driver does what you want is to make sure you 1570 are running it on an EPX-C3 from Winsystems with the watchdog 1571 timer at IO address 0x1ee and 0x1ef. It will write to both those 1572 IO ports. Basically, the assumption is made that if you compile 1573 this driver into your kernel and/or load it as a module, that you 1574 know what you are doing and that you are in fact running on an 1575 EPX-C3 board! 1576 1577 To compile this driver as a module, choose M here: the 1578 module will be called sbc_epx_c3. 1579 1580config INTEL_MEI_WDT 1581 tristate "Intel MEI iAMT Watchdog" 1582 depends on INTEL_MEI && X86 1583 select WATCHDOG_CORE 1584 help 1585 A device driver for the Intel MEI iAMT watchdog. 1586 1587 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1588 Whenever the OS hangs or crashes, iAMT will send an event 1589 to any subscriber to this event. The watchdog doesn't reset the 1590 the platform. 1591 1592 To compile this driver as a module, choose M here: 1593 the module will be called mei_wdt. 1594 1595config NI903X_WDT 1596 tristate "NI 903x/913x Watchdog" 1597 depends on X86 && ACPI 1598 select WATCHDOG_CORE 1599 help 1600 This is the driver for the watchdog timer on the National Instruments 1601 903x/913x real-time controllers. 1602 1603 To compile this driver as a module, choose M here: the module will be 1604 called ni903x_wdt. 1605 1606config NIC7018_WDT 1607 tristate "NIC7018 Watchdog" 1608 depends on X86 && ACPI 1609 select WATCHDOG_CORE 1610 help 1611 Support for National Instruments NIC7018 Watchdog. 1612 1613 To compile this driver as a module, choose M here: the module will be 1614 called nic7018_wdt. 1615 1616# M68K Architecture 1617 1618config M54xx_WATCHDOG 1619 tristate "MCF54xx watchdog support" 1620 depends on M548x 1621 help 1622 To compile this driver as a module, choose M here: the 1623 module will be called m54xx_wdt. 1624 1625# MicroBlaze Architecture 1626 1627# MIPS Architecture 1628 1629config ATH79_WDT 1630 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1631 depends on ATH79 || (ARM && COMPILE_TEST) 1632 help 1633 Hardware driver for the built-in watchdog timer on the Atheros 1634 AR71XX/AR724X/AR913X SoCs. 1635 1636config BCM47XX_WDT 1637 tristate "Broadcom BCM47xx Watchdog Timer" 1638 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1639 select WATCHDOG_CORE 1640 help 1641 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1642 1643config RC32434_WDT 1644 tristate "IDT RC32434 SoC Watchdog Timer" 1645 depends on MIKROTIK_RB532 1646 help 1647 Hardware driver for the IDT RC32434 SoC built-in 1648 watchdog timer. 1649 1650 To compile this driver as a module, choose M here: the 1651 module will be called rc32434_wdt. 1652 1653config INDYDOG 1654 tristate "Indy/I2 Hardware Watchdog" 1655 depends on SGI_HAS_INDYDOG 1656 help 1657 Hardware driver for the Indy's/I2's watchdog. This is a 1658 watchdog timer that will reboot the machine after a 60 second 1659 timer expired and no process has written to /dev/watchdog during 1660 that time. 1661 1662config JZ4740_WDT 1663 tristate "Ingenic jz4740 SoC hardware watchdog" 1664 depends on MIPS 1665 depends on COMMON_CLK 1666 select WATCHDOG_CORE 1667 select MFD_SYSCON 1668 help 1669 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1670 1671config WDT_MTX1 1672 tristate "MTX-1 Hardware Watchdog" 1673 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1674 help 1675 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1676 will reboot the machine after a 100 seconds timer expired. 1677 1678config SIBYTE_WDOG 1679 tristate "Sibyte SoC hardware watchdog" 1680 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1681 help 1682 Watchdog driver for the built in watchdog hardware in Sibyte 1683 SoC processors. There are apparently two watchdog timers 1684 on such processors; this driver supports only the first one, 1685 because currently Linux only supports exporting one watchdog 1686 to userspace. 1687 1688 To compile this driver as a loadable module, choose M here. 1689 The module will be called sb_wdog. 1690 1691config AR7_WDT 1692 tristate "TI AR7 Watchdog Timer" 1693 depends on AR7 || (MIPS && COMPILE_TEST) 1694 help 1695 Hardware driver for the TI AR7 Watchdog Timer. 1696 1697config TXX9_WDT 1698 tristate "Toshiba TXx9 Watchdog Timer" 1699 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1700 select WATCHDOG_CORE 1701 help 1702 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1703 1704config OCTEON_WDT 1705 tristate "Cavium OCTEON SOC family Watchdog Timer" 1706 depends on CAVIUM_OCTEON_SOC 1707 default y 1708 select WATCHDOG_CORE 1709 select EXPORT_UASM if OCTEON_WDT = m 1710 help 1711 Hardware driver for OCTEON's on chip watchdog timer. 1712 Enables the watchdog for all cores running Linux. It 1713 installs a NMI handler and pokes the watchdog based on an 1714 interrupt. On first expiration of the watchdog, the 1715 interrupt handler pokes it. The second expiration causes an 1716 NMI that prints a message. The third expiration causes a 1717 global soft reset. 1718 1719 When userspace has /dev/watchdog open, no poking is done 1720 from the first interrupt, it is then only poked when the 1721 device is written. 1722 1723config BCM63XX_WDT 1724 tristate "Broadcom BCM63xx hardware watchdog" 1725 depends on BCM63XX 1726 help 1727 Watchdog driver for the built in watchdog hardware in Broadcom 1728 BCM63xx SoC. 1729 1730 To compile this driver as a loadable module, choose M here. 1731 The module will be called bcm63xx_wdt. 1732 1733config BCM2835_WDT 1734 tristate "Broadcom BCM2835 hardware watchdog" 1735 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1736 select WATCHDOG_CORE 1737 help 1738 Watchdog driver for the built in watchdog hardware in Broadcom 1739 BCM2835 SoC. 1740 1741 To compile this driver as a loadable module, choose M here. 1742 The module will be called bcm2835_wdt. 1743 1744config BCM_KONA_WDT 1745 tristate "BCM Kona Watchdog" 1746 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1747 select WATCHDOG_CORE 1748 help 1749 Support for the watchdog timer on the following Broadcom BCM281xx 1750 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1751 BCM28155 variants. 1752 1753 Say 'Y' or 'M' here to enable the driver. The module will be called 1754 bcm_kona_wdt. 1755 1756config BCM_KONA_WDT_DEBUG 1757 bool "DEBUGFS support for BCM Kona Watchdog" 1758 depends on BCM_KONA_WDT 1759 help 1760 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1761 access to the driver's internal data structures as well as watchdog 1762 timer hardware registres. 1763 1764 If in doubt, say 'N'. 1765 1766config BCM7038_WDT 1767 tristate "BCM7038 Watchdog" 1768 select WATCHDOG_CORE 1769 depends on HAS_IOMEM 1770 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1771 help 1772 Watchdog driver for the built-in hardware in Broadcom 7038 and 1773 later SoCs used in set-top boxes. BCM7038 was made public 1774 during the 2004 CES, and since then, many Broadcom chips use this 1775 watchdog block, including some cable modem chips. 1776 1777config IMGPDC_WDT 1778 tristate "Imagination Technologies PDC Watchdog Timer" 1779 depends on HAS_IOMEM 1780 depends on MIPS || COMPILE_TEST 1781 select WATCHDOG_CORE 1782 help 1783 Driver for Imagination Technologies PowerDown Controller 1784 Watchdog Timer. 1785 1786 To compile this driver as a loadable module, choose M here. 1787 The module will be called imgpdc_wdt. 1788 1789config LANTIQ_WDT 1790 tristate "Lantiq SoC watchdog" 1791 depends on LANTIQ 1792 select WATCHDOG_CORE 1793 help 1794 Hardware driver for the Lantiq SoC Watchdog Timer. 1795 1796config LOONGSON1_WDT 1797 tristate "Loongson1 SoC hardware watchdog" 1798 depends on MACH_LOONGSON32 1799 select WATCHDOG_CORE 1800 help 1801 Hardware driver for the Loongson1 SoC Watchdog Timer. 1802 1803config RALINK_WDT 1804 tristate "Ralink SoC watchdog" 1805 select WATCHDOG_CORE 1806 depends on RALINK 1807 help 1808 Hardware driver for the Ralink SoC Watchdog Timer. 1809 1810config MT7621_WDT 1811 tristate "Mediatek SoC watchdog" 1812 select WATCHDOG_CORE 1813 depends on SOC_MT7620 || SOC_MT7621 1814 help 1815 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1816 1817config PIC32_WDT 1818 tristate "Microchip PIC32 hardware watchdog" 1819 select WATCHDOG_CORE 1820 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1821 help 1822 Watchdog driver for the built in watchdog hardware in a PIC32. 1823 1824 Configuration bits must be set appropriately for the watchdog to be 1825 controlled by this driver. 1826 1827 To compile this driver as a loadable module, choose M here. 1828 The module will be called pic32-wdt. 1829 1830config PIC32_DMT 1831 tristate "Microchip PIC32 Deadman Timer" 1832 select WATCHDOG_CORE 1833 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1834 help 1835 Watchdog driver for PIC32 instruction fetch counting timer. This 1836 specific timer is typically be used in mission critical and safety 1837 critical applications, where any single failure of the software 1838 functionality and sequencing must be detected. 1839 1840 To compile this driver as a loadable module, choose M here. 1841 The module will be called pic32-dmt. 1842 1843# PARISC Architecture 1844 1845# POWERPC Architecture 1846 1847config GEF_WDT 1848 tristate "GE Watchdog Timer" 1849 depends on GE_FPGA 1850 help 1851 Watchdog timer found in a number of GE single board computers. 1852 1853config MPC5200_WDT 1854 bool "MPC52xx Watchdog Timer" 1855 depends on PPC_MPC52xx || COMPILE_TEST 1856 help 1857 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1858 1859config 8xxx_WDT 1860 tristate "MPC8xxx Platform Watchdog Timer" 1861 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1862 select WATCHDOG_CORE 1863 help 1864 This driver is for a SoC level watchdog that exists on some 1865 Freescale PowerPC processors. So far this driver supports: 1866 - MPC8xx watchdogs 1867 - MPC83xx watchdogs 1868 - MPC86xx watchdogs 1869 1870 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1871 1872config PIKA_WDT 1873 tristate "PIKA FPGA Watchdog" 1874 depends on WARP || (PPC64 && COMPILE_TEST) 1875 default y 1876 help 1877 This enables the watchdog in the PIKA FPGA. Currently used on 1878 the Warp platform. 1879 1880config BOOKE_WDT 1881 tristate "PowerPC Book-E Watchdog Timer" 1882 depends on BOOKE || 4xx 1883 select WATCHDOG_CORE 1884 help 1885 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1886 MPC85xx SOCs and the IBM PowerPC 440. 1887 1888 Please see Documentation/watchdog/watchdog-api.rst for 1889 more information. 1890 1891config BOOKE_WDT_DEFAULT_TIMEOUT 1892 int "PowerPC Book-E Watchdog Timer Default Timeout" 1893 depends on BOOKE_WDT 1894 default 38 if PPC_FSL_BOOK3E 1895 range 0 63 if PPC_FSL_BOOK3E 1896 default 3 if !PPC_FSL_BOOK3E 1897 range 0 3 if !PPC_FSL_BOOK3E 1898 help 1899 Select the default watchdog timer period to be used by the PowerPC 1900 Book-E watchdog driver. A watchdog "event" occurs when the bit 1901 position represented by this number transitions from zero to one. 1902 1903 For Freescale Book-E processors, this is a number between 0 and 63. 1904 For other Book-E processors, this is a number between 0 and 3. 1905 1906 The value can be overridden by the wdt_period command-line parameter. 1907 1908config MEN_A21_WDT 1909 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1910 select WATCHDOG_CORE 1911 depends on GPIOLIB || COMPILE_TEST 1912 help 1913 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1914 1915 The driver can also be built as a module. If so, the module will be 1916 called mena21_wdt. 1917 1918 If unsure select N here. 1919 1920# PPC64 Architecture 1921 1922config WATCHDOG_RTAS 1923 tristate "RTAS watchdog" 1924 depends on PPC_RTAS 1925 help 1926 This driver adds watchdog support for the RTAS watchdog. 1927 1928 To compile this driver as a module, choose M here. The module 1929 will be called wdrtas. 1930 1931# S390 Architecture 1932 1933config DIAG288_WATCHDOG 1934 tristate "System z diag288 Watchdog" 1935 depends on S390 1936 select WATCHDOG_CORE 1937 help 1938 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1939 provide a virtual watchdog timer to their guest that cause a 1940 user define Control Program command to be executed after a 1941 timeout. 1942 LPAR provides a very similar interface. This driver handles 1943 both. 1944 1945 To compile this driver as a module, choose M here. The module 1946 will be called diag288_wdt. 1947 1948# SUPERH (sh + sh64) Architecture 1949 1950config SH_WDT 1951 tristate "SuperH Watchdog" 1952 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1953 select WATCHDOG_CORE 1954 help 1955 This driver adds watchdog support for the integrated watchdog in the 1956 SuperH processors. If you have one of these processors and wish 1957 to have watchdog support enabled, say Y, otherwise say N. 1958 1959 As a side note, saying Y here will automatically boost HZ to 1000 1960 so that the timer has a chance to clear the overflow counter. On 1961 slower systems (such as the SH-2 and SH-3) this will likely yield 1962 some performance issues. As such, the WDT should be avoided here 1963 unless it is absolutely necessary. 1964 1965 To compile this driver as a module, choose M here: the 1966 module will be called shwdt. 1967 1968# SPARC Architecture 1969 1970# SPARC64 Architecture 1971 1972config WATCHDOG_CP1XXX 1973 tristate "CP1XXX Hardware Watchdog support" 1974 depends on SPARC64 && PCI 1975 help 1976 This is the driver for the hardware watchdog timers present on 1977 Sun Microsystems CompactPCI models CP1400 and CP1500. 1978 1979 To compile this driver as a module, choose M here: the 1980 module will be called cpwatchdog. 1981 1982 If you do not have a CompactPCI model CP1400 or CP1500, or 1983 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1984 you should say N to this option. 1985 1986config WATCHDOG_RIO 1987 tristate "RIO Hardware Watchdog support" 1988 depends on SPARC64 && PCI 1989 help 1990 Say Y here to support the hardware watchdog capability on Sun RIO 1991 machines. The watchdog timeout period is normally one minute but 1992 can be changed with a boot-time parameter. 1993 1994config WATCHDOG_SUN4V 1995 tristate "Sun4v Watchdog support" 1996 select WATCHDOG_CORE 1997 depends on SPARC64 1998 help 1999 Say Y here to support the hypervisor watchdog capability embedded 2000 in the SPARC sun4v architecture. 2001 2002 To compile this driver as a module, choose M here. The module will 2003 be called sun4v_wdt. 2004 2005# XTENSA Architecture 2006 2007# Xen Architecture 2008 2009config XEN_WDT 2010 tristate "Xen Watchdog support" 2011 depends on XEN 2012 select WATCHDOG_CORE 2013 help 2014 Say Y here to support the hypervisor watchdog capability provided 2015 by Xen 4.0 and newer. The watchdog timeout period is normally one 2016 minute but can be changed with a boot-time parameter. 2017 2018config UML_WATCHDOG 2019 tristate "UML watchdog" 2020 depends on UML || COMPILE_TEST 2021 2022# 2023# ISA-based Watchdog Cards 2024# 2025 2026comment "ISA-based Watchdog Cards" 2027 depends on ISA 2028 2029config PCWATCHDOG 2030 tristate "Berkshire Products ISA-PC Watchdog" 2031 depends on ISA 2032 help 2033 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2034 This card simply watches your kernel to make sure it doesn't freeze, 2035 and if it does, it reboots your computer after a certain amount of 2036 time. This driver is like the WDT501 driver but for different 2037 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2038 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2039 2040 To compile this driver as a module, choose M here: the 2041 module will be called pcwd. 2042 2043 Most people will say N. 2044 2045config MIXCOMWD 2046 tristate "Mixcom Watchdog" 2047 depends on ISA 2048 help 2049 This is a driver for the Mixcom hardware watchdog cards. This 2050 watchdog simply watches your kernel to make sure it doesn't freeze, 2051 and if it does, it reboots your computer after a certain amount of 2052 time. 2053 2054 To compile this driver as a module, choose M here: the 2055 module will be called mixcomwd. 2056 2057 Most people will say N. 2058 2059config WDT 2060 tristate "WDT Watchdog timer" 2061 depends on ISA 2062 help 2063 If you have a WDT500P or WDT501P watchdog board, say Y here, 2064 otherwise N. It is not possible to probe for this board, which means 2065 that you have to inform the kernel about the IO port and IRQ that 2066 is needed (you can do this via the io and irq parameters) 2067 2068 To compile this driver as a module, choose M here: the 2069 module will be called wdt. 2070 2071# 2072# PCI-based Watchdog Cards 2073# 2074 2075comment "PCI-based Watchdog Cards" 2076 depends on PCI 2077 2078config PCIPCWATCHDOG 2079 tristate "Berkshire Products PCI-PC Watchdog" 2080 depends on PCI 2081 help 2082 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2083 This card simply watches your kernel to make sure it doesn't freeze, 2084 and if it does, it reboots your computer after a certain amount of 2085 time. The card can also monitor the internal temperature of the PC. 2086 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2087 2088 To compile this driver as a module, choose M here: the 2089 module will be called pcwd_pci. 2090 2091 Most people will say N. 2092 2093config WDTPCI 2094 tristate "PCI-WDT500/501 Watchdog timer" 2095 depends on PCI 2096 help 2097 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2098 2099 If you have a PCI-WDT501 watchdog board then you can enable the 2100 temperature sensor by setting the type parameter to 501. 2101 2102 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2103 can do this via the tachometer parameter. Only do this if you have a 2104 fan tachometer actually set up. 2105 2106 To compile this driver as a module, choose M here: the 2107 module will be called wdt_pci. 2108 2109# 2110# USB-based Watchdog Cards 2111# 2112 2113comment "USB-based Watchdog Cards" 2114 depends on USB 2115 2116config USBPCWATCHDOG 2117 tristate "Berkshire Products USB-PC Watchdog" 2118 depends on USB 2119 help 2120 This is the driver for the Berkshire Products USB-PC Watchdog card. 2121 This card simply watches your kernel to make sure it doesn't freeze, 2122 and if it does, it reboots your computer after a certain amount of 2123 time. The card can also monitor the internal temperature of the PC. 2124 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2125 2126 To compile this driver as a module, choose M here: the 2127 module will be called pcwd_usb. 2128 2129 Most people will say N. 2130 2131config KEEMBAY_WATCHDOG 2132 tristate "Intel Keem Bay SoC non-secure watchdog" 2133 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2134 select WATCHDOG_CORE 2135 help 2136 This option enable support for an In-secure watchdog timer driver for 2137 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2138 count unit. An interrupt will be triggered, when the count crosses 2139 the threshold configured in the register. 2140 2141 To compile this driver as a module, choose M here: the 2142 module will be called keembay_wdt. 2143 2144endif # WATCHDOG 2145