1 # SPDX-License-Identifier: GPL-2.0-only 2 3 # 4 # Watchdog device configuration 5 # 6 7 menuconfig 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 31 if WATCHDOG 32 33 config 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 41 config 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 50 config 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 61 config 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 70 config 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 76 config 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 84 comment "Watchdog Pretimeout Governors" 85 86 config 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 92 config 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 98 if WATCHDOG_PRETIMEOUT_GOV 99 100 config 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. 107 108 config 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. 115 116 choice 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. 123 124 config 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. 131 132 config 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. 139 140 endchoice 141 142 endif # WATCHDOG_PRETIMEOUT_GOV 143 144 # 145 # General Watchdog drivers 146 # 147 148 comment "Watchdog Device Drivers" 149 150 # Architecture Independent 151 152 config 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. 162 163 config 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! 170 171 config 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. 183 184 config 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. 196 197 config 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. 207 208 config 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. 219 220 config 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. 230 231 config 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. 240 241 config 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. 250 251 config 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. 258 259 config 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. 269 270 config LENOVO_SE10_WDT 271 tristate "Lenovo SE10 Watchdog" 272 depends on (X86 && DMI) || COMPILE_TEST 273 depends on HAS_IOPORT 274 select WATCHDOG_CORE 275 help 276 If you say yes here you get support for the watchdog 277 functionality for the Lenovo SE10 platform. 278 279 This driver can also be built as a module. If so, the module 280 will be called lenovo-se10-wdt. 281 282 config MENF21BMC_WATCHDOG 283 tristate "MEN 14F021P00 BMC Watchdog" 284 depends on MFD_MENF21BMC || COMPILE_TEST 285 depends on I2C 286 select WATCHDOG_CORE 287 help 288 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 289 290 This driver can also be built as a module. If so the module 291 will be called menf21bmc_wdt. 292 293 config MENZ069_WATCHDOG 294 tristate "MEN 16Z069 Watchdog" 295 depends on MCB 296 select WATCHDOG_CORE 297 help 298 Say Y here to include support for the MEN 16Z069 Watchdog. 299 300 This driver can also be built as a module. If so the module 301 will be called menz069_wdt. 302 303 config WDAT_WDT 304 tristate "ACPI Watchdog Action Table (WDAT)" 305 depends on ACPI 306 select WATCHDOG_CORE 307 select ACPI_WATCHDOG 308 help 309 This driver adds support for systems with ACPI Watchdog Action 310 Table (WDAT) table. Servers typically have this but it can be 311 found on some desktop machines as well. This driver will take 312 over the native iTCO watchdog driver found on many Intel CPUs. 313 314 To compile this driver as module, choose M here: the module will 315 be called wdat_wdt. 316 317 config WM831X_WATCHDOG 318 tristate "WM831x watchdog" 319 depends on MFD_WM831X 320 select WATCHDOG_CORE 321 help 322 Support for the watchdog in the WM831x AudioPlus PMICs. When 323 the watchdog triggers the system will be reset. 324 325 config WM8350_WATCHDOG 326 tristate "WM8350 watchdog" 327 depends on MFD_WM8350 328 select WATCHDOG_CORE 329 help 330 Support for the watchdog in the WM8350 AudioPlus PMIC. When 331 the watchdog triggers the system will be reset. 332 333 config XILINX_WATCHDOG 334 tristate "Xilinx Watchdog timer" 335 depends on HAS_IOMEM 336 select WATCHDOG_CORE 337 help 338 Watchdog driver for the xps_timebase_wdt IP core. 339 340 To compile this driver as a module, choose M here: the 341 module will be called of_xilinx_wdt. 342 343 config XILINX_WINDOW_WATCHDOG 344 tristate "Xilinx window watchdog timer" 345 depends on HAS_IOMEM 346 depends on ARM64 || COMPILE_TEST 347 select WATCHDOG_CORE 348 help 349 Window watchdog driver for the versal_wwdt IP core. 350 Window watchdog timer(WWDT) contains closed(first) and 351 open(second) window with 32 bit width. Write to the watchdog 352 timer within predefined window periods of time. This means 353 a period that is not too soon and a period that is not too 354 late. The WWDT has to be restarted within the open window time. 355 If software tries to restart WWDT outside of the open window 356 time period, it generates a reset. 357 358 To compile this driver as a module, choose M here: the 359 module will be called xilinx_wwdt. 360 361 config ZIIRAVE_WATCHDOG 362 tristate "Zodiac RAVE Watchdog Timer" 363 depends on I2C 364 select WATCHDOG_CORE 365 help 366 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 367 Processor. 368 369 To compile this driver as a module, choose M here: the 370 module will be called ziirave_wdt. 371 372 config RAVE_SP_WATCHDOG 373 tristate "RAVE SP Watchdog timer" 374 depends on RAVE_SP_CORE 375 depends on NVMEM || !NVMEM 376 select WATCHDOG_CORE 377 help 378 Support for the watchdog on RAVE SP device. 379 380 config MLX_WDT 381 tristate "Mellanox Watchdog" 382 depends on MELLANOX_PLATFORM || COMPILE_TEST 383 select WATCHDOG_CORE 384 select REGMAP 385 help 386 This is the driver for the hardware watchdog on Mellanox systems. 387 If you are going to use it, say Y here, otherwise N. 388 This driver can be used together with the watchdog daemon. 389 It can also watch your kernel to make sure it doesn't freeze, 390 and if it does, it reboots your system after a certain amount of 391 time. 392 393 To compile this driver as a module, choose M here: the 394 module will be called mlx-wdt. 395 396 config SL28CPLD_WATCHDOG 397 tristate "Kontron sl28cpld Watchdog" 398 depends on MFD_SL28CPLD || COMPILE_TEST 399 select WATCHDOG_CORE 400 help 401 Say Y here to include support for the watchdog timer 402 on the Kontron sl28 CPLD. 403 404 To compile this driver as a module, choose M here: the 405 module will be called sl28cpld_wdt. 406 407 # ALPHA Architecture 408 409 # ARM Architecture 410 411 config ARM_SP805_WATCHDOG 412 tristate "ARM SP805 Watchdog" 413 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 414 select WATCHDOG_CORE 415 help 416 ARM Primecell SP805 Watchdog timer. This will reboot your system when 417 the timeout is reached. 418 419 config ARM_SBSA_WATCHDOG 420 tristate "ARM SBSA Generic Watchdog" 421 depends on ARM64 422 depends on ARM_ARCH_TIMER 423 select WATCHDOG_CORE 424 help 425 ARM SBSA Generic Watchdog has two stage timeouts: 426 the first signal (WS0) is for alerting the system by interrupt, 427 the second one (WS1) is a real hardware reset. 428 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 429 430 This driver can operate ARM SBSA Generic Watchdog as a single stage 431 or a two stages watchdog, it depends on the module parameter "action". 432 433 Note: the maximum timeout in the two stages mode is half of that in 434 the single stage mode. 435 436 To compile this driver as module, choose M here: The module 437 will be called sbsa_gwdt. 438 439 config ARMADA_37XX_WATCHDOG 440 tristate "Armada 37xx watchdog" 441 depends on ARCH_MVEBU || COMPILE_TEST 442 depends on HAS_IOMEM 443 select MFD_SYSCON 444 select WATCHDOG_CORE 445 help 446 Say Y here to include support for the watchdog timer found on 447 Marvell Armada 37xx SoCs. 448 To compile this driver as a module, choose M here: the 449 module will be called armada_37xx_wdt. 450 451 config ASM9260_WATCHDOG 452 tristate "Alphascale ASM9260 watchdog" 453 depends on MACH_ASM9260 || COMPILE_TEST 454 depends on OF 455 select WATCHDOG_CORE 456 select RESET_CONTROLLER 457 help 458 Watchdog timer embedded into Alphascale asm9260 chips. This will 459 reboot your system when the timeout is reached. 460 461 config AT91RM9200_WATCHDOG 462 tristate "AT91RM9200 watchdog" 463 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 464 help 465 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 466 system when the timeout is reached. 467 468 config AT91SAM9X_WATCHDOG 469 tristate "AT91SAM9X / AT91CAP9 watchdog" 470 depends on ARCH_AT91 || COMPILE_TEST 471 select WATCHDOG_CORE 472 help 473 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 474 reboot your system when the timeout is reached. 475 476 config SAMA5D4_WATCHDOG 477 tristate "Atmel SAMA5D4 Watchdog Timer" 478 depends on ARCH_AT91 || COMPILE_TEST 479 select WATCHDOG_CORE 480 help 481 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 482 Its Watchdog Timer Mode Register can be written more than once. 483 This will reboot your system when the timeout is reached. 484 485 config CADENCE_WATCHDOG 486 tristate "Cadence Watchdog Timer" 487 depends on HAS_IOMEM 488 select WATCHDOG_CORE 489 help 490 Say Y here if you want to include support for the watchdog 491 timer in the Xilinx Zynq. 492 493 config 21285_WATCHDOG 494 tristate "DC21285 watchdog" 495 depends on FOOTBRIDGE 496 help 497 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 498 here if you wish to use this. Alternatively say M to compile the 499 driver as a module, which will be called wdt285. 500 501 This driver does not work on all machines. In particular, early CATS 502 boards have hardware problems that will cause the machine to simply 503 lock up if the watchdog fires. 504 505 "If in doubt, leave it out" - say N. 506 507 config 977_WATCHDOG 508 tristate "NetWinder WB83C977 watchdog" 509 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 510 depends on HAS_IOPORT 511 help 512 Say Y here to include support for the WB977 watchdog included in 513 NetWinder machines. Alternatively say M to compile the driver as 514 a module, which will be called wdt977. 515 516 Not sure? It's safe to say N. 517 518 config FTWDT010_WATCHDOG 519 tristate "Faraday Technology FTWDT010 watchdog" 520 depends on ARM || COMPILE_TEST 521 select WATCHDOG_CORE 522 default ARCH_GEMINI 523 help 524 Say Y here if to include support for the Faraday Technology 525 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 526 family of devices. 527 528 To compile this driver as a module, choose M here: the 529 module will be called ftwdt010_wdt. 530 531 config IXP4XX_WATCHDOG 532 tristate "IXP4xx Watchdog" 533 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST) 534 select WATCHDOG_CORE 535 help 536 Say Y here if to include support for the watchdog timer 537 in the Intel IXP4xx network processors. This driver can 538 be built as a module by choosing M. The module will 539 be called ixp4xx_wdt. 540 541 Note: The internal IXP4xx watchdog does a soft CPU reset 542 which doesn't reset any peripherals. There are circumstances 543 where the watchdog will fail to reset the board correctly 544 (e.g., if the boot ROM is in an unreadable state). 545 546 Say N if you are unsure. 547 548 config S3C2410_WATCHDOG 549 tristate "S3C6410/S5Pv210/Exynos Watchdog" 550 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 551 select WATCHDOG_CORE 552 help 553 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 554 SoCs. This will reboot the system when the timer expires with 555 the watchdog enabled. 556 557 The driver is limited by the speed of the system's PCLK 558 signal, so with reasonably fast systems (PCLK around 50-66MHz) 559 then watchdog intervals of over approximately 20seconds are 560 unavailable. 561 562 Choose Y/M here only if you build for such Samsung SoC. 563 The driver can be built as a module by choosing M, and will 564 be called s3c2410_wdt. 565 566 config SA1100_WATCHDOG 567 tristate "SA1100/PXA2xx watchdog" 568 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 569 help 570 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 571 reboot your system when timeout is reached. 572 573 NOTE: once enabled, this timer cannot be disabled. 574 575 To compile this driver as a module, choose M here: the 576 module will be called sa1100_wdt. 577 578 config DW_WATCHDOG 579 tristate "Synopsys DesignWare watchdog" 580 depends on HAS_IOMEM 581 select WATCHDOG_CORE 582 help 583 Say Y here if to include support for the Synopsys DesignWare 584 watchdog timer found in many chips. 585 To compile this driver as a module, choose M here: the 586 module will be called dw_wdt. 587 588 config EP93XX_WATCHDOG 589 tristate "EP93xx Watchdog" 590 depends on ARCH_EP93XX || COMPILE_TEST 591 select WATCHDOG_CORE 592 help 593 Say Y here if to include support for the watchdog timer 594 embedded in the Cirrus Logic EP93xx family of devices. 595 596 To compile this driver as a module, choose M here: the 597 module will be called ep93xx_wdt. 598 599 config OMAP_WATCHDOG 600 tristate "OMAP Watchdog" 601 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 602 select WATCHDOG_CORE 603 help 604 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 605 Say 'Y' here to enable the 606 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 607 608 config PNX4008_WATCHDOG 609 tristate "LPC32XX Watchdog" 610 depends on ARCH_LPC32XX || COMPILE_TEST 611 select WATCHDOG_CORE 612 help 613 Say Y here if to include support for the watchdog timer 614 in the LPC32XX processor. 615 This driver can be built as a module by choosing M. The module 616 will be called pnx4008_wdt. 617 618 Say N if you are unsure. 619 620 config DAVINCI_WATCHDOG 621 tristate "DaVinci watchdog" 622 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 623 select WATCHDOG_CORE 624 help 625 Say Y here if to include support for the watchdog timer 626 in the DaVinci DM644x/DM646x or Keystone processors. 627 To compile this driver as a module, choose M here: the 628 module will be called davinci_wdt. 629 630 NOTE: once enabled, this timer cannot be disabled. 631 Say N if you are unsure. 632 633 config K3_RTI_WATCHDOG 634 tristate "Texas Instruments K3 RTI watchdog" 635 depends on ARCH_K3 || COMPILE_TEST 636 select WATCHDOG_CORE 637 help 638 Say Y here if you want to include support for the K3 watchdog 639 timer (RTI module) available in the K3 generation of processors. 640 641 config ORION_WATCHDOG 642 tristate "Orion watchdog" 643 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 644 depends on ARM 645 select WATCHDOG_CORE 646 help 647 Say Y here if to include support for the watchdog timer 648 in the Marvell Orion5x and Kirkwood ARM SoCs. 649 To compile this driver as a module, choose M here: the 650 module will be called orion_wdt. 651 652 config RN5T618_WATCHDOG 653 tristate "Ricoh RN5T618 watchdog" 654 depends on MFD_RN5T618 || COMPILE_TEST 655 select WATCHDOG_CORE 656 help 657 If you say yes here you get support for watchdog on the Ricoh 658 RN5T618 PMIC. 659 660 This driver can also be built as a module. If so, the module 661 will be called rn5t618_wdt. 662 663 config SUNXI_WATCHDOG 664 tristate "Allwinner SoCs watchdog support" 665 depends on ARCH_SUNXI || COMPILE_TEST 666 select WATCHDOG_CORE 667 help 668 Say Y here to include support for the watchdog timer 669 in Allwinner SoCs. 670 To compile this driver as a module, choose M here: the 671 module will be called sunxi_wdt. 672 673 config NPCM7XX_WATCHDOG 674 tristate "Nuvoton NPCM750 watchdog" 675 depends on ARCH_NPCM || COMPILE_TEST 676 default y if ARCH_NPCM7XX 677 select WATCHDOG_CORE 678 help 679 Say Y here to include Watchdog timer support for the 680 watchdog embedded into the NPCM7xx. 681 This watchdog is used to reset the system and thus cannot be 682 compiled as a module. 683 684 config TWL4030_WATCHDOG 685 tristate "TWL4030 Watchdog" 686 depends on TWL4030_CORE 687 select WATCHDOG_CORE 688 help 689 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 690 watchdog timer support for TWL4030 chips. 691 692 config STMP3XXX_RTC_WATCHDOG 693 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 694 depends on RTC_DRV_STMP || COMPILE_TEST 695 select WATCHDOG_CORE 696 help 697 Say Y here to include support for the watchdog timer inside 698 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 699 To compile this driver as a module, choose M here: the 700 module will be called stmp3xxx_rtc_wdt. 701 702 config TS4800_WATCHDOG 703 tristate "TS-4800 Watchdog" 704 depends on HAS_IOMEM && OF 705 depends on SOC_IMX51 || COMPILE_TEST 706 select WATCHDOG_CORE 707 select MFD_SYSCON 708 help 709 Technologic Systems TS-4800 has watchdog timer implemented in 710 an external FPGA. Say Y here if you want to support for the 711 watchdog timer on TS-4800 board. 712 713 config TS72XX_WATCHDOG 714 tristate "TS-72XX SBC Watchdog" 715 depends on MACH_TS72XX || COMPILE_TEST 716 select WATCHDOG_CORE 717 help 718 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 719 watchdog timer implemented in a external CPLD chip. Say Y here 720 if you want to support for the watchdog timer on TS-72XX boards. 721 722 To compile this driver as a module, choose M here: the 723 module will be called ts72xx_wdt. 724 725 config MAX63XX_WATCHDOG 726 tristate "Max63xx watchdog" 727 depends on HAS_IOMEM 728 select WATCHDOG_CORE 729 help 730 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 731 732 config MAX77620_WATCHDOG 733 tristate "Maxim Max77620 Watchdog Timer" 734 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 735 select WATCHDOG_CORE 736 help 737 This is the driver for the Max77620 watchdog timer. 738 Say 'Y' here to enable the watchdog timer support for 739 MAX77620 chips. To compile this driver as a module, 740 choose M here: the module will be called max77620_wdt. 741 742 config IMX2_WDT 743 tristate "IMX2+ Watchdog" 744 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 745 select REGMAP_MMIO 746 select WATCHDOG_CORE 747 help 748 This is the driver for the hardware watchdog 749 on the Freescale IMX2 and later processors. 750 If you have one of these processors and wish to have 751 watchdog support enabled, say Y, otherwise say N. 752 753 To compile this driver as a module, choose M here: the 754 module will be called imx2_wdt. 755 756 config IMX_SC_WDT 757 tristate "IMX SC Watchdog" 758 depends on HAVE_ARM_SMCCC 759 depends on IMX_SCU || COMPILE_TEST 760 select WATCHDOG_CORE 761 help 762 This is the driver for the system controller watchdog 763 on the NXP i.MX SoCs with system controller inside, the 764 watchdog driver will call ARM SMC API and trap into 765 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 766 will request system controller to execute the operations. 767 If you have one of these processors and wish to have 768 watchdog support enabled, say Y, otherwise say N. 769 770 To compile this driver as a module, choose M here: the 771 module will be called imx_sc_wdt. 772 773 config IMX7ULP_WDT 774 tristate "IMX7ULP Watchdog" 775 depends on ARCH_MXC || COMPILE_TEST 776 select WATCHDOG_CORE 777 help 778 This is the driver for the hardware watchdog on the Freescale 779 IMX7ULP and later processors. If you have one of these 780 processors and wish to have watchdog support enabled, 781 say Y, otherwise say N. 782 783 To compile this driver as a module, choose M here: the 784 module will be called imx7ulp_wdt. 785 786 config DB500_WATCHDOG 787 tristate "ST-Ericsson DB800 watchdog" 788 depends on MFD_DB8500_PRCMU 789 select WATCHDOG_CORE 790 default y 791 help 792 Say Y here to include Watchdog timer support for the watchdog 793 existing in the prcmu of ST-Ericsson DB8500 platform. 794 795 To compile this driver as a module, choose M here: the 796 module will be called db500_wdt. 797 798 config RETU_WATCHDOG 799 tristate "Retu watchdog" 800 depends on MFD_RETU 801 select WATCHDOG_CORE 802 help 803 Retu watchdog driver for Nokia Internet Tablets (770, N800, 804 N810). At least on N800 the watchdog cannot be disabled, so 805 this driver is essential and you should enable it. 806 807 To compile this driver as a module, choose M here: the 808 module will be called retu_wdt. 809 810 config MOXART_WDT 811 tristate "MOXART watchdog" 812 depends on ARCH_MOXART || COMPILE_TEST 813 help 814 Say Y here to include Watchdog timer support for the watchdog 815 existing on the MOXA ART SoC series platforms. 816 817 To compile this driver as a module, choose M here: the 818 module will be called moxart_wdt. 819 820 config ST_LPC_WATCHDOG 821 tristate "STMicroelectronics LPC Watchdog" 822 depends on ARCH_STI || COMPILE_TEST 823 depends on OF 824 select WATCHDOG_CORE 825 help 826 Say Y here to include STMicroelectronics Low Power Controller 827 (LPC) based Watchdog timer support. 828 829 To compile this driver as a module, choose M here: the 830 module will be called st_lpc_wdt. 831 832 config TEGRA_WATCHDOG 833 tristate "Tegra watchdog" 834 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 835 select WATCHDOG_CORE 836 help 837 Say Y here to include support for the watchdog timer 838 embedded in NVIDIA Tegra SoCs. 839 840 To compile this driver as a module, choose M here: the 841 module will be called tegra_wdt. 842 843 config QCOM_WDT 844 tristate "QCOM watchdog" 845 depends on HAS_IOMEM 846 depends on ARCH_QCOM || COMPILE_TEST 847 select WATCHDOG_CORE 848 help 849 Say Y here to include Watchdog timer support for the watchdog found 850 on QCOM chipsets. Currently supported targets are the MSM8960, 851 APQ8064, and IPQ8064. 852 853 To compile this driver as a module, choose M here: the 854 module will be called qcom_wdt. 855 856 config MESON_GXBB_WATCHDOG 857 tristate "Amlogic Meson GXBB SoCs watchdog support" 858 depends on ARCH_MESON || COMPILE_TEST 859 select WATCHDOG_CORE 860 help 861 Say Y here to include support for the watchdog timer 862 in Amlogic Meson GXBB SoCs. 863 To compile this driver as a module, choose M here: the 864 module will be called meson_gxbb_wdt. 865 866 config MESON_WATCHDOG 867 tristate "Amlogic Meson SoCs watchdog support" 868 depends on ARCH_MESON || COMPILE_TEST 869 select WATCHDOG_CORE 870 help 871 Say Y here to include support for the watchdog timer 872 in Amlogic Meson SoCs. 873 To compile this driver as a module, choose M here: the 874 module will be called meson_wdt. 875 876 config MEDIATEK_WATCHDOG 877 tristate "Mediatek SoCs watchdog support" 878 depends on ARCH_MEDIATEK || COMPILE_TEST 879 default ARCH_MEDIATEK 880 select WATCHDOG_CORE 881 select RESET_CONTROLLER 882 help 883 Say Y here to include support for the watchdog timer 884 in Mediatek SoCs. 885 To compile this driver as a module, choose M here: the 886 module will be called mtk_wdt. 887 888 config DIGICOLOR_WATCHDOG 889 tristate "Conexant Digicolor SoCs watchdog support" 890 depends on ARCH_DIGICOLOR || COMPILE_TEST 891 select WATCHDOG_CORE 892 help 893 Say Y here to include support for the watchdog timer 894 in Conexant Digicolor SoCs. 895 To compile this driver as a module, choose M here: the 896 module will be called digicolor_wdt. 897 898 config ARM_SMC_WATCHDOG 899 tristate "ARM Secure Monitor Call based watchdog support" 900 depends on ARM || ARM64 901 depends on OF 902 depends on HAVE_ARM_SMCCC 903 select WATCHDOG_CORE 904 help 905 Say Y here to include support for a watchdog timer 906 implemented by the EL3 Secure Monitor on ARM platforms. 907 Requires firmware support. 908 To compile this driver as a module, choose M here: the 909 module will be called arm_smc_wdt. 910 911 config LPC18XX_WATCHDOG 912 tristate "LPC18xx/43xx Watchdog" 913 depends on ARCH_LPC18XX || COMPILE_TEST 914 depends on HAS_IOMEM 915 select WATCHDOG_CORE 916 help 917 Say Y here if to include support for the watchdog timer 918 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 919 processors. 920 To compile this driver as a module, choose M here: the 921 module will be called lpc18xx_wdt. 922 923 config RENESAS_WDT 924 tristate "Renesas WDT Watchdog" 925 depends on ARCH_RENESAS || COMPILE_TEST 926 select WATCHDOG_CORE 927 help 928 This driver adds watchdog support for the integrated watchdogs in the 929 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 930 931 config RENESAS_RZAWDT 932 tristate "Renesas RZ/A WDT Watchdog" 933 depends on ARCH_RENESAS || COMPILE_TEST 934 select WATCHDOG_CORE 935 help 936 This driver adds watchdog support for the integrated watchdogs in the 937 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 938 939 config RENESAS_RZN1WDT 940 tristate "Renesas RZ/N1 watchdog" 941 depends on ARCH_RENESAS || COMPILE_TEST 942 select WATCHDOG_CORE 943 help 944 This driver adds watchdog support for the integrated watchdogs in the 945 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 946 947 config RENESAS_RZG2LWDT 948 tristate "Renesas RZ/G2L WDT Watchdog" 949 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 950 depends on PM || COMPILE_TEST 951 select WATCHDOG_CORE 952 help 953 This driver adds watchdog support for the integrated watchdogs in the 954 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 955 956 config RENESAS_RZV2HWDT 957 tristate "Renesas RZ/V2H(P) WDT Watchdog" 958 depends on ARCH_R9A09G057 || COMPILE_TEST 959 depends on PM || COMPILE_TEST 960 select WATCHDOG_CORE 961 help 962 This driver adds watchdog support for the integrated watchdogs in the 963 Renesas RZ/V2H(P) SoCs. These watchdogs can be used to reset a system. 964 965 config ASPEED_WATCHDOG 966 tristate "Aspeed BMC watchdog support" 967 depends on ARCH_ASPEED || COMPILE_TEST 968 select WATCHDOG_CORE 969 help 970 Say Y here to include support for the watchdog timer 971 in Aspeed BMC SoCs. 972 973 This driver is required to reboot the SoC. 974 975 To compile this driver as a module, choose M here: the 976 module will be called aspeed_wdt. 977 978 config STM32_WATCHDOG 979 tristate "STM32 Independent WatchDoG (IWDG) support" 980 depends on ARCH_STM32 || COMPILE_TEST 981 select WATCHDOG_CORE 982 default y 983 help 984 Say Y here to include support for the watchdog timer 985 in stm32 SoCs. 986 987 To compile this driver as a module, choose M here: the 988 module will be called stm32_iwdg. 989 990 config STPMIC1_WATCHDOG 991 tristate "STPMIC1 PMIC watchdog support" 992 depends on MFD_STPMIC1 993 select WATCHDOG_CORE 994 help 995 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 996 If the watchdog timer expires, stpmic1 will shut down all its power 997 supplies. 998 999 To compile this driver as a module, choose M here: the 1000 module will be called spmic1_wdt. 1001 1002 config UNIPHIER_WATCHDOG 1003 tristate "UniPhier watchdog support" 1004 depends on ARCH_UNIPHIER || COMPILE_TEST 1005 depends on OF && MFD_SYSCON 1006 select WATCHDOG_CORE 1007 help 1008 Say Y here to include support watchdog timer embedded 1009 into the UniPhier system. 1010 1011 To compile this driver as a module, choose M here: the 1012 module will be called uniphier_wdt. 1013 1014 config RTD119X_WATCHDOG 1015 bool "Realtek RTD119x/RTD129x watchdog support" 1016 depends on ARCH_REALTEK || COMPILE_TEST 1017 depends on OF 1018 select WATCHDOG_CORE 1019 default ARCH_REALTEK 1020 help 1021 Say Y here to include support for the watchdog timer in 1022 Realtek RTD1295 SoCs. 1023 1024 config REALTEK_OTTO_WDT 1025 tristate "Realtek Otto MIPS watchdog support" 1026 depends on MACH_REALTEK_RTL || COMPILE_TEST 1027 depends on COMMON_CLK 1028 select WATCHDOG_CORE 1029 default MACH_REALTEK_RTL 1030 help 1031 Say Y here to include support for the watchdog timer on Realtek 1032 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1033 notifications and system reset on timeout. 1034 1035 When built as a module this will be called realtek_otto_wdt. 1036 1037 config SPRD_WATCHDOG 1038 tristate "Spreadtrum watchdog support" 1039 depends on ARCH_SPRD || COMPILE_TEST 1040 select WATCHDOG_CORE 1041 help 1042 Say Y here to include watchdog timer supported 1043 by Spreadtrum system. 1044 1045 config PM8916_WATCHDOG 1046 tristate "QCOM PM8916 pmic watchdog" 1047 depends on OF && MFD_SPMI_PMIC 1048 select WATCHDOG_CORE 1049 help 1050 Say Y here to include support watchdog timer embedded into the 1051 pm8916 module. 1052 1053 config VISCONTI_WATCHDOG 1054 tristate "Toshiba Visconti series watchdog support" 1055 depends on ARCH_VISCONTI || COMPILE_TEST 1056 select WATCHDOG_CORE 1057 help 1058 Say Y here to include support for the watchdog timer in Toshiba 1059 Visconti SoCs. 1060 1061 config MSC313E_WATCHDOG 1062 tristate "MStar MSC313e watchdog" 1063 depends on ARCH_MSTARV7 || COMPILE_TEST 1064 select WATCHDOG_CORE 1065 help 1066 Say Y here to include support for the Watchdog timer embedded 1067 into MStar MSC313e chips. This will reboot your system when the 1068 timeout is reached. 1069 1070 To compile this driver as a module, choose M here: the 1071 module will be called msc313e_wdt. 1072 1073 config APPLE_WATCHDOG 1074 tristate "Apple SoC watchdog" 1075 depends on ARCH_APPLE || COMPILE_TEST 1076 select WATCHDOG_CORE 1077 help 1078 Say Y here to include support for the Watchdog found in Apple 1079 SoCs such as the M1. Next to the common watchdog features this 1080 driver is also required in order to reboot these SoCs. 1081 1082 To compile this driver as a module, choose M here: the 1083 module will be called apple_wdt. 1084 1085 config SUNPLUS_WATCHDOG 1086 tristate "Sunplus watchdog support" 1087 depends on ARCH_SUNPLUS || COMPILE_TEST 1088 select WATCHDOG_CORE 1089 help 1090 Say Y here to include support for the watchdog timer 1091 in Sunplus SoCs. 1092 1093 To compile this driver as a module, choose M here: the 1094 module will be called sunplus_wdt. 1095 1096 # X86 (i386 + ia64 + x86_64) Architecture 1097 1098 config ACQUIRE_WDT 1099 tristate "Acquire SBC Watchdog Timer" 1100 depends on X86 1101 help 1102 This is the driver for the hardware watchdog on Single Board 1103 Computers produced by Acquire Inc (and others). This watchdog 1104 simply watches your kernel to make sure it doesn't freeze, and if 1105 it does, it reboots your computer after a certain amount of time. 1106 1107 To compile this driver as a module, choose M here: the 1108 module will be called acquirewdt. 1109 1110 Most people will say N. 1111 1112 config ADVANTECH_WDT 1113 tristate "Advantech SBC Watchdog Timer" 1114 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1115 help 1116 If you are configuring a Linux kernel for the Advantech single-board 1117 computer, say `Y' here to support its built-in watchdog timer 1118 feature. More information can be found at 1119 <https://www.advantech.com.tw/products/> 1120 1121 config ADVANTECH_EC_WDT 1122 tristate "Advantech Embedded Controller Watchdog Timer" 1123 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1124 select ISA_BUS_API 1125 select WATCHDOG_CORE 1126 help 1127 This driver supports Advantech products with ITE based Embedded Controller. 1128 It does not support Advantech products with other ECs or without EC. 1129 1130 config ALIM1535_WDT 1131 tristate "ALi M1535 PMU Watchdog Timer" 1132 depends on (X86 || COMPILE_TEST) && PCI 1133 help 1134 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1135 1136 To compile this driver as a module, choose M here: the 1137 module will be called alim1535_wdt. 1138 1139 Most people will say N. 1140 1141 config ALIM7101_WDT 1142 tristate "ALi M7101 PMU Computer Watchdog" 1143 depends on PCI 1144 help 1145 This is the driver for the hardware watchdog on the ALi M7101 PMU 1146 as used in the x86 Cobalt servers and also found in some 1147 SPARC Netra servers too. 1148 1149 To compile this driver as a module, choose M here: the 1150 module will be called alim7101_wdt. 1151 1152 Most people will say N. 1153 1154 config EBC_C384_WDT 1155 tristate "WinSystems EBC-C384 Watchdog Timer" 1156 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1157 select ISA_BUS_API 1158 select WATCHDOG_CORE 1159 help 1160 Enables watchdog timer support for the watchdog timer on the 1161 WinSystems EBC-C384 motherboard. The timeout may be configured via 1162 the timeout module parameter. 1163 1164 config EXAR_WDT 1165 tristate "Exar Watchdog Timer" 1166 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1167 select WATCHDOG_CORE 1168 help 1169 Enables watchdog timer support for the watchdog timer present 1170 in some Exar/MaxLinear UART chips like the XR28V38x. 1171 1172 To compile this driver as a module, choose M here: the 1173 module will be called exar_wdt. 1174 1175 config F71808E_WDT 1176 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1177 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1178 select WATCHDOG_CORE 1179 help 1180 This is the driver for the hardware watchdog on the Fintek F71808E, 1181 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1182 F81866 Super I/O controllers. 1183 1184 You can compile this driver directly into the kernel, or use 1185 it as a module. The module will be called f71808e_wdt. 1186 1187 config SP5100_TCO 1188 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1189 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1190 select WATCHDOG_CORE 1191 help 1192 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1193 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1194 the machine after its expiration. The expiration time can be 1195 configured with the "heartbeat" parameter. 1196 1197 To compile this driver as a module, choose M here: the 1198 module will be called sp5100_tco. 1199 1200 config GEODE_WDT 1201 tristate "AMD Geode CS5535/CS5536 Watchdog" 1202 depends on CS5535_MFGPT 1203 help 1204 This driver enables a watchdog capability built into the 1205 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1206 processors. This watchdog watches your kernel to make sure 1207 it doesn't freeze, and if it does, it reboots your computer after 1208 a certain amount of time. 1209 1210 You can compile this driver directly into the kernel, or use 1211 it as a module. The module will be called geodewdt. 1212 1213 config SC520_WDT 1214 tristate "AMD Elan SC520 processor Watchdog" 1215 depends on MELAN || COMPILE_TEST 1216 help 1217 This is the driver for the hardware watchdog built in to the 1218 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1219 This watchdog simply watches your kernel to make sure it doesn't 1220 freeze, and if it does, it reboots your computer after a certain 1221 amount of time. 1222 1223 You can compile this driver directly into the kernel, or use 1224 it as a module. The module will be called sc520_wdt. 1225 1226 config SBC_FITPC2_WATCHDOG 1227 tristate "Compulab SBC-FITPC2 watchdog" 1228 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1229 help 1230 This is the driver for the built-in watchdog timer on the fit-PC2, 1231 fit-PC2i, CM-iAM single-board computers made by Compulab. 1232 1233 It's possible to enable the watchdog timer either from BIOS (F2) or 1234 from booted Linux. 1235 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1236 operational range. 1237 1238 Entering BIOS setup temporarily disables watchdog operation regardless 1239 of current state, so system will not be restarted while user is in 1240 BIOS setup. 1241 1242 Once the watchdog is enabled the system will be restarted every 1243 "Watchdog Timer Value" period, so to prevent it user can restart or 1244 disable the watchdog. 1245 1246 To compile this driver as a module, choose M here: the 1247 module will be called sbc_fitpc2_wdt. 1248 1249 Most people will say N. 1250 1251 config EUROTECH_WDT 1252 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1253 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1254 help 1255 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1256 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1257 information are at <http://www.eurotech.it/>. 1258 1259 config IB700_WDT 1260 tristate "IB700 SBC Watchdog Timer" 1261 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1262 help 1263 This is the driver for the hardware watchdog on the IB700 Single 1264 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1265 watchdog simply watches your kernel to make sure it doesn't freeze, 1266 and if it does, it reboots your computer after a certain amount of time. 1267 1268 This driver is like the WDT501 driver but for slightly different 1269 hardware. 1270 1271 To compile this driver as a module, choose M here: the 1272 module will be called ib700wdt. 1273 1274 Most people will say N. 1275 1276 config IBMASR 1277 tristate "IBM Automatic Server Restart" 1278 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1279 help 1280 This is the driver for the IBM Automatic Server Restart watchdog 1281 timer built-in into some eServer xSeries machines. 1282 1283 To compile this driver as a module, choose M here: the 1284 module will be called ibmasr. 1285 1286 config WAFER_WDT 1287 tristate "ICP Single Board Computer Watchdog Timer" 1288 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1289 help 1290 This is a driver for the hardware watchdog on the ICP Single 1291 Board Computer. This driver is working on (at least) the following 1292 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1293 1294 To compile this driver as a module, choose M here: the 1295 module will be called wafer5823wdt. 1296 1297 config I6300ESB_WDT 1298 tristate "Intel 6300ESB Timer/Watchdog" 1299 depends on PCI 1300 select WATCHDOG_CORE 1301 help 1302 Hardware driver for the watchdog timer built into the Intel 1303 6300ESB controller hub. 1304 1305 To compile this driver as a module, choose M here: the 1306 module will be called i6300esb. 1307 1308 config IE6XX_WDT 1309 tristate "Intel Atom E6xx Watchdog" 1310 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1311 select WATCHDOG_CORE 1312 select MFD_CORE 1313 select LPC_SCH 1314 help 1315 Hardware driver for the watchdog timer built into the Intel 1316 Atom E6XX (TunnelCreek) processor. 1317 1318 To compile this driver as a module, choose M here: the 1319 module will be called ie6xx_wdt. 1320 1321 config INTEL_MID_WATCHDOG 1322 tristate "Intel MID Watchdog Timer" 1323 depends on X86_INTEL_MID 1324 select WATCHDOG_CORE 1325 help 1326 Watchdog timer driver built into the Intel SCU for Intel MID 1327 Platforms. 1328 1329 This driver currently supports only the watchdog evolution 1330 implementation in SCU, available for Merrifield generation. 1331 1332 To compile this driver as a module, choose M here. 1333 1334 config ITCO_WDT 1335 tristate "Intel TCO Timer/Watchdog" 1336 depends on X86 && PCI 1337 select WATCHDOG_CORE 1338 depends on I2C || I2C=n 1339 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1340 depends on HAS_IOPORT # for I2C_I801 1341 select LPC_ICH if !EXPERT 1342 select I2C_I801 if !EXPERT && I2C 1343 help 1344 Hardware driver for the intel TCO timer based watchdog devices. 1345 These drivers are included in the Intel 82801 I/O Controller 1346 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1347 controller hub. 1348 1349 The TCO (Total Cost of Ownership) timer is a watchdog timer 1350 that will reboot the machine after its second expiration. The 1351 expiration time can be configured with the "heartbeat" parameter. 1352 1353 On some motherboards the driver may fail to reset the chipset's 1354 NO_REBOOT flag which prevents the watchdog from rebooting the 1355 machine. If this is the case you will get a kernel message like 1356 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1357 1358 To compile this driver as a module, choose M here: the 1359 module will be called iTCO_wdt. 1360 1361 config ITCO_VENDOR_SUPPORT 1362 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1363 depends on ITCO_WDT 1364 help 1365 Add vendor specific support to the intel TCO timer based watchdog 1366 devices. At this moment we only have additional support for some 1367 SuperMicro Inc. motherboards. 1368 1369 config IT8712F_WDT 1370 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1371 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1372 help 1373 This is the driver for the built-in watchdog timer on the IT8712F 1374 Super I/0 chipset used on many motherboards. 1375 1376 If the driver does not work, then make sure that the game port in 1377 the BIOS is enabled. 1378 1379 To compile this driver as a module, choose M here: the 1380 module will be called it8712f_wdt. 1381 1382 config IT87_WDT 1383 tristate "IT87 Watchdog Timer" 1384 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1385 select WATCHDOG_CORE 1386 help 1387 This is the driver for the hardware watchdog on the ITE IT8607, 1388 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1389 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1390 IT8783 Super I/O chips. 1391 1392 This watchdog simply watches your kernel to make sure it doesn't 1393 freeze, and if it does, it reboots your computer after a certain 1394 amount of time. 1395 1396 To compile this driver as a module, choose M here: the module will 1397 be called it87_wdt. 1398 1399 config HP_WATCHDOG 1400 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1401 select WATCHDOG_CORE 1402 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1403 help 1404 A software monitoring watchdog and NMI handling driver. This driver 1405 will detect lockups and provide a stack trace. This is a driver that 1406 will only load on an HP ProLiant system with a minimum of iLO2 support. 1407 To compile this driver as a module, choose M here: the module will be 1408 called hpwdt. 1409 1410 config HPWDT_NMI_DECODING 1411 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1412 depends on X86 && HP_WATCHDOG 1413 default y 1414 help 1415 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1416 "Generate NMI to System" virtual button. When an NMI is claimed 1417 by the driver, panic is called. 1418 1419 config KEMPLD_WDT 1420 tristate "Kontron COM Watchdog Timer" 1421 depends on MFD_KEMPLD 1422 select WATCHDOG_CORE 1423 help 1424 Support for the PLD watchdog on some Kontron ETX and COMexpress 1425 (ETXexpress) modules 1426 1427 This driver can also be built as a module. If so, the module will be 1428 called kempld_wdt. 1429 1430 config SC1200_WDT 1431 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1432 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1433 help 1434 This is a driver for National Semiconductor PC87307/PC97307 hardware 1435 watchdog cards as found on the SC1200. This watchdog is mainly used 1436 for power management purposes and can be used to power down the device 1437 during inactivity periods (includes interrupt activity monitoring). 1438 1439 To compile this driver as a module, choose M here: the 1440 module will be called sc1200wdt. 1441 1442 Most people will say N. 1443 1444 config SCx200_WDT 1445 tristate "National Semiconductor SCx200 Watchdog" 1446 depends on SCx200 && PCI 1447 help 1448 Enable the built-in watchdog timer support on the National 1449 Semiconductor SCx200 processors. 1450 1451 If compiled as a module, it will be called scx200_wdt. 1452 1453 config PC87413_WDT 1454 tristate "NS PC87413 watchdog" 1455 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1456 help 1457 This is the driver for the hardware watchdog on the PC87413 chipset 1458 This watchdog simply watches your kernel to make sure it doesn't 1459 freeze, and if it does, it reboots your computer after a certain 1460 amount of time. 1461 1462 To compile this driver as a module, choose M here: the 1463 module will be called pc87413_wdt. 1464 1465 Most people will say N. 1466 1467 config NV_TCO 1468 tristate "nVidia TCO Timer/Watchdog" 1469 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1470 help 1471 Hardware driver for the TCO timer built into the nVidia Hub family 1472 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1473 watchdog timer that will reboot the machine after its second 1474 expiration. The expiration time can be configured with the 1475 "heartbeat" parameter. 1476 1477 On some motherboards the driver may fail to reset the chipset's 1478 NO_REBOOT flag which prevents the watchdog from rebooting the 1479 machine. If this is the case you will get a kernel message like 1480 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1481 1482 To compile this driver as a module, choose M here: the 1483 module will be called nv_tco. 1484 1485 config RDC321X_WDT 1486 tristate "RDC R-321x SoC watchdog" 1487 depends on X86_RDC321X || COMPILE_TEST 1488 depends on PCI 1489 help 1490 This is the driver for the built in hardware watchdog 1491 in the RDC R-321x SoC. 1492 1493 To compile this driver as a module, choose M here: the 1494 module will be called rdc321x_wdt. 1495 1496 config 60XX_WDT 1497 tristate "SBC-60XX Watchdog Timer" 1498 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1499 help 1500 This driver can be used with the watchdog timer found on some 1501 single board computers, namely the 6010 PII based computer. 1502 It may well work with other cards. It reads port 0x443 to enable 1503 and re-set the watchdog timer, and reads port 0x45 to disable 1504 the watchdog. If you have a card that behave in similar ways, 1505 you can probably make this driver work with your card as well. 1506 1507 You can compile this driver directly into the kernel, or use 1508 it as a module. The module will be called sbc60xxwdt. 1509 1510 config SBC8360_WDT 1511 tristate "SBC8360 Watchdog Timer" 1512 depends on X86_32 1513 help 1514 1515 This is the driver for the hardware watchdog on the SBC8360 Single 1516 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1517 1518 To compile this driver as a module, choose M here: the 1519 module will be called sbc8360. 1520 1521 Most people will say N. 1522 1523 config SBC7240_WDT 1524 tristate "SBC Nano 7240 Watchdog Timer" 1525 depends on X86_32 && !UML 1526 help 1527 This is the driver for the hardware watchdog found on the IEI 1528 single board computers EPIC Nano 7240 (and likely others). This 1529 watchdog simply watches your kernel to make sure it doesn't freeze, 1530 and if it does, it reboots your computer after a certain amount of 1531 time. 1532 1533 To compile this driver as a module, choose M here: the 1534 module will be called sbc7240_wdt. 1535 1536 config CPU5_WDT 1537 tristate "SMA CPU5 Watchdog" 1538 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1539 help 1540 TBD. 1541 To compile this driver as a module, choose M here: the 1542 module will be called cpu5wdt. 1543 1544 config SMSC_SCH311X_WDT 1545 tristate "SMSC SCH311X Watchdog Timer" 1546 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1547 help 1548 This is the driver for the hardware watchdog timer on the 1549 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1550 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1551 serial ports). 1552 1553 To compile this driver as a module, choose M here: the 1554 module will be called sch311x_wdt. 1555 1556 config SMSC37B787_WDT 1557 tristate "Winbond SMsC37B787 Watchdog Timer" 1558 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1559 help 1560 This is the driver for the hardware watchdog component on the 1561 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1562 from Vision Systems and maybe others. 1563 1564 This watchdog simply watches your kernel to make sure it doesn't 1565 freeze, and if it does, it reboots your computer after a certain 1566 amount of time. 1567 1568 Usually a userspace daemon will notify the kernel WDT driver that 1569 userspace is still alive, at regular intervals. 1570 1571 To compile this driver as a module, choose M here: the 1572 module will be called smsc37b787_wdt. 1573 1574 Most people will say N. 1575 1576 config TQMX86_WDT 1577 tristate "TQ-Systems TQMX86 Watchdog Timer" 1578 depends on X86 || COMPILE_TEST 1579 select WATCHDOG_CORE 1580 help 1581 This is the driver for the hardware watchdog timer in the TQMX86 IO 1582 controller found on some of their ComExpress Modules. 1583 1584 To compile this driver as a module, choose M here; the module 1585 will be called tqmx86_wdt. 1586 1587 Most people will say N. 1588 1589 config VIA_WDT 1590 tristate "VIA Watchdog Timer" 1591 depends on (X86 || COMPILE_TEST) && PCI 1592 select WATCHDOG_CORE 1593 help 1594 This is the driver for the hardware watchdog timer on VIA 1595 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1596 1597 To compile this driver as a module, choose M here; the module 1598 will be called via_wdt. 1599 1600 Most people will say N. 1601 1602 config W83627HF_WDT 1603 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1604 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1605 select WATCHDOG_CORE 1606 help 1607 This is the driver for the hardware watchdog on the following 1608 Super I/O chips. 1609 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1610 W83637HF 1611 W83667HG/HG-B 1612 W83687THF 1613 W83697HF 1614 W83697UG 1615 NCT6775 1616 NCT6776 1617 NCT6779 1618 NCT6791 1619 NCT6792 1620 NCT6102D/04D/06D 1621 NCT6116D 1622 1623 This watchdog simply watches your kernel to make sure it doesn't 1624 freeze, and if it does, it reboots your computer after a certain 1625 amount of time. 1626 1627 To compile this driver as a module, choose M here: the 1628 module will be called w83627hf_wdt. 1629 1630 Most people will say N. 1631 1632 config W83877F_WDT 1633 tristate "W83877F (EMACS) Watchdog Timer" 1634 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1635 help 1636 This is the driver for the hardware watchdog on the W83877F chipset 1637 as used in EMACS PC-104 motherboards (and likely others). This 1638 watchdog simply watches your kernel to make sure it doesn't freeze, 1639 and if it does, it reboots your computer after a certain amount of 1640 time. 1641 1642 To compile this driver as a module, choose M here: the 1643 module will be called w83877f_wdt. 1644 1645 Most people will say N. 1646 1647 config W83977F_WDT 1648 tristate "W83977F (PCM-5335) Watchdog Timer" 1649 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1650 help 1651 This is the driver for the hardware watchdog on the W83977F I/O chip 1652 as used in AAEON's PCM-5335 SBC (and likely others). This 1653 watchdog simply watches your kernel to make sure it doesn't freeze, 1654 and if it does, it reboots your computer after a certain amount of 1655 time. 1656 1657 To compile this driver as a module, choose M here: the 1658 module will be called w83977f_wdt. 1659 1660 config MACHZ_WDT 1661 tristate "ZF MachZ Watchdog" 1662 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1663 help 1664 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1665 N. This is the driver for the watchdog timer built-in on that 1666 processor using ZF-Logic interface. This watchdog simply watches 1667 your kernel to make sure it doesn't freeze, and if it does, it 1668 reboots your computer after a certain amount of time. 1669 1670 To compile this driver as a module, choose M here: the 1671 module will be called machzwd. 1672 1673 config SBC_EPX_C3_WATCHDOG 1674 tristate "Winsystems SBC EPX-C3 watchdog" 1675 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1676 help 1677 This is the driver for the built-in watchdog timer on the EPX-C3 1678 Single-board computer made by Winsystems, Inc. 1679 1680 *Note*: This hardware watchdog is not probeable and thus there 1681 is no way to know if writing to its IO address will corrupt 1682 your system or have any real effect. The only way to be sure 1683 that this driver does what you want is to make sure you 1684 are running it on an EPX-C3 from Winsystems with the watchdog 1685 timer at IO address 0x1ee and 0x1ef. It will write to both those 1686 IO ports. Basically, the assumption is made that if you compile 1687 this driver into your kernel and/or load it as a module, that you 1688 know what you are doing and that you are in fact running on an 1689 EPX-C3 board! 1690 1691 To compile this driver as a module, choose M here: the 1692 module will be called sbc_epx_c3. 1693 1694 config INTEL_MEI_WDT 1695 tristate "Intel MEI iAMT Watchdog" 1696 depends on INTEL_MEI && X86 1697 select WATCHDOG_CORE 1698 help 1699 A device driver for the Intel MEI iAMT watchdog. 1700 1701 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1702 Whenever the OS hangs or crashes, iAMT will send an event 1703 to any subscriber to this event. The watchdog doesn't reset the 1704 the platform. 1705 1706 To compile this driver as a module, choose M here: 1707 the module will be called mei_wdt. 1708 1709 config NI903X_WDT 1710 tristate "NI 903x/913x Watchdog" 1711 depends on X86 && ACPI 1712 select WATCHDOG_CORE 1713 help 1714 This is the driver for the watchdog timer on the National Instruments 1715 903x/913x real-time controllers. 1716 1717 To compile this driver as a module, choose M here: the module will be 1718 called ni903x_wdt. 1719 1720 config NIC7018_WDT 1721 tristate "NIC7018 Watchdog" 1722 depends on X86 && ACPI 1723 select WATCHDOG_CORE 1724 help 1725 Support for National Instruments NIC7018 Watchdog. 1726 1727 To compile this driver as a module, choose M here: the module will be 1728 called nic7018_wdt. 1729 1730 config SIEMENS_SIMATIC_IPC_WDT 1731 tristate "Siemens Simatic IPC Watchdog" 1732 depends on SIEMENS_SIMATIC_IPC && PCI 1733 default y 1734 select WATCHDOG_CORE 1735 select P2SB if X86 1736 help 1737 This driver adds support for several watchdogs found in Industrial 1738 PCs from Siemens. 1739 1740 To compile this driver as a module, choose M here: the module will be 1741 called simatic-ipc-wdt. 1742 1743 # M68K Architecture 1744 1745 config M54xx_WATCHDOG 1746 tristate "MCF54xx watchdog support" 1747 depends on M548x 1748 help 1749 To compile this driver as a module, choose M here: the 1750 module will be called m54xx_wdt. 1751 1752 # MicroBlaze Architecture 1753 1754 # MIPS Architecture 1755 1756 config ATH79_WDT 1757 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1758 depends on ATH79 || (ARM && COMPILE_TEST) 1759 help 1760 Hardware driver for the built-in watchdog timer on the Atheros 1761 AR71XX/AR724X/AR913X SoCs. 1762 1763 config BCM47XX_WDT 1764 tristate "Broadcom BCM47xx Watchdog Timer" 1765 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1766 select WATCHDOG_CORE 1767 help 1768 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1769 1770 config RC32434_WDT 1771 tristate "IDT RC32434 SoC Watchdog Timer" 1772 depends on MIKROTIK_RB532 1773 help 1774 Hardware driver for the IDT RC32434 SoC built-in 1775 watchdog timer. 1776 1777 To compile this driver as a module, choose M here: the 1778 module will be called rc32434_wdt. 1779 1780 config INDYDOG 1781 tristate "Indy/I2 Hardware Watchdog" 1782 depends on SGI_HAS_INDYDOG 1783 help 1784 Hardware driver for the Indy's/I2's watchdog. This is a 1785 watchdog timer that will reboot the machine after a 60 second 1786 timer expired and no process has written to /dev/watchdog during 1787 that time. 1788 1789 config JZ4740_WDT 1790 tristate "Ingenic jz4740 SoC hardware watchdog" 1791 depends on MIPS || COMPILE_TEST 1792 depends on COMMON_CLK 1793 select WATCHDOG_CORE 1794 select MFD_SYSCON 1795 help 1796 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1797 1798 config WDT_MTX1 1799 tristate "MTX-1 Hardware Watchdog" 1800 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1801 help 1802 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1803 will reboot the machine after a 100 seconds timer expired. 1804 1805 config SIBYTE_WDOG 1806 tristate "Sibyte SoC hardware watchdog" 1807 depends on CPU_SB1 1808 help 1809 Watchdog driver for the built in watchdog hardware in Sibyte 1810 SoC processors. There are apparently two watchdog timers 1811 on such processors; this driver supports only the first one, 1812 because currently Linux only supports exporting one watchdog 1813 to userspace. 1814 1815 To compile this driver as a loadable module, choose M here. 1816 The module will be called sb_wdog. 1817 1818 config TXX9_WDT 1819 tristate "Toshiba TXx9 Watchdog Timer" 1820 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1821 select WATCHDOG_CORE 1822 help 1823 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1824 1825 config OCTEON_WDT 1826 tristate "Cavium OCTEON SOC family Watchdog Timer" 1827 depends on CAVIUM_OCTEON_SOC 1828 default y 1829 select WATCHDOG_CORE 1830 select EXPORT_UASM if OCTEON_WDT = m 1831 help 1832 Hardware driver for OCTEON's on chip watchdog timer. 1833 Enables the watchdog for all cores running Linux. It 1834 installs a NMI handler and pokes the watchdog based on an 1835 interrupt. On first expiration of the watchdog, the 1836 interrupt handler pokes it. The second expiration causes an 1837 NMI that prints a message. The third expiration causes a 1838 global soft reset. 1839 1840 When userspace has /dev/watchdog open, no poking is done 1841 from the first interrupt, it is then only poked when the 1842 device is written. 1843 1844 config MARVELL_GTI_WDT 1845 tristate "Marvell GTI Watchdog driver" 1846 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1847 default y 1848 select WATCHDOG_CORE 1849 help 1850 Marvell GTI hardware supports watchdog timer. First timeout 1851 works as watchdog pretimeout and installed interrupt handler 1852 will be called on first timeout. Hardware can generate interrupt 1853 to SCP on second timeout but it is not enabled, so second 1854 timeout is ignored. If device poke does not happen then system 1855 will reboot on third timeout. 1856 1857 config BCM2835_WDT 1858 tristate "Broadcom BCM2835 hardware watchdog" 1859 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1860 select WATCHDOG_CORE 1861 help 1862 Watchdog driver for the built in watchdog hardware in Broadcom 1863 BCM2835 SoC. 1864 1865 To compile this driver as a loadable module, choose M here. 1866 The module will be called bcm2835_wdt. 1867 1868 config BCM_KONA_WDT 1869 tristate "BCM Kona Watchdog" 1870 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1871 select WATCHDOG_CORE 1872 help 1873 Support for the watchdog timer on the following Broadcom BCM281xx 1874 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1875 BCM28155 variants. 1876 1877 Say 'Y' or 'M' here to enable the driver. The module will be called 1878 bcm_kona_wdt. 1879 1880 config BCM_KONA_WDT_DEBUG 1881 bool "DEBUGFS support for BCM Kona Watchdog" 1882 depends on BCM_KONA_WDT || COMPILE_TEST 1883 help 1884 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1885 access to the driver's internal data structures as well as watchdog 1886 timer hardware registres. 1887 1888 If in doubt, say 'N'. 1889 1890 config BCM7038_WDT 1891 tristate "BCM63xx/BCM7038 Watchdog" 1892 select WATCHDOG_CORE 1893 depends on HAS_IOMEM 1894 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1895 help 1896 Watchdog driver for the built-in hardware in Broadcom 7038 and 1897 later SoCs used in set-top boxes. BCM7038 was made public 1898 during the 2004 CES, and since then, many Broadcom chips use this 1899 watchdog block, including some cable modem chips and DSL (63xx) 1900 chips. 1901 1902 config IMGPDC_WDT 1903 tristate "Imagination Technologies PDC Watchdog Timer" 1904 depends on HAS_IOMEM 1905 depends on MIPS || COMPILE_TEST 1906 select WATCHDOG_CORE 1907 help 1908 Driver for Imagination Technologies PowerDown Controller 1909 Watchdog Timer. 1910 1911 To compile this driver as a loadable module, choose M here. 1912 The module will be called imgpdc_wdt. 1913 1914 config LANTIQ_WDT 1915 tristate "Lantiq SoC watchdog" 1916 depends on LANTIQ 1917 select WATCHDOG_CORE 1918 help 1919 Hardware driver for the Lantiq SoC Watchdog Timer. 1920 1921 config LOONGSON1_WDT 1922 tristate "Loongson1 SoC hardware watchdog" 1923 depends on MACH_LOONGSON32 || COMPILE_TEST 1924 select WATCHDOG_CORE 1925 help 1926 Hardware driver for the Loongson1 SoC Watchdog Timer. 1927 1928 config RALINK_WDT 1929 tristate "Ralink SoC watchdog" 1930 select WATCHDOG_CORE 1931 depends on RALINK 1932 help 1933 Hardware driver for the Ralink SoC Watchdog Timer. 1934 1935 config GXP_WATCHDOG 1936 tristate "HPE GXP watchdog support" 1937 depends on ARCH_HPE_GXP || COMPILE_TEST 1938 select WATCHDOG_CORE 1939 help 1940 Say Y here to include support for the watchdog timer 1941 in HPE GXP SoCs. 1942 1943 To compile this driver as a module, choose M here. 1944 The module will be called gxp-wdt. 1945 1946 config MT7621_WDT 1947 tristate "Mediatek SoC watchdog" 1948 select WATCHDOG_CORE 1949 select REGMAP_MMIO 1950 select MFD_SYSCON 1951 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1952 help 1953 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1954 1955 config PIC32_WDT 1956 tristate "Microchip PIC32 hardware watchdog" 1957 select WATCHDOG_CORE 1958 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1959 help 1960 Watchdog driver for the built in watchdog hardware in a PIC32. 1961 1962 Configuration bits must be set appropriately for the watchdog to be 1963 controlled by this driver. 1964 1965 To compile this driver as a loadable module, choose M here. 1966 The module will be called pic32-wdt. 1967 1968 config PIC32_DMT 1969 tristate "Microchip PIC32 Deadman Timer" 1970 select WATCHDOG_CORE 1971 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1972 help 1973 Watchdog driver for PIC32 instruction fetch counting timer. This 1974 specific timer is typically be used in mission critical and safety 1975 critical applications, where any single failure of the software 1976 functionality and sequencing must be detected. 1977 1978 To compile this driver as a loadable module, choose M here. 1979 The module will be called pic32-dmt. 1980 1981 # PARISC Architecture 1982 1983 # POWERPC Architecture 1984 1985 config GEF_WDT 1986 tristate "GE Watchdog Timer" 1987 depends on GE_FPGA 1988 help 1989 Watchdog timer found in a number of GE single board computers. 1990 1991 config MPC5200_WDT 1992 bool "MPC52xx Watchdog Timer" 1993 depends on PPC_MPC52xx || COMPILE_TEST 1994 help 1995 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1996 1997 config 8xxx_WDT 1998 tristate "MPC8xxx Platform Watchdog Timer" 1999 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2000 select WATCHDOG_CORE 2001 help 2002 This driver is for a SoC level watchdog that exists on some 2003 Freescale PowerPC processors. So far this driver supports: 2004 - MPC8xx watchdogs 2005 - MPC83xx watchdogs 2006 - MPC86xx watchdogs 2007 2008 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2009 2010 config PIKA_WDT 2011 tristate "PIKA FPGA Watchdog" 2012 depends on WARP || (PPC64 && COMPILE_TEST) 2013 default y 2014 help 2015 This enables the watchdog in the PIKA FPGA. Currently used on 2016 the Warp platform. 2017 2018 config BOOKE_WDT 2019 tristate "PowerPC Book-E Watchdog Timer" 2020 depends on BOOKE || 4xx 2021 select WATCHDOG_CORE 2022 help 2023 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2024 MPC85xx SOCs and the IBM PowerPC 440. 2025 2026 Please see Documentation/watchdog/watchdog-api.rst for 2027 more information. 2028 2029 config BOOKE_WDT_DEFAULT_TIMEOUT 2030 int "PowerPC Book-E Watchdog Timer Default Timeout" 2031 depends on BOOKE_WDT 2032 default 38 if PPC_E500 2033 range 0 63 if PPC_E500 2034 default 3 if !PPC_E500 2035 range 0 3 if !PPC_E500 2036 help 2037 Select the default watchdog timer period to be used by the PowerPC 2038 Book-E watchdog driver. A watchdog "event" occurs when the bit 2039 position represented by this number transitions from zero to one. 2040 2041 For Freescale Book-E processors, this is a number between 0 and 63. 2042 For other Book-E processors, this is a number between 0 and 3. 2043 2044 The value can be overridden by the wdt_period command-line parameter. 2045 2046 config MEN_A21_WDT 2047 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2048 select WATCHDOG_CORE 2049 depends on GPIOLIB || COMPILE_TEST 2050 help 2051 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2052 2053 The driver can also be built as a module. If so, the module will be 2054 called mena21_wdt. 2055 2056 If unsure select N here. 2057 2058 # PPC64 Architecture 2059 2060 config PSERIES_WDT 2061 tristate "POWER Architecture Platform Watchdog Timer" 2062 depends on PPC_PSERIES 2063 select WATCHDOG_CORE 2064 help 2065 Driver for virtual watchdog timers provided by PAPR 2066 hypervisors (e.g. PowerVM, KVM). 2067 2068 config WATCHDOG_RTAS 2069 tristate "RTAS watchdog" 2070 depends on PPC_RTAS 2071 help 2072 This driver adds watchdog support for the RTAS watchdog. 2073 2074 To compile this driver as a module, choose M here. The module 2075 will be called wdrtas. 2076 2077 # RISC-V Architecture 2078 2079 config STARFIVE_WATCHDOG 2080 tristate "StarFive Watchdog support" 2081 depends on ARCH_STARFIVE || COMPILE_TEST 2082 select WATCHDOG_CORE 2083 default ARCH_STARFIVE 2084 help 2085 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2086 SoC. This driver can also be built as a module if choose M. 2087 2088 # S390 Architecture 2089 2090 config DIAG288_WATCHDOG 2091 tristate "System z diag288 Watchdog" 2092 depends on S390 2093 select WATCHDOG_CORE 2094 help 2095 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2096 provide a virtual watchdog timer to their guest that cause a 2097 user define Control Program command to be executed after a 2098 timeout. 2099 LPAR provides a very similar interface. This driver handles 2100 both. 2101 2102 To compile this driver as a module, choose M here. The module 2103 will be called diag288_wdt. 2104 2105 # SUPERH (sh + sh64) Architecture 2106 2107 config SH_WDT 2108 tristate "SuperH Watchdog" 2109 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2110 select WATCHDOG_CORE 2111 help 2112 This driver adds watchdog support for the integrated watchdog in the 2113 SuperH processors. If you have one of these processors and wish 2114 to have watchdog support enabled, say Y, otherwise say N. 2115 2116 As a side note, saying Y here will automatically boost HZ to 1000 2117 so that the timer has a chance to clear the overflow counter. On 2118 slower systems (such as the SH-2 and SH-3) this will likely yield 2119 some performance issues. As such, the WDT should be avoided here 2120 unless it is absolutely necessary. 2121 2122 To compile this driver as a module, choose M here: the 2123 module will be called shwdt. 2124 2125 # SPARC Architecture 2126 2127 # SPARC64 Architecture 2128 2129 config WATCHDOG_CP1XXX 2130 tristate "CP1XXX Hardware Watchdog support" 2131 depends on SPARC64 && PCI 2132 help 2133 This is the driver for the hardware watchdog timers present on 2134 Sun Microsystems CompactPCI models CP1400 and CP1500. 2135 2136 To compile this driver as a module, choose M here: the 2137 module will be called cpwatchdog. 2138 2139 If you do not have a CompactPCI model CP1400 or CP1500, or 2140 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2141 you should say N to this option. 2142 2143 config WATCHDOG_RIO 2144 tristate "RIO Hardware Watchdog support" 2145 depends on SPARC64 && PCI 2146 help 2147 Say Y here to support the hardware watchdog capability on Sun RIO 2148 machines. The watchdog timeout period is normally one minute but 2149 can be changed with a boot-time parameter. 2150 2151 config WATCHDOG_SUN4V 2152 tristate "Sun4v Watchdog support" 2153 select WATCHDOG_CORE 2154 depends on SPARC64 2155 help 2156 Say Y here to support the hypervisor watchdog capability embedded 2157 in the SPARC sun4v architecture. 2158 2159 To compile this driver as a module, choose M here. The module will 2160 be called sun4v_wdt. 2161 2162 # XTENSA Architecture 2163 2164 # Xen Architecture 2165 2166 config XEN_WDT 2167 tristate "Xen Watchdog support" 2168 depends on XEN 2169 select WATCHDOG_CORE 2170 help 2171 Say Y here to support the hypervisor watchdog capability provided 2172 by Xen 4.0 and newer. The watchdog timeout period is normally one 2173 minute but can be changed with a boot-time parameter. 2174 2175 config UML_WATCHDOG 2176 tristate "UML watchdog" 2177 depends on UML || COMPILE_TEST 2178 2179 # 2180 # ISA-based Watchdog Cards 2181 # 2182 2183 comment "ISA-based Watchdog Cards" 2184 depends on ISA 2185 2186 config PCWATCHDOG 2187 tristate "Berkshire Products ISA-PC Watchdog" 2188 depends on ISA 2189 help 2190 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2191 This card simply watches your kernel to make sure it doesn't freeze, 2192 and if it does, it reboots your computer after a certain amount of 2193 time. This driver is like the WDT501 driver but for different 2194 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2195 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2196 2197 To compile this driver as a module, choose M here: the 2198 module will be called pcwd. 2199 2200 Most people will say N. 2201 2202 config MIXCOMWD 2203 tristate "Mixcom Watchdog" 2204 depends on ISA 2205 help 2206 This is a driver for the Mixcom hardware watchdog cards. This 2207 watchdog simply watches your kernel to make sure it doesn't freeze, 2208 and if it does, it reboots your computer after a certain amount of 2209 time. 2210 2211 To compile this driver as a module, choose M here: the 2212 module will be called mixcomwd. 2213 2214 Most people will say N. 2215 2216 config WDT 2217 tristate "WDT Watchdog timer" 2218 depends on ISA 2219 help 2220 If you have a WDT500P or WDT501P watchdog board, say Y here, 2221 otherwise N. It is not possible to probe for this board, which means 2222 that you have to inform the kernel about the IO port and IRQ that 2223 is needed (you can do this via the io and irq parameters) 2224 2225 To compile this driver as a module, choose M here: the 2226 module will be called wdt. 2227 2228 # 2229 # PCI-based Watchdog Cards 2230 # 2231 2232 comment "PCI-based Watchdog Cards" 2233 depends on PCI 2234 2235 config PCIPCWATCHDOG 2236 tristate "Berkshire Products PCI-PC Watchdog" 2237 depends on PCI && HAS_IOPORT 2238 help 2239 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2240 This card simply watches your kernel to make sure it doesn't freeze, 2241 and if it does, it reboots your computer after a certain amount of 2242 time. The card can also monitor the internal temperature of the PC. 2243 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2244 2245 To compile this driver as a module, choose M here: the 2246 module will be called pcwd_pci. 2247 2248 Most people will say N. 2249 2250 config WDTPCI 2251 tristate "PCI-WDT500/501 Watchdog timer" 2252 depends on PCI && HAS_IOPORT 2253 help 2254 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2255 2256 If you have a PCI-WDT501 watchdog board then you can enable the 2257 temperature sensor by setting the type parameter to 501. 2258 2259 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2260 can do this via the tachometer parameter. Only do this if you have a 2261 fan tachometer actually set up. 2262 2263 To compile this driver as a module, choose M here: the 2264 module will be called wdt_pci. 2265 2266 # 2267 # USB-based Watchdog Cards 2268 # 2269 2270 comment "USB-based Watchdog Cards" 2271 depends on USB 2272 2273 config USBPCWATCHDOG 2274 tristate "Berkshire Products USB-PC Watchdog" 2275 depends on USB 2276 help 2277 This is the driver for the Berkshire Products USB-PC Watchdog card. 2278 This card simply watches your kernel to make sure it doesn't freeze, 2279 and if it does, it reboots your computer after a certain amount of 2280 time. The card can also monitor the internal temperature of the PC. 2281 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2282 2283 To compile this driver as a module, choose M here: the 2284 module will be called pcwd_usb. 2285 2286 Most people will say N. 2287 2288 config KEEMBAY_WATCHDOG 2289 tristate "Intel Keem Bay SoC non-secure watchdog" 2290 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2291 select WATCHDOG_CORE 2292 help 2293 This option enable support for an In-secure watchdog timer driver for 2294 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2295 count unit. An interrupt will be triggered, when the count crosses 2296 the threshold configured in the register. 2297 2298 To compile this driver as a module, choose M here: the 2299 module will be called keembay_wdt. 2300 2301 endif # WATCHDOG 2302