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 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can 26 also monitor NFS connections and can reboot the machine when the process 27 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 76comment "Watchdog Pretimeout Governors" 77 78config WATCHDOG_PRETIMEOUT_GOV 79 bool "Enable watchdog pretimeout governors" 80 depends on WATCHDOG_CORE 81 help 82 The option allows to select watchdog pretimeout governors. 83 84config WATCHDOG_PRETIMEOUT_GOV_SEL 85 tristate 86 depends on WATCHDOG_PRETIMEOUT_GOV 87 default m 88 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n 89 90if WATCHDOG_PRETIMEOUT_GOV 91 92config WATCHDOG_PRETIMEOUT_GOV_NOOP 93 tristate "Noop watchdog pretimeout governor" 94 depends on WATCHDOG_CORE 95 default WATCHDOG_CORE 96 help 97 Noop watchdog pretimeout governor, only an informational 98 message is added to kernel log buffer. 99 100config WATCHDOG_PRETIMEOUT_GOV_PANIC 101 tristate "Panic watchdog pretimeout governor" 102 depends on WATCHDOG_CORE 103 default WATCHDOG_CORE 104 help 105 Panic watchdog pretimeout governor, on watchdog pretimeout 106 event put the kernel into panic. 107 108choice 109 prompt "Default Watchdog Pretimeout Governor" 110 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 111 help 112 This option selects a default watchdog pretimeout governor. 113 The governor takes its action, if a watchdog is capable 114 to report a pretimeout event. 115 116config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 117 bool "noop" 118 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP 119 help 120 Use noop watchdog pretimeout governor by default. If noop 121 governor is selected by a user, write a short message to 122 the kernel log buffer and don't do any system changes. 123 124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 125 bool "panic" 126 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC 127 help 128 Use panic watchdog pretimeout governor by default, if 129 a watchdog pretimeout event happens, consider that 130 a watchdog feeder is dead and reboot is unavoidable. 131 132endchoice 133 134endif # WATCHDOG_PRETIMEOUT_GOV 135 136# 137# General Watchdog drivers 138# 139 140comment "Watchdog Device Drivers" 141 142# Architecture Independent 143 144config SOFT_WATCHDOG 145 tristate "Software watchdog" 146 select WATCHDOG_CORE 147 help 148 A software monitoring watchdog. This will fail to reboot your system 149 from some situations that the hardware watchdog will recover 150 from. Equally it's a lot cheaper to install. 151 152 To compile this driver as a module, choose M here: the 153 module will be called softdog. 154 155config SOFT_WATCHDOG_PRETIMEOUT 156 bool "Software watchdog pretimeout governor support" 157 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 158 help 159 Enable this if you want to use pretimeout governors with the software 160 watchdog. Be aware that governors might affect the watchdog because it 161 is purely software, e.g. the panic governor will stall it! 162 163config BD70528_WATCHDOG 164 tristate "ROHM BD70528 PMIC Watchdog" 165 depends on MFD_ROHM_BD70528 166 select WATCHDOG_CORE 167 help 168 Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger 169 cause system reset. 170 171 Say Y here to include support for the ROHM BD70528 watchdog. 172 Alternatively say M to compile the driver as a module, 173 which will be called bd70528_wdt. 174 175config DA9052_WATCHDOG 176 tristate "Dialog DA9052 Watchdog" 177 depends on PMIC_DA9052 || COMPILE_TEST 178 select WATCHDOG_CORE 179 help 180 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 181 cause system reset. 182 183 Say Y here to include support for the DA9052 watchdog. 184 Alternatively say M to compile the driver as a module, 185 which will be called da9052_wdt. 186 187config DA9055_WATCHDOG 188 tristate "Dialog Semiconductor DA9055 Watchdog" 189 depends on MFD_DA9055 || COMPILE_TEST 190 select WATCHDOG_CORE 191 help 192 If you say yes here you get support for watchdog on the Dialog 193 Semiconductor DA9055 PMIC. 194 195 This driver can also be built as a module. If so, the module 196 will be called da9055_wdt. 197 198config DA9063_WATCHDOG 199 tristate "Dialog DA9063 Watchdog" 200 depends on MFD_DA9063 || COMPILE_TEST 201 select WATCHDOG_CORE 202 help 203 Support for the watchdog in the DA9063 PMIC. 204 205 This driver can be built as a module. The module name is da9063_wdt. 206 207config DA9062_WATCHDOG 208 tristate "Dialog DA9062/61 Watchdog" 209 depends on MFD_DA9062 || COMPILE_TEST 210 depends on I2C 211 select WATCHDOG_CORE 212 help 213 Support for the watchdog in the DA9062 and DA9061 PMICs. 214 215 This driver can be built as a module. The module name is da9062_wdt. 216 217config GPIO_WATCHDOG 218 tristate "Watchdog device controlled through GPIO-line" 219 depends on OF_GPIO 220 select WATCHDOG_CORE 221 help 222 If you say yes here you get support for watchdog device 223 controlled through GPIO-line. 224 225config GPIO_WATCHDOG_ARCH_INITCALL 226 bool "Register the watchdog as early as possible" 227 depends on GPIO_WATCHDOG=y 228 help 229 In some situations, the default initcall level (module_init) 230 in not early enough in the boot process to avoid the watchdog 231 to be triggered. 232 If you say yes here, the initcall level would be raised to 233 arch_initcall. 234 If in doubt, say N. 235 236config MENF21BMC_WATCHDOG 237 tristate "MEN 14F021P00 BMC Watchdog" 238 depends on MFD_MENF21BMC || COMPILE_TEST 239 depends on I2C 240 select WATCHDOG_CORE 241 help 242 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 243 244 This driver can also be built as a module. If so the module 245 will be called menf21bmc_wdt. 246 247config MENZ069_WATCHDOG 248 tristate "MEN 16Z069 Watchdog" 249 depends on MCB 250 select WATCHDOG_CORE 251 help 252 Say Y here to include support for the MEN 16Z069 Watchdog. 253 254 This driver can also be built as a module. If so the module 255 will be called menz069_wdt. 256 257config TANGOX_WATCHDOG 258 tristate "Sigma Designs SMP86xx/SMP87xx watchdog" 259 select WATCHDOG_CORE 260 depends on ARCH_TANGO || COMPILE_TEST 261 depends on HAS_IOMEM 262 help 263 Support for the watchdog in Sigma Designs SMP86xx (tango3) 264 and SMP87xx (tango4) family chips. 265 266 This driver can be built as a module. The module name is tangox_wdt. 267 268config WDAT_WDT 269 tristate "ACPI Watchdog Action Table (WDAT)" 270 depends on ACPI 271 select WATCHDOG_CORE 272 select ACPI_WATCHDOG 273 help 274 This driver adds support for systems with ACPI Watchdog Action 275 Table (WDAT) table. Servers typically have this but it can be 276 found on some desktop machines as well. This driver will take 277 over the native iTCO watchdog driver found on many Intel CPUs. 278 279 To compile this driver as module, choose M here: the module will 280 be called wdat_wdt. 281 282config WM831X_WATCHDOG 283 tristate "WM831x watchdog" 284 depends on MFD_WM831X 285 select WATCHDOG_CORE 286 help 287 Support for the watchdog in the WM831x AudioPlus PMICs. When 288 the watchdog triggers the system will be reset. 289 290config WM8350_WATCHDOG 291 tristate "WM8350 watchdog" 292 depends on MFD_WM8350 293 select WATCHDOG_CORE 294 help 295 Support for the watchdog in the WM8350 AudioPlus PMIC. When 296 the watchdog triggers the system will be reset. 297 298config XILINX_WATCHDOG 299 tristate "Xilinx Watchdog timer" 300 depends on HAS_IOMEM 301 select WATCHDOG_CORE 302 help 303 Watchdog driver for the xps_timebase_wdt ip core. 304 305 To compile this driver as a module, choose M here: the 306 module will be called of_xilinx_wdt. 307 308config ZIIRAVE_WATCHDOG 309 tristate "Zodiac RAVE Watchdog Timer" 310 depends on I2C 311 select WATCHDOG_CORE 312 help 313 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 314 Processor. 315 316 To compile this driver as a module, choose M here: the 317 module will be called ziirave_wdt. 318 319config RAVE_SP_WATCHDOG 320 tristate "RAVE SP Watchdog timer" 321 depends on RAVE_SP_CORE 322 depends on NVMEM || !NVMEM 323 select WATCHDOG_CORE 324 help 325 Support for the watchdog on RAVE SP device. 326 327config MLX_WDT 328 tristate "Mellanox Watchdog" 329 depends on MELLANOX_PLATFORM 330 select WATCHDOG_CORE 331 select REGMAP 332 help 333 This is the driver for the hardware watchdog on Mellanox systems. 334 If you are going to use it, say Y here, otherwise N. 335 This driver can be used together with the watchdog daemon. 336 It can also watch your kernel to make sure it doesn't freeze, 337 and if it does, it reboots your system after a certain amount of 338 time. 339 340 To compile this driver as a module, choose M here: the 341 module will be called mlx-wdt. 342 343config SL28CPLD_WATCHDOG 344 tristate "Kontron sl28cpld Watchdog" 345 depends on MFD_SL28CPLD || COMPILE_TEST 346 select WATCHDOG_CORE 347 help 348 Say Y here to include support for the watchdog timer 349 on the Kontron sl28 CPLD. 350 351 To compile this driver as a module, choose M here: the 352 module will be called sl28cpld_wdt. 353 354# ALPHA Architecture 355 356# ARM Architecture 357 358config ARM_SP805_WATCHDOG 359 tristate "ARM SP805 Watchdog" 360 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 361 select WATCHDOG_CORE 362 help 363 ARM Primecell SP805 Watchdog timer. This will reboot your system when 364 the timeout is reached. 365 366config ARM_SBSA_WATCHDOG 367 tristate "ARM SBSA Generic Watchdog" 368 depends on ARM64 369 depends on ARM_ARCH_TIMER 370 select WATCHDOG_CORE 371 help 372 ARM SBSA Generic Watchdog has two stage timeouts: 373 the first signal (WS0) is for alerting the system by interrupt, 374 the second one (WS1) is a real hardware reset. 375 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 376 377 This driver can operate ARM SBSA Generic Watchdog as a single stage 378 or a two stages watchdog, it depends on the module parameter "action". 379 380 Note: the maximum timeout in the two stages mode is half of that in 381 the single stage mode. 382 383 To compile this driver as module, choose M here: The module 384 will be called sbsa_gwdt. 385 386config ARMADA_37XX_WATCHDOG 387 tristate "Armada 37xx watchdog" 388 depends on ARCH_MVEBU || COMPILE_TEST 389 depends on HAS_IOMEM 390 select MFD_SYSCON 391 select WATCHDOG_CORE 392 help 393 Say Y here to include support for the watchdog timer found on 394 Marvell Armada 37xx SoCs. 395 To compile this driver as a module, choose M here: the 396 module will be called armada_37xx_wdt. 397 398config ASM9260_WATCHDOG 399 tristate "Alphascale ASM9260 watchdog" 400 depends on MACH_ASM9260 || COMPILE_TEST 401 depends on OF 402 select WATCHDOG_CORE 403 select RESET_CONTROLLER 404 help 405 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 406 system when the timeout is reached. 407 408config AT91RM9200_WATCHDOG 409 tristate "AT91RM9200 watchdog" 410 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 411 help 412 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 413 system when the timeout is reached. 414 415config AT91SAM9X_WATCHDOG 416 tristate "AT91SAM9X / AT91CAP9 watchdog" 417 depends on ARCH_AT91 || COMPILE_TEST 418 select WATCHDOG_CORE 419 help 420 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 421 reboot your system when the timeout is reached. 422 423config SAMA5D4_WATCHDOG 424 tristate "Atmel SAMA5D4 Watchdog Timer" 425 depends on ARCH_AT91 || COMPILE_TEST 426 select WATCHDOG_CORE 427 help 428 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 429 Its Watchdog Timer Mode Register can be written more than once. 430 This will reboot your system when the timeout is reached. 431 432config CADENCE_WATCHDOG 433 tristate "Cadence Watchdog Timer" 434 depends on HAS_IOMEM 435 select WATCHDOG_CORE 436 help 437 Say Y here if you want to include support for the watchdog 438 timer in the Xilinx Zynq. 439 440config 21285_WATCHDOG 441 tristate "DC21285 watchdog" 442 depends on FOOTBRIDGE 443 help 444 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 445 here if you wish to use this. Alternatively say M to compile the 446 driver as a module, which will be called wdt285. 447 448 This driver does not work on all machines. In particular, early CATS 449 boards have hardware problems that will cause the machine to simply 450 lock up if the watchdog fires. 451 452 "If in doubt, leave it out" - say N. 453 454config 977_WATCHDOG 455 tristate "NetWinder WB83C977 watchdog" 456 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 457 help 458 Say Y here to include support for the WB977 watchdog included in 459 NetWinder machines. Alternatively say M to compile the driver as 460 a module, which will be called wdt977. 461 462 Not sure? It's safe to say N. 463 464config FTWDT010_WATCHDOG 465 tristate "Faraday Technology FTWDT010 watchdog" 466 depends on ARM || COMPILE_TEST 467 select WATCHDOG_CORE 468 default ARCH_GEMINI 469 help 470 Say Y here if to include support for the Faraday Technology 471 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 472 family of devices. 473 474 To compile this driver as a module, choose M here: the 475 module will be called ftwdt010_wdt. 476 477config IXP4XX_WATCHDOG 478 tristate "IXP4xx Watchdog" 479 depends on ARCH_IXP4XX 480 help 481 Say Y here if to include support for the watchdog timer 482 in the Intel IXP4xx network processors. This driver can 483 be built as a module by choosing M. The module will 484 be called ixp4xx_wdt. 485 486 Note: The internal IXP4xx watchdog does a soft CPU reset 487 which doesn't reset any peripherals. There are circumstances 488 where the watchdog will fail to reset the board correctly 489 (e.g., if the boot ROM is in an unreadable state). 490 491 Say N if you are unsure. 492 493config S3C2410_WATCHDOG 494 tristate "S3C2410 Watchdog" 495 depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \ 496 COMPILE_TEST 497 select WATCHDOG_CORE 498 select MFD_SYSCON if ARCH_EXYNOS 499 help 500 Watchdog timer block in the Samsung SoCs. This will reboot 501 the system when the timer expires with the watchdog enabled. 502 503 The driver is limited by the speed of the system's PCLK 504 signal, so with reasonably fast systems (PCLK around 50-66MHz) 505 then watchdog intervals of over approximately 20seconds are 506 unavailable. 507 508 The driver can be built as a module by choosing M, and will 509 be called s3c2410_wdt 510 511config SA1100_WATCHDOG 512 tristate "SA1100/PXA2xx watchdog" 513 depends on ARCH_SA1100 || ARCH_PXA 514 help 515 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 516 reboot your system when timeout is reached. 517 518 NOTE: once enabled, this timer cannot be disabled. 519 520 To compile this driver as a module, choose M here: the 521 module will be called sa1100_wdt. 522 523config DW_WATCHDOG 524 tristate "Synopsys DesignWare watchdog" 525 depends on HAS_IOMEM 526 select WATCHDOG_CORE 527 help 528 Say Y here if to include support for the Synopsys DesignWare 529 watchdog timer found in many chips. 530 To compile this driver as a module, choose M here: the 531 module will be called dw_wdt. 532 533config EP93XX_WATCHDOG 534 tristate "EP93xx Watchdog" 535 depends on ARCH_EP93XX || COMPILE_TEST 536 select WATCHDOG_CORE 537 help 538 Say Y here if to include support for the watchdog timer 539 embedded in the Cirrus Logic EP93xx family of devices. 540 541 To compile this driver as a module, choose M here: the 542 module will be called ep93xx_wdt. 543 544config OMAP_WATCHDOG 545 tristate "OMAP Watchdog" 546 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 547 select WATCHDOG_CORE 548 help 549 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 550 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 551 552config PNX4008_WATCHDOG 553 tristate "LPC32XX Watchdog" 554 depends on ARCH_LPC32XX || COMPILE_TEST 555 select WATCHDOG_CORE 556 help 557 Say Y here if to include support for the watchdog timer 558 in the LPC32XX processor. 559 This driver can be built as a module by choosing M. The module 560 will be called pnx4008_wdt. 561 562 Say N if you are unsure. 563 564config IOP_WATCHDOG 565 tristate "IOP Watchdog" 566 depends on ARCH_IOP13XX 567 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 568 help 569 Say Y here if to include support for the watchdog timer 570 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 571 be built as a module by choosing M. The module will 572 be called iop_wdt. 573 574 Note: The IOP13XX watchdog does an Internal Bus Reset which will 575 affect both cores and the peripherals of the IOP. The ATU-X 576 and/or ATUe configuration registers will remain intact, but if 577 operating as an Root Complex and/or Central Resource, the PCI-X 578 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 579 580config DAVINCI_WATCHDOG 581 tristate "DaVinci watchdog" 582 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 583 select WATCHDOG_CORE 584 help 585 Say Y here if to include support for the watchdog timer 586 in the DaVinci DM644x/DM646x or Keystone processors. 587 To compile this driver as a module, choose M here: the 588 module will be called davinci_wdt. 589 590 NOTE: once enabled, this timer cannot be disabled. 591 Say N if you are unsure. 592 593config K3_RTI_WATCHDOG 594 tristate "Texas Instruments K3 RTI watchdog" 595 depends on ARCH_K3 || COMPILE_TEST 596 select WATCHDOG_CORE 597 help 598 Say Y here if you want to include support for the K3 watchdog 599 timer (RTI module) available in the K3 generation of processors. 600 601config ORION_WATCHDOG 602 tristate "Orion watchdog" 603 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110) 604 depends on ARM 605 select WATCHDOG_CORE 606 help 607 Say Y here if to include support for the watchdog timer 608 in the Marvell Orion5x and Kirkwood ARM SoCs. 609 To compile this driver as a module, choose M here: the 610 module will be called orion_wdt. 611 612config RN5T618_WATCHDOG 613 tristate "Ricoh RN5T618 watchdog" 614 depends on MFD_RN5T618 || COMPILE_TEST 615 select WATCHDOG_CORE 616 help 617 If you say yes here you get support for watchdog on the Ricoh 618 RN5T618 PMIC. 619 620 This driver can also be built as a module. If so, the module 621 will be called rn5t618_wdt. 622 623config SUNXI_WATCHDOG 624 tristate "Allwinner SoCs watchdog support" 625 depends on ARCH_SUNXI || COMPILE_TEST 626 select WATCHDOG_CORE 627 help 628 Say Y here to include support for the watchdog timer 629 in Allwinner SoCs. 630 To compile this driver as a module, choose M here: the 631 module will be called sunxi_wdt. 632 633config COH901327_WATCHDOG 634 bool "ST-Ericsson COH 901 327 watchdog" 635 depends on ARCH_U300 || (ARM && COMMON_CLK && COMPILE_TEST) 636 default y if MACH_U300 637 select WATCHDOG_CORE 638 help 639 Say Y here to include Watchdog timer support for the 640 watchdog embedded into the ST-Ericsson U300 series platforms. 641 This watchdog is used to reset the system and thus cannot be 642 compiled as a module. 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 SIRFSOC_WATCHDOG 792 tristate "SiRFSOC watchdog" 793 depends on HAS_IOMEM 794 depends on ARCH_SIRF || COMPILE_TEST 795 select WATCHDOG_CORE 796 default y 797 help 798 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 799 the watchdog triggers the system will be reset. 800 801config ST_LPC_WATCHDOG 802 tristate "STMicroelectronics LPC Watchdog" 803 depends on ARCH_STI || COMPILE_TEST 804 depends on OF 805 select WATCHDOG_CORE 806 help 807 Say Y here to include STMicroelectronics Low Power Controller 808 (LPC) based Watchdog timer support. 809 810 To compile this driver as a module, choose M here: the 811 module will be called st_lpc_wdt. 812 813config TEGRA_WATCHDOG 814 tristate "Tegra watchdog" 815 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 816 select WATCHDOG_CORE 817 help 818 Say Y here to include support for the watchdog timer 819 embedded in NVIDIA Tegra SoCs. 820 821 To compile this driver as a module, choose M here: the 822 module will be called tegra_wdt. 823 824config QCOM_WDT 825 tristate "QCOM watchdog" 826 depends on HAS_IOMEM 827 depends on ARCH_QCOM || COMPILE_TEST 828 select WATCHDOG_CORE 829 help 830 Say Y here to include Watchdog timer support for the watchdog found 831 on QCOM chipsets. Currently supported targets are the MSM8960, 832 APQ8064, and IPQ8064. 833 834 To compile this driver as a module, choose M here: the 835 module will be called qcom_wdt. 836 837config MESON_GXBB_WATCHDOG 838 tristate "Amlogic Meson GXBB 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 GXBB SoCs. 844 To compile this driver as a module, choose M here: the 845 module will be called meson_gxbb_wdt. 846 847config MESON_WATCHDOG 848 tristate "Amlogic Meson SoCs watchdog support" 849 depends on ARCH_MESON || COMPILE_TEST 850 select WATCHDOG_CORE 851 help 852 Say Y here to include support for the watchdog timer 853 in Amlogic Meson SoCs. 854 To compile this driver as a module, choose M here: the 855 module will be called meson_wdt. 856 857config MEDIATEK_WATCHDOG 858 tristate "Mediatek SoCs watchdog support" 859 depends on ARCH_MEDIATEK || COMPILE_TEST 860 select WATCHDOG_CORE 861 select RESET_CONTROLLER 862 help 863 Say Y here to include support for the watchdog timer 864 in Mediatek SoCs. 865 To compile this driver as a module, choose M here: the 866 module will be called mtk_wdt. 867 868config DIGICOLOR_WATCHDOG 869 tristate "Conexant Digicolor SoCs watchdog support" 870 depends on ARCH_DIGICOLOR || COMPILE_TEST 871 select WATCHDOG_CORE 872 help 873 Say Y here to include support for the watchdog timer 874 in Conexant Digicolor SoCs. 875 To compile this driver as a module, choose M here: the 876 module will be called digicolor_wdt. 877 878config ARM_SMC_WATCHDOG 879 tristate "ARM Secure Monitor Call based watchdog support" 880 depends on ARM || ARM64 881 depends on OF 882 depends on HAVE_ARM_SMCCC 883 select WATCHDOG_CORE 884 help 885 Say Y here to include support for a watchdog timer 886 implemented by the EL3 Secure Monitor on ARM platforms. 887 Requires firmware support. 888 To compile this driver as a module, choose M here: the 889 module will be called arm_smc_wdt. 890 891config LPC18XX_WATCHDOG 892 tristate "LPC18xx/43xx Watchdog" 893 depends on ARCH_LPC18XX || COMPILE_TEST 894 depends on HAS_IOMEM 895 select WATCHDOG_CORE 896 help 897 Say Y here if to include support for the watchdog timer 898 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 899 processors. 900 To compile this driver as a module, choose M here: the 901 module will be called lpc18xx_wdt. 902 903config ATLAS7_WATCHDOG 904 tristate "CSRatlas7 watchdog" 905 depends on ARCH_ATLAS7 || COMPILE_TEST 906 help 907 Say Y here to include Watchdog timer support for the watchdog 908 existing on the CSRatlas7 series platforms. 909 910 To compile this driver as a module, choose M here: the 911 module will be called atlas7_wdt. 912 913config RENESAS_WDT 914 tristate "Renesas WDT Watchdog" 915 depends on ARCH_RENESAS || COMPILE_TEST 916 select WATCHDOG_CORE 917 help 918 This driver adds watchdog support for the integrated watchdogs in the 919 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 920 921config RENESAS_RZAWDT 922 tristate "Renesas RZ/A WDT Watchdog" 923 depends on ARCH_RENESAS || COMPILE_TEST 924 select WATCHDOG_CORE 925 help 926 This driver adds watchdog support for the integrated watchdogs in the 927 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 928 929config ASPEED_WATCHDOG 930 tristate "Aspeed BMC watchdog support" 931 depends on ARCH_ASPEED || COMPILE_TEST 932 select WATCHDOG_CORE 933 help 934 Say Y here to include support for the watchdog timer 935 in Aspeed BMC SoCs. 936 937 This driver is required to reboot the SoC. 938 939 To compile this driver as a module, choose M here: the 940 module will be called aspeed_wdt. 941 942config ZX2967_WATCHDOG 943 tristate "ZTE zx2967 SoCs watchdog support" 944 depends on ARCH_ZX 945 select WATCHDOG_CORE 946 help 947 Say Y here to include support for the watchdog timer 948 in ZTE zx2967 SoCs. 949 To compile this driver as a module, choose M here: the 950 module will be called zx2967_wdt. 951 952config STM32_WATCHDOG 953 tristate "STM32 Independent WatchDoG (IWDG) support" 954 depends on ARCH_STM32 955 select WATCHDOG_CORE 956 default y 957 help 958 Say Y here to include support for the watchdog timer 959 in stm32 SoCs. 960 961 To compile this driver as a module, choose M here: the 962 module will be called stm32_iwdg. 963 964config STPMIC1_WATCHDOG 965 tristate "STPMIC1 PMIC watchdog support" 966 depends on MFD_STPMIC1 967 select WATCHDOG_CORE 968 help 969 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 970 If the watchdog timer expires, stpmic1 will shut down all its power 971 supplies. 972 973 To compile this driver as a module, choose M here: the 974 module will be called spmic1_wdt. 975 976config UNIPHIER_WATCHDOG 977 tristate "UniPhier watchdog support" 978 depends on ARCH_UNIPHIER || COMPILE_TEST 979 depends on OF && MFD_SYSCON 980 select WATCHDOG_CORE 981 help 982 Say Y here to include support watchdog timer embedded 983 into the UniPhier system. 984 985 To compile this driver as a module, choose M here: the 986 module will be called uniphier_wdt. 987 988config RTD119X_WATCHDOG 989 bool "Realtek RTD119x/RTD129x watchdog support" 990 depends on ARCH_REALTEK || COMPILE_TEST 991 depends on OF 992 select WATCHDOG_CORE 993 default ARCH_REALTEK 994 help 995 Say Y here to include support for the watchdog timer in 996 Realtek RTD1295 SoCs. 997 998config SPRD_WATCHDOG 999 tristate "Spreadtrum watchdog support" 1000 depends on ARCH_SPRD || COMPILE_TEST 1001 select WATCHDOG_CORE 1002 help 1003 Say Y here to include watchdog timer supported 1004 by Spreadtrum system. 1005 1006config PM8916_WATCHDOG 1007 tristate "QCOM PM8916 pmic watchdog" 1008 depends on OF && MFD_SPMI_PMIC 1009 select WATCHDOG_CORE 1010 help 1011 Say Y here to include support watchdog timer embedded into the 1012 pm8916 module. 1013 1014config VISCONTI_WATCHDOG 1015 tristate "Toshiba Visconti series watchdog support" 1016 depends on ARCH_VISCONTI || COMPILE_TEST 1017 select WATCHDOG_CORE 1018 help 1019 Say Y here to include support for the watchdog timer in Toshiba 1020 Visconti SoCs. 1021 1022# X86 (i386 + ia64 + x86_64) Architecture 1023 1024config ACQUIRE_WDT 1025 tristate "Acquire SBC Watchdog Timer" 1026 depends on X86 1027 help 1028 This is the driver for the hardware watchdog on Single Board 1029 Computers produced by Acquire Inc (and others). This watchdog 1030 simply watches your kernel to make sure it doesn't freeze, and if 1031 it does, it reboots your computer after a certain amount of time. 1032 1033 To compile this driver as a module, choose M here: the 1034 module will be called acquirewdt. 1035 1036 Most people will say N. 1037 1038config ADVANTECH_WDT 1039 tristate "Advantech SBC Watchdog Timer" 1040 depends on X86 1041 help 1042 If you are configuring a Linux kernel for the Advantech single-board 1043 computer, say `Y' here to support its built-in watchdog timer 1044 feature. More information can be found at 1045 <https://www.advantech.com.tw/products/> 1046 1047config ALIM1535_WDT 1048 tristate "ALi M1535 PMU Watchdog Timer" 1049 depends on X86 && PCI 1050 help 1051 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1052 1053 To compile this driver as a module, choose M here: the 1054 module will be called alim1535_wdt. 1055 1056 Most people will say N. 1057 1058config ALIM7101_WDT 1059 tristate "ALi M7101 PMU Computer Watchdog" 1060 depends on PCI 1061 help 1062 This is the driver for the hardware watchdog on the ALi M7101 PMU 1063 as used in the x86 Cobalt servers and also found in some 1064 SPARC Netra servers too. 1065 1066 To compile this driver as a module, choose M here: the 1067 module will be called alim7101_wdt. 1068 1069 Most people will say N. 1070 1071config EBC_C384_WDT 1072 tristate "WinSystems EBC-C384 Watchdog Timer" 1073 depends on X86 1074 select ISA_BUS_API 1075 select WATCHDOG_CORE 1076 help 1077 Enables watchdog timer support for the watchdog timer on the 1078 WinSystems EBC-C384 motherboard. The timeout may be configured via 1079 the timeout module parameter. 1080 1081config F71808E_WDT 1082 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1083 depends on X86 1084 help 1085 This is the driver for the hardware watchdog on the Fintek F71808E, 1086 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1087 F81866 Super I/O controllers. 1088 1089 You can compile this driver directly into the kernel, or use 1090 it as a module. The module will be called f71808e_wdt. 1091 1092config SP5100_TCO 1093 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1094 depends on X86 && PCI 1095 select WATCHDOG_CORE 1096 help 1097 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1098 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1099 the machine after its expiration. The expiration time can be 1100 configured with the "heartbeat" parameter. 1101 1102 To compile this driver as a module, choose M here: the 1103 module will be called sp5100_tco. 1104 1105config GEODE_WDT 1106 tristate "AMD Geode CS5535/CS5536 Watchdog" 1107 depends on CS5535_MFGPT 1108 help 1109 This driver enables a watchdog capability built into the 1110 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1111 processors. This watchdog watches your kernel to make sure 1112 it doesn't freeze, and if it does, it reboots your computer after 1113 a certain amount of time. 1114 1115 You can compile this driver directly into the kernel, or use 1116 it as a module. The module will be called geodewdt. 1117 1118config SC520_WDT 1119 tristate "AMD Elan SC520 processor Watchdog" 1120 depends on MELAN || COMPILE_TEST 1121 help 1122 This is the driver for the hardware watchdog built in to the 1123 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1124 This watchdog simply watches your kernel to make sure it doesn't 1125 freeze, and if it does, it reboots your computer after a certain 1126 amount of time. 1127 1128 You can compile this driver directly into the kernel, or use 1129 it as a module. The module will be called sc520_wdt. 1130 1131config SBC_FITPC2_WATCHDOG 1132 tristate "Compulab SBC-FITPC2 watchdog" 1133 depends on X86 1134 help 1135 This is the driver for the built-in watchdog timer on the fit-PC2, 1136 fit-PC2i, CM-iAM single-board computers made by Compulab. 1137 1138 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 1139 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 1140 1141 Entering BIOS setup temporary disables watchdog operation regardless to current state, 1142 so system will not be restarted while user in BIOS setup. 1143 1144 Once watchdog was enabled the system will be restarted every 1145 "Watchdog Timer Value" period, so to prevent it user can restart or 1146 disable the watchdog. 1147 1148 To compile this driver as a module, choose M here: the 1149 module will be called sbc_fitpc2_wdt. 1150 1151 Most people will say N. 1152 1153config EUROTECH_WDT 1154 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1155 depends on X86 1156 help 1157 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1158 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1159 information are at <http://www.eurotech.it/>. 1160 1161config IB700_WDT 1162 tristate "IB700 SBC Watchdog Timer" 1163 depends on X86 1164 help 1165 This is the driver for the hardware watchdog on the IB700 Single 1166 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 1167 simply watches your kernel to make sure it doesn't freeze, and if 1168 it does, it reboots your computer after a certain amount of time. 1169 1170 This driver is like the WDT501 driver but for slightly different hardware. 1171 1172 To compile this driver as a module, choose M here: the 1173 module will be called ib700wdt. 1174 1175 Most people will say N. 1176 1177config IBMASR 1178 tristate "IBM Automatic Server Restart" 1179 depends on X86 1180 help 1181 This is the driver for the IBM Automatic Server Restart watchdog 1182 timer built-in into some eServer xSeries machines. 1183 1184 To compile this driver as a module, choose M here: the 1185 module will be called ibmasr. 1186 1187config WAFER_WDT 1188 tristate "ICP Single Board Computer Watchdog Timer" 1189 depends on X86 1190 help 1191 This is a driver for the hardware watchdog on the ICP Single 1192 Board Computer. This driver is working on (at least) the following 1193 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1194 1195 To compile this driver as a module, choose M here: the 1196 module will be called wafer5823wdt. 1197 1198config I6300ESB_WDT 1199 tristate "Intel 6300ESB Timer/Watchdog" 1200 depends on PCI 1201 select WATCHDOG_CORE 1202 help 1203 Hardware driver for the watchdog timer built into the Intel 1204 6300ESB controller hub. 1205 1206 To compile this driver as a module, choose M here: the 1207 module will be called i6300esb. 1208 1209config IE6XX_WDT 1210 tristate "Intel Atom E6xx Watchdog" 1211 depends on X86 && PCI 1212 select WATCHDOG_CORE 1213 select MFD_CORE 1214 select LPC_SCH 1215 help 1216 Hardware driver for the watchdog timer built into the Intel 1217 Atom E6XX (TunnelCreek) processor. 1218 1219 To compile this driver as a module, choose M here: the 1220 module will be called ie6xx_wdt. 1221 1222config INTEL_SCU_WATCHDOG 1223 bool "Intel SCU Watchdog for Mobile Platforms" 1224 depends on X86_INTEL_MID 1225 help 1226 Hardware driver for the watchdog time built into the Intel SCU 1227 for Intel Mobile Platforms. 1228 1229 To compile this driver as a module, choose M here. 1230 1231config INTEL_MID_WATCHDOG 1232 tristate "Intel MID Watchdog Timer" 1233 depends on X86_INTEL_MID 1234 select WATCHDOG_CORE 1235 help 1236 Watchdog timer driver built into the Intel SCU for Intel MID 1237 Platforms. 1238 1239 This driver currently supports only the watchdog evolution 1240 implementation in SCU, available for Merrifield generation. 1241 1242 To compile this driver as a module, choose M here. 1243 1244config ITCO_WDT 1245 tristate "Intel TCO Timer/Watchdog" 1246 depends on (X86 || IA64) && PCI 1247 select WATCHDOG_CORE 1248 depends on I2C || I2C=n 1249 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1250 select LPC_ICH if !EXPERT 1251 select I2C_I801 if !EXPERT && I2C 1252 help 1253 Hardware driver for the intel TCO timer based watchdog devices. 1254 These drivers are included in the Intel 82801 I/O Controller 1255 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1256 controller hub. 1257 1258 The TCO (Total Cost of Ownership) timer is a watchdog timer 1259 that will reboot the machine after its second expiration. The 1260 expiration time can be configured with the "heartbeat" parameter. 1261 1262 On some motherboards the driver may fail to reset the chipset's 1263 NO_REBOOT flag which prevents the watchdog from rebooting the 1264 machine. If this is the case you will get a kernel message like 1265 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1266 1267 To compile this driver as a module, choose M here: the 1268 module will be called iTCO_wdt. 1269 1270config ITCO_VENDOR_SUPPORT 1271 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1272 depends on ITCO_WDT 1273 help 1274 Add vendor specific support to the intel TCO timer based watchdog 1275 devices. At this moment we only have additional support for some 1276 SuperMicro Inc. motherboards. 1277 1278config IT8712F_WDT 1279 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1280 depends on X86 1281 help 1282 This is the driver for the built-in watchdog timer on the IT8712F 1283 Super I/0 chipset used on many motherboards. 1284 1285 If the driver does not work, then make sure that the game port in 1286 the BIOS is enabled. 1287 1288 To compile this driver as a module, choose M here: the 1289 module will be called it8712f_wdt. 1290 1291config IT87_WDT 1292 tristate "IT87 Watchdog Timer" 1293 depends on X86 1294 select WATCHDOG_CORE 1295 help 1296 This is the driver for the hardware watchdog on the ITE IT8607, 1297 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1298 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1299 IT8783 Super I/O chips. 1300 1301 This watchdog simply watches your kernel to make sure it doesn't 1302 freeze, and if it does, it reboots your computer after a certain 1303 amount of time. 1304 1305 To compile this driver as a module, choose M here: the module will 1306 be called it87_wdt. 1307 1308config HP_WATCHDOG 1309 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1310 select WATCHDOG_CORE 1311 depends on X86 && PCI 1312 help 1313 A software monitoring watchdog and NMI handling driver. This driver 1314 will detect lockups and provide a stack trace. This is a driver that 1315 will only load on an HP ProLiant system with a minimum of iLO2 support. 1316 To compile this driver as a module, choose M here: the module will be 1317 called hpwdt. 1318 1319config HPWDT_NMI_DECODING 1320 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1321 depends on HP_WATCHDOG 1322 default y 1323 help 1324 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1325 "Generate NMI to System" virtual button. When an NMI is claimed 1326 by the driver, panic is called. 1327 1328config KEMPLD_WDT 1329 tristate "Kontron COM Watchdog Timer" 1330 depends on MFD_KEMPLD 1331 select WATCHDOG_CORE 1332 help 1333 Support for the PLD watchdog on some Kontron ETX and COMexpress 1334 (ETXexpress) modules 1335 1336 This driver can also be built as a module. If so, the module will be 1337 called kempld_wdt. 1338 1339config SC1200_WDT 1340 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1341 depends on X86 1342 help 1343 This is a driver for National Semiconductor PC87307/PC97307 hardware 1344 watchdog cards as found on the SC1200. This watchdog is mainly used 1345 for power management purposes and can be used to power down the device 1346 during inactivity periods (includes interrupt activity monitoring). 1347 1348 To compile this driver as a module, choose M here: the 1349 module will be called sc1200wdt. 1350 1351 Most people will say N. 1352 1353config SCx200_WDT 1354 tristate "National Semiconductor SCx200 Watchdog" 1355 depends on SCx200 && PCI 1356 help 1357 Enable the built-in watchdog timer support on the National 1358 Semiconductor SCx200 processors. 1359 1360 If compiled as a module, it will be called scx200_wdt. 1361 1362config PC87413_WDT 1363 tristate "NS PC87413 watchdog" 1364 depends on X86 1365 help 1366 This is the driver for the hardware watchdog on the PC87413 chipset 1367 This watchdog simply watches your kernel to make sure it doesn't 1368 freeze, and if it does, it reboots your computer after a certain 1369 amount of time. 1370 1371 To compile this driver as a module, choose M here: the 1372 module will be called pc87413_wdt. 1373 1374 Most people will say N. 1375 1376config NV_TCO 1377 tristate "nVidia TCO Timer/Watchdog" 1378 depends on X86 && PCI 1379 help 1380 Hardware driver for the TCO timer built into the nVidia Hub family 1381 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1382 watchdog timer that will reboot the machine after its second 1383 expiration. The expiration time can be configured with the 1384 "heartbeat" parameter. 1385 1386 On some motherboards the driver may fail to reset the chipset's 1387 NO_REBOOT flag which prevents the watchdog from rebooting the 1388 machine. If this is the case you will get a kernel message like 1389 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1390 1391 To compile this driver as a module, choose M here: the 1392 module will be called nv_tco. 1393 1394config RDC321X_WDT 1395 tristate "RDC R-321x SoC watchdog" 1396 depends on X86_RDC321X || COMPILE_TEST 1397 depends on PCI 1398 help 1399 This is the driver for the built in hardware watchdog 1400 in the RDC R-321x SoC. 1401 1402 To compile this driver as a module, choose M here: the 1403 module will be called rdc321x_wdt. 1404 1405config 60XX_WDT 1406 tristate "SBC-60XX Watchdog Timer" 1407 depends on X86 1408 help 1409 This driver can be used with the watchdog timer found on some 1410 single board computers, namely the 6010 PII based computer. 1411 It may well work with other cards. It reads port 0x443 to enable 1412 and re-set the watchdog timer, and reads port 0x45 to disable 1413 the watchdog. If you have a card that behave in similar ways, 1414 you can probably make this driver work with your card as well. 1415 1416 You can compile this driver directly into the kernel, or use 1417 it as a module. The module will be called sbc60xxwdt. 1418 1419config SBC8360_WDT 1420 tristate "SBC8360 Watchdog Timer" 1421 depends on X86_32 1422 help 1423 1424 This is the driver for the hardware watchdog on the SBC8360 Single 1425 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1426 1427 To compile this driver as a module, choose M here: the 1428 module will be called sbc8360. 1429 1430 Most people will say N. 1431 1432config SBC7240_WDT 1433 tristate "SBC Nano 7240 Watchdog Timer" 1434 depends on X86_32 && !UML 1435 help 1436 This is the driver for the hardware watchdog found on the IEI 1437 single board computers EPIC Nano 7240 (and likely others). This 1438 watchdog simply watches your kernel to make sure it doesn't freeze, 1439 and if it does, it reboots your computer after a certain amount of 1440 time. 1441 1442 To compile this driver as a module, choose M here: the 1443 module will be called sbc7240_wdt. 1444 1445config CPU5_WDT 1446 tristate "SMA CPU5 Watchdog" 1447 depends on X86 1448 help 1449 TBD. 1450 To compile this driver as a module, choose M here: the 1451 module will be called cpu5wdt. 1452 1453config SMSC_SCH311X_WDT 1454 tristate "SMSC SCH311X Watchdog Timer" 1455 depends on X86 1456 help 1457 This is the driver for the hardware watchdog timer on the 1458 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1459 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1460 serial ports). 1461 1462 To compile this driver as a module, choose M here: the 1463 module will be called sch311x_wdt. 1464 1465config SMSC37B787_WDT 1466 tristate "Winbond SMsC37B787 Watchdog Timer" 1467 depends on X86 1468 help 1469 This is the driver for the hardware watchdog component on the 1470 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1471 from Vision Systems and maybe others. 1472 1473 This watchdog simply watches your kernel to make sure it doesn't 1474 freeze, and if it does, it reboots your computer after a certain 1475 amount of time. 1476 1477 Usually a userspace daemon will notify the kernel WDT driver that 1478 userspace is still alive, at regular intervals. 1479 1480 To compile this driver as a module, choose M here: the 1481 module will be called smsc37b787_wdt. 1482 1483 Most people will say N. 1484 1485config TQMX86_WDT 1486 tristate "TQ-Systems TQMX86 Watchdog Timer" 1487 depends on X86 1488 select WATCHDOG_CORE 1489 help 1490 This is the driver for the hardware watchdog timer in the TQMX86 IO 1491 controller found on some of their ComExpress Modules. 1492 1493 To compile this driver as a module, choose M here; the module 1494 will be called tqmx86_wdt. 1495 1496 Most people will say N. 1497 1498config VIA_WDT 1499 tristate "VIA Watchdog Timer" 1500 depends on X86 && PCI 1501 select WATCHDOG_CORE 1502 help 1503 This is the driver for the hardware watchdog timer on VIA 1504 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1505 1506 To compile this driver as a module, choose M here; the module 1507 will be called via_wdt. 1508 1509 Most people will say N. 1510 1511config W83627HF_WDT 1512 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1513 depends on X86 1514 select WATCHDOG_CORE 1515 help 1516 This is the driver for the hardware watchdog on the following 1517 Super I/O chips. 1518 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1519 W83637HF 1520 W83667HG/HG-B 1521 W83687THF 1522 W83697HF 1523 W83697UG 1524 NCT6775 1525 NCT6776 1526 NCT6779 1527 NCT6791 1528 NCT6792 1529 NCT6102D/04D/06D 1530 NCT6116D 1531 1532 This watchdog simply watches your kernel to make sure it doesn't 1533 freeze, and if it does, it reboots your computer after a certain 1534 amount of time. 1535 1536 To compile this driver as a module, choose M here: the 1537 module will be called w83627hf_wdt. 1538 1539 Most people will say N. 1540 1541config W83877F_WDT 1542 tristate "W83877F (EMACS) Watchdog Timer" 1543 depends on X86 1544 help 1545 This is the driver for the hardware watchdog on the W83877F chipset 1546 as used in EMACS PC-104 motherboards (and likely others). This 1547 watchdog simply watches your kernel to make sure it doesn't freeze, 1548 and if it does, it reboots your computer after a certain amount of 1549 time. 1550 1551 To compile this driver as a module, choose M here: the 1552 module will be called w83877f_wdt. 1553 1554 Most people will say N. 1555 1556config W83977F_WDT 1557 tristate "W83977F (PCM-5335) Watchdog Timer" 1558 depends on X86 1559 help 1560 This is the driver for the hardware watchdog on the W83977F I/O chip 1561 as used in AAEON's PCM-5335 SBC (and likely others). This 1562 watchdog simply watches your kernel to make sure it doesn't freeze, 1563 and if it does, it reboots your computer after a certain amount of 1564 time. 1565 1566 To compile this driver as a module, choose M here: the 1567 module will be called w83977f_wdt. 1568 1569config MACHZ_WDT 1570 tristate "ZF MachZ Watchdog" 1571 depends on X86 1572 help 1573 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1574 N. This is the driver for the watchdog timer built-in on that 1575 processor using ZF-Logic interface. This watchdog simply watches 1576 your kernel to make sure it doesn't freeze, and if it does, it 1577 reboots your computer after a certain amount of time. 1578 1579 To compile this driver as a module, choose M here: the 1580 module will be called machzwd. 1581 1582config SBC_EPX_C3_WATCHDOG 1583 tristate "Winsystems SBC EPX-C3 watchdog" 1584 depends on X86 1585 help 1586 This is the driver for the built-in watchdog timer on the EPX-C3 1587 Single-board computer made by Winsystems, Inc. 1588 1589 *Note*: This hardware watchdog is not probeable and thus there 1590 is no way to know if writing to its IO address will corrupt 1591 your system or have any real effect. The only way to be sure 1592 that this driver does what you want is to make sure you 1593 are running it on an EPX-C3 from Winsystems with the watchdog 1594 timer at IO address 0x1ee and 0x1ef. It will write to both those 1595 IO ports. Basically, the assumption is made that if you compile 1596 this driver into your kernel and/or load it as a module, that you 1597 know what you are doing and that you are in fact running on an 1598 EPX-C3 board! 1599 1600 To compile this driver as a module, choose M here: the 1601 module will be called sbc_epx_c3. 1602 1603config INTEL_MEI_WDT 1604 tristate "Intel MEI iAMT Watchdog" 1605 depends on INTEL_MEI && X86 1606 select WATCHDOG_CORE 1607 help 1608 A device driver for the Intel MEI iAMT watchdog. 1609 1610 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1611 Whenever the OS hangs or crashes, iAMT will send an event 1612 to any subscriber to this event. The watchdog doesn't reset the 1613 the platform. 1614 1615 To compile this driver as a module, choose M here: 1616 the module will be called mei_wdt. 1617 1618config NI903X_WDT 1619 tristate "NI 903x/913x Watchdog" 1620 depends on X86 && ACPI 1621 select WATCHDOG_CORE 1622 help 1623 This is the driver for the watchdog timer on the National Instruments 1624 903x/913x real-time controllers. 1625 1626 To compile this driver as a module, choose M here: the module will be 1627 called ni903x_wdt. 1628 1629config NIC7018_WDT 1630 tristate "NIC7018 Watchdog" 1631 depends on X86 && ACPI 1632 select WATCHDOG_CORE 1633 help 1634 Support for National Instruments NIC7018 Watchdog. 1635 1636 To compile this driver as a module, choose M here: the module will be 1637 called nic7018_wdt. 1638 1639# M68K Architecture 1640 1641config M54xx_WATCHDOG 1642 tristate "MCF54xx watchdog support" 1643 depends on M548x 1644 help 1645 To compile this driver as a module, choose M here: the 1646 module will be called m54xx_wdt. 1647 1648# MicroBlaze Architecture 1649 1650# MIPS Architecture 1651 1652config ATH79_WDT 1653 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1654 depends on ATH79 || (ARM && COMPILE_TEST) 1655 help 1656 Hardware driver for the built-in watchdog timer on the Atheros 1657 AR71XX/AR724X/AR913X SoCs. 1658 1659config BCM47XX_WDT 1660 tristate "Broadcom BCM47xx Watchdog Timer" 1661 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1662 select WATCHDOG_CORE 1663 help 1664 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1665 1666config RC32434_WDT 1667 tristate "IDT RC32434 SoC Watchdog Timer" 1668 depends on MIKROTIK_RB532 1669 help 1670 Hardware driver for the IDT RC32434 SoC built-in 1671 watchdog timer. 1672 1673 To compile this driver as a module, choose M here: the 1674 module will be called rc32434_wdt. 1675 1676config INDYDOG 1677 tristate "Indy/I2 Hardware Watchdog" 1678 depends on SGI_HAS_INDYDOG 1679 help 1680 Hardware driver for the Indy's/I2's watchdog. This is a 1681 watchdog timer that will reboot the machine after a 60 second 1682 timer expired and no process has written to /dev/watchdog during 1683 that time. 1684 1685config JZ4740_WDT 1686 tristate "Ingenic jz4740 SoC hardware watchdog" 1687 depends on MIPS 1688 depends on COMMON_CLK 1689 select WATCHDOG_CORE 1690 select MFD_SYSCON 1691 help 1692 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1693 1694config WDT_MTX1 1695 tristate "MTX-1 Hardware Watchdog" 1696 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1697 help 1698 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1699 will reboot the machine after a 100 seconds timer expired. 1700 1701config PNX833X_WDT 1702 tristate "PNX833x Hardware Watchdog" 1703 depends on SOC_PNX8335 1704 depends on BROKEN 1705 help 1706 Hardware driver for the PNX833x's watchdog. This is a 1707 watchdog timer that will reboot the machine after a programmable 1708 timer has expired and no process has written to /dev/watchdog during 1709 that time. 1710 1711config SIBYTE_WDOG 1712 tristate "Sibyte SoC hardware watchdog" 1713 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1714 help 1715 Watchdog driver for the built in watchdog hardware in Sibyte 1716 SoC processors. There are apparently two watchdog timers 1717 on such processors; this driver supports only the first one, 1718 because currently Linux only supports exporting one watchdog 1719 to userspace. 1720 1721 To compile this driver as a loadable module, choose M here. 1722 The module will be called sb_wdog. 1723 1724config AR7_WDT 1725 tristate "TI AR7 Watchdog Timer" 1726 depends on AR7 || (MIPS && 32BIT && COMPILE_TEST) 1727 help 1728 Hardware driver for the TI AR7 Watchdog Timer. 1729 1730config TXX9_WDT 1731 tristate "Toshiba TXx9 Watchdog Timer" 1732 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1733 select WATCHDOG_CORE 1734 help 1735 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1736 1737config OCTEON_WDT 1738 tristate "Cavium OCTEON SOC family Watchdog Timer" 1739 depends on CAVIUM_OCTEON_SOC 1740 default y 1741 select WATCHDOG_CORE 1742 select EXPORT_UASM if OCTEON_WDT = m 1743 help 1744 Hardware driver for OCTEON's on chip watchdog timer. 1745 Enables the watchdog for all cores running Linux. It 1746 installs a NMI handler and pokes the watchdog based on an 1747 interrupt. On first expiration of the watchdog, the 1748 interrupt handler pokes it. The second expiration causes an 1749 NMI that prints a message. The third expiration causes a 1750 global soft reset. 1751 1752 When userspace has /dev/watchdog open, no poking is done 1753 from the first interrupt, it is then only poked when the 1754 device is written. 1755 1756config BCM63XX_WDT 1757 tristate "Broadcom BCM63xx hardware watchdog" 1758 depends on BCM63XX 1759 help 1760 Watchdog driver for the built in watchdog hardware in Broadcom 1761 BCM63xx SoC. 1762 1763 To compile this driver as a loadable module, choose M here. 1764 The module will be called bcm63xx_wdt. 1765 1766config BCM2835_WDT 1767 tristate "Broadcom BCM2835 hardware watchdog" 1768 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1769 select WATCHDOG_CORE 1770 help 1771 Watchdog driver for the built in watchdog hardware in Broadcom 1772 BCM2835 SoC. 1773 1774 To compile this driver as a loadable module, choose M here. 1775 The module will be called bcm2835_wdt. 1776 1777config BCM_KONA_WDT 1778 tristate "BCM Kona Watchdog" 1779 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1780 select WATCHDOG_CORE 1781 help 1782 Support for the watchdog timer on the following Broadcom BCM281xx 1783 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1784 BCM28155 variants. 1785 1786 Say 'Y' or 'M' here to enable the driver. The module will be called 1787 bcm_kona_wdt. 1788 1789config BCM_KONA_WDT_DEBUG 1790 bool "DEBUGFS support for BCM Kona Watchdog" 1791 depends on BCM_KONA_WDT 1792 help 1793 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1794 access to the driver's internal data structures as well as watchdog 1795 timer hardware registres. 1796 1797 If in doubt, say 'N'. 1798 1799config BCM7038_WDT 1800 tristate "BCM7038 Watchdog" 1801 select WATCHDOG_CORE 1802 depends on HAS_IOMEM 1803 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1804 help 1805 Watchdog driver for the built-in hardware in Broadcom 7038 and 1806 later SoCs used in set-top boxes. BCM7038 was made public 1807 during the 2004 CES, and since then, many Broadcom chips use this 1808 watchdog block, including some cable modem chips. 1809 1810config IMGPDC_WDT 1811 tristate "Imagination Technologies PDC Watchdog Timer" 1812 depends on HAS_IOMEM 1813 depends on MIPS || COMPILE_TEST 1814 select WATCHDOG_CORE 1815 help 1816 Driver for Imagination Technologies PowerDown Controller 1817 Watchdog Timer. 1818 1819 To compile this driver as a loadable module, choose M here. 1820 The module will be called imgpdc_wdt. 1821 1822config LANTIQ_WDT 1823 tristate "Lantiq SoC watchdog" 1824 depends on LANTIQ 1825 select WATCHDOG_CORE 1826 help 1827 Hardware driver for the Lantiq SoC Watchdog Timer. 1828 1829config LOONGSON1_WDT 1830 tristate "Loongson1 SoC hardware watchdog" 1831 depends on MACH_LOONGSON32 1832 select WATCHDOG_CORE 1833 help 1834 Hardware driver for the Loongson1 SoC Watchdog Timer. 1835 1836config RALINK_WDT 1837 tristate "Ralink SoC watchdog" 1838 select WATCHDOG_CORE 1839 depends on RALINK 1840 help 1841 Hardware driver for the Ralink SoC Watchdog Timer. 1842 1843config MT7621_WDT 1844 tristate "Mediatek SoC watchdog" 1845 select WATCHDOG_CORE 1846 depends on SOC_MT7620 || SOC_MT7621 1847 help 1848 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1849 1850config PIC32_WDT 1851 tristate "Microchip PIC32 hardware watchdog" 1852 select WATCHDOG_CORE 1853 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1854 help 1855 Watchdog driver for the built in watchdog hardware in a PIC32. 1856 1857 Configuration bits must be set appropriately for the watchdog to be 1858 controlled by this driver. 1859 1860 To compile this driver as a loadable module, choose M here. 1861 The module will be called pic32-wdt. 1862 1863config PIC32_DMT 1864 tristate "Microchip PIC32 Deadman Timer" 1865 select WATCHDOG_CORE 1866 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1867 help 1868 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1869 timer is typically be used in misson critical and safety critical 1870 applications, where any single failure of the software functionality 1871 and sequencing must be detected. 1872 1873 To compile this driver as a loadable module, choose M here. 1874 The module will be called pic32-dmt. 1875 1876# PARISC Architecture 1877 1878# POWERPC Architecture 1879 1880config GEF_WDT 1881 tristate "GE Watchdog Timer" 1882 depends on GE_FPGA 1883 help 1884 Watchdog timer found in a number of GE single board computers. 1885 1886config MPC5200_WDT 1887 bool "MPC52xx Watchdog Timer" 1888 depends on PPC_MPC52xx || COMPILE_TEST 1889 help 1890 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1891 1892config 8xxx_WDT 1893 tristate "MPC8xxx Platform Watchdog Timer" 1894 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1895 select WATCHDOG_CORE 1896 help 1897 This driver is for a SoC level watchdog that exists on some 1898 Freescale PowerPC processors. So far this driver supports: 1899 - MPC8xx watchdogs 1900 - MPC83xx watchdogs 1901 - MPC86xx watchdogs 1902 1903 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1904 1905config MV64X60_WDT 1906 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1907 depends on MV64X60 || COMPILE_TEST 1908 1909config PIKA_WDT 1910 tristate "PIKA FPGA Watchdog" 1911 depends on WARP || (PPC64 && COMPILE_TEST) 1912 default y 1913 help 1914 This enables the watchdog in the PIKA FPGA. Currently used on 1915 the Warp platform. 1916 1917config BOOKE_WDT 1918 tristate "PowerPC Book-E Watchdog Timer" 1919 depends on BOOKE || 4xx 1920 select WATCHDOG_CORE 1921 help 1922 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1923 MPC85xx SOCs and the IBM PowerPC 440. 1924 1925 Please see Documentation/watchdog/watchdog-api.rst for 1926 more information. 1927 1928config BOOKE_WDT_DEFAULT_TIMEOUT 1929 int "PowerPC Book-E Watchdog Timer Default Timeout" 1930 depends on BOOKE_WDT 1931 default 38 if PPC_FSL_BOOK3E 1932 range 0 63 if PPC_FSL_BOOK3E 1933 default 3 if !PPC_FSL_BOOK3E 1934 range 0 3 if !PPC_FSL_BOOK3E 1935 help 1936 Select the default watchdog timer period to be used by the PowerPC 1937 Book-E watchdog driver. A watchdog "event" occurs when the bit 1938 position represented by this number transitions from zero to one. 1939 1940 For Freescale Book-E processors, this is a number between 0 and 63. 1941 For other Book-E processors, this is a number between 0 and 3. 1942 1943 The value can be overridden by the wdt_period command-line parameter. 1944 1945config MEN_A21_WDT 1946 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1947 select WATCHDOG_CORE 1948 depends on GPIOLIB || COMPILE_TEST 1949 help 1950 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1951 1952 The driver can also be built as a module. If so, the module will be 1953 called mena21_wdt. 1954 1955 If unsure select N here. 1956 1957# PPC64 Architecture 1958 1959config WATCHDOG_RTAS 1960 tristate "RTAS watchdog" 1961 depends on PPC_RTAS 1962 help 1963 This driver adds watchdog support for the RTAS watchdog. 1964 1965 To compile this driver as a module, choose M here. The module 1966 will be called wdrtas. 1967 1968# S390 Architecture 1969 1970config DIAG288_WATCHDOG 1971 tristate "System z diag288 Watchdog" 1972 depends on S390 1973 select WATCHDOG_CORE 1974 help 1975 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1976 provide a virtual watchdog timer to their guest that cause a 1977 user define Control Program command to be executed after a 1978 timeout. 1979 LPAR provides a very similar interface. This driver handles 1980 both. 1981 1982 To compile this driver as a module, choose M here. The module 1983 will be called diag288_wdt. 1984 1985# SUPERH (sh + sh64) Architecture 1986 1987config SH_WDT 1988 tristate "SuperH Watchdog" 1989 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1990 select WATCHDOG_CORE 1991 help 1992 This driver adds watchdog support for the integrated watchdog in the 1993 SuperH processors. If you have one of these processors and wish 1994 to have watchdog support enabled, say Y, otherwise say N. 1995 1996 As a side note, saying Y here will automatically boost HZ to 1000 1997 so that the timer has a chance to clear the overflow counter. On 1998 slower systems (such as the SH-2 and SH-3) this will likely yield 1999 some performance issues. As such, the WDT should be avoided here 2000 unless it is absolutely necessary. 2001 2002 To compile this driver as a module, choose M here: the 2003 module will be called shwdt. 2004 2005# SPARC Architecture 2006 2007# SPARC64 Architecture 2008 2009config WATCHDOG_CP1XXX 2010 tristate "CP1XXX Hardware Watchdog support" 2011 depends on SPARC64 && PCI 2012 help 2013 This is the driver for the hardware watchdog timers present on 2014 Sun Microsystems CompactPCI models CP1400 and CP1500. 2015 2016 To compile this driver as a module, choose M here: the 2017 module will be called cpwatchdog. 2018 2019 If you do not have a CompactPCI model CP1400 or CP1500, or 2020 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2021 you should say N to this option. 2022 2023config WATCHDOG_RIO 2024 tristate "RIO Hardware Watchdog support" 2025 depends on SPARC64 && PCI 2026 help 2027 Say Y here to support the hardware watchdog capability on Sun RIO 2028 machines. The watchdog timeout period is normally one minute but 2029 can be changed with a boot-time parameter. 2030 2031config WATCHDOG_SUN4V 2032 tristate "Sun4v Watchdog support" 2033 select WATCHDOG_CORE 2034 depends on SPARC64 2035 help 2036 Say Y here to support the hypervisor watchdog capability embedded 2037 in the SPARC sun4v architecture. 2038 2039 To compile this driver as a module, choose M here. The module will 2040 be called sun4v_wdt. 2041 2042# XTENSA Architecture 2043 2044# Xen Architecture 2045 2046config XEN_WDT 2047 tristate "Xen Watchdog support" 2048 depends on XEN 2049 select WATCHDOG_CORE 2050 help 2051 Say Y here to support the hypervisor watchdog capability provided 2052 by Xen 4.0 and newer. The watchdog timeout period is normally one 2053 minute but can be changed with a boot-time parameter. 2054 2055config UML_WATCHDOG 2056 tristate "UML watchdog" 2057 depends on UML || COMPILE_TEST 2058 2059# 2060# ISA-based Watchdog Cards 2061# 2062 2063comment "ISA-based Watchdog Cards" 2064 depends on ISA 2065 2066config PCWATCHDOG 2067 tristate "Berkshire Products ISA-PC Watchdog" 2068 depends on ISA 2069 help 2070 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2071 This card simply watches your kernel to make sure it doesn't freeze, 2072 and if it does, it reboots your computer after a certain amount of 2073 time. This driver is like the WDT501 driver but for different 2074 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC 2075 watchdog cards can be ordered from <http://www.berkprod.com/>. 2076 2077 To compile this driver as a module, choose M here: the 2078 module will be called pcwd. 2079 2080 Most people will say N. 2081 2082config MIXCOMWD 2083 tristate "Mixcom Watchdog" 2084 depends on ISA 2085 help 2086 This is a driver for the Mixcom hardware watchdog cards. This 2087 watchdog simply watches your kernel to make sure it doesn't freeze, 2088 and if it does, it reboots your computer after a certain amount of 2089 time. 2090 2091 To compile this driver as a module, choose M here: the 2092 module will be called mixcomwd. 2093 2094 Most people will say N. 2095 2096config WDT 2097 tristate "WDT Watchdog timer" 2098 depends on ISA 2099 help 2100 If you have a WDT500P or WDT501P watchdog board, say Y here, 2101 otherwise N. It is not possible to probe for this board, which means 2102 that you have to inform the kernel about the IO port and IRQ that 2103 is needed (you can do this via the io and irq parameters) 2104 2105 To compile this driver as a module, choose M here: the 2106 module will be called wdt. 2107 2108# 2109# PCI-based Watchdog Cards 2110# 2111 2112comment "PCI-based Watchdog Cards" 2113 depends on PCI 2114 2115config PCIPCWATCHDOG 2116 tristate "Berkshire Products PCI-PC Watchdog" 2117 depends on PCI 2118 help 2119 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2120 This card simply watches your kernel to make sure it doesn't freeze, 2121 and if it does, it reboots your computer after a certain amount of 2122 time. The card can also monitor the internal temperature of the PC. 2123 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2124 2125 To compile this driver as a module, choose M here: the 2126 module will be called pcwd_pci. 2127 2128 Most people will say N. 2129 2130config WDTPCI 2131 tristate "PCI-WDT500/501 Watchdog timer" 2132 depends on PCI 2133 help 2134 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2135 2136 If you have a PCI-WDT501 watchdog board then you can enable the 2137 temperature sensor by setting the type parameter to 501. 2138 2139 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2140 can do this via the tachometer parameter. Only do this if you have a 2141 fan tachometer actually set up. 2142 2143 To compile this driver as a module, choose M here: the 2144 module will be called wdt_pci. 2145 2146# 2147# USB-based Watchdog Cards 2148# 2149 2150comment "USB-based Watchdog Cards" 2151 depends on USB 2152 2153config USBPCWATCHDOG 2154 tristate "Berkshire Products USB-PC Watchdog" 2155 depends on USB 2156 help 2157 This is the driver for the Berkshire Products USB-PC Watchdog card. 2158 This card simply watches your kernel to make sure it doesn't freeze, 2159 and if it does, it reboots your computer after a certain amount of 2160 time. The card can also monitor the internal temperature of the PC. 2161 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2162 2163 To compile this driver as a module, choose M here: the 2164 module will be called pcwd_usb. 2165 2166 Most people will say N. 2167 2168endif # WATCHDOG 2169