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. 342 343# ALPHA Architecture 344 345# ARM Architecture 346 347config ARM_SP805_WATCHDOG 348 tristate "ARM SP805 Watchdog" 349 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 350 select WATCHDOG_CORE 351 help 352 ARM Primecell SP805 Watchdog timer. This will reboot your system when 353 the timeout is reached. 354 355config ARM_SBSA_WATCHDOG 356 tristate "ARM SBSA Generic Watchdog" 357 depends on ARM64 358 depends on ARM_ARCH_TIMER 359 select WATCHDOG_CORE 360 help 361 ARM SBSA Generic Watchdog has two stage timeouts: 362 the first signal (WS0) is for alerting the system by interrupt, 363 the second one (WS1) is a real hardware reset. 364 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 365 366 This driver can operate ARM SBSA Generic Watchdog as a single stage 367 or a two stages watchdog, it depends on the module parameter "action". 368 369 Note: the maximum timeout in the two stages mode is half of that in 370 the single stage mode. 371 372 To compile this driver as module, choose M here: The module 373 will be called sbsa_gwdt. 374 375config ARMADA_37XX_WATCHDOG 376 tristate "Armada 37xx watchdog" 377 depends on ARCH_MVEBU || COMPILE_TEST 378 select MFD_SYSCON 379 select WATCHDOG_CORE 380 help 381 Say Y here to include support for the watchdog timer found on 382 Marvell Armada 37xx SoCs. 383 To compile this driver as a module, choose M here: the 384 module will be called armada_37xx_wdt. 385 386config ASM9260_WATCHDOG 387 tristate "Alphascale ASM9260 watchdog" 388 depends on MACH_ASM9260 || COMPILE_TEST 389 depends on OF 390 select WATCHDOG_CORE 391 select RESET_CONTROLLER 392 help 393 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 394 system when the timeout is reached. 395 396config AT91RM9200_WATCHDOG 397 tristate "AT91RM9200 watchdog" 398 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 399 help 400 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 401 system when the timeout is reached. 402 403config AT91SAM9X_WATCHDOG 404 tristate "AT91SAM9X / AT91CAP9 watchdog" 405 depends on ARCH_AT91 || COMPILE_TEST 406 select WATCHDOG_CORE 407 help 408 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 409 reboot your system when the timeout is reached. 410 411config SAMA5D4_WATCHDOG 412 tristate "Atmel SAMA5D4 Watchdog Timer" 413 depends on ARCH_AT91 || COMPILE_TEST 414 select WATCHDOG_CORE 415 help 416 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 417 Its Watchdog Timer Mode Register can be written more than once. 418 This will reboot your system when the timeout is reached. 419 420config CADENCE_WATCHDOG 421 tristate "Cadence Watchdog Timer" 422 depends on HAS_IOMEM 423 select WATCHDOG_CORE 424 help 425 Say Y here if you want to include support for the watchdog 426 timer in the Xilinx Zynq. 427 428config 21285_WATCHDOG 429 tristate "DC21285 watchdog" 430 depends on FOOTBRIDGE 431 help 432 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 433 here if you wish to use this. Alternatively say M to compile the 434 driver as a module, which will be called wdt285. 435 436 This driver does not work on all machines. In particular, early CATS 437 boards have hardware problems that will cause the machine to simply 438 lock up if the watchdog fires. 439 440 "If in doubt, leave it out" - say N. 441 442config 977_WATCHDOG 443 tristate "NetWinder WB83C977 watchdog" 444 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 445 help 446 Say Y here to include support for the WB977 watchdog included in 447 NetWinder machines. Alternatively say M to compile the driver as 448 a module, which will be called wdt977. 449 450 Not sure? It's safe to say N. 451 452config FTWDT010_WATCHDOG 453 tristate "Faraday Technology FTWDT010 watchdog" 454 depends on ARM || COMPILE_TEST 455 select WATCHDOG_CORE 456 default ARCH_GEMINI 457 help 458 Say Y here if to include support for the Faraday Technology 459 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 460 family of devices. 461 462 To compile this driver as a module, choose M here: the 463 module will be called ftwdt010_wdt. 464 465config IXP4XX_WATCHDOG 466 tristate "IXP4xx Watchdog" 467 depends on ARCH_IXP4XX 468 help 469 Say Y here if to include support for the watchdog timer 470 in the Intel IXP4xx network processors. This driver can 471 be built as a module by choosing M. The module will 472 be called ixp4xx_wdt. 473 474 Note: The internal IXP4xx watchdog does a soft CPU reset 475 which doesn't reset any peripherals. There are circumstances 476 where the watchdog will fail to reset the board correctly 477 (e.g., if the boot ROM is in an unreadable state). 478 479 Say N if you are unsure. 480 481config HAVE_S3C2410_WATCHDOG 482 bool 483 help 484 This will include watchdog timer support for Samsung SoCs. If 485 you want to include watchdog support for any machine, kindly 486 select this in the respective mach-XXXX/Kconfig file. 487 488config S3C2410_WATCHDOG 489 tristate "S3C2410 Watchdog" 490 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST 491 select WATCHDOG_CORE 492 select MFD_SYSCON if ARCH_EXYNOS 493 help 494 Watchdog timer block in the Samsung SoCs. This will reboot 495 the system when the timer expires with the watchdog enabled. 496 497 The driver is limited by the speed of the system's PCLK 498 signal, so with reasonably fast systems (PCLK around 50-66MHz) 499 then watchdog intervals of over approximately 20seconds are 500 unavailable. 501 502 The driver can be built as a module by choosing M, and will 503 be called s3c2410_wdt 504 505config SA1100_WATCHDOG 506 tristate "SA1100/PXA2xx watchdog" 507 depends on ARCH_SA1100 || ARCH_PXA 508 help 509 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 510 reboot your system when timeout is reached. 511 512 NOTE: once enabled, this timer cannot be disabled. 513 514 To compile this driver as a module, choose M here: the 515 module will be called sa1100_wdt. 516 517config DW_WATCHDOG 518 tristate "Synopsys DesignWare watchdog" 519 depends on HAS_IOMEM 520 select WATCHDOG_CORE 521 help 522 Say Y here if to include support for the Synopsys DesignWare 523 watchdog timer found in many chips. 524 To compile this driver as a module, choose M here: the 525 module will be called dw_wdt. 526 527config EP93XX_WATCHDOG 528 tristate "EP93xx Watchdog" 529 depends on ARCH_EP93XX || COMPILE_TEST 530 select WATCHDOG_CORE 531 help 532 Say Y here if to include support for the watchdog timer 533 embedded in the Cirrus Logic EP93xx family of devices. 534 535 To compile this driver as a module, choose M here: the 536 module will be called ep93xx_wdt. 537 538config OMAP_WATCHDOG 539 tristate "OMAP Watchdog" 540 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 541 select WATCHDOG_CORE 542 help 543 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 544 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 545 546config PNX4008_WATCHDOG 547 tristate "LPC32XX Watchdog" 548 depends on ARCH_LPC32XX || COMPILE_TEST 549 select WATCHDOG_CORE 550 help 551 Say Y here if to include support for the watchdog timer 552 in the LPC32XX processor. 553 This driver can be built as a module by choosing M. The module 554 will be called pnx4008_wdt. 555 556 Say N if you are unsure. 557 558config IOP_WATCHDOG 559 tristate "IOP Watchdog" 560 depends on ARCH_IOP13XX 561 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 562 help 563 Say Y here if to include support for the watchdog timer 564 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 565 be built as a module by choosing M. The module will 566 be called iop_wdt. 567 568 Note: The IOP13XX watchdog does an Internal Bus Reset which will 569 affect both cores and the peripherals of the IOP. The ATU-X 570 and/or ATUe configuration registers will remain intact, but if 571 operating as an Root Complex and/or Central Resource, the PCI-X 572 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 573 574config DAVINCI_WATCHDOG 575 tristate "DaVinci watchdog" 576 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 577 select WATCHDOG_CORE 578 help 579 Say Y here if to include support for the watchdog timer 580 in the DaVinci DM644x/DM646x or Keystone processors. 581 To compile this driver as a module, choose M here: the 582 module will be called davinci_wdt. 583 584 NOTE: once enabled, this timer cannot be disabled. 585 Say N if you are unsure. 586 587config K3_RTI_WATCHDOG 588 tristate "Texas Instruments K3 RTI watchdog" 589 depends on ARCH_K3 || COMPILE_TEST 590 select WATCHDOG_CORE 591 help 592 Say Y here if you want to include support for the K3 watchdog 593 timer (RTI module) available in the K3 generation of processors. 594 595config ORION_WATCHDOG 596 tristate "Orion watchdog" 597 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110) 598 depends on ARM 599 select WATCHDOG_CORE 600 help 601 Say Y here if to include support for the watchdog timer 602 in the Marvell Orion5x and Kirkwood ARM SoCs. 603 To compile this driver as a module, choose M here: the 604 module will be called orion_wdt. 605 606config RN5T618_WATCHDOG 607 tristate "Ricoh RN5T618 watchdog" 608 depends on MFD_RN5T618 || COMPILE_TEST 609 select WATCHDOG_CORE 610 help 611 If you say yes here you get support for watchdog on the Ricoh 612 RN5T618 PMIC. 613 614 This driver can also be built as a module. If so, the module 615 will be called rn5t618_wdt. 616 617config SUNXI_WATCHDOG 618 tristate "Allwinner SoCs watchdog support" 619 depends on ARCH_SUNXI || COMPILE_TEST 620 select WATCHDOG_CORE 621 help 622 Say Y here to include support for the watchdog timer 623 in Allwinner SoCs. 624 To compile this driver as a module, choose M here: the 625 module will be called sunxi_wdt. 626 627config COH901327_WATCHDOG 628 bool "ST-Ericsson COH 901 327 watchdog" 629 depends on ARCH_U300 || (ARM && COMPILE_TEST) 630 default y if MACH_U300 631 select WATCHDOG_CORE 632 help 633 Say Y here to include Watchdog timer support for the 634 watchdog embedded into the ST-Ericsson U300 series platforms. 635 This watchdog is used to reset the system and thus cannot be 636 compiled as a module. 637 638config NPCM7XX_WATCHDOG 639 tristate "Nuvoton NPCM750 watchdog" 640 depends on ARCH_NPCM || COMPILE_TEST 641 default y if ARCH_NPCM7XX 642 select WATCHDOG_CORE 643 help 644 Say Y here to include Watchdog timer support for the 645 watchdog embedded into the NPCM7xx. 646 This watchdog is used to reset the system and thus cannot be 647 compiled as a module. 648 649config TWL4030_WATCHDOG 650 tristate "TWL4030 Watchdog" 651 depends on TWL4030_CORE 652 select WATCHDOG_CORE 653 help 654 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 655 watchdog timer support for TWL4030 chips. 656 657config STMP3XXX_RTC_WATCHDOG 658 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 659 depends on RTC_DRV_STMP || COMPILE_TEST 660 select WATCHDOG_CORE 661 help 662 Say Y here to include support for the watchdog timer inside 663 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 664 To compile this driver as a module, choose M here: the 665 module will be called stmp3xxx_rtc_wdt. 666 667config TS4800_WATCHDOG 668 tristate "TS-4800 Watchdog" 669 depends on HAS_IOMEM && OF 670 depends on SOC_IMX51 || COMPILE_TEST 671 select WATCHDOG_CORE 672 select MFD_SYSCON 673 help 674 Technologic Systems TS-4800 has watchdog timer implemented in 675 an external FPGA. Say Y here if you want to support for the 676 watchdog timer on TS-4800 board. 677 678config TS72XX_WATCHDOG 679 tristate "TS-72XX SBC Watchdog" 680 depends on MACH_TS72XX || COMPILE_TEST 681 help 682 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 683 watchdog timer implemented in a external CPLD chip. Say Y here 684 if you want to support for the watchdog timer on TS-72XX boards. 685 686 To compile this driver as a module, choose M here: the 687 module will be called ts72xx_wdt. 688 689config MAX63XX_WATCHDOG 690 tristate "Max63xx watchdog" 691 depends on HAS_IOMEM 692 select WATCHDOG_CORE 693 help 694 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 695 696config MAX77620_WATCHDOG 697 tristate "Maxim Max77620 Watchdog Timer" 698 depends on MFD_MAX77620 || COMPILE_TEST 699 select WATCHDOG_CORE 700 help 701 This is the driver for the Max77620 watchdog timer. 702 Say 'Y' here to enable the watchdog timer support for 703 MAX77620 chips. To compile this driver as a module, 704 choose M here: the module will be called max77620_wdt. 705 706config IMX2_WDT 707 tristate "IMX2+ Watchdog" 708 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 709 select REGMAP_MMIO 710 select WATCHDOG_CORE 711 help 712 This is the driver for the hardware watchdog 713 on the Freescale IMX2 and later processors. 714 If you have one of these processors and wish to have 715 watchdog support enabled, say Y, otherwise say N. 716 717 To compile this driver as a module, choose M here: the 718 module will be called imx2_wdt. 719 720config IMX_SC_WDT 721 tristate "IMX SC Watchdog" 722 depends on HAVE_ARM_SMCCC 723 depends on IMX_SCU 724 select WATCHDOG_CORE 725 help 726 This is the driver for the system controller watchdog 727 on the NXP i.MX SoCs with system controller inside, the 728 watchdog driver will call ARM SMC API and trap into 729 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 730 will request system controller to execute the operations. 731 If you have one of these processors and wish to have 732 watchdog support enabled, say Y, otherwise say N. 733 734 To compile this driver as a module, choose M here: the 735 module will be called imx_sc_wdt. 736 737config IMX7ULP_WDT 738 tristate "IMX7ULP Watchdog" 739 depends on ARCH_MXC || COMPILE_TEST 740 select WATCHDOG_CORE 741 help 742 This is the driver for the hardware watchdog on the Freescale 743 IMX7ULP and later processors. If you have one of these 744 processors and wish to have watchdog support enabled, 745 say Y, otherwise say N. 746 747 To compile this driver as a module, choose M here: the 748 module will be called imx7ulp_wdt. 749 750config UX500_WATCHDOG 751 tristate "ST-Ericsson Ux500 watchdog" 752 depends on MFD_DB8500_PRCMU 753 select WATCHDOG_CORE 754 default y 755 help 756 Say Y here to include Watchdog timer support for the watchdog 757 existing in the prcmu of ST-Ericsson Ux500 series platforms. 758 759 To compile this driver as a module, choose M here: the 760 module will be called ux500_wdt. 761 762config RETU_WATCHDOG 763 tristate "Retu watchdog" 764 depends on MFD_RETU 765 select WATCHDOG_CORE 766 help 767 Retu watchdog driver for Nokia Internet Tablets (770, N800, 768 N810). At least on N800 the watchdog cannot be disabled, so 769 this driver is essential and you should enable it. 770 771 To compile this driver as a module, choose M here: the 772 module will be called retu_wdt. 773 774config MOXART_WDT 775 tristate "MOXART watchdog" 776 depends on ARCH_MOXART || COMPILE_TEST 777 help 778 Say Y here to include Watchdog timer support for the watchdog 779 existing on the MOXA ART SoC series platforms. 780 781 To compile this driver as a module, choose M here: the 782 module will be called moxart_wdt. 783 784config SIRFSOC_WATCHDOG 785 tristate "SiRFSOC watchdog" 786 depends on ARCH_SIRF || COMPILE_TEST 787 select WATCHDOG_CORE 788 default y 789 help 790 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 791 the watchdog triggers the system will be reset. 792 793config ST_LPC_WATCHDOG 794 tristate "STMicroelectronics LPC Watchdog" 795 depends on ARCH_STI || COMPILE_TEST 796 depends on OF 797 select WATCHDOG_CORE 798 help 799 Say Y here to include STMicroelectronics Low Power Controller 800 (LPC) based Watchdog timer support. 801 802 To compile this driver as a module, choose M here: the 803 module will be called st_lpc_wdt. 804 805config TEGRA_WATCHDOG 806 tristate "Tegra watchdog" 807 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 808 select WATCHDOG_CORE 809 help 810 Say Y here to include support for the watchdog timer 811 embedded in NVIDIA Tegra SoCs. 812 813 To compile this driver as a module, choose M here: the 814 module will be called tegra_wdt. 815 816config QCOM_WDT 817 tristate "QCOM watchdog" 818 depends on HAS_IOMEM 819 depends on ARCH_QCOM || COMPILE_TEST 820 select WATCHDOG_CORE 821 help 822 Say Y here to include Watchdog timer support for the watchdog found 823 on QCOM chipsets. Currently supported targets are the MSM8960, 824 APQ8064, and IPQ8064. 825 826 To compile this driver as a module, choose M here: the 827 module will be called qcom_wdt. 828 829config MESON_GXBB_WATCHDOG 830 tristate "Amlogic Meson GXBB SoCs watchdog support" 831 depends on ARCH_MESON || COMPILE_TEST 832 select WATCHDOG_CORE 833 help 834 Say Y here to include support for the watchdog timer 835 in Amlogic Meson GXBB SoCs. 836 To compile this driver as a module, choose M here: the 837 module will be called meson_gxbb_wdt. 838 839config MESON_WATCHDOG 840 tristate "Amlogic Meson SoCs watchdog support" 841 depends on ARCH_MESON || COMPILE_TEST 842 select WATCHDOG_CORE 843 help 844 Say Y here to include support for the watchdog timer 845 in Amlogic Meson SoCs. 846 To compile this driver as a module, choose M here: the 847 module will be called meson_wdt. 848 849config MEDIATEK_WATCHDOG 850 tristate "Mediatek SoCs watchdog support" 851 depends on ARCH_MEDIATEK || COMPILE_TEST 852 select WATCHDOG_CORE 853 select RESET_CONTROLLER 854 help 855 Say Y here to include support for the watchdog timer 856 in Mediatek SoCs. 857 To compile this driver as a module, choose M here: the 858 module will be called mtk_wdt. 859 860config DIGICOLOR_WATCHDOG 861 tristate "Conexant Digicolor SoCs watchdog support" 862 depends on ARCH_DIGICOLOR || COMPILE_TEST 863 select WATCHDOG_CORE 864 help 865 Say Y here to include support for the watchdog timer 866 in Conexant Digicolor SoCs. 867 To compile this driver as a module, choose M here: the 868 module will be called digicolor_wdt. 869 870config LPC18XX_WATCHDOG 871 tristate "LPC18xx/43xx Watchdog" 872 depends on ARCH_LPC18XX || COMPILE_TEST 873 depends on HAS_IOMEM 874 select WATCHDOG_CORE 875 help 876 Say Y here if to include support for the watchdog timer 877 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 878 processors. 879 To compile this driver as a module, choose M here: the 880 module will be called lpc18xx_wdt. 881 882config ATLAS7_WATCHDOG 883 tristate "CSRatlas7 watchdog" 884 depends on ARCH_ATLAS7 || COMPILE_TEST 885 help 886 Say Y here to include Watchdog timer support for the watchdog 887 existing on the CSRatlas7 series platforms. 888 889 To compile this driver as a module, choose M here: the 890 module will be called atlas7_wdt. 891 892config RENESAS_WDT 893 tristate "Renesas WDT Watchdog" 894 depends on ARCH_RENESAS || COMPILE_TEST 895 select WATCHDOG_CORE 896 help 897 This driver adds watchdog support for the integrated watchdogs in the 898 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 899 900config RENESAS_RZAWDT 901 tristate "Renesas RZ/A WDT Watchdog" 902 depends on ARCH_RENESAS || COMPILE_TEST 903 select WATCHDOG_CORE 904 help 905 This driver adds watchdog support for the integrated watchdogs in the 906 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 907 908config ASPEED_WATCHDOG 909 tristate "Aspeed BMC watchdog support" 910 depends on ARCH_ASPEED || COMPILE_TEST 911 select WATCHDOG_CORE 912 help 913 Say Y here to include support for the watchdog timer 914 in Aspeed BMC SoCs. 915 916 This driver is required to reboot the SoC. 917 918 To compile this driver as a module, choose M here: the 919 module will be called aspeed_wdt. 920 921config ZX2967_WATCHDOG 922 tristate "ZTE zx2967 SoCs watchdog support" 923 depends on ARCH_ZX 924 select WATCHDOG_CORE 925 help 926 Say Y here to include support for the watchdog timer 927 in ZTE zx2967 SoCs. 928 To compile this driver as a module, choose M here: the 929 module will be called zx2967_wdt. 930 931config STM32_WATCHDOG 932 tristate "STM32 Independent WatchDoG (IWDG) support" 933 depends on ARCH_STM32 934 select WATCHDOG_CORE 935 default y 936 help 937 Say Y here to include support for the watchdog timer 938 in stm32 SoCs. 939 940 To compile this driver as a module, choose M here: the 941 module will be called stm32_iwdg. 942 943config STPMIC1_WATCHDOG 944 tristate "STPMIC1 PMIC watchdog support" 945 depends on MFD_STPMIC1 946 select WATCHDOG_CORE 947 help 948 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 949 If the watchdog timer expires, stpmic1 will shut down all its power 950 supplies. 951 952 To compile this driver as a module, choose M here: the 953 module will be called spmic1_wdt. 954 955config UNIPHIER_WATCHDOG 956 tristate "UniPhier watchdog support" 957 depends on ARCH_UNIPHIER || COMPILE_TEST 958 depends on OF && MFD_SYSCON 959 select WATCHDOG_CORE 960 help 961 Say Y here to include support watchdog timer embedded 962 into the UniPhier system. 963 964 To compile this driver as a module, choose M here: the 965 module will be called uniphier_wdt. 966 967config RTD119X_WATCHDOG 968 bool "Realtek RTD119x/RTD129x watchdog support" 969 depends on ARCH_REALTEK || COMPILE_TEST 970 depends on OF 971 select WATCHDOG_CORE 972 default ARCH_REALTEK 973 help 974 Say Y here to include support for the watchdog timer in 975 Realtek RTD1295 SoCs. 976 977config SPRD_WATCHDOG 978 tristate "Spreadtrum watchdog support" 979 depends on ARCH_SPRD || COMPILE_TEST 980 select WATCHDOG_CORE 981 help 982 Say Y here to include watchdog timer supported 983 by Spreadtrum system. 984 985config PM8916_WATCHDOG 986 tristate "QCOM PM8916 pmic watchdog" 987 depends on OF && MFD_SPMI_PMIC 988 select WATCHDOG_CORE 989 help 990 Say Y here to include support watchdog timer embedded into the 991 pm8916 module. 992 993# X86 (i386 + ia64 + x86_64) Architecture 994 995config ACQUIRE_WDT 996 tristate "Acquire SBC Watchdog Timer" 997 depends on X86 998 ---help--- 999 This is the driver for the hardware watchdog on Single Board 1000 Computers produced by Acquire Inc (and others). This watchdog 1001 simply watches your kernel to make sure it doesn't freeze, and if 1002 it does, it reboots your computer after a certain amount of time. 1003 1004 To compile this driver as a module, choose M here: the 1005 module will be called acquirewdt. 1006 1007 Most people will say N. 1008 1009config ADVANTECH_WDT 1010 tristate "Advantech SBC Watchdog Timer" 1011 depends on X86 1012 help 1013 If you are configuring a Linux kernel for the Advantech single-board 1014 computer, say `Y' here to support its built-in watchdog timer 1015 feature. More information can be found at 1016 <http://www.advantech.com.tw/products/> 1017 1018config ALIM1535_WDT 1019 tristate "ALi M1535 PMU Watchdog Timer" 1020 depends on X86 && PCI 1021 ---help--- 1022 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1023 1024 To compile this driver as a module, choose M here: the 1025 module will be called alim1535_wdt. 1026 1027 Most people will say N. 1028 1029config ALIM7101_WDT 1030 tristate "ALi M7101 PMU Computer Watchdog" 1031 depends on PCI 1032 help 1033 This is the driver for the hardware watchdog on the ALi M7101 PMU 1034 as used in the x86 Cobalt servers and also found in some 1035 SPARC Netra servers too. 1036 1037 To compile this driver as a module, choose M here: the 1038 module will be called alim7101_wdt. 1039 1040 Most people will say N. 1041 1042config EBC_C384_WDT 1043 tristate "WinSystems EBC-C384 Watchdog Timer" 1044 depends on X86 1045 select ISA_BUS_API 1046 select WATCHDOG_CORE 1047 help 1048 Enables watchdog timer support for the watchdog timer on the 1049 WinSystems EBC-C384 motherboard. The timeout may be configured via 1050 the timeout module parameter. 1051 1052config F71808E_WDT 1053 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1054 depends on X86 1055 help 1056 This is the driver for the hardware watchdog on the Fintek F71808E, 1057 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1058 F81866 Super I/O controllers. 1059 1060 You can compile this driver directly into the kernel, or use 1061 it as a module. The module will be called f71808e_wdt. 1062 1063config SP5100_TCO 1064 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1065 depends on X86 && PCI 1066 select WATCHDOG_CORE 1067 ---help--- 1068 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1069 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1070 the machine after its expiration. The expiration time can be 1071 configured with the "heartbeat" parameter. 1072 1073 To compile this driver as a module, choose M here: the 1074 module will be called sp5100_tco. 1075 1076config GEODE_WDT 1077 tristate "AMD Geode CS5535/CS5536 Watchdog" 1078 depends on CS5535_MFGPT 1079 help 1080 This driver enables a watchdog capability built into the 1081 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1082 processors. This watchdog watches your kernel to make sure 1083 it doesn't freeze, and if it does, it reboots your computer after 1084 a certain amount of time. 1085 1086 You can compile this driver directly into the kernel, or use 1087 it as a module. The module will be called geodewdt. 1088 1089config SC520_WDT 1090 tristate "AMD Elan SC520 processor Watchdog" 1091 depends on MELAN || COMPILE_TEST 1092 help 1093 This is the driver for the hardware watchdog built in to the 1094 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1095 This watchdog simply watches your kernel to make sure it doesn't 1096 freeze, and if it does, it reboots your computer after a certain 1097 amount of time. 1098 1099 You can compile this driver directly into the kernel, or use 1100 it as a module. The module will be called sc520_wdt. 1101 1102config SBC_FITPC2_WATCHDOG 1103 tristate "Compulab SBC-FITPC2 watchdog" 1104 depends on X86 1105 ---help--- 1106 This is the driver for the built-in watchdog timer on the fit-PC2, 1107 fit-PC2i, CM-iAM single-board computers made by Compulab. 1108 1109 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 1110 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 1111 1112 Entering BIOS setup temporary disables watchdog operation regardless to current state, 1113 so system will not be restarted while user in BIOS setup. 1114 1115 Once watchdog was enabled the system will be restarted every 1116 "Watchdog Timer Value" period, so to prevent it user can restart or 1117 disable the watchdog. 1118 1119 To compile this driver as a module, choose M here: the 1120 module will be called sbc_fitpc2_wdt. 1121 1122 Most people will say N. 1123 1124config EUROTECH_WDT 1125 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1126 depends on X86 1127 help 1128 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1129 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1130 information are at <http://www.eurotech.it/>. 1131 1132config IB700_WDT 1133 tristate "IB700 SBC Watchdog Timer" 1134 depends on X86 1135 ---help--- 1136 This is the driver for the hardware watchdog on the IB700 Single 1137 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 1138 simply watches your kernel to make sure it doesn't freeze, and if 1139 it does, it reboots your computer after a certain amount of time. 1140 1141 This driver is like the WDT501 driver but for slightly different hardware. 1142 1143 To compile this driver as a module, choose M here: the 1144 module will be called ib700wdt. 1145 1146 Most people will say N. 1147 1148config IBMASR 1149 tristate "IBM Automatic Server Restart" 1150 depends on X86 1151 help 1152 This is the driver for the IBM Automatic Server Restart watchdog 1153 timer built-in into some eServer xSeries machines. 1154 1155 To compile this driver as a module, choose M here: the 1156 module will be called ibmasr. 1157 1158config WAFER_WDT 1159 tristate "ICP Single Board Computer Watchdog Timer" 1160 depends on X86 1161 help 1162 This is a driver for the hardware watchdog on the ICP Single 1163 Board Computer. This driver is working on (at least) the following 1164 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1165 1166 To compile this driver as a module, choose M here: the 1167 module will be called wafer5823wdt. 1168 1169config I6300ESB_WDT 1170 tristate "Intel 6300ESB Timer/Watchdog" 1171 depends on PCI 1172 select WATCHDOG_CORE 1173 ---help--- 1174 Hardware driver for the watchdog timer built into the Intel 1175 6300ESB controller hub. 1176 1177 To compile this driver as a module, choose M here: the 1178 module will be called i6300esb. 1179 1180config IE6XX_WDT 1181 tristate "Intel Atom E6xx Watchdog" 1182 depends on X86 && PCI 1183 select WATCHDOG_CORE 1184 select MFD_CORE 1185 select LPC_SCH 1186 ---help--- 1187 Hardware driver for the watchdog timer built into the Intel 1188 Atom E6XX (TunnelCreek) processor. 1189 1190 To compile this driver as a module, choose M here: the 1191 module will be called ie6xx_wdt. 1192 1193config INTEL_SCU_WATCHDOG 1194 bool "Intel SCU Watchdog for Mobile Platforms" 1195 depends on X86_INTEL_MID 1196 ---help--- 1197 Hardware driver for the watchdog time built into the Intel SCU 1198 for Intel Mobile Platforms. 1199 1200 To compile this driver as a module, choose M here. 1201 1202config INTEL_MID_WATCHDOG 1203 tristate "Intel MID Watchdog Timer" 1204 depends on X86_INTEL_MID 1205 select WATCHDOG_CORE 1206 ---help--- 1207 Watchdog timer driver built into the Intel SCU for Intel MID 1208 Platforms. 1209 1210 This driver currently supports only the watchdog evolution 1211 implementation in SCU, available for Merrifield generation. 1212 1213 To compile this driver as a module, choose M here. 1214 1215config ITCO_WDT 1216 tristate "Intel TCO Timer/Watchdog" 1217 depends on (X86 || IA64) && PCI 1218 select WATCHDOG_CORE 1219 depends on I2C || I2C=n 1220 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1221 select LPC_ICH if !EXPERT 1222 select I2C_I801 if !EXPERT && I2C 1223 ---help--- 1224 Hardware driver for the intel TCO timer based watchdog devices. 1225 These drivers are included in the Intel 82801 I/O Controller 1226 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1227 controller hub. 1228 1229 The TCO (Total Cost of Ownership) timer is a watchdog timer 1230 that will reboot the machine after its second expiration. The 1231 expiration time can be configured with the "heartbeat" parameter. 1232 1233 On some motherboards the driver may fail to reset the chipset's 1234 NO_REBOOT flag which prevents the watchdog from rebooting the 1235 machine. If this is the case you will get a kernel message like 1236 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1237 1238 To compile this driver as a module, choose M here: the 1239 module will be called iTCO_wdt. 1240 1241config ITCO_VENDOR_SUPPORT 1242 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1243 depends on ITCO_WDT 1244 ---help--- 1245 Add vendor specific support to the intel TCO timer based watchdog 1246 devices. At this moment we only have additional support for some 1247 SuperMicro Inc. motherboards. 1248 1249config IT8712F_WDT 1250 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1251 depends on X86 1252 ---help--- 1253 This is the driver for the built-in watchdog timer on the IT8712F 1254 Super I/0 chipset used on many motherboards. 1255 1256 If the driver does not work, then make sure that the game port in 1257 the BIOS is enabled. 1258 1259 To compile this driver as a module, choose M here: the 1260 module will be called it8712f_wdt. 1261 1262config IT87_WDT 1263 tristate "IT87 Watchdog Timer" 1264 depends on X86 1265 select WATCHDOG_CORE 1266 ---help--- 1267 This is the driver for the hardware watchdog on the ITE IT8607, 1268 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1269 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1270 IT8783 Super I/O chips. 1271 1272 This watchdog simply watches your kernel to make sure it doesn't 1273 freeze, and if it does, it reboots your computer after a certain 1274 amount of time. 1275 1276 To compile this driver as a module, choose M here: the module will 1277 be called it87_wdt. 1278 1279config HP_WATCHDOG 1280 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1281 select WATCHDOG_CORE 1282 depends on X86 && PCI 1283 help 1284 A software monitoring watchdog and NMI handling driver. This driver 1285 will detect lockups and provide a stack trace. This is a driver that 1286 will only load on an HP ProLiant system with a minimum of iLO2 support. 1287 To compile this driver as a module, choose M here: the module will be 1288 called hpwdt. 1289 1290config HPWDT_NMI_DECODING 1291 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1292 depends on HP_WATCHDOG 1293 default y 1294 help 1295 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1296 "Generate NMI to System" virtual button. When an NMI is claimed 1297 by the driver, panic is called. 1298 1299config KEMPLD_WDT 1300 tristate "Kontron COM Watchdog Timer" 1301 depends on MFD_KEMPLD 1302 select WATCHDOG_CORE 1303 help 1304 Support for the PLD watchdog on some Kontron ETX and COMexpress 1305 (ETXexpress) modules 1306 1307 This driver can also be built as a module. If so, the module will be 1308 called kempld_wdt. 1309 1310config SC1200_WDT 1311 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1312 depends on X86 1313 help 1314 This is a driver for National Semiconductor PC87307/PC97307 hardware 1315 watchdog cards as found on the SC1200. This watchdog is mainly used 1316 for power management purposes and can be used to power down the device 1317 during inactivity periods (includes interrupt activity monitoring). 1318 1319 To compile this driver as a module, choose M here: the 1320 module will be called sc1200wdt. 1321 1322 Most people will say N. 1323 1324config SCx200_WDT 1325 tristate "National Semiconductor SCx200 Watchdog" 1326 depends on SCx200 && PCI 1327 help 1328 Enable the built-in watchdog timer support on the National 1329 Semiconductor SCx200 processors. 1330 1331 If compiled as a module, it will be called scx200_wdt. 1332 1333config PC87413_WDT 1334 tristate "NS PC87413 watchdog" 1335 depends on X86 1336 ---help--- 1337 This is the driver for the hardware watchdog on the PC87413 chipset 1338 This watchdog simply watches your kernel to make sure it doesn't 1339 freeze, and if it does, it reboots your computer after a certain 1340 amount of time. 1341 1342 To compile this driver as a module, choose M here: the 1343 module will be called pc87413_wdt. 1344 1345 Most people will say N. 1346 1347config NV_TCO 1348 tristate "nVidia TCO Timer/Watchdog" 1349 depends on X86 && PCI 1350 ---help--- 1351 Hardware driver for the TCO timer built into the nVidia Hub family 1352 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1353 watchdog timer that will reboot the machine after its second 1354 expiration. The expiration time can be configured with the 1355 "heartbeat" parameter. 1356 1357 On some motherboards the driver may fail to reset the chipset's 1358 NO_REBOOT flag which prevents the watchdog from rebooting the 1359 machine. If this is the case you will get a kernel message like 1360 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1361 1362 To compile this driver as a module, choose M here: the 1363 module will be called nv_tco. 1364 1365config RDC321X_WDT 1366 tristate "RDC R-321x SoC watchdog" 1367 depends on X86_RDC321X || COMPILE_TEST 1368 depends on PCI 1369 help 1370 This is the driver for the built in hardware watchdog 1371 in the RDC R-321x SoC. 1372 1373 To compile this driver as a module, choose M here: the 1374 module will be called rdc321x_wdt. 1375 1376config 60XX_WDT 1377 tristate "SBC-60XX Watchdog Timer" 1378 depends on X86 1379 help 1380 This driver can be used with the watchdog timer found on some 1381 single board computers, namely the 6010 PII based computer. 1382 It may well work with other cards. It reads port 0x443 to enable 1383 and re-set the watchdog timer, and reads port 0x45 to disable 1384 the watchdog. If you have a card that behave in similar ways, 1385 you can probably make this driver work with your card as well. 1386 1387 You can compile this driver directly into the kernel, or use 1388 it as a module. The module will be called sbc60xxwdt. 1389 1390config SBC8360_WDT 1391 tristate "SBC8360 Watchdog Timer" 1392 depends on X86_32 1393 ---help--- 1394 1395 This is the driver for the hardware watchdog on the SBC8360 Single 1396 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1397 1398 To compile this driver as a module, choose M here: the 1399 module will be called sbc8360. 1400 1401 Most people will say N. 1402 1403config SBC7240_WDT 1404 tristate "SBC Nano 7240 Watchdog Timer" 1405 depends on X86_32 && !UML 1406 ---help--- 1407 This is the driver for the hardware watchdog found on the IEI 1408 single board computers EPIC Nano 7240 (and likely others). This 1409 watchdog simply watches your kernel to make sure it doesn't freeze, 1410 and if it does, it reboots your computer after a certain amount of 1411 time. 1412 1413 To compile this driver as a module, choose M here: the 1414 module will be called sbc7240_wdt. 1415 1416config CPU5_WDT 1417 tristate "SMA CPU5 Watchdog" 1418 depends on X86 1419 ---help--- 1420 TBD. 1421 To compile this driver as a module, choose M here: the 1422 module will be called cpu5wdt. 1423 1424config SMSC_SCH311X_WDT 1425 tristate "SMSC SCH311X Watchdog Timer" 1426 depends on X86 1427 ---help--- 1428 This is the driver for the hardware watchdog timer on the 1429 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1430 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1431 serial ports). 1432 1433 To compile this driver as a module, choose M here: the 1434 module will be called sch311x_wdt. 1435 1436config SMSC37B787_WDT 1437 tristate "Winbond SMsC37B787 Watchdog Timer" 1438 depends on X86 1439 ---help--- 1440 This is the driver for the hardware watchdog component on the 1441 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1442 from Vision Systems and maybe others. 1443 1444 This watchdog simply watches your kernel to make sure it doesn't 1445 freeze, and if it does, it reboots your computer after a certain 1446 amount of time. 1447 1448 Usually a userspace daemon will notify the kernel WDT driver that 1449 userspace is still alive, at regular intervals. 1450 1451 To compile this driver as a module, choose M here: the 1452 module will be called smsc37b787_wdt. 1453 1454 Most people will say N. 1455 1456config TQMX86_WDT 1457 tristate "TQ-Systems TQMX86 Watchdog Timer" 1458 depends on X86 1459 select WATCHDOG_CORE 1460 help 1461 This is the driver for the hardware watchdog timer in the TQMX86 IO 1462 controller found on some of their ComExpress Modules. 1463 1464 To compile this driver as a module, choose M here; the module 1465 will be called tqmx86_wdt. 1466 1467 Most people will say N. 1468 1469config VIA_WDT 1470 tristate "VIA Watchdog Timer" 1471 depends on X86 && PCI 1472 select WATCHDOG_CORE 1473 ---help--- 1474 This is the driver for the hardware watchdog timer on VIA 1475 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1476 1477 To compile this driver as a module, choose M here; the module 1478 will be called via_wdt. 1479 1480 Most people will say N. 1481 1482config W83627HF_WDT 1483 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1484 depends on X86 1485 select WATCHDOG_CORE 1486 ---help--- 1487 This is the driver for the hardware watchdog on the following 1488 Super I/O chips. 1489 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1490 W83637HF 1491 W83667HG/HG-B 1492 W83687THF 1493 W83697HF 1494 W83697UG 1495 NCT6775 1496 NCT6776 1497 NCT6779 1498 NCT6791 1499 NCT6792 1500 NCT6102D/04D/06D 1501 NCT6116D 1502 1503 This watchdog simply watches your kernel to make sure it doesn't 1504 freeze, and if it does, it reboots your computer after a certain 1505 amount of time. 1506 1507 To compile this driver as a module, choose M here: the 1508 module will be called w83627hf_wdt. 1509 1510 Most people will say N. 1511 1512config W83877F_WDT 1513 tristate "W83877F (EMACS) Watchdog Timer" 1514 depends on X86 1515 ---help--- 1516 This is the driver for the hardware watchdog on the W83877F chipset 1517 as used in EMACS PC-104 motherboards (and likely others). This 1518 watchdog simply watches your kernel to make sure it doesn't freeze, 1519 and if it does, it reboots your computer after a certain amount of 1520 time. 1521 1522 To compile this driver as a module, choose M here: the 1523 module will be called w83877f_wdt. 1524 1525 Most people will say N. 1526 1527config W83977F_WDT 1528 tristate "W83977F (PCM-5335) Watchdog Timer" 1529 depends on X86 1530 ---help--- 1531 This is the driver for the hardware watchdog on the W83977F I/O chip 1532 as used in AAEON's PCM-5335 SBC (and likely others). This 1533 watchdog simply watches your kernel to make sure it doesn't freeze, 1534 and if it does, it reboots your computer after a certain amount of 1535 time. 1536 1537 To compile this driver as a module, choose M here: the 1538 module will be called w83977f_wdt. 1539 1540config MACHZ_WDT 1541 tristate "ZF MachZ Watchdog" 1542 depends on X86 1543 ---help--- 1544 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1545 N. This is the driver for the watchdog timer built-in on that 1546 processor using ZF-Logic interface. This watchdog simply watches 1547 your kernel to make sure it doesn't freeze, and if it does, it 1548 reboots your computer after a certain amount of time. 1549 1550 To compile this driver as a module, choose M here: the 1551 module will be called machzwd. 1552 1553config SBC_EPX_C3_WATCHDOG 1554 tristate "Winsystems SBC EPX-C3 watchdog" 1555 depends on X86 1556 ---help--- 1557 This is the driver for the built-in watchdog timer on the EPX-C3 1558 Single-board computer made by Winsystems, Inc. 1559 1560 *Note*: This hardware watchdog is not probeable and thus there 1561 is no way to know if writing to its IO address will corrupt 1562 your system or have any real effect. The only way to be sure 1563 that this driver does what you want is to make sure you 1564 are running it on an EPX-C3 from Winsystems with the watchdog 1565 timer at IO address 0x1ee and 0x1ef. It will write to both those 1566 IO ports. Basically, the assumption is made that if you compile 1567 this driver into your kernel and/or load it as a module, that you 1568 know what you are doing and that you are in fact running on an 1569 EPX-C3 board! 1570 1571 To compile this driver as a module, choose M here: the 1572 module will be called sbc_epx_c3. 1573 1574config INTEL_MEI_WDT 1575 tristate "Intel MEI iAMT Watchdog" 1576 depends on INTEL_MEI && X86 1577 select WATCHDOG_CORE 1578 ---help--- 1579 A device driver for the Intel MEI iAMT watchdog. 1580 1581 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1582 Whenever the OS hangs or crashes, iAMT will send an event 1583 to any subscriber to this event. The watchdog doesn't reset the 1584 the platform. 1585 1586 To compile this driver as a module, choose M here: 1587 the module will be called mei_wdt. 1588 1589config NI903X_WDT 1590 tristate "NI 903x/913x Watchdog" 1591 depends on X86 && ACPI 1592 select WATCHDOG_CORE 1593 ---help--- 1594 This is the driver for the watchdog timer on the National Instruments 1595 903x/913x real-time controllers. 1596 1597 To compile this driver as a module, choose M here: the module will be 1598 called ni903x_wdt. 1599 1600config NIC7018_WDT 1601 tristate "NIC7018 Watchdog" 1602 depends on X86 && ACPI 1603 select WATCHDOG_CORE 1604 ---help--- 1605 Support for National Instruments NIC7018 Watchdog. 1606 1607 To compile this driver as a module, choose M here: the module will be 1608 called nic7018_wdt. 1609 1610# M68K Architecture 1611 1612config M54xx_WATCHDOG 1613 tristate "MCF54xx watchdog support" 1614 depends on M548x 1615 help 1616 To compile this driver as a module, choose M here: the 1617 module will be called m54xx_wdt. 1618 1619# MicroBlaze Architecture 1620 1621# MIPS Architecture 1622 1623config ATH79_WDT 1624 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1625 depends on ATH79 || (ARM && COMPILE_TEST) 1626 help 1627 Hardware driver for the built-in watchdog timer on the Atheros 1628 AR71XX/AR724X/AR913X SoCs. 1629 1630config BCM47XX_WDT 1631 tristate "Broadcom BCM47xx Watchdog Timer" 1632 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1633 select WATCHDOG_CORE 1634 help 1635 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1636 1637config RC32434_WDT 1638 tristate "IDT RC32434 SoC Watchdog Timer" 1639 depends on MIKROTIK_RB532 1640 help 1641 Hardware driver for the IDT RC32434 SoC built-in 1642 watchdog timer. 1643 1644 To compile this driver as a module, choose M here: the 1645 module will be called rc32434_wdt. 1646 1647config INDYDOG 1648 tristate "Indy/I2 Hardware Watchdog" 1649 depends on SGI_HAS_INDYDOG 1650 help 1651 Hardware driver for the Indy's/I2's watchdog. This is a 1652 watchdog timer that will reboot the machine after a 60 second 1653 timer expired and no process has written to /dev/watchdog during 1654 that time. 1655 1656config JZ4740_WDT 1657 tristate "Ingenic jz4740 SoC hardware watchdog" 1658 depends on MIPS 1659 depends on COMMON_CLK 1660 select WATCHDOG_CORE 1661 select MFD_SYSCON 1662 help 1663 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1664 1665config WDT_MTX1 1666 tristate "MTX-1 Hardware Watchdog" 1667 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1668 help 1669 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1670 will reboot the machine after a 100 seconds timer expired. 1671 1672config PNX833X_WDT 1673 tristate "PNX833x Hardware Watchdog" 1674 depends on SOC_PNX8335 1675 depends on BROKEN 1676 help 1677 Hardware driver for the PNX833x's watchdog. This is a 1678 watchdog timer that will reboot the machine after a programmable 1679 timer has expired and no process has written to /dev/watchdog during 1680 that time. 1681 1682config SIBYTE_WDOG 1683 tristate "Sibyte SoC hardware watchdog" 1684 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1685 help 1686 Watchdog driver for the built in watchdog hardware in Sibyte 1687 SoC processors. There are apparently two watchdog timers 1688 on such processors; this driver supports only the first one, 1689 because currently Linux only supports exporting one watchdog 1690 to userspace. 1691 1692 To compile this driver as a loadable module, choose M here. 1693 The module will be called sb_wdog. 1694 1695config AR7_WDT 1696 tristate "TI AR7 Watchdog Timer" 1697 depends on AR7 || (MIPS && COMPILE_TEST) 1698 help 1699 Hardware driver for the TI AR7 Watchdog Timer. 1700 1701config TXX9_WDT 1702 tristate "Toshiba TXx9 Watchdog Timer" 1703 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1704 select WATCHDOG_CORE 1705 help 1706 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1707 1708config OCTEON_WDT 1709 tristate "Cavium OCTEON SOC family Watchdog Timer" 1710 depends on CAVIUM_OCTEON_SOC 1711 default y 1712 select WATCHDOG_CORE 1713 select EXPORT_UASM if OCTEON_WDT = m 1714 help 1715 Hardware driver for OCTEON's on chip watchdog timer. 1716 Enables the watchdog for all cores running Linux. It 1717 installs a NMI handler and pokes the watchdog based on an 1718 interrupt. On first expiration of the watchdog, the 1719 interrupt handler pokes it. The second expiration causes an 1720 NMI that prints a message. The third expiration causes a 1721 global soft reset. 1722 1723 When userspace has /dev/watchdog open, no poking is done 1724 from the first interrupt, it is then only poked when the 1725 device is written. 1726 1727config BCM63XX_WDT 1728 tristate "Broadcom BCM63xx hardware watchdog" 1729 depends on BCM63XX 1730 help 1731 Watchdog driver for the built in watchdog hardware in Broadcom 1732 BCM63xx SoC. 1733 1734 To compile this driver as a loadable module, choose M here. 1735 The module will be called bcm63xx_wdt. 1736 1737config BCM2835_WDT 1738 tristate "Broadcom BCM2835 hardware watchdog" 1739 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1740 select WATCHDOG_CORE 1741 help 1742 Watchdog driver for the built in watchdog hardware in Broadcom 1743 BCM2835 SoC. 1744 1745 To compile this driver as a loadable module, choose M here. 1746 The module will be called bcm2835_wdt. 1747 1748config BCM_KONA_WDT 1749 tristate "BCM Kona Watchdog" 1750 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1751 select WATCHDOG_CORE 1752 help 1753 Support for the watchdog timer on the following Broadcom BCM281xx 1754 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1755 BCM28155 variants. 1756 1757 Say 'Y' or 'M' here to enable the driver. The module will be called 1758 bcm_kona_wdt. 1759 1760config BCM_KONA_WDT_DEBUG 1761 bool "DEBUGFS support for BCM Kona Watchdog" 1762 depends on BCM_KONA_WDT 1763 help 1764 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1765 access to the driver's internal data structures as well as watchdog 1766 timer hardware registres. 1767 1768 If in doubt, say 'N'. 1769 1770config BCM7038_WDT 1771 tristate "BCM7038 Watchdog" 1772 select WATCHDOG_CORE 1773 depends on HAS_IOMEM 1774 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1775 help 1776 Watchdog driver for the built-in hardware in Broadcom 7038 and 1777 later SoCs used in set-top boxes. BCM7038 was made public 1778 during the 2004 CES, and since then, many Broadcom chips use this 1779 watchdog block, including some cable modem chips. 1780 1781config IMGPDC_WDT 1782 tristate "Imagination Technologies PDC Watchdog Timer" 1783 depends on HAS_IOMEM 1784 depends on MIPS || COMPILE_TEST 1785 select WATCHDOG_CORE 1786 help 1787 Driver for Imagination Technologies PowerDown Controller 1788 Watchdog Timer. 1789 1790 To compile this driver as a loadable module, choose M here. 1791 The module will be called imgpdc_wdt. 1792 1793config LANTIQ_WDT 1794 tristate "Lantiq SoC watchdog" 1795 depends on LANTIQ 1796 select WATCHDOG_CORE 1797 help 1798 Hardware driver for the Lantiq SoC Watchdog Timer. 1799 1800config LOONGSON1_WDT 1801 tristate "Loongson1 SoC hardware watchdog" 1802 depends on MACH_LOONGSON32 1803 select WATCHDOG_CORE 1804 help 1805 Hardware driver for the Loongson1 SoC Watchdog Timer. 1806 1807config RALINK_WDT 1808 tristate "Ralink SoC watchdog" 1809 select WATCHDOG_CORE 1810 depends on RALINK 1811 help 1812 Hardware driver for the Ralink SoC Watchdog Timer. 1813 1814config MT7621_WDT 1815 tristate "Mediatek SoC watchdog" 1816 select WATCHDOG_CORE 1817 depends on SOC_MT7620 || SOC_MT7621 1818 help 1819 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1820 1821config PIC32_WDT 1822 tristate "Microchip PIC32 hardware watchdog" 1823 select WATCHDOG_CORE 1824 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1825 help 1826 Watchdog driver for the built in watchdog hardware in a PIC32. 1827 1828 Configuration bits must be set appropriately for the watchdog to be 1829 controlled by this driver. 1830 1831 To compile this driver as a loadable module, choose M here. 1832 The module will be called pic32-wdt. 1833 1834config PIC32_DMT 1835 tristate "Microchip PIC32 Deadman Timer" 1836 select WATCHDOG_CORE 1837 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1838 help 1839 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1840 timer is typically be used in misson critical and safety critical 1841 applications, where any single failure of the software functionality 1842 and sequencing must be detected. 1843 1844 To compile this driver as a loadable module, choose M here. 1845 The module will be called pic32-dmt. 1846 1847# PARISC Architecture 1848 1849# POWERPC Architecture 1850 1851config GEF_WDT 1852 tristate "GE Watchdog Timer" 1853 depends on GE_FPGA 1854 ---help--- 1855 Watchdog timer found in a number of GE single board computers. 1856 1857config MPC5200_WDT 1858 bool "MPC52xx Watchdog Timer" 1859 depends on PPC_MPC52xx || COMPILE_TEST 1860 help 1861 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1862 1863config 8xxx_WDT 1864 tristate "MPC8xxx Platform Watchdog Timer" 1865 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1866 select WATCHDOG_CORE 1867 help 1868 This driver is for a SoC level watchdog that exists on some 1869 Freescale PowerPC processors. So far this driver supports: 1870 - MPC8xx watchdogs 1871 - MPC83xx watchdogs 1872 - MPC86xx watchdogs 1873 1874 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1875 1876config MV64X60_WDT 1877 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1878 depends on MV64X60 || COMPILE_TEST 1879 1880config PIKA_WDT 1881 tristate "PIKA FPGA Watchdog" 1882 depends on WARP || (PPC64 && COMPILE_TEST) 1883 default y 1884 help 1885 This enables the watchdog in the PIKA FPGA. Currently used on 1886 the Warp platform. 1887 1888config BOOKE_WDT 1889 tristate "PowerPC Book-E Watchdog Timer" 1890 depends on BOOKE || 4xx 1891 select WATCHDOG_CORE 1892 ---help--- 1893 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1894 MPC85xx SOCs and the IBM PowerPC 440. 1895 1896 Please see Documentation/watchdog/watchdog-api.rst for 1897 more information. 1898 1899config BOOKE_WDT_DEFAULT_TIMEOUT 1900 int "PowerPC Book-E Watchdog Timer Default Timeout" 1901 depends on BOOKE_WDT 1902 default 38 if PPC_FSL_BOOK3E 1903 range 0 63 if PPC_FSL_BOOK3E 1904 default 3 if !PPC_FSL_BOOK3E 1905 range 0 3 if !PPC_FSL_BOOK3E 1906 help 1907 Select the default watchdog timer period to be used by the PowerPC 1908 Book-E watchdog driver. A watchdog "event" occurs when the bit 1909 position represented by this number transitions from zero to one. 1910 1911 For Freescale Book-E processors, this is a number between 0 and 63. 1912 For other Book-E processors, this is a number between 0 and 3. 1913 1914 The value can be overridden by the wdt_period command-line parameter. 1915 1916config MEN_A21_WDT 1917 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1918 select WATCHDOG_CORE 1919 depends on GPIOLIB || COMPILE_TEST 1920 help 1921 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1922 1923 The driver can also be built as a module. If so, the module will be 1924 called mena21_wdt. 1925 1926 If unsure select N here. 1927 1928# PPC64 Architecture 1929 1930config WATCHDOG_RTAS 1931 tristate "RTAS watchdog" 1932 depends on PPC_RTAS 1933 help 1934 This driver adds watchdog support for the RTAS watchdog. 1935 1936 To compile this driver as a module, choose M here. The module 1937 will be called wdrtas. 1938 1939# S390 Architecture 1940 1941config DIAG288_WATCHDOG 1942 tristate "System z diag288 Watchdog" 1943 depends on S390 1944 select WATCHDOG_CORE 1945 help 1946 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1947 provide a virtual watchdog timer to their guest that cause a 1948 user define Control Program command to be executed after a 1949 timeout. 1950 LPAR provides a very similar interface. This driver handles 1951 both. 1952 1953 To compile this driver as a module, choose M here. The module 1954 will be called diag288_wdt. 1955 1956# SUPERH (sh + sh64) Architecture 1957 1958config SH_WDT 1959 tristate "SuperH Watchdog" 1960 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1961 select WATCHDOG_CORE 1962 help 1963 This driver adds watchdog support for the integrated watchdog in the 1964 SuperH processors. If you have one of these processors and wish 1965 to have watchdog support enabled, say Y, otherwise say N. 1966 1967 As a side note, saying Y here will automatically boost HZ to 1000 1968 so that the timer has a chance to clear the overflow counter. On 1969 slower systems (such as the SH-2 and SH-3) this will likely yield 1970 some performance issues. As such, the WDT should be avoided here 1971 unless it is absolutely necessary. 1972 1973 To compile this driver as a module, choose M here: the 1974 module will be called shwdt. 1975 1976# SPARC Architecture 1977 1978# SPARC64 Architecture 1979 1980config WATCHDOG_CP1XXX 1981 tristate "CP1XXX Hardware Watchdog support" 1982 depends on SPARC64 && PCI 1983 ---help--- 1984 This is the driver for the hardware watchdog timers present on 1985 Sun Microsystems CompactPCI models CP1400 and CP1500. 1986 1987 To compile this driver as a module, choose M here: the 1988 module will be called cpwatchdog. 1989 1990 If you do not have a CompactPCI model CP1400 or CP1500, or 1991 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1992 you should say N to this option. 1993 1994config WATCHDOG_RIO 1995 tristate "RIO Hardware Watchdog support" 1996 depends on SPARC64 && PCI 1997 help 1998 Say Y here to support the hardware watchdog capability on Sun RIO 1999 machines. The watchdog timeout period is normally one minute but 2000 can be changed with a boot-time parameter. 2001 2002config WATCHDOG_SUN4V 2003 tristate "Sun4v Watchdog support" 2004 select WATCHDOG_CORE 2005 depends on SPARC64 2006 help 2007 Say Y here to support the hypervisor watchdog capability embedded 2008 in the SPARC sun4v architecture. 2009 2010 To compile this driver as a module, choose M here. The module will 2011 be called sun4v_wdt. 2012 2013# XTENSA Architecture 2014 2015# Xen Architecture 2016 2017config XEN_WDT 2018 tristate "Xen Watchdog support" 2019 depends on XEN 2020 select WATCHDOG_CORE 2021 help 2022 Say Y here to support the hypervisor watchdog capability provided 2023 by Xen 4.0 and newer. The watchdog timeout period is normally one 2024 minute but can be changed with a boot-time parameter. 2025 2026config UML_WATCHDOG 2027 tristate "UML watchdog" 2028 depends on UML || COMPILE_TEST 2029 2030# 2031# ISA-based Watchdog Cards 2032# 2033 2034comment "ISA-based Watchdog Cards" 2035 depends on ISA 2036 2037config PCWATCHDOG 2038 tristate "Berkshire Products ISA-PC Watchdog" 2039 depends on ISA 2040 ---help--- 2041 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2042 This card simply watches your kernel to make sure it doesn't freeze, 2043 and if it does, it reboots your computer after a certain amount of 2044 time. This driver is like the WDT501 driver but for different 2045 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC 2046 watchdog cards can be ordered from <http://www.berkprod.com/>. 2047 2048 To compile this driver as a module, choose M here: the 2049 module will be called pcwd. 2050 2051 Most people will say N. 2052 2053config MIXCOMWD 2054 tristate "Mixcom Watchdog" 2055 depends on ISA 2056 ---help--- 2057 This is a driver for the Mixcom hardware watchdog cards. This 2058 watchdog simply watches your kernel to make sure it doesn't freeze, 2059 and if it does, it reboots your computer after a certain amount of 2060 time. 2061 2062 To compile this driver as a module, choose M here: the 2063 module will be called mixcomwd. 2064 2065 Most people will say N. 2066 2067config WDT 2068 tristate "WDT Watchdog timer" 2069 depends on ISA 2070 ---help--- 2071 If you have a WDT500P or WDT501P watchdog board, say Y here, 2072 otherwise N. It is not possible to probe for this board, which means 2073 that you have to inform the kernel about the IO port and IRQ that 2074 is needed (you can do this via the io and irq parameters) 2075 2076 To compile this driver as a module, choose M here: the 2077 module will be called wdt. 2078 2079# 2080# PCI-based Watchdog Cards 2081# 2082 2083comment "PCI-based Watchdog Cards" 2084 depends on PCI 2085 2086config PCIPCWATCHDOG 2087 tristate "Berkshire Products PCI-PC Watchdog" 2088 depends on PCI 2089 ---help--- 2090 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2091 This card simply watches your kernel to make sure it doesn't freeze, 2092 and if it does, it reboots your computer after a certain amount of 2093 time. The card can also monitor the internal temperature of the PC. 2094 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2095 2096 To compile this driver as a module, choose M here: the 2097 module will be called pcwd_pci. 2098 2099 Most people will say N. 2100 2101config WDTPCI 2102 tristate "PCI-WDT500/501 Watchdog timer" 2103 depends on PCI 2104 ---help--- 2105 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2106 2107 If you have a PCI-WDT501 watchdog board then you can enable the 2108 temperature sensor by setting the type parameter to 501. 2109 2110 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2111 can do this via the tachometer parameter. Only do this if you have a 2112 fan tachometer actually set up. 2113 2114 To compile this driver as a module, choose M here: the 2115 module will be called wdt_pci. 2116 2117# 2118# USB-based Watchdog Cards 2119# 2120 2121comment "USB-based Watchdog Cards" 2122 depends on USB 2123 2124config USBPCWATCHDOG 2125 tristate "Berkshire Products USB-PC Watchdog" 2126 depends on USB 2127 ---help--- 2128 This is the driver for the Berkshire Products USB-PC Watchdog card. 2129 This card simply watches your kernel to make sure it doesn't freeze, 2130 and if it does, it reboots your computer after a certain amount of 2131 time. The card can also monitor the internal temperature of the PC. 2132 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2133 2134 To compile this driver as a module, choose M here: the 2135 module will be called pcwd_usb. 2136 2137 Most people will say N. 2138 2139endif # WATCHDOG 2140