1 # SPDX-License-Identifier: GPL-2.0-only 2 3 # 4 # Watchdog device configuration 5 # 6 7 menuconfig WATCHDOG 8 bool "Watchdog Timer Support" 9 help 10 If you say Y here (and to one of the following options) and create a 11 character special file /dev/watchdog with major number 10 and minor 12 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 13 subsequently opening the file and then failing to write to it for 14 longer than 1 minute will result in rebooting the machine. This 15 could be useful for a networked machine that needs to come back 16 on-line as fast as possible after a lock-up. There's both a watchdog 17 implementation entirely in software (which can sometimes fail to 18 reboot the machine) and a driver for hardware watchdog boards, which 19 are more robust and can also keep track of the temperature inside 20 your computer. For details, read 21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source. 22 23 The watchdog is usually used together with the watchdog daemon 24 which is available from 25 <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon 26 can also monitor NFS connections and can reboot the machine when the 27 process table is full. 28 29 If unsure, say N. 30 31 if WATCHDOG 32 33 config WATCHDOG_CORE 34 tristate "WatchDog Timer Driver Core" 35 help 36 Say Y here if you want to use the new watchdog timer driver core. 37 This driver provides a framework for all watchdog timer drivers 38 and gives them the /dev/watchdog interface (and later also the 39 sysfs interface). 40 41 config WATCHDOG_NOWAYOUT 42 bool "Disable watchdog shutdown on close" 43 help 44 The default watchdog behaviour (which you get if you say N here) is 45 to stop the timer if the process managing it closes the file 46 /dev/watchdog. It's always remotely possible that this process might 47 get killed. If you say Y here, the watchdog cannot be stopped once 48 it has been started. 49 50 config WATCHDOG_HANDLE_BOOT_ENABLED 51 bool "Update boot-enabled watchdog until userspace takes over" 52 default y 53 help 54 The default watchdog behaviour (which you get if you say Y here) is 55 to ping watchdog devices that were enabled before the driver has 56 been loaded until control is taken over from userspace using the 57 /dev/watchdog file. If you say N here, the kernel will not update 58 the watchdog on its own. Thus if your userspace does not start fast 59 enough your device will reboot. 60 61 config WATCHDOG_OPEN_TIMEOUT 62 int "Timeout value for opening watchdog device" 63 default 0 64 help 65 The maximum time, in seconds, for which the watchdog framework takes 66 care of pinging a hardware watchdog. A value of 0 means infinite. The 67 value set here can be overridden by the commandline parameter 68 "watchdog.open_timeout". 69 70 config WATCHDOG_SYSFS 71 bool "Read different watchdog information through sysfs" 72 help 73 Say Y here if you want to enable watchdog device status read through 74 sysfs attributes. 75 76 config WATCHDOG_HRTIMER_PRETIMEOUT 77 bool "Enable watchdog hrtimer-based pretimeouts" 78 help 79 Enable this if you want to use a hrtimer timer based pretimeout for 80 watchdogs that do not natively support pretimeout support. Be aware 81 that because this pretimeout functionality uses hrtimers, it may not 82 be able to fire before the actual watchdog fires in some situations. 83 84 comment "Watchdog Pretimeout Governors" 85 86 config WATCHDOG_PRETIMEOUT_GOV 87 bool "Enable watchdog pretimeout governors" 88 depends on WATCHDOG_CORE 89 help 90 The option allows to select watchdog pretimeout governors. 91 92 config WATCHDOG_PRETIMEOUT_GOV_SEL 93 tristate 94 depends on WATCHDOG_PRETIMEOUT_GOV 95 default m 96 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n 97 98 if WATCHDOG_PRETIMEOUT_GOV 99 100 config WATCHDOG_PRETIMEOUT_GOV_NOOP 101 tristate "Noop watchdog pretimeout governor" 102 depends on WATCHDOG_CORE 103 default WATCHDOG_CORE 104 help 105 Noop watchdog pretimeout governor, only an informational 106 message is added to kernel log buffer. 107 108 config WATCHDOG_PRETIMEOUT_GOV_PANIC 109 tristate "Panic watchdog pretimeout governor" 110 depends on WATCHDOG_CORE 111 default WATCHDOG_CORE 112 help 113 Panic watchdog pretimeout governor, on watchdog pretimeout 114 event put the kernel into panic. 115 116 choice 117 prompt "Default Watchdog Pretimeout Governor" 118 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 119 help 120 This option selects a default watchdog pretimeout governor. 121 The governor takes its action, if a watchdog is capable 122 to report a pretimeout event. 123 124 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 125 bool "noop" 126 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP 127 help 128 Use noop watchdog pretimeout governor by default. If noop 129 governor is selected by a user, write a short message to 130 the kernel log buffer and don't do any system changes. 131 132 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 133 bool "panic" 134 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC 135 help 136 Use panic watchdog pretimeout governor by default, if 137 a watchdog pretimeout event happens, consider that 138 a watchdog feeder is dead and reboot is unavoidable. 139 140 endchoice 141 142 endif # WATCHDOG_PRETIMEOUT_GOV 143 144 # 145 # General Watchdog drivers 146 # 147 148 comment "Watchdog Device Drivers" 149 150 # Architecture Independent 151 152 config SOFT_WATCHDOG 153 tristate "Software watchdog" 154 select WATCHDOG_CORE 155 help 156 A software monitoring watchdog. This will fail to reboot your system 157 from some situations that the hardware watchdog will recover 158 from. Equally it's a lot cheaper to install. 159 160 To compile this driver as a module, choose M here: the 161 module will be called softdog. 162 163 config SOFT_WATCHDOG_PRETIMEOUT 164 bool "Software watchdog pretimeout governor support" 165 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 166 help 167 Enable this if you want to use pretimeout governors with the software 168 watchdog. Be aware that governors might affect the watchdog because it 169 is purely software, e.g. the panic governor will stall it! 170 171 config BD957XMUF_WATCHDOG 172 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog" 173 depends on MFD_ROHM_BD957XMUF 174 select WATCHDOG_CORE 175 help 176 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs. 177 These PMIC ICs contain watchdog block which can be configured 178 to toggle reset line if SoC fails to ping watchdog via GPIO. 179 180 Say Y here to include support for the ROHM BD9576 or BD9573 181 watchdog. Alternatively say M to compile the driver as a module, 182 which will be called bd9576_wdt. 183 184 config DA9052_WATCHDOG 185 tristate "Dialog DA9052 Watchdog" 186 depends on PMIC_DA9052 || COMPILE_TEST 187 select WATCHDOG_CORE 188 help 189 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 190 cause system reset. 191 192 Say Y here to include support for the DA9052 watchdog. 193 Alternatively say M to compile the driver as a module, 194 which will be called da9052_wdt. 195 196 config DA9055_WATCHDOG 197 tristate "Dialog Semiconductor DA9055 Watchdog" 198 depends on MFD_DA9055 || COMPILE_TEST 199 select WATCHDOG_CORE 200 help 201 If you say yes here you get support for watchdog on the Dialog 202 Semiconductor DA9055 PMIC. 203 204 This driver can also be built as a module. If so, the module 205 will be called da9055_wdt. 206 207 config DA9063_WATCHDOG 208 tristate "Dialog DA9063 Watchdog" 209 depends on MFD_DA9063 || COMPILE_TEST 210 depends on I2C 211 select WATCHDOG_CORE 212 help 213 Support for the watchdog in the DA9063 PMIC. 214 215 This driver can be built as a module. The module name is da9063_wdt. 216 217 config DA9062_WATCHDOG 218 tristate "Dialog DA9062/61 Watchdog" 219 depends on MFD_DA9062 || COMPILE_TEST 220 depends on I2C 221 select WATCHDOG_CORE 222 help 223 Support for the watchdog in the DA9062 and DA9061 PMICs. 224 225 This driver can be built as a module. The module name is da9062_wdt. 226 227 config GPIO_WATCHDOG 228 tristate "Watchdog device controlled through GPIO-line" 229 depends on OF_GPIO 230 select WATCHDOG_CORE 231 help 232 If you say yes here you get support for watchdog device 233 controlled through GPIO-line. 234 235 config GPIO_WATCHDOG_ARCH_INITCALL 236 bool "Register the watchdog as early as possible" 237 depends on GPIO_WATCHDOG=y 238 help 239 In some situations, the default initcall level (module_init) 240 in not early enough in the boot process to avoid the watchdog 241 to be triggered. 242 If you say yes here, the initcall level would be raised to 243 arch_initcall. 244 If in doubt, say N. 245 246 config MENF21BMC_WATCHDOG 247 tristate "MEN 14F021P00 BMC Watchdog" 248 depends on MFD_MENF21BMC || COMPILE_TEST 249 depends on I2C 250 select WATCHDOG_CORE 251 help 252 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 253 254 This driver can also be built as a module. If so the module 255 will be called menf21bmc_wdt. 256 257 config MENZ069_WATCHDOG 258 tristate "MEN 16Z069 Watchdog" 259 depends on MCB 260 select WATCHDOG_CORE 261 help 262 Say Y here to include support for the MEN 16Z069 Watchdog. 263 264 This driver can also be built as a module. If so the module 265 will be called menz069_wdt. 266 267 config WDAT_WDT 268 tristate "ACPI Watchdog Action Table (WDAT)" 269 depends on ACPI 270 select WATCHDOG_CORE 271 select ACPI_WATCHDOG 272 help 273 This driver adds support for systems with ACPI Watchdog Action 274 Table (WDAT) table. Servers typically have this but it can be 275 found on some desktop machines as well. This driver will take 276 over the native iTCO watchdog driver found on many Intel CPUs. 277 278 To compile this driver as module, choose M here: the module will 279 be called wdat_wdt. 280 281 config WM831X_WATCHDOG 282 tristate "WM831x watchdog" 283 depends on MFD_WM831X 284 select WATCHDOG_CORE 285 help 286 Support for the watchdog in the WM831x AudioPlus PMICs. When 287 the watchdog triggers the system will be reset. 288 289 config WM8350_WATCHDOG 290 tristate "WM8350 watchdog" 291 depends on MFD_WM8350 292 select WATCHDOG_CORE 293 help 294 Support for the watchdog in the WM8350 AudioPlus PMIC. When 295 the watchdog triggers the system will be reset. 296 297 config XILINX_WATCHDOG 298 tristate "Xilinx Watchdog timer" 299 depends on HAS_IOMEM 300 select WATCHDOG_CORE 301 help 302 Watchdog driver for the xps_timebase_wdt IP core. 303 304 To compile this driver as a module, choose M here: the 305 module will be called of_xilinx_wdt. 306 307 config ZIIRAVE_WATCHDOG 308 tristate "Zodiac RAVE Watchdog Timer" 309 depends on I2C 310 select WATCHDOG_CORE 311 help 312 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 313 Processor. 314 315 To compile this driver as a module, choose M here: the 316 module will be called ziirave_wdt. 317 318 config RAVE_SP_WATCHDOG 319 tristate "RAVE SP Watchdog timer" 320 depends on RAVE_SP_CORE 321 depends on NVMEM || !NVMEM 322 select WATCHDOG_CORE 323 help 324 Support for the watchdog on RAVE SP device. 325 326 config MLX_WDT 327 tristate "Mellanox Watchdog" 328 depends on MELLANOX_PLATFORM 329 select WATCHDOG_CORE 330 select REGMAP 331 help 332 This is the driver for the hardware watchdog on Mellanox systems. 333 If you are going to use it, say Y here, otherwise N. 334 This driver can be used together with the watchdog daemon. 335 It can also watch your kernel to make sure it doesn't freeze, 336 and if it does, it reboots your system after a certain amount of 337 time. 338 339 To compile this driver as a module, choose M here: the 340 module will be called mlx-wdt. 341 342 config SL28CPLD_WATCHDOG 343 tristate "Kontron sl28cpld Watchdog" 344 depends on MFD_SL28CPLD || COMPILE_TEST 345 select WATCHDOG_CORE 346 help 347 Say Y here to include support for the watchdog timer 348 on the Kontron sl28 CPLD. 349 350 To compile this driver as a module, choose M here: the 351 module will be called sl28cpld_wdt. 352 353 # ALPHA Architecture 354 355 # ARM Architecture 356 357 config ARM_SP805_WATCHDOG 358 tristate "ARM SP805 Watchdog" 359 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 360 select WATCHDOG_CORE 361 help 362 ARM Primecell SP805 Watchdog timer. This will reboot your system when 363 the timeout is reached. 364 365 config ARM_SBSA_WATCHDOG 366 tristate "ARM SBSA Generic Watchdog" 367 depends on ARM64 368 depends on ARM_ARCH_TIMER 369 select WATCHDOG_CORE 370 help 371 ARM SBSA Generic Watchdog has two stage timeouts: 372 the first signal (WS0) is for alerting the system by interrupt, 373 the second one (WS1) is a real hardware reset. 374 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 375 376 This driver can operate ARM SBSA Generic Watchdog as a single stage 377 or a two stages watchdog, it depends on the module parameter "action". 378 379 Note: the maximum timeout in the two stages mode is half of that in 380 the single stage mode. 381 382 To compile this driver as module, choose M here: The module 383 will be called sbsa_gwdt. 384 385 config ARMADA_37XX_WATCHDOG 386 tristate "Armada 37xx watchdog" 387 depends on ARCH_MVEBU || COMPILE_TEST 388 depends on HAS_IOMEM 389 select MFD_SYSCON 390 select WATCHDOG_CORE 391 help 392 Say Y here to include support for the watchdog timer found on 393 Marvell Armada 37xx SoCs. 394 To compile this driver as a module, choose M here: the 395 module will be called armada_37xx_wdt. 396 397 config ASM9260_WATCHDOG 398 tristate "Alphascale ASM9260 watchdog" 399 depends on MACH_ASM9260 || COMPILE_TEST 400 depends on OF 401 select WATCHDOG_CORE 402 select RESET_CONTROLLER 403 help 404 Watchdog timer embedded into Alphascale asm9260 chips. This will 405 reboot your system when the timeout is reached. 406 407 config AT91RM9200_WATCHDOG 408 tristate "AT91RM9200 watchdog" 409 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 410 help 411 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 412 system when the timeout is reached. 413 414 config AT91SAM9X_WATCHDOG 415 tristate "AT91SAM9X / AT91CAP9 watchdog" 416 depends on ARCH_AT91 || COMPILE_TEST 417 select WATCHDOG_CORE 418 help 419 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 420 reboot your system when the timeout is reached. 421 422 config SAMA5D4_WATCHDOG 423 tristate "Atmel SAMA5D4 Watchdog Timer" 424 depends on ARCH_AT91 || COMPILE_TEST 425 select WATCHDOG_CORE 426 help 427 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 428 Its Watchdog Timer Mode Register can be written more than once. 429 This will reboot your system when the timeout is reached. 430 431 config CADENCE_WATCHDOG 432 tristate "Cadence Watchdog Timer" 433 depends on HAS_IOMEM 434 select WATCHDOG_CORE 435 help 436 Say Y here if you want to include support for the watchdog 437 timer in the Xilinx Zynq. 438 439 config 21285_WATCHDOG 440 tristate "DC21285 watchdog" 441 depends on FOOTBRIDGE 442 help 443 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 444 here if you wish to use this. Alternatively say M to compile the 445 driver as a module, which will be called wdt285. 446 447 This driver does not work on all machines. In particular, early CATS 448 boards have hardware problems that will cause the machine to simply 449 lock up if the watchdog fires. 450 451 "If in doubt, leave it out" - say N. 452 453 config 977_WATCHDOG 454 tristate "NetWinder WB83C977 watchdog" 455 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 456 help 457 Say Y here to include support for the WB977 watchdog included in 458 NetWinder machines. Alternatively say M to compile the driver as 459 a module, which will be called wdt977. 460 461 Not sure? It's safe to say N. 462 463 config FTWDT010_WATCHDOG 464 tristate "Faraday Technology FTWDT010 watchdog" 465 depends on ARM || COMPILE_TEST 466 select WATCHDOG_CORE 467 default ARCH_GEMINI 468 help 469 Say Y here if to include support for the Faraday Technology 470 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 471 family of devices. 472 473 To compile this driver as a module, choose M here: the 474 module will be called ftwdt010_wdt. 475 476 config IXP4XX_WATCHDOG 477 tristate "IXP4xx Watchdog" 478 depends on ARCH_IXP4XX 479 select WATCHDOG_CORE 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. 492 493 config S3C2410_WATCHDOG 494 tristate "S3C6410/S5Pv210/Exynos Watchdog" 495 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 496 select WATCHDOG_CORE 497 select MFD_SYSCON if ARCH_EXYNOS 498 help 499 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 500 SoCs. This will reboot the system when the timer expires with 501 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 Choose Y/M here only if you build for such Samsung SoC. 509 The driver can be built as a module by choosing M, and will 510 be called s3c2410_wdt. 511 512 config SA1100_WATCHDOG 513 tristate "SA1100/PXA2xx watchdog" 514 depends on ARCH_SA1100 || ARCH_PXA 515 help 516 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 517 reboot your system when timeout is reached. 518 519 NOTE: once enabled, this timer cannot be disabled. 520 521 To compile this driver as a module, choose M here: the 522 module will be called sa1100_wdt. 523 524 config DW_WATCHDOG 525 tristate "Synopsys DesignWare watchdog" 526 depends on HAS_IOMEM 527 select WATCHDOG_CORE 528 help 529 Say Y here if to include support for the Synopsys DesignWare 530 watchdog timer found in many chips. 531 To compile this driver as a module, choose M here: the 532 module will be called dw_wdt. 533 534 config EP93XX_WATCHDOG 535 tristate "EP93xx Watchdog" 536 depends on ARCH_EP93XX || COMPILE_TEST 537 select WATCHDOG_CORE 538 help 539 Say Y here if to include support for the watchdog timer 540 embedded in the Cirrus Logic EP93xx family of devices. 541 542 To compile this driver as a module, choose M here: the 543 module will be called ep93xx_wdt. 544 545 config OMAP_WATCHDOG 546 tristate "OMAP Watchdog" 547 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 548 select WATCHDOG_CORE 549 help 550 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 551 Say 'Y' here to enable the 552 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 553 554 config PNX4008_WATCHDOG 555 tristate "LPC32XX Watchdog" 556 depends on ARCH_LPC32XX || COMPILE_TEST 557 select WATCHDOG_CORE 558 help 559 Say Y here if to include support for the watchdog timer 560 in the LPC32XX processor. 561 This driver can be built as a module by choosing M. The module 562 will be called pnx4008_wdt. 563 564 Say N if you are unsure. 565 566 config DAVINCI_WATCHDOG 567 tristate "DaVinci watchdog" 568 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 569 select WATCHDOG_CORE 570 help 571 Say Y here if to include support for the watchdog timer 572 in the DaVinci DM644x/DM646x or Keystone processors. 573 To compile this driver as a module, choose M here: the 574 module will be called davinci_wdt. 575 576 NOTE: once enabled, this timer cannot be disabled. 577 Say N if you are unsure. 578 579 config K3_RTI_WATCHDOG 580 tristate "Texas Instruments K3 RTI watchdog" 581 depends on ARCH_K3 || COMPILE_TEST 582 select WATCHDOG_CORE 583 help 584 Say Y here if you want to include support for the K3 watchdog 585 timer (RTI module) available in the K3 generation of processors. 586 587 config ORION_WATCHDOG 588 tristate "Orion watchdog" 589 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 590 depends on ARM 591 select WATCHDOG_CORE 592 help 593 Say Y here if to include support for the watchdog timer 594 in the Marvell Orion5x and Kirkwood ARM SoCs. 595 To compile this driver as a module, choose M here: the 596 module will be called orion_wdt. 597 598 config RN5T618_WATCHDOG 599 tristate "Ricoh RN5T618 watchdog" 600 depends on MFD_RN5T618 || COMPILE_TEST 601 select WATCHDOG_CORE 602 help 603 If you say yes here you get support for watchdog on the Ricoh 604 RN5T618 PMIC. 605 606 This driver can also be built as a module. If so, the module 607 will be called rn5t618_wdt. 608 609 config SUNXI_WATCHDOG 610 tristate "Allwinner SoCs watchdog support" 611 depends on ARCH_SUNXI || COMPILE_TEST 612 select WATCHDOG_CORE 613 help 614 Say Y here to include support for the watchdog timer 615 in Allwinner SoCs. 616 To compile this driver as a module, choose M here: the 617 module will be called sunxi_wdt. 618 619 config NPCM7XX_WATCHDOG 620 tristate "Nuvoton NPCM750 watchdog" 621 depends on ARCH_NPCM || COMPILE_TEST 622 default y if ARCH_NPCM7XX 623 select WATCHDOG_CORE 624 help 625 Say Y here to include Watchdog timer support for the 626 watchdog embedded into the NPCM7xx. 627 This watchdog is used to reset the system and thus cannot be 628 compiled as a module. 629 630 config TWL4030_WATCHDOG 631 tristate "TWL4030 Watchdog" 632 depends on TWL4030_CORE 633 select WATCHDOG_CORE 634 help 635 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 636 watchdog timer support for TWL4030 chips. 637 638 config STMP3XXX_RTC_WATCHDOG 639 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 640 depends on RTC_DRV_STMP || COMPILE_TEST 641 select WATCHDOG_CORE 642 help 643 Say Y here to include support for the watchdog timer inside 644 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 645 To compile this driver as a module, choose M here: the 646 module will be called stmp3xxx_rtc_wdt. 647 648 config TS4800_WATCHDOG 649 tristate "TS-4800 Watchdog" 650 depends on HAS_IOMEM && OF 651 depends on SOC_IMX51 || COMPILE_TEST 652 select WATCHDOG_CORE 653 select MFD_SYSCON 654 help 655 Technologic Systems TS-4800 has watchdog timer implemented in 656 an external FPGA. Say Y here if you want to support for the 657 watchdog timer on TS-4800 board. 658 659 config TS72XX_WATCHDOG 660 tristate "TS-72XX SBC Watchdog" 661 depends on MACH_TS72XX || COMPILE_TEST 662 select WATCHDOG_CORE 663 help 664 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 665 watchdog timer implemented in a external CPLD chip. Say Y here 666 if you want to support for the watchdog timer on TS-72XX boards. 667 668 To compile this driver as a module, choose M here: the 669 module will be called ts72xx_wdt. 670 671 config MAX63XX_WATCHDOG 672 tristate "Max63xx watchdog" 673 depends on HAS_IOMEM 674 select WATCHDOG_CORE 675 help 676 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 677 678 config MAX77620_WATCHDOG 679 tristate "Maxim Max77620 Watchdog Timer" 680 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 681 select WATCHDOG_CORE 682 help 683 This is the driver for the Max77620 watchdog timer. 684 Say 'Y' here to enable the watchdog timer support for 685 MAX77620 chips. To compile this driver as a module, 686 choose M here: the module will be called max77620_wdt. 687 688 config IMX2_WDT 689 tristate "IMX2+ Watchdog" 690 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 691 select REGMAP_MMIO 692 select WATCHDOG_CORE 693 help 694 This is the driver for the hardware watchdog 695 on the Freescale IMX2 and later processors. 696 If you have one of these processors and wish to have 697 watchdog support enabled, say Y, otherwise say N. 698 699 To compile this driver as a module, choose M here: the 700 module will be called imx2_wdt. 701 702 config IMX_SC_WDT 703 tristate "IMX SC Watchdog" 704 depends on HAVE_ARM_SMCCC 705 depends on IMX_SCU 706 select WATCHDOG_CORE 707 help 708 This is the driver for the system controller watchdog 709 on the NXP i.MX SoCs with system controller inside, the 710 watchdog driver will call ARM SMC API and trap into 711 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 712 will request system controller to execute the operations. 713 If you have one of these processors and wish to have 714 watchdog support enabled, say Y, otherwise say N. 715 716 To compile this driver as a module, choose M here: the 717 module will be called imx_sc_wdt. 718 719 config IMX7ULP_WDT 720 tristate "IMX7ULP Watchdog" 721 depends on ARCH_MXC || COMPILE_TEST 722 select WATCHDOG_CORE 723 help 724 This is the driver for the hardware watchdog on the Freescale 725 IMX7ULP and later processors. If you have one of these 726 processors and wish to have watchdog support enabled, 727 say Y, otherwise say N. 728 729 To compile this driver as a module, choose M here: the 730 module will be called imx7ulp_wdt. 731 732 config DB500_WATCHDOG 733 tristate "ST-Ericsson DB800 watchdog" 734 depends on MFD_DB8500_PRCMU 735 select WATCHDOG_CORE 736 default y 737 help 738 Say Y here to include Watchdog timer support for the watchdog 739 existing in the prcmu of ST-Ericsson DB8500 platform. 740 741 To compile this driver as a module, choose M here: the 742 module will be called db500_wdt. 743 744 config RETU_WATCHDOG 745 tristate "Retu watchdog" 746 depends on MFD_RETU 747 select WATCHDOG_CORE 748 help 749 Retu watchdog driver for Nokia Internet Tablets (770, N800, 750 N810). At least on N800 the watchdog cannot be disabled, so 751 this driver is essential and you should enable it. 752 753 To compile this driver as a module, choose M here: the 754 module will be called retu_wdt. 755 756 config MOXART_WDT 757 tristate "MOXART watchdog" 758 depends on ARCH_MOXART || COMPILE_TEST 759 help 760 Say Y here to include Watchdog timer support for the watchdog 761 existing on the MOXA ART SoC series platforms. 762 763 To compile this driver as a module, choose M here: the 764 module will be called moxart_wdt. 765 766 config ST_LPC_WATCHDOG 767 tristate "STMicroelectronics LPC Watchdog" 768 depends on ARCH_STI || COMPILE_TEST 769 depends on OF 770 select WATCHDOG_CORE 771 help 772 Say Y here to include STMicroelectronics Low Power Controller 773 (LPC) based Watchdog timer support. 774 775 To compile this driver as a module, choose M here: the 776 module will be called st_lpc_wdt. 777 778 config TEGRA_WATCHDOG 779 tristate "Tegra watchdog" 780 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 781 select WATCHDOG_CORE 782 help 783 Say Y here to include support for the watchdog timer 784 embedded in NVIDIA Tegra SoCs. 785 786 To compile this driver as a module, choose M here: the 787 module will be called tegra_wdt. 788 789 config QCOM_WDT 790 tristate "QCOM watchdog" 791 depends on HAS_IOMEM 792 depends on ARCH_QCOM || COMPILE_TEST 793 select WATCHDOG_CORE 794 help 795 Say Y here to include Watchdog timer support for the watchdog found 796 on QCOM chipsets. Currently supported targets are the MSM8960, 797 APQ8064, and IPQ8064. 798 799 To compile this driver as a module, choose M here: the 800 module will be called qcom_wdt. 801 802 config MESON_GXBB_WATCHDOG 803 tristate "Amlogic Meson GXBB SoCs watchdog support" 804 depends on ARCH_MESON || COMPILE_TEST 805 select WATCHDOG_CORE 806 help 807 Say Y here to include support for the watchdog timer 808 in Amlogic Meson GXBB SoCs. 809 To compile this driver as a module, choose M here: the 810 module will be called meson_gxbb_wdt. 811 812 config MESON_WATCHDOG 813 tristate "Amlogic Meson SoCs watchdog support" 814 depends on ARCH_MESON || COMPILE_TEST 815 select WATCHDOG_CORE 816 help 817 Say Y here to include support for the watchdog timer 818 in Amlogic Meson SoCs. 819 To compile this driver as a module, choose M here: the 820 module will be called meson_wdt. 821 822 config MEDIATEK_WATCHDOG 823 tristate "Mediatek SoCs watchdog support" 824 depends on ARCH_MEDIATEK || COMPILE_TEST 825 default ARCH_MEDIATEK 826 select WATCHDOG_CORE 827 select RESET_CONTROLLER 828 help 829 Say Y here to include support for the watchdog timer 830 in Mediatek SoCs. 831 To compile this driver as a module, choose M here: the 832 module will be called mtk_wdt. 833 834 config DIGICOLOR_WATCHDOG 835 tristate "Conexant Digicolor SoCs watchdog support" 836 depends on ARCH_DIGICOLOR || COMPILE_TEST 837 select WATCHDOG_CORE 838 help 839 Say Y here to include support for the watchdog timer 840 in Conexant Digicolor SoCs. 841 To compile this driver as a module, choose M here: the 842 module will be called digicolor_wdt. 843 844 config ARM_SMC_WATCHDOG 845 tristate "ARM Secure Monitor Call based watchdog support" 846 depends on ARM || ARM64 847 depends on OF 848 depends on HAVE_ARM_SMCCC 849 select WATCHDOG_CORE 850 help 851 Say Y here to include support for a watchdog timer 852 implemented by the EL3 Secure Monitor on ARM platforms. 853 Requires firmware support. 854 To compile this driver as a module, choose M here: the 855 module will be called arm_smc_wdt. 856 857 config LPC18XX_WATCHDOG 858 tristate "LPC18xx/43xx Watchdog" 859 depends on ARCH_LPC18XX || COMPILE_TEST 860 depends on HAS_IOMEM 861 select WATCHDOG_CORE 862 help 863 Say Y here if to include support for the watchdog timer 864 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 865 processors. 866 To compile this driver as a module, choose M here: the 867 module will be called lpc18xx_wdt. 868 869 config RENESAS_WDT 870 tristate "Renesas WDT Watchdog" 871 depends on ARCH_RENESAS || COMPILE_TEST 872 select WATCHDOG_CORE 873 help 874 This driver adds watchdog support for the integrated watchdogs in the 875 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 876 877 config RENESAS_RZAWDT 878 tristate "Renesas RZ/A WDT Watchdog" 879 depends on ARCH_RENESAS || COMPILE_TEST 880 select WATCHDOG_CORE 881 help 882 This driver adds watchdog support for the integrated watchdogs in the 883 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 884 885 config RENESAS_RZN1WDT 886 tristate "Renesas RZ/N1 watchdog" 887 depends on ARCH_RENESAS || COMPILE_TEST 888 select WATCHDOG_CORE 889 help 890 This driver adds watchdog support for the integrated watchdogs in the 891 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 892 893 config RENESAS_RZG2LWDT 894 tristate "Renesas RZ/G2L WDT Watchdog" 895 depends on ARCH_RENESAS || COMPILE_TEST 896 select WATCHDOG_CORE 897 help 898 This driver adds watchdog support for the integrated watchdogs in the 899 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 900 901 config ASPEED_WATCHDOG 902 tristate "Aspeed BMC watchdog support" 903 depends on ARCH_ASPEED || COMPILE_TEST 904 select WATCHDOG_CORE 905 help 906 Say Y here to include support for the watchdog timer 907 in Aspeed BMC SoCs. 908 909 This driver is required to reboot the SoC. 910 911 To compile this driver as a module, choose M here: the 912 module will be called aspeed_wdt. 913 914 config STM32_WATCHDOG 915 tristate "STM32 Independent WatchDoG (IWDG) support" 916 depends on ARCH_STM32 917 select WATCHDOG_CORE 918 default y 919 help 920 Say Y here to include support for the watchdog timer 921 in stm32 SoCs. 922 923 To compile this driver as a module, choose M here: the 924 module will be called stm32_iwdg. 925 926 config STPMIC1_WATCHDOG 927 tristate "STPMIC1 PMIC watchdog support" 928 depends on MFD_STPMIC1 929 select WATCHDOG_CORE 930 help 931 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 932 If the watchdog timer expires, stpmic1 will shut down all its power 933 supplies. 934 935 To compile this driver as a module, choose M here: the 936 module will be called spmic1_wdt. 937 938 config UNIPHIER_WATCHDOG 939 tristate "UniPhier watchdog support" 940 depends on ARCH_UNIPHIER || COMPILE_TEST 941 depends on OF && MFD_SYSCON 942 select WATCHDOG_CORE 943 help 944 Say Y here to include support watchdog timer embedded 945 into the UniPhier system. 946 947 To compile this driver as a module, choose M here: the 948 module will be called uniphier_wdt. 949 950 config RTD119X_WATCHDOG 951 bool "Realtek RTD119x/RTD129x watchdog support" 952 depends on ARCH_REALTEK || COMPILE_TEST 953 depends on OF 954 select WATCHDOG_CORE 955 default ARCH_REALTEK 956 help 957 Say Y here to include support for the watchdog timer in 958 Realtek RTD1295 SoCs. 959 960 config REALTEK_OTTO_WDT 961 tristate "Realtek Otto MIPS watchdog support" 962 depends on MACH_REALTEK_RTL || COMPILE_TEST 963 depends on COMMON_CLK 964 select WATCHDOG_CORE 965 default MACH_REALTEK_RTL 966 help 967 Say Y here to include support for the watchdog timer on Realtek 968 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 969 notifications and system reset on timeout. 970 971 When built as a module this will be called realtek_otto_wdt. 972 973 config SPRD_WATCHDOG 974 tristate "Spreadtrum watchdog support" 975 depends on ARCH_SPRD || COMPILE_TEST 976 select WATCHDOG_CORE 977 help 978 Say Y here to include watchdog timer supported 979 by Spreadtrum system. 980 981 config PM8916_WATCHDOG 982 tristate "QCOM PM8916 pmic watchdog" 983 depends on OF && MFD_SPMI_PMIC 984 select WATCHDOG_CORE 985 help 986 Say Y here to include support watchdog timer embedded into the 987 pm8916 module. 988 989 config VISCONTI_WATCHDOG 990 tristate "Toshiba Visconti series watchdog support" 991 depends on ARCH_VISCONTI || COMPILE_TEST 992 select WATCHDOG_CORE 993 help 994 Say Y here to include support for the watchdog timer in Toshiba 995 Visconti SoCs. 996 997 config MSC313E_WATCHDOG 998 tristate "MStar MSC313e watchdog" 999 depends on ARCH_MSTARV7 || COMPILE_TEST 1000 select WATCHDOG_CORE 1001 help 1002 Say Y here to include support for the Watchdog timer embedded 1003 into MStar MSC313e chips. This will reboot your system when the 1004 timeout is reached. 1005 1006 To compile this driver as a module, choose M here: the 1007 module will be called msc313e_wdt. 1008 1009 config APPLE_WATCHDOG 1010 tristate "Apple SoC watchdog" 1011 depends on ARCH_APPLE || COMPILE_TEST 1012 select WATCHDOG_CORE 1013 help 1014 Say Y here to include support for the Watchdog found in Apple 1015 SoCs such as the M1. Next to the common watchdog features this 1016 driver is also required in order to reboot these SoCs. 1017 1018 To compile this driver as a module, choose M here: the 1019 module will be called apple_wdt. 1020 1021 config SUNPLUS_WATCHDOG 1022 tristate "Sunplus watchdog support" 1023 depends on ARCH_SUNPLUS || COMPILE_TEST 1024 select WATCHDOG_CORE 1025 help 1026 Say Y here to include support for the watchdog timer 1027 in Sunplus SoCs. 1028 1029 To compile this driver as a module, choose M here: the 1030 module will be called sunplus_wdt. 1031 1032 # X86 (i386 + ia64 + x86_64) Architecture 1033 1034 config ACQUIRE_WDT 1035 tristate "Acquire SBC Watchdog Timer" 1036 depends on X86 1037 help 1038 This is the driver for the hardware watchdog on Single Board 1039 Computers produced by Acquire Inc (and others). This watchdog 1040 simply watches your kernel to make sure it doesn't freeze, and if 1041 it does, it reboots your computer after a certain amount of time. 1042 1043 To compile this driver as a module, choose M here: the 1044 module will be called acquirewdt. 1045 1046 Most people will say N. 1047 1048 config ADVANTECH_WDT 1049 tristate "Advantech SBC Watchdog Timer" 1050 depends on X86 1051 help 1052 If you are configuring a Linux kernel for the Advantech single-board 1053 computer, say `Y' here to support its built-in watchdog timer 1054 feature. More information can be found at 1055 <https://www.advantech.com.tw/products/> 1056 1057 config ADVANTECH_EC_WDT 1058 tristate "Advantech Embedded Controller Watchdog Timer" 1059 depends on X86 1060 help 1061 This driver supports Advantech products with ITE based Embedded Controller. 1062 It does not support Advantech products with other ECs or without EC. 1063 1064 config ALIM1535_WDT 1065 tristate "ALi M1535 PMU Watchdog Timer" 1066 depends on X86 && PCI 1067 help 1068 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1069 1070 To compile this driver as a module, choose M here: the 1071 module will be called alim1535_wdt. 1072 1073 Most people will say N. 1074 1075 config ALIM7101_WDT 1076 tristate "ALi M7101 PMU Computer Watchdog" 1077 depends on PCI 1078 help 1079 This is the driver for the hardware watchdog on the ALi M7101 PMU 1080 as used in the x86 Cobalt servers and also found in some 1081 SPARC Netra servers too. 1082 1083 To compile this driver as a module, choose M here: the 1084 module will be called alim7101_wdt. 1085 1086 Most people will say N. 1087 1088 config EBC_C384_WDT 1089 tristate "WinSystems EBC-C384 Watchdog Timer" 1090 depends on X86 1091 select ISA_BUS_API 1092 select WATCHDOG_CORE 1093 help 1094 Enables watchdog timer support for the watchdog timer on the 1095 WinSystems EBC-C384 motherboard. The timeout may be configured via 1096 the timeout module parameter. 1097 1098 config EXAR_WDT 1099 tristate "Exar Watchdog Timer" 1100 depends on X86 1101 select WATCHDOG_CORE 1102 help 1103 Enables watchdog timer support for the watchdog timer present 1104 in some Exar/MaxLinear UART chips like the XR28V38x. 1105 1106 To compile this driver as a module, choose M here: the 1107 module will be called exar_wdt. 1108 1109 config F71808E_WDT 1110 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1111 depends on X86 1112 select WATCHDOG_CORE 1113 help 1114 This is the driver for the hardware watchdog on the Fintek F71808E, 1115 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1116 F81866 Super I/O controllers. 1117 1118 You can compile this driver directly into the kernel, or use 1119 it as a module. The module will be called f71808e_wdt. 1120 1121 config SP5100_TCO 1122 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1123 depends on X86 && PCI 1124 select WATCHDOG_CORE 1125 help 1126 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1127 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1128 the machine after its expiration. The expiration time can be 1129 configured with the "heartbeat" parameter. 1130 1131 To compile this driver as a module, choose M here: the 1132 module will be called sp5100_tco. 1133 1134 config GEODE_WDT 1135 tristate "AMD Geode CS5535/CS5536 Watchdog" 1136 depends on CS5535_MFGPT 1137 help 1138 This driver enables a watchdog capability built into the 1139 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1140 processors. This watchdog watches your kernel to make sure 1141 it doesn't freeze, and if it does, it reboots your computer after 1142 a certain amount of time. 1143 1144 You can compile this driver directly into the kernel, or use 1145 it as a module. The module will be called geodewdt. 1146 1147 config SC520_WDT 1148 tristate "AMD Elan SC520 processor Watchdog" 1149 depends on MELAN || COMPILE_TEST 1150 help 1151 This is the driver for the hardware watchdog built in to the 1152 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1153 This watchdog simply watches your kernel to make sure it doesn't 1154 freeze, and if it does, it reboots your computer after a certain 1155 amount of time. 1156 1157 You can compile this driver directly into the kernel, or use 1158 it as a module. The module will be called sc520_wdt. 1159 1160 config SBC_FITPC2_WATCHDOG 1161 tristate "Compulab SBC-FITPC2 watchdog" 1162 depends on X86 1163 help 1164 This is the driver for the built-in watchdog timer on the fit-PC2, 1165 fit-PC2i, CM-iAM single-board computers made by Compulab. 1166 1167 It's possible to enable the watchdog timer either from BIOS (F2) or 1168 from booted Linux. 1169 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1170 operational range. 1171 1172 Entering BIOS setup temporarily disables watchdog operation regardless 1173 of current state, so system will not be restarted while user is in 1174 BIOS setup. 1175 1176 Once the watchdog is enabled the system will be restarted every 1177 "Watchdog Timer Value" period, so to prevent it user can restart or 1178 disable the watchdog. 1179 1180 To compile this driver as a module, choose M here: the 1181 module will be called sbc_fitpc2_wdt. 1182 1183 Most people will say N. 1184 1185 config EUROTECH_WDT 1186 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1187 depends on X86 1188 help 1189 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1190 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1191 information are at <http://www.eurotech.it/>. 1192 1193 config IB700_WDT 1194 tristate "IB700 SBC Watchdog Timer" 1195 depends on X86 1196 help 1197 This is the driver for the hardware watchdog on the IB700 Single 1198 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1199 watchdog simply watches your kernel to make sure it doesn't freeze, 1200 and if it does, it reboots your computer after a certain amount of time. 1201 1202 This driver is like the WDT501 driver but for slightly different 1203 hardware. 1204 1205 To compile this driver as a module, choose M here: the 1206 module will be called ib700wdt. 1207 1208 Most people will say N. 1209 1210 config IBMASR 1211 tristate "IBM Automatic Server Restart" 1212 depends on X86 1213 help 1214 This is the driver for the IBM Automatic Server Restart watchdog 1215 timer built-in into some eServer xSeries machines. 1216 1217 To compile this driver as a module, choose M here: the 1218 module will be called ibmasr. 1219 1220 config WAFER_WDT 1221 tristate "ICP Single Board Computer Watchdog Timer" 1222 depends on X86 1223 help 1224 This is a driver for the hardware watchdog on the ICP Single 1225 Board Computer. This driver is working on (at least) the following 1226 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1227 1228 To compile this driver as a module, choose M here: the 1229 module will be called wafer5823wdt. 1230 1231 config I6300ESB_WDT 1232 tristate "Intel 6300ESB Timer/Watchdog" 1233 depends on PCI 1234 select WATCHDOG_CORE 1235 help 1236 Hardware driver for the watchdog timer built into the Intel 1237 6300ESB controller hub. 1238 1239 To compile this driver as a module, choose M here: the 1240 module will be called i6300esb. 1241 1242 config IE6XX_WDT 1243 tristate "Intel Atom E6xx Watchdog" 1244 depends on X86 && PCI 1245 select WATCHDOG_CORE 1246 select MFD_CORE 1247 select LPC_SCH 1248 help 1249 Hardware driver for the watchdog timer built into the Intel 1250 Atom E6XX (TunnelCreek) processor. 1251 1252 To compile this driver as a module, choose M here: the 1253 module will be called ie6xx_wdt. 1254 1255 config INTEL_MID_WATCHDOG 1256 tristate "Intel MID Watchdog Timer" 1257 depends on X86_INTEL_MID 1258 select WATCHDOG_CORE 1259 help 1260 Watchdog timer driver built into the Intel SCU for Intel MID 1261 Platforms. 1262 1263 This driver currently supports only the watchdog evolution 1264 implementation in SCU, available for Merrifield generation. 1265 1266 To compile this driver as a module, choose M here. 1267 1268 config ITCO_WDT 1269 tristate "Intel TCO Timer/Watchdog" 1270 depends on (X86 || IA64) && PCI 1271 select WATCHDOG_CORE 1272 depends on I2C || I2C=n 1273 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1274 select LPC_ICH if !EXPERT 1275 select I2C_I801 if !EXPERT && I2C 1276 help 1277 Hardware driver for the intel TCO timer based watchdog devices. 1278 These drivers are included in the Intel 82801 I/O Controller 1279 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1280 controller hub. 1281 1282 The TCO (Total Cost of Ownership) timer is a watchdog timer 1283 that will reboot the machine after its second expiration. The 1284 expiration time can be configured with the "heartbeat" parameter. 1285 1286 On some motherboards the driver may fail to reset the chipset's 1287 NO_REBOOT flag which prevents the watchdog from rebooting the 1288 machine. If this is the case you will get a kernel message like 1289 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1290 1291 To compile this driver as a module, choose M here: the 1292 module will be called iTCO_wdt. 1293 1294 config ITCO_VENDOR_SUPPORT 1295 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1296 depends on ITCO_WDT 1297 help 1298 Add vendor specific support to the intel TCO timer based watchdog 1299 devices. At this moment we only have additional support for some 1300 SuperMicro Inc. motherboards. 1301 1302 config IT8712F_WDT 1303 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1304 depends on X86 1305 help 1306 This is the driver for the built-in watchdog timer on the IT8712F 1307 Super I/0 chipset used on many motherboards. 1308 1309 If the driver does not work, then make sure that the game port in 1310 the BIOS is enabled. 1311 1312 To compile this driver as a module, choose M here: the 1313 module will be called it8712f_wdt. 1314 1315 config IT87_WDT 1316 tristate "IT87 Watchdog Timer" 1317 depends on X86 1318 select WATCHDOG_CORE 1319 help 1320 This is the driver for the hardware watchdog on the ITE IT8607, 1321 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1322 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1323 IT8783 Super I/O chips. 1324 1325 This watchdog simply watches your kernel to make sure it doesn't 1326 freeze, and if it does, it reboots your computer after a certain 1327 amount of time. 1328 1329 To compile this driver as a module, choose M here: the module will 1330 be called it87_wdt. 1331 1332 config HP_WATCHDOG 1333 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1334 select WATCHDOG_CORE 1335 depends on (ARM64 || X86) && PCI 1336 help 1337 A software monitoring watchdog and NMI handling driver. This driver 1338 will detect lockups and provide a stack trace. This is a driver that 1339 will only load on an HP ProLiant system with a minimum of iLO2 support. 1340 To compile this driver as a module, choose M here: the module will be 1341 called hpwdt. 1342 1343 config HPWDT_NMI_DECODING 1344 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1345 depends on X86 && HP_WATCHDOG 1346 default y 1347 help 1348 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1349 "Generate NMI to System" virtual button. When an NMI is claimed 1350 by the driver, panic is called. 1351 1352 config KEMPLD_WDT 1353 tristate "Kontron COM Watchdog Timer" 1354 depends on MFD_KEMPLD 1355 select WATCHDOG_CORE 1356 help 1357 Support for the PLD watchdog on some Kontron ETX and COMexpress 1358 (ETXexpress) modules 1359 1360 This driver can also be built as a module. If so, the module will be 1361 called kempld_wdt. 1362 1363 config SC1200_WDT 1364 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1365 depends on X86 1366 help 1367 This is a driver for National Semiconductor PC87307/PC97307 hardware 1368 watchdog cards as found on the SC1200. This watchdog is mainly used 1369 for power management purposes and can be used to power down the device 1370 during inactivity periods (includes interrupt activity monitoring). 1371 1372 To compile this driver as a module, choose M here: the 1373 module will be called sc1200wdt. 1374 1375 Most people will say N. 1376 1377 config SCx200_WDT 1378 tristate "National Semiconductor SCx200 Watchdog" 1379 depends on SCx200 && PCI 1380 help 1381 Enable the built-in watchdog timer support on the National 1382 Semiconductor SCx200 processors. 1383 1384 If compiled as a module, it will be called scx200_wdt. 1385 1386 config PC87413_WDT 1387 tristate "NS PC87413 watchdog" 1388 depends on X86 1389 help 1390 This is the driver for the hardware watchdog on the PC87413 chipset 1391 This watchdog simply watches your kernel to make sure it doesn't 1392 freeze, and if it does, it reboots your computer after a certain 1393 amount of time. 1394 1395 To compile this driver as a module, choose M here: the 1396 module will be called pc87413_wdt. 1397 1398 Most people will say N. 1399 1400 config NV_TCO 1401 tristate "nVidia TCO Timer/Watchdog" 1402 depends on X86 && PCI 1403 help 1404 Hardware driver for the TCO timer built into the nVidia Hub family 1405 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1406 watchdog timer that will reboot the machine after its second 1407 expiration. The expiration time can be configured with the 1408 "heartbeat" parameter. 1409 1410 On some motherboards the driver may fail to reset the chipset's 1411 NO_REBOOT flag which prevents the watchdog from rebooting the 1412 machine. If this is the case you will get a kernel message like 1413 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1414 1415 To compile this driver as a module, choose M here: the 1416 module will be called nv_tco. 1417 1418 config RDC321X_WDT 1419 tristate "RDC R-321x SoC watchdog" 1420 depends on X86_RDC321X || COMPILE_TEST 1421 depends on PCI 1422 help 1423 This is the driver for the built in hardware watchdog 1424 in the RDC R-321x SoC. 1425 1426 To compile this driver as a module, choose M here: the 1427 module will be called rdc321x_wdt. 1428 1429 config 60XX_WDT 1430 tristate "SBC-60XX Watchdog Timer" 1431 depends on X86 1432 help 1433 This driver can be used with the watchdog timer found on some 1434 single board computers, namely the 6010 PII based computer. 1435 It may well work with other cards. It reads port 0x443 to enable 1436 and re-set the watchdog timer, and reads port 0x45 to disable 1437 the watchdog. If you have a card that behave in similar ways, 1438 you can probably make this driver work with your card as well. 1439 1440 You can compile this driver directly into the kernel, or use 1441 it as a module. The module will be called sbc60xxwdt. 1442 1443 config SBC8360_WDT 1444 tristate "SBC8360 Watchdog Timer" 1445 depends on X86_32 1446 help 1447 1448 This is the driver for the hardware watchdog on the SBC8360 Single 1449 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1450 1451 To compile this driver as a module, choose M here: the 1452 module will be called sbc8360. 1453 1454 Most people will say N. 1455 1456 config SBC7240_WDT 1457 tristate "SBC Nano 7240 Watchdog Timer" 1458 depends on X86_32 && !UML 1459 help 1460 This is the driver for the hardware watchdog found on the IEI 1461 single board computers EPIC Nano 7240 (and likely others). This 1462 watchdog simply watches your kernel to make sure it doesn't freeze, 1463 and if it does, it reboots your computer after a certain amount of 1464 time. 1465 1466 To compile this driver as a module, choose M here: the 1467 module will be called sbc7240_wdt. 1468 1469 config CPU5_WDT 1470 tristate "SMA CPU5 Watchdog" 1471 depends on X86 1472 help 1473 TBD. 1474 To compile this driver as a module, choose M here: the 1475 module will be called cpu5wdt. 1476 1477 config SMSC_SCH311X_WDT 1478 tristate "SMSC SCH311X Watchdog Timer" 1479 depends on X86 1480 help 1481 This is the driver for the hardware watchdog timer on the 1482 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1483 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1484 serial ports). 1485 1486 To compile this driver as a module, choose M here: the 1487 module will be called sch311x_wdt. 1488 1489 config SMSC37B787_WDT 1490 tristate "Winbond SMsC37B787 Watchdog Timer" 1491 depends on X86 1492 help 1493 This is the driver for the hardware watchdog component on the 1494 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1495 from Vision Systems and maybe others. 1496 1497 This watchdog simply watches your kernel to make sure it doesn't 1498 freeze, and if it does, it reboots your computer after a certain 1499 amount of time. 1500 1501 Usually a userspace daemon will notify the kernel WDT driver that 1502 userspace is still alive, at regular intervals. 1503 1504 To compile this driver as a module, choose M here: the 1505 module will be called smsc37b787_wdt. 1506 1507 Most people will say N. 1508 1509 config TQMX86_WDT 1510 tristate "TQ-Systems TQMX86 Watchdog Timer" 1511 depends on X86 1512 select WATCHDOG_CORE 1513 help 1514 This is the driver for the hardware watchdog timer in the TQMX86 IO 1515 controller found on some of their ComExpress Modules. 1516 1517 To compile this driver as a module, choose M here; the module 1518 will be called tqmx86_wdt. 1519 1520 Most people will say N. 1521 1522 config VIA_WDT 1523 tristate "VIA Watchdog Timer" 1524 depends on X86 && PCI 1525 select WATCHDOG_CORE 1526 help 1527 This is the driver for the hardware watchdog timer on VIA 1528 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1529 1530 To compile this driver as a module, choose M here; the module 1531 will be called via_wdt. 1532 1533 Most people will say N. 1534 1535 config W83627HF_WDT 1536 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1537 depends on X86 1538 select WATCHDOG_CORE 1539 help 1540 This is the driver for the hardware watchdog on the following 1541 Super I/O chips. 1542 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1543 W83637HF 1544 W83667HG/HG-B 1545 W83687THF 1546 W83697HF 1547 W83697UG 1548 NCT6775 1549 NCT6776 1550 NCT6779 1551 NCT6791 1552 NCT6792 1553 NCT6102D/04D/06D 1554 NCT6116D 1555 1556 This watchdog simply watches your kernel to make sure it doesn't 1557 freeze, and if it does, it reboots your computer after a certain 1558 amount of time. 1559 1560 To compile this driver as a module, choose M here: the 1561 module will be called w83627hf_wdt. 1562 1563 Most people will say N. 1564 1565 config W83877F_WDT 1566 tristate "W83877F (EMACS) Watchdog Timer" 1567 depends on X86 1568 help 1569 This is the driver for the hardware watchdog on the W83877F chipset 1570 as used in EMACS PC-104 motherboards (and likely others). This 1571 watchdog simply watches your kernel to make sure it doesn't freeze, 1572 and if it does, it reboots your computer after a certain amount of 1573 time. 1574 1575 To compile this driver as a module, choose M here: the 1576 module will be called w83877f_wdt. 1577 1578 Most people will say N. 1579 1580 config W83977F_WDT 1581 tristate "W83977F (PCM-5335) Watchdog Timer" 1582 depends on X86 1583 help 1584 This is the driver for the hardware watchdog on the W83977F I/O chip 1585 as used in AAEON's PCM-5335 SBC (and likely others). This 1586 watchdog simply watches your kernel to make sure it doesn't freeze, 1587 and if it does, it reboots your computer after a certain amount of 1588 time. 1589 1590 To compile this driver as a module, choose M here: the 1591 module will be called w83977f_wdt. 1592 1593 config MACHZ_WDT 1594 tristate "ZF MachZ Watchdog" 1595 depends on X86 1596 help 1597 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1598 N. This is the driver for the watchdog timer built-in on that 1599 processor using ZF-Logic interface. This watchdog simply watches 1600 your kernel to make sure it doesn't freeze, and if it does, it 1601 reboots your computer after a certain amount of time. 1602 1603 To compile this driver as a module, choose M here: the 1604 module will be called machzwd. 1605 1606 config SBC_EPX_C3_WATCHDOG 1607 tristate "Winsystems SBC EPX-C3 watchdog" 1608 depends on X86 1609 help 1610 This is the driver for the built-in watchdog timer on the EPX-C3 1611 Single-board computer made by Winsystems, Inc. 1612 1613 *Note*: This hardware watchdog is not probeable and thus there 1614 is no way to know if writing to its IO address will corrupt 1615 your system or have any real effect. The only way to be sure 1616 that this driver does what you want is to make sure you 1617 are running it on an EPX-C3 from Winsystems with the watchdog 1618 timer at IO address 0x1ee and 0x1ef. It will write to both those 1619 IO ports. Basically, the assumption is made that if you compile 1620 this driver into your kernel and/or load it as a module, that you 1621 know what you are doing and that you are in fact running on an 1622 EPX-C3 board! 1623 1624 To compile this driver as a module, choose M here: the 1625 module will be called sbc_epx_c3. 1626 1627 config INTEL_MEI_WDT 1628 tristate "Intel MEI iAMT Watchdog" 1629 depends on INTEL_MEI && X86 1630 select WATCHDOG_CORE 1631 help 1632 A device driver for the Intel MEI iAMT watchdog. 1633 1634 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1635 Whenever the OS hangs or crashes, iAMT will send an event 1636 to any subscriber to this event. The watchdog doesn't reset the 1637 the platform. 1638 1639 To compile this driver as a module, choose M here: 1640 the module will be called mei_wdt. 1641 1642 config NI903X_WDT 1643 tristate "NI 903x/913x Watchdog" 1644 depends on X86 && ACPI 1645 select WATCHDOG_CORE 1646 help 1647 This is the driver for the watchdog timer on the National Instruments 1648 903x/913x real-time controllers. 1649 1650 To compile this driver as a module, choose M here: the module will be 1651 called ni903x_wdt. 1652 1653 config NIC7018_WDT 1654 tristate "NIC7018 Watchdog" 1655 depends on X86 && ACPI 1656 select WATCHDOG_CORE 1657 help 1658 Support for National Instruments NIC7018 Watchdog. 1659 1660 To compile this driver as a module, choose M here: the module will be 1661 called nic7018_wdt. 1662 1663 config SIEMENS_SIMATIC_IPC_WDT 1664 tristate "Siemens Simatic IPC Watchdog" 1665 depends on SIEMENS_SIMATIC_IPC 1666 select WATCHDOG_CORE 1667 select P2SB 1668 help 1669 This driver adds support for several watchdogs found in Industrial 1670 PCs from Siemens. 1671 1672 To compile this driver as a module, choose M here: the module will be 1673 called simatic-ipc-wdt. 1674 1675 # M68K Architecture 1676 1677 config M54xx_WATCHDOG 1678 tristate "MCF54xx watchdog support" 1679 depends on M548x 1680 help 1681 To compile this driver as a module, choose M here: the 1682 module will be called m54xx_wdt. 1683 1684 # MicroBlaze Architecture 1685 1686 # MIPS Architecture 1687 1688 config ATH79_WDT 1689 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1690 depends on ATH79 || (ARM && COMPILE_TEST) 1691 help 1692 Hardware driver for the built-in watchdog timer on the Atheros 1693 AR71XX/AR724X/AR913X SoCs. 1694 1695 config BCM47XX_WDT 1696 tristate "Broadcom BCM47xx Watchdog Timer" 1697 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1698 select WATCHDOG_CORE 1699 help 1700 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1701 1702 config RC32434_WDT 1703 tristate "IDT RC32434 SoC Watchdog Timer" 1704 depends on MIKROTIK_RB532 1705 help 1706 Hardware driver for the IDT RC32434 SoC built-in 1707 watchdog timer. 1708 1709 To compile this driver as a module, choose M here: the 1710 module will be called rc32434_wdt. 1711 1712 config INDYDOG 1713 tristate "Indy/I2 Hardware Watchdog" 1714 depends on SGI_HAS_INDYDOG 1715 help 1716 Hardware driver for the Indy's/I2's watchdog. This is a 1717 watchdog timer that will reboot the machine after a 60 second 1718 timer expired and no process has written to /dev/watchdog during 1719 that time. 1720 1721 config JZ4740_WDT 1722 tristate "Ingenic jz4740 SoC hardware watchdog" 1723 depends on MIPS 1724 depends on COMMON_CLK 1725 select WATCHDOG_CORE 1726 select MFD_SYSCON 1727 help 1728 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1729 1730 config WDT_MTX1 1731 tristate "MTX-1 Hardware Watchdog" 1732 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1733 help 1734 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1735 will reboot the machine after a 100 seconds timer expired. 1736 1737 config SIBYTE_WDOG 1738 tristate "Sibyte SoC hardware watchdog" 1739 depends on CPU_SB1 1740 help 1741 Watchdog driver for the built in watchdog hardware in Sibyte 1742 SoC processors. There are apparently two watchdog timers 1743 on such processors; this driver supports only the first one, 1744 because currently Linux only supports exporting one watchdog 1745 to userspace. 1746 1747 To compile this driver as a loadable module, choose M here. 1748 The module will be called sb_wdog. 1749 1750 config AR7_WDT 1751 tristate "TI AR7 Watchdog Timer" 1752 depends on AR7 || (MIPS && 32BIT && COMPILE_TEST) 1753 help 1754 Hardware driver for the TI AR7 Watchdog Timer. 1755 1756 config TXX9_WDT 1757 tristate "Toshiba TXx9 Watchdog Timer" 1758 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1759 select WATCHDOG_CORE 1760 help 1761 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1762 1763 config OCTEON_WDT 1764 tristate "Cavium OCTEON SOC family Watchdog Timer" 1765 depends on CAVIUM_OCTEON_SOC 1766 default y 1767 select WATCHDOG_CORE 1768 select EXPORT_UASM if OCTEON_WDT = m 1769 help 1770 Hardware driver for OCTEON's on chip watchdog timer. 1771 Enables the watchdog for all cores running Linux. It 1772 installs a NMI handler and pokes the watchdog based on an 1773 interrupt. On first expiration of the watchdog, the 1774 interrupt handler pokes it. The second expiration causes an 1775 NMI that prints a message. The third expiration causes a 1776 global soft reset. 1777 1778 When userspace has /dev/watchdog open, no poking is done 1779 from the first interrupt, it is then only poked when the 1780 device is written. 1781 1782 config BCM2835_WDT 1783 tristate "Broadcom BCM2835 hardware watchdog" 1784 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1785 select WATCHDOG_CORE 1786 help 1787 Watchdog driver for the built in watchdog hardware in Broadcom 1788 BCM2835 SoC. 1789 1790 To compile this driver as a loadable module, choose M here. 1791 The module will be called bcm2835_wdt. 1792 1793 config BCM_KONA_WDT 1794 tristate "BCM Kona Watchdog" 1795 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1796 select WATCHDOG_CORE 1797 help 1798 Support for the watchdog timer on the following Broadcom BCM281xx 1799 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1800 BCM28155 variants. 1801 1802 Say 'Y' or 'M' here to enable the driver. The module will be called 1803 bcm_kona_wdt. 1804 1805 config BCM_KONA_WDT_DEBUG 1806 bool "DEBUGFS support for BCM Kona Watchdog" 1807 depends on BCM_KONA_WDT 1808 help 1809 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1810 access to the driver's internal data structures as well as watchdog 1811 timer hardware registres. 1812 1813 If in doubt, say 'N'. 1814 1815 config BCM7038_WDT 1816 tristate "BCM63xx/BCM7038 Watchdog" 1817 select WATCHDOG_CORE 1818 depends on HAS_IOMEM 1819 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1820 help 1821 Watchdog driver for the built-in hardware in Broadcom 7038 and 1822 later SoCs used in set-top boxes. BCM7038 was made public 1823 during the 2004 CES, and since then, many Broadcom chips use this 1824 watchdog block, including some cable modem chips and DSL (63xx) 1825 chips. 1826 1827 config IMGPDC_WDT 1828 tristate "Imagination Technologies PDC Watchdog Timer" 1829 depends on HAS_IOMEM 1830 depends on MIPS || COMPILE_TEST 1831 select WATCHDOG_CORE 1832 help 1833 Driver for Imagination Technologies PowerDown Controller 1834 Watchdog Timer. 1835 1836 To compile this driver as a loadable module, choose M here. 1837 The module will be called imgpdc_wdt. 1838 1839 config LANTIQ_WDT 1840 tristate "Lantiq SoC watchdog" 1841 depends on LANTIQ 1842 select WATCHDOG_CORE 1843 help 1844 Hardware driver for the Lantiq SoC Watchdog Timer. 1845 1846 config LOONGSON1_WDT 1847 tristate "Loongson1 SoC hardware watchdog" 1848 depends on MACH_LOONGSON32 1849 select WATCHDOG_CORE 1850 help 1851 Hardware driver for the Loongson1 SoC Watchdog Timer. 1852 1853 config RALINK_WDT 1854 tristate "Ralink SoC watchdog" 1855 select WATCHDOG_CORE 1856 depends on RALINK 1857 help 1858 Hardware driver for the Ralink SoC Watchdog Timer. 1859 1860 config GXP_WATCHDOG 1861 tristate "HPE GXP watchdog support" 1862 depends on ARCH_HPE_GXP 1863 select WATCHDOG_CORE 1864 help 1865 Say Y here to include support for the watchdog timer 1866 in HPE GXP SoCs. 1867 1868 To compile this driver as a module, choose M here. 1869 The module will be called gxp-wdt. 1870 1871 config MT7621_WDT 1872 tristate "Mediatek SoC watchdog" 1873 select WATCHDOG_CORE 1874 select REGMAP_MMIO 1875 select MFD_SYSCON 1876 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1877 help 1878 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1879 1880 config PIC32_WDT 1881 tristate "Microchip PIC32 hardware watchdog" 1882 select WATCHDOG_CORE 1883 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1884 help 1885 Watchdog driver for the built in watchdog hardware in a PIC32. 1886 1887 Configuration bits must be set appropriately for the watchdog to be 1888 controlled by this driver. 1889 1890 To compile this driver as a loadable module, choose M here. 1891 The module will be called pic32-wdt. 1892 1893 config PIC32_DMT 1894 tristate "Microchip PIC32 Deadman Timer" 1895 select WATCHDOG_CORE 1896 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1897 help 1898 Watchdog driver for PIC32 instruction fetch counting timer. This 1899 specific timer is typically be used in mission critical and safety 1900 critical applications, where any single failure of the software 1901 functionality and sequencing must be detected. 1902 1903 To compile this driver as a loadable module, choose M here. 1904 The module will be called pic32-dmt. 1905 1906 # PARISC Architecture 1907 1908 # POWERPC Architecture 1909 1910 config GEF_WDT 1911 tristate "GE Watchdog Timer" 1912 depends on GE_FPGA 1913 help 1914 Watchdog timer found in a number of GE single board computers. 1915 1916 config MPC5200_WDT 1917 bool "MPC52xx Watchdog Timer" 1918 depends on PPC_MPC52xx || COMPILE_TEST 1919 help 1920 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1921 1922 config 8xxx_WDT 1923 tristate "MPC8xxx Platform Watchdog Timer" 1924 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1925 select WATCHDOG_CORE 1926 help 1927 This driver is for a SoC level watchdog that exists on some 1928 Freescale PowerPC processors. So far this driver supports: 1929 - MPC8xx watchdogs 1930 - MPC83xx watchdogs 1931 - MPC86xx watchdogs 1932 1933 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1934 1935 config PIKA_WDT 1936 tristate "PIKA FPGA Watchdog" 1937 depends on WARP || (PPC64 && COMPILE_TEST) 1938 default y 1939 help 1940 This enables the watchdog in the PIKA FPGA. Currently used on 1941 the Warp platform. 1942 1943 config BOOKE_WDT 1944 tristate "PowerPC Book-E Watchdog Timer" 1945 depends on BOOKE || 4xx 1946 select WATCHDOG_CORE 1947 help 1948 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1949 MPC85xx SOCs and the IBM PowerPC 440. 1950 1951 Please see Documentation/watchdog/watchdog-api.rst for 1952 more information. 1953 1954 config BOOKE_WDT_DEFAULT_TIMEOUT 1955 int "PowerPC Book-E Watchdog Timer Default Timeout" 1956 depends on BOOKE_WDT 1957 default 38 if PPC_E500 1958 range 0 63 if PPC_E500 1959 default 3 if !PPC_E500 1960 range 0 3 if !PPC_E500 1961 help 1962 Select the default watchdog timer period to be used by the PowerPC 1963 Book-E watchdog driver. A watchdog "event" occurs when the bit 1964 position represented by this number transitions from zero to one. 1965 1966 For Freescale Book-E processors, this is a number between 0 and 63. 1967 For other Book-E processors, this is a number between 0 and 3. 1968 1969 The value can be overridden by the wdt_period command-line parameter. 1970 1971 config MEN_A21_WDT 1972 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1973 select WATCHDOG_CORE 1974 depends on GPIOLIB || COMPILE_TEST 1975 help 1976 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1977 1978 The driver can also be built as a module. If so, the module will be 1979 called mena21_wdt. 1980 1981 If unsure select N here. 1982 1983 # PPC64 Architecture 1984 1985 config PSERIES_WDT 1986 tristate "POWER Architecture Platform Watchdog Timer" 1987 depends on PPC_PSERIES 1988 select WATCHDOG_CORE 1989 help 1990 Driver for virtual watchdog timers provided by PAPR 1991 hypervisors (e.g. PowerVM, KVM). 1992 1993 config WATCHDOG_RTAS 1994 tristate "RTAS watchdog" 1995 depends on PPC_RTAS 1996 help 1997 This driver adds watchdog support for the RTAS watchdog. 1998 1999 To compile this driver as a module, choose M here. The module 2000 will be called wdrtas. 2001 2002 # S390 Architecture 2003 2004 config DIAG288_WATCHDOG 2005 tristate "System z diag288 Watchdog" 2006 depends on S390 2007 select WATCHDOG_CORE 2008 help 2009 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2010 provide a virtual watchdog timer to their guest that cause a 2011 user define Control Program command to be executed after a 2012 timeout. 2013 LPAR provides a very similar interface. This driver handles 2014 both. 2015 2016 To compile this driver as a module, choose M here. The module 2017 will be called diag288_wdt. 2018 2019 # SUPERH (sh + sh64) Architecture 2020 2021 config SH_WDT 2022 tristate "SuperH Watchdog" 2023 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2024 select WATCHDOG_CORE 2025 help 2026 This driver adds watchdog support for the integrated watchdog in the 2027 SuperH processors. If you have one of these processors and wish 2028 to have watchdog support enabled, say Y, otherwise say N. 2029 2030 As a side note, saying Y here will automatically boost HZ to 1000 2031 so that the timer has a chance to clear the overflow counter. On 2032 slower systems (such as the SH-2 and SH-3) this will likely yield 2033 some performance issues. As such, the WDT should be avoided here 2034 unless it is absolutely necessary. 2035 2036 To compile this driver as a module, choose M here: the 2037 module will be called shwdt. 2038 2039 # SPARC Architecture 2040 2041 # SPARC64 Architecture 2042 2043 config WATCHDOG_CP1XXX 2044 tristate "CP1XXX Hardware Watchdog support" 2045 depends on SPARC64 && PCI 2046 help 2047 This is the driver for the hardware watchdog timers present on 2048 Sun Microsystems CompactPCI models CP1400 and CP1500. 2049 2050 To compile this driver as a module, choose M here: the 2051 module will be called cpwatchdog. 2052 2053 If you do not have a CompactPCI model CP1400 or CP1500, or 2054 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2055 you should say N to this option. 2056 2057 config WATCHDOG_RIO 2058 tristate "RIO Hardware Watchdog support" 2059 depends on SPARC64 && PCI 2060 help 2061 Say Y here to support the hardware watchdog capability on Sun RIO 2062 machines. The watchdog timeout period is normally one minute but 2063 can be changed with a boot-time parameter. 2064 2065 config WATCHDOG_SUN4V 2066 tristate "Sun4v Watchdog support" 2067 select WATCHDOG_CORE 2068 depends on SPARC64 2069 help 2070 Say Y here to support the hypervisor watchdog capability embedded 2071 in the SPARC sun4v architecture. 2072 2073 To compile this driver as a module, choose M here. The module will 2074 be called sun4v_wdt. 2075 2076 # XTENSA Architecture 2077 2078 # Xen Architecture 2079 2080 config XEN_WDT 2081 tristate "Xen Watchdog support" 2082 depends on XEN 2083 select WATCHDOG_CORE 2084 help 2085 Say Y here to support the hypervisor watchdog capability provided 2086 by Xen 4.0 and newer. The watchdog timeout period is normally one 2087 minute but can be changed with a boot-time parameter. 2088 2089 config UML_WATCHDOG 2090 tristate "UML watchdog" 2091 depends on UML || COMPILE_TEST 2092 2093 # 2094 # ISA-based Watchdog Cards 2095 # 2096 2097 comment "ISA-based Watchdog Cards" 2098 depends on ISA 2099 2100 config PCWATCHDOG 2101 tristate "Berkshire Products ISA-PC Watchdog" 2102 depends on ISA 2103 help 2104 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2105 This card simply watches your kernel to make sure it doesn't freeze, 2106 and if it does, it reboots your computer after a certain amount of 2107 time. This driver is like the WDT501 driver but for different 2108 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2109 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2110 2111 To compile this driver as a module, choose M here: the 2112 module will be called pcwd. 2113 2114 Most people will say N. 2115 2116 config MIXCOMWD 2117 tristate "Mixcom Watchdog" 2118 depends on ISA 2119 help 2120 This is a driver for the Mixcom hardware watchdog cards. This 2121 watchdog simply watches your kernel to make sure it doesn't freeze, 2122 and if it does, it reboots your computer after a certain amount of 2123 time. 2124 2125 To compile this driver as a module, choose M here: the 2126 module will be called mixcomwd. 2127 2128 Most people will say N. 2129 2130 config WDT 2131 tristate "WDT Watchdog timer" 2132 depends on ISA 2133 help 2134 If you have a WDT500P or WDT501P watchdog board, say Y here, 2135 otherwise N. It is not possible to probe for this board, which means 2136 that you have to inform the kernel about the IO port and IRQ that 2137 is needed (you can do this via the io and irq parameters) 2138 2139 To compile this driver as a module, choose M here: the 2140 module will be called wdt. 2141 2142 # 2143 # PCI-based Watchdog Cards 2144 # 2145 2146 comment "PCI-based Watchdog Cards" 2147 depends on PCI 2148 2149 config PCIPCWATCHDOG 2150 tristate "Berkshire Products PCI-PC Watchdog" 2151 depends on PCI 2152 help 2153 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2154 This card simply watches your kernel to make sure it doesn't freeze, 2155 and if it does, it reboots your computer after a certain amount of 2156 time. The card can also monitor the internal temperature of the PC. 2157 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2158 2159 To compile this driver as a module, choose M here: the 2160 module will be called pcwd_pci. 2161 2162 Most people will say N. 2163 2164 config WDTPCI 2165 tristate "PCI-WDT500/501 Watchdog timer" 2166 depends on PCI 2167 help 2168 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2169 2170 If you have a PCI-WDT501 watchdog board then you can enable the 2171 temperature sensor by setting the type parameter to 501. 2172 2173 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2174 can do this via the tachometer parameter. Only do this if you have a 2175 fan tachometer actually set up. 2176 2177 To compile this driver as a module, choose M here: the 2178 module will be called wdt_pci. 2179 2180 # 2181 # USB-based Watchdog Cards 2182 # 2183 2184 comment "USB-based Watchdog Cards" 2185 depends on USB 2186 2187 config USBPCWATCHDOG 2188 tristate "Berkshire Products USB-PC Watchdog" 2189 depends on USB 2190 help 2191 This is the driver for the Berkshire Products USB-PC Watchdog card. 2192 This card simply watches your kernel to make sure it doesn't freeze, 2193 and if it does, it reboots your computer after a certain amount of 2194 time. The card can also monitor the internal temperature of the PC. 2195 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2196 2197 To compile this driver as a module, choose M here: the 2198 module will be called pcwd_usb. 2199 2200 Most people will say N. 2201 2202 config KEEMBAY_WATCHDOG 2203 tristate "Intel Keem Bay SoC non-secure watchdog" 2204 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2205 select WATCHDOG_CORE 2206 help 2207 This option enable support for an In-secure watchdog timer driver for 2208 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2209 count unit. An interrupt will be triggered, when the count crosses 2210 the threshold configured in the register. 2211 2212 To compile this driver as a module, choose M here: the 2213 module will be called keembay_wdt. 2214 2215 endif # WATCHDOG 2216