1 2# 3# Watchdog device configuration 4# 5 6menuconfig WATCHDOG 7 bool "Watchdog Timer Support" 8 ---help--- 9 If you say Y here (and to one of the following options) and create a 10 character special file /dev/watchdog with major number 10 and minor 11 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 12 subsequently opening the file and then failing to write to it for 13 longer than 1 minute will result in rebooting the machine. This 14 could be useful for a networked machine that needs to come back 15 on-line as fast as possible after a lock-up. There's both a watchdog 16 implementation entirely in software (which can sometimes fail to 17 reboot the machine) and a driver for hardware watchdog boards, which 18 are more robust and can also keep track of the temperature inside 19 your computer. For details, read 20 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source. 21 22 The watchdog is usually used together with the watchdog daemon 23 which is available from 24 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can 25 also monitor NFS connections and can reboot the machine when the process 26 table is full. 27 28 If unsure, say N. 29 30if WATCHDOG 31 32config WATCHDOG_CORE 33 bool "WatchDog Timer Driver Core" 34 ---help--- 35 Say Y here if you want to use the new watchdog timer driver core. 36 This driver provides a framework for all watchdog timer drivers 37 and gives them the /dev/watchdog interface (and later also the 38 sysfs interface). 39 40config WATCHDOG_NOWAYOUT 41 bool "Disable watchdog shutdown on close" 42 help 43 The default watchdog behaviour (which you get if you say N here) is 44 to stop the timer if the process managing it closes the file 45 /dev/watchdog. It's always remotely possible that this process might 46 get killed. If you say Y here, the watchdog cannot be stopped once 47 it has been started. 48 49config WATCHDOG_HANDLE_BOOT_ENABLED 50 bool "Update boot-enabled watchdog until userspace takes over" 51 default y 52 help 53 The default watchdog behaviour (which you get if you say Y here) is 54 to ping watchdog devices that were enabled before the driver has 55 been loaded until control is taken over from userspace using the 56 /dev/watchdog file. If you say N here, the kernel will not update 57 the watchdog on its own. Thus if your userspace does not start fast 58 enough your device will reboot. 59 60config WATCHDOG_SYSFS 61 bool "Read different watchdog information through sysfs" 62 help 63 Say Y here if you want to enable watchdog device status read through 64 sysfs attributes. 65 66# 67# General Watchdog drivers 68# 69 70comment "Watchdog Device Drivers" 71 72# Architecture Independent 73 74config SOFT_WATCHDOG 75 tristate "Software watchdog" 76 select WATCHDOG_CORE 77 help 78 A software monitoring watchdog. This will fail to reboot your system 79 from some situations that the hardware watchdog will recover 80 from. Equally it's a lot cheaper to install. 81 82 To compile this driver as a module, choose M here: the 83 module will be called softdog. 84 85config SOFT_WATCHDOG_PRETIMEOUT 86 bool "Software watchdog pretimeout governor support" 87 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 88 help 89 Enable this if you want to use pretimeout governors with the software 90 watchdog. Be aware that governors might affect the watchdog because it 91 is purely software, e.g. the panic governor will stall it! 92 93config DA9052_WATCHDOG 94 tristate "Dialog DA9052 Watchdog" 95 depends on PMIC_DA9052 || COMPILE_TEST 96 select WATCHDOG_CORE 97 help 98 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 99 cause system reset. 100 101 Say Y here to include support for the DA9052 watchdog. 102 Alternatively say M to compile the driver as a module, 103 which will be called da9052_wdt. 104 105config DA9055_WATCHDOG 106 tristate "Dialog Semiconductor DA9055 Watchdog" 107 depends on MFD_DA9055 || COMPILE_TEST 108 select WATCHDOG_CORE 109 help 110 If you say yes here you get support for watchdog on the Dialog 111 Semiconductor DA9055 PMIC. 112 113 This driver can also be built as a module. If so, the module 114 will be called da9055_wdt. 115 116config DA9063_WATCHDOG 117 tristate "Dialog DA9063 Watchdog" 118 depends on MFD_DA9063 || COMPILE_TEST 119 select WATCHDOG_CORE 120 help 121 Support for the watchdog in the DA9063 PMIC. 122 123 This driver can be built as a module. The module name is da9063_wdt. 124 125config DA9062_WATCHDOG 126 tristate "Dialog DA9062/61 Watchdog" 127 depends on MFD_DA9062 || COMPILE_TEST 128 select WATCHDOG_CORE 129 help 130 Support for the watchdog in the DA9062 and DA9061 PMICs. 131 132 This driver can be built as a module. The module name is da9062_wdt. 133 134config GPIO_WATCHDOG 135 tristate "Watchdog device controlled through GPIO-line" 136 depends on OF_GPIO 137 select WATCHDOG_CORE 138 help 139 If you say yes here you get support for watchdog device 140 controlled through GPIO-line. 141 142config GPIO_WATCHDOG_ARCH_INITCALL 143 bool "Register the watchdog as early as possible" 144 depends on GPIO_WATCHDOG=y 145 help 146 In some situations, the default initcall level (module_init) 147 in not early enough in the boot process to avoid the watchdog 148 to be triggered. 149 If you say yes here, the initcall level would be raised to 150 arch_initcall. 151 If in doubt, say N. 152 153config MENF21BMC_WATCHDOG 154 tristate "MEN 14F021P00 BMC Watchdog" 155 depends on MFD_MENF21BMC || COMPILE_TEST 156 depends on I2C 157 select WATCHDOG_CORE 158 help 159 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 160 161 This driver can also be built as a module. If so the module 162 will be called menf21bmc_wdt. 163 164config TANGOX_WATCHDOG 165 tristate "Sigma Designs SMP86xx/SMP87xx watchdog" 166 select WATCHDOG_CORE 167 depends on ARCH_TANGO || COMPILE_TEST 168 depends on HAS_IOMEM 169 help 170 Support for the watchdog in Sigma Designs SMP86xx (tango3) 171 and SMP87xx (tango4) family chips. 172 173 This driver can be built as a module. The module name is tangox_wdt. 174 175config WDAT_WDT 176 tristate "ACPI Watchdog Action Table (WDAT)" 177 depends on ACPI 178 select WATCHDOG_CORE 179 select ACPI_WATCHDOG 180 help 181 This driver adds support for systems with ACPI Watchdog Action 182 Table (WDAT) table. Servers typically have this but it can be 183 found on some desktop machines as well. This driver will take 184 over the native iTCO watchdog driver found on many Intel CPUs. 185 186 To compile this driver as module, choose M here: the module will 187 be called wdat_wdt. 188 189config WM831X_WATCHDOG 190 tristate "WM831x watchdog" 191 depends on MFD_WM831X 192 select WATCHDOG_CORE 193 help 194 Support for the watchdog in the WM831x AudioPlus PMICs. When 195 the watchdog triggers the system will be reset. 196 197config WM8350_WATCHDOG 198 tristate "WM8350 watchdog" 199 depends on MFD_WM8350 200 select WATCHDOG_CORE 201 help 202 Support for the watchdog in the WM8350 AudioPlus PMIC. When 203 the watchdog triggers the system will be reset. 204 205config XILINX_WATCHDOG 206 tristate "Xilinx Watchdog timer" 207 depends on HAS_IOMEM 208 select WATCHDOG_CORE 209 help 210 Watchdog driver for the xps_timebase_wdt ip core. 211 212 To compile this driver as a module, choose M here: the 213 module will be called of_xilinx_wdt. 214 215config ZIIRAVE_WATCHDOG 216 tristate "Zodiac RAVE Watchdog Timer" 217 depends on I2C 218 select WATCHDOG_CORE 219 help 220 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 221 Processor. 222 223 To compile this driver as a module, choose M here: the 224 module will be called ziirave_wdt. 225 226config RAVE_SP_WATCHDOG 227 tristate "RAVE SP Watchdog timer" 228 depends on RAVE_SP_CORE 229 select WATCHDOG_CORE 230 help 231 Support for the watchdog on RAVE SP device. 232 233# ALPHA Architecture 234 235# ARM Architecture 236 237config ARM_SP805_WATCHDOG 238 tristate "ARM SP805 Watchdog" 239 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 240 select WATCHDOG_CORE 241 help 242 ARM Primecell SP805 Watchdog timer. This will reboot your system when 243 the timeout is reached. 244 245config ARM_SBSA_WATCHDOG 246 tristate "ARM SBSA Generic Watchdog" 247 depends on ARM64 248 depends on ARM_ARCH_TIMER 249 select WATCHDOG_CORE 250 help 251 ARM SBSA Generic Watchdog has two stage timeouts: 252 the first signal (WS0) is for alerting the system by interrupt, 253 the second one (WS1) is a real hardware reset. 254 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 255 256 This driver can operate ARM SBSA Generic Watchdog as a single stage 257 or a two stages watchdog, it depends on the module parameter "action". 258 259 Note: the maximum timeout in the two stages mode is half of that in 260 the single stage mode. 261 262 To compile this driver as module, choose M here: The module 263 will be called sbsa_gwdt. 264 265config ASM9260_WATCHDOG 266 tristate "Alphascale ASM9260 watchdog" 267 depends on MACH_ASM9260 || COMPILE_TEST 268 depends on OF 269 select WATCHDOG_CORE 270 select RESET_CONTROLLER 271 help 272 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 273 system when the timeout is reached. 274 275config AT91RM9200_WATCHDOG 276 tristate "AT91RM9200 watchdog" 277 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 278 help 279 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 280 system when the timeout is reached. 281 282config AT91SAM9X_WATCHDOG 283 tristate "AT91SAM9X / AT91CAP9 watchdog" 284 depends on ARCH_AT91 || COMPILE_TEST 285 select WATCHDOG_CORE 286 help 287 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 288 reboot your system when the timeout is reached. 289 290config SAMA5D4_WATCHDOG 291 tristate "Atmel SAMA5D4 Watchdog Timer" 292 depends on ARCH_AT91 || COMPILE_TEST 293 select WATCHDOG_CORE 294 help 295 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 296 Its Watchdog Timer Mode Register can be written more than once. 297 This will reboot your system when the timeout is reached. 298 299config CADENCE_WATCHDOG 300 tristate "Cadence Watchdog Timer" 301 depends on HAS_IOMEM 302 select WATCHDOG_CORE 303 help 304 Say Y here if you want to include support for the watchdog 305 timer in the Xilinx Zynq. 306 307config 21285_WATCHDOG 308 tristate "DC21285 watchdog" 309 depends on FOOTBRIDGE 310 help 311 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 312 here if you wish to use this. Alternatively say M to compile the 313 driver as a module, which will be called wdt285. 314 315 This driver does not work on all machines. In particular, early CATS 316 boards have hardware problems that will cause the machine to simply 317 lock up if the watchdog fires. 318 319 "If in doubt, leave it out" - say N. 320 321config 977_WATCHDOG 322 tristate "NetWinder WB83C977 watchdog" 323 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 324 help 325 Say Y here to include support for the WB977 watchdog included in 326 NetWinder machines. Alternatively say M to compile the driver as 327 a module, which will be called wdt977. 328 329 Not sure? It's safe to say N. 330 331config FTWDT010_WATCHDOG 332 tristate "Faraday Technology FTWDT010 watchdog" 333 depends on ARM || COMPILE_TEST 334 select WATCHDOG_CORE 335 default ARCH_GEMINI 336 help 337 Say Y here if to include support for the Faraday Technology 338 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 339 family of devices. 340 341 To compile this driver as a module, choose M here: the 342 module will be called ftwdt010_wdt. 343 344config IXP4XX_WATCHDOG 345 tristate "IXP4xx Watchdog" 346 depends on ARCH_IXP4XX 347 help 348 Say Y here if to include support for the watchdog timer 349 in the Intel IXP4xx network processors. This driver can 350 be built as a module by choosing M. The module will 351 be called ixp4xx_wdt. 352 353 Note: The internal IXP4xx watchdog does a soft CPU reset 354 which doesn't reset any peripherals. There are circumstances 355 where the watchdog will fail to reset the board correctly 356 (e.g., if the boot ROM is in an unreadable state). 357 358 Say N if you are unsure. 359 360config KS8695_WATCHDOG 361 tristate "KS8695 watchdog" 362 depends on ARCH_KS8695 363 help 364 Watchdog timer embedded into KS8695 processor. This will reboot your 365 system when the timeout is reached. 366 367config HAVE_S3C2410_WATCHDOG 368 bool 369 help 370 This will include watchdog timer support for Samsung SoCs. If 371 you want to include watchdog support for any machine, kindly 372 select this in the respective mach-XXXX/Kconfig file. 373 374config S3C2410_WATCHDOG 375 tristate "S3C2410 Watchdog" 376 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST 377 select WATCHDOG_CORE 378 select MFD_SYSCON if ARCH_EXYNOS 379 help 380 Watchdog timer block in the Samsung SoCs. This will reboot 381 the system when the timer expires with the watchdog enabled. 382 383 The driver is limited by the speed of the system's PCLK 384 signal, so with reasonably fast systems (PCLK around 50-66MHz) 385 then watchdog intervals of over approximately 20seconds are 386 unavailable. 387 388 The driver can be built as a module by choosing M, and will 389 be called s3c2410_wdt 390 391config SA1100_WATCHDOG 392 tristate "SA1100/PXA2xx watchdog" 393 depends on ARCH_SA1100 || ARCH_PXA 394 help 395 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 396 reboot your system when timeout is reached. 397 398 NOTE: once enabled, this timer cannot be disabled. 399 400 To compile this driver as a module, choose M here: the 401 module will be called sa1100_wdt. 402 403config DW_WATCHDOG 404 tristate "Synopsys DesignWare watchdog" 405 depends on HAS_IOMEM 406 select WATCHDOG_CORE 407 help 408 Say Y here if to include support for the Synopsys DesignWare 409 watchdog timer found in many chips. 410 To compile this driver as a module, choose M here: the 411 module will be called dw_wdt. 412 413config EP93XX_WATCHDOG 414 tristate "EP93xx Watchdog" 415 depends on ARCH_EP93XX || COMPILE_TEST 416 select WATCHDOG_CORE 417 help 418 Say Y here if to include support for the watchdog timer 419 embedded in the Cirrus Logic EP93xx family of devices. 420 421 To compile this driver as a module, choose M here: the 422 module will be called ep93xx_wdt. 423 424config OMAP_WATCHDOG 425 tristate "OMAP Watchdog" 426 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 427 select WATCHDOG_CORE 428 help 429 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 430 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 431 432config PNX4008_WATCHDOG 433 tristate "LPC32XX Watchdog" 434 depends on ARCH_LPC32XX 435 select WATCHDOG_CORE 436 help 437 Say Y here if to include support for the watchdog timer 438 in the LPC32XX processor. 439 This driver can be built as a module by choosing M. The module 440 will be called pnx4008_wdt. 441 442 Say N if you are unsure. 443 444config IOP_WATCHDOG 445 tristate "IOP Watchdog" 446 depends on ARCH_IOP13XX 447 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 448 help 449 Say Y here if to include support for the watchdog timer 450 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 451 be built as a module by choosing M. The module will 452 be called iop_wdt. 453 454 Note: The IOP13XX watchdog does an Internal Bus Reset which will 455 affect both cores and the peripherals of the IOP. The ATU-X 456 and/or ATUe configuration registers will remain intact, but if 457 operating as an Root Complex and/or Central Resource, the PCI-X 458 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 459 460config DAVINCI_WATCHDOG 461 tristate "DaVinci watchdog" 462 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 463 select WATCHDOG_CORE 464 help 465 Say Y here if to include support for the watchdog timer 466 in the DaVinci DM644x/DM646x or Keystone processors. 467 To compile this driver as a module, choose M here: the 468 module will be called davinci_wdt. 469 470 NOTE: once enabled, this timer cannot be disabled. 471 Say N if you are unsure. 472 473config ORION_WATCHDOG 474 tristate "Orion watchdog" 475 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110) 476 depends on ARM 477 select WATCHDOG_CORE 478 help 479 Say Y here if to include support for the watchdog timer 480 in the Marvell Orion5x and Kirkwood ARM SoCs. 481 To compile this driver as a module, choose M here: the 482 module will be called orion_wdt. 483 484config RN5T618_WATCHDOG 485 tristate "Ricoh RN5T618 watchdog" 486 depends on MFD_RN5T618 || COMPILE_TEST 487 select WATCHDOG_CORE 488 help 489 If you say yes here you get support for watchdog on the Ricoh 490 RN5T618 PMIC. 491 492 This driver can also be built as a module. If so, the module 493 will be called rn5t618_wdt. 494 495config SUNXI_WATCHDOG 496 tristate "Allwinner SoCs watchdog support" 497 depends on ARCH_SUNXI || COMPILE_TEST 498 select WATCHDOG_CORE 499 help 500 Say Y here to include support for the watchdog timer 501 in Allwinner SoCs. 502 To compile this driver as a module, choose M here: the 503 module will be called sunxi_wdt. 504 505config COH901327_WATCHDOG 506 bool "ST-Ericsson COH 901 327 watchdog" 507 depends on ARCH_U300 || (ARM && COMPILE_TEST) 508 default y if MACH_U300 509 select WATCHDOG_CORE 510 help 511 Say Y here to include Watchdog timer support for the 512 watchdog embedded into the ST-Ericsson U300 series platforms. 513 This watchdog is used to reset the system and thus cannot be 514 compiled as a module. 515 516config TWL4030_WATCHDOG 517 tristate "TWL4030 Watchdog" 518 depends on TWL4030_CORE 519 select WATCHDOG_CORE 520 help 521 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 522 watchdog timer support for TWL4030 chips. 523 524config STMP3XXX_RTC_WATCHDOG 525 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 526 depends on RTC_DRV_STMP || COMPILE_TEST 527 select WATCHDOG_CORE 528 help 529 Say Y here to include support for the watchdog timer inside 530 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 531 To compile this driver as a module, choose M here: the 532 module will be called stmp3xxx_rtc_wdt. 533 534config NUC900_WATCHDOG 535 tristate "Nuvoton NUC900 watchdog" 536 depends on ARCH_W90X900 || COMPILE_TEST 537 help 538 Say Y here if to include support for the watchdog timer 539 for the Nuvoton NUC900 series SoCs. 540 To compile this driver as a module, choose M here: the 541 module will be called nuc900_wdt. 542 543config TS4800_WATCHDOG 544 tristate "TS-4800 Watchdog" 545 depends on HAS_IOMEM && OF 546 depends on SOC_IMX51 || COMPILE_TEST 547 select WATCHDOG_CORE 548 select MFD_SYSCON 549 help 550 Technologic Systems TS-4800 has watchdog timer implemented in 551 an external FPGA. Say Y here if you want to support for the 552 watchdog timer on TS-4800 board. 553 554config TS72XX_WATCHDOG 555 tristate "TS-72XX SBC Watchdog" 556 depends on MACH_TS72XX || COMPILE_TEST 557 help 558 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 559 watchdog timer implemented in a external CPLD chip. Say Y here 560 if you want to support for the watchdog timer on TS-72XX boards. 561 562 To compile this driver as a module, choose M here: the 563 module will be called ts72xx_wdt. 564 565config MAX63XX_WATCHDOG 566 tristate "Max63xx watchdog" 567 depends on HAS_IOMEM 568 select WATCHDOG_CORE 569 help 570 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 571 572config MAX77620_WATCHDOG 573 tristate "Maxim Max77620 Watchdog Timer" 574 depends on MFD_MAX77620 || COMPILE_TEST 575 help 576 This is the driver for the Max77620 watchdog timer. 577 Say 'Y' here to enable the watchdog timer support for 578 MAX77620 chips. To compile this driver as a module, 579 choose M here: the module will be called max77620_wdt. 580 581config IMX2_WDT 582 tristate "IMX2+ Watchdog" 583 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 584 select REGMAP_MMIO 585 select WATCHDOG_CORE 586 help 587 This is the driver for the hardware watchdog 588 on the Freescale IMX2 and later processors. 589 If you have one of these processors and wish to have 590 watchdog support enabled, say Y, otherwise say N. 591 592 To compile this driver as a module, choose M here: the 593 module will be called imx2_wdt. 594 595config UX500_WATCHDOG 596 tristate "ST-Ericsson Ux500 watchdog" 597 depends on MFD_DB8500_PRCMU 598 select WATCHDOG_CORE 599 default y 600 help 601 Say Y here to include Watchdog timer support for the watchdog 602 existing in the prcmu of ST-Ericsson Ux500 series platforms. 603 604 To compile this driver as a module, choose M here: the 605 module will be called ux500_wdt. 606 607config RETU_WATCHDOG 608 tristate "Retu watchdog" 609 depends on MFD_RETU 610 select WATCHDOG_CORE 611 help 612 Retu watchdog driver for Nokia Internet Tablets (770, N800, 613 N810). At least on N800 the watchdog cannot be disabled, so 614 this driver is essential and you should enable it. 615 616 To compile this driver as a module, choose M here: the 617 module will be called retu_wdt. 618 619config MOXART_WDT 620 tristate "MOXART watchdog" 621 depends on ARCH_MOXART || COMPILE_TEST 622 help 623 Say Y here to include Watchdog timer support for the watchdog 624 existing on the MOXA ART SoC series platforms. 625 626 To compile this driver as a module, choose M here: the 627 module will be called moxart_wdt. 628 629config SIRFSOC_WATCHDOG 630 tristate "SiRFSOC watchdog" 631 depends on ARCH_SIRF || COMPILE_TEST 632 select WATCHDOG_CORE 633 default y 634 help 635 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 636 the watchdog triggers the system will be reset. 637 638config ST_LPC_WATCHDOG 639 tristate "STMicroelectronics LPC Watchdog" 640 depends on ARCH_STI || COMPILE_TEST 641 depends on OF 642 select WATCHDOG_CORE 643 help 644 Say Y here to include STMicroelectronics Low Power Controller 645 (LPC) based Watchdog timer support. 646 647 To compile this driver as a module, choose M here: the 648 module will be called st_lpc_wdt. 649 650config TEGRA_WATCHDOG 651 tristate "Tegra watchdog" 652 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 653 select WATCHDOG_CORE 654 help 655 Say Y here to include support for the watchdog timer 656 embedded in NVIDIA Tegra SoCs. 657 658 To compile this driver as a module, choose M here: the 659 module will be called tegra_wdt. 660 661config QCOM_WDT 662 tristate "QCOM watchdog" 663 depends on HAS_IOMEM 664 depends on ARCH_QCOM || COMPILE_TEST 665 select WATCHDOG_CORE 666 help 667 Say Y here to include Watchdog timer support for the watchdog found 668 on QCOM chipsets. Currently supported targets are the MSM8960, 669 APQ8064, and IPQ8064. 670 671 To compile this driver as a module, choose M here: the 672 module will be called qcom_wdt. 673 674config MESON_GXBB_WATCHDOG 675 tristate "Amlogic Meson GXBB SoCs watchdog support" 676 depends on ARCH_MESON || COMPILE_TEST 677 select WATCHDOG_CORE 678 help 679 Say Y here to include support for the watchdog timer 680 in Amlogic Meson GXBB SoCs. 681 To compile this driver as a module, choose M here: the 682 module will be called meson_gxbb_wdt. 683 684config MESON_WATCHDOG 685 tristate "Amlogic Meson SoCs watchdog support" 686 depends on ARCH_MESON || COMPILE_TEST 687 select WATCHDOG_CORE 688 help 689 Say Y here to include support for the watchdog timer 690 in Amlogic Meson SoCs. 691 To compile this driver as a module, choose M here: the 692 module will be called meson_wdt. 693 694config MEDIATEK_WATCHDOG 695 tristate "Mediatek SoCs watchdog support" 696 depends on ARCH_MEDIATEK || COMPILE_TEST 697 select WATCHDOG_CORE 698 help 699 Say Y here to include support for the watchdog timer 700 in Mediatek SoCs. 701 To compile this driver as a module, choose M here: the 702 module will be called mtk_wdt. 703 704config DIGICOLOR_WATCHDOG 705 tristate "Conexant Digicolor SoCs watchdog support" 706 depends on ARCH_DIGICOLOR || COMPILE_TEST 707 select WATCHDOG_CORE 708 help 709 Say Y here to include support for the watchdog timer 710 in Conexant Digicolor SoCs. 711 To compile this driver as a module, choose M here: the 712 module will be called digicolor_wdt. 713 714config LPC18XX_WATCHDOG 715 tristate "LPC18xx/43xx Watchdog" 716 depends on ARCH_LPC18XX || COMPILE_TEST 717 depends on HAS_IOMEM 718 select WATCHDOG_CORE 719 help 720 Say Y here if to include support for the watchdog timer 721 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 722 processors. 723 To compile this driver as a module, choose M here: the 724 module will be called lpc18xx_wdt. 725 726config ATLAS7_WATCHDOG 727 tristate "CSRatlas7 watchdog" 728 depends on ARCH_ATLAS7 || COMPILE_TEST 729 help 730 Say Y here to include Watchdog timer support for the watchdog 731 existing on the CSRatlas7 series platforms. 732 733 To compile this driver as a module, choose M here: the 734 module will be called atlas7_wdt. 735 736config RENESAS_WDT 737 tristate "Renesas WDT Watchdog" 738 depends on ARCH_RENESAS || COMPILE_TEST 739 select WATCHDOG_CORE 740 help 741 This driver adds watchdog support for the integrated watchdogs in the 742 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 743 744config RENESAS_RZAWDT 745 tristate "Renesas RZ/A WDT Watchdog" 746 depends on ARCH_RENESAS || COMPILE_TEST 747 select WATCHDOG_CORE 748 help 749 This driver adds watchdog support for the integrated watchdogs in the 750 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 751 752config ASPEED_WATCHDOG 753 tristate "Aspeed BMC watchdog support" 754 depends on ARCH_ASPEED || COMPILE_TEST 755 select WATCHDOG_CORE 756 help 757 Say Y here to include support for the watchdog timer 758 in Aspeed BMC SoCs. 759 760 This driver is required to reboot the SoC. 761 762 To compile this driver as a module, choose M here: the 763 module will be called aspeed_wdt. 764 765config ZX2967_WATCHDOG 766 tristate "ZTE zx2967 SoCs watchdog support" 767 depends on ARCH_ZX 768 select WATCHDOG_CORE 769 help 770 Say Y here to include support for the watchdog timer 771 in ZTE zx2967 SoCs. 772 To compile this driver as a module, choose M here: the 773 module will be called zx2967_wdt. 774 775config STM32_WATCHDOG 776 tristate "STM32 Independent WatchDoG (IWDG) support" 777 depends on ARCH_STM32 778 select WATCHDOG_CORE 779 default y 780 help 781 Say Y here to include support for the watchdog timer 782 in stm32 SoCs. 783 784 To compile this driver as a module, choose M here: the 785 module will be called stm32_iwdg. 786 787config UNIPHIER_WATCHDOG 788 tristate "UniPhier watchdog support" 789 depends on ARCH_UNIPHIER || COMPILE_TEST 790 depends on OF && MFD_SYSCON 791 select WATCHDOG_CORE 792 help 793 Say Y here to include support watchdog timer embedded 794 into the UniPhier system. 795 796 To compile this driver as a module, choose M here: the 797 module will be called uniphier_wdt. 798 799config RTD119X_WATCHDOG 800 bool "Realtek RTD119x/RTD129x watchdog support" 801 depends on ARCH_REALTEK || COMPILE_TEST 802 depends on OF 803 select WATCHDOG_CORE 804 default ARCH_REALTEK 805 help 806 Say Y here to include support for the watchdog timer in 807 Realtek RTD1295 SoCs. 808 809config SPRD_WATCHDOG 810 tristate "Spreadtrum watchdog support" 811 depends on ARCH_SPRD || COMPILE_TEST 812 select WATCHDOG_CORE 813 help 814 Say Y here to include watchdog timer supported 815 by Spreadtrum system. 816 817# BLACKFIN Architecture 818 819config BFIN_WDT 820 tristate "Blackfin On-Chip Watchdog Timer" 821 depends on BLACKFIN 822 ---help--- 823 If you say yes here you will get support for the Blackfin On-Chip 824 Watchdog Timer. If you have one of these processors and wish to 825 have watchdog support enabled, say Y, otherwise say N. 826 827 To compile this driver as a module, choose M here: the 828 module will be called bfin_wdt. 829 830# CRIS Architecture 831 832# FRV Architecture 833 834# X86 (i386 + ia64 + x86_64) Architecture 835 836config ACQUIRE_WDT 837 tristate "Acquire SBC Watchdog Timer" 838 depends on X86 839 ---help--- 840 This is the driver for the hardware watchdog on Single Board 841 Computers produced by Acquire Inc (and others). This watchdog 842 simply watches your kernel to make sure it doesn't freeze, and if 843 it does, it reboots your computer after a certain amount of time. 844 845 To compile this driver as a module, choose M here: the 846 module will be called acquirewdt. 847 848 Most people will say N. 849 850config ADVANTECH_WDT 851 tristate "Advantech SBC Watchdog Timer" 852 depends on X86 853 help 854 If you are configuring a Linux kernel for the Advantech single-board 855 computer, say `Y' here to support its built-in watchdog timer 856 feature. More information can be found at 857 <http://www.advantech.com.tw/products/> 858 859config ALIM1535_WDT 860 tristate "ALi M1535 PMU Watchdog Timer" 861 depends on X86 && PCI 862 ---help--- 863 This is the driver for the hardware watchdog on the ALi M1535 PMU. 864 865 To compile this driver as a module, choose M here: the 866 module will be called alim1535_wdt. 867 868 Most people will say N. 869 870config ALIM7101_WDT 871 tristate "ALi M7101 PMU Computer Watchdog" 872 depends on PCI 873 help 874 This is the driver for the hardware watchdog on the ALi M7101 PMU 875 as used in the x86 Cobalt servers and also found in some 876 SPARC Netra servers too. 877 878 To compile this driver as a module, choose M here: the 879 module will be called alim7101_wdt. 880 881 Most people will say N. 882 883config EBC_C384_WDT 884 tristate "WinSystems EBC-C384 Watchdog Timer" 885 depends on X86 && ISA_BUS_API 886 select WATCHDOG_CORE 887 help 888 Enables watchdog timer support for the watchdog timer on the 889 WinSystems EBC-C384 motherboard. The timeout may be configured via 890 the timeout module parameter. 891 892config F71808E_WDT 893 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 894 depends on X86 895 help 896 This is the driver for the hardware watchdog on the Fintek F71808E, 897 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866 898 Super I/O controllers. 899 900 You can compile this driver directly into the kernel, or use 901 it as a module. The module will be called f71808e_wdt. 902 903config SP5100_TCO 904 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 905 depends on X86 && PCI 906 ---help--- 907 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 908 (Total Cost of Ownership) timer is a watchdog timer that will reboot 909 the machine after its expiration. The expiration time can be 910 configured with the "heartbeat" parameter. 911 912 To compile this driver as a module, choose M here: the 913 module will be called sp5100_tco. 914 915config GEODE_WDT 916 tristate "AMD Geode CS5535/CS5536 Watchdog" 917 depends on CS5535_MFGPT 918 help 919 This driver enables a watchdog capability built into the 920 CS5535/CS5536 companion chips for the AMD Geode GX and LX 921 processors. This watchdog watches your kernel to make sure 922 it doesn't freeze, and if it does, it reboots your computer after 923 a certain amount of time. 924 925 You can compile this driver directly into the kernel, or use 926 it as a module. The module will be called geodewdt. 927 928config SC520_WDT 929 tristate "AMD Elan SC520 processor Watchdog" 930 depends on MELAN || COMPILE_TEST 931 help 932 This is the driver for the hardware watchdog built in to the 933 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 934 This watchdog simply watches your kernel to make sure it doesn't 935 freeze, and if it does, it reboots your computer after a certain 936 amount of time. 937 938 You can compile this driver directly into the kernel, or use 939 it as a module. The module will be called sc520_wdt. 940 941config SBC_FITPC2_WATCHDOG 942 tristate "Compulab SBC-FITPC2 watchdog" 943 depends on X86 944 ---help--- 945 This is the driver for the built-in watchdog timer on the fit-PC2, 946 fit-PC2i, CM-iAM single-board computers made by Compulab. 947 948 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 949 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 950 951 Entering BIOS setup temporary disables watchdog operation regardless to current state, 952 so system will not be restarted while user in BIOS setup. 953 954 Once watchdog was enabled the system will be restarted every 955 "Watchdog Timer Value" period, so to prevent it user can restart or 956 disable the watchdog. 957 958 To compile this driver as a module, choose M here: the 959 module will be called sbc_fitpc2_wdt. 960 961 Most people will say N. 962 963config EUROTECH_WDT 964 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 965 depends on X86 966 help 967 Enable support for the watchdog timer on the Eurotech CPU-1220 and 968 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 969 information are at <http://www.eurotech.it/>. 970 971config IB700_WDT 972 tristate "IB700 SBC Watchdog Timer" 973 depends on X86 974 ---help--- 975 This is the driver for the hardware watchdog on the IB700 Single 976 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 977 simply watches your kernel to make sure it doesn't freeze, and if 978 it does, it reboots your computer after a certain amount of time. 979 980 This driver is like the WDT501 driver but for slightly different hardware. 981 982 To compile this driver as a module, choose M here: the 983 module will be called ib700wdt. 984 985 Most people will say N. 986 987config IBMASR 988 tristate "IBM Automatic Server Restart" 989 depends on X86 990 help 991 This is the driver for the IBM Automatic Server Restart watchdog 992 timer built-in into some eServer xSeries machines. 993 994 To compile this driver as a module, choose M here: the 995 module will be called ibmasr. 996 997config WAFER_WDT 998 tristate "ICP Single Board Computer Watchdog Timer" 999 depends on X86 1000 help 1001 This is a driver for the hardware watchdog on the ICP Single 1002 Board Computer. This driver is working on (at least) the following 1003 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1004 1005 To compile this driver as a module, choose M here: the 1006 module will be called wafer5823wdt. 1007 1008config I6300ESB_WDT 1009 tristate "Intel 6300ESB Timer/Watchdog" 1010 depends on PCI 1011 ---help--- 1012 Hardware driver for the watchdog timer built into the Intel 1013 6300ESB controller hub. 1014 1015 To compile this driver as a module, choose M here: the 1016 module will be called i6300esb. 1017 1018config IE6XX_WDT 1019 tristate "Intel Atom E6xx Watchdog" 1020 depends on X86 && PCI 1021 select WATCHDOG_CORE 1022 select MFD_CORE 1023 select LPC_SCH 1024 ---help--- 1025 Hardware driver for the watchdog timer built into the Intel 1026 Atom E6XX (TunnelCreek) processor. 1027 1028 To compile this driver as a module, choose M here: the 1029 module will be called ie6xx_wdt. 1030 1031config INTEL_SCU_WATCHDOG 1032 bool "Intel SCU Watchdog for Mobile Platforms" 1033 depends on X86_INTEL_MID 1034 ---help--- 1035 Hardware driver for the watchdog time built into the Intel SCU 1036 for Intel Mobile Platforms. 1037 1038 To compile this driver as a module, choose M here. 1039 1040config INTEL_MID_WATCHDOG 1041 tristate "Intel MID Watchdog Timer" 1042 depends on X86_INTEL_MID 1043 select WATCHDOG_CORE 1044 ---help--- 1045 Watchdog timer driver built into the Intel SCU for Intel MID 1046 Platforms. 1047 1048 This driver currently supports only the watchdog evolution 1049 implementation in SCU, available for Merrifield generation. 1050 1051 To compile this driver as a module, choose M here. 1052 1053config ITCO_WDT 1054 tristate "Intel TCO Timer/Watchdog" 1055 depends on (X86 || IA64) && PCI 1056 select WATCHDOG_CORE 1057 depends on I2C || I2C=n 1058 select LPC_ICH if !EXPERT 1059 select I2C_I801 if !EXPERT && I2C 1060 ---help--- 1061 Hardware driver for the intel TCO timer based watchdog devices. 1062 These drivers are included in the Intel 82801 I/O Controller 1063 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1064 controller hub. 1065 1066 The TCO (Total Cost of Ownership) timer is a watchdog timer 1067 that will reboot the machine after its second expiration. The 1068 expiration time can be configured with the "heartbeat" parameter. 1069 1070 On some motherboards the driver may fail to reset the chipset's 1071 NO_REBOOT flag which prevents the watchdog from rebooting the 1072 machine. If this is the case you will get a kernel message like 1073 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1074 1075 To compile this driver as a module, choose M here: the 1076 module will be called iTCO_wdt. 1077 1078config ITCO_VENDOR_SUPPORT 1079 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1080 depends on ITCO_WDT 1081 ---help--- 1082 Add vendor specific support to the intel TCO timer based watchdog 1083 devices. At this moment we only have additional support for some 1084 SuperMicro Inc. motherboards. 1085 1086config IT8712F_WDT 1087 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1088 depends on X86 1089 ---help--- 1090 This is the driver for the built-in watchdog timer on the IT8712F 1091 Super I/0 chipset used on many motherboards. 1092 1093 If the driver does not work, then make sure that the game port in 1094 the BIOS is enabled. 1095 1096 To compile this driver as a module, choose M here: the 1097 module will be called it8712f_wdt. 1098 1099config IT87_WDT 1100 tristate "IT87 Watchdog Timer" 1101 depends on X86 1102 select WATCHDOG_CORE 1103 ---help--- 1104 This is the driver for the hardware watchdog on the ITE IT8607, 1105 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1106 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1107 IT8783 Super I/O chips. 1108 1109 This watchdog simply watches your kernel to make sure it doesn't 1110 freeze, and if it does, it reboots your computer after a certain 1111 amount of time. 1112 1113 To compile this driver as a module, choose M here: the module will 1114 be called it87_wdt. 1115 1116config HP_WATCHDOG 1117 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1118 depends on X86 && PCI 1119 help 1120 A software monitoring watchdog and NMI sourcing driver. This driver 1121 will detect lockups and provide a stack trace. This is a driver that 1122 will only load on an HP ProLiant system with a minimum of iLO2 support. 1123 To compile this driver as a module, choose M here: the module will be 1124 called hpwdt. 1125 1126config KEMPLD_WDT 1127 tristate "Kontron COM Watchdog Timer" 1128 depends on MFD_KEMPLD 1129 select WATCHDOG_CORE 1130 help 1131 Support for the PLD watchdog on some Kontron ETX and COMexpress 1132 (ETXexpress) modules 1133 1134 This driver can also be built as a module. If so, the module will be 1135 called kempld_wdt. 1136 1137config HPWDT_NMI_DECODING 1138 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1139 depends on HP_WATCHDOG 1140 default y 1141 help 1142 When an NMI occurs this feature will make the necessary BIOS calls to 1143 log the cause of the NMI. 1144 1145config SC1200_WDT 1146 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1147 depends on X86 1148 help 1149 This is a driver for National Semiconductor PC87307/PC97307 hardware 1150 watchdog cards as found on the SC1200. This watchdog is mainly used 1151 for power management purposes and can be used to power down the device 1152 during inactivity periods (includes interrupt activity monitoring). 1153 1154 To compile this driver as a module, choose M here: the 1155 module will be called sc1200wdt. 1156 1157 Most people will say N. 1158 1159config SCx200_WDT 1160 tristate "National Semiconductor SCx200 Watchdog" 1161 depends on SCx200 && PCI 1162 help 1163 Enable the built-in watchdog timer support on the National 1164 Semiconductor SCx200 processors. 1165 1166 If compiled as a module, it will be called scx200_wdt. 1167 1168config PC87413_WDT 1169 tristate "NS PC87413 watchdog" 1170 depends on X86 1171 ---help--- 1172 This is the driver for the hardware watchdog on the PC87413 chipset 1173 This watchdog simply watches your kernel to make sure it doesn't 1174 freeze, and if it does, it reboots your computer after a certain 1175 amount of time. 1176 1177 To compile this driver as a module, choose M here: the 1178 module will be called pc87413_wdt. 1179 1180 Most people will say N. 1181 1182config NV_TCO 1183 tristate "nVidia TCO Timer/Watchdog" 1184 depends on X86 && PCI 1185 ---help--- 1186 Hardware driver for the TCO timer built into the nVidia Hub family 1187 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1188 watchdog timer that will reboot the machine after its second 1189 expiration. The expiration time can be configured with the 1190 "heartbeat" parameter. 1191 1192 On some motherboards the driver may fail to reset the chipset's 1193 NO_REBOOT flag which prevents the watchdog from rebooting the 1194 machine. If this is the case you will get a kernel message like 1195 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1196 1197 To compile this driver as a module, choose M here: the 1198 module will be called nv_tco. 1199 1200config RDC321X_WDT 1201 tristate "RDC R-321x SoC watchdog" 1202 depends on X86_RDC321X || COMPILE_TEST 1203 depends on PCI 1204 help 1205 This is the driver for the built in hardware watchdog 1206 in the RDC R-321x SoC. 1207 1208 To compile this driver as a module, choose M here: the 1209 module will be called rdc321x_wdt. 1210 1211config 60XX_WDT 1212 tristate "SBC-60XX Watchdog Timer" 1213 depends on X86 1214 help 1215 This driver can be used with the watchdog timer found on some 1216 single board computers, namely the 6010 PII based computer. 1217 It may well work with other cards. It reads port 0x443 to enable 1218 and re-set the watchdog timer, and reads port 0x45 to disable 1219 the watchdog. If you have a card that behave in similar ways, 1220 you can probably make this driver work with your card as well. 1221 1222 You can compile this driver directly into the kernel, or use 1223 it as a module. The module will be called sbc60xxwdt. 1224 1225config SBC8360_WDT 1226 tristate "SBC8360 Watchdog Timer" 1227 depends on X86_32 1228 ---help--- 1229 1230 This is the driver for the hardware watchdog on the SBC8360 Single 1231 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1232 1233 To compile this driver as a module, choose M here: the 1234 module will be called sbc8360. 1235 1236 Most people will say N. 1237 1238config SBC7240_WDT 1239 tristate "SBC Nano 7240 Watchdog Timer" 1240 depends on X86_32 && !UML 1241 ---help--- 1242 This is the driver for the hardware watchdog found on the IEI 1243 single board computers EPIC Nano 7240 (and likely others). This 1244 watchdog simply watches your kernel to make sure it doesn't freeze, 1245 and if it does, it reboots your computer after a certain amount of 1246 time. 1247 1248 To compile this driver as a module, choose M here: the 1249 module will be called sbc7240_wdt. 1250 1251config CPU5_WDT 1252 tristate "SMA CPU5 Watchdog" 1253 depends on X86 1254 ---help--- 1255 TBD. 1256 To compile this driver as a module, choose M here: the 1257 module will be called cpu5wdt. 1258 1259config SMSC_SCH311X_WDT 1260 tristate "SMSC SCH311X Watchdog Timer" 1261 depends on X86 1262 ---help--- 1263 This is the driver for the hardware watchdog timer on the 1264 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1265 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1266 serial ports). 1267 1268 To compile this driver as a module, choose M here: the 1269 module will be called sch311x_wdt. 1270 1271config SMSC37B787_WDT 1272 tristate "Winbond SMsC37B787 Watchdog Timer" 1273 depends on X86 1274 ---help--- 1275 This is the driver for the hardware watchdog component on the 1276 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1277 from Vision Systems and maybe others. 1278 1279 This watchdog simply watches your kernel to make sure it doesn't 1280 freeze, and if it does, it reboots your computer after a certain 1281 amount of time. 1282 1283 Usually a userspace daemon will notify the kernel WDT driver that 1284 userspace is still alive, at regular intervals. 1285 1286 To compile this driver as a module, choose M here: the 1287 module will be called smsc37b787_wdt. 1288 1289 Most people will say N. 1290 1291config VIA_WDT 1292 tristate "VIA Watchdog Timer" 1293 depends on X86 && PCI 1294 select WATCHDOG_CORE 1295 ---help--- 1296 This is the driver for the hardware watchdog timer on VIA 1297 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1298 1299 To compile this driver as a module, choose M here; the module 1300 will be called via_wdt. 1301 1302 Most people will say N. 1303 1304config W83627HF_WDT 1305 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1306 depends on X86 1307 select WATCHDOG_CORE 1308 ---help--- 1309 This is the driver for the hardware watchdog on the following 1310 Super I/O chips. 1311 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1312 W83637HF 1313 W83667HG/HG-B 1314 W83687THF 1315 W83697HF 1316 W83697UG 1317 NCT6775 1318 NCT6776 1319 NCT6779 1320 NCT6791 1321 NCT6792 1322 NCT6102D/04D/06D 1323 1324 This watchdog simply watches your kernel to make sure it doesn't 1325 freeze, and if it does, it reboots your computer after a certain 1326 amount of time. 1327 1328 To compile this driver as a module, choose M here: the 1329 module will be called w83627hf_wdt. 1330 1331 Most people will say N. 1332 1333config W83877F_WDT 1334 tristate "W83877F (EMACS) Watchdog Timer" 1335 depends on X86 1336 ---help--- 1337 This is the driver for the hardware watchdog on the W83877F chipset 1338 as used in EMACS PC-104 motherboards (and likely others). This 1339 watchdog simply watches your kernel to make sure it doesn't freeze, 1340 and if it does, it reboots your computer after a certain amount of 1341 time. 1342 1343 To compile this driver as a module, choose M here: the 1344 module will be called w83877f_wdt. 1345 1346 Most people will say N. 1347 1348config W83977F_WDT 1349 tristate "W83977F (PCM-5335) Watchdog Timer" 1350 depends on X86 1351 ---help--- 1352 This is the driver for the hardware watchdog on the W83977F I/O chip 1353 as used in AAEON's PCM-5335 SBC (and likely others). This 1354 watchdog simply watches your kernel to make sure it doesn't freeze, 1355 and if it does, it reboots your computer after a certain amount of 1356 time. 1357 1358 To compile this driver as a module, choose M here: the 1359 module will be called w83977f_wdt. 1360 1361config MACHZ_WDT 1362 tristate "ZF MachZ Watchdog" 1363 depends on X86 1364 ---help--- 1365 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1366 N. This is the driver for the watchdog timer built-in on that 1367 processor using ZF-Logic interface. This watchdog simply watches 1368 your kernel to make sure it doesn't freeze, and if it does, it 1369 reboots your computer after a certain amount of time. 1370 1371 To compile this driver as a module, choose M here: the 1372 module will be called machzwd. 1373 1374config SBC_EPX_C3_WATCHDOG 1375 tristate "Winsystems SBC EPX-C3 watchdog" 1376 depends on X86 1377 ---help--- 1378 This is the driver for the built-in watchdog timer on the EPX-C3 1379 Single-board computer made by Winsystems, Inc. 1380 1381 *Note*: This hardware watchdog is not probeable and thus there 1382 is no way to know if writing to its IO address will corrupt 1383 your system or have any real effect. The only way to be sure 1384 that this driver does what you want is to make sure you 1385 are running it on an EPX-C3 from Winsystems with the watchdog 1386 timer at IO address 0x1ee and 0x1ef. It will write to both those 1387 IO ports. Basically, the assumption is made that if you compile 1388 this driver into your kernel and/or load it as a module, that you 1389 know what you are doing and that you are in fact running on an 1390 EPX-C3 board! 1391 1392 To compile this driver as a module, choose M here: the 1393 module will be called sbc_epx_c3. 1394 1395config INTEL_MEI_WDT 1396 tristate "Intel MEI iAMT Watchdog" 1397 depends on INTEL_MEI && X86 1398 select WATCHDOG_CORE 1399 ---help--- 1400 A device driver for the Intel MEI iAMT watchdog. 1401 1402 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1403 Whenever the OS hangs or crashes, iAMT will send an event 1404 to any subscriber to this event. The watchdog doesn't reset the 1405 the platform. 1406 1407 To compile this driver as a module, choose M here: 1408 the module will be called mei_wdt. 1409 1410config NI903X_WDT 1411 tristate "NI 903x/913x Watchdog" 1412 depends on X86 && ACPI 1413 select WATCHDOG_CORE 1414 ---help--- 1415 This is the driver for the watchdog timer on the National Instruments 1416 903x/913x real-time controllers. 1417 1418 To compile this driver as a module, choose M here: the module will be 1419 called ni903x_wdt. 1420 1421config NIC7018_WDT 1422 tristate "NIC7018 Watchdog" 1423 depends on X86 && ACPI 1424 select WATCHDOG_CORE 1425 ---help--- 1426 Support for National Instruments NIC7018 Watchdog. 1427 1428 To compile this driver as a module, choose M here: the module will be 1429 called nic7018_wdt. 1430 1431# M32R Architecture 1432 1433# M68K Architecture 1434 1435config M54xx_WATCHDOG 1436 tristate "MCF54xx watchdog support" 1437 depends on M548x 1438 help 1439 To compile this driver as a module, choose M here: the 1440 module will be called m54xx_wdt. 1441 1442# MicroBlaze Architecture 1443 1444# MIPS Architecture 1445 1446config ATH79_WDT 1447 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1448 depends on ATH79 || (ARM && COMPILE_TEST) 1449 help 1450 Hardware driver for the built-in watchdog timer on the Atheros 1451 AR71XX/AR724X/AR913X SoCs. 1452 1453config BCM47XX_WDT 1454 tristate "Broadcom BCM47xx Watchdog Timer" 1455 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1456 select WATCHDOG_CORE 1457 help 1458 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1459 1460config RC32434_WDT 1461 tristate "IDT RC32434 SoC Watchdog Timer" 1462 depends on MIKROTIK_RB532 1463 help 1464 Hardware driver for the IDT RC32434 SoC built-in 1465 watchdog timer. 1466 1467 To compile this driver as a module, choose M here: the 1468 module will be called rc32434_wdt. 1469 1470config INDYDOG 1471 tristate "Indy/I2 Hardware Watchdog" 1472 depends on SGI_HAS_INDYDOG 1473 help 1474 Hardware driver for the Indy's/I2's watchdog. This is a 1475 watchdog timer that will reboot the machine after a 60 second 1476 timer expired and no process has written to /dev/watchdog during 1477 that time. 1478 1479config JZ4740_WDT 1480 tristate "Ingenic jz4740 SoC hardware watchdog" 1481 depends on MACH_JZ4740 || MACH_JZ4780 1482 select WATCHDOG_CORE 1483 help 1484 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1485 1486config WDT_MTX1 1487 tristate "MTX-1 Hardware Watchdog" 1488 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1489 help 1490 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1491 will reboot the machine after a 100 seconds timer expired. 1492 1493config PNX833X_WDT 1494 tristate "PNX833x Hardware Watchdog" 1495 depends on SOC_PNX8335 1496 depends on BROKEN 1497 help 1498 Hardware driver for the PNX833x's watchdog. This is a 1499 watchdog timer that will reboot the machine after a programmable 1500 timer has expired and no process has written to /dev/watchdog during 1501 that time. 1502 1503config SIBYTE_WDOG 1504 tristate "Sibyte SoC hardware watchdog" 1505 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1506 help 1507 Watchdog driver for the built in watchdog hardware in Sibyte 1508 SoC processors. There are apparently two watchdog timers 1509 on such processors; this driver supports only the first one, 1510 because currently Linux only supports exporting one watchdog 1511 to userspace. 1512 1513 To compile this driver as a loadable module, choose M here. 1514 The module will be called sb_wdog. 1515 1516config AR7_WDT 1517 tristate "TI AR7 Watchdog Timer" 1518 depends on AR7 || (MIPS && COMPILE_TEST) 1519 help 1520 Hardware driver for the TI AR7 Watchdog Timer. 1521 1522config TXX9_WDT 1523 tristate "Toshiba TXx9 Watchdog Timer" 1524 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1525 select WATCHDOG_CORE 1526 help 1527 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1528 1529config OCTEON_WDT 1530 tristate "Cavium OCTEON SOC family Watchdog Timer" 1531 depends on CAVIUM_OCTEON_SOC 1532 default y 1533 select WATCHDOG_CORE 1534 select EXPORT_UASM if OCTEON_WDT = m 1535 help 1536 Hardware driver for OCTEON's on chip watchdog timer. 1537 Enables the watchdog for all cores running Linux. It 1538 installs a NMI handler and pokes the watchdog based on an 1539 interrupt. On first expiration of the watchdog, the 1540 interrupt handler pokes it. The second expiration causes an 1541 NMI that prints a message. The third expiration causes a 1542 global soft reset. 1543 1544 When userspace has /dev/watchdog open, no poking is done 1545 from the first interrupt, it is then only poked when the 1546 device is written. 1547 1548config BCM63XX_WDT 1549 tristate "Broadcom BCM63xx hardware watchdog" 1550 depends on BCM63XX 1551 help 1552 Watchdog driver for the built in watchdog hardware in Broadcom 1553 BCM63xx SoC. 1554 1555 To compile this driver as a loadable module, choose M here. 1556 The module will be called bcm63xx_wdt. 1557 1558config BCM2835_WDT 1559 tristate "Broadcom BCM2835 hardware watchdog" 1560 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1561 select WATCHDOG_CORE 1562 help 1563 Watchdog driver for the built in watchdog hardware in Broadcom 1564 BCM2835 SoC. 1565 1566 To compile this driver as a loadable module, choose M here. 1567 The module will be called bcm2835_wdt. 1568 1569config BCM_KONA_WDT 1570 tristate "BCM Kona Watchdog" 1571 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1572 select WATCHDOG_CORE 1573 help 1574 Support for the watchdog timer on the following Broadcom BCM281xx 1575 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1576 BCM28155 variants. 1577 1578 Say 'Y' or 'M' here to enable the driver. The module will be called 1579 bcm_kona_wdt. 1580 1581config BCM_KONA_WDT_DEBUG 1582 bool "DEBUGFS support for BCM Kona Watchdog" 1583 depends on BCM_KONA_WDT || COMPILE_TEST 1584 help 1585 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1586 access to the driver's internal data structures as well as watchdog 1587 timer hardware registres. 1588 1589 If in doubt, say 'N'. 1590 1591config BCM7038_WDT 1592 tristate "BCM7038 Watchdog" 1593 select WATCHDOG_CORE 1594 depends on HAS_IOMEM 1595 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1596 help 1597 Watchdog driver for the built-in hardware in Broadcom 7038 and 1598 later SoCs used in set-top boxes. BCM7038 was made public 1599 during the 2004 CES, and since then, many Broadcom chips use this 1600 watchdog block, including some cable modem chips. 1601 1602config IMGPDC_WDT 1603 tristate "Imagination Technologies PDC Watchdog Timer" 1604 depends on HAS_IOMEM 1605 depends on METAG || MIPS || COMPILE_TEST 1606 select WATCHDOG_CORE 1607 help 1608 Driver for Imagination Technologies PowerDown Controller 1609 Watchdog Timer. 1610 1611 To compile this driver as a loadable module, choose M here. 1612 The module will be called imgpdc_wdt. 1613 1614config LANTIQ_WDT 1615 tristate "Lantiq SoC watchdog" 1616 depends on LANTIQ 1617 help 1618 Hardware driver for the Lantiq SoC Watchdog Timer. 1619 1620config LOONGSON1_WDT 1621 tristate "Loongson1 SoC hardware watchdog" 1622 depends on MACH_LOONGSON32 1623 select WATCHDOG_CORE 1624 help 1625 Hardware driver for the Loongson1 SoC Watchdog Timer. 1626 1627config RALINK_WDT 1628 tristate "Ralink SoC watchdog" 1629 select WATCHDOG_CORE 1630 depends on RALINK 1631 help 1632 Hardware driver for the Ralink SoC Watchdog Timer. 1633 1634config MT7621_WDT 1635 tristate "Mediatek SoC watchdog" 1636 select WATCHDOG_CORE 1637 depends on SOC_MT7620 || SOC_MT7621 1638 help 1639 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1640 1641config PIC32_WDT 1642 tristate "Microchip PIC32 hardware watchdog" 1643 select WATCHDOG_CORE 1644 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1645 help 1646 Watchdog driver for the built in watchdog hardware in a PIC32. 1647 1648 Configuration bits must be set appropriately for the watchdog to be 1649 controlled by this driver. 1650 1651 To compile this driver as a loadable module, choose M here. 1652 The module will be called pic32-wdt. 1653 1654config PIC32_DMT 1655 tristate "Microchip PIC32 Deadman Timer" 1656 select WATCHDOG_CORE 1657 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1658 help 1659 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1660 timer is typically be used in misson critical and safety critical 1661 applications, where any single failure of the software functionality 1662 and sequencing must be detected. 1663 1664 To compile this driver as a loadable module, choose M here. 1665 The module will be called pic32-dmt. 1666 1667# PARISC Architecture 1668 1669# POWERPC Architecture 1670 1671config GEF_WDT 1672 tristate "GE Watchdog Timer" 1673 depends on GE_FPGA 1674 ---help--- 1675 Watchdog timer found in a number of GE single board computers. 1676 1677config MPC5200_WDT 1678 bool "MPC52xx Watchdog Timer" 1679 depends on PPC_MPC52xx || COMPILE_TEST 1680 help 1681 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1682 1683config 8xxx_WDT 1684 tristate "MPC8xxx Platform Watchdog Timer" 1685 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1686 select WATCHDOG_CORE 1687 help 1688 This driver is for a SoC level watchdog that exists on some 1689 Freescale PowerPC processors. So far this driver supports: 1690 - MPC8xx watchdogs 1691 - MPC83xx watchdogs 1692 - MPC86xx watchdogs 1693 1694 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1695 1696config MV64X60_WDT 1697 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1698 depends on MV64X60 || COMPILE_TEST 1699 1700config PIKA_WDT 1701 tristate "PIKA FPGA Watchdog" 1702 depends on WARP || (PPC64 && COMPILE_TEST) 1703 default y 1704 help 1705 This enables the watchdog in the PIKA FPGA. Currently used on 1706 the Warp platform. 1707 1708config BOOKE_WDT 1709 tristate "PowerPC Book-E Watchdog Timer" 1710 depends on BOOKE || 4xx 1711 select WATCHDOG_CORE 1712 ---help--- 1713 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1714 MPC85xx SOCs and the IBM PowerPC 440. 1715 1716 Please see Documentation/watchdog/watchdog-api.txt for 1717 more information. 1718 1719config BOOKE_WDT_DEFAULT_TIMEOUT 1720 int "PowerPC Book-E Watchdog Timer Default Timeout" 1721 depends on BOOKE_WDT 1722 default 38 if PPC_FSL_BOOK3E 1723 range 0 63 if PPC_FSL_BOOK3E 1724 default 3 if !PPC_FSL_BOOK3E 1725 range 0 3 if !PPC_FSL_BOOK3E 1726 help 1727 Select the default watchdog timer period to be used by the PowerPC 1728 Book-E watchdog driver. A watchdog "event" occurs when the bit 1729 position represented by this number transitions from zero to one. 1730 1731 For Freescale Book-E processors, this is a number between 0 and 63. 1732 For other Book-E processors, this is a number between 0 and 3. 1733 1734 The value can be overridden by the wdt_period command-line parameter. 1735 1736config MEN_A21_WDT 1737 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1738 select WATCHDOG_CORE 1739 depends on GPIOLIB || COMPILE_TEST 1740 help 1741 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1742 1743 The driver can also be built as a module. If so, the module will be 1744 called mena21_wdt. 1745 1746 If unsure select N here. 1747 1748# PPC64 Architecture 1749 1750config WATCHDOG_RTAS 1751 tristate "RTAS watchdog" 1752 depends on PPC_RTAS 1753 help 1754 This driver adds watchdog support for the RTAS watchdog. 1755 1756 To compile this driver as a module, choose M here. The module 1757 will be called wdrtas. 1758 1759# S390 Architecture 1760 1761config DIAG288_WATCHDOG 1762 tristate "System z diag288 Watchdog" 1763 depends on S390 1764 select WATCHDOG_CORE 1765 help 1766 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1767 provide a virtual watchdog timer to their guest that cause a 1768 user define Control Program command to be executed after a 1769 timeout. 1770 LPAR provides a very similar interface. This driver handles 1771 both. 1772 1773 To compile this driver as a module, choose M here. The module 1774 will be called diag288_wdt. 1775 1776# SUPERH (sh + sh64) Architecture 1777 1778config SH_WDT 1779 tristate "SuperH Watchdog" 1780 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1781 select WATCHDOG_CORE 1782 help 1783 This driver adds watchdog support for the integrated watchdog in the 1784 SuperH processors. If you have one of these processors and wish 1785 to have watchdog support enabled, say Y, otherwise say N. 1786 1787 As a side note, saying Y here will automatically boost HZ to 1000 1788 so that the timer has a chance to clear the overflow counter. On 1789 slower systems (such as the SH-2 and SH-3) this will likely yield 1790 some performance issues. As such, the WDT should be avoided here 1791 unless it is absolutely necessary. 1792 1793 To compile this driver as a module, choose M here: the 1794 module will be called shwdt. 1795 1796# SPARC Architecture 1797 1798# SPARC64 Architecture 1799 1800config WATCHDOG_CP1XXX 1801 tristate "CP1XXX Hardware Watchdog support" 1802 depends on SPARC64 && PCI 1803 ---help--- 1804 This is the driver for the hardware watchdog timers present on 1805 Sun Microsystems CompactPCI models CP1400 and CP1500. 1806 1807 To compile this driver as a module, choose M here: the 1808 module will be called cpwatchdog. 1809 1810 If you do not have a CompactPCI model CP1400 or CP1500, or 1811 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1812 you should say N to this option. 1813 1814config WATCHDOG_RIO 1815 tristate "RIO Hardware Watchdog support" 1816 depends on SPARC64 && PCI 1817 help 1818 Say Y here to support the hardware watchdog capability on Sun RIO 1819 machines. The watchdog timeout period is normally one minute but 1820 can be changed with a boot-time parameter. 1821 1822config WATCHDOG_SUN4V 1823 tristate "Sun4v Watchdog support" 1824 select WATCHDOG_CORE 1825 depends on SPARC64 1826 help 1827 Say Y here to support the hypervisor watchdog capability embedded 1828 in the SPARC sun4v architecture. 1829 1830 To compile this driver as a module, choose M here. The module will 1831 be called sun4v_wdt. 1832 1833# XTENSA Architecture 1834 1835# Xen Architecture 1836 1837config XEN_WDT 1838 tristate "Xen Watchdog support" 1839 depends on XEN 1840 help 1841 Say Y here to support the hypervisor watchdog capability provided 1842 by Xen 4.0 and newer. The watchdog timeout period is normally one 1843 minute but can be changed with a boot-time parameter. 1844 1845config UML_WATCHDOG 1846 tristate "UML watchdog" 1847 depends on UML || COMPILE_TEST 1848 1849# 1850# ISA-based Watchdog Cards 1851# 1852 1853comment "ISA-based Watchdog Cards" 1854 depends on ISA 1855 1856config PCWATCHDOG 1857 tristate "Berkshire Products ISA-PC Watchdog" 1858 depends on ISA 1859 ---help--- 1860 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1861 This card simply watches your kernel to make sure it doesn't freeze, 1862 and if it does, it reboots your computer after a certain amount of 1863 time. This driver is like the WDT501 driver but for different 1864 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1865 watchdog cards can be ordered from <http://www.berkprod.com/>. 1866 1867 To compile this driver as a module, choose M here: the 1868 module will be called pcwd. 1869 1870 Most people will say N. 1871 1872config MIXCOMWD 1873 tristate "Mixcom Watchdog" 1874 depends on ISA 1875 ---help--- 1876 This is a driver for the Mixcom hardware watchdog cards. This 1877 watchdog simply watches your kernel to make sure it doesn't freeze, 1878 and if it does, it reboots your computer after a certain amount of 1879 time. 1880 1881 To compile this driver as a module, choose M here: the 1882 module will be called mixcomwd. 1883 1884 Most people will say N. 1885 1886config WDT 1887 tristate "WDT Watchdog timer" 1888 depends on ISA 1889 ---help--- 1890 If you have a WDT500P or WDT501P watchdog board, say Y here, 1891 otherwise N. It is not possible to probe for this board, which means 1892 that you have to inform the kernel about the IO port and IRQ that 1893 is needed (you can do this via the io and irq parameters) 1894 1895 To compile this driver as a module, choose M here: the 1896 module will be called wdt. 1897 1898# 1899# PCI-based Watchdog Cards 1900# 1901 1902comment "PCI-based Watchdog Cards" 1903 depends on PCI 1904 1905config PCIPCWATCHDOG 1906 tristate "Berkshire Products PCI-PC Watchdog" 1907 depends on PCI 1908 ---help--- 1909 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1910 This card simply watches your kernel to make sure it doesn't freeze, 1911 and if it does, it reboots your computer after a certain amount of 1912 time. The card can also monitor the internal temperature of the PC. 1913 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1914 1915 To compile this driver as a module, choose M here: the 1916 module will be called pcwd_pci. 1917 1918 Most people will say N. 1919 1920config WDTPCI 1921 tristate "PCI-WDT500/501 Watchdog timer" 1922 depends on PCI 1923 ---help--- 1924 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1925 1926 If you have a PCI-WDT501 watchdog board then you can enable the 1927 temperature sensor by setting the type parameter to 501. 1928 1929 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1930 can do this via the tachometer parameter. Only do this if you have a 1931 fan tachometer actually set up. 1932 1933 To compile this driver as a module, choose M here: the 1934 module will be called wdt_pci. 1935 1936# 1937# USB-based Watchdog Cards 1938# 1939 1940comment "USB-based Watchdog Cards" 1941 depends on USB 1942 1943config USBPCWATCHDOG 1944 tristate "Berkshire Products USB-PC Watchdog" 1945 depends on USB 1946 ---help--- 1947 This is the driver for the Berkshire Products USB-PC Watchdog card. 1948 This card simply watches your kernel to make sure it doesn't freeze, 1949 and if it does, it reboots your computer after a certain amount of 1950 time. The card can also monitor the internal temperature of the PC. 1951 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1952 1953 To compile this driver as a module, choose M here: the 1954 module will be called pcwd_usb. 1955 1956 Most people will say N. 1957 1958comment "Watchdog Pretimeout Governors" 1959 1960config WATCHDOG_PRETIMEOUT_GOV 1961 bool "Enable watchdog pretimeout governors" 1962 help 1963 The option allows to select watchdog pretimeout governors. 1964 1965if WATCHDOG_PRETIMEOUT_GOV 1966 1967choice 1968 prompt "Default Watchdog Pretimeout Governor" 1969 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1970 help 1971 This option selects a default watchdog pretimeout governor. 1972 The governor takes its action, if a watchdog is capable 1973 to report a pretimeout event. 1974 1975config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 1976 bool "noop" 1977 select WATCHDOG_PRETIMEOUT_GOV_NOOP 1978 help 1979 Use noop watchdog pretimeout governor by default. If noop 1980 governor is selected by a user, write a short message to 1981 the kernel log buffer and don't do any system changes. 1982 1983config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1984 bool "panic" 1985 select WATCHDOG_PRETIMEOUT_GOV_PANIC 1986 help 1987 Use panic watchdog pretimeout governor by default, if 1988 a watchdog pretimeout event happens, consider that 1989 a watchdog feeder is dead and reboot is unavoidable. 1990 1991endchoice 1992 1993config WATCHDOG_PRETIMEOUT_GOV_NOOP 1994 tristate "Noop watchdog pretimeout governor" 1995 help 1996 Noop watchdog pretimeout governor, only an informational 1997 message is added to kernel log buffer. 1998 1999config WATCHDOG_PRETIMEOUT_GOV_PANIC 2000 tristate "Panic watchdog pretimeout governor" 2001 help 2002 Panic watchdog pretimeout governor, on watchdog pretimeout 2003 event put the kernel into panic. 2004 2005endif # WATCHDOG_PRETIMEOUT_GOV 2006 2007endif # WATCHDOG 2008