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_SYSFS 50 bool "Read different watchdog information through sysfs" 51 help 52 Say Y here if you want to enable watchdog device status read through 53 sysfs attributes. 54 55# 56# General Watchdog drivers 57# 58 59comment "Watchdog Device Drivers" 60 61# Architecture Independent 62 63config SOFT_WATCHDOG 64 tristate "Software watchdog" 65 select WATCHDOG_CORE 66 help 67 A software monitoring watchdog. This will fail to reboot your system 68 from some situations that the hardware watchdog will recover 69 from. Equally it's a lot cheaper to install. 70 71 To compile this driver as a module, choose M here: the 72 module will be called softdog. 73 74config SOFT_WATCHDOG_PRETIMEOUT 75 bool "Software watchdog pretimeout governor support" 76 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 77 help 78 Enable this if you want to use pretimeout governors with the software 79 watchdog. Be aware that governors might affect the watchdog because it 80 is purely software, e.g. the panic governor will stall it! 81 82config DA9052_WATCHDOG 83 tristate "Dialog DA9052 Watchdog" 84 depends on PMIC_DA9052 || COMPILE_TEST 85 select WATCHDOG_CORE 86 help 87 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 88 cause system reset. 89 90 Say Y here to include support for the DA9052 watchdog. 91 Alternatively say M to compile the driver as a module, 92 which will be called da9052_wdt. 93 94config DA9055_WATCHDOG 95 tristate "Dialog Semiconductor DA9055 Watchdog" 96 depends on MFD_DA9055 || COMPILE_TEST 97 select WATCHDOG_CORE 98 help 99 If you say yes here you get support for watchdog on the Dialog 100 Semiconductor DA9055 PMIC. 101 102 This driver can also be built as a module. If so, the module 103 will be called da9055_wdt. 104 105config DA9063_WATCHDOG 106 tristate "Dialog DA9063 Watchdog" 107 depends on MFD_DA9063 || COMPILE_TEST 108 select WATCHDOG_CORE 109 help 110 Support for the watchdog in the DA9063 PMIC. 111 112 This driver can be built as a module. The module name is da9063_wdt. 113 114config DA9062_WATCHDOG 115 tristate "Dialog DA9062/61 Watchdog" 116 depends on MFD_DA9062 || COMPILE_TEST 117 select WATCHDOG_CORE 118 help 119 Support for the watchdog in the DA9062 and DA9061 PMICs. 120 121 This driver can be built as a module. The module name is da9062_wdt. 122 123config GPIO_WATCHDOG 124 tristate "Watchdog device controlled through GPIO-line" 125 depends on OF_GPIO 126 select WATCHDOG_CORE 127 help 128 If you say yes here you get support for watchdog device 129 controlled through GPIO-line. 130 131config GPIO_WATCHDOG_ARCH_INITCALL 132 bool "Register the watchdog as early as possible" 133 depends on GPIO_WATCHDOG=y 134 help 135 In some situations, the default initcall level (module_init) 136 in not early enough in the boot process to avoid the watchdog 137 to be triggered. 138 If you say yes here, the initcall level would be raised to 139 arch_initcall. 140 If in doubt, say N. 141 142config MENF21BMC_WATCHDOG 143 tristate "MEN 14F021P00 BMC Watchdog" 144 depends on MFD_MENF21BMC || COMPILE_TEST 145 select WATCHDOG_CORE 146 help 147 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 148 149 This driver can also be built as a module. If so the module 150 will be called menf21bmc_wdt. 151 152config TANGOX_WATCHDOG 153 tristate "Sigma Designs SMP86xx/SMP87xx watchdog" 154 select WATCHDOG_CORE 155 depends on ARCH_TANGO || COMPILE_TEST 156 depends on HAS_IOMEM 157 help 158 Support for the watchdog in Sigma Designs SMP86xx (tango3) 159 and SMP87xx (tango4) family chips. 160 161 This driver can be built as a module. The module name is tangox_wdt. 162 163config WDAT_WDT 164 tristate "ACPI Watchdog Action Table (WDAT)" 165 depends on ACPI 166 select WATCHDOG_CORE 167 select ACPI_WATCHDOG 168 help 169 This driver adds support for systems with ACPI Watchdog Action 170 Table (WDAT) table. Servers typically have this but it can be 171 found on some desktop machines as well. This driver will take 172 over the native iTCO watchdog driver found on many Intel CPUs. 173 174 To compile this driver as module, choose M here: the module will 175 be called wdat_wdt. 176 177config WM831X_WATCHDOG 178 tristate "WM831x watchdog" 179 depends on MFD_WM831X || COMPILE_TEST 180 select WATCHDOG_CORE 181 help 182 Support for the watchdog in the WM831x AudioPlus PMICs. When 183 the watchdog triggers the system will be reset. 184 185config WM8350_WATCHDOG 186 tristate "WM8350 watchdog" 187 depends on MFD_WM8350 188 select WATCHDOG_CORE 189 help 190 Support for the watchdog in the WM8350 AudioPlus PMIC. When 191 the watchdog triggers the system will be reset. 192 193config XILINX_WATCHDOG 194 tristate "Xilinx Watchdog timer" 195 depends on HAS_IOMEM 196 select WATCHDOG_CORE 197 help 198 Watchdog driver for the xps_timebase_wdt ip core. 199 200 To compile this driver as a module, choose M here: the 201 module will be called of_xilinx_wdt. 202 203config ZIIRAVE_WATCHDOG 204 tristate "Zodiac RAVE Watchdog Timer" 205 depends on I2C 206 select WATCHDOG_CORE 207 help 208 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 209 Processor. 210 211 To compile this driver as a module, choose M here: the 212 module will be called ziirave_wdt. 213 214# ALPHA Architecture 215 216# ARM Architecture 217 218config ARM_SP805_WATCHDOG 219 tristate "ARM SP805 Watchdog" 220 depends on (ARM || ARM64) && (ARM_AMBA || COMPILE_TEST) 221 select WATCHDOG_CORE 222 help 223 ARM Primecell SP805 Watchdog timer. This will reboot your system when 224 the timeout is reached. 225 226config ARM_SBSA_WATCHDOG 227 tristate "ARM SBSA Generic Watchdog" 228 depends on ARM64 229 depends on ARM_ARCH_TIMER 230 select WATCHDOG_CORE 231 help 232 ARM SBSA Generic Watchdog has two stage timeouts: 233 the first signal (WS0) is for alerting the system by interrupt, 234 the second one (WS1) is a real hardware reset. 235 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 236 237 This driver can operate ARM SBSA Generic Watchdog as a single stage 238 or a two stages watchdog, it depends on the module parameter "action". 239 240 Note: the maximum timeout in the two stages mode is half of that in 241 the single stage mode. 242 243 To compile this driver as module, choose M here: The module 244 will be called sbsa_gwdt. 245 246config ASM9260_WATCHDOG 247 tristate "Alphascale ASM9260 watchdog" 248 depends on MACH_ASM9260 || COMPILE_TEST 249 depends on OF 250 select WATCHDOG_CORE 251 select RESET_CONTROLLER 252 help 253 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 254 system when the timeout is reached. 255 256config AT91RM9200_WATCHDOG 257 tristate "AT91RM9200 watchdog" 258 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 259 help 260 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 261 system when the timeout is reached. 262 263config AT91SAM9X_WATCHDOG 264 tristate "AT91SAM9X / AT91CAP9 watchdog" 265 depends on ARCH_AT91 || COMPILE_TEST 266 select WATCHDOG_CORE 267 help 268 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 269 reboot your system when the timeout is reached. 270 271config SAMA5D4_WATCHDOG 272 tristate "Atmel SAMA5D4 Watchdog Timer" 273 depends on ARCH_AT91 || COMPILE_TEST 274 select WATCHDOG_CORE 275 help 276 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 277 Its Watchdog Timer Mode Register can be written more than once. 278 This will reboot your system when the timeout is reached. 279 280config CADENCE_WATCHDOG 281 tristate "Cadence Watchdog Timer" 282 depends on HAS_IOMEM 283 select WATCHDOG_CORE 284 help 285 Say Y here if you want to include support for the watchdog 286 timer in the Xilinx Zynq. 287 288config 21285_WATCHDOG 289 tristate "DC21285 watchdog" 290 depends on FOOTBRIDGE 291 help 292 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 293 here if you wish to use this. Alternatively say M to compile the 294 driver as a module, which will be called wdt285. 295 296 This driver does not work on all machines. In particular, early CATS 297 boards have hardware problems that will cause the machine to simply 298 lock up if the watchdog fires. 299 300 "If in doubt, leave it out" - say N. 301 302config 977_WATCHDOG 303 tristate "NetWinder WB83C977 watchdog" 304 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 305 help 306 Say Y here to include support for the WB977 watchdog included in 307 NetWinder machines. Alternatively say M to compile the driver as 308 a module, which will be called wdt977. 309 310 Not sure? It's safe to say N. 311 312config GEMINI_WATCHDOG 313 tristate "Gemini watchdog" 314 depends on ARCH_GEMINI 315 select WATCHDOG_CORE 316 help 317 Say Y here if to include support for the watchdog timer 318 embedded in the Cortina Systems Gemini family of devices. 319 320 To compile this driver as a module, choose M here: the 321 module will be called gemini_wdt. 322 323config IXP4XX_WATCHDOG 324 tristate "IXP4xx Watchdog" 325 depends on ARCH_IXP4XX 326 help 327 Say Y here if to include support for the watchdog timer 328 in the Intel IXP4xx network processors. This driver can 329 be built as a module by choosing M. The module will 330 be called ixp4xx_wdt. 331 332 Note: The internal IXP4xx watchdog does a soft CPU reset 333 which doesn't reset any peripherals. There are circumstances 334 where the watchdog will fail to reset the board correctly 335 (e.g., if the boot ROM is in an unreadable state). 336 337 Say N if you are unsure. 338 339config KS8695_WATCHDOG 340 tristate "KS8695 watchdog" 341 depends on ARCH_KS8695 342 help 343 Watchdog timer embedded into KS8695 processor. This will reboot your 344 system when the timeout is reached. 345 346config HAVE_S3C2410_WATCHDOG 347 bool 348 help 349 This will include watchdog timer support for Samsung SoCs. If 350 you want to include watchdog support for any machine, kindly 351 select this in the respective mach-XXXX/Kconfig file. 352 353config S3C2410_WATCHDOG 354 tristate "S3C2410 Watchdog" 355 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST 356 select WATCHDOG_CORE 357 select MFD_SYSCON if ARCH_EXYNOS 358 help 359 Watchdog timer block in the Samsung SoCs. This will reboot 360 the system when the timer expires with the watchdog enabled. 361 362 The driver is limited by the speed of the system's PCLK 363 signal, so with reasonably fast systems (PCLK around 50-66MHz) 364 then watchdog intervals of over approximately 20seconds are 365 unavailable. 366 367 The driver can be built as a module by choosing M, and will 368 be called s3c2410_wdt 369 370config SA1100_WATCHDOG 371 tristate "SA1100/PXA2xx watchdog" 372 depends on ARCH_SA1100 || ARCH_PXA 373 help 374 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 375 reboot your system when timeout is reached. 376 377 NOTE: once enabled, this timer cannot be disabled. 378 379 To compile this driver as a module, choose M here: the 380 module will be called sa1100_wdt. 381 382config DW_WATCHDOG 383 tristate "Synopsys DesignWare watchdog" 384 depends on HAS_IOMEM 385 select WATCHDOG_CORE 386 help 387 Say Y here if to include support for the Synopsys DesignWare 388 watchdog timer found in many chips. 389 To compile this driver as a module, choose M here: the 390 module will be called dw_wdt. 391 392config EP93XX_WATCHDOG 393 tristate "EP93xx Watchdog" 394 depends on ARCH_EP93XX || COMPILE_TEST 395 select WATCHDOG_CORE 396 help 397 Say Y here if to include support for the watchdog timer 398 embedded in the Cirrus Logic EP93xx family of devices. 399 400 To compile this driver as a module, choose M here: the 401 module will be called ep93xx_wdt. 402 403config OMAP_WATCHDOG 404 tristate "OMAP Watchdog" 405 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 406 select WATCHDOG_CORE 407 help 408 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 409 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 410 411config PNX4008_WATCHDOG 412 tristate "LPC32XX Watchdog" 413 depends on ARCH_LPC32XX 414 select WATCHDOG_CORE 415 help 416 Say Y here if to include support for the watchdog timer 417 in the LPC32XX processor. 418 This driver can be built as a module by choosing M. The module 419 will be called pnx4008_wdt. 420 421 Say N if you are unsure. 422 423config IOP_WATCHDOG 424 tristate "IOP Watchdog" 425 depends on ARCH_IOP13XX 426 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 427 help 428 Say Y here if to include support for the watchdog timer 429 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 430 be built as a module by choosing M. The module will 431 be called iop_wdt. 432 433 Note: The IOP13XX watchdog does an Internal Bus Reset which will 434 affect both cores and the peripherals of the IOP. The ATU-X 435 and/or ATUe configuration registers will remain intact, but if 436 operating as an Root Complex and/or Central Resource, the PCI-X 437 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 438 439config DAVINCI_WATCHDOG 440 tristate "DaVinci watchdog" 441 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 442 select WATCHDOG_CORE 443 help 444 Say Y here if to include support for the watchdog timer 445 in the DaVinci DM644x/DM646x or Keystone processors. 446 To compile this driver as a module, choose M here: the 447 module will be called davinci_wdt. 448 449 NOTE: once enabled, this timer cannot be disabled. 450 Say N if you are unsure. 451 452config ORION_WATCHDOG 453 tristate "Orion watchdog" 454 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 455 depends on ARM 456 select WATCHDOG_CORE 457 help 458 Say Y here if to include support for the watchdog timer 459 in the Marvell Orion5x and Kirkwood ARM SoCs. 460 To compile this driver as a module, choose M here: the 461 module will be called orion_wdt. 462 463config RN5T618_WATCHDOG 464 tristate "Ricoh RN5T618 watchdog" 465 depends on MFD_RN5T618 || COMPILE_TEST 466 select WATCHDOG_CORE 467 help 468 If you say yes here you get support for watchdog on the Ricoh 469 RN5T618 PMIC. 470 471 This driver can also be built as a module. If so, the module 472 will be called rn5t618_wdt. 473 474config SUNXI_WATCHDOG 475 tristate "Allwinner SoCs watchdog support" 476 depends on ARCH_SUNXI || COMPILE_TEST 477 select WATCHDOG_CORE 478 help 479 Say Y here to include support for the watchdog timer 480 in Allwinner SoCs. 481 To compile this driver as a module, choose M here: the 482 module will be called sunxi_wdt. 483 484config COH901327_WATCHDOG 485 bool "ST-Ericsson COH 901 327 watchdog" 486 depends on ARCH_U300 || (ARM && COMPILE_TEST) 487 default y if MACH_U300 488 select WATCHDOG_CORE 489 help 490 Say Y here to include Watchdog timer support for the 491 watchdog embedded into the ST-Ericsson U300 series platforms. 492 This watchdog is used to reset the system and thus cannot be 493 compiled as a module. 494 495config TWL4030_WATCHDOG 496 tristate "TWL4030 Watchdog" 497 depends on TWL4030_CORE 498 select WATCHDOG_CORE 499 help 500 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 501 watchdog timer support for TWL4030 chips. 502 503config STMP3XXX_RTC_WATCHDOG 504 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 505 depends on RTC_DRV_STMP || COMPILE_TEST 506 select WATCHDOG_CORE 507 help 508 Say Y here to include support for the watchdog timer inside 509 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 510 To compile this driver as a module, choose M here: the 511 module will be called stmp3xxx_rtc_wdt. 512 513config NUC900_WATCHDOG 514 tristate "Nuvoton NUC900 watchdog" 515 depends on ARCH_W90X900 || COMPILE_TEST 516 help 517 Say Y here if to include support for the watchdog timer 518 for the Nuvoton NUC900 series SoCs. 519 To compile this driver as a module, choose M here: the 520 module will be called nuc900_wdt. 521 522config TS4800_WATCHDOG 523 tristate "TS-4800 Watchdog" 524 depends on HAS_IOMEM && OF 525 depends on SOC_IMX51 || COMPILE_TEST 526 select WATCHDOG_CORE 527 select MFD_SYSCON 528 help 529 Technologic Systems TS-4800 has watchdog timer implemented in 530 an external FPGA. Say Y here if you want to support for the 531 watchdog timer on TS-4800 board. 532 533config TS72XX_WATCHDOG 534 tristate "TS-72XX SBC Watchdog" 535 depends on MACH_TS72XX || COMPILE_TEST 536 help 537 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 538 watchdog timer implemented in a external CPLD chip. Say Y here 539 if you want to support for the watchdog timer on TS-72XX boards. 540 541 To compile this driver as a module, choose M here: the 542 module will be called ts72xx_wdt. 543 544config MAX63XX_WATCHDOG 545 tristate "Max63xx watchdog" 546 depends on HAS_IOMEM 547 select WATCHDOG_CORE 548 help 549 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 550 551config MAX77620_WATCHDOG 552 tristate "Maxim Max77620 Watchdog Timer" 553 depends on MFD_MAX77620 || COMPILE_TEST 554 help 555 This is the driver for the Max77620 watchdog timer. 556 Say 'Y' here to enable the watchdog timer support for 557 MAX77620 chips. To compile this driver as a module, 558 choose M here: the module will be called max77620_wdt. 559 560config IMX2_WDT 561 tristate "IMX2+ Watchdog" 562 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 563 select REGMAP_MMIO 564 select WATCHDOG_CORE 565 help 566 This is the driver for the hardware watchdog 567 on the Freescale IMX2 and later processors. 568 If you have one of these processors and wish to have 569 watchdog support enabled, say Y, otherwise say N. 570 571 To compile this driver as a module, choose M here: the 572 module will be called imx2_wdt. 573 574config UX500_WATCHDOG 575 tristate "ST-Ericsson Ux500 watchdog" 576 depends on MFD_DB8500_PRCMU || (ARM && COMPILE_TEST) 577 select WATCHDOG_CORE 578 default y 579 help 580 Say Y here to include Watchdog timer support for the watchdog 581 existing in the prcmu of ST-Ericsson Ux500 series platforms. 582 583 To compile this driver as a module, choose M here: the 584 module will be called ux500_wdt. 585 586config RETU_WATCHDOG 587 tristate "Retu watchdog" 588 depends on MFD_RETU || COMPILE_TEST 589 select WATCHDOG_CORE 590 help 591 Retu watchdog driver for Nokia Internet Tablets (770, N800, 592 N810). At least on N800 the watchdog cannot be disabled, so 593 this driver is essential and you should enable it. 594 595 To compile this driver as a module, choose M here: the 596 module will be called retu_wdt. 597 598config MOXART_WDT 599 tristate "MOXART watchdog" 600 depends on ARCH_MOXART || COMPILE_TEST 601 help 602 Say Y here to include Watchdog timer support for the watchdog 603 existing on the MOXA ART SoC series platforms. 604 605 To compile this driver as a module, choose M here: the 606 module will be called moxart_wdt. 607 608config SIRFSOC_WATCHDOG 609 tristate "SiRFSOC watchdog" 610 depends on ARCH_SIRF || COMPILE_TEST 611 select WATCHDOG_CORE 612 default y 613 help 614 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 615 the watchdog triggers the system will be reset. 616 617config ST_LPC_WATCHDOG 618 tristate "STMicroelectronics LPC Watchdog" 619 depends on ARCH_STI || COMPILE_TEST 620 depends on OF 621 select WATCHDOG_CORE 622 help 623 Say Y here to include STMicroelectronics Low Power Controller 624 (LPC) based Watchdog timer support. 625 626 To compile this driver as a module, choose M here: the 627 module will be called st_lpc_wdt. 628 629config TEGRA_WATCHDOG 630 tristate "Tegra watchdog" 631 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 632 select WATCHDOG_CORE 633 help 634 Say Y here to include support for the watchdog timer 635 embedded in NVIDIA Tegra SoCs. 636 637 To compile this driver as a module, choose M here: the 638 module will be called tegra_wdt. 639 640config QCOM_WDT 641 tristate "QCOM watchdog" 642 depends on HAS_IOMEM 643 depends on ARCH_QCOM || COMPILE_TEST 644 select WATCHDOG_CORE 645 help 646 Say Y here to include Watchdog timer support for the watchdog found 647 on QCOM chipsets. Currently supported targets are the MSM8960, 648 APQ8064, and IPQ8064. 649 650 To compile this driver as a module, choose M here: the 651 module will be called qcom_wdt. 652 653config MESON_GXBB_WATCHDOG 654 tristate "Amlogic Meson GXBB SoCs watchdog support" 655 depends on ARCH_MESON || COMPILE_TEST 656 select WATCHDOG_CORE 657 help 658 Say Y here to include support for the watchdog timer 659 in Amlogic Meson GXBB SoCs. 660 To compile this driver as a module, choose M here: the 661 module will be called meson_gxbb_wdt. 662 663config MESON_WATCHDOG 664 tristate "Amlogic Meson SoCs watchdog support" 665 depends on ARCH_MESON || COMPILE_TEST 666 select WATCHDOG_CORE 667 help 668 Say Y here to include support for the watchdog timer 669 in Amlogic Meson SoCs. 670 To compile this driver as a module, choose M here: the 671 module will be called meson_wdt. 672 673config MEDIATEK_WATCHDOG 674 tristate "Mediatek SoCs watchdog support" 675 depends on ARCH_MEDIATEK || COMPILE_TEST 676 select WATCHDOG_CORE 677 help 678 Say Y here to include support for the watchdog timer 679 in Mediatek SoCs. 680 To compile this driver as a module, choose M here: the 681 module will be called mtk_wdt. 682 683config DIGICOLOR_WATCHDOG 684 tristate "Conexant Digicolor SoCs watchdog support" 685 depends on ARCH_DIGICOLOR || COMPILE_TEST 686 select WATCHDOG_CORE 687 help 688 Say Y here to include support for the watchdog timer 689 in Conexant Digicolor SoCs. 690 To compile this driver as a module, choose M here: the 691 module will be called digicolor_wdt. 692 693config LPC18XX_WATCHDOG 694 tristate "LPC18xx/43xx Watchdog" 695 depends on ARCH_LPC18XX || COMPILE_TEST 696 depends on HAS_IOMEM 697 select WATCHDOG_CORE 698 help 699 Say Y here if to include support for the watchdog timer 700 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 701 processors. 702 To compile this driver as a module, choose M here: the 703 module will be called lpc18xx_wdt. 704 705config ATLAS7_WATCHDOG 706 tristate "CSRatlas7 watchdog" 707 depends on ARCH_ATLAS7 || COMPILE_TEST 708 help 709 Say Y here to include Watchdog timer support for the watchdog 710 existing on the CSRatlas7 series platforms. 711 712 To compile this driver as a module, choose M here: the 713 module will be called atlas7_wdt. 714 715config RENESAS_WDT 716 tristate "Renesas WDT Watchdog" 717 depends on ARCH_RENESAS || COMPILE_TEST 718 select WATCHDOG_CORE 719 help 720 This driver adds watchdog support for the integrated watchdogs in the 721 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 722 723config ASPEED_WATCHDOG 724 tristate "Aspeed 2400 watchdog support" 725 depends on ARCH_ASPEED || COMPILE_TEST 726 select WATCHDOG_CORE 727 help 728 Say Y here to include support for the watchdog timer 729 in Apseed BMC SoCs. 730 731 This driver is required to reboot the SoC. 732 733 To compile this driver as a module, choose M here: the 734 module will be called aspeed_wdt. 735 736config ZX2967_WATCHDOG 737 tristate "ZTE zx2967 SoCs watchdog support" 738 depends on ARCH_ZX 739 select WATCHDOG_CORE 740 help 741 Say Y here to include support for the watchdog timer 742 in ZTE zx2967 SoCs. 743 To compile this driver as a module, choose M here: the 744 module will be called zx2967_wdt. 745 746# AVR32 Architecture 747 748config AT32AP700X_WDT 749 tristate "AT32AP700x watchdog" 750 depends on CPU_AT32AP700X || COMPILE_TEST 751 help 752 Watchdog timer embedded into AT32AP700x devices. This will reboot 753 your system when the timeout is reached. 754 755# BLACKFIN Architecture 756 757config BFIN_WDT 758 tristate "Blackfin On-Chip Watchdog Timer" 759 depends on BLACKFIN 760 ---help--- 761 If you say yes here you will get support for the Blackfin On-Chip 762 Watchdog Timer. If you have one of these processors and wish to 763 have watchdog support enabled, say Y, otherwise say N. 764 765 To compile this driver as a module, choose M here: the 766 module will be called bfin_wdt. 767 768# CRIS Architecture 769 770# FRV Architecture 771 772# X86 (i386 + ia64 + x86_64) Architecture 773 774config ACQUIRE_WDT 775 tristate "Acquire SBC Watchdog Timer" 776 depends on X86 777 ---help--- 778 This is the driver for the hardware watchdog on Single Board 779 Computers produced by Acquire Inc (and others). This watchdog 780 simply watches your kernel to make sure it doesn't freeze, and if 781 it does, it reboots your computer after a certain amount of time. 782 783 To compile this driver as a module, choose M here: the 784 module will be called acquirewdt. 785 786 Most people will say N. 787 788config ADVANTECH_WDT 789 tristate "Advantech SBC Watchdog Timer" 790 depends on X86 791 help 792 If you are configuring a Linux kernel for the Advantech single-board 793 computer, say `Y' here to support its built-in watchdog timer 794 feature. More information can be found at 795 <http://www.advantech.com.tw/products/> 796 797config ALIM1535_WDT 798 tristate "ALi M1535 PMU Watchdog Timer" 799 depends on X86 && PCI 800 ---help--- 801 This is the driver for the hardware watchdog on the ALi M1535 PMU. 802 803 To compile this driver as a module, choose M here: the 804 module will be called alim1535_wdt. 805 806 Most people will say N. 807 808config ALIM7101_WDT 809 tristate "ALi M7101 PMU Computer Watchdog" 810 depends on PCI 811 help 812 This is the driver for the hardware watchdog on the ALi M7101 PMU 813 as used in the x86 Cobalt servers and also found in some 814 SPARC Netra servers too. 815 816 To compile this driver as a module, choose M here: the 817 module will be called alim7101_wdt. 818 819 Most people will say N. 820 821config EBC_C384_WDT 822 tristate "WinSystems EBC-C384 Watchdog Timer" 823 depends on X86 && ISA_BUS_API 824 select WATCHDOG_CORE 825 help 826 Enables watchdog timer support for the watchdog timer on the 827 WinSystems EBC-C384 motherboard. The timeout may be configured via 828 the timeout module parameter. 829 830config F71808E_WDT 831 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog" 832 depends on X86 833 help 834 This is the driver for the hardware watchdog on the Fintek 835 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers. 836 837 You can compile this driver directly into the kernel, or use 838 it as a module. The module will be called f71808e_wdt. 839 840config SP5100_TCO 841 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 842 depends on X86 && PCI 843 ---help--- 844 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 845 (Total Cost of Ownership) timer is a watchdog timer that will reboot 846 the machine after its expiration. The expiration time can be 847 configured with the "heartbeat" parameter. 848 849 To compile this driver as a module, choose M here: the 850 module will be called sp5100_tco. 851 852config GEODE_WDT 853 tristate "AMD Geode CS5535/CS5536 Watchdog" 854 depends on CS5535_MFGPT || (X86 && COMPILE_TEST) 855 help 856 This driver enables a watchdog capability built into the 857 CS5535/CS5536 companion chips for the AMD Geode GX and LX 858 processors. This watchdog watches your kernel to make sure 859 it doesn't freeze, and if it does, it reboots your computer after 860 a certain amount of time. 861 862 You can compile this driver directly into the kernel, or use 863 it as a module. The module will be called geodewdt. 864 865config SC520_WDT 866 tristate "AMD Elan SC520 processor Watchdog" 867 depends on MELAN || COMPILE_TEST 868 help 869 This is the driver for the hardware watchdog built in to the 870 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 871 This watchdog simply watches your kernel to make sure it doesn't 872 freeze, and if it does, it reboots your computer after a certain 873 amount of time. 874 875 You can compile this driver directly into the kernel, or use 876 it as a module. The module will be called sc520_wdt. 877 878config SBC_FITPC2_WATCHDOG 879 tristate "Compulab SBC-FITPC2 watchdog" 880 depends on X86 881 ---help--- 882 This is the driver for the built-in watchdog timer on the fit-PC2, 883 fit-PC2i, CM-iAM single-board computers made by Compulab. 884 885 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 886 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 887 888 Entering BIOS setup temporary disables watchdog operation regardless to current state, 889 so system will not be restarted while user in BIOS setup. 890 891 Once watchdog was enabled the system will be restarted every 892 "Watchdog Timer Value" period, so to prevent it user can restart or 893 disable the watchdog. 894 895 To compile this driver as a module, choose M here: the 896 module will be called sbc_fitpc2_wdt. 897 898 Most people will say N. 899 900config EUROTECH_WDT 901 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 902 depends on X86 903 help 904 Enable support for the watchdog timer on the Eurotech CPU-1220 and 905 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 906 information are at <http://www.eurotech.it/>. 907 908config IB700_WDT 909 tristate "IB700 SBC Watchdog Timer" 910 depends on X86 911 ---help--- 912 This is the driver for the hardware watchdog on the IB700 Single 913 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 914 simply watches your kernel to make sure it doesn't freeze, and if 915 it does, it reboots your computer after a certain amount of time. 916 917 This driver is like the WDT501 driver but for slightly different hardware. 918 919 To compile this driver as a module, choose M here: the 920 module will be called ib700wdt. 921 922 Most people will say N. 923 924config IBMASR 925 tristate "IBM Automatic Server Restart" 926 depends on X86 927 help 928 This is the driver for the IBM Automatic Server Restart watchdog 929 timer built-in into some eServer xSeries machines. 930 931 To compile this driver as a module, choose M here: the 932 module will be called ibmasr. 933 934config WAFER_WDT 935 tristate "ICP Single Board Computer Watchdog Timer" 936 depends on X86 937 help 938 This is a driver for the hardware watchdog on the ICP Single 939 Board Computer. This driver is working on (at least) the following 940 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 941 942 To compile this driver as a module, choose M here: the 943 module will be called wafer5823wdt. 944 945config I6300ESB_WDT 946 tristate "Intel 6300ESB Timer/Watchdog" 947 depends on PCI 948 ---help--- 949 Hardware driver for the watchdog timer built into the Intel 950 6300ESB controller hub. 951 952 To compile this driver as a module, choose M here: the 953 module will be called i6300esb. 954 955config IE6XX_WDT 956 tristate "Intel Atom E6xx Watchdog" 957 depends on X86 && PCI 958 select WATCHDOG_CORE 959 select MFD_CORE 960 select LPC_SCH 961 ---help--- 962 Hardware driver for the watchdog timer built into the Intel 963 Atom E6XX (TunnelCreek) processor. 964 965 To compile this driver as a module, choose M here: the 966 module will be called ie6xx_wdt. 967 968config INTEL_SCU_WATCHDOG 969 bool "Intel SCU Watchdog for Mobile Platforms" 970 depends on X86_INTEL_MID 971 ---help--- 972 Hardware driver for the watchdog time built into the Intel SCU 973 for Intel Mobile Platforms. 974 975 To compile this driver as a module, choose M here. 976 977config INTEL_MID_WATCHDOG 978 tristate "Intel MID Watchdog Timer" 979 depends on X86_INTEL_MID 980 select WATCHDOG_CORE 981 ---help--- 982 Watchdog timer driver built into the Intel SCU for Intel MID 983 Platforms. 984 985 This driver currently supports only the watchdog evolution 986 implementation in SCU, available for Merrifield generation. 987 988 To compile this driver as a module, choose M here. 989 990config ITCO_WDT 991 tristate "Intel TCO Timer/Watchdog" 992 depends on (X86 || IA64) && PCI 993 select WATCHDOG_CORE 994 depends on I2C || I2C=n 995 select LPC_ICH if !EXPERT 996 select I2C_I801 if !EXPERT && I2C 997 ---help--- 998 Hardware driver for the intel TCO timer based watchdog devices. 999 These drivers are included in the Intel 82801 I/O Controller 1000 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1001 controller hub. 1002 1003 The TCO (Total Cost of Ownership) timer is a watchdog timer 1004 that will reboot the machine after its second expiration. The 1005 expiration time can be configured with the "heartbeat" parameter. 1006 1007 On some motherboards the driver may fail to reset the chipset's 1008 NO_REBOOT flag which prevents the watchdog from rebooting the 1009 machine. If this is the case you will get a kernel message like 1010 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1011 1012 To compile this driver as a module, choose M here: the 1013 module will be called iTCO_wdt. 1014 1015config ITCO_VENDOR_SUPPORT 1016 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1017 depends on ITCO_WDT 1018 ---help--- 1019 Add vendor specific support to the intel TCO timer based watchdog 1020 devices. At this moment we only have additional support for some 1021 SuperMicro Inc. motherboards. 1022 1023config IT8712F_WDT 1024 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1025 depends on X86 1026 ---help--- 1027 This is the driver for the built-in watchdog timer on the IT8712F 1028 Super I/0 chipset used on many motherboards. 1029 1030 If the driver does not work, then make sure that the game port in 1031 the BIOS is enabled. 1032 1033 To compile this driver as a module, choose M here: the 1034 module will be called it8712f_wdt. 1035 1036config IT87_WDT 1037 tristate "IT87 Watchdog Timer" 1038 depends on X86 1039 ---help--- 1040 This is the driver for the hardware watchdog on the ITE IT8620, 1041 IT8702, IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728 1042 Super I/O chips. 1043 1044 If the driver does not work, then make sure that the game port in 1045 the BIOS is enabled. 1046 1047 This watchdog simply watches your kernel to make sure it doesn't 1048 freeze, and if it does, it reboots your computer after a certain 1049 amount of time. 1050 1051 To compile this driver as a module, choose M here: the module will 1052 be called it87_wdt. 1053 1054config HP_WATCHDOG 1055 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1056 depends on X86 && PCI 1057 help 1058 A software monitoring watchdog and NMI sourcing driver. This driver 1059 will detect lockups and provide a stack trace. This is a driver that 1060 will only load on an HP ProLiant system with a minimum of iLO2 support. 1061 To compile this driver as a module, choose M here: the module will be 1062 called hpwdt. 1063 1064config KEMPLD_WDT 1065 tristate "Kontron COM Watchdog Timer" 1066 depends on MFD_KEMPLD || COMPILE_TEST 1067 select WATCHDOG_CORE 1068 help 1069 Support for the PLD watchdog on some Kontron ETX and COMexpress 1070 (ETXexpress) modules 1071 1072 This driver can also be built as a module. If so, the module will be 1073 called kempld_wdt. 1074 1075config HPWDT_NMI_DECODING 1076 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1077 depends on HP_WATCHDOG 1078 default y 1079 help 1080 When an NMI occurs this feature will make the necessary BIOS calls to 1081 log the cause of the NMI. 1082 1083config SC1200_WDT 1084 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1085 depends on X86 1086 help 1087 This is a driver for National Semiconductor PC87307/PC97307 hardware 1088 watchdog cards as found on the SC1200. This watchdog is mainly used 1089 for power management purposes and can be used to power down the device 1090 during inactivity periods (includes interrupt activity monitoring). 1091 1092 To compile this driver as a module, choose M here: the 1093 module will be called sc1200wdt. 1094 1095 Most people will say N. 1096 1097config SCx200_WDT 1098 tristate "National Semiconductor SCx200 Watchdog" 1099 depends on SCx200 && PCI 1100 help 1101 Enable the built-in watchdog timer support on the National 1102 Semiconductor SCx200 processors. 1103 1104 If compiled as a module, it will be called scx200_wdt. 1105 1106config PC87413_WDT 1107 tristate "NS PC87413 watchdog" 1108 depends on X86 1109 ---help--- 1110 This is the driver for the hardware watchdog on the PC87413 chipset 1111 This watchdog simply watches your kernel to make sure it doesn't 1112 freeze, and if it does, it reboots your computer after a certain 1113 amount of time. 1114 1115 To compile this driver as a module, choose M here: the 1116 module will be called pc87413_wdt. 1117 1118 Most people will say N. 1119 1120config NV_TCO 1121 tristate "nVidia TCO Timer/Watchdog" 1122 depends on X86 && PCI 1123 ---help--- 1124 Hardware driver for the TCO timer built into the nVidia Hub family 1125 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1126 watchdog timer that will reboot the machine after its second 1127 expiration. The expiration time can be configured with the 1128 "heartbeat" parameter. 1129 1130 On some motherboards the driver may fail to reset the chipset's 1131 NO_REBOOT flag which prevents the watchdog from rebooting the 1132 machine. If this is the case you will get a kernel message like 1133 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1134 1135 To compile this driver as a module, choose M here: the 1136 module will be called nv_tco. 1137 1138config RDC321X_WDT 1139 tristate "RDC R-321x SoC watchdog" 1140 depends on X86_RDC321X || COMPILE_TEST 1141 depends on PCI 1142 help 1143 This is the driver for the built in hardware watchdog 1144 in the RDC R-321x SoC. 1145 1146 To compile this driver as a module, choose M here: the 1147 module will be called rdc321x_wdt. 1148 1149config 60XX_WDT 1150 tristate "SBC-60XX Watchdog Timer" 1151 depends on X86 1152 help 1153 This driver can be used with the watchdog timer found on some 1154 single board computers, namely the 6010 PII based computer. 1155 It may well work with other cards. It reads port 0x443 to enable 1156 and re-set the watchdog timer, and reads port 0x45 to disable 1157 the watchdog. If you have a card that behave in similar ways, 1158 you can probably make this driver work with your card as well. 1159 1160 You can compile this driver directly into the kernel, or use 1161 it as a module. The module will be called sbc60xxwdt. 1162 1163config SBC8360_WDT 1164 tristate "SBC8360 Watchdog Timer" 1165 depends on X86_32 1166 ---help--- 1167 1168 This is the driver for the hardware watchdog on the SBC8360 Single 1169 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1170 1171 To compile this driver as a module, choose M here: the 1172 module will be called sbc8360. 1173 1174 Most people will say N. 1175 1176config SBC7240_WDT 1177 tristate "SBC Nano 7240 Watchdog Timer" 1178 depends on X86_32 && !UML 1179 ---help--- 1180 This is the driver for the hardware watchdog found on the IEI 1181 single board computers EPIC Nano 7240 (and likely others). This 1182 watchdog simply watches your kernel to make sure it doesn't freeze, 1183 and if it does, it reboots your computer after a certain amount of 1184 time. 1185 1186 To compile this driver as a module, choose M here: the 1187 module will be called sbc7240_wdt. 1188 1189config CPU5_WDT 1190 tristate "SMA CPU5 Watchdog" 1191 depends on X86 1192 ---help--- 1193 TBD. 1194 To compile this driver as a module, choose M here: the 1195 module will be called cpu5wdt. 1196 1197config SMSC_SCH311X_WDT 1198 tristate "SMSC SCH311X Watchdog Timer" 1199 depends on X86 1200 ---help--- 1201 This is the driver for the hardware watchdog timer on the 1202 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1203 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1204 serial ports). 1205 1206 To compile this driver as a module, choose M here: the 1207 module will be called sch311x_wdt. 1208 1209config SMSC37B787_WDT 1210 tristate "Winbond SMsC37B787 Watchdog Timer" 1211 depends on X86 1212 ---help--- 1213 This is the driver for the hardware watchdog component on the 1214 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1215 from Vision Systems and maybe others. 1216 1217 This watchdog simply watches your kernel to make sure it doesn't 1218 freeze, and if it does, it reboots your computer after a certain 1219 amount of time. 1220 1221 Usually a userspace daemon will notify the kernel WDT driver that 1222 userspace is still alive, at regular intervals. 1223 1224 To compile this driver as a module, choose M here: the 1225 module will be called smsc37b787_wdt. 1226 1227 Most people will say N. 1228 1229config VIA_WDT 1230 tristate "VIA Watchdog Timer" 1231 depends on X86 && PCI 1232 select WATCHDOG_CORE 1233 ---help--- 1234 This is the driver for the hardware watchdog timer on VIA 1235 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1236 1237 To compile this driver as a module, choose M here; the module 1238 will be called via_wdt. 1239 1240 Most people will say N. 1241 1242config W83627HF_WDT 1243 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1244 depends on X86 1245 select WATCHDOG_CORE 1246 ---help--- 1247 This is the driver for the hardware watchdog on the following 1248 Super I/O chips. 1249 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1250 W83637HF 1251 W83667HG/HG-B 1252 W83687THF 1253 W83697HF 1254 W83697UG 1255 NCT6775 1256 NCT6776 1257 NCT6779 1258 NCT6791 1259 NCT6792 1260 NCT6102D/04D/06D 1261 1262 This watchdog simply watches your kernel to make sure it doesn't 1263 freeze, and if it does, it reboots your computer after a certain 1264 amount of time. 1265 1266 To compile this driver as a module, choose M here: the 1267 module will be called w83627hf_wdt. 1268 1269 Most people will say N. 1270 1271config W83877F_WDT 1272 tristate "W83877F (EMACS) Watchdog Timer" 1273 depends on X86 1274 ---help--- 1275 This is the driver for the hardware watchdog on the W83877F chipset 1276 as used in EMACS PC-104 motherboards (and likely others). This 1277 watchdog simply watches your kernel to make sure it doesn't freeze, 1278 and if it does, it reboots your computer after a certain amount of 1279 time. 1280 1281 To compile this driver as a module, choose M here: the 1282 module will be called w83877f_wdt. 1283 1284 Most people will say N. 1285 1286config W83977F_WDT 1287 tristate "W83977F (PCM-5335) Watchdog Timer" 1288 depends on X86 1289 ---help--- 1290 This is the driver for the hardware watchdog on the W83977F I/O chip 1291 as used in AAEON's PCM-5335 SBC (and likely others). This 1292 watchdog simply watches your kernel to make sure it doesn't freeze, 1293 and if it does, it reboots your computer after a certain amount of 1294 time. 1295 1296 To compile this driver as a module, choose M here: the 1297 module will be called w83977f_wdt. 1298 1299config MACHZ_WDT 1300 tristate "ZF MachZ Watchdog" 1301 depends on X86 1302 ---help--- 1303 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1304 N. This is the driver for the watchdog timer built-in on that 1305 processor using ZF-Logic interface. This watchdog simply watches 1306 your kernel to make sure it doesn't freeze, and if it does, it 1307 reboots your computer after a certain amount of time. 1308 1309 To compile this driver as a module, choose M here: the 1310 module will be called machzwd. 1311 1312config SBC_EPX_C3_WATCHDOG 1313 tristate "Winsystems SBC EPX-C3 watchdog" 1314 depends on X86 1315 ---help--- 1316 This is the driver for the built-in watchdog timer on the EPX-C3 1317 Single-board computer made by Winsystems, Inc. 1318 1319 *Note*: This hardware watchdog is not probeable and thus there 1320 is no way to know if writing to its IO address will corrupt 1321 your system or have any real effect. The only way to be sure 1322 that this driver does what you want is to make sure you 1323 are running it on an EPX-C3 from Winsystems with the watchdog 1324 timer at IO address 0x1ee and 0x1ef. It will write to both those 1325 IO ports. Basically, the assumption is made that if you compile 1326 this driver into your kernel and/or load it as a module, that you 1327 know what you are doing and that you are in fact running on an 1328 EPX-C3 board! 1329 1330 To compile this driver as a module, choose M here: the 1331 module will be called sbc_epx_c3. 1332 1333config INTEL_MEI_WDT 1334 tristate "Intel MEI iAMT Watchdog" 1335 depends on INTEL_MEI && X86 1336 select WATCHDOG_CORE 1337 ---help--- 1338 A device driver for the Intel MEI iAMT watchdog. 1339 1340 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1341 Whenever the OS hangs or crashes, iAMT will send an event 1342 to any subscriber to this event. The watchdog doesn't reset the 1343 the platform. 1344 1345 To compile this driver as a module, choose M here: 1346 the module will be called mei_wdt. 1347 1348config NI903X_WDT 1349 tristate "NI 903x/913x Watchdog" 1350 depends on X86 && ACPI 1351 select WATCHDOG_CORE 1352 ---help--- 1353 This is the driver for the watchdog timer on the National Instruments 1354 903x/913x real-time controllers. 1355 1356 To compile this driver as a module, choose M here: the module will be 1357 called ni903x_wdt. 1358 1359config NIC7018_WDT 1360 tristate "NIC7018 Watchdog" 1361 depends on X86 && ACPI 1362 select WATCHDOG_CORE 1363 ---help--- 1364 Support for National Instruments NIC7018 Watchdog. 1365 1366 To compile this driver as a module, choose M here: the module will be 1367 called nic7018_wdt. 1368 1369# M32R Architecture 1370 1371# M68K Architecture 1372 1373config M54xx_WATCHDOG 1374 tristate "MCF54xx watchdog support" 1375 depends on M548x 1376 help 1377 To compile this driver as a module, choose M here: the 1378 module will be called m54xx_wdt. 1379 1380# MicroBlaze Architecture 1381 1382# MIPS Architecture 1383 1384config ATH79_WDT 1385 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1386 depends on ATH79 || (ARM && COMPILE_TEST) 1387 help 1388 Hardware driver for the built-in watchdog timer on the Atheros 1389 AR71XX/AR724X/AR913X SoCs. 1390 1391config BCM47XX_WDT 1392 tristate "Broadcom BCM47xx Watchdog Timer" 1393 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1394 select WATCHDOG_CORE 1395 help 1396 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1397 1398config RC32434_WDT 1399 tristate "IDT RC32434 SoC Watchdog Timer" 1400 depends on MIKROTIK_RB532 1401 help 1402 Hardware driver for the IDT RC32434 SoC built-in 1403 watchdog timer. 1404 1405 To compile this driver as a module, choose M here: the 1406 module will be called rc32434_wdt. 1407 1408config INDYDOG 1409 tristate "Indy/I2 Hardware Watchdog" 1410 depends on SGI_HAS_INDYDOG || (MIPS && COMPILE_TEST) 1411 help 1412 Hardware driver for the Indy's/I2's watchdog. This is a 1413 watchdog timer that will reboot the machine after a 60 second 1414 timer expired and no process has written to /dev/watchdog during 1415 that time. 1416 1417config JZ4740_WDT 1418 tristate "Ingenic jz4740 SoC hardware watchdog" 1419 depends on MACH_JZ4740 1420 select WATCHDOG_CORE 1421 help 1422 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1423 1424config WDT_MTX1 1425 tristate "MTX-1 Hardware Watchdog" 1426 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1427 help 1428 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1429 will reboot the machine after a 100 seconds timer expired. 1430 1431config PNX833X_WDT 1432 tristate "PNX833x Hardware Watchdog" 1433 depends on SOC_PNX8335 1434 depends on BROKEN 1435 help 1436 Hardware driver for the PNX833x's watchdog. This is a 1437 watchdog timer that will reboot the machine after a programmable 1438 timer has expired and no process has written to /dev/watchdog during 1439 that time. 1440 1441config SIBYTE_WDOG 1442 tristate "Sibyte SoC hardware watchdog" 1443 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1444 help 1445 Watchdog driver for the built in watchdog hardware in Sibyte 1446 SoC processors. There are apparently two watchdog timers 1447 on such processors; this driver supports only the first one, 1448 because currently Linux only supports exporting one watchdog 1449 to userspace. 1450 1451 To compile this driver as a loadable module, choose M here. 1452 The module will be called sb_wdog. 1453 1454config AR7_WDT 1455 tristate "TI AR7 Watchdog Timer" 1456 depends on AR7 || (MIPS && COMPILE_TEST) 1457 help 1458 Hardware driver for the TI AR7 Watchdog Timer. 1459 1460config TXX9_WDT 1461 tristate "Toshiba TXx9 Watchdog Timer" 1462 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1463 select WATCHDOG_CORE 1464 help 1465 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1466 1467config OCTEON_WDT 1468 tristate "Cavium OCTEON SOC family Watchdog Timer" 1469 depends on CAVIUM_OCTEON_SOC 1470 default y 1471 select WATCHDOG_CORE 1472 select EXPORT_UASM if OCTEON_WDT = m 1473 help 1474 Hardware driver for OCTEON's on chip watchdog timer. 1475 Enables the watchdog for all cores running Linux. It 1476 installs a NMI handler and pokes the watchdog based on an 1477 interrupt. On first expiration of the watchdog, the 1478 interrupt handler pokes it. The second expiration causes an 1479 NMI that prints a message. The third expiration causes a 1480 global soft reset. 1481 1482 When userspace has /dev/watchdog open, no poking is done 1483 from the first interrupt, it is then only poked when the 1484 device is written. 1485 1486config BCM63XX_WDT 1487 tristate "Broadcom BCM63xx hardware watchdog" 1488 depends on BCM63XX 1489 help 1490 Watchdog driver for the built in watchdog hardware in Broadcom 1491 BCM63xx SoC. 1492 1493 To compile this driver as a loadable module, choose M here. 1494 The module will be called bcm63xx_wdt. 1495 1496config BCM2835_WDT 1497 tristate "Broadcom BCM2835 hardware watchdog" 1498 depends on ARCH_BCM2835 || COMPILE_TEST 1499 select WATCHDOG_CORE 1500 help 1501 Watchdog driver for the built in watchdog hardware in Broadcom 1502 BCM2835 SoC. 1503 1504 To compile this driver as a loadable module, choose M here. 1505 The module will be called bcm2835_wdt. 1506 1507config BCM_KONA_WDT 1508 tristate "BCM Kona Watchdog" 1509 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1510 select WATCHDOG_CORE 1511 help 1512 Support for the watchdog timer on the following Broadcom BCM281xx 1513 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1514 BCM28155 variants. 1515 1516 Say 'Y' or 'M' here to enable the driver. The module will be called 1517 bcm_kona_wdt. 1518 1519config BCM_KONA_WDT_DEBUG 1520 bool "DEBUGFS support for BCM Kona Watchdog" 1521 depends on BCM_KONA_WDT || COMPILE_TEST 1522 help 1523 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1524 access to the driver's internal data structures as well as watchdog 1525 timer hardware registres. 1526 1527 If in doubt, say 'N'. 1528 1529config BCM7038_WDT 1530 tristate "BCM7038 Watchdog" 1531 select WATCHDOG_CORE 1532 depends on HAS_IOMEM 1533 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1534 help 1535 Watchdog driver for the built-in hardware in Broadcom 7038 and 1536 later SoCs used in set-top boxes. BCM7038 was made public 1537 during the 2004 CES, and since then, many Broadcom chips use this 1538 watchdog block, including some cable modem chips. 1539 1540config IMGPDC_WDT 1541 tristate "Imagination Technologies PDC Watchdog Timer" 1542 depends on HAS_IOMEM 1543 depends on METAG || MIPS || COMPILE_TEST 1544 select WATCHDOG_CORE 1545 help 1546 Driver for Imagination Technologies PowerDown Controller 1547 Watchdog Timer. 1548 1549 To compile this driver as a loadable module, choose M here. 1550 The module will be called imgpdc_wdt. 1551 1552config LANTIQ_WDT 1553 tristate "Lantiq SoC watchdog" 1554 depends on LANTIQ 1555 help 1556 Hardware driver for the Lantiq SoC Watchdog Timer. 1557 1558config LOONGSON1_WDT 1559 tristate "Loongson1 SoC hardware watchdog" 1560 depends on MACH_LOONGSON32 1561 select WATCHDOG_CORE 1562 help 1563 Hardware driver for the Loongson1 SoC Watchdog Timer. 1564 1565config RALINK_WDT 1566 tristate "Ralink SoC watchdog" 1567 select WATCHDOG_CORE 1568 depends on RALINK 1569 help 1570 Hardware driver for the Ralink SoC Watchdog Timer. 1571 1572config MT7621_WDT 1573 tristate "Mediatek SoC watchdog" 1574 select WATCHDOG_CORE 1575 depends on SOC_MT7620 || SOC_MT7621 1576 help 1577 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1578 1579config PIC32_WDT 1580 tristate "Microchip PIC32 hardware watchdog" 1581 select WATCHDOG_CORE 1582 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1583 help 1584 Watchdog driver for the built in watchdog hardware in a PIC32. 1585 1586 Configuration bits must be set appropriately for the watchdog to be 1587 controlled by this driver. 1588 1589 To compile this driver as a loadable module, choose M here. 1590 The module will be called pic32-wdt. 1591 1592config PIC32_DMT 1593 tristate "Microchip PIC32 Deadman Timer" 1594 select WATCHDOG_CORE 1595 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1596 help 1597 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1598 timer is typically be used in misson critical and safety critical 1599 applications, where any single failure of the software functionality 1600 and sequencing must be detected. 1601 1602 To compile this driver as a loadable module, choose M here. 1603 The module will be called pic32-dmt. 1604 1605# PARISC Architecture 1606 1607# POWERPC Architecture 1608 1609config GEF_WDT 1610 tristate "GE Watchdog Timer" 1611 depends on GE_FPGA 1612 ---help--- 1613 Watchdog timer found in a number of GE single board computers. 1614 1615config MPC5200_WDT 1616 bool "MPC52xx Watchdog Timer" 1617 depends on PPC_MPC52xx || COMPILE_TEST 1618 help 1619 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1620 1621config 8xxx_WDT 1622 tristate "MPC8xxx Platform Watchdog Timer" 1623 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1624 select WATCHDOG_CORE 1625 help 1626 This driver is for a SoC level watchdog that exists on some 1627 Freescale PowerPC processors. So far this driver supports: 1628 - MPC8xx watchdogs 1629 - MPC83xx watchdogs 1630 - MPC86xx watchdogs 1631 1632 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1633 1634config MV64X60_WDT 1635 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1636 depends on MV64X60 || COMPILE_TEST 1637 1638config PIKA_WDT 1639 tristate "PIKA FPGA Watchdog" 1640 depends on WARP || (PPC64 && COMPILE_TEST) 1641 default y 1642 help 1643 This enables the watchdog in the PIKA FPGA. Currently used on 1644 the Warp platform. 1645 1646config BOOKE_WDT 1647 tristate "PowerPC Book-E Watchdog Timer" 1648 depends on BOOKE || 4xx 1649 select WATCHDOG_CORE 1650 ---help--- 1651 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1652 MPC85xx SOCs and the IBM PowerPC 440. 1653 1654 Please see Documentation/watchdog/watchdog-api.txt for 1655 more information. 1656 1657config BOOKE_WDT_DEFAULT_TIMEOUT 1658 int "PowerPC Book-E Watchdog Timer Default Timeout" 1659 depends on BOOKE_WDT 1660 default 38 if PPC_FSL_BOOK3E 1661 range 0 63 if PPC_FSL_BOOK3E 1662 default 3 if !PPC_FSL_BOOK3E 1663 range 0 3 if !PPC_FSL_BOOK3E 1664 help 1665 Select the default watchdog timer period to be used by the PowerPC 1666 Book-E watchdog driver. A watchdog "event" occurs when the bit 1667 position represented by this number transitions from zero to one. 1668 1669 For Freescale Book-E processors, this is a number between 0 and 63. 1670 For other Book-E processors, this is a number between 0 and 3. 1671 1672 The value can be overridden by the wdt_period command-line parameter. 1673 1674config MEN_A21_WDT 1675 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1676 select WATCHDOG_CORE 1677 depends on GPIOLIB || COMPILE_TEST 1678 help 1679 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1680 1681 The driver can also be built as a module. If so, the module will be 1682 called mena21_wdt. 1683 1684 If unsure select N here. 1685 1686# PPC64 Architecture 1687 1688config WATCHDOG_RTAS 1689 tristate "RTAS watchdog" 1690 depends on PPC_RTAS || (PPC64 && COMPILE_TEST) 1691 help 1692 This driver adds watchdog support for the RTAS watchdog. 1693 1694 To compile this driver as a module, choose M here. The module 1695 will be called wdrtas. 1696 1697# S390 Architecture 1698 1699config DIAG288_WATCHDOG 1700 tristate "System z diag288 Watchdog" 1701 depends on S390 1702 select WATCHDOG_CORE 1703 help 1704 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1705 provide a virtual watchdog timer to their guest that cause a 1706 user define Control Program command to be executed after a 1707 timeout. 1708 LPAR provides a very similar interface. This driver handles 1709 both. 1710 1711 To compile this driver as a module, choose M here. The module 1712 will be called diag288_wdt. 1713 1714# SUPERH (sh + sh64) Architecture 1715 1716config SH_WDT 1717 tristate "SuperH Watchdog" 1718 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1719 select WATCHDOG_CORE 1720 help 1721 This driver adds watchdog support for the integrated watchdog in the 1722 SuperH processors. If you have one of these processors and wish 1723 to have watchdog support enabled, say Y, otherwise say N. 1724 1725 As a side note, saying Y here will automatically boost HZ to 1000 1726 so that the timer has a chance to clear the overflow counter. On 1727 slower systems (such as the SH-2 and SH-3) this will likely yield 1728 some performance issues. As such, the WDT should be avoided here 1729 unless it is absolutely necessary. 1730 1731 To compile this driver as a module, choose M here: the 1732 module will be called shwdt. 1733 1734# SPARC Architecture 1735 1736# SPARC64 Architecture 1737 1738config WATCHDOG_CP1XXX 1739 tristate "CP1XXX Hardware Watchdog support" 1740 depends on SPARC64 && PCI 1741 ---help--- 1742 This is the driver for the hardware watchdog timers present on 1743 Sun Microsystems CompactPCI models CP1400 and CP1500. 1744 1745 To compile this driver as a module, choose M here: the 1746 module will be called cpwatchdog. 1747 1748 If you do not have a CompactPCI model CP1400 or CP1500, or 1749 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1750 you should say N to this option. 1751 1752config WATCHDOG_RIO 1753 tristate "RIO Hardware Watchdog support" 1754 depends on SPARC64 && PCI 1755 help 1756 Say Y here to support the hardware watchdog capability on Sun RIO 1757 machines. The watchdog timeout period is normally one minute but 1758 can be changed with a boot-time parameter. 1759 1760config WATCHDOG_SUN4V 1761 tristate "Sun4v Watchdog support" 1762 select WATCHDOG_CORE 1763 depends on SPARC64 1764 help 1765 Say Y here to support the hypervisor watchdog capability embedded 1766 in the SPARC sun4v architecture. 1767 1768 To compile this driver as a module, choose M here. The module will 1769 be called sun4v_wdt. 1770 1771# XTENSA Architecture 1772 1773# Xen Architecture 1774 1775config XEN_WDT 1776 tristate "Xen Watchdog support" 1777 depends on XEN 1778 help 1779 Say Y here to support the hypervisor watchdog capability provided 1780 by Xen 4.0 and newer. The watchdog timeout period is normally one 1781 minute but can be changed with a boot-time parameter. 1782 1783config UML_WATCHDOG 1784 tristate "UML watchdog" 1785 depends on UML || COMPILE_TEST 1786 1787# 1788# ISA-based Watchdog Cards 1789# 1790 1791comment "ISA-based Watchdog Cards" 1792 depends on ISA 1793 1794config PCWATCHDOG 1795 tristate "Berkshire Products ISA-PC Watchdog" 1796 depends on ISA 1797 ---help--- 1798 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1799 This card simply watches your kernel to make sure it doesn't freeze, 1800 and if it does, it reboots your computer after a certain amount of 1801 time. This driver is like the WDT501 driver but for different 1802 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1803 watchdog cards can be ordered from <http://www.berkprod.com/>. 1804 1805 To compile this driver as a module, choose M here: the 1806 module will be called pcwd. 1807 1808 Most people will say N. 1809 1810config MIXCOMWD 1811 tristate "Mixcom Watchdog" 1812 depends on ISA 1813 ---help--- 1814 This is a driver for the Mixcom hardware watchdog cards. This 1815 watchdog simply watches your kernel to make sure it doesn't freeze, 1816 and if it does, it reboots your computer after a certain amount of 1817 time. 1818 1819 To compile this driver as a module, choose M here: the 1820 module will be called mixcomwd. 1821 1822 Most people will say N. 1823 1824config WDT 1825 tristate "WDT Watchdog timer" 1826 depends on ISA 1827 ---help--- 1828 If you have a WDT500P or WDT501P watchdog board, say Y here, 1829 otherwise N. It is not possible to probe for this board, which means 1830 that you have to inform the kernel about the IO port and IRQ that 1831 is needed (you can do this via the io and irq parameters) 1832 1833 To compile this driver as a module, choose M here: the 1834 module will be called wdt. 1835 1836# 1837# PCI-based Watchdog Cards 1838# 1839 1840comment "PCI-based Watchdog Cards" 1841 depends on PCI 1842 1843config PCIPCWATCHDOG 1844 tristate "Berkshire Products PCI-PC Watchdog" 1845 depends on PCI 1846 ---help--- 1847 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1848 This card simply watches your kernel to make sure it doesn't freeze, 1849 and if it does, it reboots your computer after a certain amount of 1850 time. The card can also monitor the internal temperature of the PC. 1851 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1852 1853 To compile this driver as a module, choose M here: the 1854 module will be called pcwd_pci. 1855 1856 Most people will say N. 1857 1858config WDTPCI 1859 tristate "PCI-WDT500/501 Watchdog timer" 1860 depends on PCI 1861 ---help--- 1862 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1863 1864 If you have a PCI-WDT501 watchdog board then you can enable the 1865 temperature sensor by setting the type parameter to 501. 1866 1867 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1868 can do this via the tachometer parameter. Only do this if you have a 1869 fan tachometer actually set up. 1870 1871 To compile this driver as a module, choose M here: the 1872 module will be called wdt_pci. 1873 1874# 1875# USB-based Watchdog Cards 1876# 1877 1878comment "USB-based Watchdog Cards" 1879 depends on USB 1880 1881config USBPCWATCHDOG 1882 tristate "Berkshire Products USB-PC Watchdog" 1883 depends on USB 1884 ---help--- 1885 This is the driver for the Berkshire Products USB-PC Watchdog card. 1886 This card simply watches your kernel to make sure it doesn't freeze, 1887 and if it does, it reboots your computer after a certain amount of 1888 time. The card can also monitor the internal temperature of the PC. 1889 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1890 1891 To compile this driver as a module, choose M here: the 1892 module will be called pcwd_usb. 1893 1894 Most people will say N. 1895 1896comment "Watchdog Pretimeout Governors" 1897 1898config WATCHDOG_PRETIMEOUT_GOV 1899 bool "Enable watchdog pretimeout governors" 1900 help 1901 The option allows to select watchdog pretimeout governors. 1902 1903if WATCHDOG_PRETIMEOUT_GOV 1904 1905choice 1906 prompt "Default Watchdog Pretimeout Governor" 1907 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1908 help 1909 This option selects a default watchdog pretimeout governor. 1910 The governor takes its action, if a watchdog is capable 1911 to report a pretimeout event. 1912 1913config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 1914 bool "noop" 1915 select WATCHDOG_PRETIMEOUT_GOV_NOOP 1916 help 1917 Use noop watchdog pretimeout governor by default. If noop 1918 governor is selected by a user, write a short message to 1919 the kernel log buffer and don't do any system changes. 1920 1921config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1922 bool "panic" 1923 select WATCHDOG_PRETIMEOUT_GOV_PANIC 1924 help 1925 Use panic watchdog pretimeout governor by default, if 1926 a watchdog pretimeout event happens, consider that 1927 a watchdog feeder is dead and reboot is unavoidable. 1928 1929endchoice 1930 1931config WATCHDOG_PRETIMEOUT_GOV_NOOP 1932 tristate "Noop watchdog pretimeout governor" 1933 help 1934 Noop watchdog pretimeout governor, only an informational 1935 message is added to kernel log buffer. 1936 1937config WATCHDOG_PRETIMEOUT_GOV_PANIC 1938 tristate "Panic watchdog pretimeout governor" 1939 help 1940 Panic watchdog pretimeout governor, on watchdog pretimeout 1941 event put the kernel into panic. 1942 1943endif # WATCHDOG_PRETIMEOUT_GOV 1944 1945endif # WATCHDOG 1946