1# 2# Watchdog device configuration 3# 4 5menuconfig WATCHDOG 6 bool "Watchdog Timer Support" 7 ---help--- 8 If you say Y here (and to one of the following options) and create a 9 character special file /dev/watchdog with major number 10 and minor 10 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 11 subsequently opening the file and then failing to write to it for 12 longer than 1 minute will result in rebooting the machine. This 13 could be useful for a networked machine that needs to come back 14 on-line as fast as possible after a lock-up. There's both a watchdog 15 implementation entirely in software (which can sometimes fail to 16 reboot the machine) and a driver for hardware watchdog boards, which 17 are more robust and can also keep track of the temperature inside 18 your computer. For details, read 19 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source. 20 21 The watchdog is usually used together with the watchdog daemon 22 which is available from 23 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can 24 also monitor NFS connections and can reboot the machine when the process 25 table is full. 26 27 If unsure, say N. 28 29if WATCHDOG 30 31config WATCHDOG_CORE 32 bool "WatchDog Timer Driver Core" 33 ---help--- 34 Say Y here if you want to use the new watchdog timer driver core. 35 This driver provides a framework for all watchdog timer drivers 36 and gives them the /dev/watchdog interface (and later also the 37 sysfs interface). 38 39config WATCHDOG_NOWAYOUT 40 bool "Disable watchdog shutdown on close" 41 help 42 The default watchdog behaviour (which you get if you say N here) is 43 to stop the timer if the process managing it closes the file 44 /dev/watchdog. It's always remotely possible that this process might 45 get killed. If you say Y here, the watchdog cannot be stopped once 46 it has been started. 47 48# 49# General Watchdog drivers 50# 51 52comment "Watchdog Device Drivers" 53 54# Architecture Independent 55 56config SOFT_WATCHDOG 57 tristate "Software watchdog" 58 select WATCHDOG_CORE 59 help 60 A software monitoring watchdog. This will fail to reboot your system 61 from some situations that the hardware watchdog will recover 62 from. Equally it's a lot cheaper to install. 63 64 To compile this driver as a module, choose M here: the 65 module will be called softdog. 66 67config WM831X_WATCHDOG 68 tristate "WM831x watchdog" 69 depends on MFD_WM831X 70 select WATCHDOG_CORE 71 help 72 Support for the watchdog in the WM831x AudioPlus PMICs. When 73 the watchdog triggers the system will be reset. 74 75config WM8350_WATCHDOG 76 tristate "WM8350 watchdog" 77 depends on MFD_WM8350 78 select WATCHDOG_CORE 79 help 80 Support for the watchdog in the WM8350 AudioPlus PMIC. When 81 the watchdog triggers the system will be reset. 82 83# ALPHA Architecture 84 85# ARM Architecture 86 87config ARM_SP805_WATCHDOG 88 tristate "ARM SP805 Watchdog" 89 depends on ARM_AMBA 90 help 91 ARM Primecell SP805 Watchdog timer. This will reboot your system when 92 the timeout is reached. 93 94config AT91RM9200_WATCHDOG 95 tristate "AT91RM9200 watchdog" 96 depends on ARCH_AT91RM9200 97 help 98 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 99 system when the timeout is reached. 100 101config AT91SAM9X_WATCHDOG 102 tristate "AT91SAM9X / AT91CAP9 watchdog" 103 depends on ARCH_AT91 && !ARCH_AT91RM9200 104 help 105 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 106 reboot your system when the timeout is reached. 107 108config 21285_WATCHDOG 109 tristate "DC21285 watchdog" 110 depends on FOOTBRIDGE 111 help 112 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 113 here if you wish to use this. Alternatively say M to compile the 114 driver as a module, which will be called wdt285. 115 116 This driver does not work on all machines. In particular, early CATS 117 boards have hardware problems that will cause the machine to simply 118 lock up if the watchdog fires. 119 120 "If in doubt, leave it out" - say N. 121 122config 977_WATCHDOG 123 tristate "NetWinder WB83C977 watchdog" 124 depends on FOOTBRIDGE && ARCH_NETWINDER 125 help 126 Say Y here to include support for the WB977 watchdog included in 127 NetWinder machines. Alternatively say M to compile the driver as 128 a module, which will be called wdt977. 129 130 Not sure? It's safe to say N. 131 132config IXP2000_WATCHDOG 133 tristate "IXP2000 Watchdog" 134 depends on ARCH_IXP2000 135 help 136 Say Y here if to include support for the watchdog timer 137 in the Intel IXP2000(2400, 2800, 2850) network processors. 138 This driver can be built as a module by choosing M. The module 139 will be called ixp2000_wdt. 140 141 Say N if you are unsure. 142 143config IXP4XX_WATCHDOG 144 tristate "IXP4xx Watchdog" 145 depends on ARCH_IXP4XX 146 help 147 Say Y here if to include support for the watchdog timer 148 in the Intel IXP4xx network processors. This driver can 149 be built as a module by choosing M. The module will 150 be called ixp4xx_wdt. 151 152 Note: The internal IXP4xx watchdog does a soft CPU reset 153 which doesn't reset any peripherals. There are circumstances 154 where the watchdog will fail to reset the board correctly 155 (e.g., if the boot ROM is in an unreadable state). 156 157 Say N if you are unsure. 158 159config KS8695_WATCHDOG 160 tristate "KS8695 watchdog" 161 depends on ARCH_KS8695 162 help 163 Watchdog timer embedded into KS8695 processor. This will reboot your 164 system when the timeout is reached. 165 166config HAVE_S3C2410_WATCHDOG 167 bool 168 help 169 This will include watchdog timer support for Samsung SoCs. If 170 you want to include watchdog support for any machine, kindly 171 select this in the respective mach-XXXX/Kconfig file. 172 173config S3C2410_WATCHDOG 174 tristate "S3C2410 Watchdog" 175 depends on HAVE_S3C2410_WATCHDOG 176 select WATCHDOG_CORE 177 help 178 Watchdog timer block in the Samsung SoCs. This will reboot 179 the system when the timer expires with the watchdog enabled. 180 181 The driver is limited by the speed of the system's PCLK 182 signal, so with reasonably fast systems (PCLK around 50-66MHz) 183 then watchdog intervals of over approximately 20seconds are 184 unavailable. 185 186 The driver can be built as a module by choosing M, and will 187 be called s3c2410_wdt 188 189config SA1100_WATCHDOG 190 tristate "SA1100/PXA2xx watchdog" 191 depends on ARCH_SA1100 || ARCH_PXA 192 help 193 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 194 reboot your system when timeout is reached. 195 196 NOTE: once enabled, this timer cannot be disabled. 197 198 To compile this driver as a module, choose M here: the 199 module will be called sa1100_wdt. 200 201config DW_WATCHDOG 202 tristate "Synopsys DesignWare watchdog" 203 depends on ARM && HAVE_CLK 204 help 205 Say Y here if to include support for the Synopsys DesignWare 206 watchdog timer found in many ARM chips. 207 To compile this driver as a module, choose M here: the 208 module will be called dw_wdt. 209 210config MPCORE_WATCHDOG 211 tristate "MPcore watchdog" 212 depends on HAVE_ARM_TWD 213 help 214 Watchdog timer embedded into the MPcore system. 215 216 To compile this driver as a module, choose M here: the 217 module will be called mpcore_wdt. 218 219config EP93XX_WATCHDOG 220 tristate "EP93xx Watchdog" 221 depends on ARCH_EP93XX 222 select WATCHDOG_CORE 223 help 224 Say Y here if to include support for the watchdog timer 225 embedded in the Cirrus Logic EP93xx family of devices. 226 227 To compile this driver as a module, choose M here: the 228 module will be called ep93xx_wdt. 229 230config OMAP_WATCHDOG 231 tristate "OMAP Watchdog" 232 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS 233 help 234 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 235 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 236 237config PNX4008_WATCHDOG 238 tristate "PNX4008 and LPC32XX Watchdog" 239 depends on ARCH_PNX4008 || ARCH_LPC32XX 240 select WATCHDOG_CORE 241 help 242 Say Y here if to include support for the watchdog timer 243 in the PNX4008 or LPC32XX processor. 244 This driver can be built as a module by choosing M. The module 245 will be called pnx4008_wdt. 246 247 Say N if you are unsure. 248 249config IOP_WATCHDOG 250 tristate "IOP Watchdog" 251 depends on PLAT_IOP 252 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 253 help 254 Say Y here if to include support for the watchdog timer 255 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 256 be built as a module by choosing M. The module will 257 be called iop_wdt. 258 259 Note: The IOP13XX watchdog does an Internal Bus Reset which will 260 affect both cores and the peripherals of the IOP. The ATU-X 261 and/or ATUe configuration registers will remain intact, but if 262 operating as an Root Complex and/or Central Resource, the PCI-X 263 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 264 265config DAVINCI_WATCHDOG 266 tristate "DaVinci watchdog" 267 depends on ARCH_DAVINCI 268 help 269 Say Y here if to include support for the watchdog timer 270 in the DaVinci DM644x/DM646x processors. 271 To compile this driver as a module, choose M here: the 272 module will be called davinci_wdt. 273 274 NOTE: once enabled, this timer cannot be disabled. 275 Say N if you are unsure. 276 277config ORION_WATCHDOG 278 tristate "Orion watchdog" 279 depends on ARCH_ORION5X || ARCH_KIRKWOOD 280 help 281 Say Y here if to include support for the watchdog timer 282 in the Marvell Orion5x and Kirkwood ARM SoCs. 283 To compile this driver as a module, choose M here: the 284 module will be called orion_wdt. 285 286config COH901327_WATCHDOG 287 bool "ST-Ericsson COH 901 327 watchdog" 288 depends on ARCH_U300 289 default y if MACH_U300 290 select WATCHDOG_CORE 291 help 292 Say Y here to include Watchdog timer support for the 293 watchdog embedded into the ST-Ericsson U300 series platforms. 294 This watchdog is used to reset the system and thus cannot be 295 compiled as a module. 296 297config TWL4030_WATCHDOG 298 tristate "TWL4030 Watchdog" 299 depends on TWL4030_CORE 300 help 301 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 302 watchdog timer support for TWL4030 chips. 303 304config STMP3XXX_WATCHDOG 305 tristate "Freescale STMP3XXX watchdog" 306 depends on ARCH_STMP3XXX 307 help 308 Say Y here if to include support for the watchdog timer 309 for the Sigmatel STMP37XX/378X SoC. 310 To compile this driver as a module, choose M here: the 311 module will be called stmp3xxx_wdt. 312 313config NUC900_WATCHDOG 314 tristate "Nuvoton NUC900 watchdog" 315 depends on ARCH_W90X900 316 help 317 Say Y here if to include support for the watchdog timer 318 for the Nuvoton NUC900 series SoCs. 319 To compile this driver as a module, choose M here: the 320 module will be called nuc900_wdt. 321 322config TS72XX_WATCHDOG 323 tristate "TS-72XX SBC Watchdog" 324 depends on MACH_TS72XX 325 help 326 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 327 watchdog timer implemented in a external CPLD chip. Say Y here 328 if you want to support for the watchdog timer on TS-72XX boards. 329 330 To compile this driver as a module, choose M here: the 331 module will be called ts72xx_wdt. 332 333config MAX63XX_WATCHDOG 334 tristate "Max63xx watchdog" 335 depends on ARM && HAS_IOMEM 336 select WATCHDOG_CORE 337 help 338 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 339 340config IMX2_WDT 341 tristate "IMX2+ Watchdog" 342 depends on IMX_HAVE_PLATFORM_IMX2_WDT 343 help 344 This is the driver for the hardware watchdog 345 on the Freescale IMX2 and later processors. 346 If you have one of these processors and wish to have 347 watchdog support enabled, say Y, otherwise say N. 348 349 To compile this driver as a module, choose M here: the 350 module will be called imx2_wdt. 351 352# AVR32 Architecture 353 354config AT32AP700X_WDT 355 tristate "AT32AP700x watchdog" 356 depends on CPU_AT32AP700X 357 help 358 Watchdog timer embedded into AT32AP700x devices. This will reboot 359 your system when the timeout is reached. 360 361# BLACKFIN Architecture 362 363config BFIN_WDT 364 tristate "Blackfin On-Chip Watchdog Timer" 365 depends on BLACKFIN 366 ---help--- 367 If you say yes here you will get support for the Blackfin On-Chip 368 Watchdog Timer. If you have one of these processors and wish to 369 have watchdog support enabled, say Y, otherwise say N. 370 371 To compile this driver as a module, choose M here: the 372 module will be called bfin_wdt. 373 374# CRIS Architecture 375 376# FRV Architecture 377 378# H8300 Architecture 379 380# X86 (i386 + ia64 + x86_64) Architecture 381 382config ACQUIRE_WDT 383 tristate "Acquire SBC Watchdog Timer" 384 depends on X86 385 ---help--- 386 This is the driver for the hardware watchdog on Single Board 387 Computers produced by Acquire Inc (and others). This watchdog 388 simply watches your kernel to make sure it doesn't freeze, and if 389 it does, it reboots your computer after a certain amount of time. 390 391 To compile this driver as a module, choose M here: the 392 module will be called acquirewdt. 393 394 Most people will say N. 395 396config ADVANTECH_WDT 397 tristate "Advantech SBC Watchdog Timer" 398 depends on X86 399 help 400 If you are configuring a Linux kernel for the Advantech single-board 401 computer, say `Y' here to support its built-in watchdog timer 402 feature. More information can be found at 403 <http://www.advantech.com.tw/products/> 404 405config ALIM1535_WDT 406 tristate "ALi M1535 PMU Watchdog Timer" 407 depends on X86 && PCI 408 ---help--- 409 This is the driver for the hardware watchdog on the ALi M1535 PMU. 410 411 To compile this driver as a module, choose M here: the 412 module will be called alim1535_wdt. 413 414 Most people will say N. 415 416config ALIM7101_WDT 417 tristate "ALi M7101 PMU Computer Watchdog" 418 depends on PCI 419 help 420 This is the driver for the hardware watchdog on the ALi M7101 PMU 421 as used in the x86 Cobalt servers and also found in some 422 SPARC Netra servers too. 423 424 To compile this driver as a module, choose M here: the 425 module will be called alim7101_wdt. 426 427 Most people will say N. 428 429config F71808E_WDT 430 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog" 431 depends on X86 && EXPERIMENTAL 432 help 433 This is the driver for the hardware watchdog on the Fintek 434 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers. 435 436 You can compile this driver directly into the kernel, or use 437 it as a module. The module will be called f71808e_wdt. 438 439config SP5100_TCO 440 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 441 depends on X86 && PCI 442 ---help--- 443 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 444 (Total Cost of Ownership) timer is a watchdog timer that will reboot 445 the machine after its expiration. The expiration time can be 446 configured with the "heartbeat" parameter. 447 448 To compile this driver as a module, choose M here: the 449 module will be called sp5100_tco. 450 451config GEODE_WDT 452 tristate "AMD Geode CS5535/CS5536 Watchdog" 453 depends on CS5535_MFGPT 454 help 455 This driver enables a watchdog capability built into the 456 CS5535/CS5536 companion chips for the AMD Geode GX and LX 457 processors. This watchdog watches your kernel to make sure 458 it doesn't freeze, and if it does, it reboots your computer after 459 a certain amount of time. 460 461 You can compile this driver directly into the kernel, or use 462 it as a module. The module will be called geodewdt. 463 464config SC520_WDT 465 tristate "AMD Elan SC520 processor Watchdog" 466 depends on X86 467 help 468 This is the driver for the hardware watchdog built in to the 469 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 470 This watchdog simply watches your kernel to make sure it doesn't 471 freeze, and if it does, it reboots your computer after a certain 472 amount of time. 473 474 You can compile this driver directly into the kernel, or use 475 it as a module. The module will be called sc520_wdt. 476 477config SBC_FITPC2_WATCHDOG 478 tristate "Compulab SBC-FITPC2 watchdog" 479 depends on X86 480 ---help--- 481 This is the driver for the built-in watchdog timer on the fit-PC2, 482 fit-PC2i, CM-iAM single-board computers made by Compulab. 483 484 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 485 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 486 487 Entering BIOS setup temporary disables watchdog operation regardless to current state, 488 so system will not be restarted while user in BIOS setup. 489 490 Once watchdog was enabled the system will be restarted every 491 "Watchdog Timer Value" period, so to prevent it user can restart or 492 disable the watchdog. 493 494 To compile this driver as a module, choose M here: the 495 module will be called sbc_fitpc2_wdt. 496 497 Most people will say N. 498 499config EUROTECH_WDT 500 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 501 depends on X86 502 help 503 Enable support for the watchdog timer on the Eurotech CPU-1220 and 504 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 505 information are at <http://www.eurotech.it/>. 506 507config IB700_WDT 508 tristate "IB700 SBC Watchdog Timer" 509 depends on X86 510 ---help--- 511 This is the driver for the hardware watchdog on the IB700 Single 512 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 513 simply watches your kernel to make sure it doesn't freeze, and if 514 it does, it reboots your computer after a certain amount of time. 515 516 This driver is like the WDT501 driver but for slightly different hardware. 517 518 To compile this driver as a module, choose M here: the 519 module will be called ib700wdt. 520 521 Most people will say N. 522 523config IBMASR 524 tristate "IBM Automatic Server Restart" 525 depends on X86 526 help 527 This is the driver for the IBM Automatic Server Restart watchdog 528 timer built-in into some eServer xSeries machines. 529 530 To compile this driver as a module, choose M here: the 531 module will be called ibmasr. 532 533config WAFER_WDT 534 tristate "ICP Single Board Computer Watchdog Timer" 535 depends on X86 536 help 537 This is a driver for the hardware watchdog on the ICP Single 538 Board Computer. This driver is working on (at least) the following 539 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 540 541 To compile this driver as a module, choose M here: the 542 module will be called wafer5823wdt. 543 544config I6300ESB_WDT 545 tristate "Intel 6300ESB Timer/Watchdog" 546 depends on X86 && PCI 547 ---help--- 548 Hardware driver for the watchdog timer built into the Intel 549 6300ESB controller hub. 550 551 To compile this driver as a module, choose M here: the 552 module will be called i6300esb. 553 554config INTEL_SCU_WATCHDOG 555 bool "Intel SCU Watchdog for Mobile Platforms" 556 depends on X86_MRST 557 ---help--- 558 Hardware driver for the watchdog time built into the Intel SCU 559 for Intel Mobile Platforms. 560 561 To compile this driver as a module, choose M here. 562 563config ITCO_WDT 564 tristate "Intel TCO Timer/Watchdog" 565 depends on (X86 || IA64) && PCI 566 ---help--- 567 Hardware driver for the intel TCO timer based watchdog devices. 568 These drivers are included in the Intel 82801 I/O Controller 569 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 570 controller hub. 571 572 The TCO (Total Cost of Ownership) timer is a watchdog timer 573 that will reboot the machine after its second expiration. The 574 expiration time can be configured with the "heartbeat" parameter. 575 576 On some motherboards the driver may fail to reset the chipset's 577 NO_REBOOT flag which prevents the watchdog from rebooting the 578 machine. If this is the case you will get a kernel message like 579 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 580 581 To compile this driver as a module, choose M here: the 582 module will be called iTCO_wdt. 583 584config ITCO_VENDOR_SUPPORT 585 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 586 depends on ITCO_WDT 587 ---help--- 588 Add vendor specific support to the intel TCO timer based watchdog 589 devices. At this moment we only have additional support for some 590 SuperMicro Inc. motherboards. 591 592config IT8712F_WDT 593 tristate "IT8712F (Smart Guardian) Watchdog Timer" 594 depends on X86 595 ---help--- 596 This is the driver for the built-in watchdog timer on the IT8712F 597 Super I/0 chipset used on many motherboards. 598 599 If the driver does not work, then make sure that the game port in 600 the BIOS is enabled. 601 602 To compile this driver as a module, choose M here: the 603 module will be called it8712f_wdt. 604 605config IT87_WDT 606 tristate "IT87 Watchdog Timer" 607 depends on X86 && EXPERIMENTAL 608 ---help--- 609 This is the driver for the hardware watchdog on the ITE IT8702, 610 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 Super I/O chips. 611 This watchdog simply watches your kernel to make sure it doesn't 612 freeze, and if it does, it reboots your computer after a certain 613 amount of time. 614 615 To compile this driver as a module, choose M here: the module will 616 be called it87_wdt. 617 618config HP_WATCHDOG 619 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 620 depends on X86 && PCI 621 help 622 A software monitoring watchdog and NMI sourcing driver. This driver 623 will detect lockups and provide a stack trace. This is a driver that 624 will only load on an HP ProLiant system with a minimum of iLO2 support. 625 To compile this driver as a module, choose M here: the module will be 626 called hpwdt. 627 628config HPWDT_NMI_DECODING 629 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 630 depends on HP_WATCHDOG 631 default y 632 help 633 When an NMI occurs this feature will make the necessary BIOS calls to 634 log the cause of the NMI. 635 636config SC1200_WDT 637 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 638 depends on X86 639 help 640 This is a driver for National Semiconductor PC87307/PC97307 hardware 641 watchdog cards as found on the SC1200. This watchdog is mainly used 642 for power management purposes and can be used to power down the device 643 during inactivity periods (includes interrupt activity monitoring). 644 645 To compile this driver as a module, choose M here: the 646 module will be called sc1200wdt. 647 648 Most people will say N. 649 650config SCx200_WDT 651 tristate "National Semiconductor SCx200 Watchdog" 652 depends on SCx200 && PCI 653 help 654 Enable the built-in watchdog timer support on the National 655 Semiconductor SCx200 processors. 656 657 If compiled as a module, it will be called scx200_wdt. 658 659config PC87413_WDT 660 tristate "NS PC87413 watchdog" 661 depends on X86 662 ---help--- 663 This is the driver for the hardware watchdog on the PC87413 chipset 664 This watchdog simply watches your kernel to make sure it doesn't 665 freeze, and if it does, it reboots your computer after a certain 666 amount of time. 667 668 To compile this driver as a module, choose M here: the 669 module will be called pc87413_wdt. 670 671 Most people will say N. 672 673config NV_TCO 674 tristate "nVidia TCO Timer/Watchdog" 675 depends on X86 && PCI 676 ---help--- 677 Hardware driver for the TCO timer built into the nVidia Hub family 678 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 679 watchdog timer that will reboot the machine after its second 680 expiration. The expiration time can be configured with the 681 "heartbeat" parameter. 682 683 On some motherboards the driver may fail to reset the chipset's 684 NO_REBOOT flag which prevents the watchdog from rebooting the 685 machine. If this is the case you will get a kernel message like 686 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 687 688 To compile this driver as a module, choose M here: the 689 module will be called nv_tco. 690 691config RDC321X_WDT 692 tristate "RDC R-321x SoC watchdog" 693 depends on X86_RDC321X 694 help 695 This is the driver for the built in hardware watchdog 696 in the RDC R-321x SoC. 697 698 To compile this driver as a module, choose M here: the 699 module will be called rdc321x_wdt. 700 701config 60XX_WDT 702 tristate "SBC-60XX Watchdog Timer" 703 depends on X86 704 help 705 This driver can be used with the watchdog timer found on some 706 single board computers, namely the 6010 PII based computer. 707 It may well work with other cards. It reads port 0x443 to enable 708 and re-set the watchdog timer, and reads port 0x45 to disable 709 the watchdog. If you have a card that behave in similar ways, 710 you can probably make this driver work with your card as well. 711 712 You can compile this driver directly into the kernel, or use 713 it as a module. The module will be called sbc60xxwdt. 714 715config SBC8360_WDT 716 tristate "SBC8360 Watchdog Timer" 717 depends on X86 718 ---help--- 719 720 This is the driver for the hardware watchdog on the SBC8360 Single 721 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 722 723 To compile this driver as a module, choose M here: the 724 module will be called sbc8360. 725 726 Most people will say N. 727 728config SBC7240_WDT 729 tristate "SBC Nano 7240 Watchdog Timer" 730 depends on X86_32 && !UML 731 ---help--- 732 This is the driver for the hardware watchdog found on the IEI 733 single board computers EPIC Nano 7240 (and likely others). This 734 watchdog simply watches your kernel to make sure it doesn't freeze, 735 and if it does, it reboots your computer after a certain amount of 736 time. 737 738 To compile this driver as a module, choose M here: the 739 module will be called sbc7240_wdt. 740 741config CPU5_WDT 742 tristate "SMA CPU5 Watchdog" 743 depends on X86 744 ---help--- 745 TBD. 746 To compile this driver as a module, choose M here: the 747 module will be called cpu5wdt. 748 749config SMSC_SCH311X_WDT 750 tristate "SMSC SCH311X Watchdog Timer" 751 depends on X86 752 ---help--- 753 This is the driver for the hardware watchdog timer on the 754 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 755 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 756 serial ports). 757 758 To compile this driver as a module, choose M here: the 759 module will be called sch311x_wdt. 760 761config SMSC37B787_WDT 762 tristate "Winbond SMsC37B787 Watchdog Timer" 763 depends on X86 764 ---help--- 765 This is the driver for the hardware watchdog component on the 766 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 767 from Vision Systems and maybe others. 768 769 This watchdog simply watches your kernel to make sure it doesn't 770 freeze, and if it does, it reboots your computer after a certain 771 amount of time. 772 773 Usually a userspace daemon will notify the kernel WDT driver that 774 userspace is still alive, at regular intervals. 775 776 To compile this driver as a module, choose M here: the 777 module will be called smsc37b787_wdt. 778 779 Most people will say N. 780 781config VIA_WDT 782 tristate "VIA Watchdog Timer" 783 depends on X86 784 select WATCHDOG_CORE 785 ---help--- 786 This is the driver for the hardware watchdog timer on VIA 787 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 788 789 To compile this driver as a module, choose M here; the module 790 will be called via_wdt. 791 792 Most people will say N. 793 794config W83627HF_WDT 795 tristate "W83627HF/W83627DHG Watchdog Timer" 796 depends on X86 797 ---help--- 798 This is the driver for the hardware watchdog on the W83627HF chipset 799 as used in Advantech PC-9578 and Tyan S2721-533 motherboards 800 (and likely others). The driver also supports the W83627DHG chip. 801 This watchdog simply watches your kernel to make sure it doesn't 802 freeze, and if it does, it reboots your computer after a certain 803 amount of time. 804 805 To compile this driver as a module, choose M here: the 806 module will be called w83627hf_wdt. 807 808 Most people will say N. 809 810config W83697HF_WDT 811 tristate "W83697HF/W83697HG Watchdog Timer" 812 depends on X86 813 ---help--- 814 This is the driver for the hardware watchdog on the W83697HF/HG 815 chipset as used in Dedibox/VIA motherboards (and likely others). 816 This watchdog simply watches your kernel to make sure it doesn't 817 freeze, and if it does, it reboots your computer after a certain 818 amount of time. 819 820 To compile this driver as a module, choose M here: the 821 module will be called w83697hf_wdt. 822 823 Most people will say N. 824 825config W83697UG_WDT 826 tristate "W83697UG/W83697UF Watchdog Timer" 827 depends on X86 828 ---help--- 829 This is the driver for the hardware watchdog on the W83697UG/UF 830 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others). 831 This watchdog simply watches your kernel to make sure it doesn't 832 freeze, and if it does, it reboots your computer after a certain 833 amount of time. 834 835 To compile this driver as a module, choose M here: the 836 module will be called w83697ug_wdt. 837 838 Most people will say N. 839 840config W83877F_WDT 841 tristate "W83877F (EMACS) Watchdog Timer" 842 depends on X86 843 ---help--- 844 This is the driver for the hardware watchdog on the W83877F chipset 845 as used in EMACS PC-104 motherboards (and likely others). This 846 watchdog simply watches your kernel to make sure it doesn't freeze, 847 and if it does, it reboots your computer after a certain amount of 848 time. 849 850 To compile this driver as a module, choose M here: the 851 module will be called w83877f_wdt. 852 853 Most people will say N. 854 855config W83977F_WDT 856 tristate "W83977F (PCM-5335) Watchdog Timer" 857 depends on X86 858 ---help--- 859 This is the driver for the hardware watchdog on the W83977F I/O chip 860 as used in AAEON's PCM-5335 SBC (and likely others). This 861 watchdog simply watches your kernel to make sure it doesn't freeze, 862 and if it does, it reboots your computer after a certain amount of 863 time. 864 865 To compile this driver as a module, choose M here: the 866 module will be called w83977f_wdt. 867 868config MACHZ_WDT 869 tristate "ZF MachZ Watchdog" 870 depends on X86 871 ---help--- 872 If you are using a ZF Micro MachZ processor, say Y here, otherwise 873 N. This is the driver for the watchdog timer built-in on that 874 processor using ZF-Logic interface. This watchdog simply watches 875 your kernel to make sure it doesn't freeze, and if it does, it 876 reboots your computer after a certain amount of time. 877 878 To compile this driver as a module, choose M here: the 879 module will be called machzwd. 880 881config SBC_EPX_C3_WATCHDOG 882 tristate "Winsystems SBC EPX-C3 watchdog" 883 depends on X86 884 ---help--- 885 This is the driver for the built-in watchdog timer on the EPX-C3 886 Single-board computer made by Winsystems, Inc. 887 888 *Note*: This hardware watchdog is not probeable and thus there 889 is no way to know if writing to its IO address will corrupt 890 your system or have any real effect. The only way to be sure 891 that this driver does what you want is to make sure you 892 are running it on an EPX-C3 from Winsystems with the watchdog 893 timer at IO address 0x1ee and 0x1ef. It will write to both those 894 IO ports. Basically, the assumption is made that if you compile 895 this driver into your kernel and/or load it as a module, that you 896 know what you are doing and that you are in fact running on an 897 EPX-C3 board! 898 899 To compile this driver as a module, choose M here: the 900 module will be called sbc_epx_c3. 901 902# M32R Architecture 903 904# M68K Architecture 905 906config M54xx_WATCHDOG 907 tristate "MCF54xx watchdog support" 908 depends on M548x 909 help 910 To compile this driver as a module, choose M here: the 911 module will be called m54xx_wdt. 912 913# MicroBlaze Architecture 914 915config XILINX_WATCHDOG 916 tristate "Xilinx Watchdog timer" 917 depends on MICROBLAZE 918 ---help--- 919 Watchdog driver for the xps_timebase_wdt ip core. 920 921 IMPORTANT: The xps_timebase_wdt parent must have the property 922 "clock-frequency" at device tree. 923 924 To compile this driver as a module, choose M here: the 925 module will be called of_xilinx_wdt. 926 927# MIPS Architecture 928 929config ATH79_WDT 930 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 931 depends on ATH79 932 help 933 Hardware driver for the built-in watchdog timer on the Atheros 934 AR71XX/AR724X/AR913X SoCs. 935 936config BCM47XX_WDT 937 tristate "Broadcom BCM47xx Watchdog Timer" 938 depends on BCM47XX 939 help 940 Hardware driver for the Broadcom BCM47xx Watchog Timer. 941 942config RC32434_WDT 943 tristate "IDT RC32434 SoC Watchdog Timer" 944 depends on MIKROTIK_RB532 945 help 946 Hardware driver for the IDT RC32434 SoC built-in 947 watchdog timer. 948 949 To compile this driver as a module, choose M here: the 950 module will be called rc32434_wdt. 951 952config INDYDOG 953 tristate "Indy/I2 Hardware Watchdog" 954 depends on SGI_HAS_INDYDOG 955 help 956 Hardware driver for the Indy's/I2's watchdog. This is a 957 watchdog timer that will reboot the machine after a 60 second 958 timer expired and no process has written to /dev/watchdog during 959 that time. 960 961config JZ4740_WDT 962 tristate "Ingenic jz4740 SoC hardware watchdog" 963 depends on MACH_JZ4740 964 select WATCHDOG_CORE 965 help 966 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 967 968config WDT_MTX1 969 tristate "MTX-1 Hardware Watchdog" 970 depends on MIPS_MTX1 971 help 972 Hardware driver for the MTX-1 boards. This is a watchdog timer that 973 will reboot the machine after a 100 seconds timer expired. 974 975config PNX833X_WDT 976 tristate "PNX833x Hardware Watchdog" 977 depends on SOC_PNX8335 978 help 979 Hardware driver for the PNX833x's watchdog. This is a 980 watchdog timer that will reboot the machine after a programmable 981 timer has expired and no process has written to /dev/watchdog during 982 that time. 983 984config SIBYTE_WDOG 985 tristate "Sibyte SoC hardware watchdog" 986 depends on CPU_SB1 987 help 988 Watchdog driver for the built in watchdog hardware in Sibyte 989 SoC processors. There are apparently two watchdog timers 990 on such processors; this driver supports only the first one, 991 because currently Linux only supports exporting one watchdog 992 to userspace. 993 994 To compile this driver as a loadable module, choose M here. 995 The module will be called sb_wdog. 996 997config AR7_WDT 998 tristate "TI AR7 Watchdog Timer" 999 depends on AR7 1000 help 1001 Hardware driver for the TI AR7 Watchdog Timer. 1002 1003config TXX9_WDT 1004 tristate "Toshiba TXx9 Watchdog Timer" 1005 depends on CPU_TX39XX || CPU_TX49XX 1006 select WATCHDOG_CORE 1007 help 1008 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1009 1010config OCTEON_WDT 1011 tristate "Cavium OCTEON SOC family Watchdog Timer" 1012 depends on CPU_CAVIUM_OCTEON 1013 default y 1014 select EXPORT_UASM if OCTEON_WDT = m 1015 help 1016 Hardware driver for OCTEON's on chip watchdog timer. 1017 Enables the watchdog for all cores running Linux. It 1018 installs a NMI handler and pokes the watchdog based on an 1019 interrupt. On first expiration of the watchdog, the 1020 interrupt handler pokes it. The second expiration causes an 1021 NMI that prints a message. The third expiration causes a 1022 global soft reset. 1023 1024 When userspace has /dev/watchdog open, no poking is done 1025 from the first interrupt, it is then only poked when the 1026 device is written. 1027 1028config BCM63XX_WDT 1029 tristate "Broadcom BCM63xx hardware watchdog" 1030 depends on BCM63XX 1031 help 1032 Watchdog driver for the built in watchdog hardware in Broadcom 1033 BCM63xx SoC. 1034 1035 To compile this driver as a loadable module, choose M here. 1036 The module will be called bcm63xx_wdt. 1037 1038config LANTIQ_WDT 1039 tristate "Lantiq SoC watchdog" 1040 depends on LANTIQ 1041 help 1042 Hardware driver for the Lantiq SoC Watchdog Timer. 1043 1044# PARISC Architecture 1045 1046# POWERPC Architecture 1047 1048config GEF_WDT 1049 tristate "GE Watchdog Timer" 1050 depends on GE_FPGA 1051 ---help--- 1052 Watchdog timer found in a number of GE single board computers. 1053 1054config MPC5200_WDT 1055 bool "MPC52xx Watchdog Timer" 1056 depends on PPC_MPC52xx 1057 help 1058 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1059 1060config 8xxx_WDT 1061 tristate "MPC8xxx Platform Watchdog Timer" 1062 depends on PPC_8xx || PPC_83xx || PPC_86xx 1063 help 1064 This driver is for a SoC level watchdog that exists on some 1065 Freescale PowerPC processors. So far this driver supports: 1066 - MPC8xx watchdogs 1067 - MPC83xx watchdogs 1068 - MPC86xx watchdogs 1069 1070 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1071 1072config MV64X60_WDT 1073 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1074 depends on MV64X60 1075 1076config PIKA_WDT 1077 tristate "PIKA FPGA Watchdog" 1078 depends on WARP 1079 default y 1080 help 1081 This enables the watchdog in the PIKA FPGA. Currently used on 1082 the Warp platform. 1083 1084config BOOKE_WDT 1085 tristate "PowerPC Book-E Watchdog Timer" 1086 depends on BOOKE || 4xx 1087 ---help--- 1088 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1089 MPC85xx SOCs and the IBM PowerPC 440. 1090 1091 Please see Documentation/watchdog/watchdog-api.txt for 1092 more information. 1093 1094config BOOKE_WDT_DEFAULT_TIMEOUT 1095 int "PowerPC Book-E Watchdog Timer Default Timeout" 1096 depends on BOOKE_WDT 1097 default 38 if FSL_BOOKE 1098 range 0 63 if FSL_BOOKE 1099 default 3 if !FSL_BOOKE 1100 range 0 3 if !FSL_BOOKE 1101 help 1102 Select the default watchdog timer period to be used by the PowerPC 1103 Book-E watchdog driver. A watchdog "event" occurs when the bit 1104 position represented by this number transitions from zero to one. 1105 1106 For Freescale Book-E processors, this is a number between 0 and 63. 1107 For other Book-E processors, this is a number between 0 and 3. 1108 1109 The value can be overridden by the wdt_period command-line parameter. 1110 1111# PPC64 Architecture 1112 1113config WATCHDOG_RTAS 1114 tristate "RTAS watchdog" 1115 depends on PPC_RTAS 1116 help 1117 This driver adds watchdog support for the RTAS watchdog. 1118 1119 To compile this driver as a module, choose M here. The module 1120 will be called wdrtas. 1121 1122# S390 Architecture 1123 1124config ZVM_WATCHDOG 1125 tristate "z/VM Watchdog Timer" 1126 depends on S390 1127 help 1128 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1129 provide a virtual watchdog timer to their guest that cause a 1130 user define Control Program command to be executed after a 1131 timeout. 1132 1133 To compile this driver as a module, choose M here. The module 1134 will be called vmwatchdog. 1135 1136# SUPERH (sh + sh64) Architecture 1137 1138config SH_WDT 1139 tristate "SuperH Watchdog" 1140 depends on SUPERH && (CPU_SH3 || CPU_SH4) 1141 help 1142 This driver adds watchdog support for the integrated watchdog in the 1143 SuperH processors. If you have one of these processors and wish 1144 to have watchdog support enabled, say Y, otherwise say N. 1145 1146 As a side note, saying Y here will automatically boost HZ to 1000 1147 so that the timer has a chance to clear the overflow counter. On 1148 slower systems (such as the SH-2 and SH-3) this will likely yield 1149 some performance issues. As such, the WDT should be avoided here 1150 unless it is absolutely necessary. 1151 1152 To compile this driver as a module, choose M here: the 1153 module will be called shwdt. 1154 1155# SPARC Architecture 1156 1157# SPARC64 Architecture 1158 1159config WATCHDOG_CP1XXX 1160 tristate "CP1XXX Hardware Watchdog support" 1161 depends on SPARC64 && PCI 1162 ---help--- 1163 This is the driver for the hardware watchdog timers present on 1164 Sun Microsystems CompactPCI models CP1400 and CP1500. 1165 1166 To compile this driver as a module, choose M here: the 1167 module will be called cpwatchdog. 1168 1169 If you do not have a CompactPCI model CP1400 or CP1500, or 1170 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1171 you should say N to this option. 1172 1173config WATCHDOG_RIO 1174 tristate "RIO Hardware Watchdog support" 1175 depends on SPARC64 && PCI 1176 help 1177 Say Y here to support the hardware watchdog capability on Sun RIO 1178 machines. The watchdog timeout period is normally one minute but 1179 can be changed with a boot-time parameter. 1180 1181# XTENSA Architecture 1182 1183# Xen Architecture 1184 1185config XEN_WDT 1186 tristate "Xen Watchdog support" 1187 depends on XEN 1188 help 1189 Say Y here to support the hypervisor watchdog capability provided 1190 by Xen 4.0 and newer. The watchdog timeout period is normally one 1191 minute but can be changed with a boot-time parameter. 1192 1193config UML_WATCHDOG 1194 tristate "UML watchdog" 1195 depends on UML 1196 1197# 1198# ISA-based Watchdog Cards 1199# 1200 1201comment "ISA-based Watchdog Cards" 1202 depends on ISA 1203 1204config PCWATCHDOG 1205 tristate "Berkshire Products ISA-PC Watchdog" 1206 depends on ISA 1207 ---help--- 1208 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1209 This card simply watches your kernel to make sure it doesn't freeze, 1210 and if it does, it reboots your computer after a certain amount of 1211 time. This driver is like the WDT501 driver but for different 1212 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1213 watchdog cards can be ordered from <http://www.berkprod.com/>. 1214 1215 To compile this driver as a module, choose M here: the 1216 module will be called pcwd. 1217 1218 Most people will say N. 1219 1220config MIXCOMWD 1221 tristate "Mixcom Watchdog" 1222 depends on ISA 1223 ---help--- 1224 This is a driver for the Mixcom hardware watchdog cards. This 1225 watchdog simply watches your kernel to make sure it doesn't freeze, 1226 and if it does, it reboots your computer after a certain amount of 1227 time. 1228 1229 To compile this driver as a module, choose M here: the 1230 module will be called mixcomwd. 1231 1232 Most people will say N. 1233 1234config WDT 1235 tristate "WDT Watchdog timer" 1236 depends on ISA 1237 ---help--- 1238 If you have a WDT500P or WDT501P watchdog board, say Y here, 1239 otherwise N. It is not possible to probe for this board, which means 1240 that you have to inform the kernel about the IO port and IRQ that 1241 is needed (you can do this via the io and irq parameters) 1242 1243 To compile this driver as a module, choose M here: the 1244 module will be called wdt. 1245 1246# 1247# PCI-based Watchdog Cards 1248# 1249 1250comment "PCI-based Watchdog Cards" 1251 depends on PCI 1252 1253config PCIPCWATCHDOG 1254 tristate "Berkshire Products PCI-PC Watchdog" 1255 depends on PCI 1256 ---help--- 1257 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1258 This card simply watches your kernel to make sure it doesn't freeze, 1259 and if it does, it reboots your computer after a certain amount of 1260 time. The card can also monitor the internal temperature of the PC. 1261 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1262 1263 To compile this driver as a module, choose M here: the 1264 module will be called pcwd_pci. 1265 1266 Most people will say N. 1267 1268config WDTPCI 1269 tristate "PCI-WDT500/501 Watchdog timer" 1270 depends on PCI 1271 ---help--- 1272 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1273 1274 If you have a PCI-WDT501 watchdog board then you can enable the 1275 temperature sensor by setting the type parameter to 501. 1276 1277 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1278 can do this via the tachometer parameter. Only do this if you have a 1279 fan tachometer actually set up. 1280 1281 To compile this driver as a module, choose M here: the 1282 module will be called wdt_pci. 1283 1284# 1285# USB-based Watchdog Cards 1286# 1287 1288comment "USB-based Watchdog Cards" 1289 depends on USB 1290 1291config USBPCWATCHDOG 1292 tristate "Berkshire Products USB-PC Watchdog" 1293 depends on USB 1294 ---help--- 1295 This is the driver for the Berkshire Products USB-PC Watchdog card. 1296 This card simply watches your kernel to make sure it doesn't freeze, 1297 and if it does, it reboots your computer after a certain amount of 1298 time. The card can also monitor the internal temperature of the PC. 1299 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1300 1301 To compile this driver as a module, choose M here: the 1302 module will be called pcwd_usb. 1303 1304 Most people will say N. 1305 1306endif # WATCHDOG 1307