WATCHDOG: Add watchdog driver for OCTEON SOCs

[sfrench/cifs-2.6.git] / drivers / watchdog / Kconfig

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index afcfacc9bbe2f0b8718c4ef3a5b8cc6a7c7e62b3..b04b1846893265563aaa9abee1a589c35d8ddc42 100644 (file)
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -875,6 +875,24 @@ config TXX9_WDT
        help
          Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
 
+config OCTEON_WDT
+       tristate "Cavium OCTEON SOC family Watchdog Timer"
+       depends on CPU_CAVIUM_OCTEON
+       default y
+       select EXPORT_UASM if OCTEON_WDT = m
+       help
+         Hardware driver for OCTEON's on chip watchdog timer.
+         Enables the watchdog for all cores running Linux. It
+         installs a NMI handler and pokes the watchdog based on an
+         interrupt.  On first expiration of the watchdog, the
+         interrupt handler pokes it.  The second expiration causes an
+         NMI that prints a message. The third expiration causes a
+         global soft reset.
+
+         When userspace has /dev/watchdog open, no poking is done
+         from the first interrupt, it is then only poked when the
+         device is written.
+
 # PARISC Architecture
 
 # POWERPC Architecture