[WATCHDOG] HP ProLiant WatchDog driver

Hp is providing a Hardware WatchDog Timer driver that will only work with the
specific HW Timer located in the HP ProLiant iLO 2 ASIC. The iLO 2 HW Timer
will generate a Non-maskable Interrupt (NMI) 9 seconds before physically
resetting the server, by removing power, so that the event can be logged to
the HP Integrated Management Log (IML), a Non-Volatile Random Access Memory
(NVRAM). The logging of the event is performed using the HP ProLiant ROM via
an Industry Standard access known as a BIOS Service Directory Entry.

Signed-off-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

drivers/watchdog/Kconfig

@@ -402,6 +402,18 @@ config IT8712F_WDT
 	  To compile this driver as a module, choose M here: the
 	  module will be called it8712f_wdt.
 
+config HP_WATCHDOG
+	tristate "HP Proliant iLO 2 Hardware Watchdog Timer"
+	depends on X86
+	help
+	  A software monitoring watchdog and NMI sourcing driver. This driver
+	  will detect lockups and provide stack trace. Also, when an NMI
+	  occurs this driver will make the necessary BIOS calls to log
+	  the cause of the NMI. This is a driver that will only load on a
+	  HP ProLiant system with a minimum of iLO2 support.
+	  To compile this driver as a module, choose M here: the
+	  module will be called hpwdt.
+
 config SC1200_WDT
 	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
 	depends on X86

drivers/watchdog/Makefile

@@ -67,6 +67,7 @@ obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o
 obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o
 obj-$(CONFIG_ITCO_WDT) += iTCO_wdt.o iTCO_vendor_support.o
 obj-$(CONFIG_IT8712F_WDT) += it8712f_wdt.o
+obj-$(CONFIG_HP_WATCHDOG) += hpwdt.o
 obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
 obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o
 obj-$(CONFIG_PC87413_WDT) += pc87413_wdt.o