[adm5120] add watchdog driver

Here is the driver for the hardware watchdog timer
in ADM5120 SoC. Patch is against current svn Kamikaze.

Here is only kernel driver. To activate watchdog you have
to use some userspace software writing to watchdog
device. I think there is one in busybox.

Signed-off-by: Ondrej Zajicek <santiago@crfreenet.org>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9961 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/adm5120/patches-2.6.23/310-adm5120_wdt.patch

@@ -0,0 +1,33 @@
+diff -urN linux-2.6.23.11-old/drivers/char/watchdog/Kconfig linux-2.6.23.11/drivers/char/watchdog/Kconfig
+--- linux-2.6.23.11-old/drivers/char/watchdog/Kconfig	2007-12-15 04:50:05.000000000 +0100
++++ linux-2.6.23.11/drivers/char/watchdog/Kconfig	2007-12-26 20:17:56.000000000 +0100
+@@ -583,6 +583,18 @@
+ 
+ # MIPS Architecture
+ 
++config ADM5120_WDT
++	tristate "Infineon ADM5120 SoC hardware watchdog"
++	depends on WATCHDOG && MIPS_ADM5120
++	help
++	  This is a driver for hardware watchdog integrated in Infineon
++	  ADM5120 SoC. This watchdog simply watches your kernel to make sure
++	  it doesn't freeze, and if it does, it reboots your computer after a
++	  certain amount of time.
++
++	  To compile this driver as a module, choose M here: the module will be
++	  called adm5120_wdt.
++
+ config INDYDOG
+ 	tristate "Indy/I2 Hardware Watchdog"
+ 	depends on SGI_IP22
+diff -urN linux-2.6.23.11-old/drivers/char/watchdog/Makefile linux-2.6.23.11/drivers/char/watchdog/Makefile
+--- linux-2.6.23.11-old/drivers/char/watchdog/Makefile	2007-12-15 04:50:05.000000000 +0100
++++ linux-2.6.23.11/drivers/char/watchdog/Makefile	2007-12-26 20:19:24.000000000 +0100
+@@ -87,6 +87,7 @@
+ # M68KNOMMU Architecture
+ 
+ # MIPS Architecture
++obj-$(CONFIG_ADM5120_WDT) += adm5120_wdt.o
+ obj-$(CONFIG_INDYDOG) += indydog.o
+ obj-$(CONFIG_WDT_MTX1)	+= mtx-1_wdt.o
+ obj-$(CONFIG_WDT_RM9K_GPI) += rm9k_wdt.o