rtc: Au1000 On-Chip Counter0-as-RTC driver.

Simple driver which uses the Au1xxx Time-Of-Year counter (counter0)
as a 1Hz RTC.

[akpm@linux-foundation.org: repair Kconfig]
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 92c2db6..3b1c7aa 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -638,6 +638,16 @@
 	  will be used. The default of zero is normally OK to use, but
 	  on some systems other software needs to use that register.
 
+config RTC_DRV_AU1XXX
+	tristate "Au1xxx Counter0 RTC support"
+	depends on SOC_AU1X00
+	help
+	  This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
+	  counter) to be used as a RTC.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-au1xxx.
+
 config RTC_DRV_BFIN
 	tristate "Blackfin On-Chip RTC"
 	depends on BLACKFIN && !BF561