Blackfin: on-chip RTC controller driver

This patch implements the driver necessary use the Analog Devices Blackfin
processor's on-chip RTC controller.
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Cc: 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>

drivers/rtc/Kconfig

@@ -354,4 +354,14 @@ config RTC_DRV_V3020
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-v3020.
 
+config RTC_DRV_BFIN
+	tristate "Blackfin On-Chip RTC"
+	depends on RTC_CLASS && BFIN
+	help
+	  If you say yes here you will get support for the
+	  Blackfin On-Chip Real Time Clock.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-bfin.
+
 endmenu

drivers/rtc/Makefile

@@ -38,3 +38,4 @@ obj-$(CONFIG_RTC_DRV_MAX6902)	+= rtc-max6902.o
 obj-$(CONFIG_RTC_DRV_V3020)	+= rtc-v3020.o
 obj-$(CONFIG_RTC_DRV_AT91RM9200)+= rtc-at91rm9200.o
 obj-$(CONFIG_RTC_DRV_SH)	+= rtc-sh.o
+obj-$(CONFIG_RTC_DRV_BFIN)	+= rtc-bfin.o