MIPS: DS1286: New RTC driver

This driver replaces the broken DS1286 driver in drivers/char and gives back
RTC support for SGI IP22 and IP28 machines.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index b57fba5..2421700 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -352,6 +352,11 @@
 	help
 	  If you say yes here you get support for the Dallas DS1216 RTC chips.
 
+config RTC_DRV_DS1286
+	tristate "Dallas DS1286"
+	help
+	  If you say yes here you get support for the Dallas DS1286 RTC chips.
+
 config RTC_DRV_DS1302
 	tristate "Dallas DS1302"
 	depends on SH_SECUREEDGE5410