[IDE] Add driver for Sibyte Swarm evaluation board

This driver supports the IDE port on the Sibyte Swarm evaluation boards
and it's relatives for the BCM1250 family of systems on a chip.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 42e5b81..ed2bc87 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -787,6 +787,10 @@
 	  This option enables the use of the sleep LED as a hard drive
 	  activity LED.
 
+config BLK_DEV_IDE_SWARM
+	tristate "IDE for Sibyte evaluation boards"
+	depends on SIBYTE_SB1xxx_SOC
+
 config BLK_DEV_IDE_AU1XXX
        bool "IDE for AMD Alchemy Au1200"
        depends on SOC_AU1200