[ARM] Kirkwood: support for Seagate DockStar

This patch adds support for the Seagate FreeAgent DockStar,
a Marvell SheevaPlug variant.

Signed-off-by: Eric Cooper <ecc@cmu.edu>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index cc25501..3d5d66e7 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -58,6 +58,12 @@
 	  QNAP TS-410, TS-410U, TS-419P and TS-419U Turbo NAS
 	  devices.
 
+config MACH_DOCKSTAR
+	bool "Seagate FreeAgent DockStar"
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Seagate FreeAgent DockStar.
+
 config MACH_OPENRD
         bool