MXC: mx21ads base support

[PATCH v6] MXC: mx21ads base support

Base machine support for the  Freescale i.MX21ADS
(M9328MX21ADSE) Application Development System.

Signed-off-by: Ivo Clarysse <ivo.clarysse@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx2/Kconfig b/arch/arm/mach-mx2/Kconfig
index 42a7888..7ce3712 100644
--- a/arch/arm/mach-mx2/Kconfig
+++ b/arch/arm/mach-mx2/Kconfig
@@ -18,6 +18,13 @@
 
 comment "MX2 platforms:"
 
+config MACH_MX21ADS
+	bool "MX21ADS platform"
+	depends on MACH_MX21
+	help
+	  Include support for MX21ADS platform. This includes specific
+	  configurations for the board and its peripherals.
+
 config MACH_MX27ADS
 	bool "MX27ADS platform"
 	depends on MACH_MX27