davinci: Initial support for Omapl138-Hawkboard

This patch adds initial support for the Hawkboard-L138 system
It is under the machine name "omapl138_hawkboard".
This system is based on the da850 davinci CPU architecture.
Information on these system may be found at http://www.hawkboard.org.
Basic support for the UART console is included in this patch.
It's tested with latest Angstrom File Systems like ramdisk
from http://alturl.com/imb45.

Signed-off-by: Victor Rodriguez <victor.rodriguez@sasken.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 9aca60c..b77b860 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -193,6 +193,14 @@
 	  System on Module.  Information on this SoM may be found at
 	  http://www.mitydsp.com
 
+config MACH_OMAPL138_HAWKBOARD
+	bool "TI AM1808 / OMAPL-138 Hawkboard platform"
+	depends on ARCH_DAVINCI_DA850
+	help
+	  Say Y here to select the TI AM1808 / OMAPL-138 Hawkboard platform .
+	  Information of this board may be found at
+	  http://www.hawkboard.org/
+
 config DAVINCI_MUX
 	bool "DAVINCI multiplexing support"
 	depends on ARCH_DAVINCI