[RFC][Patch 3/4] U-Boot-V2:ARM:OMAP3: Add support for SDP3430 Development Platform

This patch introduces support for OMAP Boards and an example of OMAP3430 based SDP3430 platform is introduced. This patch provides a very basic SRAM boot support. The u-boot.bin file generated is around 28K in size and may be delivered as part of Peripheral boot process as described in http://focus.ti.com/pdfs/wtbu/swpu114g.pdf page 3728 section 26.4.5. I have used SRAM for x-loader and heap and stack are in SDRAM.

SDP3430 details can be seen here: http://www.ti.com/omap3430_devplatform
NOTE: There is further support required for this to be completely useful. Probably requires M18 CFI support, Nand 8 bit support, MMC(and FAT), OneNAND support and USB support to be fully functional.

Other platforms that may possibly leverage out of these are:
a) OMAP3430 based Zoom MDK: http://www.omapzoom.org/
b) OMAP3530 based beagle board: http://beagleboard.org/
c) Pandora: http://openpandora.org/
d) OMAP353x based EVM: http://www.mistralsolutions.com/business_divisons/omap_3evm.php
And others that I dont know of ;). Please feel free to add.. Ofcourse.. we could move all old OMAPs accross also..

Signed-off-by: Nishanth Menon<x0nishan@ti.com>