tree fad5b40a25f7ab382f78aef969a07ea8fa3bfd39
parent 9bf78d7cf240c9a15b32281f421a626c1a3a0d5b
author rick <rick@andestech.com> 1390554868 +0800
committer Kuan-Yu Kuo <ken.kuoky@gmail.com> 1390908181 +0800

nds32: add support for leopard and orca board boot flow auto detect

hardware difference between leopard and orca as below:

flash setting     leoaprd     orca
bank size         32MB        64MB
bus width         32-bits     16-bits

Signed-off-by: rick <rick@andestech.com>
Signed-off-by: Kuan-Yu Kuo <ken.kuoky@gmail.com>