Switch to the generic noncoherent direct mapping implementation.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Acked-by: NGreentime Hu <greentime@andestech.com>
Tested-by: NGreentime Hu <greentime@andestech.com>

This patch adds Makefile, Kconfig and vmlinux.lds.S files required for building
an nds32 kernel.
Signed-off-by: NVincent Chen <vincentc@andestech.com>
Signed-off-by: NGreentime Hu <greentime@andestech.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>