spi interface

i am a beginner of beagleboard. i want to configure spi on my
beagleboardxm using Angstrom. i don't know where to start with. i need
the initial steps or link to follow...plz help me .Any help would be
appreciated.
Thanks in advance .

a best link to start with spi is
http://elinux.org/BeagleBoard/SPI