How to add new BSP

[silverio.di at qem.it]

Hi to all,
after a long time I try to create a BSP for my new CARD (with SH7045F)
and I've called it gensh2a for ../lib/libbsp/sh/gensh2a.

Unfortunately I isn't able to understand what are the right steps to
introduce a new BSP in the rtems toolchain, in other words I've done
the new files but how I can said to rtems make that is available a
new BSP ? How to create or modify the support files for automake, etc....

Thank you in advance for sugestions

Silverio Diquigiovanni