This section of the wiki contains information about the port of RISC OS to the ARM Cortex-A8 architecture. The initial target is the OMAP 3 family of system on chip devices from Texas Instruments, which are in turn used in their ‘Beagleboard’ reference designs.
Getting started with the OMAP 3:
Technical information for the OMAP 3 specifically:
General Cortex-A8 information: