Thank you everyone for your suggestions. It looks like I can't determine the 8xx variant from software in a reliable way. The idea about using pull up/pull down resistors is a good one - but the boards have already been manufactured, so I am not in the position to be able to hard-wire the information in this way.
The reason I want to know the 8xx variant, however, is to optimise s/w for the performance of the chip. So, I guess I can get away with just knowing the clock speeds, and the cache sizes. I know how to determine the clock speeds (they're in /proc/cpuinfo), but can anybody tell me how to determine the cache sizes (in a non-destructive manner such as is used by ppcboot). Thanks, Alex ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
