I'm basically done with my task of porting linux to our SR71000-based
board. I'm getting ready to start feeding patches to Ralf, and
something occured to me....
Sometimes, in some places, we use CONFIG_ options to select the
apropriate CPU. Other places, we probe for the CPU based on the PRID
In some places, the reason for the choice is clear -- it's just much
easier to select the cache library based on a CONFIG_ option in a
Makefile than trying to do run-time assignment of many function
However, is some places, the choice is not clear. In cpu-probe.c, for
example, several of the CPU identification routines are wrapped in
#ifdef's -- odd, since the wrong 'case' of the switch statements
should never get executed, even if compiled in....
So, what's the rule here? When do I used #ifdef and when do I just
let the PRID stuff work it's magic?
I mean, heck... it might be nice to put a check to see if the detected
CPU matches what the kernel was compiled for...
Matthew D. Dharm Senior Software Designer
Momentum Computer Inc. 1815 Aston Ave. Suite 107
(760) 431-8663 X-115 Carlsbad, CA 92008-7310
Momentum Works For You www.momenco.com