From: John Rigby <jcri...@gmail.com> Date: Thu, 7 May 2009 20:02:53 -0600
> Also don't forget that the register map is the same on 512x, mx and > coldfire platforms but not on the other ppc platforms so if you want > to one binary to rule them all you will need to have an offest table > or some such. I would suggest using ->read_reg() ->write_reg() methods for abstracting this. That's how we handle all of the different way ESP scsi chips have their registers wired up. I/O register reads take hundreds, if not thousands of CPU cycles so, relatively speaking, the indirection costs absolutely nothing. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
