> 1) I found in my testing that you can do things to the north bridge > that > will crash it in such a way that a reset does not fully fix. It's > very > sneaky, things just start behaving really weird and your code just > seems > to start failing for no good reason. But not so bad as to suspect > that > its hardware. Especially if you are doinking with the register > settings > at the time. > > The only fix is to _remove_ power from the board.
Many chips have debug registers (often not documented in public literature) that seriously change the behaviour of the chip; and such debug registers are often not reset by a simple chip reset (which is a good thing really). Most shipping hardware (esp. "B" or later revs) doesn't need programming any of those registers for proper operation. Segher -- linuxbios mailing list [email protected] http://www.openbios.org/mailman/listinfo/linuxbios
