On Thursday 20 April 2006 23:38, Benjamin Herrenschmidt wrote: > On Thu, 2006-04-20 at 14:55 -0700, Eugene Surovegin wrote: > > On Thu, Apr 20, 2006 at 11:10:55PM +0200, Gerhard Pircher wrote: > > > Well, Freescale's PPC programming environment manual clearly states > > > that this will not work on G4 CPUs (74xx). Also Benjamin Herrenschmidt > > > told me, that this implementation will not work for the reasons I > > > mentioned before. The approach I'm trying to implement was his idea, so > > > I have to trust in him. > > > > Well, you aren't the first person who tries to run G4 with > > CONFIG_NOT_COHERENT_CACHE. This was done before and I don't remember > > that those people had to implement anything as complex as you are > > trying to do. > > > > You can try asking on #mklinux. It always better to ask people who > > actually _did_ this :). > > > > In fact, I just grepped 2.6 and found > > #ifdef(CONFIG_NOT_COHERENT_CACHE) in syslib/mv64x60.c. Guess what > > systems usually have this type of bridge? Not 4xx/8xx, that's for sure. > > I think some folks tried ... and failed. > > Ben.
I'm not claiming to understand all of the issues here, but I have some MV64460 / MPC7448-based systems, and they only boot if CONFIG_NOT_COHERENT_CACHE=y - Brent -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
