hi U will have to play with ur bat registers. U can map ur devices non cachable through bat registers.
u will be having a function in arch/ppc/kernel/(ur arch)setup.c . see there & use the bats if still have problem send me ur setup file thanx Bhupi Linux+Hypertransport --->Silicon www.gdatech.com --- deepesh at india.tejasnetworks.com wrote: > > I had enabled the Data Cache. I forgot to mention > that. > > Deepesh > > > > > On Mon, 11 Nov 2002 deepesh at india.tejasnetworks.com > wrote: > > > > > > > Dear All, > > > > > > I am using Power PC. The system which I am using > takes 2 minutes more than > > usual for the software in the system to come up > without cache > > enabling. These 2 minutes are really crucial. > > But there are problems when I enabled cache. The > devices which I am using > > are mmapped. I do not want cache to be enabled for > the memory mapped > > devices. When cache is enabled, none of the > mmapped devices work in the > > usual way. How do I selectively disable the cache > for the mmapped devices? > > > > > > Thank you, > > Deepesh > > > > > > -- > > D.Deepesh > R&D Engineer, > Tejas Networks > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
