On Tue, Oct 12, 2004 at 04:34:32PM -0700, Eugene Surovegin wrote: > On Wed, Oct 13, 2004 at 12:03:21AM +0100, Jon Masters wrote: > > On Tue, 12 Oct 2004 14:36:34 -0700, Eugene Surovegin <ebs at ebshome.net> > > wrote: > > > > > Did you use ioremap to get valid kernel virtual address for your > > > device registers? You generally cannot just use physical address to > > > access device from the device driver. > > > > Possibly also use io_block_mapping on ppc to map a block of IO memory > > before ioremapping. > > Yes, this is possible but considered obsoleted and not-recommended way > of accessing device registers.
I realised that after I said it, old habbit. Jon.
