On Wed, Nov 07, 2007 at 04:55:10PM +0000, Maciej W. Rozycki wrote:
> On Tue, 30 Oct 2007, Martin Michlmayr wrote:
> > * Thomas Bogendoerfer <email@example.com> [2007-09-11 12:44]:
> > > Disable EARLY PRINTK, because it breaks serial console
> > Ralf, at the moment IP22 output stops after "Serial: IP22 Zilog driver
> > (1 chips).". Can you put this patch in until there's a real fix?
> Is it by any chance the same problem that I noticed with the DECstation
> and reported in the thread starting at:
it's the same problem
> "http://marc.info/?l=linux-kernel&m=119030963931879&w=2"? If so, there is
> a fix for the DECstation provided somewhere down the discussion which you
> may consider porting to IP22. I think the change to the serial core by
> RMK mentioned there has already been applied upstream.
I ported your fix, but it didn't work for me. Maybe because the
IP22 zilog driver is still a little bit different than the DEC one.
> Ideally, of course, all the SCC drivers should get merged eventually, but
> due to subtle (and sometimes broken, as it is the case with the
> DECstation) differences in wiring for various systems it may never really
> happen, sigh...
having a more generic zilog driver with platform backends is quite high on
my todo list. But I won't make promisses when this happens...
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea. [ RFC1925, 2.3 ]