Re: [PATCH 2.6.X] Early console for Cobalt

[Kumba <kumba@gentoo.org>]

Atsushi Nemoto wrote:
>>>>>> On Sun, 12 Feb 2006 17:10:25 +0000, Peter Horton <pdh@colonel-panic.org> said:
> pdh> Adds early console support for Cobalts.
> 
> We already have EARLY_PRINTK.  How about using it?  (like dec does)

I already tried getting early printk to work....Either it wasn't initializing 
early enough for my needs, I was enabling it incorrectly, or it just doesn't 
work on Cobalt.  This does work, however, and already pointed out one obvious 
flaw I have in a patch I've been using on Cobalt (setting cpu_scache_line_size 
to > 0 when cobalt lacks an scache).

For systems where the serial device can be difficult to use until initialized 
late in the boot cycle (Octane comes to mind), early_printk won't function either.

Maybe some kind of framework is needed for defining the kinds of early console 
various systems can support?


--Kumba

-- 
Gentoo/MIPS Team Lead
Gentoo Foundation Board of Trustees

"Such is oft the course of deeds that move the wheels of the world: small hands 
do them because they must, while the eyes of the great are elsewhere."  --Elrond