From owner-freebsd-embedded@FreeBSD.ORG  Wed Sep 19 10:00:42 2007
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Date: Wed, 19 Sep 2007 12:00:48 +0200
From: Marius Nuennerich <marius.nuennerich@gmx.de>
To: Philip Schulz <phs@deadc0.de>
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Cc: freebsd-arm@freebsd.org, freebsd-embedded@freebsd.org
Subject: Re: Porting FreeBSD to the Neo1973 (arm920t)
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On Wed, 19 Sep 2007 10:55:39 +0200
Philip Schulz <phs@deadc0.de> wrote:

> Am 19.09.2007 um 09:50 schrieb Marius Nuennerich:
> 
> > On Tue, 18 Sep 2007 18:22:54 +0200
> > Rafal Jaworowski <raj@semihalf.com> wrote:
> 
> [...]
> 
> >>
> >> For FreeBSD/powerpc running with U-Boot we have loader(8) running  
> >> as a
> >> second stage bootloader on top of it (as a standalone app), which  
> >> loads
> >> and runs the kernel, providing it with full metadata etc. This  
> >> however
> >> needs changes to U-Boot itself, and they were not merged with its
> >> mainline yet, but I can provide patches if you're intersted. For the
> >> loader(8) piece you can have a look at some preliminary approach  
> >> in the
> >> e500 branch in P4 for reference: in particular it has a common  
> >> library
> >> that is intended to be used also on ARM, MIPS etc., only the lowest
> >> level gluing needs equivalent asm routines.
> >
> > Do we really need loader(8)?
> 
> You don't absolutely need it, but you probably want it.
> 
> The loader gives you the ability to pass parameters to the kernel.  
> Without
> the loader, you can still boot the kernel, however you can't even  
> (easily)
> tell it to do a verbose boot.

Maybe we can tell u-boot how to do that or tell the kernel how to read
the u-boot environment...