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Date: Thu, 27 Sep 2007 22:41:33 +0200
From: Marius Nuennerich <marius.nuennerich@gmx.de>
To: freebsd-arm@freebsd.org
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Subject: Re: Comment bug in locore.S?
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On Thu, 27 Sep 2007 19:03:39 +0200
Olivier Houchard <mlfbsd@ci0.org> wrote:

> On Thu, Sep 27, 2007 at 05:18:22PM +0200, Marius Nuennerich wrote:
> > Hi all,
> > 
> 
> Hi Marius,
> 
> > I'm still trying to boot FreeBSD on the neo1973. So far I managed to
> > put bytes over the serial console so I can see where I am. At the
> > moment the (virtual) machine crashes in locore.S (1.16) line 170:
> > ldr pc, .Lvirt_done
> > 
> > qemu: fatal: Trying to execute code outside RAM or ROM at 0xc0008???
> > 
> > Which I don't understand because the section should be mapped by the
> > MMU to 0x30008??? at that time.
> > 
> > In line 137 the sequence in the comment is described as
> > /* # of sections, PA|attr, VA */
> > but in line 185 the order is
> > n_sec, VA, PA|attr
> > 
> > Is the comment wrong?
> > 
> 
> No the comment is right, 0xc0000000 should be mapped.
> Did you define STARTUP_PAGETABLE_ADDR ? It's not marked as such, but it is
> mandatory now.

Yes, in the kernel config there are these lines:
makeoptions     KERNPHYSADDR=0x30008000
makeoptions     KERNVIRTADDR=0xc0000000
options         KERNPHYSADDR=0x30008000
options         KERNVIRTADDR=0xc0000000
options         PHYSADDR=0x30000000
options         STARTUP_PAGETABLE_ADDR=0x30800000

It's from Andrew Turners config file which he posted on
http://wiki.openmoko.org/wiki/FreeBSD
in the tarball.