Is OpenPIC mandatory for an ofppc-machine?

[Artyom Tarasenko <atar4qemu%gmail.com@localhost>]

Hi,

experimenting with Open Firmware for QEMU PReP target.

The kernel starts loading, but hangs at (I guess OpenPIC) initialization:

ok boot cdrom:,\NBSD\OFWBOOT
Boot device: /pci/ide/disk@2,0:,\NBSD\OFWBOOT  Arguments:

>> NetBSD/ofppc OpenFirmware Boot, Revision 1.10
>> (builds%b6.netbsd.org@localhost, Sat Nov  6 17:13:39 UTC 2010)
open /netbsd.ofppc: Device not configured
open /netbsd: Device not configured
open /netbsd.gz: Device not configured
open onetbsd: Device not configured
Boot: disk1
9760152+174104 [260608+254888]=0x9f774c
 start=0x100000
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010, 2011, 2012
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 6.1.3 (INSTALL)
Model: QEMU PReP
total memory = 128 MB
avail memory = 113 MB
bootpath: disk1/netbsd
mainbus0 (root)
cpu0 at mainbus0: 603 (Revision 1.0), ID 0 (primary)
cpu0: HID0 0x90c002<DOZE,DPM,ICE,DCE,NOPDST>, powersave: 1
cpu0: L1 I-cache 8 KB 0B/line, D-cache 8 KB 0B/line
ofwpci0 at mainbus0

And here it hangs. Saw in some boot logs openpic initialization here.
QEMU uses an i8259, can this be the reason?

-- 
Regards,
Artyom Tarasenko

SPARC and PPC PReP under qemu blog: http://tyom.blogspot.com/search/label/qemu