NEWS5000 support integrated

[Tsubai Masanari <tsubai%iri.co.jp@localhost>]

Hi,

I've commited NEWS5000 support to the source tree.  Currently it supports
only serial console and netbooting.

Many thanks to SHIMIZU Ryo, who started this work!


Copyright (c) 1996, 1997, 1998, 1999
    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 1.4P (GENERIC) #1: Tue Dec 21 17:56:27 JST 1999
    tsubai@mirei:/a/cross/1218/src/sys/arch/newsmips/compile/GENERIC
total memory = 127 MB
avail memory = 115 MB
using 1651 buffers containing 6604 KB of memory
SONY NET WORK STATION, Model NWS-5000, Machine ID #12647
mainbus0 (root)
cpu0 at mainbus0
cpu0: MIPS R4400 CPU Rev. 5.0 with MIPS R4010 FPC Rev. 0.0
cpu0: L1 cache: 16KB/16B Instruction, 16KB/16B Data, direct mapped
cpu0: L2 cache: 1024KB/64b mixed, no snooping
ap0 at mainbus0
mkclock1 at ap0 slot0 addr 0xbf881fe0
dmac3 at ap0 slot0 addr 0xbe200000 not configured
dmac3 at ap0 slot0 addr 0xbe300000 not configured
zsc0 at ap0 slot0 addr 0xbe900000
zstty0 at zsc0 channel 0 (console)
zstty1 at zsc0 channel 1
fd at ap0 slot0 addr 0xbed20000 not configured
kb at ap0 slot0 addr 0xbf900000 not configured
lp at ap0 slot0 addr 0xbed30000 not configured
ms at ap0 slot0 addr 0xbf900014 not configured
sb at ap0 slot0 addr 0xbed00000 not configured
sn0 at ap0 slot0 addr 0xbe600000
sn0: Ethernet address 08:00:46:00:f5:8c
sn0: supplying EUI64: 08:00:46:ff:fe:00:f5:8c
spifi at ap0 slot0 addr 0xbe280000 not configured
spifi at ap0 slot0 addr 0xbe380000 not configured
xa at ap0 slot0 addr 0xb4900000 not configured
boot device: <unknown>
root device: 
use one of: sn0 halt
root device: sn0
dump device: 
file system (default generic): 
nfs_boot: trying RARP (and RPC/bootparam)
sn0: starting DAD for fe80:0001::0a00:46ff:fe00:f58c
sn0: DAD complete for fe80:0001::0a00:46ff:fe00:f58c - no duplicates found
nfs_boot: client_addr=10.9.5.5 (RARP from 10.9.5.1)
nfs_boot: server_addr=10.9.5.1
nfs_boot: hostname=dejiko
root on mirei-tlp1:/a/export/dejiko
root file system type: nfs
Automatic boot in progress: starting file system checks.
...