NetBSD

Revision as of 19:43, 7 October 2007

Running NetBSD in Qemu-neo1973

A NetBSD port is only ready for kernel developers.

Required tools

You will need mkimage from u-boot. It's available in pkgsrc/wip under u-boot.

You will also need Qemu-neo1973. Hints on building it are avaliable from this page.

Building NetBSD

You will need to

cd /usr/src/sys/arch/evbarm/conf
cp SMDK2410 NEO1973
cp std.smdk2410 std.neo1973

and apply these patches

Patch NEO1973 like:

-include "arch/evbarm/conf/std.smdk2410"

+include "arch/evbarm/conf/std.neo1973"

Patch std.neo1973 like:

+makeoptions KERNEL_BASE_VIRT=0xc0008000

From the NetBSD src tree run:

cd /usr/src
./build.sh -m evbarm tools
./build.sh -u -m evbarm kernel=NEO1973
mkimage -A arm -O netbsd -T kernel -C none -a 30008000 -e 30008110 -n "Kernel Image" -d /usr/obj/sys/arch/evbarm/compile/NEO1973/netbsd  /usr/obj/sys/arch/evbarm/compile/NEO1973/netbsd.boot

You will now have a copy of NetBSD that is able to be loaded by u-boot.

Running NetBSD

From the qemu directory edit the openmoko/flash.sh and add the line

kernel_image="/usr/obj/sys/arch/evbarm/compile/NEO1973/netbsd.boot"

after the four "most_recent" lines.

Next run

./openmoko/download.sh
./openmoko/flash.sh

This will fetch the required parts and create an image to run. They require you to have bash installed.

Finally run qemu with

cd /usr/pkg/emul/neo1973; qemu-system-arm -M neo -m 130 -mtdblock openmoko/openmoko-flash.image -kernel openmoko/openmoko-kernel.bin -usb -show-cursor -serial telnet:localhost:1200,server

And from another xterm

telnet localhost 1200

and qemu will go on with the startup process.

In Qemu running u-boot

press Enter two times to opt "Set console to serial"

press Space to select.

press Space to select option "Boot"

In telnet to the serial port you should see:

host007# telnet localhost 1200
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.


U-Boot 1.2.0-moko9_r0 (Aug 19 2007 - 19:17:12)

DRAM:  128 MB
NAND:  64 MiB
Found Environment offset in OOB..
Video: 640x480x8 31kHz 59Hz

NAND read: device 0 offset 0x25c000, size 0x5000

Reading data from 0x260e00 -- 100% complete.
 20480 bytes read: OK
USB:   S3C2410 USB Deviced
In:    serial
Out:   serial
Err:   serial
GTA01Bv4 # Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
    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 3.1 (NEO1973) #0: Sun Oct  7 17:30:15 CEST 2007
        noud4@host007.template:/usr/obj/sys/arch/evbarm/compile/NEO1973
total memory = 32768 KB
avail memory = 26688 KB
mainbus0 (root)
cpu0 at mainbus0: ARM920T rev 0 (ARM9TDMI core)
cpu0: DC enabled IC enabled WB enabled EABT
cpu0: 16KB/32B 64-way Instruction cache
cpu0: 16KB/32B 64-way write-back-locking-A Data cache
ssio0 at mainbus0: fclk 200 MHz hclk 100 MHz pclk 50 MHz
ohci0 at ssio0 intr 26
ohci0: OHCI version 1.0
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: Samsung OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
sscom0 at ssio0 unit 0: UART0 addr=50000000
sscom0: console (major=104)
sscom1 at ssio0 unit 1: UART1 addr=50004000
ssextio0 at ssio0
lcd0 at ssio0
wsdisplay0 at lcd0 kbdmux 1
wsmux1: connecting to wsdisplay0
ssspi1 at ssio0 unit 1
sskbd0 at ssspi1 intr 1
wskbd0 at sskbd0 mux 1
wskbd0: connecting to wsdisplay0
clock: hz=100 stathz = 64 PCLK=50000000 prescaler=2 tc=24414
ugen0 at uhub0 port 3
ugen0: Cambridge Silicon Radio Bluetooth USB Adapter, rev 2.00/19.58, addr 2
boot device: <unknown>
root device: 

This all thanks to and inspired by the FreeBSD page