DSM-G600, DNS-3xx and NSA-220 Hack Forum

Hi. I have got an DNS-320 rev A1. I have been playing around with it. Soldered serial connectors, rewrite U-boot... and stuck.
I need some help to install debian or ALT-F on it. Every help would be great.
Some info about the nas:

U-Boot 2012.10-00004-g8aac38e (Dec 26 2012 - 21:37:42)
DNS-320

SoC:   Kirkwood 88F6281_A1
DRAM:  128 MiB
WARNING: Caches not enabled
NAND:  128 MiB
In:    serial
Out:   serial
Err:   serial
Net:   egiga0
Hit any key to stop autoboot:  0
(Re)start USB...
USB:   Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
       scanning bus for storage devices... 0 Storage Device(s) found
** Bad device usb 0 **
Booting from nand ...

NAND read: incorrect device type in kernel



=> version
U-Boot 2012.10-00004-g8aac38e (Dec 26 2012 - 21:37:42)
DNS-320
arm-linux-gnueabi-gcc (Debian 4.4.5-8) 4.4.5
GNU ld (GNU Binutils for Debian) 2.20.1.20100303

=> bdinfo
arch_number = 0x00000F91
boot_params = 0x00000100
DRAM bank   = 0x00000000
-> start    = 0x00000000
-> size     = 0x08000000
ethaddr     = 5C:D9:98:F9:4A:7C
ip_addr     = 192.168.1.2
baudrate    = 115200 bps
TLB addr    = 0x07FF0000
relocaddr   = 0x07F47000
reloc off   = 0x07947000
irq_sp      = 0x07E26F68
sp start    = 0x07E26F58
FB base     = 0x00000000

=> mtdparts
device nand0 <orion_nand>, # parts = 3
#: name        size        offset        mask_flags
0: u-boot              0x000e0000    0x00000000    0
1: u-boot-env          0x00020000    0x000e0000    0
2: root                0x07f00000    0x00100000    0

active partition: nand0,0 - (u-boot) 0x000e0000 @ 0x00000000

defaults:
mtdids  : nand0=orion_nand
mtdparts: mtdparts=orion_nand:896k(u-boot),128k(u-boot-env),5m(kernel),-(rootfs)


=> printenv
autoload=no
baudrate=115200
bootcmd=if test -n ${bootenv} && usb start; then if run loadbootenv; then echo Loaded environment ${bootenv} from usb;run importbootenv;fi;if test -n ${bootenvcmd}; then echo Running bootenvcmd ...;run bootenvcmd;fi;fi;run setnandbootenv subbootcmd;
bootdelay=3
bootenv=uEnv.txt
console=ttyS0,115200
ethact=egiga0
ethaddr=5C:D9:98:F9:4A:7C
importbootenv=echo Importing environment ...; env import -t ${loadaddr} ${filesize}
ipaddr=192.168.1.2
loadaddr=0x800000
loadbootenv=fatload usb 0 ${loadaddr} ${bootenv}
mtddevname=u-boot
mtddevnum=0
mtdids=nand0=orion_nand
mtdparts=mtdparts=orion_nand:896k(u-boot),128k(u-boot-env),-(root)
nandloadimage=nand read ${loadaddr} kernel
nandroot=ubi0:rootfs ubi.mtd=rootfs
nandrootfstype=ubifs
netmask=255.255.255.0
partition=nand0,0
serverip=192.168.1.1
setbootargs=setenv bootargs console=${console} ${optargs} ${mtdparts} root=${bootenvroot} rootfstype=${bootenvrootfstype}
setnandbootenv=echo Booting from nand ...; setenv bootenvroot ${nandroot}; setenv bootenvrootfstype ${nandrootfstype}; setenv bootenvloadimage ${nandloadimage}
stderr=serial
stdin=serial
stdout=serial
subbootcmd=run setbootargs; if run bootenvloadimage; then bootm ${loadaddr};fi;

Environment size: 1280/131068 bytes