[U-Boot] Kirkwood (Sheevaplug) ping crashes(?) U-Boot

[Dieter Kiermaier <dk-arm-linux@gmx.de>]

Hi all,

I've tried the first time booting a self compiled u-boot from git.marvell.com 
U-Boot can be downloaded and started with openocd quite well.
Boot messages (version is dirty due to a comment in board file):

U-Boot 2009.06-rc2-02207-g14c575a-dirty (Jun 22 2009 - 13:40:45)
Marvell-Sheevaplug

SoC:   Kirkwood 88F6281_A0
DRAM:  512 MB
NAND:  512 MiB
*** Warning - bad CRC or NAND, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   egiga0
88E1116 Initialized on egiga0
Hit any key to stop autoboot:  0
Marvell>>


Environment is broken only with marvell git u-boot. Preflashed u-boot find 
environment is ok.
Does sheevaplug u-boot from marvell git use other environment settings than 
preflashed u-boot?

Marvell>> printenv
bootcmd=${x_bootcmd_kernel}; setenv bootargs ${x_bootargs} ${x_bootargs_root}; 
bootm 0x6400000;
bootdelay=3
baudrate=115200
x_bootargs=console=ttyS0,115200 
mtdparts=orion_nand:512k(uboot),3m at 1m(kernel),1m at 4m(psm),13m at 5m(rootfs) rw
x_bootcmd_kernel=nand read 0x100000 0x6400000 0x300000
x_bootargs_root=root=/dev/mtdblock3 rw rootfstype=jffs2
stdin=serial
stdout=serial
stderr=serial
ethaddr=00:50:43:e0:b9:d8
ethact=egiga0
ipaddr=192.168.2.75

(ipaddr is set after bootup with setenv ipaddr 192.168.2.75)

If I now try to ping another machine in the same network:
Marvell>> ping 192.168.2.251
Using egiga0 device



This is all what happens - no response from board, CTRL-C doesn't work.
Only a hard reset will get the board up again.

Do I have to change something in the default board configuration to 
succesfullly use networking on the sheevaplug?

u-boot is build with following commands:

make ARCH=arm sheevaplug_config
make

I get no errors during build.

My gcc version is:
arm-none-linux-gnueabi-gcc (GCC) 4.2.0 20070413 (prerelease)

Any help would be appreciated,
Dieter