[U-Boot] U-Boot newbie needs help!

[Alex]

Hi,
If I am not using the correct method for asking a question I apologize. I am very new to Linux and embedded system and I am still having a hard time with basic stuff. Hopefully I'll get there someday...

I am trying to learn this PC104 board from MPL MIP405 and I am going through the process of building a crosstool chain (crosstool-ng). I believe I accomplished this today. Now I am trying to build the u-boot image and transfer to the board using tftpboot command. I am following the instructions but I am getting the following error:

=> tftpboot 400000 u-boot.img                                                                                                                                          
ENET Speed is 100 Mbps - FULL duplex connection                                                                                                                        
TFTP from server 192.168.5.1; our IP address is 192.168.5.2                                                                                                            
Filename 'u-boot.img'.                                                                                                                                                 
Load address: 0x400000                                                                                                                                                 
Loading: ###############################                                                                                                                               
done                                                                                                                                                                   
Bytes transferred = 155238 (25e66 hex)                                                                                                                                 
Automatic boot of image at addr 0x00400000 ...                                                                                                                         
## Booting image at 00400000...                                                                                                                                       
   Image Name:   U-Boot 1.1.4 MIP405 released                                                                                                                          
   Created:      2005-09-13  15:28:20 UTC                                                                                                                              
   Image Type:   PowerPC U-Boot Firmware (gzip compressed)                                                                                                             
   Data Size:    155174 Bytes = 151.5 kB                                                                                                                               
   Load Address: fff80000                                                                                                                                              
   Entry Point: 00000000                                                                                                                                              
   Verifying Checksum ... OK                                                                                                                                           
Wrong Image Type for tftpboot command  

I also tried to transfer a u-boot.img file that is provided on the MPL website and obtained the same result as above. I was wondering if this could be a problem with the toolchain that I created. Or maybe I am not building the u-boot.img the proper way. I am sure it is a newbie mistake. 

I am not sure if you require any more specific information about the setup to provide an answer. If so, please let me know.

Thanks in advance for any help you can give me.
Alex

Command used:
make MIP405_config
make
tools/mkimage -A ppc -O u-boot -T firmware -C none -a fff80000 -e 0 -n 'U-Boot for MIP405' -d u-boot.bin u-boot.img