[U-Boot-Users] No boot prompt on Ebony 440GP board

Gregg Lastname gregglastname at hotmail.com
Thu Jul 7 00:56:05 CEST 2005

I have a PPC440GP evaluation board ("Ebony"). I used the buildroot tools 
from buildroot.uclibc.org to build a cross compiler based on gcc 3.4.4. I 
then built u-boot by issuing

   make EBONY_config

which built u-boot without any errors. I then wrote the resulting u-boot.bin 
file to flash using a JTAG programmer. I set the DIP switches and jumpers 
according to the README.ebony instructions. When I power the board up, the 
following console text is generated:

----begin console output-----
U-Boot 1.1.2 (Jul  6 2005 - 15:51:04)

IBM PowerPC 440 GP Rev. C
Board: IBM 440GP Evaluation Board (Ebony)
        VCO: 600 MHz
        CPU: 300 MHz
        PLB: 100 MHz
        OPB: 50 MHz
        EPB: 50 MHz
I2C:   ready
DRAM:  I2c read: failed 4
I2c read: failed 4
128 MB
-----end console output-----

and then nothing more happens. No prompt is displayed. I tried the J41/J42 
bootstrap corruption directions, but it did not seem to have any effect. 
Could someone suggest what to do next? I assume I am supposed to receive a 
prompt that enables me to enter interactive commands. Is that correct?



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