[U-Boot] MPC8347 Initial Boot problems

[Gardner, Austin (GE Transportation)]

Hello,

I am currently trying to get my MPC8347EA board up and running by porting the MPC8349EMDS configuration that is currently available. This is my first time working with uboot, so naturally I am having some issues. My issue is that I can't get any response from the board after we flash it with the binary image. I don't know if I am flashing it in the wrong location, or if it is because the configurations in the header files that I changed are wrong. I have tried flashing it in various locations such as start of memory, CONFIG_SYS_TEXT_BASE location (changed to our needs of 0xFF8000000), etc. I also have changed a lot of the memory configurations from the MPC8349EMDS such as the timing configs, ddrlawbar and ddrlawar, sdram configs and modes, etc.

After getting the uboot to actually launch to a command line, the next step will be to have it launch to our QNX os.

Any help with this would be greatly appreciated. I apologize if I use the wrong terminology at any point, I am still very new to this.

Thanks,
Austin