Benedict, Michael wrote:
David Hawkins wrote:
I am trying to update U-Boot on my MPC8349EA-MDS.
How old was the U-Boot version that you upgraded from?
I am upgrading from 1.1.3, that shipped on the board.
The MPC9349E boot sequence was modified at one point, and so to boot a new kernel you had to also change the HRCW. I forget the details, but here's my notes ...
http://www.ovro.caltech.edu/~dwh/powerpc_mpc8349e.pdf
see the comments on p18.
I am pretty confused by your notes as they relate to my image. For me, I am flashing at fff00000. This is sufficient to brick the board :-D. It seemed like your notes were reflecting a change in the boot address between versions? I tried to use the addresses you mention and 1) fe000000 tells me it is not erased, even after I erase it (?) and 2) fe700000 seems to have no effect. I thought those were the u-boot locations for the mpc8349ITX (?).
The ITX can boot from FE000000 or FEF00000 if you're using the latest code from denx.de. FE700000 is the address of the "alternate" U-Boot location. If you flip a jumper, addresses from FE000000-FE7F0000 are swapped with FE800000-FEFFFFFF. This causes the U-Boot that used to be at FE700000 to appear at FEF00000.
Michael, I think your problem is in the configuration. For instance, you're building a U-Boot from the wrong config file, or you're flashing it to the wrong address, or there's some low-level config option that's set wrong, like a LAWAR or LAWBAR.
I would use a BDI. You need to find out which instruction is causing the hang/panic.