In message 42248E52.8070109@esem.com you wrote:
If I understood you right, U-Boot is maybe not the best choice for me, because there are only 2KB XIP Flash available at address 0x00000000 on startup.
I wouldn't put it like that. IMO your hardware is not the best choice for you because it is missing a proper boot ROM (256 kB flash would be just perfect) to allow you using a decent boot loader without jumping in loops.
Because of the several boot-modes, the lh7a404 offers, I'm thinking in the meantime about to ommit the loader completely and copy the kernel image directly from DoC to ram and jump there.
And who will initialize the hardware for Linux? Who will tell the Linux kernel how much memory you have, and pass all the other bot arguments to it? And how will you get LInux into the DoC in the first place?
It's software, so all things are possible. But not all things are reasonable.
Best regards,
Wolfgang Denk