In message 008d01c4986d$8293fb90$030aa8c0@t you wrote:
first problem with bootloader:
...
Seems everybody else is executing this code without problems
Indeed. Are you sure your CPU can read the flash contents without problems?
Another problem is with MMU on linux. cpu crashes almost immediately at start. when linux atempts to initialize MMU
How do you know? Are you using a JTAG debugger? Which one/ Does it understand to use virtual addresses, and is it configured correctly for this?
What can cause such behavior? Or these cpu have some defect?
I guess you are using an inappropriate and/or misconfigured tool. Additionally, there might be the typical RAM problems you can read about in at least 9 out of 10 postings on tis list.
Best regards,
Wolfgang Denk