Because I don't think there is easy "step-by-step" instruction available for what you want to do.
Why do you want to use eclipse from the beginning? Eclipse is big system, generally not suited to run on embedded target like iMX53 QSB. If you just want to run simple program like "hello world", it will take more than x100 times of effort just to run Eclipse on iMX53QSB than just comple "hello" on it.
If your professor said to do so, it is your challenge to find out how to run Eclipse on embedded system like iMX53 QSB. Take the challenge and good luck. There is no ready-made answer for it.