Let me explain "yeter ki" It literally means "it is enough that". But because it expresses a condition, we can translate it as "if only" or "just".

Senin için herşeyi yaparım yeter ki beni sev.

I would do anything for you if only you loved me.

or

I will do anything for you, just love me. (We prefer this in Turkish)

Thank you so much for helping me,Abla and gokuyum.. I understood this song on my language,but my English isn´t so much good,especially for song,and poetry. This was my first translating,so I should be satisfied...