What I am asking, for Calix I think,
is how to make the Compiler do this.

Of course it can be done manually - if you control where the EEPROM variables are located, you will know where they are. So you can put the initializers at the corresponding 0x2000 offset from where the EEPROM variables at 0x0000 are.

But do you know of the correct way to do it without controlling the locations of the variables and making the compiler do the work ?