ADAU1467 selfboot and AD1937 i2c

I'm using the ADAU1467 driving a AD1937.

I'm able to configure the codec and all is working fine only if I don't select the selfboot mode. 

In order to use the selfboot mode, I load the eeprom (via dsp) by selecting the button "secondary i2C" in the "MULTIPURPOSE1" tab, but so the i2c is routed on MP2 and MP3 pins, instead of the MP24 and MP25 as required byt the codec.

I try to write 0x01 to the register 0xF5F0, but then I think I should delay the i2c write. Any suggestion?