Problem with programming EEPROM in addresses higher than 0x10000

Hi,

I built a secondary bootloader with my image using mkimage. This gives me a binary output and works well

However I notice that when I program the image into my i2C EEPROM, anything above 0x10000 is not programmed (for example, the product header).

If I try to burn anything in an address above 0x10000, it tells me it succeeded, but when I read it back it is all 0xFF. Data in earlier addresses seem to be fine and I can boot from the EEPROM using one image.
The EEPROM I am using is this one:http://www.st.com/st-web-ui/static/active/en/resource/technical/document...

Is there a reason why I can't program at these addresses? I did have to modify jtag_programmer.bin to make the EEPROM work with the pins I am using, but maybe I need to change other parameters?