That’s AT24 I2C not AT25 SPI EEPROM unfortunatel, and from a quick look it “just worked” ☹
There is support for the AT24 in other SAM boards. Search for AT24 in defconfigs, I find
boards/arm/samv7/same70-xplained/ boards/arm/samv7/samv71-xult/ boards/arm/xmc4/xmc4500-relax There is even simulated AT24 support: boars/sim/sim/sim You should be able to duplicate the logic from the samv7 boards.
