I was further looking at the Psoc 5 Dev Kit schematics and I noticed U3 which is a EEPROM, I'm starting to think that this is custom code from Cypress and if that is true then this changes everything.
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As I recollect, the FreeSoC board used FX2 chip. You can find FreeSoc schematic and board layout here
I would also check a FreeSoC2 schematics