I would like to outline that boot-mode DIP switch on AM335x EVM (SW3) is labelled in a the wrong way, that means:
SW3[1] = ON ---> SYSBOOT[0] = 0
SW3[1] = OFF ---> SYSBOOT[0] = 1
This is also clarified in U-Boot and StarterWare user guides, which IMHO are not the best places for an EVM HW detail.
Regards, Max