How to run program on unmatched without jtag?

[w-mj]

I want to run a program built with freedom-e-sdk on Sifive Unmatched board directly instead of via jtag.
I have tried following 2 methods:

1. load the elf file into memory and run 'bootelf' command in u-boot.
2. load the bin file and run 'go' command.
   But both of them are not working and got Instruction access fault.
   I am wondering is there any method to run program on unmatched without jtag?