Post Go back to editing

SC589-EZKIT programming U-Boot

I'm attempting to follow the "Installing U-Boot" instructions here: https://wiki.analog.com/resources/tools-software/linuxdsp/docs/quickstartguide/installing_uboot

Everything appears to have worked, but I cannot get any UART traffic out of the device after a power cycle.  I can see the RX led blink with input from minicom, but never see any output.

What did I miss?