So my standalone board of ls1021a which has an external eMMC, DDR no SD card slot option. I want to test the uboot binary on the LS1021A-TWR eva board via JTAG interface first then flash to my stand alone board. I want to make sure
(1) if SD card on my eva board and eMMC on my standalone board are the same thing in terms of RCW boot source.
(2) I had encountered this error when I tried to flash into SD card on the eva board