[U-Boot] SPL boot modes

[Joel A Fernandes]

Hi Simon,

Great work on the SPL patches for omap. I am getting a bit familiar
with this and earlier SPL work.

Just one question about one of your patches I happen to notice [1],
why is there a SPL build for each different boot mode such as for
NAND, MMC etc?. Wouldn't it be nicer to have a single SPL loader that
tried different boot modes one after the other, something like what
x-load already does? Are there are any challenges with this approach?

Thanks!
Joel