11-30-2019, 04:07 PM
(11-29-2019, 04:18 PM)Arwen Wrote: If the new U-Boot image fails in such a way we can't work around the problems easily, we install a SD card that has a special signature our stage 1 code recognizes. If stage 1 sees this, it changes the U-Boot image selection to the other one, (aka old U-Boot image), and proceeds to boot.
Discussion anyone?
I would suggest if the stage 1 code recognizes an SD then it boots from that. It seems more robust than looking for a special signature, and doesn't require an SD that has a special signature, or a working boot image on the SPI.