NVMe boot? Needs updated uboot?

[balbes-150]

For those who are interested in a system with EFI\Grub on NVMe, including without having to write something to SPI, while maintaining the launch of any systems from an SD card.

GRUB EFI Boot: Data Abort Exception

I checked the launch of EFI\Grub mode when placing the entire system on NVMe, everything starts up and works fine with NVMe (while the SD card is used exclusively for u-boot placement, because I have not yet checked how my u-boot can be written to SPI). At the same time, the device startup sequence works correctly with my u-boot (unlike the stupid option used in the official u-boot for NVMe) - if you connect an SD card, the system automatically starts from the SD card, the system on NVMe does no…