Cool! I’ll try to build my own u-boot!
In the meantime I can report the Intel 660p 1TB NVMe SSD as working for SPI + NVMe boot.
(Yes, I’m 2 months late ;))
Update: It seem’s I’m having issues rebooting. After I type:
root@localhost:~# reboot
systemd does its thing and then the machine hangs at:
[ OK ] Stopped LVM2 metadata daemon.
[ 34.280526] dw_wdt: unexpected close, system will reboot soon
[ 34.563789] reboot: Restarting system
But it does not actually reboot. This worked before (with eMMC-boot). I don’t know if this an issue from the new u-boot or something else.