Mainline U-Boot with SPI, NVMe and SATA boot support

[belfastraven]

...
=> run bootcmd_nvme0

Device 0: Vendor: 0x144d Rev: EXD7101Q Prod: S444NE0K603440      
           Type: Hard Disk
           Capacity: 244198.3 MB = 238.4 GB (500118192 x 512)
... is now current device
** Unrecognized filesystem type **

JI'm just including the log this time so that you can see that I did use the proper images....

Once again, thanks.

@belfastraven thanks for testing, and pasting the full log here. Looks like your NVMe device is detected OK, I suspect the "Unrecognized filesystem type" problem is just because there is no BTRFS support in this build (it's not enabled in U-Boot by default).

I enabled BTRFS in the config and re-built U-Boot, I haven't tested this yet but you could try using the resulting build, attached: 
Edit: if you need the SPI binaries from this build, they can be downloaded from this build artifacts page.

Just wnted to let you know that I tried with the new u-boot images.  I no longer got the UnrecognizedFilesystem message,  but got a scanning message,  then got returned to the u-boot prompt.   I changed the armbian build to use ext4 for the nvme,  and did reach  the kernel starting message,  but then hung.  I believe this is because the armbian bootscript specifies the partition for u-boot,  and seems to specify that it use the same partition from which the spl-tpl image ran.  I am going to try to get the armbian images to work,  but am now going to try with a manjaro build (which has a much simpler boot script. :-).   I'm reasonably good with "c"  "bash" not so much...