M4 code incorporated into imx-boot halts after a second

I’m not so sure I could be that as all of this happens before I boot linux. At the moment if i use the following post as a guide:

I get this at boot:

Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0(part 0) is current device
Scanning mmc 0:1...
Found U-Boot script /boot.scr
1182 bytes read in 13 ms (87.9 KiB/s)
## Executing script at 83100000
** Reading file would overwrite reserved memory **
## Error: "bootcmd_run" not defined
SCRIPT FAILED: continuing...
Apalis iMX8 #

So i’m really not sure what I can do.