Verdin Cortex-M4 autoboot

[swiss]

Hi,
I have a question concerning automatic M4 boot that was mentioned in this question

@hfranco.tx

For the M4 to boot automatically, you can use the commands “m4_0_image” and “m4boot_0”

Colibri iMX8X # setenv load_cmd "ext4load mmc 0:1"
Colibri iMX8X # setenv m4_0_image "/ostree/deploy/torizon/var/hello_world.bin"
Colibri iMX8X # setenv bootcmd "run m4boot_0; run bootcmd_mmc0"  
Colibri iMX8X # saveenv
Saving Environment to MMC... Writing to MMC(0)... OK
Colibri iMX8X # reset

With these commands, you will set your bootcmd to launch the M4 and the cortex A automatically

you didnt specify how the m4boot_0 command should look like in this case. I tried just copying the commands that I usually use to start the process inside this variable. I usually start the code like this:

ext4load mmc 0 0x48000000 m4_0_image && dcache flush && cp.b 0x48000000 ${m4addr} 0x20000

bootaux ${m4addr}

My env variables look like this

bootcmd=run m4boot_0; run bootcmd_mmc0
load_cmd=ext4load mmc 0:1
m4addr=0x7e0000
m4boot_0=run load_cmd 0x48000000 m4_0_image; run dcache flush; run cp.b 0x48000000 0x7e0000 0x20000; run bootaux 0x7e0000
m4_0_image=/ostree/deploy/torizon/var/cmsis_ecspi_int_loopback_transfer.bin

but I get an error:

** No boot file defined **
# Error: "dcache" not defined
# Error: "cp.b" not defined
# Error: "bootaux" not defined

Thanks in advance!