Navq RPMSG for M4 use

[fabianmpa019]

Hi everyone,

I am working with the rpmsg_lite_str_echo_rtos_imxcm4 and having some mishaps.  

Following the readme.txt from the example, i am able to load the .bin to the M4 core.  

m4.png

(although is weird to me why core stack is not at 0x007e0000)

dmesg.png

lsmod.png

But i am not able to see the /dev/ttyRPMSG30 device driver supposed to be created when the imx_rpmsg_tty kernel module is loaded. Thus failing when:

tty.png

Doing some research i found that imx8mm-navq.dtb disables rpmsg

rpmsg.png

could that be the reason?

Thanks in advance

[Peng_Fan]

what m4 side log shows? what kernel verison are u using? Seems virtio channel not created, if ttyRPMSG not created after you insmod imx_rpmsg_tty.ko