RPMSG COMMUNICATION IN IMX7DSABRESD

[nagaprasadvasam]

Hi Everyone,

   I am booting Linux kernel version 4.9.88_2.0.0 for my imx Board, i need to enable inter-processor communication between m4 & A7 cores, i manually loaded modules related to RPmsg but a i am not getting any node for RPmsg inside /dev folder i.e /dev/ttyRPMSG how to enable it,can any one help me.

Thanks & Regards,

Prasad.

[igorpadykov]

Hi nagaprasad

one can try procedures described in sect.2.6 Remote Processor Messaging, sect.9.19

Remote Processor Messaging attached Linux Manual

rpmsg\test - imx-test - i.MX Driver Test Application Software 

Best regards
igor
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[nagaprasadvasam]

Hi igor,

   Thanks for your reply, i have seen link you provided.but for that it is required that there should be a node in /dev i.e,

"/dev/ttyRPMSG". i am not able to get this when i loaded modules in imx7dsabresd.

Thanks & Regards,

Prasad.

[igorpadykov]

Hi Prasad

could you try with Demo Images from

i.MX Software|NXP 

for example Linux Binary Demo Files - i.MX 6UltraLite, i.MX 6ULL, i.MX 7Dual

https://www.nxp.com/webapp/Download?colCode=L4.9.88_2.0.0_MX6UL7D&appType=license&location=null&Pare... 

Best regards
igor