iMX 8M leave M4 running under sleep mode

[esegev]

Hi,

I am using IMX8MM, Linux Yocto & Small RT RTOS Application under M4. 

After testing sleep mode, i need the option to leave M4 Application up and running.

1. What is the procedure and setting at device-tree ?

2. Is there a commands for linux ?

3. Leave the Uart periphery under M4 Application works.

Thanks,

Eyal

[rehanmika0630]

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[weidong_sun]

Hi,

   i.MX8M MINI can support the function you describe. 

   For example, you can evaluate and test 'sai_low_power_audio' in M4 SDK :

Hope the information is helpful to you.

Have  nice day!

B.R,

weidong