i.MX8 nano wakeup options

[efio]

Hi,

I have few questions regarding i.MX8 nano wakeup options:

If I want to use the WOL option, is there another way to wake the processor?
Do I need to wake the A53 & M7 processors separately?
what is the WAKEUP pin functionality (GPIO5_IO00)?
Can I use any GPIO I want for wakeup?

Thank you,

[Alejandro_Salas]

Hello @efio 

For WOL the way to wake the processor is When a magic packet is detected, indicated by ENETn_EIR[WAKEUP], ENETn_ECR[SLEEP] should be cleared to resume normal operation of the MAC. Clearing the SLEEP bit automatically masks ENETn_ECR[MAGICEN], disabling magic packet detection.

You can find this information in reference manual, chapter 11.3.4.7.3 Wakeup of ENET.

For pin GPIO5_IO00, let me check, I believe that is a typo in reference manual but I am not pretty sure. The pin for wakeup is GPIO13_IO00.

Best regards!