Our device is currently not utilizing the Cortex M4 core on the i.MX7d processor. Is there any means (GPIO, SMBus,etc.) to power off the Cortex M4 core?
Hi Cameron Napolitano,
As mentioned in the i.MX7D RM section 4.2.5 Cortex-M4 Boot requirement, Cortex-A7 is responsible for enabling and providing clock to Cortex-M4, please see the image below:
Taking clue from the last point, using the SRC_M4RCR(M4 Reset Control Register) register's 3rd bit (ENABLE_M4) we can enable/disable M4.
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