How to share gpio bank beween M4 and A7 on i.MX7 SoC?

[jagdishgediya]

If i keep gpioX bank enabled in A7 device tree, I am not getting interrupt on M4 side on other pins of same GPIO Bank. I need to share gpio bank between A7 and M4 to get interrupt from different peripheral on different processor.(A7 and M4).

How can i achieve it? Please let me know your thought on it.

[igorpadykov]

Hi jagdish

please try to configure RDC for obtaining gpio permissions from m4 side,

it is supported by FreeRTOS as mentioned in attached Release Notes.

Please pay attention to Chapter 20 GPIO Example Demo User Guide

Best regards
igor
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