Status LED implementation

[pavelyazev]

Hi,

I am working on the porting openwifi to a new platform.
I use Zed board as a reference platform. In the original implementation Zed board blinks by its LEDs during operation.
I would like to reproduce similar behavior.
Unfortunately, I have not managed to find how status led functionality is implemented.
From the device tree and HW project I understand led connections.
But I have not found which part controls leds from the software side.

Can someone clarify this topic?