Has the i.MX6 got an internal debug capability ? (AHB/APB bridge)

[jeanemond]

Hi everyone,

I'm working on a wandboard with an i.MX6DL, and I found mentions in the documentation of a bridge between the APB and the AHB bus.
Since the DAP also uses the APB to debug the cores, I was wondering whether this bridge could offer debug capability from within the cores themselves, or whether there's any way we could debug one core from another.

Thanks
Jean

[sinanakman]

Hi Jean

There is some Coresight support in the kernel :

Linux/Documentation/trace/coresight.txt - Linux Cross Reference - Free Electrons 

It doesn't use all the debug capabilities but might be interesting

to take a look in case you haven't seen it earlier.

Hope this helps

Regards

Sinan Akman