Arm Development Studio forum Detecting JTAG connection from CPU

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Detecting JTAG connection from CPU

Note: This was originally posted on 11th June 2013 at http://forums.arm.com

Hi all.

I am interested to know if during the initialization process while connecting Jtag debugger to ARM device such as cortex a9, there any way to indicate from the Kernel that this interface is in use?
i would like to know if the initialization process before halting the system is using any CPU register?

thank you