JTAG Access to the Banana Pi W2

Is there a method of gaining JTAG access to the RTD 1296 controller on the BPI-W2?

We’re trying to do some debugging of code that we’ve written, and we were hoping for a little more control than just outputting debug messages over the UART.

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I have been trying to connect Jtagulator to the board to get the pin-out but after running it, I don’t get any GPIO pins returned back. Its probably because the pins that I have plugged in are incorrect. Does anyone know what pins (1-40) that I should be using for connecting JTAG and running openOCD?