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AM335x JTAG chain setup with all taps enabled

Dear all,


I'm trying to set up the JTAG chain so that I can access both the Wakeup-M3 and the A8 simultaneously. I'm using a Flyswatter2 and OpenOCD. I have successfully accessed both cores in a single TAP setup so I know that it works in principle, but I fail to set up the chain so that both cores are visible.


I've read and tried to reproduce the steps given in "Router (ICEPick-D) Debug Configuration Information" Version 0.1, which I found googling around, but it doesn't seem to work.

Is there someone who has successfully set up an "all-in" configuration?