<div><div dir="auto">I at least hoped after nearly a year shipping the board that some enterprising fellow might have gotten that information and snuck in an OpenOCD configuration :)</div><div dir="auto"><br></div><div dir="auto">That DS-5, as ‘niche’ as it is, isn’t a priority for Marvell and they don’t even have rudimentary encrypted Lauterbach scripts that they are willing to share makes having and advertising JTAG on the board more of an insult to ‘men who debug’ than flakey PCIe.</div><div dir="auto"><br></div><div dir="auto">Maybe I should rephrase the question, who do we need to talk to - anyone at Semihalf or SolidRun or Marvell - who knows why the TAP is locked down or even the process for proving a need to unlock it once you’ve paid up for a board?</div><div dir="auto"><br></div><div dir="auto">Ta,</div><div dir="auto">Matt</div><br><div class="gmail_quote"><div>On Wed, Mar 21, 2018 at 04:47 Frederik Lotter <<a href="mailto:frederik.lotter@netronome.com">frederik.lotter@netronome.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="gmail_extra"><div class="gmail_quote">On Tue, Mar 20, 2018 at 8:03 PM, Matt Sealey <span><<a href="mailto:neko@bakuhatsu.net" target="_blank">neko@bakuhatsu.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">Hello all,</div><div dir="auto"><br></div><div dir="auto">Anyone got *any* kind of JTAG debugger working with a Macchiato yet?</div><div dir="auto"><br></div><div dir="auto">I was unpleasantly surprised that the EspressoBIN works out of the box, but my McBIN seems to present me only with a single TAP with a strange (not Marvell?) JEP106 vendor and the product ID 0x8040 - that’s no Coresight DAP I’ve ever seen...</div><div dir="auto"><br></div><div dir="auto">Is there some lockout that should not have been placed or something the PM firmware running on the M3 could do to give us actual debug access (or could I short a test pad, flip a switch or just forget it and use the damn thing as a doorstop?)</div><div dir="auto"><br></div><div dir="auto">Marvell are being their usual selves regarding any information and documentation, so I’m putting it out here.</div><div dir="auto"><br></div><div dir="auto">Ta,</div><div dir="auto">Matt</div></blockquote><div><br></div></div></div></div><div><div class="gmail_extra"><div class="gmail_quote"><div>I've asked the same question before. </div><div><br></div><div>ARM (DS-5) did not have debug support. I did not check any further.</div><div><br></div><div>The JTAG device you see is some proprietary TAP router device that needs special sequences to wire/route in the Coresight DAP. Unfortunately these codes are not publicly available as far as I know. </div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>_______________________________________________<br>
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