From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpcmd11117.aruba.it (smtpcmd11117.aruba.it [62.149.156.117]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A8141173 for ; Fri, 18 Jun 2021 22:09:01 +0000 (UTC) Received: from [192.168.126.129] ([146.241.205.41]) by Aruba Outgoing Smtp with ESMTPSA id uMfcl7BkAWIZBuMfclvgxg; Sat, 19 Jun 2021 00:09:00 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=aruba.it; s=a1; t=1624054140; bh=nuW/UWo6N+TAVrhc/aFtdDQ7EA/bHV0pGwE4cMqhS5c=; h=To:From:Subject:Date:MIME-Version:Content-Type; b=gYiy+HTwKarTAPjCdtdnMXPeuQ8OZVaxNeL09afRsd2m1HctTUSx+3S5beHSndQPS vCTgqrXApEPIK1kuhZ0nBHpH/K/s5YRaK82HSaNC2dZOzlu+d75DT5LUpxjg6Qb4DA eUyTbOa/zptARRhwr8CyN5w/vCxsgf0en69oSblPk/a3bx6uaau1yF8NIw6SKDWOQP TS4xXbQusqzcbVBKZHVo6440iqTiW2JnazyrIUV4053BKFBU10nqZvBG+NF6y2E8xN xjP33QnmXgigZKmUYm8iiHirpiX/j8ObGdLjthCceHfy+s7UEKVinl/EGLfaH0sGks KIHAbThAsFhsQ== To: linux-sunxi@lists.linux.dev From: Giulio Benetti Subject: S-JTAG on A33 Message-ID: <39ce90de-a17f-272b-2915-c9c50780a859@benettiengineering.com> Date: Sat, 19 Jun 2021 00:09:00 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-CMAE-Envelope: MS4wfGi/PTrUSC3SqjTxjZU8mxN2J474rXcy32cRGpQ8nvgUIAHDtyczvUu+jZfpXyl2KjZugrg00bwgN9RQmDdUls4wj3xaw3v4WRmQKCimnp65JfHMLU/A EwLSA2s4qkOf0/hOlNFdtZ9IaPrLMRHbyoUgWdspA3KZ+hejOma/8cnEbb3k4cFf91I7giWZZifmdt9RAhuPvQDEgX867IyXVoo= Hello All, have anyone accessed A33 jtag through S-JTAG(PL4-PL7) port? In u-boot present in sd-card on SDC0 I've configured those pins as jtag mux(both tried 2 and 3 as values), but while Trace32 answers on JTAG(PF port) it doesn't answer on S-JTAG on PL port. I've double-checked with md.l under u-boot and the values are correct, it seems something is missing. So I've tried looking for PRCM if it has a JTAG gate/reset but I haven't found it except the ones for R_PIO etc. I also have the doubt that S-JTAG is dedicated to AR100 co-processor, maybe? Kind regards -- Giulio Benetti Benetti Engineering sas