From patchwork Tue Jul 14 17:15:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Min Li X-Patchwork-Id: 1329014 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=renesas.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4B5nhD36Vzz9sR4 for ; Wed, 15 Jul 2020 03:34:36 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728568AbgGNRed (ORCPT ); Tue, 14 Jul 2020 13:34:33 -0400 Received: from pbmsgap02.intersil.com ([192.157.179.202]:60974 "EHLO pbmsgap02.intersil.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726169AbgGNRed (ORCPT ); Tue, 14 Jul 2020 13:34:33 -0400 X-Greylist: delayed 1119 seconds by postgrey-1.27 at vger.kernel.org; Tue, 14 Jul 2020 13:34:32 EDT Received: from pps.filterd (pbmsgap02.intersil.com [127.0.0.1]) by pbmsgap02.intersil.com (8.16.0.27/8.16.0.27) with SMTP id 06EHDIkX023308; Tue, 14 Jul 2020 13:15:50 -0400 Received: from pbmxdp02.intersil.corp (pbmxdp02.pb.intersil.com [132.158.200.223]) by pbmsgap02.intersil.com with ESMTP id 3277kcs6pa-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Tue, 14 Jul 2020 13:15:50 -0400 Received: from pbmxdp03.intersil.corp (132.158.200.224) by pbmxdp02.intersil.corp (132.158.200.223) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.1979.3; Tue, 14 Jul 2020 13:15:49 -0400 Received: from localhost (132.158.202.109) by pbmxdp03.intersil.corp (132.158.200.224) with Microsoft SMTP Server id 15.1.1979.3 via Frontend Transport; Tue, 14 Jul 2020 13:15:48 -0400 From: To: , CC: , , , Min Li Subject: [PATCH net 1/1] docs: ptp.rst: add support for Renesas (IDT) ClockMatrix Date: Tue, 14 Jul 2020 13:15:20 -0400 Message-ID: <1594746920-28760-1-git-send-email-min.li.xe@renesas.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-TM-AS-MML: disable X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-07-14_06:2020-07-14,2020-07-14 signatures=0 X-Proofpoint-Spam-Details: rule=junk_notspam policy=junk score=0 suspectscore=2 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-2006250000 definitions=main-2007140126 X-Proofpoint-Spam-Reason: mlx Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Min Li Add below to “Ancillary clock features” section - Low Pass Filter (LPF) access from user space Add below to list of “Supported hardware” section + Renesas (IDT) ClockMatrix™ Signed-off-by: Min Li --- Documentation/driver-api/ptp.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/driver-api/ptp.rst b/Documentation/driver-api/ptp.rst index a15192e..664838a 100644 --- a/Documentation/driver-api/ptp.rst +++ b/Documentation/driver-api/ptp.rst @@ -23,6 +23,7 @@ PTP hardware clock infrastructure for Linux + Ancillary clock features - Time stamp external events - Period output signals configurable from user space + - Low Pass Filter (LPF) access from user space - Synchronization of the Linux system time via the PPS subsystem PTP hardware clock kernel API @@ -94,3 +95,14 @@ Supported hardware - Auxiliary Slave/Master Mode Snapshot (optional interrupt) - Target Time (optional interrupt) + + * Renesas (IDT) ClockMatrix™ + + - Up to 4 independent PHC channels + - Integrated low pass filter (LPF), access via .adjPhase (compliant to ITU-T G.8273.2) + - Programmable output periodic signals + - Programmable inputs can time stamp external triggers + - Driver and/or hardware configuration through firmware (idtcm.bin) + - LPF settings (bandwidth, phase limiting, automatic holdover, physical layer assist (per ITU-T G.8273.2)) + - Programmable output PTP clocks, any frequency up to 1GHz (to other PHY/MAC time stampers, refclk to ASSPs/SoCs/FPGAs) + - Lock to GNSS input, automatic switching between GNSS and user-space PHC control (optional)