From patchwork Fri May 1 20:50:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Grygorii Strashko X-Patchwork-Id: 11523241 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D4832913 for ; Fri, 1 May 2020 20:50:33 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AF19B216FD for ; Fri, 1 May 2020 20:50:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ddqZqVRm"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ti.com header.i=@ti.com header.b="wpnPM3WC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AF19B216FD Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=pXabdVl/NjnVKnO+kg2xeCE2ftcAb7g3yuYBv/Sw4Kk=; b=ddqZqVRmPZ46hi QJUBjDXd3DogRSR7lg8dWNVXlLB3lwkn6PXztmqeBwXapJe3LYTR8lgf9J4/OOIZDrdgwb1Ysci1b U/1F+ncrJQ8vX8y2JaAnlTDcLaTeQExLrv6mwVrEfLBChmJZmabs0LTGonG28Ix15oHqmmiTby1K/ iViaepXYdLYF9jSZRgcLWJ5Q+7JddDieAhoaQG1GeLXl4IV9Z/lNQpw9RvlUxc50T2AJtNdB3KBec K5wCvHkbkZGR557dlTobngAc1PL2kpEoUwzJRTjVo1nYcv6evDXENWMcSLabT6G1n6XRY+Ui2dsVw mrj0q/L2yza/5tr+p8Dw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jUcc7-0000kw-GR; Fri, 01 May 2020 20:50:27 +0000 Received: from lelv0143.ext.ti.com ([198.47.23.248]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jUcc2-0000ja-0e for linux-arm-kernel@lists.infradead.org; Fri, 01 May 2020 20:50:24 +0000 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 041KoED9011902; Fri, 1 May 2020 15:50:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1588366214; bh=sttXSPRWFfKNYpmJR/8jZ/NACgQEfJehdKwZvLb3aoA=; h=From:To:CC:Subject:Date; b=wpnPM3WCmaNhOO/CmnDKa6itIBcUTPMKPc0Ga7unvvYwXfa2k6E+McS6UfHPzbhmE dkEZm1VeuA16hvgnGUAC3lfhuIADuWKOwuPkwxbkJrCHYR+nQfqzk/+QThSAoWUWQ0 p7jQCx8yVDmyn5n5oHRmIyYDR4n8VYm2njKvPmXw= Received: from DLEE100.ent.ti.com (dlee100.ent.ti.com [157.170.170.30]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 041KoEEM039844 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 1 May 2020 15:50:14 -0500 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Fri, 1 May 2020 15:50:14 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Fri, 1 May 2020 15:50:14 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 041KoDFS076888; Fri, 1 May 2020 15:50:14 -0500 From: Grygorii Strashko To: Richard Cochran , Murali Karicheri , "David S. Miller" , Rob Herring , Tero Kristo Subject: [PATCH net-next 0/7] net: ethernet: ti: k3: introduce common platform time sync driver - cpts Date: Fri, 1 May 2020 23:50:04 +0300 Message-ID: <20200501205011.14899-1-grygorii.strashko@ti.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200501_135022_185820_0FDF80F5 X-CRM114-Status: GOOD ( 14.90 ) X-Spam-Score: -2.5 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [198.47.23.248 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nishanth Menon , devicetree@vger.kernel.org, Grygorii Strashko , Lokesh Vutla , netdev@vger.kernel.org, Sekhar Nori , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Hi This series introduced support for significantly upgraded TI A65x/J721E Common platform time sync (CPTS) modules which are part of AM65xx Time Synchronization Architecture [1]. The TI A65x/J721E now contain more than one CPTS instance: - MCU CPSW CPTS (IEEE 1588 compliant) - Main NAVSS CPTS (central) - PCIe CPTS(s) (PTM compliant) - J721E: Main CPSW9g CPTS (IEEE 1588 compliant) which can work as separately as interact to each other through Time Sync Router (TSR) and Compare Event Router (CER). In addition there are also ICSS-G IEP blocks which can perform similar timsync functions, but require FW support. More info also available in TRM [2][3]. Not all above modules are available to the Linux by as of now as some of them are reserved for RTOS/FW purposes. The scope of this submission is TI A65x/J721E CPSW CPTS and Main NAVSS CPTS, and TSR was used for testing purposes. +---------------------------+ | MCU CPSW | +-------------------+ +------------------------+ | TS | | Main Navss CPTS | | Time Sync Router (TSR) | | +-------------+ | | | | | | | | | | HW1_TS +<----------+ | | +--------v-----+ +--+--+ | | | | | | CPTS | |Port | | ... | | | X+-->HW1_TS | | | | HW8_TS <------------<---------+ | X|-->HW2_TS | +--^--+ | | | | +--------------->HW3_TS | | | | | | | +--------------->HW4_TS | | | | | | | | | | | | | | | | | | | | | | | | Genf0 +-----------> (A)---------+ +<--------------+Genf0 | | | | | | | | | | | | | | ... | | +-----------> <---------------+Genf1 ESTf+-------+ | | | | | | | | | | | | | | +--------------+ | | Genf8 +---------->+ | | | | | | SYNC0 ... SYNC3 | | | +-------------------+ +------+------------+----+ +---------------------------+ + + X X (A) shows possible routing path for MCU CPSW CPTS Genf0 signal as an example. Main features of the new TI A65x/J721E CPTS modules are: - 64-bit timestamp/counter mode support in ns by using add_val - implemented in HW PPM and nudge adjustment. - control of time sync events via interrupt or polling - selection of multiple external reference clock sources - hardware timestamp of ext. inputs events (HWx_TS_PUSH) - periodic generator function outputs (TS_GENFx) - (CPSW only) Ethernet Enhanced Scheduled Traffic Operations (CPTS_ESTFn), which drives TSN schedule - timestamping of all RX packets bypassing CPTS FIFO Patch 1 - DT bindings Patch 2 - the AM65x/J721E driver Patch 3 - enables packet timestamping support in TI AM65x/J721E MCU CPSW driver. Patches 4-7 - DT updates. === PTP Testing: phc2sys -s CLOCK_REALTIME -c eth0 -m -O 0 -u30 phc2sys[627.331]: eth0 rms 409912446712787392 max 1587584079521858304 freq -6665 +/- 35040 delay 832 +/- 27 phc2sys[657.335]: eth0 rms 33 max 66 freq -0 +/- 28 delay 820 +/- 30 phc2sys[687.339]: eth0 rms 37 max 70 freq -1 +/- 32 delay 830 +/- 29 phc2sys[717.343]: eth0 rms 33 max 71 freq -0 +/- 29 delay 828 +/- 23 phc2sys[747.346]: eth0 rms 35 max 75 freq -0 +/- 31 delay 829 +/- 26 phc2sys[777.350]: eth0 rms 37 max 68 freq -1 +/- 32 delay 825 +/- 25 phc2sys[807.354]: eth0 rms 28 max 57 freq -1 +/- 25 delay 824 +/- 21 phc2sys[837.358]: eth0 rms 43 max 81 freq -1 +/- 37 delay 836 +/- 23 phc2sys[867.361]: eth0 rms 33 max 74 freq +0 +/- 29 delay 828 +/- 24 phc2sys[897.365]: eth0 rms 35 max 77 freq -2 +/- 30 delay 824 +/- 25 phc2sys[927.369]: eth0 rms 28 max 50 freq +0 +/- 25 delay 825 +/- 25 ptp4l -P -2 -H -i eth0 -l 6 -m -q -p /dev/ptp1 -f ptp.cfg -s ptp4l[22095.754]: port 1: MASTER to UNCALIBRATED on RS_SLAVE ptp4l[22097.754]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED ptp4l[22159.757]: rms 317 max 1418 freq +79 +/- 186 delay 410 +/- 1 ptp4l[22223.760]: rms 9 max 24 freq +42 +/- 12 delay 409 +/- 1 ptp4l[22287.763]: rms 10 max 28 freq +41 +/- 11 delay 410 +/- 1 ptp4l[22351.767]: rms 10 max 26 freq +34 +/- 12 delay 410 +/- 1 ptp4l[22415.770]: rms 10 max 26 freq +49 +/- 14 delay 410 +/- 1 === Ext. HW_TS and Genf testing: For testing purposes Time Sync Router (TSR) can be modeled in DT as pin controller + timesync_router: timesync_router@A40000 { + compatible = "pinctrl-single"; + reg = <0x0 0xA40000 0x0 0x800>; + #address-cells = <1>; + #size-cells = <0>; + #pinctrl-cells = <1>; + pinctrl-single,register-width = <32>; + pinctrl-single,function-mask = <0x800007ff>; + }; then signals routing can be done in board file, for example: +#define TS_OFFSET(pa, val) (0x4+(pa)*4) (0x80000000 | val) + +×ync_router { + pinctrl-names = "default"; + pinctrl-0 = <&mcu_cpts>; + + /* Example of the timesync routing */ + mcu_cpts: mcu_cpts { + pinctrl-single,pins = < + /* [cpts genf1] in13 -> out25 [cpts hw4_push] */ + TS_OFFSET(25, 13) + /* [cpts genf1] in13 -> out0 [main cpts hw1_push] */ + TS_OFFSET(0, 13) + /* [main cpts genf0] in4 -> out1 [main cpts hw2_push] */ + TS_OFFSET(1, 4) + /* [main cpts genf0] in4 -> out24 [cpts hw3_push] */ + TS_OFFSET(24, 4) + >; + }; +}; will create link: cpsw cpts Genf1 -> main cpts hw1_push -> cpsw cpts hw4_push main cpts Genf0 -> main cpts hw2_push -> cpsw cpts hw3_push #enable Main CPTS Genf0, period 1sec testptp -d /dev/ptp0 -i 0 -p 1000000000 periodic output request okay #enable Main CPTS HW2_TS and read testptp -d /dev/ptp0 -i 1 -e 5 external time stamp request okay event index 1 at 22583.000000025 event index 1 at 22584.000000025 event index 1 at 22585.000000025 event index 1 at 22586.000000025 event index 1 at 22587.000000025 #enable MCU CPSW CPTS HW3_TS and read testptp -d /dev/ptp1 -i 2 -e 5 external time stamp request okay event index 2 at 1587606764.249304554 event index 2 at 1587606765.249304467 event index 2 at 1587606766.249304380 event index 2 at 1587606767.249304293 event index 2 at 1587606768.249304206 [1] https://www.ti.com/lit/pdf/spracp7 [2] https://www.ti.com/lit/pdf/sprz452 [3] https://www.ti.com/lit/pdf/spruil1 Grygorii Strashko (7): dt-binding: ti: am65x: document common platform time sync cpts module net: ethernet: ti: introduce am654 common platform time sync driver net: ethernet: ti: am65-cpsw-nuss: enable packet timestamping support arm64: dts: ti: k3-am65-mcu: add cpsw cpts node arm64: dts: ti: k3-am65-main: add main navss cpts node arm64: dts: ti: k3-j721e-mcu: add mcu cpsw cpts node arm64: dts: ti: j721e-main: add main navss cpts node .../bindings/net/ti,k3-am654-cpsw-nuss.yaml | 7 + .../bindings/net/ti,k3-am654-cpts.yaml | 152 +++ arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 22 + arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 19 + arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 12 + .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 9 + drivers/net/ethernet/ti/Kconfig | 15 + drivers/net/ethernet/ti/Makefile | 1 + drivers/net/ethernet/ti/am65-cpsw-ethtool.c | 24 +- drivers/net/ethernet/ti/am65-cpsw-nuss.c | 172 +++ drivers/net/ethernet/ti/am65-cpsw-nuss.h | 6 +- drivers/net/ethernet/ti/am65-cpts.c | 1041 +++++++++++++++++ drivers/net/ethernet/ti/am65-cpts.h | 50 + 13 files changed, 1528 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/ti,k3-am654-cpts.yaml create mode 100644 drivers/net/ethernet/ti/am65-cpts.c create mode 100644 drivers/net/ethernet/ti/am65-cpts.h