From patchwork Sat Jun 1 10:45:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Grygorii Strashko X-Patchwork-Id: 10971383 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4B59792A for ; Sat, 1 Jun 2019 10:46:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 39C2328D22 for ; Sat, 1 Jun 2019 10:46:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2DB9328D63; Sat, 1 Jun 2019 10:46:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BED0028D22 for ; Sat, 1 Jun 2019 10:46:07 +0000 (UTC) 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:References:In-Reply-To: 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: List-Owner; bh=2dyA3MccYfkq3PJWqs8FAhGmZdYlBuCRvVAU+8xckbA=; b=c84rT0bOAN25p8 aZffYrjfcm34NG5BQZUVtIMQIPbyhGV/wpKqbe+6drDaKU6DA2n4N/P0UYbkFjeaIYjN/jHJajAVe VNBwyLiGZeQ6+69ulpKV9OjpI5Mjyqmbldbx4UJCCtEK05E4LHu/3Krj3dHifligcauNrPDDpK26v uAD6lBhJPszaTniNWfJ5laqHzSxkbs343+iQXsAdVYrOK5t88Acj44YSV4qmvKA4baYubCMkYKhSi BpZkBhyhWsFrVv7hO/AQIZEBw5cZ+dG3Zcs44rJF1O04cy2XotYxkYtwL6jjEz996005s3j652kY1 4k4xn880ntW86S9Knx4Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hX1WT-0005k5-Rj; Sat, 01 Jun 2019 10:46:01 +0000 Received: from lelv0143.ext.ti.com ([198.47.23.248]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hX1WM-0005aR-WB for linux-arm-kernel@lists.infradead.org; Sat, 01 Jun 2019 10:45:58 +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 x51Ajqjw017215; Sat, 1 Jun 2019 05:45:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1559385952; bh=bf1JSQ3o+4GDGCtl8ezINMDggnzBuxoGXO5FYeY/4Us=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=gnkB/3MMf5QBf6L8L+KiWPEu0bmO3jO9L/Cq6HyDL8HWzBnOhWt5UHpYWrIYCEaPI OnIS3gPI0OJsjqpXDKnmGyb/C4r+BqTL0DwBVUNXQdbtF1cVQEtcbf5Wj+E6kfrj3M XdX2bp3bb7Ac3mwH/SxcAuHg0DDJTz77wqm9QdRg= Received: from DLEE110.ent.ti.com (dlee110.ent.ti.com [157.170.170.21]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x51AjqYf022690 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Sat, 1 Jun 2019 05:45:52 -0500 Received: from DLEE108.ent.ti.com (157.170.170.38) by DLEE110.ent.ti.com (157.170.170.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Sat, 1 Jun 2019 05:45:51 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Sat, 1 Jun 2019 05:45:51 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id x51Ajobp051295; Sat, 1 Jun 2019 05:45:50 -0500 From: Grygorii Strashko To: "David S. Miller" , Santosh Shilimkar , Richard Cochran , Rob Herring Subject: [PATCH net-next 01/10] dt-bindings: doc: net: keystone-netcp: document cpts Date: Sat, 1 Jun 2019 13:45:25 +0300 Message-ID: <20190601104534.25790-2-grygorii.strashko@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190601104534.25790-1-grygorii.strashko@ti.com> References: <20190601104534.25790-1-grygorii.strashko@ti.com> 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-20190601_034555_313561_8569D3B8 X-CRM114-Status: GOOD ( 12.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Grygorii Strashko , Wingman Kwok , netdev@vger.kernel.org, Sekhar Nori , linux-kernel@vger.kernel.org, Murali Karicheri , 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 X-Virus-Scanned: ClamAV using ClamSMTP The Keystone 2 66AK2HK/E/L 1G Ethernet Switch Subsystems contains The Common Platform Time Sync (CPTS) module which is in general compatible with CPTS module found on TI AM3/4/5 SoCs. So, the basic support for Keystone 2 CPTS is available by default, but not documented. The Keystone 2 CPTS module supports also some additional features like time sync reference (RFTCLK) clock selection through CPTS_RFTCLK_SEL register (offset: x08) in CPTS module, which is modelled as multiplexer clock. This patch adds missed binding documentation for Keystone 2 66AK2HK/E/L CPTS module. Signed-off-by: Grygorii Strashko --- .../bindings/net/keystone-netcp.txt | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/Documentation/devicetree/bindings/net/keystone-netcp.txt b/Documentation/devicetree/bindings/net/keystone-netcp.txt index 6262c2f293b0..24f11e042f8d 100644 --- a/Documentation/devicetree/bindings/net/keystone-netcp.txt +++ b/Documentation/devicetree/bindings/net/keystone-netcp.txt @@ -104,6 +104,23 @@ Required properties: - 10Gb mac<->mac forced mode : 11 ----phy-handle: phandle to PHY device +- cpts: sub-node time synchronization (CPTS) submodule configuration +-- clocks: CPTS reference clock. Should point on cpts-refclk-mux clock. +-- clock-names: should be "cpts" +-- cpts-refclk-mux: multiplexer clock definition sub-node for CPTS reference (RFTCLK) clock +--- #clock-cells: should be 0 +--- clocks: list of CPTS reference (RFTCLK) clock's parents as defined in Data manual +--- ti,mux-tbl: array of multiplexer indexes as defined in Data manual +--- assigned-clocks: should point on cpts-refclk-mux clock +--- assigned-clock-parents: should point on required RFTCLK clock parent to be selected +-- cpts_clock_mult: (optional) Numerator to convert input clock ticks + into nanoseconds +-- cpts_clock_shift: (optional) Denominator to convert input clock ticks into + nanoseconds. + Mult and shift will be calculated basing on CPTS + rftclk frequency if both cpts_clock_shift and + cpts_clock_mult properties are not provided. + Optional properties: - enable-ale: NetCP driver keeps the address learning feature in the ethernet switch module disabled. This attribute is to enable the address @@ -168,6 +185,23 @@ netcp: netcp@2000000 { tx-queue = <648>; tx-channel = <8>; + cpts { + clocks = <&cpts_refclk_mux>; + clock-names = "cpts"; + + cpts_refclk_mux: cpts-refclk-mux { + #clock-cells = <0>; + clocks = <&chipclk12>, <&chipclk13>, + <&timi0>, <&timi1>, + <&tsipclka>, <&tsrefclk>, + <&tsipclkb>; + ti,mux-tbl = <0x0>, <0x1>, <0x2>, + <0x3>, <0x4>, <0x8>, <0xC>; + assigned-clocks = <&cpts_refclk_mux>; + assigned-clock-parents = <&chipclk12>; + }; + }; + interfaces { gbe0: interface-0 { slave-port = <0>; @@ -219,3 +253,13 @@ netcp: netcp@2000000 { }; }; }; + +CPTS board configuration - select external CPTS RFTCLK: + +&tsrefclk{ + clock-frequency = <500000000>; +}; + +&cpts_refclk_mux { + assigned-clock-parents = <&tsrefclk>; +};