From patchwork Fri Dec 13 13:41:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Machon X-Patchwork-Id: 13907106 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 494D8E7717D for ; Fri, 13 Dec 2024 13:52:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:CC:To:In-Reply-To:References :Message-ID:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=yKfBbxHydwYqiEjrCPEAkLzreoENst3I/mkA/o915RA=; b=xWAa5QRmERxaYcen/qmJ8hyYgE mnpG16PGOudAoIzS9ixz7wuMkualA1GYg0nOnJHaQn7Ob6+9UQtRbjlEwv11qbNYbtp5q7tZAdiIJ mwul8+BUNL/VIwgV2S+CMGmwD8zTv2YpYO8Ul+VdtLNDvjQvkw5W+jmCaC9WZqiOz4oDUMnLsa3vX s6vCY2Zmj4pZlpIFseITWjTcssZTmL5l9pTYWW3kkBvR2BoSh/9B+jHJWU4TgVQ7xKqOXsWiMUIKE 47HUrLdid6ftAaMgtNso8/fIgJHpq01epsYsy0sbQiGwz4SXbabhsBGRlAycl2pCJSMSgugdmHxhE 6LTwJwRg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tM65t-00000003tmT-33JY; Fri, 13 Dec 2024 13:52:37 +0000 Received: from esa.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tM5vm-00000003r7L-1AZM for linux-arm-kernel@lists.infradead.org; Fri, 13 Dec 2024 13:42:11 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1734097330; x=1765633330; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=gAozP5K90a5QtGx5y/pORzNem212AxL/4iPw5UgdVy4=; b=ho8+mgd5jQhM0hErrfiLTKDiX81kMIWmzzMrPP48wglE9JVgniiltxiK hJM+cVl8rpP8+3AbcRlq1bVK1jeF7gXN3GsCMFikEjyxEH28YwKOzWlqp 6wNWU7ttc8+YChdYvf3fYvogZLwRQlSRybIb/VJ4e/EBgYSzIaB2WuFEH 17UR72z723Ii9b4RRHnE79g9qlUsP/7EaN2TQH1o7bwA1UKmCbHkDGJp4 k37sErUIIzmBsrH9NKShx238BLCixC8JswolaYgFGMz5XuIkRmiYG6isz 2rK55SFDqK9pRixCKRYr7qt1CR1UhV1ISo9pyUWUQKtJ8UzccqbIDkJiC Q==; X-CSE-ConnectionGUID: itc9LroWQgSaHh3I2qeP/g== X-CSE-MsgGUID: 6PGRUvmUQNW2bos1uLvnmw== X-IronPort-AV: E=Sophos;i="6.12,231,1728975600"; d="scan'208";a="39217656" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 13 Dec 2024 06:42:08 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 13 Dec 2024 06:41:46 -0700 Received: from DEN-DL-M70577.microchip.com (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Fri, 13 Dec 2024 06:41:43 -0700 From: Daniel Machon Date: Fri, 13 Dec 2024 14:41:08 +0100 Subject: [PATCH net-next v4 9/9] dt-bindings: net: sparx5: document RGMII delays MIME-Version: 1.0 Message-ID: <20241213-sparx5-lan969x-switch-driver-4-v4-9-d1a72c9c4714@microchip.com> References: <20241213-sparx5-lan969x-switch-driver-4-v4-0-d1a72c9c4714@microchip.com> In-Reply-To: <20241213-sparx5-lan969x-switch-driver-4-v4-0-d1a72c9c4714@microchip.com> To: , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , "Lars Povlsen" , Steen Hegelund , Horatiu Vultur , Russell King , , , , CC: , , , , X-Mailer: b4 0.14-dev X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241213_054210_330708_1C2116C0 X-CRM114-Status: UNSURE ( 8.72 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The lan969x switch device supports two RGMII port interfaces that can be configured for MAC level rx and tx delays. Document two new properties {rx,tx}-internal-delay-ps in the bindings, used to select these delays. Signed-off-by: Daniel Machon Reviewed-by: Rob Herring (Arm) --- .../bindings/net/microchip,sparx5-switch.yaml | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml index dedfad526666..a73fc5036905 100644 --- a/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml +++ b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml @@ -129,6 +129,24 @@ properties: minimum: 0 maximum: 383 + rx-internal-delay-ps: + description: + RGMII Receive Clock Delay defined in pico seconds, used to select + the DLL phase shift between 1000 ps (45 degree shift at 1Gbps) and + 3300 ps (147 degree shift at 1Gbps). A value of 0 ps will disable + any delay. The Default is no delay. + enum: [0, 1000, 1700, 2000, 2500, 3000, 3300] + default: 0 + + tx-internal-delay-ps: + description: + RGMII Transmit Clock Delay defined in pico seconds, used to select + the DLL phase shift between 1000 ps (45 degree shift at 1Gbps) and + 3300 ps (147 degree shift at 1Gbps). A value of 0 ps will disable + any delay. The Default is no delay. + enum: [0, 1000, 1700, 2000, 2500, 3000, 3300] + default: 0 + required: - reg - phys