From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MSGID_FROM_MTA_HEADER,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55063C433E7 for ; Wed, 15 Jul 2020 09:04:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 27A332064C for ; Wed, 15 Jul 2020 09:04:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="V/zv+qxO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730410AbgGOJEi (ORCPT ); Wed, 15 Jul 2020 05:04:38 -0400 Received: from mail-eopbgr140074.outbound.protection.outlook.com ([40.107.14.74]:46210 "EHLO EUR01-VE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727930AbgGOJEi (ORCPT ); Wed, 15 Jul 2020 05:04:38 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ofpuwDb9c3Roj936upXSDSjoiFUsW4+T3x2p7TE6X0WEY7J26GkjsK6WdddqNkHsYXHWoQC8u1ldvnY4xmmcP1qzo2xmBGqfB6NYwMJj+M5sH1ZT09jpPr+itYCnW9aTt/7bWfV5XdW/fPOMrkKE5Aw1tHaMX1R+Ya0jvkPzxStG89ou1je9wkRS+5/2lYpVeaV9LkX2IZoPhE9ZlSz/iM+80dPoBMevWtF/RIM9kobzYWNBAJBdgwjwweU+FDI2kXSfuap90Cqr7vUXedn2+LvMNR/rvfet4/xczCKyOnU6tIpAw2YtDQ7MqwJ+EKihncw6CJPt0dKXxLvhwWrxsw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=BJ5XZbCs8RAzB9lYlq+k6vXcMgO69MZn9141tCuCJnc=; b=c0A1gBsbPDqmaHQzEjZIWMWNDOQlnAL7o5kC3UoiWiB9/Y8APQOrHXBVk54iGvkubtVE81abXnKEQjLN3hbEtm1eHNsdhUqz8BwdZyR/pQ0AiP59kJH6CaW7dhFoCH7PfekNLdKjON5KRX0EqYqRnq3mWY7gb+9Qr4N2IbSzAyuHqpaYNfhWNvLJLF6YUSHNRp5CXrDbFDGQ4y9u8aMopLXYzS4rBQJbzuyzpYeHiJuWGxFWd2hgPeQ6cc3KMDQlYpfazt/wxopi7/n+AhxVld2PFcUJWHmrdUnwXzp3olm9/0vpimOV2rmUPLw3O+e9+D2LDyt5fQDXfYKxvAcm4g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com; dkim=pass header.d=oss.nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com; s=selector2-NXP1-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=BJ5XZbCs8RAzB9lYlq+k6vXcMgO69MZn9141tCuCJnc=; b=V/zv+qxOIQL9J1JmDG0VranoeInquNJkCdZPbVGCSWJzliTH1Id8S6Wn+0j8BBBBRUaF+GKl5ERg9oXOsuHPtb/CeTWvrHUmbBWI1wFWnNLYLemrWxkWVn1oKOOu47oZqikOWEI3KpB9HIsAJDl5Om8BtI02yzSmOFO4OI2dVvE= Authentication-Results: arm.com; dkim=none (message not signed) header.d=none;arm.com; dmarc=none action=none header.from=oss.nxp.com; Received: from AM0PR04MB5636.eurprd04.prod.outlook.com (2603:10a6:208:130::22) by AM0PR04MB5203.eurprd04.prod.outlook.com (2603:10a6:208:c1::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3174.20; Wed, 15 Jul 2020 09:04:34 +0000 Received: from AM0PR04MB5636.eurprd04.prod.outlook.com ([fe80::7dda:a30:6b25:4d45]) by AM0PR04MB5636.eurprd04.prod.outlook.com ([fe80::7dda:a30:6b25:4d45%7]) with mapi id 15.20.3174.026; Wed, 15 Jul 2020 09:04:34 +0000 From: Calvin Johnson To: Jeremy Linton , Russell King - ARM Linux admin , Jon , Cristi Sovaiala , Ioana Ciornei , Andrew Lunn , Andy Shevchenko , Florian Fainelli , Madalin Bucur Cc: netdev@vger.kernel.org, linux.cj@gmail.com, linux-acpi@vger.kernel.org, Calvin Johnson Subject: [net-next PATCH v7 1/6] Documentation: ACPI: DSD: Document MDIO PHY Date: Wed, 15 Jul 2020 14:33:55 +0530 Message-Id: <20200715090400.4733-2-calvin.johnson@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200715090400.4733-1-calvin.johnson@oss.nxp.com> References: <20200715090400.4733-1-calvin.johnson@oss.nxp.com> Content-Type: text/plain X-ClientProxiedBy: SG2PR02CA0070.apcprd02.prod.outlook.com (2603:1096:4:54::34) To AM0PR04MB5636.eurprd04.prod.outlook.com (2603:10a6:208:130::22) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv03152.swis.in-blr01.nxp.com (14.142.151.118) by SG2PR02CA0070.apcprd02.prod.outlook.com (2603:1096:4:54::34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3195.18 via Frontend Transport; Wed, 15 Jul 2020 09:04:30 +0000 X-Mailer: git-send-email 2.17.1 X-Originating-IP: [14.142.151.118] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 342b8908-4354-4e8d-d8c6-08d8289e1790 X-MS-TrafficTypeDiagnostic: AM0PR04MB5203: X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7219; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: KBkCSq+3odw7n6NsoUNF2XOta3Pd+JSjoMUU9LgGZNOQbIXOrTj9v98LinO32QZRy6oVA2cQQTEuaVIGB6joKpFoe9TFZC+u0n+FZUz8N01i3/fnFmZmf2Dr/G2gOQua031fYYe9PVWXUKvYptEk+U9+71/a8Kx80IwUSceIJbhqNGp80J3MaksegvrrMvwjkIp8zw23V5XqNAjWt2Yv0rV+U8wMcQtzh5FPjmhlgQWhN0/LId0LciuAxZ/g/d3PIiY5tYsdmfZ9p3SwoRgTrU/XPi3pcO8yla7AKqTC/c8E0DphasCg9WEXYZFxCKxgYMSvRzo/ZkgNIeHXK4bMQ0VmrNjJYz42TCguDm45YN+scG0q14/xFHc0tICcxLdh X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM0PR04MB5636.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(4636009)(136003)(396003)(39860400002)(346002)(376002)(366004)(86362001)(6512007)(8676002)(55236004)(6486002)(6506007)(8936002)(5660300002)(52116002)(316002)(1076003)(4326008)(6666004)(1006002)(110136005)(2906002)(6636002)(478600001)(16526019)(66556008)(186003)(66476007)(956004)(2616005)(44832011)(26005)(66946007)(110426005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 342b8908-4354-4e8d-d8c6-08d8289e1790 X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB5636.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jul 2020 09:04:34.0036 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: lCxwYTqmbg8fa0EIbHZJx6oMAt/6aIcdzNbOADS99J4064CIQbvttFfN6U7Ahx8iphEqICXM4tQRnIC3CkALbw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB5203 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Introduce ACPI mechanism to get PHYs registered on a MDIO bus and provide them to be connected to MAC. An ACPI node property "mdio-handle" is introduced to reference the MDIO bus on which PHYs are registered with autoprobing method used by mdiobus_register(). Describe properties "phy-channel" and "phy-mode" Signed-off-by: Calvin Johnson --- Changes in v7: None Changes in v6: None Changes in v5: None Changes in v4: None Changes in v3: - cleanup based on v2 comments - Added description for more properties - Added MDIO node DSDT entry Changes in v2: None Documentation/firmware-guide/acpi/dsd/phy.rst | 90 +++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/firmware-guide/acpi/dsd/phy.rst diff --git a/Documentation/firmware-guide/acpi/dsd/phy.rst b/Documentation/firmware-guide/acpi/dsd/phy.rst new file mode 100644 index 000000000000..0132fee10b45 --- /dev/null +++ b/Documentation/firmware-guide/acpi/dsd/phy.rst @@ -0,0 +1,90 @@ +.. SPDX-License-Identifier: GPL-2.0 + +========================= +MDIO bus and PHYs in ACPI +========================= + +The PHYs on an mdiobus are probed and registered using mdiobus_register(). +Later, for connecting these PHYs to MAC, the PHYs registered on the +mdiobus have to be referenced. + +mdio-handle +----------- +For each MAC node, a property "mdio-handle" is used to reference the +MDIO bus on which the PHYs are registered. On getting hold of the MDIO +bus, use find_phy_device() to get the PHY connected to the MAC. + +phy-channel +----------- +Property "phy-channel" defines the address of the PHY on the mdiobus. + +phy-mode +-------- +Property "phy-mode" defines the type of PHY interface. + +An example of this is shown below:: + +DSDT entry for MAC where MDIO node is referenced +------------------------------------------------ + Scope(\_SB.MCE0.PR17) // 1G + { + Name (_DSD, Package () { + ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), + Package () { + Package () {"phy-channel", 1}, + Package () {"phy-mode", "rgmii-id"}, + Package () {"mdio-handle", Package (){\_SB.MDI0}} + } + }) + } + + Scope(\_SB.MCE0.PR18) // 1G + { + Name (_DSD, Package () { + ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), + Package () { + Package () {"phy-channel", 2}, + Package () {"phy-mode", "rgmii-id"}, + Package () {"mdio-handle", Package (){\_SB.MDI0}} + } + }) + } + +DSDT entry for MDIO node +------------------------ +a) Silicon Component +-------------------- + Scope(_SB) + { + Device(MDI0) { + Name(_HID, "NXP0006") + Name(_CCA, 1) + Name(_UID, 0) + Name(_CRS, ResourceTemplate() { + Memory32Fixed(ReadWrite, MDI0_BASE, MDI_LEN) + Interrupt(ResourceConsumer, Level, ActiveHigh, Shared) + { + MDI0_IT + } + }) // end of _CRS for MDI0 + Name (_DSD, Package () { + ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), + Package () { + Package () {"little-endian", 1}, + } + }) + } // end of MDI0 + } + +b) Platform Component +--------------------- + Scope(\_SB.MDI0) + { + Device(PHY1) { + Name (_ADR, 0x1) + } // end of PHY1 + + Device(PHY2) { + Name (_ADR, 0x2) + } // end of PHY2 + } -- 2.17.1