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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C39FCC61DA3 for ; Tue, 21 Feb 2023 08:04:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233651AbjBUIE4 (ORCPT ); Tue, 21 Feb 2023 03:04:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233113AbjBUIEx (ORCPT ); Tue, 21 Feb 2023 03:04:53 -0500 Received: from mx0b-0064b401.pphosted.com (mx0b-0064b401.pphosted.com [205.220.178.238]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4954F1A959; Tue, 21 Feb 2023 00:04:51 -0800 (PST) Received: from pps.filterd (m0250812.ppops.net [127.0.0.1]) by mx0a-0064b401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 31L7kAkQ007685; Tue, 21 Feb 2023 08:04:26 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=windriver.com; h=subject : to : cc : references : from : message-id : date : in-reply-to : content-type : content-transfer-encoding : mime-version; s=PPS06212021; bh=WxAYs9bS8/HSgrA3i/kDScYLRCWEOVJNBXev+Jy5ws8=; b=M0e6V6S6IkDJ4f28dwnm0xPijnoOM/17O/98prb+ImKpcqPhS3XdvAb7ADv9XnEKd5Nj kXhhFUUwH9/8PbtXjTpDtyqVSRmAUelXWSvHhKdd73BiHd2SLlAYETo2UKbXV95EgKnI QBq3YfrlzljMPPm48p48csSGofbrDW1wausgW/SiqBwWbVowWDzgHhKgaYFQOIoaTSA3 GfNQ6ipOSireylivkZC0mQd+Rk0VZeeA8QCTGSmHCMzdiiN2YV5srJCq9A5UlBus5ucH wEVsqc39zgkav1PJ5EfVWbeBEOp+apriCr/yfzIMDQ/fEEfeyyAnlCBSmBa3wmcBkYnG eQ== Received: from nam12-bn8-obe.outbound.protection.outlook.com (mail-bn8nam12lp2169.outbound.protection.outlook.com [104.47.55.169]) by mx0a-0064b401.pphosted.com (PPS) with ESMTPS id 3ntpem2eku-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Feb 2023 08:04:26 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=EHOmtkWVqd3DqljwI1bp+o+/yHzorLiFVXMttct60wodBRwoEx2CqlpCA5LiY7Xv1NXpAVvLC9r0k+FC9okxLiK8uX2AGojOQoz6GtU8xTc/FjmXdvSiPz1p9wWqDaVuNECd2phHX5iBriZVpFrwHiOu2339KOT/mPmVsvKF5sR3EAo/MCIWTdXi/tNtQz03+qLlTbldeaw7Qz94LablDCt0y9rRiNermN/h/+BWjqAzGIVhmUKohHencZZF7GbZN415tx3cb2ALlKooPBv2csTnzu2yfMV+Efey3wmuTNrduD6qrIQ8dAoUDD4VY+Fs5DbgRDSTfljdEu8/cdZ05g== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=WxAYs9bS8/HSgrA3i/kDScYLRCWEOVJNBXev+Jy5ws8=; b=mYHUsvLAKIbkDk8m1JE0Pz9fBvRswUsK1JSuf2tHrIanMMvmcU5YlIlCZreAJTOZ99FAAo8fkQh7YYJJ/axfjCezqxsd+v2qFbY1OssdEfdaBiAEpTwDv73yFxVay2wm/85ocsSaoi/5iv+eDgPu8KKggx+jyeLFVHtvm4LWQF2ewru2yAH7zDmCC+HaXiU7VorlScoRAJscPqyl+xmtoZAyGyaMuvBiJErxza85IuX8XNtzsk/Os9gCpnI28ib8totrpBuUk2X7GOPtfPSkSpxk2A8OcNd1QBgyZSbkTSU+Ad8MA15+N0wMMZqNh+r64TcIFEgkBe9h5+inC3okkg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=windriver.com; dmarc=pass action=none header.from=windriver.com; dkim=pass header.d=windriver.com; arc=none Received: from MW5PR11MB5764.namprd11.prod.outlook.com (2603:10b6:303:197::8) by SJ0PR11MB5149.namprd11.prod.outlook.com (2603:10b6:a03:2d1::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6111.21; Tue, 21 Feb 2023 08:04:22 +0000 Received: from MW5PR11MB5764.namprd11.prod.outlook.com ([fe80::7709:2bed:5653:b4d1]) by MW5PR11MB5764.namprd11.prod.outlook.com ([fe80::7709:2bed:5653:b4d1%4]) with mapi id 15.20.6111.021; Tue, 21 Feb 2023 08:04:22 +0000 Subject: Re: BCM54220: After the BCM54220 closes the auto-negotiation, the configuration forces the 1000M network port to be linked down all the time. To: Florian Fainelli , "bcm-kernel-feedback-list@broadcom.com" , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , "pabeni@redhat.com" , "richardcochran@gmail.com" Cc: "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" References: From: wangxiaolei Message-ID: Date: Tue, 21 Feb 2023 16:04:16 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-ClientProxiedBy: BY5PR17CA0063.namprd17.prod.outlook.com (2603:10b6:a03:167::40) To MW5PR11MB5764.namprd11.prod.outlook.com (2603:10b6:303:197::8) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MW5PR11MB5764:EE_|SJ0PR11MB5149:EE_ X-MS-Office365-Filtering-Correlation-Id: 46ad0c97-2ff6-4ebe-1821-08db13e23dd5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:MW5PR11MB5764.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230025)(4636009)(136003)(376002)(396003)(346002)(39850400004)(366004)(451199018)(36756003)(54906003)(110136005)(83380400001)(316002)(6666004)(6486002)(478600001)(966005)(2616005)(53546011)(6506007)(6512007)(186003)(26005)(41300700001)(86362001)(8936002)(2906002)(921005)(5660300002)(7416002)(4326008)(31696002)(66476007)(66556008)(8676002)(38100700002)(66946007)(31686004)(84970400001)(43062005)(43740500002)(45980500001)(357404004);DIR:OUT;SFP:1101; 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When configured to force 1000M， >>      The link status of phy status reg(0x1) is always 0, and the chip of >> phy is BCM54220, but I did not find the relevant datasheet on BCM >> official website, does anyone have any suggestions or the datasheet of >> BCM54220? > > I don't have access to a system with a BCM54220 but can look at the > datasheet, could you provide the full output of mii-diag in both cases? In auto-negotiation mode: normal Link Up, dump of registers: Read: reg0, 0x1140 Read: reg1, 0x796d Read: reg2, 0x600d Read: reg3, 0x8589 Read: reg4, 0x05e1 Read: reg5, 0xc5e1 Read: reg6, 0x006d Read: reg7, 0x2001 Read: reg8, 0x5bbc Read: reg9, 0x0200 Read: rega, 0x3800 Read: regb, 0x0000 Read: regc, 0x0000 Read: regd, 0x0000 Read: rege, 0x0000 Read: regf, 0x3000 Read: reg10, 0x0000 Read: reg11, 0x0301 Read: reg12, 0x0000 Read: reg13, 0x0000 Read: reg14, 0x0000 Read: reg15, 0xff1f Read: reg16, 0x043e Read: reg17, 0xffff Read: reg18, 0x8800 Read: reg19, 0x3490 Read: reg1a, 0x0000 Read: reg1b, 0x0000 When auto-negotiation is disabled and configured as forced 1000M mode, the register dump: Read: reg0, 0x0140 Read: reg1, 0x7949 Read: reg2, 0x600d Read: reg3, 0x8589 Read: reg4, 0x0401 Read: reg5, 0x0000 Read: reg6, 0x0064 Read: reg7, 0x2001 Read: reg8, 0x0000 Read: reg9, 0x0200 Read: rega, 0x0000 Read: regb, 0x0000 Read: regc, 0x0000 Read: regd, 0x0000 Read: rege, 0x0000 Read: regf, 0x3000 Read: reg10, 0x0000 Read: reg11, 0x0000 Read: reg12, 0x0000 Read: reg13, 0x0000 Read: reg14, 0x0000 Read: reg15, 0x0700 Read: reg16, 0x0006 Read: reg17, 0xffff Read: reg18, 0x8000 Read: reg19, 0x051d Read: reg1a, 0x0000 Read: reg1b, 0x0000 > What do the PC report as far as link partner advertisement goes etc.? The other end of the port is also in the link down state. > > You are using a twister pair cable to connect your two systems? I am using copper mode. And I found that the AR8031 PHY also has this problem. In the case of auto-negotiation, 1000M can be negotiated. When auto-negotiation is turned off, 10M and 100M can be Link Up, but 1000M can also be Link Down. I read the AR8031 manual https://pdf1. alldatasheet.com/datasheet-pdf/view/1132454/ETC2/AR8035.html, there is only such a statement "If auto-negotiation is disabled, a 10 BASE-Te or 100 BASE-TX can be manually selected using the IEEE MII registers .” thanks xiaolei > -- > Florian >