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 276B3C677F1 for ; Mon, 16 Jan 2023 18:03:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232988AbjAPSDY (ORCPT ); Mon, 16 Jan 2023 13:03:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231908AbjAPSCq (ORCPT ); Mon, 16 Jan 2023 13:02:46 -0500 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A769A14490; Mon, 16 Jan 2023 09:48:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=YlUo0VHGiHMqOq7GALN7Pw8+2+ppyERsUnHndjGHafs=; b=OkJyz9r3mgDSaw8Y2k1jx3/8VU c8RMeUzS9M04RYoq1Lk4ZHGQl0R+MP1845w3OzyAeAqYxy3M3RF1YhDYLyZRu/UCelyBeXKAkyK8T oM98rrAddjYBDUzkHi5/CNg0FXFcinO2Wrxgv77CMPZcCUB7Pqkpfd7fuolnMrgwOxR9K9r2zQOvh CVMtSThx2FDWKBeWPOm6UByPU66XVEO2OaBNDTgTCQp2WOHq6l+TACWelbDj7ZwRqZqa4qVIaKhRh qDKn7WUiILBPzXUMhAQ0QrII1eKTpWJzbXi9U2fgp+hqkSyeybbA2pf5T5Gl82oZMx8T/bbro38Br PCACa7/g==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:36136) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1pHTaM-0005YZ-3b; Mon, 16 Jan 2023 17:47:53 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1pHTaG-0006CW-EU; Mon, 16 Jan 2023 17:47:48 +0000 Date: Mon, 16 Jan 2023 17:47:48 +0000 From: "Russell King (Oracle)" To: =?iso-8859-1?Q?Bj=F8rn?= Mork Cc: Frank Wunderlich , Frank Wunderlich , linux-mediatek@lists.infradead.org, Alexander Couzens , Felix Fietkau , John Crispin , Sean Wang , Mark Lee , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Matthias Brugger , netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] net: mtk_sgmii: implement mtk_pcs_ops Message-ID: References: <87o7qy39v5.fsf@miraculix.mork.no> <87h6wq35dn.fsf@miraculix.mork.no> <87bkmy33ph.fsf@miraculix.mork.no> <875yd630cu.fsf@miraculix.mork.no> <871qnu2ztz.fsf@miraculix.mork.no> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <871qnu2ztz.fsf@miraculix.mork.no> Sender: Russell King (Oracle) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 16, 2023 at 05:45:12PM +0100, Bjørn Mork wrote: > Bjørn Mork writes: > > >> You have bmcr=0x1000, but the code sets two bits - SGMII_AN_RESTART and > >> SGMII_AN_ENABLE which are bits 9 and 12, so bmcr should be 0x1200, not > >> 0x1000. Any ideas why? > > > > No, not really > > Doh! Looked over it again, and this was my fault of course. Had an > > "bmcr = SGMII_AN_ENABLE;" > > line overwriting the original value from a previous attempt without > changing the if condition.. Thanks for spotting that. > > But this still doesn't work any better: > > [ 43.019395] mtk_soc_eth 15100000.ethernet wan: Link is Down > [ 45.099898] mtk_sgmii_select_pcs: id=1 > [ 45.103653] mtk_pcs_config: interface=4 > [ 45.107473] offset:0 0x140 > [ 45.107476] offset:4 0x4d544950 > [ 45.110181] offset:8 0x20 > [ 45.113305] forcing AN > [ 45.118256] mtk_pcs_config: rgc3=0x0, advertise=0x1 (changed), link_timer=1600000, sgm_mode=0x103, bmcr=0x1200, use_an=1 > [ 45.129191] mtk_pcs_link_up: interface=4 > [ 45.133100] offset:0 0x81140 > [ 45.133102] offset:4 0x4d544950 > [ 45.135967] offset:8 0x1 > [ 45.139104] mtk_soc_eth 15100000.ethernet wan: Link is Up - 1Gbps/Full - flow control rx/tx In your _dump_pcs_ctrl() function, please can you dump the SGMSYS_SGMII_MODE register as well (offset 0x20), in case this gives more clue as to what's going on. Thanks. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!