From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 10 Jul 2023 08:38:44 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qIkXl-005NZu-Uo for lore@lore.pengutronix.de; Mon, 10 Jul 2023 08:38:44 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qIkXj-0003EK-Ho for lore@pengutronix.de; Mon, 10 Jul 2023 08:38:44 +0200 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:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=bea9kP2FBz+Pjr2vVjRl3Od6/bHHscGoipaoEKjR2qU=; b=gztnYjqGAyUoWo51HjrlkXe6O8 kqJ2NRyx1lYw8xMLjEDnYdbQQ8tcjI1OjCFcpBJlm7mWznSWOVFWqk437r18wkj79uKGCXw0+3Jc+ R2NExU7/P53xcUqEH9/RQpGLAnmD8AQCs/AlP0DD5NFx2fAY0GKXOEWxfbV5zF9uM6lYdHl1UQE/g CGaHVCYJJBLWeZtA5X+jSoZHev0KTNlXOgijb8+XzOxYD7nkiEDTk3IUoRxTJKOIHpqxbky1Pk78X d0R8xlgG5p95C+6AdTxvmOo+UeW5oXm23Ebzw+VqunoI/hyF4XfDwLnV1tOOFa7dyDOdc9OJ3nOk7 yX/Qv81A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qIkWM-00AaxM-2J; Mon, 10 Jul 2023 06:37:18 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qIkWG-00Aatp-31 for barebox@lists.infradead.org; Mon, 10 Jul 2023 06:37:15 +0000 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1qIkW4-0002w5-KL for barebox@lists.infradead.org; Mon, 10 Jul 2023 08:37:00 +0200 From: Marco Felsch To: barebox@lists.infradead.org Date: Mon, 10 Jul 2023 08:36:53 +0200 Message-Id: <20230710063653.660040-7-m.felsch@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230710063653.660040-1-m.felsch@pengutronix.de> References: <20230710063653.660040-1-m.felsch@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230709_233712_998679_DA23AFBA X-CRM114-Status: GOOD ( 14.11 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.8 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 7/7] net: phy: at803x: disable extended next page bit X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) This commit ports Linux commit: | commit 3c51fa5d2afe7a4909b53af5019635326389dd29 | Author: Russell King | Date: Tue Jan 12 22:59:43 2021 +0000 | | net: phy: ar803x: disable extended next page bit | | This bit is enabled by default and advertises support for extended | next page support. XNP is only needed for 10GBase-T and MultiGig | support which is not supported. Additionally, Cisco MultiGig switches | will read this bit and attempt 10Gb negotiation even though Next Page | support is disabled. This will cause timeouts when the interface is | forced to 100Mbps and auto-negotiation will fail. The interfaces are | only 1000Base-T and supporting auto-negotiation for this only requires | the Next Page bit to be set. | | Taken from: | https://github.com/SolidRun/linux-stable/commit/7406c5244b7ea6bc17a2afe8568277a8c4b126a9 | and adapted to mainline kernels by rmk. | | Signed-off-by: Russell King | Reviewed-by: Andrew Lunn | Link: https://lore.kernel.org/r/E1kzSdb-000417-FJ@rmk-PC.armlinux.org.uk | Signed-off-by: Jakub Kicinski Signed-off-by: Marco Felsch --- drivers/net/phy/at803x.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c index d8a9c3588f..577bdf1244 100644 --- a/drivers/net/phy/at803x.c +++ b/drivers/net/phy/at803x.c @@ -365,7 +365,13 @@ static int at803x_config_init(struct phy_device *phydev) if (ret < 0) return ret; - return 0; + /* Ar803x extended next page bit is enabled by default. Cisco + * multigig switches read this bit and attempt to negotiate 10Gbps + * rates even if the next page bit is disabled. This is incorrect + * behaviour but we still need to accommodate it. XNP is only needed + * for 10Gbps support, so disable XNP. + */ + return phy_modify(phydev, MII_ADVERTISE, MDIO_AN_CTRL1_XNP, 0); } static struct phy_driver at803x_driver[] = { -- 2.39.2