From patchwork Mon May 16 19:36:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 573311 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 440C2C433FE for ; Mon, 16 May 2022 20:04:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239201AbiEPUEp (ORCPT ); Mon, 16 May 2022 16:04:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48852 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348810AbiEPT66 (ORCPT ); Mon, 16 May 2022 15:58:58 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F70B43AFC; Mon, 16 May 2022 12:51:07 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 1151FB81612; Mon, 16 May 2022 19:51:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 61024C34100; Mon, 16 May 2022 19:51:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1652730664; bh=RztfQ90jXpDs3wSaZIRAhybCdZaqmicuc1/LNiTgqz4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MbFyY0D6LP0PGJVIiL5w8Z7Q8SS4ujhy8/mVfYuKxubKt14q9MPK3Dht7uvQ6phCp cHnocMaBsPGwc/bU/aNcEyTCC8lwRzJUkCaau47w0o5+5H0KnC/8B+s7yIqw699jGm XuIyh0O17TYj87zs9ZKiqQdSpW0O9ekDHDzhTVH4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Shravya Kumbham , Radhey Shyam Pandey , Andrew Lunn , Paolo Abeni , Sasha Levin Subject: [PATCH 5.15 053/102] net: emaclite: Dont advertise 1000BASE-T and do auto negotiation Date: Mon, 16 May 2022 21:36:27 +0200 Message-Id: <20220516193625.519005771@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220516193623.989270214@linuxfoundation.org> References: <20220516193623.989270214@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Shravya Kumbham [ Upstream commit b800528b97d0adc3a5ba42d78a8b0d3f07a31f44 ] In xemaclite_open() function we are setting the max speed of emaclite to 100Mb using phy_set_max_speed() function so, there is no need to write the advertising registers to stop giga-bit speed and the phy_start() function starts the auto-negotiation so, there is no need to handle it separately using advertising registers. Remove the phy_read and phy_write of advertising registers in xemaclite_open() function. Signed-off-by: Shravya Kumbham Signed-off-by: Radhey Shyam Pandey Reviewed-by: Andrew Lunn Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/ethernet/xilinx/xilinx_emaclite.c | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c index 642472de5a08..97c1d1ecba34 100644 --- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c +++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c @@ -934,8 +934,6 @@ static int xemaclite_open(struct net_device *dev) xemaclite_disable_interrupts(lp); if (lp->phy_node) { - u32 bmcr; - lp->phy_dev = of_phy_connect(lp->ndev, lp->phy_node, xemaclite_adjust_link, 0, PHY_INTERFACE_MODE_MII); @@ -946,19 +944,6 @@ static int xemaclite_open(struct net_device *dev) /* EmacLite doesn't support giga-bit speeds */ phy_set_max_speed(lp->phy_dev, SPEED_100); - - /* Don't advertise 1000BASE-T Full/Half duplex speeds */ - phy_write(lp->phy_dev, MII_CTRL1000, 0); - - /* Advertise only 10 and 100mbps full/half duplex speeds */ - phy_write(lp->phy_dev, MII_ADVERTISE, ADVERTISE_ALL | - ADVERTISE_CSMA); - - /* Restart auto negotiation */ - bmcr = phy_read(lp->phy_dev, MII_BMCR); - bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART); - phy_write(lp->phy_dev, MII_BMCR, bmcr); - phy_start(lp->phy_dev); }