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=-9.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 5BB9FC65C20 for ; Mon, 8 Oct 2018 15:25:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 18CAC21508 for ; Mon, 8 Oct 2018 15:25:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="SnVq20FI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 18CAC21508 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727476AbeJHWiJ (ORCPT ); Mon, 8 Oct 2018 18:38:09 -0400 Received: from mail.kernel.org ([198.145.29.99]:56434 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727370AbeJHWiJ (ORCPT ); Mon, 8 Oct 2018 18:38:09 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9A954214FA; Mon, 8 Oct 2018 15:25:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1539012354; bh=TgiMNUxSNZidk2Dus9H/CjBKwzkNjeRYcm0I5u9WH94=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SnVq20FIr7TSPBsGMbwK2ldDG9+jNv125MZrYaeHNkKSXcQc9/ZdRfkdgUlXgN5vx W3HTSY+gm4jHsT+8LJ7XBaB3k/YkAwADMazQYdNtW766NJL237tr1L/OZTQYgp3VfK 8pytA+8nmnIixQRTy39SlfPg7N9Pvdm8uaEGdR9M= From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Christian Lamparter , "David S . Miller" , Sasha Levin Subject: [PATCH AUTOSEL 4.18 28/58] net: emac: fix fixed-link setup for the RTL8363SB switch Date: Mon, 8 Oct 2018 11:24:53 -0400 Message-Id: <20181008152523.70705-28-sashal@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181008152523.70705-1-sashal@kernel.org> References: <20181008152523.70705-1-sashal@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Christian Lamparter [ Upstream commit 08e39982ef64f800fd1f9b9b92968d14d5fafa82 ] On the Netgear WNDAP620, the emac ethernet isn't receiving nor xmitting any frames from/to the RTL8363SB (identifies itself as a RTL8367RB). This is caused by the emac hardware not knowing the forced link parameters for speed, duplex, pause, etc. This begs the question, how this was working on the original driver code, when it was necessary to set the phy_address and phy_map to 0xffffffff. But I guess without access to the old PPC405/440/460 hardware, it's not possible to know. Signed-off-by: Christian Lamparter Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/ibm/emac/core.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c index 354c0982847b..3b398ebdb5e6 100644 --- a/drivers/net/ethernet/ibm/emac/core.c +++ b/drivers/net/ethernet/ibm/emac/core.c @@ -2677,12 +2677,17 @@ static int emac_init_phy(struct emac_instance *dev) if (of_phy_is_fixed_link(np)) { int res = emac_dt_mdio_probe(dev); - if (!res) { - res = of_phy_register_fixed_link(np); - if (res) - mdiobus_unregister(dev->mii_bus); + if (res) + return res; + + res = of_phy_register_fixed_link(np); + dev->phy_dev = of_phy_find_device(np); + if (res || !dev->phy_dev) { + mdiobus_unregister(dev->mii_bus); + return res ? res : -EINVAL; } - return res; + emac_adjust_link(dev->ndev); + put_device(&dev->phy_dev->mdio.dev); } return 0; } -- 2.17.1