From patchwork Tue Oct 27 14:49:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ivan Mikhaylov X-Patchwork-Id: 11860663 X-Patchwork-Delegate: kuba@kernel.org 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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,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 78A22C388F9 for ; Tue, 27 Oct 2020 14:45:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 073EB206E5 for ; Tue, 27 Oct 2020 14:45:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=yadro.com header.i=@yadro.com header.b="a4uiTkwL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763872AbgJ0OpV (ORCPT ); Tue, 27 Oct 2020 10:45:21 -0400 Received: from mta-02.yadro.com ([89.207.88.252]:43624 "EHLO mta-01.yadro.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1763858AbgJ0OpL (ORCPT ); Tue, 27 Oct 2020 10:45:11 -0400 Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id B934941314; Tue, 27 Oct 2020 14:45:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received; s=mta-01; t= 1603809907; x=1605624308; bh=8r8fT1hmR7P3/lh5cS89Huk+jVa85mnmOJ8 qG/YnPok=; b=a4uiTkwLIIeBjtKuCUc/kpDOYHIo+2tOeQ7MsO9UP3EZ2HddNBD t4uiqwJ0ehNOrZoIORAmr9LKj3/0/ZAB8PhCaF0ubb+aPqm4AcGanXBd8/1UZfqT MGNCYgOuqqgxi6UFv7szkHL66KNHNe5b+hiKRV5GSxs3oik9VA12PgI8= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xPBY6Y39MVs8; Tue, 27 Oct 2020 17:45:07 +0300 (MSK) Received: from T-EXCH-04.corp.yadro.com (t-exch-04.corp.yadro.com [172.17.100.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id C72F5412DF; Tue, 27 Oct 2020 17:45:07 +0300 (MSK) Received: from localhost.dev.yadro.com (10.199.0.215) by T-EXCH-04.corp.yadro.com (172.17.100.104) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Tue, 27 Oct 2020 17:45:03 +0300 From: Ivan Mikhaylov To: "David S . Miller" , Jakub Kicinski , Po-Yu Chuang CC: Ivan Mikhaylov , Joel Stanley , Benjamin Herrenschmidt , , , Subject: [PATCH v2 2/2] net: ftgmac100: add handling of mdio/phy nodes for ast2400/2500 Date: Tue, 27 Oct 2020 17:49:24 +0300 Message-ID: <20201027144924.22183-3-i.mikhaylov@yadro.com> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20201027144924.22183-1-i.mikhaylov@yadro.com> References: <20201027144924.22183-1-i.mikhaylov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.0.215] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-04.corp.yadro.com (172.17.100.104) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org phy-handle can't be handled well for ast2400/2500 which has an embedded MDIO controller. Add ftgmac100_mdio_setup for ast2400/2500 and initialize PHYs from mdio child node with of_mdiobus_register. Signed-off-by: Ivan Mikhaylov --- drivers/net/ethernet/faraday/ftgmac100.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c index ffad79050713..62bafd4b22e1 100644 --- a/drivers/net/ethernet/faraday/ftgmac100.c +++ b/drivers/net/ethernet/faraday/ftgmac100.c @@ -1631,6 +1631,7 @@ static int ftgmac100_setup_mdio(struct net_device *netdev) struct ftgmac100 *priv = netdev_priv(netdev); struct platform_device *pdev = to_platform_device(priv->dev); struct device_node *np = pdev->dev.of_node; + struct device_node *mdio_np; int i, err = 0; u32 reg; @@ -1662,12 +1663,16 @@ static int ftgmac100_setup_mdio(struct net_device *netdev) for (i = 0; i < PHY_MAX_ADDR; i++) priv->mii_bus->irq[i] = PHY_POLL; - err = mdiobus_register(priv->mii_bus); + mdio_np = of_get_child_by_name(np, "mdio"); + + err = of_mdiobus_register(priv->mii_bus, mdio_np); if (err) { dev_err(priv->dev, "Cannot register MDIO bus!\n"); goto err_register_mdiobus; } + of_node_put(mdio_np); + return 0; err_register_mdiobus: @@ -1830,11 +1835,22 @@ static int ftgmac100_probe(struct platform_device *pdev) } else if (np && of_get_property(np, "phy-handle", NULL)) { struct phy_device *phy; + /* Support "mdio"/"phy" child nodes for ast2400/2500 with + * an embedded MDIO controller. Automatically scan the DTS for + * available PHYs and register them. + */ + if (of_device_is_compatible(np, "aspeed,ast2400-mac") || + of_device_is_compatible(np, "aspeed,ast2500-mac")) { + err = ftgmac100_setup_mdio(netdev); + if (err) + goto err_setup_mdio; + } + phy = of_phy_get_and_connect(priv->netdev, np, &ftgmac100_adjust_link); if (!phy) { dev_err(&pdev->dev, "Failed to connect to phy\n"); - goto err_setup_mdio; + goto err_phy_connect; } /* Indicate that we support PAUSE frames (see comment in