From patchwork Fri Feb 15 10:10:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Manoil X-Patchwork-Id: 10814453 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F31556C2 for ; Fri, 15 Feb 2019 10:11:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F04662EA4D for ; Fri, 15 Feb 2019 10:11:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E43C02EA62; Fri, 15 Feb 2019 10:11:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 862D32EA4D for ; Fri, 15 Feb 2019 10:11:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=JZfIdQi46noiBgtQFeGOMc0jJ8hnZ3RLRBIHk0sU7QU=; b=jyuYgtB+CM9Nnz6alzVZb6EsQa zy3sh0EShk371OU8yNalnUqJJWQbyCW9dFNqISBRNM3porasKUeoNEmmEavcLpW/0qS7HxIWC658H mpKubpFnWyfOb+PfrivvCKakBXbjO1fVzreeDw8NO/PXTgCat6uq2AuNHWGeLrRd7kCDEJz3YC0JT YQDDkXPV9sFtqpMsCN+cUVt4sGy56bMJDfBPeIRJeyWujNtYOelZ/wYUXkVJDkuZRIZbigHyUbkxu 8mAl0BDtSDQQT8GV69GWPcZpCd/+9jzRuH7OMGbx3VdCmxNiaeJ71YVycNOB5vprLP0wxngOR5bMa PrTUr/hg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1guaSS-0006Xw-Lk; Fri, 15 Feb 2019 10:11:00 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1guaRw-0005u3-6c for linux-arm-kernel@lists.infradead.org; Fri, 15 Feb 2019 10:10:30 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 877A71A0056; Fri, 15 Feb 2019 11:10:16 +0100 (CET) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 78EE41A00C2; Fri, 15 Feb 2019 11:10:16 +0100 (CET) Received: from fsr-ub1664-016.ea.freescale.net (fsr-ub1664-016.ea.freescale.net [10.171.71.216]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 13DDC205EC; Fri, 15 Feb 2019 11:10:16 +0100 (CET) From: Claudiu Manoil To: Shawn Guo , Li Yang , "David S . Miller" Subject: [PATCH net-next v2 1/3] arm64: dts: fsl: ls1028a: Add PCI IERC node and ENETC endpoints Date: Fri, 15 Feb 2019 12:10:12 +0200 Message-Id: <1550225414-12125-2-git-send-email-claudiu.manoil@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1550225414-12125-1-git-send-email-claudiu.manoil@nxp.com> References: <1550225414-12125-1-git-send-email-claudiu.manoil@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190215_021028_530855_467F4FB9 X-CRM114-Status: UNSURE ( 9.82 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, alexandru.marginean@nxp.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The LS1028A SoC features a PCI Integrated Endpoint Root Complex (IERC) defining several integrated PCI devices, including the ENETC ethernet controller integrated endpoints (IEPs). The IERC implements ECAM (Enhanced Configuration Access Mechanism) to provide access to the PCIe config space of the IEPs. This means the the IEPs (including ENETC) do not support the standard PCIe BARs, instead the Enhanced Allocation (EA) capability structures in the ECAM space are used to fix the base addresses in the system, and the PCI subsystem uses these structures for device enumeration and discovery. The "ranges" entries contain basic information from these EA capabily structures required by the kernel for device enumeration. The current patch also enables the first 2 ENETC PFs (Physiscal Functions) and the associated VFs (Virtual Functions), 2 VFs for each PF. Each of these ENETC PFs has an external ethernet port on the LS1028A SoC. Signed-off-by: Alex Marginean Signed-off-by: Claudiu Manoil --- v2 - none arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 33 ++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi index a8cf92a..7f5a8e6 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi @@ -335,5 +335,38 @@ , , , ; }; + + pcie@1f0000000 { /* Integrated Endpoint Root Complex */ + compatible = "pci-host-ecam-generic"; + reg = <0x01 0xf0000000 0x0 0x100000>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + msi-parent = <&its>; + device_type = "pci"; + bus-range = <0x0 0x0>; + dma-coherent; + msi-map = <0 &its 0x17 0xe>; + iommu-map = <0 &smmu 0x17 0xe>; + /* PF0-6 BAR0 - non-prefetchable memory */ + ranges = <0x82000000 0x0 0x00000000 0x1 0xf8000000 0x0 0x160000 + /* PF0-6 BAR2 - prefetchable memory */ + 0xc2000000 0x0 0x00000000 0x1 0xf8160000 0x0 0x070000 + /* PF0: VF0-1 BAR0 - non-prefetchable memory */ + 0x82000000 0x0 0x00000000 0x1 0xf81d0000 0x0 0x020000 + /* PF0: VF0-1 BAR2 - prefetchable memory */ + 0xc2000000 0x0 0x00000000 0x1 0xf81f0000 0x0 0x020000 + /* PF1: VF0-1 BAR0 - non-prefetchable memory */ + 0x82000000 0x0 0x00000000 0x1 0xf8210000 0x0 0x020000 + /* PF1: VF0-1 BAR2 - prefetchable memory */ + 0xc2000000 0x0 0x00000000 0x1 0xf8230000 0x0 0x020000>; + + enetc_port0: pci@0,0 { + reg = <0x000000 0 0 0 0>; + }; + enetc_port1: pci@0,1 { + reg = <0x000100 0 0 0 0>; + }; + }; }; }; From patchwork Fri Feb 15 10:10:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Manoil X-Patchwork-Id: 10814447 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 480481575 for ; Fri, 15 Feb 2019 10:10:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 44A3E2E6A7 for ; Fri, 15 Feb 2019 10:10:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 38E062E99A; Fri, 15 Feb 2019 10:10:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BFE102E6A7 for ; Fri, 15 Feb 2019 10:10:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=E17WW5UOYTJXAEnTmFF4PBiNSANXTOnPB5wQUN8gL9E=; b=oDQlXL+qUHGWffi+4RQcmaSke5 PuUONOyAhe8f+VHWsOeKDfKL+Og3+Cep8SnKxxZNWjX+M+zdPz0I764H6w03FZCxVhqB8QvWjg72+ k5Kiwwj5J34IrY3KTHe4T/DblNMA+XTP19pGDwZr95XtDxBH/m0pp8PLGxk5Px4XvNrlkI9MEVZSW 53O45V44X8yXTNGi0YFj7C0loetNyD1jVjm43wTJU+HnOJoqOfmHsBCwkehpEk9P+u/uaFwdqR1rp eNk6R9rjGGratlgDVoCmcWSCc5EoOJlkB+Cj/c3/xeXcqXMrUJY8jv+u/Kiae0WeP4PvJu9ad3XUz P7+V03HQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1guaRp-0005m3-69; Fri, 15 Feb 2019 10:10:21 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1guaRm-0005lA-Bg for linux-arm-kernel@lists.infradead.org; Fri, 15 Feb 2019 10:10:19 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 158A12001FE; Fri, 15 Feb 2019 11:10:17 +0100 (CET) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 08AA32000E9; Fri, 15 Feb 2019 11:10:17 +0100 (CET) Received: from fsr-ub1664-016.ea.freescale.net (fsr-ub1664-016.ea.freescale.net [10.171.71.216]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 8A5D4205EC; Fri, 15 Feb 2019 11:10:16 +0100 (CET) From: Claudiu Manoil To: Shawn Guo , Li Yang , "David S . Miller" Subject: [PATCH net-next v2 2/3] arm64: dts: fsl: ls1028a-rdb: Add ENETC external eth ports for the LS1028A RDB board Date: Fri, 15 Feb 2019 12:10:13 +0200 Message-Id: <1550225414-12125-3-git-send-email-claudiu.manoil@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1550225414-12125-1-git-send-email-claudiu.manoil@nxp.com> References: <1550225414-12125-1-git-send-email-claudiu.manoil@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190215_021018_545017_24E096F8 X-CRM114-Status: UNSURE ( 7.64 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, alexandru.marginean@nxp.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The LS1028A RDB board features an Atheros PHY connected over SGMII to the ENETC PF0 (or Port0). ENETC Port1 (PF1) has no external connection on this board, so it can be disabled for now. Signed-off-by: Alex Marginean Signed-off-by: Claudiu Manoil --- v2 - added a mdio node as parent for the phy node arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts index fdeb417..f86b054 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts @@ -71,3 +71,20 @@ &duart1 { status = "okay"; }; + +&enetc_port0 { + phy-handle = <&sgmii_phy0>; + phy-connection-type = "sgmii"; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + sgmii_phy0: ethernet-phy@2 { + reg = <0x2>; + }; + }; +}; + +&enetc_port1 { + status = "disabled"; +}; From patchwork Fri Feb 15 10:10:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Manoil X-Patchwork-Id: 10814451 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4AFAB1575 for ; Fri, 15 Feb 2019 10:10:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 48C362E6A7 for ; Fri, 15 Feb 2019 10:10:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3D2D12EA4D; Fri, 15 Feb 2019 10:10:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7BF612E6D0 for ; Fri, 15 Feb 2019 10:10:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=8lb30XYS6fH+4x0BgPnMS/5QZc56A89sQiV3DrWBP9E=; b=r3dVDuCwgWGZyZ3veA/Abx2+zo sqH5t3S8mHn2dS8xYkeRlhnCbQbdZnMihl2rYPAvjQCLxZFO5SHo28ttNhyJ69fVEiEVvuMDYhgtX dAPwFT92l9jfl+ZK2qvHULzuGsbgH1zVHiehTCDybnDmoOMH3uguYdt1byJ9cqidBZKik9nqdxF45 WId4It6aYuX3MrnnhuyTs4zVnejxV/9nNIDMkFPRSA0leg65pflAofBeUgS7xmGzzsZfOMbsNgFCE Y1wTyGTY+hG3dN+oGQc9tBsUItUQLH2F1SUf8l+ZW1vUrWzm/18YjuQF4J5T+zlxPrXasFeuc8PEH WzNoqpzQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1guaS8-0006BV-B5; Fri, 15 Feb 2019 10:10:40 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1guaRm-0005lB-SZ for linux-arm-kernel@lists.infradead.org; Fri, 15 Feb 2019 10:10:21 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 9177F20030E; Fri, 15 Feb 2019 11:10:17 +0100 (CET) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 83ED7200306; Fri, 15 Feb 2019 11:10:17 +0100 (CET) Received: from fsr-ub1664-016.ea.freescale.net (fsr-ub1664-016.ea.freescale.net [10.171.71.216]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 1C670205EC; Fri, 15 Feb 2019 11:10:17 +0100 (CET) From: Claudiu Manoil To: Shawn Guo , Li Yang , "David S . Miller" Subject: [PATCH net-next v2 3/3] enetc: Add ENETC PF level external MDIO support Date: Fri, 15 Feb 2019 12:10:14 +0200 Message-Id: <1550225414-12125-4-git-send-email-claudiu.manoil@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1550225414-12125-1-git-send-email-claudiu.manoil@nxp.com> References: <1550225414-12125-1-git-send-email-claudiu.manoil@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190215_021019_199557_7BB84F7D X-CRM114-Status: GOOD ( 17.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, alexandru.marginean@nxp.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Each ENETC PF has its own MDIO interface, the corresponding MDIO registers are mapped in the ENETC's Port register block. The current patch adds a driver for these PF level MDIO buses, so that each PF can manage directly its own external link. Signed-off-by: Alex Marginean Signed-off-by: Claudiu Manoil --- v2 - used readx_poll_timeout() - added mdio node child to the port node - added code comments, removed redundant err messages, minor code cleanup drivers/net/ethernet/freescale/enetc/Makefile | 3 +- drivers/net/ethernet/freescale/enetc/enetc_mdio.c | 199 ++++++++++++++++++++++ drivers/net/ethernet/freescale/enetc/enetc_pf.c | 12 ++ drivers/net/ethernet/freescale/enetc/enetc_pf.h | 6 + 4 files changed, 219 insertions(+), 1 deletion(-) create mode 100644 drivers/net/ethernet/freescale/enetc/enetc_mdio.c diff --git a/drivers/net/ethernet/freescale/enetc/Makefile b/drivers/net/ethernet/freescale/enetc/Makefile index 6976602..7139e41 100644 --- a/drivers/net/ethernet/freescale/enetc/Makefile +++ b/drivers/net/ethernet/freescale/enetc/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_FSL_ENETC) += fsl-enetc.o -fsl-enetc-$(CONFIG_FSL_ENETC) += enetc.o enetc_cbdr.o enetc_ethtool.o +fsl-enetc-$(CONFIG_FSL_ENETC) += enetc.o enetc_cbdr.o enetc_ethtool.o \ + enetc_mdio.o fsl-enetc-$(CONFIG_PCI_IOV) += enetc_msg.o fsl-enetc-objs := enetc_pf.o $(fsl-enetc-y) diff --git a/drivers/net/ethernet/freescale/enetc/enetc_mdio.c b/drivers/net/ethernet/freescale/enetc/enetc_mdio.c new file mode 100644 index 0000000..f715487 --- /dev/null +++ b/drivers/net/ethernet/freescale/enetc/enetc_mdio.c @@ -0,0 +1,199 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* Copyright 2019 NXP */ + +#include +#include +#include +#include + +#include "enetc_pf.h" + +struct enetc_mdio_regs { + u32 mdio_cfg; /* MDIO configuration and status */ + u32 mdio_ctl; /* MDIO control */ + u32 mdio_data; /* MDIO data */ + u32 mdio_addr; /* MDIO address */ +}; + +#define bus_to_enetc_regs(bus) (struct enetc_mdio_regs __iomem *)((bus)->priv) + +#define ENETC_MDIO_REG_OFFSET 0x1c00 +#define ENETC_MDC_DIV 258 + +#define MDIO_CFG_CLKDIV(x) ((((x) >> 1) & 0xff) << 8) +#define MDIO_CFG_BSY BIT(0) +#define MDIO_CFG_RD_ER BIT(1) +#define MDIO_CFG_ENC45 BIT(6) + /* external MDIO only - driven on neg MDC edge */ +#define MDIO_CFG_NEG BIT(23) + +#define MDIO_CTL_DEV_ADDR(x) ((x) & 0x1f) +#define MDIO_CTL_PORT_ADDR(x) (((x) & 0x1f) << 5) +#define MDIO_CTL_READ BIT(15) +#define MDIO_DATA(x) ((x) & 0xffff) + +#define TIMEOUT 1000 +static int enetc_mdio_wait_complete(struct enetc_mdio_regs __iomem *regs) +{ + u32 val; + + return readx_poll_timeout(enetc_rd_reg, ®s->mdio_cfg, val, + !(val & MDIO_CFG_BSY), 10, 10 * TIMEOUT); +} + +static int enetc_mdio_write(struct mii_bus *bus, int phy_id, int regnum, + u16 value) +{ + struct enetc_mdio_regs __iomem *regs = bus_to_enetc_regs(bus); + u32 mdio_ctl, mdio_cfg; + u16 dev_addr; + int ret; + + mdio_cfg = MDIO_CFG_CLKDIV(ENETC_MDC_DIV) | MDIO_CFG_NEG; + if (regnum & MII_ADDR_C45) { + dev_addr = (regnum >> 16) & 0x1f; + mdio_cfg |= MDIO_CFG_ENC45; + } else { + /* clause 22 (ie 1G) */ + dev_addr = regnum & 0x1f; + mdio_cfg &= ~MDIO_CFG_ENC45; + } + + enetc_wr_reg(®s->mdio_cfg, mdio_cfg); + + ret = enetc_mdio_wait_complete(regs); + if (ret) + return ret; + + /* set port and dev addr */ + mdio_ctl = MDIO_CTL_PORT_ADDR(phy_id) | MDIO_CTL_DEV_ADDR(dev_addr); + enetc_wr_reg(®s->mdio_ctl, mdio_ctl); + + /* set the register address */ + if (regnum & MII_ADDR_C45) { + enetc_wr_reg(®s->mdio_addr, regnum & 0xffff); + + ret = enetc_mdio_wait_complete(regs); + if (ret) + return ret; + } + + /* write the value */ + enetc_wr_reg(®s->mdio_data, MDIO_DATA(value)); + + ret = enetc_mdio_wait_complete(regs); + if (ret) + return ret; + + return 0; +} + +static int enetc_mdio_read(struct mii_bus *bus, int phy_id, int regnum) +{ + struct enetc_mdio_regs __iomem *regs = bus_to_enetc_regs(bus); + u32 mdio_ctl, mdio_cfg; + u16 dev_addr, value; + int ret; + + mdio_cfg = MDIO_CFG_CLKDIV(ENETC_MDC_DIV) | MDIO_CFG_NEG; + if (regnum & MII_ADDR_C45) { + dev_addr = (regnum >> 16) & 0x1f; + mdio_cfg |= MDIO_CFG_ENC45; + } else { + dev_addr = regnum & 0x1f; + mdio_cfg &= ~MDIO_CFG_ENC45; + } + + enetc_wr_reg(®s->mdio_cfg, mdio_cfg); + + ret = enetc_mdio_wait_complete(regs); + if (ret) + return ret; + + /* set port and device addr */ + mdio_ctl = MDIO_CTL_PORT_ADDR(phy_id) | MDIO_CTL_DEV_ADDR(dev_addr); + enetc_wr_reg(®s->mdio_ctl, mdio_ctl); + + /* set the register address */ + if (regnum & MII_ADDR_C45) { + enetc_wr_reg(®s->mdio_addr, regnum & 0xffff); + + ret = enetc_mdio_wait_complete(regs); + if (ret) + return ret; + } + + /* initiate the read */ + enetc_wr_reg(®s->mdio_ctl, mdio_ctl | MDIO_CTL_READ); + + ret = enetc_mdio_wait_complete(regs); + if (ret) + return ret; + + /* return all Fs if nothing was there */ + if (enetc_rd_reg(®s->mdio_cfg) & MDIO_CFG_RD_ER) { + dev_err(&bus->dev, + "Error while reading PHY%d reg at %d.%hhu\n", + phy_id, dev_addr, regnum); + return 0xffff; + } + + value = enetc_rd_reg(®s->mdio_data) & 0xffff; + + return value; +} + +int enetc_mdio_probe(struct enetc_pf *pf) +{ + struct device *dev = &pf->si->pdev->dev; + struct enetc_mdio_regs __iomem *regs; + struct device_node *np; + struct mii_bus *bus; + int ret; + + bus = mdiobus_alloc_size(sizeof(regs)); + if (!bus) + return -ENOMEM; + + bus->name = "Freescale ENETC MDIO Bus"; + bus->read = enetc_mdio_read; + bus->write = enetc_mdio_write; + bus->parent = dev; + snprintf(bus->id, MII_BUS_ID_SIZE, "%s", dev_name(dev)); + + /* store the enetc mdio base address for this bus */ + regs = pf->si->hw.port + ENETC_MDIO_REG_OFFSET; + bus->priv = regs; + + np = of_get_child_by_name(dev->of_node, "mdio"); + if (!np) { + dev_err(dev, "MDIO node missing\n"); + ret = -EINVAL; + goto err_registration; + } + + ret = of_mdiobus_register(bus, np); + if (ret) { + of_node_put(np); + dev_err(dev, "cannot register MDIO bus\n"); + goto err_registration; + } + + of_node_put(np); + pf->mdio = bus; + + return 0; + +err_registration: + mdiobus_free(bus); + + return ret; +} + +void enetc_mdio_remove(struct enetc_pf *pf) +{ + if (pf->mdio) { + mdiobus_unregister(pf->mdio); + mdiobus_free(pf->mdio); + } +} diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c index 7d28f5e..15876a6 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c @@ -746,6 +746,7 @@ static void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, static int enetc_of_get_phy(struct enetc_ndev_priv *priv) { + struct enetc_pf *pf = enetc_si_priv(priv->si); struct device_node *np = priv->dev->of_node; int err; @@ -770,12 +771,22 @@ static int enetc_of_get_phy(struct enetc_ndev_priv *priv) priv->phy_node = of_node_get(np); } + if (!of_phy_is_fixed_link(np)) { + err = enetc_mdio_probe(pf); + if (err) { + of_node_put(priv->phy_node); + return err; + } + } + priv->if_mode = of_get_phy_mode(np); if (priv->if_mode < 0) { dev_err(priv->dev, "missing phy type\n"); of_node_put(priv->phy_node); if (of_phy_is_fixed_link(np)) of_phy_deregister_fixed_link(np); + else + enetc_mdio_remove(pf); return -EINVAL; } @@ -898,6 +909,7 @@ static void enetc_pf_remove(struct pci_dev *pdev) unregister_netdev(si->ndev); + enetc_mdio_remove(pf); enetc_of_put_phy(priv); enetc_free_msix(priv); diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.h b/drivers/net/ethernet/freescale/enetc/enetc_pf.h index 2061ae5..10dd1b5 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.h +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.h @@ -42,8 +42,14 @@ struct enetc_pf { char vlan_promisc_simap; /* bitmap of SIs in VLAN promisc mode */ DECLARE_BITMAP(vlan_ht_filter, ENETC_VLAN_HT_SIZE); DECLARE_BITMAP(active_vlans, VLAN_N_VID); + + struct mii_bus *mdio; /* saved for cleanup */ }; int enetc_msg_psi_init(struct enetc_pf *pf); void enetc_msg_psi_free(struct enetc_pf *pf); void enetc_msg_handle_rxmsg(struct enetc_pf *pf, int mbox_id, u16 *status); + +/* MDIO */ +int enetc_mdio_probe(struct enetc_pf *pf); +void enetc_mdio_remove(struct enetc_pf *pf);