From patchwork Mon Mar 7 06:14:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongxing Zhu X-Patchwork-Id: 12771215 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 49962C433F5 for ; Mon, 7 Mar 2022 06:24:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date:Subject:Cc:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=1YQpHit+NksZA3ZLmcqutFLRFOnQi0Jc9fIPNnj7WxY=; b=R/unVWo9AaZ3Mj vtGHWYf9j3NerD9kiV4W3qE8eTc6wKtWVQ3GF+OzmKsAx6jfL0yvVyAgCIDxf8T/+jlqB3yxdCOhX 2yllF5WNbERh5TdomORF+O02U+j/Pbtqf+VCbeN9+2O/XRDnESHzjSJ4p1hFDn11Nu2R1rCFNQUXT oU9CoSYGP/egmayfeDfgimJBwQw1p6LKGNSrgwoLimCvlOX1o7tw69u2ZC362PbT2NbNswqG/Zo7D XjJwuRk6IfRLUhvssjYjXVJY2EmVYTvVfReC0NOgVG/Dr+CnT2P7mCLLBdmH93L9K3WgbwGEFtQEu D5ZTGwBWHTvtXqnRFvvg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nR6mS-00G13s-Dt; Mon, 07 Mar 2022 06:23:40 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nR6mO-00G126-Jh for linux-arm-kernel@lists.infradead.org; Mon, 07 Mar 2022 06:23:38 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id D6D711A003D; Mon, 7 Mar 2022 07:23:32 +0100 (CET) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 8DB391A004C; Mon, 7 Mar 2022 07:23:32 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id C679E183AC96; Mon, 7 Mar 2022 14:23:30 +0800 (+08) From: Richard Zhu To: p.zabel@pengutronix.de, l.stach@pengutronix.de, bhelgaas@google.com, lorenzo.pieralisi@arm.com, robh@kernel.org, shawnguo@kernel.org Cc: devicetree@vger.kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com Subject: [RFC 0/7] Add the iMX8MP PCIe support Date: Mon, 7 Mar 2022 14:14:29 +0800 Message-Id: <1646633676-23535-1-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220306_222336_833595_298A0809 X-CRM114-Status: UNSURE ( 7.21 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Based on the i.MX8MP GPC and blk-ctrl patch-set [1] issued by Lucas. This series patches add the i.MX8MP PCIe support. - i.MX8MP PCIe PHY has two resets refer to the i.MX8MM PCIe PHY. Add one more PHY reset for i.MX8MP PCIe PHY accordingly. - Add the i.MX8MP PCIe PHY support in the i.MX8M PCIe PHY driver. And share as much as possible codes with i.MX8MM PCIe PHY. - Add the i.MX8MP PCIe support in binding document, DTS files, and PCIe driver. Tested on the i.MX8MM EVK and i.MX8MP EVK boards, PCIe works fine. [1]:https://patchwork.kernel.org/project/linux-arm-kernel/cover/20220228201731.3330192-1-l.stach@pengutronix.de/ Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml | 1 + Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml | 4 +- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 55 ++++++++++++++++++ arch/arm64/boot/dts/freescale/imx8mp.dtsi | 46 ++++++++++++++- drivers/pci/controller/dwc/pci-imx6.c | 20 ++++++- drivers/phy/freescale/phy-fsl-imx8m-pcie.c | 249 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------- drivers/reset/reset-imx7.c | 1 + [RFC 1/7] reset: imx7: Add the iMX8MP PCIe PHY PERST support [RFC 2/7] dt-binding: phy: Add iMX8MP PCIe PHY binding [RFC 3/7] phy: freescale: imx8m-pcie: Add iMX8MP PCIe PHY support [RFC 4/7] dt-bindings: imx6q-pcie: Add iMX8MP PCIe compatible string [RFC 5/7] arm64: dts: imx8mp: add the iMX8MP PCIe support [RFC 6/7] arm64: dts: imx8mp-evk: Add PCIe support [RFC 7/7] PCI: imx6: Add the iMX8MP PCIe support