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[2620:137:e000::1:20]) by mx.google.com with ESMTP id h13-20020a17090791cd00b007aed5ffeffbsi11411049ejz.78.2023.01.29.19.59.25; Sun, 29 Jan 2023 19:59:50 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nxp.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235343AbjA3D5g (ORCPT + 99 others); Sun, 29 Jan 2023 22:57:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47226 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235277AbjA3D5e (ORCPT ); Sun, 29 Jan 2023 22:57:34 -0500 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BF9C91A95D; Sun, 29 Jan 2023 19:57:32 -0800 (PST) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 5178920002F; Mon, 30 Jan 2023 04:57:31 +0100 (CET) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id E9C6C201E02; Mon, 30 Jan 2023 04:57:30 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 2776C183ABF1; Mon, 30 Jan 2023 11:57:29 +0800 (+08) From: Richard Zhu To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, l.stach@pengutronix.de, shawnguo@kernel.org, lorenzo.pieralisi@arm.com, peng.fan@nxp.com, marex@denx.de, marcel.ziswiler@toradex.com, tharvey@gateworks.com, frank.li@nxp.com Cc: hongxing.zhu@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com Subject: [PATCH DTS v7 0/5] Add i.MX PCIe EP mode support Date: Mon, 30 Jan 2023 11:32:14 +0800 Message-Id: <1675049539-14976-1-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1756418477161812192?= X-GMAIL-MSGID: =?utf-8?q?1756418477161812192?= i.MX PCIe controller is one dual mode PCIe controller, and can work either as RC or EP. This series add the i.MX PCIe EP mode support. And had been verified on i.MX8MQ, i.MX8MM EVK and i.MX8MP EVK boards. In the verification, one EVK board used as RC, the other one used as EP. Use the cross TX/RX differential cable connect the two PCIe ports of these two EVK boards. +-----------+ +------------+ | PCIe TX |<-------------->|PCIe RX | | | | | |EVK Board | |EVK Board | | | | | | PCIe RX |<-------------->|PCIe TX | +-----------+ +------------+ Main changes from v6 -> v7: Refer to Krzysztof's review comments. - Drop the 2/4/6 patches of v6 series. - Based on for-next branch of Shawn's git, and the fsl,imx6q-pcie.yaml changes in the v4. Separate the DT-schema for i.MX PCIe Endpoint modes, and pass the dt_binding_check and dtbs_check. Main changes from v5 -> v6: - The v6 only contains the DTS changes, since PCIe part had been picked up. - Based on Shawn's for-next branch, and the following two patch-sets [1] and [2] issued by Marek, rebase the DTS changes. [1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20230116101649.46459-1-marex@denx.de/ [2] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20230116101422.46257-1-marex@denx.de/ Main changes from v4 -> v5: - Rebase to v6.2-rc1. - Follow the clock definitions on i.MX8MP platform refer to the following commit. https://patchwork.kernel.org/project/linux-arm-kernel/patch/20221216195932.3228998-1-l.stach@pengutronix.de/ Main changes from v3 -> v4: - Add the Rob's ACK in the dt-binding patch. - Use "i.MX" to keep spell consistent. - Squash generic endpoint infrastructure changes of "[12/14] PCI: imx6: Add iMX8MM PCIe EP mode" into Kconfig changes. NOTE: The following commits should be cherried back firstly, when apply this series. Shawn's tree (git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git) d50650500064 arm64: dts: imx8mp-evk: Add PCIe support 9e65987b9584 arm64: dts: imx8mp: Add iMX8MP PCIe support 5506018d3dec soc: imx: imx8mp-blk-ctrl: handle PCIe PHY resets Philipp's tree (git://git.pengutronix.de/git/pza/linux) 051d9eb40388 reset: imx7: Fix the iMX8MP PCIe PHY PERST support The PHY changes: https://patchwork.kernel.org/project/linux-pci/cover/1664174463-13721-1-git-send-email-hongxing.zhu@nxp.com/ Main changes from v2 -> v3: - Add the i.MX8MP PCIe EP support, and verified on i.MX8MP EVK board. - Rebase to latest pci/next branch(tag: v6.0-rc1 plus some PCIe changes). Main changes from v1 -> v2: - Add Rob's ACK into first two commits. - Rebase to the tag: pci-v5.20-changes of the pci/next branch. cumentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml | 317 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ MAINTAINERS | 1 + arch/arm64/boot/dts/freescale/imx8mm.dtsi | 24 +++++++ arch/arm64/boot/dts/freescale/imx8mp.dtsi | 26 +++++++ arch/arm64/boot/dts/freescale/imx8mq.dtsi | 32 +++++++++ 5 files changed, 400 insertions(+) [PATCH v7 1/5] dt-bindings: imx6q-pcie: Prepare to separate the [PATCH v7 2/5] dt-bindings: imx6q-pcie: Add schema for i.MX8M PCIe [PATCH v7 3/5] arm64: dts: Add i.MX8MM PCIe EP support [PATCH v7 4/5] arm64: dts: Add i.MX8MQ PCIe EP support [PATCH v7 5/5] arm64: dts: Add i.MX8MP PCIe EP support