From patchwork Fri Sep 23 06:06:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongxing Zhu X-Patchwork-Id: 12986192 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 7253EC6FA82 for ; Fri, 23 Sep 2022 06:27:57 +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=4R7Dc60qg1r/UeMlHQCiY8koReXB8ydtHzY/orqKGIo=; b=iCpZjZC5nXcdJ7 qd7NSAoSgGU+yOgOipEBlFXeHoW80C2p8z466GD2iUjOC9gjuWwIwTzo0X8YUlLWMM5oF87pLzwDx EclJMTgtr78wKNi2rcsjCXTU8SToMejVKb0b5htMGMC0kJDt0LP8Uxiwr5bCqGgaEd993pS3uk9Jc xUEZtIoLtQZll9VpAAqWuD3ztmXfNIASY5dYTXZlU4CCdGPuTSU4uO4vjxvmw53Fp2odTGrMv+wpa f6h3gU7nQfBiEgsmTootvzU4WeEYt8u/D+JhY06n9G5PIqHQc3gV70TVktens87Sxp4/ofT7HsbeY LmU/JSk1VowcX4AJWYNw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1obc9D-002SGu-4j; Fri, 23 Sep 2022 06:26:51 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1obc8K-002RkQ-OK for linux-arm-kernel@lists.infradead.org; Fri, 23 Sep 2022 06:25:59 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 9CED6215AED; Fri, 23 Sep 2022 08:25:50 +0200 (CEST) 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 5256A200DC1; Fri, 23 Sep 2022 08:25:50 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 575091820F59; Fri, 23 Sep 2022 14:25:48 +0800 (+08) From: Richard Zhu To: l.stach@pengutronix.de, bhelgaas@google.com, robh+dt@kernel.org, lorenzo.pieralisi@arm.com, shawnguo@kernel.org, kishon@ti.com, kw@linux.com, frank.li@nxp.com Cc: hongxing.zhu@nxp.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com Subject: [PATCH v3 0/14] Add iMX PCIe EP mode support Date: Fri, 23 Sep 2022 14:06:46 +0800 Message-Id: <1663913220-9523-1-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-20220922_232556_986623_63D66414 X-CRM114-Status: UNSURE ( 9.14 ) 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 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 EVK, 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 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. Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml | 3 ++ arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 14 ++++++ arch/arm64/boot/dts/freescale/imx8mm.dtsi | 20 +++++++++ arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 13 ++++++ arch/arm64/boot/dts/freescale/imx8mp.dtsi | 19 ++++++++ arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 12 ++++++ arch/arm64/boot/dts/freescale/imx8mq.dtsi | 27 ++++++++++++ drivers/misc/pci_endpoint_test.c | 2 + drivers/pci/controller/dwc/Kconfig | 25 ++++++++++- drivers/pci/controller/dwc/pci-imx6.c | 200 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------- 10 files changed, 316 insertions(+), 19 deletions(-) [PATCH v3 01/14] dt-bindings: imx6q-pcie: Add iMX8MM PCIe EP mode [PATCH v3 02/14] dt-bindings: imx6q-pcie: Add iMX8MQ PCIe EP mode [PATCH v3 03/14] dt-bindings: imx6q-pcie: Add iMX8MP PCIe EP mode [PATCH v3 04/14] PCI: dwc: Kconfig: Add iMX PCIe EP mode support [PATCH v3 05/14] arm64: dts: Add iMX8MM PCIe EP support [PATCH v3 06/14] arm64: dts: Add iMX8MM PCIe EP support on EVK board [PATCH v3 07/14] arm64: dts: Add iMX8MQ PCIe EP support [PATCH v3 08/14] arm64: dts: Add iMX8MQ PCIe EP support on EVK board [PATCH v3 09/14] arm64: dts: Add iMX8MP PCIe EP support [PATCH v3 10/14] arm64: dts: Add iMX8MP PCIe EP support on EVK board [PATCH v3 11/14] misc: pci_endpoint_test: Add iMX8 PCIe EP device [PATCH v3 12/14] PCI: imx6: Add iMX8MM PCIe EP mode [PATCH v3 13/14] PCI: imx6: Add iMX8MQ PCIe EP support [PATCH v3 14/14] PCI: imx6: Add iMX8MP PCIe EP support