From patchwork Wed Aug 2 06:06:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Zhu X-Patchwork-Id: 1815799 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4RG2fH2b6mz1ybS for ; Wed, 2 Aug 2023 16:49:59 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232658AbjHBGty (ORCPT ); Wed, 2 Aug 2023 02:49:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41650 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232491AbjHBGt1 (ORCPT ); Wed, 2 Aug 2023 02:49:27 -0400 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C14130C3; Tue, 1 Aug 2023 23:48:59 -0700 (PDT) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 66A42200EA5; Wed, 2 Aug 2023 08:41:09 +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 39E95200E91; Wed, 2 Aug 2023 08:41:09 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id A560A1820F56; Wed, 2 Aug 2023 14:41:07 +0800 (+08) From: Richard Zhu To: l.stach@pengutronix.de, shawnguo@kernel.org, lpieralisi@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org 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 0/9] Add legacy i.MX PCIe EP mode supports Date: Wed, 2 Aug 2023 14:06:42 +0800 Message-Id: <1690956412-2439-1-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=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE, URIBL_BLOCKED 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: devicetree@vger.kernel.org Add legacy 32bit i.MX PCIe EP mode support The PCI controller contained in i.MX6/7 legacy SOCs is one dual mode PCIe controller, and can work either as RC or EP. This series add i.MX6/7 PCIe EP mode supports. And had been verified on i.MX6 sabresd and i.MX7 SDB boards. In the verification, one board PCIe is used as RC, the other one is used as EP. Use the cross TX/RX differential cable connect the two PCIe ports of these two boards. +-----------+ +------------+ | PCIe TX |<-------------->|PCIe RX | | | | | | Board | | Board | | | | | | PCIe RX |<-------------->|PCIe TX | +-----------+ +------------+ [PATCH 1/9] dt-bindings: PCI: fsl,imx6q: Add i.MX6Q and i.MX6QP PCIe [PATCH 2/9] dt-bindings: PCI: fsl,imx6q: Add i.MX6SX PCIe EP [PATCH 3/9] dt-bindings: PCI: fsl,imx6q: Add i.MX7D PCIe EP [PATCH 4/9] arm: dts: nxp: Add i.MX6QDL and i.MX6QP PCIe EP supports [PATCH 5/9] arm: dts: nxp: Add i.MX6SX PCIe EP support [PATCH 6/9] arm: dts: nxp: Add i.MX7D PCIe EP support [PATCH 7/9] PCI: imx6: Add i.MX6Q and i.MX6QP PCIe EP supports [PATCH 8/9] PCI: imx6: Add i.MX6SX PCIe EP support [PATCH 9/9] PCI: imx6: Add i.MX7D PCIe EP support Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml | 50 +++++++++++++++++++++++++++++++++++++++++---- arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi | 14 +++++++++++++ arch/arm/boot/dts/nxp/imx/imx6qp.dtsi | 4 ++++ arch/arm/boot/dts/nxp/imx/imx6sx.dtsi | 17 +++++++++++++++ arch/arm/boot/dts/nxp/imx/imx7d.dtsi | 27 ++++++++++++++++++++++++ drivers/pci/controller/dwc/pci-imx6.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 6 files changed, 200 insertions(+), 5 deletions(-)