From patchwork Mon Aug 29 08:15:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Zhu X-Patchwork-Id: 1671342 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@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=linux-pci-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 4MGNxB6xpqz1ygm for ; Mon, 29 Aug 2022 18:33:02 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229836AbiH2Ic7 (ORCPT ); Mon, 29 Aug 2022 04:32:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229684AbiH2Icz (ORCPT ); Mon, 29 Aug 2022 04:32:55 -0400 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BDC3A57894; Mon, 29 Aug 2022 01:32:54 -0700 (PDT) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 296FD200FC8; Mon, 29 Aug 2022 10:32:53 +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 E2A3D200FAC; Mon, 29 Aug 2022 10:32:52 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 02341181D0C0; Mon, 29 Aug 2022 16:32:50 +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, vkoul@kernel.org, alexander.stein@ew.tq-group.com, marex@denx.de, richard.leitner@linux.dev Cc: linux-phy@lists.infradead.org, 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: [PATCH v4 0/6] Add iMX8MP PCIe support Date: Mon, 29 Aug 2022 16:15:11 +0800 Message-Id: <1661760917-9558-1-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,T_SCC_BODY_TEXT_LINE 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-pci@vger.kernel.org Based on the 6.0-rc1 of the pci/next branch. This series adds the i.MX8MP PCIe support and tested on i.MX8MP EVK board when one PCIe NVME device is used. - i.MX8MP PCIe has reversed initial PERST bit value refer to i.MX8MQ/i.MX8MM. Add the PHY PERST explicitly for i.MX8MP PCIe PHY. - 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. Main changes v3-->v4: - Regarding Phillip's suggestions, add fix tag into the first commit. - Add Reviewed and Tested tags. Main changes v2-->v3: - Fix the schema checking error in the PHY dt-binding patch. - Inspired by Lucas, the PLL configurations might not required when external OSC is used as PCIe referrence clock. It's true. Remove all the HSIO PLL bit manipulations, and PCIe works fine on i.MX8MP EVK board with one NVME device is used. - Drop the #4 patch of v2, since it had been applied by Rob. Main changes v1-->v2: - It's my fault forget including Vinod, re-send v2 after include Vinod and linux-phy@lists.infradead.org. - List the basements of this patch-set. The branch, codes changes and so on. - Clean up some useless register and bit definitions in #3 patch. Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml | 16 +++++++-- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 53 +++++++++++++++++++++++++++++ arch/arm64/boot/dts/freescale/imx8mp.dtsi | 46 ++++++++++++++++++++++++- drivers/pci/controller/dwc/pci-imx6.c | 17 +++++++++- drivers/phy/freescale/phy-fsl-imx8m-pcie.c | 150 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------- drivers/reset/reset-imx7.c | 1 + 6 files changed, 232 insertions(+), 51 deletions(-) [PATCH v4 1/6] reset: imx7: Fix the iMX8MP PCIe PHY PERST support [PATCH v4 2/6] dt-binding: phy: Add iMX8MP PCIe PHY binding [PATCH v4 3/6] phy: freescale: imx8m-pcie: Add iMX8MP PCIe PHY [PATCH v4 4/6] arm64: dts: imx8mp: Add iMX8MP PCIe support [PATCH v4 5/6] arm64: dts: imx8mp-evk: Add PCIe support [PATCH v4 6/6] PCI: imx6: Add iMX8MP PCIe support