From patchwork Tue Jan 31 09:55:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 13122743 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5F688C6379F for ; Tue, 31 Jan 2023 09:55:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232298AbjAaJzy (ORCPT ); Tue, 31 Jan 2023 04:55:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56328 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231858AbjAaJzv (ORCPT ); Tue, 31 Jan 2023 04:55:51 -0500 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id F2A8846715; Tue, 31 Jan 2023 01:55:48 -0800 (PST) X-IronPort-AV: E=Sophos;i="5.97,259,1669042800"; d="scan'208";a="147983400" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 31 Jan 2023 18:55:48 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 1D8FB4001B72; Tue, 31 Jan 2023 18:55:48 +0900 (JST) From: Yoshihiro Shimoda To: lpieralisi@kernel.org, robh+dt@kernel.org, kw@linux.com, bhelgaas@google.com, jingoohan1@gmail.com, gustavo.pimentel@synopsys.com Cc: Sergey.Semin@baikalelectronics.ru, marek.vasut+renesas@gmail.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda Subject: [PATCH v8 0/6] PCI: rcar-gen4: Add R-Car Gen4 PCIe support Date: Tue, 31 Jan 2023 18:55:37 +0900 Message-Id: <20230131095543.1831875-1-yoshihiro.shimoda.uh@renesas.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add R-Car S4-8 (R-Car Gen4) PCIe Host and Endpoint support. To support them, modify PCIe DesignWare common codes. Changes from v7: https://lore.kernel.org/all/20221121124400.1282768-1-yoshihiro.shimoda.uh@renesas.com/ - Based on next-20230131. - Update Copyright year of new files. - Add a new capability flag (DW_PCIE_CAP_EDMA_UNROLL) for finding eDMA on R-Car S4-8. - Remove some PCIe configurations like L1 substates from pcie-rcar-gen4-host.c. - Change timing of reset_control for suitable this hardware initialization. - Add gpio reset handling for host mode. - Capitalize the first charactors on each printk message. Changes from v6: https://lore.kernel.org/all/20220922080647.3489791-1-yoshihiro.shimoda.uh@renesas.com/ - Based on next-20221116. -- And based on the following patches: [PATCH v7 00/20] PCI: dwc: Add generic resources and Baikal-T1 support https://lore.kernel.org/linux-pci/20221113191301.5526-1-Sergey.Semin@baikalelectronics.ru/ [PATCH v6 00/24] dmaengine: dw-edma: Add RP/EP local DMA controllers support https://lore.kernel.org/linux-pci/20221107210438.1515-1-Sergey.Semin@baikalelectronics.ru/ - Update dt-bindings docs for the latest based code. - Add support for triggering legacy IRQs in the patch [06/10] (new). - Add .no_msix flag into the patch [07/10]. - Merge .ep_pre_init() support into the patch [08/10]. - Add .reserved_bar for BAR5 instead in the patch [08/10]. - Change SPDX-License-Identifier from "GPL-2.0" to "GPL-2.0-only". Yoshihiro Shimoda (6): PCI: Add PCI_EXP_LNKCAP_MLW macros PCI: designware-ep: Expose dw_pcie_ep_exit() to module PCI: dwc: Add support for triggering legacy IRQs PCI: rcar-gen4: Add R-Car Gen4 PCIe Host support PCI: rcar-gen4-ep: Add R-Car Gen4 PCIe Endpoint support MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4 MAINTAINERS | 1 + drivers/pci/controller/dwc/Kconfig | 18 ++ drivers/pci/controller/dwc/Makefile | 4 + .../pci/controller/dwc/pcie-designware-ep.c | 70 ++++++- .../pci/controller/dwc/pcie-designware-host.c | 3 + drivers/pci/controller/dwc/pcie-designware.c | 33 +++- drivers/pci/controller/dwc/pcie-designware.h | 19 +- .../pci/controller/dwc/pcie-rcar-gen4-ep.c | 185 ++++++++++++++++++ .../pci/controller/dwc/pcie-rcar-gen4-host.c | 165 ++++++++++++++++ drivers/pci/controller/dwc/pcie-rcar-gen4.c | 166 ++++++++++++++++ drivers/pci/controller/dwc/pcie-rcar-gen4.h | 63 ++++++ include/uapi/linux/pci_regs.h | 6 + 12 files changed, 714 insertions(+), 19 deletions(-) create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4-ep.c create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4-host.c create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4.c create mode 100644 drivers/pci/controller/dwc/pcie-rcar-gen4.h