From patchwork Fri Jul 1 08:54:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 12903000 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 9FE7FCCA482 for ; Fri, 1 Jul 2022 08:55:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235459AbiGAIzF (ORCPT ); Fri, 1 Jul 2022 04:55:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37440 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234901AbiGAIzB (ORCPT ); Fri, 1 Jul 2022 04:55:01 -0400 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id D5D841929A; Fri, 1 Jul 2022 01:54:59 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.92,236,1650898800"; d="scan'208";a="124761343" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 01 Jul 2022 17:54:58 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id B4CD543E0092; Fri, 1 Jul 2022 17:54:58 +0900 (JST) From: Yoshihiro Shimoda To: lpieralisi@kernel.org, robh+dt@kernel.org, kw@linux.com, bhelgaas@google.com, krzk+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com Cc: marek.vasut+renesas@gmail.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda Subject: [PATCH v3 00/13] treewide: PCI: renesas: Add R-Car Gen4 PCIe support Date: Fri, 1 Jul 2022 17:54:07 +0900 Message-Id: <20220701085420.870306-1-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 v2: - Remove some unneeded functions in patch [09/13]. - Fix error messages in patch [09/13]. - Rebase implementation of patch [10/13] on patch [09/13]. https://lore.kernel.org/all/20220627122417.809615-1-yoshihiro.shimoda.uh@renesas.com/ Changes from v1: - Fix a lot of warning/errors by 'make DT_CHECKER_FLAGS=-m dt_binding_check'. - Add PCI_EXP_LNKCAP_MLW macros into pci_regs.h - Remove "extern" in pcie-rcar-gen4.h. - Add ep_pre_init() into dw_pcie_ep_ops for this controller. - Add a new flag "reset_all_bars" into dw_pcie_ep. If this way is acceptable, I'll make patches for other endpoint controllers to simplify. - Move timing of getting num-lanes property for {ep_pre,host}_init(). - Remove some platform_get_resource(). - Remove "struct rcar_gen4_pcie_ep". - Allow a kernel module for both host and ep of this controller. - Minor fixes for checkpatch.pl. https://lore.kernel.org/all/20220613115712.2831386-1-yoshihiro.shimoda.uh@renesas.com/ Yoshihiro Shimoda (13): PCI: Add PCI_EXP_LNKCAP_MLW macros PCI: controller: dwc: Expose dw_pcie_ep_exit() to module PCI: dwc: Add ep_pre_init() callback to dw_pcie_ep_ops PCI: dwc: Add reset_all_bars flag PCI: dwc: endpoint: Read num-lanes property before ep_pre_init() PCI: dwc: host: Read num-lanes property before host_init() dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint PCI: renesas: Add R-Car Gen4 PCIe Host support PCI: renesas: Add R-Car Gen4 PCIe Endpoint support MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4 arm64: dts: renesas: r8a779f0: Add PCIe Host and Endpoint nodes arm64: dts: renesas: r8a779f0: spider: Enable PCIe Host ch0 .../bindings/pci/rcar-gen4-pci-ep.yaml | 99 +++++++++ .../bindings/pci/rcar-gen4-pci-host.yaml | 97 +++++++++ MAINTAINERS | 1 + .../boot/dts/renesas/r8a779f0-spider-cpu.dtsi | 39 ++++ arch/arm64/boot/dts/renesas/r8a779f0.dtsi | 118 +++++++++++ drivers/pci/controller/dwc/Kconfig | 18 ++ drivers/pci/controller/dwc/Makefile | 4 + .../pci/controller/dwc/pcie-designware-ep.c | 16 ++ .../pci/controller/dwc/pcie-designware-host.c | 2 + drivers/pci/controller/dwc/pcie-designware.c | 1 - drivers/pci/controller/dwc/pcie-designware.h | 2 + .../pci/controller/dwc/pcie-rcar-gen4-ep.c | 182 ++++++++++++++++ .../pci/controller/dwc/pcie-rcar-gen4-host.c | 195 ++++++++++++++++++ drivers/pci/controller/dwc/pcie-rcar-gen4.c | 178 ++++++++++++++++ drivers/pci/controller/dwc/pcie-rcar-gen4.h | 61 ++++++ include/uapi/linux/pci_regs.h | 7 + 16 files changed, 1019 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/pci/rcar-gen4-pci-ep.yaml create mode 100644 Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml 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