From patchwork Mon Sep 5 07:12:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 12965674 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 1DAD1C6FA86 for ; Mon, 5 Sep 2022 07:19:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237570AbiIEHTP (ORCPT ); Mon, 5 Sep 2022 03:19:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236187AbiIEHSt (ORCPT ); Mon, 5 Sep 2022 03:18:49 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 69E4A4CA3E; Mon, 5 Sep 2022 00:14:00 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.93,290,1654527600"; d="scan'208";a="133728184" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 05 Sep 2022 16:13:08 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id CC4604004461; Mon, 5 Sep 2022 16:13:08 +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 v5 00/12] treewide: PCI: renesas: Add R-Car Gen4 PCIe support Date: Mon, 5 Sep 2022 16:12:45 +0900 Message-Id: <20220905071257.1059436-1-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 v4: https://lore.kernel.org/all/20220722110744.2274466-1-yoshihiro.shimoda.uh@renesas.com/ - Rebased on next-20220901. -- And based on the following patches: [PATCH v5 00/20] PCI: dwc: Add generic resources and Baikal-T1 support https://lore.kernel.org/linux-pci/20220822184701.25246-1-Sergey.Semin@baikalelectronics.ru/ [PATCH RESEND v5 00/24] dmaengine: dw-edma: Add RP/EP local DMA controllers support https://lore.kernel.org/dmaengine/20220822185332.26149-1-Sergey.Semin@baikalelectronics.ru/ - Notes that snps,dw-pcie-common.yaml modification seems under construction so that dt-bindings of R-Car Gen4 is based on next-20220901. Yoshihiro Shimoda (12): dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint 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: Avoid reading a register to detect whether eDMA exists 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 | 122 +++++++++++ drivers/pci/controller/dwc/Kconfig | 18 ++ drivers/pci/controller/dwc/Makefile | 4 + .../pci/controller/dwc/pcie-designware-ep.c | 14 ++ drivers/pci/controller/dwc/pcie-designware.c | 4 +- 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 | 181 ++++++++++++++++ drivers/pci/controller/dwc/pcie-rcar-gen4.h | 63 ++++++ include/uapi/linux/pci_regs.h | 7 + 15 files changed, 1026 insertions(+), 2 deletions(-) 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