From patchwork Fri Jul 22 11:07:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 12926349 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 DBE18CCA48A for ; Fri, 22 Jul 2022 11:08:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234298AbiGVLIA (ORCPT ); Fri, 22 Jul 2022 07:08:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44108 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233909AbiGVLH7 (ORCPT ); Fri, 22 Jul 2022 07:07:59 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9EFAF76E88; Fri, 22 Jul 2022 04:07:57 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.93,185,1654527600"; d="scan'208";a="128784518" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 22 Jul 2022 20:07:56 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id B992341FF8A7; Fri, 22 Jul 2022 20:07:56 +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 v4 00/12] treewide: PCI: renesas: Add R-Car Gen4 PCIe support Date: Fri, 22 Jul 2022 20:07:32 +0900 Message-Id: <20220722110744.2274466-1-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-renesas-soc@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 v3: - Rebased on next-20220721. -- And reverted the following patch. ef685262346b PCI: designware-ep: Allow pcie_ep_set_bar change inbound map address -- And based on the following patches: [PATCH RESEND v4 00/15] PCI: dwc: Add hw version and dma-ranges support https://lore.kernel.org/linux-pci/20220624143947.8991-1-Sergey.Semin@baikalelectronics.ru/ [PATCH v3 00/17] PCI: dwc: Add generic resources and Baikal-T1 support https://lore.kernel.org/linux-pci/20220610085706.15741-1-Sergey.Semin@baikalelectronics.ru/ [PATCH v3 00/24] dmaengine: dw-edma: Add RP/EP local DMA controllers support https://lore.kernel.org/all/20220610091459.17612-1-Sergey.Semin@baikalelectronics.ru/ [PATCH 2/3] arm64: dts: renesas: r8a779f0: Add SDHI0 support https://lore.kernel.org/all/20220711134656.277730-3-wsa+renesas@sang-engineering.com/ [PATCH 3/3] arm64: dts: renesas: spider-cpu: enable eMMC0 https://lore.kernel.org/all/20220711134656.277730-4-wsa+renesas@sang-engineering.com/ - Patches' order is changed. - Add Reviewed-by in patch [01/12] and [01/12]. - Modify pcie-designware.c to detect the eDMA in a new patch [07/12]. https://lore.kernel.org/all/20220701085420.870306-1-yoshihiro.shimoda.uh@renesas.com/ 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 (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