From patchwork Wed Mar 8 08:23:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 13165379 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 71921C7618B for ; Wed, 8 Mar 2023 08:25:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229801AbjCHIZI (ORCPT ); Wed, 8 Mar 2023 03:25:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230202AbjCHIYr (ORCPT ); Wed, 8 Mar 2023 03:24:47 -0500 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id A1BC8B1A7C; Wed, 8 Mar 2023 00:24:25 -0800 (PST) X-IronPort-AV: E=Sophos;i="5.98,243,1673881200"; d="scan'208";a="155237822" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 08 Mar 2023 17:24:24 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id A53B84011401; Wed, 8 Mar 2023 17:24:24 +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 v10 00/12] PCI: rcar-gen4: Add R-Car Gen4 PCIe support Date: Wed, 8 Mar 2023 17:23:40 +0900 Message-Id: <20230308082352.491561-1-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. Patch [1/12] and [2/12] are bug fix patches. Changes from v9: https://lore.kernel.org/linux-pci/20230210134917.2909314-1-yoshihiro.shimoda.uh@renesas.com/ - Based on next-20230306 - Add bug fix patches into this patch series. https://lore.kernel.org/linux-pci/20230216092012.3256440-1-yoshihiro.shimoda.uh@renesas.com/ https://lore.kernel.org/linux-pci/20230222015327.3585691-1-yoshihiro.shimoda.uh@renesas.com/ - Add maximum for max-link-speed and num-lanes to dt-bindings of both host and endpoint. - Add max-functions to dt-bindings of endpoint. - Use reg-names "app" on endpoint. - Remove unnecessary linkup and wait process in rcar_gen4_pcie_host_init(). - Remove unnecessary macros in pcie-rcar-gen4.h. - Use dbi2 to write BAR mask registers. - Remove no_msix and intx_by_atu flags. - Reduce __dw_pcie_prog_outbound_atu() arguments. - Add dw_pcie_num_lanes_setup() to setup num_lanes. - Refactor dw_pcie_setup() to avoid PCIE_PORT_LINK_CONTROL writing twice. Changes from v8: https://lore.kernel.org/all/20230131095543.1831875-1-yoshihiro.shimoda.uh@renesas.com/ - Based on next-20230210. - Missing dt-bindings patches accidentally. Yoshihiro Shimoda (12): PCI: dwc: Fix writing wrong value if snps,enable-cdm-check PCI: endpoint: functions/pci-epf-test: Fix dma_chan direction dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint PCI: dwc: Refactor PCIE_PORT_LINK_CONTROL handling PCI: Add PCI_EXP_LNKCAP_MLW macros PCI: designware-ep: Expose dw_pcie_ep_exit() to module PCI: dwc: Add dw_pcie_num_lanes_setup() 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 .../bindings/pci/rcar-gen4-pci-ep.yaml | 95 ++++++++++ .../bindings/pci/rcar-gen4-pci-host.yaml | 96 ++++++++++ MAINTAINERS | 1 + drivers/pci/controller/dwc/Kconfig | 18 ++ drivers/pci/controller/dwc/Makefile | 4 + .../pci/controller/dwc/pcie-designware-ep.c | 70 +++++++- drivers/pci/controller/dwc/pcie-designware.c | 130 +++++++++----- drivers/pci/controller/dwc/pcie-designware.h | 18 +- .../pci/controller/dwc/pcie-rcar-gen4-ep.c | 170 ++++++++++++++++++ .../pci/controller/dwc/pcie-rcar-gen4-host.c | 134 ++++++++++++++ drivers/pci/controller/dwc/pcie-rcar-gen4.c | 156 ++++++++++++++++ drivers/pci/controller/dwc/pcie-rcar-gen4.h | 56 ++++++ drivers/pci/controller/dwc/pcie-tegra194.c | 5 +- drivers/pci/endpoint/functions/pci-epf-test.c | 2 +- include/uapi/linux/pci_regs.h | 6 + 15 files changed, 901 insertions(+), 60 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