From patchwork Thu Sep 22 08:06:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 12984681 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 C3449C6FA8B for ; Thu, 22 Sep 2022 08:07:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229663AbiIVIHJ (ORCPT ); Thu, 22 Sep 2022 04:07:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45026 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229797AbiIVIHI (ORCPT ); Thu, 22 Sep 2022 04:07:08 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 484DDB40D9; Thu, 22 Sep 2022 01:07:07 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.93,335,1654527600"; d="scan'208";a="135810761" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 22 Sep 2022 17:07:06 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id A84084185388; Thu, 22 Sep 2022 17:07:06 +0900 (JST) From: Yoshihiro Shimoda To: lpieralisi@kernel.org, robh+dt@kernel.org, kw@linux.com, bhelgaas@google.com, krzk+dt@kernel.org 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 v6 00/10] PCI: rcar-gen4: Add R-Car Gen4 PCIe support Date: Thu, 22 Sep 2022 17:06:37 +0900 Message-Id: <20220922080647.3489791-1-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. Base kernel is the same as v5. Changes from v5: https://lore.kernel.org/all/20220905071257.1059436-1-yoshihiro.shimoda.uh@renesas.com/ - No treewide patches. - Drop PCI_EXP_LNKCAP_MLW_X32 in patch [03/10]. - Add Acked-by in patch [03/10]. - Fix subject prefix in patch [04/10], [05/10], [08/10] and [09/10]. - Fix typo in patch [05/10] and [07/10]. 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 (10): 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: designware-ep: Expose dw_pcie_ep_exit() to module PCI: designware-ep: 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: 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 | 99 +++++++++ .../bindings/pci/rcar-gen4-pci-host.yaml | 97 +++++++++ MAINTAINERS | 1 + 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 | 6 + 13 files changed, 864 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