linux-kernel - [PATCH v5 0/7] Add support for PCIe controller to work in endpoint mode on R-Car SoCs

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Message-Id: <20200228154122.14164-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date:   Fri, 28 Feb 2020 15:41:15 +0000
From:   Lad Prabhakar <prabhakar.csengg@...il.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     Andrew Murray <andrew.murray@....com>, linux-pci@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v5 0/7] Add support for PCIe controller to work in endpoint mode on R-Car SoCs

This patch series adds support for PCIe controller on rcar to work in
endpoint mode, this also extends the epf framework to handle base region
for mapping PCI address locally.

Note:
The cadence/rockchip/designware endpoint drivers are build tested only.

Changes for v5:
1] Rebased the patches on next branch of https://git.kernel.org/pub/scm/
   linux/kernel/git/helgaas/pci.git
2] Fixed review comments reported by Kishon while fetching the matching
   window in function pci_epc_get_matching_window()
3] Fixed review comments reported by Bjorn
   a] Split patch up first patch so that its easier to review and incremental
   b] Fixed typos
4] Included Reviewed tag from Rob for the dt-binding patch
5] Fixed issue reported by Nathan for assigning variable to itself

Changes for v4:
1] Fixed dtb_check error reported by Rob
2] Fixed review comments reported by Kishon
   a] Dropped pci_epc_find_best_fit_window()
   b] Fixed initializing mem ptr in __pci_epc_mem_init()
   c] Dropped map_size from pci_epc_mem_window structure

Changes for v3:
1] Fixed review comments from Bjorn and Kishon.
3] Converted to DT schema

Changes for v2:
1] Fixed review comments from Biju for dt-bindings to include an example
   for a tested platform.
2] Fixed review comments from Kishon to extend the features of outbound
   regions in epf framework.
3] Added support to parse outbound-ranges in OF.

Lad Prabhakar (7):
  PCI: rcar: Rename pcie-rcar.c to pcie-rcar-host.c
  PCI: rcar: Move shareable code to a common file
  PCI: rcar: Fix calculating mask for PCIEPAMR register
  PCI: endpoint: Add support to handle multiple base for mapping
    outbound memory
  dt-bindings: PCI: rcar: Add bindings for R-Car PCIe endpoint
    controller
  PCI: rcar: Add support for rcar PCIe controller in endpoint mode
  misc: pci_endpoint_test: Add Device ID for RZ/G2E PCIe controller

 .../devicetree/bindings/pci/rcar-pci-ep.yaml       |   76 ++
 arch/arm64/configs/defconfig                       |    2 +-
 drivers/misc/pci_endpoint_test.c                   |    3 +
 drivers/pci/controller/Kconfig                     |   15 +-
 drivers/pci/controller/Makefile                    |    3 +-
 drivers/pci/controller/cadence/pcie-cadence-ep.c   |    7 +-
 drivers/pci/controller/dwc/pcie-designware-ep.c    |   29 +-
 drivers/pci/controller/pcie-rcar-ep.c              |  490 ++++++++
 drivers/pci/controller/pcie-rcar-host.c            | 1053 +++++++++++++++++
 drivers/pci/controller/pcie-rcar.c                 | 1229 +-------------------
 drivers/pci/controller/pcie-rcar.h                 |  129 ++
 drivers/pci/controller/pcie-rockchip-ep.c          |    7 +-
 drivers/pci/endpoint/pci-epc-mem.c                 |  167 ++-
 include/linux/pci-epc.h                            |   39 +-
 14 files changed, 1985 insertions(+), 1264 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/rcar-pci-ep.yaml
 create mode 100644 drivers/pci/controller/pcie-rcar-ep.c
 create mode 100644 drivers/pci/controller/pcie-rcar-host.c
 create mode 100644 drivers/pci/controller/pcie-rcar.h

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2.7.4