linux-kernel - [RFC/RFT v2 00/11] RK3568 PCIe V3 support

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Message-Id: <20220426132139.26761-1-linux@fw-web.de>
Date:   Tue, 26 Apr 2022 15:21:28 +0200
From:   Frank Wunderlich <linux@...web.de>
To:     linux-rockchip@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Johan Jonker <jbx6244@...il.com>,
        Peter Geis <pgwipeout@...il.com>,
        Michael Riesch <michael.riesch@...fvision.net>,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org
Subject: [RFC/RFT v2 00/11] RK3568 PCIe V3 support

From: Frank Wunderlich <frank-w@...lic-files.de>

This series adds Rockchip PCIe V3 support found on rk3568 SOC.

It is based on "Enable rk356x PCIe controller" series of Peter Geis
v8: https://patchwork.kernel.org/project/linux-rockchip/list/?series=634925

Compared to PCIeV2 which uses the Naneng combphy, pciev3
uses a dedicated pci-phy.

This Version is still an RFC/RFT because i cannot only test PCIe-slot on R2Pro
as the other is a M.2 Key-E where i don't have any Hardware.

last 3 Patches show a replacement for bifurcation setting to make it more
useful for vendor-indepent lane-mapping.

Frank Wunderlich (11):
  dt-bindings: phy: rockchip: add PCIe v3 phy
  dt-bindings: soc: grf: add pcie30-{phy,pipe}-grf
  dt-bindings: phy: rockchip: add PCIe v3 constants
  phy: rockchip: Support PCIe v3
  dt-bindings: pci: add bifurcation option to Rockchip DesignWare
    binding
  PCI: rockchip-dwc: add PCIe bifurcation
  arm64: dts: rockchip: rk3568: Add PCIe v3 nodes
  arm64: dts: rockchip: Add PCIe v3 nodes to BPI-R2-Pro
  dt-bindings: pci: add lane-map to rockchip PCIe binding
  PCI: rockchip: add a lane-map to rockchip pcie driver
  arm64: dts: rockchip: add basic lane-map and drop bifurcation from
    r2pro

 .../bindings/pci/rockchip-dw-pcie.yaml        |   3 +
 .../bindings/phy/rockchip,pcie3-phy.yaml      |  84 ++++++
 .../devicetree/bindings/soc/rockchip/grf.yaml |   3 +
 .../boot/dts/rockchip/rk3568-bpi-r2-pro.dts   |  79 +++++
 arch/arm64/boot/dts/rockchip/rk3568.dtsi      | 122 ++++++++
 drivers/pci/controller/dwc/pcie-dw-rockchip.c |  22 ++
 drivers/phy/rockchip/Kconfig                  |   9 +
 drivers/phy/rockchip/Makefile                 |   1 +
 .../phy/rockchip/phy-rockchip-snps-pcie3.c    | 278 ++++++++++++++++++
 include/dt-bindings/phy/phy-rockchip-pcie3.h  |  21 ++
 include/linux/phy/pcie.h                      |  12 +
 11 files changed, 634 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/rockchip,pcie3-phy.yaml
 create mode 100644 drivers/phy/rockchip/phy-rockchip-snps-pcie3.c
 create mode 100644 include/dt-bindings/phy/phy-rockchip-pcie3.h
 create mode 100644 include/linux/phy/pcie.h

-- 
2.25.1