linux-kernel - [RFC 0/7] Add the iMX8MP PCIe support

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Message-Id: <1646633676-23535-1-git-send-email-hongxing.zhu@nxp.com>
Date:   Mon,  7 Mar 2022 14:14:29 +0800
From:   Richard Zhu <hongxing.zhu@....com>
To:     p.zabel@...gutronix.de, l.stach@...gutronix.de,
        bhelgaas@...gle.com, lorenzo.pieralisi@....com, robh@...nel.org,
        shawnguo@...nel.org
Cc:     devicetree@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de, linux-imx@....com
Subject: [RFC 0/7] Add the iMX8MP PCIe support

Based on the i.MX8MP GPC and blk-ctrl patch-set [1] issued by Lucas.
This series patches add the i.MX8MP PCIe support.
- i.MX8MP PCIe PHY has two resets refer to the i.MX8MM PCIe PHY.
  Add one more PHY reset for i.MX8MP PCIe PHY accordingly.
- Add the i.MX8MP PCIe PHY support in the i.MX8M PCIe PHY driver.
  And share as much as possible codes with i.MX8MM PCIe PHY.
- Add the i.MX8MP PCIe support in binding document, DTS files, and PCIe
  driver.
Tested on the i.MX8MM EVK and i.MX8MP EVK boards, PCIe works fine.

[1]:https://patchwork.kernel.org/project/linux-arm-kernel/cover/20220228201731.3330192-1-l.stach@pengutronix.de/

Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml    |   1 +
Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml |   4 +-
arch/arm64/boot/dts/freescale/imx8mp-evk.dts                 |  55 ++++++++++++++++++
arch/arm64/boot/dts/freescale/imx8mp.dtsi                    |  46 ++++++++++++++-
drivers/pci/controller/dwc/pci-imx6.c                        |  20 ++++++-
drivers/phy/freescale/phy-fsl-imx8m-pcie.c                   | 249 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------
drivers/reset/reset-imx7.c                                   |   1 +

[RFC 1/7] reset: imx7: Add the iMX8MP PCIe PHY PERST support
[RFC 2/7] dt-binding: phy: Add iMX8MP PCIe PHY binding
[RFC 3/7] phy: freescale: imx8m-pcie: Add iMX8MP PCIe PHY support
[RFC 4/7] dt-bindings: imx6q-pcie: Add iMX8MP PCIe compatible string
[RFC 5/7] arm64: dts: imx8mp: add the iMX8MP PCIe support
[RFC 6/7] arm64: dts: imx8mp-evk: Add PCIe support
[RFC 7/7] PCI: imx6: Add the iMX8MP PCIe support