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-Qualcomm QMP PHY controller
-===========================
-
-QMP phy controller supports physical layer functionality for a number of
-controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
-
-Required properties:
- - compatible: compatible list, contains:
- "qcom,msm8996-qmp-pcie-phy" for 14nm PCIe phy on msm8996,
- "qcom,msm8996-qmp-usb3-phy" for 14nm USB3 phy on msm8996.
-
- - reg: offset and length of register set for PHY's common serdes block.
-
- - #clock-cells: must be 1
- - Phy pll outputs a bunch of clocks for Tx, Rx and Pipe
- interface (for pipe based PHYs). These clock are then gate-controlled
- by gcc.
- - #address-cells: must be 1
- - #size-cells: must be 1
- - ranges: must be present
-
- - clocks: a list of phandles and clock-specifier pairs,
- one for each entry in clock-names.
- - clock-names: "cfg_ahb" for phy config clock,
- "aux" for phy aux clock,
- "ref" for 19.2 MHz ref clk,
- For "qcom,msm8996-qmp-pcie-phy" must contain:
- "aux", "cfg_ahb", "ref".
- For "qcom,msm8996-qmp-usb3-phy" must contain:
- "aux", "cfg_ahb", "ref".
-
- - resets: a list of phandles and reset controller specifier pairs,
- one for each entry in reset-names.
- - reset-names: "phy" for reset of phy block,
- "common" for phy common block reset,
- "cfg" for phy's ahb cfg block reset (Optional).
- For "qcom,msm8996-qmp-pcie-phy" must contain:
- "phy", "common", "cfg".
- For "qcom,msm8996-qmp-usb3-phy" must contain
- "phy", "common".
-
- - vdda-phy-supply: Phandle to a regulator supply to PHY core block.
- - vdda-pll-supply: Phandle to 1.8V regulator supply to PHY refclk pll block.
-
-Optional properties:
- - vddp-ref-clk-supply: Phandle to a regulator supply to any specific refclk
- pll block.
-
-Required nodes:
- - Each device node of QMP phy is required to have as many child nodes as
- the number of lanes the PHY has.
-
-Required properties for child node:
- - reg: list of offset and length pairs of register sets for PHY blocks -
- tx, rx and pcs.
-
- - #phy-cells: must be 0
-
- - clocks: a list of phandles and clock-specifier pairs,
- one for each entry in clock-names.
- - clock-names: Must contain following for pcie and usb qmp phys:
- "pipe<lane-number>" for pipe clock specific to each lane.
-
- - resets: a list of phandles and reset controller specifier pairs,
- one for each entry in reset-names.
- - reset-names: Must contain following for pcie qmp phys:
- "lane<lane-number>" for reset specific to each lane.
-
-Example:
- phy@34000 {
- compatible = "qcom,msm8996-qmp-pcie-phy";
- reg = <0x34000 0x488>;
- #clock-cells = <1>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>,
- <&gcc GCC_PCIE_PHY_CFG_AHB_CLK>,
- <&gcc GCC_PCIE_CLKREF_CLK>;
- clock-names = "aux", "cfg_ahb", "ref";
-
- vdda-phy-supply = <&pm8994_l28>;
- vdda-pll-supply = <&pm8994_l12>;
-
- resets = <&gcc GCC_PCIE_PHY_BCR>,
- <&gcc GCC_PCIE_PHY_COM_BCR>,
- <&gcc GCC_PCIE_PHY_COM_NOCSR_BCR>;
- reset-names = "phy", "common", "cfg";
-
- pciephy_0: lane@35000 {
- reg = <0x35000 0x130>,
- <0x35200 0x200>,
- <0x35400 0x1dc>;
- #phy-cells = <0>;
-
- clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
- clock-names = "pipe0";
- resets = <&gcc GCC_PCIE_0_PHY_BCR>;
- reset-names = "lane0";
- };
-
- pciephy_1: lane@36000 {
- ...
- ...
- };