FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/phy/phy-tegra194-p2u.txt

     NVIDIA Tegra194 P2U binding
     
     Tegra194 has two PHY bricks namely HSIO (High Speed IO) and NVHS (NVIDIA High
     Speed) each interfacing with 12 and 8 P2U instances respectively.
     A P2U instance is a glue logic between Synopsys DesignWare Core PCIe IP's PIPE
     interface and PHY of HSIO/NVHS bricks. Each P2U instance represents one PCIe
     lane.
     
     Required properties:
    - compatible: For Tegra19x, must contain "nvidia,tegra194-p2u".
    - reg: Should be the physical address space and length of respective each P2U
           instance.
    - reg-names: Must include the entry "ctl".
    
    Required properties for PHY port node:
    - #phy-cells: Defined by generic PHY bindings.  Must be 0.
    
    Refer to phy/phy-bindings.txt for the generic PHY binding properties.
    
    Example:
    
    p2u_hsio_0: phy@3e10000 {
            compatible = "nvidia,tegra194-p2u";
            reg = <0x03e10000 0x10000>;
            reg-names = "ctl";
    
            #phy-cells = <0>;
    };

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