FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/phy/brcm,sr-pcie-phy.txt

     Broadcom Stingray PCIe PHY
     
     Required properties:
     - compatible: must be "brcm,sr-pcie-phy"
     - reg: base address and length of the PCIe SS register space
     - brcm,sr-cdru: phandle to the CDRU syscon node
     - brcm,sr-mhb: phandle to the MHB syscon node
     - #phy-cells: Must be 1, denotes the PHY index
     
    For PAXB based root complex, one can have a configuration of up to 8 PHYs
    PHY index goes from 0 to 7
    
    For the internal PAXC based root complex, PHY index is always 8
    
    Example:
            mhb: syscon@60401000 {
                    compatible = "brcm,sr-mhb", "syscon";
                    reg = <0 0x60401000 0 0x38c>;
            };
    
            cdru: syscon@6641d000 {
                    compatible = "brcm,sr-cdru", "syscon";
                    reg = <0 0x6641d000 0 0x400>;
            };
    
            pcie_phy: phy@40000000 {
                    compatible = "brcm,sr-pcie-phy";
                    reg = <0 0x40000000 0 0x800>;
                    brcm,sr-cdru = <&cdru>;
                    brcm,sr-mhb = <&mhb>;
                    #phy-cells = <1>;
            };
    
            /* users of the PCIe PHY */
    
            pcie0: pcie@48000000 {
                    ...
                    ...
                    phys = <&pcie_phy 0>;
                    phy-names = "pcie-phy";
            };

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