FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/phy/phy-mtk-ufs.txt

     MediaTek Universal Flash Storage (UFS) M-PHY binding
     --------------------------------------------------------
     
     UFS M-PHY nodes are defined to describe on-chip UFS M-PHY hardware macro.
     Each UFS M-PHY node should have its own node.
     
     To bind UFS M-PHY with UFS host controller, the controller node should
     contain a phandle reference to UFS M-PHY node.
     
    Required properties for UFS M-PHY nodes:
    - compatible         : Compatible list, contains the following controller:
                           "mediatek,mt8183-ufsphy" for ufs phy
                           persent on MT81xx chipsets.
    - reg                : Address and length of the UFS M-PHY register set.
    - #phy-cells         : This property shall be set to 0.
    - clocks             : List of phandle and clock specifier pairs.
    - clock-names        : List of clock input name strings sorted in the same
                           order as the clocks property. Following clocks are
                           mandatory.
                           "unipro": Unipro core control clock.
                           "mp": M-PHY core control clock.
    
    Example:
    
            ufsphy: phy@11fa0000 {
                    compatible = "mediatek,mt8183-ufsphy";
                    reg = <0 0x11fa0000 0 0xc000>;
                    #phy-cells = <0>;
    
                    clocks = <&infracfg_ao INFRACFG_AO_UNIPRO_SCK_CG>,
                             <&infracfg_ao INFRACFG_AO_UFS_MP_SAP_BCLK_CG>;
                    clock-names = "unipro", "mp";
            };
    
            ufshci@11270000 {
                    ...
                    phys = <&ufsphy>;
            };

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