FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/arm/sp810.txt

     SP810 System Controller
     -----------------------
     
     Required properties:
     
     - compatible:   standard compatible string for a Primecell peripheral,
                     see Documentation/devicetree/bindings/arm/primecell.yaml
                     for more details
                     should be: "arm,sp810", "arm,primecell"
    
    - reg:          standard registers property, physical address and size
                    of the control registers
    
    - clock-names:  from the common clock bindings, for more details see
                    Documentation/devicetree/bindings/clock/clock-bindings.txt;
                    should be: "refclk", "timclk", "apb_pclk"
    
    - clocks:       from the common clock bindings, phandle and clock
                    specifier pairs for the entries of clock-names property
    
    - #clock-cells: from the common clock bindings;
                    should be: <1>
    
    - clock-output-names: from the common clock bindings;
                    should be: "timerclken0", "timerclken1", "timerclken2", "timerclken3"
    
    - assigned-clocks: from the common clock binding;
                    should be: clock specifier for each output clock of this
                    provider node
    
    - assigned-clock-parents: from the common clock binding;
                    should be: phandle of input clock listed in clocks
                    property with the highest frequency
    
    Example:
            v2m_sysctl: sysctl@20000 {
                    compatible = "arm,sp810", "arm,primecell";
                    reg = <0x020000 0x1000>;
                    clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&smbclk>;
                    clock-names = "refclk", "timclk", "apb_pclk";
                    #clock-cells = <1>;
                    clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3";
                    assigned-clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&v2m_sysctl 3>, <&v2m_sysctl 3>;
                    assigned-clock-parents = <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>;
    
            };

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