FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/clock/brcm,bcm2835-cprman.txt

     Broadcom BCM2835 CPRMAN clocks
     
     This binding uses the common clock binding:
         Documentation/devicetree/bindings/clock/clock-bindings.txt
     
     The CPRMAN clock controller generates clocks in the audio power domain
     of the BCM2835.  There is a level of PLLs deriving from an external
     oscillator, a level of PLL dividers that produce channels off of the
     few PLLs, and a level of mostly-generic clock generators sourcing from
    the PLL channels.  Most other hardware components source from the
    clock generators, but a few (like the ARM or HDMI) will source from
    the PLL dividers directly.
    
    Required properties:
    - compatible:   should be one of the following,
            "brcm,bcm2711-cprman"
            "brcm,bcm2835-cprman"
    - #clock-cells: Should be <1>. The permitted clock-specifier values can be
                      found in include/dt-bindings/clock/bcm2835.h
    - reg:          Specifies base physical address and size of the registers
    - clocks:       phandles to the parent clocks used as input to the module, in
                      the following order:
    
                      - External oscillator
                      - DSI0 byte clock
                      - DSI0 DDR2 clock
                      - DSI0 DDR clock
                      - DSI1 byte clock
                      - DSI1 DDR2 clock
                      - DSI1 DDR clock
    
                      Only external oscillator is required.  The DSI clocks may
                      not be present, in which case their children will be
                      unusable.
    
    Example:
    
            clk_osc: clock@3 {
                    compatible = "fixed-clock";
                    reg = <3>;
                    #clock-cells = <0>;
                    clock-output-names = "osc";
                    clock-frequency = <19200000>;
            };
    
            clocks: cprman@7e101000 {
                    compatible = "brcm,bcm2835-cprman";
                    #clock-cells = <1>;
                    reg = <0x7e101000 0x2000>;
                    clocks = <&clk_osc>;
            };
    
            i2c0: i2c@7e205000 {
                    compatible = "brcm,bcm2835-i2c";
                    reg = <0x7e205000 0x1000>;
                    interrupts = <2 21>;
                    clocks = <&clocks BCM2835_CLOCK_VPU>;
                    #address-cells = <1>;
                    #size-cells = <0>;
            };

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