FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/clock/exynos5410-clock.txt

     * Samsung Exynos5410 Clock Controller
     
     The Exynos5410 clock controller generates and supplies clock to various
     controllers within the Exynos5410 SoC.
     
     Required Properties:
     
     - compatible: should be "samsung,exynos5410-clock"
     
    - reg: physical base address of the controller and length of memory mapped
      region.
    
    - #clock-cells: should be 1.
    
    - clocks: should contain an entry specifying the root clock from external
      oscillator supplied through XXTI or XusbXTI pin.  This clock should be
      defined using standard clock bindings with "fin_pll" clock-output-name.
      That clock is being passed internally to the 9 PLLs.
    
    All available clocks are defined as preprocessor macros in
    dt-bindings/clock/exynos5410.h header and can be used in device
    tree sources.
    
    Example 1: An example of a clock controller node is listed below.
    
            fin_pll: xxti {
                    compatible = "fixed-clock";
                    clock-frequency = <24000000>;
                    clock-output-names = "fin_pll";
                    #clock-cells = <0>;
            };
    
            clock: clock-controller@10010000 {
                    compatible = "samsung,exynos5410-clock";
                    reg = <0x10010000 0x30000>;
                    #clock-cells = <1>;
                    clocks = <&fin_pll>;
            };
    
    Example 2: UART controller node that consumes the clock generated by the clock
               controller. Refer to the standard clock bindings for information
               about 'clocks' and 'clock-names' property.
    
            serial@12c20000 {
                    compatible = "samsung,exynos4210-uart";
                    reg = <0x12C00000 0x100>;
                    interrupts = <0 51 0>;
                    clocks = <&clock CLK_UART0>, <&clock CLK_SCLK_UART0>;
                    clock-names = "uart", "clk_uart_baud0";
            };

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