FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/clock/exynos3250-clock.txt

     * Samsung Exynos3250 Clock Controller
     
     The Exynos3250 clock controller generates and supplies clock to various
     controllers within the Exynos3250 SoC.
     
     Required Properties:
     
     - compatible: should be one of the following.
       - "samsung,exynos3250-cmu" - controller compatible with Exynos3250 SoC.
      - "samsung,exynos3250-cmu-dmc" - controller compatible with
        Exynos3250 SoC for Dynamic Memory Controller domain.
      - "samsung,exynos3250-cmu-isp" - ISP block clock controller compatible
         with Exynos3250 SOC
    
    - reg: physical base address of the controller and length of memory mapped
      region.
    
    - #clock-cells: should be 1.
    
    Each clock is assigned an identifier and client nodes can use this identifier
    to specify the clock which they consume.
    
    All available clocks are defined as preprocessor macros in
    dt-bindings/clock/exynos3250.h header and can be used in device
    tree sources.
    
    Example 1: Examples of clock controller nodes are listed below.
    
            cmu: clock-controller@10030000 {
                    compatible = "samsung,exynos3250-cmu";
                    reg = <0x10030000 0x20000>;
                    #clock-cells = <1>;
            };
    
            cmu_dmc: clock-controller@105c0000 {
                    compatible = "samsung,exynos3250-cmu-dmc";
                    reg = <0x105C0000 0x2000>;
                    #clock-cells = <1>;
            };
    
            cmu_isp: clock-controller@10048000 {
                    compatible = "samsung,exynos3250-cmu-isp";
                    reg = <0x10048000 0x1000>;
                    #clock-cells = <1>;
            };
    
    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@13800000 {
                    compatible = "samsung,exynos4210-uart";
                    reg = <0x13800000 0x100>;
                    interrupts = <0 109 0>;
                    clocks = <&cmu CLK_UART0>, <&cmu CLK_SCLK_UART0>;
                    clock-names = "uart", "clk_uart_baud0";
            };

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