1* Samsung Exynos5420 Clock Controller 2 3The Exynos5420 clock controller generates and supplies clock to various 4controllers within the Exynos5420 SoC and for the Exynos5800 SoC. 5 6Required Properties: 7 8- compatible: should be one of the following. 9 - "samsung,exynos5420-clock" - controller compatible with Exynos5420 SoC. 10 - "samsung,exynos5800-clock" - controller compatible with Exynos5800 SoC. 11 12- reg: physical base address of the controller and length of memory mapped 13 region. 14 15- #clock-cells: should be 1. 16 17Each clock is assigned an identifier and client nodes can use this identifier 18to specify the clock which they consume. 19 20All available clocks are defined as preprocessor macros in 21dt-bindings/clock/exynos5420.h header and can be used in device 22tree sources. 23 24Example 1: An example of a clock controller node is listed below. 25 26 clock: clock-controller@10010000 { 27 compatible = "samsung,exynos5420-clock"; 28 reg = <0x10010000 0x30000>; 29 #clock-cells = <1>; 30 }; 31 32Example 2: UART controller node that consumes the clock generated by the clock 33 controller. Refer to the standard clock bindings for information 34 about 'clocks' and 'clock-names' property. 35 36 serial@13820000 { 37 compatible = "samsung,exynos4210-uart"; 38 reg = <0x13820000 0x100>; 39 interrupts = <0 54 0>; 40 clocks = <&clock CLK_UART2>, <&clock CLK_SCLK_UART2>; 41 clock-names = "uart", "clk_uart_baud0"; 42 }; 43