| * 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"; |
| }; |