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1* Samsung Exynos3250 Clock Controller
2
3The Exynos3250 clock controller generates and supplies clock to various
4controllers within the Exynos3250 SoC.
5
6Required Properties:
7
8- compatible: should be one of the following.
9 - "samsung,exynos3250-cmu" - controller compatible with Exynos3250 SoC.
10 - "samsung,exynos3250-cmu-dmc" - controller compatible with
11 Exynos3250 SoC for Dynamic Memory Controller domain.
12
13- reg: physical base address of the controller and length of memory mapped
14 region.
15
16- #clock-cells: should be 1.
17
18Each clock is assigned an identifier and client nodes can use this identifier
19to specify the clock which they consume.
20
21All available clocks are defined as preprocessor macros in
22dt-bindings/clock/exynos3250.h header and can be used in device
23tree sources.
24
25Example 1: Examples of clock controller nodes are listed below.
26
27 cmu: clock-controller@10030000 {
28 compatible = "samsung,exynos3250-cmu";
29 reg = <0x10030000 0x20000>;
30 #clock-cells = <1>;
31 };
32
33 cmu_dmc: clock-controller@105C0000 {
34 compatible = "samsung,exynos3250-cmu-dmc";
35 reg = <0x105C0000 0x2000>;
36 #clock-cells = <1>;
37 };
38
39Example 2: UART controller node that consumes the clock generated by the clock
40 controller. Refer to the standard clock bindings for information
41 about 'clocks' and 'clock-names' property.
42
43 serial@13800000 {
44 compatible = "samsung,exynos4210-uart";
45 reg = <0x13800000 0x100>;
46 interrupts = <0 109 0>;
47 clocks = <&cmu CLK_UART0>, <&cmu CLK_SCLK_UART0>;
48 clock-names = "uart", "clk_uart_baud0";
49 };