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Thomas Abraham6e3ad2682013-03-09 17:02:57 +09001* Samsung Exynos5250 Clock Controller
2
3The Exynos5250 clock controller generates and supplies clock to various
4controllers within the Exynos5250 SoC.
5
6Required Properties:
7
Laurent Pinchartcdbea092013-11-18 12:46:12 +01008- compatible: should be one of the following.
Thomas Abraham6e3ad2682013-03-09 17:02:57 +09009 - "samsung,exynos5250-clock" - controller compatible with Exynos5250 SoC.
10
11- reg: physical base address of the controller and length of memory mapped
12 region.
13
14- #clock-cells: should be 1.
15
Andrzej Hajdafe273c32014-02-26 09:53:30 +090016Each clock is assigned an identifier and client nodes can use this identifier
17to specify the clock which they consume.
Thomas Abraham6e3ad2682013-03-09 17:02:57 +090018
Andrzej Hajdafe273c32014-02-26 09:53:30 +090019All available clocks are defined as preprocessor macros in
20dt-bindings/clock/exynos5250.h header and can be used in device
21tree sources.
Rahul Sharma4a453312013-07-25 10:37:34 +053022
Thomas Abraham6e3ad2682013-03-09 17:02:57 +090023Example 1: An example of a clock controller node is listed below.
24
25 clock: clock-controller@0x10010000 {
26 compatible = "samsung,exynos5250-clock";
27 reg = <0x10010000 0x30000>;
28 #clock-cells = <1>;
29 };
30
31Example 2: UART controller node that consumes the clock generated by the clock
32 controller. Refer to the standard clock bindings for information
33 about 'clocks' and 'clock-names' property.
34
35 serial@13820000 {
36 compatible = "samsung,exynos4210-uart";
37 reg = <0x13820000 0x100>;
38 interrupts = <0 54 0>;
Andrzej Hajdafe273c32014-02-26 09:53:30 +090039 clocks = <&clock CLK_UART2>, <&clock CLK_SCLK_UART2>;
Thomas Abraham6e3ad2682013-03-09 17:02:57 +090040 clock-names = "uart", "clk_uart_baud0";
41 };