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6e3ad268 TA |
1 | * Samsung Exynos5250 Clock Controller |
2 | ||
3 | The Exynos5250 clock controller generates and supplies clock to various | |
4 | controllers within the Exynos5250 SoC. | |
5 | ||
6 | Required Properties: | |
7 | ||
cdbea098 | 8 | - compatible: should be one of the following. |
6e3ad268 TA |
9 | - "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 | ||
fe273c3e AH |
16 | Each clock is assigned an identifier and client nodes can use this identifier |
17 | to specify the clock which they consume. | |
4a453314 | 18 | |
fe273c3e AH |
19 | All available clocks are defined as preprocessor macros in |
20 | dt-bindings/clock/exynos5250.h header and can be used in device | |
21 | tree sources. | |
4a453314 | 22 | |
6e3ad268 TA |
23 | Example 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 | ||
31 | Example 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>; | |
fe273c3e | 39 | clocks = <&clock CLK_UART2>, <&clock CLK_SCLK_UART2>; |
6e3ad268 TA |
40 | clock-names = "uart", "clk_uart_baud0"; |
41 | }; |