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Diffstat (limited to 'Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt')
-rw-r--r-- | Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt new file mode 100644 index 000000000000..ce06435d28ed --- /dev/null +++ b/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt | |||
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1 | * Amlogic GXBB Clock and Reset Unit | ||
2 | |||
3 | The Amlogic GXBB clock controller generates and supplies clock to various | ||
4 | controllers within the SoC. | ||
5 | |||
6 | Required Properties: | ||
7 | |||
8 | - compatible: should be "amlogic,gxbb-clkc" | ||
9 | - reg: physical base address of the clock controller and length of memory | ||
10 | mapped region. | ||
11 | |||
12 | - #clock-cells: should be 1. | ||
13 | |||
14 | Each clock is assigned an identifier and client nodes can use this identifier | ||
15 | to specify the clock which they consume. All available clocks are defined as | ||
16 | preprocessor macros in the dt-bindings/clock/gxbb-clkc.h header and can be | ||
17 | used in device tree sources. | ||
18 | |||
19 | Example: Clock controller node: | ||
20 | |||
21 | clkc: clock-controller@c883c000 { | ||
22 | #clock-cells = <1>; | ||
23 | compatible = "amlogic,gxbb-clkc"; | ||
24 | reg = <0x0 0xc883c000 0x0 0x3db>; | ||
25 | }; | ||
26 | |||
27 | Example: UART controller node that consumes the clock generated by the clock | ||
28 | controller: | ||
29 | |||
30 | uart_AO: serial@c81004c0 { | ||
31 | compatible = "amlogic,meson-uart"; | ||
32 | reg = <0xc81004c0 0x14>; | ||
33 | interrupts = <0 90 1>; | ||
34 | clocks = <&clkc CLKID_CLK81>; | ||
35 | status = "disabled"; | ||
36 | }; | ||