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[~andy/linux] / Documentation / devicetree / bindings / clock / renesas,rcar-gen2-cpg-clocks.txt
1 * Renesas R-Car Gen2 Clock Pulse Generator (CPG)
2
3 The CPG generates core clocks for the R-Car Gen2 SoCs. It includes three PLLs
4 and several fixed ratio dividers.
5
6 Required Properties:
7
8   - compatible: Must be one of
9     - "renesas,r8a7790-cpg-clocks" for the r8a7790 CPG
10     - "renesas,r8a7791-cpg-clocks" for the r8a7791 CPG
11     - "renesas,rcar-gen2-cpg-clocks" for the generic R-Car Gen2 CPG
12
13   - reg: Base address and length of the memory resource used by the CPG
14
15   - clocks: Reference to the parent clock
16   - #clock-cells: Must be 1
17   - clock-output-names: The names of the clocks. Supported clocks are "main",
18     "pll0", "pll1", "pll3", "lb", "qspi", "sdh", "sd0", "sd1" and "z"
19
20
21 Example
22 -------
23
24         cpg_clocks: cpg_clocks@e6150000 {
25                 compatible = "renesas,r8a7790-cpg-clocks",
26                              "renesas,rcar-gen2-cpg-clocks";
27                 reg = <0 0xe6150000 0 0x1000>;
28                 clocks = <&extal_clk>;
29                 #clock-cells = <1>;
30                 clock-output-names = "main", "pll0, "pll1", "pll3",
31                                      "lb", "qspi", "sdh", "sd0", "sd1", "z";
32         };