1SAMSUNG Exynos SoC series PMU Registers
2
3Properties:
4 - compatible : should contain two values. First value must be one from following list:
5		   - "samsung,exynos3250-pmu" - for Exynos3250 SoC,
6		   - "samsung,exynos4210-pmu" - for Exynos4210 SoC,
7		   - "samsung,exynos4412-pmu" - for Exynos4412 SoC,
8		   - "samsung,exynos5250-pmu" - for Exynos5250 SoC,
9		   - "samsung,exynos5260-pmu" - for Exynos5260 SoC.
10		   - "samsung,exynos5410-pmu" - for Exynos5410 SoC,
11		   - "samsung,exynos5420-pmu" - for Exynos5420 SoC.
12		   - "samsung,exynos5433-pmu" - for Exynos5433 SoC.
13		   - "samsung,exynos7-pmu" - for Exynos7 SoC.
14		second value must be always "syscon".
15
16 - reg : offset and length of the register set.
17
18 - #clock-cells : must be <1>, since PMU requires once cell as clock specifier.
19		The single specifier cell is used as index to list of clocks
20		provided by PMU, which is currently:
21			0 : SoC clock output (CLKOUT pin)
22
23 - clock-names : list of clock names for particular CLKOUT mux inputs in
24		following format:
25			"clkoutN", where N is a decimal number corresponding to
26			CLKOUT mux control bits value for given input, e.g.
27				"clkout0", "clkout7", "clkout15".
28
29 - clocks : list of phandles and specifiers to all input clocks listed in
30		clock-names property.
31
32Optional properties:
33
34Some PMUs are capable of behaving as an interrupt controller (mostly
35to wake up a suspended PMU). In which case, they can have the
36following properties:
37
38- interrupt-controller: indicate that said PMU is an interrupt controller
39
40- #interrupt-cells: must be identical to the that of the parent interrupt
41  controller.
42
43
44Optional nodes:
45
46- nodes defining the restart and poweroff syscon children
47
48
49Example :
50pmu_system_controller: system-controller@10040000 {
51	compatible = "samsung,exynos5250-pmu", "syscon";
52	reg = <0x10040000 0x5000>;
53	interrupt-controller;
54	#interrupt-cells = <3>;
55	interrupt-parent = <&gic>;
56	#clock-cells = <1>;
57	clock-names = "clkout0", "clkout1", "clkout2", "clkout3",
58			"clkout4", "clkout8", "clkout9";
59	clocks = <&clock CLK_OUT_DMC>, <&clock CLK_OUT_TOP>,
60		<&clock CLK_OUT_LEFTBUS>, <&clock CLK_OUT_RIGHTBUS>,
61		<&clock CLK_OUT_CPU>, <&clock CLK_XXTI>,
62		<&clock CLK_XUSBXTI>;
63};
64
65Example of clock consumer :
66
67usb3503: usb3503@8 {
68	/* ... */
69	clock-names = "refclk";
70	clocks = <&pmu_system_controller 0>;
71	/* ... */
72};
73