1 SAMSUNG Exynos SoC series PMU Registers
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,exynos4212-pmu" - for Exynos4212 SoC,
8 - "samsung,exynos4412-pmu" - for Exynos4412 SoC,
9 - "samsung,exynos5250-pmu" - for Exynos5250 SoC,
10 - "samsung,exynos5260-pmu" - for Exynos5260 SoC.
11 - "samsung,exynos5410-pmu" - for Exynos5410 SoC,
12 - "samsung,exynos5420-pmu" - for Exynos5420 SoC.
13 - "samsung,exynos5433-pmu" - for Exynos5433 SoC.
14 - "samsung,exynos7-pmu" - for Exynos7 SoC.
15 second value must be always "syscon".
17 - reg : offset and length of the register set.
19 - #clock-cells : must be <1>, since PMU requires once cell as clock specifier.
20 The single specifier cell is used as index to list of clocks
21 provided by PMU, which is currently:
22 0 : SoC clock output (CLKOUT pin)
24 - clock-names : list of clock names for particular CLKOUT mux inputs in
26 "clkoutN", where N is a decimal number corresponding to
27 CLKOUT mux control bits value for given input, e.g.
28 "clkout0", "clkout7", "clkout15".
30 - clocks : list of phandles and specifiers to all input clocks listed in
35 Some PMUs are capable of behaving as an interrupt controller (mostly
36 to wake up a suspended PMU). In which case, they can have the
39 - interrupt-controller: indicate that said PMU is an interrupt controller
41 - #interrupt-cells: must be identical to the that of the parent interrupt
44 - interrupt-parent: a phandle indicating which interrupt controller
45 this PMU signals interrupts to.
48 pmu_system_controller: system-controller@10040000 {
49 compatible = "samsung,exynos5250-pmu", "syscon";
50 reg = <0x10040000 0x5000>;
52 #interrupt-cells = <3>;
53 interrupt-parent = <&gic>;
55 clock-names = "clkout0", "clkout1", "clkout2", "clkout3",
56 "clkout4", "clkout8", "clkout9";
57 clocks = <&clock CLK_OUT_DMC>, <&clock CLK_OUT_TOP>,
58 <&clock CLK_OUT_LEFTBUS>, <&clock CLK_OUT_RIGHTBUS>,
59 <&clock CLK_OUT_CPU>, <&clock CLK_XXTI>,
63 Example of clock consumer :
67 clock-names = "refclk";
68 clocks = <&pmu_system_controller 0>;