linux/Documentation/devicetree/bindings/powerpc/fsl/gtm.txt
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   1* Freescale General-purpose Timers Module
   2
   3Required properties:
   4  - compatible : should be
   5    "fsl,<chip>-gtm", "fsl,gtm" for SOC GTMs
   6    "fsl,<chip>-qe-gtm", "fsl,qe-gtm", "fsl,gtm" for QE GTMs
   7    "fsl,<chip>-cpm2-gtm", "fsl,cpm2-gtm", "fsl,gtm" for CPM2 GTMs
   8  - reg : should contain gtm registers location and length (0x40).
   9  - interrupts : should contain four interrupts.
  10  - interrupt-parent : interrupt source phandle.
  11  - clock-frequency : specifies the frequency driving the timer.
  12
  13Example:
  14
  15timer@500 {
  16        compatible = "fsl,mpc8360-gtm", "fsl,gtm";
  17        reg = <0x500 0x40>;
  18        interrupts = <90 8 78 8 84 8 72 8>;
  19        interrupt-parent = <&ipic>;
  20        /* filled by u-boot */
  21        clock-frequency = <0>;
  22};
  23
  24timer@440 {
  25        compatible = "fsl,mpc8360-qe-gtm", "fsl,qe-gtm", "fsl,gtm";
  26        reg = <0x440 0x40>;
  27        interrupts = <12 13 14 15>;
  28        interrupt-parent = <&qeic>;
  29        /* filled by u-boot */
  30        clock-frequency = <0>;
  31};
  32