Documentation/devicetree/bindings/arm/kirkwood.txt

   1 Marvell Kirkwood Platforms Device Tree Bindings
   2 -----------------------------------------------
   3
   4 Boards with a SoC of the Marvell Kirkwood
   5 shall have the following property:
   6
   7 Required root node property:
   8
   9 compatible: must contain "marvell,kirkwood";
  10
  11 In order to support the kirkwood cpufreq driver, there must be a node
  12 cpus/cpu@0 with three clocks, "cpu_clk", "ddrclk" and "powersave",
  13 where the "powersave" clock is a gating clock used to switch the CPU
  14 between the "cpu_clk" and the "ddrclk".
  15
  16 Example:
  17
  18         cpus {
  19                 #address-cells = <1>;
  20                 #size-cells = <0>;
  21
  22                 cpu@0 {
  23                       device_type = "cpu";
  24                       compatible = "marvell,sheeva-88SV131";
  25                       clocks = <&core_clk 1>, <&core_clk 3>, <&gate_clk 11>;
  26                       clock-names = "cpu_clk", "ddrclk", "powersave";
  27                 };