Marvell Kirkwood Platforms Device Tree Bindings ----------------------------------------------- Boards with a SoC of the Marvell Kirkwood shall have the following property: Required root node property: compatible: must contain "marvell,kirkwood"; In order to support the kirkwood cpufreq driver, there must be a node cpus/cpu@0 with three clocks, "cpu_clk", "ddrclk" and "powersave", where the "powersave" clock is a gating clock used to switch the CPU between the "cpu_clk" and the "ddrclk". Example: cpus { #address-cells = <1>; #size-cells = <0>; cpu@0 { device_type = "cpu"; compatible = "marvell,sheeva-88SV131"; clocks = <&core_clk 1>, <&core_clk 3>, <&gate_clk 11>; clock-names = "cpu_clk", "ddrclk", "powersave"; };