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Diffstat (limited to 'Documentation/devicetree/bindings/arm/marvell/kirkwood.txt')
-rw-r--r-- | Documentation/devicetree/bindings/arm/marvell/kirkwood.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/marvell/kirkwood.txt b/Documentation/devicetree/bindings/arm/marvell/kirkwood.txt new file mode 100644 index 0000000000..98cce9a653 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/marvell/kirkwood.txt @@ -0,0 +1,27 @@ +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"; + }; |