This commit adds the Device Tree binding description for the AP806 ring clocks, used on Marvell Armada 7K/8K SOCs. Since the AP806 ring clocks register is part of the "DFX Server" register area, the DT binding is meant to be used as a sub-node of the DFX Server DT binding, which is described separately. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx> --- .../clock/mvebu-armada-ap806-ring-clock.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/mvebu-armada-ap806-ring-clock.txt diff --git a/Documentation/devicetree/bindings/clock/mvebu-armada-ap806-ring-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-armada-ap806-ring-clock.txt new file mode 100644 index 0000000..8c8030a --- /dev/null +++ b/Documentation/devicetree/bindings/clock/mvebu-armada-ap806-ring-clock.txt @@ -0,0 +1,36 @@ +* Clock bindings for Marvell MVEBU AP806 Ring clocks + +The Marvell MVEBU Armada 7K/8K SoCs contain a block called AP806, +hosting the CPU and other core components of the CPU. This Device Tree +binding allows to describe the ring clocks of the AP806, which are +derived from the Ring Core clock, after a dividing factor. + +The register giving the dividing factors is part of the DFX server +register area, covered by the DT binding described at +Documentation/devicetree/bindings/arm/marvell/marvell,ap806-dfx-server.txt. Therefore, +the DT node for the AP806 Ring clocks must appear as a child node of +the DFX server Device Tree node. + +The following is a list of provided IDs and clock names on Armada +AP806 RING dividers: + + 0 = Ring 0 + 1 = Ring 2 + 2 = Ring 3 + 3 = Ring 4 + 4 = Ring 5 + +Required properties: +- compatible: must be one of the following: + "marvell,armada-ap806-ring-clock" +- #clock-cells : from common clock binding; shall be set to 1 +- clock-output-names: name of the output clocks + +Example: + + ringclk: clk@250 { + compatible = "marvell,armada-ap806-ring-clock"; + #clock-cells = <1>; + clock-output-names = "ring-0", "ring-2", "ring-3", "ring-4", "ring-5"; + clocks = <&coreclk 1>; + }; -- 2.6.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html