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Diffstat (limited to 'Documentation/devicetree/bindings/clock/corenet-clock.txt')
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diff --git a/Documentation/devicetree/bindings/clock/corenet-clock.txt b/Documentation/devicetree/bindings/clock/corenet-clock.txt deleted file mode 100644 index 24711af48e30..000000000000 --- a/Documentation/devicetree/bindings/clock/corenet-clock.txt +++ /dev/null @@ -1,134 +0,0 @@ -* Clock Block on Freescale CoreNet Platforms - -Freescale CoreNet chips take primary clocking input from the external -SYSCLK signal. The SYSCLK input (frequency) is multiplied using -multiple phase locked loops (PLL) to create a variety of frequencies -which can then be passed to a variety of internal logic, including -cores and peripheral IP blocks. -Please refer to the Reference Manual for details. - -1. Clock Block Binding - -Required properties: -- compatible: Should contain a specific clock block compatible string - and a single chassis clock compatible string. - Clock block strings include, but not limited to, one of the: - * "fsl,p2041-clockgen" - * "fsl,p3041-clockgen" - * "fsl,p4080-clockgen" - * "fsl,p5020-clockgen" - * "fsl,p5040-clockgen" - * "fsl,t4240-clockgen" - * "fsl,b4420-clockgen" - * "fsl,b4860-clockgen" - Chassis clock strings include: - * "fsl,qoriq-clockgen-1.0": for chassis 1.0 clocks - * "fsl,qoriq-clockgen-2.0": for chassis 2.0 clocks -- reg: Describes the address of the device's resources within the - address space defined by its parent bus, and resource zero - represents the clock register set -- clock-frequency: Input system clock frequency - -Recommended properties: -- ranges: Allows valid translation between child's address space and - parent's. Must be present if the device has sub-nodes. -- #address-cells: Specifies the number of cells used to represent - physical base addresses. Must be present if the device has - sub-nodes and set to 1 if present -- #size-cells: Specifies the number of cells used to represent - the size of an address. Must be present if the device has - sub-nodes and set to 1 if present - -2. Clock Provider/Consumer Binding - -Most of the bindings are from the common clock binding[1]. - [1] Documentation/devicetree/bindings/clock/clock-bindings.txt - -Required properties: -- compatible : Should include one of the following: - * "fsl,qoriq-core-pll-1.0" for core PLL clocks (v1.0) - * "fsl,qoriq-core-pll-2.0" for core PLL clocks (v2.0) - * "fsl,qoriq-core-mux-1.0" for core mux clocks (v1.0) - * "fsl,qoriq-core-mux-2.0" for core mux clocks (v2.0) - * "fsl,qoriq-sysclk-1.0": for input system clock (v1.0). - It takes parent's clock-frequency as its clock. - * "fsl,qoriq-sysclk-2.0": for input system clock (v2.0). - It takes parent's clock-frequency as its clock. -- #clock-cells: From common clock binding. The number of cells in a - clock-specifier. Should be <0> for "fsl,qoriq-sysclk-[1,2].0" - clocks, or <1> for "fsl,qoriq-core-pll-[1,2].0" clocks. - For "fsl,qoriq-core-pll-[1,2].0" clocks, the single - clock-specifier cell may take the following values: - * 0 - equal to the PLL frequency - * 1 - equal to the PLL frequency divided by 2 - * 2 - equal to the PLL frequency divided by 4 - -Recommended properties: -- clocks: Should be the phandle of input parent clock -- clock-names: From common clock binding, indicates the clock name -- clock-output-names: From common clock binding, indicates the names of - output clocks -- reg: Should be the offset and length of clock block base address. - The length should be 4. - -Example for clock block and clock provider: -/ { - clockgen: global-utilities@e1000 { - compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0"; - ranges = <0x0 0xe1000 0x1000>; - clock-frequency = <133333333>; - reg = <0xe1000 0x1000>; - #address-cells = <1>; - #size-cells = <1>; - - sysclk: sysclk { - #clock-cells = <0>; - compatible = "fsl,qoriq-sysclk-1.0"; - clock-output-names = "sysclk"; - } - - pll0: pll0@800 { - #clock-cells = <1>; - reg = <0x800 0x4>; - compatible = "fsl,qoriq-core-pll-1.0"; - clocks = <&sysclk>; - clock-output-names = "pll0", "pll0-div2"; - }; - - pll1: pll1@820 { - #clock-cells = <1>; - reg = <0x820 0x4>; - compatible = "fsl,qoriq-core-pll-1.0"; - clocks = <&sysclk>; - clock-output-names = "pll1", "pll1-div2"; - }; - - mux0: mux0@0 { - #clock-cells = <0>; - reg = <0x0 0x4>; - compatible = "fsl,qoriq-core-mux-1.0"; - clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>; - clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2"; - clock-output-names = "cmux0"; - }; - - mux1: mux1@20 { - #clock-cells = <0>; - reg = <0x20 0x4>; - compatible = "fsl,qoriq-core-mux-1.0"; - clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>; - clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2"; - clock-output-names = "cmux1"; - }; - }; - } - -Example for clock consumer: - -/ { - cpu0: PowerPC,e5500@0 { - ... - clocks = <&mux0>; - ... - }; - } |