Convert qoria-clock DT binding to yaml format. Split to two files qoriq-clock.yaml and qoriq-clock-legancy.yaml. Addtional change: - Remove clock consumer part in example - Fixed example dts error - Deprecated legancy node - fsl,b4420-clockgen and fsl,b4860-clockgen fallback to fsl,b4-clockgen. Signed-off-by: Frank Li <Frank.Li@xxxxxxx> --- Change from v1 to v2 - split comatible to 4 groups. - drop empty line - change sysclk pattern --- .../clock/fsl,qoriq-clock-legacy.yaml | 84 +++++++ .../bindings/clock/fsl,qoriq-clock.yaml | 207 +++++++++++++++++ .../devicetree/bindings/clock/qoriq-clock.txt | 212 ------------------ 3 files changed, 291 insertions(+), 212 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml create mode 100644 Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml delete mode 100644 Documentation/devicetree/bindings/clock/qoriq-clock.txt diff --git a/Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml new file mode 100644 index 0000000000000..97b96a1a58254 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml @@ -0,0 +1,84 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/fsl,qoriq-clock-legacy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Legacy Clock Block on Freescale QorIQ Platforms + +maintainers: + - Frank Li <Frank.Li@xxxxxxx> + +description: | + These nodes are deprecated. Kernels should continue to support + device trees with these nodes, but new device trees should not use them. + + Most of the bindings are from the common clock binding[1]. + [1] Documentation/devicetree/bindings/clock/clock-bindings.txt + +properties: + compatible: + enum: + - fsl,qoriq-core-pll-1.0 + - fsl,qoriq-core-pll-2.0 + - fsl,qoriq-core-mux-1.0 + - fsl,qoriq-core-mux-2.0 + - fsl,qoriq-sysclk-1.0 + - fsl,qoriq-sysclk-2.0 + - fsl,qoriq-platform-pll-1.0 + - fsl,qoriq-platform-pll-2.0 + + reg: + maxItems: 1 + + clocks: + minItems: 1 + maxItems: 4 + + clock-names: + minItems: 1 + maxItems: 4 + + clock-output-names: + minItems: 1 + maxItems: 8 + + '#clock-cells': + minimum: 0 + maximum: 1 + +required: + - compatible + - '#clock-cells' + +additionalProperties: false + +allOf: + - if: + properties: + compatible: + contains: + enum: + - fsl,qoriq-sysclk-1.0 + - fsl,qoriq-sysclk-2.0 + then: + properties: + '#clock-cells': + const: 0 + + - if: + properties: + compatible: + contains: + enum: + - fsl,qoriq-core-pll-1.0 + - fsl,qoriq-core-pll-2.0 + then: + properties: + '#clock-cells': + const: 1 + description: | + * 0 - equal to the PLL frequency + * 1 - equal to the PLL frequency divided by 2 + * 2 - equal to the PLL frequency divided by 4 + diff --git a/Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml new file mode 100644 index 0000000000000..95a3e3b242672 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml @@ -0,0 +1,207 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/fsl,qoriq-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Clock Block on Freescale QorIQ Platforms + +maintainers: + - Frank Li <Frank.Li@xxxxxxx> + +description: | + Freescale QorIQ 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. + + All references to "1.0" and "2.0" refer to the QorIQ chassis version to + which the chip complies. + + Chassis Version Example Chips + --------------- ------------- + 1.0 p4080, p5020, p5040 + 2.0 t4240 + + Clock Provider + + The clockgen node should act as a clock provider, though in older device + trees the children of the clockgen node are the clock providers. + +properties: + compatible: + oneOf: + - items: + - enum: + - fsl,p2041-clockgen + - fsl,p3041-clockgen + - fsl,p4080-clockgen + - fsl,p5020-clockgen + - fsl,p5040-clockgen + - const: fsl,qoriq-clockgen-1.0 + - items: + - enum: + - fsl,t1023-clockgen + - fsl,t1024-clockgen + - fsl,t1040-clockgen + - fsl,t1042-clockgen + - fsl,t2080-clockgen + - fsl,t2081-clockgen + - fsl,t4240-clockgen + - const: fsl,qoriq-clockgen-2.0 + - items: + - enum: + - fsl,b4420-clockgen + - fsl,b4860-clockgen + - const: fsl,b4-clockgen + - items: + - enum: + - fsl,ls1012a-clockgen + - fsl,ls1021a-clockgen + - fsl,ls1028a-clockgen + - fsl,ls1043a-clockgen + - fsl,ls1046a-clockgen + - fsl,ls1088a-clockgen + - fsl,ls2080a-clockgen + - fsl,lx2160a-clockgen + + reg: + maxItems: 1 + + ranges: true + + '#address-cells': + const: 1 + + '#size-cells': + const: 1 + + '#clock-cells': + const: 2 + description: | + The first cell of the clock specifier is the clock type, and the + second cell is the clock index for the specified type. + + Type# Name Index Cell + 0 sysclk must be 0 + 1 cmux index (n in CLKCnCSR) + 2 hwaccel index (n in CLKCGnHWACSR) + 3 fman 0 for fm1, 1 for fm2 + 4 platform pll n=pll/(n+1). For example, when n=1, + that means output_freq=PLL_freq/2. + 5 coreclk must be 0 + + clock-frequency: + description: Input system clock frequency (SYSCLK) + + clocks: + items: + - description: + sysclk may be provided as an input clock. Either clock-frequency + or clocks must be provided. + - description: + A second input clock, called "coreclk", may be provided if + core PLLs are based on a different input clock from the + platform PLL. + minItems: 1 + + clock-names: + items: + - const: sysclk + - const: coreclk + +patternProperties: + '^mux[0-9]@[a-f0-9]+$': + deprecated: true + $ref: fsl,qoriq-clock-legacy.yaml + + '^sysclk(-[a-z0-9]+)?$': + deprecated: true + $ref: fsl,qoriq-clock-legacy.yaml + + '^pll[0-9]@[a-f0-9]+$': + deprecated: true + $ref: fsl,qoriq-clock-legacy.yaml + + '^platform\-pll@[a-f0-9]+$': + deprecated: true + $ref: fsl,qoriq-clock-legacy.yaml + +required: + - compatible + - reg + - '#clock-cells' + +additionalProperties: false + +examples: + - | + /* clock provider example */ + global-utilities@e1000 { + compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0"; + reg = <0xe1000 0x1000>; + clock-frequency = <133333333>; + #clock-cells = <2>; + }; + + - | + /* Legacy example */ + global-utilities@e1000 { + compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0"; + reg = <0xe1000 0x1000>; + ranges = <0x0 0xe1000 0x1000>; + clock-frequency = <133333333>; + #address-cells = <1>; + #size-cells = <1>; + #clock-cells = <2>; + + sysclk: sysclk { + compatible = "fsl,qoriq-sysclk-1.0"; + clock-output-names = "sysclk"; + #clock-cells = <0>; + }; + + pll0: pll0@800 { + compatible = "fsl,qoriq-core-pll-1.0"; + reg = <0x800 0x4>; + #clock-cells = <1>; + clocks = <&sysclk>; + clock-output-names = "pll0", "pll0-div2"; + }; + + pll1: pll1@820 { + compatible = "fsl,qoriq-core-pll-1.0"; + reg = <0x820 0x4>; + #clock-cells = <1>; + clocks = <&sysclk>; + clock-output-names = "pll1", "pll1-div2"; + }; + + mux0: mux0@0 { + compatible = "fsl,qoriq-core-mux-1.0"; + reg = <0x0 0x4>; + #clock-cells = <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 { + compatible = "fsl,qoriq-core-mux-1.0"; + reg = <0x20 0x4>; + #clock-cells = <0>; + clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>; + clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2"; + clock-output-names = "cmux1"; + }; + + platform-pll@c00 { + #clock-cells = <1>; + reg = <0xc00 0x4>; + compatible = "fsl,qoriq-platform-pll-1.0"; + clocks = <&sysclk>; + clock-output-names = "platform-pll", "platform-pll-div2"; + }; + }; diff --git a/Documentation/devicetree/bindings/clock/qoriq-clock.txt b/Documentation/devicetree/bindings/clock/qoriq-clock.txt deleted file mode 100644 index 10119d9ef4b11..0000000000000 --- a/Documentation/devicetree/bindings/clock/qoriq-clock.txt +++ /dev/null @@ -1,212 +0,0 @@ -* Clock Block on Freescale QorIQ Platforms - -Freescale QorIQ 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. - -All references to "1.0" and "2.0" refer to the QorIQ chassis version to -which the chip complies. - -Chassis Version Example Chips ---------------- ------------- -1.0 p4080, p5020, p5040 -2.0 t4240, b4860 - -1. Clock Block Binding - -Required properties: -- compatible: Should contain a chip-specific clock block compatible - string and (if applicable) may contain a chassis-version clock - compatible string. - - Chip-specific strings are of the form "fsl,<chip>-clockgen", such as: - * "fsl,p2041-clockgen" - * "fsl,p3041-clockgen" - * "fsl,p4080-clockgen" - * "fsl,p5020-clockgen" - * "fsl,p5040-clockgen" - * "fsl,t1023-clockgen" - * "fsl,t1024-clockgen" - * "fsl,t1040-clockgen" - * "fsl,t1042-clockgen" - * "fsl,t2080-clockgen" - * "fsl,t2081-clockgen" - * "fsl,t4240-clockgen" - * "fsl,b4420-clockgen" - * "fsl,b4860-clockgen" - * "fsl,ls1012a-clockgen" - * "fsl,ls1021a-clockgen" - * "fsl,ls1028a-clockgen" - * "fsl,ls1043a-clockgen" - * "fsl,ls1046a-clockgen" - * "fsl,ls1088a-clockgen" - * "fsl,ls2080a-clockgen" - * "fsl,lx2160a-clockgen" - Chassis-version 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 - -Optional 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 -- clock-frequency: Input system clock frequency (SYSCLK) -- clocks: If clock-frequency is not specified, sysclk may be provided - as an input clock. Either clock-frequency or clocks must be - provided. - A second input clock, called "coreclk", may be provided if - core PLLs are based on a different input clock from the - platform PLL. -- clock-names: Required if a coreclk is present. Valid names are - "sysclk" and "coreclk". - -2. Clock Provider - -The clockgen node should act as a clock provider, though in older device -trees the children of the clockgen node are the clock providers. - -When the clockgen node is a clock provider, #clock-cells = <2>. -The first cell of the clock specifier is the clock type, and the -second cell is the clock index for the specified type. - - Type# Name Index Cell - 0 sysclk must be 0 - 1 cmux index (n in CLKCnCSR) - 2 hwaccel index (n in CLKCGnHWACSR) - 3 fman 0 for fm1, 1 for fm2 - 4 platform pll n=pll/(n+1). For example, when n=1, - that means output_freq=PLL_freq/2. - 5 coreclk must be 0 - -3. Example - - clockgen: global-utilities@e1000 { - compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0"; - clock-frequency = <133333333>; - reg = <0xe1000 0x1000>; - #clock-cells = <2>; - }; - - fman@400000 { - ... - clocks = <&clockgen 3 0>; - ... - }; -} -4. Legacy Child Nodes - -NOTE: These nodes are deprecated. Kernels should continue to support -device trees with these nodes, but new device trees should not use them. - -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. - * "fsl,qoriq-platform-pll-1.0" for the platform PLL clock (v1.0) - * "fsl,qoriq-platform-pll-2.0" for the platform PLL clock (v2.0) -- #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. - -Legacy Example: -/ { - 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"; - }; - - platform-pll: platform-pll@c00 { - #clock-cells = <1>; - reg = <0xc00 0x4>; - compatible = "fsl,qoriq-platform-pll-1.0"; - clocks = <&sysclk>; - clock-output-names = "platform-pll", "platform-pll-div2"; - }; - }; -}; - -Example for legacy clock consumer: - -/ { - cpu0: PowerPC,e5500@0 { - ... - clocks = <&mux0>; - ... - }; -}; -- 2.34.1
