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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/clock/airoha,en7523-scu.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: EN7523 Clock8 9maintainers:10 - Felix Fietkau <nbd@nbd.name>11 - John Crispin <nbd@nbd.name>12 13description: |14 This node defines the System Control Unit of the EN7523 SoC,15 a collection of registers configuring many different aspects of the SoC.16 17 The clock driver uses it to read and configure settings of the18 PLL controller, which provides clocks for the CPU, the bus and19 other SoC internal peripherals.20 21 Each clock is assigned an identifier and client nodes use this identifier22 to specify which clock they consume.23 24 All these identifiers can be found in:25 [1]: <include/dt-bindings/clock/en7523-clk.h>.26 27 The clocks are provided inside a system controller node.28 29properties:30 compatible:31 items:32 - enum:33 - airoha,en7523-scu34 - airoha,en7581-scu35 36 reg:37 minItems: 238 maxItems: 439 40 "#clock-cells":41 description:42 The first cell indicates the clock number, see [1] for available43 clocks.44 const: 145 46 '#reset-cells':47 description: ID of the controller reset line48 const: 149 50required:51 - compatible52 - reg53 - '#clock-cells'54 55allOf:56 - if:57 properties:58 compatible:59 const: airoha,en7523-scu60 then:61 properties:62 reg:63 items:64 - description: scu base address65 - description: misc scu base address66 67 '#reset-cells': false68 69 - if:70 properties:71 compatible:72 const: airoha,en7581-scu73 then:74 properties:75 reg:76 items:77 - description: scu base address78 - description: misc scu base address79 - description: reset base address80 - description: pb scu base address81 82additionalProperties: false83 84examples:85 - |86 #include <dt-bindings/clock/en7523-clk.h>87 scu: system-controller@1fa20000 {88 compatible = "airoha,en7523-scu";89 reg = <0x1fa20000 0x400>,90 <0x1fb00000 0x1000>;91 #clock-cells = <1>;92 };93 94 - |95 soc {96 #address-cells = <2>;97 #size-cells = <2>;98 99 scuclk: clock-controller@1fa20000 {100 compatible = "airoha,en7581-scu";101 reg = <0x0 0x1fa20000 0x0 0x400>,102 <0x0 0x1fb00000 0x0 0x90>,103 <0x0 0x1fb00830 0x0 0x8>,104 <0x0 0x1fbe3400 0x0 0xfc>;105 #clock-cells = <1>;106 #reset-cells = <1>;107 };108 };109