1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/clock/airoha,en7523-scu.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: EN7523 Clock Device Tree Bindings 8 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 the 18 PLL controller, which provides clocks for the CPU, the bus and 19 other SoC internal peripherals. 20 21 Each clock is assigned an identifier and client nodes use this identifier 22 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 - const: airoha,en7523-scu 33 34 reg: 35 maxItems: 2 36 37 "#clock-cells": 38 description: 39 The first cell indicates the clock number, see [1] for available 40 clocks. 41 const: 1 42 43required: 44 - compatible 45 - reg 46 - '#clock-cells' 47 48additionalProperties: false 49 50examples: 51 - | 52 #include <dt-bindings/clock/en7523-clk.h> 53 scu: system-controller@1fa20000 { 54 compatible = "airoha,en7523-scu"; 55 reg = <0x1fa20000 0x400>, 56 <0x1fb00000 0x1000>; 57 #clock-cells = <1>; 58 }; 59