0001 # SPDX-License-Identifier: GPL-2.0
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/clock/milbeaut-clock.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Milbeaut SoCs Clock Controller Binding
0008
0009 maintainers:
0010 - Taichi Sugaya <sugaya.taichi@socionext.com>
0011
0012 description: |
0013 Milbeaut SoCs Clock controller is an integrated clock controller, which
0014 generates and supplies to all modules.
0015
0016 This binding uses common clock bindings
0017 [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
0018
0019 properties:
0020 compatible:
0021 enum:
0022 - socionext,milbeaut-m10v-ccu
0023
0024 reg:
0025 maxItems: 1
0026
0027 clocks:
0028 maxItems: 1
0029 description: external clock
0030
0031 '#clock-cells':
0032 const: 1
0033
0034 required:
0035 - compatible
0036 - reg
0037 - clocks
0038 - '#clock-cells'
0039
0040 additionalProperties: false
0041
0042 examples:
0043 # Clock controller node:
0044 - |
0045 m10v-clk-ctrl@1d021000 {
0046 compatible = "socionext,milbeaut-m10v-ccu";
0047 reg = <0x1d021000 0x4000>;
0048 #clock-cells = <1>;
0049 clocks = <&clki40mhz>;
0050 };
0051
0052 # Required an external clock for Clock controller node:
0053 - |
0054 clocks {
0055 clki40mhz: clki40mhz {
0056 compatible = "fixed-clock";
0057 #clock-cells = <0>;
0058 clock-frequency = <40000000>;
0059 };
0060 /* other clocks */
0061 };
0062
0063 # The clock consumer shall specify the desired clock-output of the clock
0064 # controller as below by specifying output-id in its "clk" phandle cell.
0065 # 2: uart
0066 # 4: 32-bit timer
0067 # 7: UHS-I/II
0068 - |
0069 serial@1e700010 {
0070 compatible = "socionext,milbeaut-usio-uart";
0071 reg = <0x1e700010 0x10>;
0072 interrupts = <0 141 0x4>, <0 149 0x4>;
0073 interrupt-names = "rx", "tx";
0074 clocks = <&clk 2>;
0075 };
0076
0077 ...
