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|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/ingenic,cgu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Ingenic SoCs CGU devicetree bindings
description: |
The CGU in an Ingenic SoC provides all the clocks generated on-chip. It
typically includes a variety of PLLs, multiplexers, dividers & gates in order
to provide many different clock signals derived from only 2 external source
clocks.
maintainers:
- Paul Cercueil <paul@crapouillou.net>
select:
properties:
compatible:
contains:
enum:
- ingenic,jz4740-cgu
- ingenic,jz4725b-cgu
- ingenic,jz4770-cgu
- ingenic,jz4780-cgu
- ingenic,x1000-cgu
- ingenic,x1830-cgu
required:
- compatible
properties:
$nodename:
pattern: "^clock-controller@[0-9a-f]+$"
"#address-cells":
const: 1
"#size-cells":
const: 1
"#clock-cells":
const: 1
ranges: true
compatible:
items:
- enum:
- ingenic,jz4740-cgu
- ingenic,jz4725b-cgu
- ingenic,jz4770-cgu
- ingenic,jz4780-cgu
- ingenic,x1000-cgu
- ingenic,x1830-cgu
- const: simple-mfd
minItems: 1
reg:
maxItems: 1
clocks:
items:
- description: External oscillator clock
- description: Internal 32 kHz RTC clock
clock-names:
items:
- const: ext
- enum:
- rtc
- osc32k # Different name, same clock
assigned-clocks:
minItems: 1
maxItems: 64
assigned-clock-parents:
minItems: 1
maxItems: 64
assigned-clock-rates:
minItems: 1
maxItems: 64
required:
- "#clock-cells"
- compatible
- reg
- clocks
- clock-names
patternProperties:
"^usb-phy@[a-f0-9]+$":
allOf: [ $ref: "../usb/ingenic,jz4770-phy.yaml#" ]
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/jz4770-cgu.h>
cgu: clock-controller@10000000 {
compatible = "ingenic,jz4770-cgu", "simple-mfd";
reg = <0x10000000 0x100>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x10000000 0x100>;
clocks = <&ext>, <&osc32k>;
clock-names = "ext", "osc32k";
#clock-cells = <1>;
otg_phy: usb-phy@3c {
compatible = "ingenic,jz4770-phy";
reg = <0x3c 0x10>;
clocks = <&cgu JZ4770_CLK_OTG_PHY>;
vcc-supply = <&ldo5>;
#phy-cells = <0>;
};
};
|
