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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/timer/ingenic,tcu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Ingenic SoCs Timer/Counter Unit (TCU) devicetree bindings
description: |
For a description of the TCU hardware and drivers, have a look at
Documentation/mips/ingenic-tcu.rst.
maintainers:
- Paul Cercueil <paul@crapouillou.net>
select:
properties:
compatible:
contains:
enum:
- ingenic,jz4740-tcu
- ingenic,jz4725b-tcu
- ingenic,jz4770-tcu
- ingenic,jz4780-tcu
- ingenic,x1000-tcu
required:
- compatible
properties:
$nodename:
pattern: "^timer@[0-9a-f]+$"
"#address-cells":
const: 1
"#size-cells":
const: 1
"#clock-cells":
const: 1
"#interrupt-cells":
const: 1
interrupt-controller: true
ranges: true
compatible:
oneOf:
- items:
- enum:
- ingenic,jz4740-tcu
- ingenic,jz4725b-tcu
- ingenic,jz4770-tcu
- ingenic,x1000-tcu
- const: simple-mfd
- items:
- const: ingenic,jz4780-tcu
- const: ingenic,jz4770-tcu
- const: simple-mfd
reg:
maxItems: 1
clocks:
items:
- description: RTC clock
- description: EXT clock
- description: PCLK clock
- description: TCU clock
minItems: 3
clock-names:
items:
- const: rtc
- const: ext
- const: pclk
- const: tcu
minItems: 3
interrupts:
items:
- description: TCU0 interrupt
- description: TCU1 interrupt
- description: TCU2 interrupt
minItems: 1
assigned-clocks:
minItems: 1
maxItems: 8
assigned-clock-parents:
minItems: 1
maxItems: 8
assigned-clock-rates:
minItems: 1
maxItems: 8
ingenic,pwm-channels-mask:
description: Bitmask of TCU channels reserved for PWM use.
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0x00
maximum: 0xff
default: 0xfc
patternProperties:
"^watchdog@[a-f0-9]+$":
type: object
$ref: ../watchdog/watchdog.yaml#
properties:
compatible:
oneOf:
- enum:
- ingenic,jz4740-watchdog
- ingenic,jz4780-watchdog
- items:
- enum:
- ingenic,jz4770-watchdog
- ingenic,jz4725b-watchdog
- const: ingenic,jz4740-watchdog
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
const: wdt
required:
- compatible
- reg
- clocks
- clock-names
"^pwm@[a-f0-9]+$":
type: object
$ref: ../pwm/pwm.yaml#
properties:
compatible:
oneOf:
- enum:
- ingenic,jz4740-pwm
- ingenic,jz4725b-pwm
- items:
- enum:
- ingenic,jz4770-pwm
- ingenic,jz4780-pwm
- const: ingenic,jz4740-pwm
reg:
maxItems: 1
clocks:
minItems: 6
maxItems: 8
clock-names:
items:
- const: timer0
- const: timer1
- const: timer2
- const: timer3
- const: timer4
- const: timer5
- const: timer6
- const: timer7
minItems: 6
required:
- compatible
- reg
- clocks
- clock-names
"^timer@[a-f0-9]+$":
type: object
properties:
compatible:
oneOf:
- enum:
- ingenic,jz4725b-ost
- ingenic,jz4770-ost
- items:
- const: ingenic,jz4780-ost
- const: ingenic,jz4770-ost
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
const: ost
interrupts:
maxItems: 1
required:
- compatible
- reg
- clocks
- clock-names
- interrupts
additionalProperties: false
required:
- "#clock-cells"
- "#interrupt-cells"
- interrupt-controller
- compatible
- reg
- clocks
- clock-names
- interrupts
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/jz4770-cgu.h>
#include <dt-bindings/clock/ingenic,tcu.h>
tcu: timer@10002000 {
compatible = "ingenic,jz4770-tcu", "simple-mfd";
reg = <0x10002000 0x1000>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x10002000 0x1000>;
#clock-cells = <1>;
clocks = <&cgu JZ4770_CLK_RTC>,
<&cgu JZ4770_CLK_EXT>,
<&cgu JZ4770_CLK_PCLK>;
clock-names = "rtc", "ext", "pclk";
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&intc>;
interrupts = <27 26 25>;
watchdog: watchdog@0 {
compatible = "ingenic,jz4770-watchdog", "ingenic,jz4740-watchdog";
reg = <0x0 0xc>;
clocks = <&tcu TCU_CLK_WDT>;
clock-names = "wdt";
};
pwm: pwm@40 {
compatible = "ingenic,jz4770-pwm", "ingenic,jz4740-pwm";
reg = <0x40 0x80>;
#pwm-cells = <3>;
clocks = <&tcu TCU_CLK_TIMER0>,
<&tcu TCU_CLK_TIMER1>,
<&tcu TCU_CLK_TIMER2>,
<&tcu TCU_CLK_TIMER3>,
<&tcu TCU_CLK_TIMER4>,
<&tcu TCU_CLK_TIMER5>,
<&tcu TCU_CLK_TIMER6>,
<&tcu TCU_CLK_TIMER7>;
clock-names = "timer0", "timer1", "timer2", "timer3",
"timer4", "timer5", "timer6", "timer7";
};
ost: timer@e0 {
compatible = "ingenic,jz4770-ost";
reg = <0xe0 0x20>;
clocks = <&tcu TCU_CLK_OST>;
clock-names = "ost";
interrupts = <15>;
};
};
|
