| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/watchdog/marvell,cn10624-wdt.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Marvell Global Timer (GTI) system watchdog |
| |
| maintainers: |
| - Bharat Bhushan <bbhushan2@marvell.com> |
| |
| allOf: |
| - $ref: watchdog.yaml# |
| |
| properties: |
| compatible: |
| oneOf: |
| - enum: |
| - marvell,cn9670-wdt |
| - marvell,cn10624-wdt |
| |
| - items: |
| - enum: |
| - marvell,cn9880-wdt |
| - marvell,cnf9535-wdt |
| - const: marvell,cn9670-wdt |
| |
| - items: |
| - enum: |
| - marvell,cn10308-wdt |
| - marvell,cnf10518-wdt |
| - const: marvell,cn10624-wdt |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| maxItems: 1 |
| |
| clock-names: |
| items: |
| - const: refclk |
| |
| marvell,wdt-timer-index: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 0 |
| maximum: 63 |
| description: |
| An SoC have many timers (up to 64), firmware can reserve one or more timer |
| for some other use case and configures one of the global timer as watchdog |
| timer. Firmware will update this field with the timer number configured |
| as watchdog timer. |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| - clocks |
| - clock-names |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| soc { |
| #address-cells = <2>; |
| #size-cells = <2>; |
| |
| watchdog@802000040000 { |
| compatible = "marvell,cn9670-wdt"; |
| reg = <0x00008020 0x00040000 0x00000000 0x00020000>; |
| interrupts = <GIC_SPI 38 IRQ_TYPE_EDGE_RISING>; |
| clocks = <&sclk>; |
| clock-names = "refclk"; |
| marvell,wdt-timer-index = <63>; |
| }; |
| }; |
| |
| ... |
