| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/watchdog/marvell,cn10624-wdt.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Marvell Global Timer (GTI) system watchdog |
| 8 | |
| 9 | maintainers: |
| 10 | - Bharat Bhushan <bbhushan2@marvell.com> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: watchdog.yaml# |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| 17 | oneOf: |
| 18 | - enum: |
| 19 | - marvell,cn9670-wdt |
| 20 | - marvell,cn10624-wdt |
| 21 | |
| 22 | - items: |
| 23 | - enum: |
| 24 | - marvell,cn9880-wdt |
| 25 | - marvell,cnf9535-wdt |
| 26 | - const: marvell,cn9670-wdt |
| 27 | |
| 28 | - items: |
| 29 | - enum: |
| 30 | - marvell,cn10308-wdt |
| 31 | - marvell,cnf10518-wdt |
| 32 | - const: marvell,cn10624-wdt |
| 33 | |
| 34 | reg: |
| 35 | maxItems: 1 |
| 36 | |
| 37 | interrupts: |
| 38 | maxItems: 1 |
| 39 | |
| 40 | clocks: |
| 41 | maxItems: 1 |
| 42 | |
| 43 | clock-names: |
| 44 | items: |
| 45 | - const: refclk |
| 46 | |
| 47 | marvell,wdt-timer-index: |
| 48 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 49 | minimum: 0 |
| 50 | maximum: 63 |
| 51 | description: |
| 52 | An SoC have many timers (up to 64), firmware can reserve one or more timer |
| 53 | for some other use case and configures one of the global timer as watchdog |
| 54 | timer. Firmware will update this field with the timer number configured |
| 55 | as watchdog timer. |
| 56 | |
| 57 | required: |
| 58 | - compatible |
| 59 | - reg |
| 60 | - interrupts |
| 61 | - clocks |
| 62 | - clock-names |
| 63 | |
| 64 | unevaluatedProperties: false |
| 65 | |
| 66 | examples: |
| 67 | - | |
| 68 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 69 | soc { |
| 70 | #address-cells = <2>; |
| 71 | #size-cells = <2>; |
| 72 | |
| 73 | watchdog@802000040000 { |
| 74 | compatible = "marvell,cn9670-wdt"; |
| 75 | reg = <0x00008020 0x00040000 0x00000000 0x00020000>; |
| 76 | interrupts = <GIC_SPI 38 IRQ_TYPE_EDGE_RISING>; |
| 77 | clocks = <&sclk>; |
| 78 | clock-names = "refclk"; |
| 79 | marvell,wdt-timer-index = <63>; |
| 80 | }; |
| 81 | }; |
| 82 | |
| 83 | ... |