| 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/timer/ti,timer-dm.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: TI dual-mode timer |
| 8 | |
| 9 | maintainers: |
| 10 | - Tony Lindgren <tony@atomide.com> |
| 11 | |
| 12 | description: | |
| 13 | The TI dual-mode timer is a general purpose timer with PWM capabilities. |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| 17 | oneOf: |
| 18 | - items: |
| 19 | - enum: |
| 20 | - ti,am335x-timer |
| 21 | - ti,am335x-timer-1ms |
| 22 | - ti,am654-timer |
| 23 | - ti,dm814-timer |
| 24 | - ti,dm816-timer |
| 25 | - ti,omap2420-timer |
| 26 | - ti,omap3430-timer |
| 27 | - ti,omap4430-timer |
| 28 | - ti,omap5430-timer |
| 29 | - items: |
| 30 | - const: ti,am4372-timer |
| 31 | - const: ti,am335x-timer |
| 32 | - items: |
| 33 | - const: ti,am4372-timer-1ms |
| 34 | - const: ti,am335x-timer-1ms |
| 35 | |
| 36 | reg: |
| 37 | items: |
| 38 | - description: IO address |
| 39 | - description: L3 to L4 mapping for omap4/5 L4 ABE |
| 40 | minItems: 1 |
| 41 | |
| 42 | clocks: |
| 43 | items: |
| 44 | - description: Functional clock |
| 45 | - description: System clock for omap4/5 and dra7 |
| 46 | minItems: 1 |
| 47 | |
| 48 | clock-names: |
| 49 | items: |
| 50 | - const: fck |
| 51 | - const: timer_sys_ck |
| 52 | minItems: 1 |
| 53 | |
| 54 | power-domains: |
| 55 | description: |
| 56 | Power domain if available |
| 57 | maxItems: 1 |
| 58 | |
| 59 | interrupts: |
| 60 | description: |
| 61 | Interrupt if available. The timer PWM features may be usable |
| 62 | in a limited way even without interrupts. |
| 63 | maxItems: 1 |
| 64 | |
| 65 | ti,timer-alwon: |
| 66 | description: |
| 67 | Timer is always enabled when the SoC is powered. Note that some SoCs like |
| 68 | am335x can suspend to PM coprocessor RTC only mode and in that case the |
| 69 | SoC power is cut including timers. |
| 70 | type: boolean |
| 71 | |
| 72 | ti,timer-dsp: |
| 73 | description: |
| 74 | Timer is routable to the DSP in addition to the operating system. |
| 75 | type: boolean |
| 76 | |
| 77 | ti,timer-pwm: |
| 78 | description: |
| 79 | Timer has been wired for PWM capability. |
| 80 | type: boolean |
| 81 | |
| 82 | ti,timer-secure: |
| 83 | description: |
| 84 | Timer access has been limited to secure mode only. |
| 85 | type: boolean |
| 86 | |
| 87 | ti,hwmods: |
| 88 | description: |
| 89 | Name of the HWMOD associated with timer. This is for legacy |
| 90 | omap2/3 platforms only. |
| 91 | $ref: /schemas/types.yaml#/definitions/string |
| 92 | deprecated: true |
| 93 | |
| 94 | required: |
| 95 | - compatible |
| 96 | - reg |
| 97 | |
| 98 | additionalProperties: false |
| 99 | |
| 100 | allOf: |
| 101 | - if: |
| 102 | properties: |
| 103 | compatible: |
| 104 | contains: |
| 105 | const: ti,am654-timer |
| 106 | then: |
| 107 | required: |
| 108 | - power-domains |
| 109 | else: |
| 110 | required: |
| 111 | - interrupts |
| 112 | |
| 113 | - if: |
| 114 | not: |
| 115 | properties: |
| 116 | compatible: |
| 117 | contains: |
| 118 | enum: |
| 119 | - ti,omap3430-timer |
| 120 | - ti,omap4430-timer |
| 121 | - ti,omap5430-timer |
| 122 | then: |
| 123 | properties: |
| 124 | reg: |
| 125 | maxItems: 1 |
| 126 | clocks: |
| 127 | maxItems: 1 |
| 128 | clock-names: |
| 129 | maxItems: 1 |
| 130 | |
| 131 | - if: |
| 132 | properties: |
| 133 | compatible: |
| 134 | contains: |
| 135 | enum: |
| 136 | - ti,dm814-timer |
| 137 | - ti,dm816-timer |
| 138 | - ti,omap2420-timer |
| 139 | - ti,omap3430-timer |
| 140 | then: |
| 141 | properties: |
| 142 | ti,hwmods: |
| 143 | items: |
| 144 | - pattern: "^timer([1-9]|1[0-2])$" |
| 145 | else: |
| 146 | properties: |
| 147 | ti,hwmods: false |
| 148 | |
| 149 | examples: |
| 150 | - | |
| 151 | timer1: timer@0 { |
| 152 | compatible = "ti,am335x-timer-1ms"; |
| 153 | reg = <0x0 0x400>; |
| 154 | interrupts = <67>; |
| 155 | ti,timer-alwon; |
| 156 | clocks = <&timer1_fck>; |
| 157 | clock-names = "fck"; |
| 158 | }; |
| 159 | ... |