| 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/renesas,wdt.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Renesas Watchdog Timer (WDT) Controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Wolfram Sang <wsa+renesas@sang-engineering.com> |
| 11 | - Geert Uytterhoeven <geert+renesas@glider.be> |
| 12 | |
| 13 | properties: |
| 14 | compatible: |
| 15 | oneOf: |
| 16 | - items: |
| 17 | - enum: |
| 18 | - renesas,r7s72100-wdt # RZ/A1 |
| 19 | - renesas,r7s9210-wdt # RZ/A2 |
| 20 | - const: renesas,rza-wdt # RZ/A |
| 21 | |
| 22 | - items: |
| 23 | - enum: |
| 24 | - renesas,r9a06g032-wdt # RZ/N1D |
| 25 | - const: renesas,rzn1-wdt # RZ/N1 |
| 26 | |
| 27 | - items: |
| 28 | - enum: |
| 29 | - renesas,r9a07g043-wdt # RZ/G2UL and RZ/Five |
| 30 | - renesas,r9a07g044-wdt # RZ/G2{L,LC} |
| 31 | - renesas,r9a07g054-wdt # RZ/V2L |
| 32 | - const: renesas,rzg2l-wdt |
| 33 | |
| 34 | - items: |
| 35 | - enum: |
| 36 | - renesas,r9a09g011-wdt # RZ/V2M |
| 37 | - const: renesas,rzv2m-wdt # RZ/V2M |
| 38 | |
| 39 | - items: |
| 40 | - enum: |
| 41 | - renesas,r8a7742-wdt # RZ/G1H |
| 42 | - renesas,r8a7743-wdt # RZ/G1M |
| 43 | - renesas,r8a7744-wdt # RZ/G1N |
| 44 | - renesas,r8a7745-wdt # RZ/G1E |
| 45 | - renesas,r8a77470-wdt # RZ/G1C |
| 46 | - renesas,r8a7790-wdt # R-Car H2 |
| 47 | - renesas,r8a7791-wdt # R-Car M2-W |
| 48 | - renesas,r8a7792-wdt # R-Car V2H |
| 49 | - renesas,r8a7793-wdt # R-Car M2-N |
| 50 | - renesas,r8a7794-wdt # R-Car E2 |
| 51 | - const: renesas,rcar-gen2-wdt # R-Car Gen2 and RZ/G1 |
| 52 | |
| 53 | - items: |
| 54 | - enum: |
| 55 | - renesas,r8a774a1-wdt # RZ/G2M |
| 56 | - renesas,r8a774b1-wdt # RZ/G2N |
| 57 | - renesas,r8a774c0-wdt # RZ/G2E |
| 58 | - renesas,r8a774e1-wdt # RZ/G2H |
| 59 | - renesas,r8a7795-wdt # R-Car H3 |
| 60 | - renesas,r8a7796-wdt # R-Car M3-W |
| 61 | - renesas,r8a77961-wdt # R-Car M3-W+ |
| 62 | - renesas,r8a77965-wdt # R-Car M3-N |
| 63 | - renesas,r8a77970-wdt # R-Car V3M |
| 64 | - renesas,r8a77980-wdt # R-Car V3H |
| 65 | - renesas,r8a77990-wdt # R-Car E3 |
| 66 | - renesas,r8a77995-wdt # R-Car D3 |
| 67 | - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2 |
| 68 | |
| 69 | - items: |
| 70 | - enum: |
| 71 | - renesas,r8a779a0-wdt # R-Car V3U |
| 72 | - renesas,r8a779f0-wdt # R-Car S4-8 |
| 73 | - renesas,r8a779g0-wdt # R-Car V4H |
| 74 | - const: renesas,rcar-gen4-wdt # R-Car Gen4 |
| 75 | |
| 76 | reg: |
| 77 | maxItems: 1 |
| 78 | |
| 79 | interrupts: |
| 80 | minItems: 1 |
| 81 | items: |
| 82 | - description: Timeout |
| 83 | - description: Parity error |
| 84 | |
| 85 | interrupt-names: |
| 86 | minItems: 1 |
| 87 | items: |
| 88 | - const: wdt |
| 89 | - const: perrout |
| 90 | |
| 91 | clocks: |
| 92 | minItems: 1 |
| 93 | items: |
| 94 | - description: Register access clock |
| 95 | - description: Main clock |
| 96 | |
| 97 | clock-names: |
| 98 | minItems: 1 |
| 99 | items: |
| 100 | - const: pclk |
| 101 | - const: oscclk |
| 102 | |
| 103 | power-domains: |
| 104 | maxItems: 1 |
| 105 | |
| 106 | resets: |
| 107 | maxItems: 1 |
| 108 | |
| 109 | timeout-sec: true |
| 110 | |
| 111 | required: |
| 112 | - compatible |
| 113 | - reg |
| 114 | - interrupts |
| 115 | - clocks |
| 116 | |
| 117 | allOf: |
| 118 | - $ref: watchdog.yaml# |
| 119 | |
| 120 | - if: |
| 121 | not: |
| 122 | properties: |
| 123 | compatible: |
| 124 | contains: |
| 125 | enum: |
| 126 | - renesas,rza-wdt |
| 127 | - renesas,rzn1-wdt |
| 128 | then: |
| 129 | required: |
| 130 | - power-domains |
| 131 | - resets |
| 132 | |
| 133 | - if: |
| 134 | properties: |
| 135 | compatible: |
| 136 | contains: |
| 137 | enum: |
| 138 | - renesas,rzg2l-wdt |
| 139 | - renesas,rzv2m-wdt |
| 140 | then: |
| 141 | properties: |
| 142 | clocks: |
| 143 | minItems: 2 |
| 144 | clock-names: |
| 145 | minItems: 2 |
| 146 | required: |
| 147 | - clock-names |
| 148 | else: |
| 149 | properties: |
| 150 | clocks: |
| 151 | maxItems: 1 |
| 152 | |
| 153 | - if: |
| 154 | properties: |
| 155 | compatible: |
| 156 | contains: |
| 157 | enum: |
| 158 | - renesas,rzg2l-wdt |
| 159 | then: |
| 160 | properties: |
| 161 | interrupts: |
| 162 | minItems: 2 |
| 163 | interrupt-names: |
| 164 | minItems: 2 |
| 165 | required: |
| 166 | - interrupt-names |
| 167 | else: |
| 168 | properties: |
| 169 | interrupts: |
| 170 | maxItems: 1 |
| 171 | |
| 172 | additionalProperties: false |
| 173 | |
| 174 | examples: |
| 175 | - | |
| 176 | #include <dt-bindings/clock/r8a7795-cpg-mssr.h> |
| 177 | #include <dt-bindings/power/r8a7795-sysc.h> |
| 178 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 179 | wdt0: watchdog@e6020000 { |
| 180 | compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt"; |
| 181 | reg = <0xe6020000 0x0c>; |
| 182 | interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>; |
| 183 | clocks = <&cpg CPG_MOD 402>; |
| 184 | power-domains = <&sysc R8A7795_PD_ALWAYS_ON>; |
| 185 | resets = <&cpg 402>; |
| 186 | timeout-sec = <60>; |
| 187 | }; |