Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/gpu/arm,mali-bifrost.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: ARM Mali Bifrost GPU |
| 8 | |
| 9 | maintainers: |
| 10 | - Rob Herring <robh@kernel.org> |
| 11 | |
| 12 | properties: |
| 13 | $nodename: |
| 14 | pattern: '^gpu@[a-f0-9]+$' |
| 15 | |
| 16 | compatible: |
| 17 | oneOf: |
| 18 | - items: |
| 19 | - enum: |
| 20 | - amlogic,meson-g12a-mali |
| 21 | - mediatek,mt8183-mali |
| 22 | - mediatek,mt8183b-mali |
| 23 | - mediatek,mt8186-mali |
| 24 | - realtek,rtd1619-mali |
| 25 | - renesas,r9a07g044-mali |
| 26 | - renesas,r9a07g054-mali |
| 27 | - rockchip,px30-mali |
| 28 | - rockchip,rk3568-mali |
| 29 | - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable |
| 30 | - items: |
| 31 | - enum: |
| 32 | - mediatek,mt8195-mali |
| 33 | - const: mediatek,mt8192-mali |
| 34 | - const: arm,mali-valhall-jm # Mali Valhall GPU model/revision is fully discoverable |
| 35 | - items: |
| 36 | - enum: |
| 37 | - mediatek,mt8192-mali |
| 38 | - const: arm,mali-valhall-jm # Mali Valhall GPU model/revision is fully discoverable |
| 39 | |
| 40 | reg: |
| 41 | maxItems: 1 |
| 42 | |
| 43 | interrupts: |
| 44 | minItems: 3 |
| 45 | items: |
| 46 | - description: Job interrupt |
| 47 | - description: MMU interrupt |
| 48 | - description: GPU interrupt |
| 49 | - description: Event interrupt |
| 50 | |
| 51 | interrupt-names: |
| 52 | minItems: 3 |
| 53 | items: |
| 54 | - const: job |
| 55 | - const: mmu |
| 56 | - const: gpu |
| 57 | - const: event |
| 58 | |
| 59 | clocks: |
| 60 | minItems: 1 |
| 61 | maxItems: 3 |
| 62 | |
| 63 | clock-names: true |
| 64 | |
| 65 | mali-supply: true |
| 66 | |
| 67 | sram-supply: true |
| 68 | |
| 69 | operating-points-v2: true |
| 70 | |
| 71 | power-domains: |
| 72 | minItems: 1 |
| 73 | maxItems: 5 |
| 74 | |
| 75 | power-domain-names: |
| 76 | minItems: 2 |
| 77 | maxItems: 5 |
| 78 | |
| 79 | resets: |
| 80 | minItems: 1 |
| 81 | maxItems: 3 |
| 82 | |
| 83 | reset-names: true |
| 84 | |
| 85 | "#cooling-cells": |
| 86 | const: 2 |
| 87 | |
| 88 | dynamic-power-coefficient: |
| 89 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 90 | description: |
| 91 | A u32 value that represents the running time dynamic |
| 92 | power coefficient in units of uW/MHz/V^2. The |
| 93 | coefficient can either be calculated from power |
| 94 | measurements or derived by analysis. |
| 95 | |
| 96 | The dynamic power consumption of the GPU is |
| 97 | proportional to the square of the Voltage (V) and |
| 98 | the clock frequency (f). The coefficient is used to |
| 99 | calculate the dynamic power as below - |
| 100 | |
| 101 | Pdyn = dynamic-power-coefficient * V^2 * f |
| 102 | |
| 103 | where voltage is in V, frequency is in MHz. |
| 104 | |
| 105 | dma-coherent: true |
| 106 | |
| 107 | nvmem-cell-names: |
| 108 | items: |
| 109 | - const: speed-bin |
| 110 | |
| 111 | nvmem-cells: |
| 112 | maxItems: 1 |
| 113 | |
| 114 | required: |
| 115 | - compatible |
| 116 | - reg |
| 117 | - interrupts |
| 118 | - interrupt-names |
| 119 | - clocks |
| 120 | |
| 121 | additionalProperties: false |
| 122 | |
| 123 | allOf: |
| 124 | - if: |
| 125 | properties: |
| 126 | compatible: |
| 127 | contains: |
| 128 | const: amlogic,meson-g12a-mali |
| 129 | then: |
| 130 | properties: |
| 131 | power-domains: |
| 132 | maxItems: 1 |
| 133 | power-domain-names: false |
| 134 | required: |
| 135 | - resets |
| 136 | - if: |
| 137 | properties: |
| 138 | compatible: |
| 139 | contains: |
| 140 | enum: |
| 141 | - renesas,r9a07g044-mali |
| 142 | - renesas,r9a07g054-mali |
| 143 | then: |
| 144 | properties: |
| 145 | interrupts: |
| 146 | minItems: 4 |
| 147 | interrupt-names: |
| 148 | minItems: 4 |
| 149 | clocks: |
| 150 | minItems: 3 |
| 151 | clock-names: |
| 152 | items: |
| 153 | - const: gpu |
| 154 | - const: bus |
| 155 | - const: bus_ace |
| 156 | power-domains: |
| 157 | maxItems: 1 |
| 158 | power-domain-names: false |
| 159 | resets: |
| 160 | minItems: 3 |
| 161 | reset-names: |
| 162 | items: |
| 163 | - const: rst |
| 164 | - const: axi_rst |
| 165 | - const: ace_rst |
| 166 | required: |
| 167 | - clock-names |
| 168 | - power-domains |
| 169 | - resets |
| 170 | - reset-names |
| 171 | - if: |
| 172 | properties: |
| 173 | compatible: |
| 174 | contains: |
| 175 | const: mediatek,mt8183-mali |
| 176 | then: |
| 177 | properties: |
| 178 | power-domains: |
| 179 | minItems: 3 |
| 180 | maxItems: 3 |
| 181 | power-domain-names: |
| 182 | items: |
| 183 | - const: core0 |
| 184 | - const: core1 |
| 185 | - const: core2 |
| 186 | |
| 187 | required: |
| 188 | - sram-supply |
| 189 | - power-domains |
| 190 | - power-domain-names |
| 191 | else: |
| 192 | properties: |
| 193 | sram-supply: false |
| 194 | - if: |
| 195 | properties: |
| 196 | compatible: |
| 197 | contains: |
| 198 | const: mediatek,mt8183b-mali |
| 199 | then: |
| 200 | properties: |
| 201 | power-domains: |
| 202 | minItems: 3 |
| 203 | maxItems: 3 |
| 204 | power-domain-names: |
| 205 | items: |
| 206 | - const: core0 |
| 207 | - const: core1 |
| 208 | - const: core2 |
| 209 | required: |
| 210 | - power-domains |
| 211 | - power-domain-names |
| 212 | - if: |
| 213 | properties: |
| 214 | compatible: |
| 215 | contains: |
| 216 | const: mediatek,mt8186-mali |
| 217 | then: |
| 218 | properties: |
| 219 | power-domains: |
| 220 | minItems: 2 |
| 221 | maxItems: 2 |
| 222 | power-domain-names: |
| 223 | items: |
| 224 | - const: core0 |
| 225 | - const: core1 |
| 226 | required: |
| 227 | - power-domains |
| 228 | - power-domain-names |
| 229 | - if: |
| 230 | properties: |
| 231 | compatible: |
| 232 | contains: |
| 233 | const: mediatek,mt8192-mali |
| 234 | then: |
| 235 | properties: |
| 236 | power-domains: |
| 237 | minItems: 5 |
| 238 | power-domain-names: |
| 239 | items: |
| 240 | - const: core0 |
| 241 | - const: core1 |
| 242 | - const: core2 |
| 243 | - const: core3 |
| 244 | - const: core4 |
| 245 | required: |
| 246 | - power-domains |
| 247 | - power-domain-names |
| 248 | - if: |
| 249 | properties: |
| 250 | compatible: |
| 251 | contains: |
| 252 | const: rockchip,rk3568-mali |
| 253 | then: |
| 254 | properties: |
| 255 | clocks: |
| 256 | minItems: 2 |
| 257 | clock-names: |
| 258 | items: |
| 259 | - const: gpu |
| 260 | - const: bus |
| 261 | power-domains: |
| 262 | maxItems: 1 |
| 263 | power-domain-names: false |
| 264 | required: |
| 265 | - clock-names |
| 266 | |
| 267 | examples: |
| 268 | - | |
| 269 | #include <dt-bindings/interrupt-controller/irq.h> |
| 270 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 271 | |
| 272 | gpu@ffe40000 { |
| 273 | compatible = "amlogic,meson-g12a-mali", "arm,mali-bifrost"; |
| 274 | reg = <0xffe40000 0x10000>; |
| 275 | interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>, |
| 276 | <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>, |
| 277 | <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>; |
| 278 | interrupt-names = "job", "mmu", "gpu"; |
| 279 | clocks = <&clk 1>; |
| 280 | mali-supply = <&vdd_gpu>; |
| 281 | operating-points-v2 = <&gpu_opp_table>; |
| 282 | resets = <&reset 0>, <&reset 1>; |
| 283 | }; |
| 284 | |
| 285 | gpu_opp_table: opp-table { |
| 286 | compatible = "operating-points-v2"; |
| 287 | |
| 288 | opp-533000000 { |
| 289 | opp-hz = /bits/ 64 <533000000>; |
| 290 | opp-microvolt = <1250000>; |
| 291 | }; |
| 292 | opp-450000000 { |
| 293 | opp-hz = /bits/ 64 <450000000>; |
| 294 | opp-microvolt = <1150000>; |
| 295 | }; |
| 296 | opp-400000000 { |
| 297 | opp-hz = /bits/ 64 <400000000>; |
| 298 | opp-microvolt = <1125000>; |
| 299 | }; |
| 300 | opp-350000000 { |
| 301 | opp-hz = /bits/ 64 <350000000>; |
| 302 | opp-microvolt = <1075000>; |
| 303 | }; |
| 304 | opp-266000000 { |
| 305 | opp-hz = /bits/ 64 <266000000>; |
| 306 | opp-microvolt = <1025000>; |
| 307 | }; |
| 308 | opp-160000000 { |
| 309 | opp-hz = /bits/ 64 <160000000>; |
| 310 | opp-microvolt = <925000>; |
| 311 | }; |
| 312 | opp-100000000 { |
| 313 | opp-hz = /bits/ 64 <100000000>; |
| 314 | opp-microvolt = <912500>; |
| 315 | }; |
| 316 | }; |
| 317 | |
| 318 | ... |