| Tom Rini | 762f85b | 2024-07-20 11:15:10 -0600 | [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/gpu/arm,mali-valhall-csf.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: ARM Mali Valhall GPU |
| 8 | |
| 9 | maintainers: |
| 10 | - Liviu Dudau <liviu.dudau@arm.com> |
| 11 | - Boris Brezillon <boris.brezillon@collabora.com> |
| 12 | |
| 13 | properties: |
| 14 | $nodename: |
| 15 | pattern: '^gpu@[a-f0-9]+$' |
| 16 | |
| 17 | compatible: |
| 18 | oneOf: |
| 19 | - items: |
| 20 | - enum: |
| 21 | - rockchip,rk3588-mali |
| 22 | - const: arm,mali-valhall-csf # Mali Valhall GPU model/revision is fully discoverable |
| 23 | |
| 24 | reg: |
| 25 | maxItems: 1 |
| 26 | |
| 27 | interrupts: |
| 28 | items: |
| 29 | - description: Job interrupt |
| 30 | - description: MMU interrupt |
| 31 | - description: GPU interrupt |
| 32 | |
| 33 | interrupt-names: |
| 34 | items: |
| 35 | - const: job |
| 36 | - const: mmu |
| 37 | - const: gpu |
| 38 | |
| 39 | clocks: |
| 40 | minItems: 1 |
| 41 | maxItems: 3 |
| 42 | |
| 43 | clock-names: |
| 44 | minItems: 1 |
| 45 | items: |
| 46 | - const: core |
| 47 | - const: coregroup |
| 48 | - const: stacks |
| 49 | |
| 50 | mali-supply: true |
| 51 | |
| 52 | operating-points-v2: true |
| 53 | opp-table: |
| 54 | type: object |
| 55 | |
| 56 | power-domains: |
| 57 | minItems: 1 |
| 58 | maxItems: 5 |
| 59 | |
| 60 | power-domain-names: |
| 61 | minItems: 1 |
| 62 | maxItems: 5 |
| 63 | |
| 64 | sram-supply: true |
| 65 | |
| 66 | "#cooling-cells": |
| 67 | const: 2 |
| 68 | |
| 69 | dynamic-power-coefficient: |
| 70 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 71 | description: |
| 72 | A u32 value that represents the running time dynamic |
| 73 | power coefficient in units of uW/MHz/V^2. The |
| 74 | coefficient can either be calculated from power |
| 75 | measurements or derived by analysis. |
| 76 | |
| 77 | The dynamic power consumption of the GPU is |
| 78 | proportional to the square of the Voltage (V) and |
| 79 | the clock frequency (f). The coefficient is used to |
| 80 | calculate the dynamic power as below - |
| 81 | |
| 82 | Pdyn = dynamic-power-coefficient * V^2 * f |
| 83 | |
| 84 | where voltage is in V, frequency is in MHz. |
| 85 | |
| 86 | dma-coherent: true |
| 87 | |
| 88 | required: |
| 89 | - compatible |
| 90 | - reg |
| 91 | - interrupts |
| 92 | - interrupt-names |
| 93 | - clocks |
| 94 | - mali-supply |
| 95 | |
| 96 | additionalProperties: false |
| 97 | |
| 98 | allOf: |
| 99 | - if: |
| 100 | properties: |
| 101 | compatible: |
| 102 | contains: |
| 103 | const: rockchip,rk3588-mali |
| 104 | then: |
| 105 | properties: |
| 106 | clocks: |
| 107 | minItems: 3 |
| 108 | power-domains: |
| 109 | maxItems: 1 |
| 110 | power-domain-names: false |
| 111 | |
| 112 | examples: |
| 113 | - | |
| 114 | #include <dt-bindings/clock/rockchip,rk3588-cru.h> |
| 115 | #include <dt-bindings/interrupt-controller/irq.h> |
| 116 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 117 | #include <dt-bindings/power/rk3588-power.h> |
| 118 | |
| 119 | gpu: gpu@fb000000 { |
| 120 | compatible = "rockchip,rk3588-mali", "arm,mali-valhall-csf"; |
| 121 | reg = <0xfb000000 0x200000>; |
| 122 | interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH 0>, |
| 123 | <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH 0>, |
| 124 | <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH 0>; |
| 125 | interrupt-names = "job", "mmu", "gpu"; |
| 126 | clock-names = "core", "coregroup", "stacks"; |
| 127 | clocks = <&cru CLK_GPU>, <&cru CLK_GPU_COREGROUP>, |
| 128 | <&cru CLK_GPU_STACKS>; |
| 129 | power-domains = <&power RK3588_PD_GPU>; |
| 130 | operating-points-v2 = <&gpu_opp_table>; |
| 131 | mali-supply = <&vdd_gpu_s0>; |
| 132 | sram-supply = <&vdd_gpu_mem_s0>; |
| 133 | |
| 134 | gpu_opp_table: opp-table { |
| 135 | compatible = "operating-points-v2"; |
| 136 | opp-300000000 { |
| 137 | opp-hz = /bits/ 64 <300000000>; |
| 138 | opp-microvolt = <675000 675000 850000>; |
| 139 | }; |
| 140 | opp-400000000 { |
| 141 | opp-hz = /bits/ 64 <400000000>; |
| 142 | opp-microvolt = <675000 675000 850000>; |
| 143 | }; |
| 144 | }; |
| 145 | }; |
| 146 | |
| 147 | ... |