| 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/bus/nvidia,tegra210-aconnect.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: NVIDIA Tegra ACONNECT Bus |
| 8 | |
| 9 | description: | |
| 10 | The Tegra ACONNECT bus is an AXI switch which is used to connect various |
| 11 | components inside the Audio Processing Engine (APE). All CPU accesses to |
| 12 | the APE subsystem go through the ACONNECT via an APB to AXI wrapper. All |
| 13 | devices accessed via the ACONNECT are described by child-nodes. |
| 14 | |
| 15 | maintainers: |
| 16 | - Jon Hunter <jonathanh@nvidia.com> |
| 17 | |
| 18 | properties: |
| 19 | compatible: |
| 20 | oneOf: |
| 21 | - const: nvidia,tegra210-aconnect |
| 22 | - items: |
| 23 | - enum: |
| 24 | - nvidia,tegra234-aconnect |
| 25 | - nvidia,tegra186-aconnect |
| 26 | - nvidia,tegra194-aconnect |
| 27 | - const: nvidia,tegra210-aconnect |
| 28 | |
| 29 | clocks: |
| 30 | items: |
| 31 | - description: Must contain the entry for APE clock |
| 32 | - description: Must contain the entry for APE interface clock |
| 33 | |
| 34 | clock-names: |
| 35 | items: |
| 36 | - const: ape |
| 37 | - const: apb2ape |
| 38 | |
| 39 | power-domains: |
| 40 | maxItems: 1 |
| 41 | |
| 42 | "#address-cells": |
| 43 | enum: [ 1, 2 ] |
| 44 | |
| 45 | "#size-cells": |
| 46 | enum: [ 1, 2 ] |
| 47 | |
| 48 | ranges: true |
| 49 | |
| 50 | patternProperties: |
| 51 | "@[0-9a-f]+$": |
| 52 | type: object |
| 53 | |
| 54 | required: |
| 55 | - compatible |
| 56 | - clocks |
| 57 | - clock-names |
| 58 | - power-domains |
| 59 | - "#address-cells" |
| 60 | - "#size-cells" |
| 61 | - ranges |
| 62 | |
| 63 | additionalProperties: false |
| 64 | |
| 65 | examples: |
| 66 | - | |
| 67 | #include<dt-bindings/clock/tegra210-car.h> |
| 68 | |
| 69 | aconnect@702c0000 { |
| 70 | compatible = "nvidia,tegra210-aconnect"; |
| 71 | clocks = <&tegra_car TEGRA210_CLK_APE>, |
| 72 | <&tegra_car TEGRA210_CLK_APB2APE>; |
| 73 | clock-names = "ape", "apb2ape"; |
| 74 | power-domains = <&pd_audio>; |
| 75 | |
| 76 | #address-cells = <1>; |
| 77 | #size-cells = <1>; |
| 78 | ranges = <0x702c0000 0x702c0000 0x00040000>; |
| 79 | |
| 80 | // Child device nodes follow ... |
| 81 | }; |
| 82 | |
| 83 | ... |