| 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/remoteproc/qcom,smd-edge.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Qualcomm SMD Edge communication channel nodes |
| 8 | |
| 9 | maintainers: |
| 10 | - Bjorn Andersson <bjorn.andersson@linaro.org> |
| 11 | |
| 12 | description: |
| 13 | Qualcomm SMD subnode represents a remote subsystem or a remote processor of |
| 14 | some sort - or in SMD language an "edge". The name of the edges are not |
| 15 | important. |
| 16 | |
| 17 | In turn, subnodes of the "edges" represent devices tied to SMD channels on |
| 18 | that "edge". The names of the devices are not important. The properties of |
| 19 | these nodes are defined by the individual bindings for the SMD devices. |
| 20 | See also Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml |
| 21 | |
| 22 | properties: |
| 23 | $nodename: |
| 24 | const: smd-edge |
| 25 | |
| 26 | apr: |
| 27 | $ref: /schemas/soc/qcom/qcom,apr.yaml# |
| 28 | required: |
| 29 | - qcom,smd-channels |
| 30 | description: |
| 31 | Qualcomm APR/GPR (Asynchronous/Generic Packet Router) |
| 32 | |
| 33 | fastrpc: |
| 34 | $ref: /schemas/misc/qcom,fastrpc.yaml# |
| 35 | required: |
| 36 | - qcom,smd-channels |
| 37 | description: |
| 38 | Qualcomm FastRPC |
| 39 | |
| 40 | interrupts: |
| 41 | maxItems: 1 |
| 42 | |
| 43 | label: |
| 44 | description: |
| 45 | Name of the edge, used for debugging and identification purposes. The |
| 46 | node name will be used if this is not present. |
| 47 | |
| 48 | mboxes: |
| 49 | maxItems: 1 |
| 50 | description: |
| 51 | Reference to the mailbox representing the outgoing doorbell in APCS for |
| 52 | this client. |
| 53 | |
| 54 | qcom,ipc: |
| 55 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 56 | items: |
| 57 | - items: |
| 58 | - description: phandle to a syscon node representing the APCS registers |
| 59 | - description: u32 representing offset to the register within the syscon |
| 60 | - description: u32 representing the ipc bit within the register |
| 61 | description: |
| 62 | Three entries specifying the outgoing ipc bit used for signaling the |
| 63 | remote processor. |
| 64 | |
| 65 | qcom,smd-edge: |
| 66 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 67 | description: |
| 68 | The identifier of the remote processor in the smd channel allocation |
| 69 | table. |
| 70 | |
| 71 | qcom,remote-pid: |
| 72 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 73 | description: |
| 74 | The identifier for the remote processor as known by the rest of the |
| 75 | system. |
| 76 | |
| 77 | rpm-requests: |
| 78 | $ref: /schemas/soc/qcom/qcom,smd-rpm.yaml# |
| 79 | required: |
| 80 | - qcom,smd-channels |
| 81 | description: |
| 82 | Qualcomm Resource Power Manager (RPM) over SMD. |
| 83 | |
| 84 | wcnss: |
| 85 | $ref: /schemas/soc/qcom/qcom,wcnss.yaml |
| 86 | required: |
| 87 | - qcom,smd-channels |
| 88 | description: |
| 89 | Qualcomm WCNSS for Bluetooth, WiFi and FM radio. |
| 90 | |
| 91 | required: |
| 92 | - interrupts |
| 93 | - qcom,smd-edge |
| 94 | |
| 95 | oneOf: |
| 96 | - required: |
| 97 | - mboxes |
| 98 | - required: |
| 99 | - qcom,ipc |
| 100 | |
| 101 | additionalProperties: false |
| 102 | |
| 103 | examples: |
| 104 | - | |
| 105 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 106 | #include <dt-bindings/mailbox/qcom-ipcc.h> |
| 107 | |
| 108 | remoteproc { |
| 109 | // ... |
| 110 | |
| 111 | smd-edge { |
| 112 | interrupts = <GIC_SPI 156 IRQ_TYPE_EDGE_RISING>; |
| 113 | |
| 114 | qcom,ipc = <&apcs 8 8>; |
| 115 | qcom,smd-edge = <1>; |
| 116 | }; |
| 117 | }; |