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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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73b7a51b74
Add i.MX SCMI Extension protocols bindings for: - Logic Machine Management(LMM) Protocol intended for boot, shutdown, and reset of other logical machines (LM). It is usually used to allow one LM to manager another used as an offload or accelerator engine.. - CPU Protocol. allows an agent to start or stop a CPU. It is used to manage auxiliary CPUs in an LM (e.g. additional cores in an AP cluster). Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Peng Fan <peng.fan@nxp.com> Message-Id: <20250408-imx-lmm-cpu-v4-2-4c5f4a456e49@nxp.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
67 lines
1.8 KiB
YAML
67 lines
1.8 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright 2024 NXP
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/firmware/nxp,imx95-scmi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: i.MX95 System Control and Management Interface(SCMI) Vendor Protocols Extension
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maintainers:
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- Peng Fan <peng.fan@nxp.com>
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properties:
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protocol@80:
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description:
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SCMI LMM protocol which is for boot, shutdown, and reset of other logical
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machines (LM). It is usually used to allow one LM to manage another used
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as an offload or accelerator engine.
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$ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
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unevaluatedProperties: false
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properties:
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reg:
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const: 0x80
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protocol@81:
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$ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
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unevaluatedProperties: false
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properties:
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reg:
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const: 0x81
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protocol@82:
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description:
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SCMI CPU Protocol which allows an agent to start or stop a CPU. It is
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used to manage auxiliary CPUs in a LM.
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$ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
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unevaluatedProperties: false
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properties:
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reg:
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const: 0x82
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protocol@84:
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$ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
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unevaluatedProperties: false
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properties:
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reg:
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const: 0x84
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nxp,ctrl-ids:
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description:
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Each entry consists of 2 integers, represents the ctrl id and the value
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items:
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items:
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- description: the ctrl id index
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enum: [0, 1, 2, 3, 4, 5, 6, 7, 0x8000, 0x8001, 0x8002, 0x8003,
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0x8004, 0x8005, 0x8006, 0x8007]
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- description: the value assigned to the ctrl id
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minItems: 1
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maxItems: 16
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$ref: /schemas/types.yaml#/definitions/uint32-matrix
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additionalProperties: true
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