125 lines
2.7 KiB
YAML
125 lines
2.7 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/remoteproc/mtk,scp.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Mediatek SCP Bindings
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maintainers:
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- Tinghan Shen <tinghan.shen@mediatek.com>
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description:
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This binding provides support for ARM Cortex M4 Co-processor found on some
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Mediatek SoCs.
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properties:
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compatible:
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enum:
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- mediatek,mt8183-scp
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- mediatek,mt8186-scp
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- mediatek,mt8188-scp
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- mediatek,mt8192-scp
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- mediatek,mt8195-scp
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reg:
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description:
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Should contain the address ranges for memory regions SRAM, CFG, and,
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on some platforms, L1TCM.
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minItems: 2
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maxItems: 3
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reg-names:
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minItems: 2
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items:
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- const: sram
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- const: cfg
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- const: l1tcm
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clocks:
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description:
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Clock for co-processor (see ../clock/clock-bindings.txt).
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Required by mt8183 and mt8192.
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maxItems: 1
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clock-names:
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const: main
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interrupts:
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maxItems: 1
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firmware-name:
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$ref: /schemas/types.yaml#/definitions/string
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description:
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If present, name (or relative path) of the file within the
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firmware search path containing the firmware image used when
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initializing SCP.
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memory-region:
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maxItems: 1
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required:
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- compatible
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- reg
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- reg-names
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allOf:
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- if:
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properties:
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compatible:
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enum:
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- mediatek,mt8183-scp
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- mediatek,mt8192-scp
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then:
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required:
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- clocks
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- clock-names
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- if:
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properties:
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compatible:
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enum:
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- mediatek,mt8183-scp
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- mediatek,mt8186-scp
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- mediatek,mt8188-scp
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then:
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properties:
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reg:
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maxItems: 2
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reg-names:
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maxItems: 2
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additionalProperties:
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type: object
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description:
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Subnodes of the SCP represent rpmsg devices. The names of the devices
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are not important. The properties of these nodes are defined by the
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individual bindings for the rpmsg devices.
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properties:
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mediatek,rpmsg-name:
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$ref: /schemas/types.yaml#/definitions/string-array
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description:
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Contains the name for the rpmsg device. Used to match
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the subnode to rpmsg device announced by SCP.
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required:
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- mediatek,rpmsg-name
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examples:
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- |
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#include <dt-bindings/clock/mt8192-clk.h>
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scp@10500000 {
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compatible = "mediatek,mt8192-scp";
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reg = <0x10500000 0x80000>,
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<0x10700000 0x8000>,
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<0x10720000 0xe0000>;
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reg-names = "sram", "cfg", "l1tcm";
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clocks = <&infracfg CLK_INFRA_SCPSYS>;
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clock-names = "main";
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cros_ec {
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mediatek,rpmsg-name = "cros-ec-rpmsg";
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};
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};
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