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