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+# 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,mt8188-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
+ - mediatek,mt8188-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";
+ };
+ };