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Subject[PATCH v2 1/9] dt-binding: remoteproc: mediatek: Support dual-core SCP
Date
The MT8195 SCP co-processor is a dual-core RISC-V MCU.

Add a new property to reference the sibling core and to assign
core id to SCP nodes. Also add a new compatile for the driver of
SCP 2nd core.

Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
---
.../devicetree/bindings/remoteproc/mtk,scp.yaml | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
index eec3b9c4c713..4576ff9b1f2d 100644
--- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
@@ -20,6 +20,7 @@ properties:
- mediatek,mt8186-scp
- mediatek,mt8192-scp
- mediatek,mt8195-scp
+ - mediatek,mt8195-scp-dual

reg:
description:
@@ -57,6 +58,17 @@ properties:
memory-region:
maxItems: 1

+ mediatek,scp-core:
+ $ref: "/schemas/types.yaml#/definitions/phandle-array"
+ description:
+ Reference to the sibling SCP core. This is required to
+ enable support for dual-core SCP.
+ items:
+ - items:
+ - description: Phandle of sibling SCP node.
+ - description: Core id of this SCP node
+ enum: [0, 1]
+
required:
- compatible
- reg
@@ -115,6 +127,7 @@ examples:
reg-names = "sram", "cfg", "l1tcm";
clocks = <&infracfg CLK_INFRA_SCPSYS>;
clock-names = "main";
+ mediatek,scp-core = <&scp_dual 0>;

cros_ec {
mediatek,rpmsg-name = "cros-ec-rpmsg";
--
2.18.0
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