linux-kernel - [PATCH v1 1/3] dt-bindings: soc: sophgo: add TOP syscon for CV18XX/SG200X series SoC

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Message-ID: <20251012022555.6240-2-looong.bin@gmail.com>
Date: Sun, 12 Oct 2025 10:25:52 +0800
From: Longbin Li <looong.bin@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Paul Walmsley <pjw@...nel.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	Longbin Li <looong.bin@...il.com>,
	Alexander Sverdlin <alexander.sverdlin@...il.com>,
	Yixun Lan <dlan@...too.org>,
	Thomas Bonnefille <thomas.bonnefille@...tlin.com>,
	Ze Huang <huangze@...t.edu.cn>
Cc: devicetree@...r.kernel.org,
	sophgo@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: [PATCH v1 1/3] dt-bindings: soc: sophgo: add TOP syscon for CV18XX/SG200X series SoC

The Sophgo CV1800/SG2000 SoC top misc system controller provides register
access to configure related modules. It includes a usb2 phy and a dma
multiplexer.

Signed-off-by: Inochi Amaoto <inochiama@...il.com>
Signed-off-by: Longbin Li <looong.bin@...il.com>
---
 .../soc/sophgo/sophgo,cv1800b-top-syscon.yaml | 59 +++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml

diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml
new file mode 100644
index 000000000000..d1993f2156b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800b-top-syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV18XX/SG200X SoC top system controller
+
+maintainers:
+  - Inochi Amaoto <inochiama@...look.com>
+
+description:
+  The Sophgo CV18XX/SG200X SoC top misc system controller provides
+  register access to configure related modules.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: sophgo,cv1800b-top-syscon
+          - const: syscon
+          - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+patternProperties:
+  "dma-router@154":
+    $ref: /schemas/dma/sophgo,cv1800b-dmamux.yaml#
+    unevaluatedProperties: false
+
+  "phy@48":
+    $ref: /schemas/phy/sophgo,cv1800b-usb2-phy.yaml#
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - "#address-cells"
+  - "#size-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    syscon@...0000 {
+      compatible = "sophgo,cv1800b-top-syscon", "syscon", "simple-mfd";
+      reg = <0x03000000 0x1000>;
+      #address-cells = <1>;
+      #size-cells = <1>;
+    };
+
+...
--
2.51.0