[PATCH v4 1/3] dt-bindings: soc: sophgo: add TOP syscon for CV18XX/SG200X series SoC

Longbin Li
2025-10-24T03:06:05Z

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.

Co-developed-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Longbin Li <looong.bin@gmail.com>
---
.../soc/sophgo/sophgo,cv1800b-top-syscon.yaml | 81 +++++++++++++++++++
1 file changed, 81 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..d044ca661fa2
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml
@@ -0,0 +1,81 @@
+# 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@outlook.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
+
+ ranges: true
+
+patternProperties:
+ "dma-router@[0-9a-f]+$":
+ $ref: /schemas/dma/sophgo,cv1800b-dmamux.yaml#
+ unevaluatedProperties: false
+
+ "phy@[0-9a-f]+$":
+ $ref: /schemas/phy/sophgo,cv1800b-usb2-phy.yaml#
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sophgo,cv1800.h>
+
+ syscon@3000000 {
+ compatible = "sophgo,cv1800b-top-syscon", "syscon", "simple-mfd";
+ reg = <0x03000000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ usbphy: phy@48 {
+ compatible = "sophgo,cv1800b-usb2-phy";
+ reg = <0x48 0x4>;
+ #phy-cells = <0>;
+ clocks = <&clk CLK_USB_125M>,
+ <&clk CLK_USB_33K>,
+ <&clk CLK_USB_12M>;
+ clock-names = "app", "stb", "lpm";
+ resets = <&rst 58>;
+ };
+
+ dmamux: dma-router@154 {
+ compatible = "sophgo,cv1800b-dmamux";
+ reg = <0x154 0x8>, <0x298 0x4>;
+ #dma-cells = <2>;
+ dma-masters = <&dmac>;
+ };
+ };
+
+...
--
2.51.0