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[07/10] dt-bindings: reset: sophgo: Add CV18xx reset controller

Message ID 20250209220646.1090868-8-alexander.sverdlin@gmail.com
State New
Headers show
Series arm64 support for Milk-V Duo Module 01 EVB | expand

Commit Message

Alexander Sverdlin Feb. 9, 2025, 10:06 p.m. UTC 
Add DT bindings for CV18xx reset controller. The power/reboot driver is
going to use only 4 bits from two different MMIO regions which can be
potentially used by other subsystems/drivers, therefore the resources
are not being claimed directly by the device/driver, but via syscons
instead.

Link: https://github.com/sophgo/sophgo-doc/releases/download/sg2000-trm-v1.01/sg2000_trm_en.pdf
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
---
 .../bindings/reset/sophgo,cv1800-reset.yaml   | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/sophgo,cv1800-reset.yaml
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/reset/sophgo,cv1800-reset.yaml b/Documentation/devicetree/bindings/reset/sophgo,cv1800-reset.yaml
new file mode 100644
index 000000000000..4f058f99df5f
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/sophgo,cv1800-reset.yaml
@@ -0,0 +1,38 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/sophgo,cv1800-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cvitek CV18xx/Sophgo SG2000 Reset Controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+
+properties:
+  compatible:
+    const: sophgo,cv1800-reset
+
+  sophgo,rtcsys-ctrl:
+    description: phandle of the "RTCSYS_CTRL" syscon block
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  sophgo,rtcsys-core:
+    description: phandle of the "RTCSYS_CORE" syscon block
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+  - compatible
+  - sophgo,rtcsys-ctrl
+  - sophgo,rtcsys-core
+
+additionalProperties: false
+
+examples:
+  - |
+    soc-reset {
+        compatible = "sophgo,cv1800-reset";
+        sophgo,rtcsys-ctrl = <&rtcsys_ctrl>;
+        sophgo,rtcsys-core = <&rtcsys_core>;
+    };
+...