[PATCH v2 1/5] dt-bindings: bus: add documentation for the IMX AIPSTZ bridge
Laurentiu Mihalcea
laurentiumihalcea111 at gmail.com
Wed Feb 26 08:53:10 PST 2025
From: Laurentiu Mihalcea <laurentiu.mihalcea at nxp.com>
Add documentation for IMX AIPSTZ bridge.
Co-developed-by: Daniel Baluta <daniel.baluta at nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta at nxp.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea at nxp.com>
---
.../bindings/bus/fsl,imx8mp-aipstz.yaml | 86 +++++++++++++++++++
1 file changed, 86 insertions(+)
create mode 100644 Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml
diff --git a/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml b/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml
new file mode 100644
index 000000000000..dfcfe4a8ae74
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/fsl,imx8mp-aipstz.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Secure AHB to IP Slave bus (AIPSTZ) bridge
+
+description:
+ The secure AIPS bridge (AIPSTZ) acts as a bridge for AHB masters
+ issuing transactions to IP Slave peripherals. Additionally, this module
+ offers access control configurations meant to restrict which peripherals
+ a master can access.
+
+maintainers:
+ - Laurentiu Mihalcea <laurentiu.mihalcea at nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8mp-aipstz
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ "#address-cells":
+ enum: [1, 2]
+
+ "#size-cells":
+ enum: [1, 2]
+
+ "#access-controller-cells":
+ const: 0
+
+ ranges: true
+
+# borrowed from simple-bus.yaml, no additional requirements for children
+patternProperties:
+ "@(0|[1-9a-f][0-9a-f]*)$":
+ type: object
+ additionalProperties: true
+ properties:
+ reg:
+ items:
+ minItems: 2
+ maxItems: 4
+ minItems: 1
+ maxItems: 1024
+ ranges:
+ oneOf:
+ - items:
+ minItems: 3
+ maxItems: 7
+ minItems: 1
+ maxItems: 1024
+ - $ref: /schemas/types.yaml#/definitions/flag
+ anyOf:
+ - required:
+ - reg
+ - required:
+ - ranges
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - "#address-cells"
+ - "#size-cells"
+ - "#access-controller-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ bus at 30df0000 {
+ compatible = "fsl,imx8mp-aipstz";
+ reg = <0x30df0000 0x10000>;
+ power-domains = <&pgc_audio>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #access-controller-cells = <0>;
+ ranges;
+ };
--
2.34.1
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