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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/access-controllers/access-controllers.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic Domain Access Controllers
+
+maintainers:
+ - Oleksii Moisieiev <oleksii_moisieiev@epam.com>
+
+description: |+
+ Common access controllers properties
+
+ Access controllers are in charge of stating which of the hardware blocks under
+ their responsibility (their domain) can be accesssed by which compartment. A
+ compartment can be a cluster of CPUs (or coprocessors), a range of addresses
+ or a group of hardware blocks. An access controller's domain is the set of
+ resources covered by the access controller.
+
+ This device tree binding can be used to bind devices to their access
+ controller provided by access-controllers property. In this case, the device
+ is a consumer and the access controller is the provider.
+
+ An access controller can be represented by any node in the device tree and
+ can provide one or more configuration parameters, needed to control parameters
+ of the consumer device. A consumer node can refer to the provider by phandle
+ and a set of phandle arguments, specified by '#access-controller-cells'
+ property in the access controller node.
+
+ Access controllers are typically used to set/read the permissions of a
+ hardware block and grant access to it. Any of which depends on the access
+ controller. The capabilities of each access controller are defined by the
+ binding of the access controller device.
+
+ Each node can be a consumer for the several access controllers.
+
+# always select the core schema
+select: true
+
+properties:
+ "#access-controller-cells":
+ description:
+ Number of cells in an access-controllers specifier;
+ Can be any value as specified by device tree binding documentation
+ of a particular provider. The node is an access controller.
+
+ access-controller-names:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description:
+ A list of access-controllers names, sorted in the same order as
+ access-controllers entries. Consumer drivers will use
+ access-controller-names to match with existing access-controllers entries.
+
+ access-controllers:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ A list of access controller specifiers, as defined by the
+ bindings of the access-controllers provider.
+
+additionalProperties: true
+
+examples:
+ - |
+ clock_controller: access-controllers@50000 {
+ reg = <0x50000 0x400>;
+ #access-controller-cells = <2>;
+ };
+
+ bus_controller: bus@60000 {
+ reg = <0x60000 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ #access-controller-cells = <3>;
+
+ uart4: serial@60100 {
+ reg = <0x60100 0x400>;
+ clocks = <&clk_serial>;
+ access-controllers = <&clock_controller 1 2>,
+ <&bus_controller 1 3 5>;
+ access-controller-names = "clock", "bus";
+ };
+ };