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-# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
-# Copyright 2019 Linaro Ltd.
-%YAML 1.2
----
-$id: "http://devicetree.org/schemas/misc/intel-ixp4xx-ahb-queue-manager.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-
-title: Intel IXP4xx AHB Queue Manager
-
-maintainers:
- - Linus Walleij <linus.walleij@linaro.org>
-
-description: |
- The IXP4xx AHB Queue Manager maintains queues as circular buffers in
- an 8KB embedded SRAM along with hardware pointers. It is used by both
- the XScale processor and the NPEs (Network Processing Units) in the
- IXP4xx for accelerating queues, especially for networking. Clients pick
- queues from the queue manager with foo-queue = <&qmgr N> where the
- &qmgr is a phandle to the queue manager and N is the queue resource
- number. The queue resources available and their specific purpose
- on a certain IXP4xx system will vary.
-
-properties:
- compatible:
- items:
- - const: intel,ixp4xx-ahb-queue-manager
-
- reg:
- maxItems: 1
-
- interrupts:
- items:
- - description: Interrupt for queues 0-31
- - description: Interrupt for queues 32-63
-
-required:
- - compatible
- - reg
- - interrupts
-
-examples:
- - |
- #include <dt-bindings/interrupt-controller/irq.h>
-
- qmgr: queue-manager@60000000 {
- compatible = "intel,ixp4xx-ahb-queue-manager";
- reg = <0x60000000 0x4000>;
- interrupts = <3 IRQ_TYPE_LEVEL_HIGH>, <4 IRQ_TYPE_LEVEL_HIGH>;
- };