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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/soc/fsl/fsl,bman.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: QorIQ DPAA Buffer Manager
maintainers:
- Frank Li <Frank.Li@nxp.com>
description:
The Buffer Manager is part of the Data-Path Acceleration Architecture (DPAA).
BMan supports hardware allocation and deallocation of buffers belonging to
pools originally created by software with configurable depletion thresholds.
This binding covers the CCSR space programming model
properties:
compatible:
oneOf:
- const: fsl,bman
- items:
- enum:
- fsl,ls1043a-bman
- fsl,ls1046a-bman
- const: fsl,bman
reg:
items:
- description: |
Registers region within the CCSR address space
The BMan revision information is located in the BMAN_IP_REV_1/2
registers which are located at offsets 0xbf8 and 0xbfc
interrupts:
items:
- description: The error interrupt
memory-region:
minItems: 1
maxItems: 2
description:
List of phandles referencing the BMan private memory
nodes (described below). The bman-fqd node must be
first followed by bman-pfdr node. Only used on ARM
Devices connected to a BMan instance via Direct Connect Portals (DCP) must link
to the respective BMan instance
fsl,bman-portals:
$ref: /schemas/types.yaml#/definitions/phandle
description: ref fsl,bman-port.yaml
fsl,liodn:
$ref: /schemas/types.yaml#/definitions/uint32-array
description:
See pamu.txt, PAMU property used for static LIODN assignment
fsl,iommu-parent:
$ref: /schemas/types.yaml#/definitions/phandle
description:
See pamu.txt, PAMU property used for dynamic LIODN assignment
required:
- compatible
- reg
- interrupts
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
bman@31a000 {
compatible = "fsl,bman";
reg = <0x31a000 0x1000>;
interrupts = <16 IRQ_TYPE_EDGE_FALLING 1 2>;
fsl,liodn = <0x17>;
fsl,bman-portals = <&bportals>;
memory-region = <&bman_fbpr>;
};
|
