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Diffstat (limited to 'Documentation/devicetree/bindings/soc/fsl/fsl,bman.yaml')
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diff --git a/Documentation/devicetree/bindings/soc/fsl/fsl,bman.yaml b/Documentation/devicetree/bindings/soc/fsl/fsl,bman.yaml new file mode 100644 index 000000000000..e6f468264b8d --- /dev/null +++ b/Documentation/devicetree/bindings/soc/fsl/fsl,bman.yaml @@ -0,0 +1,83 @@ +# 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>; + }; |