c4cacb5b80
Add binding doc for fsl,spba-bus. Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
69 lines
1.4 KiB
YAML
69 lines
1.4 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/bus/fsl,spba-bus.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Shared Peripherals Bus Interface
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maintainers:
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- Shawn Guo <shawnguo@kernel.org>
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description: |
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A simple bus enabling access to shared peripherals.
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The "spba-bus" follows the "simple-bus" set of properties, as
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specified in the Devicetree Specification. It is an extension of
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"simple-bus" because the SDMA controller uses this compatible flag to
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determine which peripherals are available to it and the range over which
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the SDMA can access. There are no special clocks for the bus, because
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the SDMA controller itself has its interrupt and clock assignments.
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select:
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properties:
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compatible:
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contains:
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const: fsl,spba-bus
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required:
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- compatible
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properties:
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$nodename:
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pattern: "^spba-bus(@[0-9a-f]+)?$"
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compatible:
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items:
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- const: fsl,spba-bus
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- const: simple-bus
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'#address-cells':
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enum: [ 1, 2 ]
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'#size-cells':
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enum: [ 1, 2 ]
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reg:
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maxItems: 1
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ranges: true
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required:
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- compatible
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- '#address-cells'
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- '#size-cells'
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- reg
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- ranges
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additionalProperties:
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type: object
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examples:
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- |
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spba-bus@30000000 {
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compatible = "fsl,spba-bus", "simple-bus";
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <0x30000000 0x100000>;
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ranges;
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};
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