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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/devicetree/bindings/dma/arm,pl330.yaml | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/dma/arm,pl330.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/dma/arm,pl330.yaml | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/arm,pl330.yaml b/Documentation/devicetree/bindings/dma/arm,pl330.yaml new file mode 100644 index 000000000..4a3dd6f53 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/arm,pl330.yaml @@ -0,0 +1,92 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/arm,pl330.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ARM PrimeCell PL330 DMA Controller + +maintainers: + - Vinod Koul <vkoul@kernel.org> + +description: + The ARM PrimeCell PL330 DMA controller can move blocks of memory contents + between memory and peripherals or memory to memory. + +# We need a select here so we don't match all nodes with 'arm,primecell' +select: + properties: + compatible: + contains: + const: arm,pl330 + required: + - compatible + +allOf: + - $ref: dma-controller.yaml# + - $ref: /schemas/arm/primecell.yaml# + +properties: + compatible: + items: + - enum: + - arm,pl330 + - const: arm,primecell + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 32 + description: A single combined interrupt or an interrupt per event + + '#dma-cells': + const: 1 + description: Contains the DMA request number for the consumer + + arm,pl330-broken-no-flushp: + type: boolean + description: quirk for avoiding to execute DMAFLUSHP + + arm,pl330-periph-burst: + type: boolean + description: quirk for performing burst transfer only + + dma-coherent: true + + iommus: + minItems: 1 + maxItems: 9 + description: Up to 1 IOMMU entry per DMA channel for writes and 1 + IOMMU entry for reads. + + power-domains: + maxItems: 1 + + resets: + minItems: 1 + maxItems: 2 + + reset-names: + minItems: 1 + items: + - const: dma + - const: dma-ocp + +required: + - compatible + - reg + - interrupts + +unevaluatedProperties: false + +examples: + - | + dma-controller@12680000 { + compatible = "arm,pl330", "arm,primecell"; + reg = <0x12680000 0x1000>; + interrupts = <99>; + #dma-cells = <1>; + }; +... |