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author | Green Wan <green.wan@sifive.com> | 2019-11-07 11:49:19 +0300 |
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committer | Vinod Koul <vkoul@kernel.org> | 2019-11-14 10:10:45 +0300 |
commit | fa805360f4cfa34cb3575715e1c8b4f9a253b474 (patch) | |
tree | 7436e5ca0500e9ad2f641c87977e4c1cc27a05bf /Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml | |
parent | 5c5332a6a229acc856811bdce1c0845986e8306a (diff) | |
download | linux-fa805360f4cfa34cb3575715e1c8b4f9a253b474.tar.xz |
dt-bindings: dmaengine: sf-pdma: add bindins for SiFive PDMA
Add DT bindings document for Platform DMA(PDMA) driver of board,
HiFive Unleashed Rev A00.
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Signed-off-by: Green Wan <green.wan@sifive.com>
Link: https://lore.kernel.org/r/20191107084955.7580-2-green.wan@sifive.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml new file mode 100644 index 000000000000..2ca3ddbe1ff4 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/sifive,fu540-c000-pdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SiFive Unleashed Rev C000 Platform DMA + +maintainers: + - Green Wan <green.wan@sifive.com> + - Palmer Debbelt <palmer@sifive.com> + - Paul Walmsley <paul.walmsley@sifive.com> + +description: | + Platform DMA is a DMA engine of SiFive Unleashed. It supports 4 + channels. Each channel has 2 interrupts. One is for DMA done and + the other is for DME error. + + In different SoC, DMA could be attached to different IRQ line. + DT file need to be changed to meet the difference. For technical + doc, + + https://static.dev.sifive.com/FU540-C000-v1.0.pdf + +properties: + compatible: + items: + - const: sifive,fu540-c000-pdma + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 8 + + '#dma-cells': + const: 1 + +required: + - compatible + - reg + - interrupts + - '#dma-cells' + +examples: + - | + dma@3000000 { + compatible = "sifive,fu540-c000-pdma"; + reg = <0x0 0x3000000 0x0 0x8000>; + interrupts = <23 24 25 26 27 28 29 30>; + #dma-cells = <1>; + }; + +... |