fba5618451
The examples template is a 'simple-bus' with a size of 1 cell for had between 2 and 4 cells which really only errors on I2C or SPI type devices with a single cell. The easiest fix in most cases is to change the 'reg' property to for 1 cell address and size. In some cases with child devices having 2 cells, that doesn't make sense so a bus node is needed. Acked-by: Stephen Boyd <sboyd@kernel.org> # clk Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
58 lines
1.2 KiB
YAML
58 lines
1.2 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/dma/sifive,fu540-c000-pdma.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: SiFive Unleashed Rev C000 Platform DMA
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maintainers:
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- Green Wan <green.wan@sifive.com>
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- Palmer Debbelt <palmer@sifive.com>
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- Paul Walmsley <paul.walmsley@sifive.com>
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description: |
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Platform DMA is a DMA engine of SiFive Unleashed. It supports 4
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channels. Each channel has 2 interrupts. One is for DMA done and
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the other is for DME error.
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In different SoC, DMA could be attached to different IRQ line.
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DT file need to be changed to meet the difference. For technical
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doc,
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https://static.dev.sifive.com/FU540-C000-v1.0.pdf
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properties:
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compatible:
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items:
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- const: sifive,fu540-c000-pdma
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reg:
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maxItems: 1
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interrupts:
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minItems: 1
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maxItems: 8
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'#dma-cells':
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const: 1
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required:
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- compatible
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- reg
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- interrupts
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- '#dma-cells'
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additionalProperties: false
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examples:
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- |
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dma@3000000 {
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compatible = "sifive,fu540-c000-pdma";
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reg = <0x3000000 0x8000>;
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interrupts = <23 24 25 26 27 28 29 30>;
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#dma-cells = <1>;
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};
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...
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