45 lines
1.1 KiB
YAML
45 lines
1.1 KiB
YAML
# Copyright (c) 2018, qianfan Zhao
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# SPDX-License-Identifier: Apache-2.0
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description: Atmel SAM SPI controller
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compatible: "atmel,sam-spi"
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include:
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- name: spi-controller.yaml
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- name: pinctrl-device.yaml
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properties:
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reg:
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required: true
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interrupts:
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required: true
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clocks:
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required: true
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loopback:
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type: boolean
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description: |
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Connects TX to RX internally creating a loop back connection. Useful
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for testing.
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dmas:
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description: |
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TX & RX dma specifiers. Each specifier will have a phandle
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reference to the dma controller, the channel number, and peripheral
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trigger source. The channel number is arbitrary but must not be
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reused. The number of channels available is device dependent.
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For example dmas for TX and RX may look like
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dmas = <&xdmac 1 DMA_PERID_SPI0_TX>, <&xdmac 2 DMA_PERID_SPI0_RX>;
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dma-names:
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description: |
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This should be "tx" and "rx" and should match the order given for
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dmas.
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For example using the example dmas, an example dma-names would be
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dma-names = "tx", "rx";
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