blob: d97b59fa0945271988a0e7503559ea59918676dd [file] [log] [blame]
# Copyright (c) 2018, qianfan Zhao
# SPDX-License-Identifier: Apache-2.0
description: Atmel SAM SPI controller
compatible: "atmel,sam-spi"
include:
- name: spi-controller.yaml
- name: pinctrl-device.yaml
properties:
reg:
required: true
interrupts:
required: true
clocks:
required: true
loopback:
type: boolean
description: |
Connects TX to RX internally creating a loop back connection. Useful
for testing.
dmas:
description: |
TX & RX dma specifiers. Each specifier will have a phandle
reference to the dma controller, the channel number, and peripheral
trigger source. The channel number is arbitrary but must not be
reused. The number of channels available is device dependent.
For example dmas for TX and RX may look like
dmas = <&xdmac 1 DMA_PERID_SPI0_TX>, <&xdmac 2 DMA_PERID_SPI0_RX>;
dma-names:
description: |
This should be "tx" and "rx" and should match the order given for
dmas.
For example using the example dmas, an example dma-names would be
dma-names = "tx", "rx";