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zephyr/dts/bindings/spi/atmel,sam0-spi.yaml

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spi: sam0: use Device Tree for configuration. Switch the SoC device tree to define a single entry per SERCOM instead of one per mode. Define a Device Tree binding for the SAM0 SPI and use it instead of Kconfig for enabling / disabaling instances Switch the Arduino Zero, Adafruit Feather M0 Basic Proto, and Trinket M0 to use the new defintion. Add the APA102 LED that's on the Trinket as a test. Signed-off-by: Michael Hope <mlhx@google.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-01-29 03:13:54 +08:00
#
# Copyright (c) 2018, Google LLC.
#
# SPDX-License-Identifier: Apache-2.0
#
---
title: Atmel SAM0 SERCOM SPI driver
version: 0.1
description: >
This binding gives a base representation of the Atmel SAM0 SERCOM SPI controller
inherits:
!include spi.yaml
properties:
compatible:
constraint: "atmel,sam0-spi"
reg:
category: required
drivers: spi_sam0: move sercom pad info to dts Move the setting of the SERCOM PAD for dipo/dopo for the spi driver into device tree out of board.h Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-01 18:15:59 +08:00
dipo:
type: int
category: required
description: Data In Pinout
generation: define
dopo:
type: int
category: required
description: Data Out Pinout
generation: define
drivers: spi: sam0: Implement DMA async API This adds support for the async API for SAM0 SERCOM SPI using DMA to drive the device. This implementation does the reload for both transmit and receive in the receive DMA handler. Doing this simplifies the implementation but means that the transmit drains completely, resulting in the SPI clock pausing between buffers while both are reloaded in the receive handler. Tested with tests/drivers/spi/spi_loopback and several simple programs monitored with a logic analyzer. Signed-off-by: Derek Hageman <hageman@inthat.cloud>
2019-03-29 06:11:42 +08:00
rxdma:
type: int
category: optional
description: Receive DMA channel
generation: define
txdma:
type: int
category: optional
description: Transmit DMA channel
generation: define
spi: sam0: use Device Tree for configuration. Switch the SoC device tree to define a single entry per SERCOM instead of one per mode. Define a Device Tree binding for the SAM0 SPI and use it instead of Kconfig for enabling / disabaling instances Switch the Arduino Zero, Adafruit Feather M0 Basic Proto, and Trinket M0 to use the new defintion. Add the APA102 LED that's on the Trinket as a test. Signed-off-by: Michael Hope <mlhx@google.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-01-29 03:13:54 +08:00
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