blob: 1dc137546051cc4d7e253856eb74d20346c09678 [file] [log] [blame]
# Copyright (c) 2018, NXP
# SPDX-License-Identifier: Apache-2.0
description: NXP Kinetis DSPI controller
compatible: "nxp,kinetis-dspi"
include: ["spi-controller.yaml", "pinctrl-device.yaml"]
properties:
reg:
required: true
interrupts:
required: true
clocks:
required: true
pcs-sck-delay:
type: int
description: |
Delay in nanoseconds from the chip select assert to the first clock
edge. If not set, the minimum supported delay is used.
sck-pcs-delay:
type: int
description: |
Delay in nanoseconds from the last clock edge to the chip select
deassert. If not set, the minimum supported delay is used.
transfer-delay:
type: int
description: |
Delay in nanoseconds from the chip select deassert to the next chip
select assert. If not set, the minimum supported delay is used.
pinctrl-0:
type: phandles
required: true
nxp,rx-tx-chn-share:
type: boolean
description: If the edma channel shared with tx and rx
ctar:
type: int
description: |
ctar register selection range form 0-1 for master mode, 0 for slave mode
sample-point:
type: int
description: |
Controls when the DSPI master samples SIN in the Modified Transfer Format.
This field is valid only when the CPHA bit in the CTAR register is 0.
continuous-sck:
type: boolean
description: |
continuous SCK enable. Note that the continuous SCK is only
supported for CPHA = 1.
rx-fifo-overwrite:
type: boolean
description: |
receive FIFO overflow overwrite enable. If ROOE = 0, the incoming
data is ignored and the data from the transfer that generated the overflow
is also ignored. If ROOE = 1, the incoming data is shifted to the
shift register.
modified-timing-format:
type: boolean
description: |
Enables a modified transfer format to be used if true.
tx-fifo-size:
type: int
description: |
tx fifo size
rx-fifo-size:
type: int
description: |
rx fifo size