mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
112 lines
3.0 KiB
112 lines
3.0 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
|
%YAML 1.2 |
|
--- |
|
$id: http://devicetree.org/schemas/serial/fsl-imx-uart.yaml# |
|
$schema: http://devicetree.org/meta-schemas/core.yaml# |
|
|
|
title: Freescale i.MX Universal Asynchronous Receiver/Transmitter (UART) |
|
|
|
maintainers: |
|
- Fabio Estevam <[email protected]> |
|
|
|
allOf: |
|
- $ref: "serial.yaml" |
|
- $ref: "rs485.yaml" |
|
|
|
properties: |
|
compatible: |
|
oneOf: |
|
- const: fsl,imx1-uart |
|
- const: fsl,imx21-uart |
|
- items: |
|
- enum: |
|
- fsl,imx25-uart |
|
- fsl,imx27-uart |
|
- fsl,imx31-uart |
|
- fsl,imx35-uart |
|
- fsl,imx50-uart |
|
- fsl,imx51-uart |
|
- fsl,imx53-uart |
|
- fsl,imx6q-uart |
|
- const: fsl,imx21-uart |
|
- items: |
|
- enum: |
|
- fsl,imx6sl-uart |
|
- fsl,imx6sll-uart |
|
- fsl,imx6sx-uart |
|
- const: fsl,imx6q-uart |
|
- const: fsl,imx21-uart |
|
- items: |
|
- enum: |
|
- fsl,imx6ul-uart |
|
- fsl,imx7d-uart |
|
- fsl,imx8mm-uart |
|
- fsl,imx8mn-uart |
|
- fsl,imx8mp-uart |
|
- fsl,imx8mq-uart |
|
- const: fsl,imx6q-uart |
|
|
|
reg: |
|
maxItems: 1 |
|
|
|
interrupts: |
|
maxItems: 1 |
|
|
|
fsl,dte-mode: |
|
$ref: /schemas/types.yaml#/definitions/flag |
|
description: | |
|
Indicate the uart works in DTE mode. The uart works in DCE mode by default. |
|
|
|
fsl,inverted-tx: |
|
$ref: /schemas/types.yaml#/definitions/flag |
|
description: | |
|
Indicate that the hardware attached to the peripheral inverts the signal |
|
transmitted, and that the peripheral should invert its output using the |
|
INVT registers. |
|
|
|
fsl,inverted-rx: |
|
$ref: /schemas/types.yaml#/definitions/flag |
|
description: | |
|
Indicate that the hardware attached to the peripheral inverts the signal |
|
received, and that the peripheral should invert its input using the |
|
INVR registers. |
|
|
|
fsl,dma-info: |
|
$ref: /schemas/types.yaml#/definitions/uint32-array |
|
minItems: 2 |
|
maxItems: 2 |
|
description: | |
|
First cell contains the size of DMA buffer chunks, second cell contains |
|
the amount of chunks used for the device. Multiplying both numbers is |
|
the total size of memory used for receiving data. |
|
When not being configured the system will use default settings, which |
|
are sensible for most use cases. If you need low latency processing on |
|
slow connections this needs to be configured appropriately. |
|
|
|
uart-has-rtscts: true |
|
|
|
rs485-rts-delay: true |
|
rs485-rts-active-low: true |
|
rs485-rx-during-tx: true |
|
linux,rs485-enabled-at-boot-time: true |
|
|
|
required: |
|
- compatible |
|
- reg |
|
- interrupts |
|
|
|
unevaluatedProperties: false |
|
|
|
examples: |
|
- | |
|
aliases { |
|
serial0 = &uart1; |
|
}; |
|
|
|
uart1: serial@73fbc000 { |
|
compatible = "fsl,imx51-uart", "fsl,imx21-uart"; |
|
reg = <0x73fbc000 0x4000>; |
|
interrupts = <31>; |
|
uart-has-rtscts; |
|
fsl,dte-mode; |
|
};
|
|
|