# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
%YAML 1.2
|
---
|
$id: http://devicetree.org/schemas/serial/fsl-lpuart.yaml#
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
title: Freescale low power universal asynchronous receiver/transmitter (lpuart)
|
|
maintainers:
|
- Fugang Duan <fugang.duan@nxp.com>
|
|
allOf:
|
- $ref: "rs485.yaml"
|
|
properties:
|
compatible:
|
oneOf:
|
- enum:
|
- fsl,vf610-lpuart
|
- fsl,ls1021a-lpuart
|
- fsl,ls1028a-lpuart
|
- fsl,imx7ulp-lpuart
|
- fsl,imx8qm-lpuart
|
- items:
|
- const: fsl,imx8qxp-lpuart
|
- const: fsl,imx7ulp-lpuart
|
|
reg:
|
maxItems: 1
|
|
interrupts:
|
maxItems: 1
|
|
clocks:
|
items:
|
- description: ipg clock
|
- description: baud clock
|
minItems: 1
|
maxItems: 2
|
|
clock-names:
|
items:
|
- const: ipg
|
- const: baud
|
minItems: 1
|
maxItems: 2
|
|
dmas:
|
items:
|
- description: DMA controller phandle and request line for RX
|
- description: DMA controller phandle and request line for TX
|
|
dma-names:
|
items:
|
- const: rx
|
- const: tx
|
|
rs485-rts-active-low: true
|
linux,rs485-enabled-at-boot-time: true
|
|
required:
|
- compatible
|
- reg
|
- interrupts
|
- clocks
|
- clock-names
|
|
unevaluatedProperties: false
|
|
examples:
|
- |
|
#include <dt-bindings/clock/vf610-clock.h>
|
|
serial@40027000 {
|
compatible = "fsl,vf610-lpuart";
|
reg = <0x40027000 0x1000>;
|
interrupts = <0 61 0x00>;
|
clocks = <&clks VF610_CLK_UART0>;
|
clock-names = "ipg";
|
dmas = <&edma0 0 2>, <&edma0 0 3>;
|
dma-names = "rx","tx";
|
};
|
