| # 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 |
| - fsl,imxrt1050-lpuart |
| - items: |
| - enum: |
| - fsl,imx8qxp-lpuart |
| - fsl,imx8ulp-lpuart |
| - const: fsl,imx7ulp-lpuart |
| - items: |
| - const: fsl,imx8qm-lpuart |
| - const: fsl,imx8qxp-lpuart |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| items: |
| - description: ipg clock |
| - description: baud clock |
| minItems: 1 |
| |
| clock-names: |
| items: |
| - const: ipg |
| - const: baud |
| minItems: 1 |
| |
| 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"; |
| }; |