| Anson Huang | 178984d | 2020-08-18 11:34:45 +0800 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/serial/fsl-lpuart.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Freescale low power universal asynchronous receiver/transmitter (lpuart) |
| 8 | |
| 9 | maintainers: |
| 10 | - Fugang Duan <fugang.duan@nxp.com> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: "rs485.yaml" |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| Krzysztof Kozlowski | cc4521c | 2020-09-04 17:23:54 +0200 | [diff] [blame] | 17 | oneOf: |
| 18 | - enum: |
| 19 | - fsl,vf610-lpuart |
| 20 | - fsl,ls1021a-lpuart |
| 21 | - fsl,ls1028a-lpuart |
| 22 | - fsl,imx7ulp-lpuart |
| 23 | - fsl,imx8qm-lpuart |
| 24 | - items: |
| 25 | - const: fsl,imx8qxp-lpuart |
| 26 | - const: fsl,imx7ulp-lpuart |
| Anson Huang | 178984d | 2020-08-18 11:34:45 +0800 | [diff] [blame] | 27 | |
| 28 | reg: |
| 29 | maxItems: 1 |
| 30 | |
| 31 | interrupts: |
| 32 | maxItems: 1 |
| 33 | |
| 34 | clocks: |
| 35 | items: |
| 36 | - description: ipg clock |
| 37 | - description: baud clock |
| 38 | minItems: 1 |
| Anson Huang | 178984d | 2020-08-18 11:34:45 +0800 | [diff] [blame] | 39 | |
| 40 | clock-names: |
| 41 | items: |
| 42 | - const: ipg |
| 43 | - const: baud |
| 44 | minItems: 1 |
| Anson Huang | 178984d | 2020-08-18 11:34:45 +0800 | [diff] [blame] | 45 | |
| 46 | dmas: |
| 47 | items: |
| 48 | - description: DMA controller phandle and request line for RX |
| 49 | - description: DMA controller phandle and request line for TX |
| 50 | |
| 51 | dma-names: |
| 52 | items: |
| 53 | - const: rx |
| 54 | - const: tx |
| 55 | |
| 56 | rs485-rts-active-low: true |
| 57 | linux,rs485-enabled-at-boot-time: true |
| 58 | |
| 59 | required: |
| 60 | - compatible |
| 61 | - reg |
| 62 | - interrupts |
| 63 | - clocks |
| 64 | - clock-names |
| 65 | |
| 66 | unevaluatedProperties: false |
| 67 | |
| 68 | examples: |
| 69 | - | |
| 70 | #include <dt-bindings/clock/vf610-clock.h> |
| 71 | |
| 72 | serial@40027000 { |
| 73 | compatible = "fsl,vf610-lpuart"; |
| 74 | reg = <0x40027000 0x1000>; |
| 75 | interrupts = <0 61 0x00>; |
| 76 | clocks = <&clks VF610_CLK_UART0>; |
| 77 | clock-names = "ipg"; |
| 78 | dmas = <&edma0 0 2>, <&edma0 0 3>; |
| 79 | dma-names = "rx","tx"; |
| 80 | }; |