| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | # Copyright 2019 Unisoc Inc. |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/serial/sprd-uart.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: Spreadtrum serial UART |
| 9 | |
| 10 | maintainers: |
| 11 | - Orson Zhai <orsonzhai@gmail.com> |
| 12 | - Baolin Wang <baolin.wang7@gmail.com> |
| 13 | - Chunyan Zhang <zhang.lyra@gmail.com> |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| 17 | oneOf: |
| 18 | - items: |
| 19 | - enum: |
| 20 | - sprd,sc9860-uart |
| 21 | - sprd,sc9863a-uart |
| 22 | - sprd,ums512-uart |
| Tom Rini | 93743d2 | 2024-04-01 09:08:13 -0400 | [diff] [blame] | 23 | - sprd,ums9620-uart |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 24 | - const: sprd,sc9836-uart |
| 25 | - const: sprd,sc9836-uart |
| 26 | |
| 27 | reg: |
| 28 | maxItems: 1 |
| 29 | |
| 30 | interrupts: |
| 31 | maxItems: 1 |
| 32 | |
| 33 | clocks: |
| 34 | minItems: 1 |
| 35 | maxItems: 3 |
| 36 | |
| 37 | clock-names: |
| 38 | description: | |
| 39 | "enable" for UART module enable clock, "uart" for UART clock, "source" |
| 40 | for UART source (parent) clock. |
| 41 | items: |
| 42 | - const: enable |
| 43 | - const: uart |
| 44 | - const: source |
| 45 | |
| 46 | dmas: |
| 47 | minItems: 1 |
| 48 | maxItems: 2 |
| 49 | |
| 50 | dma-names: |
| 51 | minItems: 1 |
| 52 | items: |
| 53 | - const: rx |
| 54 | - const: tx |
| 55 | |
| 56 | required: |
| 57 | - compatible |
| 58 | - reg |
| 59 | - interrupts |
| 60 | |
| 61 | additionalProperties: false |
| 62 | |
| 63 | examples: |
| 64 | - | |
| 65 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 66 | serial@0 { |
| 67 | compatible = "sprd,sc9860-uart", "sprd,sc9836-uart"; |
| 68 | reg = <0x0 0x100>; |
| 69 | interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>; |
| 70 | dma-names = "rx", "tx"; |
| 71 | dmas = <&ap_dma 19>, <&ap_dma 20>; |
| 72 | clock-names = "enable", "uart", "source"; |
| 73 | clocks = <&clk_ap_apb_gates 9>, <&clk_uart0>, <&ext_26m>; |
| 74 | }; |
| 75 | |
| 76 | ... |