| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| # Copyright 2019 Unisoc Inc. |
| %YAML 1.2 |
| --- |
| $id: "http://devicetree.org/schemas/serial/sprd-uart.yaml#" |
| $schema: "http://devicetree.org/meta-schemas/core.yaml#" |
| |
| title: Spreadtrum serial UART |
| |
| maintainers: |
| - Orson Zhai <orsonzhai@gmail.com> |
| - Baolin Wang <baolin.wang7@gmail.com> |
| - Chunyan Zhang <zhang.lyra@gmail.com> |
| |
| properties: |
| compatible: |
| oneOf: |
| - items: |
| - enum: |
| - sprd,sc9860-uart |
| - sprd,sc9863a-uart |
| - const: sprd,sc9836-uart |
| - const: sprd,sc9836-uart |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| minItems: 1 |
| maxItems: 3 |
| |
| clock-names: |
| description: | |
| "enable" for UART module enable clock, "uart" for UART clock, "source" |
| for UART source (parent) clock. |
| items: |
| - const: enable |
| - const: uart |
| - const: source |
| |
| dmas: |
| minItems: 1 |
| maxItems: 2 |
| |
| dma-names: |
| minItems: 1 |
| items: |
| - const: rx |
| - const: tx |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| serial@0 { |
| compatible = "sprd,sc9860-uart", "sprd,sc9836-uart"; |
| reg = <0x0 0x100>; |
| interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>; |
| dma-names = "rx", "tx"; |
| dmas = <&ap_dma 19>, <&ap_dma 20>; |
| clock-names = "enable", "uart", "source"; |
| clocks = <&clk_ap_apb_gates 9>, <&clk_uart0>, <&ext_26m>; |
| }; |
| |
| ... |
