| # 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,ums9632-uart | |
| - const: sprd,sc9632-uart | |
| - items: | |
| - enum: | |
| - sprd,sc9860-uart | |
| - sprd,sc9863a-uart | |
| - sprd,ums512-uart | |
| - sprd,ums9620-uart | |
| - const: sprd,sc9836-uart | |
| - enum: | |
| - sprd,sc9632-uart | |
| - 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>; | |
| }; | |
| ... |