122 lines
2.9 KiB
YAML
122 lines
2.9 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/serial/mediatek,uart.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MediaTek Universal Asynchronous Receiver/Transmitter (UART)
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maintainers:
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- Matthias Brugger <matthias.bgg@gmail.com>
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allOf:
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- $ref: serial.yaml#
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description: |
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The MediaTek UART is based on the basic 8250 UART and compatible
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with 16550A, with enhancements for high speed baud rates and
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support for DMA.
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properties:
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compatible:
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oneOf:
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- const: mediatek,mt6577-uart
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- items:
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- enum:
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- mediatek,mt2701-uart
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- mediatek,mt2712-uart
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- mediatek,mt6580-uart
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- mediatek,mt6582-uart
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- mediatek,mt6589-uart
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- mediatek,mt6755-uart
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- mediatek,mt6765-uart
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- mediatek,mt6779-uart
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- mediatek,mt6795-uart
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- mediatek,mt6797-uart
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- mediatek,mt7622-uart
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- mediatek,mt7623-uart
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- mediatek,mt7629-uart
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- mediatek,mt7986-uart
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- mediatek,mt8127-uart
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- mediatek,mt8135-uart
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- mediatek,mt8173-uart
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- mediatek,mt8183-uart
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- mediatek,mt8186-uart
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- mediatek,mt8188-uart
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- mediatek,mt8192-uart
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- mediatek,mt8195-uart
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- mediatek,mt8516-uart
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- const: mediatek,mt6577-uart
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reg:
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description: The base address of the UART register bank
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maxItems: 1
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clocks:
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minItems: 1
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items:
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- description: The clock the baudrate is derived from
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- description: The bus clock for register accesses
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clock-names:
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minItems: 1
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items:
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- const: baud
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- const: bus
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dmas:
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items:
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- description: phandle to TX DMA
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- description: phandle to RX DMA
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dma-names:
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items:
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- const: tx
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- const: rx
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interrupts:
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minItems: 1
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maxItems: 2
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interrupt-names:
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description:
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The UART interrupt and optionally the RX in-band wakeup interrupt.
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minItems: 1
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items:
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- const: uart
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- const: wakeup
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pinctrl-0: true
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pinctrl-1: true
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pinctrl-names:
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minItems: 1
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items:
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- const: default
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- const: sleep
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required:
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- compatible
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- reg
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- clocks
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- interrupts
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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serial@11006000 {
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compatible = "mediatek,mt6589-uart", "mediatek,mt6577-uart";
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reg = <0x11006000 0x400>;
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interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>,
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<GIC_SPI 52 IRQ_TYPE_EDGE_FALLING>;
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interrupt-names = "uart", "wakeup";
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clocks = <&uart_clk>, <&bus_clk>;
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clock-names = "baud", "bus";
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pinctrl-0 = <&uart_pin>;
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pinctrl-1 = <&uart_pin_sleep>;
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pinctrl-names = "default", "sleep";
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};
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