96 lines
2.0 KiB
YAML
96 lines
2.0 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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$id: http://devicetree.org/schemas/serial/brcm,bcm7271-uart.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Broadcom 8250 based serial port devicetree bindings
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maintainers:
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- Al Cooper <alcooperx@gmail.com>
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allOf:
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- $ref: serial.yaml#
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description: |+
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The Broadcom UART is based on the basic 8250 UART but with
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enhancements for more accurate high speed baud rates and support
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for DMA.
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properties:
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compatible:
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items:
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- enum:
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- brcm,bcm7271-uart
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- brcm,bcm7278-uart
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reg:
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minItems: 1
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maxItems: 5
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reg-names:
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description: The UART register block and optionally the DMA register blocks.
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oneOf:
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- items:
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- const: uart
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- items:
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- const: uart
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- const: dma_arb
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- const: dma_rx
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- const: dma_tx
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- const: dma_intr2
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clocks:
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minItems: 1
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clock-names:
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const: sw_baud
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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: The UART interrupt and optionally the DMA interrupt.
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minItems: 1
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items:
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- const: uart
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- const: dma
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required:
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- compatible
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- reg
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- reg-names
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- clocks
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- clock-names
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- interrupts
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- interrupt-names
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unevaluatedProperties: false
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examples:
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- |
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serial@840d000 {
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compatible = "brcm,bcm7271-uart";
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reg = <0x840d000 0x20>;
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reg-names = "uart";
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interrupts = <0x0 0x62 0x4>;
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interrupt-names = "uart";
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clocks = <&scmi_clk 190>;
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clock-names = "sw_baud";
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};
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serial@840e000 {
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compatible = "brcm,bcm7271-uart";
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reg = <0x840e000 0x20>,
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<0x840e080 0x8>,
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<0x840e100 0xa8>,
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<0x840e200 0x4c>,
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<0x840e300 0x30>;
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reg-names = "uart", "dma_arb", "dma_rx", "dma_tx", "dma_intr2";
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interrupts = <0x0 0x62 0x4>, <0x0 0x75 0x4>;
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interrupt-names = "uart", "dma";
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clocks = <&scmi_clk 190>;
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clock-names = "sw_baud";
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};
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