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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/serial/marvell,armada-3700-uart.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Marvell Armada-3700 UART
maintainers:
- Pali Rohár <pali@kernel.org>
description:
Marvell UART is a non standard UART used in some of Marvell EBU SoCs (e.g.
Armada-3700).
properties:
compatible:
enum:
- marvell,armada-3700-uart
- marvell,armada-3700-uart-ext
reg:
maxItems: 1
clocks:
maxItems: 1
description:
UART reference clock used to derive the baud rate. If absent, only fixed
baud rate from the bootloader is supported.
interrupts:
minItems: 2
items:
- description: UART sum interrupt
- description: UART TX interrupt
- description: UART RX interrupt
interrupt-names:
minItems: 2
maxItems: 3
required:
- compatible
- reg
- interrupts
- interrupt-names
unevaluatedProperties: false
allOf:
- $ref: /schemas/serial/serial.yaml#
- if:
properties:
compatible:
const: marvell,armada-3700-uart-ext
then:
properties:
interrupts:
maxItems: 2
interrupt-names:
items:
- const: uart-tx
- const: uart-rx
else:
properties:
interrupts:
minItems: 3
interrupt-names:
items:
- const: uart-sum
- const: uart-tx
- const: uart-rx
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
serial@12000 {
compatible = "marvell,armada-3700-uart";
reg = <0x12000 0x18>;
clocks = <&uartclk 0>;
interrupts =
<GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "uart-sum", "uart-tx", "uart-rx";
};
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
serial@12200 {
compatible = "marvell,armada-3700-uart-ext";
reg = <0x12200 0x30>;
clocks = <&uartclk 1>;
interrupts =
<GIC_SPI 30 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 31 IRQ_TYPE_EDGE_RISING>;
interrupt-names = "uart-tx", "uart-rx";
};
|
