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# 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
- sprd,ums512-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>;
};
...
|
