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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/marvell,armada-3700-uart-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Marvell Armada 3720 UART clocks
maintainers:
- Pali Rohár <pali@kernel.org>
properties:
compatible:
const: marvell,armada-3700-uart-clock
reg:
items:
- description: UART Clock Control Register
- description: UART 2 Baud Rate Divisor Register
clocks:
description: |
List of parent clocks suitable for UART from following set:
"TBG-A-P", "TBG-B-P", "TBG-A-S", "TBG-B-S", "xtal"
UART clock can use one from this set and when more are provided
then kernel would choose and configure the most suitable one.
It is suggest to specify at least one TBG clock to achieve
baudrates above 230400 and also to specify clock which bootloader
used for UART (most probably xtal) for smooth boot log on UART.
clock-names:
items:
- const: TBG-A-P
- const: TBG-B-P
- const: TBG-A-S
- const: TBG-B-S
- const: xtal
minItems: 1
'#clock-cells':
const: 1
required:
- compatible
- reg
- clocks
- clock-names
- '#clock-cells'
additionalProperties: false
examples:
- |
uartclk: clock-controller@12010 {
compatible = "marvell,armada-3700-uart-clock";
reg = <0x12010 0x4>, <0x12210 0x4>;
clocks = <&tbg 0>, <&tbg 1>, <&tbg 2>, <&tbg 3>, <&xtalclk>;
clock-names = "TBG-A-P", "TBG-B-P", "TBG-A-S", "TBG-B-S", "xtal";
#clock-cells = <1>;
};
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