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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/atmel,sama5d2-flexcom.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Microchip Flexcom (Flexible Serial Communication Unit)
maintainers:
- Kavyasree Kotagiri <kavyasree.kotagiri@microchip.com>
description:
The Microchip Flexcom is just a wrapper which embeds a SPI controller,
an I2C controller and an USART. Only one function can be used at a
time and is chosen at boot time according to the device tree.
properties:
compatible:
oneOf:
- const: atmel,sama5d2-flexcom
- items:
- const: microchip,sam9x7-flexcom
- const: atmel,sama5d2-flexcom
- items:
- const: microchip,sama7g5-flexcom
- const: atmel,sama5d2-flexcom
reg:
maxItems: 1
clocks:
maxItems: 1
"#address-cells":
const: 1
"#size-cells":
const: 1
ranges:
description:
One range for the full I/O register region. (including USART,
TWI and SPI registers).
items:
maxItems: 3
atmel,flexcom-mode:
description: |
Specifies the flexcom mode as follows:
1: USART
2: SPI
3: I2C.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 2, 3]
patternProperties:
"^serial@[0-9a-f]+$":
type: object
description:
Child node describing USART. See atmel-usart.txt for details
of USART bindings.
"^spi@[0-9a-f]+$":
type: object
description:
Child node describing SPI. See ../spi/spi_atmel.txt for details
of SPI bindings.
"^i2c@[0-9a-f]+$":
$ref: /schemas/i2c/atmel,at91sam-i2c.yaml
description:
Child node describing I2C.
required:
- compatible
- reg
- clocks
- "#address-cells"
- "#size-cells"
- ranges
- atmel,flexcom-mode
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
flx0: flexcom@f8034000 {
compatible = "atmel,sama5d2-flexcom";
reg = <0xf8034000 0x200>;
clocks = <&flx0_clk>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0xf8034000 0x800>;
atmel,flexcom-mode = <2>;
};
...
|
