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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/atmel,at91rm9200-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Atmel SPI device
maintainers:
- Tudor Ambarus <tudor.ambarus@microchip.com>
allOf:
- $ref: spi-controller.yaml#
properties:
compatible:
oneOf:
- const: atmel,at91rm9200-spi
- items:
- const: microchip,sam9x60-spi
- const: atmel,at91rm9200-spi
reg:
maxItems: 1
interrupts:
maxItems: 1
clock-names:
contains:
const: spi_clk
clocks:
maxItems: 1
dmas:
items:
- description: TX DMA Channel
- description: RX DMA Channel
dma-names:
items:
- const: tx
- const: rx
atmel,fifo-size:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
Maximum number of data the RX and TX FIFOs can store for FIFO
capable SPI controllers.
enum: [ 16, 32 ]
required:
- compatible
- reg
- interrupts
- clock-names
- clocks
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
spi1: spi@fffcc000 {
compatible = "atmel,at91rm9200-spi";
reg = <0xfffcc000 0x4000>;
interrupts = <13 IRQ_TYPE_LEVEL_HIGH 5>;
#address-cells = <1>;
#size-cells = <0>;
clocks = <&spi1_clk>;
clock-names = "spi_clk";
cs-gpios = <&pioB 3 GPIO_ACTIVE_HIGH>;
atmel,fifo-size = <32>;
mmc@0 {
compatible = "mmc-spi-slot";
reg = <0>;
gpios = <&pioC 4 GPIO_ACTIVE_HIGH>; /* CD */
spi-max-frequency = <25000000>;
};
};
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