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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/allwinner,sun6i-a31-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Allwinner A31 SPI Controller Device Tree Bindings
allOf:
- $ref: "spi-controller.yaml"
maintainers:
- Chen-Yu Tsai <wens@csie.org>
- Maxime Ripard <maxime.ripard@bootlin.com>
properties:
"#address-cells": true
"#size-cells": true
compatible:
enum:
- allwinner,sun6i-a31-spi
- allwinner,sun8i-h3-spi
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: Bus Clock
- description: Module Clock
clock-names:
items:
- const: ahb
- const: mod
resets:
maxItems: 1
dmas:
items:
- description: RX DMA Channel
- description: TX DMA Channel
dma-names:
items:
- const: rx
- const: tx
num-cs: true
patternProperties:
"^.*@[0-9a-f]+":
type: object
properties:
reg:
items:
minimum: 0
maximum: 4
spi-rx-bus-width:
const: 1
spi-tx-bus-width:
const: 1
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
additionalProperties: false
examples:
- |
spi1: spi@1c69000 {
compatible = "allwinner,sun6i-a31-spi";
reg = <0x01c69000 0x1000>;
interrupts = <0 66 4>;
clocks = <&ahb1_gates 21>, <&spi1_clk>;
clock-names = "ahb", "mod";
resets = <&ahb1_rst 21>;
#address-cells = <1>;
#size-cells = <0>;
};
- |
spi0: spi@1c68000 {
compatible = "allwinner,sun8i-h3-spi";
reg = <0x01c68000 0x1000>;
interrupts = <0 65 4>;
clocks = <&ccu 30>, <&ccu 82>;
clock-names = "ahb", "mod";
dmas = <&dma 23>, <&dma 23>;
dma-names = "rx", "tx";
resets = <&ccu 15>;
#address-cells = <1>;
#size-cells = <0>;
};
...
|
