| # 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 <mripard@kernel.org> |
| |
| properties: |
| "#address-cells": true |
| "#size-cells": true |
| |
| compatible: |
| oneOf: |
| - const: allwinner,sun6i-a31-spi |
| - const: allwinner,sun8i-h3-spi |
| - items: |
| - enum: |
| - allwinner,sun8i-r40-spi |
| - allwinner,sun50i-h6-spi |
| - const: 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>; |
| }; |
| |
| ... |
