| Maxime Ripard | 101e6fc | 2019-05-20 16:50:35 +0200 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/spi/allwinner,sun6i-a31-spi.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Allwinner A31 SPI Controller Device Tree Bindings |
| 8 | |
| 9 | allOf: |
| 10 | - $ref: "spi-controller.yaml" |
| 11 | |
| 12 | maintainers: |
| 13 | - Chen-Yu Tsai <wens@csie.org> |
| 14 | - Maxime Ripard <maxime.ripard@bootlin.com> |
| 15 | |
| 16 | properties: |
| 17 | "#address-cells": true |
| 18 | "#size-cells": true |
| 19 | |
| 20 | compatible: |
| 21 | enum: |
| 22 | - allwinner,sun6i-a31-spi |
| 23 | - allwinner,sun8i-h3-spi |
| 24 | |
| 25 | reg: |
| 26 | maxItems: 1 |
| 27 | |
| 28 | interrupts: |
| 29 | maxItems: 1 |
| 30 | |
| 31 | clocks: |
| 32 | items: |
| 33 | - description: Bus Clock |
| 34 | - description: Module Clock |
| 35 | |
| 36 | clock-names: |
| 37 | items: |
| 38 | - const: ahb |
| 39 | - const: mod |
| 40 | |
| 41 | resets: |
| 42 | maxItems: 1 |
| 43 | |
| 44 | dmas: |
| 45 | items: |
| 46 | - description: RX DMA Channel |
| 47 | - description: TX DMA Channel |
| 48 | |
| 49 | dma-names: |
| 50 | items: |
| 51 | - const: rx |
| 52 | - const: tx |
| 53 | |
| 54 | num-cs: true |
| 55 | |
| 56 | patternProperties: |
| 57 | "^.*@[0-9a-f]+": |
| 58 | properties: |
| 59 | reg: |
| 60 | items: |
| 61 | minimum: 0 |
| 62 | maximum: 4 |
| 63 | |
| 64 | spi-rx-bus-width: |
| 65 | const: 1 |
| 66 | |
| 67 | spi-tx-bus-width: |
| 68 | const: 1 |
| 69 | |
| 70 | required: |
| 71 | - compatible |
| 72 | - reg |
| 73 | - interrupts |
| 74 | - clocks |
| 75 | - clock-names |
| 76 | |
| 77 | additionalProperties: false |
| 78 | |
| 79 | examples: |
| 80 | - | |
| 81 | spi1: spi@1c69000 { |
| 82 | compatible = "allwinner,sun6i-a31-spi"; |
| 83 | reg = <0x01c69000 0x1000>; |
| 84 | interrupts = <0 66 4>; |
| 85 | clocks = <&ahb1_gates 21>, <&spi1_clk>; |
| 86 | clock-names = "ahb", "mod"; |
| 87 | resets = <&ahb1_rst 21>; |
| 88 | #address-cells = <1>; |
| 89 | #size-cells = <0>; |
| 90 | }; |
| 91 | |
| 92 | - | |
| 93 | spi0: spi@1c68000 { |
| 94 | compatible = "allwinner,sun8i-h3-spi"; |
| 95 | reg = <0x01c68000 0x1000>; |
| 96 | interrupts = <0 65 4>; |
| 97 | clocks = <&ccu 30>, <&ccu 82>; |
| 98 | clock-names = "ahb", "mod"; |
| 99 | dmas = <&dma 23>, <&dma 23>; |
| 100 | dma-names = "rx", "tx"; |
| 101 | resets = <&ccu 15>; |
| 102 | #address-cells = <1>; |
| 103 | #size-cells = <0>; |
| 104 | }; |
| 105 | |
| 106 | ... |