1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/spi/arm,pl0 4 $id: http://devicetree.org/schemas/spi/arm,pl022-peripheral-props.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Peripheral-specific properties for Arm 7 title: Peripheral-specific properties for Arm PL022 SPI controller
8 8
9 maintainers: 9 maintainers:
10 - Linus Walleij <linus.walleij@linaro.org> 10 - Linus Walleij <linus.walleij@linaro.org>
11 11
12 select: false 12 select: false
13 13
14 properties: 14 properties:
15 pl022,interface: 15 pl022,interface:
16 description: SPI interface type 16 description: SPI interface type
17 $ref: /schemas/types.yaml#/definitions/uin 17 $ref: /schemas/types.yaml#/definitions/uint32
18 enum: 18 enum:
19 - 0 # SPI 19 - 0 # SPI
20 - 1 # Texas Instruments Synchronous 20 - 1 # Texas Instruments Synchronous Serial Frame Format
21 - 2 # Microwire (Half Duplex) 21 - 2 # Microwire (Half Duplex)
22 22
23 pl022,com-mode: 23 pl022,com-mode:
24 description: Specifies the transfer mode 24 description: Specifies the transfer mode
25 $ref: /schemas/types.yaml#/definitions/uin 25 $ref: /schemas/types.yaml#/definitions/uint32
26 enum: 26 enum:
27 - 0 # interrupt mode 27 - 0 # interrupt mode
28 - 1 # polling mode 28 - 1 # polling mode
29 - 2 # DMA mode 29 - 2 # DMA mode
30 default: 1 30 default: 1
31 31
32 pl022,rx-level-trig: 32 pl022,rx-level-trig:
33 description: Rx FIFO watermark level 33 description: Rx FIFO watermark level
34 $ref: /schemas/types.yaml#/definitions/uin 34 $ref: /schemas/types.yaml#/definitions/uint32
35 minimum: 0 35 minimum: 0
36 maximum: 4 36 maximum: 4
37 37
38 pl022,tx-level-trig: 38 pl022,tx-level-trig:
39 description: Tx FIFO watermark level 39 description: Tx FIFO watermark level
40 $ref: /schemas/types.yaml#/definitions/uin 40 $ref: /schemas/types.yaml#/definitions/uint32
41 minimum: 0 41 minimum: 0
42 maximum: 4 42 maximum: 4
43 43
44 pl022,ctrl-len: 44 pl022,ctrl-len:
45 description: Microwire interface - Control 45 description: Microwire interface - Control length
46 $ref: /schemas/types.yaml#/definitions/uin 46 $ref: /schemas/types.yaml#/definitions/uint32
47 minimum: 0x03 47 minimum: 0x03
48 maximum: 0x1f 48 maximum: 0x1f
49 49
50 pl022,wait-state: 50 pl022,wait-state:
51 description: Microwire interface - Wait st 51 description: Microwire interface - Wait state
52 $ref: /schemas/types.yaml#/definitions/uin 52 $ref: /schemas/types.yaml#/definitions/uint32
53 enum: [0, 1] 53 enum: [0, 1]
54 54
55 pl022,duplex: 55 pl022,duplex:
56 description: Microwire interface - Full/Ha 56 description: Microwire interface - Full/Half duplex
57 $ref: /schemas/types.yaml#/definitions/uin 57 $ref: /schemas/types.yaml#/definitions/uint32
58 enum: [0, 1] 58 enum: [0, 1]
59 59
60 additionalProperties: true 60 additionalProperties: true
61 ... 61 ...
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