1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright 2019,2020 Lubomir Rintel <lkundrak@v3.sk>
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/marvell,mmp2-ssp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: PXA2xx SSP SPI Controller
maintainers:
- Lubomir Rintel <lkundrak@v3.sk>
properties:
compatible:
enum:
- marvell,mmp2-ssp
- mrvl,ce4100-ssp
- mvrl,pxa168-ssp
- mrvl,pxa25x-ssp
- mvrl,pxa25x-nssp
- mrvl,pxa27x-ssp
- mrvl,pxa3xx-ssp
- mrvl,pxa910-ssp
interrupts:
maxItems: 1
reg:
maxItems: 1
clocks:
maxItems: 1
dmas:
items:
- description: Receive DMA
- description: Transmit DMA
dma-names:
items:
- const: rx
- const: tx
ready-gpios:
description: |
GPIO used to signal a SPI master that the FIFO is filled and we're
ready to service a transfer. Only useful in slave mode.
maxItems: 1
required:
- compatible
- reg
- interrupts
- clocks
dependencies:
ready-gpios: [ spi-slave ]
allOf:
- $ref: spi-controller.yaml#
- if:
properties:
compatible:
contains:
const: marvell,mmp2-ssp
then:
properties:
dmas: false
dma-names: false
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/marvell,mmp2.h>
spi@d4035000 {
compatible = "marvell,mmp2-ssp";
#address-cells = <1>;
#size-cells = <0>;
reg = <0xd4035000 0x1000>;
clocks = <&soc_clocks MMP2_CLK_SSP0>;
interrupts = <0>;
};
...
|
