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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/omap-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: SPI controller bindings for OMAP and K3 SoCs
maintainers:
- Aswath Govindraju <a-govindraju@ti.com>
allOf:
- $ref: spi-controller.yaml#
properties:
compatible:
oneOf:
- items:
- enum:
- ti,am654-mcspi
- ti,am4372-mcspi
- const: ti,omap4-mcspi
- items:
- enum:
- ti,omap2-mcspi
- ti,omap4-mcspi
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 1
power-domains:
maxItems: 1
ti,spi-num-cs:
$ref: /schemas/types.yaml#/definitions/uint32
description: Number of chipselect supported by the instance.
minimum: 1
maximum: 4
ti,hwmods:
$ref: /schemas/types.yaml#/definitions/string
description:
Must be "mcspi<n>", n being the instance number (1-based).
This property is applicable only on legacy platforms mainly omap2/3
and ti81xx and should not be used on other platforms.
deprecated: true
ti,pindir-d0-out-d1-in:
description:
Select the D0 pin as output and D1 as input. The default is D0
as input and D1 as output.
type: boolean
dmas:
description:
List of DMA specifiers with the controller specific format as
described in the generic DMA client binding. A tx and rx
specifier is required for each chip select.
minItems: 1
maxItems: 8
dma-names:
description:
List of DMA request names. These strings correspond 1:1 with
the DMA sepecifiers listed in dmas. The string names is to be
"rxN" and "txN" for RX and TX requests, respectively. Where N
is the chip select number.
minItems: 1
maxItems: 8
required:
- compatible
- reg
- interrupts
unevaluatedProperties: false
if:
properties:
compatible:
oneOf:
- const: ti,omap2-mcspi
- const: ti,omap4-mcspi
then:
properties:
ti,hwmods:
items:
- pattern: "^mcspi([1-9])$"
else:
properties:
ti,hwmods: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/soc/ti,sci_pm_domain.h>
spi@2100000 {
compatible = "ti,am654-mcspi","ti,omap4-mcspi";
reg = <0x2100000 0x400>;
interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&k3_clks 137 1>;
power-domains = <&k3_pds 137 TI_SCI_PD_EXCLUSIVE>;
#address-cells = <1>;
#size-cells = <0>;
dmas = <&main_udmap 0xc500>, <&main_udmap 0x4500>;
dma-names = "tx0", "rx0";
};
|
