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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/renesas,sh-msiof.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas MSIOF SPI controller
maintainers:
- Geert Uytterhoeven <geert+renesas@glider.be>
allOf:
- $ref: spi-controller.yaml#
properties:
compatible:
oneOf:
- items:
- const: renesas,msiof-sh73a0 # SH-Mobile AG5
- const: renesas,sh-mobile-msiof # generic SH-Mobile compatible
# device
- items:
- enum:
- renesas,msiof-r8a7742 # RZ/G1H
- renesas,msiof-r8a7743 # RZ/G1M
- renesas,msiof-r8a7744 # RZ/G1N
- renesas,msiof-r8a7745 # RZ/G1E
- renesas,msiof-r8a77470 # RZ/G1C
- renesas,msiof-r8a7790 # R-Car H2
- renesas,msiof-r8a7791 # R-Car M2-W
- renesas,msiof-r8a7792 # R-Car V2H
- renesas,msiof-r8a7793 # R-Car M2-N
- renesas,msiof-r8a7794 # R-Car E2
- const: renesas,rcar-gen2-msiof # generic R-Car Gen2 and RZ/G1
# compatible device
- items:
- enum:
- renesas,msiof-r8a774a1 # RZ/G2M
- renesas,msiof-r8a774b1 # RZ/G2N
- renesas,msiof-r8a774c0 # RZ/G2E
- renesas,msiof-r8a774e1 # RZ/G2H
- renesas,msiof-r8a7795 # R-Car H3
- renesas,msiof-r8a7796 # R-Car M3-W
- renesas,msiof-r8a77961 # R-Car M3-W+
- renesas,msiof-r8a77965 # R-Car M3-N
- renesas,msiof-r8a77970 # R-Car V3M
- renesas,msiof-r8a77980 # R-Car V3H
- renesas,msiof-r8a77990 # R-Car E3
- renesas,msiof-r8a77995 # R-Car D3
- renesas,msiof-r8a779a0 # R-Car V3U
- const: renesas,rcar-gen3-msiof # generic R-Car Gen3 and RZ/G2
# compatible device
- items:
- const: renesas,sh-msiof # deprecated
reg:
minItems: 1
maxItems: 2
oneOf:
- items:
- description: CPU and DMA engine registers
- items:
- description: CPU registers
- description: DMA engine registers
interrupts:
maxItems: 1
clocks:
maxItems: 1
num-cs:
description: |
Total number of chip selects (default is 1).
Up to 3 native chip selects are supported:
0: MSIOF_SYNC
1: MSIOF_SS1
2: MSIOF_SS2
Hardware limitations related to chip selects:
- Native chip selects are always deasserted in between transfers
that are part of the same message. Use cs-gpios to work around
this.
- All slaves using native chip selects must use the same spi-cs-high
configuration. Use cs-gpios to work around this.
- When using GPIO chip selects, at least one native chip select must
be left unused, as it will be driven anyway.
minimum: 1
maximum: 3
default: 1
dmas:
minItems: 2
maxItems: 4
dma-names:
minItems: 2
maxItems: 4
items:
enum: [ tx, rx ]
renesas,dtdl:
description: delay sync signal (setup) in transmit mode.
$ref: /schemas/types.yaml#/definitions/uint32
enum:
- 0 # no bit delay
- 50 # 0.5-clock-cycle delay
- 100 # 1-clock-cycle delay
- 150 # 1.5-clock-cycle delay
- 200 # 2-clock-cycle delay
renesas,syncdl:
description: delay sync signal (hold) in transmit mode
$ref: /schemas/types.yaml#/definitions/uint32
enum:
- 0 # no bit delay
- 50 # 0.5-clock-cycle delay
- 100 # 1-clock-cycle delay
- 150 # 1.5-clock-cycle delay
- 200 # 2-clock-cycle delay
- 300 # 3-clock-cycle delay
renesas,tx-fifo-size:
# deprecated for soctype-specific bindings
description: |
Override the default TX fifo size. Unit is words. Ignored if 0.
$ref: /schemas/types.yaml#/definitions/uint32
default: 64
renesas,rx-fifo-size:
# deprecated for soctype-specific bindings
description: |
Override the default RX fifo size. Unit is words. Ignored if 0.
$ref: /schemas/types.yaml#/definitions/uint32
default: 64
required:
- compatible
- reg
- interrupts
- '#address-cells'
- '#size-cells'
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/r8a7791-clock.h>
#include <dt-bindings/interrupt-controller/irq.h>
msiof0: spi@e6e20000 {
compatible = "renesas,msiof-r8a7791", "renesas,rcar-gen2-msiof";
reg = <0xe6e20000 0x0064>;
interrupts = <0 156 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp0_clks R8A7791_CLK_MSIOF0>;
dmas = <&dmac0 0x51>, <&dmac0 0x52>;
dma-names = "tx", "rx";
#address-cells = <1>;
#size-cells = <0>;
};
|
