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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/xlnx,zynq-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Xilinx Zynq Pinctrl
maintainers:
- Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
description: |
Please refer to pinctrl-bindings.txt in this directory for details of the
common pinctrl bindings used by client devices, including the meaning of the
phrase "pin configuration node".
Zynq's pin configuration nodes act as a container for an arbitrary number of
subnodes. Each of these subnodes represents some desired configuration for a
pin, a group, or a list of pins or groups. This configuration can include the
mux function to select on those pin(s)/group(s), and various pin configuration
parameters, such as pull-up, slew rate, etc.
Each configuration node can consist of multiple nodes describing the pinmux and
pinconf options. Those nodes can be pinmux nodes or pinconf nodes.
The name of each subnode is not important; all subnodes should be enumerated
and processed purely based on their content.
properties:
compatible:
const: xlnx,zynq-pinctrl
reg:
description: Specifies the base address and size of the SLCR space.
maxItems: 1
syscon:
description:
phandle to the SLCR.
patternProperties:
'^(.*-)?(default|gpio-grp)$':
type: object
patternProperties:
'^mux':
type: object
description:
Pinctrl node's client devices use subnodes for pin muxes,
which in turn use below standard properties.
$ref: pinmux-node.yaml#
properties:
groups:
description:
List of groups to select (either this or "pins" must be
specified), available groups for this subnode.
items:
enum: [ethernet0_0_grp, ethernet1_0_grp, mdio0_0_grp,
mdio1_0_grp, qspi0_0_grp, qspi1_0_grp, qspi_fbclk,
qspi_cs1_grp, spi0_0_grp, spi0_1_grp, spi0_2_grp,
spi0_0_ss0, spi0_0_ss1, spi0_0_ss2, spi0_1_ss0,
spi0_1_ss1, spi0_1_ss2, spi0_2_ss0, spi0_2_ss1,
spi0_2_ss2, spi1_0_grp, spi1_1_grp, spi1_2_grp,
spi1_3_grp, spi1_0_ss0, spi1_0_ss1, spi1_0_ss2,
spi1_1_ss0, spi1_1_ss1, spi1_1_ss2, spi1_2_ss0,
spi1_2_ss1, spi1_2_ss2, spi1_3_ss0, spi1_3_ss1,
spi1_3_ss2, sdio0_0_grp, sdio0_1_grp, sdio0_2_grp,
sdio1_0_grp, sdio1_1_grp, sdio1_2_grp, sdio1_3_grp,
sdio0_emio_wp, sdio0_emio_cd, sdio1_emio_wp,
sdio1_emio_cd, smc0_nor, smc0_nor_cs1_grp,
smc0_nor_addr25_grp, smc0_nand, can0_0_grp, can0_1_grp,
can0_2_grp, can0_3_grp, can0_4_grp, can0_5_grp,
can0_6_grp, can0_7_grp, can0_8_grp, can0_9_grp,
can0_10_grp, can1_0_grp, can1_1_grp, can1_2_grp,
can1_3_grp, can1_4_grp, can1_5_grp, can1_6_grp,
can1_7_grp, can1_8_grp, can1_9_grp, can1_10_grp,
can1_11_grp, uart0_0_grp, uart0_1_grp, uart0_2_grp,
uart0_3_grp, uart0_4_grp, uart0_5_grp, uart0_6_grp,
uart0_7_grp, uart0_8_grp, uart0_9_grp, uart0_10_grp,
uart1_0_grp, uart1_1_grp, uart1_2_grp, uart1_3_grp,
uart1_4_grp, uart1_5_grp, uart1_6_grp, uart1_7_grp,
uart1_8_grp, uart1_9_grp, uart1_10_grp, uart1_11_grp,
i2c0_0_grp, i2c0_1_grp, i2c0_2_grp, i2c0_3_grp,
i2c0_4_grp, i2c0_5_grp, i2c0_6_grp, i2c0_7_grp,
i2c0_8_grp, i2c0_9_grp, i2c0_10_grp, i2c1_0_grp,
i2c1_1_grp, i2c1_2_grp, i2c1_3_grp, i2c1_4_grp,
i2c1_5_grp, i2c1_6_grp, i2c1_7_grp, i2c1_8_grp,
i2c1_9_grp, i2c1_10_grp, ttc0_0_grp, ttc0_1_grp,
ttc0_2_grp, ttc1_0_grp, ttc1_1_grp, ttc1_2_grp,
swdt0_0_grp, swdt0_1_grp, swdt0_2_grp, swdt0_3_grp,
swdt0_4_grp, gpio0_0_grp, gpio0_1_grp, gpio0_2_grp,
gpio0_3_grp, gpio0_4_grp, gpio0_5_grp, gpio0_6_grp,
gpio0_7_grp, gpio0_8_grp, gpio0_9_grp, gpio0_10_grp,
gpio0_11_grp, gpio0_12_grp, gpio0_13_grp, gpio0_14_grp,
gpio0_15_grp, gpio0_16_grp, gpio0_17_grp, gpio0_18_grp,
gpio0_19_grp, gpio0_20_grp, gpio0_21_grp, gpio0_22_grp,
gpio0_23_grp, gpio0_24_grp, gpio0_25_grp, gpio0_26_grp,
gpio0_27_grp, gpio0_28_grp, gpio0_29_grp, gpio0_30_grp,
gpio0_31_grp, gpio0_32_grp, gpio0_33_grp, gpio0_34_grp,
gpio0_35_grp, gpio0_36_grp, gpio0_37_grp, gpio0_38_grp,
gpio0_39_grp, gpio0_40_grp, gpio0_41_grp, gpio0_42_grp,
gpio0_43_grp, gpio0_44_grp, gpio0_45_grp, gpio0_46_grp,
gpio0_47_grp, gpio0_48_grp, gpio0_49_grp, gpio0_50_grp,
gpio0_51_grp, gpio0_52_grp, gpio0_53_grp, usb0_0_grp,
usb1_0_grp]
maxItems: 54
function:
description:
Specify the alternative function to be configured for the
given pin groups.
enum: [ethernet0, ethernet1, mdio0, mdio1, qspi0, qspi1, qspi_fbclk,
qspi_cs1, spi0, spi0_ss, spi1, spi1_ss, sdio0, sdio0_pc,
sdio0_cd, sdio0_wp, sdio1, sdio1_pc, sdio1_cd, sdio1_wp,
smc0_nor, smc0_nor_cs1, smc0_nor_addr25, smc0_nand, can0,
can1, uart0, uart1, i2c0, i2c1, ttc0, ttc1, swdt0, gpio0,
usb0, usb1]
required:
- groups
- function
additionalProperties: false
'^conf':
type: object
description:
Pinctrl node's client devices use subnodes for pin configurations,
which in turn use the standard properties below.
$ref: pincfg-node.yaml#
properties:
groups:
description:
List of pin groups as mentioned above.
pins:
description:
List of pin names to select in this subnode.
items:
pattern: '^MIO([0-9]|[1-4][0-9]|5[0-3])$'
maxItems: 54
bias-pull-up: true
bias-pull-down: true
bias-disable: true
bias-high-impedance: true
low-power-enable: true
low-power-disable: true
slew-rate:
enum: [0, 1]
power-source:
enum: [1, 2, 3, 4]
oneOf:
- required: [ groups ]
- required: [ pins ]
additionalProperties: false
additionalProperties: false
allOf:
- $ref: pinctrl.yaml#
required:
- compatible
- reg
- syscon
additionalProperties: false
examples:
- |
#include <dt-bindings/pinctrl/pinctrl-zynq.h>
pinctrl0: pinctrl@700 {
compatible = "xlnx,zynq-pinctrl";
reg = <0x700 0x200>;
syscon = <&slcr>;
pinctrl_uart1_default: uart1-default {
mux {
groups = "uart1_10_grp";
function = "uart1";
};
conf {
groups = "uart1_10_grp";
slew-rate = <0>;
power-source = <IO_STANDARD_LVCMOS18>;
};
conf-rx {
pins = "MIO49";
bias-high-impedance;
};
conf-tx {
pins = "MIO48";
bias-disable;
};
};
};
uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1_default>;
};
...
|
