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
|
Broadcom Cygnus IOMUX Controller
The Cygnus IOMUX controller supports group based mux configuration. In
addition, certain pins can be muxed to GPIO function individually.
Required properties:
- compatible:
Must be "brcm,cygnus-pinmux"
- reg:
Define the base and range of the I/O address space that contains the Cygnus
IOMUX registers
Properties in subnodes:
- function:
The mux function to select
- groups:
The list of groups to select with a given function
For more details, refer to
Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
For example:
pinmux: pinmux@0x0301d0c8 {
compatible = "brcm,cygnus-pinmux";
reg = <0x0301d0c8 0x1b0>;
pinctrl-names = "default";
pinctrl-0 = <&i2s0_default>;
i2s0_default: i2s0_default {
mux {
function = "i2s0";
groups = "i2s0_0_grp", "i2s0_1_grp";
};
};
};
List of supported functions and groups in Cygnus:
"i2s0": "i2s0_0_grp", "i2s0_1_grp"
"i2s1": "i2s1_0_grp", "i2s1_1_grp"
"i2s2": "i2s2_0_grp", "i2s2_1_grp", "i2s2_2_grp", "i2s2_3_grp", "i2s2_4_grp"
"spdif": "spdif_grp"
"pwm0": "pwm0_grp"
"pwm1": "pwm1_grp"
"pwm2": "pwm2_grp"
"pwm3": "pwm3_grp"
"pwm4": "pwm4_grp"
"pwm5": "pwm5_grp"
"key": "key0_grp", "key1_grp", "key2_grp", "key3_grp", "key4_grp", "key5_grp",
"key6_grp", "key7_grp", "key8_grp", "key9_grp", "key10_grp", "key11_grp",
"key12_grp", "key13_grp", "key14_grp", "key15_grp"
"audio_dte": "audio_dte0_grp", "audio_dte1_grp", "audio_dte2_grp", "audio_dte3_grp"
"smart_card0": "smart_card0_grp", "smart_card0_fcb_grp"
"smart_card1": "smart_card1_grp", "smart_card1_fcb_grp"
"spi0": "spi0_grp"
"spi1": "spi1_grp"
"spi2": "spi2_grp"
"spi3": "spi3_grp"
"spi4": "spi4_0_grp", "spi4_1_grp"
"spi5": "spi5_grp"
"sw_led0": "sw_led0_0_grp", "sw_led0_1_grp"
"sw_led1": "sw_led1_grp"
"sw_led2": "sw_led2_0_grp", "sw_led2_1_grp"
"d1w": "d1w_grp"
"lcd": "lcd_grp"
"sram": "sram_0_grp", "sram_1_grp"
"uart0": "uart0_grp"
"uart1": "uart1_grp", "uart1_dte_grp"
"uart2": "uart2_grp"
"uart3": "uart3_grp"
"uart4": "uart4_grp"
"qspi": "qspi_0_grp", "qspi_1_grp"
"nand": "nand_grp"
"sdio0": "sdio0_grp", "sdio0_cd_grp", "sdio0_mmc_grp"
"sdio1": "sdio1_data_0_grp", "sdio1_data_1_grp", "sdio1_cd_grp",
"sdio1_led_grp", "sdio1_mmc_grp"
"can0": "can0_grp"
"can1": "can1_grp"
"cam": "cam_led_grp", "cam_0_grp", "cam_1_grp"
"bsc1": "bsc1_grp"
"pcie_clkreq": "pcie_clkreq_grp"
"usb0_oc": "usb0_oc_grp"
"usb1_oc": "usb1_oc_grp"
"usb2_oc": "usb2_oc_grp"
|
