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
|
// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#include "bcm2835.dtsi"
#include "bcm2835-rpi.dtsi"
#include "bcm283x-rpi-usb-host.dtsi"
/ {
compatible = "raspberrypi,model-a", "brcm,bcm2835";
model = "Raspberry Pi Model A";
leds {
act {
gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
};
};
};
&gpio {
/*
* Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
* RPI00021 sheet 02
*
* Legend:
* "NC" = not connected (no rail from the SoC)
* "FOO" = GPIO line named "FOO" on the schematic
* "FOO_N" = GPIO line named "FOO" on schematic, active low
*/
gpio-line-names = "SDA0",
"SCL0",
"SDA1",
"SCL1",
"GPIO_GCLK",
"CAM_GPIO1",
"LAN_RUN",
"SPI_CE1_N",
"SPI_CE0_N",
"SPI_MISO",
"SPI_MOSI",
"SPI_SCLK",
"NC", /* GPIO12 */
"NC", /* GPIO13 */
/* Serial port */
"TXD0",
"RXD0",
"STATUS_LED_N",
"GPIO17",
"GPIO18",
"NC", /* GPIO19 */
"NC", /* GPIO20 */
"GPIO21",
"GPIO22",
"GPIO23",
"GPIO24",
"GPIO25",
"NC", /* GPIO26 */
"CAM_GPIO0",
/* Binary number representing build/revision */
"CONFIG0",
"CONFIG1",
"CONFIG2",
"CONFIG3",
"NC", /* GPIO32 */
"NC", /* GPIO33 */
"NC", /* GPIO34 */
"NC", /* GPIO35 */
"NC", /* GPIO36 */
"NC", /* GPIO37 */
"NC", /* GPIO38 */
"NC", /* GPIO39 */
"PWM0_OUT",
"NC", /* GPIO41 */
"NC", /* GPIO42 */
"NC", /* GPIO43 */
"NC", /* GPIO44 */
"PWM1_OUT",
"HDMI_HPD_P",
"SD_CARD_DET",
/* Used by SD Card */
"SD_CLK_R",
"SD_CMD_R",
"SD_DATA0_R",
"SD_DATA1_R",
"SD_DATA2_R",
"SD_DATA3_R";
pinctrl-0 = <&gpioout &alt0 &i2s_alt2>;
/* I2S interface */
i2s_alt2: i2s_alt2 {
brcm,pins = <28 29 30 31>;
brcm,function = <BCM2835_FSEL_ALT2>;
};
};
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_gpio14>;
status = "okay";
};
|
