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
|
// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#include "bcm2835.dtsi"
#include "bcm2835-rpi.dtsi"
#include "bcm283x-rpi-smsc9514.dtsi"
#include "bcm283x-rpi-usb-host.dtsi"
/ {
compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";
model = "Raspberry Pi Model B+";
memory@0 {
device_type = "memory";
reg = <0 0x20000000>;
};
leds {
act {
gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
};
pwr {
label = "PWR";
gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
default-state = "keep";
linux,default-trigger = "default-on";
};
};
};
&gpio {
/*
* Taken from Raspberry-Pi-B-Plus-V1.2-Schematics.pdf
* RPI-BPLUS sheet 1
*
* 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 = "ID_SDA",
"ID_SCL",
"SDA1",
"SCL1",
"GPIO_GCLK",
"GPIO5",
"GPIO6",
"SPI_CE1_N",
"SPI_CE0_N",
"SPI_MISO",
"SPI_MOSI",
"SPI_SCLK",
"GPIO12",
"GPIO13",
/* Serial port */
"TXD0",
"RXD0",
"GPIO16",
"GPIO17",
"GPIO18",
"GPIO19",
"GPIO20",
"GPIO21",
"GPIO22",
"GPIO23",
"GPIO24",
"GPIO25",
"GPIO26",
"GPIO27",
"SDA0",
"SCL0",
"NC", /* GPIO30 */
"LAN_RUN", /* GPIO31 */
"CAM_GPIO1", /* GPIO32 */
"NC", /* GPIO33 */
"NC", /* GPIO34 */
"PWR_LOW_N", /* GPIO35 */
"NC", /* GPIO36 */
"NC", /* GPIO37 */
"USB_LIMIT", /* GPIO38 */
"NC", /* GPIO39 */
"PWM0_OUT", /* GPIO40 */
"CAM_GPIO0", /* GPIO41 */
"NC", /* GPIO42 */
"NC", /* GPIO43 */
"ETHCLK", /* GPIO44 */
"PWM1_OUT", /* GPIO45 */
"HDMI_HPD_N",
"STATUS_LED",
/* 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_alt0>;
/* I2S interface */
i2s_alt0: i2s_alt0 {
brcm,pins = <18 19 20 21>;
brcm,function = <BCM2835_FSEL_ALT0>;
};
};
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
status = "okay";
};
&pwm {
pinctrl-names = "default";
pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
status = "okay";
};
&sdhost {
pinctrl-names = "default";
pinctrl-0 = <&sdhost_gpio48>;
bus-width = <4>;
status = "okay";
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_gpio14>;
status = "okay";
};
|
