1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm283x-rpi-smsc9514.dtsi"
6 #include "bcm283x-rpi-usb-host.dtsi"
7
8 / {
9 compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";
10 model = "Raspberry Pi Model B+";
11
12 memory@0 {
13 device_type = "memory";
14 reg = <0 0x20000000>;
15 };
16
17 leds {
18 led-act {
19 gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
20 };
21
22 led-pwr {
23 label = "PWR";
24 gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
25 default-state = "keep";
26 linux,default-trigger = "default-on";
27 };
28 };
29 };
30
31 &gpio {
32 /*
33 * Taken from Raspberry-Pi-B-Plus-V1.2-Schematics.pdf
34 * RPI-BPLUS sheet 1
35 *
36 * Legend:
37 * "FOO" = GPIO line named "FOO" on the schematic
38 * "FOO_N" = GPIO line named "FOO" on schematic, active low
39 */
40 gpio-line-names = "ID_SDA",
41 "ID_SCL",
42 "SDA1",
43 "SCL1",
44 "GPIO_GCLK",
45 "GPIO5",
46 "GPIO6",
47 "SPI_CE1_N",
48 "SPI_CE0_N",
49 "SPI_MISO",
50 "SPI_MOSI",
51 "SPI_SCLK",
52 "GPIO12",
53 "GPIO13",
54 /* Serial port */
55 "TXD0",
56 "RXD0",
57 "GPIO16",
58 "GPIO17",
59 "GPIO18",
60 "GPIO19",
61 "GPIO20",
62 "GPIO21",
63 "GPIO22",
64 "GPIO23",
65 "GPIO24",
66 "GPIO25",
67 "GPIO26",
68 "GPIO27",
69 "SDA0",
70 "SCL0",
71 "", /* GPIO30 */
72 "LAN_RUN", /* GPIO31 */
73 "CAM_GPIO1", /* GPIO32 */
74 "", /* GPIO33 */
75 "", /* GPIO34 */
76 "PWR_LOW_N", /* GPIO35 */
77 "", /* GPIO36 */
78 "", /* GPIO37 */
79 "USB_LIMIT", /* GPIO38 */
80 "", /* GPIO39 */
81 "PWM0_OUT", /* GPIO40 */
82 "CAM_GPIO0", /* GPIO41 */
83 "", /* GPIO42 */
84 "", /* GPIO43 */
85 "ETH_CLK", /* GPIO44 */
86 "PWM1_OUT", /* GPIO45 */
87 "HDMI_HPD_N",
88 "STATUS_LED",
89 /* Used by SD Card */
90 "SD_CLK_R",
91 "SD_CMD_R",
92 "SD_DATA0_R",
93 "SD_DATA1_R",
94 "SD_DATA2_R",
95 "SD_DATA3_R";
96
97 pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
98
99 /* I2S interface */
100 i2s_alt0: i2s_alt0 {
101 brcm,pins = <18 19 20 21>;
102 brcm,function = <BCM2835_FSEL_ALT0>;
103 };
104 };
105
106 &hdmi {
107 hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
108 power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
109 status = "okay";
110 };
111
112 &pwm {
113 pinctrl-names = "default";
114 pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
115 status = "okay";
116 };
117
118 &sdhost {
119 pinctrl-names = "default";
120 pinctrl-0 = <&sdhost_gpio48>;
121 bus-width = <4>;
122 status = "okay";
123 };
124
125 &uart0 {
126 pinctrl-names = "default";
127 pinctrl-0 = <&uart0_gpio14>;
128 status = "okay";
129 };
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