1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-smsc9514.dtsi"
8 #include "bcm283x-rpi-usb-host.dtsi"
9
10 / {
11 compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";
12 model = "Raspberry Pi Model B+";
13
14 memory@0 {
15 device_type = "memory";
16 reg = <0 0x20000000>;
17 };
18 };
19
20 &gpio {
21 /*
22 * Taken from Raspberry-Pi-B-Plus-V1.2-Schematics.pdf
23 * RPI-BPLUS sheet 1
24 *
25 * Legend:
26 * "FOO" = GPIO line named "FOO" on the schematic
27 * "FOO_N" = GPIO line named "FOO" on schematic, active low
28 */
29 gpio-line-names = "ID_SDA",
30 "ID_SCL",
31 "SDA1",
32 "SCL1",
33 "GPIO_GCLK",
34 "GPIO5",
35 "GPIO6",
36 "SPI_CE1_N",
37 "SPI_CE0_N",
38 "SPI_MISO",
39 "SPI_MOSI",
40 "SPI_SCLK",
41 "GPIO12",
42 "GPIO13",
43 /* Serial port */
44 "TXD0",
45 "RXD0",
46 "GPIO16",
47 "GPIO17",
48 "GPIO18",
49 "GPIO19",
50 "GPIO20",
51 "GPIO21",
52 "GPIO22",
53 "GPIO23",
54 "GPIO24",
55 "GPIO25",
56 "GPIO26",
57 "GPIO27",
58 "SDA0",
59 "SCL0",
60 "", /* GPIO30 */
61 "LAN_RUN", /* GPIO31 */
62 "CAM_GPIO1", /* GPIO32 */
63 "", /* GPIO33 */
64 "", /* GPIO34 */
65 "PWR_LOW_N", /* GPIO35 */
66 "", /* GPIO36 */
67 "", /* GPIO37 */
68 "USB_LIMIT", /* GPIO38 */
69 "", /* GPIO39 */
70 "PWM0_OUT", /* GPIO40 */
71 "CAM_GPIO0", /* GPIO41 */
72 "", /* GPIO42 */
73 "", /* GPIO43 */
74 "ETH_CLK", /* GPIO44 */
75 "PWM1_OUT", /* GPIO45 */
76 "HDMI_HPD_N",
77 "STATUS_LED",
78 /* Used by SD Card */
79 "SD_CLK_R",
80 "SD_CMD_R",
81 "SD_DATA0_R",
82 "SD_DATA1_R",
83 "SD_DATA2_R",
84 "SD_DATA3_R";
85
86 pinctrl-names = "default";
87 pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
88
89 /* I2S interface */
90 i2s_alt0: i2s_alt0 {
91 brcm,pins = <18 19 20 21>;
92 brcm,function = <BCM2835_FSEL_ALT0>;
93 };
94 };
95
96 &hdmi {
97 hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
98 power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
99 status = "okay";
100 };
101
102 &led_act {
103 gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
104 };
105
106 &leds {
107 led-pwr {
108 label = "PWR";
109 gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
110 default-state = "keep";
111 linux,default-trigger = "default-on";
112 };
113 };
114
115 &pwm {
116 pinctrl-names = "default";
117 pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
118 status = "okay";
119 };
120
121 &sdhost {
122 pinctrl-names = "default";
123 pinctrl-0 = <&sdhost_gpio48>;
124 bus-width = <4>;
125 status = "okay";
126 };
127
128 &uart0 {
129 pinctrl-names = "default";
130 pinctrl-0 = <&uart0_gpio14>;
131 status = "okay";
132 };
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