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		act {
19			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
20		};
21
22		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	 * "NC" = not connected (no rail from the SoC)
38	 * "FOO" = GPIO line named "FOO" on the schematic
39	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
40	 */
41	gpio-line-names = "ID_SDA",
42			  "ID_SCL",
43			  "SDA1",
44			  "SCL1",
45			  "GPIO_GCLK",
46			  "GPIO5",
47			  "GPIO6",
48			  "SPI_CE1_N",
49			  "SPI_CE0_N",
50			  "SPI_MISO",
51			  "SPI_MOSI",
52			  "SPI_SCLK",
53			  "GPIO12",
54			  "GPIO13",
55			  /* Serial port */
56			  "TXD0",
57			  "RXD0",
58			  "GPIO16",
59			  "GPIO17",
60			  "GPIO18",
61			  "GPIO19",
62			  "GPIO20",
63			  "GPIO21",
64			  "GPIO22",
65			  "GPIO23",
66			  "GPIO24",
67			  "GPIO25",
68			  "GPIO26",
69			  "GPIO27",
70			  "SDA0",
71			  "SCL0",
72			  "NC", /* GPIO30 */
73			  "LAN_RUN", /* GPIO31 */
74			  "CAM_GPIO1", /* GPIO32 */
75			  "NC", /* GPIO33 */
76			  "NC", /* GPIO34 */
77			  "PWR_LOW_N", /* GPIO35 */
78			  "NC", /* GPIO36 */
79			  "NC", /* GPIO37 */
80			  "USB_LIMIT", /* GPIO38 */
81			  "NC", /* GPIO39 */
82			  "PWM0_OUT", /* GPIO40 */
83			  "CAM_GPIO0", /* GPIO41 */
84			  "NC", /* GPIO42 */
85			  "NC", /* GPIO43 */
86			  "ETHCLK", /* GPIO44 */
87			  "PWM1_OUT", /* GPIO45 */
88			  "HDMI_HPD_N",
89			  "STATUS_LED",
90			  /* Used by SD Card */
91			  "SD_CLK_R",
92			  "SD_CMD_R",
93			  "SD_DATA0_R",
94			  "SD_DATA1_R",
95			  "SD_DATA2_R",
96			  "SD_DATA3_R";
97
98	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
99
100	/* I2S interface */
101	i2s_alt0: i2s_alt0 {
102		brcm,pins = <18 19 20 21>;
103		brcm,function = <BCM2835_FSEL_ALT0>;
104	};
105};
106
107&hdmi {
108	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
109	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
110	status = "okay";
111};
112
113&pwm {
114	pinctrl-names = "default";
115	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
116	status = "okay";
117};
118
119&sdhost {
120	pinctrl-names = "default";
121	pinctrl-0 = <&sdhost_gpio48>;
122	bus-width = <4>;
123	status = "okay";
124};
125
126&uart0 {
127	pinctrl-names = "default";
128	pinctrl-0 = <&uart0_gpio14>;
129	status = "okay";
130};
131