xref: /linux/arch/arm/boot/dts/broadcom/bcm2835-rpi-b-plus.dts (revision daa2be74b1b2302004945b2a5e32424e177cc7da) 
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};
133