xref: /linux/arch/arm/boot/dts/broadcom/bcm2836-rpi-2-b.dts (revision 484f0a071f8d482649eaf025dee7b76a7202fec9) 
1// SPDX-License-Identifier: GPL-2.0
2/dts-v1/;
3#include "bcm2836.dtsi"
4#include "bcm2836-rpi.dtsi"
5#include "bcm283x-rpi-led-deprecated.dtsi"
6#include "bcm283x-rpi-smsc9514.dtsi"
7#include "bcm283x-rpi-usb-host.dtsi"
8
9/ {
10	compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
11	model = "Raspberry Pi 2 Model B";
12
13	memory@0 {
14		device_type = "memory";
15		reg = <0 0x40000000>;
16	};
17};
18
19&gpio {
20	/*
21	 * Taken from rpi_SCH_2b_1p2_reduced.pdf and
22	 * the official GPU firmware DT blob.
23	 *
24	 * Legend:
25	 * "FOO" = GPIO line named "FOO" on the schematic
26	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
27	 */
28	gpio-line-names = "ID_SDA",
29			  "ID_SCL",
30			  "SDA1",
31			  "SCL1",
32			  "GPIO_GCLK",
33			  "GPIO5",
34			  "GPIO6",
35			  "SPI_CE1_N",
36			  "SPI_CE0_N",
37			  "SPI_MISO",
38			  "SPI_MOSI",
39			  "SPI_SCLK",
40			  "GPIO12",
41			  "GPIO13",
42			  /* Serial port */
43			  "TXD0",
44			  "RXD0",
45			  "GPIO16",
46			  "GPIO17",
47			  "GPIO18",
48			  "GPIO19",
49			  "GPIO20",
50			  "GPIO21",
51			  "GPIO22",
52			  "GPIO23",
53			  "GPIO24",
54			  "GPIO25",
55			  "GPIO26",
56			  "GPIO27",
57			  "SDA0",
58			  "SCL0",
59			  "", /* GPIO30 */
60			  "LAN_RUN",
61			  "CAM_GPIO1",
62			  "", /* GPIO33 */
63			  "", /* GPIO34 */
64			  "PWR_LOW_N",
65			  "", /* GPIO36 */
66			  "", /* GPIO37 */
67			  "USB_LIMIT",
68			  "", /* GPIO39 */
69			  "PWM0_OUT",
70			  "CAM_GPIO0",
71			  "SMPS_SCL",
72			  "SMPS_SDA",
73			  "ETH_CLK",
74			  "PWM1_OUT",
75			  "HDMI_HPD_N",
76			  "STATUS_LED",
77			  /* Used by SD Card */
78			  "SD_CLK_R",
79			  "SD_CMD_R",
80			  "SD_DATA0_R",
81			  "SD_DATA1_R",
82			  "SD_DATA2_R",
83			  "SD_DATA3_R";
84
85	pinctrl-names = "default";
86	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
87
88	/* I2S interface */
89	i2s_alt0: i2s_alt0 {
90		brcm,pins = <18 19 20 21>;
91		brcm,function = <BCM2835_FSEL_ALT0>;
92	};
93};
94
95&hdmi {
96	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
97	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
98	status = "okay";
99};
100
101&led_act {
102	gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
103};
104
105&leds {
106	led-pwr {
107		label = "PWR";
108		gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
109		default-state = "keep";
110		linux,default-trigger = "default-on";
111	};
112};
113
114&pwm {
115	pinctrl-names = "default";
116	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
117	status = "okay";
118};
119
120&sdhost {
121	pinctrl-names = "default";
122	pinctrl-0 = <&sdhost_gpio48>;
123	bus-width = <4>;
124	status = "okay";
125};
126
127&uart0 {
128	pinctrl-names = "default";
129	pinctrl-0 = <&uart0_gpio14>;
130	status = "okay";
131};
132