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 };
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