1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2837.dtsi"
4 #include "bcm2836-rpi.dtsi"
5 #include "bcm283x-rpi-lan7515.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-usb-host.dtsi"
8 #include "bcm283x-rpi-wifi-bt.dtsi"
9
10 / {
11 compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837";
12 model = "Raspberry Pi 3 Model B+";
13
14 chosen {
15 /* 8250 auxiliary UART instead of pl011 */
16 stdout-path = "serial1:115200n8";
17 };
18
19 memory@0 {
20 device_type = "memory";
21 reg = <0 0x40000000>;
22 };
23 };
24
25 &bt {
26 shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
27 };
28
29 &firmware {
30 expgpio: gpio {
31 compatible = "raspberrypi,firmware-gpio";
32 gpio-controller;
33 #gpio-cells = <2>;
34 gpio-line-names = "BT_ON",
35 "WL_ON",
36 "PWR_LED_R",
37 "LAN_RUN",
38 "",
39 "CAM_GPIO0",
40 "CAM_GPIO1",
41 "";
42 status = "okay";
43 };
44 };
45
46 &gpio {
47 /*
48 * Taken from rpi_SCH_3bplus_1p0_reduced.pdf and
49 * the official GPU firmware DT blob.
50 *
51 * Legend:
52 * "FOO" = GPIO line named "FOO" on the schematic
53 * "FOO_N" = GPIO line named "FOO" on schematic, active low
54 */
55 gpio-line-names = "ID_SDA",
56 "ID_SCL",
57 "SDA1",
58 "SCL1",
59 "GPIO_GCLK",
60 "GPIO5",
61 "GPIO6",
62 "SPI_CE1_N",
63 "SPI_CE0_N",
64 "SPI_MISO",
65 "SPI_MOSI",
66 "SPI_SCLK",
67 "GPIO12",
68 "GPIO13",
69 /* Serial port */
70 "TXD1",
71 "RXD1",
72 "GPIO16",
73 "GPIO17",
74 "GPIO18",
75 "GPIO19",
76 "GPIO20",
77 "GPIO21",
78 "GPIO22",
79 "GPIO23",
80 "GPIO24",
81 "GPIO25",
82 "GPIO26",
83 "GPIO27",
84 "HDMI_HPD_N",
85 "STATUS_LED_G",
86 /* Used by BT module */
87 "CTS0",
88 "RTS0",
89 "TXD0",
90 "RXD0",
91 /* Used by Wifi */
92 "SD1_CLK",
93 "SD1_CMD",
94 "SD1_DATA0",
95 "SD1_DATA1",
96 "SD1_DATA2",
97 "SD1_DATA3",
98 "PWM0_OUT",
99 "PWM1_OUT",
100 "ETH_CLK",
101 "WIFI_CLK",
102 "SDA0",
103 "SCL0",
104 "SMPS_SCL",
105 "SMPS_SDA",
106 /* Used by SD Card */
107 "SD_CLK_R",
108 "SD_CMD_R",
109 "SD_DATA0_R",
110 "SD_DATA1_R",
111 "SD_DATA2_R",
112 "SD_DATA3_R";
113 };
114
115 &hdmi {
116 hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
117 power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
118 status = "okay";
119 };
120
121 &led_act {
122 gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
123 };
124
125 &leds {
126 led-pwr {
127 label = "PWR";
128 gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
129 default-state = "keep";
130 linux,default-trigger = "default-on";
131 };
132 };
133
134 &pwm {
135 pinctrl-names = "default";
136 pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
137 status = "okay";
138 };
139
140 /* SDHOST is used to drive the SD card */
141 &sdhost {
142 pinctrl-names = "default";
143 pinctrl-0 = <&sdhost_gpio48>;
144 status = "okay";
145 bus-width = <4>;
146 };
147
148 /* uart0 communicates with the BT module */
149 &uart0 {
150 pinctrl-names = "default";
151 pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
152 };
153
154 /* uart1 is mapped to the pin header */
155 &uart1 {
156 pinctrl-names = "default";
157 pinctrl-0 = <&uart1_gpio14>;
158 status = "okay";
159 };
160
161 &wifi_pwrseq {
162 reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
163 };
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