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Heinrich Schuchardt143256b2019-04-28 06:46:57 +02001// SPDX-License-Identifier: GPL-2.0
Fabian Vogt46025582016-09-26 14:26:47 +02002/dts-v1/;
3#include "bcm2837.dtsi"
Heinrich Schuchardt143256b2019-04-28 06:46:57 +02004#include "bcm2836-rpi.dtsi"
Fabian Vogt46025582016-09-26 14:26:47 +02005#include "bcm283x-rpi-smsc9514.dtsi"
Alexander Graf409f05f2017-10-04 14:39:16 +02006#include "bcm283x-rpi-usb-host.dtsi"
Fabian Vogt46025582016-09-26 14:26:47 +02007
8/ {
9 compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
10 model = "Raspberry Pi 3 Model B";
11
Heinrich Schuchardt143256b2019-04-28 06:46:57 +020012 chosen {
13 /* 8250 auxiliary UART instead of pl011 */
14 stdout-path = "serial1:115200n8";
15 };
16
17 memory@0 {
Fabian Vogt46025582016-09-26 14:26:47 +020018 reg = <0 0x40000000>;
19 };
20
21 leds {
22 act {
Heinrich Schuchardt143256b2019-04-28 06:46:57 +020023 gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
Fabian Vogt46025582016-09-26 14:26:47 +020024 };
Fabian Vogt46025582016-09-26 14:26:47 +020025 };
Heinrich Schuchardt143256b2019-04-28 06:46:57 +020026
27 wifi_pwrseq: wifi-pwrseq {
28 compatible = "mmc-pwrseq-simple";
29 reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
30 };
31};
32
33&firmware {
34 expgpio: gpio {
35 compatible = "raspberrypi,firmware-gpio";
36 gpio-controller;
37 #gpio-cells = <2>;
38 gpio-line-names = "BT_ON",
39 "WL_ON",
40 "STATUS_LED",
41 "LAN_RUN",
42 "HDMI_HPD_N",
43 "CAM_GPIO0",
44 "CAM_GPIO1",
45 "PWR_LOW_N";
46 status = "okay";
47 };
48};
49
50&gpio {
51 /*
52 * Taken from rpi_SCH_3b_1p2_reduced.pdf and
53 * the official GPU firmware DT blob.
54 *
55 * Legend:
56 * "NC" = not connected (no rail from the SoC)
57 * "FOO" = GPIO line named "FOO" on the schematic
58 * "FOO_N" = GPIO line named "FOO" on schematic, active low
59 */
60 gpio-line-names = "ID_SDA",
61 "ID_SCL",
62 "SDA1",
63 "SCL1",
64 "GPIO_GCLK",
65 "GPIO5",
66 "GPIO6",
67 "SPI_CE1_N",
68 "SPI_CE0_N",
69 "SPI_MISO",
70 "SPI_MOSI",
71 "SPI_SCLK",
72 "GPIO12",
73 "GPIO13",
74 /* Serial port */
75 "TXD1",
76 "RXD1",
77 "GPIO16",
78 "GPIO17",
79 "GPIO18",
80 "GPIO19",
81 "GPIO20",
82 "GPIO21",
83 "GPIO22",
84 "GPIO23",
85 "GPIO24",
86 "GPIO25",
87 "GPIO26",
88 "GPIO27",
89 "", /* GPIO 28 */
90 "LAN_RUN_BOOT",
91 /* Used by BT module */
92 "CTS0",
93 "RTS0",
94 "TXD0",
95 "RXD0",
96 /* Used by Wifi */
97 "SD1_CLK",
98 "SD1_CMD",
99 "SD1_DATA0",
100 "SD1_DATA1",
101 "SD1_DATA2",
102 "SD1_DATA3",
103 "PWM0_OUT",
104 "PWM1_OUT",
105 "ETHCLK",
106 "WIFI_CLK",
107 "SDA0",
108 "SCL0",
109 "SMPS_SCL",
110 "SMPS_SDA",
111 /* Used by SD Card */
112 "SD_CLK_R",
113 "SD_CMD_R",
114 "SD_DATA0_R",
115 "SD_DATA1_R",
116 "SD_DATA2_R",
117 "SD_DATA3_R";
118};
119
120&pwm {
121 pinctrl-names = "default";
122 pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
123 status = "okay";
124};
125
126&hdmi {
127 hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>;
Fabian Vogt46025582016-09-26 14:26:47 +0200128};
129
Alexander Graf409f05f2017-10-04 14:39:16 +0200130/* uart0 communicates with the BT module */
131&uart0 {
132 pinctrl-names = "default";
133 pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
Fabian Vogt46025582016-09-26 14:26:47 +0200134 status = "okay";
Heinrich Schuchardt143256b2019-04-28 06:46:57 +0200135
136 bluetooth {
137 compatible = "brcm,bcm43438-bt";
138 max-speed = <2000000>;
139 shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
140 };
Fabian Vogt46025582016-09-26 14:26:47 +0200141};
Alexander Graf409f05f2017-10-04 14:39:16 +0200142
143/* uart1 is mapped to the pin header */
144&uart1 {
145 pinctrl-names = "default";
146 pinctrl-0 = <&uart1_gpio14>;
147 status = "okay";
148};
149
150/* SDHCI is used to control the SDIO for wireless */
151&sdhci {
Heinrich Schuchardt143256b2019-04-28 06:46:57 +0200152 #address-cells = <1>;
153 #size-cells = <0>;
Alexander Graf409f05f2017-10-04 14:39:16 +0200154 pinctrl-names = "default";
155 pinctrl-0 = <&emmc_gpio34>;
156 status = "okay";
157 bus-width = <4>;
158 non-removable;
Heinrich Schuchardt143256b2019-04-28 06:46:57 +0200159 mmc-pwrseq = <&wifi_pwrseq>;
160
161 brcmf: wifi@1 {
162 reg = <1>;
163 compatible = "brcm,bcm4329-fmac";
164 };
Alexander Graf409f05f2017-10-04 14:39:16 +0200165};
166
167/* SDHOST is used to drive the SD card */
168&sdhost {
169 pinctrl-names = "default";
170 pinctrl-0 = <&sdhost_gpio48>;
171 status = "okay";
172 bus-width = <4>;
173};