1// SPDX-License-Identifier: GPL-2.0
  2/dts-v1/;
  3#include "bcm2711.dtsi"
  4#include "bcm2711-rpi.dtsi"
  5#include "bcm283x-rpi-usb-peripheral.dtsi"
  6
  7/ {
  8	compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
  9	model = "Raspberry Pi 4 Model B";
 10
 11	chosen {
 12		/* 8250 auxiliary UART instead of pl011 */
 13		stdout-path = "serial1:115200n8";
 14	};
 15
 16	leds {
 17		led-act {
 18			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
 19		};
 20
 21		led-pwr {
 22			label = "PWR";
 23			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
 24			default-state = "keep";
 25			linux,default-trigger = "default-on";
 26		};
 27	};
 28
 29	wifi_pwrseq: wifi-pwrseq {
 30		compatible = "mmc-pwrseq-simple";
 31		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
 32	};
 33
 34	sd_io_1v8_reg: sd_io_1v8_reg {
 35		compatible = "regulator-gpio";
 36		regulator-name = "vdd-sd-io";
 37		regulator-min-microvolt = <1800000>;
 38		regulator-max-microvolt = <3300000>;
 39		regulator-boot-on;
 40		regulator-always-on;
 41		regulator-settling-time-us = <5000>;
 42		gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
 43		states = <1800000 0x1>,
 44			 <3300000 0x0>;
 45		status = "okay";
 46	};
 47
 48	sd_vcc_reg: sd_vcc_reg {
 49		compatible = "regulator-fixed";
 50		regulator-name = "vcc-sd";
 51		regulator-min-microvolt = <3300000>;
 52		regulator-max-microvolt = <3300000>;
 53		regulator-boot-on;
 54		enable-active-high;
 55		gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
 56	};
 57};
 58
 59&ddc0 {
 60	status = "okay";
 61};
 62
 63&ddc1 {
 64	status = "okay";
 65};
 66
 67&expgpio {
 68	gpio-line-names = "BT_ON",
 69			  "WL_ON",
 70			  "PWR_LED_OFF",
 71			  "GLOBAL_RESET",
 72			  "VDD_SD_IO_SEL",
 73			  "CAM_GPIO",
 74			  "SD_PWR_ON",
 75			  "";
 76};
 77
 78&gpio {
 79	/*
 80	 * Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
 81	 * the official GPU firmware DT blob.
 82	 *
 83	 * Legend:
 84	 * "FOO" = GPIO line named "FOO" on the schematic
 85	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 86	 */
 87	gpio-line-names = "ID_SDA",
 88			  "ID_SCL",
 89			  "SDA1",
 90			  "SCL1",
 91			  "GPIO_GCLK",
 92			  "GPIO5",
 93			  "GPIO6",
 94			  "SPI_CE1_N",
 95			  "SPI_CE0_N",
 96			  "SPI_MISO",
 97			  "SPI_MOSI",
 98			  "SPI_SCLK",
 99			  "GPIO12",
100			  "GPIO13",
101			  /* Serial port */
102			  "TXD1",
103			  "RXD1",
104			  "GPIO16",
105			  "GPIO17",
106			  "GPIO18",
107			  "GPIO19",
108			  "GPIO20",
109			  "GPIO21",
110			  "GPIO22",
111			  "GPIO23",
112			  "GPIO24",
113			  "GPIO25",
114			  "GPIO26",
115			  "GPIO27",
116			  "RGMII_MDIO",
117			  "RGMIO_MDC",
118			  /* Used by BT module */
119			  "CTS0",
120			  "RTS0",
121			  "TXD0",
122			  "RXD0",
123			  /* Used by Wifi */
124			  "SD1_CLK",
125			  "SD1_CMD",
126			  "SD1_DATA0",
127			  "SD1_DATA1",
128			  "SD1_DATA2",
129			  "SD1_DATA3",
130			  /* Shared with SPI flash */
131			  "PWM0_MISO",
132			  "PWM1_MOSI",
133			  "STATUS_LED_G_CLK",
134			  "SPIFLASH_CE_N",
135			  "SDA0",
136			  "SCL0",
137			  "RGMII_RXCLK",
138			  "RGMII_RXCTL",
139			  "RGMII_RXD0",
140			  "RGMII_RXD1",
141			  "RGMII_RXD2",
142			  "RGMII_RXD3",
143			  "RGMII_TXCLK",
144			  "RGMII_TXCTL",
145			  "RGMII_TXD0",
146			  "RGMII_TXD1",
147			  "RGMII_TXD2",
148			  "RGMII_TXD3";
149};
150
151&hdmi0 {
152	status = "okay";
153};
154
155&hdmi1 {
156	status = "okay";
157};
158
159&pixelvalve0 {
160	status = "okay";
161};
162
163&pixelvalve1 {
164	status = "okay";
165};
166
167&pixelvalve2 {
168	status = "okay";
169};
170
171&pixelvalve4 {
172	status = "okay";
173};
174
175&pwm1 {
176	pinctrl-names = "default";
177	pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;
178	status = "okay";
179};
180
181/* SDHCI is used to control the SDIO for wireless */
182&sdhci {
183	#address-cells = <1>;
184	#size-cells = <0>;
185	pinctrl-names = "default";
186	pinctrl-0 = <&emmc_gpio34>;
187	bus-width = <4>;
188	non-removable;
189	mmc-pwrseq = <&wifi_pwrseq>;
190	status = "okay";
191
192	brcmf: wifi@1 {
193		reg = <1>;
194		compatible = "brcm,bcm4329-fmac";
195	};
196};
197
198/* EMMC2 is used to drive the SD card */
199&emmc2 {
200	vqmmc-supply = <&sd_io_1v8_reg>;
201	vmmc-supply = <&sd_vcc_reg>;
202	broken-cd;
203	status = "okay";
204};
205
206&genet {
207	phy-handle = <&phy1>;
208	phy-mode = "rgmii-rxid";
209	status = "okay";
210};
211
212&genet_mdio {
213	phy1: ethernet-phy@1 {
214		/* No PHY interrupt */
215		reg = <0x1>;
216	};
217};
218
219&pcie0 {
220	pci@0,0 {
221		device_type = "pci";
222		#address-cells = <3>;
223		#size-cells = <2>;
224		ranges;
225
226		reg = <0 0 0 0 0>;
227
228		usb@0,0 {
229			reg = <0 0 0 0 0>;
230			resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;
231		};
232	};
233};
234
235/* uart0 communicates with the BT module */
236&uart0 {
237	pinctrl-names = "default";
238	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
239	uart-has-rtscts;
240	status = "okay";
241
242	bluetooth {
243		compatible = "brcm,bcm43438-bt";
244		max-speed = <2000000>;
245		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
246	};
247};
248
249/* uart1 is mapped to the pin header */
250&uart1 {
251	pinctrl-names = "default";
252	pinctrl-0 = <&uart1_gpio14>;
253	status = "okay";
254};
255
256&vc4 {
257	status = "okay";
258};
259
260&vec {
261	status = "disabled";
262};