1// SPDX-License-Identifier: GPL-2.0
  2/dts-v1/;
  3#include "bcm2711.dtsi"
  4#include "bcm2835-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	/* Will be filled by the bootloader */
 17	memory@0 {
 18		device_type = "memory";
 19		reg = <0 0 0>;
 20	};
 21
 22	aliases {
 23		emmc2bus = &emmc2bus;
 24		ethernet0 = &genet;
 25		pcie0 = &pcie0;
 26	};
 27
 28	leds {
 29		act {
 30			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
 31		};
 32
 33		pwr {
 34			label = "PWR";
 35			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
 36			default-state = "keep";
 37			linux,default-trigger = "default-on";
 38		};
 39	};
 40
 41	wifi_pwrseq: wifi-pwrseq {
 42		compatible = "mmc-pwrseq-simple";
 43		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
 44	};
 45
 46	sd_io_1v8_reg: sd_io_1v8_reg {
 47		compatible = "regulator-gpio";
 48		regulator-name = "vdd-sd-io";
 49		regulator-min-microvolt = <1800000>;
 50		regulator-max-microvolt = <3300000>;
 51		regulator-boot-on;
 52		regulator-always-on;
 53		regulator-settling-time-us = <5000>;
 54		gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
 55		states = <1800000 0x1
 56			  3300000 0x0>;
 57		status = "okay";
 58	};
 59
 60	sd_vcc_reg: sd_vcc_reg {
 61		compatible = "regulator-fixed";
 62		regulator-name = "vcc-sd";
 63		regulator-min-microvolt = <3300000>;
 64		regulator-max-microvolt = <3300000>;
 65		regulator-boot-on;
 66		enable-active-high;
 67		gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
 68	};
 69};
 70
 71&firmware {
 72	firmware_clocks: clocks {
 73		compatible = "raspberrypi,firmware-clocks";
 74		#clock-cells = <1>;
 75	};
 76
 77	expgpio: gpio {
 78		compatible = "raspberrypi,firmware-gpio";
 79		gpio-controller;
 80		#gpio-cells = <2>;
 81		gpio-line-names = "BT_ON",
 82				  "WL_ON",
 83				  "PWR_LED_OFF",
 84				  "GLOBAL_RESET",
 85				  "VDD_SD_IO_SEL",
 86				  "CAM_GPIO",
 87				  "SD_PWR_ON",
 88				  "";
 89		status = "okay";
 90	};
 91};
 92
 93&gpio {
 94	/*
 95	 * Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
 96	 * the official GPU firmware DT blob.
 97	 *
 98	 * Legend:
 99	 * "FOO" = GPIO line named "FOO" on the schematic
100	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
101	 */
102	gpio-line-names = "ID_SDA",
103			  "ID_SCL",
104			  "SDA1",
105			  "SCL1",
106			  "GPIO_GCLK",
107			  "GPIO5",
108			  "GPIO6",
109			  "SPI_CE1_N",
110			  "SPI_CE0_N",
111			  "SPI_MISO",
112			  "SPI_MOSI",
113			  "SPI_SCLK",
114			  "GPIO12",
115			  "GPIO13",
116			  /* Serial port */
117			  "TXD1",
118			  "RXD1",
119			  "GPIO16",
120			  "GPIO17",
121			  "GPIO18",
122			  "GPIO19",
123			  "GPIO20",
124			  "GPIO21",
125			  "GPIO22",
126			  "GPIO23",
127			  "GPIO24",
128			  "GPIO25",
129			  "GPIO26",
130			  "GPIO27",
131			  "RGMII_MDIO",
132			  "RGMIO_MDC",
133			  /* Used by BT module */
134			  "CTS0",
135			  "RTS0",
136			  "TXD0",
137			  "RXD0",
138			  /* Used by Wifi */
139			  "SD1_CLK",
140			  "SD1_CMD",
141			  "SD1_DATA0",
142			  "SD1_DATA1",
143			  "SD1_DATA2",
144			  "SD1_DATA3",
145			  /* Shared with SPI flash */
146			  "PWM0_MISO",
147			  "PWM1_MOSI",
148			  "STATUS_LED_G_CLK",
149			  "SPIFLASH_CE_N",
150			  "SDA0",
151			  "SCL0",
152			  "RGMII_RXCLK",
153			  "RGMII_RXCTL",
154			  "RGMII_RXD0",
155			  "RGMII_RXD1",
156			  "RGMII_RXD2",
157			  "RGMII_RXD3",
158			  "RGMII_TXCLK",
159			  "RGMII_TXCTL",
160			  "RGMII_TXD0",
161			  "RGMII_TXD1",
162			  "RGMII_TXD2",
163			  "RGMII_TXD3";
164};
165
166&pwm1 {
167	pinctrl-names = "default";
168	pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;
169	status = "okay";
170};
171
172/* SDHCI is used to control the SDIO for wireless */
173&sdhci {
174	#address-cells = <1>;
175	#size-cells = <0>;
176	pinctrl-names = "default";
177	pinctrl-0 = <&emmc_gpio34>;
178	bus-width = <4>;
179	non-removable;
180	mmc-pwrseq = <&wifi_pwrseq>;
181	status = "okay";
182
183	brcmf: wifi@1 {
184		reg = <1>;
185		compatible = "brcm,bcm4329-fmac";
186	};
187};
188
189/* EMMC2 is used to drive the SD card */
190&emmc2 {
191	vqmmc-supply = <&sd_io_1v8_reg>;
192	vmmc-supply = <&sd_vcc_reg>;
193	broken-cd;
194	status = "okay";
195};
196
197&genet {
198	phy-handle = <&phy1>;
199	phy-mode = "rgmii-rxid";
200	status = "okay";
201};
202
203&genet_mdio {
204	phy1: ethernet-phy@1 {
205		/* No PHY interrupt */
206		reg = <0x1>;
207	};
208};
209
210/* uart0 communicates with the BT module */
211&uart0 {
212	pinctrl-names = "default";
213	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
214	uart-has-rtscts;
215	status = "okay";
216
217	bluetooth {
218		compatible = "brcm,bcm43438-bt";
219		max-speed = <2000000>;
220		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
221	};
222};
223
224/* uart1 is mapped to the pin header */
225&uart1 {
226	pinctrl-names = "default";
227	pinctrl-0 = <&uart1_gpio14>;
228	status = "okay";
229};
230
231&vchiq {
232	interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
233};