1/*
  2 * Copyright (C) 2017 Stefan Wahren <stefan.wahren@i2se.com>
  3 *
  4 * The code contained herein is licensed under the GNU General Public
  5 * License. You may obtain a copy of the GNU General Public License
  6 * Version 2 or later at the following locations:
  7 *
  8 * http://www.opensource.org/licenses/gpl-license.html
  9 * http://www.gnu.org/copyleft/gpl.html
 10 */
 11
 12/dts-v1/;
 13#include "bcm2835.dtsi"
 14#include "bcm2835-rpi.dtsi"
 15#include "bcm283x-rpi-usb-otg.dtsi"
 16
 17/ {
 18	compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
 19	model = "Raspberry Pi Zero W";
 20
 21	chosen {
 22		/* 8250 auxiliary UART instead of pl011 */
 23		stdout-path = "serial1:115200n8";
 24	};
 25
 26	leds {
 27		act {
 28			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
 29		};
 30	};
 31
 32	wifi_pwrseq: wifi-pwrseq {
 33		compatible = "mmc-pwrseq-simple";
 34		pinctrl-names = "default";
 35		pinctrl-0 = <&wl_on>;
 36		reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
 37	};
 38};
 39
 40&gpio {
 41	/*
 42	 * This is based on the official GPU firmware DT blob.
 43	 *
 44	 * Legend:
 45	 * "NC" = not connected (no rail from the SoC)
 46	 * "FOO" = GPIO line named "FOO" on the schematic
 47	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 48	 */
 49	gpio-line-names = "GPIO0",
 50			  "GPIO1",
 51			  "SDA1",
 52			  "SCL1",
 53			  "GPIO_GCLK",
 54			  "GPIO5",
 55			  "GPIO6",
 56			  "SPI_CE1_N",
 57			  "SPI_CE0_N",
 58			  "SPI_MISO",
 59			  "SPI_MOSI",
 60			  "SPI_SCLK",
 61			  "GPIO12",
 62			  "GPIO13",
 63			  /* Serial port */
 64			  "TXD0",
 65			  "RXD0",
 66			  "GPIO16",
 67			  "GPIO17",
 68			  "GPIO18",
 69			  "GPIO19",
 70			  "GPIO20",
 71			  "GPIO21",
 72			  "GPIO22",
 73			  "GPIO23",
 74			  "GPIO24",
 75			  "GPIO25",
 76			  "GPIO26",
 77			  "GPIO27",
 78			  "SDA0",
 79			  "SCL0",
 80			  "NC", /* GPIO30 */
 81			  "NC", /* GPIO31 */
 82			  "NC", /* GPIO32 */
 83			  "NC", /* GPIO33 */
 84			  "NC", /* GPIO34 */
 85			  "NC", /* GPIO35 */
 86			  "NC", /* GPIO36 */
 87			  "NC", /* GPIO37 */
 88			  "NC", /* GPIO38 */
 89			  "NC", /* GPIO39 */
 90			  "CAM_GPIO1", /* GPIO40 */
 91			  "WL_ON", /* GPIO41 */
 92			  "NC", /* GPIO42 */
 93			  "WIFI_CLK", /* GPIO43 */
 94			  "CAM_GPIO0", /* GPIO44 */
 95			  "BT_ON", /* GPIO45 */
 96			  "HDMI_HPD_N",
 97			  "STATUS_LED_N",
 98			  /* Used by SD Card */
 99			  "SD_CLK_R",
100			  "SD_CMD_R",
101			  "SD_DATA0_R",
102			  "SD_DATA1_R",
103			  "SD_DATA2_R",
104			  "SD_DATA3_R";
105
106	pinctrl-0 = <&gpioout &alt0>;
107
108	wl_on: wl-on {
109		brcm,pins = <41>;
110		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
111	};
112};
113
114&hdmi {
115	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
116};
117
118&sdhci {
119	#address-cells = <1>;
120	#size-cells = <0>;
121	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
122	mmc-pwrseq = <&wifi_pwrseq>;
123	non-removable;
124	status = "okay";
125
126	brcmf: wifi@1 {
127		reg = <1>;
128		compatible = "brcm,bcm4329-fmac";
129	};
130};
131
132&uart0 {
133	pinctrl-names = "default";
134	pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
135	status = "okay";
136
137	bluetooth {
138		compatible = "brcm,bcm43438-bt";
139		max-speed = <2000000>;
140		shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
141	};
142};
143
144&uart1 {
145	pinctrl-names = "default";
146	pinctrl-0 = <&uart1_gpio14>;
147	status = "okay";
148};