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Commit 2c7c040c authored by Stefan Wahren's avatar Stefan Wahren Committed by Eric Anholt
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ARM: dts: bcm2835: Add Raspberry Pi Zero W 



The Raspberry Pi Zero W has the same components like the Zero plus
a Cypress CYW43438 wireless chip (wifi + bl).

Signed-off-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
Reviewed-by: default avatarEric Anholt <eric@anholt.net>
parent 79c2a9d3

arch/arm/boot/dts/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -73,7 +73,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += \ 
	bcm2835-rpi-a-plus.dtb \

	bcm2836-rpi-2-b.dtb \

	bcm2837-rpi-3-b.dtb \

	bcm2835-rpi-zero.dtb

	bcm2835-rpi-zero.dtb \

	bcm2835-rpi-zero-w.dtb

dtb-$(CONFIG_ARCH_BCM_5301X) += \

	bcm4708-asus-rt-ac56u.dtb \

	bcm4708-asus-rt-ac68u.dtb \

arch/arm/boot/dts/bcm2835-rpi-zero-w.dts

0 → 100644
+139 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2017 Stefan Wahren <stefan.wahren@i2se.com>

 *

 * The code contained herein is licensed under the GNU General Public

 * License. You may obtain a copy of the GNU General Public License

 * Version 2 or later at the following locations:

 *

 * http://www.opensource.org/licenses/gpl-license.html

 * http://www.gnu.org/copyleft/gpl.html

 */



/dts-v1/;

#include "bcm2835.dtsi"

#include "bcm2835-rpi.dtsi"

#include "bcm283x-rpi-usb-host.dtsi"



/ {

	compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";

	model = "Raspberry Pi Zero W";



	/* Needed by firmware to properly init UARTs */

	aliases {

		uart0 = "/soc/serial@7e201000";

		uart1 = "/soc/serial@7e215040";

		serial0 = "/soc/serial@7e201000";

		serial1 = "/soc/serial@7e215040";

	};



	leds {

		act {

			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;

		};

	};



	wifi_pwrseq: wifi-pwrseq {

		compatible = "mmc-pwrseq-simple";

		pinctrl-names = "default";

		pinctrl-0 = <&wl_on>;

		reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;

	};

};



&gpio {

	/*

	 * This is based on the official GPU firmware DT blob.

	 *

	 * Legend:

	 * "NC" = not connected (no rail from the SoC)

	 * "FOO" = GPIO line named "FOO" on the schematic

	 * "FOO_N" = GPIO line named "FOO" on schematic, active low

	 */

	gpio-line-names = "GPIO0",

			  "GPIO1",

			  "SDA1",

			  "SCL1",

			  "GPIO_GCLK",

			  "GPIO5",

			  "GPIO6",

			  "SPI_CE1_N",

			  "SPI_CE0_N",

			  "SPI_MISO",

			  "SPI_MOSI",

			  "SPI_SCLK",

			  "GPIO12",

			  "GPIO13",

			  /* Serial port */

			  "TXD0",

			  "RXD0",

			  "GPIO16",

			  "GPIO17",

			  "GPIO18",

			  "GPIO19",

			  "GPIO20",

			  "GPIO21",

			  "GPIO22",

			  "GPIO23",

			  "GPIO24",

			  "GPIO25",

			  "GPIO26",

			  "GPIO27",

			  "SDA0",

			  "SCL0",

			  "NC", /* GPIO30 */

			  "NC", /* GPIO31 */

			  "NC", /* GPIO32 */

			  "NC", /* GPIO33 */

			  "NC", /* GPIO34 */

			  "NC", /* GPIO35 */

			  "NC", /* GPIO36 */

			  "NC", /* GPIO37 */

			  "NC", /* GPIO38 */

			  "NC", /* GPIO39 */

			  "CAM_GPIO1", /* GPIO40 */

			  "WL_ON", /* GPIO41 */

			  "NC", /* GPIO42 */

			  "WIFI_CLK", /* GPIO43 */

			  "CAM_GPIO0", /* GPIO44 */

			  "BT_ON", /* GPIO45 */

			  "HDMI_HPD_N",

			  "STATUS_LED_N",

			  /* Used by SD Card */

			  "SD_CLK_R",

			  "SD_CMD_R",

			  "SD_DATA0_R",

			  "SD_DATA1_R",

			  "SD_DATA2_R",

			  "SD_DATA3_R";



	pinctrl-0 = <&gpioout &alt0>;



	wl_on: wl-on {

		brcm,pins = <41>;

		brcm,function = <BCM2835_FSEL_GPIO_OUT>;

	};

};



&hdmi {

	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;

};



&sdhci {

	#address-cells = <1>;

	#size-cells = <0>;

	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;

	mmc-pwrseq = <&wifi_pwrseq>;

	non-removable;

	status = "okay";



	brcmf: wifi@1 {

		reg = <1>;

		compatible = "brcm,bcm4329-fmac";

	};

};



&uart0 {

	pinctrl-names = "default";

	pinctrl-0 = <&uart0_gpio14>;

	status = "okay";

};