|  | // SPDX-License-Identifier: GPL-2.0+ | 
|  | /* | 
|  | * Copyright (C) 2017 Stefan Wahren <[email protected]> | 
|  | */ | 
|  |  | 
|  | /dts-v1/; | 
|  | #include "bcm2835.dtsi" | 
|  | #include "bcm2835-rpi.dtsi" | 
|  | #include "bcm283x-rpi-usb-otg.dtsi" | 
|  |  | 
|  | / { | 
|  | compatible = "raspberrypi,model-zero-w", "brcm,bcm2835"; | 
|  | model = "Raspberry Pi Zero W"; | 
|  |  | 
|  | memory@0 { | 
|  | device_type = "memory"; | 
|  | reg = <0 0x20000000>; | 
|  | }; | 
|  |  | 
|  | chosen { | 
|  | /* 8250 auxiliary UART instead of pl011 */ | 
|  | stdout-path = "serial1:115200n8"; | 
|  | }; | 
|  |  | 
|  | leds { | 
|  | act { | 
|  | gpios = <&gpio 47 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | wifi_pwrseq: wifi-pwrseq { | 
|  | compatible = "mmc-pwrseq-simple"; | 
|  | 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 = "ID_SDA", | 
|  | "ID_SCL", | 
|  | "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>; | 
|  | }; | 
|  |  | 
|  | &hdmi { | 
|  | hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; | 
|  | power-domains = <&power RPI_POWER_DOMAIN_HDMI>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &sdhci { | 
|  | #address-cells = <1>; | 
|  | #size-cells = <0>; | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>; | 
|  | bus-width = <4>; | 
|  | mmc-pwrseq = <&wifi_pwrseq>; | 
|  | non-removable; | 
|  | status = "okay"; | 
|  |  | 
|  | brcmf: wifi@1 { | 
|  | reg = <1>; | 
|  | compatible = "brcm,bcm4329-fmac"; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &sdhost { | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&sdhost_gpio48>; | 
|  | bus-width = <4>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &uart0 { | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>; | 
|  | status = "okay"; | 
|  |  | 
|  | bluetooth { | 
|  | compatible = "brcm,bcm43438-bt"; | 
|  | max-speed = <2000000>; | 
|  | shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &uart1 { | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&uart1_gpio14>; | 
|  | status = "okay"; | 
|  | }; |