The Raspberry Pi Zero W has the same components like the Zero plus a Cypress CYW43438 wireless chip (wifi + bl). Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx> --- arch/arm/boot/dts/Makefile | 3 +- arch/arm/boot/dts/bcm2835-rpi-zero-w.dts | 139 +++++++++++++++++++++++++++++++ 2 files changed, 141 insertions(+), 1 deletion(-) create mode 100644 arch/arm/boot/dts/bcm2835-rpi-zero-w.dts I'm not sure that GPIO34 to GPIO39 are really "not connected". They are listed in dt-blob.dts, but only declared as input. Still no full schematics available. diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 4b17f35..6e632a3 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -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 \ diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts new file mode 100644 index 0000000..82651c3 --- /dev/null +++ b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts @@ -0,0 +1,139 @@ +/* + * Copyright (C) 2017 Stefan Wahren <stefan.wahren@xxxxxxxx> + * + * 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"; +}; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
