@@ -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 \
new file mode 100644
@@ -0,0 +1,139 @@
+/*
+ * 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";
+};
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@i2se.com> --- 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.