BCM270X_DT: Add bcm2708-rpi-0-w.dts

Add DT support for the Pi Zero W. N.B. It will not be loaded
automatically without a corresponding change to the firmware.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 0263d6172d3af40668c02535a4f8dce022f3a93d..3c758781b9171f957b6afdd87c169795a61007a5 100644 (file)
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -4,6 +4,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
        bcm2708-rpi-b.dtb \
        bcm2708-rpi-b-plus.dtb \
        bcm2708-rpi-cm.dtb \
+       bcm2708-rpi-0-w.dtb \
        bcm2709-rpi-2-b.dtb \
        bcm2710-rpi-3-b.dtb \
        bcm2710-rpi-cm3.dtb

diff --git a/arch/arm/boot/dts/bcm2708-rpi-0-w.dts b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
new file mode 100644 (file)
index 0000000..db0f99d
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
@@ -0,0 +1,197 @@
+/dts-v1/;
+
+#include "bcm2708.dtsi"
+
+/ {
+       model = "Raspberry Pi Zero W";
+};
+
+&gpio {
+       sdhost_pins: sdhost_pins {
+               brcm,pins = <48 49 50 51 52 53>;
+               brcm,function = <4>; /* alt0 */
+       };
+
+       spi0_pins: spi0_pins {
+               brcm,pins = <9 10 11>;
+               brcm,function = <4>; /* alt0 */
+       };
+
+       spi0_cs_pins: spi0_cs_pins {
+               brcm,pins = <8 7>;
+               brcm,function = <1>; /* output */
+       };
+
+       i2c0_pins: i2c0 {
+               brcm,pins = <0 1>;
+               brcm,function = <4>;
+       };
+
+       i2c1_pins: i2c1 {
+               brcm,pins = <2 3>;
+               brcm,function = <4>;
+       };
+
+       i2s_pins: i2s {
+               brcm,pins = <18 19 20 21>;
+               brcm,function = <4>; /* alt0 */
+       };
+
+       sdio_pins: sdio_pins {
+               brcm,pins = <34 35 36 37 38 39>;
+               brcm,function = <7>; /* ALT3 = SD1 */
+               brcm,pull = <0 2 2 2 2 2>;
+       };
+
+       bt_pins: bt_pins {
+               brcm,pins = <43>;
+               brcm,function = <4>; /* alt0:GPCLK2 */
+               brcm,pull = <0>; /* none */
+       };
+
+       uart0_pins: uart0_pins {
+               brcm,pins = <30 31 32 33>;
+               brcm,function = <7>; /* alt3=UART0 */
+               brcm,pull = <2 0 0 2>; /* up none none up */
+       };
+
+       uart1_pins: uart1_pins {
+               brcm,pins;
+               brcm,function;
+               brcm,pull;
+       };
+
+       audio_pins: audio_pins {
+               brcm,pins = <>;
+               brcm,function = <>;
+       };
+};
+
+&sdhost {
+       pinctrl-names = "default";
+       pinctrl-0 = <&sdhost_pins>;
+       bus-width = <4>;
+       status = "okay";
+};
+
+&mmc {
+       pinctrl-names = "default";
+       pinctrl-0 = <&sdio_pins>;
+       non-removable;
+       bus-width = <4>;
+       status = "okay";
+};
+
+&fb {
+       status = "okay";
+};
+
+&uart0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart0_pins &bt_pins>;
+       status = "okay";
+};
+
+&uart1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart1_pins>;
+       status = "okay";
+};
+
+&spi0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
+       cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
+
+       spidev0: spidev@0{
+               compatible = "spidev";
+               reg = <0>;      /* CE0 */
+               #address-cells = <1>;
+               #size-cells = <0>;
+               spi-max-frequency = <500000>;
+       };
+
+       spidev1: spidev@1{
+               compatible = "spidev";
+               reg = <1>;      /* CE1 */
+               #address-cells = <1>;
+               #size-cells = <0>;
+               spi-max-frequency = <500000>;
+       };
+};
+
+&i2c0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c0_pins>;
+       clock-frequency = <100000>;
+};
+
+&i2c1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c1_pins>;
+       clock-frequency = <100000>;
+};
+
+&i2c2 {
+       clock-frequency = <100000>;
+};
+
+&i2s {
+       #sound-dai-cells = <0>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2s_pins>;
+};
+
+&random {
+       status = "okay";
+};
+
+&leds {
+       act_led: act {
+               label = "led0";
+               linux,default-trigger = "mmc0";
+               gpios = <&gpio 47 0>;
+       };
+};
+
+&hdmi {
+       hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
+};
+
+&audio {
+       pinctrl-names = "default";
+       pinctrl-0 = <&audio_pins>;
+};
+
+/ {
+       chosen {
+               bootargs = "8250.nr_uarts=1";
+       };
+};
+
+/ {
+       __overrides__ {
+               uart0 = <&uart0>,"status";
+               uart1 = <&uart1>,"status";
+               i2s = <&i2s>,"status";
+               spi = <&spi0>,"status";
+               i2c0 = <&i2c0>,"status";
+               i2c1 = <&i2c1>,"status";
+               i2c2_iknowwhatimdoing = <&i2c2>,"status";
+               i2c0_baudrate = <&i2c0>,"clock-frequency:0";
+               i2c1_baudrate = <&i2c1>,"clock-frequency:0";
+               i2c2_baudrate = <&i2c2>,"clock-frequency:0";
+
+               act_led_gpio = <&act_led>,"gpios:4";
+               act_led_activelow = <&act_led>,"gpios:8";
+               act_led_trigger = <&act_led>,"linux,default-trigger";
+
+               audio = <&audio>,"status";
+               watchdog = <&watchdog>,"status";
+               random = <&random>,"status";
+               sd_overclock = <&sdhost>,"brcm,overclock-50:0";
+               sd_force_pio = <&sdhost>,"brcm,force-pio?";
+               sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
+               sd_debug     = <&sdhost>,"brcm,debug";
+       };
+};