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From 97425acaefeeb2bf4a704225b544cdd863bc5bc6 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 24 May 2016 16:30:05 +0100
Subject: [PATCH] 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>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/bcm2708-rpi-0-w.dts | 200 ++++++++++++++++++++++++++++++++++
2 files changed, 201 insertions(+)
create mode 100644 arch/arm/boot/dts/bcm2708-rpi-0-w.dts
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -2,6 +2,7 @@ ifeq ($(CONFIG_OF),y)
dtb-$(CONFIG_ARCH_BCM2708) += bcm2708-rpi-b.dtb
dtb-$(CONFIG_ARCH_BCM2708) += bcm2708-rpi-b-plus.dtb
+dtb-$(CONFIG_ARCH_BCM2708) += bcm2708-rpi-0-w.dtb
dtb-$(CONFIG_ARCH_BCM2708) += bcm2708-rpi-cm.dtb
dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-cm.dtb
dtb-$(CONFIG_ARCH_BCM2709) += bcm2709-rpi-2-b.dtb
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
@@ -0,0 +1,200 @@
+/dts-v1/;
+
+#include "bcm2708.dtsi"
+
+/ {
+ compatible = "brcm,bcm2708";
+ 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 7 7 7 7 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";
+ uart0_clkrate = <&clk_uart0>,"clock-frequency:0";
+ 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";
+ core_freq = <&clk_core>,"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";
+ };
+};
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